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authormarha <marha@users.sourceforge.net>2010-11-29 22:05:53 +0000
committermarha <marha@users.sourceforge.net>2010-11-29 22:05:53 +0000
commitfed109d6a33c0871291d1bb2f3f6b7a3d1a3e9d7 (patch)
treefa1ba494685a71e28a096990a8707680c7cb378b /mesalib/src/glsl
parentae340911c1ba1f98b418bd8f1a487fa4d79491b0 (diff)
parent6fda93be42ace9eeab0e82ceebb6798961c9105c (diff)
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svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/glsl')
-rw-r--r--mesalib/src/glsl/Makefile185
-rw-r--r--mesalib/src/glsl/README229
-rw-r--r--mesalib/src/glsl/SConscript121
-rw-r--r--mesalib/src/glsl/apps/Makefile43
-rw-r--r--mesalib/src/glsl/apps/compile.c192
-rw-r--r--mesalib/src/glsl/apps/process.c383
-rw-r--r--mesalib/src/glsl/apps/purify.c108
-rw-r--r--mesalib/src/glsl/apps/tokenise.c335
-rw-r--r--mesalib/src/glsl/apps/version.c117
-rw-r--r--mesalib/src/glsl/ast.h702
-rw-r--r--mesalib/src/glsl/ast_expr.cpp96
-rw-r--r--mesalib/src/glsl/ast_function.cpp1241
-rw-r--r--mesalib/src/glsl/ast_to_hir.cpp2769
-rw-r--r--mesalib/src/glsl/ast_type.cpp122
-rw-r--r--mesalib/src/glsl/builtin_function.cpp19203
-rw-r--r--mesalib/src/glsl/builtin_types.h297
-rw-r--r--mesalib/src/glsl/builtin_variables.h105
-rw-r--r--mesalib/src/glsl/cl/Makefile13
-rw-r--r--mesalib/src/glsl/cl/sl_cl_parse.c3001
-rw-r--r--mesalib/src/glsl/cl/sl_cl_parse.h40
-rw-r--r--mesalib/src/glsl/getopt.cpp552
-rw-r--r--mesalib/src/glsl/glcpp/README32
-rw-r--r--mesalib/src/glsl/glcpp/glcpp-lex.c2691
-rw-r--r--mesalib/src/glsl/glcpp/glcpp-lex.l325
-rw-r--r--mesalib/src/glsl/glcpp/glcpp-parse.c4184
-rw-r--r--mesalib/src/glsl/glcpp/glcpp-parse.h100
-rw-r--r--mesalib/src/glsl/glcpp/glcpp-parse.y1858
-rw-r--r--mesalib/src/glsl/glcpp/glcpp.c131
-rw-r--r--mesalib/src/glsl/glcpp/glcpp.h222
-rw-r--r--mesalib/src/glsl/glcpp/pp.c167
-rw-r--r--mesalib/src/glsl/glsl_lexer.cpp3488
-rw-r--r--mesalib/src/glsl/glsl_lexer.lpp399
-rw-r--r--mesalib/src/glsl/glsl_parser.cpp5232
-rw-r--r--mesalib/src/glsl/glsl_parser.h298
-rw-r--r--mesalib/src/glsl/glsl_parser.ypp1503
-rw-r--r--mesalib/src/glsl/glsl_parser_extras.cpp762
-rw-r--r--mesalib/src/glsl/glsl_parser_extras.h240
-rw-r--r--mesalib/src/glsl/glsl_symbol_table.cpp165
-rw-r--r--mesalib/src/glsl/glsl_symbol_table.h126
-rw-r--r--mesalib/src/glsl/glsl_types.cpp497
-rw-r--r--mesalib/src/glsl/glsl_types.h476
-rw-r--r--mesalib/src/glsl/hir_field_selection.cpp102
-rw-r--r--mesalib/src/glsl/ir.cpp1238
-rw-r--r--mesalib/src/glsl/ir.h1511
-rw-r--r--mesalib/src/glsl/ir_algebraic.cpp474
-rw-r--r--mesalib/src/glsl/ir_basic_block.cpp149
-rw-r--r--mesalib/src/glsl/ir_basic_block.h28
-rw-r--r--mesalib/src/glsl/ir_clone.cpp405
-rw-r--r--mesalib/src/glsl/ir_constant_expression.cpp1194
-rw-r--r--mesalib/src/glsl/ir_constant_folding.cpp147
-rw-r--r--mesalib/src/glsl/ir_constant_propagation.cpp437
-rw-r--r--mesalib/src/glsl/ir_constant_variable.cpp198
-rw-r--r--mesalib/src/glsl/ir_copy_propagation.cpp348
-rw-r--r--mesalib/src/glsl/ir_dead_code.cpp142
-rw-r--r--mesalib/src/glsl/ir_dead_code_local.cpp229
-rw-r--r--mesalib/src/glsl/ir_dead_functions.cpp151
-rw-r--r--mesalib/src/glsl/ir_div_to_mul_rcp.cpp115
-rw-r--r--mesalib/src/glsl/ir_explog_to_explog2.cpp85
-rw-r--r--mesalib/src/glsl/ir_expression_flattening.cpp92
-rw-r--r--mesalib/src/glsl/ir_expression_flattening.h38
-rw-r--r--mesalib/src/glsl/ir_function.cpp227
-rw-r--r--mesalib/src/glsl/ir_function_can_inline.cpp74
-rw-r--r--mesalib/src/glsl/ir_function_inlining.cpp417
-rw-r--r--mesalib/src/glsl/ir_function_inlining.h30
-rw-r--r--mesalib/src/glsl/ir_hierarchical_visitor.cpp297
-rw-r--r--mesalib/src/glsl/ir_hierarchical_visitor.h183
-rw-r--r--mesalib/src/glsl/ir_hv_accept.cpp378
-rw-r--r--mesalib/src/glsl/ir_if_simplification.cpp84
-rw-r--r--mesalib/src/glsl/ir_if_to_cond_assign.cpp168
-rw-r--r--mesalib/src/glsl/ir_import_prototypes.cpp138
-rw-r--r--mesalib/src/glsl/ir_lower_jumps.cpp544
-rw-r--r--mesalib/src/glsl/ir_mat_op_to_vec.cpp488
-rw-r--r--mesalib/src/glsl/ir_mod_to_fract.cpp90
-rw-r--r--mesalib/src/glsl/ir_noop_swizzle.cpp80
-rw-r--r--mesalib/src/glsl/ir_optimization.h61
-rw-r--r--mesalib/src/glsl/ir_print_visitor.cpp465
-rw-r--r--mesalib/src/glsl/ir_print_visitor.h83
-rw-r--r--mesalib/src/glsl/ir_reader.cpp1146
-rw-r--r--mesalib/src/glsl/ir_reader.h34
-rw-r--r--mesalib/src/glsl/ir_rvalue_visitor.cpp141
-rw-r--r--mesalib/src/glsl/ir_rvalue_visitor.h47
-rw-r--r--mesalib/src/glsl/ir_set_program_inouts.cpp167
-rw-r--r--mesalib/src/glsl/ir_structure_splitting.cpp361
-rw-r--r--mesalib/src/glsl/ir_sub_to_add_neg.cpp76
-rw-r--r--mesalib/src/glsl/ir_swizzle_swizzle.cpp93
-rw-r--r--mesalib/src/glsl/ir_tree_grafting.cpp367
-rw-r--r--mesalib/src/glsl/ir_validate.cpp452
-rw-r--r--mesalib/src/glsl/ir_variable.cpp493
-rw-r--r--mesalib/src/glsl/ir_variable_refcount.cpp113
-rw-r--r--mesalib/src/glsl/ir_variable_refcount.h78
-rw-r--r--mesalib/src/glsl/ir_vec_index_to_cond_assign.cpp258
-rw-r--r--mesalib/src/glsl/ir_vec_index_to_swizzle.cpp157
-rw-r--r--mesalib/src/glsl/ir_visitor.h84
-rw-r--r--mesalib/src/glsl/link_functions.cpp262
-rw-r--r--mesalib/src/glsl/linker.cpp1505
-rw-r--r--mesalib/src/glsl/linker.h35
-rw-r--r--mesalib/src/glsl/list.h513
-rw-r--r--mesalib/src/glsl/loop_analysis.cpp496
-rw-r--r--mesalib/src/glsl/loop_analysis.h230
-rw-r--r--mesalib/src/glsl/loop_controls.cpp301
-rw-r--r--mesalib/src/glsl/loop_unroll.cpp187
-rw-r--r--mesalib/src/glsl/lower_noise.cpp71
-rw-r--r--mesalib/src/glsl/lower_variable_index_to_cond_assign.cpp358
-rw-r--r--mesalib/src/glsl/main.cpp342
-rw-r--r--mesalib/src/glsl/opt_redundant_jumps.cpp111
-rw-r--r--mesalib/src/glsl/pp/Makefile27
-rw-r--r--mesalib/src/glsl/pp/sl_pp_context.c182
-rw-r--r--mesalib/src/glsl/pp/sl_pp_context.h100
-rw-r--r--mesalib/src/glsl/pp/sl_pp_define.c238
-rw-r--r--mesalib/src/glsl/pp/sl_pp_dict.c85
-rw-r--r--mesalib/src/glsl/pp/sl_pp_dict.h77
-rw-r--r--mesalib/src/glsl/pp/sl_pp_error.c270
-rw-r--r--mesalib/src/glsl/pp/sl_pp_expression.c411
-rw-r--r--mesalib/src/glsl/pp/sl_pp_expression.h40
-rw-r--r--mesalib/src/glsl/pp/sl_pp_extension.c178
-rw-r--r--mesalib/src/glsl/pp/sl_pp_if.c340
-rw-r--r--mesalib/src/glsl/pp/sl_pp_line.c127
-rw-r--r--mesalib/src/glsl/pp/sl_pp_macro.c414
-rw-r--r--mesalib/src/glsl/pp/sl_pp_macro.h73
-rw-r--r--mesalib/src/glsl/pp/sl_pp_pragma.c109
-rw-r--r--mesalib/src/glsl/pp/sl_pp_process.c328
-rw-r--r--mesalib/src/glsl/pp/sl_pp_process.h116
-rw-r--r--mesalib/src/glsl/pp/sl_pp_public.h83
-rw-r--r--mesalib/src/glsl/pp/sl_pp_purify.c302
-rw-r--r--mesalib/src/glsl/pp/sl_pp_purify.h63
-rw-r--r--mesalib/src/glsl/pp/sl_pp_token.c854
-rw-r--r--mesalib/src/glsl/pp/sl_pp_token.h133
-rw-r--r--mesalib/src/glsl/pp/sl_pp_token_util.c182
-rw-r--r--mesalib/src/glsl/pp/sl_pp_token_util.h103
-rw-r--r--mesalib/src/glsl/pp/sl_pp_version.c161
-rw-r--r--mesalib/src/glsl/program.h27
-rw-r--r--mesalib/src/glsl/s_expression.cpp140
-rw-r--r--mesalib/src/glsl/s_expression.h142
133 files changed, 68147 insertions, 9276 deletions
diff --git a/mesalib/src/glsl/Makefile b/mesalib/src/glsl/Makefile
index ca7f2d2ac..47ac42667 100644
--- a/mesalib/src/glsl/Makefile
+++ b/mesalib/src/glsl/Makefile
@@ -1,15 +1,184 @@
-# src/glsl/Makefile
+#src/glsl/pp/Makefile
TOP = ../..
include $(TOP)/configs/current
-SUBDIRS = pp cl apps
+LIBNAME = glsl
-default install clean:
- @for dir in $(SUBDIRS) ; do \
- if [ -d $$dir ] ; then \
- (cd $$dir && $(MAKE) $@) || exit 1; \
- fi \
- done
+LIBGLCPP_SOURCES = \
+ glcpp/glcpp-lex.c \
+ glcpp/glcpp-parse.c \
+ glcpp/pp.c
+GLCPP_SOURCES = \
+ $(LIBGLCPP_SOURCES) \
+ glcpp/glcpp.c
+
+C_SOURCES = \
+ $(LIBGLCPP_SOURCES)
+
+CXX_SOURCES = \
+ ast_expr.cpp \
+ ast_function.cpp \
+ ast_to_hir.cpp \
+ ast_type.cpp \
+ builtin_function.cpp \
+ glsl_lexer.cpp \
+ glsl_parser.cpp \
+ glsl_parser_extras.cpp \
+ glsl_types.cpp \
+ glsl_symbol_table.cpp \
+ hir_field_selection.cpp \
+ ir_algebraic.cpp \
+ ir_basic_block.cpp \
+ ir_clone.cpp \
+ ir_constant_expression.cpp \
+ ir_constant_folding.cpp \
+ ir_constant_propagation.cpp \
+ ir_constant_variable.cpp \
+ ir_copy_propagation.cpp \
+ ir.cpp \
+ ir_dead_code.cpp \
+ ir_dead_code_local.cpp \
+ ir_dead_functions.cpp \
+ ir_div_to_mul_rcp.cpp \
+ ir_explog_to_explog2.cpp \
+ ir_expression_flattening.cpp \
+ ir_function_can_inline.cpp \
+ ir_function.cpp \
+ ir_function_inlining.cpp \
+ ir_hierarchical_visitor.cpp \
+ ir_hv_accept.cpp \
+ ir_if_simplification.cpp \
+ ir_if_to_cond_assign.cpp \
+ ir_import_prototypes.cpp \
+ ir_lower_jumps.cpp \
+ ir_mat_op_to_vec.cpp \
+ ir_mod_to_fract.cpp \
+ ir_noop_swizzle.cpp \
+ ir_print_visitor.cpp \
+ ir_reader.cpp \
+ ir_rvalue_visitor.cpp \
+ ir_set_program_inouts.cpp \
+ ir_structure_splitting.cpp \
+ ir_sub_to_add_neg.cpp \
+ ir_swizzle_swizzle.cpp \
+ ir_tree_grafting.cpp \
+ ir_validate.cpp \
+ ir_variable.cpp \
+ ir_variable_refcount.cpp \
+ ir_vec_index_to_cond_assign.cpp \
+ ir_vec_index_to_swizzle.cpp \
+ linker.cpp \
+ link_functions.cpp \
+ loop_analysis.cpp \
+ loop_controls.cpp \
+ loop_unroll.cpp \
+ lower_noise.cpp \
+ lower_variable_index_to_cond_assign.cpp \
+ opt_redundant_jumps.cpp \
+ s_expression.cpp
+
+LIBS = \
+ $(TOP)/src/glsl/libglsl.a \
+ $(TALLOC_LIBS)
+
+APPS = glsl_compiler glcpp/glcpp
+
+GLSL2_C_SOURCES = \
+ ../mesa/program/hash_table.c \
+ ../mesa/program/symbol_table.c
+GLSL2_CXX_SOURCES = \
+ main.cpp
+
+GLSL2_OBJECTS = \
+ $(GLSL2_C_SOURCES:.c=.o) \
+ $(GLSL2_CXX_SOURCES:.cpp=.o)
+
+### Basic defines ###
+
+DEFINES += \
+ $(LIBRARY_DEFINES) \
+ $(API_DEFINES)
+
+GLCPP_OBJECTS = \
+ $(GLCPP_SOURCES:.c=.o) \
+ ../mesa/program/hash_table.o
+
+OBJECTS = \
+ $(C_SOURCES:.c=.o) \
+ $(CXX_SOURCES:.cpp=.o)
+
+INCLUDES = \
+ $(TALLOC_CFLAGS) \
+ -I. \
+ -I../mesa \
+ -I../mapi \
+ -I../../include \
+ $(LIBRARY_INCLUDES)
+
+ALL_SOURCES = \
+ $(C_SOURCES) \
+ $(CXX_SOURCES) \
+ $(GLSL2_CXX_SOURCES) \
+ $(GLSL2_C_SOURCES)
+
+##### TARGETS #####
+
+default: depend lib$(LIBNAME).a $(APPS)
+
+lib$(LIBNAME).a: $(OBJECTS) Makefile $(TOP)/src/glsl/Makefile.template
+ $(MKLIB) -cplusplus -o $(LIBNAME) -static $(OBJECTS)
+
+depend: $(ALL_SOURCES) Makefile
+ rm -f depend
+ touch depend
+ $(MKDEP) $(MKDEP_OPTIONS) $(INCLUDES) $(ALL_SOURCES) 2> /dev/null
+
+# Remove .o and backup files
+clean:
+ rm -f $(GLCPP_OBJECTS) $(GLSL2_OBJECTS) $(OBJECTS) lib$(LIBNAME).a depend depend.bak
+ -rm -f $(APPS)
+
+# Dummy target
+install:
+ @echo -n ""
+
+
+##### RULES #####
+
+glsl_compiler: $(GLSL2_OBJECTS) libglsl.a
+ $(APP_CXX) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $(GLSL2_OBJECTS) $(LIBS) -o $@
+
+glcpp/glcpp: $(GLCPP_OBJECTS) libglsl.a
+ $(APP_CC) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $(GLCPP_OBJECTS) $(LIBS) -o $@
+
+.cpp.o:
+ $(CXX) -c $(INCLUDES) $(CXXFLAGS) $(DEFINES) $< -o $@
+
+.c.o:
+ $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+glsl_lexer.cpp: glsl_lexer.lpp
+ flex --nounistd -o$@ $<
+
+glsl_parser.cpp: glsl_parser.ypp
+ bison -v -o "$@" -p "_mesa_glsl_" --defines=glsl_parser.h $<
+
+glcpp/glcpp-lex.c: glcpp/glcpp-lex.l
+ flex --nounistd -o$@ $<
+
+glcpp/glcpp-parse.c: glcpp/glcpp-parse.y
+ bison -v -o "$@" --defines=glcpp/glcpp-parse.h $<
+
+builtins: builtin_function.cpp builtins/profiles/* builtins/ir/* builtins/tools/generate_builtins.py builtins/tools/texture_builtins.py
+ @echo Bootstrapping the compiler...
+ cp builtins/tools/builtin_function.cpp .
+ make glsl_compiler
+ @echo Regenerating builtin_function.cpp...
+ ./builtins/tools/generate_builtins.py > builtin_function.cpp
+ @echo Rebuilding the real compiler...
+ make glsl_compiler
+
+-include depend
diff --git a/mesalib/src/glsl/README b/mesalib/src/glsl/README
new file mode 100644
index 000000000..dd80a53d4
--- /dev/null
+++ b/mesalib/src/glsl/README
@@ -0,0 +1,229 @@
+Welcome to Mesa's GLSL compiler. A brief overview of how things flow:
+
+1) lex and yacc-based preprocessor takes the incoming shader string
+and produces a new string containing the preprocessed shader. This
+takes care of things like #if, #ifdef, #define, and preprocessor macro
+invocations. Note that #version, #extension, and some others are
+passed straight through. See glcpp/*
+
+2) lex and yacc-based parser takes the preprocessed string and
+generates the AST (abstract syntax tree). Almost no checking is
+performed in this stage. See glsl_lexer.lpp and glsl_parser.ypp.
+
+3) The AST is converted to "HIR". This is the intermediate
+representation of the compiler. Constructors are generated, function
+calls are resolved to particular function signatures, and all the
+semantic checking is performed. See ast_*.cpp for the conversion, and
+ir.h for the IR structures.
+
+4) The driver (Mesa, or main.cpp for the standalone binary) performs
+optimizations. These include copy propagation, dead code elimination,
+constant folding, and others. Generally the driver will call
+optimizations in a loop, as each may open up opportunities for other
+optimizations to do additional work. See most files called ir_*.cpp
+
+5) linking is performed. This does checking to ensure that the
+outputs of the vertex shader match the inputs of the fragment shader,
+and assigns locations to uniforms, attributes, and varyings. See
+linker.cpp.
+
+6) The driver may perform additional optimization at this point, as
+for example dead code elimination previously couldn't remove functions
+or global variable usage when we didn't know what other code would be
+linked in.
+
+7) The driver performs code generation out of the IR, taking a linked
+shader program and producing a compiled program for each stage. See
+ir_to_mesa.cpp for Mesa IR code generation.
+
+FAQ:
+
+Q: What is HIR versus IR versus LIR?
+
+A: The idea behind the naming was that ast_to_hir would produce a
+high-level IR ("HIR"), with things like matrix operations, structure
+assignments, etc., present. A series of lowering passes would occur
+that do things like break matrix multiplication into a series of dot
+products/MADs, make structure assignment be a series of assignment of
+components, flatten if statements into conditional moves, and such,
+producing a low level IR ("LIR").
+
+However, it now appears that each driver will have different
+requirements from a LIR. A 915-generation chipset wants all functions
+inlined, all loops unrolled, all ifs flattened, no variable array
+accesses, and matrix multiplication broken down. The Mesa IR backend
+for swrast would like matrices and structure assignment broken down,
+but it can support function calls and dynamic branching. A 965 vertex
+shader IR backend could potentially even handle some matrix operations
+without breaking them down, but the 965 fragment shader IR backend
+would want to break to have (almost) all operations down channel-wise
+and perform optimization on that. As a result, there's no single
+low-level IR that will make everyone happy. So that usage has fallen
+out of favor, and each driver will perform a series of lowering passes
+to take the HIR down to whatever restrictions it wants to impose
+before doing codegen.
+
+Q: How is the IR structured?
+
+A: The best way to get started seeing it would be to run the
+standalone compiler against a shader:
+
+./glsl_compiler --dump-lir \
+ ~/src/piglit/tests/shaders/glsl-orangebook-ch06-bump.frag
+
+So for example one of the ir_instructions in main() contains:
+
+(assign (constant bool (1)) (var_ref litColor) (expression vec3 * (var_ref Surf
+aceColor) (var_ref __retval) ) )
+
+Or more visually:
+ (assign)
+ / | \
+ (var_ref) (expression *) (constant bool 1)
+ / / \
+(litColor) (var_ref) (var_ref)
+ / \
+ (SurfaceColor) (__retval)
+
+which came from:
+
+litColor = SurfaceColor * max(dot(normDelta, LightDir), 0.0);
+
+(the max call is not represented in this expression tree, as it was a
+function call that got inlined but not brought into this expression
+tree)
+
+Each of those nodes is a subclass of ir_instruction. A particular
+ir_instruction instance may only appear once in the whole IR tree with
+the exception of ir_variables, which appear once as variable
+declarations:
+
+(declare () vec3 normDelta)
+
+and multiple times as the targets of variable dereferences:
+...
+(assign (constant bool (1)) (var_ref __retval) (expression float dot
+ (var_ref normDelta) (var_ref LightDir) ) )
+...
+(assign (constant bool (1)) (var_ref __retval) (expression vec3 -
+ (var_ref LightDir) (expression vec3 * (constant float (2.000000))
+ (expression vec3 * (expression float dot (var_ref normDelta) (var_ref
+ LightDir) ) (var_ref normDelta) ) ) ) )
+...
+
+Each node has a type. Expressions may involve several different types:
+(declare (uniform ) mat4 gl_ModelViewMatrix)
+((assign (constant bool (1)) (var_ref constructor_tmp) (expression
+ vec4 * (var_ref gl_ModelViewMatrix) (var_ref gl_Vertex) ) )
+
+An expression tree can be arbitrarily deep, and the compiler tries to
+keep them structured like that so that things like algebraic
+optimizations ((color * 1.0 == color) and ((mat1 * mat2) * vec == mat1
+* (mat2 * vec))) or recognizing operation patterns for code generation
+(vec1 * vec2 + vec3 == mad(vec1, vec2, vec3)) are easier. This comes
+at the expense of additional trickery in implementing some
+optimizations like CSE where one must navigate an expression tree.
+
+Q: Why no SSA representation?
+
+A: Converting an IR tree to SSA form makes dead code elmimination,
+common subexpression elimination, and many other optimizations much
+easier. However, in our primarily vector-based language, there's some
+major questions as to how it would work. Do we do SSA on the scalar
+or vector level? If we do it at the vector level, we're going to end
+up with many different versions of the variable when encountering code
+like:
+
+(assign (constant bool (1)) (swiz x (var_ref __retval) ) (var_ref a) )
+(assign (constant bool (1)) (swiz y (var_ref __retval) ) (var_ref b) )
+(assign (constant bool (1)) (swiz z (var_ref __retval) ) (var_ref c) )
+
+If every masked update of a component relies on the previous value of
+the variable, then we're probably going to be quite limited in our
+dead code elimination wins, and recognizing common expressions may
+just not happen. On the other hand, if we operate channel-wise, then
+we'll be prone to optimizing the operation on one of the channels at
+the expense of making its instruction flow different from the other
+channels, and a vector-based GPU would end up with worse code than if
+we didn't optimize operations on that channel!
+
+Once again, it appears that our optimization requirements are driven
+significantly by the target architecture. For now, targeting the Mesa
+IR backend, SSA does not appear to be that important to producing
+excellent code, but we do expect to do some SSA-based optimizations
+for the 965 fragment shader backend when that is developed.
+
+Q: How should I expand instructions that take multiple backend instructions?
+
+Sometimes you'll have to do the expansion in your code generation --
+see, for example, ir_to_mesa.cpp's handling of ir_unop_sqrt. However,
+in many cases you'll want to do a pass over the IR to convert
+non-native instructions to a series of native instructions. For
+example, for the Mesa backend we have ir_div_to_mul_rcp.cpp because
+Mesa IR (and many hardware backends) only have a reciprocal
+instruction, not a divide. Implementing non-native instructions this
+way gives the chance for constant folding to occur, so (a / 2.0)
+becomes (a * 0.5) after codegen instead of (a * (1.0 / 2.0))
+
+Q: How shoud I handle my special hardware instructions with respect to IR?
+
+Our current theory is that if multiple targets have an instruction for
+some operation, then we should probably be able to represent that in
+the IR. Generally this is in the form of an ir_{bin,un}op expression
+type. For example, we initially implemented fract() using (a -
+floor(a)), but both 945 and 965 have instructions to give that result,
+and it would also simplify the implementation of mod(), so
+ir_unop_fract was added. The following areas need updating to add a
+new expression type:
+
+ir.h (new enum)
+ir.cpp:get_num_operands() (used for ir_reader)
+ir.cpp:operator_strs (used for ir_reader)
+ir_constant_expression.cpp (you probably want to be able to constant fold)
+ir_validate.cpp (check users have the right types)
+
+You may also need to update the backends if they will see the new expr type:
+
+../mesa/shaders/ir_to_mesa.cpp
+
+You can then use the new expression from builtins (if all backends
+would rather see it), or scan the IR and convert to use your new
+expression type (see ir_mod_to_fract, for example).
+
+Q: How is memory management handled in the compiler?
+
+The hierarchical memory allocator "talloc" developed for the Samba
+project is used, so that things like optimization passes don't have to
+worry about their garbage collection so much. It has a few nice
+features, including low performance overhead and good debugging
+support that's trivially available.
+
+Generally, each stage of the compile creates a talloc context and
+allocates its memory out of that or children of it. At the end of the
+stage, the pieces still live are stolen to a new context and the old
+one freed, or the whole context is kept for use by the next stage.
+
+For IR transformations, a temporary context is used, then at the end
+of all transformations, reparent_ir reparents all live nodes under the
+shader's IR list, and the old context full of dead nodes is freed.
+When developing a single IR transformation pass, this means that you
+want to allocate instruction nodes out of the temporary context, so if
+it becomes dead it doesn't live on as the child of a live node. At
+the moment, optimization passes aren't passed that temporary context,
+so they find it by calling talloc_parent() on a nearby IR node. The
+talloc_parent() call is expensive, so many passes will cache the
+result of the first talloc_parent(). Cleaning up all the optimization
+passes to take a context argument and not call talloc_parent() is left
+as an exercise.
+
+Q: What is the file naming convention in this directory?
+
+Initially, there really wasn't one. We have since adopted one:
+
+ - Files that implement code lowering passes should be named lower_*
+ (e.g., lower_noise.cpp).
+ - Files that implement optimization passes should be named opt_*.
+ - Files that implement a class that is used throught the code should
+ take the name of that class (e.g., ir_hierarchical_visitor.cpp).
+ - Files that contain code not fitting in one of the previous
+ categories should have a sensible name (e.g., glsl_parser.ypp).
diff --git a/mesalib/src/glsl/SConscript b/mesalib/src/glsl/SConscript
index 8e18626c4..c183e208d 100644
--- a/mesalib/src/glsl/SConscript
+++ b/mesalib/src/glsl/SConscript
@@ -4,23 +4,78 @@ Import('*')
env = env.Clone()
+env.Prepend(CPPPATH = [
+ '#src/mapi',
+ '#src/mesa',
+])
+
+if env['platform'] == 'windows':
+ env.Prepend(CPPPATH = ['#src/talloc'])
+
sources = [
- 'pp/sl_pp_context.c',
- 'pp/sl_pp_define.c',
- 'pp/sl_pp_dict.c',
- 'pp/sl_pp_error.c',
- 'pp/sl_pp_expression.c',
- 'pp/sl_pp_extension.c',
- 'pp/sl_pp_if.c',
- 'pp/sl_pp_line.c',
- 'pp/sl_pp_macro.c',
- 'pp/sl_pp_pragma.c',
- 'pp/sl_pp_process.c',
- 'pp/sl_pp_purify.c',
- 'pp/sl_pp_token.c',
- 'pp/sl_pp_token_util.c',
- 'pp/sl_pp_version.c',
- 'cl/sl_cl_parse.c',
+ 'glcpp/glcpp-lex.c',
+ 'glcpp/glcpp-parse.c',
+ 'glcpp/pp.c',
+ 'ast_expr.cpp',
+ 'ast_function.cpp',
+ 'ast_to_hir.cpp',
+ 'ast_type.cpp',
+ 'builtin_function.cpp',
+ 'glsl_lexer.cpp',
+ 'glsl_parser.cpp',
+ 'glsl_parser_extras.cpp',
+ 'glsl_types.cpp',
+ 'glsl_symbol_table.cpp',
+ 'hir_field_selection.cpp',
+ 'ir_algebraic.cpp',
+ 'ir_basic_block.cpp',
+ 'ir_clone.cpp',
+ 'ir_constant_expression.cpp',
+ 'ir_constant_folding.cpp',
+ 'ir_constant_propagation.cpp',
+ 'ir_constant_variable.cpp',
+ 'ir_copy_propagation.cpp',
+ 'ir.cpp',
+ 'ir_dead_code.cpp',
+ 'ir_dead_code_local.cpp',
+ 'ir_dead_functions.cpp',
+ 'ir_div_to_mul_rcp.cpp',
+ 'ir_explog_to_explog2.cpp',
+ 'ir_expression_flattening.cpp',
+ 'ir_function_can_inline.cpp',
+ 'ir_function.cpp',
+ 'ir_function_inlining.cpp',
+ 'ir_hierarchical_visitor.cpp',
+ 'ir_hv_accept.cpp',
+ 'ir_if_simplification.cpp',
+ 'ir_if_to_cond_assign.cpp',
+ 'ir_import_prototypes.cpp',
+ 'ir_lower_jumps.cpp',
+ 'ir_mat_op_to_vec.cpp',
+ 'ir_mod_to_fract.cpp',
+ 'ir_noop_swizzle.cpp',
+ 'ir_print_visitor.cpp',
+ 'ir_reader.cpp',
+ 'ir_rvalue_visitor.cpp',
+ 'ir_set_program_inouts.cpp',
+ 'ir_structure_splitting.cpp',
+ 'ir_sub_to_add_neg.cpp',
+ 'ir_swizzle_swizzle.cpp',
+ 'ir_tree_grafting.cpp',
+ 'ir_validate.cpp',
+ 'ir_variable.cpp',
+ 'ir_variable_refcount.cpp',
+ 'ir_vec_index_to_cond_assign.cpp',
+ 'ir_vec_index_to_swizzle.cpp',
+ 'linker.cpp',
+ 'link_functions.cpp',
+ 'loop_analysis.cpp',
+ 'loop_controls.cpp',
+ 'loop_unroll.cpp',
+ 'lower_noise.cpp',
+ 'lower_variable_index_to_cond_assign.cpp',
+ 'opt_redundant_jumps.cpp',
+ 's_expression.cpp',
]
glsl = env.ConvenienceLibrary(
@@ -30,6 +85,9 @@ glsl = env.ConvenienceLibrary(
Export('glsl')
+# FIXME: We can't build the programs because there's a cyclic dependency between tis directory and src/mesa
+Return()
+
env = env.Clone()
if env['platform'] == 'windows':
@@ -37,33 +95,16 @@ if env['platform'] == 'windows':
'user32',
])
-env.Prepend(LIBS = [glsl])
-
-env.Program(
- target = 'purify',
- source = ['apps/purify.c'],
-)
+env.Prepend(LIBS = [glsl, talloc])
env.Program(
- target = 'tokenise',
- source = ['apps/tokenise.c'],
+ target = 'glsl2',
+ source = [
+ 'main.cpp',
+ ]
)
env.Program(
- target = 'version',
- source = ['apps/version.c'],
+ target = 'glcpp',
+ source = ['glcpp/glcpp.c'],
)
-
-env.Program(
- target = 'process',
- source = ['apps/process.c'],
-)
-
-glsl_compile = env.Program(
- target = 'compile',
- source = ['apps/compile.c'],
-)
-
-if env['platform'] == common.default_platform:
- # Only export the GLSL compiler when building for the host platform
- Export('glsl_compile')
diff --git a/mesalib/src/glsl/apps/Makefile b/mesalib/src/glsl/apps/Makefile
deleted file mode 100644
index 39a0df7fe..000000000
--- a/mesalib/src/glsl/apps/Makefile
+++ /dev/null
@@ -1,43 +0,0 @@
-# src/glsl/apps/Makefile
-
-TOP = ../../..
-
-include $(TOP)/configs/current
-
-LIBS = \
- $(TOP)/src/glsl/pp/libglslpp.a \
- $(TOP)/src/glsl/cl/libglslcl.a
-
-SOURCES = \
- compile.c \
- process.c \
- purify.c \
- tokenise.c \
- version.c
-
-APPS = $(SOURCES:%.c=%)
-
-INCLUDES = -I.
-
-
-##### RULES #####
-
-.SUFFIXES:
-.SUFFIXES: .c
-
-.c:
- $(APP_CC) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $< $(LIBS) -o $@
-
-.c.o:
- $(APP_CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
-
-
-##### TARGETS #####
-
-default: $(APPS)
-
-install:
-
-clean:
- -rm -f $(APPS)
- -rm -f *.o
diff --git a/mesalib/src/glsl/apps/compile.c b/mesalib/src/glsl/apps/compile.c
deleted file mode 100644
index 21c2b7617..000000000
--- a/mesalib/src/glsl/apps/compile.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include "../pp/sl_pp_public.h"
-#include "../cl/sl_cl_parse.h"
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" compile fragment|vertex <source> <output>\n");
-}
-
-int
-main(int argc,
- char *argv[])
-{
- FILE *in;
- long size;
- char *inbuf;
- struct sl_pp_purify_options options;
- char errmsg[100] = "";
- struct sl_pp_context *context;
- unsigned int version;
- FILE *out;
- unsigned char *outbytes;
- unsigned int cboutbytes;
- unsigned int shader_type;
-
- if (argc != 4) {
- usage();
- return 1;
- }
-
- if (!strcmp(argv[1], "fragment")) {
- shader_type = 1;
- } else if (!strcmp(argv[1], "vertex")) {
- shader_type = 2;
- } else {
- usage();
- return 1;
- }
-
- in = fopen(argv[2], "rb");
- if (!in) {
- printf("Could not open `%s' for read.\n", argv[2]);
- usage();
- return 1;
- }
-
- fseek(in, 0, SEEK_END);
- size = ftell(in);
- assert(size != -1);
- fseek(in, 0, SEEK_SET);
-
- out = fopen(argv[3], "w");
- if (!out) {
- fclose(in);
- printf("Could not open `%s' for write.\n", argv[3]);
- usage();
- return 1;
- }
-
- inbuf = malloc(size + 1);
- if (!inbuf) {
- fprintf(out, "$OOMERROR\n");
-
- fclose(out);
- fclose(in);
- printf("Out of memory.\n");
- return 0;
- }
-
- if (fread(inbuf, 1, size, in) != size) {
- fprintf(out, "$READERROR\n");
-
- free(inbuf);
- fclose(out);
- fclose(in);
- printf("Could not read from `%s'.\n", argv[2]);
- return 0;
- }
- inbuf[size] = '\0';
-
- fclose(in);
-
- memset(&options, 0, sizeof(options));
-
- context = sl_pp_context_create(inbuf, &options);
- if (!context) {
- fprintf(out, "$CONTEXERROR\n");
-
- free(inbuf);
- fclose(out);
- printf("Could not create parse context.\n");
- return 0;
- }
-
- if (sl_pp_version(context, &version)) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- printf("Error: %s\n", sl_pp_context_error_message(context));
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return 0;
- }
-
- if (sl_pp_context_add_extension(context, "GL_ARB_draw_buffers") ||
- sl_pp_context_add_extension(context, "GL_ARB_texture_rectangle")) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- printf("Error: %s\n", sl_pp_context_error_message(context));
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return 0;
- }
-
- if (sl_cl_compile(context, shader_type, 1, &outbytes, &cboutbytes, errmsg, sizeof(errmsg)) == 0) {
- unsigned int i;
- unsigned int line = 0;
-
- fprintf(out, "\n/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */");
- fprintf(out, "\n/* %s */", argv[2]);
- fprintf(out, "\n\n");
-
- for (i = 0; i < cboutbytes; i++) {
- unsigned int a;
-
- if (outbytes[i] < 10) {
- a = 1;
- } else if (outbytes[i] < 100) {
- a = 2;
- } else {
- a = 3;
- }
- if (i < cboutbytes - 1) {
- a++;
- }
- if (line + a >= 100) {
- fprintf (out, "\n");
- line = 0;
- }
- line += a;
- fprintf (out, "%u", outbytes[i]);
- if (i < cboutbytes - 1) {
- fprintf (out, ",");
- }
- }
- fprintf (out, "\n");
- free(outbytes);
- } else {
- fprintf(out, "$SYNTAXERROR: `%s'\n", errmsg);
-
- printf("Error: %s\n", errmsg);
- }
-
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return 0;
-}
diff --git a/mesalib/src/glsl/apps/process.c b/mesalib/src/glsl/apps/process.c
deleted file mode 100644
index c8a1a1868..000000000
--- a/mesalib/src/glsl/apps/process.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include "../pp/sl_pp_public.h"
-
-
-int
-main(int argc,
- char *argv[])
-{
- FILE *in;
- long size;
- char *inbuf;
- struct sl_pp_purify_options options;
- struct sl_pp_context *context;
- unsigned int version;
- struct sl_pp_token_info *outtokens;
- FILE *out;
- unsigned int i;
-
- if (argc != 3) {
- printf("Usage: process infile outfile\n");
- return 1;
- }
-
- in = fopen(argv[1], "rb");
- if (!in) {
- return 1;
- }
-
- fseek(in, 0, SEEK_END);
- size = ftell(in);
- assert(size != -1);
- fseek(in, 0, SEEK_SET);
-
- out = fopen(argv[2], "wb");
- if (!out) {
- fclose(in);
- return 1;
- }
-
- inbuf = malloc(size + 1);
- if (!inbuf) {
- fprintf(out, "$OOMERROR\n");
-
- fclose(out);
- fclose(in);
- return 1;
- }
-
- if (fread(inbuf, 1, size, in) != size) {
- fprintf(out, "$READERROR\n");
-
- free(inbuf);
- fclose(out);
- fclose(in);
- return 1;
- }
- inbuf[size] = '\0';
-
- fclose(in);
-
- memset(&options, 0, sizeof(options));
-
- context = sl_pp_context_create(inbuf, &options);
- if (!context) {
- fprintf(out, "$CONTEXERROR\n");
-
- free(inbuf);
- fclose(out);
- return 1;
- }
-
- if (sl_pp_version(context, &version)) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return -1;
- }
-
- if (sl_pp_context_add_extension(context, "GL_ARB_draw_buffers") ||
- sl_pp_context_add_extension(context, "GL_ARB_texture_rectangle")) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- printf("Error: %s\n", sl_pp_context_error_message(context));
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return 0;
- }
-
- if (sl_pp_context_add_predefined(context, "__GLSL_PP_PREDEFINED_MACRO_TEST", "1")) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- printf("Error: %s\n", sl_pp_context_error_message(context));
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return 0;
- }
-
- if (sl_pp_process(context, &outtokens)) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return -1;
- }
-
- free(inbuf);
-
- for (i = 0; outtokens[i].token != SL_PP_EOF; i++) {
- switch (outtokens[i].token) {
- case SL_PP_NEWLINE:
- fprintf(out, "\n");
- break;
-
- case SL_PP_COMMA:
- fprintf(out, ", ");
- break;
-
- case SL_PP_SEMICOLON:
- fprintf(out, "; ");
- break;
-
- case SL_PP_LBRACE:
- fprintf(out, "{ ");
- break;
-
- case SL_PP_RBRACE:
- fprintf(out, "} ");
- break;
-
- case SL_PP_LPAREN:
- fprintf(out, "( ");
- break;
-
- case SL_PP_RPAREN:
- fprintf(out, ") ");
- break;
-
- case SL_PP_LBRACKET:
- fprintf(out, "[ ");
- break;
-
- case SL_PP_RBRACKET:
- fprintf(out, "] ");
- break;
-
- case SL_PP_DOT:
- fprintf(out, ". ");
- break;
-
- case SL_PP_INCREMENT:
- fprintf(out, "++ ");
- break;
-
- case SL_PP_ADDASSIGN:
- fprintf(out, "+= ");
- break;
-
- case SL_PP_PLUS:
- fprintf(out, "+ ");
- break;
-
- case SL_PP_DECREMENT:
- fprintf(out, "-- ");
- break;
-
- case SL_PP_SUBASSIGN:
- fprintf(out, "-= ");
- break;
-
- case SL_PP_MINUS:
- fprintf(out, "- ");
- break;
-
- case SL_PP_BITNOT:
- fprintf(out, "~ ");
- break;
-
- case SL_PP_NOTEQUAL:
- fprintf(out, "!= ");
- break;
-
- case SL_PP_NOT:
- fprintf(out, "! ");
- break;
-
- case SL_PP_MULASSIGN:
- fprintf(out, "*= ");
- break;
-
- case SL_PP_STAR:
- fprintf(out, "* ");
- break;
-
- case SL_PP_DIVASSIGN:
- fprintf(out, "/= ");
- break;
-
- case SL_PP_SLASH:
- fprintf(out, "/ ");
- break;
-
- case SL_PP_MODASSIGN:
- fprintf(out, "%%= ");
- break;
-
- case SL_PP_MODULO:
- fprintf(out, "%% ");
- break;
-
- case SL_PP_LSHIFTASSIGN:
- fprintf(out, "<<= ");
- break;
-
- case SL_PP_LSHIFT:
- fprintf(out, "<< ");
- break;
-
- case SL_PP_LESSEQUAL:
- fprintf(out, "<= ");
- break;
-
- case SL_PP_LESS:
- fprintf(out, "< ");
- break;
-
- case SL_PP_RSHIFTASSIGN:
- fprintf(out, ">>= ");
- break;
-
- case SL_PP_RSHIFT:
- fprintf(out, ">> ");
- break;
-
- case SL_PP_GREATEREQUAL:
- fprintf(out, ">= ");
- break;
-
- case SL_PP_GREATER:
- fprintf(out, "> ");
- break;
-
- case SL_PP_EQUAL:
- fprintf(out, "== ");
- break;
-
- case SL_PP_ASSIGN:
- fprintf(out, "= ");
- break;
-
- case SL_PP_AND:
- fprintf(out, "&& ");
- break;
-
- case SL_PP_BITANDASSIGN:
- fprintf(out, "&= ");
- break;
-
- case SL_PP_BITAND:
- fprintf(out, "& ");
- break;
-
- case SL_PP_XOR:
- fprintf(out, "^^ ");
- break;
-
- case SL_PP_BITXORASSIGN:
- fprintf(out, "^= ");
- break;
-
- case SL_PP_BITXOR:
- fprintf(out, "^ ");
- break;
-
- case SL_PP_OR:
- fprintf(out, "|| ");
- break;
-
- case SL_PP_BITORASSIGN:
- fprintf(out, "|= ");
- break;
-
- case SL_PP_BITOR:
- fprintf(out, "| ");
- break;
-
- case SL_PP_QUESTION:
- fprintf(out, "? ");
- break;
-
- case SL_PP_COLON:
- fprintf(out, ": ");
- break;
-
- case SL_PP_IDENTIFIER:
- fprintf(out, "%s ", sl_pp_context_cstr(context, outtokens[i].data.identifier));
- break;
-
- case SL_PP_UINT:
- fprintf(out, "%s ", sl_pp_context_cstr(context, outtokens[i].data._uint));
- break;
-
- case SL_PP_FLOAT:
- fprintf(out, "%s ", sl_pp_context_cstr(context, outtokens[i].data._float));
- break;
-
- case SL_PP_OTHER:
- fprintf(out, "%c", outtokens[i].data.other);
- break;
-
- case SL_PP_PRAGMA_OPTIMIZE:
- fprintf(out, "#pragma optimize(%s)", outtokens[i].data.pragma ? "on" : "off");
- break;
-
- case SL_PP_PRAGMA_DEBUG:
- fprintf(out, "#pragma debug(%s)", outtokens[i].data.pragma ? "on" : "off");
- break;
-
- case SL_PP_EXTENSION_REQUIRE:
- fprintf(out, "#extension %s : require", sl_pp_context_cstr(context, outtokens[i].data.extension));
- break;
-
- case SL_PP_EXTENSION_ENABLE:
- fprintf(out, "#extension %s : enable", sl_pp_context_cstr(context, outtokens[i].data.extension));
- break;
-
- case SL_PP_EXTENSION_WARN:
- fprintf(out, "#extension %s : warn", sl_pp_context_cstr(context, outtokens[i].data.extension));
- break;
-
- case SL_PP_EXTENSION_DISABLE:
- fprintf(out, "#extension %s : disable", sl_pp_context_cstr(context, outtokens[i].data.extension));
- break;
-
- case SL_PP_LINE:
- fprintf(out, "#line %u %u", outtokens[i].data.line.lineno, outtokens[i].data.line.fileno);
- break;
-
- default:
- assert(0);
- }
- }
-
- sl_pp_context_destroy(context);
- free(outtokens);
- fclose(out);
-
- return 0;
-}
diff --git a/mesalib/src/glsl/apps/purify.c b/mesalib/src/glsl/apps/purify.c
deleted file mode 100644
index 5ab6bae96..000000000
--- a/mesalib/src/glsl/apps/purify.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "../pp/sl_pp_public.h"
-
-
-int
-main(int argc,
- char *argv[])
-{
- FILE *in;
- long size;
- char *inbuf;
- struct sl_pp_purify_options options;
- char *outbuf;
- char errmsg[100] = "";
- unsigned int errline = 0;
- FILE *out;
-
- if (argc != 3) {
- printf("Usage: purify infile outfile\n");
- return 1;
- }
-
- in = fopen(argv[1], "rb");
- if (!in) {
- return 1;
- }
-
- fseek(in, 0, SEEK_END);
- size = ftell(in);
- assert(size != -1);
- fseek(in, 0, SEEK_SET);
-
- out = fopen(argv[2], "wb");
- if (!out) {
- fclose(in);
- return 1;
- }
-
- inbuf = malloc(size + 1);
- if (!inbuf) {
- fprintf(out, "$OOMERROR\n");
-
- fclose(out);
- fclose(in);
- return 1;
- }
-
- if (fread(inbuf, 1, size, in) != size) {
- fprintf(out, "$READERROR\n");
-
- free(inbuf);
- fclose(out);
- fclose(in);
- return 1;
- }
- inbuf[size] = '\0';
-
- fclose(in);
-
- memset(&options, 0, sizeof(options));
-
- if (sl_pp_purify(inbuf, &options, &outbuf, errmsg, sizeof(errmsg), &errline)) {
- fprintf(out, "$PURIFYERROR %u: %s\n", errline, errmsg);
-
- free(inbuf);
- fclose(out);
- return 1;
- }
-
- free(inbuf);
-
- fwrite(outbuf, 1, strlen(outbuf), out);
-
- free(outbuf);
- fclose(out);
-
- return 0;
-}
diff --git a/mesalib/src/glsl/apps/tokenise.c b/mesalib/src/glsl/apps/tokenise.c
deleted file mode 100644
index b4c6d6093..000000000
--- a/mesalib/src/glsl/apps/tokenise.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include "../pp/sl_pp_public.h"
-
-
-int
-main(int argc,
- char *argv[])
-{
- FILE *in;
- long size;
- char *inbuf;
- struct sl_pp_purify_options options;
- struct sl_pp_context *context;
- struct sl_pp_token_info *tokens;
- FILE *out;
- unsigned int i;
-
- if (argc != 3) {
- printf("Usage: tokenize infile outfile\n");
- return 1;
- }
-
- in = fopen(argv[1], "rb");
- if (!in) {
- return 1;
- }
-
- fseek(in, 0, SEEK_END);
- size = ftell(in);
- assert(size != -1);
- fseek(in, 0, SEEK_SET);
-
- out = fopen(argv[2], "wb");
- if (!out) {
- fclose(in);
- return 1;
- }
-
- inbuf = malloc(size + 1);
- if (!inbuf) {
- fprintf(out, "$OOMERROR\n");
-
- fclose(out);
- fclose(in);
- return 1;
- }
-
- if (fread(inbuf, 1, size, in) != size) {
- fprintf(out, "$READERROR\n");
-
- free(inbuf);
- fclose(out);
- fclose(in);
- return 1;
- }
- inbuf[size] = '\0';
-
- fclose(in);
-
- memset(&options, 0, sizeof(options));
-
- context = sl_pp_context_create(inbuf, &options);
- if (!context) {
- fprintf(out, "$CONTEXERROR\n");
-
- free(inbuf);
- fclose(out);
- return 1;
- }
-
- if (sl_pp_tokenise(context, &tokens)) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return 1;
- }
-
- free(inbuf);
-
- for (i = 0; tokens[i].token != SL_PP_EOF; i++) {
- switch (tokens[i].token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_NEWLINE:
- fprintf(out, "\n");
- break;
-
- case SL_PP_HASH:
- fprintf(out, "# ");
- break;
-
- case SL_PP_COMMA:
- fprintf(out, ", ");
- break;
-
- case SL_PP_SEMICOLON:
- fprintf(out, "; ");
- break;
-
- case SL_PP_LBRACE:
- fprintf(out, "{ ");
- break;
-
- case SL_PP_RBRACE:
- fprintf(out, "} ");
- break;
-
- case SL_PP_LPAREN:
- fprintf(out, "( ");
- break;
-
- case SL_PP_RPAREN:
- fprintf(out, ") ");
- break;
-
- case SL_PP_LBRACKET:
- fprintf(out, "[ ");
- break;
-
- case SL_PP_RBRACKET:
- fprintf(out, "] ");
- break;
-
- case SL_PP_DOT:
- fprintf(out, ". ");
- break;
-
- case SL_PP_INCREMENT:
- fprintf(out, "++ ");
- break;
-
- case SL_PP_ADDASSIGN:
- fprintf(out, "+= ");
- break;
-
- case SL_PP_PLUS:
- fprintf(out, "+ ");
- break;
-
- case SL_PP_DECREMENT:
- fprintf(out, "-- ");
- break;
-
- case SL_PP_SUBASSIGN:
- fprintf(out, "-= ");
- break;
-
- case SL_PP_MINUS:
- fprintf(out, "- ");
- break;
-
- case SL_PP_BITNOT:
- fprintf(out, "~ ");
- break;
-
- case SL_PP_NOTEQUAL:
- fprintf(out, "!= ");
- break;
-
- case SL_PP_NOT:
- fprintf(out, "! ");
- break;
-
- case SL_PP_MULASSIGN:
- fprintf(out, "*= ");
- break;
-
- case SL_PP_STAR:
- fprintf(out, "* ");
- break;
-
- case SL_PP_DIVASSIGN:
- fprintf(out, "/= ");
- break;
-
- case SL_PP_SLASH:
- fprintf(out, "/ ");
- break;
-
- case SL_PP_MODASSIGN:
- fprintf(out, "%%= ");
- break;
-
- case SL_PP_MODULO:
- fprintf(out, "%% ");
- break;
-
- case SL_PP_LSHIFTASSIGN:
- fprintf(out, "<<= ");
- break;
-
- case SL_PP_LSHIFT:
- fprintf(out, "<< ");
- break;
-
- case SL_PP_LESSEQUAL:
- fprintf(out, "<= ");
- break;
-
- case SL_PP_LESS:
- fprintf(out, "< ");
- break;
-
- case SL_PP_RSHIFTASSIGN:
- fprintf(out, ">>= ");
- break;
-
- case SL_PP_RSHIFT:
- fprintf(out, ">> ");
- break;
-
- case SL_PP_GREATEREQUAL:
- fprintf(out, ">= ");
- break;
-
- case SL_PP_GREATER:
- fprintf(out, "> ");
- break;
-
- case SL_PP_EQUAL:
- fprintf(out, "== ");
- break;
-
- case SL_PP_ASSIGN:
- fprintf(out, "= ");
- break;
-
- case SL_PP_AND:
- fprintf(out, "&& ");
- break;
-
- case SL_PP_BITANDASSIGN:
- fprintf(out, "&= ");
- break;
-
- case SL_PP_BITAND:
- fprintf(out, "& ");
- break;
-
- case SL_PP_XOR:
- fprintf(out, "^^ ");
- break;
-
- case SL_PP_BITXORASSIGN:
- fprintf(out, "^= ");
- break;
-
- case SL_PP_BITXOR:
- fprintf(out, "^ ");
- break;
-
- case SL_PP_OR:
- fprintf(out, "|| ");
- break;
-
- case SL_PP_BITORASSIGN:
- fprintf(out, "|= ");
- break;
-
- case SL_PP_BITOR:
- fprintf(out, "| ");
- break;
-
- case SL_PP_QUESTION:
- fprintf(out, "? ");
- break;
-
- case SL_PP_COLON:
- fprintf(out, ": ");
- break;
-
- case SL_PP_IDENTIFIER:
- fprintf(out, "%s ", sl_pp_context_cstr(context, tokens[i].data.identifier));
- break;
-
- case SL_PP_UINT:
- fprintf(out, "(%s) ", sl_pp_context_cstr(context, tokens[i].data._uint));
- break;
-
- case SL_PP_FLOAT:
- fprintf(out, "(%s) ", sl_pp_context_cstr(context, tokens[i].data._float));
- break;
-
- case SL_PP_OTHER:
- if (tokens[i].data.other == '\'') {
- fprintf(out, "'\\'' ");
- } else {
- fprintf(out, "'%c' ", tokens[i].data.other);
- }
- break;
-
- default:
- assert(0);
- }
- }
-
- sl_pp_context_destroy(context);
- free(tokens);
- fclose(out);
-
- return 0;
-}
diff --git a/mesalib/src/glsl/apps/version.c b/mesalib/src/glsl/apps/version.c
deleted file mode 100644
index 9820ad94d..000000000
--- a/mesalib/src/glsl/apps/version.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include "../pp/sl_pp_public.h"
-
-
-int
-main(int argc,
- char *argv[])
-{
- FILE *in;
- long size;
- char *inbuf;
- struct sl_pp_purify_options options;
- struct sl_pp_context *context;
- unsigned int version;
- FILE *out;
-
- if (argc != 3) {
- printf("Usage: version infile outfile\n");
- return 1;
- }
-
- in = fopen(argv[1], "rb");
- if (!in) {
- return 1;
- }
-
- fseek(in, 0, SEEK_END);
- size = ftell(in);
- assert(size != -1);
- fseek(in, 0, SEEK_SET);
-
- out = fopen(argv[2], "wb");
- if (!out) {
- fclose(in);
- return 1;
- }
-
- inbuf = malloc(size + 1);
- if (!inbuf) {
- fprintf(out, "$OOMERROR\n");
-
- fclose(out);
- fclose(in);
- return 1;
- }
-
- if (fread(inbuf, 1, size, in) != size) {
- fprintf(out, "$READERROR\n");
-
- free(inbuf);
- fclose(out);
- fclose(in);
- return 1;
- }
- inbuf[size] = '\0';
-
- fclose(in);
-
- memset(&options, 0, sizeof(options));
-
- context = sl_pp_context_create(inbuf, &options);
- if (!context) {
- fprintf(out, "$CONTEXERROR\n");
-
- free(inbuf);
- fclose(out);
- return 1;
- }
-
- if (sl_pp_version(context, &version)) {
- fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
-
- sl_pp_context_destroy(context);
- free(inbuf);
- fclose(out);
- return -1;
- }
-
- sl_pp_context_destroy(context);
- free(inbuf);
-
- fprintf(out, "%u\n", version);
-
- fclose(out);
-
- return 0;
-}
diff --git a/mesalib/src/glsl/ast.h b/mesalib/src/glsl/ast.h
new file mode 100644
index 000000000..ba30f65df
--- /dev/null
+++ b/mesalib/src/glsl/ast.h
@@ -0,0 +1,702 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef AST_H
+#define AST_H
+
+#include "list.h"
+#include "glsl_parser_extras.h"
+
+struct _mesa_glsl_parse_state;
+
+struct YYLTYPE;
+
+/**
+ * \defgroup AST Abstract syntax tree node definitions
+ *
+ * An abstract syntax tree is generated by the parser. This is a fairly
+ * direct representation of the gramma derivation for the source program.
+ * No symantic checking is done during the generation of the AST. Only
+ * syntactic checking is done. Symantic checking is performed by a later
+ * stage that converts the AST to a more generic intermediate representation.
+ *
+ *@{
+ */
+/**
+ * Base class of all abstract syntax tree nodes
+ */
+class ast_node {
+public:
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'ctx' (or any of its ancestors). */
+ static void* operator new(size_t size, void *ctx)
+ {
+ void *node;
+
+ node = talloc_zero_size(ctx, size);
+ assert(node != NULL);
+
+ return node;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. */
+ static void operator delete(void *table, void *ctx)
+ {
+ talloc_free(table);
+ }
+ static void operator delete(void *table)
+ {
+ talloc_free(table);
+ }
+
+ /**
+ * Print an AST node in something approximating the original GLSL code
+ */
+ virtual void print(void) const;
+
+ /**
+ * Convert the AST node to the high-level intermediate representation
+ */
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ /**
+ * Retrieve the source location of an AST node
+ *
+ * This function is primarily used to get the source position of an AST node
+ * into a form that can be passed to \c _mesa_glsl_error.
+ *
+ * \sa _mesa_glsl_error, ast_node::set_location
+ */
+ struct YYLTYPE get_location(void) const
+ {
+ struct YYLTYPE locp;
+
+ locp.source = this->location.source;
+ locp.first_line = this->location.line;
+ locp.first_column = this->location.column;
+ locp.last_line = locp.first_line;
+ locp.last_column = locp.first_column;
+
+ return locp;
+ }
+
+ /**
+ * Set the source location of an AST node from a parser location
+ *
+ * \sa ast_node::get_location
+ */
+ void set_location(const struct YYLTYPE &locp)
+ {
+ this->location.source = locp.source;
+ this->location.line = locp.first_line;
+ this->location.column = locp.first_column;
+ }
+
+ /**
+ * Source location of the AST node.
+ */
+ struct {
+ unsigned source; /**< GLSL source number. */
+ unsigned line; /**< Line number within the source string. */
+ unsigned column; /**< Column in the line. */
+ } location;
+
+ exec_node link;
+
+protected:
+ /**
+ * The only constructor is protected so that only derived class objects can
+ * be created.
+ */
+ ast_node(void);
+};
+
+
+/**
+ * Operators for AST expression nodes.
+ */
+enum ast_operators {
+ ast_assign,
+ ast_plus, /**< Unary + operator. */
+ ast_neg,
+ ast_add,
+ ast_sub,
+ ast_mul,
+ ast_div,
+ ast_mod,
+ ast_lshift,
+ ast_rshift,
+ ast_less,
+ ast_greater,
+ ast_lequal,
+ ast_gequal,
+ ast_equal,
+ ast_nequal,
+ ast_bit_and,
+ ast_bit_xor,
+ ast_bit_or,
+ ast_bit_not,
+ ast_logic_and,
+ ast_logic_xor,
+ ast_logic_or,
+ ast_logic_not,
+
+ ast_mul_assign,
+ ast_div_assign,
+ ast_mod_assign,
+ ast_add_assign,
+ ast_sub_assign,
+ ast_ls_assign,
+ ast_rs_assign,
+ ast_and_assign,
+ ast_xor_assign,
+ ast_or_assign,
+
+ ast_conditional,
+
+ ast_pre_inc,
+ ast_pre_dec,
+ ast_post_inc,
+ ast_post_dec,
+ ast_field_selection,
+ ast_array_index,
+
+ ast_function_call,
+
+ ast_identifier,
+ ast_int_constant,
+ ast_uint_constant,
+ ast_float_constant,
+ ast_bool_constant,
+
+ ast_sequence
+};
+
+/**
+ * Representation of any sort of expression.
+ */
+class ast_expression : public ast_node {
+public:
+ ast_expression(int oper, ast_expression *,
+ ast_expression *, ast_expression *);
+
+ ast_expression(const char *identifier) :
+ oper(ast_identifier)
+ {
+ subexpressions[0] = NULL;
+ subexpressions[1] = NULL;
+ subexpressions[2] = NULL;
+ primary_expression.identifier = (char *) identifier;
+ }
+
+ static const char *operator_string(enum ast_operators op);
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ virtual void print(void) const;
+
+ enum ast_operators oper;
+
+ ast_expression *subexpressions[3];
+
+ union {
+ char *identifier;
+ int int_constant;
+ float float_constant;
+ unsigned uint_constant;
+ int bool_constant;
+ } primary_expression;
+
+
+ /**
+ * List of expressions for an \c ast_sequence or parameters for an
+ * \c ast_function_call
+ */
+ exec_list expressions;
+};
+
+class ast_expression_bin : public ast_expression {
+public:
+ ast_expression_bin(int oper, ast_expression *, ast_expression *);
+
+ virtual void print(void) const;
+};
+
+/**
+ * Subclass of expressions for function calls
+ */
+class ast_function_expression : public ast_expression {
+public:
+ ast_function_expression(ast_expression *callee)
+ : ast_expression(ast_function_call, callee,
+ NULL, NULL),
+ cons(false)
+ {
+ /* empty */
+ }
+
+ ast_function_expression(class ast_type_specifier *type)
+ : ast_expression(ast_function_call, (ast_expression *) type,
+ NULL, NULL),
+ cons(true)
+ {
+ /* empty */
+ }
+
+ bool is_constructor() const
+ {
+ return cons;
+ }
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+private:
+ /**
+ * Is this function call actually a constructor?
+ */
+ bool cons;
+};
+
+
+/**
+ * Number of possible operators for an ast_expression
+ *
+ * This is done as a define instead of as an additional value in the enum so
+ * that the compiler won't generate spurious messages like "warning:
+ * enumeration value ‘ast_num_operators’ not handled in switch"
+ */
+#define AST_NUM_OPERATORS (ast_sequence + 1)
+
+
+class ast_compound_statement : public ast_node {
+public:
+ ast_compound_statement(int new_scope, ast_node *statements);
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ int new_scope;
+ exec_list statements;
+};
+
+class ast_declaration : public ast_node {
+public:
+ ast_declaration(char *identifier, int is_array, ast_expression *array_size,
+ ast_expression *initializer);
+ virtual void print(void) const;
+
+ char *identifier;
+
+ int is_array;
+ ast_expression *array_size;
+
+ ast_expression *initializer;
+};
+
+
+enum {
+ ast_precision_high = 0, /**< Default precision. */
+ ast_precision_medium,
+ ast_precision_low
+};
+
+struct ast_type_qualifier {
+ unsigned invariant:1;
+ unsigned constant:1;
+ unsigned attribute:1;
+ unsigned varying:1;
+ unsigned in:1;
+ unsigned out:1;
+ unsigned centroid:1;
+ unsigned uniform:1;
+ unsigned smooth:1;
+ unsigned flat:1;
+ unsigned noperspective:1;
+
+ /** \name Layout qualifiers for GL_ARB_fragment_coord_conventions */
+ /*@{*/
+ unsigned origin_upper_left:1;
+ unsigned pixel_center_integer:1;
+ /*@}*/
+};
+
+class ast_struct_specifier : public ast_node {
+public:
+ ast_struct_specifier(char *identifier, ast_node *declarator_list);
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ char *name;
+ exec_list declarations;
+};
+
+
+enum ast_types {
+ ast_void,
+ ast_float,
+ ast_int,
+ ast_uint,
+ ast_bool,
+ ast_vec2,
+ ast_vec3,
+ ast_vec4,
+ ast_bvec2,
+ ast_bvec3,
+ ast_bvec4,
+ ast_ivec2,
+ ast_ivec3,
+ ast_ivec4,
+ ast_uvec2,
+ ast_uvec3,
+ ast_uvec4,
+ ast_mat2,
+ ast_mat2x3,
+ ast_mat2x4,
+ ast_mat3x2,
+ ast_mat3,
+ ast_mat3x4,
+ ast_mat4x2,
+ ast_mat4x3,
+ ast_mat4,
+ ast_sampler1d,
+ ast_sampler2d,
+ ast_sampler2drect,
+ ast_sampler3d,
+ ast_samplercube,
+ ast_sampler1dshadow,
+ ast_sampler2dshadow,
+ ast_sampler2drectshadow,
+ ast_samplercubeshadow,
+ ast_sampler1darray,
+ ast_sampler2darray,
+ ast_sampler1darrayshadow,
+ ast_sampler2darrayshadow,
+ ast_isampler1d,
+ ast_isampler2d,
+ ast_isampler3d,
+ ast_isamplercube,
+ ast_isampler1darray,
+ ast_isampler2darray,
+ ast_usampler1d,
+ ast_usampler2d,
+ ast_usampler3d,
+ ast_usamplercube,
+ ast_usampler1darray,
+ ast_usampler2darray,
+
+ ast_struct,
+ ast_type_name
+};
+
+
+class ast_type_specifier : public ast_node {
+public:
+ ast_type_specifier(int specifier);
+
+ /** Construct a type specifier from a type name */
+ ast_type_specifier(const char *name)
+ : type_specifier(ast_type_name), type_name(name), structure(NULL),
+ is_array(false), array_size(NULL), precision(ast_precision_high)
+ {
+ /* empty */
+ }
+
+ /** Construct a type specifier from a structure definition */
+ ast_type_specifier(ast_struct_specifier *s)
+ : type_specifier(ast_struct), type_name(s->name), structure(s),
+ is_array(false), array_size(NULL), precision(ast_precision_high)
+ {
+ /* empty */
+ }
+
+ const struct glsl_type *glsl_type(const char **name,
+ struct _mesa_glsl_parse_state *state)
+ const;
+
+ virtual void print(void) const;
+
+ ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
+
+ enum ast_types type_specifier;
+
+ const char *type_name;
+ ast_struct_specifier *structure;
+
+ int is_array;
+ ast_expression *array_size;
+
+ unsigned precision:2;
+};
+
+
+class ast_fully_specified_type : public ast_node {
+public:
+ virtual void print(void) const;
+ bool has_qualifiers() const;
+
+ ast_type_qualifier qualifier;
+ ast_type_specifier *specifier;
+};
+
+
+class ast_declarator_list : public ast_node {
+public:
+ ast_declarator_list(ast_fully_specified_type *);
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ ast_fully_specified_type *type;
+ exec_list declarations;
+
+ /**
+ * Special flag for vertex shader "invariant" declarations.
+ *
+ * Vertex shaders can contain "invariant" variable redeclarations that do
+ * not include a type. For example, "invariant gl_Position;". This flag
+ * is used to note these cases when no type is specified.
+ */
+ int invariant;
+};
+
+
+class ast_parameter_declarator : public ast_node {
+public:
+ ast_parameter_declarator()
+ {
+ this->identifier = NULL;
+ this->is_array = false;
+ this->array_size = 0;
+ }
+
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ ast_fully_specified_type *type;
+ char *identifier;
+ int is_array;
+ ast_expression *array_size;
+
+ static void parameters_to_hir(exec_list *ast_parameters,
+ bool formal, exec_list *ir_parameters,
+ struct _mesa_glsl_parse_state *state);
+
+private:
+ /** Is this parameter declaration part of a formal parameter list? */
+ bool formal_parameter;
+
+ /**
+ * Is this parameter 'void' type?
+ *
+ * This field is set by \c ::hir.
+ */
+ bool is_void;
+};
+
+
+class ast_function : public ast_node {
+public:
+ ast_function(void);
+
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ ast_fully_specified_type *return_type;
+ char *identifier;
+
+ exec_list parameters;
+
+private:
+ /**
+ * Is this prototype part of the function definition?
+ *
+ * Used by ast_function_definition::hir to process the parameters, etc.
+ * of the function.
+ *
+ * \sa ::hir
+ */
+ bool is_definition;
+
+ /**
+ * Function signature corresponding to this function prototype instance
+ *
+ * Used by ast_function_definition::hir to process the parameters, etc.
+ * of the function.
+ *
+ * \sa ::hir
+ */
+ class ir_function_signature *signature;
+
+ friend class ast_function_definition;
+};
+
+
+class ast_declaration_statement : public ast_node {
+public:
+ ast_declaration_statement(void);
+
+ enum {
+ ast_function,
+ ast_declaration,
+ ast_precision
+ } mode;
+
+ union {
+ class ast_function *function;
+ ast_declarator_list *declarator;
+ ast_type_specifier *type;
+ ast_node *node;
+ } declaration;
+};
+
+
+class ast_expression_statement : public ast_node {
+public:
+ ast_expression_statement(ast_expression *);
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ ast_expression *expression;
+};
+
+
+class ast_case_label : public ast_node {
+public:
+
+ /**
+ * An expression of NULL means 'default'.
+ */
+ ast_expression *expression;
+};
+
+class ast_selection_statement : public ast_node {
+public:
+ ast_selection_statement(ast_expression *condition,
+ ast_node *then_statement,
+ ast_node *else_statement);
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ ast_expression *condition;
+ ast_node *then_statement;
+ ast_node *else_statement;
+};
+
+
+class ast_switch_statement : public ast_node {
+public:
+ ast_expression *expression;
+ exec_list statements;
+};
+
+class ast_iteration_statement : public ast_node {
+public:
+ ast_iteration_statement(int mode, ast_node *init, ast_node *condition,
+ ast_expression *rest_expression, ast_node *body);
+
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
+
+ enum ast_iteration_modes {
+ ast_for,
+ ast_while,
+ ast_do_while
+ } mode;
+
+
+ ast_node *init_statement;
+ ast_node *condition;
+ ast_expression *rest_expression;
+
+ ast_node *body;
+
+private:
+ /**
+ * Generate IR from the condition of a loop
+ *
+ * This is factored out of ::hir because some loops have the condition
+ * test at the top (for and while), and others have it at the end (do-while).
+ */
+ void condition_to_hir(class ir_loop *, struct _mesa_glsl_parse_state *);
+};
+
+
+class ast_jump_statement : public ast_node {
+public:
+ ast_jump_statement(int mode, ast_expression *return_value);
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ enum ast_jump_modes {
+ ast_continue,
+ ast_break,
+ ast_return,
+ ast_discard
+ } mode;
+
+ ast_expression *opt_return_value;
+};
+
+
+class ast_function_definition : public ast_node {
+public:
+ virtual void print(void) const;
+
+ virtual ir_rvalue *hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+ ast_function *prototype;
+ ast_compound_statement *body;
+};
+/*@}*/
+
+extern void
+_mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state);
+
+extern ir_rvalue *
+_mesa_ast_field_selection_to_hir(const ast_expression *expr,
+ exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+#endif /* AST_H */
diff --git a/mesalib/src/glsl/ast_expr.cpp b/mesalib/src/glsl/ast_expr.cpp
new file mode 100644
index 000000000..4e83decb9
--- /dev/null
+++ b/mesalib/src/glsl/ast_expr.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <cstdio>
+#include <cassert>
+#include "ast.h"
+
+const char *
+ast_expression::operator_string(enum ast_operators op)
+{
+ static const char *const operators[] = {
+ "=",
+ "+",
+ "-",
+ "+",
+ "-",
+ "*",
+ "/",
+ "%",
+ "<<",
+ ">>",
+ "<",
+ ">",
+ "<=",
+ ">=",
+ "==",
+ "!=",
+ "&",
+ "^",
+ "|",
+ "~",
+ "&&",
+ "^^",
+ "||",
+ "!",
+
+ "*=",
+ "/=",
+ "%=",
+ "+=",
+ "-=",
+ "<<=",
+ ">>=",
+ "&=",
+ "^=",
+ "|=",
+
+ "?:",
+
+ "++",
+ "--",
+ "++",
+ "--",
+ ".",
+ };
+
+ assert((unsigned int)op < sizeof(operators) / sizeof(operators[0]));
+
+ return operators[op];
+}
+
+
+ast_expression_bin::ast_expression_bin(int oper, ast_expression *ex0,
+ ast_expression *ex1) :
+ ast_expression(oper, ex0, ex1, NULL)
+{
+ assert((oper >= ast_plus) && (oper <= ast_logic_not));
+}
+
+
+void
+ast_expression_bin::print(void) const
+{
+ subexpressions[0]->print();
+ printf("%s ", operator_string(oper));
+ subexpressions[1]->print();
+}
diff --git a/mesalib/src/glsl/ast_function.cpp b/mesalib/src/glsl/ast_function.cpp
new file mode 100644
index 000000000..20448f5a9
--- /dev/null
+++ b/mesalib/src/glsl/ast_function.cpp
@@ -0,0 +1,1241 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glsl_symbol_table.h"
+#include "ast.h"
+#include "glsl_types.h"
+#include "ir.h"
+#include "main/core.h" /* for MIN2 */
+
+static ir_rvalue *
+convert_component(ir_rvalue *src, const glsl_type *desired_type);
+
+bool
+apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
+ struct _mesa_glsl_parse_state *state);
+
+static unsigned
+process_parameters(exec_list *instructions, exec_list *actual_parameters,
+ exec_list *parameters,
+ struct _mesa_glsl_parse_state *state)
+{
+ unsigned count = 0;
+
+ foreach_list (n, parameters) {
+ ast_node *const ast = exec_node_data(ast_node, n, link);
+ ir_rvalue *result = ast->hir(instructions, state);
+
+ ir_constant *const constant = result->constant_expression_value();
+ if (constant != NULL)
+ result = constant;
+
+ actual_parameters->push_tail(result);
+ count++;
+ }
+
+ return count;
+}
+
+
+/**
+ * Generate a source prototype for a function signature
+ *
+ * \param return_type Return type of the function. May be \c NULL.
+ * \param name Name of the function.
+ * \param parameters Parameter list for the function. This may be either a
+ * formal or actual parameter list. Only the type is used.
+ *
+ * \return
+ * A talloced string representing the prototype of the function.
+ */
+char *
+prototype_string(const glsl_type *return_type, const char *name,
+ exec_list *parameters)
+{
+ char *str = NULL;
+
+ if (return_type != NULL)
+ str = talloc_asprintf(str, "%s ", return_type->name);
+
+ str = talloc_asprintf_append(str, "%s(", name);
+
+ const char *comma = "";
+ foreach_list(node, parameters) {
+ const ir_instruction *const param = (ir_instruction *) node;
+
+ str = talloc_asprintf_append(str, "%s%s", comma, param->type->name);
+ comma = ", ";
+ }
+
+ str = talloc_strdup_append(str, ")");
+ return str;
+}
+
+
+static ir_rvalue *
+process_call(exec_list *instructions, ir_function *f,
+ YYLTYPE *loc, exec_list *actual_parameters,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+
+ ir_function_signature *sig = f->matching_signature(actual_parameters);
+
+ /* The instructions param will be used when the FINISHMEs below are done */
+ (void) instructions;
+
+ if (sig != NULL) {
+ /* Verify that 'out' and 'inout' actual parameters are lvalues. This
+ * isn't done in ir_function::matching_signature because that function
+ * cannot generate the necessary diagnostics.
+ */
+ exec_list_iterator actual_iter = actual_parameters->iterator();
+ exec_list_iterator formal_iter = sig->parameters.iterator();
+
+ while (actual_iter.has_next()) {
+ ir_rvalue *actual = (ir_rvalue *) actual_iter.get();
+ ir_variable *formal = (ir_variable *) formal_iter.get();
+
+ assert(actual != NULL);
+ assert(formal != NULL);
+
+ if ((formal->mode == ir_var_out)
+ || (formal->mode == ir_var_inout)) {
+ if (! actual->is_lvalue()) {
+ /* FINISHME: Log a better diagnostic here. There is no way
+ * FINISHME: to tell the user which parameter is invalid.
+ */
+ _mesa_glsl_error(loc, state, "`%s' parameter is not lvalue",
+ (formal->mode == ir_var_out) ? "out" : "inout");
+ }
+ }
+
+ if (formal->type->is_numeric() || formal->type->is_boolean()) {
+ ir_rvalue *converted = convert_component(actual, formal->type);
+ actual->replace_with(converted);
+ }
+
+ actual_iter.next();
+ formal_iter.next();
+ }
+
+ /* Always insert the call in the instruction stream, and return a deref
+ * of its return val if it returns a value, since we don't know if
+ * the rvalue is going to be assigned to anything or not.
+ */
+ ir_call *call = new(ctx) ir_call(sig, actual_parameters);
+ if (!sig->return_type->is_void()) {
+ ir_variable *var;
+ ir_dereference_variable *deref;
+
+ var = new(ctx) ir_variable(sig->return_type,
+ talloc_asprintf(ctx, "%s_retval",
+ sig->function_name()),
+ ir_var_temporary);
+ instructions->push_tail(var);
+
+ deref = new(ctx) ir_dereference_variable(var);
+ ir_assignment *assign = new(ctx) ir_assignment(deref, call, NULL);
+ instructions->push_tail(assign);
+ if (state->language_version >= 120)
+ var->constant_value = call->constant_expression_value();
+
+ deref = new(ctx) ir_dereference_variable(var);
+ return deref;
+ } else {
+ instructions->push_tail(call);
+ return NULL;
+ }
+ } else {
+ char *str = prototype_string(NULL, f->name, actual_parameters);
+
+ _mesa_glsl_error(loc, state, "no matching function for call to `%s'",
+ str);
+ talloc_free(str);
+
+ const char *prefix = "candidates are: ";
+ foreach_list (node, &f->signatures) {
+ ir_function_signature *sig = (ir_function_signature *) node;
+
+ str = prototype_string(sig->return_type, f->name, &sig->parameters);
+ _mesa_glsl_error(loc, state, "%s%s\n", prefix, str);
+ talloc_free(str);
+
+ prefix = " ";
+ }
+
+ return ir_call::get_error_instruction(ctx);
+ }
+}
+
+
+static ir_rvalue *
+match_function_by_name(exec_list *instructions, const char *name,
+ YYLTYPE *loc, exec_list *actual_parameters,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ ir_function *f = state->symbols->get_function(name);
+
+ if (f == NULL) {
+ _mesa_glsl_error(loc, state, "function `%s' undeclared", name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ /* Once we've determined that the function being called might exist, try
+ * to find an overload of the function that matches the parameters.
+ */
+ return process_call(instructions, f, loc, actual_parameters, state);
+}
+
+
+/**
+ * Perform automatic type conversion of constructor parameters
+ *
+ * This implements the rules in the "Conversion and Scalar Constructors"
+ * section (GLSL 1.10 section 5.4.1), not the "Implicit Conversions" rules.
+ */
+static ir_rvalue *
+convert_component(ir_rvalue *src, const glsl_type *desired_type)
+{
+ void *ctx = talloc_parent(src);
+ const unsigned a = desired_type->base_type;
+ const unsigned b = src->type->base_type;
+ ir_expression *result = NULL;
+
+ if (src->type->is_error())
+ return src;
+
+ assert(a <= GLSL_TYPE_BOOL);
+ assert(b <= GLSL_TYPE_BOOL);
+
+ if ((a == b) || (src->type->is_integer() && desired_type->is_integer()))
+ return src;
+
+ switch (a) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ if (b == GLSL_TYPE_FLOAT)
+ result = new(ctx) ir_expression(ir_unop_f2i, desired_type, src, NULL);
+ else {
+ assert(b == GLSL_TYPE_BOOL);
+ result = new(ctx) ir_expression(ir_unop_b2i, desired_type, src, NULL);
+ }
+ break;
+ case GLSL_TYPE_FLOAT:
+ switch (b) {
+ case GLSL_TYPE_UINT:
+ result = new(ctx) ir_expression(ir_unop_u2f, desired_type, src, NULL);
+ break;
+ case GLSL_TYPE_INT:
+ result = new(ctx) ir_expression(ir_unop_i2f, desired_type, src, NULL);
+ break;
+ case GLSL_TYPE_BOOL:
+ result = new(ctx) ir_expression(ir_unop_b2f, desired_type, src, NULL);
+ break;
+ }
+ break;
+ case GLSL_TYPE_BOOL:
+ switch (b) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ result = new(ctx) ir_expression(ir_unop_i2b, desired_type, src, NULL);
+ break;
+ case GLSL_TYPE_FLOAT:
+ result = new(ctx) ir_expression(ir_unop_f2b, desired_type, src, NULL);
+ break;
+ }
+ break;
+ }
+
+ assert(result != NULL);
+
+ /* Try constant folding; it may fold in the conversion we just added. */
+ ir_constant *const constant = result->constant_expression_value();
+ return (constant != NULL) ? (ir_rvalue *) constant : (ir_rvalue *) result;
+}
+
+/**
+ * Dereference a specific component from a scalar, vector, or matrix
+ */
+static ir_rvalue *
+dereference_component(ir_rvalue *src, unsigned component)
+{
+ void *ctx = talloc_parent(src);
+ assert(component < src->type->components());
+
+ /* If the source is a constant, just create a new constant instead of a
+ * dereference of the existing constant.
+ */
+ ir_constant *constant = src->as_constant();
+ if (constant)
+ return new(ctx) ir_constant(constant, component);
+
+ if (src->type->is_scalar()) {
+ return src;
+ } else if (src->type->is_vector()) {
+ return new(ctx) ir_swizzle(src, component, 0, 0, 0, 1);
+ } else {
+ assert(src->type->is_matrix());
+
+ /* Dereference a row of the matrix, then call this function again to get
+ * a specific element from that row.
+ */
+ const int c = component / src->type->column_type()->vector_elements;
+ const int r = component % src->type->column_type()->vector_elements;
+ ir_constant *const col_index = new(ctx) ir_constant(c);
+ ir_dereference *const col = new(ctx) ir_dereference_array(src, col_index);
+
+ col->type = src->type->column_type();
+
+ return dereference_component(col, r);
+ }
+
+ assert(!"Should not get here.");
+ return NULL;
+}
+
+
+static ir_rvalue *
+process_array_constructor(exec_list *instructions,
+ const glsl_type *constructor_type,
+ YYLTYPE *loc, exec_list *parameters,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ /* Array constructors come in two forms: sized and unsized. Sized array
+ * constructors look like 'vec4[2](a, b)', where 'a' and 'b' are vec4
+ * variables. In this case the number of parameters must exactly match the
+ * specified size of the array.
+ *
+ * Unsized array constructors look like 'vec4[](a, b)', where 'a' and 'b'
+ * are vec4 variables. In this case the size of the array being constructed
+ * is determined by the number of parameters.
+ *
+ * From page 52 (page 58 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "There must be exactly the same number of arguments as the size of
+ * the array being constructed. If no size is present in the
+ * constructor, then the array is explicitly sized to the number of
+ * arguments provided. The arguments are assigned in order, starting at
+ * element 0, to the elements of the constructed array. Each argument
+ * must be the same type as the element type of the array, or be a type
+ * that can be converted to the element type of the array according to
+ * Section 4.1.10 "Implicit Conversions.""
+ */
+ exec_list actual_parameters;
+ const unsigned parameter_count =
+ process_parameters(instructions, &actual_parameters, parameters, state);
+
+ if ((parameter_count == 0)
+ || ((constructor_type->length != 0)
+ && (constructor_type->length != parameter_count))) {
+ const unsigned min_param = (constructor_type->length == 0)
+ ? 1 : constructor_type->length;
+
+ _mesa_glsl_error(loc, state, "array constructor must have %s %u "
+ "parameter%s",
+ (constructor_type->length != 0) ? "at least" : "exactly",
+ min_param, (min_param <= 1) ? "" : "s");
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ if (constructor_type->length == 0) {
+ constructor_type =
+ glsl_type::get_array_instance(constructor_type->element_type(),
+ parameter_count);
+ assert(constructor_type != NULL);
+ assert(constructor_type->length == parameter_count);
+ }
+
+ bool all_parameters_are_constant = true;
+
+ /* Type cast each parameter and, if possible, fold constants. */
+ foreach_list_safe(n, &actual_parameters) {
+ ir_rvalue *ir = (ir_rvalue *) n;
+ ir_rvalue *result = ir;
+
+ /* Apply implicit conversions (not the scalar constructor rules!) */
+ if (constructor_type->element_type()->is_float()) {
+ const glsl_type *desired_type =
+ glsl_type::get_instance(GLSL_TYPE_FLOAT,
+ ir->type->vector_elements,
+ ir->type->matrix_columns);
+ result = convert_component(ir, desired_type);
+ }
+
+ if (result->type != constructor_type->element_type()) {
+ _mesa_glsl_error(loc, state, "type error in array constructor: "
+ "expected: %s, found %s",
+ constructor_type->element_type()->name,
+ result->type->name);
+ }
+
+ /* Attempt to convert the parameter to a constant valued expression.
+ * After doing so, track whether or not all the parameters to the
+ * constructor are trivially constant valued expressions.
+ */
+ ir_rvalue *const constant = result->constant_expression_value();
+
+ if (constant != NULL)
+ result = constant;
+ else
+ all_parameters_are_constant = false;
+
+ ir->replace_with(result);
+ }
+
+ if (all_parameters_are_constant)
+ return new(ctx) ir_constant(constructor_type, &actual_parameters);
+
+ ir_variable *var = new(ctx) ir_variable(constructor_type, "array_ctor",
+ ir_var_temporary);
+ instructions->push_tail(var);
+
+ int i = 0;
+ foreach_list(node, &actual_parameters) {
+ ir_rvalue *rhs = (ir_rvalue *) node;
+ ir_rvalue *lhs = new(ctx) ir_dereference_array(var,
+ new(ctx) ir_constant(i));
+
+ ir_instruction *assignment = new(ctx) ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(assignment);
+
+ i++;
+ }
+
+ return new(ctx) ir_dereference_variable(var);
+}
+
+
+/**
+ * Try to convert a record constructor to a constant expression
+ */
+static ir_constant *
+constant_record_constructor(const glsl_type *constructor_type,
+ exec_list *parameters, void *mem_ctx)
+{
+ foreach_list(node, parameters) {
+ ir_constant *constant = ((ir_instruction *) node)->as_constant();
+ if (constant == NULL)
+ return NULL;
+ node->replace_with(constant);
+ }
+
+ return new(mem_ctx) ir_constant(constructor_type, parameters);
+}
+
+
+/**
+ * Determine if a list consists of a single scalar r-value
+ */
+bool
+single_scalar_parameter(exec_list *parameters)
+{
+ const ir_rvalue *const p = (ir_rvalue *) parameters->head;
+ assert(((ir_rvalue *)p)->as_rvalue() != NULL);
+
+ return (p->type->is_scalar() && p->next->is_tail_sentinel());
+}
+
+
+/**
+ * Generate inline code for a vector constructor
+ *
+ * The generated constructor code will consist of a temporary variable
+ * declaration of the same type as the constructor. A sequence of assignments
+ * from constructor parameters to the temporary will follow.
+ *
+ * \return
+ * An \c ir_dereference_variable of the temprorary generated in the constructor
+ * body.
+ */
+ir_rvalue *
+emit_inline_vector_constructor(const glsl_type *type,
+ exec_list *instructions,
+ exec_list *parameters,
+ void *ctx)
+{
+ assert(!parameters->is_empty());
+
+ ir_variable *var = new(ctx) ir_variable(type, "vec_ctor", ir_var_temporary);
+ instructions->push_tail(var);
+
+ /* There are two kinds of vector constructors.
+ *
+ * - Construct a vector from a single scalar by replicating that scalar to
+ * all components of the vector.
+ *
+ * - Construct a vector from an arbirary combination of vectors and
+ * scalars. The components of the constructor parameters are assigned
+ * to the vector in order until the vector is full.
+ */
+ const unsigned lhs_components = type->components();
+ if (single_scalar_parameter(parameters)) {
+ ir_rvalue *first_param = (ir_rvalue *)parameters->head;
+ ir_rvalue *rhs = new(ctx) ir_swizzle(first_param, 0, 0, 0, 0,
+ lhs_components);
+ ir_dereference_variable *lhs = new(ctx) ir_dereference_variable(var);
+ const unsigned mask = (1U << lhs_components) - 1;
+
+ assert(rhs->type == lhs->type);
+
+ ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL, mask);
+ instructions->push_tail(inst);
+ } else {
+ unsigned base_component = 0;
+ unsigned base_lhs_component = 0;
+ ir_constant_data data;
+ unsigned constant_mask = 0, constant_components = 0;
+
+ memset(&data, 0, sizeof(data));
+
+ foreach_list(node, parameters) {
+ ir_rvalue *param = (ir_rvalue *) node;
+ unsigned rhs_components = param->type->components();
+
+ /* Do not try to assign more components to the vector than it has!
+ */
+ if ((rhs_components + base_lhs_component) > lhs_components) {
+ rhs_components = lhs_components - base_lhs_component;
+ }
+
+ const ir_constant *const c = param->as_constant();
+ if (c != NULL) {
+ for (unsigned i = 0; i < rhs_components; i++) {
+ switch (c->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[i + base_component] = c->get_uint_component(i);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[i + base_component] = c->get_int_component(i);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[i + base_component] = c->get_float_component(i);
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[i + base_component] = c->get_bool_component(i);
+ break;
+ default:
+ assert(!"Should not get here.");
+ break;
+ }
+ }
+
+ /* Mask of fields to be written in the assignment.
+ */
+ constant_mask |= ((1U << rhs_components) - 1) << base_lhs_component;
+ constant_components++;
+
+ base_component += rhs_components;
+ }
+ /* Advance the component index by the number of components
+ * that were just assigned.
+ */
+ base_lhs_component += rhs_components;
+ }
+
+ if (constant_mask != 0) {
+ ir_dereference *lhs = new(ctx) ir_dereference_variable(var);
+ const glsl_type *rhs_type = glsl_type::get_instance(var->type->base_type,
+ constant_components,
+ 1);
+ ir_rvalue *rhs = new(ctx) ir_constant(rhs_type, &data);
+
+ ir_instruction *inst =
+ new(ctx) ir_assignment(lhs, rhs, NULL, constant_mask);
+ instructions->push_tail(inst);
+ }
+
+ base_component = 0;
+ foreach_list(node, parameters) {
+ ir_rvalue *param = (ir_rvalue *) node;
+ unsigned rhs_components = param->type->components();
+
+ /* Do not try to assign more components to the vector than it has!
+ */
+ if ((rhs_components + base_component) > lhs_components) {
+ rhs_components = lhs_components - base_component;
+ }
+
+ const ir_constant *const c = param->as_constant();
+ if (c == NULL) {
+ /* Generate a swizzle in case rhs_components != rhs->type->vector_elements. */
+ unsigned swiz[4] = { 0, 0, 0, 0 };
+ for (unsigned i = 0; i < rhs_components; i++)
+ swiz[i] = i;
+
+ /* Mask of fields to be written in the assignment.
+ */
+ const unsigned write_mask = ((1U << rhs_components) - 1)
+ << base_component;
+
+ ir_dereference *lhs = new(ctx) ir_dereference_variable(var);
+ ir_rvalue *rhs = new(ctx) ir_swizzle(param, swiz, rhs_components);
+
+ ir_instruction *inst =
+ new(ctx) ir_assignment(lhs, rhs, NULL, write_mask);
+ instructions->push_tail(inst);
+ }
+
+ /* Advance the component index by the number of components that were
+ * just assigned.
+ */
+ base_component += rhs_components;
+ }
+ }
+ return new(ctx) ir_dereference_variable(var);
+}
+
+
+/**
+ * Generate assignment of a portion of a vector to a portion of a matrix column
+ *
+ * \param src_base First component of the source to be used in assignment
+ * \param column Column of destination to be assiged
+ * \param row_base First component of the destination column to be assigned
+ * \param count Number of components to be assigned
+ *
+ * \note
+ * \c src_base + \c count must be less than or equal to the number of components
+ * in the source vector.
+ */
+ir_instruction *
+assign_to_matrix_column(ir_variable *var, unsigned column, unsigned row_base,
+ ir_rvalue *src, unsigned src_base, unsigned count,
+ void *mem_ctx)
+{
+ ir_constant *col_idx = new(mem_ctx) ir_constant(column);
+ ir_dereference *column_ref = new(mem_ctx) ir_dereference_array(var, col_idx);
+
+ assert(column_ref->type->components() >= (row_base + count));
+ assert(src->type->components() >= (src_base + count));
+
+ /* Generate a swizzle that puts the first element of the source at the
+ * location of the first element of the destination.
+ */
+ unsigned swiz[4] = { src_base, src_base, src_base, src_base };
+ for (unsigned i = 0; i < count; i++)
+ swiz[i + row_base] = i;
+
+ ir_rvalue *const rhs =
+ new(mem_ctx) ir_swizzle(src, swiz, count);
+
+ /* Mask of fields to be written in the assignment.
+ */
+ const unsigned write_mask = ((1U << count) - 1) << row_base;
+
+ return new(mem_ctx) ir_assignment(column_ref, rhs, NULL, write_mask);
+}
+
+
+/**
+ * Generate inline code for a matrix constructor
+ *
+ * The generated constructor code will consist of a temporary variable
+ * declaration of the same type as the constructor. A sequence of assignments
+ * from constructor parameters to the temporary will follow.
+ *
+ * \return
+ * An \c ir_dereference_variable of the temprorary generated in the constructor
+ * body.
+ */
+ir_rvalue *
+emit_inline_matrix_constructor(const glsl_type *type,
+ exec_list *instructions,
+ exec_list *parameters,
+ void *ctx)
+{
+ assert(!parameters->is_empty());
+
+ ir_variable *var = new(ctx) ir_variable(type, "mat_ctor", ir_var_temporary);
+ instructions->push_tail(var);
+
+ /* There are three kinds of matrix constructors.
+ *
+ * - Construct a matrix from a single scalar by replicating that scalar to
+ * along the diagonal of the matrix and setting all other components to
+ * zero.
+ *
+ * - Construct a matrix from an arbirary combination of vectors and
+ * scalars. The components of the constructor parameters are assigned
+ * to the matrix in colum-major order until the matrix is full.
+ *
+ * - Construct a matrix from a single matrix. The source matrix is copied
+ * to the upper left portion of the constructed matrix, and the remaining
+ * elements take values from the identity matrix.
+ */
+ ir_rvalue *const first_param = (ir_rvalue *) parameters->head;
+ if (single_scalar_parameter(parameters)) {
+ /* Assign the scalar to the X component of a vec4, and fill the remaining
+ * components with zero.
+ */
+ ir_variable *rhs_var =
+ new(ctx) ir_variable(glsl_type::vec4_type, "mat_ctor_vec",
+ ir_var_temporary);
+ instructions->push_tail(rhs_var);
+
+ ir_constant_data zero;
+ zero.f[0] = 0.0;
+ zero.f[1] = 0.0;
+ zero.f[2] = 0.0;
+ zero.f[3] = 0.0;
+
+ ir_instruction *inst =
+ new(ctx) ir_assignment(new(ctx) ir_dereference_variable(rhs_var),
+ new(ctx) ir_constant(rhs_var->type, &zero),
+ NULL);
+ instructions->push_tail(inst);
+
+ ir_dereference *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var);
+
+ inst = new(ctx) ir_assignment(rhs_ref, first_param, NULL, 0x01);
+ instructions->push_tail(inst);
+
+ /* Assign the temporary vector to each column of the destination matrix
+ * with a swizzle that puts the X component on the diagonal of the
+ * matrix. In some cases this may mean that the X component does not
+ * get assigned into the column at all (i.e., when the matrix has more
+ * columns than rows).
+ */
+ static const unsigned rhs_swiz[4][4] = {
+ { 0, 1, 1, 1 },
+ { 1, 0, 1, 1 },
+ { 1, 1, 0, 1 },
+ { 1, 1, 1, 0 }
+ };
+
+ const unsigned cols_to_init = MIN2(type->matrix_columns,
+ type->vector_elements);
+ for (unsigned i = 0; i < cols_to_init; i++) {
+ ir_constant *const col_idx = new(ctx) ir_constant(i);
+ ir_rvalue *const col_ref = new(ctx) ir_dereference_array(var, col_idx);
+
+ ir_rvalue *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var);
+ ir_rvalue *const rhs = new(ctx) ir_swizzle(rhs_ref, rhs_swiz[i],
+ type->vector_elements);
+
+ inst = new(ctx) ir_assignment(col_ref, rhs, NULL);
+ instructions->push_tail(inst);
+ }
+
+ for (unsigned i = cols_to_init; i < type->matrix_columns; i++) {
+ ir_constant *const col_idx = new(ctx) ir_constant(i);
+ ir_rvalue *const col_ref = new(ctx) ir_dereference_array(var, col_idx);
+
+ ir_rvalue *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var);
+ ir_rvalue *const rhs = new(ctx) ir_swizzle(rhs_ref, 1, 1, 1, 1,
+ type->vector_elements);
+
+ inst = new(ctx) ir_assignment(col_ref, rhs, NULL);
+ instructions->push_tail(inst);
+ }
+ } else if (first_param->type->is_matrix()) {
+ /* From page 50 (56 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "If a matrix is constructed from a matrix, then each component
+ * (column i, row j) in the result that has a corresponding
+ * component (column i, row j) in the argument will be initialized
+ * from there. All other components will be initialized to the
+ * identity matrix. If a matrix argument is given to a matrix
+ * constructor, it is an error to have any other arguments."
+ */
+ assert(first_param->next->is_tail_sentinel());
+ ir_rvalue *const src_matrix = first_param;
+
+ /* If the source matrix is smaller, pre-initialize the relavent parts of
+ * the destination matrix to the identity matrix.
+ */
+ if ((src_matrix->type->matrix_columns < var->type->matrix_columns)
+ || (src_matrix->type->vector_elements < var->type->vector_elements)) {
+
+ /* If the source matrix has fewer rows, every column of the destination
+ * must be initialized. Otherwise only the columns in the destination
+ * that do not exist in the source must be initialized.
+ */
+ unsigned col =
+ (src_matrix->type->vector_elements < var->type->vector_elements)
+ ? 0 : src_matrix->type->matrix_columns;
+
+ const glsl_type *const col_type = var->type->column_type();
+ for (/* empty */; col < var->type->matrix_columns; col++) {
+ ir_constant_data ident;
+
+ ident.f[0] = 0.0;
+ ident.f[1] = 0.0;
+ ident.f[2] = 0.0;
+ ident.f[3] = 0.0;
+
+ ident.f[col] = 1.0;
+
+ ir_rvalue *const rhs = new(ctx) ir_constant(col_type, &ident);
+
+ ir_rvalue *const lhs =
+ new(ctx) ir_dereference_array(var, new(ctx) ir_constant(col));
+
+ ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(inst);
+ }
+ }
+
+ /* Assign columns from the source matrix to the destination matrix.
+ *
+ * Since the parameter will be used in the RHS of multiple assignments,
+ * generate a temporary and copy the paramter there.
+ */
+ ir_variable *const rhs_var =
+ new(ctx) ir_variable(first_param->type, "mat_ctor_mat",
+ ir_var_temporary);
+ instructions->push_tail(rhs_var);
+
+ ir_dereference *const rhs_var_ref =
+ new(ctx) ir_dereference_variable(rhs_var);
+ ir_instruction *const inst =
+ new(ctx) ir_assignment(rhs_var_ref, first_param, NULL);
+ instructions->push_tail(inst);
+
+ const unsigned last_row = MIN2(src_matrix->type->vector_elements,
+ var->type->vector_elements);
+ const unsigned last_col = MIN2(src_matrix->type->matrix_columns,
+ var->type->matrix_columns);
+
+ unsigned swiz[4] = { 0, 0, 0, 0 };
+ for (unsigned i = 1; i < last_row; i++)
+ swiz[i] = i;
+
+ const unsigned write_mask = (1U << last_row) - 1;
+
+ for (unsigned i = 0; i < last_col; i++) {
+ ir_dereference *const lhs =
+ new(ctx) ir_dereference_array(var, new(ctx) ir_constant(i));
+ ir_rvalue *const rhs_col =
+ new(ctx) ir_dereference_array(rhs_var, new(ctx) ir_constant(i));
+
+ /* If one matrix has columns that are smaller than the columns of the
+ * other matrix, wrap the column access of the larger with a swizzle
+ * so that the LHS and RHS of the assignment have the same size (and
+ * therefore have the same type).
+ *
+ * It would be perfectly valid to unconditionally generate the
+ * swizzles, this this will typically result in a more compact IR tree.
+ */
+ ir_rvalue *rhs;
+ if (lhs->type->vector_elements != rhs_col->type->vector_elements) {
+ rhs = new(ctx) ir_swizzle(rhs_col, swiz, last_row);
+ } else {
+ rhs = rhs_col;
+ }
+
+ ir_instruction *inst =
+ new(ctx) ir_assignment(lhs, rhs, NULL, write_mask);
+ instructions->push_tail(inst);
+ }
+ } else {
+ const unsigned cols = type->matrix_columns;
+ const unsigned rows = type->vector_elements;
+ unsigned col_idx = 0;
+ unsigned row_idx = 0;
+
+ foreach_list (node, parameters) {
+ ir_rvalue *const rhs = (ir_rvalue *) node;
+ const unsigned components_remaining_this_column = rows - row_idx;
+ unsigned rhs_components = rhs->type->components();
+ unsigned rhs_base = 0;
+
+ /* Since the parameter might be used in the RHS of two assignments,
+ * generate a temporary and copy the paramter there.
+ */
+ ir_variable *rhs_var =
+ new(ctx) ir_variable(rhs->type, "mat_ctor_vec", ir_var_temporary);
+ instructions->push_tail(rhs_var);
+
+ ir_dereference *rhs_var_ref =
+ new(ctx) ir_dereference_variable(rhs_var);
+ ir_instruction *inst = new(ctx) ir_assignment(rhs_var_ref, rhs, NULL);
+ instructions->push_tail(inst);
+
+ /* Assign the current parameter to as many components of the matrix
+ * as it will fill.
+ *
+ * NOTE: A single vector parameter can span two matrix columns. A
+ * single vec4, for example, can completely fill a mat2.
+ */
+ if (rhs_components >= components_remaining_this_column) {
+ const unsigned count = MIN2(rhs_components,
+ components_remaining_this_column);
+
+ rhs_var_ref = new(ctx) ir_dereference_variable(rhs_var);
+
+ ir_instruction *inst = assign_to_matrix_column(var, col_idx,
+ row_idx,
+ rhs_var_ref, 0,
+ count, ctx);
+ instructions->push_tail(inst);
+
+ rhs_base = count;
+
+ col_idx++;
+ row_idx = 0;
+ }
+
+ /* If there is data left in the parameter and components left to be
+ * set in the destination, emit another assignment. It is possible
+ * that the assignment could be of a vec4 to the last element of the
+ * matrix. In this case col_idx==cols, but there is still data
+ * left in the source parameter. Obviously, don't emit an assignment
+ * to data outside the destination matrix.
+ */
+ if ((col_idx < cols) && (rhs_base < rhs_components)) {
+ const unsigned count = rhs_components - rhs_base;
+
+ rhs_var_ref = new(ctx) ir_dereference_variable(rhs_var);
+
+ ir_instruction *inst = assign_to_matrix_column(var, col_idx,
+ row_idx,
+ rhs_var_ref,
+ rhs_base,
+ count, ctx);
+ instructions->push_tail(inst);
+
+ row_idx += count;
+ }
+ }
+ }
+
+ return new(ctx) ir_dereference_variable(var);
+}
+
+
+ir_rvalue *
+emit_inline_record_constructor(const glsl_type *type,
+ exec_list *instructions,
+ exec_list *parameters,
+ void *mem_ctx)
+{
+ ir_variable *const var =
+ new(mem_ctx) ir_variable(type, "record_ctor", ir_var_temporary);
+ ir_dereference_variable *const d = new(mem_ctx) ir_dereference_variable(var);
+
+ instructions->push_tail(var);
+
+ exec_node *node = parameters->head;
+ for (unsigned i = 0; i < type->length; i++) {
+ assert(!node->is_tail_sentinel());
+
+ ir_dereference *const lhs =
+ new(mem_ctx) ir_dereference_record(d->clone(mem_ctx, NULL),
+ type->fields.structure[i].name);
+
+ ir_rvalue *const rhs = ((ir_instruction *) node)->as_rvalue();
+ assert(rhs != NULL);
+
+ ir_instruction *const assign = new(mem_ctx) ir_assignment(lhs, rhs, NULL);
+
+ instructions->push_tail(assign);
+ node = node->next;
+ }
+
+ return d;
+}
+
+
+ir_rvalue *
+ast_function_expression::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ /* There are three sorts of function calls.
+ *
+ * 1. constructors - The first subexpression is an ast_type_specifier.
+ * 2. methods - Only the .length() method of array types.
+ * 3. functions - Calls to regular old functions.
+ *
+ * Method calls are actually detected when the ast_field_selection
+ * expression is handled.
+ */
+ if (is_constructor()) {
+ const ast_type_specifier *type = (ast_type_specifier *) subexpressions[0];
+ YYLTYPE loc = type->get_location();
+ const char *name;
+
+ const glsl_type *const constructor_type = type->glsl_type(& name, state);
+
+
+ /* Constructors for samplers are illegal.
+ */
+ if (constructor_type->is_sampler()) {
+ _mesa_glsl_error(& loc, state, "cannot construct sampler type `%s'",
+ constructor_type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ if (constructor_type->is_array()) {
+ if (state->language_version <= 110) {
+ _mesa_glsl_error(& loc, state,
+ "array constructors forbidden in GLSL 1.10");
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ return process_array_constructor(instructions, constructor_type,
+ & loc, &this->expressions, state);
+ }
+
+
+ /* There are two kinds of constructor call. Constructors for built-in
+ * language types, such as mat4 and vec2, are free form. The only
+ * requirement is that the parameters must provide enough values of the
+ * correct scalar type. Constructors for arrays and structures must
+ * have the exact number of parameters with matching types in the
+ * correct order. These constructors follow essentially the same type
+ * matching rules as functions.
+ */
+ if (!constructor_type->is_numeric() && !constructor_type->is_boolean())
+ return ir_call::get_error_instruction(ctx);
+
+ /* Total number of components of the type being constructed. */
+ const unsigned type_components = constructor_type->components();
+
+ /* Number of components from parameters that have actually been
+ * consumed. This is used to perform several kinds of error checking.
+ */
+ unsigned components_used = 0;
+
+ unsigned matrix_parameters = 0;
+ unsigned nonmatrix_parameters = 0;
+ exec_list actual_parameters;
+
+ foreach_list (n, &this->expressions) {
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ir_rvalue *result = ast->hir(instructions, state)->as_rvalue();
+
+ /* From page 50 (page 56 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "It is an error to provide extra arguments beyond this
+ * last used argument."
+ */
+ if (components_used >= type_components) {
+ _mesa_glsl_error(& loc, state, "too many parameters to `%s' "
+ "constructor",
+ constructor_type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ if (!result->type->is_numeric() && !result->type->is_boolean()) {
+ _mesa_glsl_error(& loc, state, "cannot construct `%s' from a "
+ "non-numeric data type",
+ constructor_type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ /* Count the number of matrix and nonmatrix parameters. This
+ * is used below to enforce some of the constructor rules.
+ */
+ if (result->type->is_matrix())
+ matrix_parameters++;
+ else
+ nonmatrix_parameters++;
+
+ actual_parameters.push_tail(result);
+ components_used += result->type->components();
+ }
+
+ /* From page 28 (page 34 of the PDF) of the GLSL 1.10 spec:
+ *
+ * "It is an error to construct matrices from other matrices. This
+ * is reserved for future use."
+ */
+ if (state->language_version == 110 && matrix_parameters > 0
+ && constructor_type->is_matrix()) {
+ _mesa_glsl_error(& loc, state, "cannot construct `%s' from a "
+ "matrix in GLSL 1.10",
+ constructor_type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ /* From page 50 (page 56 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "If a matrix argument is given to a matrix constructor, it is
+ * an error to have any other arguments."
+ */
+ if ((matrix_parameters > 0)
+ && ((matrix_parameters + nonmatrix_parameters) > 1)
+ && constructor_type->is_matrix()) {
+ _mesa_glsl_error(& loc, state, "for matrix `%s' constructor, "
+ "matrix must be only parameter",
+ constructor_type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ /* From page 28 (page 34 of the PDF) of the GLSL 1.10 spec:
+ *
+ * "In these cases, there must be enough components provided in the
+ * arguments to provide an initializer for every component in the
+ * constructed value."
+ */
+ if (components_used < type_components && components_used != 1
+ && matrix_parameters == 0) {
+ _mesa_glsl_error(& loc, state, "too few components to construct "
+ "`%s'",
+ constructor_type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ /* Later, we cast each parameter to the same base type as the
+ * constructor. Since there are no non-floating point matrices, we
+ * need to break them up into a series of column vectors.
+ */
+ if (constructor_type->base_type != GLSL_TYPE_FLOAT) {
+ foreach_list_safe(n, &actual_parameters) {
+ ir_rvalue *matrix = (ir_rvalue *) n;
+
+ if (!matrix->type->is_matrix())
+ continue;
+
+ /* Create a temporary containing the matrix. */
+ ir_variable *var = new(ctx) ir_variable(matrix->type, "matrix_tmp",
+ ir_var_temporary);
+ instructions->push_tail(var);
+ instructions->push_tail(new(ctx) ir_assignment(new(ctx)
+ ir_dereference_variable(var), matrix, NULL));
+ var->constant_value = matrix->constant_expression_value();
+
+ /* Replace the matrix with dereferences of its columns. */
+ for (int i = 0; i < matrix->type->matrix_columns; i++) {
+ matrix->insert_before(new (ctx) ir_dereference_array(var,
+ new(ctx) ir_constant(i)));
+ }
+ matrix->remove();
+ }
+ }
+
+ bool all_parameters_are_constant = true;
+
+ /* Type cast each parameter and, if possible, fold constants.*/
+ foreach_list_safe(n, &actual_parameters) {
+ ir_rvalue *ir = (ir_rvalue *) n;
+
+ const glsl_type *desired_type =
+ glsl_type::get_instance(constructor_type->base_type,
+ ir->type->vector_elements,
+ ir->type->matrix_columns);
+ ir_rvalue *result = convert_component(ir, desired_type);
+
+ /* Attempt to convert the parameter to a constant valued expression.
+ * After doing so, track whether or not all the parameters to the
+ * constructor are trivially constant valued expressions.
+ */
+ ir_rvalue *const constant = result->constant_expression_value();
+
+ if (constant != NULL)
+ result = constant;
+ else
+ all_parameters_are_constant = false;
+
+ if (result != ir) {
+ ir->replace_with(result);
+ }
+ }
+
+ /* If all of the parameters are trivially constant, create a
+ * constant representing the complete collection of parameters.
+ */
+ if (all_parameters_are_constant) {
+ return new(ctx) ir_constant(constructor_type, &actual_parameters);
+ } else if (constructor_type->is_scalar()) {
+ return dereference_component((ir_rvalue *) actual_parameters.head,
+ 0);
+ } else if (constructor_type->is_vector()) {
+ return emit_inline_vector_constructor(constructor_type,
+ instructions,
+ &actual_parameters,
+ ctx);
+ } else {
+ assert(constructor_type->is_matrix());
+ return emit_inline_matrix_constructor(constructor_type,
+ instructions,
+ &actual_parameters,
+ ctx);
+ }
+ } else {
+ const ast_expression *id = subexpressions[0];
+ YYLTYPE loc = id->get_location();
+ exec_list actual_parameters;
+
+ process_parameters(instructions, &actual_parameters, &this->expressions,
+ state);
+
+ const glsl_type *const type =
+ state->symbols->get_type(id->primary_expression.identifier);
+
+ if ((type != NULL) && type->is_record()) {
+ exec_node *node = actual_parameters.head;
+ for (unsigned i = 0; i < type->length; i++) {
+ ir_rvalue *ir = (ir_rvalue *) node;
+
+ if (node->is_tail_sentinel()) {
+ _mesa_glsl_error(&loc, state,
+ "insufficient parameters to constructor "
+ "for `%s'",
+ type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ if (apply_implicit_conversion(type->fields.structure[i].type, ir,
+ state)) {
+ node->replace_with(ir);
+ } else {
+ _mesa_glsl_error(&loc, state,
+ "parameter type mismatch in constructor "
+ "for `%s.%s' (%s vs %s)",
+ type->name,
+ type->fields.structure[i].name,
+ ir->type->name,
+ type->fields.structure[i].type->name);
+ return ir_call::get_error_instruction(ctx);;
+ }
+
+ node = node->next;
+ }
+
+ if (!node->is_tail_sentinel()) {
+ _mesa_glsl_error(&loc, state, "too many parameters in constructor "
+ "for `%s'", type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ ir_rvalue *const constant =
+ constant_record_constructor(type, &actual_parameters, state);
+
+ return (constant != NULL)
+ ? constant
+ : emit_inline_record_constructor(type, instructions,
+ &actual_parameters, state);
+ }
+
+ return match_function_by_name(instructions,
+ id->primary_expression.identifier, & loc,
+ &actual_parameters, state);
+ }
+
+ return ir_call::get_error_instruction(ctx);
+}
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
new file mode 100644
index 000000000..0cbb4315a
--- /dev/null
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -0,0 +1,2769 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ast_to_hir.c
+ * Convert abstract syntax to to high-level intermediate reprensentation (HIR).
+ *
+ * During the conversion to HIR, the majority of the symantic checking is
+ * preformed on the program. This includes:
+ *
+ * * Symbol table management
+ * * Type checking
+ * * Function binding
+ *
+ * The majority of this work could be done during parsing, and the parser could
+ * probably generate HIR directly. However, this results in frequent changes
+ * to the parser code. Since we do not assume that every system this complier
+ * is built on will have Flex and Bison installed, we have to store the code
+ * generated by these tools in our version control system. In other parts of
+ * the system we've seen problems where a parser was changed but the generated
+ * code was not committed, merge conflicts where created because two developers
+ * had slightly different versions of Bison installed, etc.
+ *
+ * I have also noticed that running Bison generated parsers in GDB is very
+ * irritating. When you get a segfault on '$$ = $1->foo', you can't very
+ * well 'print $1' in GDB.
+ *
+ * As a result, my preference is to put as little C code as possible in the
+ * parser (and lexer) sources.
+ */
+
+#include "main/core.h" /* for struct gl_extensions */
+#include "glsl_symbol_table.h"
+#include "glsl_parser_extras.h"
+#include "ast.h"
+#include "glsl_types.h"
+#include "ir.h"
+
+void
+_mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state)
+{
+ _mesa_glsl_initialize_variables(instructions, state);
+ _mesa_glsl_initialize_functions(instructions, state);
+
+ state->symbols->language_version = state->language_version;
+
+ state->current_function = NULL;
+
+ /* Section 4.2 of the GLSL 1.20 specification states:
+ * "The built-in functions are scoped in a scope outside the global scope
+ * users declare global variables in. That is, a shader's global scope,
+ * available for user-defined functions and global variables, is nested
+ * inside the scope containing the built-in functions."
+ *
+ * Since built-in functions like ftransform() access built-in variables,
+ * it follows that those must be in the outer scope as well.
+ *
+ * We push scope here to create this nesting effect...but don't pop.
+ * This way, a shader's globals are still in the symbol table for use
+ * by the linker.
+ */
+ state->symbols->push_scope();
+
+ foreach_list_typed (ast_node, ast, link, & state->translation_unit)
+ ast->hir(instructions, state);
+}
+
+
+/**
+ * If a conversion is available, convert one operand to a different type
+ *
+ * The \c from \c ir_rvalue is converted "in place".
+ *
+ * \param to Type that the operand it to be converted to
+ * \param from Operand that is being converted
+ * \param state GLSL compiler state
+ *
+ * \return
+ * If a conversion is possible (or unnecessary), \c true is returned.
+ * Otherwise \c false is returned.
+ */
+bool
+apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ if (to->base_type == from->type->base_type)
+ return true;
+
+ /* This conversion was added in GLSL 1.20. If the compilation mode is
+ * GLSL 1.10, the conversion is skipped.
+ */
+ if (state->language_version < 120)
+ return false;
+
+ /* From page 27 (page 33 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "There are no implicit array or structure conversions. For
+ * example, an array of int cannot be implicitly converted to an
+ * array of float. There are no implicit conversions between
+ * signed and unsigned integers."
+ */
+ /* FINISHME: The above comment is partially a lie. There is int/uint
+ * FINISHME: conversion for immediate constants.
+ */
+ if (!to->is_float() || !from->type->is_numeric())
+ return false;
+
+ /* Convert to a floating point type with the same number of components
+ * as the original type - i.e. int to float, not int to vec4.
+ */
+ to = glsl_type::get_instance(GLSL_TYPE_FLOAT, from->type->vector_elements,
+ from->type->matrix_columns);
+
+ switch (from->type->base_type) {
+ case GLSL_TYPE_INT:
+ from = new(ctx) ir_expression(ir_unop_i2f, to, from, NULL);
+ break;
+ case GLSL_TYPE_UINT:
+ from = new(ctx) ir_expression(ir_unop_u2f, to, from, NULL);
+ break;
+ case GLSL_TYPE_BOOL:
+ from = new(ctx) ir_expression(ir_unop_b2f, to, from, NULL);
+ break;
+ default:
+ assert(0);
+ }
+
+ return true;
+}
+
+
+static const struct glsl_type *
+arithmetic_result_type(ir_rvalue * &value_a, ir_rvalue * &value_b,
+ bool multiply,
+ struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
+{
+ const glsl_type *type_a = value_a->type;
+ const glsl_type *type_b = value_b->type;
+
+ /* From GLSL 1.50 spec, page 56:
+ *
+ * "The arithmetic binary operators add (+), subtract (-),
+ * multiply (*), and divide (/) operate on integer and
+ * floating-point scalars, vectors, and matrices."
+ */
+ if (!type_a->is_numeric() || !type_b->is_numeric()) {
+ _mesa_glsl_error(loc, state,
+ "Operands to arithmetic operators must be numeric");
+ return glsl_type::error_type;
+ }
+
+
+ /* "If one operand is floating-point based and the other is
+ * not, then the conversions from Section 4.1.10 "Implicit
+ * Conversions" are applied to the non-floating-point-based operand."
+ */
+ if (!apply_implicit_conversion(type_a, value_b, state)
+ && !apply_implicit_conversion(type_b, value_a, state)) {
+ _mesa_glsl_error(loc, state,
+ "Could not implicitly convert operands to "
+ "arithmetic operator");
+ return glsl_type::error_type;
+ }
+ type_a = value_a->type;
+ type_b = value_b->type;
+
+ /* "If the operands are integer types, they must both be signed or
+ * both be unsigned."
+ *
+ * From this rule and the preceeding conversion it can be inferred that
+ * both types must be GLSL_TYPE_FLOAT, or GLSL_TYPE_UINT, or GLSL_TYPE_INT.
+ * The is_numeric check above already filtered out the case where either
+ * type is not one of these, so now the base types need only be tested for
+ * equality.
+ */
+ if (type_a->base_type != type_b->base_type) {
+ _mesa_glsl_error(loc, state,
+ "base type mismatch for arithmetic operator");
+ return glsl_type::error_type;
+ }
+
+ /* "All arithmetic binary operators result in the same fundamental type
+ * (signed integer, unsigned integer, or floating-point) as the
+ * operands they operate on, after operand type conversion. After
+ * conversion, the following cases are valid
+ *
+ * * The two operands are scalars. In this case the operation is
+ * applied, resulting in a scalar."
+ */
+ if (type_a->is_scalar() && type_b->is_scalar())
+ return type_a;
+
+ /* "* One operand is a scalar, and the other is a vector or matrix.
+ * In this case, the scalar operation is applied independently to each
+ * component of the vector or matrix, resulting in the same size
+ * vector or matrix."
+ */
+ if (type_a->is_scalar()) {
+ if (!type_b->is_scalar())
+ return type_b;
+ } else if (type_b->is_scalar()) {
+ return type_a;
+ }
+
+ /* All of the combinations of <scalar, scalar>, <vector, scalar>,
+ * <scalar, vector>, <scalar, matrix>, and <matrix, scalar> have been
+ * handled.
+ */
+ assert(!type_a->is_scalar());
+ assert(!type_b->is_scalar());
+
+ /* "* The two operands are vectors of the same size. In this case, the
+ * operation is done component-wise resulting in the same size
+ * vector."
+ */
+ if (type_a->is_vector() && type_b->is_vector()) {
+ if (type_a == type_b) {
+ return type_a;
+ } else {
+ _mesa_glsl_error(loc, state,
+ "vector size mismatch for arithmetic operator");
+ return glsl_type::error_type;
+ }
+ }
+
+ /* All of the combinations of <scalar, scalar>, <vector, scalar>,
+ * <scalar, vector>, <scalar, matrix>, <matrix, scalar>, and
+ * <vector, vector> have been handled. At least one of the operands must
+ * be matrix. Further, since there are no integer matrix types, the base
+ * type of both operands must be float.
+ */
+ assert(type_a->is_matrix() || type_b->is_matrix());
+ assert(type_a->base_type == GLSL_TYPE_FLOAT);
+ assert(type_b->base_type == GLSL_TYPE_FLOAT);
+
+ /* "* The operator is add (+), subtract (-), or divide (/), and the
+ * operands are matrices with the same number of rows and the same
+ * number of columns. In this case, the operation is done component-
+ * wise resulting in the same size matrix."
+ * * The operator is multiply (*), where both operands are matrices or
+ * one operand is a vector and the other a matrix. A right vector
+ * operand is treated as a column vector and a left vector operand as a
+ * row vector. In all these cases, it is required that the number of
+ * columns of the left operand is equal to the number of rows of the
+ * right operand. Then, the multiply (*) operation does a linear
+ * algebraic multiply, yielding an object that has the same number of
+ * rows as the left operand and the same number of columns as the right
+ * operand. Section 5.10 "Vector and Matrix Operations" explains in
+ * more detail how vectors and matrices are operated on."
+ */
+ if (! multiply) {
+ if (type_a == type_b)
+ return type_a;
+ } else {
+ if (type_a->is_matrix() && type_b->is_matrix()) {
+ /* Matrix multiply. The columns of A must match the rows of B. Given
+ * the other previously tested constraints, this means the vector type
+ * of a row from A must be the same as the vector type of a column from
+ * B.
+ */
+ if (type_a->row_type() == type_b->column_type()) {
+ /* The resulting matrix has the number of columns of matrix B and
+ * the number of rows of matrix A. We get the row count of A by
+ * looking at the size of a vector that makes up a column. The
+ * transpose (size of a row) is done for B.
+ */
+ const glsl_type *const type =
+ glsl_type::get_instance(type_a->base_type,
+ type_a->column_type()->vector_elements,
+ type_b->row_type()->vector_elements);
+ assert(type != glsl_type::error_type);
+
+ return type;
+ }
+ } else if (type_a->is_matrix()) {
+ /* A is a matrix and B is a column vector. Columns of A must match
+ * rows of B. Given the other previously tested constraints, this
+ * means the vector type of a row from A must be the same as the
+ * vector the type of B.
+ */
+ if (type_a->row_type() == type_b) {
+ /* The resulting vector has a number of elements equal to
+ * the number of rows of matrix A. */
+ const glsl_type *const type =
+ glsl_type::get_instance(type_a->base_type,
+ type_a->column_type()->vector_elements,
+ 1);
+ assert(type != glsl_type::error_type);
+
+ return type;
+ }
+ } else {
+ assert(type_b->is_matrix());
+
+ /* A is a row vector and B is a matrix. Columns of A must match rows
+ * of B. Given the other previously tested constraints, this means
+ * the type of A must be the same as the vector type of a column from
+ * B.
+ */
+ if (type_a == type_b->column_type()) {
+ /* The resulting vector has a number of elements equal to
+ * the number of columns of matrix B. */
+ const glsl_type *const type =
+ glsl_type::get_instance(type_a->base_type,
+ type_b->row_type()->vector_elements,
+ 1);
+ assert(type != glsl_type::error_type);
+
+ return type;
+ }
+ }
+
+ _mesa_glsl_error(loc, state, "size mismatch for matrix multiplication");
+ return glsl_type::error_type;
+ }
+
+
+ /* "All other cases are illegal."
+ */
+ _mesa_glsl_error(loc, state, "type mismatch");
+ return glsl_type::error_type;
+}
+
+
+static const struct glsl_type *
+unary_arithmetic_result_type(const struct glsl_type *type,
+ struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
+{
+ /* From GLSL 1.50 spec, page 57:
+ *
+ * "The arithmetic unary operators negate (-), post- and pre-increment
+ * and decrement (-- and ++) operate on integer or floating-point
+ * values (including vectors and matrices). All unary operators work
+ * component-wise on their operands. These result with the same type
+ * they operated on."
+ */
+ if (!type->is_numeric()) {
+ _mesa_glsl_error(loc, state,
+ "Operands to arithmetic operators must be numeric");
+ return glsl_type::error_type;
+ }
+
+ return type;
+}
+
+
+static const struct glsl_type *
+modulus_result_type(const struct glsl_type *type_a,
+ const struct glsl_type *type_b,
+ struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
+{
+ /* From GLSL 1.50 spec, page 56:
+ * "The operator modulus (%) operates on signed or unsigned integers or
+ * integer vectors. The operand types must both be signed or both be
+ * unsigned."
+ */
+ if (!type_a->is_integer() || !type_b->is_integer()
+ || (type_a->base_type != type_b->base_type)) {
+ _mesa_glsl_error(loc, state, "type mismatch");
+ return glsl_type::error_type;
+ }
+
+ /* "The operands cannot be vectors of differing size. If one operand is
+ * a scalar and the other vector, then the scalar is applied component-
+ * wise to the vector, resulting in the same type as the vector. If both
+ * are vectors of the same size, the result is computed component-wise."
+ */
+ if (type_a->is_vector()) {
+ if (!type_b->is_vector()
+ || (type_a->vector_elements == type_b->vector_elements))
+ return type_a;
+ } else
+ return type_b;
+
+ /* "The operator modulus (%) is not defined for any other data types
+ * (non-integer types)."
+ */
+ _mesa_glsl_error(loc, state, "type mismatch");
+ return glsl_type::error_type;
+}
+
+
+static const struct glsl_type *
+relational_result_type(ir_rvalue * &value_a, ir_rvalue * &value_b,
+ struct _mesa_glsl_parse_state *state, YYLTYPE *loc)
+{
+ const glsl_type *type_a = value_a->type;
+ const glsl_type *type_b = value_b->type;
+
+ /* From GLSL 1.50 spec, page 56:
+ * "The relational operators greater than (>), less than (<), greater
+ * than or equal (>=), and less than or equal (<=) operate only on
+ * scalar integer and scalar floating-point expressions."
+ */
+ if (!type_a->is_numeric()
+ || !type_b->is_numeric()
+ || !type_a->is_scalar()
+ || !type_b->is_scalar()) {
+ _mesa_glsl_error(loc, state,
+ "Operands to relational operators must be scalar and "
+ "numeric");
+ return glsl_type::error_type;
+ }
+
+ /* "Either the operands' types must match, or the conversions from
+ * Section 4.1.10 "Implicit Conversions" will be applied to the integer
+ * operand, after which the types must match."
+ */
+ if (!apply_implicit_conversion(type_a, value_b, state)
+ && !apply_implicit_conversion(type_b, value_a, state)) {
+ _mesa_glsl_error(loc, state,
+ "Could not implicitly convert operands to "
+ "relational operator");
+ return glsl_type::error_type;
+ }
+ type_a = value_a->type;
+ type_b = value_b->type;
+
+ if (type_a->base_type != type_b->base_type) {
+ _mesa_glsl_error(loc, state, "base type mismatch");
+ return glsl_type::error_type;
+ }
+
+ /* "The result is scalar Boolean."
+ */
+ return glsl_type::bool_type;
+}
+
+
+/**
+ * Validates that a value can be assigned to a location with a specified type
+ *
+ * Validates that \c rhs can be assigned to some location. If the types are
+ * not an exact match but an automatic conversion is possible, \c rhs will be
+ * converted.
+ *
+ * \return
+ * \c NULL if \c rhs cannot be assigned to a location with type \c lhs_type.
+ * Otherwise the actual RHS to be assigned will be returned. This may be
+ * \c rhs, or it may be \c rhs after some type conversion.
+ *
+ * \note
+ * In addition to being used for assignments, this function is used to
+ * type-check return values.
+ */
+ir_rvalue *
+validate_assignment(struct _mesa_glsl_parse_state *state,
+ const glsl_type *lhs_type, ir_rvalue *rhs)
+{
+ const glsl_type *rhs_type = rhs->type;
+
+ /* If there is already some error in the RHS, just return it. Anything
+ * else will lead to an avalanche of error message back to the user.
+ */
+ if (rhs_type->is_error())
+ return rhs;
+
+ /* If the types are identical, the assignment can trivially proceed.
+ */
+ if (rhs_type == lhs_type)
+ return rhs;
+
+ /* If the array element types are the same and the size of the LHS is zero,
+ * the assignment is okay.
+ *
+ * Note: Whole-array assignments are not permitted in GLSL 1.10, but this
+ * is handled by ir_dereference::is_lvalue.
+ */
+ if (lhs_type->is_array() && rhs->type->is_array()
+ && (lhs_type->element_type() == rhs->type->element_type())
+ && (lhs_type->array_size() == 0)) {
+ return rhs;
+ }
+
+ /* Check for implicit conversion in GLSL 1.20 */
+ if (apply_implicit_conversion(lhs_type, rhs, state)) {
+ rhs_type = rhs->type;
+ if (rhs_type == lhs_type)
+ return rhs;
+ }
+
+ return NULL;
+}
+
+ir_rvalue *
+do_assignment(exec_list *instructions, struct _mesa_glsl_parse_state *state,
+ ir_rvalue *lhs, ir_rvalue *rhs,
+ YYLTYPE lhs_loc)
+{
+ void *ctx = state;
+ bool error_emitted = (lhs->type->is_error() || rhs->type->is_error());
+
+ if (!error_emitted) {
+ if (!lhs->is_lvalue()) {
+ _mesa_glsl_error(& lhs_loc, state, "non-lvalue in assignment");
+ error_emitted = true;
+ }
+
+ if (state->es_shader && lhs->type->is_array()) {
+ _mesa_glsl_error(&lhs_loc, state, "whole array assignment is not "
+ "allowed in GLSL ES 1.00.");
+ error_emitted = true;
+ }
+ }
+
+ ir_rvalue *new_rhs = validate_assignment(state, lhs->type, rhs);
+ if (new_rhs == NULL) {
+ _mesa_glsl_error(& lhs_loc, state, "type mismatch");
+ } else {
+ rhs = new_rhs;
+
+ /* If the LHS array was not declared with a size, it takes it size from
+ * the RHS. If the LHS is an l-value and a whole array, it must be a
+ * dereference of a variable. Any other case would require that the LHS
+ * is either not an l-value or not a whole array.
+ */
+ if (lhs->type->array_size() == 0) {
+ ir_dereference *const d = lhs->as_dereference();
+
+ assert(d != NULL);
+
+ ir_variable *const var = d->variable_referenced();
+
+ assert(var != NULL);
+
+ if (var->max_array_access >= unsigned(rhs->type->array_size())) {
+ /* FINISHME: This should actually log the location of the RHS. */
+ _mesa_glsl_error(& lhs_loc, state, "array size must be > %u due to "
+ "previous access",
+ var->max_array_access);
+ }
+
+ var->type = glsl_type::get_array_instance(lhs->type->element_type(),
+ rhs->type->array_size());
+ d->type = var->type;
+ }
+ }
+
+ /* Most callers of do_assignment (assign, add_assign, pre_inc/dec,
+ * but not post_inc) need the converted assigned value as an rvalue
+ * to handle things like:
+ *
+ * i = j += 1;
+ *
+ * So we always just store the computed value being assigned to a
+ * temporary and return a deref of that temporary. If the rvalue
+ * ends up not being used, the temp will get copy-propagated out.
+ */
+ ir_variable *var = new(ctx) ir_variable(rhs->type, "assignment_tmp",
+ ir_var_temporary);
+ ir_dereference_variable *deref_var = new(ctx) ir_dereference_variable(var);
+ instructions->push_tail(var);
+ instructions->push_tail(new(ctx) ir_assignment(deref_var,
+ rhs,
+ NULL));
+ deref_var = new(ctx) ir_dereference_variable(var);
+
+ if (!error_emitted)
+ instructions->push_tail(new(ctx) ir_assignment(lhs, deref_var, NULL));
+
+ return new(ctx) ir_dereference_variable(var);
+}
+
+static ir_rvalue *
+get_lvalue_copy(exec_list *instructions, ir_rvalue *lvalue)
+{
+ void *ctx = talloc_parent(lvalue);
+ ir_variable *var;
+
+ var = new(ctx) ir_variable(lvalue->type, "_post_incdec_tmp",
+ ir_var_temporary);
+ instructions->push_tail(var);
+ var->mode = ir_var_auto;
+
+ instructions->push_tail(new(ctx) ir_assignment(new(ctx) ir_dereference_variable(var),
+ lvalue, NULL));
+
+ /* Once we've created this temporary, mark it read only so it's no
+ * longer considered an lvalue.
+ */
+ var->read_only = true;
+
+ return new(ctx) ir_dereference_variable(var);
+}
+
+
+ir_rvalue *
+ast_node::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ (void) instructions;
+ (void) state;
+
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_expression::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ static const int operations[AST_NUM_OPERATORS] = {
+ -1, /* ast_assign doesn't convert to ir_expression. */
+ -1, /* ast_plus doesn't convert to ir_expression. */
+ ir_unop_neg,
+ ir_binop_add,
+ ir_binop_sub,
+ ir_binop_mul,
+ ir_binop_div,
+ ir_binop_mod,
+ ir_binop_lshift,
+ ir_binop_rshift,
+ ir_binop_less,
+ ir_binop_greater,
+ ir_binop_lequal,
+ ir_binop_gequal,
+ ir_binop_all_equal,
+ ir_binop_any_nequal,
+ ir_binop_bit_and,
+ ir_binop_bit_xor,
+ ir_binop_bit_or,
+ ir_unop_bit_not,
+ ir_binop_logic_and,
+ ir_binop_logic_xor,
+ ir_binop_logic_or,
+ ir_unop_logic_not,
+
+ /* Note: The following block of expression types actually convert
+ * to multiple IR instructions.
+ */
+ ir_binop_mul, /* ast_mul_assign */
+ ir_binop_div, /* ast_div_assign */
+ ir_binop_mod, /* ast_mod_assign */
+ ir_binop_add, /* ast_add_assign */
+ ir_binop_sub, /* ast_sub_assign */
+ ir_binop_lshift, /* ast_ls_assign */
+ ir_binop_rshift, /* ast_rs_assign */
+ ir_binop_bit_and, /* ast_and_assign */
+ ir_binop_bit_xor, /* ast_xor_assign */
+ ir_binop_bit_or, /* ast_or_assign */
+
+ -1, /* ast_conditional doesn't convert to ir_expression. */
+ ir_binop_add, /* ast_pre_inc. */
+ ir_binop_sub, /* ast_pre_dec. */
+ ir_binop_add, /* ast_post_inc. */
+ ir_binop_sub, /* ast_post_dec. */
+ -1, /* ast_field_selection doesn't conv to ir_expression. */
+ -1, /* ast_array_index doesn't convert to ir_expression. */
+ -1, /* ast_function_call doesn't conv to ir_expression. */
+ -1, /* ast_identifier doesn't convert to ir_expression. */
+ -1, /* ast_int_constant doesn't convert to ir_expression. */
+ -1, /* ast_uint_constant doesn't conv to ir_expression. */
+ -1, /* ast_float_constant doesn't conv to ir_expression. */
+ -1, /* ast_bool_constant doesn't conv to ir_expression. */
+ -1, /* ast_sequence doesn't convert to ir_expression. */
+ };
+ ir_rvalue *result = NULL;
+ ir_rvalue *op[3];
+ const struct glsl_type *type = glsl_type::error_type;
+ bool error_emitted = false;
+ YYLTYPE loc;
+
+ loc = this->get_location();
+
+ switch (this->oper) {
+ case ast_assign: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ result = do_assignment(instructions, state, op[0], op[1],
+ this->subexpressions[0]->get_location());
+ error_emitted = result->type->is_error();
+ type = result->type;
+ break;
+ }
+
+ case ast_plus:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ type = unary_arithmetic_result_type(op[0]->type, state, & loc);
+
+ error_emitted = type->is_error();
+
+ result = op[0];
+ break;
+
+ case ast_neg:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ type = unary_arithmetic_result_type(op[0]->type, state, & loc);
+
+ error_emitted = type->is_error();
+
+ result = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], NULL);
+ break;
+
+ case ast_add:
+ case ast_sub:
+ case ast_mul:
+ case ast_div:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ type = arithmetic_result_type(op[0], op[1],
+ (this->oper == ast_mul),
+ state, & loc);
+ error_emitted = type->is_error();
+
+ result = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+ break;
+
+ case ast_mod:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ type = modulus_result_type(op[0]->type, op[1]->type, state, & loc);
+
+ assert(operations[this->oper] == ir_binop_mod);
+
+ result = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+ error_emitted = type->is_error();
+ break;
+
+ case ast_lshift:
+ case ast_rshift:
+ _mesa_glsl_error(& loc, state, "FINISHME: implement bit-shift operators");
+ error_emitted = true;
+ break;
+
+ case ast_less:
+ case ast_greater:
+ case ast_lequal:
+ case ast_gequal:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ type = relational_result_type(op[0], op[1], state, & loc);
+
+ /* The relational operators must either generate an error or result
+ * in a scalar boolean. See page 57 of the GLSL 1.50 spec.
+ */
+ assert(type->is_error()
+ || ((type->base_type == GLSL_TYPE_BOOL)
+ && type->is_scalar()));
+
+ result = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+ error_emitted = type->is_error();
+ break;
+
+ case ast_nequal:
+ case ast_equal:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ /* From page 58 (page 64 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "The equality operators equal (==), and not equal (!=)
+ * operate on all types. They result in a scalar Boolean. If
+ * the operand types do not match, then there must be a
+ * conversion from Section 4.1.10 "Implicit Conversions"
+ * applied to one operand that can make them match, in which
+ * case this conversion is done."
+ */
+ if ((!apply_implicit_conversion(op[0]->type, op[1], state)
+ && !apply_implicit_conversion(op[1]->type, op[0], state))
+ || (op[0]->type != op[1]->type)) {
+ _mesa_glsl_error(& loc, state, "operands of `%s' must have the same "
+ "type", (this->oper == ast_equal) ? "==" : "!=");
+ error_emitted = true;
+ } else if ((state->language_version <= 110)
+ && (op[0]->type->is_array() || op[1]->type->is_array())) {
+ _mesa_glsl_error(& loc, state, "array comparisons forbidden in "
+ "GLSL 1.10");
+ error_emitted = true;
+ }
+
+ result = new(ctx) ir_expression(operations[this->oper], glsl_type::bool_type,
+ op[0], op[1]);
+ type = glsl_type::bool_type;
+
+ assert(result->type == glsl_type::bool_type);
+ break;
+
+ case ast_bit_and:
+ case ast_bit_xor:
+ case ast_bit_or:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ if (state->language_version < 130) {
+ _mesa_glsl_error(&loc, state, "bit-wise operations require GLSL 1.30");
+ error_emitted = true;
+ }
+
+ if (!op[0]->type->is_integer()) {
+ _mesa_glsl_error(&loc, state, "LHS of `%s' must be an integer",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ if (!op[1]->type->is_integer()) {
+ _mesa_glsl_error(&loc, state, "RHS of `%s' must be an integer",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ if (op[0]->type->base_type != op[1]->type->base_type) {
+ _mesa_glsl_error(&loc, state, "operands of `%s' must have the same "
+ "base type", operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ if (op[0]->type->is_vector() && op[1]->type->is_vector()
+ && op[0]->type->vector_elements != op[1]->type->vector_elements) {
+ _mesa_glsl_error(&loc, state, "operands of `%s' cannot be vectors of "
+ "different sizes", operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ type = op[0]->type->is_scalar() ? op[1]->type : op[0]->type;
+ result = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+ error_emitted = op[0]->type->is_error() || op[1]->type->is_error();
+ break;
+
+ case ast_bit_not:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ if (state->language_version < 130) {
+ _mesa_glsl_error(&loc, state, "bit-wise operations require GLSL 1.30");
+ error_emitted = true;
+ }
+
+ if (!op[0]->type->is_integer()) {
+ _mesa_glsl_error(&loc, state, "operand of `~' must be an integer");
+ error_emitted = true;
+ }
+
+ type = op[0]->type;
+ result = new(ctx) ir_expression(ir_unop_bit_not, type, op[0], NULL);
+ break;
+
+ case ast_logic_and: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ if (!op[0]->type->is_boolean() || !op[0]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[0]->get_location();
+
+ _mesa_glsl_error(& loc, state, "LHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ ir_constant *op0_const = op[0]->constant_expression_value();
+ if (op0_const) {
+ if (op0_const->value.b[0]) {
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+ result = op[1];
+ } else {
+ result = op0_const;
+ }
+ type = glsl_type::bool_type;
+ } else {
+ ir_variable *const tmp = new(ctx) ir_variable(glsl_type::bool_type,
+ "and_tmp",
+ ir_var_temporary);
+ instructions->push_tail(tmp);
+
+ ir_if *const stmt = new(ctx) ir_if(op[0]);
+ instructions->push_tail(stmt);
+
+ op[1] = this->subexpressions[1]->hir(&stmt->then_instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ ir_dereference *const then_deref = new(ctx) ir_dereference_variable(tmp);
+ ir_assignment *const then_assign =
+ new(ctx) ir_assignment(then_deref, op[1], NULL);
+ stmt->then_instructions.push_tail(then_assign);
+
+ ir_dereference *const else_deref = new(ctx) ir_dereference_variable(tmp);
+ ir_assignment *const else_assign =
+ new(ctx) ir_assignment(else_deref, new(ctx) ir_constant(false), NULL);
+ stmt->else_instructions.push_tail(else_assign);
+
+ result = new(ctx) ir_dereference_variable(tmp);
+ type = tmp->type;
+ }
+ break;
+ }
+
+ case ast_logic_or: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ if (!op[0]->type->is_boolean() || !op[0]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[0]->get_location();
+
+ _mesa_glsl_error(& loc, state, "LHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ ir_constant *op0_const = op[0]->constant_expression_value();
+ if (op0_const) {
+ if (op0_const->value.b[0]) {
+ result = op0_const;
+ } else {
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+ result = op[1];
+ }
+ type = glsl_type::bool_type;
+ } else {
+ ir_variable *const tmp = new(ctx) ir_variable(glsl_type::bool_type,
+ "or_tmp",
+ ir_var_temporary);
+ instructions->push_tail(tmp);
+
+ ir_if *const stmt = new(ctx) ir_if(op[0]);
+ instructions->push_tail(stmt);
+
+ op[1] = this->subexpressions[1]->hir(&stmt->else_instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state, "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ ir_dereference *const then_deref = new(ctx) ir_dereference_variable(tmp);
+ ir_assignment *const then_assign =
+ new(ctx) ir_assignment(then_deref, new(ctx) ir_constant(true), NULL);
+ stmt->then_instructions.push_tail(then_assign);
+
+ ir_dereference *const else_deref = new(ctx) ir_dereference_variable(tmp);
+ ir_assignment *const else_assign =
+ new(ctx) ir_assignment(else_deref, op[1], NULL);
+ stmt->else_instructions.push_tail(else_assign);
+
+ result = new(ctx) ir_dereference_variable(tmp);
+ type = tmp->type;
+ }
+ break;
+ }
+
+ case ast_logic_xor:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+
+ result = new(ctx) ir_expression(operations[this->oper], glsl_type::bool_type,
+ op[0], op[1]);
+ type = glsl_type::bool_type;
+ break;
+
+ case ast_logic_not:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ if (!op[0]->type->is_boolean() || !op[0]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[0]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "operand of `!' must be scalar boolean");
+ error_emitted = true;
+ }
+
+ result = new(ctx) ir_expression(operations[this->oper], glsl_type::bool_type,
+ op[0], NULL);
+ type = glsl_type::bool_type;
+ break;
+
+ case ast_mul_assign:
+ case ast_div_assign:
+ case ast_add_assign:
+ case ast_sub_assign: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ type = arithmetic_result_type(op[0], op[1],
+ (this->oper == ast_mul_assign),
+ state, & loc);
+
+ ir_rvalue *temp_rhs = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+
+ result = do_assignment(instructions, state,
+ op[0]->clone(ctx, NULL), temp_rhs,
+ this->subexpressions[0]->get_location());
+ type = result->type;
+ error_emitted = (op[0]->type->is_error());
+
+ /* GLSL 1.10 does not allow array assignment. However, we don't have to
+ * explicitly test for this because none of the binary expression
+ * operators allow array operands either.
+ */
+
+ break;
+ }
+
+ case ast_mod_assign: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ type = modulus_result_type(op[0]->type, op[1]->type, state, & loc);
+
+ assert(operations[this->oper] == ir_binop_mod);
+
+ ir_rvalue *temp_rhs;
+ temp_rhs = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+
+ result = do_assignment(instructions, state,
+ op[0]->clone(ctx, NULL), temp_rhs,
+ this->subexpressions[0]->get_location());
+ type = result->type;
+ error_emitted = type->is_error();
+ break;
+ }
+
+ case ast_ls_assign:
+ case ast_rs_assign:
+ _mesa_glsl_error(& loc, state,
+ "FINISHME: implement bit-shift assignment operators");
+ error_emitted = true;
+ break;
+
+ case ast_and_assign:
+ case ast_xor_assign:
+ case ast_or_assign:
+ _mesa_glsl_error(& loc, state,
+ "FINISHME: implement logic assignment operators");
+ error_emitted = true;
+ break;
+
+ case ast_conditional: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ /* From page 59 (page 65 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "The ternary selection operator (?:). It operates on three
+ * expressions (exp1 ? exp2 : exp3). This operator evaluates the
+ * first expression, which must result in a scalar Boolean."
+ */
+ if (!op[0]->type->is_boolean() || !op[0]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[0]->get_location();
+
+ _mesa_glsl_error(& loc, state, "?: condition must be scalar boolean");
+ error_emitted = true;
+ }
+
+ /* The :? operator is implemented by generating an anonymous temporary
+ * followed by an if-statement. The last instruction in each branch of
+ * the if-statement assigns a value to the anonymous temporary. This
+ * temporary is the r-value of the expression.
+ */
+ exec_list then_instructions;
+ exec_list else_instructions;
+
+ op[1] = this->subexpressions[1]->hir(&then_instructions, state);
+ op[2] = this->subexpressions[2]->hir(&else_instructions, state);
+
+ /* From page 59 (page 65 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "The second and third expressions can be any type, as
+ * long their types match, or there is a conversion in
+ * Section 4.1.10 "Implicit Conversions" that can be applied
+ * to one of the expressions to make their types match. This
+ * resulting matching type is the type of the entire
+ * expression."
+ */
+ if ((!apply_implicit_conversion(op[1]->type, op[2], state)
+ && !apply_implicit_conversion(op[2]->type, op[1], state))
+ || (op[1]->type != op[2]->type)) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state, "Second and third operands of ?: "
+ "operator must have matching types.");
+ error_emitted = true;
+ type = glsl_type::error_type;
+ } else {
+ type = op[1]->type;
+ }
+
+ /* From page 33 (page 39 of the PDF) of the GLSL 1.10 spec:
+ *
+ * "The second and third expressions must be the same type, but can
+ * be of any type other than an array."
+ */
+ if ((state->language_version <= 110) && type->is_array()) {
+ _mesa_glsl_error(& loc, state, "Second and third operands of ?: "
+ "operator must not be arrays.");
+ error_emitted = true;
+ }
+
+ ir_constant *cond_val = op[0]->constant_expression_value();
+ ir_constant *then_val = op[1]->constant_expression_value();
+ ir_constant *else_val = op[2]->constant_expression_value();
+
+ if (then_instructions.is_empty()
+ && else_instructions.is_empty()
+ && (cond_val != NULL) && (then_val != NULL) && (else_val != NULL)) {
+ result = (cond_val->value.b[0]) ? then_val : else_val;
+ } else {
+ ir_variable *const tmp =
+ new(ctx) ir_variable(type, "conditional_tmp", ir_var_temporary);
+ instructions->push_tail(tmp);
+
+ ir_if *const stmt = new(ctx) ir_if(op[0]);
+ instructions->push_tail(stmt);
+
+ then_instructions.move_nodes_to(& stmt->then_instructions);
+ ir_dereference *const then_deref =
+ new(ctx) ir_dereference_variable(tmp);
+ ir_assignment *const then_assign =
+ new(ctx) ir_assignment(then_deref, op[1], NULL);
+ stmt->then_instructions.push_tail(then_assign);
+
+ else_instructions.move_nodes_to(& stmt->else_instructions);
+ ir_dereference *const else_deref =
+ new(ctx) ir_dereference_variable(tmp);
+ ir_assignment *const else_assign =
+ new(ctx) ir_assignment(else_deref, op[2], NULL);
+ stmt->else_instructions.push_tail(else_assign);
+
+ result = new(ctx) ir_dereference_variable(tmp);
+ }
+ break;
+ }
+
+ case ast_pre_inc:
+ case ast_pre_dec: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ if (op[0]->type->base_type == GLSL_TYPE_FLOAT)
+ op[1] = new(ctx) ir_constant(1.0f);
+ else
+ op[1] = new(ctx) ir_constant(1);
+
+ type = arithmetic_result_type(op[0], op[1], false, state, & loc);
+
+ ir_rvalue *temp_rhs;
+ temp_rhs = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+
+ result = do_assignment(instructions, state,
+ op[0]->clone(ctx, NULL), temp_rhs,
+ this->subexpressions[0]->get_location());
+ type = result->type;
+ error_emitted = op[0]->type->is_error();
+ break;
+ }
+
+ case ast_post_inc:
+ case ast_post_dec: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ if (op[0]->type->base_type == GLSL_TYPE_FLOAT)
+ op[1] = new(ctx) ir_constant(1.0f);
+ else
+ op[1] = new(ctx) ir_constant(1);
+
+ error_emitted = op[0]->type->is_error() || op[1]->type->is_error();
+
+ type = arithmetic_result_type(op[0], op[1], false, state, & loc);
+
+ ir_rvalue *temp_rhs;
+ temp_rhs = new(ctx) ir_expression(operations[this->oper], type,
+ op[0], op[1]);
+
+ /* Get a temporary of a copy of the lvalue before it's modified.
+ * This may get thrown away later.
+ */
+ result = get_lvalue_copy(instructions, op[0]->clone(ctx, NULL));
+
+ (void)do_assignment(instructions, state,
+ op[0]->clone(ctx, NULL), temp_rhs,
+ this->subexpressions[0]->get_location());
+
+ type = result->type;
+ error_emitted = op[0]->type->is_error();
+ break;
+ }
+
+ case ast_field_selection:
+ result = _mesa_ast_field_selection_to_hir(this, instructions, state);
+ type = result->type;
+ break;
+
+ case ast_array_index: {
+ YYLTYPE index_loc = subexpressions[1]->get_location();
+
+ op[0] = subexpressions[0]->hir(instructions, state);
+ op[1] = subexpressions[1]->hir(instructions, state);
+
+ error_emitted = op[0]->type->is_error() || op[1]->type->is_error();
+
+ ir_rvalue *const array = op[0];
+
+ result = new(ctx) ir_dereference_array(op[0], op[1]);
+
+ /* Do not use op[0] after this point. Use array.
+ */
+ op[0] = NULL;
+
+
+ if (error_emitted)
+ break;
+
+ if (!array->type->is_array()
+ && !array->type->is_matrix()
+ && !array->type->is_vector()) {
+ _mesa_glsl_error(& index_loc, state,
+ "cannot dereference non-array / non-matrix / "
+ "non-vector");
+ error_emitted = true;
+ }
+
+ if (!op[1]->type->is_integer()) {
+ _mesa_glsl_error(& index_loc, state,
+ "array index must be integer type");
+ error_emitted = true;
+ } else if (!op[1]->type->is_scalar()) {
+ _mesa_glsl_error(& index_loc, state,
+ "array index must be scalar");
+ error_emitted = true;
+ }
+
+ /* If the array index is a constant expression and the array has a
+ * declared size, ensure that the access is in-bounds. If the array
+ * index is not a constant expression, ensure that the array has a
+ * declared size.
+ */
+ ir_constant *const const_index = op[1]->constant_expression_value();
+ if (const_index != NULL) {
+ const int idx = const_index->value.i[0];
+ const char *type_name;
+ unsigned bound = 0;
+
+ if (array->type->is_matrix()) {
+ type_name = "matrix";
+ } else if (array->type->is_vector()) {
+ type_name = "vector";
+ } else {
+ type_name = "array";
+ }
+
+ /* From page 24 (page 30 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "It is illegal to declare an array with a size, and then
+ * later (in the same shader) index the same array with an
+ * integral constant expression greater than or equal to the
+ * declared size. It is also illegal to index an array with a
+ * negative constant expression."
+ */
+ if (array->type->is_matrix()) {
+ if (array->type->row_type()->vector_elements <= idx) {
+ bound = array->type->row_type()->vector_elements;
+ }
+ } else if (array->type->is_vector()) {
+ if (array->type->vector_elements <= idx) {
+ bound = array->type->vector_elements;
+ }
+ } else {
+ if ((array->type->array_size() > 0)
+ && (array->type->array_size() <= idx)) {
+ bound = array->type->array_size();
+ }
+ }
+
+ if (bound > 0) {
+ _mesa_glsl_error(& loc, state, "%s index must be < %u",
+ type_name, bound);
+ error_emitted = true;
+ } else if (idx < 0) {
+ _mesa_glsl_error(& loc, state, "%s index must be >= 0",
+ type_name);
+ error_emitted = true;
+ }
+
+ if (array->type->is_array()) {
+ /* If the array is a variable dereference, it dereferences the
+ * whole array, by definition. Use this to get the variable.
+ *
+ * FINISHME: Should some methods for getting / setting / testing
+ * FINISHME: array access limits be added to ir_dereference?
+ */
+ ir_variable *const v = array->whole_variable_referenced();
+ if ((v != NULL) && (unsigned(idx) > v->max_array_access))
+ v->max_array_access = idx;
+ }
+ } else if (array->type->array_size() == 0) {
+ _mesa_glsl_error(&loc, state, "unsized array index must be constant");
+ } else {
+ if (array->type->is_array()) {
+ /* whole_variable_referenced can return NULL if the array is a
+ * member of a structure. In this case it is safe to not update
+ * the max_array_access field because it is never used for fields
+ * of structures.
+ */
+ ir_variable *v = array->whole_variable_referenced();
+ if (v != NULL)
+ v->max_array_access = array->type->array_size();
+ }
+ }
+
+ if (error_emitted)
+ result->type = glsl_type::error_type;
+
+ type = result->type;
+ break;
+ }
+
+ case ast_function_call:
+ /* Should *NEVER* get here. ast_function_call should always be handled
+ * by ast_function_expression::hir.
+ */
+ assert(0);
+ break;
+
+ case ast_identifier: {
+ /* ast_identifier can appear several places in a full abstract syntax
+ * tree. This particular use must be at location specified in the grammar
+ * as 'variable_identifier'.
+ */
+ ir_variable *var =
+ state->symbols->get_variable(this->primary_expression.identifier);
+
+ result = new(ctx) ir_dereference_variable(var);
+
+ if (var != NULL) {
+ type = result->type;
+ } else {
+ _mesa_glsl_error(& loc, state, "`%s' undeclared",
+ this->primary_expression.identifier);
+
+ error_emitted = true;
+ }
+ break;
+ }
+
+ case ast_int_constant:
+ type = glsl_type::int_type;
+ result = new(ctx) ir_constant(this->primary_expression.int_constant);
+ break;
+
+ case ast_uint_constant:
+ type = glsl_type::uint_type;
+ result = new(ctx) ir_constant(this->primary_expression.uint_constant);
+ break;
+
+ case ast_float_constant:
+ type = glsl_type::float_type;
+ result = new(ctx) ir_constant(this->primary_expression.float_constant);
+ break;
+
+ case ast_bool_constant:
+ type = glsl_type::bool_type;
+ result = new(ctx) ir_constant(bool(this->primary_expression.bool_constant));
+ break;
+
+ case ast_sequence: {
+ /* It should not be possible to generate a sequence in the AST without
+ * any expressions in it.
+ */
+ assert(!this->expressions.is_empty());
+
+ /* The r-value of a sequence is the last expression in the sequence. If
+ * the other expressions in the sequence do not have side-effects (and
+ * therefore add instructions to the instruction list), they get dropped
+ * on the floor.
+ */
+ foreach_list_typed (ast_node, ast, link, &this->expressions)
+ result = ast->hir(instructions, state);
+
+ type = result->type;
+
+ /* Any errors should have already been emitted in the loop above.
+ */
+ error_emitted = true;
+ break;
+ }
+ }
+
+ if (type->is_error() && !error_emitted)
+ _mesa_glsl_error(& loc, state, "type mismatch");
+
+ return result;
+}
+
+
+ir_rvalue *
+ast_expression_statement::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ /* It is possible to have expression statements that don't have an
+ * expression. This is the solitary semicolon:
+ *
+ * for (i = 0; i < 5; i++)
+ * ;
+ *
+ * In this case the expression will be NULL. Test for NULL and don't do
+ * anything in that case.
+ */
+ if (expression != NULL)
+ expression->hir(instructions, state);
+
+ /* Statements do not have r-values.
+ */
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_compound_statement::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ if (new_scope)
+ state->symbols->push_scope();
+
+ foreach_list_typed (ast_node, ast, link, &this->statements)
+ ast->hir(instructions, state);
+
+ if (new_scope)
+ state->symbols->pop_scope();
+
+ /* Compound statements do not have r-values.
+ */
+ return NULL;
+}
+
+
+static const glsl_type *
+process_array_type(YYLTYPE *loc, const glsl_type *base, ast_node *array_size,
+ struct _mesa_glsl_parse_state *state)
+{
+ unsigned length = 0;
+
+ /* FINISHME: Reject delcarations of multidimensional arrays. */
+
+ if (array_size != NULL) {
+ exec_list dummy_instructions;
+ ir_rvalue *const ir = array_size->hir(& dummy_instructions, state);
+ YYLTYPE loc = array_size->get_location();
+
+ /* FINISHME: Verify that the grammar forbids side-effects in array
+ * FINISHME: sizes. i.e., 'vec4 [x = 12] data'
+ */
+ assert(dummy_instructions.is_empty());
+
+ if (ir != NULL) {
+ if (!ir->type->is_integer()) {
+ _mesa_glsl_error(& loc, state, "array size must be integer type");
+ } else if (!ir->type->is_scalar()) {
+ _mesa_glsl_error(& loc, state, "array size must be scalar type");
+ } else {
+ ir_constant *const size = ir->constant_expression_value();
+
+ if (size == NULL) {
+ _mesa_glsl_error(& loc, state, "array size must be a "
+ "constant valued expression");
+ } else if (size->value.i[0] <= 0) {
+ _mesa_glsl_error(& loc, state, "array size must be > 0");
+ } else {
+ assert(size->type == ir->type);
+ length = size->value.u[0];
+ }
+ }
+ }
+ } else if (state->es_shader) {
+ /* Section 10.17 of the GLSL ES 1.00 specification states that unsized
+ * array declarations have been removed from the language.
+ */
+ _mesa_glsl_error(loc, state, "unsized array declarations are not "
+ "allowed in GLSL ES 1.00.");
+ }
+
+ return glsl_type::get_array_instance(base, length);
+}
+
+
+const glsl_type *
+ast_type_specifier::glsl_type(const char **name,
+ struct _mesa_glsl_parse_state *state) const
+{
+ const struct glsl_type *type;
+
+ type = state->symbols->get_type(this->type_name);
+ *name = this->type_name;
+
+ if (this->is_array) {
+ YYLTYPE loc = this->get_location();
+ type = process_array_type(&loc, type, this->array_size, state);
+ }
+
+ return type;
+}
+
+
+static void
+apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
+ ir_variable *var,
+ struct _mesa_glsl_parse_state *state,
+ YYLTYPE *loc)
+{
+ if (qual->invariant)
+ var->invariant = 1;
+
+ /* FINISHME: Mark 'in' variables at global scope as read-only. */
+ if (qual->constant || qual->attribute || qual->uniform
+ || (qual->varying && (state->target == fragment_shader)))
+ var->read_only = 1;
+
+ if (qual->centroid)
+ var->centroid = 1;
+
+ if (qual->attribute && state->target != vertex_shader) {
+ var->type = glsl_type::error_type;
+ _mesa_glsl_error(loc, state,
+ "`attribute' variables may not be declared in the "
+ "%s shader",
+ _mesa_glsl_shader_target_name(state->target));
+ }
+
+ /* From page 25 (page 31 of the PDF) of the GLSL 1.10 spec:
+ *
+ * "The varying qualifier can be used only with the data types
+ * float, vec2, vec3, vec4, mat2, mat3, and mat4, or arrays of
+ * these."
+ */
+ if (qual->varying) {
+ const glsl_type *non_array_type;
+
+ if (var->type && var->type->is_array())
+ non_array_type = var->type->fields.array;
+ else
+ non_array_type = var->type;
+
+ if (non_array_type && non_array_type->base_type != GLSL_TYPE_FLOAT) {
+ var->type = glsl_type::error_type;
+ _mesa_glsl_error(loc, state,
+ "varying variables must be of base type float");
+ }
+ }
+
+ /* If there is no qualifier that changes the mode of the variable, leave
+ * the setting alone.
+ */
+ if (qual->in && qual->out)
+ var->mode = ir_var_inout;
+ else if (qual->attribute || qual->in
+ || (qual->varying && (state->target == fragment_shader)))
+ var->mode = ir_var_in;
+ else if (qual->out || (qual->varying && (state->target == vertex_shader)))
+ var->mode = ir_var_out;
+ else if (qual->uniform)
+ var->mode = ir_var_uniform;
+
+ if (qual->flat)
+ var->interpolation = ir_var_flat;
+ else if (qual->noperspective)
+ var->interpolation = ir_var_noperspective;
+ else
+ var->interpolation = ir_var_smooth;
+
+ var->pixel_center_integer = qual->pixel_center_integer;
+ var->origin_upper_left = qual->origin_upper_left;
+ if ((qual->origin_upper_left || qual->pixel_center_integer)
+ && (strcmp(var->name, "gl_FragCoord") != 0)) {
+ const char *const qual_string = (qual->origin_upper_left)
+ ? "origin_upper_left" : "pixel_center_integer";
+
+ _mesa_glsl_error(loc, state,
+ "layout qualifier `%s' can only be applied to "
+ "fragment shader input `gl_FragCoord'",
+ qual_string);
+ }
+
+ if (var->type->is_array() && state->language_version != 110) {
+ var->array_lvalue = true;
+ }
+}
+
+
+ir_rvalue *
+ast_declarator_list::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ const struct glsl_type *decl_type;
+ const char *type_name = NULL;
+ ir_rvalue *result = NULL;
+ YYLTYPE loc = this->get_location();
+
+ /* From page 46 (page 52 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "To ensure that a particular output variable is invariant, it is
+ * necessary to use the invariant qualifier. It can either be used to
+ * qualify a previously declared variable as being invariant
+ *
+ * invariant gl_Position; // make existing gl_Position be invariant"
+ *
+ * In these cases the parser will set the 'invariant' flag in the declarator
+ * list, and the type will be NULL.
+ */
+ if (this->invariant) {
+ assert(this->type == NULL);
+
+ if (state->current_function != NULL) {
+ _mesa_glsl_error(& loc, state,
+ "All uses of `invariant' keyword must be at global "
+ "scope\n");
+ }
+
+ foreach_list_typed (ast_declaration, decl, link, &this->declarations) {
+ assert(!decl->is_array);
+ assert(decl->array_size == NULL);
+ assert(decl->initializer == NULL);
+
+ ir_variable *const earlier =
+ state->symbols->get_variable(decl->identifier);
+ if (earlier == NULL) {
+ _mesa_glsl_error(& loc, state,
+ "Undeclared variable `%s' cannot be marked "
+ "invariant\n", decl->identifier);
+ } else if ((state->target == vertex_shader)
+ && (earlier->mode != ir_var_out)) {
+ _mesa_glsl_error(& loc, state,
+ "`%s' cannot be marked invariant, vertex shader "
+ "outputs only\n", decl->identifier);
+ } else if ((state->target == fragment_shader)
+ && (earlier->mode != ir_var_in)) {
+ _mesa_glsl_error(& loc, state,
+ "`%s' cannot be marked invariant, fragment shader "
+ "inputs only\n", decl->identifier);
+ } else {
+ earlier->invariant = true;
+ }
+ }
+
+ /* Invariant redeclarations do not have r-values.
+ */
+ return NULL;
+ }
+
+ assert(this->type != NULL);
+ assert(!this->invariant);
+
+ /* The type specifier may contain a structure definition. Process that
+ * before any of the variable declarations.
+ */
+ (void) this->type->specifier->hir(instructions, state);
+
+ decl_type = this->type->specifier->glsl_type(& type_name, state);
+ if (this->declarations.is_empty()) {
+ /* The only valid case where the declaration list can be empty is when
+ * the declaration is setting the default precision of a built-in type
+ * (e.g., 'precision highp vec4;').
+ */
+
+ if (decl_type != NULL) {
+ } else {
+ _mesa_glsl_error(& loc, state, "incomplete declaration");
+ }
+ }
+
+ foreach_list_typed (ast_declaration, decl, link, &this->declarations) {
+ const struct glsl_type *var_type;
+ ir_variable *var;
+
+ /* FINISHME: Emit a warning if a variable declaration shadows a
+ * FINISHME: declaration at a higher scope.
+ */
+
+ if ((decl_type == NULL) || decl_type->is_void()) {
+ if (type_name != NULL) {
+ _mesa_glsl_error(& loc, state,
+ "invalid type `%s' in declaration of `%s'",
+ type_name, decl->identifier);
+ } else {
+ _mesa_glsl_error(& loc, state,
+ "invalid type in declaration of `%s'",
+ decl->identifier);
+ }
+ continue;
+ }
+
+ if (decl->is_array) {
+ var_type = process_array_type(&loc, decl_type, decl->array_size,
+ state);
+ } else {
+ var_type = decl_type;
+ }
+
+ var = new(ctx) ir_variable(var_type, decl->identifier, ir_var_auto);
+
+ /* From page 22 (page 28 of the PDF) of the GLSL 1.10 specification;
+ *
+ * "Global variables can only use the qualifiers const,
+ * attribute, uni form, or varying. Only one may be
+ * specified.
+ *
+ * Local variables can only use the qualifier const."
+ *
+ * This is relaxed in GLSL 1.30.
+ */
+ if (state->language_version < 120) {
+ if (this->type->qualifier.out) {
+ _mesa_glsl_error(& loc, state,
+ "`out' qualifier in declaration of `%s' "
+ "only valid for function parameters in GLSL 1.10.",
+ decl->identifier);
+ }
+ if (this->type->qualifier.in) {
+ _mesa_glsl_error(& loc, state,
+ "`in' qualifier in declaration of `%s' "
+ "only valid for function parameters in GLSL 1.10.",
+ decl->identifier);
+ }
+ /* FINISHME: Test for other invalid qualifiers. */
+ }
+
+ apply_type_qualifier_to_variable(& this->type->qualifier, var, state,
+ & loc);
+
+ if (this->type->qualifier.invariant) {
+ if ((state->target == vertex_shader) && !(var->mode == ir_var_out ||
+ var->mode == ir_var_inout)) {
+ /* FINISHME: Note that this doesn't work for invariant on
+ * a function signature outval
+ */
+ _mesa_glsl_error(& loc, state,
+ "`%s' cannot be marked invariant, vertex shader "
+ "outputs only\n", var->name);
+ } else if ((state->target == fragment_shader) &&
+ !(var->mode == ir_var_in || var->mode == ir_var_inout)) {
+ /* FINISHME: Note that this doesn't work for invariant on
+ * a function signature inval
+ */
+ _mesa_glsl_error(& loc, state,
+ "`%s' cannot be marked invariant, fragment shader "
+ "inputs only\n", var->name);
+ }
+ }
+
+ if (state->current_function != NULL) {
+ const char *mode = NULL;
+ const char *extra = "";
+
+ /* There is no need to check for 'inout' here because the parser will
+ * only allow that in function parameter lists.
+ */
+ if (this->type->qualifier.attribute) {
+ mode = "attribute";
+ } else if (this->type->qualifier.uniform) {
+ mode = "uniform";
+ } else if (this->type->qualifier.varying) {
+ mode = "varying";
+ } else if (this->type->qualifier.in) {
+ mode = "in";
+ extra = " or in function parameter list";
+ } else if (this->type->qualifier.out) {
+ mode = "out";
+ extra = " or in function parameter list";
+ }
+
+ if (mode) {
+ _mesa_glsl_error(& loc, state,
+ "%s variable `%s' must be declared at "
+ "global scope%s",
+ mode, var->name, extra);
+ }
+ } else if (var->mode == ir_var_in) {
+ if (state->target == vertex_shader) {
+ bool error_emitted = false;
+
+ /* From page 31 (page 37 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "Vertex shader inputs can only be float, floating-point
+ * vectors, matrices, signed and unsigned integers and integer
+ * vectors. Vertex shader inputs can also form arrays of these
+ * types, but not structures."
+ *
+ * From page 31 (page 27 of the PDF) of the GLSL 1.30 spec:
+ *
+ * "Vertex shader inputs can only be float, floating-point
+ * vectors, matrices, signed and unsigned integers and integer
+ * vectors. They cannot be arrays or structures."
+ *
+ * From page 23 (page 29 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "The attribute qualifier can be used only with float,
+ * floating-point vectors, and matrices. Attribute variables
+ * cannot be declared as arrays or structures."
+ */
+ const glsl_type *check_type = var->type->is_array()
+ ? var->type->fields.array : var->type;
+
+ switch (check_type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ break;
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ if (state->language_version > 120)
+ break;
+ /* FALLTHROUGH */
+ default:
+ _mesa_glsl_error(& loc, state,
+ "vertex shader input / attribute cannot have "
+ "type %s`%s'",
+ var->type->is_array() ? "array of " : "",
+ check_type->name);
+ error_emitted = true;
+ }
+
+ if (!error_emitted && (state->language_version <= 130)
+ && var->type->is_array()) {
+ _mesa_glsl_error(& loc, state,
+ "vertex shader input / attribute cannot have "
+ "array type");
+ error_emitted = true;
+ }
+ }
+ }
+
+ /* Process the initializer and add its instructions to a temporary
+ * list. This list will be added to the instruction stream (below) after
+ * the declaration is added. This is done because in some cases (such as
+ * redeclarations) the declaration may not actually be added to the
+ * instruction stream.
+ */
+ exec_list initializer_instructions;
+ if (decl->initializer != NULL) {
+ YYLTYPE initializer_loc = decl->initializer->get_location();
+
+ /* From page 24 (page 30 of the PDF) of the GLSL 1.10 spec:
+ *
+ * "All uniform variables are read-only and are initialized either
+ * directly by an application via API commands, or indirectly by
+ * OpenGL."
+ */
+ if ((state->language_version <= 110)
+ && (var->mode == ir_var_uniform)) {
+ _mesa_glsl_error(& initializer_loc, state,
+ "cannot initialize uniforms in GLSL 1.10");
+ }
+
+ if (var->type->is_sampler()) {
+ _mesa_glsl_error(& initializer_loc, state,
+ "cannot initialize samplers");
+ }
+
+ if ((var->mode == ir_var_in) && (state->current_function == NULL)) {
+ _mesa_glsl_error(& initializer_loc, state,
+ "cannot initialize %s shader input / %s",
+ _mesa_glsl_shader_target_name(state->target),
+ (state->target == vertex_shader)
+ ? "attribute" : "varying");
+ }
+
+ ir_dereference *const lhs = new(ctx) ir_dereference_variable(var);
+ ir_rvalue *rhs = decl->initializer->hir(&initializer_instructions,
+ state);
+
+ /* Calculate the constant value if this is a const or uniform
+ * declaration.
+ */
+ if (this->type->qualifier.constant || this->type->qualifier.uniform) {
+ ir_rvalue *new_rhs = validate_assignment(state, var->type, rhs);
+ if (new_rhs != NULL) {
+ rhs = new_rhs;
+
+ ir_constant *constant_value = rhs->constant_expression_value();
+ if (!constant_value) {
+ _mesa_glsl_error(& initializer_loc, state,
+ "initializer of %s variable `%s' must be a "
+ "constant expression",
+ (this->type->qualifier.constant)
+ ? "const" : "uniform",
+ decl->identifier);
+ if (var->type->is_numeric()) {
+ /* Reduce cascading errors. */
+ var->constant_value = ir_constant::zero(ctx, var->type);
+ }
+ } else {
+ rhs = constant_value;
+ var->constant_value = constant_value;
+ }
+ } else {
+ _mesa_glsl_error(&initializer_loc, state,
+ "initializer of type %s cannot be assigned to "
+ "variable of type %s",
+ rhs->type->name, var->type->name);
+ if (var->type->is_numeric()) {
+ /* Reduce cascading errors. */
+ var->constant_value = ir_constant::zero(ctx, var->type);
+ }
+ }
+ }
+
+ if (rhs && !rhs->type->is_error()) {
+ bool temp = var->read_only;
+ if (this->type->qualifier.constant)
+ var->read_only = false;
+
+ /* Never emit code to initialize a uniform.
+ */
+ if (!this->type->qualifier.uniform)
+ result = do_assignment(&initializer_instructions, state,
+ lhs, rhs,
+ this->get_location());
+ var->read_only = temp;
+ }
+ }
+
+ /* From page 23 (page 29 of the PDF) of the GLSL 1.10 spec:
+ *
+ * "It is an error to write to a const variable outside of
+ * its declaration, so they must be initialized when
+ * declared."
+ */
+ if (this->type->qualifier.constant && decl->initializer == NULL) {
+ _mesa_glsl_error(& loc, state,
+ "const declaration of `%s' must be initialized");
+ }
+
+ /* Check if this declaration is actually a re-declaration, either to
+ * resize an array or add qualifiers to an existing variable.
+ *
+ * This is allowed for variables in the current scope, or when at
+ * global scope (for built-ins in the implicit outer scope).
+ */
+ ir_variable *earlier = state->symbols->get_variable(decl->identifier);
+ if (earlier != NULL && (state->current_function == NULL ||
+ state->symbols->name_declared_this_scope(decl->identifier))) {
+
+ /* From page 24 (page 30 of the PDF) of the GLSL 1.50 spec,
+ *
+ * "It is legal to declare an array without a size and then
+ * later re-declare the same name as an array of the same
+ * type and specify a size."
+ */
+ if ((earlier->type->array_size() == 0)
+ && var->type->is_array()
+ && (var->type->element_type() == earlier->type->element_type())) {
+ /* FINISHME: This doesn't match the qualifiers on the two
+ * FINISHME: declarations. It's not 100% clear whether this is
+ * FINISHME: required or not.
+ */
+
+ /* From page 54 (page 60 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "The size [of gl_TexCoord] can be at most
+ * gl_MaxTextureCoords."
+ */
+ const unsigned size = unsigned(var->type->array_size());
+ if ((strcmp("gl_TexCoord", var->name) == 0)
+ && (size > state->Const.MaxTextureCoords)) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state, "`gl_TexCoord' array size cannot "
+ "be larger than gl_MaxTextureCoords (%u)\n",
+ state->Const.MaxTextureCoords);
+ } else if ((size > 0) && (size <= earlier->max_array_access)) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state, "array size must be > %u due to "
+ "previous access",
+ earlier->max_array_access);
+ }
+
+ earlier->type = var->type;
+ delete var;
+ var = NULL;
+ } else if (state->extensions->ARB_fragment_coord_conventions
+ && strcmp(var->name, "gl_FragCoord") == 0
+ && earlier->type == var->type
+ && earlier->mode == var->mode) {
+ /* Allow redeclaration of gl_FragCoord for ARB_fcc layout
+ * qualifiers.
+ */
+ earlier->origin_upper_left = var->origin_upper_left;
+ earlier->pixel_center_integer = var->pixel_center_integer;
+ } else {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(&loc, state, "`%s' redeclared", decl->identifier);
+ }
+
+ continue;
+ }
+
+ /* By now, we know it's a new variable declaration (we didn't hit the
+ * above "continue").
+ *
+ * From page 15 (page 21 of the PDF) of the GLSL 1.10 spec,
+ *
+ * "Identifiers starting with "gl_" are reserved for use by
+ * OpenGL, and may not be declared in a shader as either a
+ * variable or a function."
+ */
+ if (strncmp(decl->identifier, "gl_", 3) == 0)
+ _mesa_glsl_error(& loc, state,
+ "identifier `%s' uses reserved `gl_' prefix",
+ decl->identifier);
+
+ /* Add the variable to the symbol table. Note that the initializer's
+ * IR was already processed earlier (though it hasn't been emitted yet),
+ * without the variable in scope.
+ *
+ * This differs from most C-like languages, but it follows the GLSL
+ * specification. From page 28 (page 34 of the PDF) of the GLSL 1.50
+ * spec:
+ *
+ * "Within a declaration, the scope of a name starts immediately
+ * after the initializer if present or immediately after the name
+ * being declared if not."
+ */
+ if (!state->symbols->add_variable(var->name, var)) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(&loc, state, "name `%s' already taken in the "
+ "current scope", decl->identifier);
+ continue;
+ }
+
+ /* Push the variable declaration to the top. It means that all
+ * the variable declarations will appear in a funny
+ * last-to-first order, but otherwise we run into trouble if a
+ * function is prototyped, a global var is decled, then the
+ * function is defined with usage of the global var. See
+ * glslparsertest's CorrectModule.frag.
+ */
+ instructions->push_head(var);
+ instructions->append_list(&initializer_instructions);
+ }
+
+
+ /* Generally, variable declarations do not have r-values. However,
+ * one is used for the declaration in
+ *
+ * while (bool b = some_condition()) {
+ * ...
+ * }
+ *
+ * so we return the rvalue from the last seen declaration here.
+ */
+ return result;
+}
+
+
+ir_rvalue *
+ast_parameter_declarator::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ const struct glsl_type *type;
+ const char *name = NULL;
+ YYLTYPE loc = this->get_location();
+
+ type = this->type->specifier->glsl_type(& name, state);
+
+ if (type == NULL) {
+ if (name != NULL) {
+ _mesa_glsl_error(& loc, state,
+ "invalid type `%s' in declaration of `%s'",
+ name, this->identifier);
+ } else {
+ _mesa_glsl_error(& loc, state,
+ "invalid type in declaration of `%s'",
+ this->identifier);
+ }
+
+ type = glsl_type::error_type;
+ }
+
+ /* From page 62 (page 68 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "Functions that accept no input arguments need not use void in the
+ * argument list because prototypes (or definitions) are required and
+ * therefore there is no ambiguity when an empty argument list "( )" is
+ * declared. The idiom "(void)" as a parameter list is provided for
+ * convenience."
+ *
+ * Placing this check here prevents a void parameter being set up
+ * for a function, which avoids tripping up checks for main taking
+ * parameters and lookups of an unnamed symbol.
+ */
+ if (type->is_void()) {
+ if (this->identifier != NULL)
+ _mesa_glsl_error(& loc, state,
+ "named parameter cannot have type `void'");
+
+ is_void = true;
+ return NULL;
+ }
+
+ if (formal_parameter && (this->identifier == NULL)) {
+ _mesa_glsl_error(& loc, state, "formal parameter lacks a name");
+ return NULL;
+ }
+
+ /* This only handles "vec4 foo[..]". The earlier specifier->glsl_type(...)
+ * call already handled the "vec4[..] foo" case.
+ */
+ if (this->is_array) {
+ type = process_array_type(&loc, type, this->array_size, state);
+ }
+
+ if (type->array_size() == 0) {
+ _mesa_glsl_error(&loc, state, "arrays passed as parameters must have "
+ "a declared size.");
+ type = glsl_type::error_type;
+ }
+
+ is_void = false;
+ ir_variable *var = new(ctx) ir_variable(type, this->identifier, ir_var_in);
+
+ /* Apply any specified qualifiers to the parameter declaration. Note that
+ * for function parameters the default mode is 'in'.
+ */
+ apply_type_qualifier_to_variable(& this->type->qualifier, var, state, & loc);
+
+ instructions->push_tail(var);
+
+ /* Parameter declarations do not have r-values.
+ */
+ return NULL;
+}
+
+
+void
+ast_parameter_declarator::parameters_to_hir(exec_list *ast_parameters,
+ bool formal,
+ exec_list *ir_parameters,
+ _mesa_glsl_parse_state *state)
+{
+ ast_parameter_declarator *void_param = NULL;
+ unsigned count = 0;
+
+ foreach_list_typed (ast_parameter_declarator, param, link, ast_parameters) {
+ param->formal_parameter = formal;
+ param->hir(ir_parameters, state);
+
+ if (param->is_void)
+ void_param = param;
+
+ count++;
+ }
+
+ if ((void_param != NULL) && (count > 1)) {
+ YYLTYPE loc = void_param->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "`void' parameter must be only parameter");
+ }
+}
+
+
+ir_rvalue *
+ast_function::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ ir_function *f = NULL;
+ ir_function_signature *sig = NULL;
+ exec_list hir_parameters;
+
+ const char *const name = identifier;
+
+ /* From page 21 (page 27 of the PDF) of the GLSL 1.20 spec,
+ *
+ * "Function declarations (prototypes) cannot occur inside of functions;
+ * they must be at global scope, or for the built-in functions, outside
+ * the global scope."
+ *
+ * From page 27 (page 33 of the PDF) of the GLSL ES 1.00.16 spec,
+ *
+ * "User defined functions may only be defined within the global scope."
+ *
+ * Note that this language does not appear in GLSL 1.10.
+ */
+ if ((state->current_function != NULL) && (state->language_version != 110)) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(&loc, state,
+ "declaration of function `%s' not allowed within "
+ "function body", name);
+ }
+
+ /* From page 15 (page 21 of the PDF) of the GLSL 1.10 spec,
+ *
+ * "Identifiers starting with "gl_" are reserved for use by
+ * OpenGL, and may not be declared in a shader as either a
+ * variable or a function."
+ */
+ if (strncmp(name, "gl_", 3) == 0) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(&loc, state,
+ "identifier `%s' uses reserved `gl_' prefix", name);
+ }
+
+ /* Convert the list of function parameters to HIR now so that they can be
+ * used below to compare this function's signature with previously seen
+ * signatures for functions with the same name.
+ */
+ ast_parameter_declarator::parameters_to_hir(& this->parameters,
+ is_definition,
+ & hir_parameters, state);
+
+ const char *return_type_name;
+ const glsl_type *return_type =
+ this->return_type->specifier->glsl_type(& return_type_name, state);
+
+ if (!return_type) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(&loc, state,
+ "function `%s' has undeclared return type `%s'",
+ name, return_type_name);
+ return_type = glsl_type::error_type;
+ }
+
+ /* From page 56 (page 62 of the PDF) of the GLSL 1.30 spec:
+ * "No qualifier is allowed on the return type of a function."
+ */
+ if (this->return_type->has_qualifiers()) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(& loc, state,
+ "function `%s' return type has qualifiers", name);
+ }
+
+ /* Verify that this function's signature either doesn't match a previously
+ * seen signature for a function with the same name, or, if a match is found,
+ * that the previously seen signature does not have an associated definition.
+ */
+ f = state->symbols->get_function(name);
+ if (f != NULL && (state->es_shader || f->has_user_signature())) {
+ sig = f->exact_matching_signature(&hir_parameters);
+ if (sig != NULL) {
+ const char *badvar = sig->qualifiers_match(&hir_parameters);
+ if (badvar != NULL) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(&loc, state, "function `%s' parameter `%s' "
+ "qualifiers don't match prototype", name, badvar);
+ }
+
+ if (sig->return_type != return_type) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(&loc, state, "function `%s' return type doesn't "
+ "match prototype", name);
+ }
+
+ if (is_definition && sig->is_defined) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state, "function `%s' redefined", name);
+ }
+ }
+ } else {
+ f = new(ctx) ir_function(name);
+ if (!state->symbols->add_function(f->name, f)) {
+ /* This function name shadows a non-function use of the same name. */
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(&loc, state, "function name `%s' conflicts with "
+ "non-function", name);
+ return NULL;
+ }
+
+ /* Emit the new function header */
+ if (state->current_function == NULL)
+ instructions->push_tail(f);
+ else {
+ /* IR invariants disallow function declarations or definitions nested
+ * within other function definitions. Insert the new ir_function
+ * block in the instruction sequence before the ir_function block
+ * containing the current ir_function_signature.
+ *
+ * This can only happen in a GLSL 1.10 shader. In all other GLSL
+ * versions this nesting is disallowed. There is a check for this at
+ * the top of this function.
+ */
+ ir_function *const curr =
+ const_cast<ir_function *>(state->current_function->function());
+
+ curr->insert_before(f);
+ }
+ }
+
+ /* Verify the return type of main() */
+ if (strcmp(name, "main") == 0) {
+ if (! return_type->is_void()) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state, "main() must return void");
+ }
+
+ if (!hir_parameters.is_empty()) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state, "main() must not take any parameters");
+ }
+ }
+
+ /* Finish storing the information about this new function in its signature.
+ */
+ if (sig == NULL) {
+ sig = new(ctx) ir_function_signature(return_type);
+ f->add_signature(sig);
+ }
+
+ sig->replace_parameters(&hir_parameters);
+ signature = sig;
+
+ /* Function declarations (prototypes) do not have r-values.
+ */
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_function_definition::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ prototype->is_definition = true;
+ prototype->hir(instructions, state);
+
+ ir_function_signature *signature = prototype->signature;
+ if (signature == NULL)
+ return NULL;
+
+ assert(state->current_function == NULL);
+ state->current_function = signature;
+ state->found_return = false;
+
+ /* Duplicate parameters declared in the prototype as concrete variables.
+ * Add these to the symbol table.
+ */
+ state->symbols->push_scope();
+ foreach_iter(exec_list_iterator, iter, signature->parameters) {
+ ir_variable *const var = ((ir_instruction *) iter.get())->as_variable();
+
+ assert(var != NULL);
+
+ /* The only way a parameter would "exist" is if two parameters have
+ * the same name.
+ */
+ if (state->symbols->name_declared_this_scope(var->name)) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state, "parameter `%s' redeclared", var->name);
+ } else {
+ state->symbols->add_variable(var->name, var);
+ }
+ }
+
+ /* Convert the body of the function to HIR. */
+ this->body->hir(&signature->body, state);
+ signature->is_defined = true;
+
+ state->symbols->pop_scope();
+
+ assert(state->current_function == signature);
+ state->current_function = NULL;
+
+ if (!signature->return_type->is_void() && !state->found_return) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(& loc, state, "function `%s' has non-void return type "
+ "%s, but no return statement",
+ signature->function_name(),
+ signature->return_type->name);
+ }
+
+ /* Function definitions do not have r-values.
+ */
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_jump_statement::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+
+ switch (mode) {
+ case ast_return: {
+ ir_return *inst;
+ assert(state->current_function);
+
+ if (opt_return_value) {
+ if (state->current_function->return_type->base_type ==
+ GLSL_TYPE_VOID) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "`return` with a value, in function `%s' "
+ "returning void",
+ state->current_function->function_name());
+ }
+
+ ir_expression *const ret = (ir_expression *)
+ opt_return_value->hir(instructions, state);
+ assert(ret != NULL);
+
+ /* Implicit conversions are not allowed for return values. */
+ if (state->current_function->return_type != ret->type) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "`return' with wrong type %s, in function `%s' "
+ "returning %s",
+ ret->type->name,
+ state->current_function->function_name(),
+ state->current_function->return_type->name);
+ }
+
+ inst = new(ctx) ir_return(ret);
+ } else {
+ if (state->current_function->return_type->base_type !=
+ GLSL_TYPE_VOID) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "`return' with no value, in function %s returning "
+ "non-void",
+ state->current_function->function_name());
+ }
+ inst = new(ctx) ir_return;
+ }
+
+ state->found_return = true;
+ instructions->push_tail(inst);
+ break;
+ }
+
+ case ast_discard:
+ if (state->target != fragment_shader) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "`discard' may only appear in a fragment shader");
+ }
+ instructions->push_tail(new(ctx) ir_discard);
+ break;
+
+ case ast_break:
+ case ast_continue:
+ /* FINISHME: Handle switch-statements. They cannot contain 'continue',
+ * FINISHME: and they use a different IR instruction for 'break'.
+ */
+ /* FINISHME: Correctly handle the nesting. If a switch-statement is
+ * FINISHME: inside a loop, a 'continue' is valid and will bind to the
+ * FINISHME: loop.
+ */
+ if (state->loop_or_switch_nesting == NULL) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "`%s' may only appear in a loop",
+ (mode == ast_break) ? "break" : "continue");
+ } else {
+ ir_loop *const loop = state->loop_or_switch_nesting->as_loop();
+
+ /* Inline the for loop expression again, since we don't know
+ * where near the end of the loop body the normal copy of it
+ * is going to be placed.
+ */
+ if (mode == ast_continue &&
+ state->loop_or_switch_nesting_ast->rest_expression) {
+ state->loop_or_switch_nesting_ast->rest_expression->hir(instructions,
+ state);
+ }
+
+ if (loop != NULL) {
+ ir_loop_jump *const jump =
+ new(ctx) ir_loop_jump((mode == ast_break)
+ ? ir_loop_jump::jump_break
+ : ir_loop_jump::jump_continue);
+ instructions->push_tail(jump);
+ }
+ }
+
+ break;
+ }
+
+ /* Jump instructions do not have r-values.
+ */
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_selection_statement::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+
+ ir_rvalue *const condition = this->condition->hir(instructions, state);
+
+ /* From page 66 (page 72 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "Any expression whose type evaluates to a Boolean can be used as the
+ * conditional expression bool-expression. Vector types are not accepted
+ * as the expression to if."
+ *
+ * The checks are separated so that higher quality diagnostics can be
+ * generated for cases where both rules are violated.
+ */
+ if (!condition->type->is_boolean() || !condition->type->is_scalar()) {
+ YYLTYPE loc = this->condition->get_location();
+
+ _mesa_glsl_error(& loc, state, "if-statement condition must be scalar "
+ "boolean");
+ }
+
+ ir_if *const stmt = new(ctx) ir_if(condition);
+
+ if (then_statement != NULL) {
+ state->symbols->push_scope();
+ then_statement->hir(& stmt->then_instructions, state);
+ state->symbols->pop_scope();
+ }
+
+ if (else_statement != NULL) {
+ state->symbols->push_scope();
+ else_statement->hir(& stmt->else_instructions, state);
+ state->symbols->pop_scope();
+ }
+
+ instructions->push_tail(stmt);
+
+ /* if-statements do not have r-values.
+ */
+ return NULL;
+}
+
+
+void
+ast_iteration_statement::condition_to_hir(ir_loop *stmt,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+
+ if (condition != NULL) {
+ ir_rvalue *const cond =
+ condition->hir(& stmt->body_instructions, state);
+
+ if ((cond == NULL)
+ || !cond->type->is_boolean() || !cond->type->is_scalar()) {
+ YYLTYPE loc = condition->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "loop condition must be scalar boolean");
+ } else {
+ /* As the first code in the loop body, generate a block that looks
+ * like 'if (!condition) break;' as the loop termination condition.
+ */
+ ir_rvalue *const not_cond =
+ new(ctx) ir_expression(ir_unop_logic_not, glsl_type::bool_type, cond,
+ NULL);
+
+ ir_if *const if_stmt = new(ctx) ir_if(not_cond);
+
+ ir_jump *const break_stmt =
+ new(ctx) ir_loop_jump(ir_loop_jump::jump_break);
+
+ if_stmt->then_instructions.push_tail(break_stmt);
+ stmt->body_instructions.push_tail(if_stmt);
+ }
+ }
+}
+
+
+ir_rvalue *
+ast_iteration_statement::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+
+ /* For-loops and while-loops start a new scope, but do-while loops do not.
+ */
+ if (mode != ast_do_while)
+ state->symbols->push_scope();
+
+ if (init_statement != NULL)
+ init_statement->hir(instructions, state);
+
+ ir_loop *const stmt = new(ctx) ir_loop();
+ instructions->push_tail(stmt);
+
+ /* Track the current loop and / or switch-statement nesting.
+ */
+ ir_instruction *const nesting = state->loop_or_switch_nesting;
+ ast_iteration_statement *nesting_ast = state->loop_or_switch_nesting_ast;
+
+ state->loop_or_switch_nesting = stmt;
+ state->loop_or_switch_nesting_ast = this;
+
+ if (mode != ast_do_while)
+ condition_to_hir(stmt, state);
+
+ if (body != NULL)
+ body->hir(& stmt->body_instructions, state);
+
+ if (rest_expression != NULL)
+ rest_expression->hir(& stmt->body_instructions, state);
+
+ if (mode == ast_do_while)
+ condition_to_hir(stmt, state);
+
+ if (mode != ast_do_while)
+ state->symbols->pop_scope();
+
+ /* Restore previous nesting before returning.
+ */
+ state->loop_or_switch_nesting = nesting;
+ state->loop_or_switch_nesting_ast = nesting_ast;
+
+ /* Loops do not have r-values.
+ */
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_type_specifier::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ if (this->structure != NULL)
+ return this->structure->hir(instructions, state);
+
+ return NULL;
+}
+
+
+ir_rvalue *
+ast_struct_specifier::hir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ unsigned decl_count = 0;
+
+ /* Make an initial pass over the list of structure fields to determine how
+ * many there are. Each element in this list is an ast_declarator_list.
+ * This means that we actually need to count the number of elements in the
+ * 'declarations' list in each of the elements.
+ */
+ foreach_list_typed (ast_declarator_list, decl_list, link,
+ &this->declarations) {
+ foreach_list_const (decl_ptr, & decl_list->declarations) {
+ decl_count++;
+ }
+ }
+
+ /* Allocate storage for the structure fields and process the field
+ * declarations. As the declarations are processed, try to also convert
+ * the types to HIR. This ensures that structure definitions embedded in
+ * other structure definitions are processed.
+ */
+ glsl_struct_field *const fields = talloc_array(state, glsl_struct_field,
+ decl_count);
+
+ unsigned i = 0;
+ foreach_list_typed (ast_declarator_list, decl_list, link,
+ &this->declarations) {
+ const char *type_name;
+
+ decl_list->type->specifier->hir(instructions, state);
+
+ /* Section 10.9 of the GLSL ES 1.00 specification states that
+ * embedded structure definitions have been removed from the language.
+ */
+ if (state->es_shader && decl_list->type->specifier->structure != NULL) {
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(&loc, state, "Embedded structure definitions are "
+ "not allowed in GLSL ES 1.00.");
+ }
+
+ const glsl_type *decl_type =
+ decl_list->type->specifier->glsl_type(& type_name, state);
+
+ foreach_list_typed (ast_declaration, decl, link,
+ &decl_list->declarations) {
+ const struct glsl_type *field_type = decl_type;
+ if (decl->is_array) {
+ YYLTYPE loc = decl->get_location();
+ field_type = process_array_type(&loc, decl_type, decl->array_size,
+ state);
+ }
+ fields[i].type = (field_type != NULL)
+ ? field_type : glsl_type::error_type;
+ fields[i].name = decl->identifier;
+ i++;
+ }
+ }
+
+ assert(i == decl_count);
+
+ const glsl_type *t =
+ glsl_type::get_record_instance(fields, decl_count, this->name);
+
+ YYLTYPE loc = this->get_location();
+ if (!state->symbols->add_type(name, t)) {
+ _mesa_glsl_error(& loc, state, "struct `%s' previously defined", name);
+ } else {
+
+ const glsl_type **s = (const glsl_type **)
+ realloc(state->user_structures,
+ sizeof(state->user_structures[0]) *
+ (state->num_user_structures + 1));
+ if (s != NULL) {
+ s[state->num_user_structures] = t;
+ state->user_structures = s;
+ state->num_user_structures++;
+ }
+ }
+
+ /* Structure type definitions do not have r-values.
+ */
+ return NULL;
+}
diff --git a/mesalib/src/glsl/ast_type.cpp b/mesalib/src/glsl/ast_type.cpp
new file mode 100644
index 000000000..9a957044e
--- /dev/null
+++ b/mesalib/src/glsl/ast_type.cpp
@@ -0,0 +1,122 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <cstdio>
+#include "ast.h"
+extern "C" {
+#include "program/symbol_table.h"
+}
+
+void
+ast_type_specifier::print(void) const
+{
+ if (type_specifier == ast_struct) {
+ structure->print();
+ } else {
+ printf("%s ", type_name);
+ }
+
+ if (is_array) {
+ printf("[ ");
+
+ if (array_size) {
+ array_size->print();
+ }
+
+ printf("] ");
+ }
+}
+
+ast_type_specifier::ast_type_specifier(int specifier)
+ : type_specifier(ast_types(specifier)), type_name(NULL), structure(NULL),
+ is_array(false), array_size(NULL), precision(ast_precision_high)
+{
+ static const char *const names[] = {
+ "void",
+ "float",
+ "int",
+ "uint",
+ "bool",
+ "vec2",
+ "vec3",
+ "vec4",
+ "bvec2",
+ "bvec3",
+ "bvec4",
+ "ivec2",
+ "ivec3",
+ "ivec4",
+ "uvec2",
+ "uvec3",
+ "uvec4",
+ "mat2",
+ "mat2x3",
+ "mat2x4",
+ "mat3x2",
+ "mat3",
+ "mat3x4",
+ "mat4x2",
+ "mat4x3",
+ "mat4",
+ "sampler1D",
+ "sampler2D",
+ "sampler2DRect",
+ "sampler3D",
+ "samplerCube",
+ "sampler1DShadow",
+ "sampler2DShadow",
+ "sampler2DRectShadow",
+ "samplerCubeShadow",
+ "sampler1DArray",
+ "sampler2DArray",
+ "sampler1DArrayShadow",
+ "sampler2DArrayShadow",
+ "isampler1D",
+ "isampler2D",
+ "isampler3D",
+ "isamplerCube",
+ "isampler1DArray",
+ "isampler2DArray",
+ "usampler1D",
+ "usampler2D",
+ "usampler3D",
+ "usamplerCube",
+ "usampler1DArray",
+ "usampler2DArray",
+
+ NULL, /* ast_struct */
+ NULL /* ast_type_name */
+ };
+
+ type_name = names[specifier];
+}
+
+bool
+ast_fully_specified_type::has_qualifiers() const
+{
+ return qualifier.invariant || qualifier.constant || qualifier.attribute
+ || qualifier.varying || qualifier.in
+ || qualifier.out || qualifier.centroid
+ || qualifier.uniform || qualifier.smooth
+ || qualifier.flat || qualifier.noperspective;
+}
diff --git a/mesalib/src/glsl/builtin_function.cpp b/mesalib/src/glsl/builtin_function.cpp
new file mode 100644
index 000000000..5f9bbec2f
--- /dev/null
+++ b/mesalib/src/glsl/builtin_function.cpp
@@ -0,0 +1,19203 @@
+/* DO NOT MODIFY - automatically generated by generate_builtins.py */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include "main/core.h" /* for struct gl_shader */
+#include "glsl_parser_extras.h"
+#include "ir_reader.h"
+#include "program.h"
+#include "ast.h"
+
+extern "C" struct gl_shader *
+_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type);
+
+gl_shader *
+read_builtins(GLenum target, const char *protos, const char **functions, unsigned count)
+{
+ GLcontext fakeCtx;
+ fakeCtx.API = API_OPENGL;
+ gl_shader *sh = _mesa_new_shader(NULL, 0, target);
+ struct _mesa_glsl_parse_state *st =
+ new(sh) _mesa_glsl_parse_state(&fakeCtx, target, sh);
+
+ st->language_version = 130;
+ st->symbols->language_version = 130;
+ st->ARB_texture_rectangle_enable = true;
+ st->EXT_texture_array_enable = true;
+ _mesa_glsl_initialize_types(st);
+
+ sh->ir = new(sh) exec_list;
+ sh->symbols = st->symbols;
+
+ /* Read the IR containing the prototypes */
+ _mesa_glsl_read_ir(st, sh->ir, protos, true);
+
+ /* Read ALL the function bodies, telling the IR reader not to scan for
+ * prototypes (we've already created them). The IR reader will skip any
+ * signature that does not already exist as a prototype.
+ */
+ for (unsigned i = 0; i < count; i++) {
+ _mesa_glsl_read_ir(st, sh->ir, functions[i], false);
+
+ if (st->error) {
+ printf("error reading builtin: %.35s ...\n", functions[i]);
+ printf("Info log:\n%s\n", st->info_log);
+ talloc_free(sh);
+ return NULL;
+ }
+ }
+
+ reparent_ir(sh->ir, sh);
+ delete st;
+
+ return sh;
+}
+
+static const char *builtin_abs =
+ "((function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float abs (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 abs (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 abs (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 abs (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_acos =
+ "((function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float - (constant float (1.5707963))\n"
+ " (call asin ((var_ref x)))))))\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 - (constant float (1.5707963))\n"
+ " (call asin ((var_ref x)))))))\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 - (constant float (1.5707963))\n"
+ " (call asin ((var_ref x)))))))\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 - (constant float (1.5707963))\n"
+ " (call asin ((var_ref x)))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_all =
+ "((function all\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec2 arg0))\n"
+ " ((return (expression bool && (swiz x (var_ref arg0))(swiz y (var_ref arg0))))))\n"
+ "\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec3 arg0))\n"
+ " ((return (expression bool && (expression bool && (swiz x (var_ref arg0))(swiz y (var_ref arg0))) (swiz z (var_ref arg0))))))\n"
+ "\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec4 arg0))\n"
+ " ((return (expression bool && (expression bool && (expression bool && (swiz x (var_ref arg0))(swiz y (var_ref arg0))) (swiz z (var_ref arg0))) (swiz w (var_ref arg0))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_any =
+ "((function any\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec2 arg0))\n"
+ " ((return (expression bool any (var_ref arg0)))))\n"
+ "\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec3 arg0))\n"
+ " ((return (expression bool any (var_ref arg0)))))\n"
+ "\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec4 arg0))\n"
+ " ((return (expression bool any (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_asin =
+ "((function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float *\n"
+ " (expression float sign (var_ref x))\n"
+ " (expression float -\n"
+ " (expression float *\n"
+ " (constant float (3.1415926))\n"
+ " (constant float (0.5)))\n"
+ " (expression float *\n"
+ " (expression float sqrt\n"
+ " (expression float -\n"
+ " (constant float (1.0))\n"
+ " (expression float abs (var_ref x))))\n"
+ " (expression float +\n"
+ " (constant float (1.5707288))\n"
+ " (expression float *\n"
+ " (expression float abs (var_ref x))\n"
+ " (expression float +\n"
+ " (constant float (-0.2121144))\n"
+ " (expression float *\n"
+ " (constant float (0.0742610))\n"
+ " (expression float abs (var_ref x))))))))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 *\n"
+ " (expression vec2 sign (var_ref x))\n"
+ " (expression vec2 -\n"
+ " (expression float *\n"
+ " (constant float (3.1415926))\n"
+ " (constant float (0.5)))\n"
+ " (expression vec2 *\n"
+ " (expression vec2 sqrt\n"
+ " (expression vec2 -\n"
+ " (constant float (1.0))\n"
+ " (expression vec2 abs (var_ref x))))\n"
+ " (expression vec2 +\n"
+ " (constant float (1.5707288))\n"
+ " (expression vec2 *\n"
+ " (expression vec2 abs (var_ref x))\n"
+ " (expression vec2 +\n"
+ " (constant float (-0.2121144))\n"
+ " (expression vec2 *\n"
+ " (constant float (0.0742610))\n"
+ " (expression vec2 abs (var_ref x))))))))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 *\n"
+ " (expression vec3 sign (var_ref x))\n"
+ " (expression vec3 -\n"
+ " (expression float *\n"
+ " (constant float (3.1415926))\n"
+ " (constant float (0.5)))\n"
+ " (expression vec3 *\n"
+ " (expression vec3 sqrt\n"
+ " (expression vec3 -\n"
+ " (constant float (1.0))\n"
+ " (expression vec3 abs (var_ref x))))\n"
+ " (expression vec3 +\n"
+ " (constant float (1.5707288))\n"
+ " (expression vec3 *\n"
+ " (expression vec3 abs (var_ref x))\n"
+ " (expression vec3 +\n"
+ " (constant float (-0.2121144))\n"
+ " (expression vec3 *\n"
+ " (constant float (0.0742610))\n"
+ " (expression vec3 abs (var_ref x))))))))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 *\n"
+ " (expression vec4 sign (var_ref x))\n"
+ " (expression vec4 -\n"
+ " (expression float *\n"
+ " (constant float (3.1415926))\n"
+ " (constant float (0.5)))\n"
+ " (expression vec4 *\n"
+ " (expression vec4 sqrt\n"
+ " (expression vec4 -\n"
+ " (constant float (1.0))\n"
+ " (expression vec4 abs (var_ref x))))\n"
+ " (expression vec4 +\n"
+ " (constant float (1.5707288))\n"
+ " (expression vec4 *\n"
+ " (expression vec4 abs (var_ref x))\n"
+ " (expression vec4 +\n"
+ " (constant float (-0.2121144))\n"
+ " (expression vec4 *\n"
+ " (constant float (0.0742610))\n"
+ " (expression vec4 abs (var_ref x))))))))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_atan =
+ "((function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (call asin ((expression float *\n"
+ " (var_ref x)\n"
+ " (expression float rsq\n"
+ " (expression float +\n"
+ " (expression float *\n"
+ " (var_ref x)\n"
+ " (var_ref x))\n"
+ " (constant float (1.0))))))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ((return (call asin ((expression vec2 *\n"
+ " (var_ref y_over_x)\n"
+ " (expression vec2 rsq\n"
+ " (expression vec2 +\n"
+ " (expression vec2 *\n"
+ " (var_ref y_over_x)\n"
+ " (var_ref y_over_x))\n"
+ " (constant float (1.0))))))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ((return (call asin ((expression vec3 *\n"
+ " (var_ref y_over_x)\n"
+ " (expression vec3 rsq\n"
+ " (expression vec3 +\n"
+ " (expression vec3 *\n"
+ " (var_ref y_over_x)\n"
+ " (var_ref y_over_x))\n"
+ " (constant float (1.0))))))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ((return (call asin ((expression vec4 *\n"
+ " (var_ref y_over_x)\n"
+ " (expression vec4 rsq\n"
+ " (expression vec4 +\n"
+ " (expression vec4 *\n"
+ " (var_ref y_over_x)\n"
+ " (var_ref y_over_x))\n"
+ " (constant float (1.0))))))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in ) float y)\n"
+ " (declare (in ) float x)\n"
+ " )\n"
+ " (\n"
+ " (declare () float r)\n"
+ " (declare ( ) float abs_retval)\n"
+ " (assign (constant bool (1)) (x) (var_ref abs_retval) (call abs ((var_ref x) ))\n"
+ ")\n"
+ " (if (expression bool > (var_ref abs_retval) (constant float (0.000100)) ) (\n"
+ " (declare ( ) float atan_retval)\n"
+ " (assign (constant bool (1)) (x) (var_ref atan_retval) (call atan ((expression float / (var_ref y) (var_ref x) ) ))\n"
+ ")\n"
+ " (assign (constant bool (1)) (x) (var_ref r) (var_ref atan_retval) )\n"
+ " (if (expression bool < (var_ref x) (constant float (0.000000)) ) (\n"
+ " (if (expression bool >= (var_ref y) (constant float (0.000000)) ) (\n"
+ " (declare ( ) float assignment_tmp)\n"
+ " (assign (constant bool (1)) (x) (var_ref assignment_tmp) (expression float + (var_ref r) (constant float (3.141593)) ) )\n"
+ " (assign (constant bool (1)) (x) (var_ref r) (var_ref assignment_tmp) )\n"
+ " )\n"
+ " (\n"
+ " (declare ( ) float assignment_tmp)\n"
+ " (assign (constant bool (1)) (x) (var_ref assignment_tmp) (expression float - (var_ref r) (constant float (3.141593)) ) )\n"
+ " (assign (constant bool (1)) (x) (var_ref r) (var_ref assignment_tmp) )\n"
+ " ))\n"
+ "\n"
+ " )\n"
+ " (\n"
+ " ))\n"
+ "\n"
+ " )\n"
+ " (\n"
+ " (declare () float sgn)\n"
+ " (assign (constant bool (1)) (x) (var_ref sgn) (expression float sign (var_ref y)))\n"
+ " (assign (constant bool (1)) (x) (var_ref r) (expression float * (var_ref sgn) (constant float (1.5707965))))\n"
+ " ))\n"
+ "\n"
+ " (return (var_ref r) )\n"
+ " ))\n"
+ "\n"
+ "\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ((declare () vec2 r)\n"
+ " (assign (constant bool (1)) (x) (var_ref r)\n"
+ " (call atan ((swiz x (var_ref y))\n"
+ " (swiz x (var_ref x)))))\n"
+ " (assign (constant bool (1)) (y) (var_ref r)\n"
+ " (call atan ((swiz y (var_ref y))\n"
+ " (swiz y (var_ref x)))))\n"
+ " (return (var_ref r))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ((declare () vec3 r)\n"
+ " (assign (constant bool (1)) (x) (var_ref r)\n"
+ " (call atan ((swiz x (var_ref y))\n"
+ " (swiz x (var_ref x)))))\n"
+ " (assign (constant bool (1)) (y) (var_ref r)\n"
+ " (call atan ((swiz y (var_ref y))\n"
+ " (swiz y (var_ref x)))))\n"
+ " (assign (constant bool (1)) (z) (var_ref r)\n"
+ " (call atan ((swiz z (var_ref y))\n"
+ " (swiz z (var_ref x)))))\n"
+ " (return (var_ref r))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ((declare () vec4 r)\n"
+ " (assign (constant bool (1)) (x) (var_ref r)\n"
+ " (call atan ((swiz x (var_ref y))\n"
+ " (swiz x (var_ref x)))))\n"
+ " (assign (constant bool (1)) (y) (var_ref r)\n"
+ " (call atan ((swiz y (var_ref y))\n"
+ " (swiz y (var_ref x)))))\n"
+ " (assign (constant bool (1)) (z) (var_ref r)\n"
+ " (call atan ((swiz z (var_ref y))\n"
+ " (swiz z (var_ref x)))))\n"
+ " (assign (constant bool (1)) (w) (var_ref r)\n"
+ " (call atan ((swiz w (var_ref y))\n"
+ " (swiz w (var_ref x)))))\n"
+ " (return (var_ref r)))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_ceil =
+ "((function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float ceil (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 ceil (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 ceil (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 ceil (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_clamp =
+ "((function clamp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression float max (expression float min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1)\n"
+ " (declare (in) vec2 arg2))\n"
+ " ((return (expression vec2 max (expression vec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1)\n"
+ " (declare (in) vec3 arg2))\n"
+ " ((return (expression vec3 max (expression vec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1)\n"
+ " (declare (in) vec4 arg2))\n"
+ " ((return (expression vec4 max (expression vec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) float arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression vec2 max (expression vec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) float arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression vec3 max (expression vec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) float arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression vec4 max (expression vec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature int\n"
+ " (parameters\n"
+ " (declare (in) int arg0)\n"
+ " (declare (in) int arg1)\n"
+ " (declare (in) int arg2))\n"
+ " ((return (expression int max (expression int min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1)\n"
+ " (declare (in) ivec2 arg2))\n"
+ " ((return (expression ivec2 max (expression ivec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1)\n"
+ " (declare (in) ivec3 arg2))\n"
+ " ((return (expression ivec3 max (expression ivec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1)\n"
+ " (declare (in) ivec4 arg2))\n"
+ " ((return (expression ivec4 max (expression ivec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) int arg1)\n"
+ " (declare (in) int arg2))\n"
+ " ((return (expression ivec2 max (expression ivec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) int arg1)\n"
+ " (declare (in) int arg2))\n"
+ " ((return (expression ivec3 max (expression ivec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) int arg1)\n"
+ " (declare (in) int arg2))\n"
+ " ((return (expression ivec4 max (expression ivec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uint\n"
+ " (parameters\n"
+ " (declare (in) uint arg0)\n"
+ " (declare (in) uint arg1)\n"
+ " (declare (in) uint arg2))\n"
+ " ((return (expression uint max (expression uint min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1)\n"
+ " (declare (in) uvec2 arg2))\n"
+ " ((return (expression uvec2 max (expression uvec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1)\n"
+ " (declare (in) uvec3 arg2))\n"
+ " ((return (expression uvec3 max (expression uvec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1)\n"
+ " (declare (in) uvec4 arg2))\n"
+ " ((return (expression uvec4 max (expression uvec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uint arg1)\n"
+ " (declare (in) uint arg2))\n"
+ " ((return (expression uvec2 max (expression uvec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uint arg1)\n"
+ " (declare (in) uint arg2))\n"
+ " ((return (expression uvec3 max (expression uvec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uint arg1)\n"
+ " (declare (in) uint arg2))\n"
+ " ((return (expression uvec4 max (expression uvec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_cos =
+ "((function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ((return (expression float cos (var_ref angle)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ((return (expression vec2 cos (var_ref angle)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ((return (expression vec3 cos (var_ref angle)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ((return (expression vec4 cos (var_ref angle)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_cosh =
+ "((function cosh\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float * (constant float (0.5))\n"
+ " (expression float +\n"
+ " (expression float exp (var_ref x))\n"
+ " (expression float exp (expression float neg (var_ref x))))))))\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 * (constant vec2 (0.5))\n"
+ " (expression vec2 +\n"
+ " (expression vec2 exp (var_ref x))\n"
+ " (expression vec2 exp (expression vec2 neg (var_ref x))))))))\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 * (constant vec3 (0.5))\n"
+ " (expression vec3 +\n"
+ " (expression vec3 exp (var_ref x))\n"
+ " (expression vec3 exp (expression vec3 neg (var_ref x))))))))\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 * (constant vec4 (0.5))\n"
+ " (expression vec4 +\n"
+ " (expression vec4 exp (var_ref x))\n"
+ " (expression vec4 exp (expression vec4 neg (var_ref x))))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_cross =
+ "((function cross\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression vec3 cross (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_dFdx =
+ "((function dFdx\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ((return (expression float dFdx (var_ref p)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ((return (expression vec2 dFdx (var_ref p)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ((return (expression vec3 dFdx (var_ref p)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ((return (expression vec4 dFdx (var_ref p)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_dFdy =
+ "((function dFdy\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ((return (expression float dFdy (var_ref p)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ((return (expression vec2 dFdy (var_ref p)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ((return (expression vec3 dFdy (var_ref p)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ((return (expression vec4 dFdy (var_ref p)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_degrees =
+ "((function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float * (var_ref arg0) (constant float (57.295780))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 * (var_ref arg0) (constant float (57.295780))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 * (var_ref arg0) (constant float (57.295780))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 * (var_ref arg0) (constant float (57.295780))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_distance =
+ "((function distance\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p0)\n"
+ " (declare (in) float p1))\n"
+ " ((return (expression float abs (expression float - (var_ref p0) (var_ref p1))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 p0)\n"
+ " (declare (in) vec2 p1))\n"
+ " ((declare () vec2 p)\n"
+ " (assign (constant bool (1)) (xy) (var_ref p) (expression vec2 - (var_ref p0) (var_ref p1)))\n"
+ " (return (expression float sqrt (expression float dot (var_ref p) (var_ref p))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 p0)\n"
+ " (declare (in) vec3 p1))\n"
+ " ((declare () vec3 p)\n"
+ " (assign (constant bool (1)) (xyz) (var_ref p) (expression vec3 - (var_ref p0) (var_ref p1)))\n"
+ " (return (expression float sqrt (expression float dot (var_ref p) (var_ref p))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 p0)\n"
+ " (declare (in) vec4 p1))\n"
+ " ((declare () vec4 p)\n"
+ " (assign (constant bool (1)) (xyzw) (var_ref p) (expression vec4 - (var_ref p0) (var_ref p1)))\n"
+ " (return (expression float sqrt (expression float dot (var_ref p) (var_ref p))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_dot =
+ "((function dot\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression float * (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression float dot (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression float dot (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression float dot (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_equal =
+ "((function equal\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 arg0)\n"
+ " (declare (in) bvec2 arg1))\n"
+ " ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 arg0)\n"
+ " (declare (in) bvec3 arg1))\n"
+ " ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 arg0)\n"
+ " (declare (in) bvec4 arg1))\n"
+ " ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_exp =
+ "((function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float exp (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 exp (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 exp (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 exp (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_exp2 =
+ "((function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float exp2 (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 exp2 (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 exp2 (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 exp2 (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_faceforward =
+ "((function faceforward\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float N)\n"
+ " (declare (in) float I)\n"
+ " (declare (in) float Nref))\n"
+ " ((if (expression bool < (expression float * (var_ref Nref) (var_ref I)) (constant float (0)))\n"
+ " ((return (var_ref N)))\n"
+ " ((return (expression float neg (var_ref N)))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 N)\n"
+ " (declare (in) vec2 I)\n"
+ " (declare (in) vec2 Nref))\n"
+ " ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))\n"
+ " ((return (var_ref N)))\n"
+ " ((return (expression vec2 neg (var_ref N)))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 N)\n"
+ " (declare (in) vec3 I)\n"
+ " (declare (in) vec3 Nref))\n"
+ " ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))\n"
+ " ((return (var_ref N)))\n"
+ " ((return (expression vec3 neg (var_ref N)))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 N)\n"
+ " (declare (in) vec4 I)\n"
+ " (declare (in) vec4 Nref))\n"
+ " ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))\n"
+ " ((return (var_ref N)))\n"
+ " ((return (expression vec4 neg (var_ref N)))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_floor =
+ "((function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float floor (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 floor (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 floor (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 floor (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_fract =
+ "((function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float fract (var_ref x)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 fract (var_ref x)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 fract (var_ref x)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 fract (var_ref x)))))\n"
+ "))\n"
+ "\n"
+ ""
+;
+static const char *builtin_ftransform =
+ "((declare (uniform) mat4 gl_ModelViewProjectionMatrix)\n"
+ " (declare (in) vec4 gl_Vertex)\n"
+ " (function ftransform\n"
+ " (signature vec4\n"
+ " (parameters)\n"
+ " ((return (expression vec4 *\n"
+ " (var_ref gl_ModelViewProjectionMatrix)\n"
+ " (var_ref gl_Vertex)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_fwidth =
+ "((function fwidth\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ((return (expression float +\n"
+ " (expression float abs (expression float dFdx (var_ref p)))\n"
+ " (expression float abs (expression float dFdy (var_ref p)))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ((return (expression vec2 +\n"
+ " (expression vec2 abs (expression vec2 dFdx (var_ref p)))\n"
+ " (expression vec2 abs (expression vec2 dFdy (var_ref p)))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ((return (expression vec3 +\n"
+ " (expression vec3 abs (expression vec3 dFdx (var_ref p)))\n"
+ " (expression vec3 abs (expression vec3 dFdy (var_ref p)))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ((return (expression vec4 +\n"
+ " (expression vec4 abs (expression vec4 dFdx (var_ref p)))\n"
+ " (expression vec4 abs (expression vec4 dFdy (var_ref p)))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_greaterThan =
+ "((function greaterThan\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression bvec2 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression bvec3 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression bvec4 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression bvec2 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression bvec3 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression bvec4 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression bvec2 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression bvec3 > (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression bvec4 > (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_greaterThanEqual =
+ "((function greaterThanEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression bvec2 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression bvec3 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression bvec4 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression bvec2 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression bvec3 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression bvec4 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression bvec2 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression bvec3 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression bvec4 >= (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_inversesqrt =
+ "((function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float rsq (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 rsq (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 rsq (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 rsq (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_length =
+ "((function length\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float abs (var_ref arg0)))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_lessThan =
+ "((function lessThan\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression bvec2 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression bvec3 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression bvec4 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression bvec2 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression bvec3 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression bvec4 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression bvec2 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression bvec3 < (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression bvec4 < (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_lessThanEqual =
+ "((function lessThanEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression bvec2 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression bvec3 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression bvec4 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression bvec2 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression bvec3 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression bvec4 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression bvec2 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression bvec3 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression bvec4 <= (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_log =
+ "((function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float log (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 log (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 log (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 log (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_log2 =
+ "((function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float log2 (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 log2 (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 log2 (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 log2 (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_matrixCompMult =
+ "((function matrixCompMult\n"
+ " (signature mat2\n"
+ " (parameters\n"
+ " (declare (in) mat2 x)\n"
+ " (declare (in) mat2 y))\n"
+ " ((declare () mat2 z)\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (0))) (expression vec2 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (1))) (expression vec2 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat3\n"
+ " (parameters\n"
+ " (declare (in) mat3 x)\n"
+ " (declare (in) mat3 y))\n"
+ " ((declare () mat3 z)\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (0))) (expression vec3 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (1))) (expression vec3 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (2))) (expression vec3 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat4\n"
+ " (parameters\n"
+ " (declare (in) mat4 x)\n"
+ " (declare (in) mat4 y))\n"
+ " ((declare () mat4 z)\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (0))) (expression vec4 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (1))) (expression vec4 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (2))) (expression vec4 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (3))) (expression vec4 * (array_ref (var_ref x) (constant int (3))) (array_ref (var_ref y) (constant int (3)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat2x3\n"
+ " (parameters\n"
+ " (declare (in) mat2x3 x)\n"
+ " (declare (in) mat2x3 y))\n"
+ " ((declare () mat2x3 z)\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (0))) (expression vec3 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (1))) (expression vec3 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat3x2\n"
+ " (parameters\n"
+ " (declare (in) mat3x2 x)\n"
+ " (declare (in) mat3x2 y))\n"
+ " ((declare () mat3x2 z)\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (0))) (expression vec2 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (1))) (expression vec2 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (2))) (expression vec2 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat2x4\n"
+ " (parameters\n"
+ " (declare (in) mat2x4 x)\n"
+ " (declare (in) mat2x4 y))\n"
+ " ((declare () mat2x4 z)\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (0))) (expression vec4 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (1))) (expression vec4 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat4x2\n"
+ " (parameters\n"
+ " (declare (in) mat4x2 x)\n"
+ " (declare (in) mat4x2 y))\n"
+ " ((declare () mat4x2 z)\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (0))) (expression vec2 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (1))) (expression vec2 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (2))) (expression vec2 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (3))) (expression vec2 * (array_ref (var_ref x) (constant int (3))) (array_ref (var_ref y) (constant int (3)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat3x4\n"
+ " (parameters\n"
+ " (declare (in) mat3x4 x)\n"
+ " (declare (in) mat3x4 y))\n"
+ " ((declare () mat3x4 z)\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (0))) (expression vec4 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (1))) (expression vec4 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (2))) (expression vec4 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
+ "(return (var_ref z))))\n"
+ "\n"
+ " (signature mat4x3\n"
+ " (parameters\n"
+ " (declare (in) mat4x3 x)\n"
+ " (declare (in) mat4x3 y))\n"
+ " ((declare () mat4x3 z)\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (0))) (expression vec3 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (1))) (expression vec3 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (2))) (expression vec3 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (3))) (expression vec3 * (array_ref (var_ref x) (constant int (3))) (array_ref (var_ref y) (constant int (3)))))\n"
+ "(return (var_ref z))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_max =
+ "((function max\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression float max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression vec2 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression vec3 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression vec4 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec2 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec3 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec4 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature int\n"
+ " (parameters\n"
+ " (declare (in) int arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression int max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression ivec2 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression ivec3 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression ivec4 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression ivec2 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression ivec3 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression ivec4 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uint\n"
+ " (parameters\n"
+ " (declare (in) uint arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uint max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression uvec2 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression uvec3 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression uvec4 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uvec2 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uvec3 max (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uvec4 max (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_min =
+ "((function min\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression float min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression vec2 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression vec3 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression vec4 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec2 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec3 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec4 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature int\n"
+ " (parameters\n"
+ " (declare (in) int arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression int min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression ivec2 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression ivec3 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression ivec4 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression ivec2 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression ivec3 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) int arg1))\n"
+ " ((return (expression ivec4 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uint\n"
+ " (parameters\n"
+ " (declare (in) uint arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uint min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression uvec2 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression uvec3 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression uvec4 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uvec2 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uvec3 min (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uint arg1))\n"
+ " ((return (expression uvec4 min (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_mix =
+ "((function mix\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression float + (expression float * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression float * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1)\n"
+ " (declare (in) vec2 arg2))\n"
+ " ((return (expression vec2 + (expression vec2 * (var_ref arg0) (expression vec2 - (constant float (1.000000)) (var_ref arg2))) (expression vec2 * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1)\n"
+ " (declare (in) vec3 arg2))\n"
+ " ((return (expression vec3 + (expression vec3 * (var_ref arg0) (expression vec3 - (constant float (1.000000)) (var_ref arg2))) (expression vec3 * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1)\n"
+ " (declare (in) vec4 arg2))\n"
+ " ((return (expression vec4 + (expression vec4 * (var_ref arg0) (expression vec4 - (constant float (1.000000)) (var_ref arg2))) (expression vec4 * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression vec2 + (expression vec2 * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression vec2 * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression vec3 + (expression vec3 * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression vec3 * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1)\n"
+ " (declare (in) float arg2))\n"
+ " ((return (expression vec4 + (expression vec4 * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression vec4 * (var_ref arg1) (var_ref arg2))))))\n"
+ "\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float v1)\n"
+ " (declare (in) float v2)\n"
+ " (declare (in) bool a))\n"
+ " ((assign (var_ref a) (var_ref v1) (var_ref v2))\n"
+ " (return (var_ref v1))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 v1)\n"
+ " (declare (in) vec2 v2)\n"
+ " (declare (in) bvec2 a))\n"
+ " ((assign (swiz x (var_ref a)) (x) (var_ref v1) (swiz x (var_ref v2)))\n"
+ " (assign (swiz y (var_ref a)) (y) (var_ref v1) (swiz y (var_ref v2)))\n"
+ " (return (var_ref v1))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 v1)\n"
+ " (declare (in) vec3 v2)\n"
+ " (declare (in) bvec3 a))\n"
+ " ((assign (swiz x (var_ref a)) (x) (var_ref v1) (swiz x (var_ref v2)))\n"
+ " (assign (swiz y (var_ref a)) (y) (var_ref v1) (swiz y (var_ref v2)))\n"
+ " (assign (swiz z (var_ref a)) (z) (var_ref v1) (swiz z (var_ref v2)))\n"
+ " (return (var_ref v1))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 v1)\n"
+ " (declare (in) vec4 v2)\n"
+ " (declare (in) bvec4 a))\n"
+ " ((assign (swiz x (var_ref a)) (x) (var_ref v1) (swiz x (var_ref v2)))\n"
+ " (assign (swiz y (var_ref a)) (y) (var_ref v1) (swiz y (var_ref v2)))\n"
+ " (assign (swiz z (var_ref a)) (z) (var_ref v1) (swiz z (var_ref v2)))\n"
+ " (assign (swiz w (var_ref a)) (w) (var_ref v1) (swiz w (var_ref v2)))\n"
+ " (return (var_ref v1))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_mod =
+ "((function mod\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression float % (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression vec2 % (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression vec3 % (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression vec4 % (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec2 % (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec3 % (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression vec4 % (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_noise1 =
+ "((function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float noise (var_ref x)))))\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression float noise (var_ref x)))))\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression float noise (var_ref x)))))\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression float noise (var_ref x)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_noise2 =
+ "((function noise2\n"
+ " (signature vec2\n"
+ " (parameters (declare (in) vec4 p))\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () vec2 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters (declare (in) vec3 p))\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () vec2 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in ) vec2 p)\n"
+ " )\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () vec2 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in ) float p)\n"
+ " )\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () vec2 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression float + (var_ref p) (constant float (601.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_noise3 =
+ "((function noise3\n"
+ " (signature vec3\n"
+ " (parameters (declare (in) vec4 p))\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () float c)\n"
+ " (declare () vec3 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (1559.0 113.0 1861.0 797.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters (declare (in) vec3 p))\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () float c)\n"
+ " (declare () vec3 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (1559.0 113.0 1861.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters (declare (in) vec2 p))\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () float c)\n"
+ " (declare () vec3 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (1559.0 113.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters (declare (in) float p))\n"
+ " (\n"
+ " (declare () float a)\n"
+ " (declare () float b)\n"
+ " (declare () float c)\n"
+ " (declare () vec3 t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression float + (var_ref p) (constant float (601.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression float + (var_ref p) (constant float (1559.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
+ " (return (var_ref t))\n"
+ " ))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_noise4 =
+ "((function noise4\n"
+ " (signature vec4\n"
+ " (parameters (declare (in) vec4 p))\n"
+ " (\n"
+ " (declare () float _x)\n"
+ " (declare () float _y)\n"
+ " (declare () float _z)\n"
+ " (declare () float _w)\n"
+ " (declare () vec4 _r)\n"
+ "\n"
+ " (declare () vec4 _p)\n"
+ " (assign (constant bool (1)) (xyzw) (var_ref _p) (expression vec4 + (var_ref p) (constant vec4 (1559.0 113.0 1861.0 797.0))) )\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec4 + (var_ref _p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
+ " (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
+ " (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
+ " (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
+ " (return (var_ref _r))\n"
+ " ))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters (declare (in) vec3 p))\n"
+ " (\n"
+ " (declare () float _x)\n"
+ " (declare () float _y)\n"
+ " (declare () float _z)\n"
+ " (declare () float _w)\n"
+ " (declare () vec4 _r)\n"
+ "\n"
+ " (declare () vec3 _p)\n"
+ " (assign (constant bool (1)) (xyz) (var_ref _p) (expression vec3 + (var_ref p) (constant vec3 (1559.0 113.0 1861.0))) )\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec3 + (var_ref _p) (constant vec3 (601.0 313.0 29.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
+ " (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
+ " (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
+ " (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
+ " (return (var_ref _r))\n"
+ " ))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters (declare (in) vec2 p))\n"
+ " (\n"
+ " (declare () float _x)\n"
+ " (declare () float _y)\n"
+ " (declare () float _z)\n"
+ " (declare () float _w)\n"
+ " (declare () vec4 _r)\n"
+ "\n"
+ " (declare () vec2 _p)\n"
+ " (assign (constant bool (1)) (xy) (var_ref _p) (expression vec2 + (var_ref p) (constant vec2 (1559.0 113.0))) )\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec2 + (var_ref _p) (constant vec2 (601.0 313.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
+ " (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
+ " (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
+ " (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
+ " (return (var_ref _r))\n"
+ " ))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters (declare (in) float p))\n"
+ " (\n"
+ " (declare () float _x)\n"
+ " (declare () float _y)\n"
+ " (declare () float _z)\n"
+ " (declare () float _w)\n"
+ " (declare () vec4 _r)\n"
+ "\n"
+ " (declare () float _p)\n"
+ " (assign (constant bool (1)) (x) (var_ref _p) (expression float + (var_ref p) (constant float (1559.0))) )\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression float + (var_ref p) (constant float (601.0 313.0 29.0 277.0)))))\n"
+ " (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
+ " (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression float + (var_ref _p) (constant float (601.0 313.0 29.0 277.0)))))\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
+ " (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
+ " (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
+ " (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
+ " (return (var_ref _r))\n"
+ " ))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_normalize =
+ "((function normalize\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float sign (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 * (var_ref arg0) (expression float rsq (expression float dot (var_ref arg0) (var_ref arg0)))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 * (var_ref arg0) (expression float rsq (expression float dot (var_ref arg0) (var_ref arg0)))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 * (var_ref arg0) (expression float rsq (expression float dot (var_ref arg0) (var_ref arg0)))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_not =
+ "((function not\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 arg0))\n"
+ " ((return (expression bvec2 ! (var_ref arg0)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 arg0))\n"
+ " ((return (expression bvec3 ! (var_ref arg0)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 arg0))\n"
+ " ((return (expression bvec4 ! (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_notEqual =
+ "((function notEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 arg0)\n"
+ " (declare (in) bvec2 arg1))\n"
+ " ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 arg0)\n"
+ " (declare (in) bvec3 arg1))\n"
+ " ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 arg0)\n"
+ " (declare (in) bvec4 arg1))\n"
+ " ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 arg0)\n"
+ " (declare (in) ivec2 arg1))\n"
+ " ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 arg0)\n"
+ " (declare (in) ivec3 arg1))\n"
+ " ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 arg0)\n"
+ " (declare (in) ivec4 arg1))\n"
+ " ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) uvec2 arg0)\n"
+ " (declare (in) uvec2 arg1))\n"
+ " ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) uvec3 arg0)\n"
+ " (declare (in) uvec3 arg1))\n"
+ " ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) uvec4 arg0)\n"
+ " (declare (in) uvec4 arg1))\n"
+ " ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_outerProduct =
+ "((function outerProduct\n"
+ " (signature mat2\n"
+ " (parameters\n"
+ " (declare (in) vec2 u)\n"
+ " (declare (in) vec2 v))\n"
+ " ((declare () mat2 m)\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (0))) (expression vec2 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (1))) (expression vec2 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat2x3\n"
+ " (parameters\n"
+ " (declare (in) vec3 u)\n"
+ " (declare (in) vec2 v))\n"
+ " ((declare () mat2x3 m)\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (0))) (expression vec3 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (1))) (expression vec3 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat2x4\n"
+ " (parameters\n"
+ " (declare (in) vec4 u)\n"
+ " (declare (in) vec2 v))\n"
+ " ((declare () mat2x4 m)\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (0))) (expression vec4 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (1))) (expression vec4 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat3x2\n"
+ " (parameters\n"
+ " (declare (in) vec2 u)\n"
+ " (declare (in) vec3 v))\n"
+ " ((declare () mat3x2 m)\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (0))) (expression vec2 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (1))) (expression vec2 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (2))) (expression vec2 * (var_ref u) (swiz z (var_ref v))))\n"
+ " (return (var_ref m))\n"
+ " ))\n"
+ "\n"
+ " (signature mat3\n"
+ " (parameters\n"
+ " (declare (in) vec3 u)\n"
+ " (declare (in) vec3 v))\n"
+ " ((declare () mat3 m)\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (0))) (expression vec3 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (1))) (expression vec3 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (2))) (expression vec3 * (var_ref u) (swiz z (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat3x4\n"
+ " (parameters\n"
+ " (declare (in) vec4 u)\n"
+ " (declare (in) vec3 v))\n"
+ " ((declare () mat3x4 m)\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (0))) (expression vec4 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (1))) (expression vec4 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (2))) (expression vec4 * (var_ref u) (swiz z (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat4x2\n"
+ " (parameters\n"
+ " (declare (in) vec2 u)\n"
+ " (declare (in) vec4 v))\n"
+ " ((declare () mat4x2 m)\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (0))) (expression vec2 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (1))) (expression vec2 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (2))) (expression vec2 * (var_ref u) (swiz z (var_ref v))))\n"
+ " (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (3))) (expression vec2 * (var_ref u) (swiz w (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat4x3\n"
+ " (parameters\n"
+ " (declare (in) vec3 u)\n"
+ " (declare (in) vec4 v))\n"
+ " ((declare () mat4x3 m)\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (0))) (expression vec3 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (1))) (expression vec3 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (2))) (expression vec3 * (var_ref u) (swiz z (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (3))) (expression vec3 * (var_ref u) (swiz w (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "\n"
+ " (signature mat4\n"
+ " (parameters\n"
+ " (declare (in) vec4 u)\n"
+ " (declare (in) vec4 v))\n"
+ " ((declare () mat4 m)\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (0))) (expression vec4 * (var_ref u) (swiz x (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (1))) (expression vec4 * (var_ref u) (swiz y (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (2))) (expression vec4 * (var_ref u) (swiz z (var_ref v))))\n"
+ " (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (3))) (expression vec4 * (var_ref u) (swiz w (var_ref v))))\n"
+ " (return (var_ref m))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_pow =
+ "((function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0)\n"
+ " (declare (in) float arg1))\n"
+ " ((return (expression float pow (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0)\n"
+ " (declare (in) vec2 arg1))\n"
+ " ((return (expression vec2 pow (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0)\n"
+ " (declare (in) vec3 arg1))\n"
+ " ((return (expression vec3 pow (var_ref arg0) (var_ref arg1)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0)\n"
+ " (declare (in) vec4 arg1))\n"
+ " ((return (expression vec4 pow (var_ref arg0) (var_ref arg1)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_radians =
+ "((function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float * (var_ref arg0) (constant float (0.017453))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 * (var_ref arg0) (constant float (0.017453))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 * (var_ref arg0) (constant float (0.017453))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 * (var_ref arg0) (constant float (0.017453))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_reflect =
+ "((function reflect\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float i)\n"
+ " (declare (in) float n))\n"
+ " ((return (expression float -\n"
+ " (var_ref i)\n"
+ " (expression float *\n"
+ " (constant float (2.0))\n"
+ " (expression float *\n"
+ " (expression float *\n"
+ " (var_ref n)\n"
+ " (var_ref i))\n"
+ " (var_ref n)))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 i)\n"
+ " (declare (in) vec2 n))\n"
+ " ((return (expression vec2 -\n"
+ " (var_ref i)\n"
+ " (expression vec2 *\n"
+ " (constant float (2.0))\n"
+ " (expression vec2 *\n"
+ " (expression float dot\n"
+ " (var_ref n)\n"
+ " (var_ref i))\n"
+ " (var_ref n)))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 i)\n"
+ " (declare (in) vec3 n))\n"
+ " ((return (expression vec3 -\n"
+ " (var_ref i)\n"
+ " (expression vec3 *\n"
+ " (constant float (2.0))\n"
+ " (expression vec3 *\n"
+ " (expression float dot\n"
+ " (var_ref n)\n"
+ " (var_ref i))\n"
+ " (var_ref n)))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 i)\n"
+ " (declare (in) vec4 n))\n"
+ " ((return (expression vec4 -\n"
+ " (var_ref i)\n"
+ " (expression vec4 *\n"
+ " (constant float (2.0))\n"
+ " (expression vec4 *\n"
+ " (expression float dot\n"
+ " (var_ref n)\n"
+ " (var_ref i))\n"
+ " (var_ref n)))))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_refract =
+ "((function refract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float i)\n"
+ " (declare (in) float n)\n"
+ " (declare (in) float eta))\n"
+ " ((declare () float k)\n"
+ " (assign (constant bool (1)) (x) (var_ref k)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * \n"
+ " (expression float * (var_ref n) (var_ref i))\n"
+ " (expression float * (var_ref n) (var_ref i))))))))\n"
+ " (if (expression bool < (var_ref k) (constant float (0.0)))\n"
+ " ((return (constant float (0.0))))\n"
+ " ((return (expression float -\n"
+ " (expression float * (var_ref eta) (var_ref i))\n"
+ " (expression float *\n"
+ " (expression float +\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float * (var_ref n) (var_ref i)))\n"
+ " (expression float sqrt (var_ref k)))\n"
+ " (var_ref n))))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 i)\n"
+ " (declare (in) vec2 n)\n"
+ " (declare (in) float eta))\n"
+ " ((declare () float k)\n"
+ " (assign (constant bool (1)) (x) (var_ref k)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * \n"
+ " (expression float dot (var_ref n) (var_ref i))\n"
+ " (expression float dot (var_ref n) (var_ref i))))))))\n"
+ " (if (expression bool < (var_ref k) (constant float (0.0)))\n"
+ " ((return (constant vec2 (0.0 0.0))))\n"
+ " ((return (expression vec2 -\n"
+ " (expression vec2 * (var_ref eta) (var_ref i))\n"
+ " (expression vec2 *\n"
+ " (expression float +\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float dot (var_ref n) (var_ref i)))\n"
+ " (expression float sqrt (var_ref k)))\n"
+ " (var_ref n))))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 i)\n"
+ " (declare (in) vec3 n)\n"
+ " (declare (in) float eta))\n"
+ " ((declare () float k)\n"
+ " (assign (constant bool (1)) (x) (var_ref k)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * \n"
+ " (expression float dot (var_ref n) (var_ref i))\n"
+ " (expression float dot (var_ref n) (var_ref i))))))))\n"
+ " (if (expression bool < (var_ref k) (constant float (0.0)))\n"
+ " ((return (constant vec3 (0.0 0.0 0.0))))\n"
+ " ((return (expression vec3 -\n"
+ " (expression vec3 * (var_ref eta) (var_ref i))\n"
+ " (expression vec3 *\n"
+ " (expression float +\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float dot (var_ref n) (var_ref i)))\n"
+ " (expression float sqrt (var_ref k)))\n"
+ " (var_ref n))))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 i)\n"
+ " (declare (in) vec4 n)\n"
+ " (declare (in) float eta))\n"
+ " ((declare () float k)\n"
+ " (assign (constant bool (1)) (x) (var_ref k)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float - (constant float (1.0))\n"
+ " (expression float * \n"
+ " (expression float dot (var_ref n) (var_ref i))\n"
+ " (expression float dot (var_ref n) (var_ref i))))))))\n"
+ " (if (expression bool < (var_ref k) (constant float (0.0)))\n"
+ " ((return (constant vec4 (0.0 0.0 0.0 0.0))))\n"
+ " ((return (expression vec4 -\n"
+ " (expression vec4 * (var_ref eta) (var_ref i))\n"
+ " (expression vec4 *\n"
+ " (expression float +\n"
+ " (expression float * (var_ref eta)\n"
+ " (expression float dot (var_ref n) (var_ref i)))\n"
+ " (expression float sqrt (var_ref k)))\n"
+ " (var_ref n))))))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow1D =
+ "((function shadow1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow1DArray =
+ "((function shadow1DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow1DArrayLod =
+ "((function shadow1DArrayLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow1DLod =
+ "((function shadow1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow1DProj =
+ "((function shadow1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow1DProjLod =
+ "((function shadow1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2D =
+ "((function shadow2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2DArray =
+ "((function shadow2DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArrayShadow sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) 1 (swiz w (var_ref P)) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2DLod =
+ "((function shadow2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2DProj =
+ "((function shadow2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2DProjLod =
+ "((function shadow2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2DRect =
+ "((function shadow2DRect\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRectShadow sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_shadow2DRectProj =
+ "((function shadow2DRectProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRectShadow sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_sign =
+ "((function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float sign (var_ref x)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 sign (var_ref x)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 sign (var_ref x)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 sign (var_ref x)))))\n"
+ "\n"
+ " (signature int\n"
+ " (parameters\n"
+ " (declare (in) int x))\n"
+ " ((return (expression int sign (var_ref x)))))\n"
+ "\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x))\n"
+ " ((return (expression ivec2 sign (var_ref x)))))\n"
+ "\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x))\n"
+ " ((return (expression ivec3 sign (var_ref x)))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x))\n"
+ " ((return (expression ivec4 sign (var_ref x)))))\n"
+ "))\n"
+ "\n"
+ ""
+;
+static const char *builtin_sin =
+ "((function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ((return (expression float sin (var_ref angle)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ((return (expression vec2 sin (var_ref angle)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ((return (expression vec3 sin (var_ref angle)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ((return (expression vec4 sin (var_ref angle)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_sinh =
+ "((function sinh\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float * (constant float (0.5))\n"
+ " (expression float -\n"
+ " (expression float exp (var_ref x))\n"
+ " (expression float exp (expression float neg (var_ref x))))))))\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 * (constant vec2 (0.5))\n"
+ " (expression vec2 -\n"
+ " (expression vec2 exp (var_ref x))\n"
+ " (expression vec2 exp (expression vec2 neg (var_ref x))))))))\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 * (constant vec3 (0.5))\n"
+ " (expression vec3 -\n"
+ " (expression vec3 exp (var_ref x))\n"
+ " (expression vec3 exp (expression vec3 neg (var_ref x))))))))\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 * (constant vec4 (0.5))\n"
+ " (expression vec4 -\n"
+ " (expression vec4 exp (var_ref x))\n"
+ " (expression vec4 exp (expression vec4 neg (var_ref x))))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_smoothstep =
+ "((function smoothstep\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) float x))\n"
+ " ((declare () float t)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (return (expression float * (var_ref t) (expression float * (var_ref t) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (var_ref t))))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) vec2 x))\n"
+ " ((declare () vec2 t)\n"
+ " (declare () vec2 retval)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz x (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (x) (var_ref retval) (expression float * (swiz x (var_ref t)) (expression float * (swiz x (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz x (var_ref t)))))))\n"
+ "\n"
+ " (assign (constant bool (1)) (y) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz y (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (y) (var_ref retval) (expression float * (swiz y (var_ref t)) (expression float * (swiz y (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz y (var_ref t)))))))\n"
+ " (return (var_ref retval))\n"
+ " ))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) vec3 x))\n"
+ " ((declare () vec3 t)\n"
+ " (declare () vec3 retval)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz x (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (x) (var_ref retval) (expression float * (swiz x (var_ref t)) (expression float * (swiz x (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz x (var_ref t)))))))\n"
+ "\n"
+ " (assign (constant bool (1)) (y) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz y (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (y) (var_ref retval) (expression float * (swiz y (var_ref t)) (expression float * (swiz y (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz y (var_ref t)))))))\n"
+ "\n"
+ " (assign (constant bool (1)) (z) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz z (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (z) (var_ref retval) (expression float * (swiz z (var_ref t)) (expression float * (swiz z (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz z (var_ref t)))))))\n"
+ " (return (var_ref retval))\n"
+ " ))\n"
+ "\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) vec4 x))\n"
+ " ((declare () vec4 t)\n"
+ " (declare () vec4 retval)\n"
+ "\n"
+ " (assign (constant bool (1)) (x) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz x (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (x) (var_ref retval) (expression float * (swiz x (var_ref t)) (expression float * (swiz x (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz x (var_ref t)))))))\n"
+ "\n"
+ " (assign (constant bool (1)) (y) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz y (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (y) (var_ref retval) (expression float * (swiz y (var_ref t)) (expression float * (swiz y (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz y (var_ref t)))))))\n"
+ "\n"
+ " (assign (constant bool (1)) (z) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz z (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (z) (var_ref retval) (expression float * (swiz z (var_ref t)) (expression float * (swiz z (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz z (var_ref t)))))))\n"
+ "\n"
+ " (assign (constant bool (1)) (w) (var_ref t)\n"
+ " (expression float max\n"
+ " (expression float min\n"
+ " (expression float / (expression float - (swiz w (var_ref x)) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant float (1.0)))\n"
+ " (constant float (0.0))))\n"
+ " (assign (constant bool (1)) (w) (var_ref retval) (expression float * (swiz w (var_ref t)) (expression float * (swiz w (var_ref t)) (expression float - (constant float (3.000000)) (expression float * (constant float (2.000000)) (swiz w (var_ref t)))))))\n"
+ " (return (var_ref retval))\n"
+ " ))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 edge0)\n"
+ " (declare (in) vec2 edge1)\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 max\n"
+ " (expression vec2 min\n"
+ " (expression vec2 / (expression vec2 - (var_ref x) (var_ref edge0)) (expression vec2 - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant vec2 (1.0 1.0)))\n"
+ " (constant vec2 (0.0 0.0))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 edge0)\n"
+ " (declare (in) vec3 edge1)\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 max\n"
+ " (expression vec3 min\n"
+ " (expression vec3 / (expression vec3 - (var_ref x) (var_ref edge0)) (expression vec3 - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant vec3 (1.0 1.0 1.0)))\n"
+ " (constant vec3 (0.0 0.0 0.0))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 edge0)\n"
+ " (declare (in) vec4 edge1)\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 max\n"
+ " (expression vec4 min\n"
+ " (expression vec4 / (expression vec4 - (var_ref x) (var_ref edge0)) (expression vec4 - (var_ref edge1) (var_ref edge0)))\n"
+ " (constant vec4 (1.0 1.0 1.0 1.0)))\n"
+ " (constant vec4 (0.0 0.0 0.0 0.0))))))\n"
+ "))\n"
+ "\n"
+ ""
+;
+static const char *builtin_sqrt =
+ "((function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float arg0))\n"
+ " ((return (expression float sqrt (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 arg0))\n"
+ " ((return (expression vec2 sqrt (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 arg0))\n"
+ " ((return (expression vec3 sqrt (var_ref arg0)))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 arg0))\n"
+ " ((return (expression vec4 sqrt (var_ref arg0)))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_step =
+ "((function step\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float b2f (expression bool >= (var_ref x) (var_ref edge))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) vec2 x))\n"
+ " ((declare () vec2 t)\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(var_ref edge))))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(var_ref edge))))\n"
+ " (return (var_ref t))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) vec3 x))\n"
+ " ((declare () vec3 t)\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(var_ref edge))))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(var_ref edge))))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(var_ref edge))))\n"
+ " (return (var_ref t))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) vec4 x))\n"
+ " ((declare () vec4 t)\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(var_ref edge))))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(var_ref edge))))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(var_ref edge))))\n"
+ " (assign (constant bool (1)) (w) (var_ref t) (expression float b2f (expression bool >= (swiz w (var_ref x))(var_ref edge))))\n"
+ " (return (var_ref t))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 edge)\n"
+ " (declare (in) vec2 x))\n"
+ " ((declare () vec2 t)\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(swiz x (var_ref edge)))))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(swiz y (var_ref edge)))))\n"
+ " (return (var_ref t))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 edge)\n"
+ " (declare (in) vec3 x))\n"
+ " ((declare () vec3 t)\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(swiz x (var_ref edge)))))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(swiz y (var_ref edge)))))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(swiz z (var_ref edge)))))\n"
+ " (return (var_ref t))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 edge)\n"
+ " (declare (in) vec4 x))\n"
+ " ((declare () vec4 t)\n"
+ " (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(swiz x (var_ref edge)))))\n"
+ " (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(swiz y (var_ref edge)))))\n"
+ " (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(swiz z (var_ref edge)))))\n"
+ " (assign (constant bool (1)) (w) (var_ref t) (expression float b2f (expression bool >= (swiz w (var_ref x))(swiz w (var_ref edge)))))\n"
+ " (return (var_ref t))))\n"
+ "))\n"
+ "\n"
+ ""
+;
+static const char *builtin_tan =
+ "((function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ((return (expression float / (expression float sin (var_ref angle)) (expression float cos (var_ref angle))))))\n"
+ "\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ((return (expression vec2 / (expression vec2 sin (var_ref angle)) (expression vec2 cos (var_ref angle))))))\n"
+ "\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ((return (expression vec3 / (expression vec3 sin (var_ref angle)) (expression vec3 cos (var_ref angle))))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ((return (expression vec4 / (expression vec4 sin (var_ref angle)) (expression vec4 cos (var_ref angle))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_tanh =
+ "((function tanh\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ((return (expression float /\n"
+ " (expression float -\n"
+ " (expression float exp (var_ref x))\n"
+ " (expression float exp (expression float neg (var_ref x))))\n"
+ " (expression float +\n"
+ " (expression float exp (var_ref x))\n"
+ " (expression float exp (expression float neg (var_ref x))))))))\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ((return (expression vec2 /\n"
+ " (expression vec2 -\n"
+ " (expression vec2 exp (var_ref x))\n"
+ " (expression vec2 exp (expression vec2 neg (var_ref x))))\n"
+ " (expression vec2 +\n"
+ " (expression vec2 exp (var_ref x))\n"
+ " (expression vec2 exp (expression vec2 neg (var_ref x))))))))\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ((return (expression vec3 /\n"
+ " (expression vec3 -\n"
+ " (expression vec3 exp (var_ref x))\n"
+ " (expression vec3 exp (expression vec3 neg (var_ref x))))\n"
+ " (expression vec3 +\n"
+ " (expression vec3 exp (var_ref x))\n"
+ " (expression vec3 exp (expression vec3 neg (var_ref x))))))))\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ((return (expression vec4 /\n"
+ " (expression vec4 -\n"
+ " (expression vec4 exp (var_ref x))\n"
+ " (expression vec4 exp (expression vec4 neg (var_ref x))))\n"
+ " (expression vec4 +\n"
+ " (expression vec4 exp (var_ref x))\n"
+ " (expression vec4 exp (expression vec4 neg (var_ref x))))))))\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texelFetch =
+ "((function texelFetch\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) int P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) int P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) int P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) ivec2 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) ivec2 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) ivec2 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) ivec3 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) ivec3 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) ivec3 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) ivec2 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1DArray sampler)\n"
+ " (declare (in) ivec2 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1DArray sampler)\n"
+ " (declare (in) ivec2 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) ivec3 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2DArray sampler)\n"
+ " (declare (in) ivec3 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2DArray sampler)\n"
+ " (declare (in) ivec3 P) \n"
+ " (declare (in) int lod) )\n"
+ " ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture =
+ "((function texture\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) float P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) float P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isamplerCube sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usamplerCube sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1DArray sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1DArray sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2DArray sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2DArray sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isamplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usamplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture1D =
+ "((function texture1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture1DArray =
+ "((function texture1DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture1DArrayLod =
+ "((function texture1DArrayLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture1DLod =
+ "((function texture1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture1DProj =
+ "((function texture1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture1DProjLod =
+ "((function texture1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2D =
+ "((function texture2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DArray =
+ "((function texture2DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DArrayLod =
+ "((function texture2DArrayLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DLod =
+ "((function texture2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DProj =
+ "((function texture2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DProjLod =
+ "((function texture2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DRect =
+ "((function texture2DRect\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture2DRectProj =
+ "((function texture2DRectProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture3D =
+ "((function texture3D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture3DLod =
+ "((function texture3DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture3DProj =
+ "((function texture3DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_texture3DProjLod =
+ "((function texture3DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureCube =
+ "((function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureCubeLod =
+ "((function textureCubeLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureGrad =
+ "((function textureGrad\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isamplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usamplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureLod =
+ "((function textureLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) float P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isamplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usamplerCube sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1DArray sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2DArray sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureProj =
+ "((function textureProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec2 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec3 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec4 P) )\n"
+ " ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float bias) )\n"
+ " ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureProjGrad =
+ "((function textureProjGrad\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float dPdx) \n"
+ " (declare (in) float dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) vec2 dPdx) \n"
+ " (declare (in) vec2 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) vec3 dPdx) \n"
+ " (declare (in) vec3 dPdy) )\n"
+ " ((return (txd (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_textureProjLod =
+ "((function textureProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec2 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec3 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec4 P) \n"
+ " (declare (in) float lod) )\n"
+ " ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
+ "\n"
+ "))\n"
+ ""
+;
+static const char *builtin_transpose =
+ "((function transpose\n"
+ " (signature mat2\n"
+ " (parameters\n"
+ " (declare (in) mat2 m))\n"
+ " ((declare () mat2 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat3x2\n"
+ " (parameters\n"
+ " (declare (in) mat2x3 m))\n"
+ " ((declare () mat3x2 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat4x2\n"
+ " (parameters\n"
+ " (declare (in) mat2x4 m))\n"
+ " ((declare () mat4x2 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (1)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat2x3\n"
+ " (parameters\n"
+ " (declare (in) mat3x2 m))\n"
+ " ((declare () mat2x3 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat3\n"
+ " (parameters\n"
+ " (declare (in) mat3 m))\n"
+ " ((declare () mat3 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat4x3\n"
+ " (parameters\n"
+ " (declare (in) mat3x4 m))\n"
+ " ((declare () mat4x3 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (2)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat2x4\n"
+ " (parameters\n"
+ " (declare (in) mat4x2 m))\n"
+ " ((declare () mat2x4 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (3)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (3)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat3x4\n"
+ " (parameters\n"
+ " (declare (in) mat4x3 m))\n"
+ " ((declare () mat3x4 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (3)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (3)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (3)))))\n"
+ "(return (var_ref t))))\n"
+ "\n"
+ " (signature mat4\n"
+ " (parameters\n"
+ " (declare (in) mat4 m))\n"
+ " ((declare () mat4 t)\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (0)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (1)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (2)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (3)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (3)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (3)))))\n"
+ " (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (3)))))\n"
+ "(return (var_ref t))))\n"
+ ")\n"
+ "\n"
+ ")\n"
+ "\n"
+ ""
+;
+static const char *prototypes_for_100_frag =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function mod\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function min\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function max\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function clamp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 minVal)\n"
+ " (declare (in) vec2 maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 minVal)\n"
+ " (declare (in) vec3 maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 minVal)\n"
+ " (declare (in) vec4 maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ()))\n"
+ "(function mix\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 a))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 a))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 a))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) float a))\n"
+ " ()))\n"
+ "(function step\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 edge)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 edge)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 edge)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function smoothstep\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 edge0)\n"
+ " (declare (in) vec2 edge1)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 edge0)\n"
+ " (declare (in) vec3 edge1)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 edge0)\n"
+ " (declare (in) vec4 edge1)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float edge0)\n"
+ " (declare (in) float edge1)\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function length\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function distance\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p0)\n"
+ " (declare (in) float p1))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 p0)\n"
+ " (declare (in) vec2 p1))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 p0)\n"
+ " (declare (in) vec3 p1))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 p0)\n"
+ " (declare (in) vec4 p1))\n"
+ " ()))\n"
+ "(function dot\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function cross\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ()))\n"
+ "(function normalize\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function faceforward\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float N)\n"
+ " (declare (in) float I)\n"
+ " (declare (in) float Nref))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 N)\n"
+ " (declare (in) vec2 I)\n"
+ " (declare (in) vec2 Nref))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 N)\n"
+ " (declare (in) vec3 I)\n"
+ " (declare (in) vec3 Nref))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 N)\n"
+ " (declare (in) vec4 I)\n"
+ " (declare (in) vec4 Nref))\n"
+ " ()))\n"
+ "(function reflect\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float I)\n"
+ " (declare (in) float N))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 I)\n"
+ " (declare (in) vec2 N))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 I)\n"
+ " (declare (in) vec3 N))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 I)\n"
+ " (declare (in) vec4 N))\n"
+ " ()))\n"
+ "(function refract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float I)\n"
+ " (declare (in) float N)\n"
+ " (declare (in) float eta))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 I)\n"
+ " (declare (in) vec2 N)\n"
+ " (declare (in) float eta))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 I)\n"
+ " (declare (in) vec3 N)\n"
+ " (declare (in) float eta))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 I)\n"
+ " (declare (in) vec4 N)\n"
+ " (declare (in) float eta))\n"
+ " ()))\n"
+ "(function matrixCompMult\n"
+ " (signature mat2\n"
+ " (parameters\n"
+ " (declare (in) mat2 x)\n"
+ " (declare (in) mat2 y))\n"
+ " ())\n"
+ " (signature mat3\n"
+ " (parameters\n"
+ " (declare (in) mat3 x)\n"
+ " (declare (in) mat3 y))\n"
+ " ())\n"
+ " (signature mat4\n"
+ " (parameters\n"
+ " (declare (in) mat4 x)\n"
+ " (declare (in) mat4 y))\n"
+ " ()))\n"
+ "(function lessThan\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ()))\n"
+ "(function lessThanEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ()))\n"
+ "(function greaterThan\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ()))\n"
+ "(function greaterThanEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ()))\n"
+ "(function equal\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x)\n"
+ " (declare (in) bvec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x)\n"
+ " (declare (in) bvec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x)\n"
+ " (declare (in) bvec4 y))\n"
+ " ()))\n"
+ "(function notEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x)\n"
+ " (declare (in) bvec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x)\n"
+ " (declare (in) bvec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x)\n"
+ " (declare (in) bvec4 y))\n"
+ " ()))\n"
+ "(function any\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x))\n"
+ " ()))\n"
+ "(function all\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x))\n"
+ " ()))\n"
+ "(function not\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x))\n"
+ " ()))\n"
+ "(function texture2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ())))"
+;
+static const char *functions_for_100_frag [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cross,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_sign,
+ builtin_sin,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_texture2D,
+ builtin_texture2DProj,
+ builtin_textureCube,
+};
+static const char *prototypes_for_100_vert =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
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+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ()))\n"
+ "(function equal\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x)\n"
+ " (declare (in) bvec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x)\n"
+ " (declare (in) bvec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x)\n"
+ " (declare (in) bvec4 y))\n"
+ " ()))\n"
+ "(function notEqual\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x)\n"
+ " (declare (in) ivec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x)\n"
+ " (declare (in) ivec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x)\n"
+ " (declare (in) ivec4 y))\n"
+ " ())\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x)\n"
+ " (declare (in) bvec2 y))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x)\n"
+ " (declare (in) bvec3 y))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x)\n"
+ " (declare (in) bvec4 y))\n"
+ " ()))\n"
+ "(function any\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x))\n"
+ " ()))\n"
+ "(function all\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x))\n"
+ " ())\n"
+ " (signature bool\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x))\n"
+ " ()))\n"
+ "(function not\n"
+ " (signature bvec2\n"
+ " (parameters\n"
+ " (declare (in) bvec2 x))\n"
+ " ())\n"
+ " (signature bvec3\n"
+ " (parameters\n"
+ " (declare (in) bvec3 x))\n"
+ " ())\n"
+ " (signature bvec4\n"
+ " (parameters\n"
+ " (declare (in) bvec4 x))\n"
+ " ()))\n"
+ "(function texture2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ()))\n"
+ "(function texture2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function texture2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function textureCubeLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ())))"
+;
+static const char *functions_for_100_vert [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cross,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_sign,
+ builtin_sin,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_texture2D,
+ builtin_texture2DLod,
+ builtin_texture2DProj,
+ builtin_texture2DProjLod,
+ builtin_textureCube,
+ builtin_textureCubeLod,
+};
+static const char *prototypes_for_110_frag =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function mod\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function min\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function max\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function clamp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 minVal)\n"
+ " (declare (in) vec2 maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 minVal)\n"
+ " (declare (in) vec3 maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
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+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function dFdx\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function dFdy\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function fwidth\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise2\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise3\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise4\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())))"
+;
+static const char *functions_for_110_frag [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cross,
+ builtin_dFdx,
+ builtin_dFdy,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_fwidth,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_noise1,
+ builtin_noise2,
+ builtin_noise3,
+ builtin_noise4,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_shadow1D,
+ builtin_shadow1DProj,
+ builtin_shadow2D,
+ builtin_shadow2DProj,
+ builtin_sign,
+ builtin_sin,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_texture1D,
+ builtin_texture1DProj,
+ builtin_texture2D,
+ builtin_texture2DProj,
+ builtin_texture3D,
+ builtin_texture3DProj,
+ builtin_textureCube,
+};
+static const char *prototypes_for_110_vert =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function mod\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function min\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function max\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function clamp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 minVal)\n"
+ " (declare (in) vec2 maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 minVal)\n"
+ " (declare (in) vec3 maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 minVal)\n"
+ " (declare (in) vec4 maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ()))\n"
+ "(function mix\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 a))\n"
+ " ())\n"
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+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise2\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise3\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise4\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())))"
+;
+static const char *functions_for_110_vert [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cross,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_ftransform,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_noise1,
+ builtin_noise2,
+ builtin_noise3,
+ builtin_noise4,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_shadow1D,
+ builtin_shadow1DLod,
+ builtin_shadow1DProj,
+ builtin_shadow1DProjLod,
+ builtin_shadow2D,
+ builtin_shadow2DLod,
+ builtin_shadow2DProj,
+ builtin_shadow2DProjLod,
+ builtin_sign,
+ builtin_sin,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_texture1D,
+ builtin_texture1DLod,
+ builtin_texture1DProj,
+ builtin_texture1DProjLod,
+ builtin_texture2D,
+ builtin_texture2DLod,
+ builtin_texture2DProj,
+ builtin_texture2DProjLod,
+ builtin_texture3D,
+ builtin_texture3DLod,
+ builtin_texture3DProj,
+ builtin_texture3DProjLod,
+ builtin_textureCube,
+ builtin_textureCubeLod,
+};
+static const char *prototypes_for_120_frag =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function mod\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function min\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function max\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function clamp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 minVal)\n"
+ " (declare (in) vec2 maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 minVal)\n"
+ " (declare (in) vec3 maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 minVal)\n"
+ " (declare (in) vec4 maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ()))\n"
+ "(function mix\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 a))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 a))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 a))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) float a))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) float a))\n"
+ " ()))\n"
+ "(function step\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 edge)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 edge)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 edge)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float edge)\n"
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+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function dFdx\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function dFdy\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function fwidth\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise2\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise3\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise4\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())))"
+;
+static const char *functions_for_120_frag [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cross,
+ builtin_dFdx,
+ builtin_dFdy,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_fwidth,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_noise1,
+ builtin_noise2,
+ builtin_noise3,
+ builtin_noise4,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_outerProduct,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_shadow1D,
+ builtin_shadow1DProj,
+ builtin_shadow2D,
+ builtin_shadow2DProj,
+ builtin_sign,
+ builtin_sin,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_texture1D,
+ builtin_texture1DProj,
+ builtin_texture2D,
+ builtin_texture2DProj,
+ builtin_texture3D,
+ builtin_texture3DProj,
+ builtin_textureCube,
+ builtin_transpose,
+};
+static const char *prototypes_for_120_vert =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function mod\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function min\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function max\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) float y))\n"
+ " ()))\n"
+ "(function clamp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float minVal)\n"
+ " (declare (in) float maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 minVal)\n"
+ " (declare (in) vec2 maxVal))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 minVal)\n"
+ " (declare (in) vec3 maxVal))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 minVal)\n"
+ " (declare (in) vec4 maxVal))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) float minVal)\n"
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+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function texture1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float lod))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ()))\n"
+ "(function texture2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function texture2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture3D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function texture3DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function texture3DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture3DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function textureCubeLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function shadow2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function shadow1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function shadow2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function shadow1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise2\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise3\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise4\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())))"
+;
+static const char *functions_for_120_vert [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cross,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_ftransform,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_noise1,
+ builtin_noise2,
+ builtin_noise3,
+ builtin_noise4,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_outerProduct,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_shadow1D,
+ builtin_shadow1DLod,
+ builtin_shadow1DProj,
+ builtin_shadow1DProjLod,
+ builtin_shadow2D,
+ builtin_shadow2DLod,
+ builtin_shadow2DProj,
+ builtin_shadow2DProjLod,
+ builtin_sign,
+ builtin_sin,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_texture1D,
+ builtin_texture1DLod,
+ builtin_texture1DProj,
+ builtin_texture1DProjLod,
+ builtin_texture2D,
+ builtin_texture2DLod,
+ builtin_texture2DProj,
+ builtin_texture2DProjLod,
+ builtin_texture3D,
+ builtin_texture3DLod,
+ builtin_texture3DProj,
+ builtin_texture3DProjLod,
+ builtin_textureCube,
+ builtin_textureCubeLod,
+ builtin_transpose,
+};
+static const char *prototypes_for_130_frag =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function cos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function tan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function asin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function acos\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 angle))\n"
+ " ()))\n"
+ "(function atan\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y)\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y)\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y)\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y)\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float y_over_x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 y_over_x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 y_over_x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 y_over_x))\n"
+ " ()))\n"
+ "(function sinh\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function cosh\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function tanh\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function pow\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x)\n"
+ " (declare (in) float y))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x)\n"
+ " (declare (in) vec2 y))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x)\n"
+ " (declare (in) vec3 y))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x)\n"
+ " (declare (in) vec4 y))\n"
+ " ()))\n"
+ "(function exp\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function exp2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function log2\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function sqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function inversesqrt\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function abs\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature int\n"
+ " (parameters\n"
+ " (declare (in) int x))\n"
+ " ())\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x))\n"
+ " ())\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x))\n"
+ " ()))\n"
+ "(function sign\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())\n"
+ " (signature int\n"
+ " (parameters\n"
+ " (declare (in) int x))\n"
+ " ())\n"
+ " (signature ivec2\n"
+ " (parameters\n"
+ " (declare (in) ivec2 x))\n"
+ " ())\n"
+ " (signature ivec3\n"
+ " (parameters\n"
+ " (declare (in) ivec3 x))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) ivec4 x))\n"
+ " ()))\n"
+ "(function floor\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function ceil\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function fract\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
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+ " (parameters\n"
+ " (declare (in) samplerCubeShadow sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec3 dPdx)\n"
+ " (declare (in) vec3 dPdy))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1DArray sampler)\n"
+ " (declare (in) vec2 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1DArray sampler)\n"
+ " (declare (in) vec2 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2DArray sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2DArray sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArrayShadow sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ()))\n"
+ "(function textureProjGrad\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec2 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec2 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler1D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler1D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec3 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler2D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler2D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec3 dPdx)\n"
+ " (declare (in) vec3 dPdy))\n"
+ " ())\n"
+ " (signature ivec4\n"
+ " (parameters\n"
+ " (declare (in) isampler3D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec3 dPdx)\n"
+ " (declare (in) vec3 dPdy))\n"
+ " ())\n"
+ " (signature uvec4\n"
+ " (parameters\n"
+ " (declare (in) usampler3D sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec3 dPdx)\n"
+ " (declare (in) vec3 dPdy))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) float dPdx)\n"
+ " (declare (in) float dPdy))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 P)\n"
+ " (declare (in) vec2 dPdx)\n"
+ " (declare (in) vec2 dPdy))\n"
+ " ()))\n"
+ "(function texture1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float bias))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) float coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float lod))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture3D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture3DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture3DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture3DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function textureCubeLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function dFdx\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function dFdy\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function fwidth\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float p))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 p))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 p))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 p))\n"
+ " ()))\n"
+ "(function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise2\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise3\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise4\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())))"
+;
+static const char *functions_for_130_frag [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cosh,
+ builtin_cross,
+ builtin_dFdx,
+ builtin_dFdy,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_fwidth,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_noise1,
+ builtin_noise2,
+ builtin_noise3,
+ builtin_noise4,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_outerProduct,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_shadow1D,
+ builtin_shadow1DLod,
+ builtin_shadow1DProj,
+ builtin_shadow1DProjLod,
+ builtin_shadow2D,
+ builtin_shadow2DLod,
+ builtin_shadow2DProj,
+ builtin_shadow2DProjLod,
+ builtin_sign,
+ builtin_sin,
+ builtin_sinh,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_tanh,
+ builtin_texelFetch,
+ builtin_texture,
+ builtin_texture1D,
+ builtin_texture1DLod,
+ builtin_texture1DProj,
+ builtin_texture1DProjLod,
+ builtin_texture2D,
+ builtin_texture2DLod,
+ builtin_texture2DProj,
+ builtin_texture2DProjLod,
+ builtin_texture3D,
+ builtin_texture3DLod,
+ builtin_texture3DProj,
+ builtin_texture3DProjLod,
+ builtin_textureCube,
+ builtin_textureCubeLod,
+ builtin_textureGrad,
+ builtin_textureLod,
+ builtin_textureProj,
+ builtin_textureProjGrad,
+ builtin_textureProjLod,
+ builtin_transpose,
+};
+static const char *prototypes_for_130_vert =
+ "(\n"
+ "(function radians\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float degrees))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 degrees))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 degrees))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 degrees))\n"
+ " ()))\n"
+ "(function degrees\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float radians))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 radians))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 radians))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 radians))\n"
+ " ()))\n"
+ "(function sin\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float angle))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 angle))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 angle))\n"
+ " ())\n"
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+ " ()))\n"
+ "(function texture3D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture3DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture3DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture3DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler3D sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function textureCube\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function textureCubeLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) samplerCube sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2D\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2DProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DProjLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DShadow sampler)\n"
+ " (declare (in) vec4 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function noise1\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature float\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise2\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec2\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise3\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec3\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ()))\n"
+ "(function noise4\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) float x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec2 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec3 x))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) vec4 x))\n"
+ " ())))"
+;
+static const char *functions_for_130_vert [] = {
+ builtin_abs,
+ builtin_acos,
+ builtin_all,
+ builtin_any,
+ builtin_asin,
+ builtin_atan,
+ builtin_ceil,
+ builtin_clamp,
+ builtin_cos,
+ builtin_cosh,
+ builtin_cross,
+ builtin_degrees,
+ builtin_distance,
+ builtin_dot,
+ builtin_equal,
+ builtin_exp,
+ builtin_exp2,
+ builtin_faceforward,
+ builtin_floor,
+ builtin_fract,
+ builtin_ftransform,
+ builtin_greaterThan,
+ builtin_greaterThanEqual,
+ builtin_inversesqrt,
+ builtin_length,
+ builtin_lessThan,
+ builtin_lessThanEqual,
+ builtin_log,
+ builtin_log2,
+ builtin_matrixCompMult,
+ builtin_max,
+ builtin_min,
+ builtin_mix,
+ builtin_mod,
+ builtin_noise1,
+ builtin_noise2,
+ builtin_noise3,
+ builtin_noise4,
+ builtin_normalize,
+ builtin_not,
+ builtin_notEqual,
+ builtin_outerProduct,
+ builtin_pow,
+ builtin_radians,
+ builtin_reflect,
+ builtin_refract,
+ builtin_shadow1D,
+ builtin_shadow1DLod,
+ builtin_shadow1DProj,
+ builtin_shadow1DProjLod,
+ builtin_shadow2D,
+ builtin_shadow2DLod,
+ builtin_shadow2DProj,
+ builtin_shadow2DProjLod,
+ builtin_sign,
+ builtin_sin,
+ builtin_sinh,
+ builtin_smoothstep,
+ builtin_sqrt,
+ builtin_step,
+ builtin_tan,
+ builtin_tanh,
+ builtin_texelFetch,
+ builtin_texture,
+ builtin_texture1D,
+ builtin_texture1DLod,
+ builtin_texture1DProj,
+ builtin_texture1DProjLod,
+ builtin_texture2D,
+ builtin_texture2DLod,
+ builtin_texture2DProj,
+ builtin_texture2DProjLod,
+ builtin_texture3D,
+ builtin_texture3DLod,
+ builtin_texture3DProj,
+ builtin_texture3DProjLod,
+ builtin_textureCube,
+ builtin_textureCubeLod,
+ builtin_textureGrad,
+ builtin_textureLod,
+ builtin_textureProj,
+ builtin_textureProjGrad,
+ builtin_textureProjLod,
+ builtin_transpose,
+};
+static const char *prototypes_for_ARB_texture_rectangle_frag =
+ "(\n"
+ "(function texture2DRect\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ()))\n"
+ "(function texture2DRectProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function shadow2DRect\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRectShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function shadow2DRectProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRectShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())))"
+;
+static const char *functions_for_ARB_texture_rectangle_frag [] = {
+ builtin_shadow2DRect,
+ builtin_shadow2DRectProj,
+ builtin_texture2DRect,
+ builtin_texture2DRectProj,
+};
+static const char *prototypes_for_ARB_texture_rectangle_vert =
+ "(\n"
+ "(function texture2DRect\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ()))\n"
+ "(function texture2DRectProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRect sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ()))\n"
+ "(function shadow2DRect\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRectShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function shadow2DRectProj\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DRectShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())))"
+;
+static const char *functions_for_ARB_texture_rectangle_vert [] = {
+ builtin_shadow2DRect,
+ builtin_shadow2DRectProj,
+ builtin_texture2DRect,
+ builtin_texture2DRectProj,
+};
+static const char *prototypes_for_EXT_texture_array_frag =
+ "(\n"
+ "(function texture1DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function texture2DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow1DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ())\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float bias))\n"
+ " ()))\n"
+ "(function shadow2DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArrayShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())))"
+;
+static const char *functions_for_EXT_texture_array_frag [] = {
+ builtin_shadow1DArray,
+ builtin_shadow2DArray,
+ builtin_texture1DArray,
+ builtin_texture2DArray,
+};
+static const char *prototypes_for_EXT_texture_array_vert =
+ "(\n"
+ "(function texture1DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 coord))\n"
+ " ()))\n"
+ "(function texture1DArrayLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArray sampler)\n"
+ " (declare (in) vec2 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function texture2DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function texture2DArrayLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArray sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow1DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 coord))\n"
+ " ()))\n"
+ "(function shadow1DArrayLod\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler1DArrayShadow sampler)\n"
+ " (declare (in) vec3 coord)\n"
+ " (declare (in) float lod))\n"
+ " ()))\n"
+ "(function shadow2DArray\n"
+ " (signature vec4\n"
+ " (parameters\n"
+ " (declare (in) sampler2DArrayShadow sampler)\n"
+ " (declare (in) vec4 coord))\n"
+ " ())))"
+;
+static const char *functions_for_EXT_texture_array_vert [] = {
+ builtin_shadow1DArray,
+ builtin_shadow1DArrayLod,
+ builtin_shadow2DArray,
+ builtin_texture1DArray,
+ builtin_texture1DArrayLod,
+ builtin_texture2DArray,
+ builtin_texture2DArrayLod,
+};
+static gl_shader *builtin_profiles[12];
+
+void *builtin_mem_ctx = NULL;
+
+void
+_mesa_glsl_release_functions(void)
+{
+ talloc_free(builtin_mem_ctx);
+ builtin_mem_ctx = NULL;
+ memset(builtin_profiles, 0, sizeof(builtin_profiles));
+}
+
+static void
+_mesa_read_profile(struct _mesa_glsl_parse_state *state,
+ exec_list *instructions,
+ int profile_index,
+ const char *prototypes,
+ const char **functions,
+ int count)
+{
+ gl_shader *sh = builtin_profiles[profile_index];
+
+ if (sh == NULL) {
+ sh = read_builtins(GL_VERTEX_SHADER, prototypes, functions, count);
+ talloc_steal(builtin_mem_ctx, sh);
+ builtin_profiles[profile_index] = sh;
+ }
+
+ import_prototypes(sh->ir, instructions, state->symbols, state);
+ state->builtins_to_link[state->num_builtins_to_link] = sh;
+ state->num_builtins_to_link++;
+}
+
+void
+_mesa_glsl_initialize_functions(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ if (builtin_mem_ctx == NULL) {
+ builtin_mem_ctx = talloc_init("GLSL built-in functions");
+ memset(&builtin_profiles, 0, sizeof(builtin_profiles));
+ }
+
+ state->num_builtins_to_link = 0;
+
+ if (state->target == fragment_shader && state->language_version == 100) {
+ _mesa_read_profile(state, instructions, 0,
+ prototypes_for_100_frag,
+ functions_for_100_frag,
+ Elements(functions_for_100_frag));
+ }
+
+ if (state->target == vertex_shader && state->language_version == 100) {
+ _mesa_read_profile(state, instructions, 1,
+ prototypes_for_100_vert,
+ functions_for_100_vert,
+ Elements(functions_for_100_vert));
+ }
+
+ if (state->target == fragment_shader && state->language_version == 110) {
+ _mesa_read_profile(state, instructions, 2,
+ prototypes_for_110_frag,
+ functions_for_110_frag,
+ Elements(functions_for_110_frag));
+ }
+
+ if (state->target == vertex_shader && state->language_version == 110) {
+ _mesa_read_profile(state, instructions, 3,
+ prototypes_for_110_vert,
+ functions_for_110_vert,
+ Elements(functions_for_110_vert));
+ }
+
+ if (state->target == fragment_shader && state->language_version == 120) {
+ _mesa_read_profile(state, instructions, 4,
+ prototypes_for_120_frag,
+ functions_for_120_frag,
+ Elements(functions_for_120_frag));
+ }
+
+ if (state->target == vertex_shader && state->language_version == 120) {
+ _mesa_read_profile(state, instructions, 5,
+ prototypes_for_120_vert,
+ functions_for_120_vert,
+ Elements(functions_for_120_vert));
+ }
+
+ if (state->target == fragment_shader && state->language_version == 130) {
+ _mesa_read_profile(state, instructions, 6,
+ prototypes_for_130_frag,
+ functions_for_130_frag,
+ Elements(functions_for_130_frag));
+ }
+
+ if (state->target == vertex_shader && state->language_version == 130) {
+ _mesa_read_profile(state, instructions, 7,
+ prototypes_for_130_vert,
+ functions_for_130_vert,
+ Elements(functions_for_130_vert));
+ }
+
+ if (state->target == fragment_shader && state->ARB_texture_rectangle_enable) {
+ _mesa_read_profile(state, instructions, 8,
+ prototypes_for_ARB_texture_rectangle_frag,
+ functions_for_ARB_texture_rectangle_frag,
+ Elements(functions_for_ARB_texture_rectangle_frag));
+ }
+
+ if (state->target == vertex_shader && state->ARB_texture_rectangle_enable) {
+ _mesa_read_profile(state, instructions, 9,
+ prototypes_for_ARB_texture_rectangle_vert,
+ functions_for_ARB_texture_rectangle_vert,
+ Elements(functions_for_ARB_texture_rectangle_vert));
+ }
+
+ if (state->target == fragment_shader && state->EXT_texture_array_enable) {
+ _mesa_read_profile(state, instructions, 10,
+ prototypes_for_EXT_texture_array_frag,
+ functions_for_EXT_texture_array_frag,
+ Elements(functions_for_EXT_texture_array_frag));
+ }
+
+ if (state->target == vertex_shader && state->EXT_texture_array_enable) {
+ _mesa_read_profile(state, instructions, 11,
+ prototypes_for_EXT_texture_array_vert,
+ functions_for_EXT_texture_array_vert,
+ Elements(functions_for_EXT_texture_array_vert));
+ }
+
+}
diff --git a/mesalib/src/glsl/builtin_types.h b/mesalib/src/glsl/builtin_types.h
new file mode 100644
index 000000000..6dabbf0d3
--- /dev/null
+++ b/mesalib/src/glsl/builtin_types.h
@@ -0,0 +1,297 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+const glsl_type glsl_type::_error_type =
+ glsl_type(GL_INVALID_ENUM, GLSL_TYPE_ERROR, 0, 0, "");
+
+const glsl_type glsl_type::void_type =
+ glsl_type(GL_INVALID_ENUM, GLSL_TYPE_VOID, 0, 0, "void");
+
+const glsl_type *const glsl_type::error_type = & glsl_type::_error_type;
+
+/** \name Core built-in types
+ *
+ * These types exist in all versions of GLSL.
+ */
+/*@{*/
+
+const glsl_type glsl_type::builtin_core_types[] = {
+ glsl_type(GL_BOOL, GLSL_TYPE_BOOL, 1, 1, "bool"),
+ glsl_type(GL_BOOL_VEC2, GLSL_TYPE_BOOL, 2, 1, "bvec2"),
+ glsl_type(GL_BOOL_VEC3, GLSL_TYPE_BOOL, 3, 1, "bvec3"),
+ glsl_type(GL_BOOL_VEC4, GLSL_TYPE_BOOL, 4, 1, "bvec4"),
+ glsl_type(GL_INT, GLSL_TYPE_INT, 1, 1, "int"),
+ glsl_type(GL_INT_VEC2, GLSL_TYPE_INT, 2, 1, "ivec2"),
+ glsl_type(GL_INT_VEC3, GLSL_TYPE_INT, 3, 1, "ivec3"),
+ glsl_type(GL_INT_VEC4, GLSL_TYPE_INT, 4, 1, "ivec4"),
+ glsl_type(GL_FLOAT, GLSL_TYPE_FLOAT, 1, 1, "float"),
+ glsl_type(GL_FLOAT_VEC2, GLSL_TYPE_FLOAT, 2, 1, "vec2"),
+ glsl_type(GL_FLOAT_VEC3, GLSL_TYPE_FLOAT, 3, 1, "vec3"),
+ glsl_type(GL_FLOAT_VEC4, GLSL_TYPE_FLOAT, 4, 1, "vec4"),
+ glsl_type(GL_FLOAT_MAT2, GLSL_TYPE_FLOAT, 2, 2, "mat2"),
+ glsl_type(GL_FLOAT_MAT3, GLSL_TYPE_FLOAT, 3, 3, "mat3"),
+ glsl_type(GL_FLOAT_MAT4, GLSL_TYPE_FLOAT, 4, 4, "mat4"),
+ glsl_type(GL_SAMPLER_2D, GLSL_SAMPLER_DIM_2D, 0, 0, GLSL_TYPE_FLOAT,
+ "sampler2D"),
+ glsl_type(GL_SAMPLER_CUBE, GLSL_SAMPLER_DIM_CUBE, 0, 0, GLSL_TYPE_FLOAT,
+ "samplerCube"),
+};
+
+const glsl_type *const glsl_type::bool_type = & builtin_core_types[0];
+const glsl_type *const glsl_type::int_type = & builtin_core_types[4];
+const glsl_type *const glsl_type::ivec4_type = & builtin_core_types[7];
+const glsl_type *const glsl_type::float_type = & builtin_core_types[8];
+const glsl_type *const glsl_type::vec2_type = & builtin_core_types[9];
+const glsl_type *const glsl_type::vec3_type = & builtin_core_types[10];
+const glsl_type *const glsl_type::vec4_type = & builtin_core_types[11];
+const glsl_type *const glsl_type::mat2_type = & builtin_core_types[12];
+const glsl_type *const glsl_type::mat3_type = & builtin_core_types[13];
+const glsl_type *const glsl_type::mat4_type = & builtin_core_types[14];
+/*@}*/
+
+/** \name GLSL structures that have not been deprecated.
+ */
+/*@{*/
+
+static const struct glsl_struct_field gl_DepthRangeParameters_fields[] = {
+ { glsl_type::float_type, "near" },
+ { glsl_type::float_type, "far" },
+ { glsl_type::float_type, "diff" },
+};
+
+const glsl_type glsl_type::builtin_structure_types[] = {
+ glsl_type(gl_DepthRangeParameters_fields,
+ Elements(gl_DepthRangeParameters_fields),
+ "gl_DepthRangeParameters"),
+};
+/*@}*/
+
+/** \name GLSL 1.00 / 1.10 structures that are deprecated in GLSL 1.30
+ */
+/*@{*/
+
+static const struct glsl_struct_field gl_PointParameters_fields[] = {
+ { glsl_type::float_type, "size" },
+ { glsl_type::float_type, "sizeMin" },
+ { glsl_type::float_type, "sizeMax" },
+ { glsl_type::float_type, "fadeThresholdSize" },
+ { glsl_type::float_type, "distanceConstantAttenuation" },
+ { glsl_type::float_type, "distanceLinearAttenuation" },
+ { glsl_type::float_type, "distanceQuadraticAttenuation" },
+};
+
+static const struct glsl_struct_field gl_MaterialParameters_fields[] = {
+ { glsl_type::vec4_type, "emission" },
+ { glsl_type::vec4_type, "ambient" },
+ { glsl_type::vec4_type, "diffuse" },
+ { glsl_type::vec4_type, "specular" },
+ { glsl_type::float_type, "shininess" },
+};
+
+static const struct glsl_struct_field gl_LightSourceParameters_fields[] = {
+ { glsl_type::vec4_type, "ambient" },
+ { glsl_type::vec4_type, "diffuse" },
+ { glsl_type::vec4_type, "specular" },
+ { glsl_type::vec4_type, "position" },
+ { glsl_type::vec4_type, "halfVector" },
+ { glsl_type::vec3_type, "spotDirection" },
+ { glsl_type::float_type, "spotExponent" },
+ { glsl_type::float_type, "spotCutoff" },
+ { glsl_type::float_type, "spotCosCutoff" },
+ { glsl_type::float_type, "constantAttenuation" },
+ { glsl_type::float_type, "linearAttenuation" },
+ { glsl_type::float_type, "quadraticAttenuation" },
+};
+
+static const struct glsl_struct_field gl_LightModelParameters_fields[] = {
+ { glsl_type::vec4_type, "ambient" },
+};
+
+static const struct glsl_struct_field gl_LightModelProducts_fields[] = {
+ { glsl_type::vec4_type, "sceneColor" },
+};
+
+static const struct glsl_struct_field gl_LightProducts_fields[] = {
+ { glsl_type::vec4_type, "ambient" },
+ { glsl_type::vec4_type, "diffuse" },
+ { glsl_type::vec4_type, "specular" },
+};
+
+static const struct glsl_struct_field gl_FogParameters_fields[] = {
+ { glsl_type::vec4_type, "color" },
+ { glsl_type::float_type, "density" },
+ { glsl_type::float_type, "start" },
+ { glsl_type::float_type, "end" },
+ { glsl_type::float_type, "scale" },
+};
+
+const glsl_type glsl_type::builtin_110_deprecated_structure_types[] = {
+ glsl_type(gl_PointParameters_fields,
+ Elements(gl_PointParameters_fields),
+ "gl_PointParameters"),
+ glsl_type(gl_MaterialParameters_fields,
+ Elements(gl_MaterialParameters_fields),
+ "gl_MaterialParameters"),
+ glsl_type(gl_LightSourceParameters_fields,
+ Elements(gl_LightSourceParameters_fields),
+ "gl_LightSourceParameters"),
+ glsl_type(gl_LightModelParameters_fields,
+ Elements(gl_LightModelParameters_fields),
+ "gl_LightModelParameters"),
+ glsl_type(gl_LightModelProducts_fields,
+ Elements(gl_LightModelProducts_fields),
+ "gl_LightModelProducts"),
+ glsl_type(gl_LightProducts_fields,
+ Elements(gl_LightProducts_fields),
+ "gl_LightProducts"),
+ glsl_type(gl_FogParameters_fields,
+ Elements(gl_FogParameters_fields),
+ "gl_FogParameters"),
+};
+/*@}*/
+
+/** \name Types in GLSL 1.10 (but not GLSL ES 1.00)
+ */
+/*@{*/
+const glsl_type glsl_type::builtin_110_types[] = {
+ glsl_type(GL_SAMPLER_1D, GLSL_SAMPLER_DIM_1D, 0, 0, GLSL_TYPE_FLOAT,
+ "sampler1D"),
+ glsl_type(GL_SAMPLER_1D_SHADOW, GLSL_SAMPLER_DIM_1D, 1, 0, GLSL_TYPE_FLOAT,
+ "sampler1DShadow"),
+ glsl_type(GL_SAMPLER_2D_SHADOW, GLSL_SAMPLER_DIM_2D, 1, 0, GLSL_TYPE_FLOAT,
+ "sampler2DShadow"),
+ glsl_type(GL_SAMPLER_3D, GLSL_SAMPLER_DIM_3D, 0, 0, GLSL_TYPE_FLOAT,
+ "sampler3D"),
+};
+/*@}*/
+
+/** \name Types added in GLSL 1.20
+ */
+/*@{*/
+
+const glsl_type glsl_type::builtin_120_types[] = {
+ glsl_type(GL_FLOAT_MAT2x3, GLSL_TYPE_FLOAT, 3, 2, "mat2x3"),
+ glsl_type(GL_FLOAT_MAT2x4, GLSL_TYPE_FLOAT, 4, 2, "mat2x4"),
+ glsl_type(GL_FLOAT_MAT3x2, GLSL_TYPE_FLOAT, 2, 3, "mat3x2"),
+ glsl_type(GL_FLOAT_MAT3x4, GLSL_TYPE_FLOAT, 4, 3, "mat3x4"),
+ glsl_type(GL_FLOAT_MAT4x2, GLSL_TYPE_FLOAT, 2, 4, "mat4x2"),
+ glsl_type(GL_FLOAT_MAT4x3, GLSL_TYPE_FLOAT, 3, 4, "mat4x3"),
+};
+const glsl_type *const glsl_type::mat2x3_type = & builtin_120_types[0];
+const glsl_type *const glsl_type::mat2x4_type = & builtin_120_types[1];
+const glsl_type *const glsl_type::mat3x2_type = & builtin_120_types[2];
+const glsl_type *const glsl_type::mat3x4_type = & builtin_120_types[3];
+const glsl_type *const glsl_type::mat4x2_type = & builtin_120_types[4];
+const glsl_type *const glsl_type::mat4x3_type = & builtin_120_types[5];
+/*@}*/
+
+/** \name Types added in GLSL 1.30
+ */
+/*@{*/
+
+const glsl_type glsl_type::builtin_130_types[] = {
+ glsl_type(GL_UNSIGNED_INT, GLSL_TYPE_UINT, 1, 1, "uint"),
+ glsl_type(GL_UNSIGNED_INT_VEC2, GLSL_TYPE_UINT, 2, 1, "uvec2"),
+ glsl_type(GL_UNSIGNED_INT_VEC3, GLSL_TYPE_UINT, 3, 1, "uvec3"),
+ glsl_type(GL_UNSIGNED_INT_VEC4, GLSL_TYPE_UINT, 4, 1, "uvec4"),
+
+ /* 1D and 2D texture arrays - several of these are included only in
+ * builtin_EXT_texture_array_types.
+ */
+ glsl_type(GL_INT_SAMPLER_1D_ARRAY,
+ GLSL_SAMPLER_DIM_1D, 0, 1, GLSL_TYPE_INT, "isampler1DArray"),
+ glsl_type(GL_UNSIGNED_INT_SAMPLER_1D_ARRAY,
+ GLSL_SAMPLER_DIM_1D, 0, 1, GLSL_TYPE_UINT, "usampler1DArray"),
+ glsl_type(GL_INT_SAMPLER_2D_ARRAY,
+ GLSL_SAMPLER_DIM_2D, 0, 1, GLSL_TYPE_INT, "isampler2DArray"),
+ glsl_type(GL_UNSIGNED_INT_SAMPLER_2D_ARRAY,
+ GLSL_SAMPLER_DIM_2D, 0, 1, GLSL_TYPE_UINT, "usampler2DArray"),
+
+ /* cube shadow samplers */
+ glsl_type(GL_SAMPLER_CUBE_SHADOW,
+ GLSL_SAMPLER_DIM_CUBE, 1, 0, GLSL_TYPE_FLOAT, "samplerCubeShadow"),
+
+ /* signed and unsigned integer samplers */
+ glsl_type(GL_INT_SAMPLER_1D,
+ GLSL_SAMPLER_DIM_1D, 0, 0, GLSL_TYPE_INT, "isampler1D"),
+ glsl_type(GL_UNSIGNED_INT_SAMPLER_1D,
+ GLSL_SAMPLER_DIM_1D, 0, 0, GLSL_TYPE_UINT, "usampler1D"),
+ glsl_type(GL_INT_SAMPLER_2D,
+ GLSL_SAMPLER_DIM_2D, 0, 0, GLSL_TYPE_INT, "isampler2D"),
+ glsl_type(GL_UNSIGNED_INT_SAMPLER_2D,
+ GLSL_SAMPLER_DIM_2D, 0, 0, GLSL_TYPE_UINT, "usampler2D"),
+ glsl_type(GL_INT_SAMPLER_3D,
+ GLSL_SAMPLER_DIM_3D, 0, 0, GLSL_TYPE_INT, "isampler3D"),
+ glsl_type(GL_UNSIGNED_INT_SAMPLER_3D,
+ GLSL_SAMPLER_DIM_3D, 0, 0, GLSL_TYPE_UINT, "usampler3D"),
+ glsl_type(GL_INT_SAMPLER_CUBE,
+ GLSL_SAMPLER_DIM_CUBE, 0, 0, GLSL_TYPE_INT, "isamplerCube"),
+ glsl_type(GL_INT_SAMPLER_CUBE,
+ GLSL_SAMPLER_DIM_CUBE, 0, 0, GLSL_TYPE_UINT, "usamplerCube"),
+};
+
+const glsl_type *const glsl_type::uint_type = & builtin_130_types[0];
+const glsl_type *const glsl_type::uvec4_type = & builtin_130_types[3];
+/*@}*/
+
+/** \name Sampler types added by GL_ARB_texture_rectangle
+ */
+/*@{*/
+
+const glsl_type glsl_type::builtin_ARB_texture_rectangle_types[] = {
+ glsl_type(GL_SAMPLER_2D_RECT,
+ GLSL_SAMPLER_DIM_RECT, 0, 0, GLSL_TYPE_FLOAT, "sampler2DRect"),
+ glsl_type(GL_SAMPLER_2D_RECT_SHADOW,
+ GLSL_SAMPLER_DIM_RECT, 1, 0, GLSL_TYPE_FLOAT, "sampler2DRectShadow"),
+};
+/*@}*/
+
+/** \name Sampler types added by GL_EXT_texture_array
+ */
+/*@{*/
+
+const glsl_type glsl_type::builtin_EXT_texture_array_types[] = {
+ glsl_type(GL_SAMPLER_1D_ARRAY,
+ GLSL_SAMPLER_DIM_1D, 0, 1, GLSL_TYPE_FLOAT, "sampler1DArray"),
+ glsl_type(GL_SAMPLER_1D_ARRAY_SHADOW,
+ GLSL_SAMPLER_DIM_2D, 0, 1, GLSL_TYPE_FLOAT, "sampler2DArray"),
+ glsl_type(GL_SAMPLER_2D_ARRAY,
+ GLSL_SAMPLER_DIM_1D, 1, 1, GLSL_TYPE_FLOAT, "sampler1DArrayShadow"),
+ glsl_type(GL_SAMPLER_2D_ARRAY_SHADOW,
+ GLSL_SAMPLER_DIM_2D, 1, 1, GLSL_TYPE_FLOAT, "sampler2DArrayShadow"),
+};
+/*@}*/
+
+/** \name Sampler types added by GL_EXT_texture_buffer_object
+ */
+/*@{*/
+
+const glsl_type glsl_type::builtin_EXT_texture_buffer_object_types[] = {
+ glsl_type(GL_SAMPLER_BUFFER,
+ GLSL_SAMPLER_DIM_BUF, 0, 0, GLSL_TYPE_FLOAT, "samplerBuffer"),
+ glsl_type(GL_INT_SAMPLER_BUFFER,
+ GLSL_SAMPLER_DIM_BUF, 0, 0, GLSL_TYPE_INT, "isamplerBuffer"),
+ glsl_type(GL_UNSIGNED_INT_SAMPLER_BUFFER,
+ GLSL_SAMPLER_DIM_BUF, 0, 0, GLSL_TYPE_UINT, "usamplerBuffer"),
+};
+/*@}*/
diff --git a/mesalib/src/glsl/builtin_variables.h b/mesalib/src/glsl/builtin_variables.h
new file mode 100644
index 000000000..a34c67e34
--- /dev/null
+++ b/mesalib/src/glsl/builtin_variables.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "main/core.h" /* for slot numbers */
+
+struct builtin_variable {
+ enum ir_variable_mode mode;
+ int slot;
+ const char *type;
+ const char *name;
+};
+
+static const builtin_variable builtin_core_vs_variables[] = {
+ { ir_var_out, VERT_RESULT_HPOS, "vec4", "gl_Position" },
+ { ir_var_out, VERT_RESULT_PSIZ, "float", "gl_PointSize" },
+};
+
+static const builtin_variable builtin_core_fs_variables[] = {
+ { ir_var_in, FRAG_ATTRIB_WPOS, "vec4", "gl_FragCoord" },
+ { ir_var_in, FRAG_ATTRIB_FACE, "bool", "gl_FrontFacing" },
+ { ir_var_out, FRAG_RESULT_COLOR, "vec4", "gl_FragColor" },
+};
+
+static const builtin_variable builtin_100ES_fs_variables[] = {
+ { ir_var_in, FRAG_ATTRIB_PNTC, "vec2", "gl_PointCoord" },
+};
+
+static const builtin_variable builtin_110_fs_variables[] = {
+ { ir_var_out, FRAG_RESULT_DEPTH, "float", "gl_FragDepth" },
+};
+
+static const builtin_variable builtin_110_deprecated_fs_variables[] = {
+ { ir_var_in, FRAG_ATTRIB_COL0, "vec4", "gl_Color" },
+ { ir_var_in, FRAG_ATTRIB_COL1, "vec4", "gl_SecondaryColor" },
+ { ir_var_in, FRAG_ATTRIB_FOGC, "float", "gl_FogFragCoord" },
+};
+
+static const builtin_variable builtin_110_deprecated_vs_variables[] = {
+ { ir_var_in, VERT_ATTRIB_POS, "vec4", "gl_Vertex" },
+ { ir_var_in, VERT_ATTRIB_NORMAL, "vec3", "gl_Normal" },
+ { ir_var_in, VERT_ATTRIB_COLOR0, "vec4", "gl_Color" },
+ { ir_var_in, VERT_ATTRIB_COLOR1, "vec4", "gl_SecondaryColor" },
+ { ir_var_in, VERT_ATTRIB_TEX0, "vec4", "gl_MultiTexCoord0" },
+ { ir_var_in, VERT_ATTRIB_TEX1, "vec4", "gl_MultiTexCoord1" },
+ { ir_var_in, VERT_ATTRIB_TEX2, "vec4", "gl_MultiTexCoord2" },
+ { ir_var_in, VERT_ATTRIB_TEX3, "vec4", "gl_MultiTexCoord3" },
+ { ir_var_in, VERT_ATTRIB_TEX4, "vec4", "gl_MultiTexCoord4" },
+ { ir_var_in, VERT_ATTRIB_TEX5, "vec4", "gl_MultiTexCoord5" },
+ { ir_var_in, VERT_ATTRIB_TEX6, "vec4", "gl_MultiTexCoord6" },
+ { ir_var_in, VERT_ATTRIB_TEX7, "vec4", "gl_MultiTexCoord7" },
+ { ir_var_in, VERT_ATTRIB_FOG, "float", "gl_FogCoord" },
+ { ir_var_out, VERT_RESULT_HPOS, "vec4", "gl_ClipVertex" },
+ { ir_var_out, VERT_RESULT_COL0, "vec4", "gl_FrontColor" },
+ { ir_var_out, VERT_RESULT_BFC0, "vec4", "gl_BackColor" },
+ { ir_var_out, VERT_RESULT_COL1, "vec4", "gl_FrontSecondaryColor" },
+ { ir_var_out, VERT_RESULT_BFC1, "vec4", "gl_BackSecondaryColor" },
+ { ir_var_out, VERT_RESULT_FOGC, "float", "gl_FogFragCoord" },
+};
+
+static const builtin_variable builtin_120_fs_variables[] = {
+ { ir_var_in, FRAG_ATTRIB_PNTC, "vec2", "gl_PointCoord" },
+};
+
+static const builtin_variable builtin_130_vs_variables[] = {
+ { ir_var_in, -1, "int", "gl_VertexID" },
+};
+
+static const builtin_variable builtin_110_deprecated_uniforms[] = {
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrix" },
+ { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrix" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrix" },
+ { ir_var_uniform, -1, "mat3", "gl_NormalMatrix" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixInverse" },
+ { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixInverse" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixInverse" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixTranspose" },
+ { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixTranspose" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixTranspose" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewMatrixInverseTranspose" },
+ { ir_var_uniform, -1, "mat4", "gl_ProjectionMatrixInverseTranspose" },
+ { ir_var_uniform, -1, "mat4", "gl_ModelViewProjectionMatrixInverseTranspose" },
+ { ir_var_uniform, -1, "float", "gl_NormalScale" },
+ { ir_var_uniform, -1, "gl_LightModelParameters", "gl_LightModel"},
+};
+
diff --git a/mesalib/src/glsl/cl/Makefile b/mesalib/src/glsl/cl/Makefile
deleted file mode 100644
index 04a52df8c..000000000
--- a/mesalib/src/glsl/cl/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-#src/glsl/cl/Makefile
-
-TOP = ../../..
-
-include $(TOP)/configs/current
-
-LIBNAME = glslcl
-
-C_SOURCES = \
- sl_cl_parse.c
-
-include ../Makefile.template
-
diff --git a/mesalib/src/glsl/cl/sl_cl_parse.c b/mesalib/src/glsl/cl/sl_cl_parse.c
deleted file mode 100644
index 771bdfd08..000000000
--- a/mesalib/src/glsl/cl/sl_cl_parse.c
+++ /dev/null
@@ -1,3001 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include "../pp/sl_pp_public.h"
-#include "sl_cl_parse.h"
-
-
-/* revision number - increment after each change affecting emitted output */
-#define REVISION 5
-
-/* external declaration (or precision or invariant stmt) */
-#define EXTERNAL_NULL 0
-#define EXTERNAL_FUNCTION_DEFINITION 1
-#define EXTERNAL_DECLARATION 2
-#define DEFAULT_PRECISION 3
-#define INVARIANT_STMT 4
-
-/* precision */
-#define PRECISION_DEFAULT 0
-#define PRECISION_LOW 1
-#define PRECISION_MEDIUM 2
-#define PRECISION_HIGH 3
-
-/* declaration */
-#define DECLARATION_FUNCTION_PROTOTYPE 1
-#define DECLARATION_INIT_DECLARATOR_LIST 2
-
-/* function type */
-#define FUNCTION_ORDINARY 0
-#define FUNCTION_CONSTRUCTOR 1
-#define FUNCTION_OPERATOR 2
-
-/* function call type */
-#define FUNCTION_CALL_NONARRAY 0
-#define FUNCTION_CALL_ARRAY 1
-
-/* operator type */
-#define OPERATOR_ADDASSIGN 1
-#define OPERATOR_SUBASSIGN 2
-#define OPERATOR_MULASSIGN 3
-#define OPERATOR_DIVASSIGN 4
-/*#define OPERATOR_MODASSIGN 5*/
-/*#define OPERATOR_LSHASSIGN 6*/
-/*#define OPERATOR_RSHASSIGN 7*/
-/*#define OPERATOR_ORASSIGN 8*/
-/*#define OPERATOR_XORASSIGN 9*/
-/*#define OPERATOR_ANDASSIGN 10*/
-#define OPERATOR_LOGICALXOR 11
-/*#define OPERATOR_BITOR 12*/
-/*#define OPERATOR_BITXOR 13*/
-/*#define OPERATOR_BITAND 14*/
-#define OPERATOR_LESS 15
-#define OPERATOR_GREATER 16
-#define OPERATOR_LESSEQUAL 17
-#define OPERATOR_GREATEREQUAL 18
-/*#define OPERATOR_LSHIFT 19*/
-/*#define OPERATOR_RSHIFT 20*/
-#define OPERATOR_MULTIPLY 21
-#define OPERATOR_DIVIDE 22
-/*#define OPERATOR_MODULUS 23*/
-#define OPERATOR_INCREMENT 24
-#define OPERATOR_DECREMENT 25
-#define OPERATOR_PLUS 26
-#define OPERATOR_MINUS 27
-/*#define OPERATOR_COMPLEMENT 28*/
-#define OPERATOR_NOT 29
-
-/* init declarator list */
-#define DECLARATOR_NONE 0
-#define DECLARATOR_NEXT 1
-
-/* variable declaration */
-#define VARIABLE_NONE 0
-#define VARIABLE_IDENTIFIER 1
-#define VARIABLE_INITIALIZER 2
-#define VARIABLE_ARRAY_EXPLICIT 3
-#define VARIABLE_ARRAY_UNKNOWN 4
-
-/* type qualifier */
-#define TYPE_QUALIFIER_NONE 0
-#define TYPE_QUALIFIER_CONST 1
-#define TYPE_QUALIFIER_ATTRIBUTE 2
-#define TYPE_QUALIFIER_VARYING 3
-#define TYPE_QUALIFIER_UNIFORM 4
-#define TYPE_QUALIFIER_FIXEDOUTPUT 5
-#define TYPE_QUALIFIER_FIXEDINPUT 6
-
-/* invariant qualifier */
-#define TYPE_VARIANT 90
-#define TYPE_INVARIANT 91
-
-/* centroid qualifier */
-#define TYPE_CENTER 95
-#define TYPE_CENTROID 96
-
-/* layout qualifiers */
-#define LAYOUT_QUALIFIER_NONE 0
-#define LAYOUT_QUALIFIER_UPPER_LEFT 1
-#define LAYOUT_QUALIFIER_PIXEL_CENTER_INTEGER 2
-
-/* type specifier */
-#define TYPE_SPECIFIER_VOID 0
-#define TYPE_SPECIFIER_BOOL 1
-#define TYPE_SPECIFIER_BVEC2 2
-#define TYPE_SPECIFIER_BVEC3 3
-#define TYPE_SPECIFIER_BVEC4 4
-#define TYPE_SPECIFIER_INT 5
-#define TYPE_SPECIFIER_IVEC2 6
-#define TYPE_SPECIFIER_IVEC3 7
-#define TYPE_SPECIFIER_IVEC4 8
-#define TYPE_SPECIFIER_FLOAT 9
-#define TYPE_SPECIFIER_VEC2 10
-#define TYPE_SPECIFIER_VEC3 11
-#define TYPE_SPECIFIER_VEC4 12
-#define TYPE_SPECIFIER_MAT2 13
-#define TYPE_SPECIFIER_MAT3 14
-#define TYPE_SPECIFIER_MAT4 15
-#define TYPE_SPECIFIER_SAMPLER1D 16
-#define TYPE_SPECIFIER_SAMPLER2D 17
-#define TYPE_SPECIFIER_SAMPLER3D 18
-#define TYPE_SPECIFIER_SAMPLERCUBE 19
-#define TYPE_SPECIFIER_SAMPLER1DSHADOW 20
-#define TYPE_SPECIFIER_SAMPLER2DSHADOW 21
-#define TYPE_SPECIFIER_SAMPLER2DRECT 22
-#define TYPE_SPECIFIER_SAMPLER2DRECTSHADOW 23
-#define TYPE_SPECIFIER_STRUCT 24
-#define TYPE_SPECIFIER_TYPENAME 25
-
-/* OpenGL 2.1 */
-#define TYPE_SPECIFIER_MAT23 26
-#define TYPE_SPECIFIER_MAT32 27
-#define TYPE_SPECIFIER_MAT24 28
-#define TYPE_SPECIFIER_MAT42 29
-#define TYPE_SPECIFIER_MAT34 30
-#define TYPE_SPECIFIER_MAT43 31
-
-/* GL_EXT_texture_array */
-#define TYPE_SPECIFIER_SAMPLER_1D_ARRAY 32
-#define TYPE_SPECIFIER_SAMPLER_2D_ARRAY 33
-#define TYPE_SPECIFIER_SAMPLER_1D_ARRAY_SHADOW 34
-#define TYPE_SPECIFIER_SAMPLER_2D_ARRAY_SHADOW 35
-
-/* type specifier array */
-#define TYPE_SPECIFIER_NONARRAY 0
-#define TYPE_SPECIFIER_ARRAY 1
-
-/* structure field */
-#define FIELD_NONE 0
-#define FIELD_NEXT 1
-#define FIELD_ARRAY 2
-
-/* operation */
-#define OP_END 0
-#define OP_BLOCK_BEGIN_NO_NEW_SCOPE 1
-#define OP_BLOCK_BEGIN_NEW_SCOPE 2
-#define OP_DECLARE 3
-#define OP_ASM 4
-#define OP_BREAK 5
-#define OP_CONTINUE 6
-#define OP_DISCARD 7
-#define OP_RETURN 8
-#define OP_EXPRESSION 9
-#define OP_IF 10
-#define OP_WHILE 11
-#define OP_DO 12
-#define OP_FOR 13
-#define OP_PUSH_VOID 14
-#define OP_PUSH_BOOL 15
-#define OP_PUSH_INT 16
-#define OP_PUSH_FLOAT 17
-#define OP_PUSH_IDENTIFIER 18
-#define OP_SEQUENCE 19
-#define OP_ASSIGN 20
-#define OP_ADDASSIGN 21
-#define OP_SUBASSIGN 22
-#define OP_MULASSIGN 23
-#define OP_DIVASSIGN 24
-/*#define OP_MODASSIGN 25*/
-/*#define OP_LSHASSIGN 26*/
-/*#define OP_RSHASSIGN 27*/
-/*#define OP_ORASSIGN 28*/
-/*#define OP_XORASSIGN 29*/
-/*#define OP_ANDASSIGN 30*/
-#define OP_SELECT 31
-#define OP_LOGICALOR 32
-#define OP_LOGICALXOR 33
-#define OP_LOGICALAND 34
-/*#define OP_BITOR 35*/
-/*#define OP_BITXOR 36*/
-/*#define OP_BITAND 37*/
-#define OP_EQUAL 38
-#define OP_NOTEQUAL 39
-#define OP_LESS 40
-#define OP_GREATER 41
-#define OP_LESSEQUAL 42
-#define OP_GREATEREQUAL 43
-/*#define OP_LSHIFT 44*/
-/*#define OP_RSHIFT 45*/
-#define OP_ADD 46
-#define OP_SUBTRACT 47
-#define OP_MULTIPLY 48
-#define OP_DIVIDE 49
-/*#define OP_MODULUS 50*/
-#define OP_PREINCREMENT 51
-#define OP_PREDECREMENT 52
-#define OP_PLUS 53
-#define OP_MINUS 54
-/*#define OP_COMPLEMENT 55*/
-#define OP_NOT 56
-#define OP_SUBSCRIPT 57
-#define OP_CALL 58
-#define OP_FIELD 59
-#define OP_POSTINCREMENT 60
-#define OP_POSTDECREMENT 61
-#define OP_PRECISION 62
-#define OP_METHOD 63
-
-/* parameter qualifier */
-#define PARAM_QUALIFIER_IN 0
-#define PARAM_QUALIFIER_OUT 1
-#define PARAM_QUALIFIER_INOUT 2
-
-/* function parameter */
-#define PARAMETER_NONE 0
-#define PARAMETER_NEXT 1
-
-/* function parameter array presence */
-#define PARAMETER_ARRAY_NOT_PRESENT 0
-#define PARAMETER_ARRAY_PRESENT 1
-
-
-struct parse_dict {
- int _void;
- int _float;
- int _int;
- int _bool;
- int vec2;
- int vec3;
- int vec4;
- int bvec2;
- int bvec3;
- int bvec4;
- int ivec2;
- int ivec3;
- int ivec4;
- int mat2;
- int mat3;
- int mat4;
- int mat2x3;
- int mat3x2;
- int mat2x4;
- int mat4x2;
- int mat3x4;
- int mat4x3;
- int sampler1D;
- int sampler2D;
- int sampler3D;
- int samplerCube;
- int sampler1DShadow;
- int sampler2DShadow;
- int sampler2DRect;
- int sampler2DRectShadow;
- int sampler1DArray;
- int sampler2DArray;
- int sampler1DArrayShadow;
- int sampler2DArrayShadow;
-
- int invariant;
-
- int centroid;
-
- int precision;
- int lowp;
- int mediump;
- int highp;
-
- int _const;
- int attribute;
- int varying;
- int uniform;
- int __fixed_output;
- int __fixed_input;
-
- int in;
- int out;
- int inout;
-
- int layout;
- int origin_upper_left;
- int pixel_center_integer;
-
- int _struct;
-
- int __constructor;
- int __operator;
- int ___asm;
-
- int _if;
- int _else;
- int _for;
- int _while;
- int _do;
-
- int _continue;
- int _break;
- int _return;
- int discard;
-
- int _false;
- int _true;
-
- int all;
- int _GL_ARB_fragment_coord_conventions;
-};
-
-
-struct parse_context {
- struct sl_pp_context *context;
-
- struct parse_dict dict;
-
- struct sl_pp_token_info *tokens;
- unsigned int tokens_read;
- unsigned int tokens_cap;
-
- unsigned char *out_buf;
- unsigned int out_cap;
-
- unsigned int shader_type;
- unsigned int parsing_builtin;
-
- unsigned int fragment_coord_conventions:1;
-
- char error[256];
- int process_error;
-};
-
-
-struct parse_state {
- unsigned int in;
- unsigned int out;
-};
-
-
-static unsigned int
-_emit(struct parse_context *ctx,
- unsigned int *out,
- unsigned char b)
-{
- if (*out == ctx->out_cap) {
- ctx->out_cap += 4096;
- ctx->out_buf = (unsigned char *)realloc(ctx->out_buf, ctx->out_cap * sizeof(unsigned char));
- }
- ctx->out_buf[*out] = b;
- return (*out)++;
-}
-
-
-static void
-_update(struct parse_context *ctx,
- unsigned int out,
- unsigned char b)
-{
- ctx->out_buf[out] = b;
-}
-
-
-static void
-_error(struct parse_context *ctx,
- const char *msg)
-{
- if (ctx->error[0] == '\0') {
- strncpy(ctx->error, msg, sizeof(ctx->error) - 1);
- ctx->error[sizeof(ctx->error) - 1] = '\0';
- }
-}
-
-
-static const struct sl_pp_token_info *
-_fetch_token(struct parse_context *ctx,
- unsigned int pos)
-{
- if (ctx->process_error) {
- return NULL;
- }
-
- while (pos >= ctx->tokens_read) {
- if (ctx->tokens_read == ctx->tokens_cap) {
- ctx->tokens_cap += 1024;
- ctx->tokens = realloc(ctx->tokens,
- ctx->tokens_cap * sizeof(struct sl_pp_token_info));
- if (!ctx->tokens) {
- _error(ctx, "out of memory");
- ctx->process_error = 1;
- return NULL;
- }
- }
- if (sl_pp_process_get(ctx->context, &ctx->tokens[ctx->tokens_read])) {
- _error(ctx, sl_pp_context_error_message(ctx->context));
- ctx->process_error = 1;
- return NULL;
- }
- switch (ctx->tokens[ctx->tokens_read].token) {
- case SL_PP_COMMA:
- case SL_PP_SEMICOLON:
- case SL_PP_LBRACE:
- case SL_PP_RBRACE:
- case SL_PP_LPAREN:
- case SL_PP_RPAREN:
- case SL_PP_LBRACKET:
- case SL_PP_RBRACKET:
- case SL_PP_DOT:
- case SL_PP_INCREMENT:
- case SL_PP_ADDASSIGN:
- case SL_PP_PLUS:
- case SL_PP_DECREMENT:
- case SL_PP_SUBASSIGN:
- case SL_PP_MINUS:
- case SL_PP_BITNOT:
- case SL_PP_NOTEQUAL:
- case SL_PP_NOT:
- case SL_PP_MULASSIGN:
- case SL_PP_STAR:
- case SL_PP_DIVASSIGN:
- case SL_PP_SLASH:
- case SL_PP_MODASSIGN:
- case SL_PP_MODULO:
- case SL_PP_LSHIFTASSIGN:
- case SL_PP_LSHIFT:
- case SL_PP_LESSEQUAL:
- case SL_PP_LESS:
- case SL_PP_RSHIFTASSIGN:
- case SL_PP_RSHIFT:
- case SL_PP_GREATEREQUAL:
- case SL_PP_GREATER:
- case SL_PP_EQUAL:
- case SL_PP_ASSIGN:
- case SL_PP_AND:
- case SL_PP_BITANDASSIGN:
- case SL_PP_BITAND:
- case SL_PP_XOR:
- case SL_PP_BITXORASSIGN:
- case SL_PP_BITXOR:
- case SL_PP_OR:
- case SL_PP_BITORASSIGN:
- case SL_PP_BITOR:
- case SL_PP_QUESTION:
- case SL_PP_COLON:
- case SL_PP_IDENTIFIER:
- case SL_PP_UINT:
- case SL_PP_FLOAT:
- case SL_PP_EXTENSION_REQUIRE:
- case SL_PP_EXTENSION_ENABLE:
- case SL_PP_EXTENSION_WARN:
- case SL_PP_EXTENSION_DISABLE:
- case SL_PP_EOF:
- ctx->tokens_read++;
- break;
- default:
- ; /* no-op */
- }
- }
- return &ctx->tokens[pos];
-}
-
-
-/**
- * Try to parse/match a particular token.
- * \return 0 for success, -1 for error.
- */
-static int
-_parse_token(struct parse_context *ctx,
- enum sl_pp_token token,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
-
- if (input && input->token == token) {
- ps->in++;
- return 0;
- }
- return -1;
-}
-
-
-/**
- * Try to parse an identifer.
- * \return 0 for success, -1 for error
- */
-static int
-_parse_id(struct parse_context *ctx,
- int id,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
-
- if (input && input->token == SL_PP_IDENTIFIER && input->data.identifier == id) {
- ps->in++;
- return 0;
- }
- return -1;
-}
-
-
-static int
-_parse_identifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
-
- if (input && input->token == SL_PP_IDENTIFIER) {
- const char *cstr = sl_pp_context_cstr(ctx->context, input->data.identifier);
-
- do {
- _emit(ctx, &ps->out, *cstr);
- } while (*cstr++);
- ps->in++;
- return 0;
- }
- return -1;
-}
-
-
-static int
-_parse_float(struct parse_context *ctx,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
-
- if (input && input->token == SL_PP_FLOAT) {
- const char *cstr = sl_pp_context_cstr(ctx->context, input->data._float);
-
- _emit(ctx, &ps->out, 1);
- do {
- _emit(ctx, &ps->out, *cstr);
- } while (*cstr++);
- ps->in++;
- return 0;
- }
- return -1;
-}
-
-
-static int
-_parse_uint(struct parse_context *ctx,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
-
- if (input && input->token == SL_PP_UINT) {
- const char *cstr = sl_pp_context_cstr(ctx->context, input->data._uint);
-
- _emit(ctx, &ps->out, 1);
- do {
- _emit(ctx, &ps->out, *cstr);
- } while (*cstr++);
- ps->in++;
- return 0;
- }
- return -1;
-}
-
-
-/**************************************/
-
-
-static int
-_parse_unary_expression(struct parse_context *ctx,
- struct parse_state *ps);
-
-static int
-_parse_conditional_expression(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_constant_expression(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_primary_expression(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_statement(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_type_specifier(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_declaration(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_statement_list(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_assignment_expression(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_precision(struct parse_context *ctx,
- struct parse_state *ps);
-
-
-static int
-_parse_overriden_operator(struct parse_context *ctx,
- struct parse_state *ps)
-{
- unsigned int op;
-
- if (_parse_token(ctx, SL_PP_INCREMENT, ps) == 0) {
- op = OPERATOR_INCREMENT;
- } else if (_parse_token(ctx, SL_PP_ADDASSIGN, ps) == 0) {
- op = OPERATOR_ADDASSIGN;
- } else if (_parse_token(ctx, SL_PP_PLUS, ps) == 0) {
- op = OPERATOR_PLUS;
- } else if (_parse_token(ctx, SL_PP_DECREMENT, ps) == 0) {
- op = OPERATOR_DECREMENT;
- } else if (_parse_token(ctx, SL_PP_SUBASSIGN, ps) == 0) {
- op = OPERATOR_SUBASSIGN;
- } else if (_parse_token(ctx, SL_PP_MINUS, ps) == 0) {
- op = OPERATOR_MINUS;
- } else if (_parse_token(ctx, SL_PP_NOT, ps) == 0) {
- op = OPERATOR_NOT;
- } else if (_parse_token(ctx, SL_PP_MULASSIGN, ps) == 0) {
- op = OPERATOR_MULASSIGN;
- } else if (_parse_token(ctx, SL_PP_STAR, ps) == 0) {
- op = OPERATOR_MULTIPLY;
- } else if (_parse_token(ctx, SL_PP_DIVASSIGN, ps) == 0) {
- op = OPERATOR_DIVASSIGN;
- } else if (_parse_token(ctx, SL_PP_SLASH, ps) == 0) {
- op = OPERATOR_DIVIDE;
- } else if (_parse_token(ctx, SL_PP_LESSEQUAL, ps) == 0) {
- op = OPERATOR_LESSEQUAL;
- } else if (_parse_token(ctx, SL_PP_LESS, ps) == 0) {
- op = OPERATOR_LESS;
- } else if (_parse_token(ctx, SL_PP_GREATEREQUAL, ps) == 0) {
- op = OPERATOR_GREATEREQUAL;
- } else if (_parse_token(ctx, SL_PP_GREATER, ps) == 0) {
- op = OPERATOR_GREATER;
- } else if (_parse_token(ctx, SL_PP_XOR, ps) == 0) {
- op = OPERATOR_LOGICALXOR;
- } else {
- return -1;
- }
-
- _emit(ctx, &ps->out, op);
- return 0;
-}
-
-
-static int
-_parse_function_decl_identifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, 0);
-
- if (ctx->parsing_builtin && _parse_id(ctx, ctx->dict.__constructor, &p) == 0) {
- _update(ctx, e, FUNCTION_CONSTRUCTOR);
- *ps = p;
- return 0;
- }
-
- if (ctx->parsing_builtin && _parse_id(ctx, ctx->dict.__operator, &p) == 0) {
- _update(ctx, e, FUNCTION_OPERATOR);
- if (_parse_overriden_operator(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
- return -1;
- }
-
- if (_parse_identifier(ctx, &p) == 0) {
- _update(ctx, e, FUNCTION_ORDINARY);
- *ps = p;
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_invariant_qualifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_id(ctx, ctx->dict.invariant, ps)) {
- return -1;
- }
- _emit(ctx, &ps->out, TYPE_INVARIANT);
- return 0;
-}
-
-
-static int
-_parse_centroid_qualifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_id(ctx, ctx->dict.centroid, ps)) {
- return -1;
- }
- _emit(ctx, &ps->out, TYPE_CENTROID);
- return 0;
-}
-
-
-static int
-_parse_layout_qualifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_id(ctx, ctx->dict.layout, ps) == 0) {
- if (!ctx->fragment_coord_conventions) {
- _error(ctx, "GL_ARB_fragment_coord_conventions extension must be enabled "
- "in order to use a layout qualifier");
- return -1;
- }
-
- /* Layout qualifiers are only defined for fragment shaders,
- * so do an early check.
- */
- if (ctx->shader_type != 1) {
- _error(ctx, "layout qualifiers are only valid for fragment shaders");
- return -1;
- }
-
- /* start of a parenthesised list of layout qualifiers */
-
- if (_parse_token(ctx, SL_PP_LPAREN, ps)) {
- _error(ctx, "expected `('");
- return -1;
- }
-
- /* parse comma-separated ID list */
- while (1) {
- if (_parse_id(ctx, ctx->dict.origin_upper_left, ps) == 0) {
- _emit(ctx, &ps->out, LAYOUT_QUALIFIER_UPPER_LEFT);
- }
- else if (_parse_id(ctx, ctx->dict.pixel_center_integer, ps) == 0) {
- _emit(ctx, &ps->out, LAYOUT_QUALIFIER_PIXEL_CENTER_INTEGER);
- }
- else {
- _error(ctx, "expected a layout qualifier name");
- return -1;
- }
-
- if (_parse_token(ctx, SL_PP_RPAREN, ps) == 0) {
- /* all done */
- break;
- }
- else if (_parse_token(ctx, SL_PP_COMMA, ps) == 0) {
- /* another layout qualifier is coming */
- }
- else {
- _error(ctx, "expected `,' or `)'");
- return -1;
- }
- }
- }
-
- return 0;
-}
-
-
-static int
-_parse_storage_qualifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- const struct sl_pp_token_info *input = _fetch_token(ctx, p.in);
- unsigned int e = _emit(ctx, &p.out, 0);
- int id;
-
- if (!input || input->token != SL_PP_IDENTIFIER) {
- return -1;
- }
- id = input->data.identifier;
-
- if (id == ctx->dict._const) {
- _update(ctx, e, TYPE_QUALIFIER_CONST);
- } else if (ctx->shader_type == 2 && id == ctx->dict.attribute) {
- _update(ctx, e, TYPE_QUALIFIER_ATTRIBUTE);
- } else if (id == ctx->dict.varying) {
- _update(ctx, e, TYPE_QUALIFIER_VARYING);
- } else if (id == ctx->dict.uniform) {
- _update(ctx, e, TYPE_QUALIFIER_UNIFORM);
- } else if (ctx->parsing_builtin && id == ctx->dict.__fixed_output) {
- _update(ctx, e, TYPE_QUALIFIER_FIXEDOUTPUT);
- } else if (ctx->parsing_builtin && id == ctx->dict.__fixed_input) {
- _update(ctx, e, TYPE_QUALIFIER_FIXEDINPUT);
- } else {
- return -1;
- }
- _parse_token(ctx, SL_PP_IDENTIFIER, &p);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_struct_declarator(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e;
-
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- e = _emit(ctx, &p.out, FIELD_NONE);
- *ps = p;
-
- if (_parse_token(ctx, SL_PP_LBRACKET, &p)) {
- return 0;
- }
- if (_parse_constant_expression(ctx, &p)) {
- _error(ctx, "expected constant integral expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p)) {
- _error(ctx, "expected `]'");
- return -1;
- }
- _update(ctx, e, FIELD_ARRAY);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_struct_declarator_list(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_struct_declarator(ctx, &p)) {
- return -1;
- }
-
- for (;;) {
- *ps = p;
- _emit(ctx, &p.out, FIELD_NEXT);
- if (_parse_token(ctx, SL_PP_COMMA, &p)) {
- return 0;
- }
- if (_parse_struct_declarator(ctx, &p)) {
- return 0;
- }
- }
-}
-
-
-static int
-_parse_struct_declaration(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_type_specifier(ctx, &p)) {
- return -1;
- }
- if (_parse_struct_declarator_list(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, FIELD_NONE);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_struct_declaration_list(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_struct_declaration(ctx, &p)) {
- return -1;
- }
-
- for (;;) {
- *ps = p;
- _emit(ctx, &p.out, FIELD_NEXT);
- if (_parse_struct_declaration(ctx, &p)) {
- return 0;
- }
- }
-}
-
-
-static int
-_parse_struct_specifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_id(ctx, ctx->dict._struct, &p)) {
- return -1;
- }
- if (_parse_identifier(ctx, &p)) {
- _emit(ctx, &p.out, '\0');
- }
- if (_parse_token(ctx, SL_PP_LBRACE, &p)) {
- _error(ctx, "expected `{'");
- return -1;
- }
- if (_parse_struct_declaration_list(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACE, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, FIELD_NONE);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_type_specifier_nonarray(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, 0);
- const struct sl_pp_token_info *input;
- int id;
-
- if (_parse_struct_specifier(ctx, &p) == 0) {
- _update(ctx, e, TYPE_SPECIFIER_STRUCT);
- *ps = p;
- return 0;
- }
-
- input = _fetch_token(ctx, p.in);
- if (!input || input->token != SL_PP_IDENTIFIER) {
- return -1;
- }
- id = input->data.identifier;
-
- if (id == ctx->dict._void) {
- _update(ctx, e, TYPE_SPECIFIER_VOID);
- } else if (id == ctx->dict._float) {
- _update(ctx, e, TYPE_SPECIFIER_FLOAT);
- } else if (id == ctx->dict._int) {
- _update(ctx, e, TYPE_SPECIFIER_INT);
- } else if (id == ctx->dict._bool) {
- _update(ctx, e, TYPE_SPECIFIER_BOOL);
- } else if (id == ctx->dict.vec2) {
- _update(ctx, e, TYPE_SPECIFIER_VEC2);
- } else if (id == ctx->dict.vec3) {
- _update(ctx, e, TYPE_SPECIFIER_VEC3);
- } else if (id == ctx->dict.vec4) {
- _update(ctx, e, TYPE_SPECIFIER_VEC4);
- } else if (id == ctx->dict.bvec2) {
- _update(ctx, e, TYPE_SPECIFIER_BVEC2);
- } else if (id == ctx->dict.bvec3) {
- _update(ctx, e, TYPE_SPECIFIER_BVEC3);
- } else if (id == ctx->dict.bvec4) {
- _update(ctx, e, TYPE_SPECIFIER_BVEC4);
- } else if (id == ctx->dict.ivec2) {
- _update(ctx, e, TYPE_SPECIFIER_IVEC2);
- } else if (id == ctx->dict.ivec3) {
- _update(ctx, e, TYPE_SPECIFIER_IVEC3);
- } else if (id == ctx->dict.ivec4) {
- _update(ctx, e, TYPE_SPECIFIER_IVEC4);
- } else if (id == ctx->dict.mat2) {
- _update(ctx, e, TYPE_SPECIFIER_MAT2);
- } else if (id == ctx->dict.mat3) {
- _update(ctx, e, TYPE_SPECIFIER_MAT3);
- } else if (id == ctx->dict.mat4) {
- _update(ctx, e, TYPE_SPECIFIER_MAT4);
- } else if (id == ctx->dict.mat2x3) {
- _update(ctx, e, TYPE_SPECIFIER_MAT23);
- } else if (id == ctx->dict.mat3x2) {
- _update(ctx, e, TYPE_SPECIFIER_MAT32);
- } else if (id == ctx->dict.mat2x4) {
- _update(ctx, e, TYPE_SPECIFIER_MAT24);
- } else if (id == ctx->dict.mat4x2) {
- _update(ctx, e, TYPE_SPECIFIER_MAT42);
- } else if (id == ctx->dict.mat3x4) {
- _update(ctx, e, TYPE_SPECIFIER_MAT34);
- } else if (id == ctx->dict.mat4x3) {
- _update(ctx, e, TYPE_SPECIFIER_MAT43);
- } else if (id == ctx->dict.sampler1D) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER1D);
- } else if (id == ctx->dict.sampler2D) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER2D);
- } else if (id == ctx->dict.sampler3D) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER3D);
- } else if (id == ctx->dict.samplerCube) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLERCUBE);
- } else if (id == ctx->dict.sampler1DShadow) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER1DSHADOW);
- } else if (id == ctx->dict.sampler2DShadow) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER2DSHADOW);
- } else if (id == ctx->dict.sampler2DRect) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER2DRECT);
- } else if (id == ctx->dict.sampler2DRectShadow) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER2DRECTSHADOW);
- } else if (id == ctx->dict.sampler1DArray) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER_1D_ARRAY);
- } else if (id == ctx->dict.sampler2DArray) {
- /* XXX check for GL_EXT_texture_array */
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER_2D_ARRAY);
- } else if (id == ctx->dict.sampler1DArrayShadow) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER_1D_ARRAY_SHADOW);
- } else if (id == ctx->dict.sampler2DArrayShadow) {
- _update(ctx, e, TYPE_SPECIFIER_SAMPLER_2D_ARRAY_SHADOW);
- } else if (_parse_identifier(ctx, &p) == 0) {
- _update(ctx, e, TYPE_SPECIFIER_TYPENAME);
- *ps = p;
- return 0;
- } else {
- return -1;
- }
-
- _parse_token(ctx, SL_PP_IDENTIFIER, &p);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_type_specifier_array(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACKET, &p)) {
- return -1;
- }
- if (_parse_constant_expression(ctx, &p)) {
- _error(ctx, "expected constant integral expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p)) {
- _error(ctx, "expected `]'");
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_type_specifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e;
-
- if (_parse_type_specifier_nonarray(ctx, &p)) {
- return -1;
- }
-
- e = _emit(ctx, &p.out, TYPE_SPECIFIER_ARRAY);
- if (_parse_type_specifier_array(ctx, &p)) {
- _update(ctx, e, TYPE_SPECIFIER_NONARRAY);
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_fully_specified_type(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_layout_qualifier(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, LAYOUT_QUALIFIER_NONE);
-
- if (_parse_invariant_qualifier(ctx, &p)) {
- _emit(ctx, &p.out, TYPE_VARIANT);
- }
-
- if (_parse_centroid_qualifier(ctx, &p)) {
- _emit(ctx, &p.out, TYPE_CENTER);
- }
- if (_parse_storage_qualifier(ctx, &p)) {
- _emit(ctx, &p.out, TYPE_QUALIFIER_NONE);
- }
- if (_parse_precision(ctx, &p)) {
- _emit(ctx, &p.out, PRECISION_DEFAULT);
- }
- if (_parse_type_specifier(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_function_header(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_fully_specified_type(ctx, &p)) {
- return -1;
- }
- if (_parse_function_decl_identifier(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_parameter_qualifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- unsigned int e = _emit(ctx, &ps->out, PARAM_QUALIFIER_IN);
-
- if (_parse_id(ctx, ctx->dict.out, ps) == 0) {
- _update(ctx, e, PARAM_QUALIFIER_OUT);
- } else if (_parse_id(ctx, ctx->dict.inout, ps) == 0) {
- _update(ctx, e, PARAM_QUALIFIER_INOUT);
- } else {
- _parse_id(ctx, ctx->dict.in, ps);
- }
- return 0;
-}
-
-
-static int
-_parse_function_identifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p;
- unsigned int e;
-
- if (_parse_identifier(ctx, ps)) {
- return -1;
- }
- e = _emit(ctx, &ps->out, FUNCTION_CALL_NONARRAY);
-
- p = *ps;
- if (_parse_token(ctx, SL_PP_LBRACKET, &p)) {
- return 0;
- }
- if (_parse_constant_expression(ctx, &p)) {
- _error(ctx, "expected constant integral expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p)) {
- _error(ctx, "expected `]'");
- return -1;
- }
- _update(ctx, e, FUNCTION_CALL_ARRAY);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_function_call_header(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_function_identifier(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_assign_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int op;
-
- if (_parse_unary_expression(ctx, &p)) {
- return -1;
- }
-
- if (_parse_token(ctx, SL_PP_ASSIGN, &p) == 0) {
- op = OP_ASSIGN;
- } else if (_parse_token(ctx, SL_PP_MULASSIGN, &p) == 0) {
- op = OP_MULASSIGN;
- } else if (_parse_token(ctx, SL_PP_DIVASSIGN, &p) == 0) {
- op = OP_DIVASSIGN;
- } else if (_parse_token(ctx, SL_PP_ADDASSIGN, &p) == 0) {
- op = OP_ADDASSIGN;
- } else if (_parse_token(ctx, SL_PP_SUBASSIGN, &p) == 0) {
- op = OP_SUBASSIGN;
- } else {
- return -1;
- }
-
- if (_parse_assignment_expression(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, op);
-
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_assignment_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_assign_expression(ctx, ps) == 0) {
- return 0;
- }
-
- if (_parse_conditional_expression(ctx, ps) == 0) {
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_function_call_header_with_parameters(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_function_call_header(ctx, &p)) {
- return -1;
- }
- if (_parse_assignment_expression(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_COMMA, &p)) {
- return 0;
- }
- if (_parse_assignment_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_END);
- }
-}
-
-
-static int
-_parse_function_call_header_no_parameters(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_function_call_header(ctx, ps)) {
- return -1;
- }
- _parse_id(ctx, ctx->dict._void, ps);
- return 0;
-}
-
-
-static int
-_parse_function_call_generic(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_function_call_header_with_parameters(ctx, &p) == 0) {
- if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) {
- *ps = p;
- return 0;
- }
- _error(ctx, "expected `)'");
- return -1;
- }
-
- p = *ps;
- if (_parse_function_call_header_no_parameters(ctx, &p) == 0) {
- if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) {
- *ps = p;
- return 0;
- }
- _error(ctx, "expected `)'");
- return -1;
- }
-
- return -1;
-}
-
-
-static int
-_parse_method_call(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_METHOD);
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_DOT, &p)) {
- return -1;
- }
- if (_parse_function_call_generic(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_regular_function_call(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_CALL);
- if (_parse_function_call_generic(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_function_call(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_regular_function_call(ctx, ps) == 0) {
- return 0;
- }
-
- if (_parse_method_call(ctx, ps) == 0) {
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_assignment_expression(ctx, &p)) {
- return -1;
- }
-
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_COMMA, &p)) {
- return 0;
- }
- if (_parse_assignment_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_SEQUENCE);
- }
-}
-
-
-static int
-_parse_postfix_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p;
-
- if (_parse_function_call(ctx, ps)) {
- if (_parse_primary_expression(ctx, ps)) {
- return -1;
- }
- }
-
- for (p = *ps;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_INCREMENT, &p) == 0) {
- _emit(ctx, &p.out, OP_POSTINCREMENT);
- } else if (_parse_token(ctx, SL_PP_DECREMENT, &p) == 0) {
- _emit(ctx, &p.out, OP_POSTDECREMENT);
- } else if (_parse_token(ctx, SL_PP_LBRACKET, &p) == 0) {
- if (_parse_expression(ctx, &p)) {
- _error(ctx, "expected an integral expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p)) {
- _error(ctx, "expected `]'");
- return -1;
- }
- _emit(ctx, &p.out, OP_SUBSCRIPT);
- } else if (_parse_token(ctx, SL_PP_DOT, &p) == 0) {
- _emit(ctx, &p.out, OP_FIELD);
- if (_parse_identifier(ctx, &p)) {
- return 0;
- }
- } else {
- return 0;
- }
- }
-}
-
-
-static int
-_parse_unary_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p;
- unsigned int op;
-
- if (_parse_postfix_expression(ctx, ps) == 0) {
- return 0;
- }
-
- p = *ps;
- if (_parse_token(ctx, SL_PP_INCREMENT, &p) == 0) {
- op = OP_PREINCREMENT;
- } else if (_parse_token(ctx, SL_PP_DECREMENT, &p) == 0) {
- op = OP_PREDECREMENT;
- } else if (_parse_token(ctx, SL_PP_PLUS, &p) == 0) {
- op = OP_PLUS;
- } else if (_parse_token(ctx, SL_PP_MINUS, &p) == 0) {
- op = OP_MINUS;
- } else if (_parse_token(ctx, SL_PP_NOT, &p) == 0) {
- op = OP_NOT;
- } else {
- return -1;
- }
-
- if (_parse_unary_expression(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, op);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_multiplicative_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_unary_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- unsigned int op;
-
- *ps = p;
- if (_parse_token(ctx, SL_PP_STAR, &p) == 0) {
- op = OP_MULTIPLY;
- } else if (_parse_token(ctx, SL_PP_SLASH, &p) == 0) {
- op = OP_DIVIDE;
- } else {
- return 0;
- }
- if (_parse_unary_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, op);
- }
-}
-
-
-static int
-_parse_additive_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_multiplicative_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- unsigned int op;
-
- *ps = p;
- if (_parse_token(ctx, SL_PP_PLUS, &p) == 0) {
- op = OP_ADD;
- } else if (_parse_token(ctx, SL_PP_MINUS, &p) == 0) {
- op = OP_SUBTRACT;
- } else {
- return 0;
- }
- if (_parse_multiplicative_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, op);
- }
-}
-
-
-static int
-_parse_relational_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_additive_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- unsigned int op;
-
- *ps = p;
- if (_parse_token(ctx, SL_PP_LESS, &p) == 0) {
- op = OP_LESS;
- } else if (_parse_token(ctx, SL_PP_GREATER, &p) == 0) {
- op = OP_GREATER;
- } else if (_parse_token(ctx, SL_PP_LESSEQUAL, &p) == 0) {
- op = OP_LESSEQUAL;
- } else if (_parse_token(ctx, SL_PP_GREATEREQUAL, &p) == 0) {
- op = OP_GREATEREQUAL;
- } else {
- return 0;
- }
- if (_parse_additive_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, op);
- }
-}
-
-
-static int
-_parse_equality_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_relational_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- unsigned int op;
-
- *ps = p;
- if (_parse_token(ctx, SL_PP_EQUAL, &p) == 0) {
- op = OP_EQUAL;
- } else if (_parse_token(ctx, SL_PP_NOTEQUAL, &p) == 0) {
- op = OP_NOTEQUAL;
- } else {
- return 0;
- }
- if (_parse_relational_expression(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, op);
- }
-}
-
-
-static int
-_parse_logical_and_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_equality_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_AND, &p)) {
- return 0;
- }
- if (_parse_equality_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_LOGICALAND);
- }
-}
-
-
-static int
-_parse_logical_xor_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_logical_and_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_XOR, &p)) {
- return 0;
- }
- if (_parse_logical_and_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_LOGICALXOR);
- }
-}
-
-
-static int
-_parse_logical_or_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_logical_xor_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_OR, &p)) {
- return 0;
- }
- if (_parse_logical_xor_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_LOGICALOR);
- }
-}
-
-
-static int
-_parse_conditional_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_logical_or_expression(ctx, &p)) {
- return -1;
- }
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_QUESTION, &p)) {
- return 0;
- }
- if (_parse_expression(ctx, &p)) {
- return 0;
- }
- if (_parse_token(ctx, SL_PP_COLON, &p)) {
- return 0;
- }
- if (_parse_conditional_expression(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_SELECT);
- }
-}
-
-
-static int
-_parse_constant_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_conditional_expression(ctx, ps)) {
- return -1;
- }
- _emit(ctx, &ps->out, OP_END);
- return 0;
-}
-
-
-static int
-_parse_parameter_declarator_array(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACKET, &p)) {
- return -1;
- }
- if (_parse_constant_expression(ctx, &p)) {
- _error(ctx, "expected constant integral expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p)) {
- _error(ctx, "expected `]'");
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_parameter_declarator(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e;
-
- if (_parse_type_specifier(ctx, &p)) {
- return -1;
- }
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- e = _emit(ctx, &p.out, PARAMETER_ARRAY_PRESENT);
- if (_parse_parameter_declarator_array(ctx, &p)) {
- _update(ctx, e, PARAMETER_ARRAY_NOT_PRESENT);
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_parameter_type_specifier_array(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACKET, &p)) {
- return -1;
- }
- if (_parse_constant_expression(ctx, &p)) {
- _error(ctx, "expected constant integral expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p)) {
- _error(ctx, "expected `]'");
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_parameter_type_specifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e;
-
- if (_parse_type_specifier(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, '\0');
-
- e = _emit(ctx, &p.out, PARAMETER_ARRAY_PRESENT);
- if (_parse_parameter_type_specifier_array(ctx, &p)) {
- _update(ctx, e, PARAMETER_ARRAY_NOT_PRESENT);
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_parameter_declaration(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, PARAMETER_NEXT);
-
- (void) e;
-
- if (_parse_storage_qualifier(ctx, &p)) {
- _emit(ctx, &p.out, TYPE_QUALIFIER_NONE);
- }
- _parse_parameter_qualifier(ctx, &p);
- if (_parse_precision(ctx, &p)) {
- _emit(ctx, &p.out, PRECISION_DEFAULT);
- }
- if (_parse_parameter_declarator(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
- if (_parse_parameter_type_specifier(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_function_header_with_parameters(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_function_header(ctx, &p)) {
- return -1;
- }
- if (_parse_parameter_declaration(ctx, &p)) {
- return -1;
- }
-
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_COMMA, &p)) {
- return 0;
- }
- if (_parse_parameter_declaration(ctx, &p)) {
- return 0;
- }
- }
-}
-
-
-static int
-_parse_function_declarator(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_function_header_with_parameters(ctx, ps) == 0) {
- return 0;
- }
-
- if (_parse_function_header(ctx, ps) == 0) {
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_function_prototype(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_function_header(ctx, &p) == 0) {
- if (_parse_id(ctx, ctx->dict._void, &p) == 0) {
- if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) {
- _emit(ctx, &p.out, PARAMETER_NONE);
- *ps = p;
- return 0;
- }
- _error(ctx, "expected `)'");
- return -1;
- }
- }
-
- p = *ps;
- if (_parse_function_declarator(ctx, &p) == 0) {
- if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) {
- _emit(ctx, &p.out, PARAMETER_NONE);
- *ps = p;
- return 0;
- }
- _error(ctx, "expected `)'");
- return -1;
- }
-
- return -1;
-}
-
-
-static int
-_parse_precision(struct parse_context *ctx,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
- int id;
- unsigned int precision;
-
- if (!input || input->token != SL_PP_IDENTIFIER) {
- return -1;
- }
- id = input->data.identifier;
-
- if (id == ctx->dict.lowp) {
- precision = PRECISION_LOW;
- } else if (id == ctx->dict.mediump) {
- precision = PRECISION_MEDIUM;
- } else if (id == ctx->dict.highp) {
- precision = PRECISION_HIGH;
- } else {
- return -1;
- }
-
- _parse_token(ctx, SL_PP_IDENTIFIER, ps);
- _emit(ctx, &ps->out, precision);
- return 0;
-}
-
-
-static int
-_parse_prectype(struct parse_context *ctx,
- struct parse_state *ps)
-{
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
- int id;
- unsigned int type;
-
- if (!input || input->token != SL_PP_IDENTIFIER) {
- return -1;
- }
- id = input->data.identifier;
-
- if (id == ctx->dict._int) {
- type = TYPE_SPECIFIER_INT;
- } else if (id == ctx->dict._float) {
- type = TYPE_SPECIFIER_FLOAT;
- } else if (id == ctx->dict.sampler1D) {
- type = TYPE_SPECIFIER_SAMPLER1D;
- } else if (id == ctx->dict.sampler2D) {
- type = TYPE_SPECIFIER_SAMPLER2D;
- } else if (id == ctx->dict.sampler3D) {
- type = TYPE_SPECIFIER_SAMPLER3D;
- } else if (id == ctx->dict.samplerCube) {
- type = TYPE_SPECIFIER_SAMPLERCUBE;
- } else if (id == ctx->dict.sampler1DShadow) {
- type = TYPE_SPECIFIER_SAMPLER1DSHADOW;
- } else if (id == ctx->dict.sampler2DShadow) {
- type = TYPE_SPECIFIER_SAMPLER2DSHADOW;
- } else if (id == ctx->dict.sampler2DRect) {
- type = TYPE_SPECIFIER_SAMPLER2DRECT;
- } else if (id == ctx->dict.sampler2DRectShadow) {
- type = TYPE_SPECIFIER_SAMPLER2DRECTSHADOW;
- } else if (id == ctx->dict.sampler1DArray) {
- type = TYPE_SPECIFIER_SAMPLER_1D_ARRAY;
- } else if (id == ctx->dict.sampler2DArray) {
- type = TYPE_SPECIFIER_SAMPLER_2D_ARRAY;
- } else if (id == ctx->dict.sampler1DArrayShadow) {
- type = TYPE_SPECIFIER_SAMPLER_1D_ARRAY_SHADOW;
- } else if (id == ctx->dict.sampler2DArrayShadow) {
- type = TYPE_SPECIFIER_SAMPLER_2D_ARRAY_SHADOW;
- } else {
- return -1;
- }
-
- _parse_token(ctx, SL_PP_IDENTIFIER, ps);
- _emit(ctx, &ps->out, type);
- return 0;
-}
-
-
-static int
-_parse_precision_stmt(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_id(ctx, ctx->dict.precision, &p)) {
- return -1;
- }
- if (_parse_precision(ctx, &p)) {
- return -1;
- }
- if (_parse_prectype(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_floatconstant(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_PUSH_FLOAT);
- if (_parse_float(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_intconstant(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_PUSH_INT);
- if (_parse_uint(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_boolconstant(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_id(ctx, ctx->dict._false, ps) == 0) {
- _emit(ctx, &ps->out, OP_PUSH_BOOL);
- _emit(ctx, &ps->out, 2); /* radix */
- _emit(ctx, &ps->out, '0');
- _emit(ctx, &ps->out, '\0');
- return 0;
- }
-
- if (_parse_id(ctx, ctx->dict._true, ps) == 0) {
- _emit(ctx, &ps->out, OP_PUSH_BOOL);
- _emit(ctx, &ps->out, 2); /* radix */
- _emit(ctx, &ps->out, '1');
- _emit(ctx, &ps->out, '\0');
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_variable_identifier(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_PUSH_IDENTIFIER);
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_primary_expression(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p;
-
- if (_parse_floatconstant(ctx, ps) == 0) {
- return 0;
- }
- if (_parse_boolconstant(ctx, ps) == 0) {
- return 0;
- }
- if (_parse_intconstant(ctx, ps) == 0) {
- return 0;
- }
- if (_parse_variable_identifier(ctx, ps) == 0) {
- return 0;
- }
-
- p = *ps;
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- return -1;
- }
- if (_parse_expression(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RPAREN, &p)) {
- return -1;
- }
-
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_asm_argument(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_variable_identifier(ctx, ps) == 0) {
- struct parse_state p = *ps;
-
- if (_parse_token(ctx, SL_PP_DOT, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_FIELD);
- if (_parse_identifier(ctx, &p)) {
- return 0;
- }
- *ps = p;
- return 0;
- }
-
- if (_parse_floatconstant(ctx, ps) == 0) {
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_asm_arguments(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_asm_argument(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
-
- for (;;) {
- *ps = p;
- if (_parse_token(ctx, SL_PP_COMMA, &p)) {
- return 0;
- }
- if (_parse_asm_argument(ctx, &p)) {
- return 0;
- }
- _emit(ctx, &p.out, OP_END);
- }
-}
-
-
-static int
-_parse_asm_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_id(ctx, ctx->dict.___asm, &p)) {
- return -1;
- }
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- if (_parse_asm_arguments(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_selection_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_IF);
- if (_parse_id(ctx, ctx->dict._if, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- _error(ctx, "expected `('");
- return -1;
- }
- if (_parse_expression(ctx, &p)) {
- _error(ctx, "expected an expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RPAREN, &p)) {
- _error(ctx, "expected `)'");
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- if (_parse_statement(ctx, &p)) {
- return -1;
- }
-
- *ps = p;
- if (_parse_id(ctx, ctx->dict._else, &p) == 0) {
- if (_parse_statement(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
- }
-
- _emit(ctx, &ps->out, OP_EXPRESSION);
- _emit(ctx, &ps->out, OP_PUSH_VOID);
- _emit(ctx, &ps->out, OP_END);
- return 0;
-}
-
-
-static int
-_parse_expression_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_expression(ctx, &p)) {
- _emit(ctx, &p.out, OP_PUSH_VOID);
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_for_init_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, OP_EXPRESSION);
-
- if (_parse_expression_statement(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
-
- if (_parse_declaration(ctx, &p) == 0) {
- _update(ctx, e, OP_DECLARE);
- *ps = p;
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_initializer(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_assignment_expression(ctx, ps) == 0) {
- _emit(ctx, &ps->out, OP_END);
- return 0;
- }
- return -1;
-}
-
-
-static int
-_parse_condition_initializer(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- _emit(ctx, &p.out, OP_DECLARE);
- _emit(ctx, &p.out, DECLARATION_INIT_DECLARATOR_LIST);
- if (_parse_fully_specified_type(ctx, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, VARIABLE_IDENTIFIER);
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_ASSIGN, &p)) {
- _error(ctx, "expected `='");
- return -1;
- }
- _emit(ctx, &p.out, VARIABLE_INITIALIZER);
- if (_parse_initializer(ctx, &p)) {
- _error(ctx, "expected an initialiser");
- return -1;
- }
- _emit(ctx, &p.out, DECLARATOR_NONE);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_condition(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p;
-
- if (_parse_condition_initializer(ctx, ps) == 0) {
- return 0;
- }
-
- p = *ps;
- _emit(ctx, &p.out, OP_EXPRESSION);
- if (_parse_expression(ctx, &p) == 0) {
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_for_rest_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_condition(ctx, &p)) {
- _emit(ctx, &p.out, OP_EXPRESSION);
- _emit(ctx, &p.out, OP_PUSH_BOOL);
- _emit(ctx, &p.out, 2);
- _emit(ctx, &p.out, '1');
- _emit(ctx, &p.out, '\0');
- _emit(ctx, &p.out, OP_END);
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- if (_parse_expression(ctx, &p)) {
- _emit(ctx, &p.out, OP_PUSH_VOID);
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_iteration_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_id(ctx, ctx->dict._while, &p) == 0) {
- _emit(ctx, &p.out, OP_WHILE);
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- _error(ctx, "expected `('");
- return -1;
- }
- if (_parse_condition(ctx, &p)) {
- _error(ctx, "expected an expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RPAREN, &p)) {
- _error(ctx, "expected `)'");
- return -1;
- }
- if (_parse_statement(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
- }
-
- if (_parse_id(ctx, ctx->dict._do, &p) == 0) {
- _emit(ctx, &p.out, OP_DO);
- if (_parse_statement(ctx, &p)) {
- return -1;
- }
- if (_parse_id(ctx, ctx->dict._while, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- _error(ctx, "expected `('");
- return -1;
- }
- if (_parse_expression(ctx, &p)) {
- _error(ctx, "expected an expression");
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RPAREN, &p)) {
- _error(ctx, "expected `)'");
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- _error(ctx, "expected `;'");
- return -1;
- }
- *ps = p;
- return 0;
- }
-
- if (_parse_id(ctx, ctx->dict._for, &p) == 0) {
- _emit(ctx, &p.out, OP_FOR);
- if (_parse_token(ctx, SL_PP_LPAREN, &p)) {
- _error(ctx, "expected `('");
- return -1;
- }
- if (_parse_for_init_statement(ctx, &p)) {
- return -1;
- }
- if (_parse_for_rest_statement(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_RPAREN, &p)) {
- _error(ctx, "expected `)'");
- return -1;
- }
- if (_parse_statement(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_jump_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, 0);
-
- if (_parse_id(ctx, ctx->dict._continue, &p) == 0) {
- _update(ctx, e, OP_CONTINUE);
- } else if (_parse_id(ctx, ctx->dict._break, &p) == 0) {
- _update(ctx, e, OP_BREAK);
- } else if (_parse_id(ctx, ctx->dict._return, &p) == 0) {
- _update(ctx, e, OP_RETURN);
- if (_parse_expression(ctx, &p)) {
- _emit(ctx, &p.out, OP_PUSH_VOID);
- }
- _emit(ctx, &p.out, OP_END);
- } else if (ctx->shader_type == 1 && _parse_id(ctx, ctx->dict.discard, &p) == 0) {
- _update(ctx, e, OP_DISCARD);
- } else {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_simple_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p;
- unsigned int e;
-
- if (_parse_selection_statement(ctx, ps) == 0) {
- return 0;
- }
-
- if (_parse_iteration_statement(ctx, ps) == 0) {
- return 0;
- }
-
- if (_parse_jump_statement(ctx, ps) == 0) {
- return 0;
- }
-
- p = *ps;
- e = _emit(ctx, &p.out, OP_EXPRESSION);
- if (_parse_expression_statement(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
-
- if (_parse_precision_stmt(ctx, &p) == 0) {
- _update(ctx, e, OP_PRECISION);
- *ps = p;
- return 0;
- }
-
- if (ctx->parsing_builtin && _parse_asm_statement(ctx, &p) == 0) {
- _update(ctx, e, OP_ASM);
- *ps = p;
- return 0;
- }
-
- if (_parse_declaration(ctx, &p) == 0) {
- _update(ctx, e, OP_DECLARE);
- *ps = p;
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_compound_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACE, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_BLOCK_BEGIN_NEW_SCOPE);
- _parse_statement_list(ctx, &p);
- if (_parse_token(ctx, SL_PP_RBRACE, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_statement(struct parse_context *ctx,
- struct parse_state *ps)
-{
- if (_parse_compound_statement(ctx, ps) == 0) {
- return 0;
- }
-
- if (_parse_simple_statement(ctx, ps) == 0) {
- return 0;
- }
-
- return -1;
-}
-
-
-static int
-_parse_statement_list(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_statement(ctx, &p)) {
- return -1;
- }
-
- for (;;) {
- *ps = p;
- if (_parse_statement(ctx, &p)) {
- return 0;
- }
- }
-}
-
-
-static int
-_parse_compound_statement_no_new_scope(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACE, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_BLOCK_BEGIN_NO_NEW_SCOPE);
- _parse_statement_list(ctx, &p);
- if (_parse_token(ctx, SL_PP_RBRACE, &p)) {
- return -1;
- }
- _emit(ctx, &p.out, OP_END);
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_function_definition(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_function_prototype(ctx, &p)) {
- return -1;
- }
- if (_parse_compound_statement_no_new_scope(ctx, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_invariant_stmt(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_id(ctx, ctx->dict.invariant, &p)) {
- return -1;
- }
- if (_parse_identifier(ctx, &p)) {
- return -1;
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_single_declaration(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e;
-
- if (_parse_fully_specified_type(ctx, &p)) {
- return -1;
- }
-
- e = _emit(ctx, &p.out, VARIABLE_IDENTIFIER);
- if (_parse_identifier(ctx, &p)) {
- _update(ctx, e, VARIABLE_NONE);
- *ps = p;
- return 0;
- }
-
- e = _emit(ctx, &p.out, VARIABLE_NONE);
- *ps = p;
-
- if (_parse_token(ctx, SL_PP_ASSIGN, &p) == 0) {
- _update(ctx, e, VARIABLE_INITIALIZER);
- if (_parse_initializer(ctx, &p) == 0) {
- *ps = p;
- return 0;
- }
- _error(ctx, "expected an initialiser");
- return -1;
- }
- p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACKET, &p) == 0) {
- if (_parse_constant_expression(ctx, &p)) {
- _update(ctx, e, VARIABLE_ARRAY_UNKNOWN);
- } else {
- _update(ctx, e, VARIABLE_ARRAY_EXPLICIT);
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p) == 0) {
- *ps = p;
- return 0;
- }
- _error(ctx, "expected `]'");
- return -1;
- }
- return 0;
-}
-
-
-static int
-_parse_init_declarator_list(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
-
- if (_parse_single_declaration(ctx, &p)) {
- return -1;
- }
-
- for (;;) {
- unsigned int e;
-
- *ps = p;
- if (_parse_token(ctx, SL_PP_COMMA, &p)) {
- break;
- }
- _emit(ctx, &p.out, DECLARATOR_NEXT);
- _emit(ctx, &p.out, VARIABLE_IDENTIFIER);
- if (_parse_identifier(ctx, &p)) {
- break;
- }
-
- e = _emit(ctx, &p.out, VARIABLE_NONE);
- *ps = p;
-
- if (_parse_token(ctx, SL_PP_ASSIGN, &p) == 0) {
- if (_parse_initializer(ctx, &p) == 0) {
- _update(ctx, e, VARIABLE_INITIALIZER);
- *ps = p;
- continue;
- }
- _error(ctx, "expected an initialiser");
- break;
- }
- p = *ps;
-
- if (_parse_token(ctx, SL_PP_LBRACKET, &p) == 0) {
- unsigned int arr;
-
- if (_parse_constant_expression(ctx, &p)) {
- arr = VARIABLE_ARRAY_UNKNOWN;
- } else {
- arr = VARIABLE_ARRAY_EXPLICIT;
- }
- if (_parse_token(ctx, SL_PP_RBRACKET, &p) == 0) {
- _update(ctx, e, arr);
- *ps = p;
- continue;
- }
- _error(ctx, "expected `]'");
- break;
- }
- p = *ps;
- }
-
- _emit(ctx, &ps->out, DECLARATOR_NONE);
- return 0;
-}
-
-
-static int
-_parse_declaration(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, DECLARATION_FUNCTION_PROTOTYPE);
-
- if (_parse_function_prototype(ctx, &p)) {
- if (_parse_init_declarator_list(ctx, &p)) {
- return -1;
- }
- _update(ctx, e, DECLARATION_INIT_DECLARATOR_LIST);
- }
- if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) {
- _error(ctx, "expected `;'");
- return -1;
- }
- *ps = p;
- return 0;
-}
-
-
-static int
-_parse_external_declaration(struct parse_context *ctx,
- struct parse_state *ps)
-{
- struct parse_state p = *ps;
- unsigned int e = _emit(ctx, &p.out, 0);
-
- if (_parse_precision_stmt(ctx, &p) == 0) {
- _update(ctx, e, DEFAULT_PRECISION);
- *ps = p;
- return 0;
- }
-
- if (_parse_function_definition(ctx, &p) == 0) {
- _update(ctx, e, EXTERNAL_FUNCTION_DEFINITION);
- *ps = p;
- return 0;
- }
-
- if (_parse_invariant_stmt(ctx, &p) == 0) {
- _update(ctx, e, INVARIANT_STMT);
- *ps = p;
- return 0;
- }
-
- if (_parse_declaration(ctx, &p) == 0) {
- _update(ctx, e, EXTERNAL_DECLARATION);
- *ps = p;
- return 0;
- }
-
- _error(ctx, "expected an identifier");
- return -1;
-}
-
-
-static int
-_parse_extensions(struct parse_context *ctx,
- struct parse_state *ps)
-{
- for (;;) {
- const struct sl_pp_token_info *input = _fetch_token(ctx, ps->in);
- unsigned int enable;
-
- if (!input) {
- return -1;
- }
-
- switch (input->token) {
- case SL_PP_EXTENSION_REQUIRE:
- case SL_PP_EXTENSION_ENABLE:
- case SL_PP_EXTENSION_WARN:
- enable = 1;
- break;
- case SL_PP_EXTENSION_DISABLE:
- enable = 0;
- break;
- default:
- return 0;
- }
-
- ps->in++;
- if (input->data.extension == ctx->dict.all) {
- ctx->fragment_coord_conventions = enable;
- }
- else if (input->data.extension == ctx->dict._GL_ARB_fragment_coord_conventions) {
- ctx->fragment_coord_conventions = enable;
- }
- }
-}
-
-
-static int
-_parse_translation_unit(struct parse_context *ctx,
- struct parse_state *ps)
-{
- _emit(ctx, &ps->out, REVISION);
- if (_parse_extensions(ctx, ps)) {
- return -1;
- }
- if (_parse_external_declaration(ctx, ps)) {
- return -1;
- }
- for (;;) {
- if (_parse_extensions(ctx, ps)) {
- return -1;
- }
- if (_parse_external_declaration(ctx, ps)) {
- break;
- }
- }
- _emit(ctx, &ps->out, EXTERNAL_NULL);
- if (_parse_token(ctx, SL_PP_EOF, ps)) {
- return -1;
- }
- return 0;
-}
-
-
-#define ADD_NAME_STR(CTX, NAME, STR)\
- do {\
- (CTX).dict.NAME = sl_pp_context_add_unique_str((CTX).context, (STR));\
- if ((CTX).dict.NAME == -1) {\
- return -1;\
- }\
- } while (0)
-
-#define ADD_NAME(CTX, NAME) ADD_NAME_STR(CTX, NAME, #NAME)
-
-
-int
-sl_cl_compile(struct sl_pp_context *context,
- unsigned int shader_type,
- unsigned int parsing_builtin,
- unsigned char **output,
- unsigned int *cboutput,
- char *error,
- unsigned int cberror)
-{
- struct parse_context ctx;
- struct parse_state ps;
-
- ctx.context = context;
-
- ADD_NAME_STR(ctx, _void, "void");
- ADD_NAME_STR(ctx, _float, "float");
- ADD_NAME_STR(ctx, _int, "int");
- ADD_NAME_STR(ctx, _bool, "bool");
- ADD_NAME(ctx, vec2);
- ADD_NAME(ctx, vec3);
- ADD_NAME(ctx, vec4);
- ADD_NAME(ctx, bvec2);
- ADD_NAME(ctx, bvec3);
- ADD_NAME(ctx, bvec4);
- ADD_NAME(ctx, ivec2);
- ADD_NAME(ctx, ivec3);
- ADD_NAME(ctx, ivec4);
- ADD_NAME(ctx, mat2);
- ADD_NAME(ctx, mat3);
- ADD_NAME(ctx, mat4);
- ADD_NAME(ctx, mat2x3);
- ADD_NAME(ctx, mat3x2);
- ADD_NAME(ctx, mat2x4);
- ADD_NAME(ctx, mat4x2);
- ADD_NAME(ctx, mat3x4);
- ADD_NAME(ctx, mat4x3);
- ADD_NAME(ctx, sampler1D);
- ADD_NAME(ctx, sampler2D);
- ADD_NAME(ctx, sampler3D);
- ADD_NAME(ctx, samplerCube);
- ADD_NAME(ctx, sampler1DShadow);
- ADD_NAME(ctx, sampler2DShadow);
- ADD_NAME(ctx, sampler2DRect);
- ADD_NAME(ctx, sampler2DRectShadow);
- ADD_NAME(ctx, sampler1DArray);
- ADD_NAME(ctx, sampler2DArray);
- ADD_NAME(ctx, sampler1DArrayShadow);
- ADD_NAME(ctx, sampler2DArrayShadow);
-
- ADD_NAME(ctx, invariant);
-
- ADD_NAME(ctx, centroid);
-
- ADD_NAME(ctx, precision);
- ADD_NAME(ctx, lowp);
- ADD_NAME(ctx, mediump);
- ADD_NAME(ctx, highp);
-
- ADD_NAME_STR(ctx, _const, "const");
- ADD_NAME(ctx, attribute);
- ADD_NAME(ctx, varying);
- ADD_NAME(ctx, uniform);
- ADD_NAME(ctx, __fixed_output);
- ADD_NAME(ctx, __fixed_input);
-
- ADD_NAME(ctx, in);
- ADD_NAME(ctx, out);
- ADD_NAME(ctx, inout);
-
- ADD_NAME(ctx, layout);
- ADD_NAME(ctx, origin_upper_left);
- ADD_NAME(ctx, pixel_center_integer);
-
- ADD_NAME_STR(ctx, _struct, "struct");
-
- ADD_NAME(ctx, __constructor);
- ADD_NAME(ctx, __operator);
- ADD_NAME_STR(ctx, ___asm, "__asm");
-
- ADD_NAME_STR(ctx, _if, "if");
- ADD_NAME_STR(ctx, _else, "else");
- ADD_NAME_STR(ctx, _for, "for");
- ADD_NAME_STR(ctx, _while, "while");
- ADD_NAME_STR(ctx, _do, "do");
-
- ADD_NAME_STR(ctx, _continue, "continue");
- ADD_NAME_STR(ctx, _break, "break");
- ADD_NAME_STR(ctx, _return, "return");
- ADD_NAME(ctx, discard);
-
- ADD_NAME_STR(ctx, _false, "false");
- ADD_NAME_STR(ctx, _true, "true");
-
- ADD_NAME(ctx, all);
- ADD_NAME_STR(ctx, _GL_ARB_fragment_coord_conventions, "GL_ARB_fragment_coord_conventions");
-
- ctx.out_buf = NULL;
- ctx.out_cap = 0;
-
- ctx.shader_type = shader_type;
- ctx.parsing_builtin = 1;
-
- ctx.fragment_coord_conventions = 0;
-
- ctx.error[0] = '\0';
- ctx.process_error = 0;
-
- ctx.tokens_cap = 1024;
- ctx.tokens_read = 0;
- ctx.tokens = malloc(ctx.tokens_cap * sizeof(struct sl_pp_token_info));
- if (!ctx.tokens) {
- strncpy(error, "out of memory", cberror - 1);
- error[cberror - 1] = '\0';
- return -1;
- }
-
- ps.in = 0;
- ps.out = 0;
-
- if (_parse_translation_unit(&ctx, &ps)) {
- strncpy(error, ctx.error, cberror);
- free(ctx.tokens);
- return -1;
- }
-
- *output = ctx.out_buf;
- *cboutput = ps.out;
- free(ctx.tokens);
- return 0;
-}
diff --git a/mesalib/src/glsl/cl/sl_cl_parse.h b/mesalib/src/glsl/cl/sl_cl_parse.h
deleted file mode 100644
index dd5791d59..000000000
--- a/mesalib/src/glsl/cl/sl_cl_parse.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_CL_PARSE_H
-#define SL_CL_PARSE_H
-
-int
-sl_cl_compile(struct sl_pp_context *context,
- unsigned int shader_type,
- unsigned int parsing_builtin,
- unsigned char **output,
- unsigned int *cboutput,
- char *error,
- unsigned int cberror);
-
-#endif /* SL_CL_PARSE_H */
diff --git a/mesalib/src/glsl/getopt.cpp b/mesalib/src/glsl/getopt.cpp
new file mode 100644
index 000000000..ea5dd3927
--- /dev/null
+++ b/mesalib/src/glsl/getopt.cpp
@@ -0,0 +1,552 @@
+/* $OpenBSD: getopt_long.c,v 1.20 2005/10/25 15:49:37 jmc Exp $ */
+/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */
+// Adapted for Box Backup by Chris Wilson <chris+boxbackup@qwirx.com>
+
+/*
+ * Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dieter Baron and Thomas Klausner.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// #include "Box.h"
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define __STDC__ 1
+
+#include "getopt.h"
+
+#if defined _MSC_VER || defined __MINGW32__
+#define REPLACE_GETOPT /* use this getopt as the system getopt(3) */
+
+#ifdef REPLACE_GETOPT
+int opterr = 1; /* if error message should be printed */
+int optind = 1; /* index into parent argv vector */
+int optopt = '?'; /* character checked for validity */
+int optreset; /* reset getopt */
+char *optarg; /* argument associated with option */
+#endif
+
+#define PRINT_ERROR ((opterr) && (*options != ':'))
+
+#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */
+#define FLAG_ALLARGS 0x02 /* treat non-options as args to option "-1" */
+#define FLAG_LONGONLY 0x04 /* operate as getopt_long_only */
+
+/* return values */
+#define BADCH (int)'?'
+#define BADARG ((*options == ':') ? (int)':' : (int)'?')
+#define INORDER (int)1
+
+#define EMSG ""
+
+static void warnx(const char* fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, "\n");
+ }
+
+ static int getopt_internal(int, char * const *, const char *,
+ const struct option *, int *, int);
+ static int parse_long_options(char * const *, const char *,
+ const struct option *, int *, int);
+ static int gcd(int, int);
+ static void permute_args(int, int, int, char * const *);
+
+ static char *place = EMSG; /* option letter processing */
+
+ /* XXX: set optreset to 1 rather than these two */
+ static int nonopt_start = -1; /* first non option argument (for permute) */
+ static int nonopt_end = -1; /* first option after non options (for permute) */
+
+ /* Error messages */
+ static const char recargchar[] = "option requires an argument -- %c";
+ static const char recargstring[] = "option requires an argument -- %s";
+ static const char ambig[] = "ambiguous option -- %.*s";
+ static const char noarg[] = "option doesn't take an argument -- %.*s";
+ static const char illoptchar[] = "unknown option -- %c";
+ static const char illoptstring[] = "unknown option -- %s";
+
+ /*
+ * Compute the greatest common divisor of a and b.
+ */
+ static int
+ gcd(int a, int b)
+ {
+ int c;
+
+ c = a % b;
+ while (c != 0) {
+ a = b;
+ b = c;
+ c = a % b;
+ }
+
+ return (b);
+ }
+
+ /*
+ * Exchange the block from nonopt_start to nonopt_end with the block
+ * from nonopt_end to opt_end (keeping the same order of arguments
+ * in each block).
+ */
+ static void
+ permute_args(int panonopt_start, int panonopt_end, int opt_end,
+ char * const *nargv)
+ {
+ int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
+ char *swap;
+
+ /*
+ * compute lengths of blocks and number and size of cycles
+ */
+ nnonopts = panonopt_end - panonopt_start;
+ nopts = opt_end - panonopt_end;
+ ncycle = gcd(nnonopts, nopts);
+ cyclelen = (opt_end - panonopt_start) / ncycle;
+
+ for (i = 0; i < ncycle; i++) {
+ cstart = panonopt_end+i;
+ pos = cstart;
+ for (j = 0; j < cyclelen; j++) {
+ if (pos >= panonopt_end)
+ pos -= nnonopts;
+ else
+ pos += nopts;
+ swap = nargv[pos];
+ /* LINTED const cast */
+ ((char **) nargv)[pos] = nargv[cstart];
+ /* LINTED const cast */
+ ((char **)nargv)[cstart] = swap;
+ }
+ }
+ }
+
+ /*
+ * parse_long_options --
+ * Parse long options in argc/argv argument vector.
+ * Returns -1 if short_too is set and the option does not match long_options.
+ */
+ static int
+ parse_long_options(char * const *nargv, const char *options,
+ const struct option *long_options, int *idx, int short_too)
+ {
+ char *current_argv, *has_equal;
+ size_t current_argv_len;
+ int i, match;
+
+ current_argv = place;
+ match = -1;
+
+ optind++;
+
+ if ((has_equal = strchr(current_argv, '=')) != NULL) {
+ /* argument found (--option=arg) */
+ current_argv_len = has_equal - current_argv;
+ has_equal++;
+ } else
+ current_argv_len = strlen(current_argv);
+
+ for (i = 0; long_options[i].name; i++) {
+ /* find matching long option */
+ if (strncmp(current_argv, long_options[i].name,
+ current_argv_len))
+ continue;
+
+ if (strlen(long_options[i].name) == current_argv_len) {
+ /* exact match */
+ match = i;
+ break;
+ }
+ /*
+ * If this is a known short option, don't allow
+ * a partial match of a single character.
+ */
+ if (short_too && current_argv_len == 1)
+ continue;
+
+ if (match == -1) /* partial match */
+ match = i;
+ else {
+ /* ambiguous abbreviation */
+ if (PRINT_ERROR)
+ warnx(ambig, (int)current_argv_len,
+ current_argv);
+ optopt = 0;
+ return (BADCH);
+ }
+ }
+ if (match != -1) { /* option found */
+ if (long_options[match].has_arg == no_argument
+ && has_equal) {
+ if (PRINT_ERROR)
+ warnx(noarg, (int)current_argv_len,
+ current_argv);
+ /*
+ * XXX: GNU sets optopt to val regardless of flag
+ */
+ if (long_options[match].flag == NULL)
+ optopt = long_options[match].val;
+ else
+ optopt = 0;
+ return (BADARG);
+ }
+ if (long_options[match].has_arg == required_argument ||
+ long_options[match].has_arg == optional_argument) {
+ if (has_equal)
+ optarg = has_equal;
+ else if (long_options[match].has_arg ==
+ required_argument) {
+ /*
+ * optional argument doesn't use next nargv
+ */
+ optarg = nargv[optind++];
+ }
+ }
+ if ((long_options[match].has_arg == required_argument)
+ && (optarg == NULL)) {
+ /*
+ * Missing argument; leading ':' indicates no error
+ * should be generated.
+ */
+ if (PRINT_ERROR)
+ warnx(recargstring,
+ current_argv);
+ /*
+ * XXX: GNU sets optopt to val regardless of flag
+ */
+ if (long_options[match].flag == NULL)
+ optopt = long_options[match].val;
+ else
+ optopt = 0;
+ --optind;
+ return (BADARG);
+ }
+ } else { /* unknown option */
+ if (short_too) {
+ --optind;
+ return (-1);
+ }
+ if (PRINT_ERROR)
+ warnx(illoptstring, current_argv);
+ optopt = 0;
+ return (BADCH);
+ }
+ if (idx)
+ *idx = match;
+ if (long_options[match].flag) {
+ *long_options[match].flag = long_options[match].val;
+ return (0);
+ } else
+ return (long_options[match].val);
+ }
+
+ /*
+ * getopt_internal --
+ * Parse argc/argv argument vector. Called by user level routines.
+ */
+ static int
+ getopt_internal(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx, int flags)
+ {
+ const char * oli; /* option letter list index */
+ int optchar, short_too;
+ static int posixly_correct = -1;
+
+ if (options == NULL)
+ return (-1);
+
+ /*
+ * Disable GNU extensions if POSIXLY_CORRECT is set or options
+ * string begins with a '+'.
+ */
+ if (posixly_correct == -1)
+ posixly_correct = (getenv("POSIXLY_CORRECT") != NULL);
+ if (posixly_correct || *options == '+')
+ flags &= ~FLAG_PERMUTE;
+ else if (*options == '-')
+ flags |= FLAG_ALLARGS;
+ if (*options == '+' || *options == '-')
+ options++;
+
+ /*
+ * XXX Some GNU programs (like cvs) set optind to 0 instead of
+ * XXX using optreset. Work around this braindamage.
+ */
+ if (optind == 0)
+ optind = optreset = 1;
+
+ optarg = NULL;
+ if (optreset)
+ nonopt_start = nonopt_end = -1;
+ start:
+ if (optreset || !*place) { /* update scanning pointer */
+ optreset = 0;
+ if (optind >= nargc) { /* end of argument vector */
+ place = EMSG;
+ if (nonopt_end != -1) {
+ /* do permutation, if we have to */
+ permute_args(nonopt_start, nonopt_end,
+ optind, nargv);
+ optind -= nonopt_end - nonopt_start;
+ }
+ else if (nonopt_start != -1) {
+ /*
+ * If we skipped non-options, set optind
+ * to the first of them.
+ */
+ optind = nonopt_start;
+ }
+ nonopt_start = nonopt_end = -1;
+ return (-1);
+ }
+ if (*(place = nargv[optind]) != '-' ||
+ (place[1] == '\0' && strchr(options, '-') == NULL)) {
+ place = EMSG; /* found non-option */
+ if (flags & FLAG_ALLARGS) {
+ /*
+ * GNU extension:
+ * return non-option as argument to option 1
+ */
+ optarg = nargv[optind++];
+ return (INORDER);
+ }
+ if (!(flags & FLAG_PERMUTE)) {
+ /*
+ * If no permutation wanted, stop parsing
+ * at first non-option.
+ */
+ return (-1);
+ }
+ /* do permutation */
+ if (nonopt_start == -1)
+ nonopt_start = optind;
+ else if (nonopt_end != -1) {
+ permute_args(nonopt_start, nonopt_end,
+ optind, nargv);
+ nonopt_start = optind -
+ (nonopt_end - nonopt_start);
+ nonopt_end = -1;
+ }
+ optind++;
+ /* process next argument */
+ goto start;
+ }
+ if (nonopt_start != -1 && nonopt_end == -1)
+ nonopt_end = optind;
+
+ /*
+ * If we have "-" do nothing, if "--" we are done.
+ */
+ if (place[1] != '\0' && *++place == '-' && place[1] == '\0') {
+ optind++;
+ place = EMSG;
+ /*
+ * We found an option (--), so if we skipped
+ * non-options, we have to permute.
+ */
+ if (nonopt_end != -1) {
+ permute_args(nonopt_start, nonopt_end,
+ optind, nargv);
+ optind -= nonopt_end - nonopt_start;
+ }
+ nonopt_start = nonopt_end = -1;
+ return (-1);
+ }
+ }
+
+ /*
+ * Check long options if:
+ * 1) we were passed some
+ * 2) the arg is not just "-"
+ * 3) either the arg starts with -- we are getopt_long_only()
+ */
+ if (long_options != NULL && place != nargv[optind] &&
+ (*place == '-' || (flags & FLAG_LONGONLY))) {
+ short_too = 0;
+ if (*place == '-')
+ place++; /* --foo long option */
+ else if (*place != ':' && strchr(options, *place) != NULL)
+ short_too = 1; /* could be short option too */
+
+ optchar = parse_long_options(nargv, options, long_options,
+ idx, short_too);
+ if (optchar != -1) {
+ place = EMSG;
+ return (optchar);
+ }
+ }
+
+ if ((optchar = (int)*place++) == (int)':' ||
+ optchar == (int)'-' && *place != '\0' ||
+ (oli = strchr(options, optchar)) == NULL) {
+ /*
+ * If the user specified "-" and '-' isn't listed in
+ * options, return -1 (non-option) as per POSIX.
+ * Otherwise, it is an unknown option character (or ':').
+ */
+ if (optchar == (int)'-' && *place == '\0')
+ return (-1);
+ if (!*place)
+ ++optind;
+ if (PRINT_ERROR)
+ warnx(illoptchar, optchar);
+ optopt = optchar;
+ return (BADCH);
+ }
+ if (long_options != NULL && optchar == 'W' && oli[1] == ';') {
+ /* -W long-option */
+ if (*place) /* no space */
+ /* NOTHING */;
+ else if (++optind >= nargc) { /* no arg */
+ place = EMSG;
+ if (PRINT_ERROR)
+ warnx(recargchar, optchar);
+ optopt = optchar;
+ return (BADARG);
+ } else /* white space */
+ place = nargv[optind];
+ optchar = parse_long_options(nargv, options, long_options,
+ idx, 0);
+ place = EMSG;
+ return (optchar);
+ }
+ if (*++oli != ':') { /* doesn't take argument */
+ if (!*place)
+ ++optind;
+ } else { /* takes (optional) argument */
+ optarg = NULL;
+ if (*place) /* no white space */
+ optarg = place;
+ /* XXX: disable test for :: if PC? (GNU doesn't) */
+ else if (oli[1] != ':') { /* arg not optional */
+ if (++optind >= nargc) { /* no arg */
+ place = EMSG;
+ if (PRINT_ERROR)
+ warnx(recargchar, optchar);
+ optopt = optchar;
+ return (BADARG);
+ } else
+ optarg = nargv[optind];
+ } else if (!(flags & FLAG_PERMUTE)) {
+ /*
+ * If permutation is disabled, we can accept an
+ * optional arg separated by whitespace so long
+ * as it does not start with a dash (-).
+ */
+ if (optind + 1 < nargc && *nargv[optind + 1] != '-')
+ optarg = nargv[++optind];
+ }
+ place = EMSG;
+ ++optind;
+ }
+ /* dump back option letter */
+ return (optchar);
+ }
+
+ #ifdef REPLACE_GETOPT
+ /*
+ * getopt --
+ * Parse argc/argv argument vector.
+ *
+ * [eventually this will replace the BSD getopt]
+ */
+ int
+ getopt(int nargc, char * const *nargv, const char *options)
+ {
+
+ /*
+ * We don't pass FLAG_PERMUTE to getopt_internal() since
+ * the BSD getopt(3) (unlike GNU) has never done this.
+ *
+ * Furthermore, since many privileged programs call getopt()
+ * before dropping privileges it makes sense to keep things
+ * as simple (and bug-free) as possible.
+ */
+ return (getopt_internal(nargc, nargv, options, NULL, NULL, 0));
+ }
+ #endif /* REPLACE_GETOPT */
+
+ /*
+ * getopt_long --
+ * Parse argc/argv argument vector.
+ */
+ int
+ getopt_long(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx)
+ {
+
+ return (getopt_internal(nargc, nargv, options, long_options, idx,
+ FLAG_PERMUTE));
+ }
+
+ /*
+ * getopt_long_only --
+ * Parse argc/argv argument vector.
+ */
+ int
+ getopt_long_only(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx)
+ {
+
+ return (getopt_internal(nargc, nargv, options, long_options, idx,
+ FLAG_PERMUTE|FLAG_LONGONLY));
+ }
+
+#endif // defined _MSC_VER || defined __MINGW32__ \ No newline at end of file
diff --git a/mesalib/src/glsl/glcpp/README b/mesalib/src/glsl/glcpp/README
new file mode 100644
index 000000000..0b5ef508c
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/README
@@ -0,0 +1,32 @@
+glcpp -- GLSL "C" preprocessor
+
+This is a simple preprocessor designed to provide the preprocessing
+needs of the GLSL language. The requirements for this preprocessor are
+specified in the GLSL 1.30 specification availble from:
+
+http://www.opengl.org/registry/doc/GLSLangSpec.Full.1.30.10.pdf
+
+This specification is not precise on some semantics, (for example,
+#define and #if), defining these merely "as is standard for C++
+preprocessors". To fill in these details, I've been using a draft of
+the C99 standard as available from:
+
+http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf
+
+Any downstream compiler accepting output from glcpp should be prepared
+to encounter and deal with the following preprocessor macros:
+
+ #line
+ #pragma
+ #extension
+
+All other macros will be handles according to the GLSL specification
+and will not appear in the output.
+
+Known limitations
+-----------------
+The __LINE__ and __FILE__ macros are not yet supported.
+
+A file that ends with a function-like macro name as the last
+non-whitespace token will result in a parse error, (where it should be
+passed through as is). \ No newline at end of file
diff --git a/mesalib/src/glsl/glcpp/glcpp-lex.c b/mesalib/src/glsl/glcpp/glcpp-lex.c
new file mode 100644
index 000000000..0f99ea1bb
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp-lex.c
@@ -0,0 +1,2691 @@
+#line 2 "glcpp/glcpp-lex.c"
+
+#line 4 "glcpp/glcpp-lex.c"
+
+#define YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 35
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t;
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX (4294967295U)
+#endif
+
+#endif /* ! C99 */
+
+#endif /* ! FLEXINT_H */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else /* ! __cplusplus */
+
+/* C99 requires __STDC__ to be defined as 1. */
+#if defined (__STDC__)
+
+#define YY_USE_CONST
+
+#endif /* defined (__STDC__) */
+#endif /* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index. If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* An opaque pointer. */
+#ifndef YY_TYPEDEF_YY_SCANNER_T
+#define YY_TYPEDEF_YY_SCANNER_T
+typedef void* yyscan_t;
+#endif
+
+/* For convenience, these vars (plus the bison vars far below)
+ are macros in the reentrant scanner. */
+#define yyin yyg->yyin_r
+#define yyout yyg->yyout_r
+#define yyextra yyg->yyextra_r
+#define yyleng yyg->yyleng_r
+#define yytext yyg->yytext_r
+#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
+#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
+#define yy_flex_debug yyg->yy_flex_debug_r
+
+/* Enter a start condition. This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN yyg->yy_start = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state. The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START ((yyg->yy_start - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE glcpp_restart(yyin ,yyscanner )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k.
+ * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+ * Ditto for the __ia64__ case accordingly.
+ */
+#define YY_BUF_SIZE 32768
+#else
+#define YY_BUF_SIZE 16384
+#endif /* __ia64__ */
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+ #define YY_LESS_LINENO(n)
+
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up yytext. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ *yy_cp = yyg->yy_hold_char; \
+ YY_RESTORE_YY_MORE_OFFSET \
+ yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+ YY_DO_BEFORE_ACTION; /* set up yytext again */ \
+ } \
+ while ( 0 )
+
+#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner )
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+ {
+ FILE *yy_input_file;
+
+ char *yy_ch_buf; /* input buffer */
+ char *yy_buf_pos; /* current position in input buffer */
+
+ /* Size of input buffer in bytes, not including room for EOB
+ * characters.
+ */
+ yy_size_t yy_buf_size;
+
+ /* Number of characters read into yy_ch_buf, not including EOB
+ * characters.
+ */
+ int yy_n_chars;
+
+ /* Whether we "own" the buffer - i.e., we know we created it,
+ * and can realloc() it to grow it, and should free() it to
+ * delete it.
+ */
+ int yy_is_our_buffer;
+
+ /* Whether this is an "interactive" input source; if so, and
+ * if we're using stdio for input, then we want to use getc()
+ * instead of fread(), to make sure we stop fetching input after
+ * each newline.
+ */
+ int yy_is_interactive;
+
+ /* Whether we're considered to be at the beginning of a line.
+ * If so, '^' rules will be active on the next match, otherwise
+ * not.
+ */
+ int yy_at_bol;
+
+ int yy_bs_lineno; /**< The line count. */
+ int yy_bs_column; /**< The column count. */
+
+ /* Whether to try to fill the input buffer when we reach the
+ * end of it.
+ */
+ int yy_fill_buffer;
+
+ int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+ /* When an EOF's been seen but there's still some text to process
+ * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+ * shouldn't try reading from the input source any more. We might
+ * still have a bunch of tokens to match, though, because of
+ * possible backing-up.
+ *
+ * When we actually see the EOF, we change the status to "new"
+ * (via glcpp_restart()), so that the user can continue scanning by
+ * just pointing yyin at a new input file.
+ */
+#define YY_BUFFER_EOF_PENDING 2
+
+ };
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( yyg->yy_buffer_stack \
+ ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \
+ : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]
+
+void glcpp_restart (FILE *input_file ,yyscan_t yyscanner );
+void glcpp__switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
+YY_BUFFER_STATE glcpp__create_buffer (FILE *file,int size ,yyscan_t yyscanner );
+void glcpp__delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
+void glcpp__flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
+void glcpp_push_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
+void glcpp_pop_buffer_state (yyscan_t yyscanner );
+
+static void glcpp_ensure_buffer_stack (yyscan_t yyscanner );
+static void glcpp__load_buffer_state (yyscan_t yyscanner );
+static void glcpp__init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan_t yyscanner );
+
+#define YY_FLUSH_BUFFER glcpp__flush_buffer(YY_CURRENT_BUFFER ,yyscanner)
+
+YY_BUFFER_STATE glcpp__scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
+YY_BUFFER_STATE glcpp__scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
+YY_BUFFER_STATE glcpp__scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
+
+void *glcpp_alloc (yy_size_t ,yyscan_t yyscanner );
+void *glcpp_realloc (void *,yy_size_t ,yyscan_t yyscanner );
+void glcpp_free (void * ,yyscan_t yyscanner );
+
+#define yy_new_buffer glcpp__create_buffer
+
+#define yy_set_interactive(is_interactive) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){ \
+ glcpp_ensure_buffer_stack (yyscanner); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ glcpp__create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+ }
+
+#define yy_set_bol(at_bol) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){\
+ glcpp_ensure_buffer_stack (yyscanner); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ glcpp__create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+ }
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define glcpp_wrap(n) 1
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+typedef int yy_state_type;
+
+#define yytext_ptr yytext_r
+
+static yy_state_type yy_get_previous_state (yyscan_t yyscanner );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state ,yyscan_t yyscanner);
+static int yy_get_next_buffer (yyscan_t yyscanner );
+static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up yytext.
+ */
+#define YY_DO_BEFORE_ACTION \
+ yyg->yytext_ptr = yy_bp; \
+ yyleng = (size_t) (yy_cp - yy_bp); \
+ yyg->yy_hold_char = *yy_cp; \
+ *yy_cp = '\0'; \
+ yyg->yy_c_buf_p = yy_cp;
+
+#define YY_NUM_RULES 43
+#define YY_END_OF_BUFFER 44
+/* This struct is not used in this scanner,
+ but its presence is necessary. */
+struct yy_trans_info
+ {
+ flex_int32_t yy_verify;
+ flex_int32_t yy_nxt;
+ };
+static yyconst flex_int16_t yy_acclist[137] =
+ { 0,
+ 3, 3, 44, 39, 43, 40, 43, 41, 43, 43,
+ 38, 43, 43, 38, 43, 38, 43, 38, 43, 25,
+ 39, 43, 24, 39, 43, 38, 43, 38, 43, 38,
+ 43, 37, 39, 43, 37, 39, 43, 38, 43, 40,
+ 43, 23, 43, 43, 3, 43, 4, 43, 5, 43,
+ 42, 43, 39, 18, 40, 32, 35, 33, 2, 1,
+ 25, 39, 25, 39, 39, 24, 39, 24, 39, 27,
+ 29, 31, 30, 28, 37, 39, 37, 39, 34, 40,
+ 23, 23, 3, 4, 5, 6, 5, 7, 1, 26,
+ 39, 37, 39,16398, 26, 39, 37, 39, 18, 37,
+
+ 39,16399,16400, 8206, 18, 8206, 37, 39, 8207, 18,
+ 8208, 18,16401, 19,16396, 22, 36, 37, 39, 21,
+ 8209, 18, 19, 8204, 18,16397,16404, 8205, 18, 11,
+ 18, 9, 8, 8212, 10, 18
+ } ;
+
+static yyconst flex_int16_t yy_accept[164] =
+ { 0,
+ 1, 1, 1, 1, 1, 2, 3, 3, 3, 4,
+ 6, 8, 10, 11, 13, 14, 16, 18, 20, 23,
+ 26, 28, 30, 32, 35, 38, 40, 42, 44, 45,
+ 47, 49, 51, 53, 54, 54, 55, 56, 57, 58,
+ 59, 60, 61, 63, 65, 66, 68, 70, 71, 72,
+ 73, 74, 75, 77, 79, 80, 81, 82, 83, 83,
+ 83, 83, 83, 83, 83, 83, 84, 85, 86, 87,
+ 88, 89, 90, 92, 94, 94, 94, 94, 94, 94,
+ 95, 95, 95, 95, 95, 97, 99, 99, 99, 99,
+ 99, 99, 99, 99, 100, 100, 100, 100, 100, 100,
+
+ 100, 102, 102, 103, 104, 104, 104, 104, 104, 106,
+ 106, 107, 107, 107, 107, 107, 107, 107, 109, 109,
+ 109, 111, 111, 113, 114, 115, 115, 116, 116, 116,
+ 116, 117, 117, 120, 121, 121, 123, 124, 124, 124,
+ 126, 127, 127, 127, 127, 128, 128, 128, 130, 130,
+ 132, 132, 133, 134, 134, 134, 134, 135, 135, 135,
+ 137, 137, 137
+ } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
+ 4, 4, 4, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 2, 5, 1, 6, 1, 7, 8, 1, 9,
+ 7, 10, 7, 7, 7, 7, 11, 12, 13, 13,
+ 13, 13, 13, 13, 13, 14, 14, 1, 7, 15,
+ 16, 17, 1, 1, 18, 18, 18, 18, 18, 18,
+ 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+ 19, 19, 19, 19, 20, 19, 19, 21, 19, 19,
+ 7, 1, 7, 7, 19, 1, 22, 18, 18, 23,
+
+ 24, 25, 26, 19, 27, 19, 19, 28, 29, 30,
+ 31, 32, 19, 33, 34, 35, 36, 37, 19, 38,
+ 19, 19, 7, 39, 7, 7, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1
+ } ;
+
+static yyconst flex_int32_t yy_meta[40] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1
+ } ;
+
+static yyconst flex_int16_t yy_base[182] =
+ { 0,
+ 0, 38, 0, 0, 38, 39, 499, 498, 500, 48,
+ 43, 552, 496, 44, 63, 495, 59, 65, 87, 125,
+ 58, 67, 68, 164, 203, 40, 75, 241, 552, 494,
+ 552, 140, 552, 140, 493, 552, 144, 492, 491, 487,
+ 486, 485, 156, 179, 267, 0, 209, 472, 471, 470,
+ 469, 468, 446, 124, 466, 153, 462, 458, 154, 198,
+ 159, 155, 183, 160, 193, 460, 552, 222, 552, 227,
+ 552, 459, 204, 161, 231, 232, 238, 243, 236, 303,
+ 245, 180, 247, 249, 281, 56, 257, 271, 248, 259,
+ 252, 264, 455, 454, 297, 299, 312, 313, 320, 294,
+
+ 407, 295, 427, 426, 321, 296, 324, 425, 552, 424,
+ 552, 327, 329, 195, 328, 331, 332, 230, 334, 378,
+ 552, 377, 552, 371, 370, 335, 365, 337, 358, 342,
+ 360, 344, 326, 255, 340, 552, 260, 338, 246, 552,
+ 197, 364, 192, 352, 382, 348, 186, 552, 420, 552,
+ 423, 184, 141, 437, 421, 447, 79, 476, 346, 552,
+ 453, 552, 515, 517, 519, 521, 523, 525, 71, 527,
+ 529, 531, 533, 535, 537, 539, 541, 543, 545, 547,
+ 549
+ } ;
+
+static yyconst flex_int16_t yy_def[182] =
+ { 0,
+ 162, 1, 163, 163, 164, 164, 165, 165, 162, 166,
+ 167, 162, 167, 167, 167, 167, 167, 167, 162, 166,
+ 167, 167, 167, 168, 168, 167, 167, 167, 162, 169,
+ 162, 170, 162, 20, 167, 162, 167, 167, 167, 167,
+ 167, 171, 19, 20, 20, 20, 20, 167, 167, 167,
+ 167, 167, 25, 25, 167, 167, 28, 28, 167, 167,
+ 167, 167, 167, 167, 167, 169, 162, 170, 162, 170,
+ 162, 171, 45, 25, 167, 167, 167, 167, 167, 167,
+ 167, 167, 167, 167, 20, 25, 167, 167, 167, 167,
+ 167, 167, 172, 173, 167, 167, 167, 167, 167, 167,
+
+ 25, 167, 174, 175, 167, 167, 167, 172, 162, 173,
+ 162, 167, 167, 167, 167, 167, 167, 25, 167, 174,
+ 162, 175, 162, 176, 177, 167, 178, 167, 167, 167,
+ 167, 167, 25, 167, 176, 162, 177, 167, 178, 162,
+ 179, 167, 180, 167, 162, 167, 179, 162, 167, 162,
+ 167, 180, 167, 181, 167, 167, 167, 181, 167, 162,
+ 167, 0, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162
+ } ;
+
+static yyconst flex_int16_t yy_nxt[592] =
+ { 0,
+ 10, 11, 12, 13, 14, 15, 16, 17, 16, 16,
+ 18, 19, 20, 20, 21, 22, 23, 24, 24, 24,
+ 24, 24, 25, 24, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 24, 24, 26, 27,
+ 31, 31, 36, 28, 37, 36, 36, 32, 32, 35,
+ 36, 35, 35, 35, 35, 35, 35, 35, 35, 38,
+ 36, 36, 35, 35, 35, 36, 40, 36, 39, 36,
+ 36, 66, 48, 49, 41, 42, 56, 36, 55, 53,
+ 57, 36, 50, 51, 52, 101, 35, 34, 35, 36,
+ 35, 35, 35, 35, 35, 35, 35, 35, 43, 43,
+
+ 34, 35, 35, 35, 34, 34, 44, 45, 34, 34,
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 34, 44, 34, 45, 35, 35, 36, 35, 35,
+ 35, 35, 35, 35, 35, 35, 46, 46, 46, 35,
+ 35, 35, 69, 36, 47, 37, 36, 53, 74, 70,
+ 71, 34, 34, 34, 56, 36, 36, 36, 57, 34,
+ 47, 36, 36, 35, 34, 35, 36, 35, 35, 35,
+ 35, 35, 35, 35, 35, 34, 34, 75, 35, 35,
+ 35, 81, 36, 80, 53, 36, 36, 86, 148, 83,
+ 34, 34, 34, 34, 36, 36, 129, 36, 34, 148,
+
+ 36, 98, 35, 34, 35, 36, 35, 35, 35, 35,
+ 35, 35, 35, 35, 34, 82, 84, 35, 35, 35,
+ 34, 34, 34, 85, 69, 76, 54, 77, 34, 69,
+ 78, 162, 162, 36, 36, 79, 70, 71, 36, 85,
+ 36, 35, 58, 36, 34, 36, 39, 36, 140, 36,
+ 36, 36, 133, 53, 36, 87, 145, 36, 88, 36,
+ 90, 36, 36, 59, 60, 89, 36, 61, 62, 99,
+ 92, 104, 63, 36, 97, 91, 64, 65, 73, 73,
+ 73, 100, 106, 102, 73, 105, 34, 107, 73, 73,
+ 73, 73, 34, 34, 34, 103, 36, 36, 36, 36,
+
+ 34, 36, 34, 93, 93, 94, 93, 93, 93, 93,
+ 93, 93, 93, 93, 36, 36, 34, 93, 93, 93,
+ 112, 113, 36, 36, 119, 95, 36, 117, 125, 36,
+ 36, 36, 96, 36, 36, 114, 36, 36, 115, 36,
+ 36, 93, 136, 116, 36, 124, 36, 159, 160, 53,
+ 36, 127, 128, 126, 36, 131, 130, 134, 132, 129,
+ 36, 141, 36, 143, 146, 149, 150, 140, 138, 142,
+ 142, 142, 36, 136, 144, 151, 151, 151, 155, 123,
+ 121, 153, 35, 145, 36, 35, 35, 35, 35, 35,
+ 35, 35, 35, 35, 35, 35, 35, 35, 35, 154,
+
+ 154, 154, 154, 154, 154, 154, 154, 154, 154, 154,
+ 154, 154, 154, 154, 154, 154, 154, 154, 154, 154,
+ 35, 149, 150, 36, 149, 150, 111, 109, 123, 121,
+ 118, 156, 156, 156, 151, 151, 151, 35, 35, 36,
+ 35, 35, 35, 35, 35, 157, 35, 35, 159, 160,
+ 143, 35, 35, 35, 159, 160, 111, 109, 161, 161,
+ 161, 36, 67, 35, 161, 161, 161, 35, 36, 53,
+ 36, 36, 36, 36, 36, 35, 35, 35, 36, 35,
+ 35, 35, 35, 35, 157, 35, 35, 36, 36, 36,
+ 35, 35, 35, 36, 36, 36, 67, 36, 36, 162,
+
+ 29, 29, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 35, 29, 29, 30, 30, 33,
+ 33, 34, 34, 35, 35, 53, 53, 68, 68, 72,
+ 72, 108, 108, 110, 110, 120, 120, 122, 122, 135,
+ 135, 137, 137, 139, 139, 147, 147, 152, 152, 158,
+ 158, 9, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162
+
+ } ;
+
+static yyconst flex_int16_t yy_chk[592] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ 5, 6, 26, 2, 11, 11, 14, 5, 6, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 14,
+ 21, 17, 10, 10, 10, 15, 17, 18, 15, 22,
+ 23, 169, 21, 21, 18, 18, 27, 27, 26, 86,
+ 27, 157, 22, 23, 23, 86, 10, 19, 19, 19,
+ 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+
+ 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+ 19, 19, 19, 19, 19, 19, 19, 19, 19, 19,
+ 19, 19, 19, 19, 19, 19, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 32, 153, 20, 37, 37, 54, 54, 32,
+ 32, 34, 34, 34, 56, 56, 59, 62, 56, 34,
+ 20, 61, 64, 20, 24, 24, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 34, 43, 59, 24, 24,
+ 24, 62, 82, 61, 74, 63, 152, 74, 147, 64,
+ 44, 44, 44, 43, 143, 65, 114, 114, 44, 141,
+
+ 60, 82, 24, 25, 25, 25, 25, 25, 25, 25,
+ 25, 25, 25, 25, 44, 63, 65, 25, 25, 25,
+ 47, 47, 47, 73, 68, 60, 25, 60, 47, 70,
+ 60, 68, 68, 75, 76, 60, 70, 70, 79, 73,
+ 77, 25, 28, 28, 47, 78, 28, 81, 139, 83,
+ 89, 84, 118, 118, 91, 75, 134, 134, 76, 87,
+ 77, 90, 137, 28, 28, 76, 92, 28, 28, 83,
+ 79, 89, 28, 88, 81, 78, 28, 28, 45, 45,
+ 45, 84, 91, 87, 45, 90, 45, 92, 45, 45,
+ 45, 45, 85, 85, 85, 88, 100, 102, 106, 95,
+
+ 85, 96, 45, 80, 80, 80, 80, 80, 80, 80,
+ 80, 80, 80, 80, 97, 98, 85, 80, 80, 80,
+ 95, 96, 99, 105, 102, 80, 107, 100, 106, 112,
+ 115, 113, 80, 116, 117, 97, 119, 126, 98, 128,
+ 138, 80, 135, 99, 130, 105, 132, 159, 159, 133,
+ 146, 112, 113, 107, 144, 116, 115, 119, 117, 129,
+ 129, 128, 131, 130, 138, 142, 142, 127, 126, 129,
+ 129, 129, 125, 124, 132, 142, 142, 142, 146, 122,
+ 120, 144, 145, 145, 145, 145, 145, 145, 145, 145,
+ 145, 145, 145, 145, 145, 145, 145, 145, 145, 145,
+
+ 145, 145, 145, 145, 145, 145, 145, 145, 145, 145,
+ 145, 145, 145, 145, 145, 145, 145, 145, 145, 145,
+ 145, 149, 149, 155, 151, 151, 110, 108, 104, 103,
+ 101, 149, 149, 149, 151, 151, 151, 154, 154, 154,
+ 154, 154, 154, 154, 154, 154, 154, 154, 156, 156,
+ 155, 154, 154, 154, 161, 161, 94, 93, 156, 156,
+ 156, 72, 66, 58, 161, 161, 161, 57, 55, 53,
+ 52, 51, 50, 49, 48, 154, 158, 158, 158, 158,
+ 158, 158, 158, 158, 158, 158, 158, 42, 41, 40,
+ 158, 158, 158, 39, 38, 35, 30, 16, 13, 9,
+
+ 8, 7, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 158, 163, 163, 164, 164, 165,
+ 165, 166, 166, 167, 167, 168, 168, 170, 170, 171,
+ 171, 172, 172, 173, 173, 174, 174, 175, 175, 176,
+ 176, 177, 177, 178, 178, 179, 179, 180, 180, 181,
+ 181, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162, 162, 162, 162, 162, 162, 162, 162, 162, 162,
+ 162
+
+ } ;
+
+#define YY_TRAILING_MASK 0x2000
+#define YY_TRAILING_HEAD_MASK 0x4000
+#define REJECT \
+{ \
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */ \
+yy_cp = yyg->yy_full_match; /* restore poss. backed-over text */ \
+yyg->yy_lp = yyg->yy_full_lp; /* restore orig. accepting pos. */ \
+yyg->yy_state_ptr = yyg->yy_full_state; /* restore orig. state */ \
+yy_current_state = *yyg->yy_state_ptr; /* restore curr. state */ \
+++yyg->yy_lp; \
+goto find_rule; \
+}
+
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+#line 1 "glcpp/glcpp-lex.l"
+#line 2 "glcpp/glcpp-lex.l"
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "glcpp.h"
+#include "glcpp-parse.h"
+
+/* Flex annoyingly generates some functions without making them
+ * static. Let's declare them here. */
+int glcpp_get_column (yyscan_t yyscanner);
+void glcpp_set_column (int column_no , yyscan_t yyscanner);
+
+#define YY_NO_INPUT
+
+#define YY_USER_ACTION \
+ do { \
+ yylloc->first_column = yycolumn + 1; \
+ yylloc->first_line = yylineno; \
+ yycolumn += yyleng; \
+ } while(0);
+
+#define YY_USER_INIT \
+ do { \
+ yylineno = 1; \
+ yycolumn = 1; \
+ yylloc->source = 0; \
+ } while(0)
+
+#line 709 "glcpp/glcpp-lex.c"
+
+#define INITIAL 0
+#define DONE 1
+#define COMMENT 2
+#define UNREACHABLE 3
+
+#define YY_EXTRA_TYPE glcpp_parser_t *
+
+/* Holds the entire state of the reentrant scanner. */
+struct yyguts_t
+ {
+
+ /* User-defined. Not touched by flex. */
+ YY_EXTRA_TYPE yyextra_r;
+
+ /* The rest are the same as the globals declared in the non-reentrant scanner. */
+ FILE *yyin_r, *yyout_r;
+ size_t yy_buffer_stack_top; /**< index of top of stack. */
+ size_t yy_buffer_stack_max; /**< capacity of stack. */
+ YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
+ char yy_hold_char;
+ int yy_n_chars;
+ int yyleng_r;
+ char *yy_c_buf_p;
+ int yy_init;
+ int yy_start;
+ int yy_did_buffer_switch_on_eof;
+ int yy_start_stack_ptr;
+ int yy_start_stack_depth;
+ int *yy_start_stack;
+ yy_state_type yy_last_accepting_state;
+ char* yy_last_accepting_cpos;
+
+ int yylineno_r;
+ int yy_flex_debug_r;
+
+ yy_state_type *yy_state_buf;
+ yy_state_type *yy_state_ptr;
+ char *yy_full_match;
+ int yy_lp;
+
+ /* These are only needed for trailing context rules,
+ * but there's no conditional variable for that yet. */
+ int yy_looking_for_trail_begin;
+ int yy_full_lp;
+ int *yy_full_state;
+
+ char *yytext_r;
+ int yy_more_flag;
+ int yy_more_len;
+
+ YYSTYPE * yylval_r;
+
+ YYLTYPE * yylloc_r;
+
+ }; /* end struct yyguts_t */
+
+static int yy_init_globals (yyscan_t yyscanner );
+
+ /* This must go here because YYSTYPE and YYLTYPE are included
+ * from bison output in section 1.*/
+ # define yylval yyg->yylval_r
+
+ # define yylloc yyg->yylloc_r
+
+int glcpp_lex_init (yyscan_t* scanner);
+
+int glcpp_lex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner);
+
+/* Accessor methods to globals.
+ These are made visible to non-reentrant scanners for convenience. */
+
+int glcpp_lex_destroy (yyscan_t yyscanner );
+
+int glcpp_get_debug (yyscan_t yyscanner );
+
+void glcpp_set_debug (int debug_flag ,yyscan_t yyscanner );
+
+YY_EXTRA_TYPE glcpp_get_extra (yyscan_t yyscanner );
+
+void glcpp_set_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner );
+
+FILE *glcpp_get_in (yyscan_t yyscanner );
+
+void glcpp_set_in (FILE * in_str ,yyscan_t yyscanner );
+
+FILE *glcpp_get_out (yyscan_t yyscanner );
+
+void glcpp_set_out (FILE * out_str ,yyscan_t yyscanner );
+
+int glcpp_get_leng (yyscan_t yyscanner );
+
+char *glcpp_get_text (yyscan_t yyscanner );
+
+int glcpp_get_lineno (yyscan_t yyscanner );
+
+void glcpp_set_lineno (int line_number ,yyscan_t yyscanner );
+
+YYSTYPE * glcpp_get_lval (yyscan_t yyscanner );
+
+void glcpp_set_lval (YYSTYPE * yylval_param ,yyscan_t yyscanner );
+
+ YYLTYPE *glcpp_get_lloc (yyscan_t yyscanner );
+
+ void glcpp_set_lloc (YYLTYPE * yylloc_param ,yyscan_t yyscanner );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int glcpp_wrap (yyscan_t yyscanner );
+#else
+extern int glcpp_wrap (yyscan_t yyscanner );
+#endif
+#endif
+
+ static void yyunput (int c,char *buf_ptr ,yyscan_t yyscanner);
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int ,yyscan_t yyscanner);
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (yyscan_t yyscanner );
+#else
+static int input (yyscan_t yyscanner );
+#endif
+
+#endif
+
+ static void yy_push_state (int new_state ,yyscan_t yyscanner);
+
+ static void yy_pop_state (yyscan_t yyscanner );
+
+ static int yy_top_state (yyscan_t yyscanner );
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k */
+#define YY_READ_BUF_SIZE 16384
+#else
+#define YY_READ_BUF_SIZE 8192
+#endif /* __ia64__ */
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
+#endif
+
+/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+ { \
+ int c = '*'; \
+ size_t n; \
+ for ( n = 0; n < max_size && \
+ (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
+ buf[n] = (char) c; \
+ if ( c == '\n' ) \
+ buf[n++] = (char) c; \
+ if ( c == EOF && ferror( yyin ) ) \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ result = n; \
+ } \
+ else \
+ { \
+ errno=0; \
+ while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
+ { \
+ if( errno != EINTR) \
+ { \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ break; \
+ } \
+ errno=0; \
+ clearerr(yyin); \
+ } \
+ }\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg , yyscanner)
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int glcpp_lex \
+ (YYSTYPE * yylval_param,YYLTYPE * yylloc_param ,yyscan_t yyscanner);
+
+#define YY_DECL int glcpp_lex \
+ (YYSTYPE * yylval_param, YYLTYPE * yylloc_param , yyscan_t yyscanner)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after yytext and yyleng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+#define YY_RULE_SETUP \
+ if ( yyleng > 0 ) \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
+ (yytext[yyleng - 1] == '\n'); \
+ YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp, *yy_bp;
+ register int yy_act;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+#line 76 "glcpp/glcpp-lex.l"
+
+
+ /* Single-line comments */
+#line 972 "glcpp/glcpp-lex.c"
+
+ yylval = yylval_param;
+
+ yylloc = yylloc_param;
+
+ if ( !yyg->yy_init )
+ {
+ yyg->yy_init = 1;
+
+#ifdef YY_USER_INIT
+ YY_USER_INIT;
+#endif
+
+ /* Create the reject buffer large enough to save one state per allowed character. */
+ if ( ! yyg->yy_state_buf )
+ yyg->yy_state_buf = (yy_state_type *)glcpp_alloc(YY_STATE_BUF_SIZE ,yyscanner);
+ if ( ! yyg->yy_state_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp_lex()" );
+
+ if ( ! yyg->yy_start )
+ yyg->yy_start = 1; /* first start state */
+
+ if ( ! yyin )
+ yyin = stdin;
+
+ if ( ! yyout )
+ yyout = stdout;
+
+ if ( ! YY_CURRENT_BUFFER ) {
+ glcpp_ensure_buffer_stack (yyscanner);
+ YY_CURRENT_BUFFER_LVALUE =
+ glcpp__create_buffer(yyin,YY_BUF_SIZE ,yyscanner);
+ }
+
+ glcpp__load_buffer_state(yyscanner );
+ }
+
+ while ( 1 ) /* loops until end-of-file is reached */
+ {
+ yy_cp = yyg->yy_c_buf_p;
+
+ /* Support of yytext. */
+ *yy_cp = yyg->yy_hold_char;
+
+ /* yy_bp points to the position in yy_ch_buf of the start of
+ * the current run.
+ */
+ yy_bp = yy_cp;
+
+ yy_current_state = yyg->yy_start;
+ yy_current_state += YY_AT_BOL();
+
+ yyg->yy_state_ptr = yyg->yy_state_buf;
+ *yyg->yy_state_ptr++ = yy_current_state;
+
+yy_match:
+ do
+ {
+ register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 163 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ *yyg->yy_state_ptr++ = yy_current_state;
+ ++yy_cp;
+ }
+ while ( yy_current_state != 162 );
+
+yy_find_action:
+ yy_current_state = *--yyg->yy_state_ptr;
+ yyg->yy_lp = yy_accept[yy_current_state];
+find_rule: /* we branch to this label when backing up */
+ for ( ; ; ) /* until we find what rule we matched */
+ {
+ if ( yyg->yy_lp && yyg->yy_lp < yy_accept[yy_current_state + 1] )
+ {
+ yy_act = yy_acclist[yyg->yy_lp];
+ if ( yy_act & YY_TRAILING_HEAD_MASK ||
+ yyg->yy_looking_for_trail_begin )
+ {
+ if ( yy_act == yyg->yy_looking_for_trail_begin )
+ {
+ yyg->yy_looking_for_trail_begin = 0;
+ yy_act &= ~YY_TRAILING_HEAD_MASK;
+ break;
+ }
+ }
+ else if ( yy_act & YY_TRAILING_MASK )
+ {
+ yyg->yy_looking_for_trail_begin = yy_act & ~YY_TRAILING_MASK;
+ yyg->yy_looking_for_trail_begin |= YY_TRAILING_HEAD_MASK;
+ yyg->yy_full_match = yy_cp;
+ yyg->yy_full_state = yyg->yy_state_ptr;
+ yyg->yy_full_lp = yyg->yy_lp;
+ }
+ else
+ {
+ yyg->yy_full_match = yy_cp;
+ yyg->yy_full_state = yyg->yy_state_ptr;
+ yyg->yy_full_lp = yyg->yy_lp;
+ break;
+ }
+ ++yyg->yy_lp;
+ goto find_rule;
+ }
+ --yy_cp;
+ yy_current_state = *--yyg->yy_state_ptr;
+ yyg->yy_lp = yy_accept[yy_current_state];
+ }
+
+ YY_DO_BEFORE_ACTION;
+
+do_action: /* This label is used only to access EOF actions. */
+
+ switch ( yy_act )
+ { /* beginning of action switch */
+case 1:
+YY_RULE_SETUP
+#line 79 "glcpp/glcpp-lex.l"
+{
+}
+ YY_BREAK
+/* Multi-line comments */
+case 2:
+YY_RULE_SETUP
+#line 83 "glcpp/glcpp-lex.l"
+{ yy_push_state(COMMENT, yyscanner); }
+ YY_BREAK
+case 3:
+YY_RULE_SETUP
+#line 84 "glcpp/glcpp-lex.l"
+
+ YY_BREAK
+case 4:
+/* rule 4 can match eol */
+YY_RULE_SETUP
+#line 85 "glcpp/glcpp-lex.l"
+{ yylineno++; yycolumn = 0; }
+ YY_BREAK
+case 5:
+YY_RULE_SETUP
+#line 86 "glcpp/glcpp-lex.l"
+
+ YY_BREAK
+case 6:
+/* rule 6 can match eol */
+YY_RULE_SETUP
+#line 87 "glcpp/glcpp-lex.l"
+{ yylineno++; yycolumn = 0; }
+ YY_BREAK
+case 7:
+YY_RULE_SETUP
+#line 88 "glcpp/glcpp-lex.l"
+{
+ yy_pop_state(yyscanner);
+ if (yyextra->space_tokens)
+ return SPACE;
+}
+ YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 94 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ yyextra->space_tokens = 0;
+ return HASH_VERSION;
+}
+ YY_BREAK
+/* glcpp doesn't handle #extension, #version, or #pragma directives.
+ * Simply pass them through to the main compiler's lexer/parser. */
+case 9:
+YY_RULE_SETUP
+#line 102 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ yylineno++;
+ yycolumn = 0;
+ return OTHER;
+}
+ YY_BREAK
+case 10:
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */
+yyg->yy_c_buf_p = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up yytext again */
+YY_RULE_SETUP
+#line 109 "glcpp/glcpp-lex.l"
+{
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+ yylloc->source = strtol(ptr, NULL, 0);
+}
+ YY_BREAK
+case 11:
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */
+yyg->yy_c_buf_p = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up yytext again */
+YY_RULE_SETUP
+#line 125 "glcpp/glcpp-lex.l"
+{
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+}
+ YY_BREAK
+case 12:
+/* rule 12 can match eol */
+YY_RULE_SETUP
+#line 140 "glcpp/glcpp-lex.l"
+{
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_IFDEF;
+}
+ YY_BREAK
+case 13:
+/* rule 13 can match eol */
+YY_RULE_SETUP
+#line 146 "glcpp/glcpp-lex.l"
+{
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_IFNDEF;
+}
+ YY_BREAK
+case 14:
+/* rule 14 can match eol */
+YY_RULE_SETUP
+#line 152 "glcpp/glcpp-lex.l"
+{
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_IF;
+}
+ YY_BREAK
+case 15:
+/* rule 15 can match eol */
+YY_RULE_SETUP
+#line 158 "glcpp/glcpp-lex.l"
+{
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_ELIF;
+}
+ YY_BREAK
+case 16:
+/* rule 16 can match eol */
+YY_RULE_SETUP
+#line 164 "glcpp/glcpp-lex.l"
+{
+ yyextra->space_tokens = 0;
+ return HASH_ELSE;
+}
+ YY_BREAK
+case 17:
+/* rule 17 can match eol */
+YY_RULE_SETUP
+#line 169 "glcpp/glcpp-lex.l"
+{
+ yyextra->space_tokens = 0;
+ return HASH_ENDIF;
+}
+ YY_BREAK
+/* When skipping (due to an #if 0 or similar) consume anything
+ * up to a newline. We do this with less priority than any
+ * #if-related directive (#if, #elif, #else, #endif), but with
+ * more priority than any other directive or token to avoid
+ * any side-effects from skipped content.
+ *
+ * We use the lexing_if flag to avoid skipping any part of an
+ * if conditional expression. */
+case 18:
+/* rule 18 can match eol */
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */
+yyg->yy_c_buf_p = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up yytext again */
+YY_RULE_SETUP
+#line 182 "glcpp/glcpp-lex.l"
+{
+ /* Since this rule always matches, YY_USER_ACTION gets called for it,
+ * wrongly incrementing yycolumn. We undo that effect here. */
+ yycolumn -= yyleng;
+ if (yyextra->lexing_if ||
+ yyextra->skip_stack == NULL ||
+ yyextra->skip_stack->type == SKIP_NO_SKIP)
+ {
+ REJECT;
+ }
+}
+ YY_BREAK
+case 19:
+YY_RULE_SETUP
+#line 194 "glcpp/glcpp-lex.l"
+{
+ char *p;
+ for (p = yytext; !isalpha(p[0]); p++); /* skip " # " */
+ p += 5; /* skip "error" */
+ glcpp_error(yylloc, yyextra, "#error%s", p);
+}
+ YY_BREAK
+case 20:
+YY_RULE_SETUP
+#line 201 "glcpp/glcpp-lex.l"
+{
+ yyextra->space_tokens = 0;
+ return HASH_DEFINE_FUNC;
+}
+ YY_BREAK
+case 21:
+YY_RULE_SETUP
+#line 206 "glcpp/glcpp-lex.l"
+{
+ yyextra->space_tokens = 0;
+ return HASH_DEFINE_OBJ;
+}
+ YY_BREAK
+case 22:
+YY_RULE_SETUP
+#line 211 "glcpp/glcpp-lex.l"
+{
+ yyextra->space_tokens = 0;
+ return HASH_UNDEF;
+}
+ YY_BREAK
+case 23:
+YY_RULE_SETUP
+#line 216 "glcpp/glcpp-lex.l"
+{
+ yyextra->space_tokens = 0;
+ return HASH;
+}
+ YY_BREAK
+case 24:
+YY_RULE_SETUP
+#line 221 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return INTEGER_STRING;
+}
+ YY_BREAK
+case 25:
+YY_RULE_SETUP
+#line 226 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return INTEGER_STRING;
+}
+ YY_BREAK
+case 26:
+YY_RULE_SETUP
+#line 231 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return INTEGER_STRING;
+}
+ YY_BREAK
+case 27:
+YY_RULE_SETUP
+#line 236 "glcpp/glcpp-lex.l"
+{
+ return LEFT_SHIFT;
+}
+ YY_BREAK
+case 28:
+YY_RULE_SETUP
+#line 240 "glcpp/glcpp-lex.l"
+{
+ return RIGHT_SHIFT;
+}
+ YY_BREAK
+case 29:
+YY_RULE_SETUP
+#line 244 "glcpp/glcpp-lex.l"
+{
+ return LESS_OR_EQUAL;
+}
+ YY_BREAK
+case 30:
+YY_RULE_SETUP
+#line 248 "glcpp/glcpp-lex.l"
+{
+ return GREATER_OR_EQUAL;
+}
+ YY_BREAK
+case 31:
+YY_RULE_SETUP
+#line 252 "glcpp/glcpp-lex.l"
+{
+ return EQUAL;
+}
+ YY_BREAK
+case 32:
+YY_RULE_SETUP
+#line 256 "glcpp/glcpp-lex.l"
+{
+ return NOT_EQUAL;
+}
+ YY_BREAK
+case 33:
+YY_RULE_SETUP
+#line 260 "glcpp/glcpp-lex.l"
+{
+ return AND;
+}
+ YY_BREAK
+case 34:
+YY_RULE_SETUP
+#line 264 "glcpp/glcpp-lex.l"
+{
+ return OR;
+}
+ YY_BREAK
+case 35:
+YY_RULE_SETUP
+#line 268 "glcpp/glcpp-lex.l"
+{
+ return PASTE;
+}
+ YY_BREAK
+case 36:
+YY_RULE_SETUP
+#line 272 "glcpp/glcpp-lex.l"
+{
+ return DEFINED;
+}
+ YY_BREAK
+case 37:
+YY_RULE_SETUP
+#line 276 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return IDENTIFIER;
+}
+ YY_BREAK
+case 38:
+YY_RULE_SETUP
+#line 281 "glcpp/glcpp-lex.l"
+{
+ return yytext[0];
+}
+ YY_BREAK
+case 39:
+YY_RULE_SETUP
+#line 285 "glcpp/glcpp-lex.l"
+{
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return OTHER;
+}
+ YY_BREAK
+case 40:
+YY_RULE_SETUP
+#line 290 "glcpp/glcpp-lex.l"
+{
+ if (yyextra->space_tokens) {
+ return SPACE;
+ }
+}
+ YY_BREAK
+case 41:
+/* rule 41 can match eol */
+YY_RULE_SETUP
+#line 296 "glcpp/glcpp-lex.l"
+{
+ yyextra->lexing_if = 0;
+ yylineno++;
+ yycolumn = 0;
+ return NEWLINE;
+}
+ YY_BREAK
+/* Handle missing newline at EOF. */
+case YY_STATE_EOF(INITIAL):
+#line 304 "glcpp/glcpp-lex.l"
+{
+ BEGIN DONE; /* Don't keep matching this rule forever. */
+ yyextra->lexing_if = 0;
+ return NEWLINE;
+}
+ YY_BREAK
+/* We don't actually use the UNREACHABLE start condition. We
+ only have this action here so that we can pretend to call some
+ generated functions, (to avoid "defined but not used"
+ warnings. */
+case 42:
+YY_RULE_SETUP
+#line 314 "glcpp/glcpp-lex.l"
+{
+ unput('.');
+ yy_top_state(yyextra);
+}
+ YY_BREAK
+case 43:
+YY_RULE_SETUP
+#line 319 "glcpp/glcpp-lex.l"
+ECHO;
+ YY_BREAK
+#line 1489 "glcpp/glcpp-lex.c"
+ case YY_STATE_EOF(DONE):
+ case YY_STATE_EOF(COMMENT):
+ case YY_STATE_EOF(UNREACHABLE):
+ yyterminate();
+
+ case YY_END_OF_BUFFER:
+ {
+ /* Amount of text matched not including the EOB char. */
+ int yy_amount_of_matched_text = (int) (yy_cp - yyg->yytext_ptr) - 1;
+
+ /* Undo the effects of YY_DO_BEFORE_ACTION. */
+ *yy_cp = yyg->yy_hold_char;
+ YY_RESTORE_YY_MORE_OFFSET
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+ {
+ /* We're scanning a new file or input source. It's
+ * possible that this happened because the user
+ * just pointed yyin at a new source and called
+ * glcpp_lex(). If so, then we have to assure
+ * consistency between YY_CURRENT_BUFFER and our
+ * globals. Here is the right place to do so, because
+ * this is the first action (other than possibly a
+ * back-up) that will match for the new input source.
+ */
+ yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+ }
+
+ /* Note that here we test for yy_c_buf_p "<=" to the position
+ * of the first EOB in the buffer, since yy_c_buf_p will
+ * already have been incremented past the NUL character
+ * (since all states make transitions on EOB to the
+ * end-of-buffer state). Contrast this with the test
+ * in input().
+ */
+ if ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
+ { /* This was really a NUL. */
+ yy_state_type yy_next_state;
+
+ yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( yyscanner );
+
+ /* Okay, we're now positioned to make the NUL
+ * transition. We couldn't have
+ * yy_get_previous_state() go ahead and do it
+ * for us because it doesn't know how to deal
+ * with the possibility of jamming (and we don't
+ * want to build jamming into it because then it
+ * will run more slowly).
+ */
+
+ yy_next_state = yy_try_NUL_trans( yy_current_state , yyscanner);
+
+ yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
+
+ if ( yy_next_state )
+ {
+ /* Consume the NUL. */
+ yy_cp = ++yyg->yy_c_buf_p;
+ yy_current_state = yy_next_state;
+ goto yy_match;
+ }
+
+ else
+ {
+ yy_cp = yyg->yy_c_buf_p;
+ goto yy_find_action;
+ }
+ }
+
+ else switch ( yy_get_next_buffer( yyscanner ) )
+ {
+ case EOB_ACT_END_OF_FILE:
+ {
+ yyg->yy_did_buffer_switch_on_eof = 0;
+
+ if ( glcpp_wrap(yyscanner ) )
+ {
+ /* Note: because we've taken care in
+ * yy_get_next_buffer() to have set up
+ * yytext, we can now set up
+ * yy_c_buf_p so that if some total
+ * hoser (like flex itself) wants to
+ * call the scanner after we return the
+ * YY_NULL, it'll still work - another
+ * YY_NULL will get returned.
+ */
+ yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ;
+
+ yy_act = YY_STATE_EOF(YY_START);
+ goto do_action;
+ }
+
+ else
+ {
+ if ( ! yyg->yy_did_buffer_switch_on_eof )
+ YY_NEW_FILE;
+ }
+ break;
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ yyg->yy_c_buf_p =
+ yyg->yytext_ptr + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( yyscanner );
+
+ yy_cp = yyg->yy_c_buf_p;
+ yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
+ goto yy_match;
+
+ case EOB_ACT_LAST_MATCH:
+ yyg->yy_c_buf_p =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars];
+
+ yy_current_state = yy_get_previous_state( yyscanner );
+
+ yy_cp = yyg->yy_c_buf_p;
+ yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
+ goto yy_find_action;
+ }
+ break;
+ }
+
+ default:
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--no action found" );
+ } /* end of action switch */
+ } /* end of scanning one token */
+} /* end of glcpp_lex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ * EOB_ACT_LAST_MATCH -
+ * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ * EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+ register char *source = yyg->yytext_ptr;
+ register int number_to_move, i;
+ int ret_val;
+
+ if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] )
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--end of buffer missed" );
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+ { /* Don't try to fill the buffer, so this is an EOF. */
+ if ( yyg->yy_c_buf_p - yyg->yytext_ptr - YY_MORE_ADJ == 1 )
+ {
+ /* We matched a single character, the EOB, so
+ * treat this as a final EOF.
+ */
+ return EOB_ACT_END_OF_FILE;
+ }
+
+ else
+ {
+ /* We matched some text prior to the EOB, first
+ * process it.
+ */
+ return EOB_ACT_LAST_MATCH;
+ }
+ }
+
+ /* Try to read more data. */
+
+ /* First move last chars to start of buffer. */
+ number_to_move = (int) (yyg->yy_c_buf_p - yyg->yytext_ptr) - 1;
+
+ for ( i = 0; i < number_to_move; ++i )
+ *(dest++) = *(source++);
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+ /* don't do the read, it's not guaranteed to return an EOF,
+ * just force an EOF
+ */
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars = 0;
+
+ else
+ {
+ int num_to_read =
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+ while ( num_to_read <= 0 )
+ { /* Not enough room in the buffer - grow it. */
+
+ YY_FATAL_ERROR(
+"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
+
+ }
+
+ if ( num_to_read > YY_READ_BUF_SIZE )
+ num_to_read = YY_READ_BUF_SIZE;
+
+ /* Read in more data. */
+ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+ yyg->yy_n_chars, (size_t) num_to_read );
+
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
+ }
+
+ if ( yyg->yy_n_chars == 0 )
+ {
+ if ( number_to_move == YY_MORE_ADJ )
+ {
+ ret_val = EOB_ACT_END_OF_FILE;
+ glcpp_restart(yyin ,yyscanner);
+ }
+
+ else
+ {
+ ret_val = EOB_ACT_LAST_MATCH;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+ YY_BUFFER_EOF_PENDING;
+ }
+ }
+
+ else
+ ret_val = EOB_ACT_CONTINUE_SCAN;
+
+ if ((yy_size_t) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+ /* Extend the array by 50%, plus the number we really need. */
+ yy_size_t new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) glcpp_realloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ,yyscanner );
+ if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
+ }
+
+ yyg->yy_n_chars += number_to_move;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
+
+ yyg->yytext_ptr = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+ return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+ static yy_state_type yy_get_previous_state (yyscan_t yyscanner)
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ yy_current_state = yyg->yy_start;
+ yy_current_state += YY_AT_BOL();
+
+ yyg->yy_state_ptr = yyg->yy_state_buf;
+ *yyg->yy_state_ptr++ = yy_current_state;
+
+ for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp )
+ {
+ register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 163 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ *yyg->yy_state_ptr++ = yy_current_state;
+ }
+
+ return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ * next_state = yy_try_NUL_trans( current_state );
+ */
+ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state , yyscan_t yyscanner)
+{
+ register int yy_is_jam;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */
+
+ register YY_CHAR yy_c = 1;
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 163 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ yy_is_jam = (yy_current_state == 162);
+ if ( ! yy_is_jam )
+ *yyg->yy_state_ptr++ = yy_current_state;
+
+ return yy_is_jam ? 0 : yy_current_state;
+}
+
+ static void yyunput (int c, register char * yy_bp , yyscan_t yyscanner)
+{
+ register char *yy_cp;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ yy_cp = yyg->yy_c_buf_p;
+
+ /* undo effects of setting up yytext */
+ *yy_cp = yyg->yy_hold_char;
+
+ if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+ { /* need to shift things up to make room */
+ /* +2 for EOB chars. */
+ register int number_to_move = yyg->yy_n_chars + 2;
+ register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
+ register char *source =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
+
+ while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+ *--dest = *--source;
+
+ yy_cp += (int) (dest - source);
+ yy_bp += (int) (dest - source);
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
+ yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
+
+ if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+ YY_FATAL_ERROR( "flex scanner push-back overflow" );
+ }
+
+ *--yy_cp = (char) c;
+
+ yyg->yytext_ptr = yy_bp;
+ yyg->yy_hold_char = *yy_cp;
+ yyg->yy_c_buf_p = yy_cp;
+}
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+ static int yyinput (yyscan_t yyscanner)
+#else
+ static int input (yyscan_t yyscanner)
+#endif
+
+{
+ int c;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ *yyg->yy_c_buf_p = yyg->yy_hold_char;
+
+ if ( *yyg->yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
+ {
+ /* yy_c_buf_p now points to the character we want to return.
+ * If this occurs *before* the EOB characters, then it's a
+ * valid NUL; if not, then we've hit the end of the buffer.
+ */
+ if ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
+ /* This was really a NUL. */
+ *yyg->yy_c_buf_p = '\0';
+
+ else
+ { /* need more input */
+ int offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
+ ++yyg->yy_c_buf_p;
+
+ switch ( yy_get_next_buffer( yyscanner ) )
+ {
+ case EOB_ACT_LAST_MATCH:
+ /* This happens because yy_g_n_b()
+ * sees that we've accumulated a
+ * token and flags that we need to
+ * try matching the token before
+ * proceeding. But for input(),
+ * there's no matching to consider.
+ * So convert the EOB_ACT_LAST_MATCH
+ * to EOB_ACT_END_OF_FILE.
+ */
+
+ /* Reset buffer status. */
+ glcpp_restart(yyin ,yyscanner);
+
+ /*FALLTHROUGH*/
+
+ case EOB_ACT_END_OF_FILE:
+ {
+ if ( glcpp_wrap(yyscanner ) )
+ return EOF;
+
+ if ( ! yyg->yy_did_buffer_switch_on_eof )
+ YY_NEW_FILE;
+#ifdef __cplusplus
+ return yyinput(yyscanner);
+#else
+ return input(yyscanner);
+#endif
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ yyg->yy_c_buf_p = yyg->yytext_ptr + offset;
+ break;
+ }
+ }
+ }
+
+ c = *(unsigned char *) yyg->yy_c_buf_p; /* cast for 8-bit char's */
+ *yyg->yy_c_buf_p = '\0'; /* preserve yytext */
+ yyg->yy_hold_char = *++yyg->yy_c_buf_p;
+
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = (c == '\n');
+
+ return c;
+}
+#endif /* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ * @param yyscanner The scanner object.
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+ void glcpp_restart (FILE * input_file , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if ( ! YY_CURRENT_BUFFER ){
+ glcpp_ensure_buffer_stack (yyscanner);
+ YY_CURRENT_BUFFER_LVALUE =
+ glcpp__create_buffer(yyin,YY_BUF_SIZE ,yyscanner);
+ }
+
+ glcpp__init_buffer(YY_CURRENT_BUFFER,input_file ,yyscanner);
+ glcpp__load_buffer_state(yyscanner );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ * @param yyscanner The scanner object.
+ */
+ void glcpp__switch_to_buffer (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* TODO. We should be able to replace this entire function body
+ * with
+ * glcpp_pop_buffer_state();
+ * glcpp_push_buffer_state(new_buffer);
+ */
+ glcpp_ensure_buffer_stack (yyscanner);
+ if ( YY_CURRENT_BUFFER == new_buffer )
+ return;
+
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *yyg->yy_c_buf_p = yyg->yy_hold_char;
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
+ }
+
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+ glcpp__load_buffer_state(yyscanner );
+
+ /* We don't actually know whether we did this switch during
+ * EOF (glcpp_wrap()) processing, but the only time this flag
+ * is looked at is after glcpp_wrap() is called, so it's safe
+ * to go ahead and always set it.
+ */
+ yyg->yy_did_buffer_switch_on_eof = 1;
+}
+
+static void glcpp__load_buffer_state (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+ yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+ yyg->yy_hold_char = *yyg->yy_c_buf_p;
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ * @param yyscanner The scanner object.
+ * @return the allocated buffer state.
+ */
+ YY_BUFFER_STATE glcpp__create_buffer (FILE * file, int size , yyscan_t yyscanner)
+{
+ YY_BUFFER_STATE b;
+
+ b = (YY_BUFFER_STATE) glcpp_alloc(sizeof( struct yy_buffer_state ) ,yyscanner );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp__create_buffer()" );
+
+ b->yy_buf_size = size;
+
+ /* yy_ch_buf has to be 2 characters longer than the size given because
+ * we need to put in 2 end-of-buffer characters.
+ */
+ b->yy_ch_buf = (char *) glcpp_alloc(b->yy_buf_size + 2 ,yyscanner );
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp__create_buffer()" );
+
+ b->yy_is_our_buffer = 1;
+
+ glcpp__init_buffer(b,file ,yyscanner);
+
+ return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with glcpp__create_buffer()
+ * @param yyscanner The scanner object.
+ */
+ void glcpp__delete_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if ( ! b )
+ return;
+
+ if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+ if ( b->yy_is_our_buffer )
+ glcpp_free((void *) b->yy_ch_buf ,yyscanner );
+
+ glcpp_free((void *) b ,yyscanner );
+}
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a glcpp_restart() or at EOF.
+ */
+ static void glcpp__init_buffer (YY_BUFFER_STATE b, FILE * file , yyscan_t yyscanner)
+
+{
+ int oerrno = errno;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ glcpp__flush_buffer(b ,yyscanner);
+
+ b->yy_input_file = file;
+ b->yy_fill_buffer = 1;
+
+ /* If b is the current buffer, then glcpp__init_buffer was _probably_
+ * called from glcpp_restart() or through yy_get_next_buffer.
+ * In that case, we don't want to reset the lineno or column.
+ */
+ if (b != YY_CURRENT_BUFFER){
+ b->yy_bs_lineno = 1;
+ b->yy_bs_column = 0;
+ }
+
+ b->yy_is_interactive = 0;
+
+ errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ * @param yyscanner The scanner object.
+ */
+ void glcpp__flush_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if ( ! b )
+ return;
+
+ b->yy_n_chars = 0;
+
+ /* We always need two end-of-buffer characters. The first causes
+ * a transition to the end-of-buffer state. The second causes
+ * a jam in that state.
+ */
+ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+ b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+ b->yy_buf_pos = &b->yy_ch_buf[0];
+
+ b->yy_at_bol = 1;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ if ( b == YY_CURRENT_BUFFER )
+ glcpp__load_buffer_state(yyscanner );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ * the current state. This function will allocate the stack
+ * if necessary.
+ * @param new_buffer The new state.
+ * @param yyscanner The scanner object.
+ */
+void glcpp_push_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if (new_buffer == NULL)
+ return;
+
+ glcpp_ensure_buffer_stack(yyscanner);
+
+ /* This block is copied from glcpp__switch_to_buffer. */
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *yyg->yy_c_buf_p = yyg->yy_hold_char;
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
+ }
+
+ /* Only push if top exists. Otherwise, replace top. */
+ if (YY_CURRENT_BUFFER)
+ yyg->yy_buffer_stack_top++;
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+ /* copied from glcpp__switch_to_buffer. */
+ glcpp__load_buffer_state(yyscanner );
+ yyg->yy_did_buffer_switch_on_eof = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ * The next element becomes the new top.
+ * @param yyscanner The scanner object.
+ */
+void glcpp_pop_buffer_state (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if (!YY_CURRENT_BUFFER)
+ return;
+
+ glcpp__delete_buffer(YY_CURRENT_BUFFER ,yyscanner);
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ if (yyg->yy_buffer_stack_top > 0)
+ --yyg->yy_buffer_stack_top;
+
+ if (YY_CURRENT_BUFFER) {
+ glcpp__load_buffer_state(yyscanner );
+ yyg->yy_did_buffer_switch_on_eof = 1;
+ }
+}
+
+/* Allocates the stack if it does not exist.
+ * Guarantees space for at least one push.
+ */
+static void glcpp_ensure_buffer_stack (yyscan_t yyscanner)
+{
+ int num_to_alloc;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if (!yyg->yy_buffer_stack) {
+
+ /* First allocation is just for 2 elements, since we don't know if this
+ * scanner will even need a stack. We use 2 instead of 1 to avoid an
+ * immediate realloc on the next call.
+ */
+ num_to_alloc = 1;
+ yyg->yy_buffer_stack = (struct yy_buffer_state**)glcpp_alloc
+ (num_to_alloc * sizeof(struct yy_buffer_state*)
+ , yyscanner);
+ if ( ! yyg->yy_buffer_stack )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp_ensure_buffer_stack()" );
+
+ memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+
+ yyg->yy_buffer_stack_max = num_to_alloc;
+ yyg->yy_buffer_stack_top = 0;
+ return;
+ }
+
+ if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){
+
+ /* Increase the buffer to prepare for a possible push. */
+ int grow_size = 8 /* arbitrary grow size */;
+
+ num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
+ yyg->yy_buffer_stack = (struct yy_buffer_state**)glcpp_realloc
+ (yyg->yy_buffer_stack,
+ num_to_alloc * sizeof(struct yy_buffer_state*)
+ , yyscanner);
+ if ( ! yyg->yy_buffer_stack )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp_ensure_buffer_stack()" );
+
+ /* zero only the new slots.*/
+ memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*));
+ yyg->yy_buffer_stack_max = num_to_alloc;
+ }
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ * @param yyscanner The scanner object.
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE glcpp__scan_buffer (char * base, yy_size_t size , yyscan_t yyscanner)
+{
+ YY_BUFFER_STATE b;
+
+ if ( size < 2 ||
+ base[size-2] != YY_END_OF_BUFFER_CHAR ||
+ base[size-1] != YY_END_OF_BUFFER_CHAR )
+ /* They forgot to leave room for the EOB's. */
+ return 0;
+
+ b = (YY_BUFFER_STATE) glcpp_alloc(sizeof( struct yy_buffer_state ) ,yyscanner );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp__scan_buffer()" );
+
+ b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
+ b->yy_buf_pos = b->yy_ch_buf = base;
+ b->yy_is_our_buffer = 0;
+ b->yy_input_file = 0;
+ b->yy_n_chars = b->yy_buf_size;
+ b->yy_is_interactive = 0;
+ b->yy_at_bol = 1;
+ b->yy_fill_buffer = 0;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ glcpp__switch_to_buffer(b ,yyscanner );
+
+ return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to glcpp_lex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ * @param yyscanner The scanner object.
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ * glcpp__scan_bytes() instead.
+ */
+YY_BUFFER_STATE glcpp__scan_string (yyconst char * yystr , yyscan_t yyscanner)
+{
+
+ return glcpp__scan_bytes(yystr,strlen(yystr) ,yyscanner);
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to glcpp_lex() will
+ * scan from a @e copy of @a bytes.
+ * @param yybytes the byte buffer to scan
+ * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
+ * @param yyscanner The scanner object.
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE glcpp__scan_bytes (yyconst char * yybytes, int _yybytes_len , yyscan_t yyscanner)
+{
+ YY_BUFFER_STATE b;
+ char *buf;
+ yy_size_t n;
+ int i;
+
+ /* Get memory for full buffer, including space for trailing EOB's. */
+ n = _yybytes_len + 2;
+ buf = (char *) glcpp_alloc(n ,yyscanner );
+ if ( ! buf )
+ YY_FATAL_ERROR( "out of dynamic memory in glcpp__scan_bytes()" );
+
+ for ( i = 0; i < _yybytes_len; ++i )
+ buf[i] = yybytes[i];
+
+ buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+ b = glcpp__scan_buffer(buf,n ,yyscanner);
+ if ( ! b )
+ YY_FATAL_ERROR( "bad buffer in glcpp__scan_bytes()" );
+
+ /* It's okay to grow etc. this buffer, and we should throw it
+ * away when we're done.
+ */
+ b->yy_is_our_buffer = 1;
+
+ return b;
+}
+
+ static void yy_push_state (int new_state , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if ( yyg->yy_start_stack_ptr >= yyg->yy_start_stack_depth )
+ {
+ yy_size_t new_size;
+
+ yyg->yy_start_stack_depth += YY_START_STACK_INCR;
+ new_size = yyg->yy_start_stack_depth * sizeof( int );
+
+ if ( ! yyg->yy_start_stack )
+ yyg->yy_start_stack = (int *) glcpp_alloc(new_size ,yyscanner );
+
+ else
+ yyg->yy_start_stack = (int *) glcpp_realloc((void *) yyg->yy_start_stack,new_size ,yyscanner );
+
+ if ( ! yyg->yy_start_stack )
+ YY_FATAL_ERROR( "out of memory expanding start-condition stack" );
+ }
+
+ yyg->yy_start_stack[yyg->yy_start_stack_ptr++] = YY_START;
+
+ BEGIN(new_state);
+}
+
+ static void yy_pop_state (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if ( --yyg->yy_start_stack_ptr < 0 )
+ YY_FATAL_ERROR( "start-condition stack underflow" );
+
+ BEGIN(yyg->yy_start_stack[yyg->yy_start_stack_ptr]);
+}
+
+ static int yy_top_state (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyg->yy_start_stack[yyg->yy_start_stack_ptr - 1];
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yy_fatal_error (yyconst char* msg , yyscan_t yyscanner)
+{
+ (void) fprintf( stderr, "%s\n", msg );
+ exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up yytext. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ yytext[yyleng] = yyg->yy_hold_char; \
+ yyg->yy_c_buf_p = yytext + yyless_macro_arg; \
+ yyg->yy_hold_char = *yyg->yy_c_buf_p; \
+ *yyg->yy_c_buf_p = '\0'; \
+ yyleng = yyless_macro_arg; \
+ } \
+ while ( 0 )
+
+/* Accessor methods (get/set functions) to struct members. */
+
+/** Get the user-defined data for this scanner.
+ * @param yyscanner The scanner object.
+ */
+YY_EXTRA_TYPE glcpp_get_extra (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyextra;
+}
+
+/** Get the current line number.
+ * @param yyscanner The scanner object.
+ */
+int glcpp_get_lineno (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if (! YY_CURRENT_BUFFER)
+ return 0;
+
+ return yylineno;
+}
+
+/** Get the current column number.
+ * @param yyscanner The scanner object.
+ */
+int glcpp_get_column (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if (! YY_CURRENT_BUFFER)
+ return 0;
+
+ return yycolumn;
+}
+
+/** Get the input stream.
+ * @param yyscanner The scanner object.
+ */
+FILE *glcpp_get_in (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyin;
+}
+
+/** Get the output stream.
+ * @param yyscanner The scanner object.
+ */
+FILE *glcpp_get_out (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyout;
+}
+
+/** Get the length of the current token.
+ * @param yyscanner The scanner object.
+ */
+int glcpp_get_leng (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyleng;
+}
+
+/** Get the current token.
+ * @param yyscanner The scanner object.
+ */
+
+char *glcpp_get_text (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yytext;
+}
+
+/** Set the user-defined data. This data is never touched by the scanner.
+ * @param user_defined The data to be associated with this scanner.
+ * @param yyscanner The scanner object.
+ */
+void glcpp_set_extra (YY_EXTRA_TYPE user_defined , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyextra = user_defined ;
+}
+
+/** Set the current line number.
+ * @param line_number
+ * @param yyscanner The scanner object.
+ */
+void glcpp_set_lineno (int line_number , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* lineno is only valid if an input buffer exists. */
+ if (! YY_CURRENT_BUFFER )
+ yy_fatal_error( "glcpp_set_lineno called with no buffer" , yyscanner);
+
+ yylineno = line_number;
+}
+
+/** Set the current column.
+ * @param line_number
+ * @param yyscanner The scanner object.
+ */
+void glcpp_set_column (int column_no , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* column is only valid if an input buffer exists. */
+ if (! YY_CURRENT_BUFFER )
+ yy_fatal_error( "glcpp_set_column called with no buffer" , yyscanner);
+
+ yycolumn = column_no;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ * @param yyscanner The scanner object.
+ * @see glcpp__switch_to_buffer
+ */
+void glcpp_set_in (FILE * in_str , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyin = in_str ;
+}
+
+void glcpp_set_out (FILE * out_str , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyout = out_str ;
+}
+
+int glcpp_get_debug (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yy_flex_debug;
+}
+
+void glcpp_set_debug (int bdebug , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yy_flex_debug = bdebug ;
+}
+
+/* Accessor methods for yylval and yylloc */
+
+YYSTYPE * glcpp_get_lval (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yylval;
+}
+
+void glcpp_set_lval (YYSTYPE * yylval_param , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yylval = yylval_param;
+}
+
+YYLTYPE *glcpp_get_lloc (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yylloc;
+}
+
+void glcpp_set_lloc (YYLTYPE * yylloc_param , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yylloc = yylloc_param;
+}
+
+/* User-visible API */
+
+/* glcpp_lex_init is special because it creates the scanner itself, so it is
+ * the ONLY reentrant function that doesn't take the scanner as the last argument.
+ * That's why we explicitly handle the declaration, instead of using our macros.
+ */
+
+int glcpp_lex_init(yyscan_t* ptr_yy_globals)
+
+{
+ if (ptr_yy_globals == NULL){
+ errno = EINVAL;
+ return 1;
+ }
+
+ *ptr_yy_globals = (yyscan_t) glcpp_alloc ( sizeof( struct yyguts_t ), NULL );
+
+ if (*ptr_yy_globals == NULL){
+ errno = ENOMEM;
+ return 1;
+ }
+
+ /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
+ memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
+
+ return yy_init_globals ( *ptr_yy_globals );
+}
+
+/* glcpp_lex_init_extra has the same functionality as glcpp_lex_init, but follows the
+ * convention of taking the scanner as the last argument. Note however, that
+ * this is a *pointer* to a scanner, as it will be allocated by this call (and
+ * is the reason, too, why this function also must handle its own declaration).
+ * The user defined value in the first argument will be available to glcpp_alloc in
+ * the yyextra field.
+ */
+
+int glcpp_lex_init_extra(YY_EXTRA_TYPE yy_user_defined,yyscan_t* ptr_yy_globals )
+
+{
+ struct yyguts_t dummy_yyguts;
+
+ glcpp_set_extra (yy_user_defined, &dummy_yyguts);
+
+ if (ptr_yy_globals == NULL){
+ errno = EINVAL;
+ return 1;
+ }
+
+ *ptr_yy_globals = (yyscan_t) glcpp_alloc ( sizeof( struct yyguts_t ), &dummy_yyguts );
+
+ if (*ptr_yy_globals == NULL){
+ errno = ENOMEM;
+ return 1;
+ }
+
+ /* By setting to 0xAA, we expose bugs in
+ yy_init_globals. Leave at 0x00 for releases. */
+ memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
+
+ glcpp_set_extra (yy_user_defined, *ptr_yy_globals);
+
+ return yy_init_globals ( *ptr_yy_globals );
+}
+
+static int yy_init_globals (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ /* Initialization is the same as for the non-reentrant scanner.
+ * This function is called from glcpp_lex_destroy(), so don't allocate here.
+ */
+
+ yyg->yy_buffer_stack = 0;
+ yyg->yy_buffer_stack_top = 0;
+ yyg->yy_buffer_stack_max = 0;
+ yyg->yy_c_buf_p = (char *) 0;
+ yyg->yy_init = 0;
+ yyg->yy_start = 0;
+
+ yyg->yy_start_stack_ptr = 0;
+ yyg->yy_start_stack_depth = 0;
+ yyg->yy_start_stack = NULL;
+
+ yyg->yy_state_buf = 0;
+ yyg->yy_state_ptr = 0;
+ yyg->yy_full_match = 0;
+ yyg->yy_lp = 0;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+ yyin = stdin;
+ yyout = stdout;
+#else
+ yyin = (FILE *) 0;
+ yyout = (FILE *) 0;
+#endif
+
+ /* For future reference: Set errno on error, since we are called by
+ * glcpp_lex_init()
+ */
+ return 0;
+}
+
+/* glcpp_lex_destroy is for both reentrant and non-reentrant scanners. */
+int glcpp_lex_destroy (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* Pop the buffer stack, destroying each element. */
+ while(YY_CURRENT_BUFFER){
+ glcpp__delete_buffer(YY_CURRENT_BUFFER ,yyscanner );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ glcpp_pop_buffer_state(yyscanner);
+ }
+
+ /* Destroy the stack itself. */
+ glcpp_free(yyg->yy_buffer_stack ,yyscanner);
+ yyg->yy_buffer_stack = NULL;
+
+ /* Destroy the start condition stack. */
+ glcpp_free(yyg->yy_start_stack ,yyscanner );
+ yyg->yy_start_stack = NULL;
+
+ glcpp_free ( yyg->yy_state_buf , yyscanner);
+ yyg->yy_state_buf = NULL;
+
+ /* Reset the globals. This is important in a non-reentrant scanner so the next time
+ * glcpp_lex() is called, initialization will occur. */
+ yy_init_globals( yyscanner);
+
+ /* Destroy the main struct (reentrant only). */
+ glcpp_free ( yyscanner , yyscanner );
+ yyscanner = NULL;
+ return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n , yyscan_t yyscanner)
+{
+ register int i;
+ for ( i = 0; i < n; ++i )
+ s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
+{
+ register int n;
+ for ( n = 0; s[n]; ++n )
+ ;
+
+ return n;
+}
+#endif
+
+void *glcpp_alloc (yy_size_t size , yyscan_t yyscanner)
+{
+ return (void *) malloc( size );
+}
+
+void *glcpp_realloc (void * ptr, yy_size_t size , yyscan_t yyscanner)
+{
+ /* The cast to (char *) in the following accommodates both
+ * implementations that use char* generic pointers, and those
+ * that use void* generic pointers. It works with the latter
+ * because both ANSI C and C++ allow castless assignment from
+ * any pointer type to void*, and deal with argument conversions
+ * as though doing an assignment.
+ */
+ return (void *) realloc( (char *) ptr, size );
+}
+
+void glcpp_free (void * ptr , yyscan_t yyscanner)
+{
+ free( (char *) ptr ); /* see glcpp_realloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+#line 319 "glcpp/glcpp-lex.l"
+
+
+
+void
+glcpp_lex_set_source_string(glcpp_parser_t *parser, const char *shader)
+{
+ glcpp__scan_string(shader,parser->scanner);
+}
+
diff --git a/mesalib/src/glsl/glcpp/glcpp-lex.l b/mesalib/src/glsl/glcpp/glcpp-lex.l
new file mode 100644
index 000000000..8eb84ed13
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp-lex.l
@@ -0,0 +1,325 @@
+%{
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "glcpp.h"
+#include "glcpp-parse.h"
+
+/* Flex annoyingly generates some functions without making them
+ * static. Let's declare them here. */
+int glcpp_get_column (yyscan_t yyscanner);
+void glcpp_set_column (int column_no , yyscan_t yyscanner);
+
+#define YY_NO_INPUT
+
+#define YY_USER_ACTION \
+ do { \
+ yylloc->first_column = yycolumn + 1; \
+ yylloc->first_line = yylineno; \
+ yycolumn += yyleng; \
+ } while(0);
+
+#define YY_USER_INIT \
+ do { \
+ yylineno = 1; \
+ yycolumn = 1; \
+ yylloc->source = 0; \
+ } while(0)
+%}
+
+%option bison-bridge bison-locations reentrant noyywrap
+%option extra-type="glcpp_parser_t *"
+%option prefix="glcpp_"
+%option stack
+%option never-interactive
+
+%x DONE COMMENT UNREACHABLE
+
+SPACE [[:space:]]
+NONSPACE [^[:space:]]
+NEWLINE [\n]
+HSPACE [ \t]
+HASH ^{HSPACE}*#{HSPACE}*
+IDENTIFIER [_a-zA-Z][_a-zA-Z0-9]*
+PUNCTUATION [][(){}.&*~!/%<>^|;,=+-]
+OTHER [^][(){}.&*~!/%<>^|;,=#[:space:]+-]+
+
+DIGITS [0-9][0-9]*
+DECIMAL_INTEGER [1-9][0-9]*[uU]?
+OCTAL_INTEGER 0[0-7]*[uU]?
+HEXADECIMAL_INTEGER 0[xX][0-9a-fA-F]+[uU]?
+
+%%
+
+ /* Single-line comments */
+"//"[^\n]* {
+}
+
+ /* Multi-line comments */
+"/*" { yy_push_state(COMMENT, yyscanner); }
+<COMMENT>[^*\n]*
+<COMMENT>[^*\n]*\n { yylineno++; yycolumn = 0; }
+<COMMENT>"*"+[^*/\n]*
+<COMMENT>"*"+[^*/\n]*\n { yylineno++; yycolumn = 0; }
+<COMMENT>"*"+"/" {
+ yy_pop_state(yyscanner);
+ if (yyextra->space_tokens)
+ return SPACE;
+}
+
+{HASH}version {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ yyextra->space_tokens = 0;
+ return HASH_VERSION;
+}
+
+ /* glcpp doesn't handle #extension, #version, or #pragma directives.
+ * Simply pass them through to the main compiler's lexer/parser. */
+{HASH}(extension|pragma)[^\n]+ {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ yylineno++;
+ yycolumn = 0;
+ return OTHER;
+}
+
+{HASH}line{HSPACE}+{DIGITS}{HSPACE}+{DIGITS}{HSPACE}*$ {
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+ yylloc->source = strtol(ptr, NULL, 0);
+}
+
+{HASH}line{HSPACE}+{DIGITS}{HSPACE}*$ {
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+}
+
+{HASH}ifdef/.*\n {
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_IFDEF;
+}
+
+{HASH}ifndef/.*\n {
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_IFNDEF;
+}
+
+{HASH}if/[^_a-zA-Z0-9].*\n {
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_IF;
+}
+
+{HASH}elif/.*\n {
+ yyextra->lexing_if = 1;
+ yyextra->space_tokens = 0;
+ return HASH_ELIF;
+}
+
+{HASH}else/.*\n {
+ yyextra->space_tokens = 0;
+ return HASH_ELSE;
+}
+
+{HASH}endif/.*\n {
+ yyextra->space_tokens = 0;
+ return HASH_ENDIF;
+}
+
+ /* When skipping (due to an #if 0 or similar) consume anything
+ * up to a newline. We do this with less priority than any
+ * #if-related directive (#if, #elif, #else, #endif), but with
+ * more priority than any other directive or token to avoid
+ * any side-effects from skipped content.
+ *
+ * We use the lexing_if flag to avoid skipping any part of an
+ * if conditional expression. */
+[^\n]+/\n {
+ /* Since this rule always matches, YY_USER_ACTION gets called for it,
+ * wrongly incrementing yycolumn. We undo that effect here. */
+ yycolumn -= yyleng;
+ if (yyextra->lexing_if ||
+ yyextra->skip_stack == NULL ||
+ yyextra->skip_stack->type == SKIP_NO_SKIP)
+ {
+ REJECT;
+ }
+}
+
+{HASH}error.* {
+ char *p;
+ for (p = yytext; !isalpha(p[0]); p++); /* skip " # " */
+ p += 5; /* skip "error" */
+ glcpp_error(yylloc, yyextra, "#error%s", p);
+}
+
+{HASH}define{HSPACE}+/{IDENTIFIER}"(" {
+ yyextra->space_tokens = 0;
+ return HASH_DEFINE_FUNC;
+}
+
+{HASH}define {
+ yyextra->space_tokens = 0;
+ return HASH_DEFINE_OBJ;
+}
+
+{HASH}undef {
+ yyextra->space_tokens = 0;
+ return HASH_UNDEF;
+}
+
+{HASH} {
+ yyextra->space_tokens = 0;
+ return HASH;
+}
+
+{DECIMAL_INTEGER} {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return INTEGER_STRING;
+}
+
+{OCTAL_INTEGER} {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return INTEGER_STRING;
+}
+
+{HEXADECIMAL_INTEGER} {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return INTEGER_STRING;
+}
+
+"<<" {
+ return LEFT_SHIFT;
+}
+
+">>" {
+ return RIGHT_SHIFT;
+}
+
+"<=" {
+ return LESS_OR_EQUAL;
+}
+
+">=" {
+ return GREATER_OR_EQUAL;
+}
+
+"==" {
+ return EQUAL;
+}
+
+"!=" {
+ return NOT_EQUAL;
+}
+
+"&&" {
+ return AND;
+}
+
+"||" {
+ return OR;
+}
+
+"##" {
+ return PASTE;
+}
+
+"defined" {
+ return DEFINED;
+}
+
+{IDENTIFIER} {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return IDENTIFIER;
+}
+
+{PUNCTUATION} {
+ return yytext[0];
+}
+
+{OTHER}+ {
+ yylval->str = talloc_strdup (yyextra, yytext);
+ return OTHER;
+}
+
+{HSPACE}+ {
+ if (yyextra->space_tokens) {
+ return SPACE;
+ }
+}
+
+\n {
+ yyextra->lexing_if = 0;
+ yylineno++;
+ yycolumn = 0;
+ return NEWLINE;
+}
+
+ /* Handle missing newline at EOF. */
+<INITIAL><<EOF>> {
+ BEGIN DONE; /* Don't keep matching this rule forever. */
+ yyextra->lexing_if = 0;
+ return NEWLINE;
+}
+
+ /* We don't actually use the UNREACHABLE start condition. We
+ only have this action here so that we can pretend to call some
+ generated functions, (to avoid "defined but not used"
+ warnings. */
+<UNREACHABLE>. {
+ unput('.');
+ yy_top_state(yyextra);
+}
+
+%%
+
+void
+glcpp_lex_set_source_string(glcpp_parser_t *parser, const char *shader)
+{
+ yy_scan_string(shader, parser->scanner);
+}
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.c b/mesalib/src/glsl/glcpp/glcpp-parse.c
new file mode 100644
index 000000000..1773ca5c1
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp-parse.c
@@ -0,0 +1,4184 @@
+/* A Bison parser, made by GNU Bison 2.4.3. */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2009, 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+/* Identify Bison output. */
+#define YYBISON 1
+
+/* Bison version. */
+#define YYBISON_VERSION "2.4.3"
+
+/* Skeleton name. */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers. */
+#define YYPURE 1
+
+/* Push parsers. */
+#define YYPUSH 0
+
+/* Pull parsers. */
+#define YYPULL 1
+
+/* Using locations. */
+#define YYLSP_NEEDED 1
+
+
+
+/* Copy the first part of user declarations. */
+
+/* Line 189 of yacc.c */
+#line 1 "glcpp/glcpp-parse.y"
+
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <inttypes.h>
+
+#include "glcpp.h"
+#include "main/core.h" /* for struct gl_extensions */
+#include "main/mtypes.h" /* for gl_api enum */
+
+#define glcpp_print(stream, str) stream = talloc_strdup_append(stream, str)
+#define glcpp_printf(stream, fmt, args, ...) \
+ stream = talloc_asprintf_append(stream, fmt, args)
+
+static void
+yyerror (YYLTYPE *locp, glcpp_parser_t *parser, const char *error);
+
+static void
+_define_object_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *macro,
+ token_list_t *replacements);
+
+static void
+_define_function_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *macro,
+ string_list_t *parameters,
+ token_list_t *replacements);
+
+static string_list_t *
+_string_list_create (void *ctx);
+
+static void
+_string_list_append_item (string_list_t *list, const char *str);
+
+static int
+_string_list_contains (string_list_t *list, const char *member, int *index);
+
+static int
+_string_list_length (string_list_t *list);
+
+static int
+_string_list_equal (string_list_t *a, string_list_t *b);
+
+static argument_list_t *
+_argument_list_create (void *ctx);
+
+static void
+_argument_list_append (argument_list_t *list, token_list_t *argument);
+
+static int
+_argument_list_length (argument_list_t *list);
+
+static token_list_t *
+_argument_list_member_at (argument_list_t *list, int index);
+
+/* Note: This function talloc_steal()s the str pointer. */
+static token_t *
+_token_create_str (void *ctx, int type, char *str);
+
+static token_t *
+_token_create_ival (void *ctx, int type, int ival);
+
+static token_list_t *
+_token_list_create (void *ctx);
+
+/* Note: This function adds a talloc_reference() to token.
+ *
+ * You may want to talloc_unlink any current reference if you no
+ * longer need it. */
+static void
+_token_list_append (token_list_t *list, token_t *token);
+
+static void
+_token_list_append_list (token_list_t *list, token_list_t *tail);
+
+static int
+_token_list_equal_ignoring_space (token_list_t *a, token_list_t *b);
+
+static active_list_t *
+_active_list_push (active_list_t *list,
+ const char *identifier,
+ token_node_t *marker);
+
+static active_list_t *
+_active_list_pop (active_list_t *list);
+
+int
+_active_list_contains (active_list_t *list, const char *identifier);
+
+static void
+_glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list);
+
+static void
+_glcpp_parser_expand_token_list (glcpp_parser_t *parser,
+ token_list_t *list);
+
+static void
+_glcpp_parser_print_expanded_token_list (glcpp_parser_t *parser,
+ token_list_t *list);
+
+static void
+_glcpp_parser_skip_stack_push_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ int condition);
+
+static void
+_glcpp_parser_skip_stack_change_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ const char *type, int condition);
+
+static void
+_glcpp_parser_skip_stack_pop (glcpp_parser_t *parser, YYLTYPE *loc);
+
+#define yylex glcpp_parser_lex
+
+static int
+glcpp_parser_lex (YYSTYPE *yylval, YYLTYPE *yylloc, glcpp_parser_t *parser);
+
+static void
+glcpp_parser_lex_from (glcpp_parser_t *parser, token_list_t *list);
+
+static void
+add_builtin_define(glcpp_parser_t *parser, const char *name, int value);
+
+
+
+/* Line 189 of yacc.c */
+#line 223 "glcpp/glcpp-parse.c"
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 1
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ COMMA_FINAL = 258,
+ DEFINED = 259,
+ ELIF_EXPANDED = 260,
+ HASH = 261,
+ HASH_DEFINE_FUNC = 262,
+ HASH_DEFINE_OBJ = 263,
+ HASH_ELIF = 264,
+ HASH_ELSE = 265,
+ HASH_ENDIF = 266,
+ HASH_IF = 267,
+ HASH_IFDEF = 268,
+ HASH_IFNDEF = 269,
+ HASH_UNDEF = 270,
+ HASH_VERSION = 271,
+ IDENTIFIER = 272,
+ IF_EXPANDED = 273,
+ INTEGER = 274,
+ INTEGER_STRING = 275,
+ NEWLINE = 276,
+ OTHER = 277,
+ PLACEHOLDER = 278,
+ SPACE = 279,
+ PASTE = 280,
+ OR = 281,
+ AND = 282,
+ NOT_EQUAL = 283,
+ EQUAL = 284,
+ GREATER_OR_EQUAL = 285,
+ LESS_OR_EQUAL = 286,
+ RIGHT_SHIFT = 287,
+ LEFT_SHIFT = 288,
+ UNARY = 289
+ };
+#endif
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+/* Copy the second part of user declarations. */
+
+
+/* Line 264 of yacc.c */
+#line 311 "glcpp/glcpp-parse.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int yyi)
+#else
+static int
+YYID (yyi)
+ int yyi;
+#endif
+{
+ return yyi;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+ && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss_alloc;
+ YYSTYPE yyvs_alloc;
+ YYLTYPE yyls_alloc;
+};
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ + 2 * YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
+ Stack = &yyptr->Stack_alloc; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL 2
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST 606
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS 57
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS 17
+/* YYNRULES -- Number of rules. */
+#define YYNRULES 101
+/* YYNRULES -- Number of states. */
+#define YYNSTATES 162
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK 2
+#define YYMAXUTOK 289
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 47, 2, 2, 2, 43, 30, 2,
+ 45, 46, 41, 39, 49, 40, 54, 42, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 55,
+ 33, 56, 34, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 50, 2, 51, 29, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 52, 28, 53, 48, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 31, 32, 35, 36, 37, 38, 44
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const yytype_uint16 yyprhs[] =
+{
+ 0, 0, 3, 4, 7, 9, 11, 13, 16, 20,
+ 24, 29, 36, 44, 48, 52, 55, 60, 65, 69,
+ 72, 75, 78, 82, 85, 87, 89, 91, 95, 99,
+ 103, 107, 111, 115, 119, 123, 127, 131, 135, 139,
+ 143, 147, 151, 155, 159, 163, 166, 169, 172, 175,
+ 179, 181, 185, 187, 190, 193, 194, 196, 197, 199,
+ 202, 207, 209, 211, 214, 216, 219, 221, 223, 225,
+ 227, 229, 231, 233, 235, 237, 239, 241, 243, 245,
+ 247, 249, 251, 253, 255, 257, 259, 261, 263, 265,
+ 267, 269, 271, 273, 275, 277, 279, 281, 283, 285,
+ 287, 289
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yytype_int8 yyrhs[] =
+{
+ 58, 0, -1, -1, 58, 59, -1, 61, -1, 65,
+ -1, 60, -1, 6, 66, -1, 18, 63, 21, -1,
+ 5, 63, 21, -1, 8, 17, 67, 21, -1, 7,
+ 17, 45, 46, 67, 21, -1, 7, 17, 45, 64,
+ 46, 67, 21, -1, 15, 17, 21, -1, 12, 70,
+ 21, -1, 12, 21, -1, 13, 17, 68, 21, -1,
+ 14, 17, 68, 21, -1, 9, 70, 21, -1, 9,
+ 21, -1, 10, 21, -1, 11, 21, -1, 16, 62,
+ 21, -1, 6, 21, -1, 20, -1, 19, -1, 62,
+ -1, 63, 26, 63, -1, 63, 27, 63, -1, 63,
+ 28, 63, -1, 63, 29, 63, -1, 63, 30, 63,
+ -1, 63, 31, 63, -1, 63, 32, 63, -1, 63,
+ 35, 63, -1, 63, 36, 63, -1, 63, 34, 63,
+ -1, 63, 33, 63, -1, 63, 37, 63, -1, 63,
+ 38, 63, -1, 63, 40, 63, -1, 63, 39, 63,
+ -1, 63, 43, 63, -1, 63, 42, 63, -1, 63,
+ 41, 63, -1, 47, 63, -1, 48, 63, -1, 40,
+ 63, -1, 39, 63, -1, 45, 63, 46, -1, 17,
+ -1, 64, 49, 17, -1, 21, -1, 71, 21, -1,
+ 71, 21, -1, -1, 71, -1, -1, 71, -1, 4,
+ 17, -1, 4, 45, 17, 46, -1, 72, -1, 69,
+ -1, 70, 69, -1, 72, -1, 71, 72, -1, 17,
+ -1, 20, -1, 73, -1, 22, -1, 24, -1, 50,
+ -1, 51, -1, 45, -1, 46, -1, 52, -1, 53,
+ -1, 54, -1, 30, -1, 41, -1, 39, -1, 40,
+ -1, 48, -1, 47, -1, 42, -1, 43, -1, 38,
+ -1, 37, -1, 33, -1, 34, -1, 36, -1, 35,
+ -1, 32, -1, 31, -1, 29, -1, 28, -1, 27,
+ -1, 26, -1, 55, -1, 49, -1, 56, -1, 25,
+ -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const yytype_uint16 yyrline[] =
+{
+ 0, 188, 188, 190, 194, 197, 202, 203, 207, 210,
+ 216, 219, 222, 225, 233, 252, 262, 267, 272, 291,
+ 306, 309, 312, 325, 329, 338, 343, 344, 347, 350,
+ 353, 356, 359, 362, 365, 368, 371, 374, 377, 380,
+ 383, 386, 389, 392, 395, 398, 401, 404, 407, 410,
+ 416, 421, 429, 430, 434, 440, 441, 444, 446, 453,
+ 457, 461, 466, 472, 480, 486, 494, 498, 502, 506,
+ 510, 517, 518, 519, 520, 521, 522, 523, 524, 525,
+ 526, 527, 528, 529, 530, 531, 532, 533, 534, 535,
+ 536, 537, 538, 539, 540, 541, 542, 543, 544, 545,
+ 546, 547
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ "$end", "error", "$undefined", "COMMA_FINAL", "DEFINED",
+ "ELIF_EXPANDED", "HASH", "HASH_DEFINE_FUNC", "HASH_DEFINE_OBJ",
+ "HASH_ELIF", "HASH_ELSE", "HASH_ENDIF", "HASH_IF", "HASH_IFDEF",
+ "HASH_IFNDEF", "HASH_UNDEF", "HASH_VERSION", "IDENTIFIER", "IF_EXPANDED",
+ "INTEGER", "INTEGER_STRING", "NEWLINE", "OTHER", "PLACEHOLDER", "SPACE",
+ "PASTE", "OR", "AND", "'|'", "'^'", "'&'", "NOT_EQUAL", "EQUAL", "'<'",
+ "'>'", "GREATER_OR_EQUAL", "LESS_OR_EQUAL", "RIGHT_SHIFT", "LEFT_SHIFT",
+ "'+'", "'-'", "'*'", "'/'", "'%'", "UNARY", "'('", "')'", "'!'", "'~'",
+ "','", "'['", "']'", "'{'", "'}'", "'.'", "';'", "'='", "$accept",
+ "input", "line", "expanded_line", "control_line", "integer_constant",
+ "expression", "identifier_list", "text_line", "non_directive",
+ "replacement_list", "junk", "conditional_token", "conditional_tokens",
+ "pp_tokens", "preprocessing_token", "operator", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
+ 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
+ 275, 276, 277, 278, 279, 280, 281, 282, 124, 94,
+ 38, 283, 284, 60, 62, 285, 286, 287, 288, 43,
+ 45, 42, 47, 37, 289, 40, 41, 33, 126, 44,
+ 91, 93, 123, 125, 46, 59, 61
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const yytype_uint8 yyr1[] =
+{
+ 0, 57, 58, 58, 59, 59, 59, 59, 60, 60,
+ 61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
+ 61, 61, 61, 61, 62, 62, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
+ 64, 64, 65, 65, 66, 67, 67, 68, 68, 69,
+ 69, 69, 70, 70, 71, 71, 72, 72, 72, 72,
+ 72, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+ 73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+ 73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+ 73, 73
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 0, 2, 1, 1, 1, 2, 3, 3,
+ 4, 6, 7, 3, 3, 2, 4, 4, 3, 2,
+ 2, 2, 3, 2, 1, 1, 1, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 2, 2, 2, 2, 3,
+ 1, 3, 1, 2, 2, 0, 1, 0, 1, 2,
+ 4, 1, 1, 2, 1, 2, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+ STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const yytype_uint8 yydefact[] =
+{
+ 2, 0, 1, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 66, 0, 67, 52, 69,
+ 70, 101, 97, 96, 95, 94, 78, 93, 92, 88,
+ 89, 91, 90, 87, 86, 80, 81, 79, 84, 85,
+ 73, 74, 83, 82, 99, 71, 72, 75, 76, 77,
+ 98, 100, 3, 6, 4, 5, 0, 64, 68, 25,
+ 24, 0, 0, 0, 0, 0, 26, 0, 23, 7,
+ 0, 0, 55, 0, 19, 62, 0, 61, 20, 21,
+ 15, 0, 57, 57, 0, 0, 0, 53, 65, 48,
+ 47, 0, 45, 46, 9, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 54, 0, 0, 56, 59, 0, 18,
+ 63, 14, 0, 58, 0, 13, 22, 8, 49, 27,
+ 28, 29, 30, 31, 32, 33, 37, 36, 34, 35,
+ 38, 39, 41, 40, 44, 43, 42, 50, 55, 0,
+ 10, 0, 16, 17, 0, 55, 0, 60, 11, 0,
+ 51, 12
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yytype_int16 yydefgoto[] =
+{
+ -1, 1, 52, 53, 54, 66, 67, 149, 55, 69,
+ 115, 122, 75, 76, 116, 57, 58
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF -147
+static const yytype_int16 yypact[] =
+{
+ -147, 112, -147, 28, -10, 55, 62, 152, -15, 59,
+ 192, 85, 86, 87, 51, -147, 28, -147, -147, -147,
+ -147, -147, -147, -147, -147, -147, -147, -147, -147, -147,
+ -147, -147, -147, -147, -147, -147, -147, -147, -147, -147,
+ -147, -147, -147, -147, -147, -147, -147, -147, -147, -147,
+ -147, -147, -147, -147, -147, -147, 312, -147, -147, -147,
+ -147, 28, 28, 28, 28, 28, -147, 428, -147, -147,
+ 352, 63, 392, 17, -147, -147, 232, -147, -147, -147,
+ -147, 272, 392, 392, 84, 89, 451, -147, -147, -147,
+ -147, 469, -147, -147, -147, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, -147, 60, 90, 392, -147, 96, -147,
+ -147, -147, 93, 392, 94, -147, -147, -147, -147, 489,
+ 505, 520, 534, 547, 558, 558, 18, 18, 18, 18,
+ 563, 563, 23, 23, -147, -147, -147, -147, 392, 32,
+ -147, 61, -147, -147, 110, 392, 118, -147, -147, 149,
+ -147, -147
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const yytype_int16 yypgoto[] =
+{
+ -147, -147, -147, -147, -147, 157, -11, -147, -147, -147,
+ -146, 92, -68, 200, 0, -7, -147
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF -1
+static const yytype_uint8 yytable[] =
+{
+ 77, 56, 154, 77, 70, 86, 78, 15, 120, 159,
+ 17, 68, 19, 120, 20, 21, 22, 23, 24, 25,
+ 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
+ 36, 37, 38, 39, 117, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 59, 60, 88,
+ 89, 90, 91, 92, 93, 106, 107, 108, 109, 110,
+ 111, 112, 118, 88, 110, 111, 112, 61, 62, 77,
+ 59, 60, 71, 63, 77, 64, 65, 147, 155, 72,
+ 79, 156, 123, 123, 129, 130, 131, 132, 133, 134,
+ 135, 136, 137, 138, 139, 140, 141, 142, 143, 144,
+ 145, 146, 82, 83, 84, 125, 148, 157, 114, 88,
+ 126, 150, 2, 151, 152, 153, 88, 3, 4, 5,
+ 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 158, 17, 18, 19, 160, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 73, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 161, 85, 17, 74, 19, 124, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 73, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 81, 0, 17, 80, 19, 0, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 73, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 0, 0, 17, 119, 19, 0, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 73, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 0, 0, 17, 121, 19, 0, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 0, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 0, 0, 17, 87, 19, 0, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 0, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 0, 0, 17, 113, 19, 0, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 0, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 15,
+ 0, 0, 17, 0, 19, 0, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 0, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 94,
+ 0, 0, 0, 0, 95, 96, 97, 98, 99, 100,
+ 101, 102, 103, 104, 105, 106, 107, 108, 109, 110,
+ 111, 112, 127, 0, 0, 0, 0, 95, 96, 97,
+ 98, 99, 100, 101, 102, 103, 104, 105, 106, 107,
+ 108, 109, 110, 111, 112, 95, 96, 97, 98, 99,
+ 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
+ 110, 111, 112, 0, 0, 128, 96, 97, 98, 99,
+ 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
+ 110, 111, 112, 97, 98, 99, 100, 101, 102, 103,
+ 104, 105, 106, 107, 108, 109, 110, 111, 112, 98,
+ 99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
+ 109, 110, 111, 112, 99, 100, 101, 102, 103, 104,
+ 105, 106, 107, 108, 109, 110, 111, 112, 100, 101,
+ 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
+ 112, 102, 103, 104, 105, 106, 107, 108, 109, 110,
+ 111, 112, 108, 109, 110, 111, 112
+};
+
+static const yytype_int16 yycheck[] =
+{
+ 7, 1, 148, 10, 4, 16, 21, 17, 76, 155,
+ 20, 21, 22, 81, 24, 25, 26, 27, 28, 29,
+ 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 17, 45, 46, 47, 48, 49,
+ 50, 51, 52, 53, 54, 55, 56, 19, 20, 56,
+ 61, 62, 63, 64, 65, 37, 38, 39, 40, 41,
+ 42, 43, 45, 70, 41, 42, 43, 39, 40, 76,
+ 19, 20, 17, 45, 81, 47, 48, 17, 46, 17,
+ 21, 49, 82, 83, 95, 96, 97, 98, 99, 100,
+ 101, 102, 103, 104, 105, 106, 107, 108, 109, 110,
+ 111, 112, 17, 17, 17, 21, 46, 46, 45, 116,
+ 21, 21, 0, 17, 21, 21, 123, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ 18, 21, 20, 21, 22, 17, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, 4, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ 21, 14, 20, 21, 22, 83, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, 4, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ 10, -1, 20, 21, 22, -1, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, 4, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ -1, -1, 20, 21, 22, -1, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, 4, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ -1, -1, 20, 21, 22, -1, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, -1, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ -1, -1, 20, 21, 22, -1, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, -1, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ -1, -1, 20, 21, 22, -1, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, -1, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 17,
+ -1, -1, 20, -1, 22, -1, 24, 25, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, -1, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 21,
+ -1, -1, -1, -1, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
+ 42, 43, 21, -1, -1, -1, -1, 26, 27, 28,
+ 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
+ 39, 40, 41, 42, 43, 26, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, -1, -1, 46, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 28, 29, 30, 31, 32, 33, 34,
+ 35, 36, 37, 38, 39, 40, 41, 42, 43, 29,
+ 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 30, 31, 32, 33, 34, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43, 31, 32,
+ 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
+ 43, 33, 34, 35, 36, 37, 38, 39, 40, 41,
+ 42, 43, 39, 40, 41, 42, 43
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const yytype_uint8 yystos[] =
+{
+ 0, 58, 0, 5, 6, 7, 8, 9, 10, 11,
+ 12, 13, 14, 15, 16, 17, 18, 20, 21, 22,
+ 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 59, 60, 61, 65, 71, 72, 73, 19,
+ 20, 39, 40, 45, 47, 48, 62, 63, 21, 66,
+ 71, 17, 17, 4, 21, 69, 70, 72, 21, 21,
+ 21, 70, 17, 17, 17, 62, 63, 21, 72, 63,
+ 63, 63, 63, 63, 21, 26, 27, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 21, 45, 67, 71, 17, 45, 21,
+ 69, 21, 68, 71, 68, 21, 21, 21, 46, 63,
+ 63, 63, 63, 63, 63, 63, 63, 63, 63, 63,
+ 63, 63, 63, 63, 63, 63, 63, 17, 46, 64,
+ 21, 17, 21, 21, 67, 46, 49, 46, 21, 67,
+ 17, 21
+};
+
+#define yyerrok (yyerrstatus = 0)
+#define yyclearin (yychar = YYEMPTY)
+#define YYEMPTY (-2)
+#define YYEOF 0
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
+ Once GCC version 2 has supplanted version 1, this can go. However,
+ YYFAIL appears to be in use. Nevertheless, it is formally deprecated
+ in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+ discussed. */
+
+#define YYFAIL goto yyerrlab
+#if defined YYFAIL
+ /* This is here to suppress warnings from the GCC cpp's
+ -Wunused-macros. Normally we don't worry about that warning, but
+ some users do, and we want to make it easy for users to remove
+ YYFAIL uses, which will produce warnings from Bison 2.5. */
+#endif
+
+#define YYRECOVERING() (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY && yylen == 1) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
+ goto yybackup; \
+ } \
+ else \
+ { \
+ yyerror (&yylloc, parser, YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
+
+#define YYTERROR 1
+#define YYERRCODE 256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+#ifndef YY_LOCATION_PRINT
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval, &yylloc, parser)
+#endif
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value, Location, parser); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp, glcpp_parser_t *parser)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp, parser)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ YYLTYPE const * const yylocationp;
+ glcpp_parser_t *parser;
+#endif
+{
+ if (!yyvaluep)
+ return;
+ YYUSE (yylocationp);
+ YYUSE (parser);
+# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+ default:
+ break;
+ }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp, glcpp_parser_t *parser)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp, parser)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ YYLTYPE const * const yylocationp;
+ glcpp_parser_t *parser;
+#endif
+{
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+ YY_LOCATION_PRINT (yyoutput, *yylocationp);
+ YYFPRINTF (yyoutput, ": ");
+ yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp, parser);
+ YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
+#else
+static void
+yy_stack_print (yybottom, yytop)
+ yytype_int16 *yybottom;
+ yytype_int16 *yytop;
+#endif
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; yybottom <= yytop; yybottom++)
+ {
+ int yybot = *yybottom;
+ YYFPRINTF (stderr, " %d", yybot);
+ }
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule, glcpp_parser_t *parser)
+#else
+static void
+yy_reduce_print (yyvsp, yylsp, yyrule, parser)
+ YYSTYPE *yyvsp;
+ YYLTYPE *yylsp;
+ int yyrule;
+ glcpp_parser_t *parser;
+#endif
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ YYFPRINTF (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &(yyvsp[(yyi + 1) - (yynrhs)])
+ , &(yylsp[(yyi + 1) - (yynrhs)]) , parser);
+ YYFPRINTF (stderr, "\n");
+ }
+}
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, yylsp, Rule, parser); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+ const char *yystr;
+#endif
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+ char *yydest;
+ const char *yysrc;
+#endif
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
+ {
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ constructed on the fly. */
+ YY_("syntax error, unexpected %s");
+ YY_("syntax error, unexpected %s, expecting %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ if (yyresult)
+ {
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ char *yyp = yyresult;
+ int yyi = 0;
+ while ((*yyp = *yyf) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ }
+ return yysize;
+ }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp, glcpp_parser_t *parser)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep, yylocationp, parser)
+ const char *yymsg;
+ int yytype;
+ YYSTYPE *yyvaluep;
+ YYLTYPE *yylocationp;
+ glcpp_parser_t *parser;
+#endif
+{
+ YYUSE (yyvaluep);
+ YYUSE (yylocationp);
+ YYUSE (parser);
+
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+
+ default:
+ break;
+ }
+}
+
+/* Prevent warnings from -Wmissing-prototypes. */
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (glcpp_parser_t *parser);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+
+
+/*-------------------------.
+| yyparse or yypush_parse. |
+`-------------------------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+ void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (glcpp_parser_t *parser)
+#else
+int
+yyparse (parser)
+ glcpp_parser_t *parser;
+#endif
+#endif
+{
+/* The lookahead symbol. */
+int yychar;
+
+/* The semantic value of the lookahead symbol. */
+YYSTYPE yylval;
+
+/* Location data for the lookahead symbol. */
+YYLTYPE yylloc;
+
+ /* Number of syntax errors so far. */
+ int yynerrs;
+
+ int yystate;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+
+ /* The stacks and their tools:
+ `yyss': related to states.
+ `yyvs': related to semantic values.
+ `yyls': related to locations.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs;
+ YYSTYPE *yyvsp;
+
+ /* The location stack. */
+ YYLTYPE yylsa[YYINITDEPTH];
+ YYLTYPE *yyls;
+ YYLTYPE *yylsp;
+
+ /* The locations where the error started and ended. */
+ YYLTYPE yyerror_range[3];
+
+ YYSIZE_T yystacksize;
+
+ int yyn;
+ int yyresult;
+ /* Lookahead token as an internal (translated) token number. */
+ int yytoken;
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+ YYLTYPE yyloc;
+
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ yytoken = 0;
+ yyss = yyssa;
+ yyvs = yyvsa;
+ yyls = yylsa;
+ yystacksize = YYINITDEPTH;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+
+ /* Initialize stack pointers.
+ Waste one element of value and location stack
+ so that they stay on the same level as the state stack.
+ The wasted elements are never initialized. */
+ yyssp = yyss;
+ yyvsp = yyvs;
+ yylsp = yyls;
+
+#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+ /* Initialize the default location before parsing starts. */
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = 1;
+#endif
+
+/* User initialization code. */
+
+/* Line 1251 of yacc.c */
+#line 155 "glcpp/glcpp-parse.y"
+{
+ yylloc.first_line = 1;
+ yylloc.first_column = 1;
+ yylloc.last_line = 1;
+ yylloc.last_column = 1;
+ yylloc.source = 0;
+}
+
+/* Line 1251 of yacc.c */
+#line 1625 "glcpp/glcpp-parse.c"
+ yylsp[0] = yylloc;
+
+ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+ YYLTYPE *yyls1 = yyls;
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+ &yyls1, yysize * sizeof (*yylsp),
+ &yystacksize);
+
+ yyls = yyls1;
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss_alloc, yyss);
+ YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+ YYSTACK_RELOCATE (yyls_alloc, yyls);
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+ yylsp = yyls + yysize - 1;
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ YYABORT;
+ }
+
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+ if (yystate == YYFINAL)
+ YYACCEPT;
+
+ goto yybackup;
+
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
+
+ /* Do appropriate processing given the current state. Read a
+ lookahead token if we need one and don't already have one. */
+
+ /* First try to decide what to do without reference to lookahead token. */
+ yyn = yypact[yystate];
+ if (yyn == YYPACT_NINF)
+ goto yydefault;
+
+ /* Not known => get a lookahead token if don't already have one. */
+
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ }
+
+ if (yychar <= YYEOF)
+ {
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
+ }
+ else
+ {
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+ goto yydefault;
+ yyn = yytable[yyn];
+ if (yyn <= 0)
+ {
+ if (yyn == 0 || yyn == YYTABLE_NINF)
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
+
+ /* Shift the lookahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token. */
+ yychar = YYEMPTY;
+
+ yystate = yyn;
+ *++yyvsp = yylval;
+ *++yylsp = yylloc;
+ goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
+ yyn = yydefact[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
+yyreduce:
+ /* yyn is the number of a rule to reduce with. */
+ yylen = yyr2[yyn];
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
+
+ /* Default location. */
+ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ case 4:
+
+/* Line 1464 of yacc.c */
+#line 194 "glcpp/glcpp-parse.y"
+ {
+ glcpp_print(parser->output, "\n");
+ ;}
+ break;
+
+ case 5:
+
+/* Line 1464 of yacc.c */
+#line 197 "glcpp/glcpp-parse.y"
+ {
+ _glcpp_parser_print_expanded_token_list (parser, (yyvsp[(1) - (1)].token_list));
+ glcpp_print(parser->output, "\n");
+ talloc_free ((yyvsp[(1) - (1)].token_list));
+ ;}
+ break;
+
+ case 8:
+
+/* Line 1464 of yacc.c */
+#line 207 "glcpp/glcpp-parse.y"
+ {
+ _glcpp_parser_skip_stack_push_if (parser, & (yylsp[(1) - (3)]), (yyvsp[(2) - (3)].ival));
+ ;}
+ break;
+
+ case 9:
+
+/* Line 1464 of yacc.c */
+#line 210 "glcpp/glcpp-parse.y"
+ {
+ _glcpp_parser_skip_stack_change_if (parser, & (yylsp[(1) - (3)]), "elif", (yyvsp[(2) - (3)].ival));
+ ;}
+ break;
+
+ case 10:
+
+/* Line 1464 of yacc.c */
+#line 216 "glcpp/glcpp-parse.y"
+ {
+ _define_object_macro (parser, & (yylsp[(2) - (4)]), (yyvsp[(2) - (4)].str), (yyvsp[(3) - (4)].token_list));
+ ;}
+ break;
+
+ case 11:
+
+/* Line 1464 of yacc.c */
+#line 219 "glcpp/glcpp-parse.y"
+ {
+ _define_function_macro (parser, & (yylsp[(2) - (6)]), (yyvsp[(2) - (6)].str), NULL, (yyvsp[(5) - (6)].token_list));
+ ;}
+ break;
+
+ case 12:
+
+/* Line 1464 of yacc.c */
+#line 222 "glcpp/glcpp-parse.y"
+ {
+ _define_function_macro (parser, & (yylsp[(2) - (7)]), (yyvsp[(2) - (7)].str), (yyvsp[(4) - (7)].string_list), (yyvsp[(6) - (7)].token_list));
+ ;}
+ break;
+
+ case 13:
+
+/* Line 1464 of yacc.c */
+#line 225 "glcpp/glcpp-parse.y"
+ {
+ macro_t *macro = hash_table_find (parser->defines, (yyvsp[(2) - (3)].str));
+ if (macro) {
+ hash_table_remove (parser->defines, (yyvsp[(2) - (3)].str));
+ talloc_free (macro);
+ }
+ talloc_free ((yyvsp[(2) - (3)].str));
+ ;}
+ break;
+
+ case 14:
+
+/* Line 1464 of yacc.c */
+#line 233 "glcpp/glcpp-parse.y"
+ {
+ /* Be careful to only evaluate the 'if' expression if
+ * we are not skipping. When we are skipping, we
+ * simply push a new 0-valued 'if' onto the skip
+ * stack.
+ *
+ * This avoids generating diagnostics for invalid
+ * expressions that are being skipped. */
+ if (parser->skip_stack == NULL ||
+ parser->skip_stack->type == SKIP_NO_SKIP)
+ {
+ _glcpp_parser_expand_if (parser, IF_EXPANDED, (yyvsp[(2) - (3)].token_list));
+ }
+ else
+ {
+ _glcpp_parser_skip_stack_push_if (parser, & (yylsp[(1) - (3)]), 0);
+ parser->skip_stack->type = SKIP_TO_ENDIF;
+ }
+ ;}
+ break;
+
+ case 15:
+
+/* Line 1464 of yacc.c */
+#line 252 "glcpp/glcpp-parse.y"
+ {
+ /* #if without an expression is only an error if we
+ * are not skipping */
+ if (parser->skip_stack == NULL ||
+ parser->skip_stack->type == SKIP_NO_SKIP)
+ {
+ glcpp_error(& (yylsp[(1) - (2)]), parser, "#if with no expression");
+ }
+ _glcpp_parser_skip_stack_push_if (parser, & (yylsp[(1) - (2)]), 0);
+ ;}
+ break;
+
+ case 16:
+
+/* Line 1464 of yacc.c */
+#line 262 "glcpp/glcpp-parse.y"
+ {
+ macro_t *macro = hash_table_find (parser->defines, (yyvsp[(2) - (4)].str));
+ talloc_free ((yyvsp[(2) - (4)].str));
+ _glcpp_parser_skip_stack_push_if (parser, & (yylsp[(1) - (4)]), macro != NULL);
+ ;}
+ break;
+
+ case 17:
+
+/* Line 1464 of yacc.c */
+#line 267 "glcpp/glcpp-parse.y"
+ {
+ macro_t *macro = hash_table_find (parser->defines, (yyvsp[(2) - (4)].str));
+ talloc_free ((yyvsp[(2) - (4)].str));
+ _glcpp_parser_skip_stack_push_if (parser, & (yylsp[(1) - (4)]), macro == NULL);
+ ;}
+ break;
+
+ case 18:
+
+/* Line 1464 of yacc.c */
+#line 272 "glcpp/glcpp-parse.y"
+ {
+ /* Be careful to only evaluate the 'elif' expression
+ * if we are not skipping. When we are skipping, we
+ * simply change to a 0-valued 'elif' on the skip
+ * stack.
+ *
+ * This avoids generating diagnostics for invalid
+ * expressions that are being skipped. */
+ if (parser->skip_stack &&
+ parser->skip_stack->type == SKIP_TO_ELSE)
+ {
+ _glcpp_parser_expand_if (parser, ELIF_EXPANDED, (yyvsp[(2) - (3)].token_list));
+ }
+ else
+ {
+ _glcpp_parser_skip_stack_change_if (parser, & (yylsp[(1) - (3)]),
+ "elif", 0);
+ }
+ ;}
+ break;
+
+ case 19:
+
+/* Line 1464 of yacc.c */
+#line 291 "glcpp/glcpp-parse.y"
+ {
+ /* #elif without an expression is an error unless we
+ * are skipping. */
+ if (parser->skip_stack &&
+ parser->skip_stack->type == SKIP_TO_ELSE)
+ {
+ glcpp_error(& (yylsp[(1) - (2)]), parser, "#elif with no expression");
+ }
+ else
+ {
+ _glcpp_parser_skip_stack_change_if (parser, & (yylsp[(1) - (2)]),
+ "elif", 0);
+ glcpp_warning(& (yylsp[(1) - (2)]), parser, "ignoring illegal #elif without expression");
+ }
+ ;}
+ break;
+
+ case 20:
+
+/* Line 1464 of yacc.c */
+#line 306 "glcpp/glcpp-parse.y"
+ {
+ _glcpp_parser_skip_stack_change_if (parser, & (yylsp[(1) - (2)]), "else", 1);
+ ;}
+ break;
+
+ case 21:
+
+/* Line 1464 of yacc.c */
+#line 309 "glcpp/glcpp-parse.y"
+ {
+ _glcpp_parser_skip_stack_pop (parser, & (yylsp[(1) - (2)]));
+ ;}
+ break;
+
+ case 22:
+
+/* Line 1464 of yacc.c */
+#line 312 "glcpp/glcpp-parse.y"
+ {
+ macro_t *macro = hash_table_find (parser->defines, "__VERSION__");
+ if (macro) {
+ hash_table_remove (parser->defines, "__VERSION__");
+ talloc_free (macro);
+ }
+ add_builtin_define (parser, "__VERSION__", (yyvsp[(2) - (3)].ival));
+
+ if ((yyvsp[(2) - (3)].ival) == 100)
+ add_builtin_define (parser, "GL_ES", 1);
+
+ glcpp_printf(parser->output, "#version %" PRIiMAX, (yyvsp[(2) - (3)].ival));
+ ;}
+ break;
+
+ case 24:
+
+/* Line 1464 of yacc.c */
+#line 329 "glcpp/glcpp-parse.y"
+ {
+ if (strlen ((yyvsp[(1) - (1)].str)) >= 3 && strncmp ((yyvsp[(1) - (1)].str), "0x", 2) == 0) {
+ (yyval.ival) = strtoll ((yyvsp[(1) - (1)].str) + 2, NULL, 16);
+ } else if ((yyvsp[(1) - (1)].str)[0] == '0') {
+ (yyval.ival) = strtoll ((yyvsp[(1) - (1)].str), NULL, 8);
+ } else {
+ (yyval.ival) = strtoll ((yyvsp[(1) - (1)].str), NULL, 10);
+ }
+ ;}
+ break;
+
+ case 25:
+
+/* Line 1464 of yacc.c */
+#line 338 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (1)].ival);
+ ;}
+ break;
+
+ case 27:
+
+/* Line 1464 of yacc.c */
+#line 344 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) || (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 28:
+
+/* Line 1464 of yacc.c */
+#line 347 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) && (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 29:
+
+/* Line 1464 of yacc.c */
+#line 350 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) | (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 30:
+
+/* Line 1464 of yacc.c */
+#line 353 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) ^ (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 31:
+
+/* Line 1464 of yacc.c */
+#line 356 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) & (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 32:
+
+/* Line 1464 of yacc.c */
+#line 359 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) != (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 33:
+
+/* Line 1464 of yacc.c */
+#line 362 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) == (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 34:
+
+/* Line 1464 of yacc.c */
+#line 365 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) >= (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 35:
+
+/* Line 1464 of yacc.c */
+#line 368 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) <= (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 36:
+
+/* Line 1464 of yacc.c */
+#line 371 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) > (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 37:
+
+/* Line 1464 of yacc.c */
+#line 374 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) < (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 38:
+
+/* Line 1464 of yacc.c */
+#line 377 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) >> (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 39:
+
+/* Line 1464 of yacc.c */
+#line 380 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) << (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 40:
+
+/* Line 1464 of yacc.c */
+#line 383 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) - (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 41:
+
+/* Line 1464 of yacc.c */
+#line 386 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) + (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 42:
+
+/* Line 1464 of yacc.c */
+#line 389 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) % (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 43:
+
+/* Line 1464 of yacc.c */
+#line 392 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) / (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 44:
+
+/* Line 1464 of yacc.c */
+#line 395 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(1) - (3)].ival) * (yyvsp[(3) - (3)].ival);
+ ;}
+ break;
+
+ case 45:
+
+/* Line 1464 of yacc.c */
+#line 398 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = ! (yyvsp[(2) - (2)].ival);
+ ;}
+ break;
+
+ case 46:
+
+/* Line 1464 of yacc.c */
+#line 401 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = ~ (yyvsp[(2) - (2)].ival);
+ ;}
+ break;
+
+ case 47:
+
+/* Line 1464 of yacc.c */
+#line 404 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = - (yyvsp[(2) - (2)].ival);
+ ;}
+ break;
+
+ case 48:
+
+/* Line 1464 of yacc.c */
+#line 407 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = + (yyvsp[(2) - (2)].ival);
+ ;}
+ break;
+
+ case 49:
+
+/* Line 1464 of yacc.c */
+#line 410 "glcpp/glcpp-parse.y"
+ {
+ (yyval.ival) = (yyvsp[(2) - (3)].ival);
+ ;}
+ break;
+
+ case 50:
+
+/* Line 1464 of yacc.c */
+#line 416 "glcpp/glcpp-parse.y"
+ {
+ (yyval.string_list) = _string_list_create (parser);
+ _string_list_append_item ((yyval.string_list), (yyvsp[(1) - (1)].str));
+ talloc_steal ((yyval.string_list), (yyvsp[(1) - (1)].str));
+ ;}
+ break;
+
+ case 51:
+
+/* Line 1464 of yacc.c */
+#line 421 "glcpp/glcpp-parse.y"
+ {
+ (yyval.string_list) = (yyvsp[(1) - (3)].string_list);
+ _string_list_append_item ((yyval.string_list), (yyvsp[(3) - (3)].str));
+ talloc_steal ((yyval.string_list), (yyvsp[(3) - (3)].str));
+ ;}
+ break;
+
+ case 52:
+
+/* Line 1464 of yacc.c */
+#line 429 "glcpp/glcpp-parse.y"
+ { (yyval.token_list) = NULL; ;}
+ break;
+
+ case 54:
+
+/* Line 1464 of yacc.c */
+#line 434 "glcpp/glcpp-parse.y"
+ {
+ yyerror (& (yylsp[(1) - (2)]), parser, "Invalid tokens after #");
+ ;}
+ break;
+
+ case 55:
+
+/* Line 1464 of yacc.c */
+#line 440 "glcpp/glcpp-parse.y"
+ { (yyval.token_list) = NULL; ;}
+ break;
+
+ case 58:
+
+/* Line 1464 of yacc.c */
+#line 446 "glcpp/glcpp-parse.y"
+ {
+ glcpp_warning(&(yylsp[(1) - (1)]), parser, "extra tokens at end of directive");
+ ;}
+ break;
+
+ case 59:
+
+/* Line 1464 of yacc.c */
+#line 453 "glcpp/glcpp-parse.y"
+ {
+ int v = hash_table_find (parser->defines, (yyvsp[(2) - (2)].str)) ? 1 : 0;
+ (yyval.token) = _token_create_ival (parser, INTEGER, v);
+ ;}
+ break;
+
+ case 60:
+
+/* Line 1464 of yacc.c */
+#line 457 "glcpp/glcpp-parse.y"
+ {
+ int v = hash_table_find (parser->defines, (yyvsp[(3) - (4)].str)) ? 1 : 0;
+ (yyval.token) = _token_create_ival (parser, INTEGER, v);
+ ;}
+ break;
+
+ case 62:
+
+/* Line 1464 of yacc.c */
+#line 466 "glcpp/glcpp-parse.y"
+ {
+ parser->space_tokens = 1;
+ (yyval.token_list) = _token_list_create (parser);
+ _token_list_append ((yyval.token_list), (yyvsp[(1) - (1)].token));
+ talloc_unlink (parser, (yyvsp[(1) - (1)].token));
+ ;}
+ break;
+
+ case 63:
+
+/* Line 1464 of yacc.c */
+#line 472 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token_list) = (yyvsp[(1) - (2)].token_list);
+ _token_list_append ((yyval.token_list), (yyvsp[(2) - (2)].token));
+ talloc_unlink (parser, (yyvsp[(2) - (2)].token));
+ ;}
+ break;
+
+ case 64:
+
+/* Line 1464 of yacc.c */
+#line 480 "glcpp/glcpp-parse.y"
+ {
+ parser->space_tokens = 1;
+ (yyval.token_list) = _token_list_create (parser);
+ _token_list_append ((yyval.token_list), (yyvsp[(1) - (1)].token));
+ talloc_unlink (parser, (yyvsp[(1) - (1)].token));
+ ;}
+ break;
+
+ case 65:
+
+/* Line 1464 of yacc.c */
+#line 486 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token_list) = (yyvsp[(1) - (2)].token_list);
+ _token_list_append ((yyval.token_list), (yyvsp[(2) - (2)].token));
+ talloc_unlink (parser, (yyvsp[(2) - (2)].token));
+ ;}
+ break;
+
+ case 66:
+
+/* Line 1464 of yacc.c */
+#line 494 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token) = _token_create_str (parser, IDENTIFIER, (yyvsp[(1) - (1)].str));
+ (yyval.token)->location = yylloc;
+ ;}
+ break;
+
+ case 67:
+
+/* Line 1464 of yacc.c */
+#line 498 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token) = _token_create_str (parser, INTEGER_STRING, (yyvsp[(1) - (1)].str));
+ (yyval.token)->location = yylloc;
+ ;}
+ break;
+
+ case 68:
+
+/* Line 1464 of yacc.c */
+#line 502 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token) = _token_create_ival (parser, (yyvsp[(1) - (1)].ival), (yyvsp[(1) - (1)].ival));
+ (yyval.token)->location = yylloc;
+ ;}
+ break;
+
+ case 69:
+
+/* Line 1464 of yacc.c */
+#line 506 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token) = _token_create_str (parser, OTHER, (yyvsp[(1) - (1)].str));
+ (yyval.token)->location = yylloc;
+ ;}
+ break;
+
+ case 70:
+
+/* Line 1464 of yacc.c */
+#line 510 "glcpp/glcpp-parse.y"
+ {
+ (yyval.token) = _token_create_ival (parser, SPACE, SPACE);
+ (yyval.token)->location = yylloc;
+ ;}
+ break;
+
+ case 71:
+
+/* Line 1464 of yacc.c */
+#line 517 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '['; ;}
+ break;
+
+ case 72:
+
+/* Line 1464 of yacc.c */
+#line 518 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = ']'; ;}
+ break;
+
+ case 73:
+
+/* Line 1464 of yacc.c */
+#line 519 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '('; ;}
+ break;
+
+ case 74:
+
+/* Line 1464 of yacc.c */
+#line 520 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = ')'; ;}
+ break;
+
+ case 75:
+
+/* Line 1464 of yacc.c */
+#line 521 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '{'; ;}
+ break;
+
+ case 76:
+
+/* Line 1464 of yacc.c */
+#line 522 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '}'; ;}
+ break;
+
+ case 77:
+
+/* Line 1464 of yacc.c */
+#line 523 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '.'; ;}
+ break;
+
+ case 78:
+
+/* Line 1464 of yacc.c */
+#line 524 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '&'; ;}
+ break;
+
+ case 79:
+
+/* Line 1464 of yacc.c */
+#line 525 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '*'; ;}
+ break;
+
+ case 80:
+
+/* Line 1464 of yacc.c */
+#line 526 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '+'; ;}
+ break;
+
+ case 81:
+
+/* Line 1464 of yacc.c */
+#line 527 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '-'; ;}
+ break;
+
+ case 82:
+
+/* Line 1464 of yacc.c */
+#line 528 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '~'; ;}
+ break;
+
+ case 83:
+
+/* Line 1464 of yacc.c */
+#line 529 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '!'; ;}
+ break;
+
+ case 84:
+
+/* Line 1464 of yacc.c */
+#line 530 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '/'; ;}
+ break;
+
+ case 85:
+
+/* Line 1464 of yacc.c */
+#line 531 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '%'; ;}
+ break;
+
+ case 86:
+
+/* Line 1464 of yacc.c */
+#line 532 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = LEFT_SHIFT; ;}
+ break;
+
+ case 87:
+
+/* Line 1464 of yacc.c */
+#line 533 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = RIGHT_SHIFT; ;}
+ break;
+
+ case 88:
+
+/* Line 1464 of yacc.c */
+#line 534 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '<'; ;}
+ break;
+
+ case 89:
+
+/* Line 1464 of yacc.c */
+#line 535 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '>'; ;}
+ break;
+
+ case 90:
+
+/* Line 1464 of yacc.c */
+#line 536 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = LESS_OR_EQUAL; ;}
+ break;
+
+ case 91:
+
+/* Line 1464 of yacc.c */
+#line 537 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = GREATER_OR_EQUAL; ;}
+ break;
+
+ case 92:
+
+/* Line 1464 of yacc.c */
+#line 538 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = EQUAL; ;}
+ break;
+
+ case 93:
+
+/* Line 1464 of yacc.c */
+#line 539 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = NOT_EQUAL; ;}
+ break;
+
+ case 94:
+
+/* Line 1464 of yacc.c */
+#line 540 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '^'; ;}
+ break;
+
+ case 95:
+
+/* Line 1464 of yacc.c */
+#line 541 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '|'; ;}
+ break;
+
+ case 96:
+
+/* Line 1464 of yacc.c */
+#line 542 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = AND; ;}
+ break;
+
+ case 97:
+
+/* Line 1464 of yacc.c */
+#line 543 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = OR; ;}
+ break;
+
+ case 98:
+
+/* Line 1464 of yacc.c */
+#line 544 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = ';'; ;}
+ break;
+
+ case 99:
+
+/* Line 1464 of yacc.c */
+#line 545 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = ','; ;}
+ break;
+
+ case 100:
+
+/* Line 1464 of yacc.c */
+#line 546 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = '='; ;}
+ break;
+
+ case 101:
+
+/* Line 1464 of yacc.c */
+#line 547 "glcpp/glcpp-parse.y"
+ { (yyval.ival) = PASTE; ;}
+ break;
+
+
+
+/* Line 1464 of yacc.c */
+#line 2656 "glcpp/glcpp-parse.c"
+ default: break;
+ }
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+ *++yylsp = yyloc;
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
+ else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
+ {
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (&yylloc, parser, YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (&yylloc, parser, yymsg);
+ }
+ else
+ {
+ yyerror (&yylloc, parser, YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
+ }
+
+ yyerror_range[1] = yylloc;
+
+ if (yyerrstatus == 3)
+ {
+ /* If just tried and failed to reuse lookahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval, &yylloc, parser);
+ yychar = YYEMPTY;
+ }
+ }
+
+ /* Else will try to reuse lookahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
+
+ yyerror_range[1] = yylsp[1-yylen];
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact[yystate];
+ if (yyn != YYPACT_NINF)
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+ yyerror_range[1] = *yylsp;
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp, yylsp, parser);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
+ }
+
+ *++yyvsp = yylval;
+
+ yyerror_range[2] = yylloc;
+ /* Using YYLLOC is tempting, but would change the location of
+ the lookahead. YYLOC is available though. */
+ YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
+ *++yylsp = yyloc;
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+ yystate = yyn;
+ goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#if !defined(yyoverflow) || YYERROR_VERBOSE
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (&yylloc, parser, YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval, &yylloc, parser);
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
+ {
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp, yylsp, parser);
+ YYPOPSTACK (1);
+ }
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+
+/* Line 1684 of yacc.c */
+#line 550 "glcpp/glcpp-parse.y"
+
+
+string_list_t *
+_string_list_create (void *ctx)
+{
+ string_list_t *list;
+
+ list = talloc (ctx, string_list_t);
+ list->head = NULL;
+ list->tail = NULL;
+
+ return list;
+}
+
+void
+_string_list_append_item (string_list_t *list, const char *str)
+{
+ string_node_t *node;
+
+ node = talloc (list, string_node_t);
+ node->str = talloc_strdup (node, str);
+
+ node->next = NULL;
+
+ if (list->head == NULL) {
+ list->head = node;
+ } else {
+ list->tail->next = node;
+ }
+
+ list->tail = node;
+}
+
+int
+_string_list_contains (string_list_t *list, const char *member, int *index)
+{
+ string_node_t *node;
+ int i;
+
+ if (list == NULL)
+ return 0;
+
+ for (i = 0, node = list->head; node; i++, node = node->next) {
+ if (strcmp (node->str, member) == 0) {
+ if (index)
+ *index = i;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+int
+_string_list_length (string_list_t *list)
+{
+ int length = 0;
+ string_node_t *node;
+
+ if (list == NULL)
+ return 0;
+
+ for (node = list->head; node; node = node->next)
+ length++;
+
+ return length;
+}
+
+int
+_string_list_equal (string_list_t *a, string_list_t *b)
+{
+ string_node_t *node_a, *node_b;
+
+ if (a == NULL && b == NULL)
+ return 1;
+
+ if (a == NULL || b == NULL)
+ return 0;
+
+ for (node_a = a->head, node_b = b->head;
+ node_a && node_b;
+ node_a = node_a->next, node_b = node_b->next)
+ {
+ if (strcmp (node_a->str, node_b->str))
+ return 0;
+ }
+
+ /* Catch the case of lists being different lengths, (which
+ * would cause the loop above to terminate after the shorter
+ * list). */
+ return node_a == node_b;
+}
+
+argument_list_t *
+_argument_list_create (void *ctx)
+{
+ argument_list_t *list;
+
+ list = talloc (ctx, argument_list_t);
+ list->head = NULL;
+ list->tail = NULL;
+
+ return list;
+}
+
+void
+_argument_list_append (argument_list_t *list, token_list_t *argument)
+{
+ argument_node_t *node;
+
+ node = talloc (list, argument_node_t);
+ node->argument = argument;
+
+ node->next = NULL;
+
+ if (list->head == NULL) {
+ list->head = node;
+ } else {
+ list->tail->next = node;
+ }
+
+ list->tail = node;
+}
+
+int
+_argument_list_length (argument_list_t *list)
+{
+ int length = 0;
+ argument_node_t *node;
+
+ if (list == NULL)
+ return 0;
+
+ for (node = list->head; node; node = node->next)
+ length++;
+
+ return length;
+}
+
+token_list_t *
+_argument_list_member_at (argument_list_t *list, int index)
+{
+ argument_node_t *node;
+ int i;
+
+ if (list == NULL)
+ return NULL;
+
+ node = list->head;
+ for (i = 0; i < index; i++) {
+ node = node->next;
+ if (node == NULL)
+ break;
+ }
+
+ if (node)
+ return node->argument;
+
+ return NULL;
+}
+
+/* Note: This function talloc_steal()s the str pointer. */
+token_t *
+_token_create_str (void *ctx, int type, char *str)
+{
+ token_t *token;
+
+ token = talloc (ctx, token_t);
+ token->type = type;
+ token->value.str = talloc_steal (token, str);
+
+ return token;
+}
+
+token_t *
+_token_create_ival (void *ctx, int type, int ival)
+{
+ token_t *token;
+
+ token = talloc (ctx, token_t);
+ token->type = type;
+ token->value.ival = ival;
+
+ return token;
+}
+
+token_list_t *
+_token_list_create (void *ctx)
+{
+ token_list_t *list;
+
+ list = talloc (ctx, token_list_t);
+ list->head = NULL;
+ list->tail = NULL;
+ list->non_space_tail = NULL;
+
+ return list;
+}
+
+void
+_token_list_append (token_list_t *list, token_t *token)
+{
+ token_node_t *node;
+
+ node = talloc (list, token_node_t);
+ node->token = talloc_reference (list, token);
+
+ node->next = NULL;
+
+ if (list->head == NULL) {
+ list->head = node;
+ } else {
+ list->tail->next = node;
+ }
+
+ list->tail = node;
+ if (token->type != SPACE)
+ list->non_space_tail = node;
+}
+
+void
+_token_list_append_list (token_list_t *list, token_list_t *tail)
+{
+ if (tail == NULL || tail->head == NULL)
+ return;
+
+ if (list->head == NULL) {
+ list->head = tail->head;
+ } else {
+ list->tail->next = tail->head;
+ }
+
+ list->tail = tail->tail;
+ list->non_space_tail = tail->non_space_tail;
+}
+
+static token_list_t *
+_token_list_copy (void *ctx, token_list_t *other)
+{
+ token_list_t *copy;
+ token_node_t *node;
+
+ if (other == NULL)
+ return NULL;
+
+ copy = _token_list_create (ctx);
+ for (node = other->head; node; node = node->next)
+ _token_list_append (copy, node->token);
+
+ return copy;
+}
+
+static void
+_token_list_trim_trailing_space (token_list_t *list)
+{
+ token_node_t *tail, *next;
+
+ if (list->non_space_tail) {
+ tail = list->non_space_tail->next;
+ list->non_space_tail->next = NULL;
+ list->tail = list->non_space_tail;
+
+ while (tail) {
+ next = tail->next;
+ talloc_free (tail);
+ tail = next;
+ }
+ }
+}
+
+int
+_token_list_equal_ignoring_space (token_list_t *a, token_list_t *b)
+{
+ token_node_t *node_a, *node_b;
+
+ node_a = a->head;
+ node_b = b->head;
+
+ while (1)
+ {
+ if (node_a == NULL && node_b == NULL)
+ break;
+
+ if (node_a == NULL || node_b == NULL)
+ return 0;
+
+ if (node_a->token->type == SPACE) {
+ node_a = node_a->next;
+ continue;
+ }
+
+ if (node_b->token->type == SPACE) {
+ node_b = node_b->next;
+ continue;
+ }
+
+ if (node_a->token->type != node_b->token->type)
+ return 0;
+
+ switch (node_a->token->type) {
+ case INTEGER:
+ if (node_a->token->value.ival !=
+ node_b->token->value.ival)
+ {
+ return 0;
+ }
+ break;
+ case IDENTIFIER:
+ case INTEGER_STRING:
+ case OTHER:
+ if (strcmp (node_a->token->value.str,
+ node_b->token->value.str))
+ {
+ return 0;
+ }
+ break;
+ }
+
+ node_a = node_a->next;
+ node_b = node_b->next;
+ }
+
+ return 1;
+}
+
+static void
+_token_print (char **out, token_t *token)
+{
+ if (token->type < 256) {
+ glcpp_printf (*out, "%c", token->type);
+ return;
+ }
+
+ switch (token->type) {
+ case INTEGER:
+ glcpp_printf (*out, "%" PRIiMAX, token->value.ival);
+ break;
+ case IDENTIFIER:
+ case INTEGER_STRING:
+ case OTHER:
+ glcpp_print (*out, token->value.str);
+ break;
+ case SPACE:
+ glcpp_print (*out, " ");
+ break;
+ case LEFT_SHIFT:
+ glcpp_print (*out, "<<");
+ break;
+ case RIGHT_SHIFT:
+ glcpp_print (*out, ">>");
+ break;
+ case LESS_OR_EQUAL:
+ glcpp_print (*out, "<=");
+ break;
+ case GREATER_OR_EQUAL:
+ glcpp_print (*out, ">=");
+ break;
+ case EQUAL:
+ glcpp_print (*out, "==");
+ break;
+ case NOT_EQUAL:
+ glcpp_print (*out, "!=");
+ break;
+ case AND:
+ glcpp_print (*out, "&&");
+ break;
+ case OR:
+ glcpp_print (*out, "||");
+ break;
+ case PASTE:
+ glcpp_print (*out, "##");
+ break;
+ case COMMA_FINAL:
+ glcpp_print (*out, ",");
+ break;
+ case PLACEHOLDER:
+ /* Nothing to print. */
+ break;
+ default:
+ assert(!"Error: Don't know how to print token.");
+ break;
+ }
+}
+
+/* Return a new token (talloc()ed off of 'token') formed by pasting
+ * 'token' and 'other'. Note that this function may return 'token' or
+ * 'other' directly rather than allocating anything new.
+ *
+ * Caution: Only very cursory error-checking is performed to see if
+ * the final result is a valid single token. */
+static token_t *
+_token_paste (glcpp_parser_t *parser, token_t *token, token_t *other)
+{
+ token_t *combined = NULL;
+
+ /* Pasting a placeholder onto anything makes no change. */
+ if (other->type == PLACEHOLDER)
+ return token;
+
+ /* When 'token' is a placeholder, just return 'other'. */
+ if (token->type == PLACEHOLDER)
+ return other;
+
+ /* A very few single-character punctuators can be combined
+ * with another to form a multi-character punctuator. */
+ switch (token->type) {
+ case '<':
+ if (other->type == '<')
+ combined = _token_create_ival (token, LEFT_SHIFT, LEFT_SHIFT);
+ else if (other->type == '=')
+ combined = _token_create_ival (token, LESS_OR_EQUAL, LESS_OR_EQUAL);
+ break;
+ case '>':
+ if (other->type == '>')
+ combined = _token_create_ival (token, RIGHT_SHIFT, RIGHT_SHIFT);
+ else if (other->type == '=')
+ combined = _token_create_ival (token, GREATER_OR_EQUAL, GREATER_OR_EQUAL);
+ break;
+ case '=':
+ if (other->type == '=')
+ combined = _token_create_ival (token, EQUAL, EQUAL);
+ break;
+ case '!':
+ if (other->type == '=')
+ combined = _token_create_ival (token, NOT_EQUAL, NOT_EQUAL);
+ break;
+ case '&':
+ if (other->type == '&')
+ combined = _token_create_ival (token, AND, AND);
+ break;
+ case '|':
+ if (other->type == '|')
+ combined = _token_create_ival (token, OR, OR);
+ break;
+ }
+
+ if (combined != NULL) {
+ /* Inherit the location from the first token */
+ combined->location = token->location;
+ return combined;
+ }
+
+ /* Two string-valued tokens can usually just be mashed
+ * together.
+ *
+ * XXX: This isn't actually legitimate. Several things here
+ * should result in a diagnostic since the result cannot be a
+ * valid, single pre-processing token. For example, pasting
+ * "123" and "abc" is not legal, but we don't catch that
+ * here. */
+ if ((token->type == IDENTIFIER || token->type == OTHER || token->type == INTEGER_STRING) &&
+ (other->type == IDENTIFIER || other->type == OTHER || other->type == INTEGER_STRING))
+ {
+ char *str;
+
+ str = talloc_asprintf (token, "%s%s", token->value.str,
+ other->value.str);
+ combined = _token_create_str (token, token->type, str);
+ combined->location = token->location;
+ return combined;
+ }
+
+ glcpp_error (&token->location, parser, "");
+ glcpp_print (parser->info_log, "Pasting \"");
+ _token_print (&parser->info_log, token);
+ glcpp_print (parser->info_log, "\" and \"");
+ _token_print (&parser->info_log, other);
+ glcpp_print (parser->info_log, "\" does not give a valid preprocessing token.\n");
+
+ return token;
+}
+
+static void
+_token_list_print (glcpp_parser_t *parser, token_list_t *list)
+{
+ token_node_t *node;
+
+ if (list == NULL)
+ return;
+
+ for (node = list->head; node; node = node->next)
+ _token_print (&parser->output, node->token);
+}
+
+void
+yyerror (YYLTYPE *locp, glcpp_parser_t *parser, const char *error)
+{
+ glcpp_error(locp, parser, "%s", error);
+}
+
+static void add_builtin_define(glcpp_parser_t *parser,
+ const char *name, int value)
+{
+ token_t *tok;
+ token_list_t *list;
+
+ tok = _token_create_ival (parser, INTEGER, value);
+
+ list = _token_list_create(parser);
+ _token_list_append(list, tok);
+ _define_object_macro(parser, NULL, name, list);
+
+ talloc_unlink(parser, tok);
+}
+
+glcpp_parser_t *
+glcpp_parser_create (const struct gl_extensions *extensions, int api)
+{
+ glcpp_parser_t *parser;
+ int language_version;
+
+ parser = talloc (NULL, glcpp_parser_t);
+
+ glcpp_lex_init_extra (parser, &parser->scanner);
+ parser->defines = hash_table_ctor (32, hash_table_string_hash,
+ hash_table_string_compare);
+ parser->active = NULL;
+ parser->lexing_if = 0;
+ parser->space_tokens = 1;
+ parser->newline_as_space = 0;
+ parser->in_control_line = 0;
+ parser->paren_count = 0;
+
+ parser->skip_stack = NULL;
+
+ parser->lex_from_list = NULL;
+ parser->lex_from_node = NULL;
+
+ parser->output = talloc_strdup(parser, "");
+ parser->info_log = talloc_strdup(parser, "");
+ parser->error = 0;
+
+ /* Add pre-defined macros. */
+ add_builtin_define(parser, "GL_ARB_draw_buffers", 1);
+ add_builtin_define(parser, "GL_ARB_texture_rectangle", 1);
+
+ if (api == API_OPENGLES2)
+ add_builtin_define(parser, "GL_ES", 1);
+
+ if (extensions != NULL) {
+ if (extensions->EXT_texture_array) {
+ add_builtin_define(parser, "GL_EXT_texture_array", 1);
+ }
+
+ if (extensions->ARB_fragment_coord_conventions)
+ add_builtin_define(parser, "GL_ARB_fragment_coord_conventions",
+ 1);
+ }
+
+ language_version = 110;
+ add_builtin_define(parser, "__VERSION__", language_version);
+
+ return parser;
+}
+
+int
+glcpp_parser_parse (glcpp_parser_t *parser)
+{
+ return yyparse (parser);
+}
+
+void
+glcpp_parser_destroy (glcpp_parser_t *parser)
+{
+ glcpp_lex_destroy (parser->scanner);
+ hash_table_dtor (parser->defines);
+ talloc_free (parser);
+}
+
+typedef enum function_status
+{
+ FUNCTION_STATUS_SUCCESS,
+ FUNCTION_NOT_A_FUNCTION,
+ FUNCTION_UNBALANCED_PARENTHESES
+} function_status_t;
+
+/* Find a set of function-like macro arguments by looking for a
+ * balanced set of parentheses.
+ *
+ * When called, 'node' should be the opening-parenthesis token, (or
+ * perhaps preceeding SPACE tokens). Upon successful return *last will
+ * be the last consumed node, (corresponding to the closing right
+ * parenthesis).
+ *
+ * Return values:
+ *
+ * FUNCTION_STATUS_SUCCESS:
+ *
+ * Successfully parsed a set of function arguments.
+ *
+ * FUNCTION_NOT_A_FUNCTION:
+ *
+ * Macro name not followed by a '('. This is not an error, but
+ * simply that the macro name should be treated as a non-macro.
+ *
+ * FUNCTION_UNBALANCED_PARENTHESES
+ *
+ * Macro name is not followed by a balanced set of parentheses.
+ */
+static function_status_t
+_arguments_parse (argument_list_t *arguments,
+ token_node_t *node,
+ token_node_t **last)
+{
+ token_list_t *argument;
+ int paren_count;
+
+ node = node->next;
+
+ /* Ignore whitespace before first parenthesis. */
+ while (node && node->token->type == SPACE)
+ node = node->next;
+
+ if (node == NULL || node->token->type != '(')
+ return FUNCTION_NOT_A_FUNCTION;
+
+ node = node->next;
+
+ argument = _token_list_create (arguments);
+ _argument_list_append (arguments, argument);
+
+ for (paren_count = 1; node; node = node->next) {
+ if (node->token->type == '(')
+ {
+ paren_count++;
+ }
+ else if (node->token->type == ')')
+ {
+ paren_count--;
+ if (paren_count == 0)
+ break;
+ }
+
+ if (node->token->type == ',' &&
+ paren_count == 1)
+ {
+ _token_list_trim_trailing_space (argument);
+ argument = _token_list_create (arguments);
+ _argument_list_append (arguments, argument);
+ }
+ else {
+ if (argument->head == NULL) {
+ /* Don't treat initial whitespace as
+ * part of the arguement. */
+ if (node->token->type == SPACE)
+ continue;
+ }
+ _token_list_append (argument, node->token);
+ }
+ }
+
+ if (paren_count)
+ return FUNCTION_UNBALANCED_PARENTHESES;
+
+ *last = node;
+
+ return FUNCTION_STATUS_SUCCESS;
+}
+
+static token_list_t *
+_token_list_create_with_one_space (void *ctx)
+{
+ token_list_t *list;
+ token_t *space;
+
+ list = _token_list_create (ctx);
+ space = _token_create_ival (list, SPACE, SPACE);
+ _token_list_append (list, space);
+
+ return list;
+}
+
+static void
+_glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list)
+{
+ token_list_t *expanded;
+ token_t *token;
+
+ expanded = _token_list_create (parser);
+ token = _token_create_ival (parser, type, type);
+ _token_list_append (expanded, token);
+ _glcpp_parser_expand_token_list (parser, list);
+ _token_list_append_list (expanded, list);
+ glcpp_parser_lex_from (parser, expanded);
+}
+
+/* This is a helper function that's essentially part of the
+ * implementation of _glcpp_parser_expand_node. It shouldn't be called
+ * except for by that function.
+ *
+ * Returns NULL if node is a simple token with no expansion, (that is,
+ * although 'node' corresponds to an identifier defined as a
+ * function-like macro, it is not followed with a parenthesized
+ * argument list).
+ *
+ * Compute the complete expansion of node (which is a function-like
+ * macro) and subsequent nodes which are arguments.
+ *
+ * Returns the token list that results from the expansion and sets
+ * *last to the last node in the list that was consumed by the
+ * expansion. Specifically, *last will be set as follows: as the
+ * token of the closing right parenthesis.
+ */
+static token_list_t *
+_glcpp_parser_expand_function (glcpp_parser_t *parser,
+ token_node_t *node,
+ token_node_t **last)
+
+{
+ macro_t *macro;
+ const char *identifier;
+ argument_list_t *arguments;
+ function_status_t status;
+ token_list_t *substituted;
+ int parameter_index;
+
+ identifier = node->token->value.str;
+
+ macro = hash_table_find (parser->defines, identifier);
+
+ assert (macro->is_function);
+
+ arguments = _argument_list_create (parser);
+ status = _arguments_parse (arguments, node, last);
+
+ switch (status) {
+ case FUNCTION_STATUS_SUCCESS:
+ break;
+ case FUNCTION_NOT_A_FUNCTION:
+ return NULL;
+ case FUNCTION_UNBALANCED_PARENTHESES:
+ glcpp_error (&node->token->location, parser, "Macro %s call has unbalanced parentheses\n", identifier);
+ return NULL;
+ }
+
+ /* Replace a macro defined as empty with a SPACE token. */
+ if (macro->replacements == NULL) {
+ talloc_free (arguments);
+ return _token_list_create_with_one_space (parser);
+ }
+
+ if (! ((_argument_list_length (arguments) ==
+ _string_list_length (macro->parameters)) ||
+ (_string_list_length (macro->parameters) == 0 &&
+ _argument_list_length (arguments) == 1 &&
+ arguments->head->argument->head == NULL)))
+ {
+ glcpp_error (&node->token->location, parser,
+ "Error: macro %s invoked with %d arguments (expected %d)\n",
+ identifier,
+ _argument_list_length (arguments),
+ _string_list_length (macro->parameters));
+ return NULL;
+ }
+
+ /* Perform argument substitution on the replacement list. */
+ substituted = _token_list_create (arguments);
+
+ for (node = macro->replacements->head; node; node = node->next)
+ {
+ if (node->token->type == IDENTIFIER &&
+ _string_list_contains (macro->parameters,
+ node->token->value.str,
+ &parameter_index))
+ {
+ token_list_t *argument;
+ argument = _argument_list_member_at (arguments,
+ parameter_index);
+ /* Before substituting, we expand the argument
+ * tokens, or append a placeholder token for
+ * an empty argument. */
+ if (argument->head) {
+ token_list_t *expanded_argument;
+ expanded_argument = _token_list_copy (parser,
+ argument);
+ _glcpp_parser_expand_token_list (parser,
+ expanded_argument);
+ _token_list_append_list (substituted,
+ expanded_argument);
+ } else {
+ token_t *new_token;
+
+ new_token = _token_create_ival (substituted,
+ PLACEHOLDER,
+ PLACEHOLDER);
+ _token_list_append (substituted, new_token);
+ }
+ } else {
+ _token_list_append (substituted, node->token);
+ }
+ }
+
+ /* After argument substitution, and before further expansion
+ * below, implement token pasting. */
+
+ _token_list_trim_trailing_space (substituted);
+
+ node = substituted->head;
+ while (node)
+ {
+ token_node_t *next_non_space;
+
+ /* Look ahead for a PASTE token, skipping space. */
+ next_non_space = node->next;
+ while (next_non_space && next_non_space->token->type == SPACE)
+ next_non_space = next_non_space->next;
+
+ if (next_non_space == NULL)
+ break;
+
+ if (next_non_space->token->type != PASTE) {
+ node = next_non_space;
+ continue;
+ }
+
+ /* Now find the next non-space token after the PASTE. */
+ next_non_space = next_non_space->next;
+ while (next_non_space && next_non_space->token->type == SPACE)
+ next_non_space = next_non_space->next;
+
+ if (next_non_space == NULL) {
+ yyerror (&node->token->location, parser, "'##' cannot appear at either end of a macro expansion\n");
+ return NULL;
+ }
+
+ node->token = _token_paste (parser, node->token, next_non_space->token);
+ node->next = next_non_space->next;
+ if (next_non_space == substituted->tail)
+ substituted->tail = node;
+
+ node = node->next;
+ }
+
+ substituted->non_space_tail = substituted->tail;
+
+ return substituted;
+}
+
+/* Compute the complete expansion of node, (and subsequent nodes after
+ * 'node' in the case that 'node' is a function-like macro and
+ * subsequent nodes are arguments).
+ *
+ * Returns NULL if node is a simple token with no expansion.
+ *
+ * Otherwise, returns the token list that results from the expansion
+ * and sets *last to the last node in the list that was consumed by
+ * the expansion. Specifically, *last will be set as follows:
+ *
+ * As 'node' in the case of object-like macro expansion.
+ *
+ * As the token of the closing right parenthesis in the case of
+ * function-like macro expansion.
+ */
+static token_list_t *
+_glcpp_parser_expand_node (glcpp_parser_t *parser,
+ token_node_t *node,
+ token_node_t **last)
+{
+ token_t *token = node->token;
+ const char *identifier;
+ macro_t *macro;
+
+ /* We only expand identifiers */
+ if (token->type != IDENTIFIER) {
+ /* We change any COMMA into a COMMA_FINAL to prevent
+ * it being mistaken for an argument separator
+ * later. */
+ if (token->type == ',') {
+ token->type = COMMA_FINAL;
+ token->value.ival = COMMA_FINAL;
+ }
+
+ return NULL;
+ }
+
+ /* Look up this identifier in the hash table. */
+ identifier = token->value.str;
+ macro = hash_table_find (parser->defines, identifier);
+
+ /* Not a macro, so no expansion needed. */
+ if (macro == NULL)
+ return NULL;
+
+ /* Finally, don't expand this macro if we're already actively
+ * expanding it, (to avoid infinite recursion). */
+ if (_active_list_contains (parser->active, identifier)) {
+ /* We change the token type here from IDENTIFIER to
+ * OTHER to prevent any future expansion of this
+ * unexpanded token. */
+ char *str;
+ token_list_t *expansion;
+ token_t *final;
+
+ str = talloc_strdup (parser, token->value.str);
+ final = _token_create_str (parser, OTHER, str);
+ expansion = _token_list_create (parser);
+ _token_list_append (expansion, final);
+ *last = node;
+ return expansion;
+ }
+
+ if (! macro->is_function)
+ {
+ *last = node;
+
+ /* Replace a macro defined as empty with a SPACE token. */
+ if (macro->replacements == NULL)
+ return _token_list_create_with_one_space (parser);
+
+ return _token_list_copy (parser, macro->replacements);
+ }
+
+ return _glcpp_parser_expand_function (parser, node, last);
+}
+
+/* Push a new identifier onto the active list, returning the new list.
+ *
+ * Here, 'marker' is the token node that appears in the list after the
+ * expansion of 'identifier'. That is, when the list iterator begins
+ * examinging 'marker', then it is time to pop this node from the
+ * active stack.
+ */
+active_list_t *
+_active_list_push (active_list_t *list,
+ const char *identifier,
+ token_node_t *marker)
+{
+ active_list_t *node;
+
+ node = talloc (list, active_list_t);
+ node->identifier = talloc_strdup (node, identifier);
+ node->marker = marker;
+ node->next = list;
+
+ return node;
+}
+
+active_list_t *
+_active_list_pop (active_list_t *list)
+{
+ active_list_t *node = list;
+
+ if (node == NULL)
+ return NULL;
+
+ node = list->next;
+ talloc_free (list);
+
+ return node;
+}
+
+int
+_active_list_contains (active_list_t *list, const char *identifier)
+{
+ active_list_t *node;
+
+ if (list == NULL)
+ return 0;
+
+ for (node = list; node; node = node->next)
+ if (strcmp (node->identifier, identifier) == 0)
+ return 1;
+
+ return 0;
+}
+
+/* Walk over the token list replacing nodes with their expansion.
+ * Whenever nodes are expanded the walking will walk over the new
+ * nodes, continuing to expand as necessary. The results are placed in
+ * 'list' itself;
+ */
+static void
+_glcpp_parser_expand_token_list (glcpp_parser_t *parser,
+ token_list_t *list)
+{
+ token_node_t *node_prev;
+ token_node_t *node, *last = NULL;
+ token_list_t *expansion;
+
+ if (list == NULL)
+ return;
+
+ _token_list_trim_trailing_space (list);
+
+ node_prev = NULL;
+ node = list->head;
+
+ while (node) {
+
+ while (parser->active && parser->active->marker == node)
+ parser->active = _active_list_pop (parser->active);
+
+ /* Find the expansion for node, which will replace all
+ * nodes from node to last, inclusive. */
+ expansion = _glcpp_parser_expand_node (parser, node, &last);
+ if (expansion) {
+ token_node_t *n;
+
+ for (n = node; n != last->next; n = n->next)
+ while (parser->active &&
+ parser->active->marker == n)
+ {
+ parser->active = _active_list_pop (parser->active);
+ }
+
+ parser->active = _active_list_push (parser->active,
+ node->token->value.str,
+ last->next);
+
+ /* Splice expansion into list, supporting a
+ * simple deletion if the expansion is
+ * empty. */
+ if (expansion->head) {
+ if (node_prev)
+ node_prev->next = expansion->head;
+ else
+ list->head = expansion->head;
+ expansion->tail->next = last->next;
+ if (last == list->tail)
+ list->tail = expansion->tail;
+ } else {
+ if (node_prev)
+ node_prev->next = last->next;
+ else
+ list->head = last->next;
+ if (last == list->tail)
+ list->tail = NULL;
+ }
+ } else {
+ node_prev = node;
+ }
+ node = node_prev ? node_prev->next : list->head;
+ }
+
+ while (parser->active)
+ parser->active = _active_list_pop (parser->active);
+
+ list->non_space_tail = list->tail;
+}
+
+void
+_glcpp_parser_print_expanded_token_list (glcpp_parser_t *parser,
+ token_list_t *list)
+{
+ if (list == NULL)
+ return;
+
+ _glcpp_parser_expand_token_list (parser, list);
+
+ _token_list_trim_trailing_space (list);
+
+ _token_list_print (parser, list);
+}
+
+static void
+_check_for_reserved_macro_name (glcpp_parser_t *parser, YYLTYPE *loc,
+ const char *identifier)
+{
+ /* According to the GLSL specification, macro names starting with "__"
+ * or "GL_" are reserved for future use. So, don't allow them.
+ */
+ if (strncmp(identifier, "__", 2) == 0) {
+ glcpp_error (loc, parser, "Macro names starting with \"__\" are reserved.\n");
+ }
+ if (strncmp(identifier, "GL_", 3) == 0) {
+ glcpp_error (loc, parser, "Macro names starting with \"GL_\" are reserved.\n");
+ }
+}
+
+static int
+_macro_equal (macro_t *a, macro_t *b)
+{
+ if (a->is_function != b->is_function)
+ return 0;
+
+ if (a->is_function) {
+ if (! _string_list_equal (a->parameters, b->parameters))
+ return 0;
+ }
+
+ return _token_list_equal_ignoring_space (a->replacements,
+ b->replacements);
+}
+
+void
+_define_object_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *identifier,
+ token_list_t *replacements)
+{
+ macro_t *macro, *previous;
+
+ if (loc != NULL)
+ _check_for_reserved_macro_name(parser, loc, identifier);
+
+ macro = talloc (parser, macro_t);
+
+ macro->is_function = 0;
+ macro->parameters = NULL;
+ macro->identifier = talloc_strdup (macro, identifier);
+ macro->replacements = talloc_steal (macro, replacements);
+
+ previous = hash_table_find (parser->defines, identifier);
+ if (previous) {
+ if (_macro_equal (macro, previous)) {
+ talloc_free (macro);
+ return;
+ }
+ glcpp_error (loc, parser, "Redefinition of macro %s\n",
+ identifier);
+ }
+
+ hash_table_insert (parser->defines, macro, identifier);
+}
+
+void
+_define_function_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *identifier,
+ string_list_t *parameters,
+ token_list_t *replacements)
+{
+ macro_t *macro, *previous;
+
+ _check_for_reserved_macro_name(parser, loc, identifier);
+
+ macro = talloc (parser, macro_t);
+
+ macro->is_function = 1;
+ macro->parameters = talloc_steal (macro, parameters);
+ macro->identifier = talloc_strdup (macro, identifier);
+ macro->replacements = talloc_steal (macro, replacements);
+
+ previous = hash_table_find (parser->defines, identifier);
+ if (previous) {
+ if (_macro_equal (macro, previous)) {
+ talloc_free (macro);
+ return;
+ }
+ glcpp_error (loc, parser, "Redefinition of macro %s\n",
+ identifier);
+ }
+
+ hash_table_insert (parser->defines, macro, identifier);
+}
+
+static int
+glcpp_parser_lex (YYSTYPE *yylval, YYLTYPE *yylloc, glcpp_parser_t *parser)
+{
+ token_node_t *node;
+ int ret;
+
+ if (parser->lex_from_list == NULL) {
+ ret = glcpp_lex (yylval, yylloc, parser->scanner);
+
+ /* XXX: This ugly block of code exists for the sole
+ * purpose of converting a NEWLINE token into a SPACE
+ * token, but only in the case where we have seen a
+ * function-like macro name, but have not yet seen its
+ * closing parenthesis.
+ *
+ * There's perhaps a more compact way to do this with
+ * mid-rule actions in the grammar.
+ *
+ * I'm definitely not pleased with the complexity of
+ * this code here.
+ */
+ if (parser->newline_as_space)
+ {
+ if (ret == '(') {
+ parser->paren_count++;
+ } else if (ret == ')') {
+ parser->paren_count--;
+ if (parser->paren_count == 0)
+ parser->newline_as_space = 0;
+ } else if (ret == NEWLINE) {
+ ret = SPACE;
+ } else if (ret != SPACE) {
+ if (parser->paren_count == 0)
+ parser->newline_as_space = 0;
+ }
+ }
+ else if (parser->in_control_line)
+ {
+ if (ret == NEWLINE)
+ parser->in_control_line = 0;
+ }
+ else if (ret == HASH_DEFINE_OBJ || ret == HASH_DEFINE_FUNC ||
+ ret == HASH_UNDEF || ret == HASH_IF ||
+ ret == HASH_IFDEF || ret == HASH_IFNDEF ||
+ ret == HASH_ELIF || ret == HASH_ELSE ||
+ ret == HASH_ENDIF || ret == HASH)
+ {
+ parser->in_control_line = 1;
+ }
+ else if (ret == IDENTIFIER)
+ {
+ macro_t *macro;
+ macro = hash_table_find (parser->defines,
+ yylval->str);
+ if (macro && macro->is_function) {
+ parser->newline_as_space = 1;
+ parser->paren_count = 0;
+ }
+ }
+
+ return ret;
+ }
+
+ node = parser->lex_from_node;
+
+ if (node == NULL) {
+ talloc_free (parser->lex_from_list);
+ parser->lex_from_list = NULL;
+ return NEWLINE;
+ }
+
+ *yylval = node->token->value;
+ ret = node->token->type;
+
+ parser->lex_from_node = node->next;
+
+ return ret;
+}
+
+static void
+glcpp_parser_lex_from (glcpp_parser_t *parser, token_list_t *list)
+{
+ token_node_t *node;
+
+ assert (parser->lex_from_list == NULL);
+
+ /* Copy list, eliminating any space tokens. */
+ parser->lex_from_list = _token_list_create (parser);
+
+ for (node = list->head; node; node = node->next) {
+ if (node->token->type == SPACE)
+ continue;
+ _token_list_append (parser->lex_from_list, node->token);
+ }
+
+ talloc_free (list);
+
+ parser->lex_from_node = parser->lex_from_list->head;
+
+ /* It's possible the list consisted of nothing but whitespace. */
+ if (parser->lex_from_node == NULL) {
+ talloc_free (parser->lex_from_list);
+ parser->lex_from_list = NULL;
+ }
+}
+
+static void
+_glcpp_parser_skip_stack_push_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ int condition)
+{
+ skip_type_t current = SKIP_NO_SKIP;
+ skip_node_t *node;
+
+ if (parser->skip_stack)
+ current = parser->skip_stack->type;
+
+ node = talloc (parser, skip_node_t);
+ node->loc = *loc;
+
+ if (current == SKIP_NO_SKIP) {
+ if (condition)
+ node->type = SKIP_NO_SKIP;
+ else
+ node->type = SKIP_TO_ELSE;
+ } else {
+ node->type = SKIP_TO_ENDIF;
+ }
+
+ node->next = parser->skip_stack;
+ parser->skip_stack = node;
+}
+
+static void
+_glcpp_parser_skip_stack_change_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ const char *type, int condition)
+{
+ if (parser->skip_stack == NULL) {
+ glcpp_error (loc, parser, "%s without #if\n", type);
+ return;
+ }
+
+ if (parser->skip_stack->type == SKIP_TO_ELSE) {
+ if (condition)
+ parser->skip_stack->type = SKIP_NO_SKIP;
+ } else {
+ parser->skip_stack->type = SKIP_TO_ENDIF;
+ }
+}
+
+static void
+_glcpp_parser_skip_stack_pop (glcpp_parser_t *parser, YYLTYPE *loc)
+{
+ skip_node_t *node;
+
+ if (parser->skip_stack == NULL) {
+ glcpp_error (loc, parser, "#endif without #if\n");
+ return;
+ }
+
+ node = parser->skip_stack;
+ parser->skip_stack = node->next;
+ talloc_free (node);
+}
+
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.h b/mesalib/src/glsl/glcpp/glcpp-parse.h
new file mode 100644
index 000000000..40556854f
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp-parse.h
@@ -0,0 +1,100 @@
+/* A Bison parser, made by GNU Bison 2.4.3. */
+
+/* Skeleton interface for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2009, 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ COMMA_FINAL = 258,
+ DEFINED = 259,
+ ELIF_EXPANDED = 260,
+ HASH = 261,
+ HASH_DEFINE_FUNC = 262,
+ HASH_DEFINE_OBJ = 263,
+ HASH_ELIF = 264,
+ HASH_ELSE = 265,
+ HASH_ENDIF = 266,
+ HASH_IF = 267,
+ HASH_IFDEF = 268,
+ HASH_IFNDEF = 269,
+ HASH_UNDEF = 270,
+ HASH_VERSION = 271,
+ IDENTIFIER = 272,
+ IF_EXPANDED = 273,
+ INTEGER = 274,
+ INTEGER_STRING = 275,
+ NEWLINE = 276,
+ OTHER = 277,
+ PLACEHOLDER = 278,
+ SPACE = 279,
+ PASTE = 280,
+ OR = 281,
+ AND = 282,
+ NOT_EQUAL = 283,
+ EQUAL = 284,
+ GREATER_OR_EQUAL = 285,
+ LESS_OR_EQUAL = 286,
+ RIGHT_SHIFT = 287,
+ LEFT_SHIFT = 288,
+ UNARY = 289
+ };
+#endif
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y
new file mode 100644
index 000000000..43513ebb6
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp-parse.y
@@ -0,0 +1,1858 @@
+%{
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <inttypes.h>
+
+#include "glcpp.h"
+#include "main/core.h" /* for struct gl_extensions */
+#include "main/mtypes.h" /* for gl_api enum */
+
+#define glcpp_print(stream, str) stream = talloc_strdup_append(stream, str)
+#define glcpp_printf(stream, fmt, args, ...) \
+ stream = talloc_asprintf_append(stream, fmt, args)
+
+static void
+yyerror (YYLTYPE *locp, glcpp_parser_t *parser, const char *error);
+
+static void
+_define_object_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *macro,
+ token_list_t *replacements);
+
+static void
+_define_function_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *macro,
+ string_list_t *parameters,
+ token_list_t *replacements);
+
+static string_list_t *
+_string_list_create (void *ctx);
+
+static void
+_string_list_append_item (string_list_t *list, const char *str);
+
+static int
+_string_list_contains (string_list_t *list, const char *member, int *index);
+
+static int
+_string_list_length (string_list_t *list);
+
+static int
+_string_list_equal (string_list_t *a, string_list_t *b);
+
+static argument_list_t *
+_argument_list_create (void *ctx);
+
+static void
+_argument_list_append (argument_list_t *list, token_list_t *argument);
+
+static int
+_argument_list_length (argument_list_t *list);
+
+static token_list_t *
+_argument_list_member_at (argument_list_t *list, int index);
+
+/* Note: This function talloc_steal()s the str pointer. */
+static token_t *
+_token_create_str (void *ctx, int type, char *str);
+
+static token_t *
+_token_create_ival (void *ctx, int type, int ival);
+
+static token_list_t *
+_token_list_create (void *ctx);
+
+/* Note: This function adds a talloc_reference() to token.
+ *
+ * You may want to talloc_unlink any current reference if you no
+ * longer need it. */
+static void
+_token_list_append (token_list_t *list, token_t *token);
+
+static void
+_token_list_append_list (token_list_t *list, token_list_t *tail);
+
+static int
+_token_list_equal_ignoring_space (token_list_t *a, token_list_t *b);
+
+static active_list_t *
+_active_list_push (active_list_t *list,
+ const char *identifier,
+ token_node_t *marker);
+
+static active_list_t *
+_active_list_pop (active_list_t *list);
+
+int
+_active_list_contains (active_list_t *list, const char *identifier);
+
+static void
+_glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list);
+
+static void
+_glcpp_parser_expand_token_list (glcpp_parser_t *parser,
+ token_list_t *list);
+
+static void
+_glcpp_parser_print_expanded_token_list (glcpp_parser_t *parser,
+ token_list_t *list);
+
+static void
+_glcpp_parser_skip_stack_push_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ int condition);
+
+static void
+_glcpp_parser_skip_stack_change_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ const char *type, int condition);
+
+static void
+_glcpp_parser_skip_stack_pop (glcpp_parser_t *parser, YYLTYPE *loc);
+
+#define yylex glcpp_parser_lex
+
+static int
+glcpp_parser_lex (YYSTYPE *yylval, YYLTYPE *yylloc, glcpp_parser_t *parser);
+
+static void
+glcpp_parser_lex_from (glcpp_parser_t *parser, token_list_t *list);
+
+static void
+add_builtin_define(glcpp_parser_t *parser, const char *name, int value);
+
+%}
+
+%pure-parser
+%error-verbose
+
+%locations
+%initial-action {
+ @$.first_line = 1;
+ @$.first_column = 1;
+ @$.last_line = 1;
+ @$.last_column = 1;
+ @$.source = 0;
+}
+
+%parse-param {glcpp_parser_t *parser}
+%lex-param {glcpp_parser_t *parser}
+
+%expect 0
+%token COMMA_FINAL DEFINED ELIF_EXPANDED HASH HASH_DEFINE_FUNC HASH_DEFINE_OBJ HASH_ELIF HASH_ELSE HASH_ENDIF HASH_IF HASH_IFDEF HASH_IFNDEF HASH_UNDEF HASH_VERSION IDENTIFIER IF_EXPANDED INTEGER INTEGER_STRING NEWLINE OTHER PLACEHOLDER SPACE
+%token PASTE
+%type <ival> expression INTEGER operator SPACE integer_constant
+%type <str> IDENTIFIER INTEGER_STRING OTHER
+%type <string_list> identifier_list
+%type <token> preprocessing_token conditional_token
+%type <token_list> pp_tokens replacement_list text_line conditional_tokens
+%left OR
+%left AND
+%left '|'
+%left '^'
+%left '&'
+%left EQUAL NOT_EQUAL
+%left '<' '>' LESS_OR_EQUAL GREATER_OR_EQUAL
+%left LEFT_SHIFT RIGHT_SHIFT
+%left '+' '-'
+%left '*' '/' '%'
+%right UNARY
+
+%%
+
+input:
+ /* empty */
+| input line
+;
+
+line:
+ control_line {
+ glcpp_print(parser->output, "\n");
+ }
+| text_line {
+ _glcpp_parser_print_expanded_token_list (parser, $1);
+ glcpp_print(parser->output, "\n");
+ talloc_free ($1);
+ }
+| expanded_line
+| HASH non_directive
+;
+
+expanded_line:
+ IF_EXPANDED expression NEWLINE {
+ _glcpp_parser_skip_stack_push_if (parser, & @1, $2);
+ }
+| ELIF_EXPANDED expression NEWLINE {
+ _glcpp_parser_skip_stack_change_if (parser, & @1, "elif", $2);
+ }
+;
+
+control_line:
+ HASH_DEFINE_OBJ IDENTIFIER replacement_list NEWLINE {
+ _define_object_macro (parser, & @2, $2, $3);
+ }
+| HASH_DEFINE_FUNC IDENTIFIER '(' ')' replacement_list NEWLINE {
+ _define_function_macro (parser, & @2, $2, NULL, $5);
+ }
+| HASH_DEFINE_FUNC IDENTIFIER '(' identifier_list ')' replacement_list NEWLINE {
+ _define_function_macro (parser, & @2, $2, $4, $6);
+ }
+| HASH_UNDEF IDENTIFIER NEWLINE {
+ macro_t *macro = hash_table_find (parser->defines, $2);
+ if (macro) {
+ hash_table_remove (parser->defines, $2);
+ talloc_free (macro);
+ }
+ talloc_free ($2);
+ }
+| HASH_IF conditional_tokens NEWLINE {
+ /* Be careful to only evaluate the 'if' expression if
+ * we are not skipping. When we are skipping, we
+ * simply push a new 0-valued 'if' onto the skip
+ * stack.
+ *
+ * This avoids generating diagnostics for invalid
+ * expressions that are being skipped. */
+ if (parser->skip_stack == NULL ||
+ parser->skip_stack->type == SKIP_NO_SKIP)
+ {
+ _glcpp_parser_expand_if (parser, IF_EXPANDED, $2);
+ }
+ else
+ {
+ _glcpp_parser_skip_stack_push_if (parser, & @1, 0);
+ parser->skip_stack->type = SKIP_TO_ENDIF;
+ }
+ }
+| HASH_IF NEWLINE {
+ /* #if without an expression is only an error if we
+ * are not skipping */
+ if (parser->skip_stack == NULL ||
+ parser->skip_stack->type == SKIP_NO_SKIP)
+ {
+ glcpp_error(& @1, parser, "#if with no expression");
+ }
+ _glcpp_parser_skip_stack_push_if (parser, & @1, 0);
+ }
+| HASH_IFDEF IDENTIFIER junk NEWLINE {
+ macro_t *macro = hash_table_find (parser->defines, $2);
+ talloc_free ($2);
+ _glcpp_parser_skip_stack_push_if (parser, & @1, macro != NULL);
+ }
+| HASH_IFNDEF IDENTIFIER junk NEWLINE {
+ macro_t *macro = hash_table_find (parser->defines, $2);
+ talloc_free ($2);
+ _glcpp_parser_skip_stack_push_if (parser, & @1, macro == NULL);
+ }
+| HASH_ELIF conditional_tokens NEWLINE {
+ /* Be careful to only evaluate the 'elif' expression
+ * if we are not skipping. When we are skipping, we
+ * simply change to a 0-valued 'elif' on the skip
+ * stack.
+ *
+ * This avoids generating diagnostics for invalid
+ * expressions that are being skipped. */
+ if (parser->skip_stack &&
+ parser->skip_stack->type == SKIP_TO_ELSE)
+ {
+ _glcpp_parser_expand_if (parser, ELIF_EXPANDED, $2);
+ }
+ else
+ {
+ _glcpp_parser_skip_stack_change_if (parser, & @1,
+ "elif", 0);
+ }
+ }
+| HASH_ELIF NEWLINE {
+ /* #elif without an expression is an error unless we
+ * are skipping. */
+ if (parser->skip_stack &&
+ parser->skip_stack->type == SKIP_TO_ELSE)
+ {
+ glcpp_error(& @1, parser, "#elif with no expression");
+ }
+ else
+ {
+ _glcpp_parser_skip_stack_change_if (parser, & @1,
+ "elif", 0);
+ glcpp_warning(& @1, parser, "ignoring illegal #elif without expression");
+ }
+ }
+| HASH_ELSE NEWLINE {
+ _glcpp_parser_skip_stack_change_if (parser, & @1, "else", 1);
+ }
+| HASH_ENDIF NEWLINE {
+ _glcpp_parser_skip_stack_pop (parser, & @1);
+ }
+| HASH_VERSION integer_constant NEWLINE {
+ macro_t *macro = hash_table_find (parser->defines, "__VERSION__");
+ if (macro) {
+ hash_table_remove (parser->defines, "__VERSION__");
+ talloc_free (macro);
+ }
+ add_builtin_define (parser, "__VERSION__", $2);
+
+ if ($2 == 100)
+ add_builtin_define (parser, "GL_ES", 1);
+
+ glcpp_printf(parser->output, "#version %" PRIiMAX, $2);
+ }
+| HASH NEWLINE
+;
+
+integer_constant:
+ INTEGER_STRING {
+ if (strlen ($1) >= 3 && strncmp ($1, "0x", 2) == 0) {
+ $$ = strtoll ($1 + 2, NULL, 16);
+ } else if ($1[0] == '0') {
+ $$ = strtoll ($1, NULL, 8);
+ } else {
+ $$ = strtoll ($1, NULL, 10);
+ }
+ }
+| INTEGER {
+ $$ = $1;
+ }
+
+expression:
+ integer_constant
+| expression OR expression {
+ $$ = $1 || $3;
+ }
+| expression AND expression {
+ $$ = $1 && $3;
+ }
+| expression '|' expression {
+ $$ = $1 | $3;
+ }
+| expression '^' expression {
+ $$ = $1 ^ $3;
+ }
+| expression '&' expression {
+ $$ = $1 & $3;
+ }
+| expression NOT_EQUAL expression {
+ $$ = $1 != $3;
+ }
+| expression EQUAL expression {
+ $$ = $1 == $3;
+ }
+| expression GREATER_OR_EQUAL expression {
+ $$ = $1 >= $3;
+ }
+| expression LESS_OR_EQUAL expression {
+ $$ = $1 <= $3;
+ }
+| expression '>' expression {
+ $$ = $1 > $3;
+ }
+| expression '<' expression {
+ $$ = $1 < $3;
+ }
+| expression RIGHT_SHIFT expression {
+ $$ = $1 >> $3;
+ }
+| expression LEFT_SHIFT expression {
+ $$ = $1 << $3;
+ }
+| expression '-' expression {
+ $$ = $1 - $3;
+ }
+| expression '+' expression {
+ $$ = $1 + $3;
+ }
+| expression '%' expression {
+ $$ = $1 % $3;
+ }
+| expression '/' expression {
+ $$ = $1 / $3;
+ }
+| expression '*' expression {
+ $$ = $1 * $3;
+ }
+| '!' expression %prec UNARY {
+ $$ = ! $2;
+ }
+| '~' expression %prec UNARY {
+ $$ = ~ $2;
+ }
+| '-' expression %prec UNARY {
+ $$ = - $2;
+ }
+| '+' expression %prec UNARY {
+ $$ = + $2;
+ }
+| '(' expression ')' {
+ $$ = $2;
+ }
+;
+
+identifier_list:
+ IDENTIFIER {
+ $$ = _string_list_create (parser);
+ _string_list_append_item ($$, $1);
+ talloc_steal ($$, $1);
+ }
+| identifier_list ',' IDENTIFIER {
+ $$ = $1;
+ _string_list_append_item ($$, $3);
+ talloc_steal ($$, $3);
+ }
+;
+
+text_line:
+ NEWLINE { $$ = NULL; }
+| pp_tokens NEWLINE
+;
+
+non_directive:
+ pp_tokens NEWLINE {
+ yyerror (& @1, parser, "Invalid tokens after #");
+ }
+;
+
+replacement_list:
+ /* empty */ { $$ = NULL; }
+| pp_tokens
+;
+
+junk:
+ /* empty */
+| pp_tokens {
+ glcpp_warning(&@1, parser, "extra tokens at end of directive");
+ }
+;
+
+conditional_token:
+ /* Handle "defined" operator */
+ DEFINED IDENTIFIER {
+ int v = hash_table_find (parser->defines, $2) ? 1 : 0;
+ $$ = _token_create_ival (parser, INTEGER, v);
+ }
+| DEFINED '(' IDENTIFIER ')' {
+ int v = hash_table_find (parser->defines, $3) ? 1 : 0;
+ $$ = _token_create_ival (parser, INTEGER, v);
+ }
+| preprocessing_token
+;
+
+conditional_tokens:
+ /* Exactly the same as pp_tokens, but using conditional_token */
+ conditional_token {
+ parser->space_tokens = 1;
+ $$ = _token_list_create (parser);
+ _token_list_append ($$, $1);
+ talloc_unlink (parser, $1);
+ }
+| conditional_tokens conditional_token {
+ $$ = $1;
+ _token_list_append ($$, $2);
+ talloc_unlink (parser, $2);
+ }
+;
+
+pp_tokens:
+ preprocessing_token {
+ parser->space_tokens = 1;
+ $$ = _token_list_create (parser);
+ _token_list_append ($$, $1);
+ talloc_unlink (parser, $1);
+ }
+| pp_tokens preprocessing_token {
+ $$ = $1;
+ _token_list_append ($$, $2);
+ talloc_unlink (parser, $2);
+ }
+;
+
+preprocessing_token:
+ IDENTIFIER {
+ $$ = _token_create_str (parser, IDENTIFIER, $1);
+ $$->location = yylloc;
+ }
+| INTEGER_STRING {
+ $$ = _token_create_str (parser, INTEGER_STRING, $1);
+ $$->location = yylloc;
+ }
+| operator {
+ $$ = _token_create_ival (parser, $1, $1);
+ $$->location = yylloc;
+ }
+| OTHER {
+ $$ = _token_create_str (parser, OTHER, $1);
+ $$->location = yylloc;
+ }
+| SPACE {
+ $$ = _token_create_ival (parser, SPACE, SPACE);
+ $$->location = yylloc;
+ }
+;
+
+operator:
+ '[' { $$ = '['; }
+| ']' { $$ = ']'; }
+| '(' { $$ = '('; }
+| ')' { $$ = ')'; }
+| '{' { $$ = '{'; }
+| '}' { $$ = '}'; }
+| '.' { $$ = '.'; }
+| '&' { $$ = '&'; }
+| '*' { $$ = '*'; }
+| '+' { $$ = '+'; }
+| '-' { $$ = '-'; }
+| '~' { $$ = '~'; }
+| '!' { $$ = '!'; }
+| '/' { $$ = '/'; }
+| '%' { $$ = '%'; }
+| LEFT_SHIFT { $$ = LEFT_SHIFT; }
+| RIGHT_SHIFT { $$ = RIGHT_SHIFT; }
+| '<' { $$ = '<'; }
+| '>' { $$ = '>'; }
+| LESS_OR_EQUAL { $$ = LESS_OR_EQUAL; }
+| GREATER_OR_EQUAL { $$ = GREATER_OR_EQUAL; }
+| EQUAL { $$ = EQUAL; }
+| NOT_EQUAL { $$ = NOT_EQUAL; }
+| '^' { $$ = '^'; }
+| '|' { $$ = '|'; }
+| AND { $$ = AND; }
+| OR { $$ = OR; }
+| ';' { $$ = ';'; }
+| ',' { $$ = ','; }
+| '=' { $$ = '='; }
+| PASTE { $$ = PASTE; }
+;
+
+%%
+
+string_list_t *
+_string_list_create (void *ctx)
+{
+ string_list_t *list;
+
+ list = talloc (ctx, string_list_t);
+ list->head = NULL;
+ list->tail = NULL;
+
+ return list;
+}
+
+void
+_string_list_append_item (string_list_t *list, const char *str)
+{
+ string_node_t *node;
+
+ node = talloc (list, string_node_t);
+ node->str = talloc_strdup (node, str);
+
+ node->next = NULL;
+
+ if (list->head == NULL) {
+ list->head = node;
+ } else {
+ list->tail->next = node;
+ }
+
+ list->tail = node;
+}
+
+int
+_string_list_contains (string_list_t *list, const char *member, int *index)
+{
+ string_node_t *node;
+ int i;
+
+ if (list == NULL)
+ return 0;
+
+ for (i = 0, node = list->head; node; i++, node = node->next) {
+ if (strcmp (node->str, member) == 0) {
+ if (index)
+ *index = i;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+int
+_string_list_length (string_list_t *list)
+{
+ int length = 0;
+ string_node_t *node;
+
+ if (list == NULL)
+ return 0;
+
+ for (node = list->head; node; node = node->next)
+ length++;
+
+ return length;
+}
+
+int
+_string_list_equal (string_list_t *a, string_list_t *b)
+{
+ string_node_t *node_a, *node_b;
+
+ if (a == NULL && b == NULL)
+ return 1;
+
+ if (a == NULL || b == NULL)
+ return 0;
+
+ for (node_a = a->head, node_b = b->head;
+ node_a && node_b;
+ node_a = node_a->next, node_b = node_b->next)
+ {
+ if (strcmp (node_a->str, node_b->str))
+ return 0;
+ }
+
+ /* Catch the case of lists being different lengths, (which
+ * would cause the loop above to terminate after the shorter
+ * list). */
+ return node_a == node_b;
+}
+
+argument_list_t *
+_argument_list_create (void *ctx)
+{
+ argument_list_t *list;
+
+ list = talloc (ctx, argument_list_t);
+ list->head = NULL;
+ list->tail = NULL;
+
+ return list;
+}
+
+void
+_argument_list_append (argument_list_t *list, token_list_t *argument)
+{
+ argument_node_t *node;
+
+ node = talloc (list, argument_node_t);
+ node->argument = argument;
+
+ node->next = NULL;
+
+ if (list->head == NULL) {
+ list->head = node;
+ } else {
+ list->tail->next = node;
+ }
+
+ list->tail = node;
+}
+
+int
+_argument_list_length (argument_list_t *list)
+{
+ int length = 0;
+ argument_node_t *node;
+
+ if (list == NULL)
+ return 0;
+
+ for (node = list->head; node; node = node->next)
+ length++;
+
+ return length;
+}
+
+token_list_t *
+_argument_list_member_at (argument_list_t *list, int index)
+{
+ argument_node_t *node;
+ int i;
+
+ if (list == NULL)
+ return NULL;
+
+ node = list->head;
+ for (i = 0; i < index; i++) {
+ node = node->next;
+ if (node == NULL)
+ break;
+ }
+
+ if (node)
+ return node->argument;
+
+ return NULL;
+}
+
+/* Note: This function talloc_steal()s the str pointer. */
+token_t *
+_token_create_str (void *ctx, int type, char *str)
+{
+ token_t *token;
+
+ token = talloc (ctx, token_t);
+ token->type = type;
+ token->value.str = talloc_steal (token, str);
+
+ return token;
+}
+
+token_t *
+_token_create_ival (void *ctx, int type, int ival)
+{
+ token_t *token;
+
+ token = talloc (ctx, token_t);
+ token->type = type;
+ token->value.ival = ival;
+
+ return token;
+}
+
+token_list_t *
+_token_list_create (void *ctx)
+{
+ token_list_t *list;
+
+ list = talloc (ctx, token_list_t);
+ list->head = NULL;
+ list->tail = NULL;
+ list->non_space_tail = NULL;
+
+ return list;
+}
+
+void
+_token_list_append (token_list_t *list, token_t *token)
+{
+ token_node_t *node;
+
+ node = talloc (list, token_node_t);
+ node->token = talloc_reference (list, token);
+
+ node->next = NULL;
+
+ if (list->head == NULL) {
+ list->head = node;
+ } else {
+ list->tail->next = node;
+ }
+
+ list->tail = node;
+ if (token->type != SPACE)
+ list->non_space_tail = node;
+}
+
+void
+_token_list_append_list (token_list_t *list, token_list_t *tail)
+{
+ if (tail == NULL || tail->head == NULL)
+ return;
+
+ if (list->head == NULL) {
+ list->head = tail->head;
+ } else {
+ list->tail->next = tail->head;
+ }
+
+ list->tail = tail->tail;
+ list->non_space_tail = tail->non_space_tail;
+}
+
+static token_list_t *
+_token_list_copy (void *ctx, token_list_t *other)
+{
+ token_list_t *copy;
+ token_node_t *node;
+
+ if (other == NULL)
+ return NULL;
+
+ copy = _token_list_create (ctx);
+ for (node = other->head; node; node = node->next)
+ _token_list_append (copy, node->token);
+
+ return copy;
+}
+
+static void
+_token_list_trim_trailing_space (token_list_t *list)
+{
+ token_node_t *tail, *next;
+
+ if (list->non_space_tail) {
+ tail = list->non_space_tail->next;
+ list->non_space_tail->next = NULL;
+ list->tail = list->non_space_tail;
+
+ while (tail) {
+ next = tail->next;
+ talloc_free (tail);
+ tail = next;
+ }
+ }
+}
+
+int
+_token_list_equal_ignoring_space (token_list_t *a, token_list_t *b)
+{
+ token_node_t *node_a, *node_b;
+
+ node_a = a->head;
+ node_b = b->head;
+
+ while (1)
+ {
+ if (node_a == NULL && node_b == NULL)
+ break;
+
+ if (node_a == NULL || node_b == NULL)
+ return 0;
+
+ if (node_a->token->type == SPACE) {
+ node_a = node_a->next;
+ continue;
+ }
+
+ if (node_b->token->type == SPACE) {
+ node_b = node_b->next;
+ continue;
+ }
+
+ if (node_a->token->type != node_b->token->type)
+ return 0;
+
+ switch (node_a->token->type) {
+ case INTEGER:
+ if (node_a->token->value.ival !=
+ node_b->token->value.ival)
+ {
+ return 0;
+ }
+ break;
+ case IDENTIFIER:
+ case INTEGER_STRING:
+ case OTHER:
+ if (strcmp (node_a->token->value.str,
+ node_b->token->value.str))
+ {
+ return 0;
+ }
+ break;
+ }
+
+ node_a = node_a->next;
+ node_b = node_b->next;
+ }
+
+ return 1;
+}
+
+static void
+_token_print (char **out, token_t *token)
+{
+ if (token->type < 256) {
+ glcpp_printf (*out, "%c", token->type);
+ return;
+ }
+
+ switch (token->type) {
+ case INTEGER:
+ glcpp_printf (*out, "%" PRIiMAX, token->value.ival);
+ break;
+ case IDENTIFIER:
+ case INTEGER_STRING:
+ case OTHER:
+ glcpp_print (*out, token->value.str);
+ break;
+ case SPACE:
+ glcpp_print (*out, " ");
+ break;
+ case LEFT_SHIFT:
+ glcpp_print (*out, "<<");
+ break;
+ case RIGHT_SHIFT:
+ glcpp_print (*out, ">>");
+ break;
+ case LESS_OR_EQUAL:
+ glcpp_print (*out, "<=");
+ break;
+ case GREATER_OR_EQUAL:
+ glcpp_print (*out, ">=");
+ break;
+ case EQUAL:
+ glcpp_print (*out, "==");
+ break;
+ case NOT_EQUAL:
+ glcpp_print (*out, "!=");
+ break;
+ case AND:
+ glcpp_print (*out, "&&");
+ break;
+ case OR:
+ glcpp_print (*out, "||");
+ break;
+ case PASTE:
+ glcpp_print (*out, "##");
+ break;
+ case COMMA_FINAL:
+ glcpp_print (*out, ",");
+ break;
+ case PLACEHOLDER:
+ /* Nothing to print. */
+ break;
+ default:
+ assert(!"Error: Don't know how to print token.");
+ break;
+ }
+}
+
+/* Return a new token (talloc()ed off of 'token') formed by pasting
+ * 'token' and 'other'. Note that this function may return 'token' or
+ * 'other' directly rather than allocating anything new.
+ *
+ * Caution: Only very cursory error-checking is performed to see if
+ * the final result is a valid single token. */
+static token_t *
+_token_paste (glcpp_parser_t *parser, token_t *token, token_t *other)
+{
+ token_t *combined = NULL;
+
+ /* Pasting a placeholder onto anything makes no change. */
+ if (other->type == PLACEHOLDER)
+ return token;
+
+ /* When 'token' is a placeholder, just return 'other'. */
+ if (token->type == PLACEHOLDER)
+ return other;
+
+ /* A very few single-character punctuators can be combined
+ * with another to form a multi-character punctuator. */
+ switch (token->type) {
+ case '<':
+ if (other->type == '<')
+ combined = _token_create_ival (token, LEFT_SHIFT, LEFT_SHIFT);
+ else if (other->type == '=')
+ combined = _token_create_ival (token, LESS_OR_EQUAL, LESS_OR_EQUAL);
+ break;
+ case '>':
+ if (other->type == '>')
+ combined = _token_create_ival (token, RIGHT_SHIFT, RIGHT_SHIFT);
+ else if (other->type == '=')
+ combined = _token_create_ival (token, GREATER_OR_EQUAL, GREATER_OR_EQUAL);
+ break;
+ case '=':
+ if (other->type == '=')
+ combined = _token_create_ival (token, EQUAL, EQUAL);
+ break;
+ case '!':
+ if (other->type == '=')
+ combined = _token_create_ival (token, NOT_EQUAL, NOT_EQUAL);
+ break;
+ case '&':
+ if (other->type == '&')
+ combined = _token_create_ival (token, AND, AND);
+ break;
+ case '|':
+ if (other->type == '|')
+ combined = _token_create_ival (token, OR, OR);
+ break;
+ }
+
+ if (combined != NULL) {
+ /* Inherit the location from the first token */
+ combined->location = token->location;
+ return combined;
+ }
+
+ /* Two string-valued tokens can usually just be mashed
+ * together.
+ *
+ * XXX: This isn't actually legitimate. Several things here
+ * should result in a diagnostic since the result cannot be a
+ * valid, single pre-processing token. For example, pasting
+ * "123" and "abc" is not legal, but we don't catch that
+ * here. */
+ if ((token->type == IDENTIFIER || token->type == OTHER || token->type == INTEGER_STRING) &&
+ (other->type == IDENTIFIER || other->type == OTHER || other->type == INTEGER_STRING))
+ {
+ char *str;
+
+ str = talloc_asprintf (token, "%s%s", token->value.str,
+ other->value.str);
+ combined = _token_create_str (token, token->type, str);
+ combined->location = token->location;
+ return combined;
+ }
+
+ glcpp_error (&token->location, parser, "");
+ glcpp_print (parser->info_log, "Pasting \"");
+ _token_print (&parser->info_log, token);
+ glcpp_print (parser->info_log, "\" and \"");
+ _token_print (&parser->info_log, other);
+ glcpp_print (parser->info_log, "\" does not give a valid preprocessing token.\n");
+
+ return token;
+}
+
+static void
+_token_list_print (glcpp_parser_t *parser, token_list_t *list)
+{
+ token_node_t *node;
+
+ if (list == NULL)
+ return;
+
+ for (node = list->head; node; node = node->next)
+ _token_print (&parser->output, node->token);
+}
+
+void
+yyerror (YYLTYPE *locp, glcpp_parser_t *parser, const char *error)
+{
+ glcpp_error(locp, parser, "%s", error);
+}
+
+static void add_builtin_define(glcpp_parser_t *parser,
+ const char *name, int value)
+{
+ token_t *tok;
+ token_list_t *list;
+
+ tok = _token_create_ival (parser, INTEGER, value);
+
+ list = _token_list_create(parser);
+ _token_list_append(list, tok);
+ _define_object_macro(parser, NULL, name, list);
+
+ talloc_unlink(parser, tok);
+}
+
+glcpp_parser_t *
+glcpp_parser_create (const struct gl_extensions *extensions, int api)
+{
+ glcpp_parser_t *parser;
+ int language_version;
+
+ parser = talloc (NULL, glcpp_parser_t);
+
+ glcpp_lex_init_extra (parser, &parser->scanner);
+ parser->defines = hash_table_ctor (32, hash_table_string_hash,
+ hash_table_string_compare);
+ parser->active = NULL;
+ parser->lexing_if = 0;
+ parser->space_tokens = 1;
+ parser->newline_as_space = 0;
+ parser->in_control_line = 0;
+ parser->paren_count = 0;
+
+ parser->skip_stack = NULL;
+
+ parser->lex_from_list = NULL;
+ parser->lex_from_node = NULL;
+
+ parser->output = talloc_strdup(parser, "");
+ parser->info_log = talloc_strdup(parser, "");
+ parser->error = 0;
+
+ /* Add pre-defined macros. */
+ add_builtin_define(parser, "GL_ARB_draw_buffers", 1);
+ add_builtin_define(parser, "GL_ARB_texture_rectangle", 1);
+
+ if (api == API_OPENGLES2)
+ add_builtin_define(parser, "GL_ES", 1);
+
+ if (extensions != NULL) {
+ if (extensions->EXT_texture_array) {
+ add_builtin_define(parser, "GL_EXT_texture_array", 1);
+ }
+
+ if (extensions->ARB_fragment_coord_conventions)
+ add_builtin_define(parser, "GL_ARB_fragment_coord_conventions",
+ 1);
+ }
+
+ language_version = 110;
+ add_builtin_define(parser, "__VERSION__", language_version);
+
+ return parser;
+}
+
+int
+glcpp_parser_parse (glcpp_parser_t *parser)
+{
+ return yyparse (parser);
+}
+
+void
+glcpp_parser_destroy (glcpp_parser_t *parser)
+{
+ glcpp_lex_destroy (parser->scanner);
+ hash_table_dtor (parser->defines);
+ talloc_free (parser);
+}
+
+typedef enum function_status
+{
+ FUNCTION_STATUS_SUCCESS,
+ FUNCTION_NOT_A_FUNCTION,
+ FUNCTION_UNBALANCED_PARENTHESES
+} function_status_t;
+
+/* Find a set of function-like macro arguments by looking for a
+ * balanced set of parentheses.
+ *
+ * When called, 'node' should be the opening-parenthesis token, (or
+ * perhaps preceeding SPACE tokens). Upon successful return *last will
+ * be the last consumed node, (corresponding to the closing right
+ * parenthesis).
+ *
+ * Return values:
+ *
+ * FUNCTION_STATUS_SUCCESS:
+ *
+ * Successfully parsed a set of function arguments.
+ *
+ * FUNCTION_NOT_A_FUNCTION:
+ *
+ * Macro name not followed by a '('. This is not an error, but
+ * simply that the macro name should be treated as a non-macro.
+ *
+ * FUNCTION_UNBALANCED_PARENTHESES
+ *
+ * Macro name is not followed by a balanced set of parentheses.
+ */
+static function_status_t
+_arguments_parse (argument_list_t *arguments,
+ token_node_t *node,
+ token_node_t **last)
+{
+ token_list_t *argument;
+ int paren_count;
+
+ node = node->next;
+
+ /* Ignore whitespace before first parenthesis. */
+ while (node && node->token->type == SPACE)
+ node = node->next;
+
+ if (node == NULL || node->token->type != '(')
+ return FUNCTION_NOT_A_FUNCTION;
+
+ node = node->next;
+
+ argument = _token_list_create (arguments);
+ _argument_list_append (arguments, argument);
+
+ for (paren_count = 1; node; node = node->next) {
+ if (node->token->type == '(')
+ {
+ paren_count++;
+ }
+ else if (node->token->type == ')')
+ {
+ paren_count--;
+ if (paren_count == 0)
+ break;
+ }
+
+ if (node->token->type == ',' &&
+ paren_count == 1)
+ {
+ _token_list_trim_trailing_space (argument);
+ argument = _token_list_create (arguments);
+ _argument_list_append (arguments, argument);
+ }
+ else {
+ if (argument->head == NULL) {
+ /* Don't treat initial whitespace as
+ * part of the arguement. */
+ if (node->token->type == SPACE)
+ continue;
+ }
+ _token_list_append (argument, node->token);
+ }
+ }
+
+ if (paren_count)
+ return FUNCTION_UNBALANCED_PARENTHESES;
+
+ *last = node;
+
+ return FUNCTION_STATUS_SUCCESS;
+}
+
+static token_list_t *
+_token_list_create_with_one_space (void *ctx)
+{
+ token_list_t *list;
+ token_t *space;
+
+ list = _token_list_create (ctx);
+ space = _token_create_ival (list, SPACE, SPACE);
+ _token_list_append (list, space);
+
+ return list;
+}
+
+static void
+_glcpp_parser_expand_if (glcpp_parser_t *parser, int type, token_list_t *list)
+{
+ token_list_t *expanded;
+ token_t *token;
+
+ expanded = _token_list_create (parser);
+ token = _token_create_ival (parser, type, type);
+ _token_list_append (expanded, token);
+ _glcpp_parser_expand_token_list (parser, list);
+ _token_list_append_list (expanded, list);
+ glcpp_parser_lex_from (parser, expanded);
+}
+
+/* This is a helper function that's essentially part of the
+ * implementation of _glcpp_parser_expand_node. It shouldn't be called
+ * except for by that function.
+ *
+ * Returns NULL if node is a simple token with no expansion, (that is,
+ * although 'node' corresponds to an identifier defined as a
+ * function-like macro, it is not followed with a parenthesized
+ * argument list).
+ *
+ * Compute the complete expansion of node (which is a function-like
+ * macro) and subsequent nodes which are arguments.
+ *
+ * Returns the token list that results from the expansion and sets
+ * *last to the last node in the list that was consumed by the
+ * expansion. Specifically, *last will be set as follows: as the
+ * token of the closing right parenthesis.
+ */
+static token_list_t *
+_glcpp_parser_expand_function (glcpp_parser_t *parser,
+ token_node_t *node,
+ token_node_t **last)
+
+{
+ macro_t *macro;
+ const char *identifier;
+ argument_list_t *arguments;
+ function_status_t status;
+ token_list_t *substituted;
+ int parameter_index;
+
+ identifier = node->token->value.str;
+
+ macro = hash_table_find (parser->defines, identifier);
+
+ assert (macro->is_function);
+
+ arguments = _argument_list_create (parser);
+ status = _arguments_parse (arguments, node, last);
+
+ switch (status) {
+ case FUNCTION_STATUS_SUCCESS:
+ break;
+ case FUNCTION_NOT_A_FUNCTION:
+ return NULL;
+ case FUNCTION_UNBALANCED_PARENTHESES:
+ glcpp_error (&node->token->location, parser, "Macro %s call has unbalanced parentheses\n", identifier);
+ return NULL;
+ }
+
+ /* Replace a macro defined as empty with a SPACE token. */
+ if (macro->replacements == NULL) {
+ talloc_free (arguments);
+ return _token_list_create_with_one_space (parser);
+ }
+
+ if (! ((_argument_list_length (arguments) ==
+ _string_list_length (macro->parameters)) ||
+ (_string_list_length (macro->parameters) == 0 &&
+ _argument_list_length (arguments) == 1 &&
+ arguments->head->argument->head == NULL)))
+ {
+ glcpp_error (&node->token->location, parser,
+ "Error: macro %s invoked with %d arguments (expected %d)\n",
+ identifier,
+ _argument_list_length (arguments),
+ _string_list_length (macro->parameters));
+ return NULL;
+ }
+
+ /* Perform argument substitution on the replacement list. */
+ substituted = _token_list_create (arguments);
+
+ for (node = macro->replacements->head; node; node = node->next)
+ {
+ if (node->token->type == IDENTIFIER &&
+ _string_list_contains (macro->parameters,
+ node->token->value.str,
+ &parameter_index))
+ {
+ token_list_t *argument;
+ argument = _argument_list_member_at (arguments,
+ parameter_index);
+ /* Before substituting, we expand the argument
+ * tokens, or append a placeholder token for
+ * an empty argument. */
+ if (argument->head) {
+ token_list_t *expanded_argument;
+ expanded_argument = _token_list_copy (parser,
+ argument);
+ _glcpp_parser_expand_token_list (parser,
+ expanded_argument);
+ _token_list_append_list (substituted,
+ expanded_argument);
+ } else {
+ token_t *new_token;
+
+ new_token = _token_create_ival (substituted,
+ PLACEHOLDER,
+ PLACEHOLDER);
+ _token_list_append (substituted, new_token);
+ }
+ } else {
+ _token_list_append (substituted, node->token);
+ }
+ }
+
+ /* After argument substitution, and before further expansion
+ * below, implement token pasting. */
+
+ _token_list_trim_trailing_space (substituted);
+
+ node = substituted->head;
+ while (node)
+ {
+ token_node_t *next_non_space;
+
+ /* Look ahead for a PASTE token, skipping space. */
+ next_non_space = node->next;
+ while (next_non_space && next_non_space->token->type == SPACE)
+ next_non_space = next_non_space->next;
+
+ if (next_non_space == NULL)
+ break;
+
+ if (next_non_space->token->type != PASTE) {
+ node = next_non_space;
+ continue;
+ }
+
+ /* Now find the next non-space token after the PASTE. */
+ next_non_space = next_non_space->next;
+ while (next_non_space && next_non_space->token->type == SPACE)
+ next_non_space = next_non_space->next;
+
+ if (next_non_space == NULL) {
+ yyerror (&node->token->location, parser, "'##' cannot appear at either end of a macro expansion\n");
+ return NULL;
+ }
+
+ node->token = _token_paste (parser, node->token, next_non_space->token);
+ node->next = next_non_space->next;
+ if (next_non_space == substituted->tail)
+ substituted->tail = node;
+
+ node = node->next;
+ }
+
+ substituted->non_space_tail = substituted->tail;
+
+ return substituted;
+}
+
+/* Compute the complete expansion of node, (and subsequent nodes after
+ * 'node' in the case that 'node' is a function-like macro and
+ * subsequent nodes are arguments).
+ *
+ * Returns NULL if node is a simple token with no expansion.
+ *
+ * Otherwise, returns the token list that results from the expansion
+ * and sets *last to the last node in the list that was consumed by
+ * the expansion. Specifically, *last will be set as follows:
+ *
+ * As 'node' in the case of object-like macro expansion.
+ *
+ * As the token of the closing right parenthesis in the case of
+ * function-like macro expansion.
+ */
+static token_list_t *
+_glcpp_parser_expand_node (glcpp_parser_t *parser,
+ token_node_t *node,
+ token_node_t **last)
+{
+ token_t *token = node->token;
+ const char *identifier;
+ macro_t *macro;
+
+ /* We only expand identifiers */
+ if (token->type != IDENTIFIER) {
+ /* We change any COMMA into a COMMA_FINAL to prevent
+ * it being mistaken for an argument separator
+ * later. */
+ if (token->type == ',') {
+ token->type = COMMA_FINAL;
+ token->value.ival = COMMA_FINAL;
+ }
+
+ return NULL;
+ }
+
+ /* Look up this identifier in the hash table. */
+ identifier = token->value.str;
+ macro = hash_table_find (parser->defines, identifier);
+
+ /* Not a macro, so no expansion needed. */
+ if (macro == NULL)
+ return NULL;
+
+ /* Finally, don't expand this macro if we're already actively
+ * expanding it, (to avoid infinite recursion). */
+ if (_active_list_contains (parser->active, identifier)) {
+ /* We change the token type here from IDENTIFIER to
+ * OTHER to prevent any future expansion of this
+ * unexpanded token. */
+ char *str;
+ token_list_t *expansion;
+ token_t *final;
+
+ str = talloc_strdup (parser, token->value.str);
+ final = _token_create_str (parser, OTHER, str);
+ expansion = _token_list_create (parser);
+ _token_list_append (expansion, final);
+ *last = node;
+ return expansion;
+ }
+
+ if (! macro->is_function)
+ {
+ *last = node;
+
+ /* Replace a macro defined as empty with a SPACE token. */
+ if (macro->replacements == NULL)
+ return _token_list_create_with_one_space (parser);
+
+ return _token_list_copy (parser, macro->replacements);
+ }
+
+ return _glcpp_parser_expand_function (parser, node, last);
+}
+
+/* Push a new identifier onto the active list, returning the new list.
+ *
+ * Here, 'marker' is the token node that appears in the list after the
+ * expansion of 'identifier'. That is, when the list iterator begins
+ * examinging 'marker', then it is time to pop this node from the
+ * active stack.
+ */
+active_list_t *
+_active_list_push (active_list_t *list,
+ const char *identifier,
+ token_node_t *marker)
+{
+ active_list_t *node;
+
+ node = talloc (list, active_list_t);
+ node->identifier = talloc_strdup (node, identifier);
+ node->marker = marker;
+ node->next = list;
+
+ return node;
+}
+
+active_list_t *
+_active_list_pop (active_list_t *list)
+{
+ active_list_t *node = list;
+
+ if (node == NULL)
+ return NULL;
+
+ node = list->next;
+ talloc_free (list);
+
+ return node;
+}
+
+int
+_active_list_contains (active_list_t *list, const char *identifier)
+{
+ active_list_t *node;
+
+ if (list == NULL)
+ return 0;
+
+ for (node = list; node; node = node->next)
+ if (strcmp (node->identifier, identifier) == 0)
+ return 1;
+
+ return 0;
+}
+
+/* Walk over the token list replacing nodes with their expansion.
+ * Whenever nodes are expanded the walking will walk over the new
+ * nodes, continuing to expand as necessary. The results are placed in
+ * 'list' itself;
+ */
+static void
+_glcpp_parser_expand_token_list (glcpp_parser_t *parser,
+ token_list_t *list)
+{
+ token_node_t *node_prev;
+ token_node_t *node, *last = NULL;
+ token_list_t *expansion;
+
+ if (list == NULL)
+ return;
+
+ _token_list_trim_trailing_space (list);
+
+ node_prev = NULL;
+ node = list->head;
+
+ while (node) {
+
+ while (parser->active && parser->active->marker == node)
+ parser->active = _active_list_pop (parser->active);
+
+ /* Find the expansion for node, which will replace all
+ * nodes from node to last, inclusive. */
+ expansion = _glcpp_parser_expand_node (parser, node, &last);
+ if (expansion) {
+ token_node_t *n;
+
+ for (n = node; n != last->next; n = n->next)
+ while (parser->active &&
+ parser->active->marker == n)
+ {
+ parser->active = _active_list_pop (parser->active);
+ }
+
+ parser->active = _active_list_push (parser->active,
+ node->token->value.str,
+ last->next);
+
+ /* Splice expansion into list, supporting a
+ * simple deletion if the expansion is
+ * empty. */
+ if (expansion->head) {
+ if (node_prev)
+ node_prev->next = expansion->head;
+ else
+ list->head = expansion->head;
+ expansion->tail->next = last->next;
+ if (last == list->tail)
+ list->tail = expansion->tail;
+ } else {
+ if (node_prev)
+ node_prev->next = last->next;
+ else
+ list->head = last->next;
+ if (last == list->tail)
+ list->tail = NULL;
+ }
+ } else {
+ node_prev = node;
+ }
+ node = node_prev ? node_prev->next : list->head;
+ }
+
+ while (parser->active)
+ parser->active = _active_list_pop (parser->active);
+
+ list->non_space_tail = list->tail;
+}
+
+void
+_glcpp_parser_print_expanded_token_list (glcpp_parser_t *parser,
+ token_list_t *list)
+{
+ if (list == NULL)
+ return;
+
+ _glcpp_parser_expand_token_list (parser, list);
+
+ _token_list_trim_trailing_space (list);
+
+ _token_list_print (parser, list);
+}
+
+static void
+_check_for_reserved_macro_name (glcpp_parser_t *parser, YYLTYPE *loc,
+ const char *identifier)
+{
+ /* According to the GLSL specification, macro names starting with "__"
+ * or "GL_" are reserved for future use. So, don't allow them.
+ */
+ if (strncmp(identifier, "__", 2) == 0) {
+ glcpp_error (loc, parser, "Macro names starting with \"__\" are reserved.\n");
+ }
+ if (strncmp(identifier, "GL_", 3) == 0) {
+ glcpp_error (loc, parser, "Macro names starting with \"GL_\" are reserved.\n");
+ }
+}
+
+static int
+_macro_equal (macro_t *a, macro_t *b)
+{
+ if (a->is_function != b->is_function)
+ return 0;
+
+ if (a->is_function) {
+ if (! _string_list_equal (a->parameters, b->parameters))
+ return 0;
+ }
+
+ return _token_list_equal_ignoring_space (a->replacements,
+ b->replacements);
+}
+
+void
+_define_object_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *identifier,
+ token_list_t *replacements)
+{
+ macro_t *macro, *previous;
+
+ if (loc != NULL)
+ _check_for_reserved_macro_name(parser, loc, identifier);
+
+ macro = talloc (parser, macro_t);
+
+ macro->is_function = 0;
+ macro->parameters = NULL;
+ macro->identifier = talloc_strdup (macro, identifier);
+ macro->replacements = talloc_steal (macro, replacements);
+
+ previous = hash_table_find (parser->defines, identifier);
+ if (previous) {
+ if (_macro_equal (macro, previous)) {
+ talloc_free (macro);
+ return;
+ }
+ glcpp_error (loc, parser, "Redefinition of macro %s\n",
+ identifier);
+ }
+
+ hash_table_insert (parser->defines, macro, identifier);
+}
+
+void
+_define_function_macro (glcpp_parser_t *parser,
+ YYLTYPE *loc,
+ const char *identifier,
+ string_list_t *parameters,
+ token_list_t *replacements)
+{
+ macro_t *macro, *previous;
+
+ _check_for_reserved_macro_name(parser, loc, identifier);
+
+ macro = talloc (parser, macro_t);
+
+ macro->is_function = 1;
+ macro->parameters = talloc_steal (macro, parameters);
+ macro->identifier = talloc_strdup (macro, identifier);
+ macro->replacements = talloc_steal (macro, replacements);
+
+ previous = hash_table_find (parser->defines, identifier);
+ if (previous) {
+ if (_macro_equal (macro, previous)) {
+ talloc_free (macro);
+ return;
+ }
+ glcpp_error (loc, parser, "Redefinition of macro %s\n",
+ identifier);
+ }
+
+ hash_table_insert (parser->defines, macro, identifier);
+}
+
+static int
+glcpp_parser_lex (YYSTYPE *yylval, YYLTYPE *yylloc, glcpp_parser_t *parser)
+{
+ token_node_t *node;
+ int ret;
+
+ if (parser->lex_from_list == NULL) {
+ ret = glcpp_lex (yylval, yylloc, parser->scanner);
+
+ /* XXX: This ugly block of code exists for the sole
+ * purpose of converting a NEWLINE token into a SPACE
+ * token, but only in the case where we have seen a
+ * function-like macro name, but have not yet seen its
+ * closing parenthesis.
+ *
+ * There's perhaps a more compact way to do this with
+ * mid-rule actions in the grammar.
+ *
+ * I'm definitely not pleased with the complexity of
+ * this code here.
+ */
+ if (parser->newline_as_space)
+ {
+ if (ret == '(') {
+ parser->paren_count++;
+ } else if (ret == ')') {
+ parser->paren_count--;
+ if (parser->paren_count == 0)
+ parser->newline_as_space = 0;
+ } else if (ret == NEWLINE) {
+ ret = SPACE;
+ } else if (ret != SPACE) {
+ if (parser->paren_count == 0)
+ parser->newline_as_space = 0;
+ }
+ }
+ else if (parser->in_control_line)
+ {
+ if (ret == NEWLINE)
+ parser->in_control_line = 0;
+ }
+ else if (ret == HASH_DEFINE_OBJ || ret == HASH_DEFINE_FUNC ||
+ ret == HASH_UNDEF || ret == HASH_IF ||
+ ret == HASH_IFDEF || ret == HASH_IFNDEF ||
+ ret == HASH_ELIF || ret == HASH_ELSE ||
+ ret == HASH_ENDIF || ret == HASH)
+ {
+ parser->in_control_line = 1;
+ }
+ else if (ret == IDENTIFIER)
+ {
+ macro_t *macro;
+ macro = hash_table_find (parser->defines,
+ yylval->str);
+ if (macro && macro->is_function) {
+ parser->newline_as_space = 1;
+ parser->paren_count = 0;
+ }
+ }
+
+ return ret;
+ }
+
+ node = parser->lex_from_node;
+
+ if (node == NULL) {
+ talloc_free (parser->lex_from_list);
+ parser->lex_from_list = NULL;
+ return NEWLINE;
+ }
+
+ *yylval = node->token->value;
+ ret = node->token->type;
+
+ parser->lex_from_node = node->next;
+
+ return ret;
+}
+
+static void
+glcpp_parser_lex_from (glcpp_parser_t *parser, token_list_t *list)
+{
+ token_node_t *node;
+
+ assert (parser->lex_from_list == NULL);
+
+ /* Copy list, eliminating any space tokens. */
+ parser->lex_from_list = _token_list_create (parser);
+
+ for (node = list->head; node; node = node->next) {
+ if (node->token->type == SPACE)
+ continue;
+ _token_list_append (parser->lex_from_list, node->token);
+ }
+
+ talloc_free (list);
+
+ parser->lex_from_node = parser->lex_from_list->head;
+
+ /* It's possible the list consisted of nothing but whitespace. */
+ if (parser->lex_from_node == NULL) {
+ talloc_free (parser->lex_from_list);
+ parser->lex_from_list = NULL;
+ }
+}
+
+static void
+_glcpp_parser_skip_stack_push_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ int condition)
+{
+ skip_type_t current = SKIP_NO_SKIP;
+ skip_node_t *node;
+
+ if (parser->skip_stack)
+ current = parser->skip_stack->type;
+
+ node = talloc (parser, skip_node_t);
+ node->loc = *loc;
+
+ if (current == SKIP_NO_SKIP) {
+ if (condition)
+ node->type = SKIP_NO_SKIP;
+ else
+ node->type = SKIP_TO_ELSE;
+ } else {
+ node->type = SKIP_TO_ENDIF;
+ }
+
+ node->next = parser->skip_stack;
+ parser->skip_stack = node;
+}
+
+static void
+_glcpp_parser_skip_stack_change_if (glcpp_parser_t *parser, YYLTYPE *loc,
+ const char *type, int condition)
+{
+ if (parser->skip_stack == NULL) {
+ glcpp_error (loc, parser, "%s without #if\n", type);
+ return;
+ }
+
+ if (parser->skip_stack->type == SKIP_TO_ELSE) {
+ if (condition)
+ parser->skip_stack->type = SKIP_NO_SKIP;
+ } else {
+ parser->skip_stack->type = SKIP_TO_ENDIF;
+ }
+}
+
+static void
+_glcpp_parser_skip_stack_pop (glcpp_parser_t *parser, YYLTYPE *loc)
+{
+ skip_node_t *node;
+
+ if (parser->skip_stack == NULL) {
+ glcpp_error (loc, parser, "#endif without #if\n");
+ return;
+ }
+
+ node = parser->skip_stack;
+ parser->skip_stack = node->next;
+ talloc_free (node);
+}
diff --git a/mesalib/src/glsl/glcpp/glcpp.c b/mesalib/src/glsl/glcpp/glcpp.c
new file mode 100644
index 000000000..419b1fc25
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include "glcpp.h"
+#include "main/mtypes.h"
+
+#ifdef _MSC_VER
+#include <io.h>
+#define STDIN_FILENO 0
+#define read _read
+#define open _open
+#define close _close
+#endif
+
+extern int yydebug;
+
+/* Read from fd until EOF and return a string of everything read.
+ */
+static char *
+load_text_fd (void *ctx, int fd)
+{
+#define CHUNK 4096
+ char *text = NULL;
+ ssize_t text_size = 0;
+ ssize_t total_read = 0;
+ ssize_t bytes;
+
+ while (1) {
+ if (total_read + CHUNK + 1 > text_size) {
+ text_size = text_size ? text_size * 2 : CHUNK + 1;
+ text = talloc_realloc_size (ctx, text, text_size);
+ if (text == NULL) {
+ fprintf (stderr, "Out of memory\n");
+ return NULL;
+ }
+ }
+ bytes = read (fd, text + total_read, CHUNK);
+ if (bytes < 0) {
+ fprintf (stderr, "Error while reading: %s\n",
+ strerror (errno));
+ talloc_free (text);
+ return NULL;
+ }
+
+ if (bytes == 0) {
+ break;
+ }
+
+ total_read += bytes;
+ }
+
+ text[total_read] = '\0';
+
+ return text;
+}
+
+static char *
+load_text_file(void *ctx, const char *filename)
+{
+ char *text;
+ int fd;
+
+ if (filename == NULL || strcmp (filename, "-") == 0)
+ return load_text_fd (ctx, STDIN_FILENO);
+
+ fd = open (filename, O_RDONLY);
+ if (fd < 0) {
+ fprintf (stderr, "Failed to open file %s: %s\n",
+ filename, strerror (errno));
+ return NULL;
+ }
+
+ text = load_text_fd (ctx, fd);
+
+ close(fd);
+
+ return text;
+}
+
+int
+main (int argc, char *argv[])
+{
+ char *filename = NULL;
+ void *ctx = talloc(NULL, void*);
+ char *info_log = talloc_strdup(ctx, "");
+ const char *shader;
+ int ret;
+
+ if (argc) {
+ filename = argv[1];
+ }
+
+ shader = load_text_file (ctx, filename);
+ if (shader == NULL)
+ return 1;
+
+ ret = preprocess(ctx, &shader, &info_log, NULL, API_OPENGL);
+
+ printf("%s", shader);
+ fprintf(stderr, "%s", info_log);
+
+ talloc_free(ctx);
+
+ return ret;
+}
diff --git a/mesalib/src/glsl/glcpp/glcpp.h b/mesalib/src/glsl/glcpp/glcpp.h
new file mode 100644
index 000000000..7125d325d
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/glcpp.h
@@ -0,0 +1,222 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef GLCPP_H
+#define GLCPP_H
+
+#include <stdint.h>
+
+#include <talloc.h>
+
+#include "program/hash_table.h"
+
+#define yyscan_t void*
+
+/* Some data types used for parser values. */
+
+typedef struct string_node {
+ const char *str;
+ struct string_node *next;
+} string_node_t;
+
+typedef struct string_list {
+ string_node_t *head;
+ string_node_t *tail;
+} string_list_t;
+
+typedef struct token token_t;
+typedef struct token_list token_list_t;
+
+typedef union YYSTYPE
+{
+ intmax_t ival;
+ char *str;
+ string_list_t *string_list;
+ token_t *token;
+ token_list_t *token_list;
+} YYSTYPE;
+
+# define YYSTYPE_IS_TRIVIAL 1
+# define YYSTYPE_IS_DECLARED 1
+
+typedef struct YYLTYPE {
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+ unsigned source;
+} YYLTYPE;
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+do { \
+ if (N) \
+ { \
+ (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC(Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC(Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC(Rhs, 0).last_column; \
+ } \
+ (Current).source = 0; \
+} while (0)
+
+struct token {
+ int type;
+ YYSTYPE value;
+ YYLTYPE location;
+};
+
+typedef struct token_node {
+ token_t *token;
+ struct token_node *next;
+} token_node_t;
+
+struct token_list {
+ token_node_t *head;
+ token_node_t *tail;
+ token_node_t *non_space_tail;
+};
+
+typedef struct argument_node {
+ token_list_t *argument;
+ struct argument_node *next;
+} argument_node_t;
+
+typedef struct argument_list {
+ argument_node_t *head;
+ argument_node_t *tail;
+} argument_list_t;
+
+typedef struct glcpp_parser glcpp_parser_t;
+
+typedef enum {
+ TOKEN_CLASS_IDENTIFIER,
+ TOKEN_CLASS_IDENTIFIER_FINALIZED,
+ TOKEN_CLASS_FUNC_MACRO,
+ TOKEN_CLASS_OBJ_MACRO
+} token_class_t;
+
+token_class_t
+glcpp_parser_classify_token (glcpp_parser_t *parser,
+ const char *identifier,
+ int *parameter_index);
+
+typedef struct {
+ int is_function;
+ string_list_t *parameters;
+ const char *identifier;
+ token_list_t *replacements;
+} macro_t;
+
+typedef struct expansion_node {
+ macro_t *macro;
+ token_node_t *replacements;
+ struct expansion_node *next;
+} expansion_node_t;
+
+typedef enum skip_type {
+ SKIP_NO_SKIP,
+ SKIP_TO_ELSE,
+ SKIP_TO_ENDIF
+} skip_type_t;
+
+typedef struct skip_node {
+ skip_type_t type;
+ YYLTYPE loc; /* location of the initial #if/#elif/... */
+ struct skip_node *next;
+} skip_node_t;
+
+typedef struct active_list {
+ const char *identifier;
+ token_node_t *marker;
+ struct active_list *next;
+} active_list_t;
+
+struct glcpp_parser {
+ yyscan_t scanner;
+ struct hash_table *defines;
+ active_list_t *active;
+ int lexing_if;
+ int space_tokens;
+ int newline_as_space;
+ int in_control_line;
+ int paren_count;
+ skip_node_t *skip_stack;
+ token_list_t *lex_from_list;
+ token_node_t *lex_from_node;
+ char *output;
+ char *info_log;
+ int error;
+};
+
+struct gl_extensions;
+
+glcpp_parser_t *
+glcpp_parser_create (const struct gl_extensions *extensions, int api);
+
+int
+glcpp_parser_parse (glcpp_parser_t *parser);
+
+void
+glcpp_parser_destroy (glcpp_parser_t *parser);
+
+int
+preprocess(void *talloc_ctx, const char **shader, char **info_log,
+ const struct gl_extensions *extensions, int api);
+
+/* Functions for writing to the info log */
+
+void
+glcpp_error (YYLTYPE *locp, glcpp_parser_t *parser, const char *fmt, ...);
+
+void
+glcpp_warning (YYLTYPE *locp, glcpp_parser_t *parser, const char *fmt, ...);
+
+/* Generated by glcpp-lex.l to glcpp-lex.c */
+
+int
+glcpp_lex_init_extra (glcpp_parser_t *parser, yyscan_t* scanner);
+
+void
+glcpp_lex_set_source_string(glcpp_parser_t *parser, const char *shader);
+
+int
+glcpp_lex (YYSTYPE *lvalp, YYLTYPE *llocp, yyscan_t scanner);
+
+int
+glcpp_lex_destroy (yyscan_t scanner);
+
+/* Generated by glcpp-parse.y to glcpp-parse.c */
+
+int
+yyparse (glcpp_parser_t *parser);
+
+#endif
diff --git a/mesalib/src/glsl/glcpp/pp.c b/mesalib/src/glsl/glcpp/pp.c
new file mode 100644
index 000000000..e1a3a88a3
--- /dev/null
+++ b/mesalib/src/glsl/glcpp/pp.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+#include "glcpp.h"
+#include "main/core.h" /* for isblank() on MSVC */
+
+void
+glcpp_error (YYLTYPE *locp, glcpp_parser_t *parser, const char *fmt, ...)
+{
+ va_list ap;
+
+ parser->error = 1;
+ parser->info_log = talloc_asprintf_append(parser->info_log,
+ "%u:%u(%u): "
+ "preprocessor error: ",
+ locp->source,
+ locp->first_line,
+ locp->first_column);
+ va_start(ap, fmt);
+ parser->info_log = talloc_vasprintf_append(parser->info_log, fmt, ap);
+ va_end(ap);
+ parser->info_log = talloc_strdup_append(parser->info_log, "\n");
+}
+
+void
+glcpp_warning (YYLTYPE *locp, glcpp_parser_t *parser, const char *fmt, ...)
+{
+ va_list ap;
+
+ parser->info_log = talloc_asprintf_append(parser->info_log,
+ "%u:%u(%u): "
+ "preprocessor warning: ",
+ locp->source,
+ locp->first_line,
+ locp->first_column);
+ va_start(ap, fmt);
+ parser->info_log = talloc_vasprintf_append(parser->info_log, fmt, ap);
+ va_end(ap);
+ parser->info_log = talloc_strdup_append(parser->info_log, "\n");
+}
+
+/* Searches backwards for '^ *#' from a given starting point. */
+static int
+in_directive(const char *shader, const char *ptr)
+{
+ assert(ptr >= shader);
+
+ /* Search backwards for '#'. If we find a \n first, it doesn't count */
+ for (; ptr >= shader && *ptr != '#'; ptr--) {
+ if (*ptr == '\n')
+ return 0;
+ }
+ if (ptr >= shader) {
+ /* Found '#'...look for spaces preceded by a newline */
+ for (ptr--; ptr >= shader && isblank(*ptr); ptr--);
+ // FIXME: I don't think the '\n' case can happen
+ if (ptr < shader || *ptr == '\n')
+ return 1;
+ }
+ return 0;
+}
+
+/* Remove any line continuation characters in preprocessing directives.
+ * However, ignore any in GLSL code, as "There is no line continuation
+ * character" (1.30 page 9) in GLSL.
+ */
+static char *
+remove_line_continuations(glcpp_parser_t *ctx, const char *shader)
+{
+ int in_continued_line = 0;
+ int extra_newlines = 0;
+ char *clean = talloc_strdup(ctx, "");
+ const char *search_start = shader;
+ const char *newline;
+ while ((newline = strchr(search_start, '\n')) != NULL) {
+ const char *backslash = NULL;
+
+ /* # of characters preceding the newline. */
+ int n = newline - shader;
+
+ /* Find the preceding '\', if it exists */
+ if (n >= 1 && newline[-1] == '\\')
+ backslash = newline - 1;
+ else if (n >= 2 && newline[-1] == '\r' && newline[-2] == '\\')
+ backslash = newline - 2;
+
+ /* Double backslashes don't count (the backslash is escaped) */
+ if (backslash != NULL && backslash[-1] == '\\') {
+ backslash = NULL;
+ }
+
+ if (backslash != NULL) {
+ /* We found a line continuation, but do we care? */
+ if (!in_continued_line) {
+ if (in_directive(shader, backslash)) {
+ in_continued_line = 1;
+ extra_newlines = 0;
+ }
+ }
+ if (in_continued_line) {
+ /* Copy everything before the \ */
+ clean = talloc_strndup_append(clean, shader, backslash - shader);
+ shader = newline + 1;
+ extra_newlines++;
+ }
+ } else if (in_continued_line) {
+ /* Copy everything up to and including the \n */
+ clean = talloc_strndup_append(clean, shader, newline - shader + 1);
+ shader = newline + 1;
+ /* Output extra newlines to make line numbers match */
+ for (; extra_newlines > 0; extra_newlines--)
+ clean = talloc_strdup_append(clean, "\n");
+ in_continued_line = 0;
+ }
+ search_start = newline + 1;
+ }
+ clean = talloc_strdup_append(clean, shader);
+ return clean;
+}
+
+int
+preprocess(void *talloc_ctx, const char **shader, char **info_log,
+ const struct gl_extensions *extensions, int api)
+{
+ int errors;
+ glcpp_parser_t *parser = glcpp_parser_create (extensions, api);
+ *shader = remove_line_continuations(parser, *shader);
+
+ glcpp_lex_set_source_string (parser, *shader);
+
+ glcpp_parser_parse (parser);
+
+ if (parser->skip_stack)
+ glcpp_error (&parser->skip_stack->loc, parser, "Unterminated #if\n");
+
+ *info_log = talloc_strdup_append(*info_log, parser->info_log);
+
+ talloc_steal(talloc_ctx, parser->output);
+ *shader = parser->output;
+
+ errors = parser->error;
+ glcpp_parser_destroy (parser);
+ return errors;
+}
diff --git a/mesalib/src/glsl/glsl_lexer.cpp b/mesalib/src/glsl/glsl_lexer.cpp
new file mode 100644
index 000000000..7661bbe98
--- /dev/null
+++ b/mesalib/src/glsl/glsl_lexer.cpp
@@ -0,0 +1,3488 @@
+#line 2 "glsl_lexer.cpp"
+
+#line 4 "glsl_lexer.cpp"
+
+#define YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 35
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t;
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX (4294967295U)
+#endif
+
+#endif /* ! FLEXINT_H */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else /* ! __cplusplus */
+
+/* C99 requires __STDC__ to be defined as 1. */
+#if defined (__STDC__)
+
+#define YY_USE_CONST
+
+#endif /* defined (__STDC__) */
+#endif /* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index. If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* An opaque pointer. */
+#ifndef YY_TYPEDEF_YY_SCANNER_T
+#define YY_TYPEDEF_YY_SCANNER_T
+typedef void* yyscan_t;
+#endif
+
+/* For convenience, these vars (plus the bison vars far below)
+ are macros in the reentrant scanner. */
+#define yyin yyg->yyin_r
+#define yyout yyg->yyout_r
+#define yyextra yyg->yyextra_r
+#define yyleng yyg->yyleng_r
+#define yytext yyg->yytext_r
+#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
+#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
+#define yy_flex_debug yyg->yy_flex_debug_r
+
+/* Enter a start condition. This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN yyg->yy_start = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state. The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START ((yyg->yy_start - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE _mesa_glsl_restart(yyin ,yyscanner )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+ #define YY_LESS_LINENO(n)
+
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up yytext. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ *yy_cp = yyg->yy_hold_char; \
+ YY_RESTORE_YY_MORE_OFFSET \
+ yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+ YY_DO_BEFORE_ACTION; /* set up yytext again */ \
+ } \
+ while ( 0 )
+
+#define unput(c) yyunput( c, yyg->yytext_ptr , yyscanner )
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+ {
+ FILE *yy_input_file;
+
+ char *yy_ch_buf; /* input buffer */
+ char *yy_buf_pos; /* current position in input buffer */
+
+ /* Size of input buffer in bytes, not including room for EOB
+ * characters.
+ */
+ yy_size_t yy_buf_size;
+
+ /* Number of characters read into yy_ch_buf, not including EOB
+ * characters.
+ */
+ int yy_n_chars;
+
+ /* Whether we "own" the buffer - i.e., we know we created it,
+ * and can realloc() it to grow it, and should free() it to
+ * delete it.
+ */
+ int yy_is_our_buffer;
+
+ /* Whether this is an "interactive" input source; if so, and
+ * if we're using stdio for input, then we want to use getc()
+ * instead of fread(), to make sure we stop fetching input after
+ * each newline.
+ */
+ int yy_is_interactive;
+
+ /* Whether we're considered to be at the beginning of a line.
+ * If so, '^' rules will be active on the next match, otherwise
+ * not.
+ */
+ int yy_at_bol;
+
+ int yy_bs_lineno; /**< The line count. */
+ int yy_bs_column; /**< The column count. */
+
+ /* Whether to try to fill the input buffer when we reach the
+ * end of it.
+ */
+ int yy_fill_buffer;
+
+ int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+ /* When an EOF's been seen but there's still some text to process
+ * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+ * shouldn't try reading from the input source any more. We might
+ * still have a bunch of tokens to match, though, because of
+ * possible backing-up.
+ *
+ * When we actually see the EOF, we change the status to "new"
+ * (via _mesa_glsl_restart()), so that the user can continue scanning by
+ * just pointing yyin at a new input file.
+ */
+#define YY_BUFFER_EOF_PENDING 2
+
+ };
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( yyg->yy_buffer_stack \
+ ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \
+ : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]
+
+void _mesa_glsl_restart (FILE *input_file ,yyscan_t yyscanner );
+void _mesa_glsl__switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
+YY_BUFFER_STATE _mesa_glsl__create_buffer (FILE *file,int size ,yyscan_t yyscanner );
+void _mesa_glsl__delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
+void _mesa_glsl__flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
+void _mesa_glsl_push_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
+void _mesa_glsl_pop_buffer_state (yyscan_t yyscanner );
+
+static void _mesa_glsl_ensure_buffer_stack (yyscan_t yyscanner );
+static void _mesa_glsl__load_buffer_state (yyscan_t yyscanner );
+static void _mesa_glsl__init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan_t yyscanner );
+
+#define YY_FLUSH_BUFFER _mesa_glsl__flush_buffer(YY_CURRENT_BUFFER ,yyscanner)
+
+YY_BUFFER_STATE _mesa_glsl__scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
+YY_BUFFER_STATE _mesa_glsl__scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
+YY_BUFFER_STATE _mesa_glsl__scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
+
+void *_mesa_glsl_alloc (yy_size_t ,yyscan_t yyscanner );
+void *_mesa_glsl_realloc (void *,yy_size_t ,yyscan_t yyscanner );
+void _mesa_glsl_free (void * ,yyscan_t yyscanner );
+
+#define yy_new_buffer _mesa_glsl__create_buffer
+
+#define yy_set_interactive(is_interactive) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){ \
+ _mesa_glsl_ensure_buffer_stack (yyscanner); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ _mesa_glsl__create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+ }
+
+#define yy_set_bol(at_bol) \
+ { \
+ if ( ! YY_CURRENT_BUFFER ){\
+ _mesa_glsl_ensure_buffer_stack (yyscanner); \
+ YY_CURRENT_BUFFER_LVALUE = \
+ _mesa_glsl__create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \
+ } \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+ }
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define _mesa_glsl_wrap(n) 1
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+typedef int yy_state_type;
+
+#define yytext_ptr yytext_r
+
+static yy_state_type yy_get_previous_state (yyscan_t yyscanner );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state ,yyscan_t yyscanner);
+static int yy_get_next_buffer (yyscan_t yyscanner );
+static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up yytext.
+ */
+#define YY_DO_BEFORE_ACTION \
+ yyg->yytext_ptr = yy_bp; \
+ yyleng = (size_t) (yy_cp - yy_bp); \
+ yyg->yy_hold_char = *yy_cp; \
+ *yy_cp = '\0'; \
+ yyg->yy_c_buf_p = yy_cp;
+
+#define YY_NUM_RULES 183
+#define YY_END_OF_BUFFER 184
+/* This struct is not used in this scanner,
+ but its presence is necessary. */
+struct yy_trans_info
+ {
+ flex_int32_t yy_verify;
+ flex_int32_t yy_nxt;
+ };
+static yyconst flex_int16_t yy_accept[708] =
+ { 0,
+ 0, 0, 15, 15, 0, 0, 184, 182, 1, 20,
+ 182, 182, 182, 182, 182, 182, 182, 182, 96, 94,
+ 182, 182, 182, 181, 182, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 182, 1, 182, 91, 183,
+ 15, 19, 183, 18, 16, 17, 13, 12, 1, 80,
+ 87, 81, 90, 84, 75, 86, 76, 93, 98, 85,
+ 99, 96, 0, 0, 101, 0, 94, 0, 77, 79,
+ 78, 0, 181, 83, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 28, 181, 181, 181,
+
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 32, 181, 181, 56, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 92, 82, 1, 0, 0,
+ 2, 0, 0, 0, 0, 15, 14, 18, 17, 0,
+ 98, 97, 0, 99, 0, 100, 95, 88, 89, 181,
+ 104, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 31, 181, 181, 181, 181, 181, 181, 181,
+
+ 181, 181, 181, 25, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 57, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 0, 0, 0, 0, 14, 0, 98, 0,
+ 97, 0, 99, 100, 181, 181, 23, 181, 181, 144,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 30,
+ 107, 181, 181, 181, 181, 63, 181, 181, 112, 126,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 123, 147, 44, 45, 46, 181, 181, 181, 181,
+
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 110, 102, 181, 181,
+ 181, 181, 181, 181, 181, 41, 42, 43, 73, 181,
+ 181, 0, 0, 0, 0, 0, 97, 181, 181, 26,
+ 35, 36, 37, 181, 105, 181, 22, 181, 181, 181,
+ 181, 134, 135, 136, 181, 103, 181, 127, 24, 137,
+ 138, 139, 149, 131, 132, 133, 181, 181, 181, 58,
+ 129, 181, 181, 38, 39, 40, 181, 181, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 181, 124, 181, 181, 181, 181, 181, 181, 181,
+
+ 181, 181, 181, 106, 181, 146, 181, 181, 29, 0,
+ 0, 0, 0, 153, 181, 181, 151, 181, 181, 181,
+ 125, 120, 156, 181, 181, 181, 181, 181, 181, 115,
+ 181, 181, 74, 47, 48, 49, 50, 51, 52, 53,
+ 54, 55, 181, 181, 181, 181, 130, 111, 181, 181,
+ 118, 34, 181, 181, 143, 64, 119, 72, 154, 113,
+ 181, 181, 181, 181, 181, 181, 181, 0, 0, 0,
+ 0, 181, 181, 181, 114, 33, 181, 181, 181, 181,
+ 181, 181, 157, 158, 159, 181, 181, 181, 181, 148,
+ 181, 181, 181, 181, 181, 181, 181, 181, 108, 181,
+
+ 181, 181, 181, 181, 59, 181, 60, 181, 0, 0,
+ 0, 0, 0, 181, 61, 27, 121, 161, 162, 163,
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 116, 181, 181, 181, 181, 181, 181, 181, 181,
+ 181, 109, 165, 166, 167, 181, 181, 128, 117, 0,
+ 0, 6, 0, 0, 0, 11, 3, 21, 181, 181,
+ 181, 181, 181, 181, 181, 181, 181, 160, 122, 62,
+ 145, 181, 152, 150, 180, 66, 67, 68, 181, 181,
+ 181, 181, 181, 181, 0, 0, 0, 0, 0, 0,
+ 181, 181, 181, 164, 181, 181, 181, 181, 181, 181,
+
+ 181, 181, 181, 181, 181, 181, 181, 181, 181, 168,
+ 4, 0, 5, 0, 0, 0, 0, 0, 181, 181,
+ 181, 181, 181, 181, 181, 177, 181, 181, 181, 181,
+ 181, 181, 69, 181, 181, 181, 0, 0, 0, 181,
+ 181, 178, 169, 181, 170, 181, 181, 181, 181, 181,
+ 181, 181, 181, 181, 179, 0, 0, 171, 172, 175,
+ 176, 65, 181, 140, 181, 141, 155, 173, 174, 0,
+ 0, 181, 181, 181, 0, 0, 0, 70, 181, 71,
+ 0, 0, 0, 181, 0, 0, 0, 181, 0, 0,
+ 7, 0, 0, 181, 0, 8, 0, 0, 142, 0,
+
+ 0, 0, 0, 9, 0, 10, 0
+ } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
+ 1, 1, 4, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 2, 5, 1, 6, 1, 7, 8, 1, 9,
+ 10, 11, 12, 1, 13, 14, 15, 16, 17, 18,
+ 19, 20, 21, 21, 21, 22, 22, 23, 1, 24,
+ 25, 26, 1, 1, 27, 28, 29, 30, 31, 32,
+ 33, 33, 33, 33, 33, 33, 33, 33, 33, 33,
+ 33, 34, 35, 33, 33, 33, 33, 36, 33, 33,
+ 1, 1, 1, 37, 38, 1, 39, 40, 41, 42,
+
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
+ 53, 54, 33, 55, 56, 57, 58, 59, 60, 61,
+ 62, 63, 1, 64, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1
+ } ;
+
+static yyconst flex_int32_t yy_meta[65] =
+ { 0,
+ 1, 2, 3, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 4, 4, 4, 4, 4,
+ 4, 5, 1, 1, 1, 1, 6, 6, 6, 6,
+ 5, 5, 7, 7, 7, 8, 1, 7, 6, 6,
+ 6, 6, 5, 5, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 8, 7, 7, 1
+ } ;
+
+static yyconst flex_int16_t yy_base[719] =
+ { 0,
+ 0, 63, 88, 0, 1076, 1075, 1077, 1080, 64, 1080,
+ 1051, 1050, 59, 1049, 58, 60, 58, 1048, 139, 187,
+ 47, 1047, 56, 0, 1034, 121, 110, 137, 138, 134,
+ 163, 1017, 173, 177, 115, 149, 140, 1011, 159, 121,
+ 187, 194, 194, 172, 1022, 171, 249, 240, 1042, 1080,
+ 250, 1080, 1051, 241, 1080, 0, 1080, 1080, 262, 1080,
+ 1080, 1080, 1080, 1080, 1080, 1080, 1080, 1080, 236, 1080,
+ 238, 187, 286, 303, 1080, 0, 0, 1040, 1080, 1080,
+ 1080, 1039, 0, 1080, 1006, 1011, 1004, 1007, 1016, 1015,
+ 1001, 1004, 1016, 35, 1010, 997, 994, 1008, 994, 991,
+
+ 991, 997, 215, 232, 991, 1002, 987, 993, 997, 998,
+ 0, 989, 1000, 234, 995, 975, 226, 979, 993, 983,
+ 119, 976, 234, 989, 991, 973, 969, 977, 974, 963,
+ 972, 256, 970, 976, 971, 974, 962, 965, 967, 245,
+ 970, 961, 974, 227, 967, 1080, 1080, 308, 294, 324,
+ 1080, 952, 965, 956, 967, 329, 0, 338, 0, 368,
+ 1080, 303, 379, 1080, 386, 393, 0, 1080, 1080, 962,
+ 0, 953, 957, 967, 964, 947, 946, 946, 950, 216,
+ 961, 958, 958, 956, 953, 944, 951, 937, 935, 948,
+ 933, 950, 0, 947, 934, 942, 939, 943, 944, 937,
+
+ 934, 922, 921, 935, 938, 935, 922, 929, 919, 320,
+ 925, 928, 918, 926, 914, 918, 909, 924, 914, 905,
+ 924, 907, 905, 916, 905, 900, 898, 912, 897, 899,
+ 896, 908, 907, 910, 288, 901, 895, 884, 331, 903,
+ 905, 893, 885, 889, 901, 884, 0, 400, 410, 427,
+ 1080, 439, 446, 1080, 879, 890, 0, 887, 343, 0,
+ 880, 878, 880, 875, 884, 872, 890, 878, 346, 0,
+ 0, 872, 883, 882, 882, 0, 866, 350, 0, 0,
+ 868, 353, 876, 877, 867, 861, 860, 861, 860, 357,
+ 856, 0, 0, 852, 851, 850, 852, 853, 858, 852,
+
+ 848, 862, 857, 856, 855, 846, 849, 849, 841, 844,
+ 839, 848, 853, 838, 851, 841, 0, 0, 848, 844,
+ 835, 835, 841, 840, 837, 0, 0, 0, 0, 826,
+ 839, 838, 837, 834, 822, 453, 463, 834, 836, 0,
+ 0, 0, 0, 822, 0, 822, 0, 821, 822, 816,
+ 827, 0, 0, 0, 817, 0, 813, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 824, 469, 823, 0,
+ 0, 821, 817, 0, 0, 0, 806, 415, 432, 473,
+ 811, 807, 813, 803, 801, 815, 799, 799, 813, 801,
+ 813, 808, 0, 806, 803, 807, 790, 792, 799, 805,
+
+ 800, 799, 786, 0, 788, 0, 787, 791, 0, 785,
+ 834, 784, 787, 0, 775, 785, 0, 773, 773, 787,
+ 0, 789, 0, 482, 797, 796, 795, 766, 765, 0,
+ 783, 782, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 766, 780, 766, 763, 0, 0, 769, 768,
+ 0, 0, 766, 758, 0, 0, 0, 0, 0, 0,
+ 755, 767, 485, 759, 766, 763, 757, 750, 503, 766,
+ 751, 746, 760, 758, 0, 0, 750, 769, 768, 767,
+ 738, 737, 301, 481, 0, 750, 753, 751, 739, 0,
+ 749, 746, 745, 734, 733, 732, 509, 741, 0, 753,
+
+ 752, 751, 722, 721, 0, 736, 0, 734, 729, 515,
+ 527, 773, 722, 730, 0, 0, 0, 745, 744, 0,
+ 726, 729, 713, 721, 711, 719, 720, 720, 719, 704,
+ 717, 0, 718, 706, 705, 701, 725, 724, 723, 694,
+ 693, 0, 723, 722, 0, 704, 707, 0, 0, 693,
+ 537, 1080, 561, 0, 567, 340, 1080, 0, 690, 689,
+ 699, 699, 686, 701, 684, 699, 694, 0, 0, 0,
+ 0, 679, 0, 0, 0, 700, 389, 700, 689, 692,
+ 676, 675, 685, 685, 675, 529, 589, 474, 683, 671,
+ 669, 668, 679, 0, 682, 678, 680, 676, 662, 669,
+
+ 669, 671, 667, 669, 667, 667, 654, 653, 664, 0,
+ 1080, 531, 1080, 596, 0, 616, 666, 648, 665, 664,
+ 647, 635, 643, 633, 634, 0, 627, 646, 635, 607,
+ 604, 601, 0, 604, 603, 586, 533, 572, 580, 564,
+ 563, 0, 0, 564, 0, 540, 554, 552, 516, 530,
+ 505, 486, 453, 450, 0, 461, 443, 0, 0, 0,
+ 0, 0, 400, 406, 385, 0, 0, 0, 0, 343,
+ 389, 319, 267, 249, 487, 341, 235, 0, 200, 0,
+ 507, 498, 184, 157, 150, 564, 559, 136, 565, 591,
+ 1080, 593, 550, 112, 594, 1080, 569, 576, 0, 123,
+
+ 619, 621, 637, 1080, 638, 1080, 1080, 648, 653, 658,
+ 663, 665, 667, 673, 680, 685, 690, 695
+ } ;
+
+static yyconst flex_int16_t yy_def[719] =
+ { 0,
+ 707, 1, 707, 3, 708, 708, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 709, 707, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 710, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 711, 707,
+ 712, 19, 707, 707, 707, 713, 20, 707, 707, 707,
+ 707, 707, 709, 707, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 714, 707, 710, 707,
+ 707, 712, 707, 707, 707, 707, 713, 707, 707, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 707, 707, 707, 707, 714, 707, 707, 707,
+ 707, 707, 707, 707, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 707, 707, 707, 707, 707, 707, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 707,
+ 707, 707, 707, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 707, 707, 707,
+ 707, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+
+ 709, 709, 709, 709, 709, 709, 709, 709, 707, 715,
+ 707, 707, 707, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 707,
+ 707, 707, 707, 716, 707, 707, 707, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 707, 717, 707, 716, 707, 707,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 707, 707, 707, 707, 718, 707, 707, 707, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 718, 707, 707, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 709,
+ 709, 709, 709, 709, 709, 707, 707, 709, 709, 709,
+ 709, 709, 709, 709, 709, 709, 709, 709, 709, 707,
+ 707, 709, 709, 709, 707, 707, 707, 709, 709, 709,
+ 707, 707, 707, 709, 707, 707, 707, 709, 707, 707,
+ 707, 707, 707, 709, 707, 707, 707, 707, 709, 707,
+
+ 707, 707, 707, 707, 707, 707, 0, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707
+ } ;
+
+static yyconst flex_int16_t yy_nxt[1145] =
+ { 0,
+ 8, 9, 10, 9, 11, 8, 12, 13, 8, 8,
+ 14, 15, 16, 17, 18, 19, 20, 20, 20, 20,
+ 20, 20, 8, 21, 22, 23, 24, 24, 24, 24,
+ 24, 24, 24, 24, 24, 24, 25, 24, 26, 27,
+ 28, 29, 30, 31, 32, 33, 34, 24, 24, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
+ 24, 24, 24, 46, 47, 59, 62, 59, 48, 65,
+ 78, 79, 67, 69, 69, 69, 69, 69, 69, 69,
+ 81, 82, 66, 63, 68, 179, 180, 49, 50, 51,
+ 52, 51, 50, 50, 50, 50, 50, 50, 50, 50,
+
+ 50, 50, 53, 50, 54, 54, 54, 54, 54, 54,
+ 55, 50, 50, 50, 56, 56, 56, 56, 56, 56,
+ 56, 56, 56, 56, 50, 56, 56, 56, 56, 56,
+ 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
+ 56, 56, 56, 56, 56, 56, 56, 56, 56, 56,
+ 56, 50, 71, 116, 72, 72, 72, 72, 72, 72,
+ 73, 85, 88, 126, 89, 213, 702, 117, 90, 74,
+ 75, 699, 214, 127, 76, 91, 86, 87, 120, 92,
+ 95, 74, 75, 99, 96, 100, 93, 118, 694, 94,
+ 97, 119, 121, 689, 101, 146, 98, 123, 688, 76,
+
+ 71, 102, 77, 77, 77, 77, 77, 77, 77, 103,
+ 142, 108, 104, 124, 143, 105, 125, 74, 75, 109,
+ 111, 106, 707, 112, 144, 128, 687, 113, 114, 74,
+ 75, 110, 129, 130, 147, 115, 135, 131, 684, 136,
+ 139, 150, 151, 132, 133, 140, 134, 707, 137, 141,
+ 148, 156, 59, 156, 149, 138, 158, 158, 158, 158,
+ 158, 158, 158, 59, 189, 59, 160, 161, 163, 164,
+ 191, 264, 265, 240, 216, 190, 241, 208, 160, 161,
+ 163, 164, 152, 201, 192, 209, 202, 203, 217, 153,
+ 204, 235, 205, 154, 226, 150, 151, 683, 155, 71,
+
+ 236, 73, 73, 73, 73, 73, 73, 73, 680, 148,
+ 227, 59, 679, 149, 165, 165, 74, 75, 166, 166,
+ 166, 166, 166, 166, 166, 150, 151, 523, 74, 75,
+ 156, 321, 156, 250, 251, 524, 152, 294, 295, 296,
+ 322, 556, 681, 153, 675, 250, 251, 154, 326, 327,
+ 328, 676, 155, 158, 158, 158, 158, 158, 158, 158,
+ 341, 342, 343, 352, 353, 354, 152, 360, 361, 362,
+ 364, 365, 366, 153, 374, 375, 376, 154, 678, 248,
+ 248, 589, 155, 249, 249, 249, 249, 249, 249, 249,
+ 252, 252, 590, 682, 253, 253, 253, 253, 253, 253,
+
+ 253, 166, 166, 166, 166, 166, 166, 166, 166, 166,
+ 166, 166, 166, 166, 166, 249, 249, 249, 249, 249,
+ 249, 249, 602, 603, 254, 249, 249, 249, 249, 249,
+ 249, 249, 434, 435, 436, 677, 254, 674, 336, 336,
+ 673, 161, 337, 337, 337, 337, 337, 337, 337, 437,
+ 438, 439, 672, 161, 253, 253, 253, 253, 253, 253,
+ 253, 253, 253, 253, 253, 253, 253, 253, 337, 337,
+ 337, 337, 337, 337, 337, 551, 552, 164, 337, 337,
+ 337, 337, 337, 337, 337, 425, 426, 427, 675, 164,
+ 440, 441, 442, 671, 251, 676, 428, 429, 478, 479,
+
+ 480, 500, 501, 502, 469, 670, 251, 525, 681, 481,
+ 482, 669, 503, 504, 668, 526, 551, 552, 510, 511,
+ 511, 511, 511, 511, 511, 537, 538, 539, 551, 552,
+ 612, 613, 612, 613, 612, 613, 540, 541, 551, 552,
+ 667, 685, 555, 555, 555, 555, 555, 555, 555, 686,
+ 554, 697, 586, 587, 587, 587, 587, 587, 587, 682,
+ 692, 666, 551, 552, 615, 690, 695, 693, 551, 552,
+ 697, 665, 664, 691, 696, 554, 553, 553, 553, 553,
+ 553, 553, 555, 555, 555, 555, 555, 555, 555, 615,
+ 612, 613, 690, 663, 692, 695, 662, 612, 613, 661,
+
+ 691, 693, 698, 696, 616, 616, 616, 616, 616, 616,
+ 616, 614, 614, 614, 614, 614, 614, 612, 613, 700,
+ 703, 698, 705, 660, 659, 658, 657, 701, 704, 656,
+ 706, 616, 616, 616, 616, 616, 616, 616, 703, 705,
+ 655, 654, 653, 652, 651, 650, 704, 706, 57, 57,
+ 57, 57, 57, 57, 57, 57, 83, 83, 83, 83,
+ 83, 159, 159, 159, 159, 159, 69, 69, 162, 162,
+ 167, 167, 167, 247, 247, 649, 247, 247, 247, 247,
+ 247, 553, 553, 553, 648, 647, 646, 553, 588, 588,
+ 588, 614, 614, 614, 645, 644, 643, 614, 637, 637,
+
+ 637, 642, 641, 640, 639, 638, 636, 635, 634, 633,
+ 632, 631, 630, 629, 628, 627, 626, 625, 624, 623,
+ 622, 621, 620, 619, 618, 617, 611, 610, 609, 608,
+ 607, 606, 605, 604, 601, 600, 599, 598, 597, 596,
+ 595, 594, 593, 592, 591, 585, 584, 583, 582, 581,
+ 580, 579, 578, 577, 576, 575, 574, 573, 572, 571,
+ 570, 569, 568, 567, 566, 565, 564, 563, 562, 561,
+ 560, 559, 558, 557, 556, 550, 549, 548, 547, 546,
+ 545, 544, 543, 542, 536, 535, 534, 533, 532, 531,
+ 530, 529, 528, 527, 522, 521, 520, 519, 518, 517,
+
+ 516, 515, 514, 513, 512, 509, 508, 507, 506, 505,
+ 499, 498, 497, 496, 495, 494, 493, 492, 491, 490,
+ 489, 488, 487, 486, 485, 484, 483, 477, 476, 475,
+ 474, 473, 472, 471, 470, 469, 468, 467, 466, 465,
+ 464, 463, 462, 461, 460, 459, 458, 457, 456, 455,
+ 454, 453, 452, 451, 450, 449, 448, 447, 446, 445,
+ 444, 443, 433, 432, 431, 430, 424, 423, 422, 421,
+ 420, 419, 418, 417, 416, 415, 414, 413, 412, 411,
+ 410, 409, 408, 407, 406, 405, 404, 403, 402, 401,
+ 400, 399, 398, 397, 396, 395, 394, 393, 392, 391,
+
+ 390, 389, 388, 387, 386, 385, 384, 383, 382, 381,
+ 380, 379, 378, 377, 373, 372, 371, 370, 369, 368,
+ 367, 363, 359, 358, 357, 356, 355, 351, 350, 349,
+ 348, 347, 346, 345, 344, 340, 339, 338, 335, 334,
+ 333, 332, 331, 330, 329, 325, 324, 323, 320, 319,
+ 318, 317, 316, 315, 314, 313, 312, 311, 310, 309,
+ 308, 307, 306, 305, 304, 303, 302, 301, 300, 299,
+ 298, 297, 293, 292, 291, 290, 289, 288, 287, 286,
+ 285, 284, 283, 282, 281, 280, 279, 278, 277, 276,
+ 275, 274, 273, 272, 271, 270, 269, 268, 267, 266,
+
+ 263, 262, 261, 260, 259, 258, 257, 256, 255, 246,
+ 245, 244, 243, 242, 239, 238, 237, 234, 233, 232,
+ 231, 230, 229, 228, 225, 224, 223, 222, 221, 220,
+ 219, 218, 215, 212, 211, 210, 207, 206, 200, 199,
+ 198, 197, 196, 195, 194, 193, 188, 187, 186, 185,
+ 184, 183, 182, 181, 178, 177, 176, 175, 174, 173,
+ 172, 171, 170, 169, 168, 157, 80, 145, 122, 107,
+ 84, 80, 70, 64, 61, 60, 707, 58, 58, 7,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707
+ } ;
+
+static yyconst flex_int16_t yy_chk[1145] =
+ { 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 2, 9, 13, 9, 2, 15,
+ 21, 21, 16, 17, 17, 17, 17, 17, 17, 17,
+ 23, 23, 15, 13, 16, 94, 94, 2, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 19, 35, 19, 19, 19, 19, 19, 19,
+ 19, 26, 27, 40, 27, 121, 700, 35, 27, 19,
+ 19, 694, 121, 40, 19, 28, 26, 26, 37, 28,
+ 29, 19, 19, 30, 29, 30, 28, 36, 688, 28,
+ 29, 36, 37, 685, 30, 46, 29, 39, 684, 19,
+
+ 20, 31, 20, 20, 20, 20, 20, 20, 20, 31,
+ 44, 33, 31, 39, 44, 31, 39, 20, 20, 33,
+ 34, 31, 72, 34, 44, 41, 683, 34, 34, 20,
+ 20, 33, 41, 41, 46, 34, 42, 41, 679, 42,
+ 43, 48, 48, 41, 41, 43, 41, 72, 42, 43,
+ 47, 51, 47, 51, 47, 42, 54, 54, 54, 54,
+ 54, 54, 54, 59, 103, 59, 69, 69, 71, 71,
+ 104, 180, 180, 144, 123, 103, 144, 117, 69, 69,
+ 71, 71, 48, 114, 104, 117, 114, 114, 123, 48,
+ 114, 140, 114, 48, 132, 149, 149, 677, 48, 73,
+
+ 140, 73, 73, 73, 73, 73, 73, 73, 674, 148,
+ 132, 148, 673, 148, 74, 74, 73, 73, 74, 74,
+ 74, 74, 74, 74, 74, 150, 150, 483, 73, 73,
+ 156, 235, 156, 162, 162, 483, 149, 210, 210, 210,
+ 235, 556, 676, 149, 670, 162, 162, 149, 239, 239,
+ 239, 670, 149, 158, 158, 158, 158, 158, 158, 158,
+ 259, 259, 259, 269, 269, 269, 150, 278, 278, 278,
+ 282, 282, 282, 150, 290, 290, 290, 150, 672, 160,
+ 160, 556, 150, 160, 160, 160, 160, 160, 160, 160,
+ 163, 163, 556, 676, 163, 163, 163, 163, 163, 163,
+
+ 163, 165, 165, 165, 165, 165, 165, 165, 166, 166,
+ 166, 166, 166, 166, 166, 248, 248, 248, 248, 248,
+ 248, 248, 577, 577, 166, 249, 249, 249, 249, 249,
+ 249, 249, 378, 378, 378, 671, 166, 665, 250, 250,
+ 664, 249, 250, 250, 250, 250, 250, 250, 250, 379,
+ 379, 379, 663, 249, 252, 252, 252, 252, 252, 252,
+ 252, 253, 253, 253, 253, 253, 253, 253, 336, 336,
+ 336, 336, 336, 336, 336, 588, 588, 253, 337, 337,
+ 337, 337, 337, 337, 337, 368, 368, 368, 675, 253,
+ 380, 380, 380, 657, 337, 675, 368, 368, 424, 424,
+
+ 424, 463, 463, 463, 469, 656, 337, 484, 681, 424,
+ 424, 654, 463, 463, 653, 484, 510, 510, 469, 469,
+ 469, 469, 469, 469, 469, 497, 497, 497, 511, 511,
+ 586, 586, 612, 612, 637, 637, 497, 497, 551, 551,
+ 652, 682, 511, 511, 511, 511, 511, 511, 511, 682,
+ 510, 693, 551, 551, 551, 551, 551, 551, 551, 681,
+ 687, 651, 553, 553, 586, 686, 689, 687, 555, 555,
+ 697, 650, 649, 686, 689, 510, 553, 553, 553, 553,
+ 553, 553, 555, 555, 555, 555, 555, 555, 555, 586,
+ 587, 587, 690, 648, 692, 695, 647, 614, 614, 646,
+
+ 690, 692, 693, 695, 587, 587, 587, 587, 587, 587,
+ 587, 614, 614, 614, 614, 614, 614, 616, 616, 698,
+ 701, 697, 702, 644, 641, 640, 639, 698, 701, 638,
+ 702, 616, 616, 616, 616, 616, 616, 616, 703, 705,
+ 636, 635, 634, 632, 631, 630, 703, 705, 708, 708,
+ 708, 708, 708, 708, 708, 708, 709, 709, 709, 709,
+ 709, 710, 710, 710, 710, 710, 711, 711, 712, 712,
+ 713, 713, 713, 714, 714, 629, 714, 714, 714, 714,
+ 714, 715, 715, 715, 628, 627, 625, 715, 716, 716,
+ 716, 717, 717, 717, 624, 623, 622, 717, 718, 718,
+
+ 718, 621, 620, 619, 618, 617, 609, 608, 607, 606,
+ 605, 604, 603, 602, 601, 600, 599, 598, 597, 596,
+ 595, 593, 592, 591, 590, 589, 585, 584, 583, 582,
+ 581, 580, 579, 578, 576, 572, 567, 566, 565, 564,
+ 563, 562, 561, 560, 559, 550, 547, 546, 544, 543,
+ 541, 540, 539, 538, 537, 536, 535, 534, 533, 531,
+ 530, 529, 528, 527, 526, 525, 524, 523, 522, 521,
+ 519, 518, 514, 513, 512, 509, 508, 506, 504, 503,
+ 502, 501, 500, 498, 496, 495, 494, 493, 492, 491,
+ 489, 488, 487, 486, 482, 481, 480, 479, 478, 477,
+
+ 474, 473, 472, 471, 470, 468, 467, 466, 465, 464,
+ 462, 461, 454, 453, 450, 449, 446, 445, 444, 443,
+ 432, 431, 429, 428, 427, 426, 425, 422, 420, 419,
+ 418, 416, 415, 413, 412, 411, 410, 408, 407, 405,
+ 403, 402, 401, 400, 399, 398, 397, 396, 395, 394,
+ 392, 391, 390, 389, 388, 387, 386, 385, 384, 383,
+ 382, 381, 377, 373, 372, 369, 367, 357, 355, 351,
+ 350, 349, 348, 346, 344, 339, 338, 335, 334, 333,
+ 332, 331, 330, 325, 324, 323, 322, 321, 320, 319,
+ 316, 315, 314, 313, 312, 311, 310, 309, 308, 307,
+
+ 306, 305, 304, 303, 302, 301, 300, 299, 298, 297,
+ 296, 295, 294, 291, 289, 288, 287, 286, 285, 284,
+ 283, 281, 277, 275, 274, 273, 272, 268, 267, 266,
+ 265, 264, 263, 262, 261, 258, 256, 255, 246, 245,
+ 244, 243, 242, 241, 240, 238, 237, 236, 234, 233,
+ 232, 231, 230, 229, 228, 227, 226, 225, 224, 223,
+ 222, 221, 220, 219, 218, 217, 216, 215, 214, 213,
+ 212, 211, 209, 208, 207, 206, 205, 204, 203, 202,
+ 201, 200, 199, 198, 197, 196, 195, 194, 192, 191,
+ 190, 189, 188, 187, 186, 185, 184, 183, 182, 181,
+
+ 179, 178, 177, 176, 175, 174, 173, 172, 170, 155,
+ 154, 153, 152, 145, 143, 142, 141, 139, 138, 137,
+ 136, 135, 134, 133, 131, 130, 129, 128, 127, 126,
+ 125, 124, 122, 120, 119, 118, 116, 115, 113, 112,
+ 110, 109, 108, 107, 106, 105, 102, 101, 100, 99,
+ 98, 97, 96, 95, 93, 92, 91, 90, 89, 88,
+ 87, 86, 85, 82, 78, 53, 49, 45, 38, 32,
+ 25, 22, 18, 14, 12, 11, 7, 6, 5, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707, 707, 707, 707, 707, 707, 707,
+ 707, 707, 707, 707
+ } ;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+#line 1 "glsl_lexer.lpp"
+#line 2 "glsl_lexer.lpp"
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <ctype.h>
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_parser.h"
+
+#define YY_USER_ACTION \
+ do { \
+ yylloc->source = 0; \
+ yylloc->first_column = yycolumn + 1; \
+ yylloc->first_line = yylineno + 1; \
+ yycolumn += yyleng; \
+ } while(0);
+
+#define YY_USER_INIT yylineno = 0; yycolumn = 0;
+
+#define TOKEN_OR_IDENTIFIER(version, token) \
+ do { \
+ if (yyextra->language_version >= version) { \
+ return token; \
+ } else { \
+ yylval->identifier = strdup(yytext); \
+ return IDENTIFIER; \
+ } \
+ } while (0)
+
+/* Handle reserved words in GLSL ES (version 100) */
+#define TOKEN_OR_IDENTIFIER_ES(version, token) \
+ do { \
+ if (yyextra->es_shader) { \
+ return token; \
+ } else { \
+ TOKEN_OR_IDENTIFIER(version, token); \
+ } \
+ } while (0)
+
+#define RESERVED_WORD(version, token) \
+ do { \
+ if (yyextra->language_version >= version) { \
+ return token; \
+ } else { \
+ _mesa_glsl_error(yylloc, yyextra, \
+ "Illegal use of reserved word `%s'", yytext); \
+ return ERROR_TOK; \
+ } \
+ } while (0)
+
+#line 990 "glsl_lexer.cpp"
+
+#define INITIAL 0
+#define PP 1
+#define PRAGMA 2
+
+#define YY_EXTRA_TYPE struct _mesa_glsl_parse_state *
+
+/* Holds the entire state of the reentrant scanner. */
+struct yyguts_t
+ {
+
+ /* User-defined. Not touched by flex. */
+ YY_EXTRA_TYPE yyextra_r;
+
+ /* The rest are the same as the globals declared in the non-reentrant scanner. */
+ FILE *yyin_r, *yyout_r;
+ size_t yy_buffer_stack_top; /**< index of top of stack. */
+ size_t yy_buffer_stack_max; /**< capacity of stack. */
+ YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
+ char yy_hold_char;
+ int yy_n_chars;
+ int yyleng_r;
+ char *yy_c_buf_p;
+ int yy_init;
+ int yy_start;
+ int yy_did_buffer_switch_on_eof;
+ int yy_start_stack_ptr;
+ int yy_start_stack_depth;
+ int *yy_start_stack;
+ yy_state_type yy_last_accepting_state;
+ char* yy_last_accepting_cpos;
+
+ int yylineno_r;
+ int yy_flex_debug_r;
+
+ char *yytext_r;
+ int yy_more_flag;
+ int yy_more_len;
+
+ YYSTYPE * yylval_r;
+
+ YYLTYPE * yylloc_r;
+
+ }; /* end struct yyguts_t */
+
+static int yy_init_globals (yyscan_t yyscanner );
+
+ /* This must go here because YYSTYPE and YYLTYPE are included
+ * from bison output in section 1.*/
+ # define yylval yyg->yylval_r
+
+ # define yylloc yyg->yylloc_r
+
+int _mesa_glsl_lex_init (yyscan_t* scanner);
+
+int _mesa_glsl_lex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner);
+
+/* Accessor methods to globals.
+ These are made visible to non-reentrant scanners for convenience. */
+
+int _mesa_glsl_lex_destroy (yyscan_t yyscanner );
+
+int _mesa_glsl_get_debug (yyscan_t yyscanner );
+
+void _mesa_glsl_set_debug (int debug_flag ,yyscan_t yyscanner );
+
+YY_EXTRA_TYPE _mesa_glsl_get_extra (yyscan_t yyscanner );
+
+void _mesa_glsl_set_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner );
+
+FILE *_mesa_glsl_get_in (yyscan_t yyscanner );
+
+void _mesa_glsl_set_in (FILE * in_str ,yyscan_t yyscanner );
+
+FILE *_mesa_glsl_get_out (yyscan_t yyscanner );
+
+void _mesa_glsl_set_out (FILE * out_str ,yyscan_t yyscanner );
+
+int _mesa_glsl_get_leng (yyscan_t yyscanner );
+
+char *_mesa_glsl_get_text (yyscan_t yyscanner );
+
+int _mesa_glsl_get_lineno (yyscan_t yyscanner );
+
+void _mesa_glsl_set_lineno (int line_number ,yyscan_t yyscanner );
+
+YYSTYPE * _mesa_glsl_get_lval (yyscan_t yyscanner );
+
+void _mesa_glsl_set_lval (YYSTYPE * yylval_param ,yyscan_t yyscanner );
+
+ YYLTYPE *_mesa_glsl_get_lloc (yyscan_t yyscanner );
+
+ void _mesa_glsl_set_lloc (YYLTYPE * yylloc_param ,yyscan_t yyscanner );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int _mesa_glsl_wrap (yyscan_t yyscanner );
+#else
+extern int _mesa_glsl_wrap (yyscan_t yyscanner );
+#endif
+#endif
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int ,yyscan_t yyscanner);
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (yyscan_t yyscanner );
+#else
+static int input (yyscan_t yyscanner );
+#endif
+
+#endif
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO fwrite( yytext, yyleng, 1, yyout )
+#endif
+
+/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+ { \
+ int c = '*'; \
+ int n; \
+ for ( n = 0; n < max_size && \
+ (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
+ buf[n] = (char) c; \
+ if ( c == '\n' ) \
+ buf[n++] = (char) c; \
+ if ( c == EOF && ferror( yyin ) ) \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ result = n; \
+ } \
+ else \
+ { \
+ errno=0; \
+ while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
+ { \
+ if( errno != EINTR) \
+ { \
+ YY_FATAL_ERROR( "input in flex scanner failed" ); \
+ break; \
+ } \
+ errno=0; \
+ clearerr(yyin); \
+ } \
+ }\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg , yyscanner)
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int _mesa_glsl_lex \
+ (YYSTYPE * yylval_param,YYLTYPE * yylloc_param ,yyscan_t yyscanner);
+
+#define YY_DECL int _mesa_glsl_lex \
+ (YYSTYPE * yylval_param, YYLTYPE * yylloc_param , yyscan_t yyscanner)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after yytext and yyleng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+#define YY_RULE_SETUP \
+ if ( yyleng > 0 ) \
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
+ (yytext[yyleng - 1] == '\n'); \
+ YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp, *yy_bp;
+ register int yy_act;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+#line 86 "glsl_lexer.lpp"
+
+
+#line 1227 "glsl_lexer.cpp"
+
+ yylval = yylval_param;
+
+ yylloc = yylloc_param;
+
+ if ( !yyg->yy_init )
+ {
+ yyg->yy_init = 1;
+
+#ifdef YY_USER_INIT
+ YY_USER_INIT;
+#endif
+
+ if ( ! yyg->yy_start )
+ yyg->yy_start = 1; /* first start state */
+
+ if ( ! yyin )
+ yyin = stdin;
+
+ if ( ! yyout )
+ yyout = stdout;
+
+ if ( ! YY_CURRENT_BUFFER ) {
+ _mesa_glsl_ensure_buffer_stack (yyscanner);
+ YY_CURRENT_BUFFER_LVALUE =
+ _mesa_glsl__create_buffer(yyin,YY_BUF_SIZE ,yyscanner);
+ }
+
+ _mesa_glsl__load_buffer_state(yyscanner );
+ }
+
+ while ( 1 ) /* loops until end-of-file is reached */
+ {
+ yy_cp = yyg->yy_c_buf_p;
+
+ /* Support of yytext. */
+ *yy_cp = yyg->yy_hold_char;
+
+ /* yy_bp points to the position in yy_ch_buf of the start of
+ * the current run.
+ */
+ yy_bp = yy_cp;
+
+ yy_current_state = yyg->yy_start;
+ yy_current_state += YY_AT_BOL();
+yy_match:
+ do
+ {
+ register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
+ if ( yy_accept[yy_current_state] )
+ {
+ yyg->yy_last_accepting_state = yy_current_state;
+ yyg->yy_last_accepting_cpos = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 708 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ ++yy_cp;
+ }
+ while ( yy_current_state != 707 );
+ yy_cp = yyg->yy_last_accepting_cpos;
+ yy_current_state = yyg->yy_last_accepting_state;
+
+yy_find_action:
+ yy_act = yy_accept[yy_current_state];
+
+ YY_DO_BEFORE_ACTION;
+
+do_action: /* This label is used only to access EOF actions. */
+
+ switch ( yy_act )
+ { /* beginning of action switch */
+ case 0: /* must back up */
+ /* undo the effects of YY_DO_BEFORE_ACTION */
+ *yy_cp = yyg->yy_hold_char;
+ yy_cp = yyg->yy_last_accepting_cpos;
+ yy_current_state = yyg->yy_last_accepting_state;
+ goto yy_find_action;
+
+case 1:
+YY_RULE_SETUP
+#line 88 "glsl_lexer.lpp"
+;
+ YY_BREAK
+/* Preprocessor tokens. */
+case 2:
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */
+yyg->yy_c_buf_p = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up yytext again */
+YY_RULE_SETUP
+#line 91 "glsl_lexer.lpp"
+;
+ YY_BREAK
+case 3:
+YY_RULE_SETUP
+#line 92 "glsl_lexer.lpp"
+{ BEGIN PP; return VERSION; }
+ YY_BREAK
+case 4:
+YY_RULE_SETUP
+#line 93 "glsl_lexer.lpp"
+{ BEGIN PP; return EXTENSION; }
+ YY_BREAK
+case 5:
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */
+yyg->yy_c_buf_p = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up yytext again */
+YY_RULE_SETUP
+#line 94 "glsl_lexer.lpp"
+{
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+ yylloc->source = strtol(ptr, NULL, 0);
+ }
+ YY_BREAK
+case 6:
+*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */
+yyg->yy_c_buf_p = yy_cp -= 1;
+YY_DO_BEFORE_ACTION; /* set up yytext again */
+YY_RULE_SETUP
+#line 109 "glsl_lexer.lpp"
+{
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+ }
+ YY_BREAK
+case 7:
+YY_RULE_SETUP
+#line 123 "glsl_lexer.lpp"
+{
+ BEGIN PP;
+ return PRAGMA_DEBUG_ON;
+ }
+ YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 127 "glsl_lexer.lpp"
+{
+ BEGIN PP;
+ return PRAGMA_DEBUG_OFF;
+ }
+ YY_BREAK
+case 9:
+YY_RULE_SETUP
+#line 131 "glsl_lexer.lpp"
+{
+ BEGIN PP;
+ return PRAGMA_OPTIMIZE_ON;
+ }
+ YY_BREAK
+case 10:
+YY_RULE_SETUP
+#line 135 "glsl_lexer.lpp"
+{
+ BEGIN PP;
+ return PRAGMA_OPTIMIZE_OFF;
+ }
+ YY_BREAK
+case 11:
+YY_RULE_SETUP
+#line 139 "glsl_lexer.lpp"
+{ BEGIN PRAGMA; }
+ YY_BREAK
+case 12:
+/* rule 12 can match eol */
+YY_RULE_SETUP
+#line 141 "glsl_lexer.lpp"
+{ BEGIN 0; yylineno++; yycolumn = 0; }
+ YY_BREAK
+case 13:
+YY_RULE_SETUP
+#line 142 "glsl_lexer.lpp"
+{ }
+ YY_BREAK
+case 14:
+YY_RULE_SETUP
+#line 144 "glsl_lexer.lpp"
+{ }
+ YY_BREAK
+case 15:
+YY_RULE_SETUP
+#line 145 "glsl_lexer.lpp"
+{ }
+ YY_BREAK
+case 16:
+YY_RULE_SETUP
+#line 146 "glsl_lexer.lpp"
+return COLON;
+ YY_BREAK
+case 17:
+YY_RULE_SETUP
+#line 147 "glsl_lexer.lpp"
+{
+ yylval->identifier = strdup(yytext);
+ return IDENTIFIER;
+ }
+ YY_BREAK
+case 18:
+YY_RULE_SETUP
+#line 151 "glsl_lexer.lpp"
+{
+ yylval->n = strtol(yytext, NULL, 10);
+ return INTCONSTANT;
+ }
+ YY_BREAK
+case 19:
+/* rule 19 can match eol */
+YY_RULE_SETUP
+#line 155 "glsl_lexer.lpp"
+{ BEGIN 0; yylineno++; yycolumn = 0; return EOL; }
+ YY_BREAK
+case 20:
+/* rule 20 can match eol */
+YY_RULE_SETUP
+#line 157 "glsl_lexer.lpp"
+{ yylineno++; yycolumn = 0; }
+ YY_BREAK
+case 21:
+YY_RULE_SETUP
+#line 159 "glsl_lexer.lpp"
+return ATTRIBUTE;
+ YY_BREAK
+case 22:
+YY_RULE_SETUP
+#line 160 "glsl_lexer.lpp"
+return CONST_TOK;
+ YY_BREAK
+case 23:
+YY_RULE_SETUP
+#line 161 "glsl_lexer.lpp"
+return BOOL_TOK;
+ YY_BREAK
+case 24:
+YY_RULE_SETUP
+#line 162 "glsl_lexer.lpp"
+return FLOAT_TOK;
+ YY_BREAK
+case 25:
+YY_RULE_SETUP
+#line 163 "glsl_lexer.lpp"
+return INT_TOK;
+ YY_BREAK
+case 26:
+YY_RULE_SETUP
+#line 165 "glsl_lexer.lpp"
+return BREAK;
+ YY_BREAK
+case 27:
+YY_RULE_SETUP
+#line 166 "glsl_lexer.lpp"
+return CONTINUE;
+ YY_BREAK
+case 28:
+YY_RULE_SETUP
+#line 167 "glsl_lexer.lpp"
+return DO;
+ YY_BREAK
+case 29:
+YY_RULE_SETUP
+#line 168 "glsl_lexer.lpp"
+return WHILE;
+ YY_BREAK
+case 30:
+YY_RULE_SETUP
+#line 169 "glsl_lexer.lpp"
+return ELSE;
+ YY_BREAK
+case 31:
+YY_RULE_SETUP
+#line 170 "glsl_lexer.lpp"
+return FOR;
+ YY_BREAK
+case 32:
+YY_RULE_SETUP
+#line 171 "glsl_lexer.lpp"
+return IF;
+ YY_BREAK
+case 33:
+YY_RULE_SETUP
+#line 172 "glsl_lexer.lpp"
+return DISCARD;
+ YY_BREAK
+case 34:
+YY_RULE_SETUP
+#line 173 "glsl_lexer.lpp"
+return RETURN;
+ YY_BREAK
+case 35:
+YY_RULE_SETUP
+#line 175 "glsl_lexer.lpp"
+return BVEC2;
+ YY_BREAK
+case 36:
+YY_RULE_SETUP
+#line 176 "glsl_lexer.lpp"
+return BVEC3;
+ YY_BREAK
+case 37:
+YY_RULE_SETUP
+#line 177 "glsl_lexer.lpp"
+return BVEC4;
+ YY_BREAK
+case 38:
+YY_RULE_SETUP
+#line 178 "glsl_lexer.lpp"
+return IVEC2;
+ YY_BREAK
+case 39:
+YY_RULE_SETUP
+#line 179 "glsl_lexer.lpp"
+return IVEC3;
+ YY_BREAK
+case 40:
+YY_RULE_SETUP
+#line 180 "glsl_lexer.lpp"
+return IVEC4;
+ YY_BREAK
+case 41:
+YY_RULE_SETUP
+#line 181 "glsl_lexer.lpp"
+return VEC2;
+ YY_BREAK
+case 42:
+YY_RULE_SETUP
+#line 182 "glsl_lexer.lpp"
+return VEC3;
+ YY_BREAK
+case 43:
+YY_RULE_SETUP
+#line 183 "glsl_lexer.lpp"
+return VEC4;
+ YY_BREAK
+case 44:
+YY_RULE_SETUP
+#line 184 "glsl_lexer.lpp"
+return MAT2X2;
+ YY_BREAK
+case 45:
+YY_RULE_SETUP
+#line 185 "glsl_lexer.lpp"
+return MAT3X3;
+ YY_BREAK
+case 46:
+YY_RULE_SETUP
+#line 186 "glsl_lexer.lpp"
+return MAT4X4;
+ YY_BREAK
+case 47:
+YY_RULE_SETUP
+#line 187 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT2X2);
+ YY_BREAK
+case 48:
+YY_RULE_SETUP
+#line 188 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT2X3);
+ YY_BREAK
+case 49:
+YY_RULE_SETUP
+#line 189 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT2X4);
+ YY_BREAK
+case 50:
+YY_RULE_SETUP
+#line 190 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT3X2);
+ YY_BREAK
+case 51:
+YY_RULE_SETUP
+#line 191 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT3X3);
+ YY_BREAK
+case 52:
+YY_RULE_SETUP
+#line 192 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT3X4);
+ YY_BREAK
+case 53:
+YY_RULE_SETUP
+#line 193 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT4X2);
+ YY_BREAK
+case 54:
+YY_RULE_SETUP
+#line 194 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT4X3);
+ YY_BREAK
+case 55:
+YY_RULE_SETUP
+#line 195 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, MAT4X4);
+ YY_BREAK
+case 56:
+YY_RULE_SETUP
+#line 197 "glsl_lexer.lpp"
+return IN_TOK;
+ YY_BREAK
+case 57:
+YY_RULE_SETUP
+#line 198 "glsl_lexer.lpp"
+return OUT_TOK;
+ YY_BREAK
+case 58:
+YY_RULE_SETUP
+#line 199 "glsl_lexer.lpp"
+return INOUT_TOK;
+ YY_BREAK
+case 59:
+YY_RULE_SETUP
+#line 200 "glsl_lexer.lpp"
+return UNIFORM;
+ YY_BREAK
+case 60:
+YY_RULE_SETUP
+#line 201 "glsl_lexer.lpp"
+return VARYING;
+ YY_BREAK
+case 61:
+YY_RULE_SETUP
+#line 202 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(120, CENTROID);
+ YY_BREAK
+case 62:
+YY_RULE_SETUP
+#line 203 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, INVARIANT);
+ YY_BREAK
+case 63:
+YY_RULE_SETUP
+#line 205 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(130, FLAT);
+ YY_BREAK
+case 64:
+YY_RULE_SETUP
+#line 206 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, SMOOTH);
+ YY_BREAK
+case 65:
+YY_RULE_SETUP
+#line 207 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, NOPERSPECTIVE);
+ YY_BREAK
+case 66:
+YY_RULE_SETUP
+#line 209 "glsl_lexer.lpp"
+return SAMPLER1D;
+ YY_BREAK
+case 67:
+YY_RULE_SETUP
+#line 210 "glsl_lexer.lpp"
+return SAMPLER2D;
+ YY_BREAK
+case 68:
+YY_RULE_SETUP
+#line 211 "glsl_lexer.lpp"
+return SAMPLER3D;
+ YY_BREAK
+case 69:
+YY_RULE_SETUP
+#line 212 "glsl_lexer.lpp"
+return SAMPLERCUBE;
+ YY_BREAK
+case 70:
+YY_RULE_SETUP
+#line 213 "glsl_lexer.lpp"
+return SAMPLER1DSHADOW;
+ YY_BREAK
+case 71:
+YY_RULE_SETUP
+#line 214 "glsl_lexer.lpp"
+return SAMPLER2DSHADOW;
+ YY_BREAK
+case 72:
+YY_RULE_SETUP
+#line 216 "glsl_lexer.lpp"
+return STRUCT;
+ YY_BREAK
+case 73:
+YY_RULE_SETUP
+#line 217 "glsl_lexer.lpp"
+return VOID_TOK;
+ YY_BREAK
+case 74:
+YY_RULE_SETUP
+#line 219 "glsl_lexer.lpp"
+{
+ if ((yyextra->language_version >= 140)
+ || (yyextra->ARB_fragment_coord_conventions_enable)){
+ return LAYOUT_TOK;
+ } else {
+ yylval->identifier = strdup(yytext);
+ return IDENTIFIER;
+ }
+ }
+ YY_BREAK
+case 75:
+YY_RULE_SETUP
+#line 229 "glsl_lexer.lpp"
+return INC_OP;
+ YY_BREAK
+case 76:
+YY_RULE_SETUP
+#line 230 "glsl_lexer.lpp"
+return DEC_OP;
+ YY_BREAK
+case 77:
+YY_RULE_SETUP
+#line 231 "glsl_lexer.lpp"
+return LE_OP;
+ YY_BREAK
+case 78:
+YY_RULE_SETUP
+#line 232 "glsl_lexer.lpp"
+return GE_OP;
+ YY_BREAK
+case 79:
+YY_RULE_SETUP
+#line 233 "glsl_lexer.lpp"
+return EQ_OP;
+ YY_BREAK
+case 80:
+YY_RULE_SETUP
+#line 234 "glsl_lexer.lpp"
+return NE_OP;
+ YY_BREAK
+case 81:
+YY_RULE_SETUP
+#line 235 "glsl_lexer.lpp"
+return AND_OP;
+ YY_BREAK
+case 82:
+YY_RULE_SETUP
+#line 236 "glsl_lexer.lpp"
+return OR_OP;
+ YY_BREAK
+case 83:
+YY_RULE_SETUP
+#line 237 "glsl_lexer.lpp"
+return XOR_OP;
+ YY_BREAK
+case 84:
+YY_RULE_SETUP
+#line 239 "glsl_lexer.lpp"
+return MUL_ASSIGN;
+ YY_BREAK
+case 85:
+YY_RULE_SETUP
+#line 240 "glsl_lexer.lpp"
+return DIV_ASSIGN;
+ YY_BREAK
+case 86:
+YY_RULE_SETUP
+#line 241 "glsl_lexer.lpp"
+return ADD_ASSIGN;
+ YY_BREAK
+case 87:
+YY_RULE_SETUP
+#line 242 "glsl_lexer.lpp"
+return MOD_ASSIGN;
+ YY_BREAK
+case 88:
+YY_RULE_SETUP
+#line 243 "glsl_lexer.lpp"
+return LEFT_ASSIGN;
+ YY_BREAK
+case 89:
+YY_RULE_SETUP
+#line 244 "glsl_lexer.lpp"
+return RIGHT_ASSIGN;
+ YY_BREAK
+case 90:
+YY_RULE_SETUP
+#line 245 "glsl_lexer.lpp"
+return AND_ASSIGN;
+ YY_BREAK
+case 91:
+YY_RULE_SETUP
+#line 246 "glsl_lexer.lpp"
+return XOR_ASSIGN;
+ YY_BREAK
+case 92:
+YY_RULE_SETUP
+#line 247 "glsl_lexer.lpp"
+return OR_ASSIGN;
+ YY_BREAK
+case 93:
+YY_RULE_SETUP
+#line 248 "glsl_lexer.lpp"
+return SUB_ASSIGN;
+ YY_BREAK
+case 94:
+YY_RULE_SETUP
+#line 250 "glsl_lexer.lpp"
+{
+ yylval->n = strtol(yytext, NULL, 10);
+ return INTCONSTANT;
+ }
+ YY_BREAK
+case 95:
+YY_RULE_SETUP
+#line 254 "glsl_lexer.lpp"
+{
+ yylval->n = strtol(yytext + 2, NULL, 16);
+ return INTCONSTANT;
+ }
+ YY_BREAK
+case 96:
+YY_RULE_SETUP
+#line 258 "glsl_lexer.lpp"
+{
+ yylval->n = strtol(yytext, NULL, 8);
+ return INTCONSTANT;
+ }
+ YY_BREAK
+case 97:
+YY_RULE_SETUP
+#line 263 "glsl_lexer.lpp"
+{
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+ YY_BREAK
+case 98:
+YY_RULE_SETUP
+#line 267 "glsl_lexer.lpp"
+{
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+ YY_BREAK
+case 99:
+YY_RULE_SETUP
+#line 271 "glsl_lexer.lpp"
+{
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+ YY_BREAK
+case 100:
+YY_RULE_SETUP
+#line 275 "glsl_lexer.lpp"
+{
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+ YY_BREAK
+case 101:
+YY_RULE_SETUP
+#line 279 "glsl_lexer.lpp"
+{
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+ YY_BREAK
+case 102:
+YY_RULE_SETUP
+#line 284 "glsl_lexer.lpp"
+{
+ yylval->n = 1;
+ return BOOLCONSTANT;
+ }
+ YY_BREAK
+case 103:
+YY_RULE_SETUP
+#line 288 "glsl_lexer.lpp"
+{
+ yylval->n = 0;
+ return BOOLCONSTANT;
+ }
+ YY_BREAK
+/* Reserved words in GLSL 1.10. */
+case 104:
+YY_RULE_SETUP
+#line 295 "glsl_lexer.lpp"
+RESERVED_WORD(999, ASM);
+ YY_BREAK
+case 105:
+YY_RULE_SETUP
+#line 296 "glsl_lexer.lpp"
+RESERVED_WORD(999, CLASS);
+ YY_BREAK
+case 106:
+YY_RULE_SETUP
+#line 297 "glsl_lexer.lpp"
+RESERVED_WORD(999, UNION);
+ YY_BREAK
+case 107:
+YY_RULE_SETUP
+#line 298 "glsl_lexer.lpp"
+RESERVED_WORD(999, ENUM);
+ YY_BREAK
+case 108:
+YY_RULE_SETUP
+#line 299 "glsl_lexer.lpp"
+RESERVED_WORD(999, TYPEDEF);
+ YY_BREAK
+case 109:
+YY_RULE_SETUP
+#line 300 "glsl_lexer.lpp"
+RESERVED_WORD(999, TEMPLATE);
+ YY_BREAK
+case 110:
+YY_RULE_SETUP
+#line 301 "glsl_lexer.lpp"
+RESERVED_WORD(999, THIS);
+ YY_BREAK
+case 111:
+YY_RULE_SETUP
+#line 302 "glsl_lexer.lpp"
+RESERVED_WORD(999, PACKED_TOK);
+ YY_BREAK
+case 112:
+YY_RULE_SETUP
+#line 303 "glsl_lexer.lpp"
+RESERVED_WORD(999, GOTO);
+ YY_BREAK
+case 113:
+YY_RULE_SETUP
+#line 304 "glsl_lexer.lpp"
+RESERVED_WORD(130, SWITCH);
+ YY_BREAK
+case 114:
+YY_RULE_SETUP
+#line 305 "glsl_lexer.lpp"
+RESERVED_WORD(130, DEFAULT);
+ YY_BREAK
+case 115:
+YY_RULE_SETUP
+#line 306 "glsl_lexer.lpp"
+RESERVED_WORD(999, INLINE_TOK);
+ YY_BREAK
+case 116:
+YY_RULE_SETUP
+#line 307 "glsl_lexer.lpp"
+RESERVED_WORD(999, NOINLINE);
+ YY_BREAK
+case 117:
+YY_RULE_SETUP
+#line 308 "glsl_lexer.lpp"
+RESERVED_WORD(999, VOLATILE);
+ YY_BREAK
+case 118:
+YY_RULE_SETUP
+#line 309 "glsl_lexer.lpp"
+RESERVED_WORD(999, PUBLIC_TOK);
+ YY_BREAK
+case 119:
+YY_RULE_SETUP
+#line 310 "glsl_lexer.lpp"
+RESERVED_WORD(999, STATIC);
+ YY_BREAK
+case 120:
+YY_RULE_SETUP
+#line 311 "glsl_lexer.lpp"
+RESERVED_WORD(999, EXTERN);
+ YY_BREAK
+case 121:
+YY_RULE_SETUP
+#line 312 "glsl_lexer.lpp"
+RESERVED_WORD(999, EXTERNAL);
+ YY_BREAK
+case 122:
+YY_RULE_SETUP
+#line 313 "glsl_lexer.lpp"
+RESERVED_WORD(999, INTERFACE);
+ YY_BREAK
+case 123:
+YY_RULE_SETUP
+#line 314 "glsl_lexer.lpp"
+RESERVED_WORD(999, LONG_TOK);
+ YY_BREAK
+case 124:
+YY_RULE_SETUP
+#line 315 "glsl_lexer.lpp"
+RESERVED_WORD(999, SHORT_TOK);
+ YY_BREAK
+case 125:
+YY_RULE_SETUP
+#line 316 "glsl_lexer.lpp"
+RESERVED_WORD(999, DOUBLE_TOK);
+ YY_BREAK
+case 126:
+YY_RULE_SETUP
+#line 317 "glsl_lexer.lpp"
+RESERVED_WORD(999, HALF);
+ YY_BREAK
+case 127:
+YY_RULE_SETUP
+#line 318 "glsl_lexer.lpp"
+RESERVED_WORD(999, FIXED_TOK);
+ YY_BREAK
+case 128:
+YY_RULE_SETUP
+#line 319 "glsl_lexer.lpp"
+RESERVED_WORD(999, UNSIGNED);
+ YY_BREAK
+case 129:
+YY_RULE_SETUP
+#line 320 "glsl_lexer.lpp"
+RESERVED_WORD(999, INPUT_TOK);
+ YY_BREAK
+case 130:
+YY_RULE_SETUP
+#line 321 "glsl_lexer.lpp"
+RESERVED_WORD(999, OUTPUT);
+ YY_BREAK
+case 131:
+YY_RULE_SETUP
+#line 322 "glsl_lexer.lpp"
+RESERVED_WORD(999, HVEC2);
+ YY_BREAK
+case 132:
+YY_RULE_SETUP
+#line 323 "glsl_lexer.lpp"
+RESERVED_WORD(999, HVEC3);
+ YY_BREAK
+case 133:
+YY_RULE_SETUP
+#line 324 "glsl_lexer.lpp"
+RESERVED_WORD(999, HVEC4);
+ YY_BREAK
+case 134:
+YY_RULE_SETUP
+#line 325 "glsl_lexer.lpp"
+RESERVED_WORD(999, DVEC2);
+ YY_BREAK
+case 135:
+YY_RULE_SETUP
+#line 326 "glsl_lexer.lpp"
+RESERVED_WORD(999, DVEC3);
+ YY_BREAK
+case 136:
+YY_RULE_SETUP
+#line 327 "glsl_lexer.lpp"
+RESERVED_WORD(999, DVEC4);
+ YY_BREAK
+case 137:
+YY_RULE_SETUP
+#line 328 "glsl_lexer.lpp"
+RESERVED_WORD(999, FVEC2);
+ YY_BREAK
+case 138:
+YY_RULE_SETUP
+#line 329 "glsl_lexer.lpp"
+RESERVED_WORD(999, FVEC3);
+ YY_BREAK
+case 139:
+YY_RULE_SETUP
+#line 330 "glsl_lexer.lpp"
+RESERVED_WORD(999, FVEC4);
+ YY_BREAK
+case 140:
+YY_RULE_SETUP
+#line 331 "glsl_lexer.lpp"
+return SAMPLER2DRECT;
+ YY_BREAK
+case 141:
+YY_RULE_SETUP
+#line 332 "glsl_lexer.lpp"
+RESERVED_WORD(999, SAMPLER3DRECT);
+ YY_BREAK
+case 142:
+YY_RULE_SETUP
+#line 333 "glsl_lexer.lpp"
+return SAMPLER2DRECTSHADOW;
+ YY_BREAK
+case 143:
+YY_RULE_SETUP
+#line 334 "glsl_lexer.lpp"
+RESERVED_WORD(999, SIZEOF);
+ YY_BREAK
+case 144:
+YY_RULE_SETUP
+#line 335 "glsl_lexer.lpp"
+RESERVED_WORD(999, CAST);
+ YY_BREAK
+case 145:
+YY_RULE_SETUP
+#line 336 "glsl_lexer.lpp"
+RESERVED_WORD(999, NAMESPACE);
+ YY_BREAK
+case 146:
+YY_RULE_SETUP
+#line 337 "glsl_lexer.lpp"
+RESERVED_WORD(999, USING);
+ YY_BREAK
+/* Additional reserved words in GLSL 1.20. */
+case 147:
+YY_RULE_SETUP
+#line 340 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, LOWP);
+ YY_BREAK
+case 148:
+YY_RULE_SETUP
+#line 341 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, MEDIUMP);
+ YY_BREAK
+case 149:
+YY_RULE_SETUP
+#line 342 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, HIGHP);
+ YY_BREAK
+case 150:
+YY_RULE_SETUP
+#line 343 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, PRECISION);
+ YY_BREAK
+/* Additional reserved words in GLSL 1.30. */
+case 151:
+YY_RULE_SETUP
+#line 346 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, COMMON);
+ YY_BREAK
+case 152:
+YY_RULE_SETUP
+#line 347 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, PARTITION);
+ YY_BREAK
+case 153:
+YY_RULE_SETUP
+#line 348 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, ACTIVE);
+ YY_BREAK
+case 154:
+YY_RULE_SETUP
+#line 349 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(130, SUPERP);
+ YY_BREAK
+case 155:
+YY_RULE_SETUP
+#line 350 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, SAMPLERBUFFER);
+ YY_BREAK
+case 156:
+YY_RULE_SETUP
+#line 351 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, FILTER);
+ YY_BREAK
+case 157:
+YY_RULE_SETUP
+#line 352 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE1D);
+ YY_BREAK
+case 158:
+YY_RULE_SETUP
+#line 353 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE2D);
+ YY_BREAK
+case 159:
+YY_RULE_SETUP
+#line 354 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE3D);
+ YY_BREAK
+case 160:
+YY_RULE_SETUP
+#line 355 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGECUBE);
+ YY_BREAK
+case 161:
+YY_RULE_SETUP
+#line 356 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGE1D);
+ YY_BREAK
+case 162:
+YY_RULE_SETUP
+#line 357 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGE2D);
+ YY_BREAK
+case 163:
+YY_RULE_SETUP
+#line 358 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGE3D);
+ YY_BREAK
+case 164:
+YY_RULE_SETUP
+#line 359 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGECUBE);
+ YY_BREAK
+case 165:
+YY_RULE_SETUP
+#line 360 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGE1D);
+ YY_BREAK
+case 166:
+YY_RULE_SETUP
+#line 361 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGE2D);
+ YY_BREAK
+case 167:
+YY_RULE_SETUP
+#line 362 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGE3D);
+ YY_BREAK
+case 168:
+YY_RULE_SETUP
+#line 363 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGECUBE);
+ YY_BREAK
+case 169:
+YY_RULE_SETUP
+#line 364 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE1DARRAY);
+ YY_BREAK
+case 170:
+YY_RULE_SETUP
+#line 365 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE2DARRAY);
+ YY_BREAK
+case 171:
+YY_RULE_SETUP
+#line 366 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGE1DARRAY);
+ YY_BREAK
+case 172:
+YY_RULE_SETUP
+#line 367 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGE2DARRAY);
+ YY_BREAK
+case 173:
+YY_RULE_SETUP
+#line 368 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGE1DARRAY);
+ YY_BREAK
+case 174:
+YY_RULE_SETUP
+#line 369 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGE2DARRAY);
+ YY_BREAK
+case 175:
+YY_RULE_SETUP
+#line 370 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE1DSHADOW);
+ YY_BREAK
+case 176:
+YY_RULE_SETUP
+#line 371 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGE2DSHADOW);
+ YY_BREAK
+case 177:
+YY_RULE_SETUP
+#line 372 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IMAGEBUFFER);
+ YY_BREAK
+case 178:
+YY_RULE_SETUP
+#line 373 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, IIMAGEBUFFER);
+ YY_BREAK
+case 179:
+YY_RULE_SETUP
+#line 374 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, UIMAGEBUFFER);
+ YY_BREAK
+case 180:
+YY_RULE_SETUP
+#line 375 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER(130, ROW_MAJOR);
+ YY_BREAK
+case 181:
+YY_RULE_SETUP
+#line 377 "glsl_lexer.lpp"
+{
+ struct _mesa_glsl_parse_state *state = yyextra;
+ void *ctx = state;
+ yylval->identifier = talloc_strdup(ctx, yytext);
+ return IDENTIFIER;
+ }
+ YY_BREAK
+case 182:
+YY_RULE_SETUP
+#line 384 "glsl_lexer.lpp"
+{ return yytext[0]; }
+ YY_BREAK
+case 183:
+YY_RULE_SETUP
+#line 386 "glsl_lexer.lpp"
+ECHO;
+ YY_BREAK
+#line 2330 "glsl_lexer.cpp"
+case YY_STATE_EOF(INITIAL):
+case YY_STATE_EOF(PP):
+case YY_STATE_EOF(PRAGMA):
+ yyterminate();
+
+ case YY_END_OF_BUFFER:
+ {
+ /* Amount of text matched not including the EOB char. */
+ int yy_amount_of_matched_text = (int) (yy_cp - yyg->yytext_ptr) - 1;
+
+ /* Undo the effects of YY_DO_BEFORE_ACTION. */
+ *yy_cp = yyg->yy_hold_char;
+ YY_RESTORE_YY_MORE_OFFSET
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+ {
+ /* We're scanning a new file or input source. It's
+ * possible that this happened because the user
+ * just pointed yyin at a new source and called
+ * _mesa_glsl_lex(). If so, then we have to assure
+ * consistency between YY_CURRENT_BUFFER and our
+ * globals. Here is the right place to do so, because
+ * this is the first action (other than possibly a
+ * back-up) that will match for the new input source.
+ */
+ yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+ }
+
+ /* Note that here we test for yy_c_buf_p "<=" to the position
+ * of the first EOB in the buffer, since yy_c_buf_p will
+ * already have been incremented past the NUL character
+ * (since all states make transitions on EOB to the
+ * end-of-buffer state). Contrast this with the test
+ * in input().
+ */
+ if ( yyg->yy_c_buf_p <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
+ { /* This was really a NUL. */
+ yy_state_type yy_next_state;
+
+ yyg->yy_c_buf_p = yyg->yytext_ptr + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( yyscanner );
+
+ /* Okay, we're now positioned to make the NUL
+ * transition. We couldn't have
+ * yy_get_previous_state() go ahead and do it
+ * for us because it doesn't know how to deal
+ * with the possibility of jamming (and we don't
+ * want to build jamming into it because then it
+ * will run more slowly).
+ */
+
+ yy_next_state = yy_try_NUL_trans( yy_current_state , yyscanner);
+
+ yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
+
+ if ( yy_next_state )
+ {
+ /* Consume the NUL. */
+ yy_cp = ++yyg->yy_c_buf_p;
+ yy_current_state = yy_next_state;
+ goto yy_match;
+ }
+
+ else
+ {
+ yy_cp = yyg->yy_last_accepting_cpos;
+ yy_current_state = yyg->yy_last_accepting_state;
+ goto yy_find_action;
+ }
+ }
+
+ else switch ( yy_get_next_buffer( yyscanner ) )
+ {
+ case EOB_ACT_END_OF_FILE:
+ {
+ yyg->yy_did_buffer_switch_on_eof = 0;
+
+ if ( _mesa_glsl_wrap(yyscanner ) )
+ {
+ /* Note: because we've taken care in
+ * yy_get_next_buffer() to have set up
+ * yytext, we can now set up
+ * yy_c_buf_p so that if some total
+ * hoser (like flex itself) wants to
+ * call the scanner after we return the
+ * YY_NULL, it'll still work - another
+ * YY_NULL will get returned.
+ */
+ yyg->yy_c_buf_p = yyg->yytext_ptr + YY_MORE_ADJ;
+
+ yy_act = YY_STATE_EOF(YY_START);
+ goto do_action;
+ }
+
+ else
+ {
+ if ( ! yyg->yy_did_buffer_switch_on_eof )
+ YY_NEW_FILE;
+ }
+ break;
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ yyg->yy_c_buf_p =
+ yyg->yytext_ptr + yy_amount_of_matched_text;
+
+ yy_current_state = yy_get_previous_state( yyscanner );
+
+ yy_cp = yyg->yy_c_buf_p;
+ yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
+ goto yy_match;
+
+ case EOB_ACT_LAST_MATCH:
+ yyg->yy_c_buf_p =
+ &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars];
+
+ yy_current_state = yy_get_previous_state( yyscanner );
+
+ yy_cp = yyg->yy_c_buf_p;
+ yy_bp = yyg->yytext_ptr + YY_MORE_ADJ;
+ goto yy_find_action;
+ }
+ break;
+ }
+
+ default:
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--no action found" );
+ } /* end of action switch */
+ } /* end of scanning one token */
+} /* end of _mesa_glsl_lex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ * EOB_ACT_LAST_MATCH -
+ * EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ * EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+ register char *source = yyg->yytext_ptr;
+ register int number_to_move, i;
+ int ret_val;
+
+ if ( yyg->yy_c_buf_p > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] )
+ YY_FATAL_ERROR(
+ "fatal flex scanner internal error--end of buffer missed" );
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+ { /* Don't try to fill the buffer, so this is an EOF. */
+ if ( yyg->yy_c_buf_p - yyg->yytext_ptr - YY_MORE_ADJ == 1 )
+ {
+ /* We matched a single character, the EOB, so
+ * treat this as a final EOF.
+ */
+ return EOB_ACT_END_OF_FILE;
+ }
+
+ else
+ {
+ /* We matched some text prior to the EOB, first
+ * process it.
+ */
+ return EOB_ACT_LAST_MATCH;
+ }
+ }
+
+ /* Try to read more data. */
+
+ /* First move last chars to start of buffer. */
+ number_to_move = (int) (yyg->yy_c_buf_p - yyg->yytext_ptr) - 1;
+
+ for ( i = 0; i < number_to_move; ++i )
+ *(dest++) = *(source++);
+
+ if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+ /* don't do the read, it's not guaranteed to return an EOF,
+ * just force an EOF
+ */
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars = 0;
+
+ else
+ {
+ int num_to_read =
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+ while ( num_to_read <= 0 )
+ { /* Not enough room in the buffer - grow it. */
+
+ /* just a shorter name for the current buffer */
+ YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
+
+ int yy_c_buf_p_offset =
+ (int) (yyg->yy_c_buf_p - b->yy_ch_buf);
+
+ if ( b->yy_is_our_buffer )
+ {
+ int new_size = b->yy_buf_size * 2;
+
+ if ( new_size <= 0 )
+ b->yy_buf_size += b->yy_buf_size / 8;
+ else
+ b->yy_buf_size *= 2;
+
+ b->yy_ch_buf = (char *)
+ /* Include room in for 2 EOB chars. */
+ _mesa_glsl_realloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ,yyscanner );
+ }
+ else
+ /* Can't grow it, we don't own it. */
+ b->yy_ch_buf = 0;
+
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR(
+ "fatal error - scanner input buffer overflow" );
+
+ yyg->yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+ num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+ number_to_move - 1;
+
+ }
+
+ if ( num_to_read > YY_READ_BUF_SIZE )
+ num_to_read = YY_READ_BUF_SIZE;
+
+ /* Read in more data. */
+ YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+ yyg->yy_n_chars, (size_t) num_to_read );
+
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
+ }
+
+ if ( yyg->yy_n_chars == 0 )
+ {
+ if ( number_to_move == YY_MORE_ADJ )
+ {
+ ret_val = EOB_ACT_END_OF_FILE;
+ _mesa_glsl_restart(yyin ,yyscanner);
+ }
+
+ else
+ {
+ ret_val = EOB_ACT_LAST_MATCH;
+ YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+ YY_BUFFER_EOF_PENDING;
+ }
+ }
+
+ else
+ ret_val = EOB_ACT_CONTINUE_SCAN;
+
+ if ((yy_size_t) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+ /* Extend the array by 50%, plus the number we really need. */
+ yy_size_t new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) _mesa_glsl_realloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ,yyscanner );
+ if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
+ }
+
+ yyg->yy_n_chars += number_to_move;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR;
+ YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
+
+ yyg->yytext_ptr = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+ return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+ static yy_state_type yy_get_previous_state (yyscan_t yyscanner)
+{
+ register yy_state_type yy_current_state;
+ register char *yy_cp;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ yy_current_state = yyg->yy_start;
+ yy_current_state += YY_AT_BOL();
+
+ for ( yy_cp = yyg->yytext_ptr + YY_MORE_ADJ; yy_cp < yyg->yy_c_buf_p; ++yy_cp )
+ {
+ register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
+ if ( yy_accept[yy_current_state] )
+ {
+ yyg->yy_last_accepting_state = yy_current_state;
+ yyg->yy_last_accepting_cpos = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 708 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ }
+
+ return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ * next_state = yy_try_NUL_trans( current_state );
+ */
+ static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state , yyscan_t yyscanner)
+{
+ register int yy_is_jam;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner; /* This var may be unused depending upon options. */
+ register char *yy_cp = yyg->yy_c_buf_p;
+
+ register YY_CHAR yy_c = 1;
+ if ( yy_accept[yy_current_state] )
+ {
+ yyg->yy_last_accepting_state = yy_current_state;
+ yyg->yy_last_accepting_cpos = yy_cp;
+ }
+ while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+ {
+ yy_current_state = (int) yy_def[yy_current_state];
+ if ( yy_current_state >= 708 )
+ yy_c = yy_meta[(unsigned int) yy_c];
+ }
+ yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+ yy_is_jam = (yy_current_state == 707);
+
+ return yy_is_jam ? 0 : yy_current_state;
+}
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+ static int yyinput (yyscan_t yyscanner)
+#else
+ static int input (yyscan_t yyscanner)
+#endif
+
+{
+ int c;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ *yyg->yy_c_buf_p = yyg->yy_hold_char;
+
+ if ( *yyg->yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
+ {
+ /* yy_c_buf_p now points to the character we want to return.
+ * If this occurs *before* the EOB characters, then it's a
+ * valid NUL; if not, then we've hit the end of the buffer.
+ */
+ if ( yyg->yy_c_buf_p < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] )
+ /* This was really a NUL. */
+ *yyg->yy_c_buf_p = '\0';
+
+ else
+ { /* need more input */
+ int offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
+ ++yyg->yy_c_buf_p;
+
+ switch ( yy_get_next_buffer( yyscanner ) )
+ {
+ case EOB_ACT_LAST_MATCH:
+ /* This happens because yy_g_n_b()
+ * sees that we've accumulated a
+ * token and flags that we need to
+ * try matching the token before
+ * proceeding. But for input(),
+ * there's no matching to consider.
+ * So convert the EOB_ACT_LAST_MATCH
+ * to EOB_ACT_END_OF_FILE.
+ */
+
+ /* Reset buffer status. */
+ _mesa_glsl_restart(yyin ,yyscanner);
+
+ /*FALLTHROUGH*/
+
+ case EOB_ACT_END_OF_FILE:
+ {
+ if ( _mesa_glsl_wrap(yyscanner ) )
+ return EOF;
+
+ if ( ! yyg->yy_did_buffer_switch_on_eof )
+ YY_NEW_FILE;
+#ifdef __cplusplus
+ return yyinput(yyscanner);
+#else
+ return input(yyscanner);
+#endif
+ }
+
+ case EOB_ACT_CONTINUE_SCAN:
+ yyg->yy_c_buf_p = yyg->yytext_ptr + offset;
+ break;
+ }
+ }
+ }
+
+ c = *(unsigned char *) yyg->yy_c_buf_p; /* cast for 8-bit char's */
+ *yyg->yy_c_buf_p = '\0'; /* preserve yytext */
+ yyg->yy_hold_char = *++yyg->yy_c_buf_p;
+
+ YY_CURRENT_BUFFER_LVALUE->yy_at_bol = (c == '\n');
+
+ return c;
+}
+#endif /* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ * @param yyscanner The scanner object.
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+ void _mesa_glsl_restart (FILE * input_file , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if ( ! YY_CURRENT_BUFFER ){
+ _mesa_glsl_ensure_buffer_stack (yyscanner);
+ YY_CURRENT_BUFFER_LVALUE =
+ _mesa_glsl__create_buffer(yyin,YY_BUF_SIZE ,yyscanner);
+ }
+
+ _mesa_glsl__init_buffer(YY_CURRENT_BUFFER,input_file ,yyscanner);
+ _mesa_glsl__load_buffer_state(yyscanner );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ * @param yyscanner The scanner object.
+ */
+ void _mesa_glsl__switch_to_buffer (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* TODO. We should be able to replace this entire function body
+ * with
+ * _mesa_glsl_pop_buffer_state();
+ * _mesa_glsl_push_buffer_state(new_buffer);
+ */
+ _mesa_glsl_ensure_buffer_stack (yyscanner);
+ if ( YY_CURRENT_BUFFER == new_buffer )
+ return;
+
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *yyg->yy_c_buf_p = yyg->yy_hold_char;
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
+ }
+
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+ _mesa_glsl__load_buffer_state(yyscanner );
+
+ /* We don't actually know whether we did this switch during
+ * EOF (_mesa_glsl_wrap()) processing, but the only time this flag
+ * is looked at is after _mesa_glsl_wrap() is called, so it's safe
+ * to go ahead and always set it.
+ */
+ yyg->yy_did_buffer_switch_on_eof = 1;
+}
+
+static void _mesa_glsl__load_buffer_state (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+ yyg->yytext_ptr = yyg->yy_c_buf_p = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+ yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+ yyg->yy_hold_char = *yyg->yy_c_buf_p;
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ * @param yyscanner The scanner object.
+ * @return the allocated buffer state.
+ */
+ YY_BUFFER_STATE _mesa_glsl__create_buffer (FILE * file, int size , yyscan_t yyscanner)
+{
+ YY_BUFFER_STATE b;
+
+ b = (YY_BUFFER_STATE) _mesa_glsl_alloc(sizeof( struct yy_buffer_state ) ,yyscanner );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in _mesa_glsl__create_buffer()" );
+
+ b->yy_buf_size = size;
+
+ /* yy_ch_buf has to be 2 characters longer than the size given because
+ * we need to put in 2 end-of-buffer characters.
+ */
+ b->yy_ch_buf = (char *) _mesa_glsl_alloc(b->yy_buf_size + 2 ,yyscanner );
+ if ( ! b->yy_ch_buf )
+ YY_FATAL_ERROR( "out of dynamic memory in _mesa_glsl__create_buffer()" );
+
+ b->yy_is_our_buffer = 1;
+
+ _mesa_glsl__init_buffer(b,file ,yyscanner);
+
+ return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with _mesa_glsl__create_buffer()
+ * @param yyscanner The scanner object.
+ */
+ void _mesa_glsl__delete_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if ( ! b )
+ return;
+
+ if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+ YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+ if ( b->yy_is_our_buffer )
+ _mesa_glsl_free((void *) b->yy_ch_buf ,yyscanner );
+
+ _mesa_glsl_free((void *) b ,yyscanner );
+}
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a _mesa_glsl_restart() or at EOF.
+ */
+ static void _mesa_glsl__init_buffer (YY_BUFFER_STATE b, FILE * file , yyscan_t yyscanner)
+
+{
+ int oerrno = errno;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ _mesa_glsl__flush_buffer(b ,yyscanner);
+
+ b->yy_input_file = file;
+ b->yy_fill_buffer = 1;
+
+ /* If b is the current buffer, then _mesa_glsl__init_buffer was _probably_
+ * called from _mesa_glsl_restart() or through yy_get_next_buffer.
+ * In that case, we don't want to reset the lineno or column.
+ */
+ if (b != YY_CURRENT_BUFFER){
+ b->yy_bs_lineno = 1;
+ b->yy_bs_column = 0;
+ }
+
+ b->yy_is_interactive = 0;
+
+ errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ * @param yyscanner The scanner object.
+ */
+ void _mesa_glsl__flush_buffer (YY_BUFFER_STATE b , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if ( ! b )
+ return;
+
+ b->yy_n_chars = 0;
+
+ /* We always need two end-of-buffer characters. The first causes
+ * a transition to the end-of-buffer state. The second causes
+ * a jam in that state.
+ */
+ b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+ b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+ b->yy_buf_pos = &b->yy_ch_buf[0];
+
+ b->yy_at_bol = 1;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ if ( b == YY_CURRENT_BUFFER )
+ _mesa_glsl__load_buffer_state(yyscanner );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ * the current state. This function will allocate the stack
+ * if necessary.
+ * @param new_buffer The new state.
+ * @param yyscanner The scanner object.
+ */
+void _mesa_glsl_push_buffer_state (YY_BUFFER_STATE new_buffer , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if (new_buffer == NULL)
+ return;
+
+ _mesa_glsl_ensure_buffer_stack(yyscanner);
+
+ /* This block is copied from _mesa_glsl__switch_to_buffer. */
+ if ( YY_CURRENT_BUFFER )
+ {
+ /* Flush out information for old buffer. */
+ *yyg->yy_c_buf_p = yyg->yy_hold_char;
+ YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
+ YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
+ }
+
+ /* Only push if top exists. Otherwise, replace top. */
+ if (YY_CURRENT_BUFFER)
+ yyg->yy_buffer_stack_top++;
+ YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+ /* copied from _mesa_glsl__switch_to_buffer. */
+ _mesa_glsl__load_buffer_state(yyscanner );
+ yyg->yy_did_buffer_switch_on_eof = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ * The next element becomes the new top.
+ * @param yyscanner The scanner object.
+ */
+void _mesa_glsl_pop_buffer_state (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ if (!YY_CURRENT_BUFFER)
+ return;
+
+ _mesa_glsl__delete_buffer(YY_CURRENT_BUFFER ,yyscanner);
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ if (yyg->yy_buffer_stack_top > 0)
+ --yyg->yy_buffer_stack_top;
+
+ if (YY_CURRENT_BUFFER) {
+ _mesa_glsl__load_buffer_state(yyscanner );
+ yyg->yy_did_buffer_switch_on_eof = 1;
+ }
+}
+
+/* Allocates the stack if it does not exist.
+ * Guarantees space for at least one push.
+ */
+static void _mesa_glsl_ensure_buffer_stack (yyscan_t yyscanner)
+{
+ int num_to_alloc;
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if (!yyg->yy_buffer_stack) {
+
+ /* First allocation is just for 2 elements, since we don't know if this
+ * scanner will even need a stack. We use 2 instead of 1 to avoid an
+ * immediate realloc on the next call.
+ */
+ num_to_alloc = 1;
+ yyg->yy_buffer_stack = (struct yy_buffer_state**)_mesa_glsl_alloc
+ (num_to_alloc * sizeof(struct yy_buffer_state*)
+ , yyscanner);
+ if ( ! yyg->yy_buffer_stack )
+ YY_FATAL_ERROR( "out of dynamic memory in _mesa_glsl_ensure_buffer_stack()" );
+
+ memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+
+ yyg->yy_buffer_stack_max = num_to_alloc;
+ yyg->yy_buffer_stack_top = 0;
+ return;
+ }
+
+ if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){
+
+ /* Increase the buffer to prepare for a possible push. */
+ int grow_size = 8 /* arbitrary grow size */;
+
+ num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
+ yyg->yy_buffer_stack = (struct yy_buffer_state**)_mesa_glsl_realloc
+ (yyg->yy_buffer_stack,
+ num_to_alloc * sizeof(struct yy_buffer_state*)
+ , yyscanner);
+ if ( ! yyg->yy_buffer_stack )
+ YY_FATAL_ERROR( "out of dynamic memory in _mesa_glsl_ensure_buffer_stack()" );
+
+ /* zero only the new slots.*/
+ memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*));
+ yyg->yy_buffer_stack_max = num_to_alloc;
+ }
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ * @param yyscanner The scanner object.
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE _mesa_glsl__scan_buffer (char * base, yy_size_t size , yyscan_t yyscanner)
+{
+ YY_BUFFER_STATE b;
+
+ if ( size < 2 ||
+ base[size-2] != YY_END_OF_BUFFER_CHAR ||
+ base[size-1] != YY_END_OF_BUFFER_CHAR )
+ /* They forgot to leave room for the EOB's. */
+ return 0;
+
+ b = (YY_BUFFER_STATE) _mesa_glsl_alloc(sizeof( struct yy_buffer_state ) ,yyscanner );
+ if ( ! b )
+ YY_FATAL_ERROR( "out of dynamic memory in _mesa_glsl__scan_buffer()" );
+
+ b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
+ b->yy_buf_pos = b->yy_ch_buf = base;
+ b->yy_is_our_buffer = 0;
+ b->yy_input_file = 0;
+ b->yy_n_chars = b->yy_buf_size;
+ b->yy_is_interactive = 0;
+ b->yy_at_bol = 1;
+ b->yy_fill_buffer = 0;
+ b->yy_buffer_status = YY_BUFFER_NEW;
+
+ _mesa_glsl__switch_to_buffer(b ,yyscanner );
+
+ return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to _mesa_glsl_lex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ * @param yyscanner The scanner object.
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ * _mesa_glsl__scan_bytes() instead.
+ */
+YY_BUFFER_STATE _mesa_glsl__scan_string (yyconst char * yystr , yyscan_t yyscanner)
+{
+
+ return _mesa_glsl__scan_bytes(yystr,strlen(yystr) ,yyscanner);
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to _mesa_glsl_lex() will
+ * scan from a @e copy of @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
+ * @param yyscanner The scanner object.
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE _mesa_glsl__scan_bytes (yyconst char * yybytes, int _yybytes_len , yyscan_t yyscanner)
+{
+ YY_BUFFER_STATE b;
+ char *buf;
+ yy_size_t n;
+ int i;
+
+ /* Get memory for full buffer, including space for trailing EOB's. */
+ n = _yybytes_len + 2;
+ buf = (char *) _mesa_glsl_alloc(n ,yyscanner );
+ if ( ! buf )
+ YY_FATAL_ERROR( "out of dynamic memory in _mesa_glsl__scan_bytes()" );
+
+ for ( i = 0; i < _yybytes_len; ++i )
+ buf[i] = yybytes[i];
+
+ buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+ b = _mesa_glsl__scan_buffer(buf,n ,yyscanner);
+ if ( ! b )
+ YY_FATAL_ERROR( "bad buffer in _mesa_glsl__scan_bytes()" );
+
+ /* It's okay to grow etc. this buffer, and we should throw it
+ * away when we're done.
+ */
+ b->yy_is_our_buffer = 1;
+
+ return b;
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yy_fatal_error (yyconst char* msg , yyscan_t yyscanner)
+{
+ (void) fprintf( stderr, "%s\n", msg );
+ exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+ do \
+ { \
+ /* Undo effects of setting up yytext. */ \
+ int yyless_macro_arg = (n); \
+ YY_LESS_LINENO(yyless_macro_arg);\
+ yytext[yyleng] = yyg->yy_hold_char; \
+ yyg->yy_c_buf_p = yytext + yyless_macro_arg; \
+ yyg->yy_hold_char = *yyg->yy_c_buf_p; \
+ *yyg->yy_c_buf_p = '\0'; \
+ yyleng = yyless_macro_arg; \
+ } \
+ while ( 0 )
+
+/* Accessor methods (get/set functions) to struct members. */
+
+/** Get the user-defined data for this scanner.
+ * @param yyscanner The scanner object.
+ */
+YY_EXTRA_TYPE _mesa_glsl_get_extra (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyextra;
+}
+
+/** Get the current line number.
+ * @param yyscanner The scanner object.
+ */
+int _mesa_glsl_get_lineno (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if (! YY_CURRENT_BUFFER)
+ return 0;
+
+ return yylineno;
+}
+
+/** Get the current column number.
+ * @param yyscanner The scanner object.
+ */
+int _mesa_glsl_get_column (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ if (! YY_CURRENT_BUFFER)
+ return 0;
+
+ return yycolumn;
+}
+
+/** Get the input stream.
+ * @param yyscanner The scanner object.
+ */
+FILE *_mesa_glsl_get_in (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyin;
+}
+
+/** Get the output stream.
+ * @param yyscanner The scanner object.
+ */
+FILE *_mesa_glsl_get_out (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyout;
+}
+
+/** Get the length of the current token.
+ * @param yyscanner The scanner object.
+ */
+int _mesa_glsl_get_leng (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yyleng;
+}
+
+/** Get the current token.
+ * @param yyscanner The scanner object.
+ */
+
+char *_mesa_glsl_get_text (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yytext;
+}
+
+/** Set the user-defined data. This data is never touched by the scanner.
+ * @param user_defined The data to be associated with this scanner.
+ * @param yyscanner The scanner object.
+ */
+void _mesa_glsl_set_extra (YY_EXTRA_TYPE user_defined , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyextra = user_defined ;
+}
+
+/** Set the current line number.
+ * @param line_number
+ * @param yyscanner The scanner object.
+ */
+void _mesa_glsl_set_lineno (int line_number , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* lineno is only valid if an input buffer exists. */
+ if (! YY_CURRENT_BUFFER )
+ yy_fatal_error( "_mesa_glsl_set_lineno called with no buffer" , yyscanner);
+
+ yylineno = line_number;
+}
+
+/** Set the current column.
+ * @param line_number
+ * @param yyscanner The scanner object.
+ */
+void _mesa_glsl_set_column (int column_no , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* column is only valid if an input buffer exists. */
+ if (! YY_CURRENT_BUFFER )
+ yy_fatal_error( "_mesa_glsl_set_column called with no buffer" , yyscanner);
+
+ yycolumn = column_no;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ * @param yyscanner The scanner object.
+ * @see _mesa_glsl__switch_to_buffer
+ */
+void _mesa_glsl_set_in (FILE * in_str , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyin = in_str ;
+}
+
+void _mesa_glsl_set_out (FILE * out_str , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yyout = out_str ;
+}
+
+int _mesa_glsl_get_debug (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yy_flex_debug;
+}
+
+void _mesa_glsl_set_debug (int bdebug , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yy_flex_debug = bdebug ;
+}
+
+/* Accessor methods for yylval and yylloc */
+
+YYSTYPE * _mesa_glsl_get_lval (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yylval;
+}
+
+void _mesa_glsl_set_lval (YYSTYPE * yylval_param , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yylval = yylval_param;
+}
+
+YYLTYPE *_mesa_glsl_get_lloc (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ return yylloc;
+}
+
+void _mesa_glsl_set_lloc (YYLTYPE * yylloc_param , yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ yylloc = yylloc_param;
+}
+
+/* User-visible API */
+
+/* _mesa_glsl_lex_init is special because it creates the scanner itself, so it is
+ * the ONLY reentrant function that doesn't take the scanner as the last argument.
+ * That's why we explicitly handle the declaration, instead of using our macros.
+ */
+
+int _mesa_glsl_lex_init(yyscan_t* ptr_yy_globals)
+
+{
+ if (ptr_yy_globals == NULL){
+ errno = EINVAL;
+ return 1;
+ }
+
+ *ptr_yy_globals = (yyscan_t) _mesa_glsl_alloc ( sizeof( struct yyguts_t ), NULL );
+
+ if (*ptr_yy_globals == NULL){
+ errno = ENOMEM;
+ return 1;
+ }
+
+ /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
+ memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
+
+ return yy_init_globals ( *ptr_yy_globals );
+}
+
+/* _mesa_glsl_lex_init_extra has the same functionality as _mesa_glsl_lex_init, but follows the
+ * convention of taking the scanner as the last argument. Note however, that
+ * this is a *pointer* to a scanner, as it will be allocated by this call (and
+ * is the reason, too, why this function also must handle its own declaration).
+ * The user defined value in the first argument will be available to _mesa_glsl_alloc in
+ * the yyextra field.
+ */
+
+int _mesa_glsl_lex_init_extra(YY_EXTRA_TYPE yy_user_defined,yyscan_t* ptr_yy_globals )
+
+{
+ struct yyguts_t dummy_yyguts;
+
+ _mesa_glsl_set_extra (yy_user_defined, &dummy_yyguts);
+
+ if (ptr_yy_globals == NULL){
+ errno = EINVAL;
+ return 1;
+ }
+
+ *ptr_yy_globals = (yyscan_t) _mesa_glsl_alloc ( sizeof( struct yyguts_t ), &dummy_yyguts );
+
+ if (*ptr_yy_globals == NULL){
+ errno = ENOMEM;
+ return 1;
+ }
+
+ /* By setting to 0xAA, we expose bugs in
+ yy_init_globals. Leave at 0x00 for releases. */
+ memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
+
+ _mesa_glsl_set_extra (yy_user_defined, *ptr_yy_globals);
+
+ return yy_init_globals ( *ptr_yy_globals );
+}
+
+static int yy_init_globals (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+ /* Initialization is the same as for the non-reentrant scanner.
+ * This function is called from _mesa_glsl_lex_destroy(), so don't allocate here.
+ */
+
+ yyg->yy_buffer_stack = 0;
+ yyg->yy_buffer_stack_top = 0;
+ yyg->yy_buffer_stack_max = 0;
+ yyg->yy_c_buf_p = (char *) 0;
+ yyg->yy_init = 0;
+ yyg->yy_start = 0;
+
+ yyg->yy_start_stack_ptr = 0;
+ yyg->yy_start_stack_depth = 0;
+ yyg->yy_start_stack = NULL;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+ yyin = stdin;
+ yyout = stdout;
+#else
+ yyin = (FILE *) 0;
+ yyout = (FILE *) 0;
+#endif
+
+ /* For future reference: Set errno on error, since we are called by
+ * _mesa_glsl_lex_init()
+ */
+ return 0;
+}
+
+/* _mesa_glsl_lex_destroy is for both reentrant and non-reentrant scanners. */
+int _mesa_glsl_lex_destroy (yyscan_t yyscanner)
+{
+ struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
+
+ /* Pop the buffer stack, destroying each element. */
+ while(YY_CURRENT_BUFFER){
+ _mesa_glsl__delete_buffer(YY_CURRENT_BUFFER ,yyscanner );
+ YY_CURRENT_BUFFER_LVALUE = NULL;
+ _mesa_glsl_pop_buffer_state(yyscanner);
+ }
+
+ /* Destroy the stack itself. */
+ _mesa_glsl_free(yyg->yy_buffer_stack ,yyscanner);
+ yyg->yy_buffer_stack = NULL;
+
+ /* Destroy the start condition stack. */
+ _mesa_glsl_free(yyg->yy_start_stack ,yyscanner );
+ yyg->yy_start_stack = NULL;
+
+ /* Reset the globals. This is important in a non-reentrant scanner so the next time
+ * _mesa_glsl_lex() is called, initialization will occur. */
+ yy_init_globals( yyscanner);
+
+ /* Destroy the main struct (reentrant only). */
+ _mesa_glsl_free ( yyscanner , yyscanner );
+ yyscanner = NULL;
+ return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n , yyscan_t yyscanner)
+{
+ register int i;
+ for ( i = 0; i < n; ++i )
+ s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s , yyscan_t yyscanner)
+{
+ register int n;
+ for ( n = 0; s[n]; ++n )
+ ;
+
+ return n;
+}
+#endif
+
+void *_mesa_glsl_alloc (yy_size_t size , yyscan_t yyscanner)
+{
+ return (void *) malloc( size );
+}
+
+void *_mesa_glsl_realloc (void * ptr, yy_size_t size , yyscan_t yyscanner)
+{
+ /* The cast to (char *) in the following accommodates both
+ * implementations that use char* generic pointers, and those
+ * that use void* generic pointers. It works with the latter
+ * because both ANSI C and C++ allow castless assignment from
+ * any pointer type to void*, and deal with argument conversions
+ * as though doing an assignment.
+ */
+ return (void *) realloc( (char *) ptr, size );
+}
+
+void _mesa_glsl_free (void * ptr , yyscan_t yyscanner)
+{
+ free( (char *) ptr ); /* see _mesa_glsl_realloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+#line 386 "glsl_lexer.lpp"
+
+
+
+void
+_mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, const char *string)
+{
+ _mesa_glsl_lex_init_extra(state,& state->scanner);
+ _mesa_glsl__scan_string(string,state->scanner);
+}
+
+void
+_mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state)
+{
+ _mesa_glsl_lex_destroy(state->scanner);
+}
+
diff --git a/mesalib/src/glsl/glsl_lexer.lpp b/mesalib/src/glsl/glsl_lexer.lpp
new file mode 100644
index 000000000..ed3cb251a
--- /dev/null
+++ b/mesalib/src/glsl/glsl_lexer.lpp
@@ -0,0 +1,399 @@
+%{
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <ctype.h>
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_parser.h"
+
+#define YY_USER_ACTION \
+ do { \
+ yylloc->source = 0; \
+ yylloc->first_column = yycolumn + 1; \
+ yylloc->first_line = yylineno + 1; \
+ yycolumn += yyleng; \
+ } while(0);
+
+#define YY_USER_INIT yylineno = 0; yycolumn = 0;
+
+#define TOKEN_OR_IDENTIFIER(version, token) \
+ do { \
+ if (yyextra->language_version >= version) { \
+ return token; \
+ } else { \
+ yylval->identifier = strdup(yytext); \
+ return IDENTIFIER; \
+ } \
+ } while (0)
+
+/* Handle reserved words in GLSL ES (version 100) */
+#define TOKEN_OR_IDENTIFIER_ES(version, token) \
+ do { \
+ if (yyextra->es_shader) { \
+ return token; \
+ } else { \
+ TOKEN_OR_IDENTIFIER(version, token); \
+ } \
+ } while (0)
+
+#define RESERVED_WORD(version, token) \
+ do { \
+ if (yyextra->language_version >= version) { \
+ return token; \
+ } else { \
+ _mesa_glsl_error(yylloc, yyextra, \
+ "Illegal use of reserved word `%s'", yytext); \
+ return ERROR_TOK; \
+ } \
+ } while (0)
+%}
+
+%option bison-bridge bison-locations reentrant noyywrap
+%option nounput noyy_top_state
+%option never-interactive
+%option prefix="_mesa_glsl_"
+%option extra-type="struct _mesa_glsl_parse_state *"
+
+%x PP PRAGMA
+
+DEC_INT [1-9][0-9]*
+HEX_INT 0[xX][0-9a-fA-F]+
+OCT_INT 0[0-7]*
+INT ({DEC_INT}|{HEX_INT}|{OCT_INT})
+SPC [ \t]*
+SPCP [ \t]+
+HASH ^{SPC}#{SPC}
+%%
+
+[ \r\t]+ ;
+
+ /* Preprocessor tokens. */
+^[ \t]*#[ \t]*$ ;
+^[ \t]*#[ \t]*version { BEGIN PP; return VERSION; }
+^[ \t]*#[ \t]*extension { BEGIN PP; return EXTENSION; }
+{HASH}line{SPCP}{INT}{SPCP}{INT}{SPC}$ {
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+ yylloc->source = strtol(ptr, NULL, 0);
+ }
+{HASH}line{SPCP}{INT}{SPC}$ {
+ /* Eat characters until the first digit is
+ * encountered
+ */
+ char *ptr = yytext;
+ while (!isdigit(*ptr))
+ ptr++;
+
+ /* Subtract one from the line number because
+ * yylineno is zero-based instead of
+ * one-based.
+ */
+ yylineno = strtol(ptr, &ptr, 0) - 1;
+ }
+^{SPC}#{SPC}pragma{SPCP}debug{SPC}\({SPC}on{SPC}\) {
+ BEGIN PP;
+ return PRAGMA_DEBUG_ON;
+ }
+^{SPC}#{SPC}pragma{SPCP}debug{SPC}\({SPC}off{SPC}\) {
+ BEGIN PP;
+ return PRAGMA_DEBUG_OFF;
+ }
+^{SPC}#{SPC}pragma{SPCP}optimize{SPC}\({SPC}on{SPC}\) {
+ BEGIN PP;
+ return PRAGMA_OPTIMIZE_ON;
+ }
+^{SPC}#{SPC}pragma{SPCP}optimize{SPC}\({SPC}off{SPC}\) {
+ BEGIN PP;
+ return PRAGMA_OPTIMIZE_OFF;
+ }
+^{SPC}#{SPC}pragma{SPCP} { BEGIN PRAGMA; }
+
+<PRAGMA>\n { BEGIN 0; yylineno++; yycolumn = 0; }
+<PRAGMA>. { }
+
+<PP>\/\/[^\n]* { }
+<PP>[ \t\r]* { }
+<PP>: return COLON;
+<PP>[_a-zA-Z][_a-zA-Z0-9]* {
+ yylval->identifier = strdup(yytext);
+ return IDENTIFIER;
+ }
+<PP>[1-9][0-9]* {
+ yylval->n = strtol(yytext, NULL, 10);
+ return INTCONSTANT;
+ }
+<PP>\n { BEGIN 0; yylineno++; yycolumn = 0; return EOL; }
+
+\n { yylineno++; yycolumn = 0; }
+
+attribute return ATTRIBUTE;
+const return CONST_TOK;
+bool return BOOL_TOK;
+float return FLOAT_TOK;
+int return INT_TOK;
+
+break return BREAK;
+continue return CONTINUE;
+do return DO;
+while return WHILE;
+else return ELSE;
+for return FOR;
+if return IF;
+discard return DISCARD;
+return return RETURN;
+
+bvec2 return BVEC2;
+bvec3 return BVEC3;
+bvec4 return BVEC4;
+ivec2 return IVEC2;
+ivec3 return IVEC3;
+ivec4 return IVEC4;
+vec2 return VEC2;
+vec3 return VEC3;
+vec4 return VEC4;
+mat2 return MAT2X2;
+mat3 return MAT3X3;
+mat4 return MAT4X4;
+mat2x2 TOKEN_OR_IDENTIFIER(120, MAT2X2);
+mat2x3 TOKEN_OR_IDENTIFIER(120, MAT2X3);
+mat2x4 TOKEN_OR_IDENTIFIER(120, MAT2X4);
+mat3x2 TOKEN_OR_IDENTIFIER(120, MAT3X2);
+mat3x3 TOKEN_OR_IDENTIFIER(120, MAT3X3);
+mat3x4 TOKEN_OR_IDENTIFIER(120, MAT3X4);
+mat4x2 TOKEN_OR_IDENTIFIER(120, MAT4X2);
+mat4x3 TOKEN_OR_IDENTIFIER(120, MAT4X3);
+mat4x4 TOKEN_OR_IDENTIFIER(120, MAT4X4);
+
+in return IN_TOK;
+out return OUT_TOK;
+inout return INOUT_TOK;
+uniform return UNIFORM;
+varying return VARYING;
+centroid TOKEN_OR_IDENTIFIER(120, CENTROID);
+invariant TOKEN_OR_IDENTIFIER_ES(120, INVARIANT);
+
+flat TOKEN_OR_IDENTIFIER_ES(130, FLAT);
+smooth TOKEN_OR_IDENTIFIER(130, SMOOTH);
+noperspective TOKEN_OR_IDENTIFIER(130, NOPERSPECTIVE);
+
+sampler1D return SAMPLER1D;
+sampler2D return SAMPLER2D;
+sampler3D return SAMPLER3D;
+samplerCube return SAMPLERCUBE;
+sampler1DShadow return SAMPLER1DSHADOW;
+sampler2DShadow return SAMPLER2DSHADOW;
+
+struct return STRUCT;
+void return VOID_TOK;
+
+layout {
+ if ((yyextra->language_version >= 140)
+ || (yyextra->ARB_fragment_coord_conventions_enable)){
+ return LAYOUT_TOK;
+ } else {
+ yylval->identifier = strdup(yytext);
+ return IDENTIFIER;
+ }
+ }
+
+\+\+ return INC_OP;
+-- return DEC_OP;
+\<= return LE_OP;
+>= return GE_OP;
+== return EQ_OP;
+!= return NE_OP;
+&& return AND_OP;
+\|\| return OR_OP;
+"^^" return XOR_OP;
+
+\*= return MUL_ASSIGN;
+\/= return DIV_ASSIGN;
+\+= return ADD_ASSIGN;
+\%= return MOD_ASSIGN;
+\<\<= return LEFT_ASSIGN;
+>>= return RIGHT_ASSIGN;
+&= return AND_ASSIGN;
+^= return XOR_ASSIGN;
+\|= return OR_ASSIGN;
+-= return SUB_ASSIGN;
+
+[1-9][0-9]* {
+ yylval->n = strtol(yytext, NULL, 10);
+ return INTCONSTANT;
+ }
+0[xX][0-9a-fA-F]+ {
+ yylval->n = strtol(yytext + 2, NULL, 16);
+ return INTCONSTANT;
+ }
+0[0-7]* {
+ yylval->n = strtol(yytext, NULL, 8);
+ return INTCONSTANT;
+ }
+
+[0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+\.[0-9]+([eE][+-]?[0-9]+)?[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+[0-9]+\.([eE][+-]?[0-9]+)?[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+[0-9]+[eE][+-]?[0-9]+[fF]? {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+[0-9]+[fF] {
+ yylval->real = strtod(yytext, NULL);
+ return FLOATCONSTANT;
+ }
+
+true {
+ yylval->n = 1;
+ return BOOLCONSTANT;
+ }
+false {
+ yylval->n = 0;
+ return BOOLCONSTANT;
+ }
+
+
+ /* Reserved words in GLSL 1.10. */
+asm RESERVED_WORD(999, ASM);
+class RESERVED_WORD(999, CLASS);
+union RESERVED_WORD(999, UNION);
+enum RESERVED_WORD(999, ENUM);
+typedef RESERVED_WORD(999, TYPEDEF);
+template RESERVED_WORD(999, TEMPLATE);
+this RESERVED_WORD(999, THIS);
+packed RESERVED_WORD(999, PACKED_TOK);
+goto RESERVED_WORD(999, GOTO);
+switch RESERVED_WORD(130, SWITCH);
+default RESERVED_WORD(130, DEFAULT);
+inline RESERVED_WORD(999, INLINE_TOK);
+noinline RESERVED_WORD(999, NOINLINE);
+volatile RESERVED_WORD(999, VOLATILE);
+public RESERVED_WORD(999, PUBLIC_TOK);
+static RESERVED_WORD(999, STATIC);
+extern RESERVED_WORD(999, EXTERN);
+external RESERVED_WORD(999, EXTERNAL);
+interface RESERVED_WORD(999, INTERFACE);
+long RESERVED_WORD(999, LONG_TOK);
+short RESERVED_WORD(999, SHORT_TOK);
+double RESERVED_WORD(999, DOUBLE_TOK);
+half RESERVED_WORD(999, HALF);
+fixed RESERVED_WORD(999, FIXED_TOK);
+unsigned RESERVED_WORD(999, UNSIGNED);
+input RESERVED_WORD(999, INPUT_TOK);
+output RESERVED_WORD(999, OUTPUT);
+hvec2 RESERVED_WORD(999, HVEC2);
+hvec3 RESERVED_WORD(999, HVEC3);
+hvec4 RESERVED_WORD(999, HVEC4);
+dvec2 RESERVED_WORD(999, DVEC2);
+dvec3 RESERVED_WORD(999, DVEC3);
+dvec4 RESERVED_WORD(999, DVEC4);
+fvec2 RESERVED_WORD(999, FVEC2);
+fvec3 RESERVED_WORD(999, FVEC3);
+fvec4 RESERVED_WORD(999, FVEC4);
+sampler2DRect return SAMPLER2DRECT;
+sampler3DRect RESERVED_WORD(999, SAMPLER3DRECT);
+sampler2DRectShadow return SAMPLER2DRECTSHADOW;
+sizeof RESERVED_WORD(999, SIZEOF);
+cast RESERVED_WORD(999, CAST);
+namespace RESERVED_WORD(999, NAMESPACE);
+using RESERVED_WORD(999, USING);
+
+ /* Additional reserved words in GLSL 1.20. */
+lowp TOKEN_OR_IDENTIFIER_ES(120, LOWP);
+mediump TOKEN_OR_IDENTIFIER_ES(120, MEDIUMP);
+highp TOKEN_OR_IDENTIFIER_ES(120, HIGHP);
+precision TOKEN_OR_IDENTIFIER_ES(120, PRECISION);
+
+ /* Additional reserved words in GLSL 1.30. */
+common TOKEN_OR_IDENTIFIER(130, COMMON);
+partition TOKEN_OR_IDENTIFIER(130, PARTITION);
+active TOKEN_OR_IDENTIFIER(130, ACTIVE);
+superp TOKEN_OR_IDENTIFIER_ES(130, SUPERP);
+samplerBuffer TOKEN_OR_IDENTIFIER(130, SAMPLERBUFFER);
+filter TOKEN_OR_IDENTIFIER(130, FILTER);
+image1D TOKEN_OR_IDENTIFIER(130, IMAGE1D);
+image2D TOKEN_OR_IDENTIFIER(130, IMAGE2D);
+image3D TOKEN_OR_IDENTIFIER(130, IMAGE3D);
+imageCube TOKEN_OR_IDENTIFIER(130, IMAGECUBE);
+iimage1D TOKEN_OR_IDENTIFIER(130, IIMAGE1D);
+iimage2D TOKEN_OR_IDENTIFIER(130, IIMAGE2D);
+iimage3D TOKEN_OR_IDENTIFIER(130, IIMAGE3D);
+iimageCube TOKEN_OR_IDENTIFIER(130, IIMAGECUBE);
+uimage1D TOKEN_OR_IDENTIFIER(130, UIMAGE1D);
+uimage2D TOKEN_OR_IDENTIFIER(130, UIMAGE2D);
+uimage3D TOKEN_OR_IDENTIFIER(130, UIMAGE3D);
+uimageCube TOKEN_OR_IDENTIFIER(130, UIMAGECUBE);
+image1DArray TOKEN_OR_IDENTIFIER(130, IMAGE1DARRAY);
+image2DArray TOKEN_OR_IDENTIFIER(130, IMAGE2DARRAY);
+iimage1DArray TOKEN_OR_IDENTIFIER(130, IIMAGE1DARRAY);
+iimage2DArray TOKEN_OR_IDENTIFIER(130, IIMAGE2DARRAY);
+uimage1DArray TOKEN_OR_IDENTIFIER(130, UIMAGE1DARRAY);
+uimage2DArray TOKEN_OR_IDENTIFIER(130, UIMAGE2DARRAY);
+image1DShadow TOKEN_OR_IDENTIFIER(130, IMAGE1DSHADOW);
+image2DShadow TOKEN_OR_IDENTIFIER(130, IMAGE2DSHADOW);
+imageBuffer TOKEN_OR_IDENTIFIER(130, IMAGEBUFFER);
+iimageBuffer TOKEN_OR_IDENTIFIER(130, IIMAGEBUFFER);
+uimageBuffer TOKEN_OR_IDENTIFIER(130, UIMAGEBUFFER);
+row_major TOKEN_OR_IDENTIFIER(130, ROW_MAJOR);
+
+[_a-zA-Z][_a-zA-Z0-9]* {
+ struct _mesa_glsl_parse_state *state = yyextra;
+ void *ctx = state;
+ yylval->identifier = talloc_strdup(ctx, yytext);
+ return IDENTIFIER;
+ }
+
+. { return yytext[0]; }
+
+%%
+
+void
+_mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, const char *string)
+{
+ yylex_init_extra(state, & state->scanner);
+ yy_scan_string(string, state->scanner);
+}
+
+void
+_mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state)
+{
+ yylex_destroy(state->scanner);
+}
diff --git a/mesalib/src/glsl/glsl_parser.cpp b/mesalib/src/glsl/glsl_parser.cpp
new file mode 100644
index 000000000..301c22189
--- /dev/null
+++ b/mesalib/src/glsl/glsl_parser.cpp
@@ -0,0 +1,5232 @@
+/* A Bison parser, made by GNU Bison 2.4.3. */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2009, 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+ simplifying the original so-called "semantic" parser. */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+ infringing on user name space. This should be done even for local
+ variables, as they might otherwise be expanded by user macros.
+ There are some unavoidable exceptions within include files to
+ define necessary library symbols; they are noted "INFRINGES ON
+ USER NAME SPACE" below. */
+
+/* Identify Bison output. */
+#define YYBISON 1
+
+/* Bison version. */
+#define YYBISON_VERSION "2.4.3"
+
+/* Skeleton name. */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers. */
+#define YYPURE 1
+
+/* Push parsers. */
+#define YYPUSH 0
+
+/* Pull parsers. */
+#define YYPULL 1
+
+/* Using locations. */
+#define YYLSP_NEEDED 1
+
+/* Substitute the variable and function names. */
+#define yyparse _mesa_glsl_parse
+#define yylex _mesa_glsl_lex
+#define yyerror _mesa_glsl_error
+#define yylval _mesa_glsl_lval
+#define yychar _mesa_glsl_char
+#define yydebug _mesa_glsl_debug
+#define yynerrs _mesa_glsl_nerrs
+#define yylloc _mesa_glsl_lloc
+
+/* Copy the first part of user declarations. */
+
+/* Line 189 of yacc.c */
+#line 1 "glsl_parser.ypp"
+
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_types.h"
+
+#define YYLEX_PARAM state->scanner
+
+
+
+/* Line 189 of yacc.c */
+#line 117 "glsl_parser.cpp"
+
+/* Enabling traces. */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages. */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 1
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ ATTRIBUTE = 258,
+ CONST_TOK = 259,
+ BOOL_TOK = 260,
+ FLOAT_TOK = 261,
+ INT_TOK = 262,
+ UINT_TOK = 263,
+ BREAK = 264,
+ CONTINUE = 265,
+ DO = 266,
+ ELSE = 267,
+ FOR = 268,
+ IF = 269,
+ DISCARD = 270,
+ RETURN = 271,
+ SWITCH = 272,
+ CASE = 273,
+ DEFAULT = 274,
+ BVEC2 = 275,
+ BVEC3 = 276,
+ BVEC4 = 277,
+ IVEC2 = 278,
+ IVEC3 = 279,
+ IVEC4 = 280,
+ UVEC2 = 281,
+ UVEC3 = 282,
+ UVEC4 = 283,
+ VEC2 = 284,
+ VEC3 = 285,
+ VEC4 = 286,
+ CENTROID = 287,
+ IN_TOK = 288,
+ OUT_TOK = 289,
+ INOUT_TOK = 290,
+ UNIFORM = 291,
+ VARYING = 292,
+ NOPERSPECTIVE = 293,
+ FLAT = 294,
+ SMOOTH = 295,
+ MAT2X2 = 296,
+ MAT2X3 = 297,
+ MAT2X4 = 298,
+ MAT3X2 = 299,
+ MAT3X3 = 300,
+ MAT3X4 = 301,
+ MAT4X2 = 302,
+ MAT4X3 = 303,
+ MAT4X4 = 304,
+ SAMPLER1D = 305,
+ SAMPLER2D = 306,
+ SAMPLER3D = 307,
+ SAMPLERCUBE = 308,
+ SAMPLER1DSHADOW = 309,
+ SAMPLER2DSHADOW = 310,
+ SAMPLERCUBESHADOW = 311,
+ SAMPLER1DARRAY = 312,
+ SAMPLER2DARRAY = 313,
+ SAMPLER1DARRAYSHADOW = 314,
+ SAMPLER2DARRAYSHADOW = 315,
+ ISAMPLER1D = 316,
+ ISAMPLER2D = 317,
+ ISAMPLER3D = 318,
+ ISAMPLERCUBE = 319,
+ ISAMPLER1DARRAY = 320,
+ ISAMPLER2DARRAY = 321,
+ USAMPLER1D = 322,
+ USAMPLER2D = 323,
+ USAMPLER3D = 324,
+ USAMPLERCUBE = 325,
+ USAMPLER1DARRAY = 326,
+ USAMPLER2DARRAY = 327,
+ STRUCT = 328,
+ VOID_TOK = 329,
+ WHILE = 330,
+ IDENTIFIER = 331,
+ FLOATCONSTANT = 332,
+ INTCONSTANT = 333,
+ UINTCONSTANT = 334,
+ BOOLCONSTANT = 335,
+ FIELD_SELECTION = 336,
+ LEFT_OP = 337,
+ RIGHT_OP = 338,
+ INC_OP = 339,
+ DEC_OP = 340,
+ LE_OP = 341,
+ GE_OP = 342,
+ EQ_OP = 343,
+ NE_OP = 344,
+ AND_OP = 345,
+ OR_OP = 346,
+ XOR_OP = 347,
+ MUL_ASSIGN = 348,
+ DIV_ASSIGN = 349,
+ ADD_ASSIGN = 350,
+ MOD_ASSIGN = 351,
+ LEFT_ASSIGN = 352,
+ RIGHT_ASSIGN = 353,
+ AND_ASSIGN = 354,
+ XOR_ASSIGN = 355,
+ OR_ASSIGN = 356,
+ SUB_ASSIGN = 357,
+ INVARIANT = 358,
+ LOWP = 359,
+ MEDIUMP = 360,
+ HIGHP = 361,
+ SUPERP = 362,
+ PRECISION = 363,
+ VERSION = 364,
+ EXTENSION = 365,
+ LINE = 366,
+ COLON = 367,
+ EOL = 368,
+ INTERFACE = 369,
+ OUTPUT = 370,
+ PRAGMA_DEBUG_ON = 371,
+ PRAGMA_DEBUG_OFF = 372,
+ PRAGMA_OPTIMIZE_ON = 373,
+ PRAGMA_OPTIMIZE_OFF = 374,
+ LAYOUT_TOK = 375,
+ ASM = 376,
+ CLASS = 377,
+ UNION = 378,
+ ENUM = 379,
+ TYPEDEF = 380,
+ TEMPLATE = 381,
+ THIS = 382,
+ PACKED_TOK = 383,
+ GOTO = 384,
+ INLINE_TOK = 385,
+ NOINLINE = 386,
+ VOLATILE = 387,
+ PUBLIC_TOK = 388,
+ STATIC = 389,
+ EXTERN = 390,
+ EXTERNAL = 391,
+ LONG_TOK = 392,
+ SHORT_TOK = 393,
+ DOUBLE_TOK = 394,
+ HALF = 395,
+ FIXED_TOK = 396,
+ UNSIGNED = 397,
+ INPUT_TOK = 398,
+ OUPTUT = 399,
+ HVEC2 = 400,
+ HVEC3 = 401,
+ HVEC4 = 402,
+ DVEC2 = 403,
+ DVEC3 = 404,
+ DVEC4 = 405,
+ FVEC2 = 406,
+ FVEC3 = 407,
+ FVEC4 = 408,
+ SAMPLER2DRECT = 409,
+ SAMPLER3DRECT = 410,
+ SAMPLER2DRECTSHADOW = 411,
+ SIZEOF = 412,
+ CAST = 413,
+ NAMESPACE = 414,
+ USING = 415,
+ ERROR_TOK = 416,
+ COMMON = 417,
+ PARTITION = 418,
+ ACTIVE = 419,
+ SAMPLERBUFFER = 420,
+ FILTER = 421,
+ IMAGE1D = 422,
+ IMAGE2D = 423,
+ IMAGE3D = 424,
+ IMAGECUBE = 425,
+ IMAGE1DARRAY = 426,
+ IMAGE2DARRAY = 427,
+ IIMAGE1D = 428,
+ IIMAGE2D = 429,
+ IIMAGE3D = 430,
+ IIMAGECUBE = 431,
+ IIMAGE1DARRAY = 432,
+ IIMAGE2DARRAY = 433,
+ UIMAGE1D = 434,
+ UIMAGE2D = 435,
+ UIMAGE3D = 436,
+ UIMAGECUBE = 437,
+ UIMAGE1DARRAY = 438,
+ UIMAGE2DARRAY = 439,
+ IMAGE1DSHADOW = 440,
+ IMAGE2DSHADOW = 441,
+ IMAGEBUFFER = 442,
+ IIMAGEBUFFER = 443,
+ UIMAGEBUFFER = 444,
+ ROW_MAJOR = 445
+ };
+#endif
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+{
+
+/* Line 214 of yacc.c */
+#line 52 "glsl_parser.ypp"
+
+ int n;
+ float real;
+ char *identifier;
+
+ union {
+ struct ast_type_qualifier q;
+ unsigned i;
+ } type_qualifier;
+
+ ast_node *node;
+ ast_type_specifier *type_specifier;
+ ast_fully_specified_type *fully_specified_type;
+ ast_function *function;
+ ast_parameter_declarator *parameter_declarator;
+ ast_function_definition *function_definition;
+ ast_compound_statement *compound_statement;
+ ast_expression *expression;
+ ast_declarator_list *declarator_list;
+ ast_struct_specifier *struct_specifier;
+ ast_declaration *declaration;
+
+ struct {
+ ast_node *cond;
+ ast_expression *rest;
+ } for_rest_statement;
+
+ struct {
+ ast_node *then_statement;
+ ast_node *else_statement;
+ } selection_rest_statement;
+
+
+
+/* Line 214 of yacc.c */
+#line 378 "glsl_parser.cpp"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+/* Copy the second part of user declarations. */
+
+
+/* Line 264 of yacc.c */
+#line 403 "glsl_parser.cpp"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E. */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions. */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int yyi)
+#else
+static int
+YYID (yyi)
+ int yyi;
+#endif
+{
+ return yyi;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# endif
+# endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+ /* Pacify GCC's `empty if-body' warning. */
+# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+# ifndef YYSTACK_ALLOC_MAXIMUM
+ /* The OS might guarantee only one guard page at the bottom of the stack,
+ and a page size can be as small as 4096 bytes. So we cannot safely
+ invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
+ to allow for a few compiler-allocated temporary stack slots. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+# endif
+# else
+# define YYSTACK_ALLOC YYMALLOC
+# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# ifndef YYFREE
+# define YYFREE free
+# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# endif
+# endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+ && (! defined __cplusplus \
+ || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+ && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member. */
+union yyalloc
+{
+ yytype_int16 yyss_alloc;
+ YYSTYPE yyvs_alloc;
+ YYLTYPE yyls_alloc;
+};
+
+/* The size of the maximum gap between one aligned stack and the next. */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+ N elements. */
+# define YYSTACK_BYTES(N) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ + 2 * YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO. The source and destination do
+ not overlap. */
+# ifndef YYCOPY
+# if defined __GNUC__ && 1 < __GNUC__
+# define YYCOPY(To, From, Count) \
+ __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+# else
+# define YYCOPY(To, From, Count) \
+ do \
+ { \
+ YYSIZE_T yyi; \
+ for (yyi = 0; yyi < (Count); yyi++) \
+ (To)[yyi] = (From)[yyi]; \
+ } \
+ while (YYID (0))
+# endif
+# endif
+
+/* Relocate STACK from its old location to the new one. The
+ local variables YYSIZE and YYSTACKSIZE give the old and new number of
+ elements in the stack, and YYPTR gives the new location of the
+ stack. Advance YYPTR to a properly aligned location for the next
+ stack. */
+# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
+ do \
+ { \
+ YYSIZE_T yynewbytes; \
+ YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
+ Stack = &yyptr->Stack_alloc; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+ yyptr += yynewbytes / sizeof (*yyptr); \
+ } \
+ while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL 5
+/* YYLAST -- Last index in YYTABLE. */
+#define YYLAST 4005
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS 215
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS 88
+/* YYNRULES -- Number of rules. */
+#define YYNRULES 274
+/* YYNRULES -- Number of states. */
+#define YYNSTATES 409
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
+#define YYUNDEFTOK 2
+#define YYMAXUTOK 445
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
+static const yytype_uint8 yytranslate[] =
+{
+ 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 199, 2, 2, 2, 203, 206, 2,
+ 191, 192, 201, 197, 196, 198, 195, 202, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 210, 212,
+ 204, 211, 205, 209, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 193, 2, 194, 207, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 213, 208, 214, 200, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
+ 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
+ 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
+ 85, 86, 87, 88, 89, 90, 91, 92, 93, 94,
+ 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
+ 105, 106, 107, 108, 109, 110, 111, 112, 113, 114,
+ 115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
+ 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
+ 135, 136, 137, 138, 139, 140, 141, 142, 143, 144,
+ 145, 146, 147, 148, 149, 150, 151, 152, 153, 154,
+ 155, 156, 157, 158, 159, 160, 161, 162, 163, 164,
+ 165, 166, 167, 168, 169, 170, 171, 172, 173, 174,
+ 175, 176, 177, 178, 179, 180, 181, 182, 183, 184,
+ 185, 186, 187, 188, 189, 190
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+ YYRHS. */
+static const yytype_uint16 yyprhs[] =
+{
+ 0, 0, 3, 4, 9, 10, 14, 17, 20, 23,
+ 26, 27, 30, 36, 38, 41, 43, 45, 47, 49,
+ 51, 53, 57, 59, 64, 66, 70, 73, 76, 78,
+ 80, 82, 86, 89, 92, 95, 97, 100, 104, 107,
+ 109, 111, 113, 115, 118, 121, 124, 126, 128, 130,
+ 132, 134, 138, 142, 146, 148, 152, 156, 158, 162,
+ 166, 168, 172, 176, 180, 184, 186, 190, 194, 196,
+ 200, 202, 206, 208, 212, 214, 218, 220, 224, 226,
+ 230, 232, 238, 240, 244, 246, 248, 250, 252, 254,
+ 256, 258, 260, 262, 264, 266, 268, 272, 274, 277,
+ 280, 285, 288, 290, 292, 295, 299, 303, 306, 312,
+ 316, 319, 323, 326, 327, 329, 331, 333, 335, 337,
+ 341, 347, 354, 362, 371, 377, 379, 382, 387, 393,
+ 400, 408, 413, 416, 418, 421, 422, 424, 429, 431,
+ 435, 437, 439, 441, 443, 445, 447, 450, 453, 455,
+ 457, 460, 463, 466, 468, 471, 474, 476, 478, 481,
+ 483, 487, 492, 494, 496, 498, 500, 502, 504, 506,
+ 508, 510, 512, 514, 516, 518, 520, 522, 524, 526,
+ 528, 530, 532, 534, 536, 538, 540, 542, 544, 546,
+ 548, 550, 552, 554, 556, 558, 560, 562, 564, 566,
+ 568, 570, 572, 574, 576, 578, 580, 582, 584, 586,
+ 588, 590, 592, 594, 596, 598, 600, 602, 604, 606,
+ 612, 617, 619, 622, 626, 628, 632, 634, 639, 641,
+ 643, 645, 647, 649, 651, 653, 655, 657, 659, 661,
+ 664, 668, 670, 672, 675, 679, 681, 684, 686, 689,
+ 695, 699, 701, 703, 708, 714, 718, 721, 727, 735,
+ 742, 744, 746, 748, 749, 752, 756, 759, 762, 765,
+ 769, 772, 774, 776, 778
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yytype_int16 yyrhs[] =
+{
+ 216, 0, -1, -1, 218, 220, 217, 222, -1, -1,
+ 109, 78, 113, -1, 116, 113, -1, 117, 113, -1,
+ 118, 113, -1, 119, 113, -1, -1, 220, 221, -1,
+ 110, 76, 112, 76, 113, -1, 301, -1, 222, 301,
+ -1, 76, -1, 223, -1, 78, -1, 79, -1, 77,
+ -1, 80, -1, 191, 250, 192, -1, 224, -1, 225,
+ 193, 226, 194, -1, 227, -1, 225, 195, 76, -1,
+ 225, 84, -1, 225, 85, -1, 250, -1, 228, -1,
+ 229, -1, 225, 195, 229, -1, 231, 192, -1, 230,
+ 192, -1, 232, 74, -1, 232, -1, 232, 248, -1,
+ 231, 196, 248, -1, 233, 191, -1, 272, -1, 76,
+ -1, 81, -1, 225, -1, 84, 234, -1, 85, 234,
+ -1, 235, 234, -1, 197, -1, 198, -1, 199, -1,
+ 200, -1, 234, -1, 236, 201, 234, -1, 236, 202,
+ 234, -1, 236, 203, 234, -1, 236, -1, 237, 197,
+ 236, -1, 237, 198, 236, -1, 237, -1, 238, 82,
+ 237, -1, 238, 83, 237, -1, 238, -1, 239, 204,
+ 238, -1, 239, 205, 238, -1, 239, 86, 238, -1,
+ 239, 87, 238, -1, 239, -1, 240, 88, 239, -1,
+ 240, 89, 239, -1, 240, -1, 241, 206, 240, -1,
+ 241, -1, 242, 207, 241, -1, 242, -1, 243, 208,
+ 242, -1, 243, -1, 244, 90, 243, -1, 244, -1,
+ 245, 92, 244, -1, 245, -1, 246, 91, 245, -1,
+ 246, -1, 246, 209, 250, 210, 248, -1, 247, -1,
+ 234, 249, 248, -1, 211, -1, 93, -1, 94, -1,
+ 96, -1, 95, -1, 102, -1, 97, -1, 98, -1,
+ 99, -1, 100, -1, 101, -1, 248, -1, 250, 196,
+ 248, -1, 247, -1, 253, 212, -1, 261, 212, -1,
+ 108, 276, 273, 212, -1, 254, 192, -1, 256, -1,
+ 255, -1, 256, 258, -1, 255, 196, 258, -1, 263,
+ 76, 191, -1, 272, 76, -1, 272, 76, 193, 251,
+ 194, -1, 269, 259, 257, -1, 259, 257, -1, 269,
+ 259, 260, -1, 259, 260, -1, -1, 33, -1, 34,
+ -1, 35, -1, 272, -1, 262, -1, 261, 196, 76,
+ -1, 261, 196, 76, 193, 194, -1, 261, 196, 76,
+ 193, 251, 194, -1, 261, 196, 76, 193, 194, 211,
+ 282, -1, 261, 196, 76, 193, 251, 194, 211, 282,
+ -1, 261, 196, 76, 211, 282, -1, 263, -1, 263,
+ 76, -1, 263, 76, 193, 194, -1, 263, 76, 193,
+ 251, 194, -1, 263, 76, 193, 194, 211, 282, -1,
+ 263, 76, 193, 251, 194, 211, 282, -1, 263, 76,
+ 211, 282, -1, 103, 76, -1, 272, -1, 270, 272,
+ -1, -1, 265, -1, 120, 191, 266, 192, -1, 267,
+ -1, 266, 196, 267, -1, 76, -1, 40, -1, 39,
+ -1, 38, -1, 4, -1, 271, -1, 268, 270, -1,
+ 103, 270, -1, 4, -1, 3, -1, 264, 37, -1,
+ 32, 37, -1, 264, 33, -1, 34, -1, 32, 33,
+ -1, 32, 34, -1, 36, -1, 273, -1, 276, 273,
+ -1, 274, -1, 274, 193, 194, -1, 274, 193, 251,
+ 194, -1, 275, -1, 277, -1, 76, -1, 74, -1,
+ 6, -1, 7, -1, 8, -1, 5, -1, 29, -1,
+ 30, -1, 31, -1, 20, -1, 21, -1, 22, -1,
+ 23, -1, 24, -1, 25, -1, 26, -1, 27, -1,
+ 28, -1, 41, -1, 42, -1, 43, -1, 44, -1,
+ 45, -1, 46, -1, 47, -1, 48, -1, 49, -1,
+ 50, -1, 51, -1, 154, -1, 52, -1, 53, -1,
+ 54, -1, 55, -1, 156, -1, 56, -1, 57, -1,
+ 58, -1, 59, -1, 60, -1, 61, -1, 62, -1,
+ 63, -1, 64, -1, 65, -1, 66, -1, 67, -1,
+ 68, -1, 69, -1, 70, -1, 71, -1, 72, -1,
+ 106, -1, 105, -1, 104, -1, 73, 76, 213, 278,
+ 214, -1, 73, 213, 278, 214, -1, 279, -1, 278,
+ 279, -1, 272, 280, 212, -1, 281, -1, 280, 196,
+ 281, -1, 76, -1, 76, 193, 251, 194, -1, 248,
+ -1, 252, -1, 286, -1, 285, -1, 283, -1, 290,
+ -1, 291, -1, 294, -1, 295, -1, 296, -1, 300,
+ -1, 213, 214, -1, 213, 289, 214, -1, 288, -1,
+ 285, -1, 213, 214, -1, 213, 289, 214, -1, 284,
+ -1, 289, 284, -1, 212, -1, 250, 212, -1, 14,
+ 191, 250, 192, 292, -1, 284, 12, 284, -1, 284,
+ -1, 250, -1, 263, 76, 211, 282, -1, 17, 191,
+ 250, 192, 286, -1, 18, 250, 210, -1, 19, 210,
+ -1, 75, 191, 293, 192, 287, -1, 11, 284, 75,
+ 191, 250, 192, 212, -1, 13, 191, 297, 299, 192,
+ 287, -1, 290, -1, 283, -1, 293, -1, -1, 298,
+ 212, -1, 298, 212, 250, -1, 10, 212, -1, 9,
+ 212, -1, 16, 212, -1, 16, 250, 212, -1, 15,
+ 212, -1, 302, -1, 252, -1, 219, -1, 253, 288,
+ -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
+static const yytype_uint16 yyrline[] =
+{
+ 0, 214, 214, 213, 220, 222, 242, 243, 244, 245,
+ 248, 250, 254, 263, 271, 282, 286, 293, 300, 307,
+ 314, 321, 328, 329, 335, 339, 346, 352, 361, 365,
+ 369, 370, 379, 380, 384, 385, 389, 395, 407, 411,
+ 417, 424, 435, 436, 442, 448, 458, 459, 460, 461,
+ 465, 466, 472, 478, 487, 488, 494, 503, 504, 510,
+ 519, 520, 526, 532, 538, 547, 548, 554, 563, 564,
+ 573, 574, 583, 584, 593, 594, 603, 604, 613, 614,
+ 623, 624, 633, 634, 643, 644, 645, 646, 647, 648,
+ 649, 650, 651, 652, 653, 657, 661, 677, 681, 685,
+ 689, 703, 707, 708, 712, 717, 725, 736, 746, 761,
+ 768, 773, 784, 796, 797, 798, 799, 803, 807, 808,
+ 817, 826, 835, 844, 853, 866, 877, 886, 895, 904,
+ 913, 922, 931, 945, 952, 963, 964, 968, 975, 976,
+ 983, 1017, 1018, 1019, 1023, 1027, 1028, 1032, 1040, 1041,
+ 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1052, 1053, 1061,
+ 1062, 1068, 1077, 1083, 1089, 1098, 1099, 1100, 1101, 1102,
+ 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112,
+ 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1120, 1121, 1122,
+ 1123, 1124, 1125, 1126, 1127, 1128, 1129, 1130, 1131, 1132,
+ 1133, 1134, 1135, 1136, 1137, 1138, 1139, 1140, 1141, 1142,
+ 1143, 1144, 1145, 1146, 1147, 1148, 1152, 1163, 1174, 1188,
+ 1194, 1203, 1208, 1216, 1231, 1236, 1244, 1250, 1259, 1263,
+ 1269, 1270, 1274, 1275, 1276, 1277, 1278, 1279, 1280, 1284,
+ 1290, 1299, 1300, 1304, 1310, 1319, 1329, 1341, 1347, 1356,
+ 1365, 1370, 1378, 1382, 1396, 1400, 1401, 1405, 1412, 1419,
+ 1429, 1430, 1434, 1436, 1442, 1447, 1456, 1462, 1468, 1474,
+ 1480, 1489, 1490, 1491, 1495
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+ "$end", "error", "$undefined", "ATTRIBUTE", "CONST_TOK", "BOOL_TOK",
+ "FLOAT_TOK", "INT_TOK", "UINT_TOK", "BREAK", "CONTINUE", "DO", "ELSE",
+ "FOR", "IF", "DISCARD", "RETURN", "SWITCH", "CASE", "DEFAULT", "BVEC2",
+ "BVEC3", "BVEC4", "IVEC2", "IVEC3", "IVEC4", "UVEC2", "UVEC3", "UVEC4",
+ "VEC2", "VEC3", "VEC4", "CENTROID", "IN_TOK", "OUT_TOK", "INOUT_TOK",
+ "UNIFORM", "VARYING", "NOPERSPECTIVE", "FLAT", "SMOOTH", "MAT2X2",
+ "MAT2X3", "MAT2X4", "MAT3X2", "MAT3X3", "MAT3X4", "MAT4X2", "MAT4X3",
+ "MAT4X4", "SAMPLER1D", "SAMPLER2D", "SAMPLER3D", "SAMPLERCUBE",
+ "SAMPLER1DSHADOW", "SAMPLER2DSHADOW", "SAMPLERCUBESHADOW",
+ "SAMPLER1DARRAY", "SAMPLER2DARRAY", "SAMPLER1DARRAYSHADOW",
+ "SAMPLER2DARRAYSHADOW", "ISAMPLER1D", "ISAMPLER2D", "ISAMPLER3D",
+ "ISAMPLERCUBE", "ISAMPLER1DARRAY", "ISAMPLER2DARRAY", "USAMPLER1D",
+ "USAMPLER2D", "USAMPLER3D", "USAMPLERCUBE", "USAMPLER1DARRAY",
+ "USAMPLER2DARRAY", "STRUCT", "VOID_TOK", "WHILE", "IDENTIFIER",
+ "FLOATCONSTANT", "INTCONSTANT", "UINTCONSTANT", "BOOLCONSTANT",
+ "FIELD_SELECTION", "LEFT_OP", "RIGHT_OP", "INC_OP", "DEC_OP", "LE_OP",
+ "GE_OP", "EQ_OP", "NE_OP", "AND_OP", "OR_OP", "XOR_OP", "MUL_ASSIGN",
+ "DIV_ASSIGN", "ADD_ASSIGN", "MOD_ASSIGN", "LEFT_ASSIGN", "RIGHT_ASSIGN",
+ "AND_ASSIGN", "XOR_ASSIGN", "OR_ASSIGN", "SUB_ASSIGN", "INVARIANT",
+ "LOWP", "MEDIUMP", "HIGHP", "SUPERP", "PRECISION", "VERSION",
+ "EXTENSION", "LINE", "COLON", "EOL", "INTERFACE", "OUTPUT",
+ "PRAGMA_DEBUG_ON", "PRAGMA_DEBUG_OFF", "PRAGMA_OPTIMIZE_ON",
+ "PRAGMA_OPTIMIZE_OFF", "LAYOUT_TOK", "ASM", "CLASS", "UNION", "ENUM",
+ "TYPEDEF", "TEMPLATE", "THIS", "PACKED_TOK", "GOTO", "INLINE_TOK",
+ "NOINLINE", "VOLATILE", "PUBLIC_TOK", "STATIC", "EXTERN", "EXTERNAL",
+ "LONG_TOK", "SHORT_TOK", "DOUBLE_TOK", "HALF", "FIXED_TOK", "UNSIGNED",
+ "INPUT_TOK", "OUPTUT", "HVEC2", "HVEC3", "HVEC4", "DVEC2", "DVEC3",
+ "DVEC4", "FVEC2", "FVEC3", "FVEC4", "SAMPLER2DRECT", "SAMPLER3DRECT",
+ "SAMPLER2DRECTSHADOW", "SIZEOF", "CAST", "NAMESPACE", "USING",
+ "ERROR_TOK", "COMMON", "PARTITION", "ACTIVE", "SAMPLERBUFFER", "FILTER",
+ "IMAGE1D", "IMAGE2D", "IMAGE3D", "IMAGECUBE", "IMAGE1DARRAY",
+ "IMAGE2DARRAY", "IIMAGE1D", "IIMAGE2D", "IIMAGE3D", "IIMAGECUBE",
+ "IIMAGE1DARRAY", "IIMAGE2DARRAY", "UIMAGE1D", "UIMAGE2D", "UIMAGE3D",
+ "UIMAGECUBE", "UIMAGE1DARRAY", "UIMAGE2DARRAY", "IMAGE1DSHADOW",
+ "IMAGE2DSHADOW", "IMAGEBUFFER", "IIMAGEBUFFER", "UIMAGEBUFFER",
+ "ROW_MAJOR", "'('", "')'", "'['", "']'", "'.'", "','", "'+'", "'-'",
+ "'!'", "'~'", "'*'", "'/'", "'%'", "'<'", "'>'", "'&'", "'^'", "'|'",
+ "'?'", "':'", "'='", "';'", "'{'", "'}'", "$accept", "translation_unit",
+ "$@1", "version_statement", "pragma_statement",
+ "extension_statement_list", "extension_statement",
+ "external_declaration_list", "variable_identifier", "primary_expression",
+ "postfix_expression", "integer_expression", "function_call",
+ "function_call_or_method", "function_call_generic",
+ "function_call_header_no_parameters",
+ "function_call_header_with_parameters", "function_call_header",
+ "function_identifier", "unary_expression", "unary_operator",
+ "multiplicative_expression", "additive_expression", "shift_expression",
+ "relational_expression", "equality_expression", "and_expression",
+ "exclusive_or_expression", "inclusive_or_expression",
+ "logical_and_expression", "logical_xor_expression",
+ "logical_or_expression", "conditional_expression",
+ "assignment_expression", "assignment_operator", "expression",
+ "constant_expression", "declaration", "function_prototype",
+ "function_declarator", "function_header_with_parameters",
+ "function_header", "parameter_declarator", "parameter_declaration",
+ "parameter_qualifier", "parameter_type_specifier",
+ "init_declarator_list", "single_declaration", "fully_specified_type",
+ "opt_layout_qualifier", "layout_qualifier", "layout_qualifier_id_list",
+ "layout_qualifier_id", "interpolation_qualifier",
+ "parameter_type_qualifier", "type_qualifier", "storage_qualifier",
+ "type_specifier", "type_specifier_no_prec", "type_specifier_nonarray",
+ "basic_type_specifier_nonarray", "precision_qualifier",
+ "struct_specifier", "struct_declaration_list", "struct_declaration",
+ "struct_declarator_list", "struct_declarator", "initializer",
+ "declaration_statement", "statement", "simple_statement",
+ "compound_statement", "statement_no_new_scope",
+ "compound_statement_no_new_scope", "statement_list",
+ "expression_statement", "selection_statement",
+ "selection_rest_statement", "condition", "switch_statement",
+ "case_label", "iteration_statement", "for_init_statement",
+ "conditionopt", "for_rest_statement", "jump_statement",
+ "external_declaration", "function_definition", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+ token YYLEX-NUM. */
+static const yytype_uint16 yytoknum[] =
+{
+ 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
+ 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
+ 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
+ 285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
+ 295, 296, 297, 298, 299, 300, 301, 302, 303, 304,
+ 305, 306, 307, 308, 309, 310, 311, 312, 313, 314,
+ 315, 316, 317, 318, 319, 320, 321, 322, 323, 324,
+ 325, 326, 327, 328, 329, 330, 331, 332, 333, 334,
+ 335, 336, 337, 338, 339, 340, 341, 342, 343, 344,
+ 345, 346, 347, 348, 349, 350, 351, 352, 353, 354,
+ 355, 356, 357, 358, 359, 360, 361, 362, 363, 364,
+ 365, 366, 367, 368, 369, 370, 371, 372, 373, 374,
+ 375, 376, 377, 378, 379, 380, 381, 382, 383, 384,
+ 385, 386, 387, 388, 389, 390, 391, 392, 393, 394,
+ 395, 396, 397, 398, 399, 400, 401, 402, 403, 404,
+ 405, 406, 407, 408, 409, 410, 411, 412, 413, 414,
+ 415, 416, 417, 418, 419, 420, 421, 422, 423, 424,
+ 425, 426, 427, 428, 429, 430, 431, 432, 433, 434,
+ 435, 436, 437, 438, 439, 440, 441, 442, 443, 444,
+ 445, 40, 41, 91, 93, 46, 44, 43, 45, 33,
+ 126, 42, 47, 37, 60, 62, 38, 94, 124, 63,
+ 58, 61, 59, 123, 125
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
+static const yytype_uint16 yyr1[] =
+{
+ 0, 215, 217, 216, 218, 218, 219, 219, 219, 219,
+ 220, 220, 221, 222, 222, 223, 224, 224, 224, 224,
+ 224, 224, 225, 225, 225, 225, 225, 225, 226, 227,
+ 228, 228, 229, 229, 230, 230, 231, 231, 232, 233,
+ 233, 233, 234, 234, 234, 234, 235, 235, 235, 235,
+ 236, 236, 236, 236, 237, 237, 237, 238, 238, 238,
+ 239, 239, 239, 239, 239, 240, 240, 240, 241, 241,
+ 242, 242, 243, 243, 244, 244, 245, 245, 246, 246,
+ 247, 247, 248, 248, 249, 249, 249, 249, 249, 249,
+ 249, 249, 249, 249, 249, 250, 250, 251, 252, 252,
+ 252, 253, 254, 254, 255, 255, 256, 257, 257, 258,
+ 258, 258, 258, 259, 259, 259, 259, 260, 261, 261,
+ 261, 261, 261, 261, 261, 262, 262, 262, 262, 262,
+ 262, 262, 262, 263, 263, 264, 264, 265, 266, 266,
+ 267, 268, 268, 268, 269, 270, 270, 270, 271, 271,
+ 271, 271, 271, 271, 271, 271, 271, 272, 272, 273,
+ 273, 273, 274, 274, 274, 275, 275, 275, 275, 275,
+ 275, 275, 275, 275, 275, 275, 275, 275, 275, 275,
+ 275, 275, 275, 275, 275, 275, 275, 275, 275, 275,
+ 275, 275, 275, 275, 275, 275, 275, 275, 275, 275,
+ 275, 275, 275, 275, 275, 275, 275, 275, 275, 275,
+ 275, 275, 275, 275, 275, 275, 276, 276, 276, 277,
+ 277, 278, 278, 279, 280, 280, 281, 281, 282, 283,
+ 284, 284, 285, 285, 285, 285, 285, 285, 285, 286,
+ 286, 287, 287, 288, 288, 289, 289, 290, 290, 291,
+ 292, 292, 293, 293, 294, 295, 295, 296, 296, 296,
+ 297, 297, 298, 298, 299, 299, 300, 300, 300, 300,
+ 300, 301, 301, 301, 302
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
+static const yytype_uint8 yyr2[] =
+{
+ 0, 2, 0, 4, 0, 3, 2, 2, 2, 2,
+ 0, 2, 5, 1, 2, 1, 1, 1, 1, 1,
+ 1, 3, 1, 4, 1, 3, 2, 2, 1, 1,
+ 1, 3, 2, 2, 2, 1, 2, 3, 2, 1,
+ 1, 1, 1, 2, 2, 2, 1, 1, 1, 1,
+ 1, 3, 3, 3, 1, 3, 3, 1, 3, 3,
+ 1, 3, 3, 3, 3, 1, 3, 3, 1, 3,
+ 1, 3, 1, 3, 1, 3, 1, 3, 1, 3,
+ 1, 5, 1, 3, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 3, 1, 2, 2,
+ 4, 2, 1, 1, 2, 3, 3, 2, 5, 3,
+ 2, 3, 2, 0, 1, 1, 1, 1, 1, 3,
+ 5, 6, 7, 8, 5, 1, 2, 4, 5, 6,
+ 7, 4, 2, 1, 2, 0, 1, 4, 1, 3,
+ 1, 1, 1, 1, 1, 1, 2, 2, 1, 1,
+ 2, 2, 2, 1, 2, 2, 1, 1, 2, 1,
+ 3, 4, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 5,
+ 4, 1, 2, 3, 1, 3, 1, 4, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2,
+ 3, 1, 1, 2, 3, 1, 2, 1, 2, 5,
+ 3, 1, 1, 4, 5, 3, 2, 5, 7, 6,
+ 1, 1, 1, 0, 2, 3, 2, 2, 2, 3,
+ 2, 1, 1, 1, 2
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+ STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+ means the default is an error. */
+static const yytype_uint16 yydefact[] =
+{
+ 4, 0, 0, 10, 0, 1, 2, 5, 0, 135,
+ 11, 0, 149, 148, 169, 166, 167, 168, 173, 174,
+ 175, 176, 177, 178, 179, 180, 181, 170, 171, 172,
+ 0, 153, 156, 143, 142, 141, 182, 183, 184, 185,
+ 186, 187, 188, 189, 190, 191, 192, 194, 195, 196,
+ 197, 199, 200, 201, 202, 203, 204, 205, 206, 207,
+ 208, 209, 210, 211, 212, 213, 214, 215, 0, 165,
+ 164, 135, 218, 217, 216, 0, 0, 0, 0, 0,
+ 0, 193, 198, 273, 135, 272, 0, 0, 103, 113,
+ 0, 118, 125, 0, 136, 135, 0, 145, 133, 157,
+ 159, 162, 0, 163, 13, 271, 0, 154, 155, 151,
+ 0, 0, 132, 135, 147, 0, 6, 7, 8, 9,
+ 0, 14, 98, 135, 274, 101, 113, 144, 114, 115,
+ 116, 104, 0, 113, 0, 99, 126, 152, 150, 146,
+ 134, 0, 158, 0, 0, 0, 0, 221, 0, 140,
+ 0, 138, 0, 0, 135, 0, 0, 0, 0, 0,
+ 0, 0, 0, 15, 19, 17, 18, 20, 41, 0,
+ 0, 0, 46, 47, 48, 49, 247, 135, 243, 16,
+ 22, 42, 24, 29, 30, 0, 0, 35, 0, 50,
+ 0, 54, 57, 60, 65, 68, 70, 72, 74, 76,
+ 78, 80, 82, 95, 0, 229, 0, 133, 232, 245,
+ 231, 230, 135, 233, 234, 235, 236, 237, 238, 105,
+ 110, 112, 117, 0, 119, 106, 0, 0, 160, 50,
+ 97, 0, 39, 12, 0, 226, 0, 224, 220, 222,
+ 100, 137, 0, 267, 266, 0, 135, 0, 270, 268,
+ 0, 0, 0, 256, 135, 43, 44, 0, 239, 135,
+ 26, 27, 0, 0, 33, 32, 0, 165, 36, 38,
+ 85, 86, 88, 87, 90, 91, 92, 93, 94, 89,
+ 84, 0, 45, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 248, 244, 246, 107, 109, 111,
+ 0, 0, 127, 0, 228, 131, 161, 219, 0, 0,
+ 223, 139, 0, 261, 260, 135, 0, 269, 0, 255,
+ 252, 0, 0, 21, 240, 0, 28, 25, 31, 37,
+ 83, 51, 52, 53, 55, 56, 58, 59, 63, 64,
+ 61, 62, 66, 67, 69, 71, 73, 75, 77, 79,
+ 0, 96, 0, 120, 0, 124, 0, 128, 0, 225,
+ 0, 262, 0, 0, 135, 0, 0, 135, 23, 0,
+ 0, 0, 121, 129, 0, 227, 0, 264, 135, 251,
+ 249, 254, 0, 242, 257, 241, 81, 108, 122, 0,
+ 130, 0, 265, 259, 135, 253, 123, 258, 250
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yytype_int16 yydefgoto[] =
+{
+ -1, 2, 9, 3, 83, 6, 10, 84, 179, 180,
+ 181, 335, 182, 183, 184, 185, 186, 187, 188, 189,
+ 190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
+ 200, 201, 202, 203, 281, 204, 231, 205, 206, 87,
+ 88, 89, 220, 131, 132, 221, 90, 91, 92, 93,
+ 94, 150, 151, 95, 133, 96, 97, 232, 99, 100,
+ 101, 102, 103, 146, 147, 236, 237, 315, 208, 209,
+ 210, 211, 394, 395, 212, 213, 214, 390, 332, 215,
+ 216, 217, 325, 372, 373, 218, 104, 105
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+ STATE-NUM. */
+#define YYPACT_NINF -329
+static const yytype_int16 yypact[] =
+{
+ -58, -22, 72, -329, -28, -329, -15, -329, 22, 3589,
+ -329, -4, -329, -329, -329, -329, -329, -329, -329, -329,
+ -329, -329, -329, -329, -329, -329, -329, -329, -329, -329,
+ 44, -329, -329, -329, -329, -329, -329, -329, -329, -329,
+ -329, -329, -329, -329, -329, -329, -329, -329, -329, -329,
+ -329, -329, -329, -329, -329, -329, -329, -329, -329, -329,
+ -329, -329, -329, -329, -329, -329, -329, -329, -72, -329,
+ -329, 6, -329, -329, -329, 14, -8, 9, 11, 26,
+ -64, -329, -329, -329, 3470, -329, -159, -23, -12, -2,
+ -149, -329, 105, 57, -329, 140, 3777, -329, -329, -329,
+ 15, -329, 3849, -329, -329, -329, 131, -329, -329, -329,
+ -3, 3777, -329, 140, -329, 3849, -329, -329, -329, -329,
+ 133, -329, -329, 383, -329, -329, 32, -329, -329, -329,
+ -329, -329, 3777, 158, 135, -329, -150, -329, -329, -329,
+ -329, 2565, -329, 100, 3777, 141, 1954, -329, 4, -329,
+ -95, -329, 7, 8, 1231, 27, 31, 12, 2186, 37,
+ 3108, 13, 39, -59, -329, -329, -329, -329, -329, 3108,
+ 3108, 3108, -329, -329, -329, -329, -329, 595, -329, -329,
+ -329, -55, -329, -329, -329, 41, -92, 3289, 40, -75,
+ 3108, -7, -118, 51, -74, 109, 28, 29, 30, 145,
+ 147, -84, -329, -329, -148, -329, 34, 49, -329, -329,
+ -329, -329, 807, -329, -329, -329, -329, -329, -329, -329,
+ -329, -329, 166, 3777, -143, -329, 2746, 3108, -329, -329,
+ -329, 53, -329, -329, 2070, 55, -139, -329, -329, -329,
+ -329, -329, 133, -329, -329, 174, 1640, 3108, -329, -329,
+ -138, 3108, -134, -329, 2384, -329, -329, -81, -329, 1019,
+ -329, -329, 3108, 3705, -329, -329, 3108, 61, -329, -329,
+ -329, -329, -329, -329, -329, -329, -329, -329, -329, -329,
+ -329, 3108, -329, 3108, 3108, 3108, 3108, 3108, 3108, 3108,
+ 3108, 3108, 3108, 3108, 3108, 3108, 3108, 3108, 3108, 3108,
+ 3108, 3108, 3108, 3108, -329, -329, -329, 62, -329, -329,
+ 2927, 3108, 43, 63, -329, -329, -329, -329, 3108, 141,
+ -329, -329, 65, -329, -329, 1838, -80, -329, -79, -329,
+ 66, 182, 69, -329, -329, 70, 66, 74, -329, -329,
+ -329, -329, -329, -329, -7, -7, -118, -118, 51, 51,
+ 51, 51, -74, -74, 109, 28, 29, 30, 145, 147,
+ -127, -329, 3108, 52, 75, -329, 3108, 59, 77, -329,
+ 3108, -329, 54, 76, 1231, 60, 64, 1442, -329, 3108,
+ 78, 3108, 67, -329, 3108, -329, -50, 3108, 1442, 262,
+ -329, -329, 3108, -329, -329, -329, -329, -329, -329, 3108,
+ -329, 71, 66, -329, 1231, -329, -329, -329, -329
+};
+
+/* YYPGOTO[NTERM-NUM]. */
+static const yytype_int16 yypgoto[] =
+{
+ -329, -329, -329, -329, -329, -329, -329, -329, -329, -329,
+ -329, -329, -329, -329, 16, -329, -329, -329, -329, -135,
+ -329, -87, -83, -104, -93, -20, -16, -21, -13, -11,
+ -17, -329, -133, -99, -329, -155, -189, 2, 5, -329,
+ -329, -329, 68, 161, 155, 73, -329, -329, -215, -329,
+ -329, -329, 48, -329, -329, -43, -329, -9, -31, -329,
+ -329, 217, -329, 150, -131, -329, -24, -140, 56, -153,
+ -328, -78, -90, 213, 124, 58, -329, -329, -19, -329,
+ -329, -329, -329, -329, -329, -329, 219, -329
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
+ positive, shift that token. If negative, reduce the rule which
+ number is the opposite. If zero, do what YYDEFACT says.
+ If YYTABLE_NINF, syntax error. */
+#define YYTABLE_NINF -264
+static const yytype_int16 yytable[] =
+{
+ 98, 245, 127, 250, 110, 252, 229, 301, 230, 12,
+ 13, 85, 290, 291, 86, 239, 257, -164, 270, 271,
+ 272, 273, 274, 275, 276, 277, 278, 279, 114, 260,
+ 261, 128, 129, 130, 255, 256, 127, 313, 30, 331,
+ 31, 225, 32, 226, 33, 34, 35, 134, 303, 393,
+ 310, 1, 139, 122, 123, 282, 4, 319, 303, 306,
+ 393, 227, 303, 135, 304, 128, 129, 130, 311, 303,
+ 114, 142, 5, 320, 327, 98, 329, 107, 108, 286,
+ 287, 109, 112, 379, 148, 7, 85, 140, 268, 86,
+ 137, 229, 326, 230, 138, 8, 328, 241, 11, 330,
+ 265, 242, 145, 239, 266, 116, 306, 336, 106, 113,
+ 331, 333, 374, 375, 207, 303, 303, 303, 72, 73,
+ 74, 364, 117, 222, 118, 302, 80, 120, 314, 368,
+ 292, 293, -40, 288, 289, 145, 280, 145, 262, 119,
+ 263, 111, 401, 12, 13, 207, 303, 360, 341, 342,
+ 343, 229, 229, 229, 229, 229, 229, 229, 229, 229,
+ 229, 229, 229, 229, 229, 229, 229, 339, 207, 125,
+ 330, 365, 30, 380, 31, 229, 32, 230, 33, 34,
+ 35, 136, 340, 229, 126, 230, 348, 349, 350, 351,
+ -102, 128, 129, 130, 283, 284, 285, 294, 295, 344,
+ 345, 352, 353, 207, 361, 346, 347, 143, 141, 149,
+ 144, 224, 314, 233, 222, 386, 240, 235, 246, 243,
+ 244, 389, 247, 253, 248, 145, 383, 229, 251, 230,
+ 254, 269, 402, 264, 296, 299, 297, 207, 298, 300,
+ -39, 398, 307, 113, 400, 207, 122, 316, 318, 322,
+ 207, 408, 405, -34, 366, 362, 370, 367, 376, 406,
+ 80, 377, 303, 381, 378, -40, 387, 314, 388, 382,
+ 384, 385, 397, 177, 404, 392, 354, 356, 399, 338,
+ 396, 355, 314, 407, 359, 314, 357, 219, 223, 358,
+ 321, 308, 115, 314, 234, 369, 309, 391, 403, 124,
+ 314, 259, 323, 121, 324, 0, 371, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 207, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 207, 0, 0, 207, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 207,
+ 0, 0, 0, 0, 0, 0, 12, 13, 14, 15,
+ 16, 17, 152, 153, 154, 207, 155, 156, 157, 158,
+ 159, 160, 161, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 0, 31, 0, 32,
+ 0, 33, 34, 35, 36, 37, 38, 39, 40, 41,
+ 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
+ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
+ 62, 63, 64, 65, 66, 67, 68, 69, 162, 163,
+ 164, 165, 166, 167, 168, 0, 0, 169, 170, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 71, 72, 73, 74,
+ 0, 75, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 80, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 81, 0, 82,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 171, 0, 0, 0, 0, 0,
+ 172, 173, 174, 175, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 176, 177, 178, 12, 13,
+ 14, 15, 16, 17, 152, 153, 154, 0, 155, 156,
+ 157, 158, 159, 160, 161, 18, 19, 20, 21, 22,
+ 23, 24, 25, 26, 27, 28, 29, 30, 0, 31,
+ 0, 32, 0, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+ 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+ 60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+ 162, 163, 164, 165, 166, 167, 168, 0, 0, 169,
+ 170, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 71, 72,
+ 73, 74, 0, 75, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 80, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 81,
+ 0, 82, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 171, 0, 0, 0,
+ 0, 0, 172, 173, 174, 175, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 176, 177, 258,
+ 12, 13, 14, 15, 16, 17, 152, 153, 154, 0,
+ 155, 156, 157, 158, 159, 160, 161, 18, 19, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 0, 31, 0, 32, 0, 33, 34, 35, 36, 37,
+ 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
+ 68, 69, 162, 163, 164, 165, 166, 167, 168, 0,
+ 0, 169, 170, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 71, 72, 73, 74, 0, 75, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 80, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 81, 0, 82, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 171, 0,
+ 0, 0, 0, 0, 172, 173, 174, 175, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 176,
+ 177, 305, 12, 13, 14, 15, 16, 17, 152, 153,
+ 154, 0, 155, 156, 157, 158, 159, 160, 161, 18,
+ 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
+ 29, 30, 0, 31, 0, 32, 0, 33, 34, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
+ 46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63, 64, 65,
+ 66, 67, 68, 69, 162, 163, 164, 165, 166, 167,
+ 168, 0, 0, 169, 170, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 71, 72, 73, 74, 0, 75, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 80,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 81, 0, 82, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 171, 0, 0, 0, 0, 0, 172, 173, 174, 175,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 176, 177, 334, 12, 13, 14, 15, 16, 17,
+ 152, 153, 154, 0, 155, 156, 157, 158, 159, 160,
+ 161, 18, 19, 20, 21, 22, 23, 24, 25, 26,
+ 27, 28, 29, 30, 0, 31, 0, 32, 0, 33,
+ 34, 35, 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 46, 47, 48, 49, 50, 51, 52, 53,
+ 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
+ 64, 65, 66, 67, 68, 69, 162, 163, 164, 165,
+ 166, 167, 168, 0, 0, 169, 170, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 71, 72, 73, 74, 0, 75,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 80, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 81, 0, 82, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 171, 0, 0, 0, 0, 0, 172, 173,
+ 174, 175, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 176, 177, 12, 13, 14, 15, 16,
+ 17, 152, 153, 154, 0, 155, 156, 157, 158, 159,
+ 160, 161, 18, 19, 20, 21, 22, 23, 24, 25,
+ 26, 27, 28, 29, 30, 0, 31, 0, 32, 0,
+ 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
+ 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
+ 63, 64, 65, 66, 67, 68, 69, 162, 163, 164,
+ 165, 166, 167, 168, 0, 0, 169, 170, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 71, 72, 73, 74, 0,
+ 75, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 80, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 81, 0, 82, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 171, 0, 0, 0, 0, 0, 172,
+ 173, 174, 175, 12, 13, 14, 15, 16, 17, 0,
+ 0, 0, 0, 0, 176, 123, 0, 0, 0, 0,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 0, 31, 0, 32, 0, 33, 34,
+ 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 0, 163, 164, 165, 166,
+ 167, 168, 0, 0, 169, 170, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 71, 72, 73, 74, 0, 75, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 80, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 81, 0, 82, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 171, 0, 0, 0, 0, 0, 172, 173, 174,
+ 175, 12, 13, 14, 15, 16, 17, 0, 0, 0,
+ 0, 0, 176, 0, 0, 0, 0, 0, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+ 30, 0, 31, 0, 32, 0, 33, 34, 35, 36,
+ 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
+ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
+ 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,
+ 67, 68, 69, 0, 163, 164, 165, 166, 167, 168,
+ 0, 0, 169, 170, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 113, 72, 73, 74, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 80, 14,
+ 15, 16, 17, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 0, 0, 0, 0,
+ 0, 0, 81, 0, 82, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+ 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+ 61, 62, 63, 64, 65, 66, 67, 68, 69, 171,
+ 70, 0, 0, 0, 0, 172, 173, 174, 175, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ -263, 0, 0, 0, 0, 0, 0, 0, 72, 73,
+ 74, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 14, 15, 16, 17, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 0, 0, 0, 0, 0, 0, 81, 0,
+ 82, 36, 37, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 0, 70, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 238, 0,
+ 0, 0, 0, 0, 72, 73, 74, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 14, 15, 16, 17, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 18, 19, 20, 21,
+ 22, 23, 24, 25, 26, 27, 28, 29, 0, 0,
+ 0, 0, 0, 0, 81, 0, 82, 36, 37, 38,
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+ 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
+ 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,
+ 69, 0, 163, 164, 165, 166, 167, 168, 0, 0,
+ 169, 170, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 317, 0, 0, 0, 0, 0,
+ 72, 73, 74, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 81, 0, 82, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 171, 0, 0,
+ 0, 0, 0, 172, 173, 174, 175, 12, 13, 14,
+ 15, 16, 17, 0, 0, 0, 0, 0, 249, 0,
+ 0, 0, 0, 0, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 0, 31, 0,
+ 32, 0, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+ 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+ 61, 62, 63, 64, 65, 66, 67, 68, 69, 0,
+ 163, 164, 165, 166, 167, 168, 0, 0, 169, 170,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 113, 72, 73,
+ 74, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 80, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 81, 0,
+ 82, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 14, 15, 16, 17, 0, 171, 0, 0, 0, 0,
+ 0, 172, 173, 174, 175, 18, 19, 20, 21, 22,
+ 23, 24, 25, 26, 27, 28, 29, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+ 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+ 60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+ 0, 163, 164, 165, 166, 167, 168, 0, 0, 169,
+ 170, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 72,
+ 73, 74, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 81,
+ 0, 82, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 14, 15, 16, 17, 0, 171, 0, 0, 228,
+ 0, 0, 172, 173, 174, 175, 18, 19, 20, 21,
+ 22, 23, 24, 25, 26, 27, 28, 29, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 36, 37, 38,
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+ 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
+ 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,
+ 69, 0, 163, 164, 165, 166, 167, 168, 0, 0,
+ 169, 170, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 72, 73, 74, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 81, 0, 82, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 14, 15, 16, 17, 0, 171, 0, 0,
+ 312, 0, 0, 172, 173, 174, 175, 18, 19, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 36, 37,
+ 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
+ 68, 69, 0, 163, 164, 165, 166, 167, 168, 0,
+ 0, 169, 170, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 72, 73, 74, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 81, 0, 82, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 14, 15, 16, 17, 0, 171, 0,
+ 0, 363, 0, 0, 172, 173, 174, 175, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 36,
+ 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
+ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
+ 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,
+ 67, 68, 69, 0, 163, 164, 165, 166, 167, 168,
+ 0, 0, 169, 170, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 72, 73, 74, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 81, 0, 82, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 14, 15, 16, 17, 0, 171,
+ 0, 0, 0, 0, 0, 172, 173, 174, 175, 18,
+ 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
+ 29, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
+ 46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63, 64, 65,
+ 66, 67, 68, 267, 0, 163, 164, 165, 166, 167,
+ 168, 0, 0, 169, 170, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 72, 73, 74, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 81, 0, 82, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ -3, 0, 0, 12, 13, 14, 15, 16, 17, 0,
+ 171, 0, 0, 0, 0, 0, 172, 173, 174, 175,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+ 28, 29, 30, 0, 31, 0, 32, 0, 33, 34,
+ 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 0, 70, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 71, 72, 73, 74, 0, 75, 0,
+ 0, 0, 0, 0, 0, 0, 76, 77, 78, 79,
+ 80, 0, 12, 13, 14, 15, 16, 17, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 18,
+ 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
+ 29, 30, 0, 31, 81, 32, 82, 33, 34, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
+ 46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63, 64, 65,
+ 66, 67, 68, 69, 0, 70, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 71, 72, 73, 74, 0, 75, 0, 0,
+ 0, 0, 0, 0, 0, 76, 77, 78, 79, 80,
+ 14, 15, 16, 17, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 18, 19, 20, 21, 22,
+ 23, 24, 25, 26, 27, 28, 29, 0, 0, 0,
+ 0, 0, 0, 81, 0, 82, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+ 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+ 60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+ 0, 337, 14, 15, 16, 17, 168, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 18, 19, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 72,
+ 73, 74, 0, 0, 0, 0, 0, 0, 36, 37,
+ 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
+ 68, 69, 0, 70, 14, 15, 16, 17, 0, 81,
+ 0, 82, 0, 0, 0, 0, 0, 0, 0, 18,
+ 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
+ 29, 72, 73, 74, 0, 0, 0, 0, 0, 0,
+ 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
+ 46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63, 64, 65,
+ 66, 67, 68, 69, 0, 70, 0, 0, 0, 0,
+ 0, 81, 0, 82, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 81, 0, 82
+};
+
+static const yytype_int16 yycheck[] =
+{
+ 9, 154, 4, 158, 76, 160, 141, 91, 141, 3,
+ 4, 9, 86, 87, 9, 146, 171, 76, 93, 94,
+ 95, 96, 97, 98, 99, 100, 101, 102, 71, 84,
+ 85, 33, 34, 35, 169, 170, 4, 226, 32, 254,
+ 34, 191, 36, 193, 38, 39, 40, 196, 196, 377,
+ 193, 109, 95, 212, 213, 190, 78, 196, 196, 212,
+ 388, 211, 196, 212, 212, 33, 34, 35, 211, 196,
+ 113, 102, 0, 212, 212, 84, 210, 33, 34, 197,
+ 198, 37, 76, 210, 115, 113, 84, 96, 187, 84,
+ 33, 226, 247, 226, 37, 110, 251, 192, 76, 254,
+ 192, 196, 111, 234, 196, 113, 259, 262, 112, 103,
+ 325, 192, 192, 192, 123, 196, 196, 196, 104, 105,
+ 106, 310, 113, 132, 113, 209, 120, 191, 227, 318,
+ 204, 205, 191, 82, 83, 144, 211, 146, 193, 113,
+ 195, 213, 192, 3, 4, 154, 196, 302, 283, 284,
+ 285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
+ 295, 296, 297, 298, 299, 300, 301, 266, 177, 192,
+ 325, 311, 32, 362, 34, 310, 36, 310, 38, 39,
+ 40, 76, 281, 318, 196, 318, 290, 291, 292, 293,
+ 192, 33, 34, 35, 201, 202, 203, 88, 89, 286,
+ 287, 294, 295, 212, 303, 288, 289, 76, 193, 76,
+ 213, 76, 311, 113, 223, 370, 212, 76, 191, 212,
+ 212, 374, 191, 210, 212, 234, 366, 362, 191, 362,
+ 191, 191, 387, 192, 206, 90, 207, 246, 208, 92,
+ 191, 381, 76, 103, 384, 254, 212, 194, 193, 75,
+ 259, 404, 392, 192, 211, 193, 191, 194, 76, 399,
+ 120, 192, 196, 211, 194, 191, 212, 366, 192, 194,
+ 211, 194, 194, 213, 12, 211, 296, 298, 211, 263,
+ 379, 297, 381, 212, 301, 384, 299, 126, 133, 300,
+ 242, 223, 75, 392, 144, 319, 223, 375, 388, 86,
+ 399, 177, 246, 84, 246, -1, 325, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, 325, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, 374, -1, -1, 377, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, 388,
+ -1, -1, -1, -1, -1, -1, 3, 4, 5, 6,
+ 7, 8, 9, 10, 11, 404, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
+ 27, 28, 29, 30, 31, 32, -1, 34, -1, 36,
+ -1, 38, 39, 40, 41, 42, 43, 44, 45, 46,
+ 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
+ 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,
+ 67, 68, 69, 70, 71, 72, 73, 74, 75, 76,
+ 77, 78, 79, 80, 81, -1, -1, 84, 85, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, 103, 104, 105, 106,
+ -1, 108, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, 120, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, 154, -1, 156,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, 191, -1, -1, -1, -1, -1,
+ 197, 198, 199, 200, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, 212, 213, 214, 3, 4,
+ 5, 6, 7, 8, 9, 10, 11, -1, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, -1, 34,
+ -1, 36, -1, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
+ 75, 76, 77, 78, 79, 80, 81, -1, -1, 84,
+ 85, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, 103, 104,
+ 105, 106, -1, 108, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, 120, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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+ 70, 71, 72, 73, 74, -1, 76, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, 103, 104, 105, 106, -1, 108, -1,
+ -1, -1, -1, -1, -1, -1, 116, 117, 118, 119,
+ 120, -1, 3, 4, 5, 6, 7, 8, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 31, 32, -1, 34, 154, 36, 156, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+ 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+ 61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
+ 71, 72, 73, 74, -1, 76, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, 103, 104, 105, 106, -1, 108, -1, -1,
+ -1, -1, -1, -1, -1, 116, 117, 118, 119, 120,
+ 5, 6, 7, 8, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, -1, -1, -1,
+ -1, -1, -1, 154, -1, 156, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
+ -1, 76, 5, 6, 7, 8, 81, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, 20, 21, 22,
+ 23, 24, 25, 26, 27, 28, 29, 30, 31, 104,
+ 105, 106, -1, -1, -1, -1, -1, -1, 41, 42,
+ 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
+ 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
+ 63, 64, 65, 66, 67, 68, 69, 70, 71, 72,
+ 73, 74, -1, 76, 5, 6, 7, 8, -1, 154,
+ -1, 156, -1, -1, -1, -1, -1, -1, -1, 20,
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 31, 104, 105, 106, -1, -1, -1, -1, -1, -1,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+ 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+ 61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
+ 71, 72, 73, 74, -1, 76, -1, -1, -1, -1,
+ -1, 154, -1, 156, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, 154, -1, 156
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+ symbol of state STATE-NUM. */
+static const yytype_uint16 yystos[] =
+{
+ 0, 109, 216, 218, 78, 0, 220, 113, 110, 217,
+ 221, 76, 3, 4, 5, 6, 7, 8, 20, 21,
+ 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 34, 36, 38, 39, 40, 41, 42, 43, 44,
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
+ 76, 103, 104, 105, 106, 108, 116, 117, 118, 119,
+ 120, 154, 156, 219, 222, 252, 253, 254, 255, 256,
+ 261, 262, 263, 264, 265, 268, 270, 271, 272, 273,
+ 274, 275, 276, 277, 301, 302, 112, 33, 34, 37,
+ 76, 213, 76, 103, 270, 276, 113, 113, 113, 113,
+ 191, 301, 212, 213, 288, 192, 196, 4, 33, 34,
+ 35, 258, 259, 269, 196, 212, 76, 33, 37, 270,
+ 272, 193, 273, 76, 213, 272, 278, 279, 273, 76,
+ 266, 267, 9, 10, 11, 13, 14, 15, 16, 17,
+ 18, 19, 75, 76, 77, 78, 79, 80, 81, 84,
+ 85, 191, 197, 198, 199, 200, 212, 213, 214, 223,
+ 224, 225, 227, 228, 229, 230, 231, 232, 233, 234,
+ 235, 236, 237, 238, 239, 240, 241, 242, 243, 244,
+ 245, 246, 247, 248, 250, 252, 253, 272, 283, 284,
+ 285, 286, 289, 290, 291, 294, 295, 296, 300, 258,
+ 257, 260, 272, 259, 76, 191, 193, 211, 194, 234,
+ 247, 251, 272, 113, 278, 76, 280, 281, 214, 279,
+ 212, 192, 196, 212, 212, 284, 191, 191, 212, 212,
+ 250, 191, 250, 210, 191, 234, 234, 250, 214, 289,
+ 84, 85, 193, 195, 192, 192, 196, 74, 248, 191,
+ 93, 94, 95, 96, 97, 98, 99, 100, 101, 102,
+ 211, 249, 234, 201, 202, 203, 197, 198, 82, 83,
+ 86, 87, 204, 205, 88, 89, 206, 207, 208, 90,
+ 92, 91, 209, 196, 212, 214, 284, 76, 257, 260,
+ 193, 211, 194, 251, 248, 282, 194, 214, 193, 196,
+ 212, 267, 75, 283, 290, 297, 250, 212, 250, 210,
+ 250, 263, 293, 192, 214, 226, 250, 76, 229, 248,
+ 248, 234, 234, 234, 236, 236, 237, 237, 238, 238,
+ 238, 238, 239, 239, 240, 241, 242, 243, 244, 245,
+ 250, 248, 193, 194, 251, 282, 211, 194, 251, 281,
+ 191, 293, 298, 299, 192, 192, 76, 192, 194, 210,
+ 251, 211, 194, 282, 211, 194, 250, 212, 192, 284,
+ 292, 286, 211, 285, 287, 288, 248, 194, 282, 211,
+ 282, 192, 250, 287, 12, 282, 282, 212, 284
+};
+
+#define yyerrok (yyerrstatus = 0)
+#define yyclearin (yychar = YYEMPTY)
+#define YYEMPTY (-2)
+#define YYEOF 0
+
+#define YYACCEPT goto yyacceptlab
+#define YYABORT goto yyabortlab
+#define YYERROR goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror. This remains here temporarily
+ to ease the transition to the new meaning of YYERROR, for GCC.
+ Once GCC version 2 has supplanted version 1, this can go. However,
+ YYFAIL appears to be in use. Nevertheless, it is formally deprecated
+ in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+ discussed. */
+
+#define YYFAIL goto yyerrlab
+#if defined YYFAIL
+ /* This is here to suppress warnings from the GCC cpp's
+ -Wunused-macros. Normally we don't worry about that warning, but
+ some users do, and we want to make it easy for users to remove
+ YYFAIL uses, which will produce warnings from Bison 2.5. */
+#endif
+
+#define YYRECOVERING() (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value) \
+do \
+ if (yychar == YYEMPTY && yylen == 1) \
+ { \
+ yychar = (Token); \
+ yylval = (Value); \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
+ goto yybackup; \
+ } \
+ else \
+ { \
+ yyerror (&yylloc, state, YY_("syntax error: cannot back up")); \
+ YYERROR; \
+ } \
+while (YYID (0))
+
+
+#define YYTERROR 1
+#define YYERRCODE 256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+#ifndef YY_LOCATION_PRINT
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+# define YY_LOCATION_PRINT(File, Loc) \
+ fprintf (File, "%d.%d-%d.%d", \
+ (Loc).first_line, (Loc).first_column, \
+ (Loc).last_line, (Loc).last_column)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments. */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval, &yylloc, scanner)
+#endif
+
+/* Enable debugging if requested. */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+# define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args) \
+do { \
+ if (yydebug) \
+ YYFPRINTF Args; \
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value, Location, state); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp, struct _mesa_glsl_parse_state *state)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp, state)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ YYLTYPE const * const yylocationp;
+ struct _mesa_glsl_parse_state *state;
+#endif
+{
+ if (!yyvaluep)
+ return;
+ YYUSE (yylocationp);
+ YYUSE (state);
+# ifdef YYPRINT
+ if (yytype < YYNTOKENS)
+ YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+ YYUSE (yyoutput);
+# endif
+ switch (yytype)
+ {
+ default:
+ break;
+ }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT. |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp, struct _mesa_glsl_parse_state *state)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp, state)
+ FILE *yyoutput;
+ int yytype;
+ YYSTYPE const * const yyvaluep;
+ YYLTYPE const * const yylocationp;
+ struct _mesa_glsl_parse_state *state;
+#endif
+{
+ if (yytype < YYNTOKENS)
+ YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+ else
+ YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+ YY_LOCATION_PRINT (yyoutput, *yylocationp);
+ YYFPRINTF (yyoutput, ": ");
+ yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp, state);
+ YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
+#else
+static void
+yy_stack_print (yybottom, yytop)
+ yytype_int16 *yybottom;
+ yytype_int16 *yytop;
+#endif
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; yybottom <= yytop; yybottom++)
+ {
+ int yybot = *yybottom;
+ YYFPRINTF (stderr, " %d", yybot);
+ }
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule, struct _mesa_glsl_parse_state *state)
+#else
+static void
+yy_reduce_print (yyvsp, yylsp, yyrule, state)
+ YYSTYPE *yyvsp;
+ YYLTYPE *yylsp;
+ int yyrule;
+ struct _mesa_glsl_parse_state *state;
+#endif
+{
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ YYFPRINTF (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &(yyvsp[(yyi + 1) - (yynrhs)])
+ , &(yylsp[(yyi + 1) - (yynrhs)]) , state);
+ YYFPRINTF (stderr, "\n");
+ }
+}
+
+# define YY_REDUCE_PRINT(Rule) \
+do { \
+ if (yydebug) \
+ yy_reduce_print (yyvsp, yylsp, Rule, state); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace. It is left uninitialized so that
+ multiple parsers can coexist. */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks. */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+ if the built-in stack extension method is used).
+
+ Do not make this value too large; the results are undefined if
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+ evaluated with infinite-precision integer arithmetic. */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+# if defined __GLIBC__ && defined _STRING_H
+# define yystrlen strlen
+# else
+/* Return the length of YYSTR. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+ const char *yystr;
+#endif
+{
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
+ continue;
+ return yylen;
+}
+# endif
+# endif
+
+# ifndef yystpcpy
+# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+# define yystpcpy stpcpy
+# else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+ YYDEST. */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+ char *yydest;
+ const char *yysrc;
+#endif
+{
+ char *yyd = yydest;
+ const char *yys = yysrc;
+
+ while ((*yyd++ = *yys++) != '\0')
+ continue;
+
+ return yyd - 1;
+}
+# endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
+
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
+ {
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ constructed on the fly. */
+ YY_("syntax error, unexpected %s");
+ YY_("syntax error, unexpected %s, expecting %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ static char const yyexpecting[] = ", expecting %s";
+ static char const yyor[] = " or %s";
+ char yyformat[sizeof yyunexpected
+ + sizeof yyexpecting - 1
+ + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+ * (sizeof yyor - 1))];
+ char const *yyprefix = yyexpecting;
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ yyfmt = yystpcpy (yyformat, yyunexpected);
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ yyformat[sizeof yyunexpected - 1] = '\0';
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+ yyfmt = yystpcpy (yyfmt, yyprefix);
+ yyprefix = yyor;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ if (yyresult)
+ {
+ /* Avoid sprintf, as that infringes on the user's name space.
+ Don't have undefined behavior even if the translation
+ produced a string with the wrong number of "%s"s. */
+ char *yyp = yyresult;
+ int yyi = 0;
+ while ((*yyp = *yyf) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ }
+ return yysize;
+ }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol. |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp, struct _mesa_glsl_parse_state *state)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep, yylocationp, state)
+ const char *yymsg;
+ int yytype;
+ YYSTYPE *yyvaluep;
+ YYLTYPE *yylocationp;
+ struct _mesa_glsl_parse_state *state;
+#endif
+{
+ YYUSE (yyvaluep);
+ YYUSE (yylocationp);
+ YYUSE (state);
+
+ if (!yymsg)
+ yymsg = "Deleting";
+ YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+ switch (yytype)
+ {
+
+ default:
+ break;
+ }
+}
+
+/* Prevent warnings from -Wmissing-prototypes. */
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (struct _mesa_glsl_parse_state *state);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+
+
+/*-------------------------.
+| yyparse or yypush_parse. |
+`-------------------------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+ void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+ || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (struct _mesa_glsl_parse_state *state)
+#else
+int
+yyparse (state)
+ struct _mesa_glsl_parse_state *state;
+#endif
+#endif
+{
+/* The lookahead symbol. */
+int yychar;
+
+/* The semantic value of the lookahead symbol. */
+YYSTYPE yylval;
+
+/* Location data for the lookahead symbol. */
+YYLTYPE yylloc;
+
+ /* Number of syntax errors so far. */
+ int yynerrs;
+
+ int yystate;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+
+ /* The stacks and their tools:
+ `yyss': related to states.
+ `yyvs': related to semantic values.
+ `yyls': related to locations.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs;
+ YYSTYPE *yyvsp;
+
+ /* The location stack. */
+ YYLTYPE yylsa[YYINITDEPTH];
+ YYLTYPE *yyls;
+ YYLTYPE *yylsp;
+
+ /* The locations where the error started and ended. */
+ YYLTYPE yyerror_range[3];
+
+ YYSIZE_T yystacksize;
+
+ int yyn;
+ int yyresult;
+ /* Lookahead token as an internal (translated) token number. */
+ int yytoken;
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+ YYLTYPE yyloc;
+
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;
+
+ yytoken = 0;
+ yyss = yyssa;
+ yyvs = yyvsa;
+ yyls = yylsa;
+ yystacksize = YYINITDEPTH;
+
+ YYDPRINTF ((stderr, "Starting parse\n"));
+
+ yystate = 0;
+ yyerrstatus = 0;
+ yynerrs = 0;
+ yychar = YYEMPTY; /* Cause a token to be read. */
+
+ /* Initialize stack pointers.
+ Waste one element of value and location stack
+ so that they stay on the same level as the state stack.
+ The wasted elements are never initialized. */
+ yyssp = yyss;
+ yyvsp = yyvs;
+ yylsp = yyls;
+
+#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+ /* Initialize the default location before parsing starts. */
+ yylloc.first_line = yylloc.last_line = 1;
+ yylloc.first_column = yylloc.last_column = 1;
+#endif
+
+/* User initialization code. */
+
+/* Line 1251 of yacc.c */
+#line 41 "glsl_parser.ypp"
+{
+ yylloc.first_line = 1;
+ yylloc.first_column = 1;
+ yylloc.last_line = 1;
+ yylloc.last_column = 1;
+ yylloc.source = 0;
+}
+
+/* Line 1251 of yacc.c */
+#line 2691 "glsl_parser.cpp"
+ yylsp[0] = yylloc;
+
+ goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate. |
+`------------------------------------------------------------*/
+ yynewstate:
+ /* In all cases, when you get here, the value and location stacks
+ have just been pushed. So pushing a state here evens the stacks. */
+ yyssp++;
+
+ yysetstate:
+ *yyssp = yystate;
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ {
+ /* Get the current used size of the three stacks, in elements. */
+ YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+ {
+ /* Give user a chance to reallocate the stack. Use copies of
+ these so that the &'s don't force the real ones into
+ memory. */
+ YYSTYPE *yyvs1 = yyvs;
+ yytype_int16 *yyss1 = yyss;
+ YYLTYPE *yyls1 = yyls;
+
+ /* Each stack pointer address is followed by the size of the
+ data in use in that stack, in bytes. This used to be a
+ conditional around just the two extra args, but that might
+ be undefined if yyoverflow is a macro. */
+ yyoverflow (YY_("memory exhausted"),
+ &yyss1, yysize * sizeof (*yyssp),
+ &yyvs1, yysize * sizeof (*yyvsp),
+ &yyls1, yysize * sizeof (*yylsp),
+ &yystacksize);
+
+ yyls = yyls1;
+ yyss = yyss1;
+ yyvs = yyvs1;
+ }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+ goto yyexhaustedlab;
+# else
+ /* Extend the stack our own way. */
+ if (YYMAXDEPTH <= yystacksize)
+ goto yyexhaustedlab;
+ yystacksize *= 2;
+ if (YYMAXDEPTH < yystacksize)
+ yystacksize = YYMAXDEPTH;
+
+ {
+ yytype_int16 *yyss1 = yyss;
+ union yyalloc *yyptr =
+ (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+ if (! yyptr)
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss_alloc, yyss);
+ YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+ YYSTACK_RELOCATE (yyls_alloc, yyls);
+# undef YYSTACK_RELOCATE
+ if (yyss1 != yyssa)
+ YYSTACK_FREE (yyss1);
+ }
+# endif
+#endif /* no yyoverflow */
+
+ yyssp = yyss + yysize - 1;
+ yyvsp = yyvs + yysize - 1;
+ yylsp = yyls + yysize - 1;
+
+ YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+ (unsigned long int) yystacksize));
+
+ if (yyss + yystacksize - 1 <= yyssp)
+ YYABORT;
+ }
+
+ YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+ if (yystate == YYFINAL)
+ YYACCEPT;
+
+ goto yybackup;
+
+/*-----------.
+| yybackup. |
+`-----------*/
+yybackup:
+
+ /* Do appropriate processing given the current state. Read a
+ lookahead token if we need one and don't already have one. */
+
+ /* First try to decide what to do without reference to lookahead token. */
+ yyn = yypact[yystate];
+ if (yyn == YYPACT_NINF)
+ goto yydefault;
+
+ /* Not known => get a lookahead token if don't already have one. */
+
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
+ if (yychar == YYEMPTY)
+ {
+ YYDPRINTF ((stderr, "Reading a token: "));
+ yychar = YYLEX;
+ }
+
+ if (yychar <= YYEOF)
+ {
+ yychar = yytoken = YYEOF;
+ YYDPRINTF ((stderr, "Now at end of input.\n"));
+ }
+ else
+ {
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+ }
+
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
+ detect an error, take that action. */
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+ goto yydefault;
+ yyn = yytable[yyn];
+ if (yyn <= 0)
+ {
+ if (yyn == 0 || yyn == YYTABLE_NINF)
+ goto yyerrlab;
+ yyn = -yyn;
+ goto yyreduce;
+ }
+
+ /* Count tokens shifted since error; after three, turn off error
+ status. */
+ if (yyerrstatus)
+ yyerrstatus--;
+
+ /* Shift the lookahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token. */
+ yychar = YYEMPTY;
+
+ yystate = yyn;
+ *++yyvsp = yylval;
+ *++yylsp = yylloc;
+ goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state. |
+`-----------------------------------------------------------*/
+yydefault:
+ yyn = yydefact[yystate];
+ if (yyn == 0)
+ goto yyerrlab;
+ goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction. |
+`-----------------------------*/
+yyreduce:
+ /* yyn is the number of a rule to reduce with. */
+ yylen = yyr2[yyn];
+
+ /* If YYLEN is nonzero, implement the default value of the action:
+ `$$ = $1'.
+
+ Otherwise, the following line sets YYVAL to garbage.
+ This behavior is undocumented and Bison
+ users should not rely upon it. Assigning to YYVAL
+ unconditionally makes the parser a bit smaller, and it avoids a
+ GCC warning that YYVAL may be used uninitialized. */
+ yyval = yyvsp[1-yylen];
+
+ /* Default location. */
+ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
+ YY_REDUCE_PRINT (yyn);
+ switch (yyn)
+ {
+ case 2:
+
+/* Line 1464 of yacc.c */
+#line 214 "glsl_parser.ypp"
+ {
+ _mesa_glsl_initialize_types(state);
+ ;}
+ break;
+
+ case 5:
+
+/* Line 1464 of yacc.c */
+#line 223 "glsl_parser.ypp"
+ {
+ switch ((yyvsp[(2) - (3)].n)) {
+ case 100:
+ state->es_shader = true;
+ case 110:
+ case 120:
+ case 130:
+ /* FINISHME: Check against implementation support versions. */
+ state->language_version = (yyvsp[(2) - (3)].n);
+ break;
+ default:
+ _mesa_glsl_error(& (yylsp[(2) - (3)]), state, "Shading language version"
+ "%u is not supported\n", (yyvsp[(2) - (3)].n));
+ break;
+ }
+ ;}
+ break;
+
+ case 12:
+
+/* Line 1464 of yacc.c */
+#line 255 "glsl_parser.ypp"
+ {
+ if (!_mesa_glsl_process_extension((yyvsp[(2) - (5)].identifier), & (yylsp[(2) - (5)]), (yyvsp[(4) - (5)].identifier), & (yylsp[(4) - (5)]), state)) {
+ YYERROR;
+ }
+ ;}
+ break;
+
+ case 13:
+
+/* Line 1464 of yacc.c */
+#line 264 "glsl_parser.ypp"
+ {
+ /* FINISHME: The NULL test is only required because 'precision'
+ * FINISHME: statements are not yet supported.
+ */
+ if ((yyvsp[(1) - (1)].node) != NULL)
+ state->translation_unit.push_tail(& (yyvsp[(1) - (1)].node)->link);
+ ;}
+ break;
+
+ case 14:
+
+/* Line 1464 of yacc.c */
+#line 272 "glsl_parser.ypp"
+ {
+ /* FINISHME: The NULL test is only required because 'precision'
+ * FINISHME: statements are not yet supported.
+ */
+ if ((yyvsp[(2) - (2)].node) != NULL)
+ state->translation_unit.push_tail(& (yyvsp[(2) - (2)].node)->link);
+ ;}
+ break;
+
+ case 16:
+
+/* Line 1464 of yacc.c */
+#line 287 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_identifier, NULL, NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->primary_expression.identifier = (yyvsp[(1) - (1)].identifier);
+ ;}
+ break;
+
+ case 17:
+
+/* Line 1464 of yacc.c */
+#line 294 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_int_constant, NULL, NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->primary_expression.int_constant = (yyvsp[(1) - (1)].n);
+ ;}
+ break;
+
+ case 18:
+
+/* Line 1464 of yacc.c */
+#line 301 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_uint_constant, NULL, NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->primary_expression.uint_constant = (yyvsp[(1) - (1)].n);
+ ;}
+ break;
+
+ case 19:
+
+/* Line 1464 of yacc.c */
+#line 308 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_float_constant, NULL, NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->primary_expression.float_constant = (yyvsp[(1) - (1)].real);
+ ;}
+ break;
+
+ case 20:
+
+/* Line 1464 of yacc.c */
+#line 315 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_bool_constant, NULL, NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->primary_expression.bool_constant = (yyvsp[(1) - (1)].n);
+ ;}
+ break;
+
+ case 21:
+
+/* Line 1464 of yacc.c */
+#line 322 "glsl_parser.ypp"
+ {
+ (yyval.expression) = (yyvsp[(2) - (3)].expression);
+ ;}
+ break;
+
+ case 23:
+
+/* Line 1464 of yacc.c */
+#line 330 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_array_index, (yyvsp[(1) - (4)].expression), (yyvsp[(3) - (4)].expression), NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 24:
+
+/* Line 1464 of yacc.c */
+#line 336 "glsl_parser.ypp"
+ {
+ (yyval.expression) = (yyvsp[(1) - (1)].expression);
+ ;}
+ break;
+
+ case 25:
+
+/* Line 1464 of yacc.c */
+#line 340 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_field_selection, (yyvsp[(1) - (3)].expression), NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->primary_expression.identifier = (yyvsp[(3) - (3)].identifier);
+ ;}
+ break;
+
+ case 26:
+
+/* Line 1464 of yacc.c */
+#line 347 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_post_inc, (yyvsp[(1) - (2)].expression), NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 27:
+
+/* Line 1464 of yacc.c */
+#line 353 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_post_dec, (yyvsp[(1) - (2)].expression), NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 31:
+
+/* Line 1464 of yacc.c */
+#line 371 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_field_selection, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression), NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 36:
+
+/* Line 1464 of yacc.c */
+#line 390 "glsl_parser.ypp"
+ {
+ (yyval.expression) = (yyvsp[(1) - (2)].expression);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->expressions.push_tail(& (yyvsp[(2) - (2)].expression)->link);
+ ;}
+ break;
+
+ case 37:
+
+/* Line 1464 of yacc.c */
+#line 396 "glsl_parser.ypp"
+ {
+ (yyval.expression) = (yyvsp[(1) - (3)].expression);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->expressions.push_tail(& (yyvsp[(3) - (3)].expression)->link);
+ ;}
+ break;
+
+ case 39:
+
+/* Line 1464 of yacc.c */
+#line 412 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_function_expression((yyvsp[(1) - (1)].type_specifier));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 40:
+
+/* Line 1464 of yacc.c */
+#line 418 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_expression *callee = new(ctx) ast_expression((yyvsp[(1) - (1)].identifier));
+ (yyval.expression) = new(ctx) ast_function_expression(callee);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 41:
+
+/* Line 1464 of yacc.c */
+#line 425 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_expression *callee = new(ctx) ast_expression((yyvsp[(1) - (1)].identifier));
+ (yyval.expression) = new(ctx) ast_function_expression(callee);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 43:
+
+/* Line 1464 of yacc.c */
+#line 437 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_pre_inc, (yyvsp[(2) - (2)].expression), NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 44:
+
+/* Line 1464 of yacc.c */
+#line 443 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_pre_dec, (yyvsp[(2) - (2)].expression), NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 45:
+
+/* Line 1464 of yacc.c */
+#line 449 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression((yyvsp[(1) - (2)].n), (yyvsp[(2) - (2)].expression), NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 46:
+
+/* Line 1464 of yacc.c */
+#line 458 "glsl_parser.ypp"
+ { (yyval.n) = ast_plus; ;}
+ break;
+
+ case 47:
+
+/* Line 1464 of yacc.c */
+#line 459 "glsl_parser.ypp"
+ { (yyval.n) = ast_neg; ;}
+ break;
+
+ case 48:
+
+/* Line 1464 of yacc.c */
+#line 460 "glsl_parser.ypp"
+ { (yyval.n) = ast_logic_not; ;}
+ break;
+
+ case 49:
+
+/* Line 1464 of yacc.c */
+#line 461 "glsl_parser.ypp"
+ { (yyval.n) = ast_bit_not; ;}
+ break;
+
+ case 51:
+
+/* Line 1464 of yacc.c */
+#line 467 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_mul, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 52:
+
+/* Line 1464 of yacc.c */
+#line 473 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_div, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 53:
+
+/* Line 1464 of yacc.c */
+#line 479 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_mod, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 55:
+
+/* Line 1464 of yacc.c */
+#line 489 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_add, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 56:
+
+/* Line 1464 of yacc.c */
+#line 495 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_sub, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 58:
+
+/* Line 1464 of yacc.c */
+#line 505 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_lshift, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 59:
+
+/* Line 1464 of yacc.c */
+#line 511 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_rshift, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 61:
+
+/* Line 1464 of yacc.c */
+#line 521 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_less, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 62:
+
+/* Line 1464 of yacc.c */
+#line 527 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_greater, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 63:
+
+/* Line 1464 of yacc.c */
+#line 533 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_lequal, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 64:
+
+/* Line 1464 of yacc.c */
+#line 539 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_gequal, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 66:
+
+/* Line 1464 of yacc.c */
+#line 549 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_equal, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 67:
+
+/* Line 1464 of yacc.c */
+#line 555 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_nequal, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 69:
+
+/* Line 1464 of yacc.c */
+#line 565 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_bit_or, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 71:
+
+/* Line 1464 of yacc.c */
+#line 575 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_bit_xor, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 73:
+
+/* Line 1464 of yacc.c */
+#line 585 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_bit_or, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 75:
+
+/* Line 1464 of yacc.c */
+#line 595 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_logic_and, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 77:
+
+/* Line 1464 of yacc.c */
+#line 605 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_logic_xor, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 79:
+
+/* Line 1464 of yacc.c */
+#line 615 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression_bin(ast_logic_or, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 81:
+
+/* Line 1464 of yacc.c */
+#line 625 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression(ast_conditional, (yyvsp[(1) - (5)].expression), (yyvsp[(3) - (5)].expression), (yyvsp[(5) - (5)].expression));
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 83:
+
+/* Line 1464 of yacc.c */
+#line 635 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.expression) = new(ctx) ast_expression((yyvsp[(2) - (3)].n), (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression), NULL);
+ (yyval.expression)->set_location(yylloc);
+ ;}
+ break;
+
+ case 84:
+
+/* Line 1464 of yacc.c */
+#line 643 "glsl_parser.ypp"
+ { (yyval.n) = ast_assign; ;}
+ break;
+
+ case 85:
+
+/* Line 1464 of yacc.c */
+#line 644 "glsl_parser.ypp"
+ { (yyval.n) = ast_mul_assign; ;}
+ break;
+
+ case 86:
+
+/* Line 1464 of yacc.c */
+#line 645 "glsl_parser.ypp"
+ { (yyval.n) = ast_div_assign; ;}
+ break;
+
+ case 87:
+
+/* Line 1464 of yacc.c */
+#line 646 "glsl_parser.ypp"
+ { (yyval.n) = ast_mod_assign; ;}
+ break;
+
+ case 88:
+
+/* Line 1464 of yacc.c */
+#line 647 "glsl_parser.ypp"
+ { (yyval.n) = ast_add_assign; ;}
+ break;
+
+ case 89:
+
+/* Line 1464 of yacc.c */
+#line 648 "glsl_parser.ypp"
+ { (yyval.n) = ast_sub_assign; ;}
+ break;
+
+ case 90:
+
+/* Line 1464 of yacc.c */
+#line 649 "glsl_parser.ypp"
+ { (yyval.n) = ast_ls_assign; ;}
+ break;
+
+ case 91:
+
+/* Line 1464 of yacc.c */
+#line 650 "glsl_parser.ypp"
+ { (yyval.n) = ast_rs_assign; ;}
+ break;
+
+ case 92:
+
+/* Line 1464 of yacc.c */
+#line 651 "glsl_parser.ypp"
+ { (yyval.n) = ast_and_assign; ;}
+ break;
+
+ case 93:
+
+/* Line 1464 of yacc.c */
+#line 652 "glsl_parser.ypp"
+ { (yyval.n) = ast_xor_assign; ;}
+ break;
+
+ case 94:
+
+/* Line 1464 of yacc.c */
+#line 653 "glsl_parser.ypp"
+ { (yyval.n) = ast_or_assign; ;}
+ break;
+
+ case 95:
+
+/* Line 1464 of yacc.c */
+#line 658 "glsl_parser.ypp"
+ {
+ (yyval.expression) = (yyvsp[(1) - (1)].expression);
+ ;}
+ break;
+
+ case 96:
+
+/* Line 1464 of yacc.c */
+#line 662 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ if ((yyvsp[(1) - (3)].expression)->oper != ast_sequence) {
+ (yyval.expression) = new(ctx) ast_expression(ast_sequence, NULL, NULL, NULL);
+ (yyval.expression)->set_location(yylloc);
+ (yyval.expression)->expressions.push_tail(& (yyvsp[(1) - (3)].expression)->link);
+ } else {
+ (yyval.expression) = (yyvsp[(1) - (3)].expression);
+ }
+
+ (yyval.expression)->expressions.push_tail(& (yyvsp[(3) - (3)].expression)->link);
+ ;}
+ break;
+
+ case 98:
+
+/* Line 1464 of yacc.c */
+#line 682 "glsl_parser.ypp"
+ {
+ (yyval.node) = (yyvsp[(1) - (2)].function);
+ ;}
+ break;
+
+ case 99:
+
+/* Line 1464 of yacc.c */
+#line 686 "glsl_parser.ypp"
+ {
+ (yyval.node) = (yyvsp[(1) - (2)].declarator_list);
+ ;}
+ break;
+
+ case 100:
+
+/* Line 1464 of yacc.c */
+#line 690 "glsl_parser.ypp"
+ {
+ if (((yyvsp[(3) - (4)].type_specifier)->type_specifier != ast_float)
+ && ((yyvsp[(3) - (4)].type_specifier)->type_specifier != ast_int)) {
+ _mesa_glsl_error(& (yylsp[(3) - (4)]), state, "global precision qualifier can "
+ "only be applied to `int' or `float'\n");
+ YYERROR;
+ }
+
+ (yyval.node) = NULL; /* FINISHME */
+ ;}
+ break;
+
+ case 104:
+
+/* Line 1464 of yacc.c */
+#line 713 "glsl_parser.ypp"
+ {
+ (yyval.function) = (yyvsp[(1) - (2)].function);
+ (yyval.function)->parameters.push_tail(& (yyvsp[(2) - (2)].parameter_declarator)->link);
+ ;}
+ break;
+
+ case 105:
+
+/* Line 1464 of yacc.c */
+#line 718 "glsl_parser.ypp"
+ {
+ (yyval.function) = (yyvsp[(1) - (3)].function);
+ (yyval.function)->parameters.push_tail(& (yyvsp[(3) - (3)].parameter_declarator)->link);
+ ;}
+ break;
+
+ case 106:
+
+/* Line 1464 of yacc.c */
+#line 726 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.function) = new(ctx) ast_function();
+ (yyval.function)->set_location(yylloc);
+ (yyval.function)->return_type = (yyvsp[(1) - (3)].fully_specified_type);
+ (yyval.function)->identifier = (yyvsp[(2) - (3)].identifier);
+ ;}
+ break;
+
+ case 107:
+
+/* Line 1464 of yacc.c */
+#line 737 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.parameter_declarator) = new(ctx) ast_parameter_declarator();
+ (yyval.parameter_declarator)->set_location(yylloc);
+ (yyval.parameter_declarator)->type = new(ctx) ast_fully_specified_type();
+ (yyval.parameter_declarator)->type->set_location(yylloc);
+ (yyval.parameter_declarator)->type->specifier = (yyvsp[(1) - (2)].type_specifier);
+ (yyval.parameter_declarator)->identifier = (yyvsp[(2) - (2)].identifier);
+ ;}
+ break;
+
+ case 108:
+
+/* Line 1464 of yacc.c */
+#line 747 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.parameter_declarator) = new(ctx) ast_parameter_declarator();
+ (yyval.parameter_declarator)->set_location(yylloc);
+ (yyval.parameter_declarator)->type = new(ctx) ast_fully_specified_type();
+ (yyval.parameter_declarator)->type->set_location(yylloc);
+ (yyval.parameter_declarator)->type->specifier = (yyvsp[(1) - (5)].type_specifier);
+ (yyval.parameter_declarator)->identifier = (yyvsp[(2) - (5)].identifier);
+ (yyval.parameter_declarator)->is_array = true;
+ (yyval.parameter_declarator)->array_size = (yyvsp[(4) - (5)].expression);
+ ;}
+ break;
+
+ case 109:
+
+/* Line 1464 of yacc.c */
+#line 762 "glsl_parser.ypp"
+ {
+ (yyvsp[(1) - (3)].type_qualifier).i |= (yyvsp[(2) - (3)].type_qualifier).i;
+
+ (yyval.parameter_declarator) = (yyvsp[(3) - (3)].parameter_declarator);
+ (yyval.parameter_declarator)->type->qualifier = (yyvsp[(1) - (3)].type_qualifier).q;
+ ;}
+ break;
+
+ case 110:
+
+/* Line 1464 of yacc.c */
+#line 769 "glsl_parser.ypp"
+ {
+ (yyval.parameter_declarator) = (yyvsp[(2) - (2)].parameter_declarator);
+ (yyval.parameter_declarator)->type->qualifier = (yyvsp[(1) - (2)].type_qualifier).q;
+ ;}
+ break;
+
+ case 111:
+
+/* Line 1464 of yacc.c */
+#line 774 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyvsp[(1) - (3)].type_qualifier).i |= (yyvsp[(2) - (3)].type_qualifier).i;
+
+ (yyval.parameter_declarator) = new(ctx) ast_parameter_declarator();
+ (yyval.parameter_declarator)->set_location(yylloc);
+ (yyval.parameter_declarator)->type = new(ctx) ast_fully_specified_type();
+ (yyval.parameter_declarator)->type->qualifier = (yyvsp[(1) - (3)].type_qualifier).q;
+ (yyval.parameter_declarator)->type->specifier = (yyvsp[(3) - (3)].type_specifier);
+ ;}
+ break;
+
+ case 112:
+
+/* Line 1464 of yacc.c */
+#line 785 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.parameter_declarator) = new(ctx) ast_parameter_declarator();
+ (yyval.parameter_declarator)->set_location(yylloc);
+ (yyval.parameter_declarator)->type = new(ctx) ast_fully_specified_type();
+ (yyval.parameter_declarator)->type->qualifier = (yyvsp[(1) - (2)].type_qualifier).q;
+ (yyval.parameter_declarator)->type->specifier = (yyvsp[(2) - (2)].type_specifier);
+ ;}
+ break;
+
+ case 113:
+
+/* Line 1464 of yacc.c */
+#line 796 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; ;}
+ break;
+
+ case 114:
+
+/* Line 1464 of yacc.c */
+#line 797 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.in = 1; ;}
+ break;
+
+ case 115:
+
+/* Line 1464 of yacc.c */
+#line 798 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.out = 1; ;}
+ break;
+
+ case 116:
+
+/* Line 1464 of yacc.c */
+#line 799 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.in = 1; (yyval.type_qualifier).q.out = 1; ;}
+ break;
+
+ case 119:
+
+/* Line 1464 of yacc.c */
+#line 809 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(3) - (3)].identifier), false, NULL, NULL);
+ decl->set_location(yylloc);
+
+ (yyval.declarator_list) = (yyvsp[(1) - (3)].declarator_list);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 120:
+
+/* Line 1464 of yacc.c */
+#line 818 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(3) - (5)].identifier), true, NULL, NULL);
+ decl->set_location(yylloc);
+
+ (yyval.declarator_list) = (yyvsp[(1) - (5)].declarator_list);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 121:
+
+/* Line 1464 of yacc.c */
+#line 827 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(3) - (6)].identifier), true, (yyvsp[(5) - (6)].expression), NULL);
+ decl->set_location(yylloc);
+
+ (yyval.declarator_list) = (yyvsp[(1) - (6)].declarator_list);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 122:
+
+/* Line 1464 of yacc.c */
+#line 836 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(3) - (7)].identifier), true, NULL, (yyvsp[(7) - (7)].expression));
+ decl->set_location(yylloc);
+
+ (yyval.declarator_list) = (yyvsp[(1) - (7)].declarator_list);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 123:
+
+/* Line 1464 of yacc.c */
+#line 845 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(3) - (8)].identifier), true, (yyvsp[(5) - (8)].expression), (yyvsp[(8) - (8)].expression));
+ decl->set_location(yylloc);
+
+ (yyval.declarator_list) = (yyvsp[(1) - (8)].declarator_list);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 124:
+
+/* Line 1464 of yacc.c */
+#line 854 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(3) - (5)].identifier), false, NULL, (yyvsp[(5) - (5)].expression));
+ decl->set_location(yylloc);
+
+ (yyval.declarator_list) = (yyvsp[(1) - (5)].declarator_list);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 125:
+
+/* Line 1464 of yacc.c */
+#line 867 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ if ((yyvsp[(1) - (1)].fully_specified_type)->specifier->type_specifier != ast_struct) {
+ _mesa_glsl_error(& (yylsp[(1) - (1)]), state, "empty declaration list\n");
+ YYERROR;
+ } else {
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (1)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ }
+ ;}
+ break;
+
+ case 126:
+
+/* Line 1464 of yacc.c */
+#line 878 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (2)].identifier), false, NULL, NULL);
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (2)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 127:
+
+/* Line 1464 of yacc.c */
+#line 887 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (4)].identifier), true, NULL, NULL);
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (4)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 128:
+
+/* Line 1464 of yacc.c */
+#line 896 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (5)].identifier), true, (yyvsp[(4) - (5)].expression), NULL);
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (5)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 129:
+
+/* Line 1464 of yacc.c */
+#line 905 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (6)].identifier), true, NULL, (yyvsp[(6) - (6)].expression));
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (6)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 130:
+
+/* Line 1464 of yacc.c */
+#line 914 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (7)].identifier), true, (yyvsp[(4) - (7)].expression), (yyvsp[(7) - (7)].expression));
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (7)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 131:
+
+/* Line 1464 of yacc.c */
+#line 923 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (4)].identifier), false, NULL, (yyvsp[(4) - (4)].expression));
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list((yyvsp[(1) - (4)].fully_specified_type));
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 132:
+
+/* Line 1464 of yacc.c */
+#line 932 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (2)].identifier), false, NULL, NULL);
+
+ (yyval.declarator_list) = new(ctx) ast_declarator_list(NULL);
+ (yyval.declarator_list)->set_location(yylloc);
+ (yyval.declarator_list)->invariant = true;
+
+ (yyval.declarator_list)->declarations.push_tail(&decl->link);
+ ;}
+ break;
+
+ case 133:
+
+/* Line 1464 of yacc.c */
+#line 946 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.fully_specified_type) = new(ctx) ast_fully_specified_type();
+ (yyval.fully_specified_type)->set_location(yylloc);
+ (yyval.fully_specified_type)->specifier = (yyvsp[(1) - (1)].type_specifier);
+ ;}
+ break;
+
+ case 134:
+
+/* Line 1464 of yacc.c */
+#line 953 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.fully_specified_type) = new(ctx) ast_fully_specified_type();
+ (yyval.fully_specified_type)->set_location(yylloc);
+ (yyval.fully_specified_type)->qualifier = (yyvsp[(1) - (2)].type_qualifier).q;
+ (yyval.fully_specified_type)->specifier = (yyvsp[(2) - (2)].type_specifier);
+ ;}
+ break;
+
+ case 135:
+
+/* Line 1464 of yacc.c */
+#line 963 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; ;}
+ break;
+
+ case 137:
+
+/* Line 1464 of yacc.c */
+#line 969 "glsl_parser.ypp"
+ {
+ (yyval.type_qualifier) = (yyvsp[(3) - (4)].type_qualifier);
+ ;}
+ break;
+
+ case 139:
+
+/* Line 1464 of yacc.c */
+#line 977 "glsl_parser.ypp"
+ {
+ (yyval.type_qualifier).i = (yyvsp[(1) - (3)].type_qualifier).i | (yyvsp[(3) - (3)].type_qualifier).i;
+ ;}
+ break;
+
+ case 140:
+
+/* Line 1464 of yacc.c */
+#line 984 "glsl_parser.ypp"
+ {
+ (yyval.type_qualifier).i = 0;
+
+ if (state->ARB_fragment_coord_conventions_enable) {
+ bool got_one = false;
+
+ if (strcmp((yyvsp[(1) - (1)].identifier), "origin_upper_left") == 0) {
+ got_one = true;
+ (yyval.type_qualifier).q.origin_upper_left = 1;
+ } else if (strcmp((yyvsp[(1) - (1)].identifier), "pixel_center_integer") == 0) {
+ got_one = true;
+ (yyval.type_qualifier).q.pixel_center_integer = 1;
+ }
+
+ if (state->ARB_fragment_coord_conventions_warn && got_one) {
+ _mesa_glsl_warning(& (yylsp[(1) - (1)]), state,
+ "GL_ARB_fragment_coord_conventions layout "
+ "identifier `%s' used\n", (yyvsp[(1) - (1)].identifier));
+ }
+ }
+
+ /* If the identifier didn't match any known layout identifiers,
+ * emit an error.
+ */
+ if ((yyval.type_qualifier).i == 0) {
+ _mesa_glsl_error(& (yylsp[(1) - (1)]), state, "unrecognized layout identifier "
+ "`%s'\n", (yyvsp[(1) - (1)].identifier));
+ YYERROR;
+ }
+ ;}
+ break;
+
+ case 141:
+
+/* Line 1464 of yacc.c */
+#line 1017 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.smooth = 1; ;}
+ break;
+
+ case 142:
+
+/* Line 1464 of yacc.c */
+#line 1018 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.flat = 1; ;}
+ break;
+
+ case 143:
+
+/* Line 1464 of yacc.c */
+#line 1019 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.noperspective = 1; ;}
+ break;
+
+ case 144:
+
+/* Line 1464 of yacc.c */
+#line 1023 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.constant = 1; ;}
+ break;
+
+ case 146:
+
+/* Line 1464 of yacc.c */
+#line 1029 "glsl_parser.ypp"
+ {
+ (yyval.type_qualifier).i = (yyvsp[(1) - (2)].type_qualifier).i | (yyvsp[(2) - (2)].type_qualifier).i;
+ ;}
+ break;
+
+ case 147:
+
+/* Line 1464 of yacc.c */
+#line 1033 "glsl_parser.ypp"
+ {
+ (yyval.type_qualifier) = (yyvsp[(2) - (2)].type_qualifier);
+ (yyval.type_qualifier).q.invariant = 1;
+ ;}
+ break;
+
+ case 148:
+
+/* Line 1464 of yacc.c */
+#line 1040 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.constant = 1; ;}
+ break;
+
+ case 149:
+
+/* Line 1464 of yacc.c */
+#line 1041 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.attribute = 1; ;}
+ break;
+
+ case 150:
+
+/* Line 1464 of yacc.c */
+#line 1042 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = (yyvsp[(1) - (2)].type_qualifier).i; (yyval.type_qualifier).q.varying = 1; ;}
+ break;
+
+ case 151:
+
+/* Line 1464 of yacc.c */
+#line 1043 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.centroid = 1; (yyval.type_qualifier).q.varying = 1; ;}
+ break;
+
+ case 152:
+
+/* Line 1464 of yacc.c */
+#line 1044 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.in = 1; ;}
+ break;
+
+ case 153:
+
+/* Line 1464 of yacc.c */
+#line 1045 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.out = 1; ;}
+ break;
+
+ case 154:
+
+/* Line 1464 of yacc.c */
+#line 1046 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.centroid = 1; (yyval.type_qualifier).q.in = 1; ;}
+ break;
+
+ case 155:
+
+/* Line 1464 of yacc.c */
+#line 1047 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.centroid = 1; (yyval.type_qualifier).q.out = 1; ;}
+ break;
+
+ case 156:
+
+/* Line 1464 of yacc.c */
+#line 1048 "glsl_parser.ypp"
+ { (yyval.type_qualifier).i = 0; (yyval.type_qualifier).q.uniform = 1; ;}
+ break;
+
+ case 158:
+
+/* Line 1464 of yacc.c */
+#line 1054 "glsl_parser.ypp"
+ {
+ (yyval.type_specifier) = (yyvsp[(2) - (2)].type_specifier);
+ (yyval.type_specifier)->precision = (yyvsp[(1) - (2)].n);
+ ;}
+ break;
+
+ case 160:
+
+/* Line 1464 of yacc.c */
+#line 1063 "glsl_parser.ypp"
+ {
+ (yyval.type_specifier) = (yyvsp[(1) - (3)].type_specifier);
+ (yyval.type_specifier)->is_array = true;
+ (yyval.type_specifier)->array_size = NULL;
+ ;}
+ break;
+
+ case 161:
+
+/* Line 1464 of yacc.c */
+#line 1069 "glsl_parser.ypp"
+ {
+ (yyval.type_specifier) = (yyvsp[(1) - (4)].type_specifier);
+ (yyval.type_specifier)->is_array = true;
+ (yyval.type_specifier)->array_size = (yyvsp[(3) - (4)].expression);
+ ;}
+ break;
+
+ case 162:
+
+/* Line 1464 of yacc.c */
+#line 1078 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.type_specifier) = new(ctx) ast_type_specifier((yyvsp[(1) - (1)].n));
+ (yyval.type_specifier)->set_location(yylloc);
+ ;}
+ break;
+
+ case 163:
+
+/* Line 1464 of yacc.c */
+#line 1084 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.type_specifier) = new(ctx) ast_type_specifier((yyvsp[(1) - (1)].struct_specifier));
+ (yyval.type_specifier)->set_location(yylloc);
+ ;}
+ break;
+
+ case 164:
+
+/* Line 1464 of yacc.c */
+#line 1090 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.type_specifier) = new(ctx) ast_type_specifier((yyvsp[(1) - (1)].identifier));
+ (yyval.type_specifier)->set_location(yylloc);
+ ;}
+ break;
+
+ case 165:
+
+/* Line 1464 of yacc.c */
+#line 1098 "glsl_parser.ypp"
+ { (yyval.n) = ast_void; ;}
+ break;
+
+ case 166:
+
+/* Line 1464 of yacc.c */
+#line 1099 "glsl_parser.ypp"
+ { (yyval.n) = ast_float; ;}
+ break;
+
+ case 167:
+
+/* Line 1464 of yacc.c */
+#line 1100 "glsl_parser.ypp"
+ { (yyval.n) = ast_int; ;}
+ break;
+
+ case 168:
+
+/* Line 1464 of yacc.c */
+#line 1101 "glsl_parser.ypp"
+ { (yyval.n) = ast_uint; ;}
+ break;
+
+ case 169:
+
+/* Line 1464 of yacc.c */
+#line 1102 "glsl_parser.ypp"
+ { (yyval.n) = ast_bool; ;}
+ break;
+
+ case 170:
+
+/* Line 1464 of yacc.c */
+#line 1103 "glsl_parser.ypp"
+ { (yyval.n) = ast_vec2; ;}
+ break;
+
+ case 171:
+
+/* Line 1464 of yacc.c */
+#line 1104 "glsl_parser.ypp"
+ { (yyval.n) = ast_vec3; ;}
+ break;
+
+ case 172:
+
+/* Line 1464 of yacc.c */
+#line 1105 "glsl_parser.ypp"
+ { (yyval.n) = ast_vec4; ;}
+ break;
+
+ case 173:
+
+/* Line 1464 of yacc.c */
+#line 1106 "glsl_parser.ypp"
+ { (yyval.n) = ast_bvec2; ;}
+ break;
+
+ case 174:
+
+/* Line 1464 of yacc.c */
+#line 1107 "glsl_parser.ypp"
+ { (yyval.n) = ast_bvec3; ;}
+ break;
+
+ case 175:
+
+/* Line 1464 of yacc.c */
+#line 1108 "glsl_parser.ypp"
+ { (yyval.n) = ast_bvec4; ;}
+ break;
+
+ case 176:
+
+/* Line 1464 of yacc.c */
+#line 1109 "glsl_parser.ypp"
+ { (yyval.n) = ast_ivec2; ;}
+ break;
+
+ case 177:
+
+/* Line 1464 of yacc.c */
+#line 1110 "glsl_parser.ypp"
+ { (yyval.n) = ast_ivec3; ;}
+ break;
+
+ case 178:
+
+/* Line 1464 of yacc.c */
+#line 1111 "glsl_parser.ypp"
+ { (yyval.n) = ast_ivec4; ;}
+ break;
+
+ case 179:
+
+/* Line 1464 of yacc.c */
+#line 1112 "glsl_parser.ypp"
+ { (yyval.n) = ast_uvec2; ;}
+ break;
+
+ case 180:
+
+/* Line 1464 of yacc.c */
+#line 1113 "glsl_parser.ypp"
+ { (yyval.n) = ast_uvec3; ;}
+ break;
+
+ case 181:
+
+/* Line 1464 of yacc.c */
+#line 1114 "glsl_parser.ypp"
+ { (yyval.n) = ast_uvec4; ;}
+ break;
+
+ case 182:
+
+/* Line 1464 of yacc.c */
+#line 1115 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat2; ;}
+ break;
+
+ case 183:
+
+/* Line 1464 of yacc.c */
+#line 1116 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat2x3; ;}
+ break;
+
+ case 184:
+
+/* Line 1464 of yacc.c */
+#line 1117 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat2x4; ;}
+ break;
+
+ case 185:
+
+/* Line 1464 of yacc.c */
+#line 1118 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat3x2; ;}
+ break;
+
+ case 186:
+
+/* Line 1464 of yacc.c */
+#line 1119 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat3; ;}
+ break;
+
+ case 187:
+
+/* Line 1464 of yacc.c */
+#line 1120 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat3x4; ;}
+ break;
+
+ case 188:
+
+/* Line 1464 of yacc.c */
+#line 1121 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat4x2; ;}
+ break;
+
+ case 189:
+
+/* Line 1464 of yacc.c */
+#line 1122 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat4x3; ;}
+ break;
+
+ case 190:
+
+/* Line 1464 of yacc.c */
+#line 1123 "glsl_parser.ypp"
+ { (yyval.n) = ast_mat4; ;}
+ break;
+
+ case 191:
+
+/* Line 1464 of yacc.c */
+#line 1124 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler1d; ;}
+ break;
+
+ case 192:
+
+/* Line 1464 of yacc.c */
+#line 1125 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler2d; ;}
+ break;
+
+ case 193:
+
+/* Line 1464 of yacc.c */
+#line 1126 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler2drect; ;}
+ break;
+
+ case 194:
+
+/* Line 1464 of yacc.c */
+#line 1127 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler3d; ;}
+ break;
+
+ case 195:
+
+/* Line 1464 of yacc.c */
+#line 1128 "glsl_parser.ypp"
+ { (yyval.n) = ast_samplercube; ;}
+ break;
+
+ case 196:
+
+/* Line 1464 of yacc.c */
+#line 1129 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler1dshadow; ;}
+ break;
+
+ case 197:
+
+/* Line 1464 of yacc.c */
+#line 1130 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler2dshadow; ;}
+ break;
+
+ case 198:
+
+/* Line 1464 of yacc.c */
+#line 1131 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler2drectshadow; ;}
+ break;
+
+ case 199:
+
+/* Line 1464 of yacc.c */
+#line 1132 "glsl_parser.ypp"
+ { (yyval.n) = ast_samplercubeshadow; ;}
+ break;
+
+ case 200:
+
+/* Line 1464 of yacc.c */
+#line 1133 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler1darray; ;}
+ break;
+
+ case 201:
+
+/* Line 1464 of yacc.c */
+#line 1134 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler2darray; ;}
+ break;
+
+ case 202:
+
+/* Line 1464 of yacc.c */
+#line 1135 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler1darrayshadow; ;}
+ break;
+
+ case 203:
+
+/* Line 1464 of yacc.c */
+#line 1136 "glsl_parser.ypp"
+ { (yyval.n) = ast_sampler2darrayshadow; ;}
+ break;
+
+ case 204:
+
+/* Line 1464 of yacc.c */
+#line 1137 "glsl_parser.ypp"
+ { (yyval.n) = ast_isampler1d; ;}
+ break;
+
+ case 205:
+
+/* Line 1464 of yacc.c */
+#line 1138 "glsl_parser.ypp"
+ { (yyval.n) = ast_isampler2d; ;}
+ break;
+
+ case 206:
+
+/* Line 1464 of yacc.c */
+#line 1139 "glsl_parser.ypp"
+ { (yyval.n) = ast_isampler3d; ;}
+ break;
+
+ case 207:
+
+/* Line 1464 of yacc.c */
+#line 1140 "glsl_parser.ypp"
+ { (yyval.n) = ast_isamplercube; ;}
+ break;
+
+ case 208:
+
+/* Line 1464 of yacc.c */
+#line 1141 "glsl_parser.ypp"
+ { (yyval.n) = ast_isampler1darray; ;}
+ break;
+
+ case 209:
+
+/* Line 1464 of yacc.c */
+#line 1142 "glsl_parser.ypp"
+ { (yyval.n) = ast_isampler2darray; ;}
+ break;
+
+ case 210:
+
+/* Line 1464 of yacc.c */
+#line 1143 "glsl_parser.ypp"
+ { (yyval.n) = ast_usampler1d; ;}
+ break;
+
+ case 211:
+
+/* Line 1464 of yacc.c */
+#line 1144 "glsl_parser.ypp"
+ { (yyval.n) = ast_usampler2d; ;}
+ break;
+
+ case 212:
+
+/* Line 1464 of yacc.c */
+#line 1145 "glsl_parser.ypp"
+ { (yyval.n) = ast_usampler3d; ;}
+ break;
+
+ case 213:
+
+/* Line 1464 of yacc.c */
+#line 1146 "glsl_parser.ypp"
+ { (yyval.n) = ast_usamplercube; ;}
+ break;
+
+ case 214:
+
+/* Line 1464 of yacc.c */
+#line 1147 "glsl_parser.ypp"
+ { (yyval.n) = ast_usampler1darray; ;}
+ break;
+
+ case 215:
+
+/* Line 1464 of yacc.c */
+#line 1148 "glsl_parser.ypp"
+ { (yyval.n) = ast_usampler2darray; ;}
+ break;
+
+ case 216:
+
+/* Line 1464 of yacc.c */
+#line 1152 "glsl_parser.ypp"
+ {
+ if (!state->es_shader && state->language_version < 130)
+ _mesa_glsl_error(& (yylsp[(1) - (1)]), state,
+ "precision qualifier forbidden "
+ "in GLSL %d.%d (1.30 or later "
+ "required)\n",
+ state->language_version / 100,
+ state->language_version % 100);
+
+ (yyval.n) = ast_precision_high;
+ ;}
+ break;
+
+ case 217:
+
+/* Line 1464 of yacc.c */
+#line 1163 "glsl_parser.ypp"
+ {
+ if (!state->es_shader && state->language_version < 130)
+ _mesa_glsl_error(& (yylsp[(1) - (1)]), state,
+ "precision qualifier forbidden "
+ "in GLSL %d.%d (1.30 or later "
+ "required)\n",
+ state->language_version / 100,
+ state->language_version % 100);
+
+ (yyval.n) = ast_precision_medium;
+ ;}
+ break;
+
+ case 218:
+
+/* Line 1464 of yacc.c */
+#line 1174 "glsl_parser.ypp"
+ {
+ if (!state->es_shader && state->language_version < 130)
+ _mesa_glsl_error(& (yylsp[(1) - (1)]), state,
+ "precision qualifier forbidden "
+ "in GLSL %d.%d (1.30 or later "
+ "required)\n",
+ state->language_version / 100,
+ state->language_version % 100);
+
+ (yyval.n) = ast_precision_low;
+ ;}
+ break;
+
+ case 219:
+
+/* Line 1464 of yacc.c */
+#line 1189 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.struct_specifier) = new(ctx) ast_struct_specifier((yyvsp[(2) - (5)].identifier), (yyvsp[(4) - (5)].node));
+ (yyval.struct_specifier)->set_location(yylloc);
+ ;}
+ break;
+
+ case 220:
+
+/* Line 1464 of yacc.c */
+#line 1195 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.struct_specifier) = new(ctx) ast_struct_specifier(NULL, (yyvsp[(3) - (4)].node));
+ (yyval.struct_specifier)->set_location(yylloc);
+ ;}
+ break;
+
+ case 221:
+
+/* Line 1464 of yacc.c */
+#line 1204 "glsl_parser.ypp"
+ {
+ (yyval.node) = (ast_node *) (yyvsp[(1) - (1)].declarator_list);
+ (yyvsp[(1) - (1)].declarator_list)->link.self_link();
+ ;}
+ break;
+
+ case 222:
+
+/* Line 1464 of yacc.c */
+#line 1209 "glsl_parser.ypp"
+ {
+ (yyval.node) = (ast_node *) (yyvsp[(1) - (2)].node);
+ (yyval.node)->link.insert_before(& (yyvsp[(2) - (2)].declarator_list)->link);
+ ;}
+ break;
+
+ case 223:
+
+/* Line 1464 of yacc.c */
+#line 1217 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_fully_specified_type *type = new(ctx) ast_fully_specified_type();
+ type->set_location(yylloc);
+
+ type->specifier = (yyvsp[(1) - (3)].type_specifier);
+ (yyval.declarator_list) = new(ctx) ast_declarator_list(type);
+ (yyval.declarator_list)->set_location(yylloc);
+
+ (yyval.declarator_list)->declarations.push_degenerate_list_at_head(& (yyvsp[(2) - (3)].declaration)->link);
+ ;}
+ break;
+
+ case 224:
+
+/* Line 1464 of yacc.c */
+#line 1232 "glsl_parser.ypp"
+ {
+ (yyval.declaration) = (yyvsp[(1) - (1)].declaration);
+ (yyvsp[(1) - (1)].declaration)->link.self_link();
+ ;}
+ break;
+
+ case 225:
+
+/* Line 1464 of yacc.c */
+#line 1237 "glsl_parser.ypp"
+ {
+ (yyval.declaration) = (yyvsp[(1) - (3)].declaration);
+ (yyval.declaration)->link.insert_before(& (yyvsp[(3) - (3)].declaration)->link);
+ ;}
+ break;
+
+ case 226:
+
+/* Line 1464 of yacc.c */
+#line 1245 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.declaration) = new(ctx) ast_declaration((yyvsp[(1) - (1)].identifier), false, NULL, NULL);
+ (yyval.declaration)->set_location(yylloc);
+ ;}
+ break;
+
+ case 227:
+
+/* Line 1464 of yacc.c */
+#line 1251 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.declaration) = new(ctx) ast_declaration((yyvsp[(1) - (4)].identifier), true, (yyvsp[(3) - (4)].expression), NULL);
+ (yyval.declaration)->set_location(yylloc);
+ ;}
+ break;
+
+ case 230:
+
+/* Line 1464 of yacc.c */
+#line 1269 "glsl_parser.ypp"
+ { (yyval.node) = (ast_node *) (yyvsp[(1) - (1)].compound_statement); ;}
+ break;
+
+ case 235:
+
+/* Line 1464 of yacc.c */
+#line 1277 "glsl_parser.ypp"
+ { (yyval.node) = NULL; ;}
+ break;
+
+ case 236:
+
+/* Line 1464 of yacc.c */
+#line 1278 "glsl_parser.ypp"
+ { (yyval.node) = NULL; ;}
+ break;
+
+ case 239:
+
+/* Line 1464 of yacc.c */
+#line 1285 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.compound_statement) = new(ctx) ast_compound_statement(true, NULL);
+ (yyval.compound_statement)->set_location(yylloc);
+ ;}
+ break;
+
+ case 240:
+
+/* Line 1464 of yacc.c */
+#line 1291 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.compound_statement) = new(ctx) ast_compound_statement(true, (yyvsp[(2) - (3)].node));
+ (yyval.compound_statement)->set_location(yylloc);
+ ;}
+ break;
+
+ case 241:
+
+/* Line 1464 of yacc.c */
+#line 1299 "glsl_parser.ypp"
+ { (yyval.node) = (ast_node *) (yyvsp[(1) - (1)].compound_statement); ;}
+ break;
+
+ case 243:
+
+/* Line 1464 of yacc.c */
+#line 1305 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.compound_statement) = new(ctx) ast_compound_statement(false, NULL);
+ (yyval.compound_statement)->set_location(yylloc);
+ ;}
+ break;
+
+ case 244:
+
+/* Line 1464 of yacc.c */
+#line 1311 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.compound_statement) = new(ctx) ast_compound_statement(false, (yyvsp[(2) - (3)].node));
+ (yyval.compound_statement)->set_location(yylloc);
+ ;}
+ break;
+
+ case 245:
+
+/* Line 1464 of yacc.c */
+#line 1320 "glsl_parser.ypp"
+ {
+ if ((yyvsp[(1) - (1)].node) == NULL) {
+ _mesa_glsl_error(& (yylsp[(1) - (1)]), state, "<nil> statement\n");
+ assert((yyvsp[(1) - (1)].node) != NULL);
+ }
+
+ (yyval.node) = (yyvsp[(1) - (1)].node);
+ (yyval.node)->link.self_link();
+ ;}
+ break;
+
+ case 246:
+
+/* Line 1464 of yacc.c */
+#line 1330 "glsl_parser.ypp"
+ {
+ if ((yyvsp[(2) - (2)].node) == NULL) {
+ _mesa_glsl_error(& (yylsp[(2) - (2)]), state, "<nil> statement\n");
+ assert((yyvsp[(2) - (2)].node) != NULL);
+ }
+ (yyval.node) = (yyvsp[(1) - (2)].node);
+ (yyval.node)->link.insert_before(& (yyvsp[(2) - (2)].node)->link);
+ ;}
+ break;
+
+ case 247:
+
+/* Line 1464 of yacc.c */
+#line 1342 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_expression_statement(NULL);
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 248:
+
+/* Line 1464 of yacc.c */
+#line 1348 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_expression_statement((yyvsp[(1) - (2)].expression));
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 249:
+
+/* Line 1464 of yacc.c */
+#line 1357 "glsl_parser.ypp"
+ {
+ (yyval.node) = new(state) ast_selection_statement((yyvsp[(3) - (5)].expression), (yyvsp[(5) - (5)].selection_rest_statement).then_statement,
+ (yyvsp[(5) - (5)].selection_rest_statement).else_statement);
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 250:
+
+/* Line 1464 of yacc.c */
+#line 1366 "glsl_parser.ypp"
+ {
+ (yyval.selection_rest_statement).then_statement = (yyvsp[(1) - (3)].node);
+ (yyval.selection_rest_statement).else_statement = (yyvsp[(3) - (3)].node);
+ ;}
+ break;
+
+ case 251:
+
+/* Line 1464 of yacc.c */
+#line 1371 "glsl_parser.ypp"
+ {
+ (yyval.selection_rest_statement).then_statement = (yyvsp[(1) - (1)].node);
+ (yyval.selection_rest_statement).else_statement = NULL;
+ ;}
+ break;
+
+ case 252:
+
+/* Line 1464 of yacc.c */
+#line 1379 "glsl_parser.ypp"
+ {
+ (yyval.node) = (ast_node *) (yyvsp[(1) - (1)].expression);
+ ;}
+ break;
+
+ case 253:
+
+/* Line 1464 of yacc.c */
+#line 1383 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration((yyvsp[(2) - (4)].identifier), false, NULL, (yyvsp[(4) - (4)].expression));
+ ast_declarator_list *declarator = new(ctx) ast_declarator_list((yyvsp[(1) - (4)].fully_specified_type));
+ decl->set_location(yylloc);
+ declarator->set_location(yylloc);
+
+ declarator->declarations.push_tail(&decl->link);
+ (yyval.node) = declarator;
+ ;}
+ break;
+
+ case 257:
+
+/* Line 1464 of yacc.c */
+#line 1406 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_iteration_statement(ast_iteration_statement::ast_while,
+ NULL, (yyvsp[(3) - (5)].node), NULL, (yyvsp[(5) - (5)].node));
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 258:
+
+/* Line 1464 of yacc.c */
+#line 1413 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_iteration_statement(ast_iteration_statement::ast_do_while,
+ NULL, (yyvsp[(5) - (7)].expression), NULL, (yyvsp[(2) - (7)].node));
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 259:
+
+/* Line 1464 of yacc.c */
+#line 1420 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_iteration_statement(ast_iteration_statement::ast_for,
+ (yyvsp[(3) - (6)].node), (yyvsp[(4) - (6)].for_rest_statement).cond, (yyvsp[(4) - (6)].for_rest_statement).rest, (yyvsp[(6) - (6)].node));
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 263:
+
+/* Line 1464 of yacc.c */
+#line 1436 "glsl_parser.ypp"
+ {
+ (yyval.node) = NULL;
+ ;}
+ break;
+
+ case 264:
+
+/* Line 1464 of yacc.c */
+#line 1443 "glsl_parser.ypp"
+ {
+ (yyval.for_rest_statement).cond = (yyvsp[(1) - (2)].node);
+ (yyval.for_rest_statement).rest = NULL;
+ ;}
+ break;
+
+ case 265:
+
+/* Line 1464 of yacc.c */
+#line 1448 "glsl_parser.ypp"
+ {
+ (yyval.for_rest_statement).cond = (yyvsp[(1) - (3)].node);
+ (yyval.for_rest_statement).rest = (yyvsp[(3) - (3)].expression);
+ ;}
+ break;
+
+ case 266:
+
+/* Line 1464 of yacc.c */
+#line 1457 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_jump_statement(ast_jump_statement::ast_continue, NULL);
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 267:
+
+/* Line 1464 of yacc.c */
+#line 1463 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_jump_statement(ast_jump_statement::ast_break, NULL);
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 268:
+
+/* Line 1464 of yacc.c */
+#line 1469 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_jump_statement(ast_jump_statement::ast_return, NULL);
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 269:
+
+/* Line 1464 of yacc.c */
+#line 1475 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_jump_statement(ast_jump_statement::ast_return, (yyvsp[(2) - (3)].expression));
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 270:
+
+/* Line 1464 of yacc.c */
+#line 1481 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.node) = new(ctx) ast_jump_statement(ast_jump_statement::ast_discard, NULL);
+ (yyval.node)->set_location(yylloc);
+ ;}
+ break;
+
+ case 271:
+
+/* Line 1464 of yacc.c */
+#line 1489 "glsl_parser.ypp"
+ { (yyval.node) = (yyvsp[(1) - (1)].function_definition); ;}
+ break;
+
+ case 272:
+
+/* Line 1464 of yacc.c */
+#line 1490 "glsl_parser.ypp"
+ { (yyval.node) = (yyvsp[(1) - (1)].node); ;}
+ break;
+
+ case 273:
+
+/* Line 1464 of yacc.c */
+#line 1491 "glsl_parser.ypp"
+ { (yyval.node) = NULL; ;}
+ break;
+
+ case 274:
+
+/* Line 1464 of yacc.c */
+#line 1496 "glsl_parser.ypp"
+ {
+ void *ctx = state;
+ (yyval.function_definition) = new(ctx) ast_function_definition();
+ (yyval.function_definition)->set_location(yylloc);
+ (yyval.function_definition)->prototype = (yyvsp[(1) - (2)].function);
+ (yyval.function_definition)->body = (yyvsp[(2) - (2)].compound_statement);
+ ;}
+ break;
+
+
+
+/* Line 1464 of yacc.c */
+#line 5016 "glsl_parser.cpp"
+ default: break;
+ }
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+
+ *++yyvsp = yyval;
+ *++yylsp = yyloc;
+
+ /* Now `shift' the result of the reduction. Determine what state
+ that goes to, based on the state we popped back to and the rule
+ number reduced by. */
+
+ yyn = yyr1[yyn];
+
+ yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+ if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+ yystate = yytable[yystate];
+ else
+ yystate = yydefgoto[yyn - YYNTOKENS];
+
+ goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+ /* If not already recovering from an error, report this error. */
+ if (!yyerrstatus)
+ {
+ ++yynerrs;
+#if ! YYERROR_VERBOSE
+ yyerror (&yylloc, state, YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (&yylloc, state, yymsg);
+ }
+ else
+ {
+ yyerror (&yylloc, state, YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
+ }
+
+ yyerror_range[1] = yylloc;
+
+ if (yyerrstatus == 3)
+ {
+ /* If just tried and failed to reuse lookahead token after an
+ error, discard it. */
+
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval, &yylloc, state);
+ yychar = YYEMPTY;
+ }
+ }
+
+ /* Else will try to reuse lookahead token after shifting the error
+ token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
+ goto yyerrorlab;
+
+ yyerror_range[1] = yylsp[1-yylen];
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYERROR. */
+ YYPOPSTACK (yylen);
+ yylen = 0;
+ YY_STACK_PRINT (yyss, yyssp);
+ yystate = *yyssp;
+ goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
+ yyerrstatus = 3; /* Each real token shifted decrements this. */
+
+ for (;;)
+ {
+ yyn = yypact[yystate];
+ if (yyn != YYPACT_NINF)
+ {
+ yyn += YYTERROR;
+ if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+ {
+ yyn = yytable[yyn];
+ if (0 < yyn)
+ break;
+ }
+ }
+
+ /* Pop the current state because it cannot handle the error token. */
+ if (yyssp == yyss)
+ YYABORT;
+
+ yyerror_range[1] = *yylsp;
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp, yylsp, state);
+ YYPOPSTACK (1);
+ yystate = *yyssp;
+ YY_STACK_PRINT (yyss, yyssp);
+ }
+
+ *++yyvsp = yylval;
+
+ yyerror_range[2] = yylloc;
+ /* Using YYLLOC is tempting, but would change the location of
+ the lookahead. YYLOC is available though. */
+ YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
+ *++yylsp = yyloc;
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+ yystate = yyn;
+ goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here. |
+`-------------------------------------*/
+yyacceptlab:
+ yyresult = 0;
+ goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here. |
+`-----------------------------------*/
+yyabortlab:
+ yyresult = 1;
+ goto yyreturn;
+
+#if !defined(yyoverflow) || YYERROR_VERBOSE
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (&yylloc, state, YY_("memory exhausted"));
+ yyresult = 2;
+ /* Fall through. */
+#endif
+
+yyreturn:
+ if (yychar != YYEMPTY)
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval, &yylloc, state);
+ /* Do not reclaim the symbols of the rule which action triggered
+ this YYABORT or YYACCEPT. */
+ YYPOPSTACK (yylen);
+ YY_STACK_PRINT (yyss, yyssp);
+ while (yyssp != yyss)
+ {
+ yydestruct ("Cleanup: popping",
+ yystos[*yyssp], yyvsp, yylsp, state);
+ YYPOPSTACK (1);
+ }
+#ifndef yyoverflow
+ if (yyss != yyssa)
+ YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+
diff --git a/mesalib/src/glsl/glsl_parser.h b/mesalib/src/glsl/glsl_parser.h
new file mode 100644
index 000000000..4a780375b
--- /dev/null
+++ b/mesalib/src/glsl/glsl_parser.h
@@ -0,0 +1,298 @@
+/* A Bison parser, made by GNU Bison 2.4.3. */
+
+/* Skeleton interface for Bison's Yacc-like parsers in C
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2009, 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* As a special exception, you may create a larger work that contains
+ part or all of the Bison parser skeleton and distribute that work
+ under terms of your choice, so long as that work isn't itself a
+ parser generator using the skeleton or a modified version thereof
+ as a parser skeleton. Alternatively, if you modify or redistribute
+ the parser skeleton itself, you may (at your option) remove this
+ special exception, which will cause the skeleton and the resulting
+ Bison output files to be licensed under the GNU General Public
+ License without this special exception.
+
+ This special exception was added by the Free Software Foundation in
+ version 2.2 of Bison. */
+
+
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ ATTRIBUTE = 258,
+ CONST_TOK = 259,
+ BOOL_TOK = 260,
+ FLOAT_TOK = 261,
+ INT_TOK = 262,
+ UINT_TOK = 263,
+ BREAK = 264,
+ CONTINUE = 265,
+ DO = 266,
+ ELSE = 267,
+ FOR = 268,
+ IF = 269,
+ DISCARD = 270,
+ RETURN = 271,
+ SWITCH = 272,
+ CASE = 273,
+ DEFAULT = 274,
+ BVEC2 = 275,
+ BVEC3 = 276,
+ BVEC4 = 277,
+ IVEC2 = 278,
+ IVEC3 = 279,
+ IVEC4 = 280,
+ UVEC2 = 281,
+ UVEC3 = 282,
+ UVEC4 = 283,
+ VEC2 = 284,
+ VEC3 = 285,
+ VEC4 = 286,
+ CENTROID = 287,
+ IN_TOK = 288,
+ OUT_TOK = 289,
+ INOUT_TOK = 290,
+ UNIFORM = 291,
+ VARYING = 292,
+ NOPERSPECTIVE = 293,
+ FLAT = 294,
+ SMOOTH = 295,
+ MAT2X2 = 296,
+ MAT2X3 = 297,
+ MAT2X4 = 298,
+ MAT3X2 = 299,
+ MAT3X3 = 300,
+ MAT3X4 = 301,
+ MAT4X2 = 302,
+ MAT4X3 = 303,
+ MAT4X4 = 304,
+ SAMPLER1D = 305,
+ SAMPLER2D = 306,
+ SAMPLER3D = 307,
+ SAMPLERCUBE = 308,
+ SAMPLER1DSHADOW = 309,
+ SAMPLER2DSHADOW = 310,
+ SAMPLERCUBESHADOW = 311,
+ SAMPLER1DARRAY = 312,
+ SAMPLER2DARRAY = 313,
+ SAMPLER1DARRAYSHADOW = 314,
+ SAMPLER2DARRAYSHADOW = 315,
+ ISAMPLER1D = 316,
+ ISAMPLER2D = 317,
+ ISAMPLER3D = 318,
+ ISAMPLERCUBE = 319,
+ ISAMPLER1DARRAY = 320,
+ ISAMPLER2DARRAY = 321,
+ USAMPLER1D = 322,
+ USAMPLER2D = 323,
+ USAMPLER3D = 324,
+ USAMPLERCUBE = 325,
+ USAMPLER1DARRAY = 326,
+ USAMPLER2DARRAY = 327,
+ STRUCT = 328,
+ VOID_TOK = 329,
+ WHILE = 330,
+ IDENTIFIER = 331,
+ FLOATCONSTANT = 332,
+ INTCONSTANT = 333,
+ UINTCONSTANT = 334,
+ BOOLCONSTANT = 335,
+ FIELD_SELECTION = 336,
+ LEFT_OP = 337,
+ RIGHT_OP = 338,
+ INC_OP = 339,
+ DEC_OP = 340,
+ LE_OP = 341,
+ GE_OP = 342,
+ EQ_OP = 343,
+ NE_OP = 344,
+ AND_OP = 345,
+ OR_OP = 346,
+ XOR_OP = 347,
+ MUL_ASSIGN = 348,
+ DIV_ASSIGN = 349,
+ ADD_ASSIGN = 350,
+ MOD_ASSIGN = 351,
+ LEFT_ASSIGN = 352,
+ RIGHT_ASSIGN = 353,
+ AND_ASSIGN = 354,
+ XOR_ASSIGN = 355,
+ OR_ASSIGN = 356,
+ SUB_ASSIGN = 357,
+ INVARIANT = 358,
+ LOWP = 359,
+ MEDIUMP = 360,
+ HIGHP = 361,
+ SUPERP = 362,
+ PRECISION = 363,
+ VERSION = 364,
+ EXTENSION = 365,
+ LINE = 366,
+ COLON = 367,
+ EOL = 368,
+ INTERFACE = 369,
+ OUTPUT = 370,
+ PRAGMA_DEBUG_ON = 371,
+ PRAGMA_DEBUG_OFF = 372,
+ PRAGMA_OPTIMIZE_ON = 373,
+ PRAGMA_OPTIMIZE_OFF = 374,
+ LAYOUT_TOK = 375,
+ ASM = 376,
+ CLASS = 377,
+ UNION = 378,
+ ENUM = 379,
+ TYPEDEF = 380,
+ TEMPLATE = 381,
+ THIS = 382,
+ PACKED_TOK = 383,
+ GOTO = 384,
+ INLINE_TOK = 385,
+ NOINLINE = 386,
+ VOLATILE = 387,
+ PUBLIC_TOK = 388,
+ STATIC = 389,
+ EXTERN = 390,
+ EXTERNAL = 391,
+ LONG_TOK = 392,
+ SHORT_TOK = 393,
+ DOUBLE_TOK = 394,
+ HALF = 395,
+ FIXED_TOK = 396,
+ UNSIGNED = 397,
+ INPUT_TOK = 398,
+ OUPTUT = 399,
+ HVEC2 = 400,
+ HVEC3 = 401,
+ HVEC4 = 402,
+ DVEC2 = 403,
+ DVEC3 = 404,
+ DVEC4 = 405,
+ FVEC2 = 406,
+ FVEC3 = 407,
+ FVEC4 = 408,
+ SAMPLER2DRECT = 409,
+ SAMPLER3DRECT = 410,
+ SAMPLER2DRECTSHADOW = 411,
+ SIZEOF = 412,
+ CAST = 413,
+ NAMESPACE = 414,
+ USING = 415,
+ ERROR_TOK = 416,
+ COMMON = 417,
+ PARTITION = 418,
+ ACTIVE = 419,
+ SAMPLERBUFFER = 420,
+ FILTER = 421,
+ IMAGE1D = 422,
+ IMAGE2D = 423,
+ IMAGE3D = 424,
+ IMAGECUBE = 425,
+ IMAGE1DARRAY = 426,
+ IMAGE2DARRAY = 427,
+ IIMAGE1D = 428,
+ IIMAGE2D = 429,
+ IIMAGE3D = 430,
+ IIMAGECUBE = 431,
+ IIMAGE1DARRAY = 432,
+ IIMAGE2DARRAY = 433,
+ UIMAGE1D = 434,
+ UIMAGE2D = 435,
+ UIMAGE3D = 436,
+ UIMAGECUBE = 437,
+ UIMAGE1DARRAY = 438,
+ UIMAGE2DARRAY = 439,
+ IMAGE1DSHADOW = 440,
+ IMAGE2DSHADOW = 441,
+ IMAGEBUFFER = 442,
+ IIMAGEBUFFER = 443,
+ UIMAGEBUFFER = 444,
+ ROW_MAJOR = 445
+ };
+#endif
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+{
+
+/* Line 1685 of yacc.c */
+#line 52 "glsl_parser.ypp"
+
+ int n;
+ float real;
+ char *identifier;
+
+ union {
+ struct ast_type_qualifier q;
+ unsigned i;
+ } type_qualifier;
+
+ ast_node *node;
+ ast_type_specifier *type_specifier;
+ ast_fully_specified_type *fully_specified_type;
+ ast_function *function;
+ ast_parameter_declarator *parameter_declarator;
+ ast_function_definition *function_definition;
+ ast_compound_statement *compound_statement;
+ ast_expression *expression;
+ ast_declarator_list *declarator_list;
+ ast_struct_specifier *struct_specifier;
+ ast_declaration *declaration;
+
+ struct {
+ ast_node *cond;
+ ast_expression *rest;
+ } for_rest_statement;
+
+ struct {
+ ast_node *then_statement;
+ ast_node *else_statement;
+ } selection_rest_statement;
+
+
+
+/* Line 1685 of yacc.c */
+#line 276 "glsl_parser.h"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+
diff --git a/mesalib/src/glsl/glsl_parser.ypp b/mesalib/src/glsl/glsl_parser.ypp
new file mode 100644
index 000000000..0df1e480c
--- /dev/null
+++ b/mesalib/src/glsl/glsl_parser.ypp
@@ -0,0 +1,1503 @@
+%{
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_types.h"
+
+#define YYLEX_PARAM state->scanner
+
+%}
+
+%pure-parser
+%error-verbose
+
+%locations
+%initial-action {
+ @$.first_line = 1;
+ @$.first_column = 1;
+ @$.last_line = 1;
+ @$.last_column = 1;
+ @$.source = 0;
+}
+
+%lex-param {void *scanner}
+%parse-param {struct _mesa_glsl_parse_state *state}
+
+%union {
+ int n;
+ float real;
+ char *identifier;
+
+ union {
+ struct ast_type_qualifier q;
+ unsigned i;
+ } type_qualifier;
+
+ ast_node *node;
+ ast_type_specifier *type_specifier;
+ ast_fully_specified_type *fully_specified_type;
+ ast_function *function;
+ ast_parameter_declarator *parameter_declarator;
+ ast_function_definition *function_definition;
+ ast_compound_statement *compound_statement;
+ ast_expression *expression;
+ ast_declarator_list *declarator_list;
+ ast_struct_specifier *struct_specifier;
+ ast_declaration *declaration;
+
+ struct {
+ ast_node *cond;
+ ast_expression *rest;
+ } for_rest_statement;
+
+ struct {
+ ast_node *then_statement;
+ ast_node *else_statement;
+ } selection_rest_statement;
+}
+
+%token ATTRIBUTE CONST_TOK BOOL_TOK FLOAT_TOK INT_TOK UINT_TOK
+%token BREAK CONTINUE DO ELSE FOR IF DISCARD RETURN SWITCH CASE DEFAULT
+%token BVEC2 BVEC3 BVEC4 IVEC2 IVEC3 IVEC4 UVEC2 UVEC3 UVEC4 VEC2 VEC3 VEC4
+%token CENTROID IN_TOK OUT_TOK INOUT_TOK UNIFORM VARYING
+%token NOPERSPECTIVE FLAT SMOOTH
+%token MAT2X2 MAT2X3 MAT2X4
+%token MAT3X2 MAT3X3 MAT3X4
+%token MAT4X2 MAT4X3 MAT4X4
+%token SAMPLER1D SAMPLER2D SAMPLER3D SAMPLERCUBE SAMPLER1DSHADOW SAMPLER2DSHADOW
+%token SAMPLERCUBESHADOW SAMPLER1DARRAY SAMPLER2DARRAY SAMPLER1DARRAYSHADOW
+%token SAMPLER2DARRAYSHADOW ISAMPLER1D ISAMPLER2D ISAMPLER3D ISAMPLERCUBE
+%token ISAMPLER1DARRAY ISAMPLER2DARRAY USAMPLER1D USAMPLER2D USAMPLER3D
+%token USAMPLERCUBE USAMPLER1DARRAY USAMPLER2DARRAY
+%token STRUCT VOID_TOK WHILE
+%token <identifier> IDENTIFIER
+%token <real> FLOATCONSTANT
+%token <n> INTCONSTANT UINTCONSTANT BOOLCONSTANT
+%token <identifier> FIELD_SELECTION
+%token LEFT_OP RIGHT_OP
+%token INC_OP DEC_OP LE_OP GE_OP EQ_OP NE_OP
+%token AND_OP OR_OP XOR_OP MUL_ASSIGN DIV_ASSIGN ADD_ASSIGN
+%token MOD_ASSIGN LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN
+%token SUB_ASSIGN
+%token INVARIANT
+%token LOWP MEDIUMP HIGHP SUPERP PRECISION
+
+%token VERSION EXTENSION LINE COLON EOL INTERFACE OUTPUT
+%token PRAGMA_DEBUG_ON PRAGMA_DEBUG_OFF
+%token PRAGMA_OPTIMIZE_ON PRAGMA_OPTIMIZE_OFF
+%token LAYOUT_TOK
+
+ /* Reserved words that are not actually used in the grammar.
+ */
+%token ASM CLASS UNION ENUM TYPEDEF TEMPLATE THIS PACKED_TOK GOTO
+%token INLINE_TOK NOINLINE VOLATILE PUBLIC_TOK STATIC EXTERN EXTERNAL
+%token LONG_TOK SHORT_TOK DOUBLE_TOK HALF FIXED_TOK UNSIGNED INPUT_TOK OUPTUT
+%token HVEC2 HVEC3 HVEC4 DVEC2 DVEC3 DVEC4 FVEC2 FVEC3 FVEC4
+%token SAMPLER2DRECT SAMPLER3DRECT SAMPLER2DRECTSHADOW
+%token SIZEOF CAST NAMESPACE USING
+
+%token ERROR_TOK
+
+%token COMMON PARTITION ACTIVE SAMPLERBUFFER FILTER
+%token IMAGE1D IMAGE2D IMAGE3D IMAGECUBE IMAGE1DARRAY IMAGE2DARRAY
+%token IIMAGE1D IIMAGE2D IIMAGE3D IIMAGECUBE IIMAGE1DARRAY IIMAGE2DARRAY
+%token UIMAGE1D UIMAGE2D UIMAGE3D UIMAGECUBE UIMAGE1DARRAY UIMAGE2DARRAY
+%token IMAGE1DSHADOW IMAGE2DSHADOW IMAGEBUFFER IIMAGEBUFFER UIMAGEBUFFER
+%token ROW_MAJOR
+
+%type <identifier> variable_identifier
+%type <node> statement
+%type <node> statement_list
+%type <node> simple_statement
+%type <n> precision_qualifier
+%type <type_qualifier> type_qualifier
+%type <type_qualifier> storage_qualifier
+%type <type_qualifier> interpolation_qualifier
+%type <type_qualifier> opt_layout_qualifier layout_qualifier
+%type <type_qualifier> layout_qualifier_id_list layout_qualifier_id
+%type <type_specifier> type_specifier
+%type <type_specifier> type_specifier_no_prec
+%type <type_specifier> type_specifier_nonarray
+%type <n> basic_type_specifier_nonarray
+%type <fully_specified_type> fully_specified_type
+%type <function> function_prototype
+%type <function> function_header
+%type <function> function_header_with_parameters
+%type <function> function_declarator
+%type <parameter_declarator> parameter_declarator
+%type <parameter_declarator> parameter_declaration
+%type <type_qualifier> parameter_qualifier
+%type <type_qualifier> parameter_type_qualifier
+%type <type_specifier> parameter_type_specifier
+%type <function_definition> function_definition
+%type <compound_statement> compound_statement_no_new_scope
+%type <compound_statement> compound_statement
+%type <node> statement_no_new_scope
+%type <node> expression_statement
+%type <expression> expression
+%type <expression> primary_expression
+%type <expression> assignment_expression
+%type <expression> conditional_expression
+%type <expression> logical_or_expression
+%type <expression> logical_xor_expression
+%type <expression> logical_and_expression
+%type <expression> inclusive_or_expression
+%type <expression> exclusive_or_expression
+%type <expression> and_expression
+%type <expression> equality_expression
+%type <expression> relational_expression
+%type <expression> shift_expression
+%type <expression> additive_expression
+%type <expression> multiplicative_expression
+%type <expression> unary_expression
+%type <expression> constant_expression
+%type <expression> integer_expression
+%type <expression> postfix_expression
+%type <expression> function_call_header_with_parameters
+%type <expression> function_call_header_no_parameters
+%type <expression> function_call_header
+%type <expression> function_call_generic
+%type <expression> function_call_or_method
+%type <expression> function_call
+%type <n> assignment_operator
+%type <n> unary_operator
+%type <expression> function_identifier
+%type <node> external_declaration
+%type <declarator_list> init_declarator_list
+%type <declarator_list> single_declaration
+%type <expression> initializer
+%type <node> declaration
+%type <node> declaration_statement
+%type <node> jump_statement
+%type <struct_specifier> struct_specifier
+%type <node> struct_declaration_list
+%type <declarator_list> struct_declaration
+%type <declaration> struct_declarator
+%type <declaration> struct_declarator_list
+%type <node> selection_statement
+%type <selection_rest_statement> selection_rest_statement
+%type <node> iteration_statement
+%type <node> condition
+%type <node> conditionopt
+%type <node> for_init_statement
+%type <for_rest_statement> for_rest_statement
+%%
+
+translation_unit:
+ version_statement extension_statement_list
+ {
+ _mesa_glsl_initialize_types(state);
+ }
+ external_declaration_list
+ ;
+
+version_statement:
+ /* blank - no #version specified: defaults are already set */
+ | VERSION INTCONSTANT EOL
+ {
+ switch ($2) {
+ case 100:
+ state->es_shader = true;
+ case 110:
+ case 120:
+ case 130:
+ /* FINISHME: Check against implementation support versions. */
+ state->language_version = $2;
+ break;
+ default:
+ _mesa_glsl_error(& @2, state, "Shading language version"
+ "%u is not supported\n", $2);
+ break;
+ }
+ }
+ ;
+
+pragma_statement:
+ PRAGMA_DEBUG_ON EOL
+ | PRAGMA_DEBUG_OFF EOL
+ | PRAGMA_OPTIMIZE_ON EOL
+ | PRAGMA_OPTIMIZE_OFF EOL
+ ;
+
+extension_statement_list:
+
+ | extension_statement_list extension_statement
+ ;
+
+extension_statement:
+ EXTENSION IDENTIFIER COLON IDENTIFIER EOL
+ {
+ if (!_mesa_glsl_process_extension($2, & @2, $4, & @4, state)) {
+ YYERROR;
+ }
+ }
+ ;
+
+external_declaration_list:
+ external_declaration
+ {
+ /* FINISHME: The NULL test is only required because 'precision'
+ * FINISHME: statements are not yet supported.
+ */
+ if ($1 != NULL)
+ state->translation_unit.push_tail(& $1->link);
+ }
+ | external_declaration_list external_declaration
+ {
+ /* FINISHME: The NULL test is only required because 'precision'
+ * FINISHME: statements are not yet supported.
+ */
+ if ($2 != NULL)
+ state->translation_unit.push_tail(& $2->link);
+ }
+ ;
+
+variable_identifier:
+ IDENTIFIER
+ ;
+
+primary_expression:
+ variable_identifier
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_identifier, NULL, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->primary_expression.identifier = $1;
+ }
+ | INTCONSTANT
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_int_constant, NULL, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->primary_expression.int_constant = $1;
+ }
+ | UINTCONSTANT
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_uint_constant, NULL, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->primary_expression.uint_constant = $1;
+ }
+ | FLOATCONSTANT
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_float_constant, NULL, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->primary_expression.float_constant = $1;
+ }
+ | BOOLCONSTANT
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_bool_constant, NULL, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->primary_expression.bool_constant = $1;
+ }
+ | '(' expression ')'
+ {
+ $$ = $2;
+ }
+ ;
+
+postfix_expression:
+ primary_expression
+ | postfix_expression '[' integer_expression ']'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_array_index, $1, $3, NULL);
+ $$->set_location(yylloc);
+ }
+ | function_call
+ {
+ $$ = $1;
+ }
+ | postfix_expression '.' IDENTIFIER
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_field_selection, $1, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->primary_expression.identifier = $3;
+ }
+ | postfix_expression INC_OP
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_post_inc, $1, NULL, NULL);
+ $$->set_location(yylloc);
+ }
+ | postfix_expression DEC_OP
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_post_dec, $1, NULL, NULL);
+ $$->set_location(yylloc);
+ }
+ ;
+
+integer_expression:
+ expression
+ ;
+
+function_call:
+ function_call_or_method
+ ;
+
+function_call_or_method:
+ function_call_generic
+ | postfix_expression '.' function_call_generic
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_field_selection, $1, $3, NULL);
+ $$->set_location(yylloc);
+ }
+ ;
+
+function_call_generic:
+ function_call_header_with_parameters ')'
+ | function_call_header_no_parameters ')'
+ ;
+
+function_call_header_no_parameters:
+ function_call_header VOID_TOK
+ | function_call_header
+ ;
+
+function_call_header_with_parameters:
+ function_call_header assignment_expression
+ {
+ $$ = $1;
+ $$->set_location(yylloc);
+ $$->expressions.push_tail(& $2->link);
+ }
+ | function_call_header_with_parameters ',' assignment_expression
+ {
+ $$ = $1;
+ $$->set_location(yylloc);
+ $$->expressions.push_tail(& $3->link);
+ }
+ ;
+
+ // Grammar Note: Constructors look like functions, but lexical
+ // analysis recognized most of them as keywords. They are now
+ // recognized through "type_specifier".
+function_call_header:
+ function_identifier '('
+ ;
+
+function_identifier:
+ type_specifier
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_function_expression($1);
+ $$->set_location(yylloc);
+ }
+ | IDENTIFIER
+ {
+ void *ctx = state;
+ ast_expression *callee = new(ctx) ast_expression($1);
+ $$ = new(ctx) ast_function_expression(callee);
+ $$->set_location(yylloc);
+ }
+ | FIELD_SELECTION
+ {
+ void *ctx = state;
+ ast_expression *callee = new(ctx) ast_expression($1);
+ $$ = new(ctx) ast_function_expression(callee);
+ $$->set_location(yylloc);
+ }
+ ;
+
+ // Grammar Note: No traditional style type casts.
+unary_expression:
+ postfix_expression
+ | INC_OP unary_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_pre_inc, $2, NULL, NULL);
+ $$->set_location(yylloc);
+ }
+ | DEC_OP unary_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_pre_dec, $2, NULL, NULL);
+ $$->set_location(yylloc);
+ }
+ | unary_operator unary_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression($1, $2, NULL, NULL);
+ $$->set_location(yylloc);
+ }
+ ;
+
+ // Grammar Note: No '*' or '&' unary ops. Pointers are not supported.
+unary_operator:
+ '+' { $$ = ast_plus; }
+ | '-' { $$ = ast_neg; }
+ | '!' { $$ = ast_logic_not; }
+ | '~' { $$ = ast_bit_not; }
+ ;
+
+multiplicative_expression:
+ unary_expression
+ | multiplicative_expression '*' unary_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_mul, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | multiplicative_expression '/' unary_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_div, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | multiplicative_expression '%' unary_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_mod, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+additive_expression:
+ multiplicative_expression
+ | additive_expression '+' multiplicative_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_add, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | additive_expression '-' multiplicative_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_sub, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+shift_expression:
+ additive_expression
+ | shift_expression LEFT_OP additive_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_lshift, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | shift_expression RIGHT_OP additive_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_rshift, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+relational_expression:
+ shift_expression
+ | relational_expression '<' shift_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_less, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | relational_expression '>' shift_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_greater, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | relational_expression LE_OP shift_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_lequal, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | relational_expression GE_OP shift_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_gequal, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+equality_expression:
+ relational_expression
+ | equality_expression EQ_OP relational_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_equal, $1, $3);
+ $$->set_location(yylloc);
+ }
+ | equality_expression NE_OP relational_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_nequal, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+and_expression:
+ equality_expression
+ | and_expression '&' equality_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_bit_or, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+exclusive_or_expression:
+ and_expression
+ | exclusive_or_expression '^' and_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_bit_xor, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+inclusive_or_expression:
+ exclusive_or_expression
+ | inclusive_or_expression '|' exclusive_or_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_bit_or, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+logical_and_expression:
+ inclusive_or_expression
+ | logical_and_expression AND_OP inclusive_or_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_logic_and, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+logical_xor_expression:
+ logical_and_expression
+ | logical_xor_expression XOR_OP logical_and_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_logic_xor, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+logical_or_expression:
+ logical_xor_expression
+ | logical_or_expression OR_OP logical_xor_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_bin(ast_logic_or, $1, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+conditional_expression:
+ logical_or_expression
+ | logical_or_expression '?' expression ':' assignment_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression(ast_conditional, $1, $3, $5);
+ $$->set_location(yylloc);
+ }
+ ;
+
+assignment_expression:
+ conditional_expression
+ | unary_expression assignment_operator assignment_expression
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression($2, $1, $3, NULL);
+ $$->set_location(yylloc);
+ }
+ ;
+
+assignment_operator:
+ '=' { $$ = ast_assign; }
+ | MUL_ASSIGN { $$ = ast_mul_assign; }
+ | DIV_ASSIGN { $$ = ast_div_assign; }
+ | MOD_ASSIGN { $$ = ast_mod_assign; }
+ | ADD_ASSIGN { $$ = ast_add_assign; }
+ | SUB_ASSIGN { $$ = ast_sub_assign; }
+ | LEFT_ASSIGN { $$ = ast_ls_assign; }
+ | RIGHT_ASSIGN { $$ = ast_rs_assign; }
+ | AND_ASSIGN { $$ = ast_and_assign; }
+ | XOR_ASSIGN { $$ = ast_xor_assign; }
+ | OR_ASSIGN { $$ = ast_or_assign; }
+ ;
+
+expression:
+ assignment_expression
+ {
+ $$ = $1;
+ }
+ | expression ',' assignment_expression
+ {
+ void *ctx = state;
+ if ($1->oper != ast_sequence) {
+ $$ = new(ctx) ast_expression(ast_sequence, NULL, NULL, NULL);
+ $$->set_location(yylloc);
+ $$->expressions.push_tail(& $1->link);
+ } else {
+ $$ = $1;
+ }
+
+ $$->expressions.push_tail(& $3->link);
+ }
+ ;
+
+constant_expression:
+ conditional_expression
+ ;
+
+declaration:
+ function_prototype ';'
+ {
+ $$ = $1;
+ }
+ | init_declarator_list ';'
+ {
+ $$ = $1;
+ }
+ | PRECISION precision_qualifier type_specifier_no_prec ';'
+ {
+ if (($3->type_specifier != ast_float)
+ && ($3->type_specifier != ast_int)) {
+ _mesa_glsl_error(& @3, state, "global precision qualifier can "
+ "only be applied to `int' or `float'\n");
+ YYERROR;
+ }
+
+ $$ = NULL; /* FINISHME */
+ }
+ ;
+
+function_prototype:
+ function_declarator ')'
+ ;
+
+function_declarator:
+ function_header
+ | function_header_with_parameters
+ ;
+
+function_header_with_parameters:
+ function_header parameter_declaration
+ {
+ $$ = $1;
+ $$->parameters.push_tail(& $2->link);
+ }
+ | function_header_with_parameters ',' parameter_declaration
+ {
+ $$ = $1;
+ $$->parameters.push_tail(& $3->link);
+ }
+ ;
+
+function_header:
+ fully_specified_type IDENTIFIER '('
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_function();
+ $$->set_location(yylloc);
+ $$->return_type = $1;
+ $$->identifier = $2;
+ }
+ ;
+
+parameter_declarator:
+ type_specifier IDENTIFIER
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_parameter_declarator();
+ $$->set_location(yylloc);
+ $$->type = new(ctx) ast_fully_specified_type();
+ $$->type->set_location(yylloc);
+ $$->type->specifier = $1;
+ $$->identifier = $2;
+ }
+ | type_specifier IDENTIFIER '[' constant_expression ']'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_parameter_declarator();
+ $$->set_location(yylloc);
+ $$->type = new(ctx) ast_fully_specified_type();
+ $$->type->set_location(yylloc);
+ $$->type->specifier = $1;
+ $$->identifier = $2;
+ $$->is_array = true;
+ $$->array_size = $4;
+ }
+ ;
+
+parameter_declaration:
+ parameter_type_qualifier parameter_qualifier parameter_declarator
+ {
+ $1.i |= $2.i;
+
+ $$ = $3;
+ $$->type->qualifier = $1.q;
+ }
+ | parameter_qualifier parameter_declarator
+ {
+ $$ = $2;
+ $$->type->qualifier = $1.q;
+ }
+ | parameter_type_qualifier parameter_qualifier parameter_type_specifier
+ {
+ void *ctx = state;
+ $1.i |= $2.i;
+
+ $$ = new(ctx) ast_parameter_declarator();
+ $$->set_location(yylloc);
+ $$->type = new(ctx) ast_fully_specified_type();
+ $$->type->qualifier = $1.q;
+ $$->type->specifier = $3;
+ }
+ | parameter_qualifier parameter_type_specifier
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_parameter_declarator();
+ $$->set_location(yylloc);
+ $$->type = new(ctx) ast_fully_specified_type();
+ $$->type->qualifier = $1.q;
+ $$->type->specifier = $2;
+ }
+ ;
+
+parameter_qualifier:
+ /* empty */ { $$.i = 0; }
+ | IN_TOK { $$.i = 0; $$.q.in = 1; }
+ | OUT_TOK { $$.i = 0; $$.q.out = 1; }
+ | INOUT_TOK { $$.i = 0; $$.q.in = 1; $$.q.out = 1; }
+ ;
+
+parameter_type_specifier:
+ type_specifier
+ ;
+
+init_declarator_list:
+ single_declaration
+ | init_declarator_list ',' IDENTIFIER
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($3, false, NULL, NULL);
+ decl->set_location(yylloc);
+
+ $$ = $1;
+ $$->declarations.push_tail(&decl->link);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' ']'
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($3, true, NULL, NULL);
+ decl->set_location(yylloc);
+
+ $$ = $1;
+ $$->declarations.push_tail(&decl->link);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' constant_expression ']'
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($3, true, $5, NULL);
+ decl->set_location(yylloc);
+
+ $$ = $1;
+ $$->declarations.push_tail(&decl->link);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' ']' '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($3, true, NULL, $7);
+ decl->set_location(yylloc);
+
+ $$ = $1;
+ $$->declarations.push_tail(&decl->link);
+ }
+ | init_declarator_list ',' IDENTIFIER '[' constant_expression ']' '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($3, true, $5, $8);
+ decl->set_location(yylloc);
+
+ $$ = $1;
+ $$->declarations.push_tail(&decl->link);
+ }
+ | init_declarator_list ',' IDENTIFIER '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($3, false, NULL, $5);
+ decl->set_location(yylloc);
+
+ $$ = $1;
+ $$->declarations.push_tail(&decl->link);
+ }
+ ;
+
+ // Grammar Note: No 'enum', or 'typedef'.
+single_declaration:
+ fully_specified_type
+ {
+ void *ctx = state;
+ if ($1->specifier->type_specifier != ast_struct) {
+ _mesa_glsl_error(& @1, state, "empty declaration list\n");
+ YYERROR;
+ } else {
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ }
+ }
+ | fully_specified_type IDENTIFIER
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, false, NULL, NULL);
+
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ $$->declarations.push_tail(&decl->link);
+ }
+ | fully_specified_type IDENTIFIER '[' ']'
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, true, NULL, NULL);
+
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ $$->declarations.push_tail(&decl->link);
+ }
+ | fully_specified_type IDENTIFIER '[' constant_expression ']'
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, true, $4, NULL);
+
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ $$->declarations.push_tail(&decl->link);
+ }
+ | fully_specified_type IDENTIFIER '[' ']' '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, true, NULL, $6);
+
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ $$->declarations.push_tail(&decl->link);
+ }
+ | fully_specified_type IDENTIFIER '[' constant_expression ']' '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, true, $4, $7);
+
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ $$->declarations.push_tail(&decl->link);
+ }
+ | fully_specified_type IDENTIFIER '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, false, NULL, $4);
+
+ $$ = new(ctx) ast_declarator_list($1);
+ $$->set_location(yylloc);
+ $$->declarations.push_tail(&decl->link);
+ }
+ | INVARIANT IDENTIFIER // Vertex only.
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, false, NULL, NULL);
+
+ $$ = new(ctx) ast_declarator_list(NULL);
+ $$->set_location(yylloc);
+ $$->invariant = true;
+
+ $$->declarations.push_tail(&decl->link);
+ }
+ ;
+
+fully_specified_type:
+ type_specifier
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_fully_specified_type();
+ $$->set_location(yylloc);
+ $$->specifier = $1;
+ }
+ | type_qualifier type_specifier
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_fully_specified_type();
+ $$->set_location(yylloc);
+ $$->qualifier = $1.q;
+ $$->specifier = $2;
+ }
+ ;
+
+opt_layout_qualifier:
+ { $$.i = 0; }
+ | layout_qualifier
+ ;
+
+layout_qualifier:
+ LAYOUT_TOK '(' layout_qualifier_id_list ')'
+ {
+ $$ = $3;
+ }
+ ;
+
+layout_qualifier_id_list:
+ layout_qualifier_id
+ | layout_qualifier_id_list ',' layout_qualifier_id
+ {
+ $$.i = $1.i | $3.i;
+ }
+ ;
+
+layout_qualifier_id:
+ IDENTIFIER
+ {
+ $$.i = 0;
+
+ if (state->ARB_fragment_coord_conventions_enable) {
+ bool got_one = false;
+
+ if (strcmp($1, "origin_upper_left") == 0) {
+ got_one = true;
+ $$.q.origin_upper_left = 1;
+ } else if (strcmp($1, "pixel_center_integer") == 0) {
+ got_one = true;
+ $$.q.pixel_center_integer = 1;
+ }
+
+ if (state->ARB_fragment_coord_conventions_warn && got_one) {
+ _mesa_glsl_warning(& @1, state,
+ "GL_ARB_fragment_coord_conventions layout "
+ "identifier `%s' used\n", $1);
+ }
+ }
+
+ /* If the identifier didn't match any known layout identifiers,
+ * emit an error.
+ */
+ if ($$.i == 0) {
+ _mesa_glsl_error(& @1, state, "unrecognized layout identifier "
+ "`%s'\n", $1);
+ YYERROR;
+ }
+ }
+ ;
+
+interpolation_qualifier:
+ SMOOTH { $$.i = 0; $$.q.smooth = 1; }
+ | FLAT { $$.i = 0; $$.q.flat = 1; }
+ | NOPERSPECTIVE { $$.i = 0; $$.q.noperspective = 1; }
+ ;
+
+parameter_type_qualifier:
+ CONST_TOK { $$.i = 0; $$.q.constant = 1; }
+ ;
+
+type_qualifier:
+ storage_qualifier
+ | interpolation_qualifier type_qualifier
+ {
+ $$.i = $1.i | $2.i;
+ }
+ | INVARIANT type_qualifier
+ {
+ $$ = $2;
+ $$.q.invariant = 1;
+ }
+ ;
+
+storage_qualifier:
+ CONST_TOK { $$.i = 0; $$.q.constant = 1; }
+ | ATTRIBUTE { $$.i = 0; $$.q.attribute = 1; }
+ | opt_layout_qualifier VARYING { $$.i = $1.i; $$.q.varying = 1; }
+ | CENTROID VARYING { $$.i = 0; $$.q.centroid = 1; $$.q.varying = 1; }
+ | opt_layout_qualifier IN_TOK { $$.i = 0; $$.q.in = 1; }
+ | OUT_TOK { $$.i = 0; $$.q.out = 1; }
+ | CENTROID IN_TOK { $$.i = 0; $$.q.centroid = 1; $$.q.in = 1; }
+ | CENTROID OUT_TOK { $$.i = 0; $$.q.centroid = 1; $$.q.out = 1; }
+ | UNIFORM { $$.i = 0; $$.q.uniform = 1; }
+ ;
+
+type_specifier:
+ type_specifier_no_prec
+ | precision_qualifier type_specifier_no_prec
+ {
+ $$ = $2;
+ $$->precision = $1;
+ }
+ ;
+
+type_specifier_no_prec:
+ type_specifier_nonarray
+ | type_specifier_nonarray '[' ']'
+ {
+ $$ = $1;
+ $$->is_array = true;
+ $$->array_size = NULL;
+ }
+ | type_specifier_nonarray '[' constant_expression ']'
+ {
+ $$ = $1;
+ $$->is_array = true;
+ $$->array_size = $3;
+ }
+ ;
+
+type_specifier_nonarray:
+ basic_type_specifier_nonarray
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_type_specifier($1);
+ $$->set_location(yylloc);
+ }
+ | struct_specifier
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_type_specifier($1);
+ $$->set_location(yylloc);
+ }
+ | IDENTIFIER
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_type_specifier($1);
+ $$->set_location(yylloc);
+ }
+ ;
+
+basic_type_specifier_nonarray:
+ VOID_TOK { $$ = ast_void; }
+ | FLOAT_TOK { $$ = ast_float; }
+ | INT_TOK { $$ = ast_int; }
+ | UINT_TOK { $$ = ast_uint; }
+ | BOOL_TOK { $$ = ast_bool; }
+ | VEC2 { $$ = ast_vec2; }
+ | VEC3 { $$ = ast_vec3; }
+ | VEC4 { $$ = ast_vec4; }
+ | BVEC2 { $$ = ast_bvec2; }
+ | BVEC3 { $$ = ast_bvec3; }
+ | BVEC4 { $$ = ast_bvec4; }
+ | IVEC2 { $$ = ast_ivec2; }
+ | IVEC3 { $$ = ast_ivec3; }
+ | IVEC4 { $$ = ast_ivec4; }
+ | UVEC2 { $$ = ast_uvec2; }
+ | UVEC3 { $$ = ast_uvec3; }
+ | UVEC4 { $$ = ast_uvec4; }
+ | MAT2X2 { $$ = ast_mat2; }
+ | MAT2X3 { $$ = ast_mat2x3; }
+ | MAT2X4 { $$ = ast_mat2x4; }
+ | MAT3X2 { $$ = ast_mat3x2; }
+ | MAT3X3 { $$ = ast_mat3; }
+ | MAT3X4 { $$ = ast_mat3x4; }
+ | MAT4X2 { $$ = ast_mat4x2; }
+ | MAT4X3 { $$ = ast_mat4x3; }
+ | MAT4X4 { $$ = ast_mat4; }
+ | SAMPLER1D { $$ = ast_sampler1d; }
+ | SAMPLER2D { $$ = ast_sampler2d; }
+ | SAMPLER2DRECT { $$ = ast_sampler2drect; }
+ | SAMPLER3D { $$ = ast_sampler3d; }
+ | SAMPLERCUBE { $$ = ast_samplercube; }
+ | SAMPLER1DSHADOW { $$ = ast_sampler1dshadow; }
+ | SAMPLER2DSHADOW { $$ = ast_sampler2dshadow; }
+ | SAMPLER2DRECTSHADOW { $$ = ast_sampler2drectshadow; }
+ | SAMPLERCUBESHADOW { $$ = ast_samplercubeshadow; }
+ | SAMPLER1DARRAY { $$ = ast_sampler1darray; }
+ | SAMPLER2DARRAY { $$ = ast_sampler2darray; }
+ | SAMPLER1DARRAYSHADOW { $$ = ast_sampler1darrayshadow; }
+ | SAMPLER2DARRAYSHADOW { $$ = ast_sampler2darrayshadow; }
+ | ISAMPLER1D { $$ = ast_isampler1d; }
+ | ISAMPLER2D { $$ = ast_isampler2d; }
+ | ISAMPLER3D { $$ = ast_isampler3d; }
+ | ISAMPLERCUBE { $$ = ast_isamplercube; }
+ | ISAMPLER1DARRAY { $$ = ast_isampler1darray; }
+ | ISAMPLER2DARRAY { $$ = ast_isampler2darray; }
+ | USAMPLER1D { $$ = ast_usampler1d; }
+ | USAMPLER2D { $$ = ast_usampler2d; }
+ | USAMPLER3D { $$ = ast_usampler3d; }
+ | USAMPLERCUBE { $$ = ast_usamplercube; }
+ | USAMPLER1DARRAY { $$ = ast_usampler1darray; }
+ | USAMPLER2DARRAY { $$ = ast_usampler2darray; }
+ ;
+
+precision_qualifier:
+ HIGHP {
+ if (!state->es_shader && state->language_version < 130)
+ _mesa_glsl_error(& @1, state,
+ "precision qualifier forbidden "
+ "in GLSL %d.%d (1.30 or later "
+ "required)\n",
+ state->language_version / 100,
+ state->language_version % 100);
+
+ $$ = ast_precision_high;
+ }
+ | MEDIUMP {
+ if (!state->es_shader && state->language_version < 130)
+ _mesa_glsl_error(& @1, state,
+ "precision qualifier forbidden "
+ "in GLSL %d.%d (1.30 or later "
+ "required)\n",
+ state->language_version / 100,
+ state->language_version % 100);
+
+ $$ = ast_precision_medium;
+ }
+ | LOWP {
+ if (!state->es_shader && state->language_version < 130)
+ _mesa_glsl_error(& @1, state,
+ "precision qualifier forbidden "
+ "in GLSL %d.%d (1.30 or later "
+ "required)\n",
+ state->language_version / 100,
+ state->language_version % 100);
+
+ $$ = ast_precision_low;
+ }
+ ;
+
+struct_specifier:
+ STRUCT IDENTIFIER '{' struct_declaration_list '}'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_struct_specifier($2, $4);
+ $$->set_location(yylloc);
+ }
+ | STRUCT '{' struct_declaration_list '}'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_struct_specifier(NULL, $3);
+ $$->set_location(yylloc);
+ }
+ ;
+
+struct_declaration_list:
+ struct_declaration
+ {
+ $$ = (ast_node *) $1;
+ $1->link.self_link();
+ }
+ | struct_declaration_list struct_declaration
+ {
+ $$ = (ast_node *) $1;
+ $$->link.insert_before(& $2->link);
+ }
+ ;
+
+struct_declaration:
+ type_specifier struct_declarator_list ';'
+ {
+ void *ctx = state;
+ ast_fully_specified_type *type = new(ctx) ast_fully_specified_type();
+ type->set_location(yylloc);
+
+ type->specifier = $1;
+ $$ = new(ctx) ast_declarator_list(type);
+ $$->set_location(yylloc);
+
+ $$->declarations.push_degenerate_list_at_head(& $2->link);
+ }
+ ;
+
+struct_declarator_list:
+ struct_declarator
+ {
+ $$ = $1;
+ $1->link.self_link();
+ }
+ | struct_declarator_list ',' struct_declarator
+ {
+ $$ = $1;
+ $$->link.insert_before(& $3->link);
+ }
+ ;
+
+struct_declarator:
+ IDENTIFIER
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_declaration($1, false, NULL, NULL);
+ $$->set_location(yylloc);
+ }
+ | IDENTIFIER '[' constant_expression ']'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_declaration($1, true, $3, NULL);
+ $$->set_location(yylloc);
+ }
+ ;
+
+initializer:
+ assignment_expression
+ ;
+
+declaration_statement:
+ declaration
+ ;
+
+ // Grammar Note: labeled statements for SWITCH only; 'goto' is not
+ // supported.
+statement:
+ compound_statement { $$ = (ast_node *) $1; }
+ | simple_statement
+ ;
+
+simple_statement:
+ declaration_statement
+ | expression_statement
+ | selection_statement
+ | switch_statement { $$ = NULL; }
+ | case_label { $$ = NULL; }
+ | iteration_statement
+ | jump_statement
+ ;
+
+compound_statement:
+ '{' '}'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_compound_statement(true, NULL);
+ $$->set_location(yylloc);
+ }
+ | '{' statement_list '}'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_compound_statement(true, $2);
+ $$->set_location(yylloc);
+ }
+ ;
+
+statement_no_new_scope:
+ compound_statement_no_new_scope { $$ = (ast_node *) $1; }
+ | simple_statement
+ ;
+
+compound_statement_no_new_scope:
+ '{' '}'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_compound_statement(false, NULL);
+ $$->set_location(yylloc);
+ }
+ | '{' statement_list '}'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_compound_statement(false, $2);
+ $$->set_location(yylloc);
+ }
+ ;
+
+statement_list:
+ statement
+ {
+ if ($1 == NULL) {
+ _mesa_glsl_error(& @1, state, "<nil> statement\n");
+ assert($1 != NULL);
+ }
+
+ $$ = $1;
+ $$->link.self_link();
+ }
+ | statement_list statement
+ {
+ if ($2 == NULL) {
+ _mesa_glsl_error(& @2, state, "<nil> statement\n");
+ assert($2 != NULL);
+ }
+ $$ = $1;
+ $$->link.insert_before(& $2->link);
+ }
+ ;
+
+expression_statement:
+ ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_statement(NULL);
+ $$->set_location(yylloc);
+ }
+ | expression ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_expression_statement($1);
+ $$->set_location(yylloc);
+ }
+ ;
+
+selection_statement:
+ IF '(' expression ')' selection_rest_statement
+ {
+ $$ = new(state) ast_selection_statement($3, $5.then_statement,
+ $5.else_statement);
+ $$->set_location(yylloc);
+ }
+ ;
+
+selection_rest_statement:
+ statement ELSE statement
+ {
+ $$.then_statement = $1;
+ $$.else_statement = $3;
+ }
+ | statement
+ {
+ $$.then_statement = $1;
+ $$.else_statement = NULL;
+ }
+ ;
+
+condition:
+ expression
+ {
+ $$ = (ast_node *) $1;
+ }
+ | fully_specified_type IDENTIFIER '=' initializer
+ {
+ void *ctx = state;
+ ast_declaration *decl = new(ctx) ast_declaration($2, false, NULL, $4);
+ ast_declarator_list *declarator = new(ctx) ast_declarator_list($1);
+ decl->set_location(yylloc);
+ declarator->set_location(yylloc);
+
+ declarator->declarations.push_tail(&decl->link);
+ $$ = declarator;
+ }
+ ;
+
+switch_statement:
+ SWITCH '(' expression ')' compound_statement
+ ;
+
+case_label:
+ CASE expression ':'
+ | DEFAULT ':'
+ ;
+
+iteration_statement:
+ WHILE '(' condition ')' statement_no_new_scope
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_iteration_statement(ast_iteration_statement::ast_while,
+ NULL, $3, NULL, $5);
+ $$->set_location(yylloc);
+ }
+ | DO statement WHILE '(' expression ')' ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_iteration_statement(ast_iteration_statement::ast_do_while,
+ NULL, $5, NULL, $2);
+ $$->set_location(yylloc);
+ }
+ | FOR '(' for_init_statement for_rest_statement ')' statement_no_new_scope
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_iteration_statement(ast_iteration_statement::ast_for,
+ $3, $4.cond, $4.rest, $6);
+ $$->set_location(yylloc);
+ }
+ ;
+
+for_init_statement:
+ expression_statement
+ | declaration_statement
+ ;
+
+conditionopt:
+ condition
+ | /* empty */
+ {
+ $$ = NULL;
+ }
+ ;
+
+for_rest_statement:
+ conditionopt ';'
+ {
+ $$.cond = $1;
+ $$.rest = NULL;
+ }
+ | conditionopt ';' expression
+ {
+ $$.cond = $1;
+ $$.rest = $3;
+ }
+ ;
+
+ // Grammar Note: No 'goto'. Gotos are not supported.
+jump_statement:
+ CONTINUE ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_jump_statement(ast_jump_statement::ast_continue, NULL);
+ $$->set_location(yylloc);
+ }
+ | BREAK ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_jump_statement(ast_jump_statement::ast_break, NULL);
+ $$->set_location(yylloc);
+ }
+ | RETURN ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_jump_statement(ast_jump_statement::ast_return, NULL);
+ $$->set_location(yylloc);
+ }
+ | RETURN expression ';'
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_jump_statement(ast_jump_statement::ast_return, $2);
+ $$->set_location(yylloc);
+ }
+ | DISCARD ';' // Fragment shader only.
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_jump_statement(ast_jump_statement::ast_discard, NULL);
+ $$->set_location(yylloc);
+ }
+ ;
+
+external_declaration:
+ function_definition { $$ = $1; }
+ | declaration { $$ = $1; }
+ | pragma_statement { $$ = NULL; }
+ ;
+
+function_definition:
+ function_prototype compound_statement_no_new_scope
+ {
+ void *ctx = state;
+ $$ = new(ctx) ast_function_definition();
+ $$->set_location(yylloc);
+ $$->prototype = $1;
+ $$->body = $2;
+ }
+ ;
diff --git a/mesalib/src/glsl/glsl_parser_extras.cpp b/mesalib/src/glsl/glsl_parser_extras.cpp
new file mode 100644
index 000000000..33ea664bc
--- /dev/null
+++ b/mesalib/src/glsl/glsl_parser_extras.cpp
@@ -0,0 +1,762 @@
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+
+extern "C" {
+#include <talloc.h>
+#include "main/core.h" /* for struct __GLcontextRec */
+}
+
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_parser.h"
+#include "ir_optimization.h"
+#include "loop_analysis.h"
+
+_mesa_glsl_parse_state::_mesa_glsl_parse_state(struct __GLcontextRec *ctx,
+ GLenum target, void *mem_ctx)
+{
+ switch (target) {
+ case GL_VERTEX_SHADER: this->target = vertex_shader; break;
+ case GL_FRAGMENT_SHADER: this->target = fragment_shader; break;
+ case GL_GEOMETRY_SHADER: this->target = geometry_shader; break;
+ }
+
+ this->scanner = NULL;
+ this->translation_unit.make_empty();
+ this->symbols = new(mem_ctx) glsl_symbol_table;
+ this->info_log = talloc_strdup(mem_ctx, "");
+ this->error = false;
+ this->loop_or_switch_nesting = NULL;
+
+ /* Set default language version and extensions */
+ this->language_version = 110;
+ this->es_shader = false;
+ this->ARB_texture_rectangle_enable = true;
+
+ /* OpenGL ES 2.0 has different defaults from desktop GL. */
+ if (ctx->API == API_OPENGLES2) {
+ this->language_version = 100;
+ this->es_shader = true;
+ this->ARB_texture_rectangle_enable = false;
+ }
+
+ this->extensions = &ctx->Extensions;
+
+ this->Const.MaxLights = ctx->Const.MaxLights;
+ this->Const.MaxClipPlanes = ctx->Const.MaxClipPlanes;
+ this->Const.MaxTextureUnits = ctx->Const.MaxTextureUnits;
+ this->Const.MaxTextureCoords = ctx->Const.MaxTextureCoordUnits;
+ this->Const.MaxVertexAttribs = ctx->Const.VertexProgram.MaxAttribs;
+ this->Const.MaxVertexUniformComponents = ctx->Const.VertexProgram.MaxUniformComponents;
+ this->Const.MaxVaryingFloats = ctx->Const.MaxVarying * 4;
+ this->Const.MaxVertexTextureImageUnits = ctx->Const.MaxVertexTextureImageUnits;
+ this->Const.MaxCombinedTextureImageUnits = ctx->Const.MaxCombinedTextureImageUnits;
+ this->Const.MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
+ this->Const.MaxFragmentUniformComponents = ctx->Const.FragmentProgram.MaxUniformComponents;
+
+ this->Const.MaxDrawBuffers = ctx->Const.MaxDrawBuffers;
+}
+
+const char *
+_mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target)
+{
+ switch (target) {
+ case vertex_shader: return "vertex";
+ case fragment_shader: return "fragment";
+ case geometry_shader: return "geometry";
+ case ir_shader: break;
+ }
+
+ assert(!"Should not get here.");
+ return "unknown";
+}
+
+
+void
+_mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ state->error = true;
+
+ assert(state->info_log != NULL);
+ state->info_log = talloc_asprintf_append(state->info_log,
+ "%u:%u(%u): error: ",
+ locp->source,
+ locp->first_line,
+ locp->first_column);
+ va_start(ap, fmt);
+ state->info_log = talloc_vasprintf_append(state->info_log, fmt, ap);
+ va_end(ap);
+ state->info_log = talloc_strdup_append(state->info_log, "\n");
+}
+
+
+void
+_mesa_glsl_warning(const YYLTYPE *locp, _mesa_glsl_parse_state *state,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ assert(state->info_log != NULL);
+ state->info_log = talloc_asprintf_append(state->info_log,
+ "%u:%u(%u): warning: ",
+ locp->source,
+ locp->first_line,
+ locp->first_column);
+ va_start(ap, fmt);
+ state->info_log = talloc_vasprintf_append(state->info_log, fmt, ap);
+ va_end(ap);
+ state->info_log = talloc_strdup_append(state->info_log, "\n");
+}
+
+
+bool
+_mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
+ const char *behavior, YYLTYPE *behavior_locp,
+ _mesa_glsl_parse_state *state)
+{
+ enum {
+ extension_disable,
+ extension_enable,
+ extension_require,
+ extension_warn
+ } ext_mode;
+
+ if (strcmp(behavior, "warn") == 0) {
+ ext_mode = extension_warn;
+ } else if (strcmp(behavior, "require") == 0) {
+ ext_mode = extension_require;
+ } else if (strcmp(behavior, "enable") == 0) {
+ ext_mode = extension_enable;
+ } else if (strcmp(behavior, "disable") == 0) {
+ ext_mode = extension_disable;
+ } else {
+ _mesa_glsl_error(behavior_locp, state,
+ "Unknown extension behavior `%s'",
+ behavior);
+ return false;
+ }
+
+ bool unsupported = false;
+
+ if (strcmp(name, "all") == 0) {
+ if ((ext_mode == extension_enable) || (ext_mode == extension_require)) {
+ _mesa_glsl_error(name_locp, state, "Cannot %s all extensions",
+ (ext_mode == extension_enable)
+ ? "enable" : "require");
+ return false;
+ }
+ } else if (strcmp(name, "GL_ARB_draw_buffers") == 0) {
+ /* This extension is only supported in fragment shaders.
+ */
+ if (state->target != fragment_shader) {
+ unsupported = true;
+ } else {
+ state->ARB_draw_buffers_enable = (ext_mode != extension_disable);
+ state->ARB_draw_buffers_warn = (ext_mode == extension_warn);
+ }
+ } else if (strcmp(name, "GL_ARB_fragment_coord_conventions") == 0) {
+ state->ARB_fragment_coord_conventions_enable =
+ (ext_mode != extension_disable);
+ state->ARB_fragment_coord_conventions_warn =
+ (ext_mode == extension_warn);
+
+ unsupported = !state->extensions->ARB_fragment_coord_conventions;
+ } else if (strcmp(name, "GL_ARB_texture_rectangle") == 0) {
+ state->ARB_texture_rectangle_enable = (ext_mode != extension_disable);
+ state->ARB_texture_rectangle_warn = (ext_mode == extension_warn);
+ } else if (strcmp(name, "GL_EXT_texture_array") == 0) {
+ state->EXT_texture_array_enable = (ext_mode != extension_disable);
+ state->EXT_texture_array_warn = (ext_mode == extension_warn);
+
+ unsupported = !state->extensions->EXT_texture_array;
+ } else {
+ unsupported = true;
+ }
+
+ if (unsupported) {
+ static const char *const fmt = "extension `%s' unsupported in %s shader";
+
+ if (ext_mode == extension_require) {
+ _mesa_glsl_error(name_locp, state, fmt,
+ name, _mesa_glsl_shader_target_name(state->target));
+ return false;
+ } else {
+ _mesa_glsl_warning(name_locp, state, fmt,
+ name, _mesa_glsl_shader_target_name(state->target));
+ }
+ }
+
+ return true;
+}
+
+void
+_mesa_ast_type_qualifier_print(const struct ast_type_qualifier *q)
+{
+ if (q->constant)
+ printf("const ");
+
+ if (q->invariant)
+ printf("invariant ");
+
+ if (q->attribute)
+ printf("attribute ");
+
+ if (q->varying)
+ printf("varying ");
+
+ if (q->in && q->out)
+ printf("inout ");
+ else {
+ if (q->in)
+ printf("in ");
+
+ if (q->out)
+ printf("out ");
+ }
+
+ if (q->centroid)
+ printf("centroid ");
+ if (q->uniform)
+ printf("uniform ");
+ if (q->smooth)
+ printf("smooth ");
+ if (q->flat)
+ printf("flat ");
+ if (q->noperspective)
+ printf("noperspective ");
+}
+
+
+void
+ast_node::print(void) const
+{
+ printf("unhandled node ");
+}
+
+
+ast_node::ast_node(void)
+{
+ this->location.source = 0;
+ this->location.line = 0;
+ this->location.column = 0;
+}
+
+
+static void
+ast_opt_array_size_print(bool is_array, const ast_expression *array_size)
+{
+ if (is_array) {
+ printf("[ ");
+
+ if (array_size)
+ array_size->print();
+
+ printf("] ");
+ }
+}
+
+
+void
+ast_compound_statement::print(void) const
+{
+ printf("{\n");
+
+ foreach_list_const(n, &this->statements) {
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ast->print();
+ }
+
+ printf("}\n");
+}
+
+
+ast_compound_statement::ast_compound_statement(int new_scope,
+ ast_node *statements)
+{
+ this->new_scope = new_scope;
+
+ if (statements != NULL) {
+ this->statements.push_degenerate_list_at_head(&statements->link);
+ }
+}
+
+
+void
+ast_expression::print(void) const
+{
+ switch (oper) {
+ case ast_assign:
+ case ast_mul_assign:
+ case ast_div_assign:
+ case ast_mod_assign:
+ case ast_add_assign:
+ case ast_sub_assign:
+ case ast_ls_assign:
+ case ast_rs_assign:
+ case ast_and_assign:
+ case ast_xor_assign:
+ case ast_or_assign:
+ subexpressions[0]->print();
+ printf("%s ", operator_string(oper));
+ subexpressions[1]->print();
+ break;
+
+ case ast_field_selection:
+ subexpressions[0]->print();
+ printf(". %s ", primary_expression.identifier);
+ break;
+
+ case ast_plus:
+ case ast_neg:
+ case ast_bit_not:
+ case ast_logic_not:
+ case ast_pre_inc:
+ case ast_pre_dec:
+ printf("%s ", operator_string(oper));
+ subexpressions[0]->print();
+ break;
+
+ case ast_post_inc:
+ case ast_post_dec:
+ subexpressions[0]->print();
+ printf("%s ", operator_string(oper));
+ break;
+
+ case ast_conditional:
+ subexpressions[0]->print();
+ printf("? ");
+ subexpressions[1]->print();
+ printf(": ");
+ subexpressions[1]->print();
+ break;
+
+ case ast_array_index:
+ subexpressions[0]->print();
+ printf("[ ");
+ subexpressions[1]->print();
+ printf("] ");
+ break;
+
+ case ast_function_call: {
+ subexpressions[0]->print();
+ printf("( ");
+
+ foreach_list_const (n, &this->expressions) {
+ if (n != this->expressions.get_head())
+ printf(", ");
+
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ast->print();
+ }
+
+ printf(") ");
+ break;
+ }
+
+ case ast_identifier:
+ printf("%s ", primary_expression.identifier);
+ break;
+
+ case ast_int_constant:
+ printf("%d ", primary_expression.int_constant);
+ break;
+
+ case ast_uint_constant:
+ printf("%u ", primary_expression.uint_constant);
+ break;
+
+ case ast_float_constant:
+ printf("%f ", primary_expression.float_constant);
+ break;
+
+ case ast_bool_constant:
+ printf("%s ",
+ primary_expression.bool_constant
+ ? "true" : "false");
+ break;
+
+ case ast_sequence: {
+ printf("( ");
+ foreach_list_const(n, & this->expressions) {
+ if (n != this->expressions.get_head())
+ printf(", ");
+
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ast->print();
+ }
+ printf(") ");
+ break;
+ }
+
+ default:
+ assert(0);
+ break;
+ }
+}
+
+ast_expression::ast_expression(int oper,
+ ast_expression *ex0,
+ ast_expression *ex1,
+ ast_expression *ex2)
+{
+ this->oper = ast_operators(oper);
+ this->subexpressions[0] = ex0;
+ this->subexpressions[1] = ex1;
+ this->subexpressions[2] = ex2;
+}
+
+
+void
+ast_expression_statement::print(void) const
+{
+ if (expression)
+ expression->print();
+
+ printf("; ");
+}
+
+
+ast_expression_statement::ast_expression_statement(ast_expression *ex) :
+ expression(ex)
+{
+ /* empty */
+}
+
+
+void
+ast_function::print(void) const
+{
+ return_type->print();
+ printf(" %s (", identifier);
+
+ foreach_list_const(n, & this->parameters) {
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ast->print();
+ }
+
+ printf(")");
+}
+
+
+ast_function::ast_function(void)
+ : is_definition(false), signature(NULL)
+{
+ /* empty */
+}
+
+
+void
+ast_fully_specified_type::print(void) const
+{
+ _mesa_ast_type_qualifier_print(& qualifier);
+ specifier->print();
+}
+
+
+void
+ast_parameter_declarator::print(void) const
+{
+ type->print();
+ if (identifier)
+ printf("%s ", identifier);
+ ast_opt_array_size_print(is_array, array_size);
+}
+
+
+void
+ast_function_definition::print(void) const
+{
+ prototype->print();
+ body->print();
+}
+
+
+void
+ast_declaration::print(void) const
+{
+ printf("%s ", identifier);
+ ast_opt_array_size_print(is_array, array_size);
+
+ if (initializer) {
+ printf("= ");
+ initializer->print();
+ }
+}
+
+
+ast_declaration::ast_declaration(char *identifier, int is_array,
+ ast_expression *array_size,
+ ast_expression *initializer)
+{
+ this->identifier = identifier;
+ this->is_array = is_array;
+ this->array_size = array_size;
+ this->initializer = initializer;
+}
+
+
+void
+ast_declarator_list::print(void) const
+{
+ assert(type || invariant);
+
+ if (type)
+ type->print();
+ else
+ printf("invariant ");
+
+ foreach_list_const (ptr, & this->declarations) {
+ if (ptr != this->declarations.get_head())
+ printf(", ");
+
+ ast_node *ast = exec_node_data(ast_node, ptr, link);
+ ast->print();
+ }
+
+ printf("; ");
+}
+
+
+ast_declarator_list::ast_declarator_list(ast_fully_specified_type *type)
+{
+ this->type = type;
+ this->invariant = false;
+}
+
+void
+ast_jump_statement::print(void) const
+{
+ switch (mode) {
+ case ast_continue:
+ printf("continue; ");
+ break;
+ case ast_break:
+ printf("break; ");
+ break;
+ case ast_return:
+ printf("return ");
+ if (opt_return_value)
+ opt_return_value->print();
+
+ printf("; ");
+ break;
+ case ast_discard:
+ printf("discard; ");
+ break;
+ }
+}
+
+
+ast_jump_statement::ast_jump_statement(int mode, ast_expression *return_value)
+{
+ this->mode = ast_jump_modes(mode);
+
+ if (mode == ast_return)
+ opt_return_value = return_value;
+}
+
+
+void
+ast_selection_statement::print(void) const
+{
+ printf("if ( ");
+ condition->print();
+ printf(") ");
+
+ then_statement->print();
+
+ if (else_statement) {
+ printf("else ");
+ else_statement->print();
+ }
+
+}
+
+
+ast_selection_statement::ast_selection_statement(ast_expression *condition,
+ ast_node *then_statement,
+ ast_node *else_statement)
+{
+ this->condition = condition;
+ this->then_statement = then_statement;
+ this->else_statement = else_statement;
+}
+
+
+void
+ast_iteration_statement::print(void) const
+{
+ switch (mode) {
+ case ast_for:
+ printf("for( ");
+ if (init_statement)
+ init_statement->print();
+ printf("; ");
+
+ if (condition)
+ condition->print();
+ printf("; ");
+
+ if (rest_expression)
+ rest_expression->print();
+ printf(") ");
+
+ body->print();
+ break;
+
+ case ast_while:
+ printf("while ( ");
+ if (condition)
+ condition->print();
+ printf(") ");
+ body->print();
+ break;
+
+ case ast_do_while:
+ printf("do ");
+ body->print();
+ printf("while ( ");
+ if (condition)
+ condition->print();
+ printf("); ");
+ break;
+ }
+}
+
+
+ast_iteration_statement::ast_iteration_statement(int mode,
+ ast_node *init,
+ ast_node *condition,
+ ast_expression *rest_expression,
+ ast_node *body)
+{
+ this->mode = ast_iteration_modes(mode);
+ this->init_statement = init;
+ this->condition = condition;
+ this->rest_expression = rest_expression;
+ this->body = body;
+}
+
+
+void
+ast_struct_specifier::print(void) const
+{
+ printf("struct %s { ", name);
+ foreach_list_const(n, &this->declarations) {
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ast->print();
+ }
+ printf("} ");
+}
+
+
+ast_struct_specifier::ast_struct_specifier(char *identifier,
+ ast_node *declarator_list)
+{
+ if (identifier == NULL) {
+ static unsigned anon_count = 1;
+ identifier = talloc_asprintf(this, "#anon_struct_%04x", anon_count);
+ anon_count++;
+ }
+ name = identifier;
+ this->declarations.push_degenerate_list_at_head(&declarator_list->link);
+}
+
+bool
+do_common_optimization(exec_list *ir, bool linked, unsigned max_unroll_iterations)
+{
+ GLboolean progress = GL_FALSE;
+
+ progress = do_sub_to_add_neg(ir) || progress;
+
+ if (linked) {
+ progress = do_function_inlining(ir) || progress;
+ progress = do_dead_functions(ir) || progress;
+ }
+ progress = do_structure_splitting(ir) || progress;
+ progress = do_if_simplification(ir) || progress;
+ progress = do_copy_propagation(ir) || progress;
+ if (linked)
+ progress = do_dead_code(ir) || progress;
+ else
+ progress = do_dead_code_unlinked(ir) || progress;
+ progress = do_dead_code_local(ir) || progress;
+ progress = do_tree_grafting(ir) || progress;
+ progress = do_constant_propagation(ir) || progress;
+ if (linked)
+ progress = do_constant_variable(ir) || progress;
+ else
+ progress = do_constant_variable_unlinked(ir) || progress;
+ progress = do_constant_folding(ir) || progress;
+ progress = do_algebraic(ir) || progress;
+ progress = do_lower_jumps(ir) || progress;
+ progress = do_vec_index_to_swizzle(ir) || progress;
+ progress = do_swizzle_swizzle(ir) || progress;
+ progress = do_noop_swizzle(ir) || progress;
+
+ progress = optimize_redundant_jumps(ir) || progress;
+
+ loop_state *ls = analyze_loop_variables(ir);
+ progress = set_loop_controls(ir, ls) || progress;
+ progress = unroll_loops(ir, ls, max_unroll_iterations) || progress;
+ delete ls;
+
+ return progress;
+}
+
+extern "C" {
+
+/**
+ * To be called at GL teardown time, this frees compiler datastructures.
+ *
+ * After calling this, any previously compiled shaders and shader
+ * programs would be invalid. So this should happen at approximately
+ * program exit.
+ */
+void
+_mesa_destroy_shader_compiler(void)
+{
+ _mesa_destroy_shader_compiler_caches();
+
+ _mesa_glsl_release_types();
+}
+
+/**
+ * Releases compiler caches to trade off performance for memory.
+ *
+ * Intended to be used with glReleaseShaderCompiler().
+ */
+void
+_mesa_destroy_shader_compiler_caches(void)
+{
+ _mesa_glsl_release_functions();
+}
+
+}
diff --git a/mesalib/src/glsl/glsl_parser_extras.h b/mesalib/src/glsl/glsl_parser_extras.h
new file mode 100644
index 000000000..f300ece4b
--- /dev/null
+++ b/mesalib/src/glsl/glsl_parser_extras.h
@@ -0,0 +1,240 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef GLSL_PARSER_EXTRAS_H
+#define GLSL_PARSER_EXTRAS_H
+
+/*
+ * Most of the definitions here only apply to C++
+ */
+#ifdef __cplusplus
+
+
+#include <cstdlib>
+#include "glsl_symbol_table.h"
+
+enum _mesa_glsl_parser_targets {
+ vertex_shader,
+ geometry_shader,
+ fragment_shader,
+ ir_shader
+};
+
+struct __GLcontextRec;
+
+struct _mesa_glsl_parse_state {
+ _mesa_glsl_parse_state(struct __GLcontextRec *ctx, GLenum target,
+ void *mem_ctx);
+
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'ctx' (or any of its ancestors). */
+ static void* operator new(size_t size, void *ctx)
+ {
+ void *mem = talloc_zero_size(ctx, size);
+ assert(mem != NULL);
+
+ return mem;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. */
+ static void operator delete(void *mem, void *ctx)
+ {
+ talloc_free(mem);
+ }
+ static void operator delete(void *mem)
+ {
+ talloc_free(mem);
+ }
+
+ void *scanner;
+ exec_list translation_unit;
+ glsl_symbol_table *symbols;
+
+ bool es_shader;
+ unsigned language_version;
+ enum _mesa_glsl_parser_targets target;
+
+ /**
+ * Implementation defined limits that affect built-in variables, etc.
+ *
+ * \sa struct gl_constants (in mtypes.h)
+ */
+ struct {
+ /* 1.10 */
+ unsigned MaxLights;
+ unsigned MaxClipPlanes;
+ unsigned MaxTextureUnits;
+ unsigned MaxTextureCoords;
+ unsigned MaxVertexAttribs;
+ unsigned MaxVertexUniformComponents;
+ unsigned MaxVaryingFloats;
+ unsigned MaxVertexTextureImageUnits;
+ unsigned MaxCombinedTextureImageUnits;
+ unsigned MaxTextureImageUnits;
+ unsigned MaxFragmentUniformComponents;
+
+ /* ARB_draw_buffers */
+ unsigned MaxDrawBuffers;
+ } Const;
+
+ /**
+ * During AST to IR conversion, pointer to current IR function
+ *
+ * Will be \c NULL whenever the AST to IR conversion is not inside a
+ * function definition.
+ */
+ class ir_function_signature *current_function;
+
+ /** Have we found a return statement in this function? */
+ bool found_return;
+
+ /** Was there an error during compilation? */
+ bool error;
+
+ /** Loop or switch statement containing the current instructions. */
+ class ir_instruction *loop_or_switch_nesting;
+ class ast_iteration_statement *loop_or_switch_nesting_ast;
+
+ /** List of structures defined in user code. */
+ const glsl_type **user_structures;
+ unsigned num_user_structures;
+
+ char *info_log;
+
+ /**
+ * \name Enable bits for GLSL extensions
+ */
+ /*@{*/
+ unsigned ARB_draw_buffers_enable:1;
+ unsigned ARB_draw_buffers_warn:1;
+ unsigned ARB_fragment_coord_conventions_enable:1;
+ unsigned ARB_fragment_coord_conventions_warn:1;
+ unsigned ARB_texture_rectangle_enable:1;
+ unsigned ARB_texture_rectangle_warn:1;
+ unsigned EXT_texture_array_enable:1;
+ unsigned EXT_texture_array_warn:1;
+ /*@}*/
+
+ /** Extensions supported by the OpenGL implementation. */
+ const struct gl_extensions *extensions;
+
+ /** Shaders containing built-in functions that are used for linking. */
+ struct gl_shader *builtins_to_link[16];
+ unsigned num_builtins_to_link;
+};
+
+typedef struct YYLTYPE {
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+ unsigned source;
+} YYLTYPE;
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+do { \
+ if (N) \
+ { \
+ (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC(Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC(Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC(Rhs, 0).last_column; \
+ } \
+ (Current).source = 0; \
+} while (0)
+
+extern void _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state,
+ const char *fmt, ...);
+
+/**
+ * Emit a warning to the shader log
+ *
+ * \sa _mesa_glsl_error
+ */
+extern void _mesa_glsl_warning(const YYLTYPE *locp,
+ _mesa_glsl_parse_state *state,
+ const char *fmt, ...);
+
+extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state,
+ const char *string);
+
+extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state);
+
+union YYSTYPE;
+extern int _mesa_glsl_lex(union YYSTYPE *yylval, YYLTYPE *yylloc,
+ void *scanner);
+
+extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state *);
+
+/**
+ * Process elements of the #extension directive
+ *
+ * \return
+ * If \c name and \c behavior are valid, \c true is returned. Otherwise
+ * \c false is returned.
+ */
+extern bool _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
+ const char *behavior,
+ YYLTYPE *behavior_locp,
+ _mesa_glsl_parse_state *state);
+
+/**
+ * Get the textual name of the specified shader target
+ */
+extern const char *
+_mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target);
+
+
+#endif /* __cplusplus */
+
+
+/*
+ * These definitions apply to C and C++
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int preprocess(void *ctx, const char **shader, char **info_log,
+ const struct gl_extensions *extensions, int api);
+
+extern void _mesa_destroy_shader_compiler();
+extern void _mesa_destroy_shader_compiler_caches();
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* GLSL_PARSER_EXTRAS_H */
diff --git a/mesalib/src/glsl/glsl_symbol_table.cpp b/mesalib/src/glsl/glsl_symbol_table.cpp
new file mode 100644
index 000000000..9537d86c9
--- /dev/null
+++ b/mesalib/src/glsl/glsl_symbol_table.cpp
@@ -0,0 +1,165 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glsl_symbol_table.h"
+
+class symbol_table_entry {
+public:
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'ctx' (or any of its ancestors). */
+ static void* operator new(size_t size, void *ctx)
+ {
+ void *entry = talloc_size(ctx, size);
+ assert(entry != NULL);
+ return entry;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. Here, C++ will have already called the
+ * destructor so tell talloc not to do that again. */
+ static void operator delete(void *table, void *ctx)
+ {
+ talloc_set_destructor(table, NULL);
+ talloc_free(table);
+ }
+ static void operator delete(void *table)
+ {
+ talloc_set_destructor(table, NULL);
+ talloc_free(table);
+ }
+
+ symbol_table_entry(ir_variable *v) : v(v), f(0), t(0) {}
+ symbol_table_entry(ir_function *f) : v(0), f(f), t(0) {}
+ symbol_table_entry(const glsl_type *t) : v(0), f(0), t(t) {}
+
+ ir_variable *v;
+ ir_function *f;
+ const glsl_type *t;
+};
+
+glsl_symbol_table::glsl_symbol_table()
+{
+ this->language_version = 120;
+ this->table = _mesa_symbol_table_ctor();
+ this->mem_ctx = talloc_init("symbol table entries");
+}
+
+glsl_symbol_table::~glsl_symbol_table()
+{
+ _mesa_symbol_table_dtor(table);
+ talloc_free(mem_ctx);
+}
+
+void glsl_symbol_table::push_scope()
+{
+ _mesa_symbol_table_push_scope(table);
+}
+
+void glsl_symbol_table::pop_scope()
+{
+ _mesa_symbol_table_pop_scope(table);
+}
+
+bool glsl_symbol_table::name_declared_this_scope(const char *name)
+{
+ return _mesa_symbol_table_symbol_scope(table, -1, name) == 0;
+}
+
+bool glsl_symbol_table::add_variable(const char *name, ir_variable *v)
+{
+ if (this->language_version == 110) {
+ /* In 1.10, functions and variables have separate namespaces. */
+ symbol_table_entry *existing = get_entry(name);
+ if (name_declared_this_scope(name)) {
+ /* If there's already an existing function (not a constructor!) in
+ * the current scope, just update the existing entry to include 'v'.
+ */
+ if (existing->v == NULL && existing->t == NULL) {
+ existing->v = v;
+ return true;
+ }
+ } else {
+ /* If not declared at this scope, add a new entry. But if an existing
+ * entry includes a function, propagate that to this block - otherwise
+ * the new variable declaration would shadow the function.
+ */
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(v);
+ if (existing != NULL)
+ entry->f = existing->f;
+ int added = _mesa_symbol_table_add_symbol(table, -1, name, entry);
+ assert(added == 0);
+ (void)added;
+ return true;
+ }
+ return false;
+ }
+
+ /* 1.20+ rules: */
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(v);
+ return _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0;
+}
+
+bool glsl_symbol_table::add_type(const char *name, const glsl_type *t)
+{
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(t);
+ return _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0;
+}
+
+bool glsl_symbol_table::add_function(const char *name, ir_function *f)
+{
+ if (this->language_version == 110 && name_declared_this_scope(name)) {
+ /* In 1.10, functions and variables have separate namespaces. */
+ symbol_table_entry *existing = get_entry(name);
+ if ((existing->f == NULL) && (existing->t == NULL)) {
+ existing->f = f;
+ return true;
+ }
+ }
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(f);
+ return _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0;
+}
+
+ir_variable *glsl_symbol_table::get_variable(const char *name)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->v : NULL;
+}
+
+const glsl_type *glsl_symbol_table::get_type(const char *name)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->t : NULL;
+}
+
+ir_function *glsl_symbol_table::get_function(const char *name)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->f : NULL;
+}
+
+symbol_table_entry *glsl_symbol_table::get_entry(const char *name)
+{
+ return (symbol_table_entry *)
+ _mesa_symbol_table_find_symbol(table, -1, name);
+}
diff --git a/mesalib/src/glsl/glsl_symbol_table.h b/mesalib/src/glsl/glsl_symbol_table.h
new file mode 100644
index 000000000..02c45b2e0
--- /dev/null
+++ b/mesalib/src/glsl/glsl_symbol_table.h
@@ -0,0 +1,126 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef GLSL_SYMBOL_TABLE
+#define GLSL_SYMBOL_TABLE
+
+#include <new>
+
+extern "C" {
+#include "program/symbol_table.h"
+}
+#include "ir.h"
+#include "glsl_types.h"
+
+class symbol_table_entry;
+
+/**
+ * Facade class for _mesa_symbol_table
+ *
+ * Wraps the existing \c _mesa_symbol_table data structure to enforce some
+ * type safe and some symbol table invariants.
+ */
+struct glsl_symbol_table {
+private:
+ static int
+ _glsl_symbol_table_destructor (glsl_symbol_table *table)
+ {
+ table->~glsl_symbol_table();
+
+ return 0;
+ }
+
+public:
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'ctx' (or any of its ancestors). */
+ static void* operator new(size_t size, void *ctx)
+ {
+ void *table;
+
+ table = talloc_size(ctx, size);
+ assert(table != NULL);
+
+ talloc_set_destructor(table, (int (*)(void*)) _glsl_symbol_table_destructor);
+
+ return table;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. Here, C++ will have already called the
+ * destructor so tell talloc not to do that again. */
+ static void operator delete(void *table, void *ctx)
+ {
+ talloc_set_destructor(table, NULL);
+ talloc_free(table);
+ }
+ static void operator delete(void *table)
+ {
+ talloc_set_destructor(table, NULL);
+ talloc_free(table);
+ }
+
+ glsl_symbol_table();
+ ~glsl_symbol_table();
+
+ unsigned int language_version;
+
+ void push_scope();
+ void pop_scope();
+
+ /**
+ * Determine whether a name was declared at the current scope
+ */
+ bool name_declared_this_scope(const char *name);
+
+ /**
+ * \name Methods to add symbols to the table
+ *
+ * There is some temptation to rename all these functions to \c add_symbol
+ * or similar. However, this breaks symmetry with the getter functions and
+ * reduces the clarity of the intention of code that uses these methods.
+ */
+ /*@{*/
+ bool add_variable(const char *name, ir_variable *v);
+ bool add_type(const char *name, const glsl_type *t);
+ bool add_function(const char *name, ir_function *f);
+ /*@}*/
+
+ /**
+ * \name Methods to get symbols from the table
+ */
+ /*@{*/
+ ir_variable *get_variable(const char *name);
+ const glsl_type *get_type(const char *name);
+ ir_function *get_function(const char *name);
+ /*@}*/
+
+private:
+ symbol_table_entry *get_entry(const char *name);
+
+ struct _mesa_symbol_table *table;
+ void *mem_ctx;
+};
+
+#endif /* GLSL_SYMBOL_TABLE */
diff --git a/mesalib/src/glsl/glsl_types.cpp b/mesalib/src/glsl/glsl_types.cpp
new file mode 100644
index 000000000..82eb47060
--- /dev/null
+++ b/mesalib/src/glsl/glsl_types.cpp
@@ -0,0 +1,497 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <cstdio>
+#include <stdlib.h>
+#include "main/core.h" /* for Elements */
+#include "glsl_symbol_table.h"
+#include "glsl_parser_extras.h"
+#include "glsl_types.h"
+#include "builtin_types.h"
+extern "C" {
+#include "program/hash_table.h"
+}
+
+hash_table *glsl_type::array_types = NULL;
+hash_table *glsl_type::record_types = NULL;
+void *glsl_type::mem_ctx = NULL;
+
+void
+glsl_type::init_talloc_type_ctx(void)
+{
+ if (glsl_type::mem_ctx == NULL) {
+ glsl_type::mem_ctx = talloc_autofree_context();
+ assert(glsl_type::mem_ctx != NULL);
+ }
+}
+
+glsl_type::glsl_type(GLenum gl_type,
+ unsigned base_type, unsigned vector_elements,
+ unsigned matrix_columns, const char *name) :
+ gl_type(gl_type),
+ base_type(base_type),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0),
+ vector_elements(vector_elements), matrix_columns(matrix_columns),
+ length(0)
+{
+ init_talloc_type_ctx();
+ this->name = talloc_strdup(this->mem_ctx, name);
+ /* Neither dimension is zero or both dimensions are zero.
+ */
+ assert((vector_elements == 0) == (matrix_columns == 0));
+ memset(& fields, 0, sizeof(fields));
+}
+
+glsl_type::glsl_type(GLenum gl_type,
+ enum glsl_sampler_dim dim, bool shadow, bool array,
+ unsigned type, const char *name) :
+ gl_type(gl_type),
+ base_type(GLSL_TYPE_SAMPLER),
+ sampler_dimensionality(dim), sampler_shadow(shadow),
+ sampler_array(array), sampler_type(type),
+ vector_elements(0), matrix_columns(0),
+ length(0)
+{
+ init_talloc_type_ctx();
+ this->name = talloc_strdup(this->mem_ctx, name);
+ memset(& fields, 0, sizeof(fields));
+}
+
+glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
+ const char *name) :
+ base_type(GLSL_TYPE_STRUCT),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0),
+ vector_elements(0), matrix_columns(0),
+ length(num_fields)
+{
+ unsigned int i;
+
+ init_talloc_type_ctx();
+ this->name = talloc_strdup(this->mem_ctx, name);
+ this->fields.structure = talloc_array(this->mem_ctx,
+ glsl_struct_field, length);
+ for (i = 0; i < length; i++) {
+ this->fields.structure[i].type = fields[i].type;
+ this->fields.structure[i].name = talloc_strdup(this->fields.structure,
+ fields[i].name);
+ }
+}
+
+static void
+add_types_to_symbol_table(glsl_symbol_table *symtab,
+ const struct glsl_type *types,
+ unsigned num_types, bool warn)
+{
+ (void) warn;
+
+ for (unsigned i = 0; i < num_types; i++) {
+ symtab->add_type(types[i].name, & types[i]);
+ }
+}
+
+void
+glsl_type::generate_100ES_types(glsl_symbol_table *symtab)
+{
+ add_types_to_symbol_table(symtab, builtin_core_types,
+ Elements(builtin_core_types),
+ false);
+ add_types_to_symbol_table(symtab, builtin_structure_types,
+ Elements(builtin_structure_types),
+ false);
+ add_types_to_symbol_table(symtab, &void_type, 1, false);
+}
+
+void
+glsl_type::generate_110_types(glsl_symbol_table *symtab)
+{
+ generate_100ES_types(symtab);
+
+ add_types_to_symbol_table(symtab, builtin_110_types,
+ Elements(builtin_110_types),
+ false);
+ add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types,
+ Elements(builtin_110_deprecated_structure_types),
+ false);
+}
+
+
+void
+glsl_type::generate_120_types(glsl_symbol_table *symtab)
+{
+ generate_110_types(symtab);
+
+ add_types_to_symbol_table(symtab, builtin_120_types,
+ Elements(builtin_120_types), false);
+}
+
+
+void
+glsl_type::generate_130_types(glsl_symbol_table *symtab)
+{
+ generate_120_types(symtab);
+
+ add_types_to_symbol_table(symtab, builtin_130_types,
+ Elements(builtin_130_types), false);
+ generate_EXT_texture_array_types(symtab, false);
+}
+
+
+void
+glsl_type::generate_ARB_texture_rectangle_types(glsl_symbol_table *symtab,
+ bool warn)
+{
+ add_types_to_symbol_table(symtab, builtin_ARB_texture_rectangle_types,
+ Elements(builtin_ARB_texture_rectangle_types),
+ warn);
+}
+
+
+void
+glsl_type::generate_EXT_texture_array_types(glsl_symbol_table *symtab,
+ bool warn)
+{
+ add_types_to_symbol_table(symtab, builtin_EXT_texture_array_types,
+ Elements(builtin_EXT_texture_array_types),
+ warn);
+}
+
+
+void
+_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
+{
+ switch (state->language_version) {
+ case 100:
+ assert(state->es_shader);
+ glsl_type::generate_100ES_types(state->symbols);
+ break;
+ case 110:
+ glsl_type::generate_110_types(state->symbols);
+ break;
+ case 120:
+ glsl_type::generate_120_types(state->symbols);
+ break;
+ case 130:
+ glsl_type::generate_130_types(state->symbols);
+ break;
+ default:
+ /* error */
+ break;
+ }
+
+ if (state->ARB_texture_rectangle_enable) {
+ glsl_type::generate_ARB_texture_rectangle_types(state->symbols,
+ state->ARB_texture_rectangle_warn);
+ }
+
+ if (state->EXT_texture_array_enable && state->language_version < 130) {
+ // These are already included in 130; don't create twice.
+ glsl_type::generate_EXT_texture_array_types(state->symbols,
+ state->EXT_texture_array_warn);
+ }
+}
+
+
+const glsl_type *glsl_type::get_base_type() const
+{
+ switch (base_type) {
+ case GLSL_TYPE_UINT:
+ return uint_type;
+ case GLSL_TYPE_INT:
+ return int_type;
+ case GLSL_TYPE_FLOAT:
+ return float_type;
+ case GLSL_TYPE_BOOL:
+ return bool_type;
+ default:
+ return error_type;
+ }
+}
+
+
+void
+_mesa_glsl_release_types(void)
+{
+ if (glsl_type::array_types != NULL) {
+ hash_table_dtor(glsl_type::array_types);
+ glsl_type::array_types = NULL;
+ }
+
+ if (glsl_type::record_types != NULL) {
+ hash_table_dtor(glsl_type::record_types);
+ glsl_type::record_types = NULL;
+ }
+}
+
+
+glsl_type::glsl_type(const glsl_type *array, unsigned length) :
+ base_type(GLSL_TYPE_ARRAY),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0),
+ vector_elements(0), matrix_columns(0),
+ name(NULL), length(length)
+{
+ this->fields.array = array;
+ /* Inherit the gl type of the base. The GL type is used for
+ * uniform/statevar handling in Mesa and the arrayness of the type
+ * is represented by the size rather than the type.
+ */
+ this->gl_type = array->gl_type;
+
+ /* Allow a maximum of 10 characters for the array size. This is enough
+ * for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
+ * NUL.
+ */
+ const unsigned name_length = strlen(array->name) + 10 + 3;
+ char *const n = (char *) talloc_size(this->mem_ctx, name_length);
+
+ if (length == 0)
+ snprintf(n, name_length, "%s[]", array->name);
+ else
+ snprintf(n, name_length, "%s[%u]", array->name, length);
+
+ this->name = n;
+}
+
+
+const glsl_type *
+glsl_type::get_instance(unsigned base_type, unsigned rows, unsigned columns)
+{
+ if (base_type == GLSL_TYPE_VOID)
+ return &void_type;
+
+ if ((rows < 1) || (rows > 4) || (columns < 1) || (columns > 4))
+ return error_type;
+
+ /* Treat GLSL vectors as Nx1 matrices.
+ */
+ if (columns == 1) {
+ switch (base_type) {
+ case GLSL_TYPE_UINT:
+ return uint_type + (rows - 1);
+ case GLSL_TYPE_INT:
+ return int_type + (rows - 1);
+ case GLSL_TYPE_FLOAT:
+ return float_type + (rows - 1);
+ case GLSL_TYPE_BOOL:
+ return bool_type + (rows - 1);
+ default:
+ return error_type;
+ }
+ } else {
+ if ((base_type != GLSL_TYPE_FLOAT) || (rows == 1))
+ return error_type;
+
+ /* GLSL matrix types are named mat{COLUMNS}x{ROWS}. Only the following
+ * combinations are valid:
+ *
+ * 1 2 3 4
+ * 1
+ * 2 x x x
+ * 3 x x x
+ * 4 x x x
+ */
+#define IDX(c,r) (((c-1)*3) + (r-1))
+
+ switch (IDX(columns, rows)) {
+ case IDX(2,2): return mat2_type;
+ case IDX(2,3): return mat2x3_type;
+ case IDX(2,4): return mat2x4_type;
+ case IDX(3,2): return mat3x2_type;
+ case IDX(3,3): return mat3_type;
+ case IDX(3,4): return mat3x4_type;
+ case IDX(4,2): return mat4x2_type;
+ case IDX(4,3): return mat4x3_type;
+ case IDX(4,4): return mat4_type;
+ default: return error_type;
+ }
+ }
+
+ assert(!"Should not get here.");
+ return error_type;
+}
+
+
+const glsl_type *
+glsl_type::get_array_instance(const glsl_type *base, unsigned array_size)
+{
+
+ if (array_types == NULL) {
+ array_types = hash_table_ctor(64, hash_table_string_hash,
+ hash_table_string_compare);
+ }
+
+ /* Generate a name using the base type pointer in the key. This is
+ * done because the name of the base type may not be unique across
+ * shaders. For example, two shaders may have different record types
+ * named 'foo'.
+ */
+ char key[128];
+ snprintf(key, sizeof(key), "%p[%u]", (void *) base, array_size);
+
+ const glsl_type *t = (glsl_type *) hash_table_find(array_types, key);
+ if (t == NULL) {
+ t = new glsl_type(base, array_size);
+
+ hash_table_insert(array_types, (void *) t, talloc_strdup(mem_ctx, key));
+ }
+
+ assert(t->base_type == GLSL_TYPE_ARRAY);
+ assert(t->length == array_size);
+ assert(t->fields.array == base);
+
+ return t;
+}
+
+
+int
+glsl_type::record_key_compare(const void *a, const void *b)
+{
+ const glsl_type *const key1 = (glsl_type *) a;
+ const glsl_type *const key2 = (glsl_type *) b;
+
+ /* Return zero is the types match (there is zero difference) or non-zero
+ * otherwise.
+ */
+ if (strcmp(key1->name, key2->name) != 0)
+ return 1;
+
+ if (key1->length != key2->length)
+ return 1;
+
+ for (unsigned i = 0; i < key1->length; i++) {
+ if (key1->fields.structure[i].type != key2->fields.structure[i].type)
+ return 1;
+ if (strcmp(key1->fields.structure[i].name,
+ key2->fields.structure[i].name) != 0)
+ return 1;
+ }
+
+ return 0;
+}
+
+
+unsigned
+glsl_type::record_key_hash(const void *a)
+{
+ const glsl_type *const key = (glsl_type *) a;
+ char hash_key[128];
+ unsigned size = 0;
+
+ size = snprintf(hash_key, sizeof(hash_key), "%08x", key->length);
+
+ for (unsigned i = 0; i < key->length; i++) {
+ if (size >= sizeof(hash_key))
+ break;
+
+ size += snprintf(& hash_key[size], sizeof(hash_key) - size,
+ "%p", (void *) key->fields.structure[i].type);
+ }
+
+ return hash_table_string_hash(& hash_key);
+}
+
+
+const glsl_type *
+glsl_type::get_record_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ const char *name)
+{
+ const glsl_type key(fields, num_fields, name);
+
+ if (record_types == NULL) {
+ record_types = hash_table_ctor(64, record_key_hash, record_key_compare);
+ }
+
+ const glsl_type *t = (glsl_type *) hash_table_find(record_types, & key);
+ if (t == NULL) {
+ t = new glsl_type(fields, num_fields, name);
+
+ hash_table_insert(record_types, (void *) t, t);
+ }
+
+ assert(t->base_type == GLSL_TYPE_STRUCT);
+ assert(t->length == num_fields);
+ assert(strcmp(t->name, name) == 0);
+
+ return t;
+}
+
+
+const glsl_type *
+glsl_type::field_type(const char *name) const
+{
+ if (this->base_type != GLSL_TYPE_STRUCT)
+ return error_type;
+
+ for (unsigned i = 0; i < this->length; i++) {
+ if (strcmp(name, this->fields.structure[i].name) == 0)
+ return this->fields.structure[i].type;
+ }
+
+ return error_type;
+}
+
+
+int
+glsl_type::field_index(const char *name) const
+{
+ if (this->base_type != GLSL_TYPE_STRUCT)
+ return -1;
+
+ for (unsigned i = 0; i < this->length; i++) {
+ if (strcmp(name, this->fields.structure[i].name) == 0)
+ return i;
+ }
+
+ return -1;
+}
+
+
+unsigned
+glsl_type::component_slots() const
+{
+ switch (this->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ case GLSL_TYPE_FLOAT:
+ case GLSL_TYPE_BOOL:
+ return this->components();
+
+ case GLSL_TYPE_STRUCT: {
+ unsigned size = 0;
+
+ for (unsigned i = 0; i < this->length; i++)
+ size += this->fields.structure[i].type->component_slots();
+
+ return size;
+ }
+
+ case GLSL_TYPE_ARRAY:
+ return this->length * this->fields.array->component_slots();
+
+ default:
+ return 0;
+ }
+}
diff --git a/mesalib/src/glsl/glsl_types.h b/mesalib/src/glsl/glsl_types.h
new file mode 100644
index 000000000..4f7d2f74a
--- /dev/null
+++ b/mesalib/src/glsl/glsl_types.h
@@ -0,0 +1,476 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef GLSL_TYPES_H
+#define GLSL_TYPES_H
+
+#include <cstring>
+#include <cassert>
+
+extern "C" {
+#include "GL/gl.h"
+#include <talloc.h>
+}
+
+struct _mesa_glsl_parse_state;
+struct glsl_symbol_table;
+
+extern "C" void
+_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state);
+
+extern "C" void
+_mesa_glsl_release_types(void);
+
+#define GLSL_TYPE_UINT 0
+#define GLSL_TYPE_INT 1
+#define GLSL_TYPE_FLOAT 2
+#define GLSL_TYPE_BOOL 3
+#define GLSL_TYPE_SAMPLER 4
+#define GLSL_TYPE_STRUCT 5
+#define GLSL_TYPE_ARRAY 6
+#define GLSL_TYPE_FUNCTION 7
+#define GLSL_TYPE_VOID 8
+#define GLSL_TYPE_ERROR 9
+
+enum glsl_sampler_dim {
+ GLSL_SAMPLER_DIM_1D = 0,
+ GLSL_SAMPLER_DIM_2D,
+ GLSL_SAMPLER_DIM_3D,
+ GLSL_SAMPLER_DIM_CUBE,
+ GLSL_SAMPLER_DIM_RECT,
+ GLSL_SAMPLER_DIM_BUF
+};
+
+
+struct glsl_type {
+ GLenum gl_type;
+ unsigned base_type:4;
+
+ unsigned sampler_dimensionality:3;
+ unsigned sampler_shadow:1;
+ unsigned sampler_array:1;
+ unsigned sampler_type:2; /**< Type of data returned using this sampler.
+ * only \c GLSL_TYPE_FLOAT, \c GLSL_TYPE_INT,
+ * and \c GLSL_TYPE_UINT are valid.
+ */
+
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'mem_ctx' (or any of its ancestors). */
+ static void* operator new(size_t size)
+ {
+ if (glsl_type::mem_ctx == NULL) {
+ glsl_type::mem_ctx = talloc_init("glsl_type");
+ assert(glsl_type::mem_ctx != NULL);
+ }
+
+ void *type;
+
+ type = talloc_size(glsl_type::mem_ctx, size);
+ assert(type != NULL);
+
+ return type;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. */
+ static void operator delete(void *type)
+ {
+ talloc_free(type);
+ }
+
+ /**
+ * \name Vector and matrix element counts
+ *
+ * For scalars, each of these values will be 1. For non-numeric types
+ * these will be 0.
+ */
+ /*@{*/
+ unsigned vector_elements:3; /**< 1, 2, 3, or 4 vector elements. */
+ unsigned matrix_columns:3; /**< 1, 2, 3, or 4 matrix columns. */
+ /*@}*/
+
+ /**
+ * Name of the data type
+ *
+ * This may be \c NULL for anonymous structures, for arrays, or for
+ * function types.
+ */
+ const char *name;
+
+ /**
+ * For \c GLSL_TYPE_ARRAY, this is the length of the array. For
+ * \c GLSL_TYPE_STRUCT, it is the number of elements in the structure and
+ * the number of values pointed to by \c fields.structure (below).
+ *
+ * For \c GLSL_TYPE_FUNCTION, it is the number of parameters to the
+ * function. The return value from a function is implicitly the first
+ * parameter. The types of the parameters are stored in
+ * \c fields.parameters (below).
+ */
+ unsigned length;
+
+ /**
+ * Subtype of composite data types.
+ */
+ union {
+ const struct glsl_type *array; /**< Type of array elements. */
+ const struct glsl_type *parameters; /**< Parameters to function. */
+ struct glsl_struct_field *structure; /**< List of struct fields. */
+ } fields;
+
+
+ /**
+ * \name Pointers to various public type singletons
+ */
+ /*@{*/
+ static const glsl_type *const error_type;
+ static const glsl_type *const int_type;
+ static const glsl_type *const ivec4_type;
+ static const glsl_type *const uint_type;
+ static const glsl_type *const uvec4_type;
+ static const glsl_type *const float_type;
+ static const glsl_type *const vec2_type;
+ static const glsl_type *const vec3_type;
+ static const glsl_type *const vec4_type;
+ static const glsl_type *const bool_type;
+ static const glsl_type *const mat2_type;
+ static const glsl_type *const mat2x3_type;
+ static const glsl_type *const mat2x4_type;
+ static const glsl_type *const mat3x2_type;
+ static const glsl_type *const mat3_type;
+ static const glsl_type *const mat3x4_type;
+ static const glsl_type *const mat4x2_type;
+ static const glsl_type *const mat4x3_type;
+ static const glsl_type *const mat4_type;
+ /*@}*/
+
+
+ /**
+ * For numeric and boolean derrived types returns the basic scalar type
+ *
+ * If the type is a numeric or boolean scalar, vector, or matrix type,
+ * this function gets the scalar type of the individual components. For
+ * all other types, including arrays of numeric or boolean types, the
+ * error type is returned.
+ */
+ const glsl_type *get_base_type() const;
+
+ /**
+ * Query the type of elements in an array
+ *
+ * \return
+ * Pointer to the type of elements in the array for array types, or \c NULL
+ * for non-array types.
+ */
+ const glsl_type *element_type() const
+ {
+ return is_array() ? fields.array : NULL;
+ }
+
+ /**
+ * Get the instance of a built-in scalar, vector, or matrix type
+ */
+ static const glsl_type *get_instance(unsigned base_type, unsigned rows,
+ unsigned columns);
+
+ /**
+ * Get the instance of an array type
+ */
+ static const glsl_type *get_array_instance(const glsl_type *base,
+ unsigned elements);
+
+ /**
+ * Get the instance of a record type
+ */
+ static const glsl_type *get_record_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ const char *name);
+
+ /**
+ * Query the total number of scalars that make up a scalar, vector or matrix
+ */
+ unsigned components() const
+ {
+ return vector_elements * matrix_columns;
+ }
+
+ /**
+ * Calculate the number of components slots required to hold this type
+ *
+ * This is used to determine how many uniform or varying locations a type
+ * might occupy.
+ */
+ unsigned component_slots() const;
+
+
+ /**
+ * Query whether or not a type is a scalar (non-vector and non-matrix).
+ */
+ bool is_scalar() const
+ {
+ return (vector_elements == 1)
+ && (base_type >= GLSL_TYPE_UINT)
+ && (base_type <= GLSL_TYPE_BOOL);
+ }
+
+ /**
+ * Query whether or not a type is a vector
+ */
+ bool is_vector() const
+ {
+ return (vector_elements > 1)
+ && (matrix_columns == 1)
+ && (base_type >= GLSL_TYPE_UINT)
+ && (base_type <= GLSL_TYPE_BOOL);
+ }
+
+ /**
+ * Query whether or not a type is a matrix
+ */
+ bool is_matrix() const
+ {
+ /* GLSL only has float matrices. */
+ return (matrix_columns > 1) && (base_type == GLSL_TYPE_FLOAT);
+ }
+
+ /**
+ * Query whether or not a type is a non-array numeric type
+ */
+ bool is_numeric() const
+ {
+ return (base_type >= GLSL_TYPE_UINT) && (base_type <= GLSL_TYPE_FLOAT);
+ }
+
+ /**
+ * Query whether or not a type is an integral type
+ */
+ bool is_integer() const
+ {
+ return (base_type == GLSL_TYPE_UINT) || (base_type == GLSL_TYPE_INT);
+ }
+
+ /**
+ * Query whether or not a type is a float type
+ */
+ bool is_float() const
+ {
+ return base_type == GLSL_TYPE_FLOAT;
+ }
+
+ /**
+ * Query whether or not a type is a non-array boolean type
+ */
+ bool is_boolean() const
+ {
+ return base_type == GLSL_TYPE_BOOL;
+ }
+
+ /**
+ * Query whether or not a type is a sampler
+ */
+ bool is_sampler() const
+ {
+ return base_type == GLSL_TYPE_SAMPLER;
+ }
+
+ /**
+ * Query whether or not a type is an array
+ */
+ bool is_array() const
+ {
+ return base_type == GLSL_TYPE_ARRAY;
+ }
+
+ /**
+ * Query whether or not a type is a record
+ */
+ bool is_record() const
+ {
+ return base_type == GLSL_TYPE_STRUCT;
+ }
+
+ /**
+ * Query whether or not a type is the void type singleton.
+ */
+ bool is_void() const
+ {
+ return base_type == GLSL_TYPE_VOID;
+ }
+
+ /**
+ * Query whether or not a type is the error type singleton.
+ */
+ bool is_error() const
+ {
+ return base_type == GLSL_TYPE_ERROR;
+ }
+
+ /**
+ * Query the full type of a matrix row
+ *
+ * \return
+ * If the type is not a matrix, \c glsl_type::error_type is returned.
+ * Otherwise a type matching the rows of the matrix is returned.
+ */
+ const glsl_type *row_type() const
+ {
+ return is_matrix()
+ ? get_instance(base_type, matrix_columns, 1)
+ : error_type;
+ }
+
+ /**
+ * Query the full type of a matrix column
+ *
+ * \return
+ * If the type is not a matrix, \c glsl_type::error_type is returned.
+ * Otherwise a type matching the columns of the matrix is returned.
+ */
+ const glsl_type *column_type() const
+ {
+ return is_matrix()
+ ? get_instance(base_type, vector_elements, 1)
+ : error_type;
+ }
+
+
+ /**
+ * Get the type of a structure field
+ *
+ * \return
+ * Pointer to the type of the named field. If the type is not a structure
+ * or the named field does not exist, \c glsl_type::error_type is returned.
+ */
+ const glsl_type *field_type(const char *name) const;
+
+
+ /**
+ * Get the location of a filed within a record type
+ */
+ int field_index(const char *name) const;
+
+
+ /**
+ * Query the number of elements in an array type
+ *
+ * \return
+ * The number of elements in the array for array types or -1 for non-array
+ * types. If the number of elements in the array has not yet been declared,
+ * zero is returned.
+ */
+ int array_size() const
+ {
+ return is_array() ? length : -1;
+ }
+
+private:
+ /**
+ * talloc context for all glsl_type allocations
+ *
+ * Set on the first call to \c glsl_type::new.
+ */
+ static void *mem_ctx;
+
+ void init_talloc_type_ctx(void);
+
+ /** Constructor for vector and matrix types */
+ glsl_type(GLenum gl_type,
+ unsigned base_type, unsigned vector_elements,
+ unsigned matrix_columns, const char *name);
+
+ /** Constructor for sampler types */
+ glsl_type(GLenum gl_type,
+ enum glsl_sampler_dim dim, bool shadow, bool array,
+ unsigned type, const char *name);
+
+ /** Constructor for record types */
+ glsl_type(const glsl_struct_field *fields, unsigned num_fields,
+ const char *name);
+
+ /** Constructor for array types */
+ glsl_type(const glsl_type *array, unsigned length);
+
+ /** Hash table containing the known array types. */
+ static struct hash_table *array_types;
+
+ /** Hash table containing the known record types. */
+ static struct hash_table *record_types;
+
+ static int record_key_compare(const void *a, const void *b);
+ static unsigned record_key_hash(const void *key);
+
+ /**
+ * \name Pointers to various type singletons
+ */
+ /*@{*/
+ static const glsl_type _error_type;
+ static const glsl_type void_type;
+ static const glsl_type builtin_core_types[];
+ static const glsl_type builtin_structure_types[];
+ static const glsl_type builtin_110_deprecated_structure_types[];
+ static const glsl_type builtin_110_types[];
+ static const glsl_type builtin_120_types[];
+ static const glsl_type builtin_130_types[];
+ static const glsl_type builtin_ARB_texture_rectangle_types[];
+ static const glsl_type builtin_EXT_texture_array_types[];
+ static const glsl_type builtin_EXT_texture_buffer_object_types[];
+ /*@}*/
+
+ /**
+ * \name Methods to populate a symbol table with built-in types.
+ *
+ * \internal
+ * This is one of the truely annoying things about C++. Methods that are
+ * completely internal and private to a type still have to be advertised to
+ * the world in a public header file.
+ */
+ /*@{*/
+ static void generate_100ES_types(glsl_symbol_table *);
+ static void generate_110_types(glsl_symbol_table *);
+ static void generate_120_types(glsl_symbol_table *);
+ static void generate_130_types(glsl_symbol_table *);
+ static void generate_ARB_texture_rectangle_types(glsl_symbol_table *, bool);
+ static void generate_EXT_texture_array_types(glsl_symbol_table *, bool);
+ /*@}*/
+
+ /**
+ * \name Friend functions.
+ *
+ * These functions are friends because they must have C linkage and the
+ * need to call various private methods or access various private static
+ * data.
+ */
+ /*@{*/
+ friend void _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *);
+ friend void _mesa_glsl_release_types(void);
+ /*@}*/
+};
+
+struct glsl_struct_field {
+ const struct glsl_type *type;
+ const char *name;
+};
+
+#endif /* GLSL_TYPES_H */
diff --git a/mesalib/src/glsl/hir_field_selection.cpp b/mesalib/src/glsl/hir_field_selection.cpp
new file mode 100644
index 000000000..3c33127b5
--- /dev/null
+++ b/mesalib/src/glsl/hir_field_selection.cpp
@@ -0,0 +1,102 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ir.h"
+#include "program/symbol_table.h"
+#include "glsl_parser_extras.h"
+#include "ast.h"
+#include "glsl_types.h"
+
+ir_rvalue *
+_mesa_ast_field_selection_to_hir(const ast_expression *expr,
+ exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ void *ctx = state;
+ ir_rvalue *result = NULL;
+ ir_rvalue *op;
+
+ op = expr->subexpressions[0]->hir(instructions, state);
+
+ /* There are two kinds of field selection. There is the selection of a
+ * specific field from a structure, and there is the selection of a
+ * swizzle / mask from a vector. Which is which is determined entirely
+ * by the base type of the thing to which the field selection operator is
+ * being applied.
+ */
+ YYLTYPE loc = expr->get_location();
+ if (op->type->is_error()) {
+ /* silently propagate the error */
+ } else if (op->type->is_vector()) {
+ ir_swizzle *swiz = ir_swizzle::create(op,
+ expr->primary_expression.identifier,
+ op->type->vector_elements);
+ if (swiz != NULL) {
+ result = swiz;
+ } else {
+ /* FINISHME: Logging of error messages should be moved into
+ * FINISHME: ir_swizzle::create. This allows the generation of more
+ * FINISHME: specific error messages.
+ */
+ _mesa_glsl_error(& loc, state, "Invalid swizzle / mask `%s'",
+ expr->primary_expression.identifier);
+ }
+ } else if (op->type->base_type == GLSL_TYPE_STRUCT) {
+ result = new(ctx) ir_dereference_record(op,
+ expr->primary_expression.identifier);
+
+ if (result->type->is_error()) {
+ _mesa_glsl_error(& loc, state, "Cannot access field `%s' of "
+ "structure",
+ expr->primary_expression.identifier);
+ }
+ } else if (expr->subexpressions[1] != NULL) {
+ /* Handle "method calls" in GLSL 1.20 - namely, array.length() */
+ if (state->language_version < 120)
+ _mesa_glsl_error(&loc, state, "Methods not supported in GLSL 1.10.");
+
+ ast_expression *call = expr->subexpressions[1];
+ assert(call->oper == ast_function_call);
+
+ const char *method;
+ method = call->subexpressions[0]->primary_expression.identifier;
+
+ if (op->type->is_array() && strcmp(method, "length") == 0) {
+ if (!call->expressions.is_empty())
+ _mesa_glsl_error(&loc, state, "length method takes no arguments.");
+
+ if (op->type->array_size() == 0)
+ _mesa_glsl_error(&loc, state, "length called on unsized array.");
+
+ result = new(ctx) ir_constant(op->type->array_size());
+ } else {
+ _mesa_glsl_error(&loc, state, "Unknown method: `%s'.", method);
+ }
+ } else {
+ _mesa_glsl_error(& loc, state, "Cannot access field `%s' of "
+ "non-structure / non-vector.",
+ expr->primary_expression.identifier);
+ }
+
+ return result ? result : ir_call::get_error_instruction(ctx);
+}
diff --git a/mesalib/src/glsl/ir.cpp b/mesalib/src/glsl/ir.cpp
new file mode 100644
index 000000000..5e2109ecc
--- /dev/null
+++ b/mesalib/src/glsl/ir.cpp
@@ -0,0 +1,1238 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <string.h>
+#include "main/core.h" /* for MAX2 */
+#include "ir.h"
+#include "ir_visitor.h"
+#include "glsl_types.h"
+
+ir_rvalue::ir_rvalue()
+{
+ this->type = glsl_type::error_type;
+}
+
+/**
+ * Modify the swizzle make to move one component to another
+ *
+ * \param m IR swizzle to be modified
+ * \param from Component in the RHS that is to be swizzled
+ * \param to Desired swizzle location of \c from
+ */
+static void
+update_rhs_swizzle(ir_swizzle_mask &m, unsigned from, unsigned to)
+{
+ switch (to) {
+ case 0: m.x = from; break;
+ case 1: m.y = from; break;
+ case 2: m.z = from; break;
+ case 3: m.w = from; break;
+ default: assert(!"Should not get here.");
+ }
+
+ m.num_components = MAX2(m.num_components, (to + 1));
+}
+
+void
+ir_assignment::set_lhs(ir_rvalue *lhs)
+{
+ void *mem_ctx = this;
+ bool swizzled = false;
+
+ while (lhs != NULL) {
+ ir_swizzle *swiz = lhs->as_swizzle();
+
+ if (swiz == NULL)
+ break;
+
+ unsigned write_mask = 0;
+ ir_swizzle_mask rhs_swiz = { 0, 0, 0, 0, 0, 0 };
+
+ for (unsigned i = 0; i < swiz->mask.num_components; i++) {
+ unsigned c = 0;
+
+ switch (i) {
+ case 0: c = swiz->mask.x; break;
+ case 1: c = swiz->mask.y; break;
+ case 2: c = swiz->mask.z; break;
+ case 3: c = swiz->mask.w; break;
+ default: assert(!"Should not get here.");
+ }
+
+ write_mask |= (((this->write_mask >> i) & 1) << c);
+ update_rhs_swizzle(rhs_swiz, i, c);
+ }
+
+ this->write_mask = write_mask;
+ lhs = swiz->val;
+
+ this->rhs = new(mem_ctx) ir_swizzle(this->rhs, rhs_swiz);
+ swizzled = true;
+ }
+
+ if (swizzled) {
+ /* Now, RHS channels line up with the LHS writemask. Collapse it
+ * to just the channels that will be written.
+ */
+ ir_swizzle_mask rhs_swiz = { 0, 0, 0, 0, 0, 0 };
+ int rhs_chan = 0;
+ for (int i = 0; i < 4; i++) {
+ if (write_mask & (1 << i))
+ update_rhs_swizzle(rhs_swiz, i, rhs_chan++);
+ }
+ this->rhs = new(mem_ctx) ir_swizzle(this->rhs, rhs_swiz);
+ }
+
+ assert((lhs == NULL) || lhs->as_dereference());
+
+ this->lhs = (ir_dereference *) lhs;
+}
+
+ir_variable *
+ir_assignment::whole_variable_written()
+{
+ ir_variable *v = this->lhs->whole_variable_referenced();
+
+ if (v == NULL)
+ return NULL;
+
+ if (v->type->is_scalar())
+ return v;
+
+ if (v->type->is_vector()) {
+ const unsigned mask = (1U << v->type->vector_elements) - 1;
+
+ if (mask != this->write_mask)
+ return NULL;
+ }
+
+ /* Either all the vector components are assigned or the variable is some
+ * composite type (and the whole thing is assigned.
+ */
+ return v;
+}
+
+ir_assignment::ir_assignment(ir_dereference *lhs, ir_rvalue *rhs,
+ ir_rvalue *condition, unsigned write_mask)
+{
+ this->ir_type = ir_type_assignment;
+ this->condition = condition;
+ this->rhs = rhs;
+ this->lhs = lhs;
+ this->write_mask = write_mask;
+
+ if (lhs->type->is_scalar() || lhs->type->is_vector()) {
+ int lhs_components = 0;
+ for (int i = 0; i < 4; i++) {
+ if (write_mask & (1 << i))
+ lhs_components++;
+ }
+
+ assert(lhs_components == this->rhs->type->vector_elements);
+ }
+}
+
+ir_assignment::ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs,
+ ir_rvalue *condition)
+{
+ this->ir_type = ir_type_assignment;
+ this->condition = condition;
+ this->rhs = rhs;
+
+ /* If the RHS is a vector type, assume that all components of the vector
+ * type are being written to the LHS. The write mask comes from the RHS
+ * because we can have a case where the LHS is a vec4 and the RHS is a
+ * vec3. In that case, the assignment is:
+ *
+ * (assign (...) (xyz) (var_ref lhs) (var_ref rhs))
+ */
+ if (rhs->type->is_vector())
+ this->write_mask = (1U << rhs->type->vector_elements) - 1;
+ else if (rhs->type->is_scalar())
+ this->write_mask = 1;
+ else
+ this->write_mask = 0;
+
+ this->set_lhs(lhs);
+}
+
+
+ir_expression::ir_expression(int op, const struct glsl_type *type,
+ ir_rvalue *op0, ir_rvalue *op1)
+{
+ this->ir_type = ir_type_expression;
+ this->type = type;
+ this->operation = ir_expression_operation(op);
+ this->operands[0] = op0;
+ this->operands[1] = op1;
+}
+
+unsigned int
+ir_expression::get_num_operands(ir_expression_operation op)
+{
+/* Update ir_print_visitor.cpp when updating this list. */
+ const int num_operands[] = {
+ 1, /* ir_unop_bit_not */
+ 1, /* ir_unop_logic_not */
+ 1, /* ir_unop_neg */
+ 1, /* ir_unop_abs */
+ 1, /* ir_unop_sign */
+ 1, /* ir_unop_rcp */
+ 1, /* ir_unop_rsq */
+ 1, /* ir_unop_sqrt */
+ 1, /* ir_unop_exp */
+ 1, /* ir_unop_log */
+ 1, /* ir_unop_exp2 */
+ 1, /* ir_unop_log2 */
+ 1, /* ir_unop_f2i */
+ 1, /* ir_unop_i2f */
+ 1, /* ir_unop_f2b */
+ 1, /* ir_unop_b2f */
+ 1, /* ir_unop_i2b */
+ 1, /* ir_unop_b2i */
+ 1, /* ir_unop_u2f */
+ 1, /* ir_unop_any */
+
+ 1, /* ir_unop_trunc */
+ 1, /* ir_unop_ceil */
+ 1, /* ir_unop_floor */
+ 1, /* ir_unop_fract */
+
+ 1, /* ir_unop_sin */
+ 1, /* ir_unop_cos */
+
+ 1, /* ir_unop_dFdx */
+ 1, /* ir_unop_dFdy */
+
+ 1, /* ir_unop_noise */
+
+ 2, /* ir_binop_add */
+ 2, /* ir_binop_sub */
+ 2, /* ir_binop_mul */
+ 2, /* ir_binop_div */
+ 2, /* ir_binop_mod */
+
+ 2, /* ir_binop_less */
+ 2, /* ir_binop_greater */
+ 2, /* ir_binop_lequal */
+ 2, /* ir_binop_gequal */
+ 2, /* ir_binop_equal */
+ 2, /* ir_binop_nequal */
+ 2, /* ir_binop_all_equal */
+ 2, /* ir_binop_any_nequal */
+
+ 2, /* ir_binop_lshift */
+ 2, /* ir_binop_rshift */
+ 2, /* ir_binop_bit_and */
+ 2, /* ir_binop_bit_xor */
+ 2, /* ir_binop_bit_or */
+
+ 2, /* ir_binop_logic_and */
+ 2, /* ir_binop_logic_xor */
+ 2, /* ir_binop_logic_or */
+
+ 2, /* ir_binop_dot */
+ 2, /* ir_binop_cross */
+ 2, /* ir_binop_min */
+ 2, /* ir_binop_max */
+
+ 2, /* ir_binop_pow */
+ };
+
+ assert(sizeof(num_operands) / sizeof(num_operands[0]) == ir_binop_pow + 1);
+
+ return num_operands[op];
+}
+
+static const char *const operator_strs[] = {
+ "~",
+ "!",
+ "neg",
+ "abs",
+ "sign",
+ "rcp",
+ "rsq",
+ "sqrt",
+ "exp",
+ "log",
+ "exp2",
+ "log2",
+ "f2i",
+ "i2f",
+ "f2b",
+ "b2f",
+ "i2b",
+ "b2i",
+ "u2f",
+ "any",
+ "trunc",
+ "ceil",
+ "floor",
+ "fract",
+ "sin",
+ "cos",
+ "dFdx",
+ "dFdy",
+ "noise",
+ "+",
+ "-",
+ "*",
+ "/",
+ "%",
+ "<",
+ ">",
+ "<=",
+ ">=",
+ "==",
+ "!=",
+ "all_equal",
+ "any_nequal",
+ "<<",
+ ">>",
+ "&",
+ "^",
+ "|",
+ "&&",
+ "^^",
+ "||",
+ "dot",
+ "cross",
+ "min",
+ "max",
+ "pow",
+};
+
+const char *ir_expression::operator_string(ir_expression_operation op)
+{
+ assert((unsigned int) op < Elements(operator_strs));
+ assert(Elements(operator_strs) == (ir_binop_pow + 1));
+ return operator_strs[op];
+}
+
+const char *ir_expression::operator_string()
+{
+ return operator_string(this->operation);
+}
+
+ir_expression_operation
+ir_expression::get_operator(const char *str)
+{
+ const int operator_count = sizeof(operator_strs) / sizeof(operator_strs[0]);
+ for (int op = 0; op < operator_count; op++) {
+ if (strcmp(str, operator_strs[op]) == 0)
+ return (ir_expression_operation) op;
+ }
+ return (ir_expression_operation) -1;
+}
+
+ir_constant::ir_constant()
+{
+ this->ir_type = ir_type_constant;
+}
+
+ir_constant::ir_constant(const struct glsl_type *type,
+ const ir_constant_data *data)
+{
+ assert((type->base_type >= GLSL_TYPE_UINT)
+ && (type->base_type <= GLSL_TYPE_BOOL));
+
+ this->ir_type = ir_type_constant;
+ this->type = type;
+ memcpy(& this->value, data, sizeof(this->value));
+}
+
+ir_constant::ir_constant(float f)
+{
+ this->ir_type = ir_type_constant;
+ this->type = glsl_type::float_type;
+ this->value.f[0] = f;
+ for (int i = 1; i < 16; i++) {
+ this->value.f[i] = 0;
+ }
+}
+
+ir_constant::ir_constant(unsigned int u)
+{
+ this->ir_type = ir_type_constant;
+ this->type = glsl_type::uint_type;
+ this->value.u[0] = u;
+ for (int i = 1; i < 16; i++) {
+ this->value.u[i] = 0;
+ }
+}
+
+ir_constant::ir_constant(int i)
+{
+ this->ir_type = ir_type_constant;
+ this->type = glsl_type::int_type;
+ this->value.i[0] = i;
+ for (int i = 1; i < 16; i++) {
+ this->value.i[i] = 0;
+ }
+}
+
+ir_constant::ir_constant(bool b)
+{
+ this->ir_type = ir_type_constant;
+ this->type = glsl_type::bool_type;
+ this->value.b[0] = b;
+ for (int i = 1; i < 16; i++) {
+ this->value.b[i] = false;
+ }
+}
+
+ir_constant::ir_constant(const ir_constant *c, unsigned i)
+{
+ this->ir_type = ir_type_constant;
+ this->type = c->type->get_base_type();
+
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT: this->value.u[0] = c->value.u[i]; break;
+ case GLSL_TYPE_INT: this->value.i[0] = c->value.i[i]; break;
+ case GLSL_TYPE_FLOAT: this->value.f[0] = c->value.f[i]; break;
+ case GLSL_TYPE_BOOL: this->value.b[0] = c->value.b[i]; break;
+ default: assert(!"Should not get here."); break;
+ }
+}
+
+ir_constant::ir_constant(const struct glsl_type *type, exec_list *value_list)
+{
+ this->ir_type = ir_type_constant;
+ this->type = type;
+
+ assert(type->is_scalar() || type->is_vector() || type->is_matrix()
+ || type->is_record() || type->is_array());
+
+ if (type->is_array()) {
+ this->array_elements = talloc_array(this, ir_constant *, type->length);
+ unsigned i = 0;
+ foreach_list(node, value_list) {
+ ir_constant *value = (ir_constant *) node;
+ assert(value->as_constant() != NULL);
+
+ this->array_elements[i++] = value;
+ }
+ return;
+ }
+
+ /* If the constant is a record, the types of each of the entries in
+ * value_list must be a 1-for-1 match with the structure components. Each
+ * entry must also be a constant. Just move the nodes from the value_list
+ * to the list in the ir_constant.
+ */
+ /* FINISHME: Should there be some type checking and / or assertions here? */
+ /* FINISHME: Should the new constant take ownership of the nodes from
+ * FINISHME: value_list, or should it make copies?
+ */
+ if (type->is_record()) {
+ value_list->move_nodes_to(& this->components);
+ return;
+ }
+
+ for (unsigned i = 0; i < 16; i++) {
+ this->value.u[i] = 0;
+ }
+
+ ir_constant *value = (ir_constant *) (value_list->head);
+
+ /* Constructors with exactly one scalar argument are special for vectors
+ * and matrices. For vectors, the scalar value is replicated to fill all
+ * the components. For matrices, the scalar fills the components of the
+ * diagonal while the rest is filled with 0.
+ */
+ if (value->type->is_scalar() && value->next->is_tail_sentinel()) {
+ if (type->is_matrix()) {
+ /* Matrix - fill diagonal (rest is already set to 0) */
+ assert(type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned i = 0; i < type->matrix_columns; i++)
+ this->value.f[i * type->vector_elements + i] = value->value.f[0];
+ } else {
+ /* Vector or scalar - fill all components */
+ switch (type->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ for (unsigned i = 0; i < type->components(); i++)
+ this->value.u[i] = value->value.u[0];
+ break;
+ case GLSL_TYPE_FLOAT:
+ for (unsigned i = 0; i < type->components(); i++)
+ this->value.f[i] = value->value.f[0];
+ break;
+ case GLSL_TYPE_BOOL:
+ for (unsigned i = 0; i < type->components(); i++)
+ this->value.b[i] = value->value.b[0];
+ break;
+ default:
+ assert(!"Should not get here.");
+ break;
+ }
+ }
+ return;
+ }
+
+ if (type->is_matrix() && value->type->is_matrix()) {
+ assert(value->next->is_tail_sentinel());
+
+ /* From section 5.4.2 of the GLSL 1.20 spec:
+ * "If a matrix is constructed from a matrix, then each component
+ * (column i, row j) in the result that has a corresponding component
+ * (column i, row j) in the argument will be initialized from there."
+ */
+ unsigned cols = MIN2(type->matrix_columns, value->type->matrix_columns);
+ unsigned rows = MIN2(type->vector_elements, value->type->vector_elements);
+ for (unsigned i = 0; i < cols; i++) {
+ for (unsigned j = 0; j < rows; j++) {
+ const unsigned src = i * value->type->vector_elements + j;
+ const unsigned dst = i * type->vector_elements + j;
+ this->value.f[dst] = value->value.f[src];
+ }
+ }
+
+ /* "All other components will be initialized to the identity matrix." */
+ for (unsigned i = cols; i < type->matrix_columns; i++)
+ this->value.f[i * type->vector_elements + i] = 1.0;
+
+ return;
+ }
+
+ /* Use each component from each entry in the value_list to initialize one
+ * component of the constant being constructed.
+ */
+ for (unsigned i = 0; i < type->components(); /* empty */) {
+ assert(value->as_constant() != NULL);
+ assert(!value->is_tail_sentinel());
+
+ for (unsigned j = 0; j < value->type->components(); j++) {
+ switch (type->base_type) {
+ case GLSL_TYPE_UINT:
+ this->value.u[i] = value->get_uint_component(j);
+ break;
+ case GLSL_TYPE_INT:
+ this->value.i[i] = value->get_int_component(j);
+ break;
+ case GLSL_TYPE_FLOAT:
+ this->value.f[i] = value->get_float_component(j);
+ break;
+ case GLSL_TYPE_BOOL:
+ this->value.b[i] = value->get_bool_component(j);
+ break;
+ default:
+ /* FINISHME: What to do? Exceptions are not the answer.
+ */
+ break;
+ }
+
+ i++;
+ if (i >= type->components())
+ break;
+ }
+
+ value = (ir_constant *) value->next;
+ }
+}
+
+ir_constant *
+ir_constant::zero(void *mem_ctx, const glsl_type *type)
+{
+ assert(type->is_numeric() || type->is_boolean());
+
+ ir_constant *c = new(mem_ctx) ir_constant;
+ c->type = type;
+ memset(&c->value, 0, sizeof(c->value));
+
+ return c;
+}
+
+bool
+ir_constant::get_bool_component(unsigned i) const
+{
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT: return this->value.u[i] != 0;
+ case GLSL_TYPE_INT: return this->value.i[i] != 0;
+ case GLSL_TYPE_FLOAT: return ((int)this->value.f[i]) != 0;
+ case GLSL_TYPE_BOOL: return this->value.b[i];
+ default: assert(!"Should not get here."); break;
+ }
+
+ /* Must return something to make the compiler happy. This is clearly an
+ * error case.
+ */
+ return false;
+}
+
+float
+ir_constant::get_float_component(unsigned i) const
+{
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT: return (float) this->value.u[i];
+ case GLSL_TYPE_INT: return (float) this->value.i[i];
+ case GLSL_TYPE_FLOAT: return this->value.f[i];
+ case GLSL_TYPE_BOOL: return this->value.b[i] ? 1.0 : 0.0;
+ default: assert(!"Should not get here."); break;
+ }
+
+ /* Must return something to make the compiler happy. This is clearly an
+ * error case.
+ */
+ return 0.0;
+}
+
+int
+ir_constant::get_int_component(unsigned i) const
+{
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT: return this->value.u[i];
+ case GLSL_TYPE_INT: return this->value.i[i];
+ case GLSL_TYPE_FLOAT: return (int) this->value.f[i];
+ case GLSL_TYPE_BOOL: return this->value.b[i] ? 1 : 0;
+ default: assert(!"Should not get here."); break;
+ }
+
+ /* Must return something to make the compiler happy. This is clearly an
+ * error case.
+ */
+ return 0;
+}
+
+unsigned
+ir_constant::get_uint_component(unsigned i) const
+{
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT: return this->value.u[i];
+ case GLSL_TYPE_INT: return this->value.i[i];
+ case GLSL_TYPE_FLOAT: return (unsigned) this->value.f[i];
+ case GLSL_TYPE_BOOL: return this->value.b[i] ? 1 : 0;
+ default: assert(!"Should not get here."); break;
+ }
+
+ /* Must return something to make the compiler happy. This is clearly an
+ * error case.
+ */
+ return 0;
+}
+
+ir_constant *
+ir_constant::get_array_element(unsigned i) const
+{
+ assert(this->type->is_array());
+
+ /* From page 35 (page 41 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "Behavior is undefined if a shader subscripts an array with an index
+ * less than 0 or greater than or equal to the size the array was
+ * declared with."
+ *
+ * Most out-of-bounds accesses are removed before things could get this far.
+ * There are cases where non-constant array index values can get constant
+ * folded.
+ */
+ if (int(i) < 0)
+ i = 0;
+ else if (i >= this->type->length)
+ i = this->type->length - 1;
+
+ return array_elements[i];
+}
+
+ir_constant *
+ir_constant::get_record_field(const char *name)
+{
+ int idx = this->type->field_index(name);
+
+ if (idx < 0)
+ return NULL;
+
+ if (this->components.is_empty())
+ return NULL;
+
+ exec_node *node = this->components.head;
+ for (int i = 0; i < idx; i++) {
+ node = node->next;
+
+ /* If the end of the list is encountered before the element matching the
+ * requested field is found, return NULL.
+ */
+ if (node->is_tail_sentinel())
+ return NULL;
+ }
+
+ return (ir_constant *) node;
+}
+
+
+bool
+ir_constant::has_value(const ir_constant *c) const
+{
+ if (this->type != c->type)
+ return false;
+
+ if (this->type->is_array()) {
+ for (unsigned i = 0; i < this->type->length; i++) {
+ if (this->array_elements[i]->has_value(c->array_elements[i]))
+ return false;
+ }
+ return true;
+ }
+
+ if (this->type->base_type == GLSL_TYPE_STRUCT) {
+ const exec_node *a_node = this->components.head;
+ const exec_node *b_node = c->components.head;
+
+ while (!a_node->is_tail_sentinel()) {
+ assert(!b_node->is_tail_sentinel());
+
+ const ir_constant *const a_field = (ir_constant *) a_node;
+ const ir_constant *const b_field = (ir_constant *) b_node;
+
+ if (!a_field->has_value(b_field))
+ return false;
+
+ a_node = a_node->next;
+ b_node = b_node->next;
+ }
+
+ return true;
+ }
+
+ for (unsigned i = 0; i < this->type->components(); i++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ if (this->value.u[i] != c->value.u[i])
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (this->value.i[i] != c->value.i[i])
+ return false;
+ break;
+ case GLSL_TYPE_FLOAT:
+ if (this->value.f[i] != c->value.f[i])
+ return false;
+ break;
+ case GLSL_TYPE_BOOL:
+ if (this->value.b[i] != c->value.b[i])
+ return false;
+ break;
+ default:
+ assert(!"Should not get here.");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+
+ir_loop::ir_loop()
+{
+ this->ir_type = ir_type_loop;
+ this->cmp = ir_unop_neg;
+ this->from = NULL;
+ this->to = NULL;
+ this->increment = NULL;
+ this->counter = NULL;
+}
+
+
+ir_dereference_variable::ir_dereference_variable(ir_variable *var)
+{
+ this->ir_type = ir_type_dereference_variable;
+ this->var = var;
+ this->type = (var != NULL) ? var->type : glsl_type::error_type;
+}
+
+
+ir_dereference_array::ir_dereference_array(ir_rvalue *value,
+ ir_rvalue *array_index)
+{
+ this->ir_type = ir_type_dereference_array;
+ this->array_index = array_index;
+ this->set_array(value);
+}
+
+
+ir_dereference_array::ir_dereference_array(ir_variable *var,
+ ir_rvalue *array_index)
+{
+ void *ctx = talloc_parent(var);
+
+ this->ir_type = ir_type_dereference_array;
+ this->array_index = array_index;
+ this->set_array(new(ctx) ir_dereference_variable(var));
+}
+
+
+void
+ir_dereference_array::set_array(ir_rvalue *value)
+{
+ this->array = value;
+ this->type = glsl_type::error_type;
+
+ if (this->array != NULL) {
+ const glsl_type *const vt = this->array->type;
+
+ if (vt->is_array()) {
+ type = vt->element_type();
+ } else if (vt->is_matrix()) {
+ type = vt->column_type();
+ } else if (vt->is_vector()) {
+ type = vt->get_base_type();
+ }
+ }
+}
+
+
+ir_dereference_record::ir_dereference_record(ir_rvalue *value,
+ const char *field)
+{
+ this->ir_type = ir_type_dereference_record;
+ this->record = value;
+ this->field = talloc_strdup(this, field);
+ this->type = (this->record != NULL)
+ ? this->record->type->field_type(field) : glsl_type::error_type;
+}
+
+
+ir_dereference_record::ir_dereference_record(ir_variable *var,
+ const char *field)
+{
+ void *ctx = talloc_parent(var);
+
+ this->ir_type = ir_type_dereference_record;
+ this->record = new(ctx) ir_dereference_variable(var);
+ this->field = talloc_strdup(this, field);
+ this->type = (this->record != NULL)
+ ? this->record->type->field_type(field) : glsl_type::error_type;
+}
+
+bool type_contains_sampler(const glsl_type *type)
+{
+ if (type->is_array()) {
+ return type_contains_sampler(type->fields.array);
+ } else if (type->is_record()) {
+ for (unsigned int i = 0; i < type->length; i++) {
+ if (type_contains_sampler(type->fields.structure[i].type))
+ return true;
+ }
+ return false;
+ } else {
+ return type->is_sampler();
+ }
+}
+
+bool
+ir_dereference::is_lvalue()
+{
+ ir_variable *var = this->variable_referenced();
+
+ /* Every l-value derference chain eventually ends in a variable.
+ */
+ if ((var == NULL) || var->read_only)
+ return false;
+
+ if (this->type->is_array() && !var->array_lvalue)
+ return false;
+
+ /* From page 17 (page 23 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "Samplers cannot be treated as l-values; hence cannot be used
+ * as out or inout function parameters, nor can they be
+ * assigned into."
+ */
+ if (type_contains_sampler(this->type))
+ return false;
+
+ return true;
+}
+
+
+const char *tex_opcode_strs[] = { "tex", "txb", "txl", "txd", "txf" };
+
+const char *ir_texture::opcode_string()
+{
+ assert((unsigned int) op <=
+ sizeof(tex_opcode_strs) / sizeof(tex_opcode_strs[0]));
+ return tex_opcode_strs[op];
+}
+
+ir_texture_opcode
+ir_texture::get_opcode(const char *str)
+{
+ const int count = sizeof(tex_opcode_strs) / sizeof(tex_opcode_strs[0]);
+ for (int op = 0; op < count; op++) {
+ if (strcmp(str, tex_opcode_strs[op]) == 0)
+ return (ir_texture_opcode) op;
+ }
+ return (ir_texture_opcode) -1;
+}
+
+
+void
+ir_texture::set_sampler(ir_dereference *sampler)
+{
+ assert(sampler != NULL);
+ this->sampler = sampler;
+
+ switch (sampler->type->sampler_type) {
+ case GLSL_TYPE_FLOAT:
+ this->type = glsl_type::vec4_type;
+ break;
+ case GLSL_TYPE_INT:
+ this->type = glsl_type::ivec4_type;
+ break;
+ case GLSL_TYPE_UINT:
+ this->type = glsl_type::uvec4_type;
+ break;
+ }
+}
+
+
+void
+ir_swizzle::init_mask(const unsigned *comp, unsigned count)
+{
+ assert((count >= 1) && (count <= 4));
+
+ memset(&this->mask, 0, sizeof(this->mask));
+ this->mask.num_components = count;
+
+ unsigned dup_mask = 0;
+ switch (count) {
+ case 4:
+ assert(comp[3] <= 3);
+ dup_mask |= (1U << comp[3])
+ & ((1U << comp[0]) | (1U << comp[1]) | (1U << comp[2]));
+ this->mask.w = comp[3];
+
+ case 3:
+ assert(comp[2] <= 3);
+ dup_mask |= (1U << comp[2])
+ & ((1U << comp[0]) | (1U << comp[1]));
+ this->mask.z = comp[2];
+
+ case 2:
+ assert(comp[1] <= 3);
+ dup_mask |= (1U << comp[1])
+ & ((1U << comp[0]));
+ this->mask.y = comp[1];
+
+ case 1:
+ assert(comp[0] <= 3);
+ this->mask.x = comp[0];
+ }
+
+ this->mask.has_duplicates = dup_mask != 0;
+
+ /* Based on the number of elements in the swizzle and the base type
+ * (i.e., float, int, unsigned, or bool) of the vector being swizzled,
+ * generate the type of the resulting value.
+ */
+ type = glsl_type::get_instance(val->type->base_type, mask.num_components, 1);
+}
+
+ir_swizzle::ir_swizzle(ir_rvalue *val, unsigned x, unsigned y, unsigned z,
+ unsigned w, unsigned count)
+ : val(val)
+{
+ const unsigned components[4] = { x, y, z, w };
+ this->ir_type = ir_type_swizzle;
+ this->init_mask(components, count);
+}
+
+ir_swizzle::ir_swizzle(ir_rvalue *val, const unsigned *comp,
+ unsigned count)
+ : val(val)
+{
+ this->ir_type = ir_type_swizzle;
+ this->init_mask(comp, count);
+}
+
+ir_swizzle::ir_swizzle(ir_rvalue *val, ir_swizzle_mask mask)
+{
+ this->ir_type = ir_type_swizzle;
+ this->val = val;
+ this->mask = mask;
+ this->type = glsl_type::get_instance(val->type->base_type,
+ mask.num_components, 1);
+}
+
+#define X 1
+#define R 5
+#define S 9
+#define I 13
+
+ir_swizzle *
+ir_swizzle::create(ir_rvalue *val, const char *str, unsigned vector_length)
+{
+ void *ctx = talloc_parent(val);
+
+ /* For each possible swizzle character, this table encodes the value in
+ * \c idx_map that represents the 0th element of the vector. For invalid
+ * swizzle characters (e.g., 'k'), a special value is used that will allow
+ * detection of errors.
+ */
+ static const unsigned char base_idx[26] = {
+ /* a b c d e f g h i j k l m */
+ R, R, I, I, I, I, R, I, I, I, I, I, I,
+ /* n o p q r s t u v w x y z */
+ I, I, S, S, R, S, S, I, I, X, X, X, X
+ };
+
+ /* Each valid swizzle character has an entry in the previous table. This
+ * table encodes the base index encoded in the previous table plus the actual
+ * index of the swizzle character. When processing swizzles, the first
+ * character in the string is indexed in the previous table. Each character
+ * in the string is indexed in this table, and the value found there has the
+ * value form the first table subtracted. The result must be on the range
+ * [0,3].
+ *
+ * For example, the string "wzyx" will get X from the first table. Each of
+ * the charcaters will get X+3, X+2, X+1, and X+0 from this table. After
+ * subtraction, the swizzle values are { 3, 2, 1, 0 }.
+ *
+ * The string "wzrg" will get X from the first table. Each of the characters
+ * will get X+3, X+2, R+0, and R+1 from this table. After subtraction, the
+ * swizzle values are { 3, 2, 4, 5 }. Since 4 and 5 are outside the range
+ * [0,3], the error is detected.
+ */
+ static const unsigned char idx_map[26] = {
+ /* a b c d e f g h i j k l m */
+ R+3, R+2, 0, 0, 0, 0, R+1, 0, 0, 0, 0, 0, 0,
+ /* n o p q r s t u v w x y z */
+ 0, 0, S+2, S+3, R+0, S+0, S+1, 0, 0, X+3, X+0, X+1, X+2
+ };
+
+ int swiz_idx[4] = { 0, 0, 0, 0 };
+ unsigned i;
+
+
+ /* Validate the first character in the swizzle string and look up the base
+ * index value as described above.
+ */
+ if ((str[0] < 'a') || (str[0] > 'z'))
+ return NULL;
+
+ const unsigned base = base_idx[str[0] - 'a'];
+
+
+ for (i = 0; (i < 4) && (str[i] != '\0'); i++) {
+ /* Validate the next character, and, as described above, convert it to a
+ * swizzle index.
+ */
+ if ((str[i] < 'a') || (str[i] > 'z'))
+ return NULL;
+
+ swiz_idx[i] = idx_map[str[i] - 'a'] - base;
+ if ((swiz_idx[i] < 0) || (swiz_idx[i] >= (int) vector_length))
+ return NULL;
+ }
+
+ if (str[i] != '\0')
+ return NULL;
+
+ return new(ctx) ir_swizzle(val, swiz_idx[0], swiz_idx[1], swiz_idx[2],
+ swiz_idx[3], i);
+}
+
+#undef X
+#undef R
+#undef S
+#undef I
+
+ir_variable *
+ir_swizzle::variable_referenced()
+{
+ return this->val->variable_referenced();
+}
+
+
+ir_variable::ir_variable(const struct glsl_type *type, const char *name,
+ ir_variable_mode mode)
+ : max_array_access(0), read_only(false), centroid(false), invariant(false),
+ mode(mode), interpolation(ir_var_smooth), array_lvalue(false)
+{
+ this->ir_type = ir_type_variable;
+ this->type = type;
+ this->name = talloc_strdup(this, name);
+ this->location = -1;
+ this->warn_extension = NULL;
+ this->constant_value = NULL;
+ this->origin_upper_left = false;
+ this->pixel_center_integer = false;
+
+ if (type && type->base_type == GLSL_TYPE_SAMPLER)
+ this->read_only = true;
+}
+
+
+const char *
+ir_variable::interpolation_string() const
+{
+ switch (this->interpolation) {
+ case ir_var_smooth: return "smooth";
+ case ir_var_flat: return "flat";
+ case ir_var_noperspective: return "noperspective";
+ }
+
+ assert(!"Should not get here.");
+ return "";
+}
+
+
+unsigned
+ir_variable::component_slots() const
+{
+ /* FINISHME: Sparsely accessed arrays require fewer slots. */
+ return this->type->component_slots();
+}
+
+
+ir_function_signature::ir_function_signature(const glsl_type *return_type)
+ : return_type(return_type), is_defined(false), _function(NULL)
+{
+ this->ir_type = ir_type_function_signature;
+ this->is_builtin = false;
+}
+
+
+const char *
+ir_function_signature::qualifiers_match(exec_list *params)
+{
+ exec_list_iterator iter_a = parameters.iterator();
+ exec_list_iterator iter_b = params->iterator();
+
+ /* check that the qualifiers match. */
+ while (iter_a.has_next()) {
+ ir_variable *a = (ir_variable *)iter_a.get();
+ ir_variable *b = (ir_variable *)iter_b.get();
+
+ if (a->read_only != b->read_only ||
+ a->mode != b->mode ||
+ a->interpolation != b->interpolation ||
+ a->centroid != b->centroid) {
+
+ /* parameter a's qualifiers don't match */
+ return a->name;
+ }
+
+ iter_a.next();
+ iter_b.next();
+ }
+ return NULL;
+}
+
+
+void
+ir_function_signature::replace_parameters(exec_list *new_params)
+{
+ /* Destroy all of the previous parameter information. If the previous
+ * parameter information comes from the function prototype, it may either
+ * specify incorrect parameter names or not have names at all.
+ */
+ foreach_iter(exec_list_iterator, iter, parameters) {
+ assert(((ir_instruction *) iter.get())->as_variable() != NULL);
+
+ iter.remove();
+ }
+
+ new_params->move_nodes_to(&parameters);
+}
+
+
+ir_function::ir_function(const char *name)
+{
+ this->ir_type = ir_type_function;
+ this->name = talloc_strdup(this, name);
+}
+
+
+bool
+ir_function::has_user_signature()
+{
+ foreach_list(n, &this->signatures) {
+ ir_function_signature *const sig = (ir_function_signature *) n;
+ if (!sig->is_builtin)
+ return true;
+ }
+ return false;
+}
+
+
+ir_call *
+ir_call::get_error_instruction(void *ctx)
+{
+ ir_call *call = new(ctx) ir_call;
+
+ call->type = glsl_type::error_type;
+ return call;
+}
+
+void
+ir_call::set_callee(ir_function_signature *sig)
+{
+ assert((this->type == NULL) || (this->type == sig->return_type));
+
+ this->callee = sig;
+}
+
+void
+visit_exec_list(exec_list *list, ir_visitor *visitor)
+{
+ foreach_iter(exec_list_iterator, iter, *list) {
+ ((ir_instruction *)iter.get())->accept(visitor);
+ }
+}
+
+
+static void
+steal_memory(ir_instruction *ir, void *new_ctx)
+{
+ ir_variable *var = ir->as_variable();
+ ir_constant *constant = ir->as_constant();
+ if (var != NULL && var->constant_value != NULL)
+ steal_memory(var->constant_value, ir);
+
+ /* The components of aggregate constants are not visited by the normal
+ * visitor, so steal their values by hand.
+ */
+ if (constant != NULL) {
+ if (constant->type->is_record()) {
+ foreach_iter(exec_list_iterator, iter, constant->components) {
+ ir_constant *field = (ir_constant *)iter.get();
+ steal_memory(field, ir);
+ }
+ } else if (constant->type->is_array()) {
+ for (unsigned int i = 0; i < constant->type->length; i++) {
+ steal_memory(constant->array_elements[i], ir);
+ }
+ }
+ }
+
+ talloc_steal(new_ctx, ir);
+}
+
+
+void
+reparent_ir(exec_list *list, void *mem_ctx)
+{
+ foreach_list(node, list) {
+ visit_tree((ir_instruction *) node, steal_memory, mem_ctx);
+ }
+}
diff --git a/mesalib/src/glsl/ir.h b/mesalib/src/glsl/ir.h
new file mode 100644
index 000000000..fa246b5e5
--- /dev/null
+++ b/mesalib/src/glsl/ir.h
@@ -0,0 +1,1511 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_H
+#define IR_H
+
+#include <cstdio>
+#include <cstdlib>
+
+extern "C" {
+#include <talloc.h>
+}
+
+#include "list.h"
+#include "ir_visitor.h"
+#include "ir_hierarchical_visitor.h"
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+#endif
+
+/**
+ * \defgroup IR Intermediate representation nodes
+ *
+ * @{
+ */
+
+/**
+ * Class tags
+ *
+ * Each concrete class derived from \c ir_instruction has a value in this
+ * enumerant. The value for the type is stored in \c ir_instruction::ir_type
+ * by the constructor. While using type tags is not very C++, it is extremely
+ * convenient. For example, during debugging you can simply inspect
+ * \c ir_instruction::ir_type to find out the actual type of the object.
+ *
+ * In addition, it is possible to use a switch-statement based on \c
+ * \c ir_instruction::ir_type to select different behavior for different object
+ * types. For functions that have only slight differences for several object
+ * types, this allows writing very straightforward, readable code.
+ */
+enum ir_node_type {
+ /**
+ * Zero is unused so that the IR validator can detect cases where
+ * \c ir_instruction::ir_type has not been initialized.
+ */
+ ir_type_unset,
+ ir_type_variable,
+ ir_type_assignment,
+ ir_type_call,
+ ir_type_constant,
+ ir_type_dereference_array,
+ ir_type_dereference_record,
+ ir_type_dereference_variable,
+ ir_type_discard,
+ ir_type_expression,
+ ir_type_function,
+ ir_type_function_signature,
+ ir_type_if,
+ ir_type_loop,
+ ir_type_loop_jump,
+ ir_type_return,
+ ir_type_swizzle,
+ ir_type_texture,
+ ir_type_max /**< maximum ir_type enum number, for validation */
+};
+
+/**
+ * Base class of all IR instructions
+ */
+class ir_instruction : public exec_node {
+public:
+ enum ir_node_type ir_type;
+ const struct glsl_type *type;
+
+ /** ir_print_visitor helper for debugging. */
+ void print(void) const;
+
+ virtual void accept(ir_visitor *) = 0;
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *) = 0;
+ virtual ir_instruction *clone(void *mem_ctx,
+ struct hash_table *ht) const = 0;
+
+ /**
+ * \name IR instruction downcast functions
+ *
+ * These functions either cast the object to a derived class or return
+ * \c NULL if the object's type does not match the specified derived class.
+ * Additional downcast functions will be added as needed.
+ */
+ /*@{*/
+ virtual class ir_variable * as_variable() { return NULL; }
+ virtual class ir_function * as_function() { return NULL; }
+ virtual class ir_dereference * as_dereference() { return NULL; }
+ virtual class ir_dereference_array * as_dereference_array() { return NULL; }
+ virtual class ir_dereference_variable *as_dereference_variable() { return NULL; }
+ virtual class ir_expression * as_expression() { return NULL; }
+ virtual class ir_rvalue * as_rvalue() { return NULL; }
+ virtual class ir_loop * as_loop() { return NULL; }
+ virtual class ir_assignment * as_assignment() { return NULL; }
+ virtual class ir_call * as_call() { return NULL; }
+ virtual class ir_return * as_return() { return NULL; }
+ virtual class ir_if * as_if() { return NULL; }
+ virtual class ir_swizzle * as_swizzle() { return NULL; }
+ virtual class ir_constant * as_constant() { return NULL; }
+ /*@}*/
+
+protected:
+ ir_instruction()
+ {
+ ir_type = ir_type_unset;
+ type = NULL;
+ }
+};
+
+
+class ir_rvalue : public ir_instruction {
+public:
+ virtual ir_rvalue *clone(void *mem_ctx, struct hash_table *) const = 0;
+
+ virtual ir_constant *constant_expression_value() = 0;
+
+ virtual ir_rvalue * as_rvalue()
+ {
+ return this;
+ }
+
+ virtual bool is_lvalue()
+ {
+ return false;
+ }
+
+ /**
+ * Get the variable that is ultimately referenced by an r-value
+ */
+ virtual ir_variable *variable_referenced()
+ {
+ return NULL;
+ }
+
+
+ /**
+ * If an r-value is a reference to a whole variable, get that variable
+ *
+ * \return
+ * Pointer to a variable that is completely dereferenced by the r-value. If
+ * the r-value is not a dereference or the dereference does not access the
+ * entire variable (i.e., it's just one array element, struct field), \c NULL
+ * is returned.
+ */
+ virtual ir_variable *whole_variable_referenced()
+ {
+ return NULL;
+ }
+
+protected:
+ ir_rvalue();
+};
+
+
+/**
+ * Variable storage classes
+ */
+enum ir_variable_mode {
+ ir_var_auto = 0, /**< Function local variables and globals. */
+ ir_var_uniform, /**< Variable declared as a uniform. */
+ ir_var_in,
+ ir_var_out,
+ ir_var_inout,
+ ir_var_temporary /**< Temporary variable generated during compilation. */
+};
+
+enum ir_variable_interpolation {
+ ir_var_smooth = 0,
+ ir_var_flat,
+ ir_var_noperspective
+};
+
+
+class ir_variable : public ir_instruction {
+public:
+ ir_variable(const struct glsl_type *, const char *, ir_variable_mode);
+
+ virtual ir_variable *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual ir_variable *as_variable()
+ {
+ return this;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+
+ /**
+ * Get the string value for the interpolation qualifier
+ *
+ * \return The string that would be used in a shader to specify \c
+ * mode will be returned.
+ *
+ * This function should only be used on a shader input or output variable.
+ */
+ const char *interpolation_string() const;
+
+ /**
+ * Calculate the number of slots required to hold this variable
+ *
+ * This is used to determine how many uniform or varying locations a variable
+ * occupies. The count is in units of floating point components.
+ */
+ unsigned component_slots() const;
+
+ /**
+ * Delcared name of the variable
+ */
+ const char *name;
+
+ /**
+ * Highest element accessed with a constant expression array index
+ *
+ * Not used for non-array variables.
+ */
+ unsigned max_array_access;
+
+ /**
+ * Is the variable read-only?
+ *
+ * This is set for variables declared as \c const, shader inputs,
+ * and uniforms.
+ */
+ unsigned read_only:1;
+ unsigned centroid:1;
+ unsigned invariant:1;
+
+ /**
+ * Storage class of the variable.
+ *
+ * \sa ir_variable_mode
+ */
+ unsigned mode:3;
+
+ /**
+ * Interpolation mode for shader inputs / outputs
+ *
+ * \sa ir_variable_interpolation
+ */
+ unsigned interpolation:2;
+
+ /**
+ * Flag that the whole array is assignable
+ *
+ * In GLSL 1.20 and later whole arrays are assignable (and comparable for
+ * equality). This flag enables this behavior.
+ */
+ unsigned array_lvalue:1;
+
+ /**
+ * \name ARB_fragment_coord_conventions
+ * @{
+ */
+ unsigned origin_upper_left:1;
+ unsigned pixel_center_integer:1;
+ /*@}*/
+
+ /**
+ * Storage location of the base of this variable
+ *
+ * The precise meaning of this field depends on the nature of the variable.
+ *
+ * - Vertex shader input: one of the values from \c gl_vert_attrib.
+ * - Vertex shader output: one of the values from \c gl_vert_result.
+ * - Fragment shader input: one of the values from \c gl_frag_attrib.
+ * - Fragment shader output: one of the values from \c gl_frag_result.
+ * - Uniforms: Per-stage uniform slot number.
+ * - Other: This field is not currently used.
+ *
+ * If the variable is a uniform, shader input, or shader output, and the
+ * slot has not been assigned, the value will be -1.
+ */
+ int location;
+
+ /**
+ * Emit a warning if this variable is accessed.
+ */
+ const char *warn_extension;
+
+ /**
+ * Value assigned in the initializer of a variable declared "const"
+ */
+ ir_constant *constant_value;
+};
+
+
+/*@{*/
+/**
+ * The representation of a function instance; may be the full definition or
+ * simply a prototype.
+ */
+class ir_function_signature : public ir_instruction {
+ /* An ir_function_signature will be part of the list of signatures in
+ * an ir_function.
+ */
+public:
+ ir_function_signature(const glsl_type *return_type);
+
+ virtual ir_function_signature *clone(void *mem_ctx,
+ struct hash_table *ht) const;
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ /**
+ * Get the name of the function for which this is a signature
+ */
+ const char *function_name() const;
+
+ /**
+ * Get a handle to the function for which this is a signature
+ *
+ * There is no setter function, this function returns a \c const pointer,
+ * and \c ir_function_signature::_function is private for a reason. The
+ * only way to make a connection between a function and function signature
+ * is via \c ir_function::add_signature. This helps ensure that certain
+ * invariants (i.e., a function signature is in the list of signatures for
+ * its \c _function) are met.
+ *
+ * \sa ir_function::add_signature
+ */
+ inline const class ir_function *function() const
+ {
+ return this->_function;
+ }
+
+ /**
+ * Check whether the qualifiers match between this signature's parameters
+ * and the supplied parameter list. If not, returns the name of the first
+ * parameter with mismatched qualifiers (for use in error messages).
+ */
+ const char *qualifiers_match(exec_list *params);
+
+ /**
+ * Replace the current parameter list with the given one. This is useful
+ * if the current information came from a prototype, and either has invalid
+ * or missing parameter names.
+ */
+ void replace_parameters(exec_list *new_params);
+
+ /**
+ * Function return type.
+ *
+ * \note This discards the optional precision qualifier.
+ */
+ const struct glsl_type *return_type;
+
+ /**
+ * List of ir_variable of function parameters.
+ *
+ * This represents the storage. The paramaters passed in a particular
+ * call will be in ir_call::actual_paramaters.
+ */
+ struct exec_list parameters;
+
+ /** Whether or not this function has a body (which may be empty). */
+ unsigned is_defined:1;
+
+ /** Whether or not this function signature is a built-in. */
+ unsigned is_builtin:1;
+
+ /** Body of instructions in the function. */
+ struct exec_list body;
+
+private:
+ /** Function of which this signature is one overload. */
+ class ir_function *_function;
+
+ friend class ir_function;
+};
+
+
+/**
+ * Header for tracking multiple overloaded functions with the same name.
+ * Contains a list of ir_function_signatures representing each of the
+ * actual functions.
+ */
+class ir_function : public ir_instruction {
+public:
+ ir_function(const char *name);
+
+ virtual ir_function *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual ir_function *as_function()
+ {
+ return this;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ void add_signature(ir_function_signature *sig)
+ {
+ sig->_function = this;
+ this->signatures.push_tail(sig);
+ }
+
+ /**
+ * Get an iterator for the set of function signatures
+ */
+ exec_list_iterator iterator()
+ {
+ return signatures.iterator();
+ }
+
+ /**
+ * Find a signature that matches a set of actual parameters, taking implicit
+ * conversions into account.
+ */
+ ir_function_signature *matching_signature(const exec_list *actual_param);
+
+ /**
+ * Find a signature that exactly matches a set of actual parameters without
+ * any implicit type conversions.
+ */
+ ir_function_signature *exact_matching_signature(const exec_list *actual_ps);
+
+ /**
+ * Name of the function.
+ */
+ const char *name;
+
+ /** Whether or not this function has a signature that isn't a built-in. */
+ bool has_user_signature();
+
+ /**
+ * List of ir_function_signature for each overloaded function with this name.
+ */
+ struct exec_list signatures;
+};
+
+inline const char *ir_function_signature::function_name() const
+{
+ return this->_function->name;
+}
+/*@}*/
+
+
+/**
+ * IR instruction representing high-level if-statements
+ */
+class ir_if : public ir_instruction {
+public:
+ ir_if(ir_rvalue *condition)
+ : condition(condition)
+ {
+ ir_type = ir_type_if;
+ }
+
+ virtual ir_if *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual ir_if *as_if()
+ {
+ return this;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ ir_rvalue *condition;
+ /** List of ir_instruction for the body of the then branch */
+ exec_list then_instructions;
+ /** List of ir_instruction for the body of the else branch */
+ exec_list else_instructions;
+};
+
+
+/**
+ * IR instruction representing a high-level loop structure.
+ */
+class ir_loop : public ir_instruction {
+public:
+ ir_loop();
+
+ virtual ir_loop *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ virtual ir_loop *as_loop()
+ {
+ return this;
+ }
+
+ /**
+ * Get an iterator for the instructions of the loop body
+ */
+ exec_list_iterator iterator()
+ {
+ return body_instructions.iterator();
+ }
+
+ /** List of ir_instruction that make up the body of the loop. */
+ exec_list body_instructions;
+
+ /**
+ * \name Loop counter and controls
+ *
+ * Represents a loop like a FORTRAN \c do-loop.
+ *
+ * \note
+ * If \c from and \c to are the same value, the loop will execute once.
+ */
+ /*@{*/
+ ir_rvalue *from; /** Value of the loop counter on the first
+ * iteration of the loop.
+ */
+ ir_rvalue *to; /** Value of the loop counter on the last
+ * iteration of the loop.
+ */
+ ir_rvalue *increment;
+ ir_variable *counter;
+
+ /**
+ * Comparison operation in the loop terminator.
+ *
+ * If any of the loop control fields are non-\c NULL, this field must be
+ * one of \c ir_binop_less, \c ir_binop_greater, \c ir_binop_lequal,
+ * \c ir_binop_gequal, \c ir_binop_equal, or \c ir_binop_nequal.
+ */
+ int cmp;
+ /*@}*/
+};
+
+
+class ir_assignment : public ir_instruction {
+public:
+ ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs, ir_rvalue *condition);
+
+ /**
+ * Construct an assignment with an explicit write mask
+ *
+ * \note
+ * Since a write mask is supplied, the LHS must already be a bare
+ * \c ir_dereference. The cannot be any swizzles in the LHS.
+ */
+ ir_assignment(ir_dereference *lhs, ir_rvalue *rhs, ir_rvalue *condition,
+ unsigned write_mask);
+
+ virtual ir_assignment *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ virtual ir_assignment * as_assignment()
+ {
+ return this;
+ }
+
+ /**
+ * Get a whole variable written by an assignment
+ *
+ * If the LHS of the assignment writes a whole variable, the variable is
+ * returned. Otherwise \c NULL is returned. Examples of whole-variable
+ * assignment are:
+ *
+ * - Assigning to a scalar
+ * - Assigning to all components of a vector
+ * - Whole array (or matrix) assignment
+ * - Whole structure assignment
+ */
+ ir_variable *whole_variable_written();
+
+ /**
+ * Set the LHS of an assignment
+ */
+ void set_lhs(ir_rvalue *lhs);
+
+ /**
+ * Left-hand side of the assignment.
+ *
+ * This should be treated as read only. If you need to set the LHS of an
+ * assignment, use \c ir_assignment::set_lhs.
+ */
+ ir_dereference *lhs;
+
+ /**
+ * Value being assigned
+ */
+ ir_rvalue *rhs;
+
+ /**
+ * Optional condition for the assignment.
+ */
+ ir_rvalue *condition;
+
+
+ /**
+ * Component mask written
+ *
+ * For non-vector types in the LHS, this field will be zero. For vector
+ * types, a bit will be set for each component that is written. Note that
+ * for \c vec2 and \c vec3 types only the lower bits will ever be set.
+ *
+ * A partially-set write mask means that each enabled channel gets
+ * the value from a consecutive channel of the rhs. For example,
+ * to write just .xyw of gl_FrontColor with color:
+ *
+ * (assign (constant bool (1)) (xyw)
+ * (var_ref gl_FragColor)
+ * (swiz xyw (var_ref color)))
+ */
+ unsigned write_mask:4;
+};
+
+/* Update ir_expression::num_operands() and operator_strs when
+ * updating this list.
+ */
+enum ir_expression_operation {
+ ir_unop_bit_not,
+ ir_unop_logic_not,
+ ir_unop_neg,
+ ir_unop_abs,
+ ir_unop_sign,
+ ir_unop_rcp,
+ ir_unop_rsq,
+ ir_unop_sqrt,
+ ir_unop_exp, /**< Log base e on gentype */
+ ir_unop_log, /**< Natural log on gentype */
+ ir_unop_exp2,
+ ir_unop_log2,
+ ir_unop_f2i, /**< Float-to-integer conversion. */
+ ir_unop_i2f, /**< Integer-to-float conversion. */
+ ir_unop_f2b, /**< Float-to-boolean conversion */
+ ir_unop_b2f, /**< Boolean-to-float conversion */
+ ir_unop_i2b, /**< int-to-boolean conversion */
+ ir_unop_b2i, /**< Boolean-to-int conversion */
+ ir_unop_u2f, /**< Unsigned-to-float conversion. */
+ ir_unop_any,
+
+ /**
+ * \name Unary floating-point rounding operations.
+ */
+ /*@{*/
+ ir_unop_trunc,
+ ir_unop_ceil,
+ ir_unop_floor,
+ ir_unop_fract,
+ /*@}*/
+
+ /**
+ * \name Trigonometric operations.
+ */
+ /*@{*/
+ ir_unop_sin,
+ ir_unop_cos,
+ /*@}*/
+
+ /**
+ * \name Partial derivatives.
+ */
+ /*@{*/
+ ir_unop_dFdx,
+ ir_unop_dFdy,
+ /*@}*/
+
+ ir_unop_noise,
+
+ ir_binop_add,
+ ir_binop_sub,
+ ir_binop_mul,
+ ir_binop_div,
+
+ /**
+ * Takes one of two combinations of arguments:
+ *
+ * - mod(vecN, vecN)
+ * - mod(vecN, float)
+ *
+ * Does not take integer types.
+ */
+ ir_binop_mod,
+
+ /**
+ * \name Binary comparison operators which return a boolean vector.
+ * The type of both operands must be equal.
+ */
+ /*@{*/
+ ir_binop_less,
+ ir_binop_greater,
+ ir_binop_lequal,
+ ir_binop_gequal,
+ ir_binop_equal,
+ ir_binop_nequal,
+ /**
+ * Returns single boolean for whether all components of operands[0]
+ * equal the components of operands[1].
+ */
+ ir_binop_all_equal,
+ /**
+ * Returns single boolean for whether any component of operands[0]
+ * is not equal to the corresponding component of operands[1].
+ */
+ ir_binop_any_nequal,
+ /*@}*/
+
+ /**
+ * \name Bit-wise binary operations.
+ */
+ /*@{*/
+ ir_binop_lshift,
+ ir_binop_rshift,
+ ir_binop_bit_and,
+ ir_binop_bit_xor,
+ ir_binop_bit_or,
+ /*@}*/
+
+ ir_binop_logic_and,
+ ir_binop_logic_xor,
+ ir_binop_logic_or,
+
+ ir_binop_dot,
+ ir_binop_cross,
+ ir_binop_min,
+ ir_binop_max,
+
+ ir_binop_pow
+};
+
+class ir_expression : public ir_rvalue {
+public:
+ ir_expression(int op, const struct glsl_type *type,
+ ir_rvalue *, ir_rvalue *);
+
+ virtual ir_expression *as_expression()
+ {
+ return this;
+ }
+
+ virtual ir_expression *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ /**
+ * Attempt to constant-fold the expression
+ *
+ * If the expression cannot be constant folded, this method will return
+ * \c NULL.
+ */
+ virtual ir_constant *constant_expression_value();
+
+ /**
+ * Determine the number of operands used by an expression
+ */
+ static unsigned int get_num_operands(ir_expression_operation);
+
+ /**
+ * Determine the number of operands used by an expression
+ */
+ unsigned int get_num_operands() const
+ {
+ return get_num_operands(operation);
+ }
+
+ /**
+ * Return a string representing this expression's operator.
+ */
+ const char *operator_string();
+
+ /**
+ * Return a string representing this expression's operator.
+ */
+ static const char *operator_string(ir_expression_operation);
+
+
+ /**
+ * Do a reverse-lookup to translate the given string into an operator.
+ */
+ static ir_expression_operation get_operator(const char *);
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ ir_expression_operation operation;
+ ir_rvalue *operands[2];
+};
+
+
+/**
+ * IR instruction representing a function call
+ */
+class ir_call : public ir_rvalue {
+public:
+ ir_call(ir_function_signature *callee, exec_list *actual_parameters)
+ : callee(callee)
+ {
+ ir_type = ir_type_call;
+ assert(callee->return_type != NULL);
+ type = callee->return_type;
+ actual_parameters->move_nodes_to(& this->actual_parameters);
+ }
+
+ virtual ir_call *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual ir_call *as_call()
+ {
+ return this;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ /**
+ * Get a generic ir_call object when an error occurs
+ *
+ * Any allocation will be performed with 'ctx' as talloc owner.
+ */
+ static ir_call *get_error_instruction(void *ctx);
+
+ /**
+ * Get an iterator for the set of acutal parameters
+ */
+ exec_list_iterator iterator()
+ {
+ return actual_parameters.iterator();
+ }
+
+ /**
+ * Get the name of the function being called.
+ */
+ const char *callee_name() const
+ {
+ return callee->function_name();
+ }
+
+ /**
+ * Get the function signature bound to this function call
+ */
+ ir_function_signature *get_callee()
+ {
+ return callee;
+ }
+
+ /**
+ * Set the function call target
+ */
+ void set_callee(ir_function_signature *sig);
+
+ /**
+ * Generates an inline version of the function before @ir,
+ * returning the return value of the function.
+ */
+ ir_rvalue *generate_inline(ir_instruction *ir);
+
+ /* List of ir_rvalue of paramaters passed in this call. */
+ exec_list actual_parameters;
+
+private:
+ ir_call()
+ : callee(NULL)
+ {
+ this->ir_type = ir_type_call;
+ }
+
+ ir_function_signature *callee;
+};
+
+
+/**
+ * \name Jump-like IR instructions.
+ *
+ * These include \c break, \c continue, \c return, and \c discard.
+ */
+/*@{*/
+class ir_jump : public ir_instruction {
+protected:
+ ir_jump()
+ {
+ ir_type = ir_type_unset;
+ }
+};
+
+class ir_return : public ir_jump {
+public:
+ ir_return()
+ : value(NULL)
+ {
+ this->ir_type = ir_type_return;
+ }
+
+ ir_return(ir_rvalue *value)
+ : value(value)
+ {
+ this->ir_type = ir_type_return;
+ }
+
+ virtual ir_return *clone(void *mem_ctx, struct hash_table *) const;
+
+ virtual ir_return *as_return()
+ {
+ return this;
+ }
+
+ ir_rvalue *get_value() const
+ {
+ return value;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ ir_rvalue *value;
+};
+
+
+/**
+ * Jump instructions used inside loops
+ *
+ * These include \c break and \c continue. The \c break within a loop is
+ * different from the \c break within a switch-statement.
+ *
+ * \sa ir_switch_jump
+ */
+class ir_loop_jump : public ir_jump {
+public:
+ enum jump_mode {
+ jump_break,
+ jump_continue
+ };
+
+ ir_loop_jump(jump_mode mode)
+ {
+ this->ir_type = ir_type_loop_jump;
+ this->mode = mode;
+ this->loop = loop;
+ }
+
+ virtual ir_loop_jump *clone(void *mem_ctx, struct hash_table *) const;
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ bool is_break() const
+ {
+ return mode == jump_break;
+ }
+
+ bool is_continue() const
+ {
+ return mode == jump_continue;
+ }
+
+ /** Mode selector for the jump instruction. */
+ enum jump_mode mode;
+private:
+ /** Loop containing this break instruction. */
+ ir_loop *loop;
+};
+
+/**
+ * IR instruction representing discard statements.
+ */
+class ir_discard : public ir_jump {
+public:
+ ir_discard()
+ {
+ this->ir_type = ir_type_discard;
+ this->condition = NULL;
+ }
+
+ ir_discard(ir_rvalue *cond)
+ {
+ this->ir_type = ir_type_discard;
+ this->condition = cond;
+ }
+
+ virtual ir_discard *clone(void *mem_ctx, struct hash_table *ht) const;
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ ir_rvalue *condition;
+};
+/*@}*/
+
+
+/**
+ * Texture sampling opcodes used in ir_texture
+ */
+enum ir_texture_opcode {
+ ir_tex, /**< Regular texture look-up */
+ ir_txb, /**< Texture look-up with LOD bias */
+ ir_txl, /**< Texture look-up with explicit LOD */
+ ir_txd, /**< Texture look-up with partial derivatvies */
+ ir_txf /**< Texel fetch with explicit LOD */
+};
+
+
+/**
+ * IR instruction to sample a texture
+ *
+ * The specific form of the IR instruction depends on the \c mode value
+ * selected from \c ir_texture_opcodes. In the printed IR, these will
+ * appear as:
+ *
+ * Texel offset
+ * | Projection divisor
+ * | | Shadow comparitor
+ * | | |
+ * v v v
+ * (tex (sampler) (coordinate) (0 0 0) (1) ( ))
+ * (txb (sampler) (coordinate) (0 0 0) (1) ( ) (bias))
+ * (txl (sampler) (coordinate) (0 0 0) (1) ( ) (lod))
+ * (txd (sampler) (coordinate) (0 0 0) (1) ( ) (dPdx dPdy))
+ * (txf (sampler) (coordinate) (0 0 0) (lod))
+ */
+class ir_texture : public ir_rvalue {
+public:
+ ir_texture(enum ir_texture_opcode op)
+ : op(op), projector(NULL), shadow_comparitor(NULL)
+ {
+ this->ir_type = ir_type_texture;
+ }
+
+ virtual ir_texture *clone(void *mem_ctx, struct hash_table *) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ /**
+ * Return a string representing the ir_texture_opcode.
+ */
+ const char *opcode_string();
+
+ /** Set the sampler and infer the type. */
+ void set_sampler(ir_dereference *sampler);
+
+ /**
+ * Do a reverse-lookup to translate a string into an ir_texture_opcode.
+ */
+ static ir_texture_opcode get_opcode(const char *);
+
+ enum ir_texture_opcode op;
+
+ /** Sampler to use for the texture access. */
+ ir_dereference *sampler;
+
+ /** Texture coordinate to sample */
+ ir_rvalue *coordinate;
+
+ /**
+ * Value used for projective divide.
+ *
+ * If there is no projective divide (the common case), this will be
+ * \c NULL. Optimization passes should check for this to point to a constant
+ * of 1.0 and replace that with \c NULL.
+ */
+ ir_rvalue *projector;
+
+ /**
+ * Coordinate used for comparison on shadow look-ups.
+ *
+ * If there is no shadow comparison, this will be \c NULL. For the
+ * \c ir_txf opcode, this *must* be \c NULL.
+ */
+ ir_rvalue *shadow_comparitor;
+
+ /** Explicit texel offsets. */
+ signed char offsets[3];
+
+ union {
+ ir_rvalue *lod; /**< Floating point LOD */
+ ir_rvalue *bias; /**< Floating point LOD bias */
+ struct {
+ ir_rvalue *dPdx; /**< Partial derivative of coordinate wrt X */
+ ir_rvalue *dPdy; /**< Partial derivative of coordinate wrt Y */
+ } grad;
+ } lod_info;
+};
+
+
+struct ir_swizzle_mask {
+ unsigned x:2;
+ unsigned y:2;
+ unsigned z:2;
+ unsigned w:2;
+
+ /**
+ * Number of components in the swizzle.
+ */
+ unsigned num_components:3;
+
+ /**
+ * Does the swizzle contain duplicate components?
+ *
+ * L-value swizzles cannot contain duplicate components.
+ */
+ unsigned has_duplicates:1;
+};
+
+
+class ir_swizzle : public ir_rvalue {
+public:
+ ir_swizzle(ir_rvalue *, unsigned x, unsigned y, unsigned z, unsigned w,
+ unsigned count);
+
+ ir_swizzle(ir_rvalue *val, const unsigned *components, unsigned count);
+
+ ir_swizzle(ir_rvalue *val, ir_swizzle_mask mask);
+
+ virtual ir_swizzle *clone(void *mem_ctx, struct hash_table *) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual ir_swizzle *as_swizzle()
+ {
+ return this;
+ }
+
+ /**
+ * Construct an ir_swizzle from the textual representation. Can fail.
+ */
+ static ir_swizzle *create(ir_rvalue *, const char *, unsigned vector_length);
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ bool is_lvalue()
+ {
+ return val->is_lvalue() && !mask.has_duplicates;
+ }
+
+ /**
+ * Get the variable that is ultimately referenced by an r-value
+ */
+ virtual ir_variable *variable_referenced();
+
+ ir_rvalue *val;
+ ir_swizzle_mask mask;
+
+private:
+ /**
+ * Initialize the mask component of a swizzle
+ *
+ * This is used by the \c ir_swizzle constructors.
+ */
+ void init_mask(const unsigned *components, unsigned count);
+};
+
+
+class ir_dereference : public ir_rvalue {
+public:
+ virtual ir_dereference *clone(void *mem_ctx, struct hash_table *) const = 0;
+
+ virtual ir_dereference *as_dereference()
+ {
+ return this;
+ }
+
+ bool is_lvalue();
+
+ /**
+ * Get the variable that is ultimately referenced by an r-value
+ */
+ virtual ir_variable *variable_referenced() = 0;
+};
+
+
+class ir_dereference_variable : public ir_dereference {
+public:
+ ir_dereference_variable(ir_variable *var);
+
+ virtual ir_dereference_variable *clone(void *mem_ctx,
+ struct hash_table *) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual ir_dereference_variable *as_dereference_variable()
+ {
+ return this;
+ }
+
+ /**
+ * Get the variable that is ultimately referenced by an r-value
+ */
+ virtual ir_variable *variable_referenced()
+ {
+ return this->var;
+ }
+
+ virtual ir_variable *whole_variable_referenced()
+ {
+ /* ir_dereference_variable objects always dereference the entire
+ * variable. However, if this dereference is dereferenced by anything
+ * else, the complete deferefernce chain is not a whole-variable
+ * dereference. This method should only be called on the top most
+ * ir_rvalue in a dereference chain.
+ */
+ return this->var;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ /**
+ * Object being dereferenced.
+ */
+ ir_variable *var;
+};
+
+
+class ir_dereference_array : public ir_dereference {
+public:
+ ir_dereference_array(ir_rvalue *value, ir_rvalue *array_index);
+
+ ir_dereference_array(ir_variable *var, ir_rvalue *array_index);
+
+ virtual ir_dereference_array *clone(void *mem_ctx,
+ struct hash_table *) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual ir_dereference_array *as_dereference_array()
+ {
+ return this;
+ }
+
+ /**
+ * Get the variable that is ultimately referenced by an r-value
+ */
+ virtual ir_variable *variable_referenced()
+ {
+ return this->array->variable_referenced();
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ ir_rvalue *array;
+ ir_rvalue *array_index;
+
+private:
+ void set_array(ir_rvalue *value);
+};
+
+
+class ir_dereference_record : public ir_dereference {
+public:
+ ir_dereference_record(ir_rvalue *value, const char *field);
+
+ ir_dereference_record(ir_variable *var, const char *field);
+
+ virtual ir_dereference_record *clone(void *mem_ctx,
+ struct hash_table *) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ /**
+ * Get the variable that is ultimately referenced by an r-value
+ */
+ virtual ir_variable *variable_referenced()
+ {
+ return this->record->variable_referenced();
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ ir_rvalue *record;
+ const char *field;
+};
+
+
+/**
+ * Data stored in an ir_constant
+ */
+union ir_constant_data {
+ unsigned u[16];
+ int i[16];
+ float f[16];
+ bool b[16];
+};
+
+
+class ir_constant : public ir_rvalue {
+public:
+ ir_constant(const struct glsl_type *type, const ir_constant_data *data);
+ ir_constant(bool b);
+ ir_constant(unsigned int u);
+ ir_constant(int i);
+ ir_constant(float f);
+
+ /**
+ * Construct an ir_constant from a list of ir_constant values
+ */
+ ir_constant(const struct glsl_type *type, exec_list *values);
+
+ /**
+ * Construct an ir_constant from a scalar component of another ir_constant
+ *
+ * The new \c ir_constant inherits the type of the component from the
+ * source constant.
+ *
+ * \note
+ * In the case of a matrix constant, the new constant is a scalar, \b not
+ * a vector.
+ */
+ ir_constant(const ir_constant *c, unsigned i);
+
+ /**
+ * Return a new ir_constant of the specified type containing all zeros.
+ */
+ static ir_constant *zero(void *mem_ctx, const glsl_type *type);
+
+ virtual ir_constant *clone(void *mem_ctx, struct hash_table *) const;
+
+ virtual ir_constant *constant_expression_value();
+
+ virtual ir_constant *as_constant()
+ {
+ return this;
+ }
+
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
+ virtual ir_visitor_status accept(ir_hierarchical_visitor *);
+
+ /**
+ * Get a particular component of a constant as a specific type
+ *
+ * This is useful, for example, to get a value from an integer constant
+ * as a float or bool. This appears frequently when constructors are
+ * called with all constant parameters.
+ */
+ /*@{*/
+ bool get_bool_component(unsigned i) const;
+ float get_float_component(unsigned i) const;
+ int get_int_component(unsigned i) const;
+ unsigned get_uint_component(unsigned i) const;
+ /*@}*/
+
+ ir_constant *get_array_element(unsigned i) const;
+
+ ir_constant *get_record_field(const char *name);
+
+ /**
+ * Determine whether a constant has the same value as another constant
+ */
+ bool has_value(const ir_constant *) const;
+
+ /**
+ * Value of the constant.
+ *
+ * The field used to back the values supplied by the constant is determined
+ * by the type associated with the \c ir_instruction. Constants may be
+ * scalars, vectors, or matrices.
+ */
+ union ir_constant_data value;
+
+ /* Array elements */
+ ir_constant **array_elements;
+
+ /* Structure fields */
+ exec_list components;
+
+private:
+ /**
+ * Parameterless constructor only used by the clone method
+ */
+ ir_constant(void);
+};
+
+/*@}*/
+
+/**
+ * Apply a visitor to each IR node in a list
+ */
+void
+visit_exec_list(exec_list *list, ir_visitor *visitor);
+
+/**
+ * Validate invariants on each IR node in a list
+ */
+void validate_ir_tree(exec_list *instructions);
+
+/**
+ * Make a clone of each IR instruction in a list
+ *
+ * \param in List of IR instructions that are to be cloned
+ * \param out List to hold the cloned instructions
+ */
+void
+clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in);
+
+extern void
+_mesa_glsl_initialize_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+extern void
+_mesa_glsl_initialize_functions(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+extern void
+_mesa_glsl_release_functions(void);
+
+extern void
+reparent_ir(exec_list *list, void *mem_ctx);
+
+struct glsl_symbol_table;
+
+extern void
+import_prototypes(const exec_list *source, exec_list *dest,
+ struct glsl_symbol_table *symbols, void *mem_ctx);
+
+extern bool
+ir_has_call(ir_instruction *ir);
+
+extern void
+do_set_program_inouts(exec_list *instructions, struct gl_program *prog);
+
+#endif /* IR_H */
diff --git a/mesalib/src/glsl/ir_algebraic.cpp b/mesalib/src/glsl/ir_algebraic.cpp
new file mode 100644
index 000000000..2ed66db47
--- /dev/null
+++ b/mesalib/src/glsl/ir_algebraic.cpp
@@ -0,0 +1,474 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_algebraic.cpp
+ *
+ * Takes advantage of association, commutivity, and other algebraic
+ * properties to simplify expressions.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+/**
+ * Visitor class for replacing expressions with ir_constant values.
+ */
+
+class ir_algebraic_visitor : public ir_rvalue_visitor {
+public:
+ ir_algebraic_visitor()
+ {
+ this->progress = false;
+ this->mem_ctx = NULL;
+ }
+
+ virtual ~ir_algebraic_visitor()
+ {
+ }
+
+ ir_rvalue *handle_expression(ir_expression *ir);
+ void handle_rvalue(ir_rvalue **rvalue);
+ bool reassociate_constant(ir_expression *ir1,
+ int const_index,
+ ir_constant *constant,
+ ir_expression *ir2);
+ void reassociate_operands(ir_expression *ir1,
+ int op1,
+ ir_expression *ir2,
+ int op2);
+ ir_rvalue *swizzle_if_required(ir_expression *expr,
+ ir_rvalue *operand);
+
+ void *mem_ctx;
+
+ bool progress;
+};
+
+static bool
+is_vec_zero(ir_constant *ir)
+{
+ int c;
+
+ if (!ir)
+ return false;
+ if (!ir->type->is_scalar() &&
+ !ir->type->is_vector())
+ return false;
+
+ for (c = 0; c < ir->type->vector_elements; c++) {
+ switch (ir->type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ if (ir->value.f[c] != 0.0)
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (ir->value.i[c] != 0)
+ return false;
+ break;
+ case GLSL_TYPE_UINT:
+ if (ir->value.u[c] != 0)
+ return false;
+ break;
+ case GLSL_TYPE_BOOL:
+ if (ir->value.b[c] != false)
+ return false;
+ break;
+ default:
+ assert(!"bad base type");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static bool
+is_vec_one(ir_constant *ir)
+{
+ int c;
+
+ if (!ir)
+ return false;
+ if (!ir->type->is_scalar() &&
+ !ir->type->is_vector())
+ return false;
+
+ for (c = 0; c < ir->type->vector_elements; c++) {
+ switch (ir->type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ if (ir->value.f[c] != 1.0)
+ return false;
+ break;
+ case GLSL_TYPE_INT:
+ if (ir->value.i[c] != 1)
+ return false;
+ break;
+ case GLSL_TYPE_UINT:
+ if (ir->value.u[c] != 1)
+ return false;
+ break;
+ case GLSL_TYPE_BOOL:
+ if (ir->value.b[c] != true)
+ return false;
+ break;
+ default:
+ assert(!"bad base type");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static void
+update_type(ir_expression *ir)
+{
+ if (ir->operands[0]->type->is_vector())
+ ir->type = ir->operands[0]->type;
+ else
+ ir->type = ir->operands[1]->type;
+}
+
+void
+ir_algebraic_visitor::reassociate_operands(ir_expression *ir1,
+ int op1,
+ ir_expression *ir2,
+ int op2)
+{
+ ir_rvalue *temp = ir2->operands[op2];
+ ir2->operands[op2] = ir1->operands[op1];
+ ir1->operands[op1] = temp;
+
+ /* Update the type of ir2. The type of ir1 won't have changed --
+ * base types matched, and at least one of the operands of the 2
+ * binops is still a vector if any of them were.
+ */
+ update_type(ir2);
+
+ this->progress = true;
+}
+
+/**
+ * Reassociates a constant down a tree of adds or multiplies.
+ *
+ * Consider (2 * (a * (b * 0.5))). We want to send up with a * b.
+ */
+bool
+ir_algebraic_visitor::reassociate_constant(ir_expression *ir1, int const_index,
+ ir_constant *constant,
+ ir_expression *ir2)
+{
+ if (!ir2 || ir1->operation != ir2->operation)
+ return false;
+
+ /* Don't want to even think about matrices. */
+ if (ir1->operands[0]->type->is_matrix() ||
+ ir1->operands[0]->type->is_matrix() ||
+ ir2->operands[1]->type->is_matrix() ||
+ ir2->operands[1]->type->is_matrix())
+ return false;
+
+ ir_constant *ir2_const[2];
+ ir2_const[0] = ir2->operands[0]->constant_expression_value();
+ ir2_const[1] = ir2->operands[1]->constant_expression_value();
+
+ if (ir2_const[0] && ir2_const[1])
+ return false;
+
+ if (ir2_const[0]) {
+ reassociate_operands(ir1, const_index, ir2, 1);
+ return true;
+ } else if (ir2_const[1]) {
+ reassociate_operands(ir1, const_index, ir2, 0);
+ return true;
+ }
+
+ if (reassociate_constant(ir1, const_index, constant,
+ ir2->operands[0]->as_expression())) {
+ update_type(ir2);
+ return true;
+ }
+
+ if (reassociate_constant(ir1, const_index, constant,
+ ir2->operands[1]->as_expression())) {
+ update_type(ir2);
+ return true;
+ }
+
+ return false;
+}
+
+/* When eliminating an expression and just returning one of its operands,
+ * we may need to swizzle that operand out to a vector if the expression was
+ * vector type.
+ */
+ir_rvalue *
+ir_algebraic_visitor::swizzle_if_required(ir_expression *expr,
+ ir_rvalue *operand)
+{
+ if (expr->type->is_vector() && operand->type->is_scalar()) {
+ return new(mem_ctx) ir_swizzle(operand, 0, 0, 0, 0,
+ expr->type->vector_elements);
+ } else
+ return operand;
+}
+
+ir_rvalue *
+ir_algebraic_visitor::handle_expression(ir_expression *ir)
+{
+ ir_constant *op_const[2] = {NULL, NULL};
+ ir_expression *op_expr[2] = {NULL, NULL};
+ ir_expression *temp;
+ unsigned int i;
+
+ for (i = 0; i < ir->get_num_operands(); i++) {
+ if (ir->operands[i]->type->is_matrix())
+ return ir;
+
+ op_const[i] = ir->operands[i]->constant_expression_value();
+ op_expr[i] = ir->operands[i]->as_expression();
+ }
+
+ if (this->mem_ctx == NULL)
+ this->mem_ctx = talloc_parent(ir);
+
+ switch (ir->operation) {
+ case ir_unop_logic_not: {
+ enum ir_expression_operation new_op = ir_unop_logic_not;
+
+ if (op_expr[0] == NULL)
+ break;
+
+ switch (op_expr[0]->operation) {
+ case ir_binop_less: new_op = ir_binop_gequal; break;
+ case ir_binop_greater: new_op = ir_binop_lequal; break;
+ case ir_binop_lequal: new_op = ir_binop_greater; break;
+ case ir_binop_gequal: new_op = ir_binop_less; break;
+ case ir_binop_equal: new_op = ir_binop_nequal; break;
+ case ir_binop_nequal: new_op = ir_binop_equal; break;
+ case ir_binop_all_equal: new_op = ir_binop_any_nequal; break;
+ case ir_binop_any_nequal: new_op = ir_binop_all_equal; break;
+
+ default:
+ /* The default case handler is here to silence a warning from GCC.
+ */
+ break;
+ }
+
+ if (new_op != ir_unop_logic_not) {
+ this->progress = true;
+ return new(mem_ctx) ir_expression(new_op,
+ ir->type,
+ op_expr[0]->operands[0],
+ op_expr[0]->operands[1]);
+ }
+
+ break;
+ }
+
+ case ir_binop_add:
+ if (is_vec_zero(op_const[0])) {
+ this->progress = true;
+ return swizzle_if_required(ir, ir->operands[1]);
+ }
+ if (is_vec_zero(op_const[1])) {
+ this->progress = true;
+ return swizzle_if_required(ir, ir->operands[0]);
+ }
+
+ /* Reassociate addition of constants so that we can do constant
+ * folding.
+ */
+ if (op_const[0] && !op_const[1])
+ reassociate_constant(ir, 0, op_const[0],
+ ir->operands[1]->as_expression());
+ if (op_const[1] && !op_const[0])
+ reassociate_constant(ir, 1, op_const[1],
+ ir->operands[0]->as_expression());
+ break;
+
+ case ir_binop_sub:
+ if (is_vec_zero(op_const[0])) {
+ this->progress = true;
+ temp = new(mem_ctx) ir_expression(ir_unop_neg,
+ ir->operands[1]->type,
+ ir->operands[1],
+ NULL);
+ return swizzle_if_required(ir, temp);
+ }
+ if (is_vec_zero(op_const[1])) {
+ this->progress = true;
+ return swizzle_if_required(ir, ir->operands[0]);
+ }
+ break;
+
+ case ir_binop_mul:
+ if (is_vec_one(op_const[0])) {
+ this->progress = true;
+ return swizzle_if_required(ir, ir->operands[1]);
+ }
+ if (is_vec_one(op_const[1])) {
+ this->progress = true;
+ return swizzle_if_required(ir, ir->operands[0]);
+ }
+
+ if (is_vec_zero(op_const[0]) || is_vec_zero(op_const[1])) {
+ this->progress = true;
+ return ir_constant::zero(ir, ir->type);
+ }
+
+ /* Reassociate multiplication of constants so that we can do
+ * constant folding.
+ */
+ if (op_const[0] && !op_const[1])
+ reassociate_constant(ir, 0, op_const[0],
+ ir->operands[1]->as_expression());
+ if (op_const[1] && !op_const[0])
+ reassociate_constant(ir, 1, op_const[1],
+ ir->operands[0]->as_expression());
+
+ break;
+
+ case ir_binop_div:
+ if (is_vec_one(op_const[0]) && ir->type->base_type == GLSL_TYPE_FLOAT) {
+ this->progress = true;
+ temp = new(mem_ctx) ir_expression(ir_unop_rcp,
+ ir->operands[1]->type,
+ ir->operands[1],
+ NULL);
+ return swizzle_if_required(ir, temp);
+ }
+ if (is_vec_one(op_const[1])) {
+ this->progress = true;
+ return swizzle_if_required(ir, ir->operands[0]);
+ }
+ break;
+
+ case ir_binop_logic_and:
+ /* FINISHME: Also simplify (a && a) to (a). */
+ if (is_vec_one(op_const[0])) {
+ this->progress = true;
+ return ir->operands[1];
+ } else if (is_vec_one(op_const[1])) {
+ this->progress = true;
+ return ir->operands[0];
+ } else if (is_vec_zero(op_const[0]) || is_vec_zero(op_const[1])) {
+ this->progress = true;
+ return ir_constant::zero(mem_ctx, ir->type);
+ }
+ break;
+
+ case ir_binop_logic_xor:
+ /* FINISHME: Also simplify (a ^^ a) to (false). */
+ if (is_vec_zero(op_const[0])) {
+ this->progress = true;
+ return ir->operands[1];
+ } else if (is_vec_zero(op_const[1])) {
+ this->progress = true;
+ return ir->operands[0];
+ } else if (is_vec_one(op_const[0])) {
+ this->progress = true;
+ return new(mem_ctx) ir_expression(ir_unop_logic_not, ir->type,
+ ir->operands[1], NULL);
+ } else if (is_vec_one(op_const[1])) {
+ this->progress = true;
+ return new(mem_ctx) ir_expression(ir_unop_logic_not, ir->type,
+ ir->operands[0], NULL);
+ }
+ break;
+
+ case ir_binop_logic_or:
+ /* FINISHME: Also simplify (a || a) to (a). */
+ if (is_vec_zero(op_const[0])) {
+ this->progress = true;
+ return ir->operands[1];
+ } else if (is_vec_zero(op_const[1])) {
+ this->progress = true;
+ return ir->operands[0];
+ } else if (is_vec_one(op_const[0]) || is_vec_one(op_const[1])) {
+ ir_constant_data data;
+
+ for (unsigned i = 0; i < 16; i++)
+ data.b[i] = true;
+
+ this->progress = true;
+ return new(mem_ctx) ir_constant(ir->type, &data);
+ }
+ break;
+
+ case ir_unop_rcp:
+ if (op_expr[0] && op_expr[0]->operation == ir_unop_rcp) {
+ this->progress = true;
+ return op_expr[0]->operands[0];
+ }
+
+ /* FINISHME: We should do rcp(rsq(x)) -> sqrt(x) for some
+ * backends, except that some backends will have done sqrt ->
+ * rcp(rsq(x)) and we don't want to undo it for them.
+ */
+
+ /* As far as we know, all backends are OK with rsq. */
+ if (op_expr[0] && op_expr[0]->operation == ir_unop_sqrt) {
+ this->progress = true;
+ temp = new(mem_ctx) ir_expression(ir_unop_rsq,
+ op_expr[0]->operands[0]->type,
+ op_expr[0]->operands[0],
+ NULL);
+ return swizzle_if_required(ir, temp);
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ return ir;
+}
+
+void
+ir_algebraic_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+ if (!*rvalue)
+ return;
+
+ ir_expression *expr = (*rvalue)->as_expression();
+ if (!expr)
+ return;
+
+ *rvalue = handle_expression(expr);
+}
+
+bool
+do_algebraic(exec_list *instructions)
+{
+ ir_algebraic_visitor v;
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_basic_block.cpp b/mesalib/src/glsl/ir_basic_block.cpp
new file mode 100644
index 000000000..a83382596
--- /dev/null
+++ b/mesalib/src/glsl/ir_basic_block.cpp
@@ -0,0 +1,149 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_basic_block.cpp
+ *
+ * Basic block analysis of instruction streams.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_basic_block.h"
+#include "glsl_types.h"
+
+class ir_has_call_visitor : public ir_hierarchical_visitor {
+public:
+ ir_has_call_visitor()
+ {
+ has_call = false;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_call *ir)
+ {
+ (void) ir;
+ has_call = true;
+ return visit_stop;
+ }
+
+ bool has_call;
+};
+
+bool
+ir_has_call(ir_instruction *ir)
+{
+ ir_has_call_visitor v;
+ ir->accept(&v);
+ return v.has_call;
+}
+
+/**
+ * Calls a user function for every basic block in the instruction stream.
+ *
+ * Basic block analysis is pretty easy in our IR thanks to the lack of
+ * unstructured control flow. We've got:
+ *
+ * ir_loop (for () {}, while () {}, do {} while ())
+ * ir_loop_jump (
+ * ir_if () {}
+ * ir_return
+ * ir_call()
+ *
+ * Note that the basic blocks returned by this don't encompass all
+ * operations performed by the program -- for example, if conditions
+ * don't get returned, nor do the assignments that will be generated
+ * for ir_call parameters.
+ */
+void call_for_basic_blocks(exec_list *instructions,
+ void (*callback)(ir_instruction *first,
+ ir_instruction *last,
+ void *data),
+ void *data)
+{
+ ir_instruction *leader = NULL;
+ ir_instruction *last = NULL;
+
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ ir_if *ir_if;
+ ir_loop *ir_loop;
+ ir_function *ir_function;
+
+ if (!leader)
+ leader = ir;
+
+ if ((ir_if = ir->as_if())) {
+ callback(leader, ir, data);
+ leader = NULL;
+
+ call_for_basic_blocks(&ir_if->then_instructions, callback, data);
+ call_for_basic_blocks(&ir_if->else_instructions, callback, data);
+ } else if ((ir_loop = ir->as_loop())) {
+ callback(leader, ir, data);
+ leader = NULL;
+ call_for_basic_blocks(&ir_loop->body_instructions, callback, data);
+ } else if (ir->as_return() || ir->as_call()) {
+ callback(leader, ir, data);
+ leader = NULL;
+ } else if ((ir_function = ir->as_function())) {
+ /* A function definition doesn't interrupt our basic block
+ * since execution doesn't go into it. We should process the
+ * bodies of its signatures for BBs, though.
+ *
+ * Note that we miss an opportunity for producing more
+ * maximal BBs between the instructions that precede main()
+ * and the body of main(). Perhaps those instructions ought
+ * to live inside of main().
+ */
+ foreach_iter(exec_list_iterator, fun_iter, *ir_function) {
+ ir_function_signature *ir_sig;
+
+ ir_sig = (ir_function_signature *)fun_iter.get();
+
+ call_for_basic_blocks(&ir_sig->body, callback, data);
+ }
+ } else if (ir->as_assignment()) {
+ /* If there's a call in the expression tree being assigned,
+ * then that ends the BB too.
+ *
+ * The assumption is that any consumer of the basic block
+ * walker is fine with the fact that the call is somewhere in
+ * the tree even if portions of the tree may be evaluated
+ * after the call.
+ *
+ * A consumer that has an issue with this could not process
+ * the last instruction of the basic block. If doing so,
+ * expression flattener may be useful before using the basic
+ * block finder to get more maximal basic blocks out.
+ */
+ if (ir_has_call(ir)) {
+ callback(leader, ir, data);
+ leader = NULL;
+ }
+ }
+ last = ir;
+ }
+ if (leader) {
+ callback(leader, last, data);
+ }
+}
diff --git a/mesalib/src/glsl/ir_basic_block.h b/mesalib/src/glsl/ir_basic_block.h
new file mode 100644
index 000000000..dbd678b5c
--- /dev/null
+++ b/mesalib/src/glsl/ir_basic_block.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+void call_for_basic_blocks(exec_list *instructions,
+ void (*callback)(ir_instruction *first,
+ ir_instruction *last,
+ void *data),
+ void *data);
diff --git a/mesalib/src/glsl/ir_clone.cpp b/mesalib/src/glsl/ir_clone.cpp
new file mode 100644
index 000000000..18543a35a
--- /dev/null
+++ b/mesalib/src/glsl/ir_clone.cpp
@@ -0,0 +1,405 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <string.h>
+#include "ir.h"
+#include "glsl_types.h"
+extern "C" {
+#include "program/hash_table.h"
+}
+
+/**
+ * Duplicate an IR variable
+ *
+ * \note
+ * This will probably be made \c virtual and moved to the base class
+ * eventually.
+ */
+ir_variable *
+ir_variable::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_variable *var = new(mem_ctx) ir_variable(this->type, this->name,
+ (ir_variable_mode) this->mode);
+
+ var->max_array_access = this->max_array_access;
+ var->read_only = this->read_only;
+ var->centroid = this->centroid;
+ var->invariant = this->invariant;
+ var->interpolation = this->interpolation;
+ var->array_lvalue = this->array_lvalue;
+ var->location = this->location;
+ var->warn_extension = this->warn_extension;
+ var->origin_upper_left = this->origin_upper_left;
+ var->pixel_center_integer = this->pixel_center_integer;
+
+ if (this->constant_value)
+ var->constant_value = this->constant_value->clone(mem_ctx, ht);
+
+ if (ht) {
+ hash_table_insert(ht, var, (void *)const_cast<ir_variable *>(this));
+ }
+
+ return var;
+}
+
+ir_swizzle *
+ir_swizzle::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ return new(mem_ctx) ir_swizzle(this->val->clone(mem_ctx, ht), this->mask);
+}
+
+ir_return *
+ir_return::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_rvalue *new_value = NULL;
+
+ if (this->value)
+ new_value = this->value->clone(mem_ctx, ht);
+
+ return new(mem_ctx) ir_return(new_value);
+}
+
+ir_discard *
+ir_discard::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_rvalue *new_condition = NULL;
+
+ if (this->condition != NULL)
+ new_condition = this->condition->clone(mem_ctx, ht);
+
+ return new(mem_ctx) ir_discard(new_condition);
+}
+
+ir_loop_jump *
+ir_loop_jump::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ (void)ht;
+
+ return new(mem_ctx) ir_loop_jump(this->mode);
+}
+
+ir_if *
+ir_if::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_if *new_if = new(mem_ctx) ir_if(this->condition->clone(mem_ctx, ht));
+
+ foreach_iter(exec_list_iterator, iter, this->then_instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ new_if->then_instructions.push_tail(ir->clone(mem_ctx, ht));
+ }
+
+ foreach_iter(exec_list_iterator, iter, this->else_instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ new_if->else_instructions.push_tail(ir->clone(mem_ctx, ht));
+ }
+
+ return new_if;
+}
+
+ir_loop *
+ir_loop::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_loop *new_loop = new(mem_ctx) ir_loop();
+
+ if (this->from)
+ new_loop->from = this->from->clone(mem_ctx, ht);
+ if (this->to)
+ new_loop->to = this->to->clone(mem_ctx, ht);
+ if (this->increment)
+ new_loop->increment = this->increment->clone(mem_ctx, ht);
+ new_loop->counter = counter;
+
+ foreach_iter(exec_list_iterator, iter, this->body_instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ new_loop->body_instructions.push_tail(ir->clone(mem_ctx, ht));
+ }
+
+ new_loop->cmp = this->cmp;
+ return new_loop;
+}
+
+ir_call *
+ir_call::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ if (this->type == glsl_type::error_type)
+ return ir_call::get_error_instruction(mem_ctx);
+
+ exec_list new_parameters;
+
+ foreach_iter(exec_list_iterator, iter, this->actual_parameters) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ new_parameters.push_tail(ir->clone(mem_ctx, ht));
+ }
+
+ return new(mem_ctx) ir_call(this->callee, &new_parameters);
+}
+
+ir_expression *
+ir_expression::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_rvalue *op[2] = {NULL, NULL};
+ unsigned int i;
+
+ for (i = 0; i < get_num_operands(); i++) {
+ op[i] = this->operands[i]->clone(mem_ctx, ht);
+ }
+
+ return new(mem_ctx) ir_expression(this->operation, this->type, op[0], op[1]);
+}
+
+ir_dereference_variable *
+ir_dereference_variable::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_variable *new_var;
+
+ if (ht) {
+ new_var = (ir_variable *)hash_table_find(ht, this->var);
+ if (!new_var)
+ new_var = this->var;
+ } else {
+ new_var = this->var;
+ }
+
+ return new(mem_ctx) ir_dereference_variable(new_var);
+}
+
+ir_dereference_array *
+ir_dereference_array::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ return new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, ht),
+ this->array_index->clone(mem_ctx,
+ ht));
+}
+
+ir_dereference_record *
+ir_dereference_record::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ return new(mem_ctx) ir_dereference_record(this->record->clone(mem_ctx, ht),
+ this->field);
+}
+
+ir_texture *
+ir_texture::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_texture *new_tex = new(mem_ctx) ir_texture(this->op);
+ new_tex->type = this->type;
+
+ new_tex->sampler = this->sampler->clone(mem_ctx, ht);
+ new_tex->coordinate = this->coordinate->clone(mem_ctx, ht);
+ if (this->projector)
+ new_tex->projector = this->projector->clone(mem_ctx, ht);
+ if (this->shadow_comparitor) {
+ new_tex->shadow_comparitor = this->shadow_comparitor->clone(mem_ctx, ht);
+ }
+
+ for (int i = 0; i < 3; i++)
+ new_tex->offsets[i] = this->offsets[i];
+
+ switch (this->op) {
+ case ir_tex:
+ break;
+ case ir_txb:
+ new_tex->lod_info.bias = this->lod_info.bias->clone(mem_ctx, ht);
+ break;
+ case ir_txl:
+ case ir_txf:
+ new_tex->lod_info.lod = this->lod_info.lod->clone(mem_ctx, ht);
+ break;
+ case ir_txd:
+ new_tex->lod_info.grad.dPdx = this->lod_info.grad.dPdx->clone(mem_ctx, ht);
+ new_tex->lod_info.grad.dPdy = this->lod_info.grad.dPdy->clone(mem_ctx, ht);
+ break;
+ }
+
+ return new_tex;
+}
+
+ir_assignment *
+ir_assignment::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_rvalue *new_condition = NULL;
+
+ if (this->condition)
+ new_condition = this->condition->clone(mem_ctx, ht);
+
+ return new(mem_ctx) ir_assignment(this->lhs->clone(mem_ctx, ht),
+ this->rhs->clone(mem_ctx, ht),
+ new_condition,
+ this->write_mask);
+}
+
+ir_function *
+ir_function::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_function *copy = new(mem_ctx) ir_function(this->name);
+
+ foreach_list_const(node, &this->signatures) {
+ const ir_function_signature *const sig =
+ (const ir_function_signature *const) node;
+
+ ir_function_signature *sig_copy = sig->clone(mem_ctx, ht);
+ copy->add_signature(sig_copy);
+
+ if (ht != NULL)
+ hash_table_insert(ht, sig_copy,
+ (void *)const_cast<ir_function_signature *>(sig));
+ }
+
+ return copy;
+}
+
+ir_function_signature *
+ir_function_signature::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ ir_function_signature *copy =
+ new(mem_ctx) ir_function_signature(this->return_type);
+
+ copy->is_defined = this->is_defined;
+ copy->is_builtin = this->is_builtin;
+
+ /* Clone the parameter list.
+ */
+ foreach_list_const(node, &this->parameters) {
+ const ir_variable *const param = (const ir_variable *) node;
+
+ assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
+
+ ir_variable *const param_copy = param->clone(mem_ctx, ht);
+ copy->parameters.push_tail(param_copy);
+ }
+
+ /* Clone the instruction list.
+ */
+ foreach_list_const(node, &this->body) {
+ const ir_instruction *const inst = (const ir_instruction *) node;
+
+ ir_instruction *const inst_copy = inst->clone(mem_ctx, ht);
+ copy->body.push_tail(inst_copy);
+ }
+
+ return copy;
+}
+
+ir_constant *
+ir_constant::clone(void *mem_ctx, struct hash_table *ht) const
+{
+ (void)ht;
+
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ case GLSL_TYPE_FLOAT:
+ case GLSL_TYPE_BOOL:
+ return new(mem_ctx) ir_constant(this->type, &this->value);
+
+ case GLSL_TYPE_STRUCT: {
+ ir_constant *c = new(mem_ctx) ir_constant;
+
+ c->type = this->type;
+ for (exec_node *node = this->components.head
+ ; !node->is_tail_sentinel()
+ ; node = node->next) {
+ ir_constant *const orig = (ir_constant *) node;
+
+ c->components.push_tail(orig->clone(mem_ctx, NULL));
+ }
+
+ return c;
+ }
+
+ case GLSL_TYPE_ARRAY: {
+ ir_constant *c = new(mem_ctx) ir_constant;
+
+ c->type = this->type;
+ c->array_elements = talloc_array(c, ir_constant *, this->type->length);
+ for (unsigned i = 0; i < this->type->length; i++) {
+ c->array_elements[i] = this->array_elements[i]->clone(mem_ctx, NULL);
+ }
+ return c;
+ }
+
+ default:
+ assert(!"Should not get here.");
+ return NULL;
+ }
+}
+
+
+class fixup_ir_call_visitor : public ir_hierarchical_visitor {
+public:
+ fixup_ir_call_visitor(struct hash_table *ht)
+ {
+ this->ht = ht;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_call *ir)
+ {
+ /* Try to find the function signature referenced by the ir_call in the
+ * table. If it is found, replace it with the value from the table.
+ */
+ ir_function_signature *sig =
+ (ir_function_signature *) hash_table_find(this->ht, ir->get_callee());
+ if (sig != NULL)
+ ir->set_callee(sig);
+
+ /* Since this may be used before function call parameters are flattened,
+ * the children also need to be processed.
+ */
+ return visit_continue;
+ }
+
+private:
+ struct hash_table *ht;
+};
+
+
+static void
+fixup_function_calls(struct hash_table *ht, exec_list *instructions)
+{
+ fixup_ir_call_visitor v(ht);
+ v.run(instructions);
+}
+
+
+void
+clone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in)
+{
+ struct hash_table *ht =
+ hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
+
+ foreach_list_const(node, in) {
+ const ir_instruction *const original = (ir_instruction *) node;
+ ir_instruction *copy = original->clone(mem_ctx, ht);
+
+ out->push_tail(copy);
+ }
+
+ /* Make a pass over the cloned tree to fix up ir_call nodes to point to the
+ * cloned ir_function_signature nodes. This cannot be done automatically
+ * during cloning because the ir_call might be a forward reference (i.e.,
+ * the function signature that it references may not have been cloned yet).
+ */
+ fixup_function_calls(ht, out);
+
+ hash_table_dtor(ht);
+}
diff --git a/mesalib/src/glsl/ir_constant_expression.cpp b/mesalib/src/glsl/ir_constant_expression.cpp
new file mode 100644
index 000000000..61a708f6e
--- /dev/null
+++ b/mesalib/src/glsl/ir_constant_expression.cpp
@@ -0,0 +1,1194 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_constant_expression.cpp
+ * Evaluate and process constant valued expressions
+ *
+ * In GLSL, constant valued expressions are used in several places. These
+ * must be processed and evaluated very early in the compilation process.
+ *
+ * * Sizes of arrays
+ * * Initializers for uniforms
+ * * Initializers for \c const variables
+ */
+
+#include <math.h>
+#include "main/core.h" /* for MAX2, MIN2, CLAMP */
+#include "ir.h"
+#include "ir_visitor.h"
+#include "glsl_types.h"
+
+static float
+dot(ir_constant *op0, ir_constant *op1)
+{
+ assert(op0->type->is_float() && op1->type->is_float());
+
+ float result = 0;
+ for (unsigned c = 0; c < op0->type->components(); c++)
+ result += op0->value.f[c] * op1->value.f[c];
+
+ return result;
+}
+
+ir_constant *
+ir_expression::constant_expression_value()
+{
+ ir_constant *op[2] = { NULL, NULL };
+ ir_constant_data data;
+
+ memset(&data, 0, sizeof(data));
+
+ for (unsigned operand = 0; operand < this->get_num_operands(); operand++) {
+ op[operand] = this->operands[operand]->constant_expression_value();
+ if (!op[operand])
+ return NULL;
+ }
+
+ if (op[1] != NULL)
+ assert(op[0]->type->base_type == op[1]->type->base_type);
+
+ bool op0_scalar = op[0]->type->is_scalar();
+ bool op1_scalar = op[1] != NULL && op[1]->type->is_scalar();
+
+ /* When iterating over a vector or matrix's components, we want to increase
+ * the loop counter. However, for scalars, we want to stay at 0.
+ */
+ unsigned c0_inc = op0_scalar ? 0 : 1;
+ unsigned c1_inc = op1_scalar ? 0 : 1;
+ unsigned components;
+ if (op1_scalar || !op[1]) {
+ components = op[0]->type->components();
+ } else {
+ components = op[1]->type->components();
+ }
+
+ void *ctx = talloc_parent(this);
+
+ /* Handle array operations here, rather than below. */
+ if (op[0]->type->is_array()) {
+ assert(op[1] != NULL && op[1]->type->is_array());
+ switch (this->operation) {
+ case ir_binop_all_equal:
+ return new(ctx) ir_constant(op[0]->has_value(op[1]));
+ case ir_binop_any_nequal:
+ return new(ctx) ir_constant(!op[0]->has_value(op[1]));
+ default:
+ break;
+ }
+ return NULL;
+ }
+
+ switch (this->operation) {
+ case ir_unop_logic_not:
+ assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.b[c] = !op[0]->value.b[c];
+ break;
+
+ case ir_unop_f2i:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.i[c] = op[0]->value.f[c];
+ }
+ break;
+ case ir_unop_i2f:
+ assert(op[0]->type->base_type == GLSL_TYPE_INT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = op[0]->value.i[c];
+ }
+ break;
+ case ir_unop_u2f:
+ assert(op[0]->type->base_type == GLSL_TYPE_UINT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = op[0]->value.u[c];
+ }
+ break;
+ case ir_unop_b2f:
+ assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = op[0]->value.b[c] ? 1.0 : 0.0;
+ }
+ break;
+ case ir_unop_f2b:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.b[c] = bool(op[0]->value.f[c]);
+ }
+ break;
+ case ir_unop_b2i:
+ assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.u[c] = op[0]->value.b[c] ? 1 : 0;
+ }
+ break;
+ case ir_unop_i2b:
+ assert(op[0]->type->is_integer());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.b[c] = bool(op[0]->value.u[c]);
+ }
+ break;
+
+ case ir_unop_any:
+ assert(op[0]->type->is_boolean());
+ data.b[0] = false;
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (op[0]->value.b[c])
+ data.b[0] = true;
+ }
+ break;
+
+ case ir_unop_trunc:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = truncf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_ceil:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = ceilf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_floor:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = floorf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_fract:
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = 0;
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = 0;
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = op[0]->value.f[c] - floor(op[0]->value.f[c]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_unop_sin:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = sinf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_cos:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = cosf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_neg:
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = -op[0]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = -op[0]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = -op[0]->value.f[c];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_unop_abs:
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c];
+ if (data.i[c] < 0)
+ data.i[c] = -data.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = fabs(op[0]->value.f[c]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_unop_sign:
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.i[c] > 0;
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = (op[0]->value.i[c] > 0) - (op[0]->value.i[c] < 0);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = float((op[0]->value.f[c] > 0)-(op[0]->value.f[c] < 0));
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_unop_rcp:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ if (op[0]->value.u[c] != 0.0)
+ data.u[c] = 1 / op[0]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ if (op[0]->value.i[c] != 0.0)
+ data.i[c] = 1 / op[0]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ if (op[0]->value.f[c] != 0.0)
+ data.f[c] = 1.0 / op[0]->value.f[c];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_unop_rsq:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = 1.0 / sqrtf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_sqrt:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = sqrtf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_exp:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = expf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_exp2:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = exp2f(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_log:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = logf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_log2:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = log2f(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_dFdx:
+ case ir_unop_dFdy:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = 0.0;
+ }
+ break;
+
+ case ir_binop_pow:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = powf(op[0]->value.f[c], op[1]->value.f[c]);
+ }
+ break;
+
+ case ir_binop_dot:
+ data.f[0] = dot(op[0], op[1]);
+ break;
+
+ case ir_binop_min:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = MIN2(op[0]->value.u[c0], op[1]->value.u[c1]);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = MIN2(op[0]->value.i[c0], op[1]->value.i[c1]);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = MIN2(op[0]->value.f[c0], op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+ case ir_binop_max:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = MAX2(op[0]->value.u[c0], op[1]->value.u[c1]);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = MAX2(op[0]->value.i[c0], op[1]->value.i[c1]);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = MAX2(op[0]->value.f[c0], op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_binop_cross:
+ assert(op[0]->type == glsl_type::vec3_type);
+ assert(op[1]->type == glsl_type::vec3_type);
+ data.f[0] = (op[0]->value.f[1] * op[1]->value.f[2] -
+ op[1]->value.f[1] * op[0]->value.f[2]);
+ data.f[1] = (op[0]->value.f[2] * op[1]->value.f[0] -
+ op[1]->value.f[2] * op[0]->value.f[0]);
+ data.f[2] = (op[0]->value.f[0] * op[1]->value.f[1] -
+ op[1]->value.f[0] * op[0]->value.f[1]);
+ break;
+
+ case ir_binop_add:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] + op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] + op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = op[0]->value.f[c0] + op[1]->value.f[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+ case ir_binop_sub:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] - op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] - op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = op[0]->value.f[c0] - op[1]->value.f[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+ case ir_binop_mul:
+ /* Check for equal types, or unequal types involving scalars */
+ if ((op[0]->type == op[1]->type && !op[0]->type->is_matrix())
+ || op0_scalar || op1_scalar) {
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] * op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] * op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = op[0]->value.f[c0] * op[1]->value.f[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ } else {
+ assert(op[0]->type->is_matrix() || op[1]->type->is_matrix());
+
+ /* Multiply an N-by-M matrix with an M-by-P matrix. Since either
+ * matrix can be a GLSL vector, either N or P can be 1.
+ *
+ * For vec*mat, the vector is treated as a row vector. This
+ * means the vector is a 1-row x M-column matrix.
+ *
+ * For mat*vec, the vector is treated as a column vector. Since
+ * matrix_columns is 1 for vectors, this just works.
+ */
+ const unsigned n = op[0]->type->is_vector()
+ ? 1 : op[0]->type->vector_elements;
+ const unsigned m = op[1]->type->vector_elements;
+ const unsigned p = op[1]->type->matrix_columns;
+ for (unsigned j = 0; j < p; j++) {
+ for (unsigned i = 0; i < n; i++) {
+ for (unsigned k = 0; k < m; k++) {
+ data.f[i+n*j] += op[0]->value.f[i+n*k]*op[1]->value.f[k+m*j];
+ }
+ }
+ }
+ }
+
+ break;
+ case ir_binop_div:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] / op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] / op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = op[0]->value.f[c0] / op[1]->value.f[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+ case ir_binop_mod:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] % op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] % op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ /* We don't use fmod because it rounds toward zero; GLSL specifies
+ * the use of floor.
+ */
+ data.f[c] = op[0]->value.f[c0] - op[1]->value.f[c1]
+ * floorf(op[0]->value.f[c0] / op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+
+ case ir_binop_logic_and:
+ assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.b[c] = op[0]->value.b[c] && op[1]->value.b[c];
+ break;
+ case ir_binop_logic_xor:
+ assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.b[c] = op[0]->value.b[c] ^ op[1]->value.b[c];
+ break;
+ case ir_binop_logic_or:
+ assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.b[c] = op[0]->value.b[c] || op[1]->value.b[c];
+ break;
+
+ case ir_binop_less:
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[0] = op[0]->value.u[0] < op[1]->value.u[0];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[0] = op[0]->value.i[0] < op[1]->value.i[0];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[0] = op[0]->value.f[0] < op[1]->value.f[0];
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ case ir_binop_greater:
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[0] = op[0]->value.u[0] > op[1]->value.u[0];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[0] = op[0]->value.i[0] > op[1]->value.i[0];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[0] = op[0]->value.f[0] > op[1]->value.f[0];
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ case ir_binop_lequal:
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[0] = op[0]->value.u[0] <= op[1]->value.u[0];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[0] = op[0]->value.i[0] <= op[1]->value.i[0];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[0] = op[0]->value.f[0] <= op[1]->value.f[0];
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ case ir_binop_gequal:
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[0] = op[0]->value.u[0] >= op[1]->value.u[0];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[0] = op[0]->value.i[0] >= op[1]->value.i[0];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[0] = op[0]->value.f[0] >= op[1]->value.f[0];
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ case ir_binop_equal:
+ assert(op[0]->type == op[1]->type);
+ for (unsigned c = 0; c < components; c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] == op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] == op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] == op[1]->value.f[c];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+ case ir_binop_nequal:
+ assert(op[0]->type != op[1]->type);
+ for (unsigned c = 0; c < components; c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] != op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] != op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] != op[1]->value.f[c];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+ case ir_binop_all_equal:
+ data.b[0] = op[0]->has_value(op[1]);
+ break;
+ case ir_binop_any_nequal:
+ data.b[0] = !op[0]->has_value(op[1]);
+ break;
+
+ default:
+ /* FINISHME: Should handle all expression types. */
+ return NULL;
+ }
+
+ return new(ctx) ir_constant(this->type, &data);
+}
+
+
+ir_constant *
+ir_texture::constant_expression_value()
+{
+ /* texture lookups aren't constant expressions */
+ return NULL;
+}
+
+
+ir_constant *
+ir_swizzle::constant_expression_value()
+{
+ ir_constant *v = this->val->constant_expression_value();
+
+ if (v != NULL) {
+ ir_constant_data data = { { 0 } };
+
+ const unsigned swiz_idx[4] = {
+ this->mask.x, this->mask.y, this->mask.z, this->mask.w
+ };
+
+ for (unsigned i = 0; i < this->mask.num_components; i++) {
+ switch (v->type->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT: data.u[i] = v->value.u[swiz_idx[i]]; break;
+ case GLSL_TYPE_FLOAT: data.f[i] = v->value.f[swiz_idx[i]]; break;
+ case GLSL_TYPE_BOOL: data.b[i] = v->value.b[swiz_idx[i]]; break;
+ default: assert(!"Should not get here."); break;
+ }
+ }
+
+ void *ctx = talloc_parent(this);
+ return new(ctx) ir_constant(this->type, &data);
+ }
+ return NULL;
+}
+
+
+ir_constant *
+ir_dereference_variable::constant_expression_value()
+{
+ /* This may occur during compile and var->type is glsl_type::error_type */
+ if (!var)
+ return NULL;
+
+ /* The constant_value of a uniform variable is its initializer,
+ * not the lifetime constant value of the uniform.
+ */
+ if (var->mode == ir_var_uniform)
+ return NULL;
+
+ if (!var->constant_value)
+ return NULL;
+
+ return var->constant_value->clone(talloc_parent(var), NULL);
+}
+
+
+ir_constant *
+ir_dereference_array::constant_expression_value()
+{
+ ir_constant *array = this->array->constant_expression_value();
+ ir_constant *idx = this->array_index->constant_expression_value();
+
+ if ((array != NULL) && (idx != NULL)) {
+ void *ctx = talloc_parent(this);
+ if (array->type->is_matrix()) {
+ /* Array access of a matrix results in a vector.
+ */
+ const unsigned column = idx->value.u[0];
+
+ const glsl_type *const column_type = array->type->column_type();
+
+ /* Offset in the constant matrix to the first element of the column
+ * to be extracted.
+ */
+ const unsigned mat_idx = column * column_type->vector_elements;
+
+ ir_constant_data data;
+
+ switch (column_type->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ for (unsigned i = 0; i < column_type->vector_elements; i++)
+ data.u[i] = array->value.u[mat_idx + i];
+
+ break;
+
+ case GLSL_TYPE_FLOAT:
+ for (unsigned i = 0; i < column_type->vector_elements; i++)
+ data.f[i] = array->value.f[mat_idx + i];
+
+ break;
+
+ default:
+ assert(!"Should not get here.");
+ break;
+ }
+
+ return new(ctx) ir_constant(column_type, &data);
+ } else if (array->type->is_vector()) {
+ const unsigned component = idx->value.u[0];
+
+ return new(ctx) ir_constant(array, component);
+ } else {
+ const unsigned index = idx->value.u[0];
+ return array->get_array_element(index)->clone(ctx, NULL);
+ }
+ }
+ return NULL;
+}
+
+
+ir_constant *
+ir_dereference_record::constant_expression_value()
+{
+ ir_constant *v = this->record->constant_expression_value();
+
+ return (v != NULL) ? v->get_record_field(this->field) : NULL;
+}
+
+
+ir_constant *
+ir_assignment::constant_expression_value()
+{
+ /* FINISHME: Handle CEs involving assignment (return RHS) */
+ return NULL;
+}
+
+
+ir_constant *
+ir_constant::constant_expression_value()
+{
+ return this;
+}
+
+
+ir_constant *
+ir_call::constant_expression_value()
+{
+ if (this->type == glsl_type::error_type)
+ return NULL;
+
+ /* From the GLSL 1.20 spec, page 23:
+ * "Function calls to user-defined functions (non-built-in functions)
+ * cannot be used to form constant expressions."
+ */
+ if (!this->callee->is_builtin)
+ return NULL;
+
+ unsigned num_parameters = 0;
+
+ /* Check if all parameters are constant */
+ ir_constant *op[3];
+ foreach_list(n, &this->actual_parameters) {
+ ir_constant *constant = ((ir_rvalue *) n)->constant_expression_value();
+ if (constant == NULL)
+ return NULL;
+
+ op[num_parameters] = constant;
+
+ assert(num_parameters < 3);
+ num_parameters++;
+ }
+
+ /* Individual cases below can either:
+ * - Assign "expr" a new ir_expression to evaluate (for basic opcodes)
+ * - Fill "data" with appopriate constant data
+ * - Return an ir_constant directly.
+ */
+ void *mem_ctx = talloc_parent(this);
+ ir_expression *expr = NULL;
+
+ ir_constant_data data;
+ memset(&data, 0, sizeof(data));
+
+ const char *callee = this->callee_name();
+ if (strcmp(callee, "abs") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_abs, type, op[0], NULL);
+ } else if (strcmp(callee, "all") == 0) {
+ assert(op[0]->type->is_boolean());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (!op[0]->value.b[c])
+ return new(mem_ctx) ir_constant(false);
+ }
+ return new(mem_ctx) ir_constant(true);
+ } else if (strcmp(callee, "any") == 0) {
+ assert(op[0]->type->is_boolean());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (op[0]->value.b[c])
+ return new(mem_ctx) ir_constant(true);
+ }
+ return new(mem_ctx) ir_constant(false);
+ } else if (strcmp(callee, "acos") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = acosf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "asin") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = asinf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "atan") == 0) {
+ assert(op[0]->type->is_float());
+ if (num_parameters == 2) {
+ assert(op[1]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = atan2f(op[0]->value.f[c], op[1]->value.f[c]);
+ } else {
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = atanf(op[0]->value.f[c]);
+ }
+ } else if (strcmp(callee, "dFdx") == 0 || strcmp(callee, "dFdy") == 0) {
+ return ir_constant::zero(mem_ctx, this->type);
+ } else if (strcmp(callee, "ceil") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_ceil, type, op[0], NULL);
+ } else if (strcmp(callee, "clamp") == 0) {
+ assert(num_parameters == 3);
+ unsigned c1_inc = op[1]->type->is_scalar() ? 0 : 1;
+ unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
+ for (unsigned c = 0, c1 = 0, c2 = 0;
+ c < op[0]->type->components();
+ c1 += c1_inc, c2 += c2_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = CLAMP(op[0]->value.u[c], op[1]->value.u[c1],
+ op[2]->value.u[c2]);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = CLAMP(op[0]->value.i[c], op[1]->value.i[c1],
+ op[2]->value.i[c2]);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = CLAMP(op[0]->value.f[c], op[1]->value.f[c1],
+ op[2]->value.f[c2]);
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "cos") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_cos, type, op[0], NULL);
+ } else if (strcmp(callee, "cosh") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = coshf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "cross") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_cross, type, op[0], op[1]);
+ } else if (strcmp(callee, "degrees") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = 180.0/M_PI * op[0]->value.f[c];
+ } else if (strcmp(callee, "distance") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ float length_squared = 0.0;
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ float t = op[0]->value.f[c] - op[1]->value.f[c];
+ length_squared += t * t;
+ }
+ return new(mem_ctx) ir_constant(sqrtf(length_squared));
+ } else if (strcmp(callee, "dot") == 0) {
+ return new(mem_ctx) ir_constant(dot(op[0], op[1]));
+ } else if (strcmp(callee, "equal") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] == op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] == op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] == op[1]->value.f[c];
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[c] = op[0]->value.b[c] == op[1]->value.b[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "exp") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_exp, type, op[0], NULL);
+ } else if (strcmp(callee, "exp2") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_exp2, type, op[0], NULL);
+ } else if (strcmp(callee, "faceforward") == 0) {
+ if (dot(op[2], op[1]) < 0)
+ return op[0];
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = -op[0]->value.f[c];
+ } else if (strcmp(callee, "floor") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_floor, type, op[0], NULL);
+ } else if (strcmp(callee, "fract") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_fract, type, op[0], NULL);
+ } else if (strcmp(callee, "fwidth") == 0) {
+ return ir_constant::zero(mem_ctx, this->type);
+ } else if (strcmp(callee, "greaterThan") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] > op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] > op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] > op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "greaterThanEqual") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] >= op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] >= op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] >= op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "inversesqrt") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_rsq, type, op[0], NULL);
+ } else if (strcmp(callee, "length") == 0) {
+ return new(mem_ctx) ir_constant(sqrtf(dot(op[0], op[0])));
+ } else if (strcmp(callee, "lessThan") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] < op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] < op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] < op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "lessThanEqual") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] <= op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] <= op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] <= op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "log") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_log, type, op[0], NULL);
+ } else if (strcmp(callee, "log2") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_log2, type, op[0], NULL);
+ } else if (strcmp(callee, "matrixCompMult") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[0]->value.f[c] * op[1]->value.f[c];
+ } else if (strcmp(callee, "max") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_max, type, op[0], op[1]);
+ } else if (strcmp(callee, "min") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_min, type, op[0], op[1]);
+ } else if (strcmp(callee, "mix") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ if (op[2]->type->is_float()) {
+ unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
+ unsigned components = op[0]->type->components();
+ for (unsigned c = 0, c2 = 0; c < components; c2 += c2_inc, c++) {
+ data.f[c] = op[0]->value.f[c] * (1 - op[2]->value.f[c2]) +
+ op[1]->value.f[c] * op[2]->value.f[c2];
+ }
+ } else {
+ assert(op[2]->type->is_boolean());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[op[2]->value.b[c] ? 1 : 0]->value.f[c];
+ }
+ } else if (strcmp(callee, "mod") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_mod, type, op[0], op[1]);
+ } else if (strcmp(callee, "normalize") == 0) {
+ assert(op[0]->type->is_float());
+ float length = sqrtf(dot(op[0], op[0]));
+
+ if (length == 0)
+ return ir_constant::zero(mem_ctx, this->type);
+
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[0]->value.f[c] / length;
+ } else if (strcmp(callee, "not") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_logic_not, type, op[0], NULL);
+ } else if (strcmp(callee, "notEqual") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] != op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] != op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] != op[1]->value.f[c];
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[c] = op[0]->value.b[c] != op[1]->value.b[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "outerProduct") == 0) {
+ assert(op[0]->type->is_vector() && op[1]->type->is_vector());
+ const unsigned m = op[0]->type->vector_elements;
+ const unsigned n = op[1]->type->vector_elements;
+ for (unsigned j = 0; j < n; j++) {
+ for (unsigned i = 0; i < m; i++) {
+ data.f[i+m*j] = op[0]->value.f[i] * op[1]->value.f[j];
+ }
+ }
+ } else if (strcmp(callee, "pow") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_pow, type, op[0], op[1]);
+ } else if (strcmp(callee, "radians") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = M_PI/180.0 * op[0]->value.f[c];
+ } else if (strcmp(callee, "reflect") == 0) {
+ assert(op[0]->type->is_float());
+ float dot_NI = dot(op[1], op[0]);
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[0]->value.f[c] - 2 * dot_NI * op[1]->value.f[c];
+ } else if (strcmp(callee, "refract") == 0) {
+ const float eta = op[2]->value.f[0];
+ const float dot_NI = dot(op[1], op[0]);
+ const float k = 1.0 - eta * eta * (1.0 - dot_NI * dot_NI);
+ if (k < 0.0) {
+ return ir_constant::zero(mem_ctx, this->type);
+ } else {
+ for (unsigned c = 0; c < type->components(); c++) {
+ data.f[c] = eta * op[0]->value.f[c] - (eta * dot_NI + sqrtf(k))
+ * op[1]->value.f[c];
+ }
+ }
+ } else if (strcmp(callee, "sign") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_sign, type, op[0], NULL);
+ } else if (strcmp(callee, "sin") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_sin, type, op[0], NULL);
+ } else if (strcmp(callee, "sinh") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = sinhf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "smoothstep") == 0) {
+ assert(num_parameters == 3);
+ assert(op[1]->type == op[0]->type);
+ unsigned edge_inc = op[0]->type->is_scalar() ? 0 : 1;
+ for (unsigned c = 0, e = 0; c < type->components(); e += edge_inc, c++) {
+ const float edge0 = op[0]->value.f[e];
+ const float edge1 = op[1]->value.f[e];
+ if (edge0 == edge1) {
+ data.f[c] = 0.0; /* Avoid a crash - results are undefined anyway */
+ } else {
+ const float numerator = op[2]->value.f[c] - edge0;
+ const float denominator = edge1 - edge0;
+ const float t = CLAMP(numerator/denominator, 0, 1);
+ data.f[c] = t * t * (3 - 2 * t);
+ }
+ }
+ } else if (strcmp(callee, "sqrt") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_sqrt, type, op[0], NULL);
+ } else if (strcmp(callee, "step") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ /* op[0] (edge) may be either a scalar or a vector */
+ const unsigned c0_inc = op[0]->type->is_scalar() ? 0 : 1;
+ for (unsigned c = 0, c0 = 0; c < type->components(); c0 += c0_inc, c++)
+ data.f[c] = (op[1]->value.f[c] < op[0]->value.f[c0]) ? 0.0 : 1.0;
+ } else if (strcmp(callee, "tan") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = tanf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "tanh") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = tanhf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "transpose") == 0) {
+ assert(op[0]->type->is_matrix());
+ const unsigned n = op[0]->type->vector_elements;
+ const unsigned m = op[0]->type->matrix_columns;
+ for (unsigned j = 0; j < m; j++) {
+ for (unsigned i = 0; i < n; i++) {
+ data.f[m*i+j] += op[0]->value.f[i+n*j];
+ }
+ }
+ } else {
+ /* Unsupported builtin - some are not allowed in constant expressions. */
+ return NULL;
+ }
+
+ if (expr != NULL)
+ return expr->constant_expression_value();
+
+ return new(mem_ctx) ir_constant(this->type, &data);
+}
diff --git a/mesalib/src/glsl/ir_constant_folding.cpp b/mesalib/src/glsl/ir_constant_folding.cpp
new file mode 100644
index 000000000..554c54fae
--- /dev/null
+++ b/mesalib/src/glsl/ir_constant_folding.cpp
@@ -0,0 +1,147 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_constant_folding.cpp
+ * Replace constant-valued expressions with references to constant values.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+/**
+ * Visitor class for replacing expressions with ir_constant values.
+ */
+
+class ir_constant_folding_visitor : public ir_rvalue_visitor {
+public:
+ ir_constant_folding_visitor()
+ {
+ this->progress = false;
+ }
+
+ virtual ~ir_constant_folding_visitor()
+ {
+ /* empty */
+ }
+
+ virtual ir_visitor_status visit_enter(ir_assignment *ir);
+ virtual ir_visitor_status visit_enter(ir_call *ir);
+
+ virtual void handle_rvalue(ir_rvalue **rvalue);
+
+ bool progress;
+};
+
+void
+ir_constant_folding_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+ if (*rvalue == NULL || (*rvalue)->ir_type == ir_type_constant)
+ return;
+
+ /* Note that we do rvalue visitoring on leaving. So if an
+ * expression has a non-constant operand, no need to go looking
+ * down it to find if it's constant. This cuts the time of this
+ * pass down drastically.
+ */
+ ir_expression *expr = (*rvalue)->as_expression();
+ if (expr) {
+ for (unsigned int i = 0; i < expr->get_num_operands(); i++) {
+ if (!expr->operands[i]->as_constant())
+ return;
+ }
+ }
+
+ ir_constant *constant = (*rvalue)->constant_expression_value();
+ if (constant) {
+ *rvalue = constant;
+ this->progress = true;
+ } else {
+ (*rvalue)->accept(this);
+ }
+}
+
+ir_visitor_status
+ir_constant_folding_visitor::visit_enter(ir_assignment *ir)
+{
+ ir->rhs->accept(this);
+ handle_rvalue(&ir->rhs);
+
+ if (ir->condition) {
+ ir->condition->accept(this);
+ handle_rvalue(&ir->condition);
+
+ ir_constant *const_val = ir->condition->as_constant();
+ /* If the condition is constant, either remove the condition or
+ * remove the never-executed assignment.
+ */
+ if (const_val) {
+ if (const_val->value.b[0])
+ ir->condition = NULL;
+ else
+ ir->remove();
+ this->progress = true;
+ }
+ }
+
+ /* Don't descend into the LHS because we want it to stay as a
+ * variable dereference. FINISHME: We probably should to get array
+ * indices though.
+ */
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_constant_folding_visitor::visit_enter(ir_call *ir)
+{
+ exec_list_iterator sig_iter = ir->get_callee()->parameters.iterator();
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param_rval = (ir_rvalue *)iter.get();
+ ir_variable *sig_param = (ir_variable *)sig_iter.get();
+
+ if (sig_param->mode == ir_var_in) {
+ ir_rvalue *new_param = param_rval;
+
+ handle_rvalue(&new_param);
+ if (new_param != param_rval) {
+ param_rval->replace_with(new_param);
+ }
+ }
+ sig_iter.next();
+ }
+
+ return visit_continue_with_parent;
+}
+
+bool
+do_constant_folding(exec_list *instructions)
+{
+ ir_constant_folding_visitor constant_folding;
+
+ visit_list_elements(&constant_folding, instructions);
+
+ return constant_folding.progress;
+}
diff --git a/mesalib/src/glsl/ir_constant_propagation.cpp b/mesalib/src/glsl/ir_constant_propagation.cpp
new file mode 100644
index 000000000..5d875b7be
--- /dev/null
+++ b/mesalib/src/glsl/ir_constant_propagation.cpp
@@ -0,0 +1,437 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * constant of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, constant, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above constantright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR CONSTANTRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_constant_propagation.cpp
+ *
+ * Tracks assignments of constants to channels of variables, and
+ * usage of those constant channels with direct usage of the constants.
+ *
+ * This can lead to constant folding and algebraic optimizations in
+ * those later expressions, while causing no increase in instruction
+ * count (due to constants being generally free to load from a
+ * constant push buffer or as instruction immediate values) and
+ * possibly reducing register pressure.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_basic_block.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+class acp_entry : public exec_node
+{
+public:
+ acp_entry(ir_variable *var, unsigned write_mask, ir_constant *constant)
+ {
+ assert(var);
+ assert(constant);
+ this->var = var;
+ this->write_mask = write_mask;
+ this->constant = constant;
+ }
+
+ ir_variable *var;
+ ir_constant *constant;
+ unsigned write_mask;
+};
+
+
+class kill_entry : public exec_node
+{
+public:
+ kill_entry(ir_variable *var, unsigned write_mask)
+ {
+ assert(var);
+ this->var = var;
+ this->write_mask = write_mask;
+ }
+
+ ir_variable *var;
+ unsigned write_mask;
+};
+
+class ir_constant_propagation_visitor : public ir_rvalue_visitor {
+public:
+ ir_constant_propagation_visitor()
+ {
+ progress = false;
+ mem_ctx = talloc_new(0);
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ }
+ ~ir_constant_propagation_visitor()
+ {
+ talloc_free(mem_ctx);
+ }
+
+ virtual ir_visitor_status visit_enter(class ir_loop *);
+ virtual ir_visitor_status visit_enter(class ir_function_signature *);
+ virtual ir_visitor_status visit_enter(class ir_function *);
+ virtual ir_visitor_status visit_leave(class ir_assignment *);
+ virtual ir_visitor_status visit_enter(class ir_call *);
+ virtual ir_visitor_status visit_enter(class ir_if *);
+
+ void add_constant(ir_assignment *ir);
+ void kill(ir_variable *ir, unsigned write_mask);
+ void handle_if_block(exec_list *instructions);
+ void handle_rvalue(ir_rvalue **rvalue);
+
+ /** List of acp_entry: The available constants to propagate */
+ exec_list *acp;
+
+ /**
+ * List of kill_entry: The masks of variables whose values were
+ * killed in this block.
+ */
+ exec_list *kills;
+
+ bool progress;
+
+ bool killed_all;
+
+ void *mem_ctx;
+};
+
+
+void
+ir_constant_propagation_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+ if (this->in_assignee || !*rvalue)
+ return;
+
+ const glsl_type *type = (*rvalue)->type;
+ if (!type->is_scalar() && !type->is_vector())
+ return;
+
+ ir_swizzle *swiz = NULL;
+ ir_dereference_variable *deref = (*rvalue)->as_dereference_variable();
+ if (!deref) {
+ swiz = (*rvalue)->as_swizzle();
+ if (!swiz)
+ return;
+
+ deref = swiz->val->as_dereference_variable();
+ if (!deref)
+ return;
+ }
+
+ ir_constant_data data;
+ memset(&data, 0, sizeof(data));
+
+ for (unsigned int i = 0; i < type->components(); i++) {
+ int channel;
+ acp_entry *found = NULL;
+
+ if (swiz) {
+ switch (i) {
+ case 0: channel = swiz->mask.x; break;
+ case 1: channel = swiz->mask.y; break;
+ case 2: channel = swiz->mask.z; break;
+ case 3: channel = swiz->mask.w; break;
+ default: assert(!"shouldn't be reached"); channel = 0; break;
+ }
+ } else {
+ channel = i;
+ }
+
+ foreach_iter(exec_list_iterator, iter, *this->acp) {
+ acp_entry *entry = (acp_entry *)iter.get();
+ if (entry->var == deref->var && entry->write_mask & (1 << channel)) {
+ found = entry;
+ break;
+ }
+ }
+
+ if (!found)
+ return;
+
+ int rhs_channel = 0;
+ for (int j = 0; j < 4; j++) {
+ if (j == channel)
+ break;
+ if (found->write_mask & (1 << j))
+ rhs_channel++;
+ }
+
+ switch (type->base_type) {
+ case GLSL_TYPE_FLOAT:
+ data.f[i] = found->constant->value.f[rhs_channel];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[i] = found->constant->value.i[rhs_channel];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[i] = found->constant->value.u[rhs_channel];
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[i] = found->constant->value.b[rhs_channel];
+ break;
+ default:
+ assert(!"not reached");
+ break;
+ }
+ }
+
+ *rvalue = new(talloc_parent(deref)) ir_constant(type, &data);
+ this->progress = true;
+}
+
+ir_visitor_status
+ir_constant_propagation_visitor::visit_enter(ir_function_signature *ir)
+{
+ /* Treat entry into a function signature as a completely separate
+ * block. Any instructions at global scope will be shuffled into
+ * main() at link time, so they're irrelevant to us.
+ */
+ exec_list *orig_acp = this->acp;
+ exec_list *orig_kills = this->kills;
+ bool orig_killed_all = this->killed_all;
+
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ this->killed_all = false;
+
+ visit_list_elements(this, &ir->body);
+
+ this->kills = orig_kills;
+ this->acp = orig_acp;
+ this->killed_all = orig_killed_all;
+
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_constant_propagation_visitor::visit_leave(ir_assignment *ir)
+{
+ if (this->in_assignee)
+ return visit_continue;
+
+ kill(ir->lhs->variable_referenced(), ir->write_mask);
+
+ add_constant(ir);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_constant_propagation_visitor::visit_enter(ir_function *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_constant_propagation_visitor::visit_enter(ir_call *ir)
+{
+ /* Do constant propagation on call parameters, but skip any out params */
+ exec_list_iterator sig_param_iter = ir->get_callee()->parameters.iterator();
+ foreach_iter(exec_list_iterator, iter, ir->actual_parameters) {
+ ir_variable *sig_param = (ir_variable *)sig_param_iter.get();
+ ir_rvalue *param = (ir_rvalue *)iter.get();
+ if (sig_param->mode != ir_var_out && sig_param->mode != ir_var_inout) {
+ ir_rvalue *new_param = param;
+ handle_rvalue(&new_param);
+ if (new_param != param)
+ param->replace_with(new_param);
+ else
+ param->accept(this);
+ }
+ sig_param_iter.next();
+ }
+
+ /* Since we're unlinked, we don't (necssarily) know the side effects of
+ * this call. So kill all copies.
+ */
+ acp->make_empty();
+ this->killed_all = true;
+
+ return visit_continue_with_parent;
+}
+
+void
+ir_constant_propagation_visitor::handle_if_block(exec_list *instructions)
+{
+ exec_list *orig_acp = this->acp;
+ exec_list *orig_kills = this->kills;
+ bool orig_killed_all = this->killed_all;
+
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ this->killed_all = false;
+
+ /* Populate the initial acp with a constant of the original */
+ foreach_iter(exec_list_iterator, iter, *orig_acp) {
+ acp_entry *a = (acp_entry *)iter.get();
+ this->acp->push_tail(new(this->mem_ctx) acp_entry(a->var, a->write_mask,
+ a->constant));
+ }
+
+ visit_list_elements(this, instructions);
+
+ if (this->killed_all) {
+ orig_acp->make_empty();
+ }
+
+ exec_list *new_kills = this->kills;
+ this->kills = orig_kills;
+ this->acp = orig_acp;
+ this->killed_all = this->killed_all || orig_killed_all;
+
+ foreach_iter(exec_list_iterator, iter, *new_kills) {
+ kill_entry *k = (kill_entry *)iter.get();
+ kill(k->var, k->write_mask);
+ }
+}
+
+ir_visitor_status
+ir_constant_propagation_visitor::visit_enter(ir_if *ir)
+{
+ ir->condition->accept(this);
+ handle_rvalue(&ir->condition);
+
+ handle_if_block(&ir->then_instructions);
+ handle_if_block(&ir->else_instructions);
+
+ /* handle_if_block() already descended into the children. */
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_constant_propagation_visitor::visit_enter(ir_loop *ir)
+{
+ exec_list *orig_acp = this->acp;
+ exec_list *orig_kills = this->kills;
+ bool orig_killed_all = this->killed_all;
+
+ /* FINISHME: For now, the initial acp for loops is totally empty.
+ * We could go through once, then go through again with the acp
+ * cloned minus the killed entries after the first run through.
+ */
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ this->killed_all = false;
+
+ visit_list_elements(this, &ir->body_instructions);
+
+ if (this->killed_all) {
+ orig_acp->make_empty();
+ }
+
+ exec_list *new_kills = this->kills;
+ this->kills = orig_kills;
+ this->acp = orig_acp;
+ this->killed_all = this->killed_all || orig_killed_all;
+
+ foreach_iter(exec_list_iterator, iter, *new_kills) {
+ kill_entry *k = (kill_entry *)iter.get();
+ kill(k->var, k->write_mask);
+ }
+
+ /* already descended into the children. */
+ return visit_continue_with_parent;
+}
+
+void
+ir_constant_propagation_visitor::kill(ir_variable *var, unsigned write_mask)
+{
+ assert(var != NULL);
+
+ /* We don't track non-vectors. */
+ if (!var->type->is_vector() && !var->type->is_scalar())
+ return;
+
+ /* Remove any entries currently in the ACP for this kill. */
+ foreach_iter(exec_list_iterator, iter, *this->acp) {
+ acp_entry *entry = (acp_entry *)iter.get();
+
+ if (entry->var == var) {
+ entry->write_mask &= ~write_mask;
+ if (entry->write_mask == 0)
+ entry->remove();
+ }
+ }
+
+ /* Add this writemask of the variable to the list of killed
+ * variables in this block.
+ */
+ foreach_iter(exec_list_iterator, iter, *this->kills) {
+ kill_entry *entry = (kill_entry *)iter.get();
+
+ if (entry->var == var) {
+ entry->write_mask |= write_mask;
+ return;
+ }
+ }
+ /* Not already in the list. Make new entry. */
+ this->kills->push_tail(new(this->mem_ctx) kill_entry(var, write_mask));
+}
+
+/**
+ * Adds an entry to the available constant list if it's a plain assignment
+ * of a variable to a variable.
+ */
+void
+ir_constant_propagation_visitor::add_constant(ir_assignment *ir)
+{
+ acp_entry *entry;
+
+ if (ir->condition) {
+ ir_constant *condition = ir->condition->as_constant();
+ if (!condition || !condition->value.b[0])
+ return;
+ }
+
+ if (!ir->write_mask)
+ return;
+
+ ir_dereference_variable *deref = ir->lhs->as_dereference_variable();
+ ir_constant *constant = ir->rhs->as_constant();
+
+ if (!deref || !constant)
+ return;
+
+ /* Only do constant propagation on vectors. Constant matrices,
+ * arrays, or structures would require more work elsewhere.
+ */
+ if (!deref->var->type->is_vector() && !deref->var->type->is_scalar())
+ return;
+
+ entry = new(this->mem_ctx) acp_entry(deref->var, ir->write_mask, constant);
+ this->acp->push_tail(entry);
+}
+
+/**
+ * Does a constant propagation pass on the code present in the instruction stream.
+ */
+bool
+do_constant_propagation(exec_list *instructions)
+{
+ ir_constant_propagation_visitor v;
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_constant_variable.cpp b/mesalib/src/glsl/ir_constant_variable.cpp
new file mode 100644
index 000000000..1fb73e765
--- /dev/null
+++ b/mesalib/src/glsl/ir_constant_variable.cpp
@@ -0,0 +1,198 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_constant_variable.cpp
+ *
+ * Marks variables assigned a single constant value over the course
+ * of the program as constant.
+ *
+ * The goal here is to trigger further constant folding and then dead
+ * code elimination. This is common with vector/matrix constructors
+ * and calls to builtin functions.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+struct assignment_entry {
+ exec_node link;
+ int assignment_count;
+ ir_variable *var;
+ ir_constant *constval;
+ bool our_scope;
+};
+
+class ir_constant_variable_visitor : public ir_hierarchical_visitor {
+public:
+ virtual ir_visitor_status visit_enter(ir_dereference_variable *);
+ virtual ir_visitor_status visit(ir_variable *);
+ virtual ir_visitor_status visit_enter(ir_assignment *);
+ virtual ir_visitor_status visit_enter(ir_call *);
+
+ exec_list list;
+};
+
+static struct assignment_entry *
+get_assignment_entry(ir_variable *var, exec_list *list)
+{
+ struct assignment_entry *entry;
+
+ foreach_list_typed(struct assignment_entry, entry, link, list) {
+ if (entry->var == var)
+ return entry;
+ }
+
+ entry = (struct assignment_entry *)calloc(1, sizeof(*entry));
+ entry->var = var;
+ list->push_head(&entry->link);
+ return entry;
+}
+
+ir_visitor_status
+ir_constant_variable_visitor::visit(ir_variable *ir)
+{
+ struct assignment_entry *entry = get_assignment_entry(ir, &this->list);
+ entry->our_scope = true;
+ return visit_continue;
+}
+
+/* Skip derefs of variables so that we can detect declarations. */
+ir_visitor_status
+ir_constant_variable_visitor::visit_enter(ir_dereference_variable *ir)
+{
+ (void)ir;
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_constant_variable_visitor::visit_enter(ir_assignment *ir)
+{
+ ir_constant *constval;
+ struct assignment_entry *entry;
+
+ entry = get_assignment_entry(ir->lhs->variable_referenced(), &this->list);
+ assert(entry);
+ entry->assignment_count++;
+
+ /* If it's already constant, don't do the work. */
+ if (entry->var->constant_value)
+ return visit_continue;
+
+ /* OK, now find if we actually have all the right conditions for
+ * this to be a constant value assigned to the var.
+ */
+ if (ir->condition) {
+ constval = ir->condition->constant_expression_value();
+ if (!constval || !constval->value.b[0])
+ return visit_continue;
+ }
+
+ ir_variable *var = ir->whole_variable_written();
+ if (!var)
+ return visit_continue;
+
+ constval = ir->rhs->constant_expression_value();
+ if (!constval)
+ return visit_continue;
+
+ /* Mark this entry as having a constant assignment (if the
+ * assignment count doesn't go >1). do_constant_variable will fix
+ * up the variable with the constant value later.
+ */
+ entry->constval = constval;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_constant_variable_visitor::visit_enter(ir_call *ir)
+{
+ exec_list_iterator sig_iter = ir->get_callee()->parameters.iterator();
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param_rval = (ir_rvalue *)iter.get();
+ ir_variable *param = (ir_variable *)sig_iter.get();
+
+ if (param->mode == ir_var_out ||
+ param->mode == ir_var_inout) {
+ ir_variable *var = param_rval->variable_referenced();
+ struct assignment_entry *entry;
+
+ assert(var);
+ entry = get_assignment_entry(var, &this->list);
+ entry->assignment_count++;
+ }
+ sig_iter.next();
+ }
+ return visit_continue;
+}
+
+/**
+ * Does a copy propagation pass on the code present in the instruction stream.
+ */
+bool
+do_constant_variable(exec_list *instructions)
+{
+ bool progress = false;
+ ir_constant_variable_visitor v;
+
+ v.run(instructions);
+
+ while (!v.list.is_empty()) {
+
+ struct assignment_entry *entry;
+ entry = exec_node_data(struct assignment_entry, v.list.head, link);
+
+ if (entry->assignment_count == 1 && entry->constval && entry->our_scope) {
+ entry->var->constant_value = entry->constval;
+ progress = true;
+ }
+ entry->link.remove();
+ free(entry);
+ }
+
+ return progress;
+}
+
+bool
+do_constant_variable_unlinked(exec_list *instructions)
+{
+ bool progress = false;
+
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ ir_function *f = ir->as_function();
+ if (f) {
+ foreach_iter(exec_list_iterator, sigiter, *f) {
+ ir_function_signature *sig =
+ (ir_function_signature *) sigiter.get();
+ if (do_constant_variable(&sig->body))
+ progress = true;
+ }
+ }
+ }
+
+ return progress;
+}
diff --git a/mesalib/src/glsl/ir_copy_propagation.cpp b/mesalib/src/glsl/ir_copy_propagation.cpp
new file mode 100644
index 000000000..0fe8fa6c4
--- /dev/null
+++ b/mesalib/src/glsl/ir_copy_propagation.cpp
@@ -0,0 +1,348 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_copy_propagation.cpp
+ *
+ * Moves usage of recently-copied variables to the previous copy of
+ * the variable.
+ *
+ * This should reduce the number of MOV instructions in the generated
+ * programs unless copy propagation is also done on the LIR, and may
+ * help anyway by triggering other optimizations that live in the HIR.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_basic_block.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+class acp_entry : public exec_node
+{
+public:
+ acp_entry(ir_variable *lhs, ir_variable *rhs)
+ {
+ assert(lhs);
+ assert(rhs);
+ this->lhs = lhs;
+ this->rhs = rhs;
+ }
+
+ ir_variable *lhs;
+ ir_variable *rhs;
+};
+
+
+class kill_entry : public exec_node
+{
+public:
+ kill_entry(ir_variable *var)
+ {
+ assert(var);
+ this->var = var;
+ }
+
+ ir_variable *var;
+};
+
+class ir_copy_propagation_visitor : public ir_hierarchical_visitor {
+public:
+ ir_copy_propagation_visitor()
+ {
+ progress = false;
+ mem_ctx = talloc_new(0);
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ }
+ ~ir_copy_propagation_visitor()
+ {
+ talloc_free(mem_ctx);
+ }
+
+ virtual ir_visitor_status visit(class ir_dereference_variable *);
+ virtual ir_visitor_status visit_enter(class ir_loop *);
+ virtual ir_visitor_status visit_enter(class ir_function_signature *);
+ virtual ir_visitor_status visit_enter(class ir_function *);
+ virtual ir_visitor_status visit_leave(class ir_assignment *);
+ virtual ir_visitor_status visit_enter(class ir_call *);
+ virtual ir_visitor_status visit_enter(class ir_if *);
+
+ void add_copy(ir_assignment *ir);
+ void kill(ir_variable *ir);
+ void handle_if_block(exec_list *instructions);
+
+ /** List of acp_entry: The available copies to propagate */
+ exec_list *acp;
+ /**
+ * List of kill_entry: The variables whose values were killed in this
+ * block.
+ */
+ exec_list *kills;
+
+ bool progress;
+
+ bool killed_all;
+
+ void *mem_ctx;
+};
+
+ir_visitor_status
+ir_copy_propagation_visitor::visit_enter(ir_function_signature *ir)
+{
+ /* Treat entry into a function signature as a completely separate
+ * block. Any instructions at global scope will be shuffled into
+ * main() at link time, so they're irrelevant to us.
+ */
+ exec_list *orig_acp = this->acp;
+ exec_list *orig_kills = this->kills;
+ bool orig_killed_all = this->killed_all;
+
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ this->killed_all = false;
+
+ visit_list_elements(this, &ir->body);
+
+ this->kills = orig_kills;
+ this->acp = orig_acp;
+ this->killed_all = orig_killed_all;
+
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_copy_propagation_visitor::visit_leave(ir_assignment *ir)
+{
+ kill(ir->lhs->variable_referenced());
+
+ add_copy(ir);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_copy_propagation_visitor::visit_enter(ir_function *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+/**
+ * Replaces dereferences of ACP RHS variables with ACP LHS variables.
+ *
+ * This is where the actual copy propagation occurs. Note that the
+ * rewriting of ir_dereference means that the ir_dereference instance
+ * must not be shared by multiple IR operations!
+ */
+ir_visitor_status
+ir_copy_propagation_visitor::visit(ir_dereference_variable *ir)
+{
+ if (this->in_assignee)
+ return visit_continue;
+
+ ir_variable *var = ir->var;
+
+ foreach_iter(exec_list_iterator, iter, *this->acp) {
+ acp_entry *entry = (acp_entry *)iter.get();
+
+ if (var == entry->lhs) {
+ ir->var = entry->rhs;
+ this->progress = true;
+ break;
+ }
+ }
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_copy_propagation_visitor::visit_enter(ir_call *ir)
+{
+ /* Do copy propagation on call parameters, but skip any out params */
+ exec_list_iterator sig_param_iter = ir->get_callee()->parameters.iterator();
+ foreach_iter(exec_list_iterator, iter, ir->actual_parameters) {
+ ir_variable *sig_param = (ir_variable *)sig_param_iter.get();
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ if (sig_param->mode != ir_var_out && sig_param->mode != ir_var_inout) {
+ ir->accept(this);
+ }
+ sig_param_iter.next();
+ }
+
+ /* Since we're unlinked, we don't (necssarily) know the side effects of
+ * this call. So kill all copies.
+ */
+ acp->make_empty();
+ this->killed_all = true;
+
+ return visit_continue_with_parent;
+}
+
+void
+ir_copy_propagation_visitor::handle_if_block(exec_list *instructions)
+{
+ exec_list *orig_acp = this->acp;
+ exec_list *orig_kills = this->kills;
+ bool orig_killed_all = this->killed_all;
+
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ this->killed_all = false;
+
+ /* Populate the initial acp with a copy of the original */
+ foreach_iter(exec_list_iterator, iter, *orig_acp) {
+ acp_entry *a = (acp_entry *)iter.get();
+ this->acp->push_tail(new(this->mem_ctx) acp_entry(a->lhs, a->rhs));
+ }
+
+ visit_list_elements(this, instructions);
+
+ if (this->killed_all) {
+ orig_acp->make_empty();
+ }
+
+ exec_list *new_kills = this->kills;
+ this->kills = orig_kills;
+ this->acp = orig_acp;
+ this->killed_all = this->killed_all || orig_killed_all;
+
+ foreach_iter(exec_list_iterator, iter, *new_kills) {
+ kill_entry *k = (kill_entry *)iter.get();
+ kill(k->var);
+ }
+}
+
+ir_visitor_status
+ir_copy_propagation_visitor::visit_enter(ir_if *ir)
+{
+ ir->condition->accept(this);
+
+ handle_if_block(&ir->then_instructions);
+ handle_if_block(&ir->else_instructions);
+
+ /* handle_if_block() already descended into the children. */
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_copy_propagation_visitor::visit_enter(ir_loop *ir)
+{
+ exec_list *orig_acp = this->acp;
+ exec_list *orig_kills = this->kills;
+ bool orig_killed_all = this->killed_all;
+
+ /* FINISHME: For now, the initial acp for loops is totally empty.
+ * We could go through once, then go through again with the acp
+ * cloned minus the killed entries after the first run through.
+ */
+ this->acp = new(mem_ctx) exec_list;
+ this->kills = new(mem_ctx) exec_list;
+ this->killed_all = false;
+
+ visit_list_elements(this, &ir->body_instructions);
+
+ if (this->killed_all) {
+ orig_acp->make_empty();
+ }
+
+ exec_list *new_kills = this->kills;
+ this->kills = orig_kills;
+ this->acp = orig_acp;
+ this->killed_all = this->killed_all || orig_killed_all;
+
+ foreach_iter(exec_list_iterator, iter, *new_kills) {
+ kill_entry *k = (kill_entry *)iter.get();
+ kill(k->var);
+ }
+
+ /* already descended into the children. */
+ return visit_continue_with_parent;
+}
+
+void
+ir_copy_propagation_visitor::kill(ir_variable *var)
+{
+ assert(var != NULL);
+
+ /* Remove any entries currently in the ACP for this kill. */
+ foreach_iter(exec_list_iterator, iter, *acp) {
+ acp_entry *entry = (acp_entry *)iter.get();
+
+ if (entry->lhs == var || entry->rhs == var) {
+ entry->remove();
+ }
+ }
+
+ /* Add the LHS variable to the list of killed variables in this block.
+ */
+ this->kills->push_tail(new(this->mem_ctx) kill_entry(var));
+}
+
+/**
+ * Adds an entry to the available copy list if it's a plain assignment
+ * of a variable to a variable.
+ */
+void
+ir_copy_propagation_visitor::add_copy(ir_assignment *ir)
+{
+ acp_entry *entry;
+
+ if (ir->condition) {
+ ir_constant *condition = ir->condition->as_constant();
+ if (!condition || !condition->value.b[0])
+ return;
+ }
+
+ ir_variable *lhs_var = ir->whole_variable_written();
+ ir_variable *rhs_var = ir->rhs->whole_variable_referenced();
+
+ if ((lhs_var != NULL) && (rhs_var != NULL)) {
+ if (lhs_var == rhs_var) {
+ /* This is a dumb assignment, but we've conveniently noticed
+ * it here. Removing it now would mess up the loop iteration
+ * calling us. Just flag it to not execute, and someone else
+ * will clean up the mess.
+ */
+ ir->condition = new(talloc_parent(ir)) ir_constant(false);
+ this->progress = true;
+ } else {
+ entry = new(this->mem_ctx) acp_entry(lhs_var, rhs_var);
+ this->acp->push_tail(entry);
+ }
+ }
+}
+
+/**
+ * Does a copy propagation pass on the code present in the instruction stream.
+ */
+bool
+do_copy_propagation(exec_list *instructions)
+{
+ ir_copy_propagation_visitor v;
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_dead_code.cpp b/mesalib/src/glsl/ir_dead_code.cpp
new file mode 100644
index 000000000..5cf5e99ad
--- /dev/null
+++ b/mesalib/src/glsl/ir_dead_code.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_dead_code.cpp
+ *
+ * Eliminates dead assignments and variable declarations from the code.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_variable_refcount.h"
+#include "glsl_types.h"
+
+static bool debug = false;
+
+/**
+ * Do a dead code pass over instructions and everything that instructions
+ * references.
+ *
+ * Note that this will remove assignments to globals, so it is not suitable
+ * for usage on an unlinked instruction stream.
+ */
+bool
+do_dead_code(exec_list *instructions)
+{
+ ir_variable_refcount_visitor v;
+ bool progress = false;
+
+ v.run(instructions);
+
+ foreach_iter(exec_list_iterator, iter, v.variable_list) {
+ variable_entry *entry = (variable_entry *)iter.get();
+
+ /* Since each assignment is a reference, the refereneced count must be
+ * greater than or equal to the assignment count. If they are equal,
+ * then all of the references are assignments, and the variable is
+ * dead.
+ *
+ * Note that if the variable is neither assigned nor referenced, both
+ * counts will be zero and will be caught by the equality test.
+ */
+ assert(entry->referenced_count >= entry->assigned_count);
+
+ if (debug) {
+ printf("%s@%p: %d refs, %d assigns, %sdeclared in our scope\n",
+ entry->var->name, (void *) entry->var,
+ entry->referenced_count, entry->assigned_count,
+ entry->declaration ? "" : "not ");
+ }
+
+ if ((entry->referenced_count > entry->assigned_count)
+ || !entry->declaration)
+ continue;
+
+ if (entry->assign) {
+ /* Remove a single dead assignment to the variable we found.
+ * Don't do so if it's a shader output, though.
+ */
+ if (entry->var->mode != ir_var_out &&
+ entry->var->mode != ir_var_inout &&
+ !ir_has_call(entry->assign)) {
+ entry->assign->remove();
+ progress = true;
+
+ if (debug) {
+ printf("Removed assignment to %s@%p\n",
+ entry->var->name, (void *) entry->var);
+ }
+ }
+ } else {
+ /* If there are no assignments or references to the variable left,
+ * then we can remove its declaration.
+ */
+
+ /* uniform initializers are precious, and could get used by another
+ * stage.
+ */
+ if (entry->var->mode == ir_var_uniform &&
+ entry->var->constant_value)
+ continue;
+
+ entry->var->remove();
+ progress = true;
+
+ if (debug) {
+ printf("Removed declaration of %s@%p\n",
+ entry->var->name, (void *) entry->var);
+ }
+ }
+ }
+
+ return progress;
+}
+
+/**
+ * Does a dead code pass on the functions present in the instruction stream.
+ *
+ * This is suitable for use while the program is not linked, as it will
+ * ignore variable declarations (and the assignments to them) for variables
+ * with global scope.
+ */
+bool
+do_dead_code_unlinked(exec_list *instructions)
+{
+ bool progress = false;
+
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ ir_function *f = ir->as_function();
+ if (f) {
+ foreach_iter(exec_list_iterator, sigiter, *f) {
+ ir_function_signature *sig =
+ (ir_function_signature *) sigiter.get();
+ if (do_dead_code(&sig->body))
+ progress = true;
+ }
+ }
+ }
+
+ return progress;
+}
diff --git a/mesalib/src/glsl/ir_dead_code_local.cpp b/mesalib/src/glsl/ir_dead_code_local.cpp
new file mode 100644
index 000000000..4bbedf0ff
--- /dev/null
+++ b/mesalib/src/glsl/ir_dead_code_local.cpp
@@ -0,0 +1,229 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_dead_code_local.cpp
+ *
+ * Eliminates local dead assignments from the code.
+ *
+ * This operates on basic blocks, tracking assignments and finding if
+ * they're used before the variable is completely reassigned.
+ *
+ * Compare this to ir_dead_code.cpp, which operates globally looking
+ * for assignments to variables that are never read.
+ */
+
+#include "ir.h"
+#include "ir_basic_block.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+static bool debug = false;
+
+class assignment_entry : public exec_node
+{
+public:
+ assignment_entry(ir_variable *lhs, ir_instruction *ir)
+ {
+ assert(lhs);
+ assert(ir);
+ this->lhs = lhs;
+ this->ir = ir;
+ }
+
+ ir_variable *lhs;
+ ir_instruction *ir;
+};
+
+class kill_for_derefs_visitor : public ir_hierarchical_visitor {
+public:
+ kill_for_derefs_visitor(exec_list *assignments)
+ {
+ this->assignments = assignments;
+ }
+
+ virtual ir_visitor_status visit(ir_dereference_variable *ir)
+ {
+ ir_variable *const var = ir->variable_referenced();
+
+ foreach_iter(exec_list_iterator, iter, *this->assignments) {
+ assignment_entry *entry = (assignment_entry *)iter.get();
+
+ if (entry->lhs == var) {
+ if (debug)
+ printf("kill %s\n", entry->lhs->name);
+ entry->remove();
+ }
+ }
+
+ return visit_continue;
+ }
+
+private:
+ exec_list *assignments;
+};
+
+class array_index_visit : public ir_hierarchical_visitor {
+public:
+ array_index_visit(ir_hierarchical_visitor *v)
+ {
+ this->visitor = v;
+ }
+
+ virtual ir_visitor_status visit_enter(class ir_dereference_array *ir)
+ {
+ ir->array_index->accept(visitor);
+ return visit_continue;
+ }
+
+ static void run(ir_instruction *ir, ir_hierarchical_visitor *v)
+ {
+ array_index_visit top_visit(v);
+ ir->accept(& top_visit);
+ }
+
+ ir_hierarchical_visitor *visitor;
+};
+
+
+/**
+ * Adds an entry to the available copy list if it's a plain assignment
+ * of a variable to a variable.
+ */
+static bool
+process_assignment(void *ctx, ir_assignment *ir, exec_list *assignments)
+{
+ ir_variable *var = NULL;
+ bool progress = false;
+ kill_for_derefs_visitor v(assignments);
+
+ /* Kill assignment entries for things used to produce this assignment. */
+ ir->rhs->accept(&v);
+ if (ir->condition) {
+ ir->condition->accept(&v);
+ }
+
+ /* Kill assignment enties used as array indices.
+ */
+ array_index_visit::run(ir->lhs, &v);
+ var = ir->lhs->variable_referenced();
+ assert(var);
+
+ bool always_assign = true;
+ if (ir->condition) {
+ ir_constant *condition = ir->condition->as_constant();
+ if (!condition || !condition->value.b[0])
+ always_assign = false;
+ }
+
+ /* Now, check if we did a whole-variable assignment. */
+ if (always_assign && (ir->whole_variable_written() != NULL)) {
+ /* We did a whole-variable assignment. So, any instruction in
+ * the assignment list with the same LHS is dead.
+ */
+ if (debug)
+ printf("looking for %s to remove\n", var->name);
+ foreach_iter(exec_list_iterator, iter, *assignments) {
+ assignment_entry *entry = (assignment_entry *)iter.get();
+
+ if (entry->lhs == var) {
+ if (debug)
+ printf("removing %s\n", var->name);
+ entry->ir->remove();
+ entry->remove();
+ progress = true;
+ }
+ }
+ }
+
+ /* Add this instruction to the assignment list available to be removed.
+ * But not if the assignment has other side effects.
+ */
+ if (ir_has_call(ir))
+ return progress;
+
+ assignment_entry *entry = new(ctx) assignment_entry(var, ir);
+ assignments->push_tail(entry);
+
+ if (debug) {
+ printf("add %s\n", var->name);
+
+ printf("current entries\n");
+ foreach_iter(exec_list_iterator, iter, *assignments) {
+ assignment_entry *entry = (assignment_entry *)iter.get();
+
+ printf(" %s\n", entry->lhs->name);
+ }
+ }
+
+ return progress;
+}
+
+static void
+dead_code_local_basic_block(ir_instruction *first,
+ ir_instruction *last,
+ void *data)
+{
+ ir_instruction *ir, *ir_next;
+ /* List of avaialble_copy */
+ exec_list assignments;
+ bool *out_progress = (bool *)data;
+ bool progress = false;
+
+ void *ctx = talloc_new(NULL);
+ /* Safe looping, since process_assignment */
+ for (ir = first, ir_next = (ir_instruction *)first->next;;
+ ir = ir_next, ir_next = (ir_instruction *)ir->next) {
+ ir_assignment *ir_assign = ir->as_assignment();
+
+ if (debug) {
+ ir->print();
+ printf("\n");
+ }
+
+ if (ir_assign) {
+ progress = process_assignment(ctx, ir_assign, &assignments) || progress;
+ } else {
+ kill_for_derefs_visitor kill(&assignments);
+ ir->accept(&kill);
+ }
+
+ if (ir == last)
+ break;
+ }
+ *out_progress = progress;
+ talloc_free(ctx);
+}
+
+/**
+ * Does a copy propagation pass on the code present in the instruction stream.
+ */
+bool
+do_dead_code_local(exec_list *instructions)
+{
+ bool progress = false;
+
+ call_for_basic_blocks(instructions, dead_code_local_basic_block, &progress);
+
+ return progress;
+}
diff --git a/mesalib/src/glsl/ir_dead_functions.cpp b/mesalib/src/glsl/ir_dead_functions.cpp
new file mode 100644
index 000000000..26554441d
--- /dev/null
+++ b/mesalib/src/glsl/ir_dead_functions.cpp
@@ -0,0 +1,151 @@
+ /*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+ /**
+ * \file ir_dead_functions.cpp
+ *
+ * Eliminates unused functions from the linked program.
+ */
+
+ #include "ir.h"
+ #include "ir_visitor.h"
+ #include "ir_expression_flattening.h"
+ #include "glsl_types.h"
+
+ class signature_entry : public exec_node
+ {
+ public:
+ signature_entry(ir_function_signature *sig)
+ {
+ this->signature = sig;
+ this->used = false;
+ }
+
+ ir_function_signature *signature;
+ bool used;
+ };
+
+ class ir_dead_functions_visitor : public ir_hierarchical_visitor {
+ public:
+ ir_dead_functions_visitor()
+ {
+ this->mem_ctx = talloc_new(NULL);
+ }
+
+ ~ir_dead_functions_visitor()
+ {
+ talloc_free(this->mem_ctx);
+ }
+
+ virtual ir_visitor_status visit_enter(ir_function_signature *);
+ virtual ir_visitor_status visit_enter(ir_call *);
+
+ signature_entry *get_signature_entry(ir_function_signature *var);
+
+ bool (*predicate)(ir_instruction *ir);
+
+ /* List of signature_entry */
+ exec_list signature_list;
+ void *mem_ctx;
+ };
+
+
+ signature_entry *
+ ir_dead_functions_visitor::get_signature_entry(ir_function_signature *sig)
+ {
+ foreach_iter(exec_list_iterator, iter, this->signature_list) {
+ signature_entry *entry = (signature_entry *)iter.get();
+ if (entry->signature == sig)
+ return entry;
+ }
+
+ signature_entry *entry = new(mem_ctx) signature_entry(sig);
+ this->signature_list.push_tail(entry);
+ return entry;
+ }
+
+
+ ir_visitor_status
+ ir_dead_functions_visitor::visit_enter(ir_function_signature *ir)
+ {
+ signature_entry *entry = this->get_signature_entry(ir);
+
+ if (strcmp(ir->function_name(), "main") == 0) {
+ entry->used = true;
+ }
+
+ return visit_continue;
+ }
+
+
+ ir_visitor_status
+ ir_dead_functions_visitor::visit_enter(ir_call *ir)
+ {
+ signature_entry *entry = this->get_signature_entry(ir->get_callee());
+
+ entry->used = true;
+
+ return visit_continue;
+}
+
+bool
+do_dead_functions(exec_list *instructions)
+{
+ ir_dead_functions_visitor v;
+ bool progress = false;
+
+ visit_list_elements(&v, instructions);
+
+ /* Now that we've figured out which function signatures are used, remove
+ * the unused ones, and remove function definitions that have no more
+ * signatures.
+ */
+ foreach_iter(exec_list_iterator, iter, v.signature_list) {
+ signature_entry *entry = (signature_entry *)iter.get();
+
+ if (!entry->used) {
+ entry->signature->remove();
+ progress = true;
+ }
+ delete(entry);
+ }
+
+ /* We don't just do this above when we nuked a signature because of
+ * const pointers.
+ */
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ ir_function *func = ir->as_function();
+
+ if (func && func->signatures.is_empty()) {
+ /* At this point (post-linking), the symbol table is no
+ * longer in use, so not removing the function from the
+ * symbol table should be OK.
+ */
+ func->remove();
+ progress = true;
+ }
+ }
+
+ return progress;
+}
diff --git a/mesalib/src/glsl/ir_div_to_mul_rcp.cpp b/mesalib/src/glsl/ir_div_to_mul_rcp.cpp
new file mode 100644
index 000000000..640d5d64f
--- /dev/null
+++ b/mesalib/src/glsl/ir_div_to_mul_rcp.cpp
@@ -0,0 +1,115 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_div_to_mul_rcp.cpp
+ *
+ * Breaks an ir_unop_div expression down to op0 * (rcp(op1)).
+ *
+ * Many GPUs don't have a divide instruction (945 and 965 included),
+ * but they do have an RCP instruction to compute an approximate
+ * reciprocal. By breaking the operation down, constant reciprocals
+ * can get constant folded.
+ */
+
+#include "ir.h"
+#include "glsl_types.h"
+
+class ir_div_to_mul_rcp_visitor : public ir_hierarchical_visitor {
+public:
+ ir_div_to_mul_rcp_visitor()
+ {
+ this->made_progress = false;
+ }
+
+ ir_visitor_status visit_leave(ir_expression *);
+
+ bool made_progress;
+};
+
+bool
+do_div_to_mul_rcp(exec_list *instructions)
+{
+ ir_div_to_mul_rcp_visitor v;
+
+ visit_list_elements(&v, instructions);
+ return v.made_progress;
+}
+
+ir_visitor_status
+ir_div_to_mul_rcp_visitor::visit_leave(ir_expression *ir)
+{
+ if (ir->operation != ir_binop_div)
+ return visit_continue;
+
+ if (ir->operands[1]->type->base_type != GLSL_TYPE_INT &&
+ ir->operands[1]->type->base_type != GLSL_TYPE_UINT) {
+ /* New expression for the 1.0 / op1 */
+ ir_rvalue *expr;
+ expr = new(ir) ir_expression(ir_unop_rcp,
+ ir->operands[1]->type,
+ ir->operands[1],
+ NULL);
+
+ /* op0 / op1 -> op0 * (1.0 / op1) */
+ ir->operation = ir_binop_mul;
+ ir->operands[1] = expr;
+ } else {
+ /* Be careful with integer division -- we need to do it as a
+ * float and re-truncate, since rcp(n > 1) of an integer would
+ * just be 0.
+ */
+ ir_rvalue *op0, *op1;
+ const struct glsl_type *vec_type;
+
+ vec_type = glsl_type::get_instance(GLSL_TYPE_FLOAT,
+ ir->operands[1]->type->vector_elements,
+ ir->operands[1]->type->matrix_columns);
+
+ if (ir->operands[1]->type->base_type == GLSL_TYPE_INT)
+ op1 = new(ir) ir_expression(ir_unop_i2f, vec_type, ir->operands[1], NULL);
+ else
+ op1 = new(ir) ir_expression(ir_unop_u2f, vec_type, ir->operands[1], NULL);
+
+ op1 = new(ir) ir_expression(ir_unop_rcp, op1->type, op1, NULL);
+
+ vec_type = glsl_type::get_instance(GLSL_TYPE_FLOAT,
+ ir->operands[0]->type->vector_elements,
+ ir->operands[0]->type->matrix_columns);
+
+ if (ir->operands[0]->type->base_type == GLSL_TYPE_INT)
+ op0 = new(ir) ir_expression(ir_unop_i2f, vec_type, ir->operands[0], NULL);
+ else
+ op0 = new(ir) ir_expression(ir_unop_u2f, vec_type, ir->operands[0], NULL);
+
+ op0 = new(ir) ir_expression(ir_binop_mul, vec_type, op0, op1);
+
+ ir->operation = ir_unop_f2i;
+ ir->operands[0] = op0;
+ ir->operands[1] = NULL;
+ }
+
+ this->made_progress = true;
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_explog_to_explog2.cpp b/mesalib/src/glsl/ir_explog_to_explog2.cpp
new file mode 100644
index 000000000..78694a202
--- /dev/null
+++ b/mesalib/src/glsl/ir_explog_to_explog2.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_explog_to_explog2.cpp
+ *
+ * Many GPUs don't have a base e log or exponent instruction, but they
+ * do have base 2 versions, so this pass converts exp and log to exp2
+ * and log2 operations.
+ */
+
+#include "main/core.h" /* for log2f on MSVC */
+#include "ir.h"
+#include "glsl_types.h"
+
+class ir_explog_to_explog2_visitor : public ir_hierarchical_visitor {
+public:
+ ir_explog_to_explog2_visitor()
+ {
+ this->progress = false;
+ }
+
+ ir_visitor_status visit_leave(ir_expression *);
+
+ bool progress;
+};
+
+bool
+do_explog_to_explog2(exec_list *instructions)
+{
+ ir_explog_to_explog2_visitor v;
+
+ visit_list_elements(&v, instructions);
+ return v.progress;
+}
+
+ir_visitor_status
+ir_explog_to_explog2_visitor::visit_leave(ir_expression *ir)
+{
+ if (ir->operation == ir_unop_exp) {
+ void *mem_ctx = talloc_parent(ir);
+ ir_constant *log2_e = new(mem_ctx) ir_constant(log2f(M_E));
+
+ ir->operation = ir_unop_exp2;
+ ir->operands[0] = new(mem_ctx) ir_expression(ir_binop_mul,
+ ir->operands[0]->type,
+ ir->operands[0],
+ log2_e);
+ this->progress = true;
+ }
+
+ if (ir->operation == ir_unop_log) {
+ void *mem_ctx = talloc_parent(ir);
+
+ ir->operation = ir_binop_mul;
+ ir->operands[0] = new(mem_ctx) ir_expression(ir_unop_log2,
+ ir->operands[0]->type,
+ ir->operands[0],
+ NULL);
+ ir->operands[1] = new(mem_ctx) ir_constant(1.0f / log2f(M_E));
+ this->progress = true;
+ }
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_expression_flattening.cpp b/mesalib/src/glsl/ir_expression_flattening.cpp
new file mode 100644
index 000000000..7b1b8dbfe
--- /dev/null
+++ b/mesalib/src/glsl/ir_expression_flattening.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_expression_flattening.cpp
+ *
+ * Takes the leaves of expression trees and makes them dereferences of
+ * assignments of the leaves to temporaries, according to a predicate.
+ *
+ * This is used for automatic function inlining, where we want to take
+ * an expression containing a call and move the call out to its own
+ * assignment so that we can inline it at the appropriate place in the
+ * instruction stream.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_expression_flattening.h"
+#include "glsl_types.h"
+
+class ir_expression_flattening_visitor : public ir_rvalue_visitor {
+public:
+ ir_expression_flattening_visitor(bool (*predicate)(ir_instruction *ir))
+ {
+ this->predicate = predicate;
+ }
+
+ virtual ~ir_expression_flattening_visitor()
+ {
+ /* empty */
+ }
+
+ void handle_rvalue(ir_rvalue **rvalue);
+ bool (*predicate)(ir_instruction *ir);
+};
+
+void
+do_expression_flattening(exec_list *instructions,
+ bool (*predicate)(ir_instruction *ir))
+{
+ ir_expression_flattening_visitor v(predicate);
+
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+
+ ir->accept(&v);
+ }
+}
+
+void
+ir_expression_flattening_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+ ir_variable *var;
+ ir_assignment *assign;
+ ir_rvalue *ir = *rvalue;
+
+ if (!ir || !this->predicate(ir))
+ return;
+
+ void *ctx = talloc_parent(ir);
+
+ var = new(ctx) ir_variable(ir->type, "flattening_tmp", ir_var_temporary);
+ base_ir->insert_before(var);
+
+ assign = new(ctx) ir_assignment(new(ctx) ir_dereference_variable(var),
+ ir,
+ NULL);
+ base_ir->insert_before(assign);
+
+ *rvalue = new(ctx) ir_dereference_variable(var);
+}
diff --git a/mesalib/src/glsl/ir_expression_flattening.h b/mesalib/src/glsl/ir_expression_flattening.h
new file mode 100644
index 000000000..2eda15900
--- /dev/null
+++ b/mesalib/src/glsl/ir_expression_flattening.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file ir_expression_flattening.h
+ *
+ * Takes the leaves of expression trees and makes them dereferences of
+ * assignments of the leaves to temporaries, according to a predicate.
+ *
+ * This is used for automatic function inlining, where we want to take
+ * an expression containing a call and move the call out to its own
+ * assignment so that we can inline it at the appropriate place in the
+ * instruction stream.
+ */
+
+void do_expression_flattening(exec_list *instructions,
+ bool (*predicate)(ir_instruction *ir));
diff --git a/mesalib/src/glsl/ir_function.cpp b/mesalib/src/glsl/ir_function.cpp
new file mode 100644
index 000000000..dfdec144b
--- /dev/null
+++ b/mesalib/src/glsl/ir_function.cpp
@@ -0,0 +1,227 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glsl_types.h"
+#include "ir.h"
+
+int
+type_compare(const glsl_type *a, const glsl_type *b)
+{
+ /* If the types are the same, they trivially match.
+ */
+ if (a == b)
+ return 0;
+
+ switch (a->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ case GLSL_TYPE_BOOL:
+ /* There is no implicit conversion to or from integer types or bool.
+ */
+ if ((a->is_integer() != b->is_integer())
+ || (a->is_boolean() != b->is_boolean()))
+ return -1;
+
+ /* FALLTHROUGH */
+
+ case GLSL_TYPE_FLOAT:
+ if ((a->vector_elements != b->vector_elements)
+ || (a->matrix_columns != b->matrix_columns))
+ return -1;
+
+ return 1;
+
+ case GLSL_TYPE_SAMPLER:
+ case GLSL_TYPE_STRUCT:
+ /* Samplers and structures must match exactly.
+ */
+ return -1;
+
+ case GLSL_TYPE_ARRAY:
+ if ((b->base_type != GLSL_TYPE_ARRAY)
+ || (a->length != b->length))
+ return -1;
+
+ /* From GLSL 1.50 spec, page 27 (page 33 of the PDF):
+ * "There are no implicit array or structure conversions."
+ *
+ * If the comparison of the array element types detects that a conversion
+ * would be required, the array types do not match.
+ */
+ return (type_compare(a->fields.array, b->fields.array) == 0) ? 0 : -1;
+
+ case GLSL_TYPE_FUNCTION:
+ case GLSL_TYPE_VOID:
+ case GLSL_TYPE_ERROR:
+ default:
+ /* These are all error conditions. It is invalid for a parameter to
+ * a function to be declared as error, void, or a function.
+ */
+ return -1;
+ }
+
+ /* This point should be unreachable.
+ */
+ assert(0);
+}
+
+
+static int
+parameter_lists_match(const exec_list *list_a, const exec_list *list_b)
+{
+ const exec_node *node_a = list_a->head;
+ const exec_node *node_b = list_b->head;
+ int total_score = 0;
+
+ for (/* empty */
+ ; !node_a->is_tail_sentinel()
+ ; node_a = node_a->next, node_b = node_b->next) {
+ /* If all of the parameters from the other parameter list have been
+ * exhausted, the lists have different length and, by definition,
+ * do not match.
+ */
+ if (node_b->is_tail_sentinel())
+ return -1;
+
+
+ const ir_variable *const param = (ir_variable *) node_a;
+ const ir_instruction *const actual = (ir_instruction *) node_b;
+
+ /* Determine whether or not the types match. If the types are an
+ * exact match, the match score is zero. If the types don't match
+ * but the actual parameter can be coerced to the type of the declared
+ * parameter, the match score is one.
+ */
+ int score;
+ switch ((enum ir_variable_mode)(param->mode)) {
+ case ir_var_auto:
+ case ir_var_uniform:
+ case ir_var_temporary:
+ /* These are all error conditions. It is invalid for a parameter to
+ * a function to be declared as auto (not in, out, or inout) or
+ * as uniform.
+ */
+ assert(0);
+ return -1;
+
+ case ir_var_in:
+ score = type_compare(param->type, actual->type);
+ break;
+
+ case ir_var_out:
+ score = type_compare(actual->type, param->type);
+ break;
+
+ case ir_var_inout:
+ /* Since there are no bi-directional automatic conversions (e.g.,
+ * there is int -> float but no float -> int), inout parameters must
+ * be exact matches.
+ */
+ score = (type_compare(actual->type, param->type) == 0) ? 0 : -1;
+ break;
+
+ default:
+ assert(false);
+ }
+
+ if (score < 0)
+ return -1;
+
+ total_score += score;
+ }
+
+ /* If all of the parameters from the other parameter list have been
+ * exhausted, the lists have different length and, by definition, do not
+ * match.
+ */
+ if (!node_b->is_tail_sentinel())
+ return -1;
+
+ return total_score;
+}
+
+
+ir_function_signature *
+ir_function::matching_signature(const exec_list *actual_parameters)
+{
+ ir_function_signature *match = NULL;
+
+ foreach_iter(exec_list_iterator, iter, signatures) {
+ ir_function_signature *const sig =
+ (ir_function_signature *) iter.get();
+
+ const int score = parameter_lists_match(& sig->parameters,
+ actual_parameters);
+
+ if (score == 0)
+ return sig;
+
+ if (score > 0) {
+ if (match != NULL)
+ return NULL;
+
+ match = sig;
+ }
+ }
+
+ return match;
+}
+
+
+static bool
+parameter_lists_match_exact(const exec_list *list_a, const exec_list *list_b)
+{
+ const exec_node *node_a = list_a->head;
+ const exec_node *node_b = list_b->head;
+
+ for (/* empty */
+ ; !node_a->is_tail_sentinel() && !node_b->is_tail_sentinel()
+ ; node_a = node_a->next, node_b = node_b->next) {
+ ir_variable *a = (ir_variable *) node_a;
+ ir_variable *b = (ir_variable *) node_b;
+
+ /* If the types of the parameters do not match, the parameters lists
+ * are different.
+ */
+ if (a->type != b->type)
+ return false;
+ }
+
+ /* Unless both lists are exhausted, they differ in length and, by
+ * definition, do not match.
+ */
+ return (node_a->is_tail_sentinel() == node_b->is_tail_sentinel());
+}
+
+ir_function_signature *
+ir_function::exact_matching_signature(const exec_list *actual_parameters)
+{
+ foreach_iter(exec_list_iterator, iter, signatures) {
+ ir_function_signature *const sig =
+ (ir_function_signature *) iter.get();
+
+ if (parameter_lists_match_exact(&sig->parameters, actual_parameters))
+ return sig;
+ }
+ return NULL;
+}
diff --git a/mesalib/src/glsl/ir_function_can_inline.cpp b/mesalib/src/glsl/ir_function_can_inline.cpp
new file mode 100644
index 000000000..f29f277ef
--- /dev/null
+++ b/mesalib/src/glsl/ir_function_can_inline.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_function_can_inline.cpp
+ *
+ * Determines if we can inline a function call using ir_function_inlining.cpp.
+ *
+ * The primary restriction is that we can't return from the function
+ * other than as the last instruction. We could potentially work
+ * around this for some constructs by flattening control flow and
+ * moving the return to the end, or by using breaks from a do {} while
+ * (0) loop surrounding the function body.
+ */
+
+#include "ir.h"
+
+class ir_function_can_inline_visitor : public ir_hierarchical_visitor {
+public:
+ ir_function_can_inline_visitor()
+ {
+ this->num_returns = 0;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_return *);
+
+ int num_returns;
+};
+
+ir_visitor_status
+ir_function_can_inline_visitor::visit_enter(ir_return *ir)
+{
+ (void) ir;
+ this->num_returns++;
+ return visit_continue;
+}
+
+bool
+can_inline(ir_call *call)
+{
+ ir_function_can_inline_visitor v;
+ const ir_function_signature *callee = call->get_callee();
+
+ v.run((exec_list *) &callee->body);
+
+ /* If the function is empty (no last instruction) or does not end with a
+ * return statement, we need to count the implicit return.
+ */
+ ir_instruction *last = (ir_instruction *)callee->body.get_tail();
+ if (last == NULL || !last->as_return())
+ v.num_returns++;
+
+ return v.num_returns == 1;
+}
diff --git a/mesalib/src/glsl/ir_function_inlining.cpp b/mesalib/src/glsl/ir_function_inlining.cpp
new file mode 100644
index 000000000..874602c84
--- /dev/null
+++ b/mesalib/src/glsl/ir_function_inlining.cpp
@@ -0,0 +1,417 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_function_inlining.cpp
+ *
+ * Replaces calls to functions with the body of the function.
+ */
+
+#include <inttypes.h>
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_function_inlining.h"
+#include "ir_expression_flattening.h"
+#include "glsl_types.h"
+#include "program/hash_table.h"
+
+static void
+do_sampler_replacement(exec_list *instructions,
+ ir_variable *sampler,
+ ir_dereference *deref);
+
+class ir_function_inlining_visitor : public ir_hierarchical_visitor {
+public:
+ ir_function_inlining_visitor()
+ {
+ progress = false;
+ }
+
+ virtual ~ir_function_inlining_visitor()
+ {
+ /* empty */
+ }
+
+ virtual ir_visitor_status visit_enter(ir_expression *);
+ virtual ir_visitor_status visit_enter(ir_call *);
+ virtual ir_visitor_status visit_enter(ir_assignment *);
+ virtual ir_visitor_status visit_enter(ir_return *);
+ virtual ir_visitor_status visit_enter(ir_texture *);
+ virtual ir_visitor_status visit_enter(ir_swizzle *);
+
+ bool progress;
+};
+
+
+bool
+automatic_inlining_predicate(ir_instruction *ir)
+{
+ ir_call *call = ir->as_call();
+
+ if (call && can_inline(call))
+ return true;
+
+ return false;
+}
+
+bool
+do_function_inlining(exec_list *instructions)
+{
+ ir_function_inlining_visitor v;
+
+ do_expression_flattening(instructions, automatic_inlining_predicate);
+
+ v.run(instructions);
+
+ return v.progress;
+}
+
+static void
+replace_return_with_assignment(ir_instruction *ir, void *data)
+{
+ void *ctx = talloc_parent(ir);
+ ir_variable *retval = (ir_variable *)data;
+ ir_return *ret = ir->as_return();
+
+ if (ret) {
+ if (ret->value) {
+ ir_rvalue *lhs = new(ctx) ir_dereference_variable(retval);
+ ret->replace_with(new(ctx) ir_assignment(lhs, ret->value, NULL));
+ } else {
+ /* un-valued return has to be the last return, or we shouldn't
+ * have reached here. (see can_inline()).
+ */
+ assert(ret->next->is_tail_sentinel());
+ ret->remove();
+ }
+ }
+}
+
+ir_rvalue *
+ir_call::generate_inline(ir_instruction *next_ir)
+{
+ void *ctx = talloc_parent(this);
+ ir_variable **parameters;
+ int num_parameters;
+ int i;
+ ir_variable *retval = NULL;
+ struct hash_table *ht;
+
+ ht = hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
+
+ num_parameters = 0;
+ foreach_iter(exec_list_iterator, iter_sig, this->callee->parameters)
+ num_parameters++;
+
+ parameters = new ir_variable *[num_parameters];
+
+ /* Generate storage for the return value. */
+ if (this->callee->return_type) {
+ retval = new(ctx) ir_variable(this->callee->return_type, "_ret_val",
+ ir_var_auto);
+ next_ir->insert_before(retval);
+ }
+
+ /* Generate the declarations for the parameters to our inlined code,
+ * and set up the mapping of real function body variables to ours.
+ */
+ i = 0;
+ exec_list_iterator sig_param_iter = this->callee->parameters.iterator();
+ exec_list_iterator param_iter = this->actual_parameters.iterator();
+ for (i = 0; i < num_parameters; i++) {
+ ir_variable *sig_param = (ir_variable *) sig_param_iter.get();
+ ir_rvalue *param = (ir_rvalue *) param_iter.get();
+
+ /* Generate a new variable for the parameter. */
+ if (sig_param->type->base_type == GLSL_TYPE_SAMPLER) {
+ /* For samplers, we want the inlined sampler references
+ * referencing the passed in sampler variable, since that
+ * will have the location information, which an assignment of
+ * a sampler wouldn't. Fix it up below.
+ */
+ parameters[i] = NULL;
+ } else {
+ parameters[i] = sig_param->clone(ctx, ht);
+ parameters[i]->mode = ir_var_auto;
+ next_ir->insert_before(parameters[i]);
+ }
+
+ /* Move the actual param into our param variable if it's an 'in' type. */
+ if (parameters[i] && (sig_param->mode == ir_var_in ||
+ sig_param->mode == ir_var_inout)) {
+ ir_assignment *assign;
+
+ assign = new(ctx) ir_assignment(new(ctx) ir_dereference_variable(parameters[i]),
+ param, NULL);
+ next_ir->insert_before(assign);
+ }
+
+ sig_param_iter.next();
+ param_iter.next();
+ }
+
+ exec_list new_instructions;
+
+ /* Generate the inlined body of the function to a new list */
+ foreach_iter(exec_list_iterator, iter, callee->body) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ ir_instruction *new_ir = ir->clone(ctx, ht);
+
+ new_instructions.push_tail(new_ir);
+ visit_tree(new_ir, replace_return_with_assignment, retval);
+ }
+
+ /* If any samplers were passed in, replace any deref of the sampler
+ * with a deref of the sampler argument.
+ */
+ param_iter = this->actual_parameters.iterator();
+ sig_param_iter = this->callee->parameters.iterator();
+ for (i = 0; i < num_parameters; i++) {
+ ir_instruction *const param = (ir_instruction *) param_iter.get();
+ ir_variable *sig_param = (ir_variable *) sig_param_iter.get();
+
+ if (sig_param->type->base_type == GLSL_TYPE_SAMPLER) {
+ ir_dereference *deref = param->as_dereference();
+
+ assert(deref);
+ do_sampler_replacement(&new_instructions, sig_param, deref);
+ }
+ param_iter.next();
+ sig_param_iter.next();
+ }
+
+ /* Now push those new instructions in. */
+ foreach_iter(exec_list_iterator, iter, new_instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ next_ir->insert_before(ir);
+ }
+
+ /* Copy back the value of any 'out' parameters from the function body
+ * variables to our own.
+ */
+ i = 0;
+ param_iter = this->actual_parameters.iterator();
+ sig_param_iter = this->callee->parameters.iterator();
+ for (i = 0; i < num_parameters; i++) {
+ ir_instruction *const param = (ir_instruction *) param_iter.get();
+ const ir_variable *const sig_param = (ir_variable *) sig_param_iter.get();
+
+ /* Move our param variable into the actual param if it's an 'out' type. */
+ if (parameters[i] && (sig_param->mode == ir_var_out ||
+ sig_param->mode == ir_var_inout)) {
+ ir_assignment *assign;
+
+ assign = new(ctx) ir_assignment(param->clone(ctx, NULL)->as_rvalue(),
+ new(ctx) ir_dereference_variable(parameters[i]),
+ NULL);
+ next_ir->insert_before(assign);
+ }
+
+ param_iter.next();
+ sig_param_iter.next();
+ }
+
+ delete [] parameters;
+
+ hash_table_dtor(ht);
+
+ if (retval)
+ return new(ctx) ir_dereference_variable(retval);
+ else
+ return NULL;
+}
+
+
+ir_visitor_status
+ir_function_inlining_visitor::visit_enter(ir_expression *ir)
+{
+ (void) ir;
+ return visit_continue_with_parent;
+}
+
+
+ir_visitor_status
+ir_function_inlining_visitor::visit_enter(ir_return *ir)
+{
+ (void) ir;
+ return visit_continue_with_parent;
+}
+
+
+ir_visitor_status
+ir_function_inlining_visitor::visit_enter(ir_texture *ir)
+{
+ (void) ir;
+ return visit_continue_with_parent;
+}
+
+
+ir_visitor_status
+ir_function_inlining_visitor::visit_enter(ir_swizzle *ir)
+{
+ (void) ir;
+ return visit_continue_with_parent;
+}
+
+
+ir_visitor_status
+ir_function_inlining_visitor::visit_enter(ir_call *ir)
+{
+ if (can_inline(ir)) {
+ /* If the call was part of some tree, then it should have been
+ * flattened out or we shouldn't have seen it because of a
+ * visit_continue_with_parent in this visitor.
+ */
+ assert(ir == base_ir);
+
+ (void) ir->generate_inline(ir);
+ ir->remove();
+ this->progress = true;
+ }
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_function_inlining_visitor::visit_enter(ir_assignment *ir)
+{
+ ir_call *call = ir->rhs->as_call();
+ if (!call || !can_inline(call))
+ return visit_continue;
+
+ /* generates the parameter setup, function body, and returns the return
+ * value of the function
+ */
+ ir_rvalue *rhs = call->generate_inline(ir);
+ assert(rhs);
+
+ ir->rhs = rhs;
+ this->progress = true;
+
+ return visit_continue;
+}
+
+/**
+ * Replaces references to the "sampler" variable with a clone of "deref."
+ *
+ * From the spec, samplers can appear in the tree as function
+ * (non-out) parameters and as the result of array indexing and
+ * structure field selection. In our builtin implementation, they
+ * also appear in the sampler field of an ir_tex instruction.
+ */
+
+class ir_sampler_replacement_visitor : public ir_hierarchical_visitor {
+public:
+ ir_sampler_replacement_visitor(ir_variable *sampler, ir_dereference *deref)
+ {
+ this->sampler = sampler;
+ this->deref = deref;
+ }
+
+ virtual ~ir_sampler_replacement_visitor()
+ {
+ }
+
+ virtual ir_visitor_status visit_leave(ir_call *);
+ virtual ir_visitor_status visit_leave(ir_dereference_array *);
+ virtual ir_visitor_status visit_leave(ir_dereference_record *);
+ virtual ir_visitor_status visit_leave(ir_texture *);
+
+ void replace_deref(ir_dereference **deref);
+ void replace_rvalue(ir_rvalue **rvalue);
+
+ ir_variable *sampler;
+ ir_dereference *deref;
+};
+
+void
+ir_sampler_replacement_visitor::replace_deref(ir_dereference **deref)
+{
+ ir_dereference_variable *deref_var = (*deref)->as_dereference_variable();
+ if (deref_var && deref_var->var == this->sampler) {
+ *deref = this->deref->clone(talloc_parent(*deref), NULL);
+ }
+}
+
+void
+ir_sampler_replacement_visitor::replace_rvalue(ir_rvalue **rvalue)
+{
+ if (!*rvalue)
+ return;
+
+ ir_dereference *deref = (*rvalue)->as_dereference();
+
+ if (!deref)
+ return;
+
+ replace_deref(&deref);
+ *rvalue = deref;
+}
+
+ir_visitor_status
+ir_sampler_replacement_visitor::visit_leave(ir_texture *ir)
+{
+ replace_deref(&ir->sampler);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_sampler_replacement_visitor::visit_leave(ir_dereference_array *ir)
+{
+ replace_rvalue(&ir->array);
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_sampler_replacement_visitor::visit_leave(ir_dereference_record *ir)
+{
+ replace_rvalue(&ir->record);
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_sampler_replacement_visitor::visit_leave(ir_call *ir)
+{
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param = (ir_rvalue *)iter.get();
+ ir_rvalue *new_param = param;
+ replace_rvalue(&new_param);
+
+ if (new_param != param) {
+ param->replace_with(new_param);
+ }
+ }
+ return visit_continue;
+}
+
+static void
+do_sampler_replacement(exec_list *instructions,
+ ir_variable *sampler,
+ ir_dereference *deref)
+{
+ ir_sampler_replacement_visitor v(sampler, deref);
+
+ visit_list_elements(&v, instructions);
+}
diff --git a/mesalib/src/glsl/ir_function_inlining.h b/mesalib/src/glsl/ir_function_inlining.h
new file mode 100644
index 000000000..6db011bbc
--- /dev/null
+++ b/mesalib/src/glsl/ir_function_inlining.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_function_inlining.h
+ *
+ * Replaces calls to functions with the body of the function.
+ */
+
+bool can_inline(ir_call *call);
diff --git a/mesalib/src/glsl/ir_hierarchical_visitor.cpp b/mesalib/src/glsl/ir_hierarchical_visitor.cpp
new file mode 100644
index 000000000..b5eacd6d2
--- /dev/null
+++ b/mesalib/src/glsl/ir_hierarchical_visitor.cpp
@@ -0,0 +1,297 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ir.h"
+#include "ir_hierarchical_visitor.h"
+
+ir_hierarchical_visitor::ir_hierarchical_visitor()
+{
+ this->base_ir = NULL;
+ this->callback = NULL;
+ this->data = NULL;
+ this->in_assignee = false;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit(ir_variable *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit(ir_constant *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit(ir_loop_jump *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit(ir_dereference_variable *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_loop *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_loop *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_function_signature *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_function_signature *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_function *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_function *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_expression *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_expression *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_texture *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_texture *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_swizzle *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_swizzle *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_dereference_array *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_dereference_array *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_dereference_record *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_dereference_record *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_assignment *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_assignment *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_call *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_call *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_return *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_return *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_discard *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_discard *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_enter(ir_if *ir)
+{
+ if (this->callback != NULL)
+ this->callback(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_hierarchical_visitor::visit_leave(ir_if *ir)
+{
+ (void) ir;
+ return visit_continue;
+}
+
+void
+ir_hierarchical_visitor::run(exec_list *instructions)
+{
+ visit_list_elements(this, instructions);
+}
+
+
+void
+visit_tree(ir_instruction *ir,
+ void (*callback)(class ir_instruction *ir, void *data),
+ void *data)
+{
+ ir_hierarchical_visitor v;
+
+ v.callback = callback;
+ v.data = data;
+
+ ir->accept(&v);
+}
diff --git a/mesalib/src/glsl/ir_hierarchical_visitor.h b/mesalib/src/glsl/ir_hierarchical_visitor.h
new file mode 100644
index 000000000..dc177f5eb
--- /dev/null
+++ b/mesalib/src/glsl/ir_hierarchical_visitor.h
@@ -0,0 +1,183 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_HIERARCHICAL_VISITOR_H
+#define IR_HIERARCHICAL_VISITOR_H
+
+/**
+ * Enumeration values returned by visit methods to guide processing
+ */
+enum ir_visitor_status {
+ visit_continue, /**< Continue visiting as normal. */
+ visit_continue_with_parent, /**< Don't visit siblings, continue w/parent. */
+ visit_stop /**< Stop visiting immediately. */
+};
+
+
+/**
+ * Base class of hierarchical visitors of IR instruction trees
+ *
+ * Hierarchical visitors differ from traditional visitors in a couple of
+ * important ways. Rather than having a single \c visit method for each
+ * subclass in the composite, there are three kinds of visit methods.
+ * Leaf-node classes have a traditional \c visit method. Internal-node
+ * classes have a \c visit_enter method, which is invoked just before
+ * processing child nodes, and a \c visit_leave method which is invoked just
+ * after processing child nodes.
+ *
+ * In addition, each visit method and the \c accept methods in the composite
+ * have a return value which guides the navigation. Any of the visit methods
+ * can choose to continue visiting the tree as normal (by returning \c
+ * visit_continue), terminate visiting any further nodes immediately (by
+ * returning \c visit_stop), or stop visiting sibling nodes (by returning \c
+ * visit_continue_with_parent).
+ *
+ * These two changes combine to allow nagivation of children to be implemented
+ * in the composite's \c accept method. The \c accept method for a leaf-node
+ * class will simply call the \c visit method, as usual, and pass its return
+ * value on. The \c accept method for internal-node classes will call the \c
+ * visit_enter method, call the \c accpet method of each child node, and,
+ * finally, call the \c visit_leave method. If any of these return a value
+ * other that \c visit_continue, the correct action must be taken.
+ *
+ * The final benefit is that the hierarchical visitor base class need not be
+ * abstract. Default implementations of every \c visit, \c visit_enter, and
+ * \c visit_leave method can be provided. By default each of these methods
+ * simply returns \c visit_continue. This allows a significant reduction in
+ * derived class code.
+ *
+ * For more information about hierarchical visitors, see:
+ *
+ * http://c2.com/cgi/wiki?HierarchicalVisitorPattern
+ * http://c2.com/cgi/wiki?HierarchicalVisitorDiscussion
+ */
+
+class ir_hierarchical_visitor {
+public:
+ ir_hierarchical_visitor();
+
+ /**
+ * \name Visit methods for leaf-node classes
+ */
+ /*@{*/
+ virtual ir_visitor_status visit(class ir_variable *);
+ virtual ir_visitor_status visit(class ir_constant *);
+ virtual ir_visitor_status visit(class ir_loop_jump *);
+
+ /**
+ * ir_dereference_variable isn't technically a leaf, but it is treated as a
+ * leaf here for a couple reasons. By not automatically visiting the one
+ * child ir_variable node from the ir_dereference_variable, ir_variable
+ * nodes can always be handled as variable declarations. Code that used
+ * non-hierarchical visitors had to set an "in a dereference" flag to
+ * determine how to handle an ir_variable. By forcing the visitor to
+ * handle the ir_variable within the ir_dereference_variable visitor, this
+ * kludge can be avoided.
+ *
+ * In addition, I can envision no use for having separate enter and leave
+ * methods. Anything that could be done in the enter and leave methods
+ * that couldn't just be done in the visit method.
+ */
+ virtual ir_visitor_status visit(class ir_dereference_variable *);
+ /*@}*/
+
+ /**
+ * \name Visit methods for internal-node classes
+ */
+ /*@{*/
+ virtual ir_visitor_status visit_enter(class ir_loop *);
+ virtual ir_visitor_status visit_leave(class ir_loop *);
+ virtual ir_visitor_status visit_enter(class ir_function_signature *);
+ virtual ir_visitor_status visit_leave(class ir_function_signature *);
+ virtual ir_visitor_status visit_enter(class ir_function *);
+ virtual ir_visitor_status visit_leave(class ir_function *);
+ virtual ir_visitor_status visit_enter(class ir_expression *);
+ virtual ir_visitor_status visit_leave(class ir_expression *);
+ virtual ir_visitor_status visit_enter(class ir_texture *);
+ virtual ir_visitor_status visit_leave(class ir_texture *);
+ virtual ir_visitor_status visit_enter(class ir_swizzle *);
+ virtual ir_visitor_status visit_leave(class ir_swizzle *);
+ virtual ir_visitor_status visit_enter(class ir_dereference_array *);
+ virtual ir_visitor_status visit_leave(class ir_dereference_array *);
+ virtual ir_visitor_status visit_enter(class ir_dereference_record *);
+ virtual ir_visitor_status visit_leave(class ir_dereference_record *);
+ virtual ir_visitor_status visit_enter(class ir_assignment *);
+ virtual ir_visitor_status visit_leave(class ir_assignment *);
+ virtual ir_visitor_status visit_enter(class ir_call *);
+ virtual ir_visitor_status visit_leave(class ir_call *);
+ virtual ir_visitor_status visit_enter(class ir_return *);
+ virtual ir_visitor_status visit_leave(class ir_return *);
+ virtual ir_visitor_status visit_enter(class ir_discard *);
+ virtual ir_visitor_status visit_leave(class ir_discard *);
+ virtual ir_visitor_status visit_enter(class ir_if *);
+ virtual ir_visitor_status visit_leave(class ir_if *);
+ /*@}*/
+
+
+ /**
+ * Utility function to process a linked list of instructions with a visitor
+ */
+ void run(struct exec_list *instructions);
+
+ /* Some visitors may need to insert new variable declarations and
+ * assignments for portions of a subtree, which means they need a
+ * pointer to the current instruction in the stream, not just their
+ * node in the tree rooted at that instruction.
+ *
+ * This is implemented by visit_list_elements -- if the visitor is
+ * not called by it, nothing good will happen.
+ */
+ class ir_instruction *base_ir;
+
+ /**
+ * Callback function that is invoked on entry to each node visited.
+ *
+ * \warning
+ * Visitor classes derived from \c ir_hierarchical_visitor \b may \b not
+ * invoke this function. This can be used, for example, to cause the
+ * callback to be invoked on every node type execpt one.
+ */
+ void (*callback)(class ir_instruction *ir, void *data);
+
+ /**
+ * Extra data parameter passed to the per-node callback function
+ */
+ void *data;
+
+ /**
+ * Currently in the LHS of an assignment?
+ *
+ * This is set and cleared by the \c ir_assignment::accept method.
+ */
+ bool in_assignee;
+};
+
+void visit_tree(ir_instruction *ir,
+ void (*callback)(class ir_instruction *ir, void *data),
+ void *data);
+
+ir_visitor_status visit_list_elements(ir_hierarchical_visitor *v, exec_list *l);
+
+#endif /* IR_HIERARCHICAL_VISITOR_H */
diff --git a/mesalib/src/glsl/ir_hv_accept.cpp b/mesalib/src/glsl/ir_hv_accept.cpp
new file mode 100644
index 000000000..be8b36a7c
--- /dev/null
+++ b/mesalib/src/glsl/ir_hv_accept.cpp
@@ -0,0 +1,378 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ir.h"
+
+/**
+ * \file ir_hv_accept.cpp
+ * Implementations of all hierarchical visitor accept methods for IR
+ * instructions.
+ */
+
+/**
+ * Process a list of nodes using a hierarchical vistor
+ *
+ * \warning
+ * This function will operate correctly if a node being processed is removed
+ * from the list. However, if nodes are added to the list after the node being
+ * processed, some of the added nodes may not be processed.
+ */
+ir_visitor_status
+visit_list_elements(ir_hierarchical_visitor *v, exec_list *l)
+{
+ ir_instruction *prev_base_ir = v->base_ir;
+
+ foreach_list_safe(n, l) {
+ ir_instruction *const ir = (ir_instruction *) n;
+ v->base_ir = ir;
+ ir_visitor_status s = ir->accept(v);
+
+ if (s != visit_continue)
+ return s;
+ }
+ v->base_ir = prev_base_ir;
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_variable::accept(ir_hierarchical_visitor *v)
+{
+ return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_loop::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = visit_list_elements(v, &this->body_instructions);
+ if (s == visit_stop)
+ return s;
+
+ if (s != visit_continue_with_parent) {
+ if (this->from) {
+ s = this->from->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+
+ if (this->to) {
+ s = this->to->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+
+ if (this->increment) {
+ s = this->increment->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+ }
+
+ return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_loop_jump::accept(ir_hierarchical_visitor *v)
+{
+ return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_function_signature::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = visit_list_elements(v, &this->parameters);
+ if (s == visit_stop)
+ return s;
+
+ s = visit_list_elements(v, &this->body);
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_function::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = visit_list_elements(v, &this->signatures);
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_expression::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ for (unsigned i = 0; i < this->get_num_operands(); i++) {
+ switch (this->operands[i]->accept(v)) {
+ case visit_continue:
+ break;
+
+ case visit_continue_with_parent:
+ // I wish for Java's labeled break-statement here.
+ goto done;
+
+ case visit_stop:
+ return s;
+ }
+ }
+
+done:
+ return v->visit_leave(this);
+}
+
+ir_visitor_status
+ir_texture::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->sampler->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->coordinate->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ if (this->projector) {
+ s = this->projector->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+
+ if (this->shadow_comparitor) {
+ s = this->shadow_comparitor->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+
+ switch (this->op) {
+ case ir_tex:
+ break;
+ case ir_txb:
+ s = this->lod_info.bias->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ break;
+ case ir_txl:
+ case ir_txf:
+ s = this->lod_info.lod->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ break;
+ case ir_txd:
+ s = this->lod_info.grad.dPdx->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->lod_info.grad.dPdy->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ break;
+ }
+
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_swizzle::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->val->accept(v);
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_dereference_variable::accept(ir_hierarchical_visitor *v)
+{
+ return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_dereference_array::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ /* The array index is not the target of the assignment, so clear the
+ * 'in_assignee' flag. Restore it after returning from the array index.
+ */
+ const bool was_in_assignee = v->in_assignee;
+ v->in_assignee = false;
+ s = this->array_index->accept(v);
+ v->in_assignee = was_in_assignee;
+
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->array->accept(v);
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_dereference_record::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->record->accept(v);
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_assignment::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ v->in_assignee = true;
+ s = this->lhs->accept(v);
+ v->in_assignee = false;
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->rhs->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ if (this->condition)
+ s = this->condition->accept(v);
+
+ return (s == visit_stop) ? s : v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_constant::accept(ir_hierarchical_visitor *v)
+{
+ return v->visit(this);
+}
+
+
+ir_visitor_status
+ir_call::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = visit_list_elements(v, &this->actual_parameters);
+ if (s == visit_stop)
+ return s;
+
+ return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_return::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ ir_rvalue *val = this->get_value();
+ if (val) {
+ s = val->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+
+ return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_discard::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ if (this->condition != NULL) {
+ s = this->condition->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+ }
+
+ return v->visit_leave(this);
+}
+
+
+ir_visitor_status
+ir_if::accept(ir_hierarchical_visitor *v)
+{
+ ir_visitor_status s = v->visit_enter(this);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ s = this->condition->accept(v);
+ if (s != visit_continue)
+ return (s == visit_continue_with_parent) ? visit_continue : s;
+
+ if (s != visit_continue_with_parent) {
+ s = visit_list_elements(v, &this->then_instructions);
+ if (s == visit_stop)
+ return s;
+ }
+
+ if (s != visit_continue_with_parent) {
+ s = visit_list_elements(v, &this->else_instructions);
+ if (s == visit_stop)
+ return s;
+ }
+
+ return v->visit_leave(this);
+}
diff --git a/mesalib/src/glsl/ir_if_simplification.cpp b/mesalib/src/glsl/ir_if_simplification.cpp
new file mode 100644
index 000000000..021615ebd
--- /dev/null
+++ b/mesalib/src/glsl/ir_if_simplification.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_if_simplification.cpp
+ *
+ * Moves constant branches of if statements out to the surrounding
+ * instruction stream.
+ */
+
+#include "ir.h"
+
+class ir_if_simplification_visitor : public ir_hierarchical_visitor {
+public:
+ ir_if_simplification_visitor()
+ {
+ this->made_progress = false;
+ }
+
+ ir_visitor_status visit_leave(ir_if *);
+
+ bool made_progress;
+};
+
+bool
+do_if_simplification(exec_list *instructions)
+{
+ ir_if_simplification_visitor v;
+
+ v.run(instructions);
+ return v.made_progress;
+}
+
+
+ir_visitor_status
+ir_if_simplification_visitor::visit_leave(ir_if *ir)
+{
+ /* FINISHME: Ideally there would be a way to note that the condition results
+ * FINISHME: in a constant before processing both of the other subtrees.
+ * FINISHME: This can probably be done with some flags, but it would take
+ * FINISHME: some work to get right.
+ */
+ ir_constant *condition_constant = ir->condition->constant_expression_value();
+ if (condition_constant) {
+ /* Move the contents of the one branch of the conditional
+ * that matters out.
+ */
+ if (condition_constant->value.b[0]) {
+ foreach_iter(exec_list_iterator, then_iter, ir->then_instructions) {
+ ir_instruction *then_ir = (ir_instruction *)then_iter.get();
+ ir->insert_before(then_ir);
+ }
+ } else {
+ foreach_iter(exec_list_iterator, else_iter, ir->else_instructions) {
+ ir_instruction *else_ir = (ir_instruction *)else_iter.get();
+ ir->insert_before(else_ir);
+ }
+ }
+ ir->remove();
+ this->made_progress = true;
+ }
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_if_to_cond_assign.cpp b/mesalib/src/glsl/ir_if_to_cond_assign.cpp
new file mode 100644
index 000000000..0b8741394
--- /dev/null
+++ b/mesalib/src/glsl/ir_if_to_cond_assign.cpp
@@ -0,0 +1,168 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_if_to_cond_assign.cpp
+ *
+ * This attempts to flatten all if statements to conditional
+ * assignments for GPUs that don't do control flow.
+ *
+ * It can't handle other control flow being inside of its block, such
+ * as calls or loops. Hopefully loop unrolling and inlining will take
+ * care of those.
+ */
+
+#include "glsl_types.h"
+#include "ir.h"
+
+class ir_if_to_cond_assign_visitor : public ir_hierarchical_visitor {
+public:
+ ir_if_to_cond_assign_visitor()
+ {
+ this->progress = false;
+ }
+
+ ir_visitor_status visit_leave(ir_if *);
+
+ bool progress;
+};
+
+bool
+do_if_to_cond_assign(exec_list *instructions)
+{
+ ir_if_to_cond_assign_visitor v;
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
+
+void
+check_control_flow(ir_instruction *ir, void *data)
+{
+ bool *found_control_flow = (bool *)data;
+ switch (ir->ir_type) {
+ case ir_type_call:
+ case ir_type_discard:
+ case ir_type_loop:
+ case ir_type_loop_jump:
+ case ir_type_return:
+ *found_control_flow = true;
+ break;
+ default:
+ break;
+ }
+}
+
+void
+move_block_to_cond_assign(void *mem_ctx,
+ ir_if *if_ir, ir_variable *cond_var, bool then)
+{
+ exec_list *instructions;
+
+ if (then) {
+ instructions = &if_ir->then_instructions;
+ } else {
+ instructions = &if_ir->else_instructions;
+ }
+
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+
+ if (ir->ir_type == ir_type_assignment) {
+ ir_assignment *assign = (ir_assignment *)ir;
+ ir_rvalue *cond_expr;
+ ir_dereference *deref = new(mem_ctx) ir_dereference_variable(cond_var);
+
+ if (then) {
+ cond_expr = deref;
+ } else {
+ cond_expr = new(mem_ctx) ir_expression(ir_unop_logic_not,
+ glsl_type::bool_type,
+ deref,
+ NULL);
+ }
+
+ if (!assign->condition) {
+ assign->condition = cond_expr;
+ } else {
+ assign->condition = new(mem_ctx) ir_expression(ir_binop_logic_and,
+ glsl_type::bool_type,
+ cond_expr,
+ assign->condition);
+ }
+ }
+
+ /* Now, move from the if block to the block surrounding it. */
+ ir->remove();
+ if_ir->insert_before(ir);
+ }
+}
+
+ir_visitor_status
+ir_if_to_cond_assign_visitor::visit_leave(ir_if *ir)
+{
+ bool found_control_flow = false;
+ ir_variable *cond_var;
+ ir_assignment *assign;
+ ir_dereference_variable *deref;
+
+ /* Check that both blocks don't contain anything we can't support. */
+ foreach_iter(exec_list_iterator, then_iter, ir->then_instructions) {
+ ir_instruction *then_ir = (ir_instruction *)then_iter.get();
+ visit_tree(then_ir, check_control_flow, &found_control_flow);
+ }
+ foreach_iter(exec_list_iterator, else_iter, ir->else_instructions) {
+ ir_instruction *else_ir = (ir_instruction *)else_iter.get();
+ visit_tree(else_ir, check_control_flow, &found_control_flow);
+ }
+ if (found_control_flow)
+ return visit_continue;
+
+ void *mem_ctx = talloc_parent(ir);
+
+ /* Store the condition to a variable so the assignment conditions are
+ * simpler.
+ */
+ cond_var = new(mem_ctx) ir_variable(glsl_type::bool_type,
+ "if_to_cond_assign_condition",
+ ir_var_temporary);
+ ir->insert_before(cond_var);
+
+ deref = new(mem_ctx) ir_dereference_variable(cond_var);
+ assign = new(mem_ctx) ir_assignment(deref,
+ ir->condition, NULL);
+ ir->insert_before(assign);
+
+ /* Now, move all of the instructions out of the if blocks, putting
+ * conditions on assignments.
+ */
+ move_block_to_cond_assign(mem_ctx, ir, cond_var, true);
+ move_block_to_cond_assign(mem_ctx, ir, cond_var, false);
+
+ ir->remove();
+
+ this->progress = true;
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_import_prototypes.cpp b/mesalib/src/glsl/ir_import_prototypes.cpp
new file mode 100644
index 000000000..066137e60
--- /dev/null
+++ b/mesalib/src/glsl/ir_import_prototypes.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_import_prototypes.cpp
+ * Import function prototypes from one IR tree into another.
+ *
+ * \author Ian Romanick
+ */
+#include <cstdio>
+#include "ir.h"
+#include "glsl_symbol_table.h"
+
+/**
+ * Visitor used to import function prototypes
+ *
+ * Normally the \c clone method of either \c ir_function or
+ * \c ir_function_signature could be used. However, we don't want a complete
+ * clone of the \c ir_function_signature. We want everything \b except the
+ * body of the function.
+ */
+class import_prototype_visitor : public ir_hierarchical_visitor {
+public:
+ /**
+ */
+ import_prototype_visitor(exec_list *list, glsl_symbol_table *symbols,
+ void *mem_ctx)
+ {
+ this->mem_ctx = mem_ctx;
+ this->list = list;
+ this->symbols = symbols;
+ this->function = NULL;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_function *ir)
+ {
+ assert(this->function == NULL);
+
+ this->function = this->symbols->get_function(ir->name);
+ if (!this->function) {
+ this->function = new(this->mem_ctx) ir_function(ir->name);
+
+ list->push_tail(this->function);
+
+ /* Add the new function to the symbol table.
+ */
+ this->symbols->add_function(this->function->name, this->function);
+ }
+ return visit_continue;
+ }
+
+ virtual ir_visitor_status visit_leave(ir_function *ir)
+ {
+ (void) ir;
+ assert(this->function != NULL);
+
+ this->function = NULL;
+ return visit_continue;
+ }
+
+ ir_visitor_status visit_enter(ir_function_signature *ir)
+ {
+ assert(this->function != NULL);
+
+ ir_function_signature *copy =
+ new(mem_ctx) ir_function_signature(ir->return_type);
+
+ copy->is_defined = false;
+ copy->is_builtin = ir->is_builtin;
+
+ /* Clone the parameter list, but NOT the body.
+ */
+ foreach_list_const(node, &ir->parameters) {
+ const ir_variable *const param = (const ir_variable *) node;
+
+ assert(const_cast<ir_variable *>(param)->as_variable() != NULL);
+
+ ir_variable *const param_copy = param->clone(mem_ctx, NULL);
+ copy->parameters.push_tail(param_copy);
+ }
+
+ this->function->add_signature(copy);
+
+ /* Do not process child nodes of the ir_function_signature. There can
+ * never be any nodes inside the ir_function_signature that we care
+ * about. Instead continue with the next sibling.
+ */
+ return visit_continue_with_parent;
+ }
+
+private:
+ exec_list *list;
+ ir_function *function;
+ glsl_symbol_table *symbols;
+ void *mem_ctx;
+};
+
+
+/**
+ * Import function prototypes from one IR tree into another
+ *
+ * \param source Source instruction stream containing functions whose
+ * prototypes are to be imported
+ * \param dest Destination instruction stream where new \c ir_function and
+ * \c ir_function_signature nodes will be stored
+ * \param symbols Symbol table where new functions will be stored
+ * \param mem_ctx talloc memory context used for new allocations
+ */
+void
+import_prototypes(const exec_list *source, exec_list *dest,
+ glsl_symbol_table *symbols, void *mem_ctx)
+{
+ import_prototype_visitor v(dest, symbols, mem_ctx);
+
+ /* Making source be const is just extra documentation.
+ */
+ v.run(const_cast<exec_list *>(source));
+}
diff --git a/mesalib/src/glsl/ir_lower_jumps.cpp b/mesalib/src/glsl/ir_lower_jumps.cpp
new file mode 100644
index 000000000..b69cc1ec3
--- /dev/null
+++ b/mesalib/src/glsl/ir_lower_jumps.cpp
@@ -0,0 +1,544 @@
+/*
+ * Copyright © 2010 Luca Barbieri
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_lower_jumps.cpp
+ */
+
+#include "glsl_types.h"
+#include <string.h>
+#include "ir.h"
+
+enum jump_strength
+{
+ strength_none,
+ strength_always_clears_execute_flag,
+ strength_continue,
+ strength_break,
+ strength_return,
+ strength_discard
+};
+
+struct block_record
+{
+ /* minimum jump strength (of lowered IR, not pre-lowering IR)
+ *
+ * If the block ends with a jump, must be the strength of the jump.
+ * Otherwise, the jump would be dead and have been deleted before)
+ *
+ * If the block doesn't end with a jump, it can be different than strength_none if all paths before it lead to some jump
+ * (e.g. an if with a return in one branch, and a break in the other, while not lowering them)
+ * Note that identical jumps are usually unified though.
+ */
+ jump_strength min_strength;
+
+ /* can anything clear the execute flag? */
+ bool may_clear_execute_flag;
+
+ block_record()
+ {
+ this->min_strength = strength_none;
+ this->may_clear_execute_flag = false;
+ }
+};
+
+struct loop_record
+{
+ ir_function_signature* signature;
+ ir_loop* loop;
+
+ /* used to avoid lowering the break used to represent lowered breaks */
+ unsigned nesting_depth;
+ bool in_if_at_the_end_of_the_loop;
+
+ bool may_set_return_flag;
+
+ ir_variable* break_flag;
+ ir_variable* execute_flag; /* cleared to emulate continue */
+
+ loop_record(ir_function_signature* p_signature = 0, ir_loop* p_loop = 0)
+ {
+ this->signature = p_signature;
+ this->loop = p_loop;
+ this->nesting_depth = 0;
+ this->in_if_at_the_end_of_the_loop = false;
+ this->may_set_return_flag = false;
+ this->break_flag = 0;
+ this->execute_flag = 0;
+ }
+
+ ir_variable* get_execute_flag()
+ {
+ /* also supported for the "function loop" */
+ if(!this->execute_flag) {
+ exec_list& list = this->loop ? this->loop->body_instructions : signature->body;
+ this->execute_flag = new(this->signature) ir_variable(glsl_type::bool_type, "execute_flag", ir_var_temporary);
+ list.push_head(new(this->signature) ir_assignment(new(this->signature) ir_dereference_variable(execute_flag), new(this->signature) ir_constant(true), 0));
+ list.push_head(this->execute_flag);
+ }
+ return this->execute_flag;
+ }
+
+ ir_variable* get_break_flag()
+ {
+ assert(this->loop);
+ if(!this->break_flag) {
+ this->break_flag = new(this->signature) ir_variable(glsl_type::bool_type, "break_flag", ir_var_temporary);
+ this->loop->insert_before(this->break_flag);
+ this->loop->insert_before(new(this->signature) ir_assignment(new(this->signature) ir_dereference_variable(break_flag), new(this->signature) ir_constant(false), 0));
+ }
+ return this->break_flag;
+ }
+};
+
+struct function_record
+{
+ ir_function_signature* signature;
+ ir_variable* return_flag; /* used to break out of all loops and then jump to the return instruction */
+ ir_variable* return_value;
+ bool is_main;
+ unsigned nesting_depth;
+
+ function_record(ir_function_signature* p_signature = 0)
+ {
+ this->signature = p_signature;
+ this->return_flag = 0;
+ this->return_value = 0;
+ this->nesting_depth = 0;
+ this->is_main = this->signature && (strcmp(this->signature->function_name(), "main") == 0);
+ }
+
+ ir_variable* get_return_flag()
+ {
+ if(!this->return_flag) {
+ this->return_flag = new(this->signature) ir_variable(glsl_type::bool_type, "return_flag", ir_var_temporary);
+ this->signature->body.push_head(new(this->signature) ir_assignment(new(this->signature) ir_dereference_variable(return_flag), new(this->signature) ir_constant(false), 0));
+ this->signature->body.push_head(this->return_flag);
+ }
+ return this->return_flag;
+ }
+
+ ir_variable* get_return_value()
+ {
+ if(!this->return_value) {
+ assert(!this->signature->return_type->is_void());
+ return_value = new(this->signature) ir_variable(this->signature->return_type, "return_value", ir_var_temporary);
+ this->signature->body.push_head(this->return_value);
+ }
+ return this->return_value;
+ }
+};
+
+struct ir_lower_jumps_visitor : public ir_control_flow_visitor {
+ bool progress;
+
+ struct function_record function;
+ struct loop_record loop;
+ struct block_record block;
+
+ bool pull_out_jumps;
+ bool lower_continue;
+ bool lower_break;
+ bool lower_sub_return;
+ bool lower_main_return;
+
+ ir_lower_jumps_visitor()
+ {
+ this->progress = false;
+ }
+
+ void truncate_after_instruction(exec_node *ir)
+ {
+ if (!ir)
+ return;
+
+ while (!ir->get_next()->is_tail_sentinel()) {
+ ((ir_instruction *)ir->get_next())->remove();
+ this->progress = true;
+ }
+ }
+
+ void move_outer_block_inside(ir_instruction *ir, exec_list *inner_block)
+ {
+ while (!ir->get_next()->is_tail_sentinel()) {
+ ir_instruction *move_ir = (ir_instruction *)ir->get_next();
+
+ move_ir->remove();
+ inner_block->push_tail(move_ir);
+ }
+ }
+
+ virtual void visit(class ir_loop_jump * ir)
+ {
+ truncate_after_instruction(ir);
+ this->block.min_strength = ir->is_break() ? strength_break : strength_continue;
+ }
+
+ virtual void visit(class ir_return * ir)
+ {
+ truncate_after_instruction(ir);
+ this->block.min_strength = strength_return;
+ }
+
+ virtual void visit(class ir_discard * ir)
+ {
+ truncate_after_instruction(ir);
+ this->block.min_strength = strength_discard;
+ }
+
+ enum jump_strength get_jump_strength(ir_instruction* ir)
+ {
+ if(!ir)
+ return strength_none;
+ else if(ir->ir_type == ir_type_loop_jump) {
+ if(((ir_loop_jump*)ir)->is_break())
+ return strength_break;
+ else
+ return strength_continue;
+ } else if(ir->ir_type == ir_type_return)
+ return strength_return;
+ else if(ir->ir_type == ir_type_discard)
+ return strength_discard;
+ else
+ return strength_none;
+ }
+
+ bool should_lower_jump(ir_jump* ir)
+ {
+ unsigned strength = get_jump_strength(ir);
+ bool lower;
+ switch(strength)
+ {
+ case strength_none:
+ lower = false; /* don't change this, code relies on it */
+ break;
+ case strength_continue:
+ lower = lower_continue;
+ break;
+ case strength_break:
+ assert(this->loop.loop);
+ /* never lower "canonical break" */
+ if(ir->get_next()->is_tail_sentinel() && (this->loop.nesting_depth == 0
+ || (this->loop.nesting_depth == 1 && this->loop.in_if_at_the_end_of_the_loop)))
+ lower = false;
+ else
+ lower = lower_break;
+ break;
+ case strength_return:
+ /* never lower return at the end of a this->function */
+ if(this->function.nesting_depth == 0 && ir->get_next()->is_tail_sentinel())
+ lower = false;
+ else if (this->function.is_main)
+ lower = lower_main_return;
+ else
+ lower = lower_sub_return;
+ break;
+ case strength_discard:
+ lower = false; /* probably nothing needs this lowered */
+ break;
+ }
+ return lower;
+ }
+
+ block_record visit_block(exec_list* list)
+ {
+ block_record saved_block = this->block;
+ this->block = block_record();
+ visit_exec_list(list, this);
+ block_record ret = this->block;
+ this->block = saved_block;
+ return ret;
+ }
+
+ virtual void visit(ir_if *ir)
+ {
+ if(this->loop.nesting_depth == 0 && ir->get_next()->is_tail_sentinel())
+ this->loop.in_if_at_the_end_of_the_loop = true;
+
+ ++this->function.nesting_depth;
+ ++this->loop.nesting_depth;
+
+ block_record block_records[2];
+ ir_jump* jumps[2];
+
+ block_records[0] = visit_block(&ir->then_instructions);
+ block_records[1] = visit_block(&ir->else_instructions);
+
+retry: /* we get here if we put code after the if inside a branch */
+ for(unsigned i = 0; i < 2; ++i) {
+ exec_list& list = i ? ir->else_instructions : ir->then_instructions;
+ jumps[i] = 0;
+ if(!list.is_empty() && get_jump_strength((ir_instruction*)list.get_tail()))
+ jumps[i] = (ir_jump*)list.get_tail();
+ }
+
+ for(;;) {
+ jump_strength jump_strengths[2];
+
+ for(unsigned i = 0; i < 2; ++i) {
+ if(jumps[i]) {
+ jump_strengths[i] = block_records[i].min_strength;
+ assert(jump_strengths[i] == get_jump_strength(jumps[i]));
+ } else
+ jump_strengths[i] = strength_none;
+ }
+
+ /* move both jumps out if possible */
+ if(pull_out_jumps && jump_strengths[0] == jump_strengths[1]) {
+ bool unify = true;
+ if(jump_strengths[0] == strength_continue)
+ ir->insert_after(new(ir) ir_loop_jump(ir_loop_jump::jump_continue));
+ else if(jump_strengths[0] == strength_break)
+ ir->insert_after(new(ir) ir_loop_jump(ir_loop_jump::jump_break));
+ /* FINISHME: unify returns with identical expressions */
+ else if(jump_strengths[0] == strength_return && this->function.signature->return_type->is_void())
+ ir->insert_after(new(ir) ir_return(NULL));
+ /* FINISHME: unify discards */
+ else
+ unify = false;
+
+ if(unify) {
+ jumps[0]->remove();
+ jumps[1]->remove();
+ this->progress = true;
+
+ jumps[0] = 0;
+ jumps[1] = 0;
+ block_records[0].min_strength = strength_none;
+ block_records[1].min_strength = strength_none;
+ break;
+ }
+ }
+
+ /* lower a jump: if both need to lowered, start with the strongest one, so that
+ * we might later unify the lowered version with the other one
+ */
+ bool should_lower[2];
+ for(unsigned i = 0; i < 2; ++i)
+ should_lower[i] = should_lower_jump(jumps[i]);
+
+ int lower;
+ if(should_lower[1] && should_lower[0])
+ lower = jump_strengths[1] > jump_strengths[0];
+ else if(should_lower[0])
+ lower = 0;
+ else if(should_lower[1])
+ lower = 1;
+ else
+ break;
+
+ if(jump_strengths[lower] == strength_return) {
+ ir_variable* return_flag = this->function.get_return_flag();
+ if(!this->function.signature->return_type->is_void()) {
+ ir_variable* return_value = this->function.get_return_value();
+ jumps[lower]->insert_before(new(ir) ir_assignment(new (ir) ir_dereference_variable(return_value), ((ir_return*)jumps[lower])->value, NULL));
+ }
+ jumps[lower]->insert_before(new(ir) ir_assignment(new (ir) ir_dereference_variable(return_flag), new (ir) ir_constant(true), NULL));
+ this->loop.may_set_return_flag = true;
+ if(this->loop.loop) {
+ ir_loop_jump* lowered = 0;
+ lowered = new(ir) ir_loop_jump(ir_loop_jump::jump_break);
+ block_records[lower].min_strength = strength_break;
+ jumps[lower]->replace_with(lowered);
+ jumps[lower] = lowered;
+ } else
+ goto lower_continue;
+ this->progress = true;
+ } else if(jump_strengths[lower] == strength_break) {
+ /* We can't lower to an actual continue because that would execute the increment.
+ *
+ * In the lowered code, we instead put the break check between the this->loop body and the increment,
+ * which is impossible with a real continue as defined by the GLSL IR currently.
+ *
+ * Smarter options (such as undoing the increment) are possible but it's not worth implementing them,
+ * because if break is lowered, continue is almost surely lowered too.
+ */
+ jumps[lower]->insert_before(new(ir) ir_assignment(new (ir) ir_dereference_variable(this->loop.get_break_flag()), new (ir) ir_constant(true), 0));
+ goto lower_continue;
+ } else if(jump_strengths[lower] == strength_continue) {
+lower_continue:
+ ir_variable* execute_flag = this->loop.get_execute_flag();
+ jumps[lower]->replace_with(new(ir) ir_assignment(new (ir) ir_dereference_variable(execute_flag), new (ir) ir_constant(false), 0));
+ jumps[lower] = 0;
+ block_records[lower].min_strength = strength_always_clears_execute_flag;
+ block_records[lower].may_clear_execute_flag = true;
+ this->progress = true;
+ break;
+ }
+ }
+
+ /* move out a jump out if possible */
+ if(pull_out_jumps) {
+ int move_out = -1;
+ if(jumps[0] && block_records[1].min_strength >= strength_continue)
+ move_out = 0;
+ else if(jumps[1] && block_records[0].min_strength >= strength_continue)
+ move_out = 1;
+
+ if(move_out >= 0)
+ {
+ jumps[move_out]->remove();
+ ir->insert_after(jumps[move_out]);
+ jumps[move_out] = 0;
+ block_records[move_out].min_strength = strength_none;
+ this->progress = true;
+ }
+ }
+
+ if(block_records[0].min_strength < block_records[1].min_strength)
+ this->block.min_strength = block_records[0].min_strength;
+ else
+ this->block.min_strength = block_records[1].min_strength;
+ this->block.may_clear_execute_flag = this->block.may_clear_execute_flag || block_records[0].may_clear_execute_flag || block_records[1].may_clear_execute_flag;
+
+ if(this->block.min_strength)
+ truncate_after_instruction(ir);
+ else if(this->block.may_clear_execute_flag)
+ {
+ int move_into = -1;
+ if(block_records[0].min_strength && !block_records[1].may_clear_execute_flag)
+ move_into = 1;
+ else if(block_records[1].min_strength && !block_records[0].may_clear_execute_flag)
+ move_into = 0;
+
+ if(move_into >= 0) {
+ assert(!block_records[move_into].min_strength && !block_records[move_into].may_clear_execute_flag); /* otherwise, we just truncated */
+
+ exec_list* list = move_into ? &ir->else_instructions : &ir->then_instructions;
+ exec_node* next = ir->get_next();
+ if(!next->is_tail_sentinel()) {
+ move_outer_block_inside(ir, list);
+
+ exec_list list;
+ list.head = next;
+ block_records[move_into] = visit_block(&list);
+
+ this->progress = true;
+ goto retry;
+ }
+ } else {
+ ir_instruction* ir_after;
+ for(ir_after = (ir_instruction*)ir->get_next(); !ir_after->is_tail_sentinel();)
+ {
+ ir_if* ir_if = ir_after->as_if();
+ if(ir_if && ir_if->else_instructions.is_empty()) {
+ ir_dereference_variable* ir_if_cond_deref = ir_if->condition->as_dereference_variable();
+ if(ir_if_cond_deref && ir_if_cond_deref->var == this->loop.execute_flag) {
+ ir_instruction* ir_next = (ir_instruction*)ir_after->get_next();
+ ir_after->insert_before(&ir_if->then_instructions);
+ ir_after->remove();
+ ir_after = ir_next;
+ continue;
+ }
+ }
+ ir_after = (ir_instruction*)ir_after->get_next();
+
+ /* only set this if we find any unprotected instruction */
+ this->progress = true;
+ }
+
+ if(!ir->get_next()->is_tail_sentinel()) {
+ assert(this->loop.execute_flag);
+ ir_if* if_execute = new(ir) ir_if(new(ir) ir_dereference_variable(this->loop.execute_flag));
+ move_outer_block_inside(ir, &if_execute->then_instructions);
+ ir->insert_after(if_execute);
+ }
+ }
+ }
+ --this->loop.nesting_depth;
+ --this->function.nesting_depth;
+ }
+
+ virtual void visit(ir_loop *ir)
+ {
+ ++this->function.nesting_depth;
+ loop_record saved_loop = this->loop;
+ this->loop = loop_record(this->function.signature, ir);
+
+ block_record body = visit_block(&ir->body_instructions);
+
+ if(body.min_strength >= strength_break) {
+ /* FINISHME: turn the this->loop into an if, or replace it with its body */
+ }
+
+ if(this->loop.break_flag) {
+ ir_if* break_if = new(ir) ir_if(new(ir) ir_dereference_variable(this->loop.break_flag));
+ break_if->then_instructions.push_tail(new(ir) ir_loop_jump(ir_loop_jump::jump_break));
+ ir->body_instructions.push_tail(break_if);
+ }
+
+ if(this->loop.may_set_return_flag) {
+ assert(this->function.return_flag);
+ ir_if* return_if = new(ir) ir_if(new(ir) ir_dereference_variable(this->function.return_flag));
+ return_if->then_instructions.push_tail(new(ir) ir_loop_jump(saved_loop.loop ? ir_loop_jump::jump_break : ir_loop_jump::jump_continue));
+ ir->insert_after(return_if);
+ }
+
+ this->loop = saved_loop;
+ --this->function.nesting_depth;
+ }
+
+ virtual void visit(ir_function_signature *ir)
+ {
+ /* these are not strictly necessary */
+ assert(!this->function.signature);
+ assert(!this->loop.loop);
+
+ function_record saved_function = this->function;
+ loop_record saved_loop = this->loop;
+ this->function = function_record(ir);
+ this->loop = loop_record(ir);
+
+ assert(!this->loop.loop);
+ visit_block(&ir->body);
+
+ if(this->function.return_value)
+ ir->body.push_tail(new(ir) ir_return(new (ir) ir_dereference_variable(this->function.return_value)));
+
+ this->loop = saved_loop;
+ this->function = saved_function;
+ }
+
+ virtual void visit(class ir_function * ir)
+ {
+ visit_block(&ir->signatures);
+ }
+};
+
+bool
+do_lower_jumps(exec_list *instructions, bool pull_out_jumps, bool lower_sub_return, bool lower_main_return, bool lower_continue, bool lower_break)
+{
+ ir_lower_jumps_visitor v;
+ v.pull_out_jumps = pull_out_jumps;
+ v.lower_continue = lower_continue;
+ v.lower_break = lower_break;
+ v.lower_sub_return = lower_sub_return;
+ v.lower_main_return = lower_main_return;
+
+ do {
+ v.progress = false;
+ visit_exec_list(instructions, &v);
+ } while (v.progress);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_mat_op_to_vec.cpp b/mesalib/src/glsl/ir_mat_op_to_vec.cpp
new file mode 100644
index 000000000..244fe4892
--- /dev/null
+++ b/mesalib/src/glsl/ir_mat_op_to_vec.cpp
@@ -0,0 +1,488 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_mat_op_to_vec.cpp
+ *
+ * Breaks matrix operation expressions down to a series of vector operations.
+ *
+ * Generally this is how we have to codegen matrix operations for a
+ * GPU, so this gives us the chance to constant fold operations on a
+ * column or row.
+ */
+
+#include "ir.h"
+#include "ir_expression_flattening.h"
+#include "glsl_types.h"
+
+class ir_mat_op_to_vec_visitor : public ir_hierarchical_visitor {
+public:
+ ir_mat_op_to_vec_visitor()
+ {
+ this->made_progress = false;
+ this->mem_ctx = NULL;
+ }
+
+ ir_visitor_status visit_leave(ir_assignment *);
+
+ ir_dereference *get_column(ir_variable *var, int col);
+ ir_rvalue *get_element(ir_variable *var, int col, int row);
+
+ void do_mul_mat_mat(ir_variable *result_var,
+ ir_variable *a_var, ir_variable *b_var);
+ void do_mul_mat_vec(ir_variable *result_var,
+ ir_variable *a_var, ir_variable *b_var);
+ void do_mul_vec_mat(ir_variable *result_var,
+ ir_variable *a_var, ir_variable *b_var);
+ void do_mul_mat_scalar(ir_variable *result_var,
+ ir_variable *a_var, ir_variable *b_var);
+ void do_equal_mat_mat(ir_variable *result_var, ir_variable *a_var,
+ ir_variable *b_var, bool test_equal);
+
+ void *mem_ctx;
+ bool made_progress;
+};
+
+static bool
+mat_op_to_vec_predicate(ir_instruction *ir)
+{
+ ir_expression *expr = ir->as_expression();
+ unsigned int i;
+
+ if (!expr)
+ return false;
+
+ for (i = 0; i < expr->get_num_operands(); i++) {
+ if (expr->operands[i]->type->is_matrix())
+ return true;
+ }
+
+ return false;
+}
+
+bool
+do_mat_op_to_vec(exec_list *instructions)
+{
+ ir_mat_op_to_vec_visitor v;
+
+ /* Pull out any matrix expression to a separate assignment to a
+ * temp. This will make our handling of the breakdown to
+ * operations on the matrix's vector components much easier.
+ */
+ do_expression_flattening(instructions, mat_op_to_vec_predicate);
+
+ visit_list_elements(&v, instructions);
+
+ return v.made_progress;
+}
+
+ir_rvalue *
+ir_mat_op_to_vec_visitor::get_element(ir_variable *var, int col, int row)
+{
+ ir_dereference *deref;
+
+ deref = new(mem_ctx) ir_dereference_variable(var);
+
+ if (var->type->is_matrix()) {
+ deref = new(mem_ctx) ir_dereference_array(var,
+ new(mem_ctx) ir_constant(col));
+ } else {
+ assert(col == 0);
+ }
+
+ return new(mem_ctx) ir_swizzle(deref, row, 0, 0, 0, 1);
+}
+
+ir_dereference *
+ir_mat_op_to_vec_visitor::get_column(ir_variable *var, int row)
+{
+ ir_dereference *deref;
+
+ if (!var->type->is_matrix()) {
+ deref = new(mem_ctx) ir_dereference_variable(var);
+ } else {
+ deref = new(mem_ctx) ir_dereference_variable(var);
+ deref = new(mem_ctx) ir_dereference_array(deref,
+ new(mem_ctx) ir_constant(row));
+ }
+
+ return deref;
+}
+
+void
+ir_mat_op_to_vec_visitor::do_mul_mat_mat(ir_variable *result_var,
+ ir_variable *a_var,
+ ir_variable *b_var)
+{
+ int b_col, i;
+ ir_assignment *assign;
+ ir_expression *expr;
+
+ for (b_col = 0; b_col < b_var->type->matrix_columns; b_col++) {
+ ir_rvalue *a = get_column(a_var, 0);
+ ir_rvalue *b = get_element(b_var, b_col, 0);
+
+ /* first column */
+ expr = new(mem_ctx) ir_expression(ir_binop_mul,
+ a->type,
+ a,
+ b);
+
+ /* following columns */
+ for (i = 1; i < a_var->type->matrix_columns; i++) {
+ ir_expression *mul_expr;
+
+ a = get_column(a_var, i);
+ b = get_element(b_var, b_col, i);
+
+ mul_expr = new(mem_ctx) ir_expression(ir_binop_mul,
+ a->type,
+ a,
+ b);
+ expr = new(mem_ctx) ir_expression(ir_binop_add,
+ a->type,
+ expr,
+ mul_expr);
+ }
+
+ ir_rvalue *result = get_column(result_var, b_col);
+ assign = new(mem_ctx) ir_assignment(result,
+ expr,
+ NULL);
+ base_ir->insert_before(assign);
+ }
+}
+
+void
+ir_mat_op_to_vec_visitor::do_mul_mat_vec(ir_variable *result_var,
+ ir_variable *a_var,
+ ir_variable *b_var)
+{
+ int i;
+ ir_rvalue *a = get_column(a_var, 0);
+ ir_rvalue *b = get_element(b_var, 0, 0);
+ ir_assignment *assign;
+ ir_expression *expr;
+
+ /* first column */
+ expr = new(mem_ctx) ir_expression(ir_binop_mul,
+ result_var->type,
+ a,
+ b);
+
+ /* following columns */
+ for (i = 1; i < a_var->type->matrix_columns; i++) {
+ ir_expression *mul_expr;
+
+ a = get_column(a_var, i);
+ b = get_element(b_var, 0, i);
+
+ mul_expr = new(mem_ctx) ir_expression(ir_binop_mul,
+ result_var->type,
+ a,
+ b);
+ expr = new(mem_ctx) ir_expression(ir_binop_add,
+ result_var->type,
+ expr,
+ mul_expr);
+ }
+
+ ir_rvalue *result = new(mem_ctx) ir_dereference_variable(result_var);
+ assign = new(mem_ctx) ir_assignment(result,
+ expr,
+ NULL);
+ base_ir->insert_before(assign);
+}
+
+void
+ir_mat_op_to_vec_visitor::do_mul_vec_mat(ir_variable *result_var,
+ ir_variable *a_var,
+ ir_variable *b_var)
+{
+ int i;
+
+ for (i = 0; i < b_var->type->matrix_columns; i++) {
+ ir_rvalue *a = new(mem_ctx) ir_dereference_variable(a_var);
+ ir_rvalue *b = get_column(b_var, i);
+ ir_rvalue *result;
+ ir_expression *column_expr;
+ ir_assignment *column_assign;
+
+ result = new(mem_ctx) ir_dereference_variable(result_var);
+ result = new(mem_ctx) ir_swizzle(result, i, 0, 0, 0, 1);
+
+ column_expr = new(mem_ctx) ir_expression(ir_binop_dot,
+ result->type,
+ a,
+ b);
+
+ column_assign = new(mem_ctx) ir_assignment(result,
+ column_expr,
+ NULL);
+ base_ir->insert_before(column_assign);
+ }
+}
+
+void
+ir_mat_op_to_vec_visitor::do_mul_mat_scalar(ir_variable *result_var,
+ ir_variable *a_var,
+ ir_variable *b_var)
+{
+ int i;
+
+ for (i = 0; i < a_var->type->matrix_columns; i++) {
+ ir_rvalue *a = get_column(a_var, i);
+ ir_rvalue *b = new(mem_ctx) ir_dereference_variable(b_var);
+ ir_rvalue *result = get_column(result_var, i);
+ ir_expression *column_expr;
+ ir_assignment *column_assign;
+
+ column_expr = new(mem_ctx) ir_expression(ir_binop_mul,
+ result->type,
+ a,
+ b);
+
+ column_assign = new(mem_ctx) ir_assignment(result,
+ column_expr,
+ NULL);
+ base_ir->insert_before(column_assign);
+ }
+}
+
+void
+ir_mat_op_to_vec_visitor::do_equal_mat_mat(ir_variable *result_var,
+ ir_variable *a_var,
+ ir_variable *b_var,
+ bool test_equal)
+{
+ /* This essentially implements the following GLSL:
+ *
+ * bool equal(mat4 a, mat4 b)
+ * {
+ * return !any(bvec4(a[0] != b[0],
+ * a[1] != b[1],
+ * a[2] != b[2],
+ * a[3] != b[3]);
+ * }
+ *
+ * bool nequal(mat4 a, mat4 b)
+ * {
+ * return any(bvec4(a[0] != b[0],
+ * a[1] != b[1],
+ * a[2] != b[2],
+ * a[3] != b[3]);
+ * }
+ */
+ const unsigned columns = a_var->type->matrix_columns;
+ const glsl_type *const bvec_type =
+ glsl_type::get_instance(GLSL_TYPE_BOOL, columns, 1);
+
+ ir_variable *const tmp_bvec =
+ new(this->mem_ctx) ir_variable(bvec_type, "mat_cmp_bvec",
+ ir_var_temporary);
+ this->base_ir->insert_before(tmp_bvec);
+
+ for (unsigned i = 0; i < columns; i++) {
+ ir_dereference *const op0 = get_column(a_var, i);
+ ir_dereference *const op1 = get_column(b_var, i);
+
+ ir_expression *const cmp =
+ new(this->mem_ctx) ir_expression(ir_binop_any_nequal,
+ glsl_type::bool_type, op0, op1);
+
+ ir_dereference *const lhs =
+ new(this->mem_ctx) ir_dereference_variable(tmp_bvec);
+
+ ir_assignment *const assign =
+ new(this->mem_ctx) ir_assignment(lhs, cmp, NULL, (1U << i));
+
+ this->base_ir->insert_before(assign);
+ }
+
+ ir_rvalue *const val =
+ new(this->mem_ctx) ir_dereference_variable(tmp_bvec);
+
+ ir_expression *any =
+ new(this->mem_ctx) ir_expression(ir_unop_any, glsl_type::bool_type,
+ val, NULL);
+
+ if (test_equal)
+ any = new(this->mem_ctx) ir_expression(ir_unop_logic_not,
+ glsl_type::bool_type,
+ any, NULL);
+
+ ir_rvalue *const result =
+ new(this->mem_ctx) ir_dereference_variable(result_var);
+
+ ir_assignment *const assign =
+ new(mem_ctx) ir_assignment(result, any, NULL);
+ base_ir->insert_before(assign);
+}
+
+static bool
+has_matrix_operand(const ir_expression *expr, unsigned &columns)
+{
+ for (unsigned i = 0; i < expr->get_num_operands(); i++) {
+ if (expr->operands[i]->type->is_matrix()) {
+ columns = expr->operands[i]->type->matrix_columns;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+ir_visitor_status
+ir_mat_op_to_vec_visitor::visit_leave(ir_assignment *orig_assign)
+{
+ ir_expression *orig_expr = orig_assign->rhs->as_expression();
+ unsigned int i, matrix_columns = 1;
+ ir_variable *op_var[2];
+
+ if (!orig_expr)
+ return visit_continue;
+
+ if (!has_matrix_operand(orig_expr, matrix_columns))
+ return visit_continue;
+
+ mem_ctx = talloc_parent(orig_assign);
+
+ ir_dereference_variable *lhs_deref =
+ orig_assign->lhs->as_dereference_variable();
+ assert(lhs_deref);
+
+ ir_variable *result_var = lhs_deref->var;
+
+ /* Store the expression operands in temps so we can use them
+ * multiple times.
+ */
+ for (i = 0; i < orig_expr->get_num_operands(); i++) {
+ ir_assignment *assign;
+
+ op_var[i] = new(mem_ctx) ir_variable(orig_expr->operands[i]->type,
+ "mat_op_to_vec",
+ ir_var_temporary);
+ base_ir->insert_before(op_var[i]);
+
+ lhs_deref = new(mem_ctx) ir_dereference_variable(op_var[i]);
+ assign = new(mem_ctx) ir_assignment(lhs_deref,
+ orig_expr->operands[i],
+ NULL);
+ base_ir->insert_before(assign);
+ }
+
+ /* OK, time to break down this matrix operation. */
+ switch (orig_expr->operation) {
+ case ir_unop_neg: {
+ const unsigned mask = (1U << result_var->type->vector_elements) - 1;
+
+ /* Apply the operation to each column.*/
+ for (i = 0; i < matrix_columns; i++) {
+ ir_rvalue *op0 = get_column(op_var[0], i);
+ ir_dereference *result = get_column(result_var, i);
+ ir_expression *column_expr;
+ ir_assignment *column_assign;
+
+ column_expr = new(mem_ctx) ir_expression(orig_expr->operation,
+ result->type,
+ op0,
+ NULL);
+
+ column_assign = new(mem_ctx) ir_assignment(result,
+ column_expr,
+ NULL,
+ mask);
+ assert(column_assign->write_mask != 0);
+ base_ir->insert_before(column_assign);
+ }
+ break;
+ }
+ case ir_binop_add:
+ case ir_binop_sub:
+ case ir_binop_div:
+ case ir_binop_mod: {
+ const unsigned mask = (1U << result_var->type->vector_elements) - 1;
+
+ /* For most operations, the matrix version is just going
+ * column-wise through and applying the operation to each column
+ * if available.
+ */
+ for (i = 0; i < matrix_columns; i++) {
+ ir_rvalue *op0 = get_column(op_var[0], i);
+ ir_rvalue *op1 = get_column(op_var[1], i);
+ ir_dereference *result = get_column(result_var, i);
+ ir_expression *column_expr;
+ ir_assignment *column_assign;
+
+ column_expr = new(mem_ctx) ir_expression(orig_expr->operation,
+ result->type,
+ op0,
+ op1);
+
+ column_assign = new(mem_ctx) ir_assignment(result,
+ column_expr,
+ NULL,
+ mask);
+ assert(column_assign->write_mask != 0);
+ base_ir->insert_before(column_assign);
+ }
+ break;
+ }
+ case ir_binop_mul:
+ if (op_var[0]->type->is_matrix()) {
+ if (op_var[1]->type->is_matrix()) {
+ do_mul_mat_mat(result_var, op_var[0], op_var[1]);
+ } else if (op_var[1]->type->is_vector()) {
+ do_mul_mat_vec(result_var, op_var[0], op_var[1]);
+ } else {
+ assert(op_var[1]->type->is_scalar());
+ do_mul_mat_scalar(result_var, op_var[0], op_var[1]);
+ }
+ } else {
+ assert(op_var[1]->type->is_matrix());
+ if (op_var[0]->type->is_vector()) {
+ do_mul_vec_mat(result_var, op_var[0], op_var[1]);
+ } else {
+ assert(op_var[0]->type->is_scalar());
+ do_mul_mat_scalar(result_var, op_var[1], op_var[0]);
+ }
+ }
+ break;
+
+ case ir_binop_all_equal:
+ case ir_binop_any_nequal:
+ do_equal_mat_mat(result_var, op_var[1], op_var[0],
+ (orig_expr->operation == ir_binop_all_equal));
+ break;
+
+ default:
+ printf("FINISHME: Handle matrix operation for %s\n",
+ orig_expr->operator_string());
+ abort();
+ }
+ orig_assign->remove();
+ this->made_progress = true;
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_mod_to_fract.cpp b/mesalib/src/glsl/ir_mod_to_fract.cpp
new file mode 100644
index 000000000..c82a1f64f
--- /dev/null
+++ b/mesalib/src/glsl/ir_mod_to_fract.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_mod_to_fract.cpp
+ *
+ * Breaks an ir_unop_mod expression down to (op1 * fract(op0 / op1))
+ *
+ * Many GPUs don't have a MOD instruction (945 and 965 included), and
+ * if we have to break it down like this anyway, it gives an
+ * opportunity to do things like constant fold the (1.0 / op1) easily.
+ */
+
+#include "ir.h"
+
+class ir_mod_to_fract_visitor : public ir_hierarchical_visitor {
+public:
+ ir_mod_to_fract_visitor()
+ {
+ this->made_progress = false;
+ }
+
+ ir_visitor_status visit_leave(ir_expression *);
+
+ bool made_progress;
+};
+
+bool
+do_mod_to_fract(exec_list *instructions)
+{
+ ir_mod_to_fract_visitor v;
+
+ visit_list_elements(&v, instructions);
+ return v.made_progress;
+}
+
+ir_visitor_status
+ir_mod_to_fract_visitor::visit_leave(ir_expression *ir)
+{
+ if (ir->operation != ir_binop_mod)
+ return visit_continue;
+
+ ir_variable *temp = new(ir) ir_variable(ir->operands[1]->type, "mod_b",
+ ir_var_temporary);
+ this->base_ir->insert_before(temp);
+
+ ir_assignment *assign;
+ ir_rvalue *expr;
+
+ assign = new(ir) ir_assignment(new(ir) ir_dereference_variable(temp),
+ ir->operands[1], NULL);
+ this->base_ir->insert_before(assign);
+
+ expr = new(ir) ir_expression(ir_binop_div,
+ ir->operands[0]->type,
+ ir->operands[0],
+ new(ir) ir_dereference_variable(temp));
+
+ expr = new(ir) ir_expression(ir_unop_fract,
+ ir->operands[0]->type,
+ expr,
+ NULL);
+
+ ir->operation = ir_binop_mul;
+ ir->operands[0] = new(ir) ir_dereference_variable(temp);
+ ir->operands[1] = expr;
+ this->made_progress = true;
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_noop_swizzle.cpp b/mesalib/src/glsl/ir_noop_swizzle.cpp
new file mode 100644
index 000000000..0403dfa4e
--- /dev/null
+++ b/mesalib/src/glsl/ir_noop_swizzle.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_noop_swizzle.cpp
+ *
+ * If a swizzle doesn't change the order or count of components, then
+ * remove the swizzle so that other optimization passes see the value
+ * behind it.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_print_visitor.h"
+#include "glsl_types.h"
+
+class ir_noop_swizzle_visitor : public ir_rvalue_visitor {
+public:
+ ir_noop_swizzle_visitor()
+ {
+ this->progress = false;
+ }
+
+ void handle_rvalue(ir_rvalue **rvalue);
+ bool progress;
+};
+
+void
+ir_noop_swizzle_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+ if (!*rvalue)
+ return;
+
+ ir_swizzle *swiz = (*rvalue)->as_swizzle();
+ if (!swiz || swiz->type != swiz->val->type)
+ return;
+
+ int elems = swiz->val->type->vector_elements;
+ if (swiz->mask.x != 0)
+ return;
+ if (elems >= 2 && swiz->mask.y != 1)
+ return;
+ if (elems >= 3 && swiz->mask.z != 2)
+ return;
+ if (elems >= 4 && swiz->mask.w != 3)
+ return;
+
+ this->progress = true;
+ *rvalue = swiz->val;
+}
+
+bool
+do_noop_swizzle(exec_list *instructions)
+{
+ ir_noop_swizzle_visitor v;
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_optimization.h b/mesalib/src/glsl/ir_optimization.h
new file mode 100644
index 000000000..6a37e167f
--- /dev/null
+++ b/mesalib/src/glsl/ir_optimization.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file ir_optimization.h
+ *
+ * Prototypes for optimization passes to be called by the compiler and drivers.
+ */
+
+bool do_common_optimization(exec_list *ir, bool linked, unsigned max_unroll_iterations);
+
+bool do_algebraic(exec_list *instructions);
+bool do_constant_folding(exec_list *instructions);
+bool do_constant_variable(exec_list *instructions);
+bool do_constant_variable_unlinked(exec_list *instructions);
+bool do_copy_propagation(exec_list *instructions);
+bool do_constant_propagation(exec_list *instructions);
+bool do_dead_code(exec_list *instructions);
+bool do_dead_code_local(exec_list *instructions);
+bool do_dead_code_unlinked(exec_list *instructions);
+bool do_dead_functions(exec_list *instructions);
+bool do_div_to_mul_rcp(exec_list *instructions);
+bool do_explog_to_explog2(exec_list *instructions);
+bool do_function_inlining(exec_list *instructions);
+bool do_lower_jumps(exec_list *instructions, bool pull_out_jumps = true, bool lower_sub_return = true, bool lower_main_return = false, bool lower_continue = false, bool lower_break = false);
+bool do_if_simplification(exec_list *instructions);
+bool do_if_to_cond_assign(exec_list *instructions);
+bool do_mat_op_to_vec(exec_list *instructions);
+bool do_mod_to_fract(exec_list *instructions);
+bool do_noop_swizzle(exec_list *instructions);
+bool do_structure_splitting(exec_list *instructions);
+bool do_sub_to_add_neg(exec_list *instructions);
+bool do_swizzle_swizzle(exec_list *instructions);
+bool do_tree_grafting(exec_list *instructions);
+bool do_vec_index_to_cond_assign(exec_list *instructions);
+bool do_vec_index_to_swizzle(exec_list *instructions);
+bool lower_noise(exec_list *instructions);
+bool lower_variable_index_to_cond_assign(exec_list *instructions,
+ bool lower_input, bool lower_output, bool lower_temp, bool lower_uniform);
+bool optimize_redundant_jumps(exec_list *instructions);
diff --git a/mesalib/src/glsl/ir_print_visitor.cpp b/mesalib/src/glsl/ir_print_visitor.cpp
new file mode 100644
index 000000000..5c19db132
--- /dev/null
+++ b/mesalib/src/glsl/ir_print_visitor.cpp
@@ -0,0 +1,465 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ir_print_visitor.h"
+#include "glsl_types.h"
+#include "glsl_parser_extras.h"
+
+static void print_type(const glsl_type *t);
+
+void
+ir_instruction::print(void) const
+{
+ ir_instruction *deconsted = const_cast<ir_instruction *>(this);
+
+ ir_print_visitor v;
+ deconsted->accept(&v);
+}
+
+void
+_mesa_print_ir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ if (state) {
+ for (unsigned i = 0; i < state->num_user_structures; i++) {
+ const glsl_type *const s = state->user_structures[i];
+
+ printf("(structure (%s) (%s@%p) (%u) (\n",
+ s->name, s->name, (void *) s, s->length);
+
+ for (unsigned j = 0; j < s->length; j++) {
+ printf("\t((");
+ print_type(s->fields.structure[j].type);
+ printf(")(%s))\n", s->fields.structure[j].name);
+ }
+
+ printf(")\n");
+ }
+ }
+
+ printf("(\n");
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+ ir->print();
+ if (ir->ir_type != ir_type_function)
+ printf("\n");
+ }
+ printf("\n)");
+}
+
+
+void ir_print_visitor::indent(void)
+{
+ for (int i = 0; i < indentation; i++)
+ printf(" ");
+}
+
+static void
+print_type(const glsl_type *t)
+{
+ if (t->base_type == GLSL_TYPE_ARRAY) {
+ printf("(array ");
+ print_type(t->fields.array);
+ printf(" %u)", t->length);
+ } else if ((t->base_type == GLSL_TYPE_STRUCT)
+ && (strncmp("gl_", t->name, 3) != 0)) {
+ printf("%s@%p", t->name, (void *) t);
+ } else {
+ printf("%s", t->name);
+ }
+}
+
+
+void ir_print_visitor::visit(ir_variable *ir)
+{
+ printf("(declare ");
+
+ const char *const cent = (ir->centroid) ? "centroid " : "";
+ const char *const inv = (ir->invariant) ? "invariant " : "";
+ const char *const mode[] = { "", "uniform ", "in ", "out ", "inout ",
+ "temporary " };
+ const char *const interp[] = { "", "flat", "noperspective" };
+
+ printf("(%s%s%s%s) ",
+ cent, inv, mode[ir->mode], interp[ir->interpolation]);
+
+ print_type(ir->type);
+ printf(" %s@%p)", ir->name, (void *) ir);
+}
+
+
+void ir_print_visitor::visit(ir_function_signature *ir)
+{
+ printf("(signature ");
+ indentation++;
+
+ print_type(ir->return_type);
+ printf("\n");
+ indent();
+
+ printf("(parameters\n");
+ indentation++;
+
+ foreach_iter(exec_list_iterator, iter, ir->parameters) {
+ ir_variable *const inst = (ir_variable *) iter.get();
+
+ indent();
+ inst->accept(this);
+ printf("\n");
+ }
+ indentation--;
+
+ indent();
+ printf(")\n");
+
+ indent();
+
+ printf("(\n");
+ indentation++;
+
+ foreach_iter(exec_list_iterator, iter, ir->body) {
+ ir_instruction *const inst = (ir_instruction *) iter.get();
+
+ indent();
+ inst->accept(this);
+ printf("\n");
+ }
+ indentation--;
+ indent();
+ printf("))\n");
+ indentation--;
+}
+
+
+void ir_print_visitor::visit(ir_function *ir)
+{
+ if (!ir->has_user_signature())
+ return;
+
+ printf("(function %s\n", ir->name);
+ indentation++;
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_function_signature *const sig = (ir_function_signature *) iter.get();
+
+ if (sig->is_builtin)
+ continue;
+
+ indent();
+ sig->accept(this);
+ printf("\n");
+ }
+ indentation--;
+ indent();
+ printf(")\n\n");
+}
+
+
+void ir_print_visitor::visit(ir_expression *ir)
+{
+ printf("(expression ");
+
+ print_type(ir->type);
+
+ printf(" %s ", ir->operator_string());
+
+ if (ir->operands[0])
+ ir->operands[0]->accept(this);
+
+ if (ir->operands[1])
+ ir->operands[1]->accept(this);
+ printf(") ");
+}
+
+
+void ir_print_visitor::visit(ir_texture *ir)
+{
+ printf("(%s ", ir->opcode_string());
+
+ ir->sampler->accept(this);
+ printf(" ");
+
+ ir->coordinate->accept(this);
+
+ printf(" (%d %d %d) ", ir->offsets[0], ir->offsets[1], ir->offsets[2]);
+
+ if (ir->op != ir_txf) {
+ if (ir->projector)
+ ir->projector->accept(this);
+ else
+ printf("1");
+
+ if (ir->shadow_comparitor) {
+ printf(" ");
+ ir->shadow_comparitor->accept(this);
+ } else {
+ printf(" ()");
+ }
+ }
+
+ printf(" ");
+ switch (ir->op)
+ {
+ case ir_tex:
+ break;
+ case ir_txb:
+ ir->lod_info.bias->accept(this);
+ break;
+ case ir_txl:
+ case ir_txf:
+ ir->lod_info.lod->accept(this);
+ break;
+ case ir_txd:
+ printf("(");
+ ir->lod_info.grad.dPdx->accept(this);
+ printf(" ");
+ ir->lod_info.grad.dPdy->accept(this);
+ printf(")");
+ break;
+ };
+ printf(")");
+}
+
+
+void ir_print_visitor::visit(ir_swizzle *ir)
+{
+ const unsigned swiz[4] = {
+ ir->mask.x,
+ ir->mask.y,
+ ir->mask.z,
+ ir->mask.w,
+ };
+
+ printf("(swiz ");
+ for (unsigned i = 0; i < ir->mask.num_components; i++) {
+ printf("%c", "xyzw"[swiz[i]]);
+ }
+ printf(" ");
+ ir->val->accept(this);
+ printf(")");
+}
+
+
+void ir_print_visitor::visit(ir_dereference_variable *ir)
+{
+ ir_variable *var = ir->variable_referenced();
+ printf("(var_ref %s@%p) ", var->name, (void *) var);
+}
+
+
+void ir_print_visitor::visit(ir_dereference_array *ir)
+{
+ printf("(array_ref ");
+ ir->array->accept(this);
+ ir->array_index->accept(this);
+ printf(") ");
+}
+
+
+void ir_print_visitor::visit(ir_dereference_record *ir)
+{
+ printf("(record_ref ");
+ ir->record->accept(this);
+ printf(" %s) ", ir->field);
+}
+
+
+void ir_print_visitor::visit(ir_assignment *ir)
+{
+ printf("(assign ");
+
+ if (ir->condition)
+ ir->condition->accept(this);
+ else
+ printf("(constant bool (1))");
+
+
+ char mask[5];
+ unsigned j = 0;
+
+ for (unsigned i = 0; i < 4; i++) {
+ if ((ir->write_mask & (1 << i)) != 0) {
+ mask[j] = "xyzw"[i];
+ j++;
+ }
+ }
+ mask[j] = '\0';
+
+ printf(" (%s) ", mask);
+
+ ir->lhs->accept(this);
+
+ printf(" ");
+
+ ir->rhs->accept(this);
+ printf(") ");
+}
+
+
+void ir_print_visitor::visit(ir_constant *ir)
+{
+ const glsl_type *const base_type = ir->type->get_base_type();
+
+ printf("(constant ");
+ print_type(ir->type);
+ printf(" (");
+
+ if (ir->type->is_array()) {
+ for (unsigned i = 0; i < ir->type->length; i++)
+ ir->get_array_element(i)->accept(this);
+ } else {
+ for (unsigned i = 0; i < ir->type->components(); i++) {
+ if (i != 0)
+ printf(" ");
+ switch (base_type->base_type) {
+ case GLSL_TYPE_UINT: printf("%u", ir->value.u[i]); break;
+ case GLSL_TYPE_INT: printf("%d", ir->value.i[i]); break;
+ case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
+ case GLSL_TYPE_BOOL: printf("%d", ir->value.b[i]); break;
+ default: assert(0);
+ }
+ }
+ }
+ printf(")) ");
+}
+
+
+void
+ir_print_visitor::visit(ir_call *ir)
+{
+ printf("(call %s (", ir->callee_name());
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_instruction *const inst = (ir_instruction *) iter.get();
+
+ inst->accept(this);
+ }
+ printf("))\n");
+}
+
+
+void
+ir_print_visitor::visit(ir_return *ir)
+{
+ printf("(return");
+
+ ir_rvalue *const value = ir->get_value();
+ if (value) {
+ printf(" ");
+ value->accept(this);
+ }
+
+ printf(")");
+}
+
+
+void
+ir_print_visitor::visit(ir_discard *ir)
+{
+ printf("(discard ");
+
+ if (ir->condition != NULL) {
+ printf(" ");
+ ir->condition->accept(this);
+ }
+
+ printf(")");
+}
+
+
+void
+ir_print_visitor::visit(ir_if *ir)
+{
+ printf("(if ");
+ ir->condition->accept(this);
+
+ printf("(\n");
+ indentation++;
+
+ foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
+ ir_instruction *const inst = (ir_instruction *) iter.get();
+
+ indent();
+ inst->accept(this);
+ printf("\n");
+ }
+
+ indentation--;
+ indent();
+ printf(")\n");
+
+ indent();
+ if (!ir->else_instructions.is_empty()) {
+ printf("(\n");
+ indentation++;
+
+ foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
+ ir_instruction *const inst = (ir_instruction *) iter.get();
+
+ indent();
+ inst->accept(this);
+ printf("\n");
+ }
+ indentation--;
+ indent();
+ printf("))\n");
+ } else {
+ printf("())\n");
+ }
+}
+
+
+void
+ir_print_visitor::visit(ir_loop *ir)
+{
+ printf("(loop (");
+ if (ir->counter != NULL)
+ ir->counter->accept(this);
+ printf(") (");
+ if (ir->from != NULL)
+ ir->from->accept(this);
+ printf(") (");
+ if (ir->to != NULL)
+ ir->to->accept(this);
+ printf(") (");
+ if (ir->increment != NULL)
+ ir->increment->accept(this);
+ printf(") (\n");
+ indentation++;
+
+ foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
+ ir_instruction *const inst = (ir_instruction *) iter.get();
+
+ indent();
+ inst->accept(this);
+ printf("\n");
+ }
+ indentation--;
+ indent();
+ printf("))\n");
+}
+
+
+void
+ir_print_visitor::visit(ir_loop_jump *ir)
+{
+ printf("%s", ir->is_break() ? "break" : "continue");
+}
diff --git a/mesalib/src/glsl/ir_print_visitor.h b/mesalib/src/glsl/ir_print_visitor.h
new file mode 100644
index 000000000..4feeb8c18
--- /dev/null
+++ b/mesalib/src/glsl/ir_print_visitor.h
@@ -0,0 +1,83 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_PRINT_VISITOR_H
+#define IR_PRINT_VISITOR_H
+
+#include "ir.h"
+#include "ir_visitor.h"
+
+extern void _mesa_print_ir(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state);
+
+/**
+ * Abstract base class of visitors of IR instruction trees
+ */
+class ir_print_visitor : public ir_visitor {
+public:
+ ir_print_visitor()
+ {
+ indentation = 0;
+ }
+
+ virtual ~ir_print_visitor()
+ {
+ /* empty */
+ }
+
+ void indent(void);
+
+ /**
+ * \name Visit methods
+ *
+ * As typical for the visitor pattern, there must be one \c visit method for
+ * each concrete subclass of \c ir_instruction. Virtual base classes within
+ * the hierarchy should not have \c visit methods.
+ */
+ /*@{*/
+ virtual void visit(ir_variable *);
+ virtual void visit(ir_function_signature *);
+ virtual void visit(ir_function *);
+ virtual void visit(ir_expression *);
+ virtual void visit(ir_texture *);
+ virtual void visit(ir_swizzle *);
+ virtual void visit(ir_dereference_variable *);
+ virtual void visit(ir_dereference_array *);
+ virtual void visit(ir_dereference_record *);
+ virtual void visit(ir_assignment *);
+ virtual void visit(ir_constant *);
+ virtual void visit(ir_call *);
+ virtual void visit(ir_return *);
+ virtual void visit(ir_discard *);
+ virtual void visit(ir_if *);
+ virtual void visit(ir_loop *);
+ virtual void visit(ir_loop_jump *);
+ /*@}*/
+
+private:
+ int indentation;
+};
+
+#endif /* IR_PRINT_VISITOR_H */
diff --git a/mesalib/src/glsl/ir_reader.cpp b/mesalib/src/glsl/ir_reader.cpp
new file mode 100644
index 000000000..a9cbf8ea9
--- /dev/null
+++ b/mesalib/src/glsl/ir_reader.cpp
@@ -0,0 +1,1146 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <cstdarg>
+
+extern "C" {
+#include <talloc.h>
+}
+
+#include "ir_reader.h"
+#include "glsl_parser_extras.h"
+#include "glsl_types.h"
+#include "s_expression.h"
+
+const static bool debug = false;
+
+static void ir_read_error(_mesa_glsl_parse_state *, s_expression *,
+ const char *fmt, ...);
+static const glsl_type *read_type(_mesa_glsl_parse_state *, s_expression *);
+
+static void scan_for_prototypes(_mesa_glsl_parse_state *, exec_list *,
+ s_expression *);
+static ir_function *read_function(_mesa_glsl_parse_state *, s_list *,
+ bool skip_body);
+static void read_function_sig(_mesa_glsl_parse_state *, ir_function *,
+ s_list *, bool skip_body);
+
+static void read_instructions(_mesa_glsl_parse_state *, exec_list *,
+ s_expression *, ir_loop *);
+static ir_instruction *read_instruction(_mesa_glsl_parse_state *,
+ s_expression *, ir_loop *);
+static ir_variable *read_declaration(_mesa_glsl_parse_state *, s_list *);
+static ir_if *read_if(_mesa_glsl_parse_state *, s_list *, ir_loop *);
+static ir_loop *read_loop(_mesa_glsl_parse_state *st, s_list *list);
+static ir_return *read_return(_mesa_glsl_parse_state *, s_list *);
+
+static ir_rvalue *read_rvalue(_mesa_glsl_parse_state *, s_expression *);
+static ir_assignment *read_assignment(_mesa_glsl_parse_state *, s_list *);
+static ir_expression *read_expression(_mesa_glsl_parse_state *, s_list *);
+static ir_call *read_call(_mesa_glsl_parse_state *, s_list *);
+static ir_swizzle *read_swizzle(_mesa_glsl_parse_state *, s_list *);
+static ir_constant *read_constant(_mesa_glsl_parse_state *, s_list *);
+static ir_texture *read_texture(_mesa_glsl_parse_state *, s_list *);
+
+static ir_dereference *read_dereference(_mesa_glsl_parse_state *,
+ s_expression *);
+static ir_dereference *read_var_ref(_mesa_glsl_parse_state *, s_list *);
+static ir_dereference *read_array_ref(_mesa_glsl_parse_state *, s_list *);
+static ir_dereference *read_record_ref(_mesa_glsl_parse_state *, s_list *);
+
+void
+_mesa_glsl_read_ir(_mesa_glsl_parse_state *state, exec_list *instructions,
+ const char *src, bool scan_for_protos)
+{
+ s_expression *expr = s_expression::read_expression(state, src);
+ if (expr == NULL) {
+ ir_read_error(state, NULL, "couldn't parse S-Expression.");
+ return;
+ }
+
+ if (scan_for_protos) {
+ scan_for_prototypes(state, instructions, expr);
+ if (state->error)
+ return;
+ }
+
+ read_instructions(state, instructions, expr, NULL);
+ talloc_free(expr);
+
+ if (debug)
+ validate_ir_tree(instructions);
+}
+
+static void
+ir_read_error(_mesa_glsl_parse_state *state, s_expression *expr,
+ const char *fmt, ...)
+{
+ va_list ap;
+
+ state->error = true;
+
+ if (state->current_function != NULL)
+ state->info_log = talloc_asprintf_append(state->info_log,
+ "In function %s:\n",
+ state->current_function->function_name());
+ state->info_log = talloc_strdup_append(state->info_log, "error: ");
+
+ va_start(ap, fmt);
+ state->info_log = talloc_vasprintf_append(state->info_log, fmt, ap);
+ va_end(ap);
+ state->info_log = talloc_strdup_append(state->info_log, "\n");
+
+ if (expr != NULL) {
+ state->info_log = talloc_strdup_append(state->info_log,
+ "...in this context:\n ");
+ expr->print();
+ state->info_log = talloc_strdup_append(state->info_log, "\n\n");
+ }
+}
+
+static const glsl_type *
+read_type(_mesa_glsl_parse_state *st, s_expression *expr)
+{
+ s_list *list = SX_AS_LIST(expr);
+ if (list != NULL) {
+ s_symbol *type_sym = SX_AS_SYMBOL(list->subexpressions.get_head());
+ if (type_sym == NULL) {
+ ir_read_error(st, expr, "expected type (array ...) or (struct ...)");
+ return NULL;
+ }
+ if (strcmp(type_sym->value(), "array") == 0) {
+ if (list->length() != 3) {
+ ir_read_error(st, expr, "expected type (array <type> <int>)");
+ return NULL;
+ }
+
+ // Read base type
+ s_expression *base_expr = (s_expression*) type_sym->next;
+ const glsl_type *base_type = read_type(st, base_expr);
+ if (base_type == NULL) {
+ ir_read_error(st, NULL, "when reading base type of array");
+ return NULL;
+ }
+
+ // Read array size
+ s_int *size = SX_AS_INT(base_expr->next);
+ if (size == NULL) {
+ ir_read_error(st, expr, "found non-integer array size");
+ return NULL;
+ }
+
+ return glsl_type::get_array_instance(base_type, size->value());
+ } else if (strcmp(type_sym->value(), "struct") == 0) {
+ assert(false); // FINISHME
+ } else {
+ ir_read_error(st, expr, "expected (array ...) or (struct ...); "
+ "found (%s ...)", type_sym->value());
+ return NULL;
+ }
+ }
+
+ s_symbol *type_sym = SX_AS_SYMBOL(expr);
+ if (type_sym == NULL) {
+ ir_read_error(st, expr, "expected <type> (symbol or list)");
+ return NULL;
+ }
+
+ const glsl_type *type = st->symbols->get_type(type_sym->value());
+ if (type == NULL)
+ ir_read_error(st, expr, "invalid type: %s", type_sym->value());
+
+ return type;
+}
+
+
+static void
+scan_for_prototypes(_mesa_glsl_parse_state *st, exec_list *instructions,
+ s_expression *expr)
+{
+ s_list *list = SX_AS_LIST(expr);
+ if (list == NULL) {
+ ir_read_error(st, expr, "Expected (<instruction> ...); found an atom.");
+ return;
+ }
+
+ foreach_iter(exec_list_iterator, it, list->subexpressions) {
+ s_list *sub = SX_AS_LIST(it.get());
+ if (sub == NULL)
+ continue; // not a (function ...); ignore it.
+
+ s_symbol *tag = SX_AS_SYMBOL(sub->subexpressions.get_head());
+ if (tag == NULL || strcmp(tag->value(), "function") != 0)
+ continue; // not a (function ...); ignore it.
+
+ ir_function *f = read_function(st, sub, true);
+ if (f == NULL)
+ return;
+ instructions->push_tail(f);
+ }
+}
+
+static ir_function *
+read_function(_mesa_glsl_parse_state *st, s_list *list, bool skip_body)
+{
+ void *ctx = st;
+ bool added = false;
+ if (list->length() < 3) {
+ ir_read_error(st, list, "Expected (function <name> (signature ...) ...)");
+ return NULL;
+ }
+
+ s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next);
+ if (name == NULL) {
+ ir_read_error(st, list, "Expected (function <name> ...)");
+ return NULL;
+ }
+
+ ir_function *f = st->symbols->get_function(name->value());
+ if (f == NULL) {
+ f = new(ctx) ir_function(name->value());
+ added = st->symbols->add_function(f->name, f);
+ assert(added);
+ }
+
+ exec_list_iterator it = list->subexpressions.iterator();
+ it.next(); // skip "function" tag
+ it.next(); // skip function name
+ for (/* nothing */; it.has_next(); it.next()) {
+ s_list *siglist = SX_AS_LIST(it.get());
+ if (siglist == NULL) {
+ ir_read_error(st, list, "Expected (function (signature ...) ...)");
+ return NULL;
+ }
+
+ s_symbol *tag = SX_AS_SYMBOL(siglist->subexpressions.get_head());
+ if (tag == NULL || strcmp(tag->value(), "signature") != 0) {
+ ir_read_error(st, siglist, "Expected (signature ...)");
+ return NULL;
+ }
+
+ read_function_sig(st, f, siglist, skip_body);
+ }
+ return added ? f : NULL;
+}
+
+static void
+read_function_sig(_mesa_glsl_parse_state *st, ir_function *f, s_list *list,
+ bool skip_body)
+{
+ void *ctx = st;
+ if (list->length() != 4) {
+ ir_read_error(st, list, "Expected (signature <type> (parameters ...) "
+ "(<instruction> ...))");
+ return;
+ }
+
+ s_expression *type_expr = (s_expression*) list->subexpressions.head->next;
+ const glsl_type *return_type = read_type(st, type_expr);
+ if (return_type == NULL)
+ return;
+
+ s_list *paramlist = SX_AS_LIST(type_expr->next);
+ s_list *body_list = SX_AS_LIST(paramlist->next);
+ if (paramlist == NULL || body_list == NULL) {
+ ir_read_error(st, list, "Expected (signature <type> (parameters ...) "
+ "(<instruction> ...))");
+ return;
+ }
+ s_symbol *paramtag = SX_AS_SYMBOL(paramlist->subexpressions.get_head());
+ if (paramtag == NULL || strcmp(paramtag->value(), "parameters") != 0) {
+ ir_read_error(st, paramlist, "Expected (parameters ...)");
+ return;
+ }
+
+ // Read the parameters list into a temporary place.
+ exec_list hir_parameters;
+ st->symbols->push_scope();
+
+ exec_list_iterator it = paramlist->subexpressions.iterator();
+ for (it.next() /* skip "parameters" */; it.has_next(); it.next()) {
+ s_list *decl = SX_AS_LIST(it.get());
+ ir_variable *var = read_declaration(st, decl);
+ if (var == NULL)
+ return;
+
+ hir_parameters.push_tail(var);
+ }
+
+ ir_function_signature *sig = f->exact_matching_signature(&hir_parameters);
+ if (sig == NULL && skip_body) {
+ /* If scanning for prototypes, generate a new signature. */
+ sig = new(ctx) ir_function_signature(return_type);
+ sig->is_builtin = true;
+ f->add_signature(sig);
+ } else if (sig != NULL) {
+ const char *badvar = sig->qualifiers_match(&hir_parameters);
+ if (badvar != NULL) {
+ ir_read_error(st, list, "function `%s' parameter `%s' qualifiers "
+ "don't match prototype", f->name, badvar);
+ return;
+ }
+
+ if (sig->return_type != return_type) {
+ ir_read_error(st, list, "function `%s' return type doesn't "
+ "match prototype", f->name);
+ return;
+ }
+ } else {
+ /* No prototype for this body exists - skip it. */
+ st->symbols->pop_scope();
+ return;
+ }
+ assert(sig != NULL);
+
+ sig->replace_parameters(&hir_parameters);
+
+ if (!skip_body && !body_list->subexpressions.is_empty()) {
+ if (sig->is_defined) {
+ ir_read_error(st, list, "function %s redefined", f->name);
+ return;
+ }
+ st->current_function = sig;
+ read_instructions(st, &sig->body, body_list, NULL);
+ st->current_function = NULL;
+ sig->is_defined = true;
+ }
+
+ st->symbols->pop_scope();
+}
+
+static void
+read_instructions(_mesa_glsl_parse_state *st, exec_list *instructions,
+ s_expression *expr, ir_loop *loop_ctx)
+{
+ // Read in a list of instructions
+ s_list *list = SX_AS_LIST(expr);
+ if (list == NULL) {
+ ir_read_error(st, expr, "Expected (<instruction> ...); found an atom.");
+ return;
+ }
+
+ foreach_iter(exec_list_iterator, it, list->subexpressions) {
+ s_expression *sub = (s_expression*) it.get();
+ ir_instruction *ir = read_instruction(st, sub, loop_ctx);
+ if (ir != NULL) {
+ /* Global variable declarations should be moved to the top, before
+ * any functions that might use them. Functions are added to the
+ * instruction stream when scanning for prototypes, so without this
+ * hack, they always appear before variable declarations.
+ */
+ if (st->current_function == NULL && ir->as_variable() != NULL)
+ instructions->push_head(ir);
+ else
+ instructions->push_tail(ir);
+ }
+ }
+}
+
+
+static ir_instruction *
+read_instruction(_mesa_glsl_parse_state *st, s_expression *expr,
+ ir_loop *loop_ctx)
+{
+ void *ctx = st;
+ s_symbol *symbol = SX_AS_SYMBOL(expr);
+ if (symbol != NULL) {
+ if (strcmp(symbol->value(), "break") == 0 && loop_ctx != NULL)
+ return new(ctx) ir_loop_jump(ir_loop_jump::jump_break);
+ if (strcmp(symbol->value(), "continue") == 0 && loop_ctx != NULL)
+ return new(ctx) ir_loop_jump(ir_loop_jump::jump_continue);
+ }
+
+ s_list *list = SX_AS_LIST(expr);
+ if (list == NULL || list->subexpressions.is_empty()) {
+ ir_read_error(st, expr, "Invalid instruction.\n");
+ return NULL;
+ }
+
+ s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head());
+ if (tag == NULL) {
+ ir_read_error(st, expr, "expected instruction tag");
+ return NULL;
+ }
+
+ ir_instruction *inst = NULL;
+ if (strcmp(tag->value(), "declare") == 0) {
+ inst = read_declaration(st, list);
+ } else if (strcmp(tag->value(), "assign") == 0) {
+ inst = read_assignment(st, list);
+ } else if (strcmp(tag->value(), "if") == 0) {
+ inst = read_if(st, list, loop_ctx);
+ } else if (strcmp(tag->value(), "loop") == 0) {
+ inst = read_loop(st, list);
+ } else if (strcmp(tag->value(), "return") == 0) {
+ inst = read_return(st, list);
+ } else if (strcmp(tag->value(), "function") == 0) {
+ inst = read_function(st, list, false);
+ } else {
+ inst = read_rvalue(st, list);
+ if (inst == NULL)
+ ir_read_error(st, NULL, "when reading instruction");
+ }
+ return inst;
+}
+
+
+static ir_variable *
+read_declaration(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 4) {
+ ir_read_error(st, list, "expected (declare (<qualifiers>) <type> "
+ "<name>)");
+ return NULL;
+ }
+
+ s_list *quals = SX_AS_LIST(list->subexpressions.head->next);
+ if (quals == NULL) {
+ ir_read_error(st, list, "expected a list of variable qualifiers");
+ return NULL;
+ }
+
+ s_expression *type_expr = (s_expression*) quals->next;
+ const glsl_type *type = read_type(st, type_expr);
+ if (type == NULL)
+ return NULL;
+
+ s_symbol *var_name = SX_AS_SYMBOL(type_expr->next);
+ if (var_name == NULL) {
+ ir_read_error(st, list, "expected variable name, found non-symbol");
+ return NULL;
+ }
+
+ ir_variable *var = new(ctx) ir_variable(type, var_name->value(),
+ ir_var_auto);
+
+ foreach_iter(exec_list_iterator, it, quals->subexpressions) {
+ s_symbol *qualifier = SX_AS_SYMBOL(it.get());
+ if (qualifier == NULL) {
+ ir_read_error(st, list, "qualifier list must contain only symbols");
+ delete var;
+ return NULL;
+ }
+
+ // FINISHME: Check for duplicate/conflicting qualifiers.
+ if (strcmp(qualifier->value(), "centroid") == 0) {
+ var->centroid = 1;
+ } else if (strcmp(qualifier->value(), "invariant") == 0) {
+ var->invariant = 1;
+ } else if (strcmp(qualifier->value(), "uniform") == 0) {
+ var->mode = ir_var_uniform;
+ } else if (strcmp(qualifier->value(), "auto") == 0) {
+ var->mode = ir_var_auto;
+ } else if (strcmp(qualifier->value(), "in") == 0) {
+ var->mode = ir_var_in;
+ } else if (strcmp(qualifier->value(), "out") == 0) {
+ var->mode = ir_var_out;
+ } else if (strcmp(qualifier->value(), "inout") == 0) {
+ var->mode = ir_var_inout;
+ } else if (strcmp(qualifier->value(), "smooth") == 0) {
+ var->interpolation = ir_var_smooth;
+ } else if (strcmp(qualifier->value(), "flat") == 0) {
+ var->interpolation = ir_var_flat;
+ } else if (strcmp(qualifier->value(), "noperspective") == 0) {
+ var->interpolation = ir_var_noperspective;
+ } else {
+ ir_read_error(st, list, "unknown qualifier: %s", qualifier->value());
+ delete var;
+ return NULL;
+ }
+ }
+
+ // Add the variable to the symbol table
+ st->symbols->add_variable(var->name, var);
+
+ return var;
+}
+
+
+static ir_if *
+read_if(_mesa_glsl_parse_state *st, s_list *list, ir_loop *loop_ctx)
+{
+ void *ctx = st;
+ if (list->length() != 4) {
+ ir_read_error(st, list, "expected (if <condition> (<then> ...) "
+ "(<else> ...))");
+ return NULL;
+ }
+
+ s_expression *cond_expr = (s_expression*) list->subexpressions.head->next;
+ ir_rvalue *condition = read_rvalue(st, cond_expr);
+ if (condition == NULL) {
+ ir_read_error(st, NULL, "when reading condition of (if ...)");
+ return NULL;
+ }
+
+ s_expression *then_expr = (s_expression*) cond_expr->next;
+ s_expression *else_expr = (s_expression*) then_expr->next;
+
+ ir_if *iff = new(ctx) ir_if(condition);
+
+ read_instructions(st, &iff->then_instructions, then_expr, loop_ctx);
+ read_instructions(st, &iff->else_instructions, else_expr, loop_ctx);
+ if (st->error) {
+ delete iff;
+ iff = NULL;
+ }
+ return iff;
+}
+
+
+static ir_loop *
+read_loop(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 6) {
+ ir_read_error(st, list, "expected (loop <counter> <from> <to> "
+ "<increment> <body>)");
+ return NULL;
+ }
+
+ s_expression *count_expr = (s_expression*) list->subexpressions.head->next;
+ s_expression *from_expr = (s_expression*) count_expr->next;
+ s_expression *to_expr = (s_expression*) from_expr->next;
+ s_expression *inc_expr = (s_expression*) to_expr->next;
+ s_expression *body_expr = (s_expression*) inc_expr->next;
+
+ // FINISHME: actually read the count/from/to fields.
+
+ ir_loop *loop = new(ctx) ir_loop;
+ read_instructions(st, &loop->body_instructions, body_expr, loop);
+ if (st->error) {
+ delete loop;
+ loop = NULL;
+ }
+ return loop;
+}
+
+
+static ir_return *
+read_return(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 2) {
+ ir_read_error(st, list, "expected (return <rvalue>)");
+ return NULL;
+ }
+
+ s_expression *expr = (s_expression*) list->subexpressions.head->next;
+
+ ir_rvalue *retval = read_rvalue(st, expr);
+ if (retval == NULL) {
+ ir_read_error(st, NULL, "when reading return value");
+ return NULL;
+ }
+
+ return new(ctx) ir_return(retval);
+}
+
+
+static ir_rvalue *
+read_rvalue(_mesa_glsl_parse_state *st, s_expression *expr)
+{
+ s_list *list = SX_AS_LIST(expr);
+ if (list == NULL || list->subexpressions.is_empty())
+ return NULL;
+
+ s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head());
+ if (tag == NULL) {
+ ir_read_error(st, expr, "expected rvalue tag");
+ return NULL;
+ }
+
+ ir_rvalue *rvalue = read_dereference(st, list);
+ if (rvalue != NULL || st->error)
+ return rvalue;
+ else if (strcmp(tag->value(), "swiz") == 0) {
+ rvalue = read_swizzle(st, list);
+ } else if (strcmp(tag->value(), "expression") == 0) {
+ rvalue = read_expression(st, list);
+ } else if (strcmp(tag->value(), "call") == 0) {
+ rvalue = read_call(st, list);
+ } else if (strcmp(tag->value(), "constant") == 0) {
+ rvalue = read_constant(st, list);
+ } else {
+ rvalue = read_texture(st, list);
+ if (rvalue == NULL && !st->error)
+ ir_read_error(st, expr, "unrecognized rvalue tag: %s", tag->value());
+ }
+
+ return rvalue;
+}
+
+static ir_assignment *
+read_assignment(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 5) {
+ ir_read_error(st, list, "expected (assign <condition> (<write mask>) "
+ "<lhs> <rhs>)");
+ return NULL;
+ }
+
+ s_expression *cond_expr = (s_expression*) list->subexpressions.head->next;
+ s_list *mask_list = SX_AS_LIST(cond_expr->next);
+ s_expression *lhs_expr = (s_expression*) cond_expr->next->next;
+ s_expression *rhs_expr = (s_expression*) lhs_expr->next;
+
+ ir_rvalue *condition = read_rvalue(st, cond_expr);
+ if (condition == NULL) {
+ ir_read_error(st, NULL, "when reading condition of assignment");
+ return NULL;
+ }
+
+ if (mask_list == NULL || mask_list->length() > 1) {
+ ir_read_error(st, mask_list, "expected () or (<write mask>)");
+ return NULL;
+ }
+
+ unsigned mask = 0;
+ if (mask_list->length() == 1) {
+ s_symbol *mask_symbol = SX_AS_SYMBOL(mask_list->subexpressions.head);
+ if (mask_symbol == NULL) {
+ ir_read_error(st, list, "expected a write mask; found non-symbol");
+ return NULL;
+ }
+
+ const char *mask_str = mask_symbol->value();
+ unsigned mask_length = strlen(mask_str);
+ if (mask_length > 4) {
+ ir_read_error(st, list, "invalid write mask: %s", mask_str);
+ return NULL;
+ }
+
+ const unsigned idx_map[] = { 3, 0, 1, 2 }; /* w=bit 3, x=0, y=1, z=2 */
+
+ for (unsigned i = 0; i < mask_length; i++) {
+ if (mask_str[i] < 'w' || mask_str[i] > 'z') {
+ ir_read_error(st, list, "write mask contains invalid character: %c",
+ mask_str[i]);
+ return NULL;
+ }
+ mask |= 1 << idx_map[mask_str[i] - 'w'];
+ }
+ }
+
+ ir_dereference *lhs = read_dereference(st, lhs_expr);
+ if (lhs == NULL) {
+ ir_read_error(st, NULL, "when reading left-hand side of assignment");
+ return NULL;
+ }
+
+ ir_rvalue *rhs = read_rvalue(st, rhs_expr);
+ if (rhs == NULL) {
+ ir_read_error(st, NULL, "when reading right-hand side of assignment");
+ return NULL;
+ }
+
+ if (mask == 0 && (lhs->type->is_vector() || lhs->type->is_scalar())) {
+ ir_read_error(st, list, "non-zero write mask required.");
+ return NULL;
+ }
+
+ return new(ctx) ir_assignment(lhs, rhs, condition, mask);
+}
+
+static ir_call *
+read_call(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 3) {
+ ir_read_error(st, list, "expected (call <name> (<param> ...))");
+ return NULL;
+ }
+
+ s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next);
+ s_list *params = SX_AS_LIST(name->next);
+ if (name == NULL || params == NULL) {
+ ir_read_error(st, list, "expected (call <name> (<param> ...))");
+ return NULL;
+ }
+
+ exec_list parameters;
+
+ foreach_iter(exec_list_iterator, it, params->subexpressions) {
+ s_expression *expr = (s_expression*) it.get();
+ ir_rvalue *param = read_rvalue(st, expr);
+ if (param == NULL) {
+ ir_read_error(st, list, "when reading parameter to function call");
+ return NULL;
+ }
+ parameters.push_tail(param);
+ }
+
+ ir_function *f = st->symbols->get_function(name->value());
+ if (f == NULL) {
+ ir_read_error(st, list, "found call to undefined function %s",
+ name->value());
+ return NULL;
+ }
+
+ ir_function_signature *callee = f->matching_signature(&parameters);
+ if (callee == NULL) {
+ ir_read_error(st, list, "couldn't find matching signature for function "
+ "%s", name->value());
+ return NULL;
+ }
+
+ return new(ctx) ir_call(callee, &parameters);
+}
+
+static ir_expression *
+read_expression(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ const unsigned list_length = list->length();
+ if (list_length < 4) {
+ ir_read_error(st, list, "expected (expression <type> <operator> "
+ "<operand> [<operand>])");
+ return NULL;
+ }
+
+ s_expression *type_expr = (s_expression*) list->subexpressions.head->next;
+ const glsl_type *type = read_type(st, type_expr);
+ if (type == NULL)
+ return NULL;
+
+ /* Read the operator */
+ s_symbol *op_sym = SX_AS_SYMBOL(type_expr->next);
+ if (op_sym == NULL) {
+ ir_read_error(st, list, "expected operator, found non-symbol");
+ return NULL;
+ }
+
+ ir_expression_operation op = ir_expression::get_operator(op_sym->value());
+ if (op == (ir_expression_operation) -1) {
+ ir_read_error(st, list, "invalid operator: %s", op_sym->value());
+ return NULL;
+ }
+
+ /* Now that we know the operator, check for the right number of operands */
+ if (ir_expression::get_num_operands(op) == 2) {
+ if (list_length != 5) {
+ ir_read_error(st, list, "expected (expression <type> %s <operand> "
+ " <operand>)", op_sym->value());
+ return NULL;
+ }
+ } else {
+ if (list_length != 4) {
+ ir_read_error(st, list, "expected (expression <type> %s <operand>)",
+ op_sym->value());
+ return NULL;
+ }
+ }
+
+ s_expression *exp1 = (s_expression*) (op_sym->next);
+ ir_rvalue *arg1 = read_rvalue(st, exp1);
+ if (arg1 == NULL) {
+ ir_read_error(st, NULL, "when reading first operand of %s",
+ op_sym->value());
+ return NULL;
+ }
+
+ ir_rvalue *arg2 = NULL;
+ if (ir_expression::get_num_operands(op) == 2) {
+ s_expression *exp2 = (s_expression*) (exp1->next);
+ arg2 = read_rvalue(st, exp2);
+ if (arg2 == NULL) {
+ ir_read_error(st, NULL, "when reading second operand of %s",
+ op_sym->value());
+ return NULL;
+ }
+ }
+
+ return new(ctx) ir_expression(op, type, arg1, arg2);
+}
+
+static ir_swizzle *
+read_swizzle(_mesa_glsl_parse_state *st, s_list *list)
+{
+ if (list->length() != 3) {
+ ir_read_error(st, list, "expected (swiz <swizzle> <rvalue>)");
+ return NULL;
+ }
+
+ s_symbol *swiz = SX_AS_SYMBOL(list->subexpressions.head->next);
+ if (swiz == NULL) {
+ ir_read_error(st, list, "expected a valid swizzle; found non-symbol");
+ return NULL;
+ }
+
+ if (strlen(swiz->value()) > 4) {
+ ir_read_error(st, list, "expected a valid swizzle; found %s",
+ swiz->value());
+ return NULL;
+ }
+
+ s_expression *sub = (s_expression*) swiz->next;
+ if (sub == NULL) {
+ ir_read_error(st, list, "expected rvalue: (swizzle %s <rvalue>)",
+ swiz->value());
+ return NULL;
+ }
+
+ ir_rvalue *rvalue = read_rvalue(st, sub);
+ if (rvalue == NULL)
+ return NULL;
+
+ ir_swizzle *ir = ir_swizzle::create(rvalue, swiz->value(),
+ rvalue->type->vector_elements);
+ if (ir == NULL)
+ ir_read_error(st, list, "invalid swizzle");
+
+ return ir;
+}
+
+static ir_constant *
+read_constant(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 3) {
+ ir_read_error(st, list, "expected (constant <type> (...))");
+ return NULL;
+ }
+
+ s_expression *type_expr = (s_expression*) list->subexpressions.head->next;
+ const glsl_type *type = read_type(st, type_expr);
+ if (type == NULL)
+ return NULL;
+
+ s_list *values = SX_AS_LIST(type_expr->next);
+ if (values == NULL) {
+ ir_read_error(st, list, "expected (constant <type> (...))");
+ return NULL;
+ }
+
+ if (type->is_array()) {
+ const unsigned elements_supplied = values->length();
+ if (elements_supplied != type->length) {
+ ir_read_error(st, values, "expected exactly %u array elements, "
+ "given %u", type->length, elements_supplied);
+ return NULL;
+ }
+
+ exec_list elements;
+ foreach_iter(exec_list_iterator, it, values->subexpressions) {
+ s_expression *expr = (s_expression *) it.get();
+ s_list *elt = SX_AS_LIST(expr);
+ if (elt == NULL) {
+ ir_read_error(st, expr, "expected (constant ...) array element");
+ return NULL;
+ }
+
+ ir_constant *ir_elt = read_constant(st, elt);
+ if (ir_elt == NULL)
+ return NULL;
+ elements.push_tail(ir_elt);
+ }
+ return new(ctx) ir_constant(type, &elements);
+ }
+
+ const glsl_type *const base_type = type->get_base_type();
+
+ ir_constant_data data = { { 0 } };
+
+ // Read in list of values (at most 16).
+ int k = 0;
+ foreach_iter(exec_list_iterator, it, values->subexpressions) {
+ if (k >= 16) {
+ ir_read_error(st, values, "expected at most 16 numbers");
+ return NULL;
+ }
+
+ s_expression *expr = (s_expression*) it.get();
+
+ if (base_type->base_type == GLSL_TYPE_FLOAT) {
+ s_number *value = SX_AS_NUMBER(expr);
+ if (value == NULL) {
+ ir_read_error(st, values, "expected numbers");
+ return NULL;
+ }
+ data.f[k] = value->fvalue();
+ } else {
+ s_int *value = SX_AS_INT(expr);
+ if (value == NULL) {
+ ir_read_error(st, values, "expected integers");
+ return NULL;
+ }
+
+ switch (base_type->base_type) {
+ case GLSL_TYPE_UINT: {
+ data.u[k] = value->value();
+ break;
+ }
+ case GLSL_TYPE_INT: {
+ data.i[k] = value->value();
+ break;
+ }
+ case GLSL_TYPE_BOOL: {
+ data.b[k] = value->value();
+ break;
+ }
+ default:
+ ir_read_error(st, values, "unsupported constant type");
+ return NULL;
+ }
+ }
+ ++k;
+ }
+
+ return new(ctx) ir_constant(type, &data);
+}
+
+static ir_dereference *
+read_dereference(_mesa_glsl_parse_state *st, s_expression *expr)
+{
+ s_list *list = SX_AS_LIST(expr);
+ if (list == NULL || list->subexpressions.is_empty())
+ return NULL;
+
+ s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.head);
+ assert(tag != NULL);
+
+ if (strcmp(tag->value(), "var_ref") == 0)
+ return read_var_ref(st, list);
+ if (strcmp(tag->value(), "array_ref") == 0)
+ return read_array_ref(st, list);
+ if (strcmp(tag->value(), "record_ref") == 0)
+ return read_record_ref(st, list);
+ return NULL;
+}
+
+static ir_dereference *
+read_var_ref(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 2) {
+ ir_read_error(st, list, "expected (var_ref <variable name>)");
+ return NULL;
+ }
+ s_symbol *var_name = SX_AS_SYMBOL(list->subexpressions.head->next);
+ if (var_name == NULL) {
+ ir_read_error(st, list, "expected (var_ref <variable name>)");
+ return NULL;
+ }
+
+ ir_variable *var = st->symbols->get_variable(var_name->value());
+ if (var == NULL) {
+ ir_read_error(st, list, "undeclared variable: %s", var_name->value());
+ return NULL;
+ }
+
+ return new(ctx) ir_dereference_variable(var);
+}
+
+static ir_dereference *
+read_array_ref(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 3) {
+ ir_read_error(st, list, "expected (array_ref <rvalue> <index>)");
+ return NULL;
+ }
+
+ s_expression *subj_expr = (s_expression*) list->subexpressions.head->next;
+ ir_rvalue *subject = read_rvalue(st, subj_expr);
+ if (subject == NULL) {
+ ir_read_error(st, NULL, "when reading the subject of an array_ref");
+ return NULL;
+ }
+
+ s_expression *idx_expr = (s_expression*) subj_expr->next;
+ ir_rvalue *idx = read_rvalue(st, idx_expr);
+ return new(ctx) ir_dereference_array(subject, idx);
+}
+
+static ir_dereference *
+read_record_ref(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ if (list->length() != 3) {
+ ir_read_error(st, list, "expected (record_ref <rvalue> <field>)");
+ return NULL;
+ }
+
+ s_expression *subj_expr = (s_expression*) list->subexpressions.head->next;
+ ir_rvalue *subject = read_rvalue(st, subj_expr);
+ if (subject == NULL) {
+ ir_read_error(st, NULL, "when reading the subject of a record_ref");
+ return NULL;
+ }
+
+ s_symbol *field = SX_AS_SYMBOL(subj_expr->next);
+ if (field == NULL) {
+ ir_read_error(st, list, "expected (record_ref ... <field name>)");
+ return NULL;
+ }
+ return new(ctx) ir_dereference_record(subject, field->value());
+}
+
+static bool
+valid_texture_list_length(ir_texture_opcode op, s_list *list)
+{
+ unsigned required_length = 7;
+ if (op == ir_txf)
+ required_length = 5;
+ else if (op == ir_tex)
+ required_length = 6;
+
+ return list->length() == required_length;
+}
+
+static ir_texture *
+read_texture(_mesa_glsl_parse_state *st, s_list *list)
+{
+ void *ctx = st;
+ s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.head);
+ assert(tag != NULL);
+
+ ir_texture_opcode op = ir_texture::get_opcode(tag->value());
+ if (op == (ir_texture_opcode) -1)
+ return NULL;
+
+ if (!valid_texture_list_length(op, list)) {
+ ir_read_error(st, NULL, "invalid list size in (%s ...)", tag->value());
+ return NULL;
+ }
+
+ ir_texture *tex = new(ctx) ir_texture(op);
+
+ // Read sampler (must be a deref)
+ s_expression *sampler_expr = (s_expression *) tag->next;
+ ir_dereference *sampler = read_dereference(st, sampler_expr);
+ if (sampler == NULL) {
+ ir_read_error(st, NULL, "when reading sampler in (%s ...)", tag->value());
+ return NULL;
+ }
+ tex->set_sampler(sampler);
+
+ // Read coordinate (any rvalue)
+ s_expression *coordinate_expr = (s_expression *) sampler_expr->next;
+ tex->coordinate = read_rvalue(st, coordinate_expr);
+ if (tex->coordinate == NULL) {
+ ir_read_error(st, NULL, "when reading coordinate in (%s ...)",
+ tag->value());
+ return NULL;
+ }
+
+ // Read texel offset, i.e. (0 0 0)
+ s_list *offset_list = SX_AS_LIST(coordinate_expr->next);
+ if (offset_list == NULL || offset_list->length() != 3) {
+ ir_read_error(st, offset_list, "expected (<int> <int> <int>)");
+ return NULL;
+ }
+ s_int *offset_x = SX_AS_INT(offset_list->subexpressions.head);
+ s_int *offset_y = SX_AS_INT(offset_x->next);
+ s_int *offset_z = SX_AS_INT(offset_y->next);
+ if (offset_x == NULL || offset_y == NULL || offset_z == NULL) {
+ ir_read_error(st, offset_list, "expected (<int> <int> <int>)");
+ return NULL;
+ }
+ tex->offsets[0] = offset_x->value();
+ tex->offsets[1] = offset_y->value();
+ tex->offsets[2] = offset_z->value();
+
+ if (op == ir_txf) {
+ s_expression *lod_expr = (s_expression *) offset_list->next;
+ tex->lod_info.lod = read_rvalue(st, lod_expr);
+ if (tex->lod_info.lod == NULL) {
+ ir_read_error(st, NULL, "when reading LOD in (txf ...)");
+ return NULL;
+ }
+ } else {
+ s_expression *proj_expr = (s_expression *) offset_list->next;
+ s_int *proj_as_int = SX_AS_INT(proj_expr);
+ if (proj_as_int && proj_as_int->value() == 1) {
+ tex->projector = NULL;
+ } else {
+ tex->projector = read_rvalue(st, proj_expr);
+ if (tex->projector == NULL) {
+ ir_read_error(st, NULL, "when reading projective divide in (%s ..)",
+ tag->value());
+ return NULL;
+ }
+ }
+
+ s_list *shadow_list = SX_AS_LIST(proj_expr->next);
+ if (shadow_list == NULL) {
+ ir_read_error(st, NULL, "shadow comparitor must be a list");
+ return NULL;
+ }
+ if (shadow_list->subexpressions.is_empty()) {
+ tex->shadow_comparitor= NULL;
+ } else {
+ tex->shadow_comparitor = read_rvalue(st, shadow_list);
+ if (tex->shadow_comparitor == NULL) {
+ ir_read_error(st, NULL, "when reading shadow comparitor in (%s ..)",
+ tag->value());
+ return NULL;
+ }
+ }
+ s_expression *lod_expr = (s_expression *) shadow_list->next;
+
+ switch (op) {
+ case ir_txb:
+ tex->lod_info.bias = read_rvalue(st, lod_expr);
+ if (tex->lod_info.bias == NULL) {
+ ir_read_error(st, NULL, "when reading LOD bias in (txb ...)");
+ return NULL;
+ }
+ break;
+ case ir_txl:
+ tex->lod_info.lod = read_rvalue(st, lod_expr);
+ if (tex->lod_info.lod == NULL) {
+ ir_read_error(st, NULL, "when reading LOD in (txl ...)");
+ return NULL;
+ }
+ break;
+ case ir_txd: {
+ s_list *lod_list = SX_AS_LIST(lod_expr);
+ if (lod_list->length() != 2) {
+ ir_read_error(st, lod_expr, "expected (dPdx dPdy) in (txd ...)");
+ return NULL;
+ }
+ s_expression *dx_expr = (s_expression *) lod_list->subexpressions.head;
+ s_expression *dy_expr = (s_expression *) dx_expr->next;
+
+ tex->lod_info.grad.dPdx = read_rvalue(st, dx_expr);
+ if (tex->lod_info.grad.dPdx == NULL) {
+ ir_read_error(st, NULL, "when reading dPdx in (txd ...)");
+ return NULL;
+ }
+ tex->lod_info.grad.dPdy = read_rvalue(st, dy_expr);
+ if (tex->lod_info.grad.dPdy == NULL) {
+ ir_read_error(st, NULL, "when reading dPdy in (txd ...)");
+ return NULL;
+ }
+ break;
+ }
+ default:
+ // tex doesn't have any extra parameters and txf was handled earlier.
+ break;
+ };
+ }
+ return tex;
+}
diff --git a/mesalib/src/glsl/ir_reader.h b/mesalib/src/glsl/ir_reader.h
new file mode 100644
index 000000000..aef2ca23b
--- /dev/null
+++ b/mesalib/src/glsl/ir_reader.h
@@ -0,0 +1,34 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_READER_H
+#define IR_READER_H
+
+#include "ir.h"
+
+void _mesa_glsl_read_ir(_mesa_glsl_parse_state *state, exec_list *instructions,
+ const char *src, bool scan_for_prototypes);
+
+#endif /* IR_READER_H */
diff --git a/mesalib/src/glsl/ir_rvalue_visitor.cpp b/mesalib/src/glsl/ir_rvalue_visitor.cpp
new file mode 100644
index 000000000..773bfcfa3
--- /dev/null
+++ b/mesalib/src/glsl/ir_rvalue_visitor.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_rvalue_visitor.cpp
+ *
+ * Generic class to implement the common pattern we have of wanting to
+ * visit each ir_rvalue * and possibly change that node to a different
+ * class.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_print_visitor.h"
+#include "glsl_types.h"
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_expression *ir)
+{
+ unsigned int operand;
+
+ for (operand = 0; operand < ir->get_num_operands(); operand++) {
+ handle_rvalue(&ir->operands[operand]);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_texture *ir)
+{
+ handle_rvalue(&ir->coordinate);
+ handle_rvalue(&ir->projector);
+ handle_rvalue(&ir->shadow_comparitor);
+
+ switch (ir->op) {
+ case ir_tex:
+ break;
+ case ir_txb:
+ handle_rvalue(&ir->lod_info.bias);
+ break;
+ case ir_txf:
+ case ir_txl:
+ handle_rvalue(&ir->lod_info.lod);
+ break;
+ case ir_txd:
+ handle_rvalue(&ir->lod_info.grad.dPdx);
+ handle_rvalue(&ir->lod_info.grad.dPdy);
+ break;
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_swizzle *ir)
+{
+ handle_rvalue(&ir->val);
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_dereference_array *ir)
+{
+ /* The array index is not the target of the assignment, so clear the
+ * 'in_assignee' flag. Restore it after returning from the array index.
+ */
+ const bool was_in_assignee = this->in_assignee;
+ this->in_assignee = false;
+ handle_rvalue(&ir->array_index);
+ this->in_assignee = was_in_assignee;
+
+ handle_rvalue(&ir->array);
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_dereference_record *ir)
+{
+ handle_rvalue(&ir->record);
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_assignment *ir)
+{
+ handle_rvalue(&ir->rhs);
+ handle_rvalue(&ir->condition);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_call *ir)
+{
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param = (ir_rvalue *)iter.get();
+ ir_rvalue *new_param = param;
+ handle_rvalue(&new_param);
+
+ if (new_param != param) {
+ param->replace_with(new_param);
+ }
+ }
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_return *ir)
+{
+ handle_rvalue(&ir->value);;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_rvalue_visitor::visit_leave(ir_if *ir)
+{
+ handle_rvalue(&ir->condition);
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_rvalue_visitor.h b/mesalib/src/glsl/ir_rvalue_visitor.h
new file mode 100644
index 000000000..31a56beb9
--- /dev/null
+++ b/mesalib/src/glsl/ir_rvalue_visitor.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_rvalue_visitor.h
+ *
+ * Generic class to implement the common pattern we have of wanting to
+ * visit each ir_rvalue * and possibly change that node to a different
+ * class. Just implement handle_rvalue() and you will be called with
+ * a pointer to each rvalue in the tree.
+ */
+
+class ir_rvalue_visitor : public ir_hierarchical_visitor {
+public:
+
+ virtual ir_visitor_status visit_leave(ir_assignment *);
+ virtual ir_visitor_status visit_leave(ir_call *);
+ virtual ir_visitor_status visit_leave(ir_dereference_array *);
+ virtual ir_visitor_status visit_leave(ir_dereference_record *);
+ virtual ir_visitor_status visit_leave(ir_expression *);
+ virtual ir_visitor_status visit_leave(ir_if *);
+ virtual ir_visitor_status visit_leave(ir_return *);
+ virtual ir_visitor_status visit_leave(ir_swizzle *);
+ virtual ir_visitor_status visit_leave(ir_texture *);
+
+ virtual void handle_rvalue(ir_rvalue **rvalue) = 0;
+};
diff --git a/mesalib/src/glsl/ir_set_program_inouts.cpp b/mesalib/src/glsl/ir_set_program_inouts.cpp
new file mode 100644
index 000000000..b3f1cc0d8
--- /dev/null
+++ b/mesalib/src/glsl/ir_set_program_inouts.cpp
@@ -0,0 +1,167 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_set_program_inouts.cpp
+ *
+ * Sets the InputsRead and OutputsWritten of Mesa programs.
+ *
+ * Mesa programs (gl_program, not gl_shader_program) have a set of
+ * flags indicating which varyings are read and written. Computing
+ * which are actually read from some sort of backend code can be
+ * tricky when variable array indexing involved. So this pass
+ * provides support for setting InputsRead and OutputsWritten right
+ * from the GLSL IR.
+ */
+
+extern "C" {
+#include "main/core.h" /* for struct gl_program */
+#include "program/hash_table.h"
+}
+#include "ir.h"
+#include "ir_visitor.h"
+#include "glsl_types.h"
+
+class ir_set_program_inouts_visitor : public ir_hierarchical_visitor {
+public:
+ ir_set_program_inouts_visitor(struct gl_program *prog)
+ {
+ this->prog = prog;
+ this->ht = hash_table_ctor(0,
+ hash_table_pointer_hash,
+ hash_table_pointer_compare);
+ }
+ ~ir_set_program_inouts_visitor()
+ {
+ hash_table_dtor(this->ht);
+ }
+
+ virtual ir_visitor_status visit_enter(ir_dereference_array *);
+ virtual ir_visitor_status visit_enter(ir_function_signature *);
+ virtual ir_visitor_status visit(ir_dereference_variable *);
+ virtual ir_visitor_status visit(ir_variable *);
+
+ struct gl_program *prog;
+ struct hash_table *ht;
+};
+
+static void
+mark(struct gl_program *prog, ir_variable *var, int index)
+{
+ /* As of GLSL 1.20, varyings can only be floats, floating-point
+ * vectors or matrices, or arrays of them. For Mesa programs using
+ * InputsRead/OutputsWritten, everything but matrices uses one
+ * slot, while matrices use a slot per column. Presumably
+ * something doing a more clever packing would use something other
+ * than InputsRead/OutputsWritten.
+ */
+ const glsl_type *element_type;
+ int element_size;
+
+ if (var->type->is_array())
+ element_type = var->type->fields.array;
+ else
+ element_type = var->type;
+
+ if (element_type->is_matrix())
+ element_size = element_type->matrix_columns;
+ else
+ element_size = 1;
+
+ index *= element_size;
+ for (int i = 0; i < element_size; i++) {
+ if (var->mode == ir_var_in)
+ prog->InputsRead |= BITFIELD64_BIT(var->location + index + i);
+ else
+ prog->OutputsWritten |= BITFIELD64_BIT(var->location + index + i);
+ }
+}
+
+/* Default handler: Mark all the locations in the variable as used. */
+ir_visitor_status
+ir_set_program_inouts_visitor::visit(ir_dereference_variable *ir)
+{
+ if (hash_table_find(this->ht, ir->var) == NULL)
+ return visit_continue;
+
+ if (ir->type->is_array()) {
+ for (unsigned int i = 0; i < ir->type->length; i++) {
+ mark(this->prog, ir->var, i);
+ }
+ } else {
+ mark(this->prog, ir->var, 0);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_set_program_inouts_visitor::visit_enter(ir_dereference_array *ir)
+{
+ ir_dereference_variable *deref_var;
+ ir_constant *index = ir->array_index->as_constant();
+ deref_var = ir->array->as_dereference_variable();
+ ir_variable *var = NULL;
+
+ /* Check that we're dereferencing a shader in or out */
+ if (deref_var)
+ var = (ir_variable *)hash_table_find(this->ht, deref_var->var);
+
+ if (index && var) {
+ mark(this->prog, var, index->value.i[0]);
+ return visit_continue_with_parent;
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_set_program_inouts_visitor::visit(ir_variable *ir)
+{
+ if (ir->mode == ir_var_in ||
+ ir->mode == ir_var_out) {
+ hash_table_insert(this->ht, ir, ir);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_set_program_inouts_visitor::visit_enter(ir_function_signature *ir)
+{
+ /* We don't want to descend into the function parameters and
+ * consider them as shader inputs or outputs.
+ */
+ visit_list_elements(this, &ir->body);
+ return visit_continue_with_parent;
+}
+
+void
+do_set_program_inouts(exec_list *instructions, struct gl_program *prog)
+{
+ ir_set_program_inouts_visitor v(prog);
+
+ prog->InputsRead = 0;
+ prog->OutputsWritten = 0;
+ visit_list_elements(&v, instructions);
+}
diff --git a/mesalib/src/glsl/ir_structure_splitting.cpp b/mesalib/src/glsl/ir_structure_splitting.cpp
new file mode 100644
index 000000000..ff3ec936e
--- /dev/null
+++ b/mesalib/src/glsl/ir_structure_splitting.cpp
@@ -0,0 +1,361 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_structure_splitting.cpp
+ *
+ * If a structure is only ever referenced by its components, then
+ * split those components out to individual variables so they can be
+ * handled normally by other optimization passes.
+ *
+ * This skips structures like uniforms, which need to be accessible as
+ * structures for their access by the GL.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_print_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "glsl_types.h"
+
+static bool debug = false;
+
+// XXX using variable_entry2 here to avoid collision (MSVC multiply-defined
+// function) with the variable_entry class seen in ir_variable_refcount.h
+// Perhaps we can use the one in ir_variable_refcount.h and make this class
+// here go away?
+class variable_entry2 : public exec_node
+{
+public:
+ variable_entry2(ir_variable *var)
+ {
+ this->var = var;
+ this->whole_structure_access = 0;
+ this->declaration = false;
+ this->components = NULL;
+ this->mem_ctx = NULL;
+ }
+
+ ir_variable *var; /* The key: the variable's pointer. */
+
+ /** Number of times the variable is referenced, including assignments. */
+ unsigned whole_structure_access;
+
+ bool declaration; /* If the variable had a decl in the instruction stream */
+
+ ir_variable **components;
+
+ /** talloc_parent(this->var) -- the shader's talloc context. */
+ void *mem_ctx;
+};
+
+
+class ir_structure_reference_visitor : public ir_hierarchical_visitor {
+public:
+ ir_structure_reference_visitor(void)
+ {
+ this->mem_ctx = talloc_new(NULL);
+ this->variable_list.make_empty();
+ }
+
+ ~ir_structure_reference_visitor(void)
+ {
+ talloc_free(mem_ctx);
+ }
+
+ virtual ir_visitor_status visit(ir_variable *);
+ virtual ir_visitor_status visit(ir_dereference_variable *);
+ virtual ir_visitor_status visit_enter(ir_dereference_record *);
+ virtual ir_visitor_status visit_enter(ir_assignment *);
+ virtual ir_visitor_status visit_enter(ir_function_signature *);
+
+ variable_entry2 *get_variable_entry2(ir_variable *var);
+
+ /* List of variable_entry */
+ exec_list variable_list;
+
+ void *mem_ctx;
+};
+
+variable_entry2 *
+ir_structure_reference_visitor::get_variable_entry2(ir_variable *var)
+{
+ assert(var);
+
+ if (!var->type->is_record() || var->mode == ir_var_uniform)
+ return NULL;
+
+ foreach_iter(exec_list_iterator, iter, this->variable_list) {
+ variable_entry2 *entry = (variable_entry2 *)iter.get();
+ if (entry->var == var)
+ return entry;
+ }
+
+ variable_entry2 *entry = new(mem_ctx) variable_entry2(var);
+ this->variable_list.push_tail(entry);
+ return entry;
+}
+
+
+ir_visitor_status
+ir_structure_reference_visitor::visit(ir_variable *ir)
+{
+ variable_entry2 *entry = this->get_variable_entry2(ir);
+
+ if (entry)
+ entry->declaration = true;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_structure_reference_visitor::visit(ir_dereference_variable *ir)
+{
+ ir_variable *const var = ir->variable_referenced();
+ variable_entry2 *entry = this->get_variable_entry2(var);
+
+ if (entry)
+ entry->whole_structure_access++;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_structure_reference_visitor::visit_enter(ir_dereference_record *ir)
+{
+ (void) ir;
+ /* Don't descend into the ir_dereference_variable below. */
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_structure_reference_visitor::visit_enter(ir_assignment *ir)
+{
+ if (ir->lhs->as_dereference_variable() &&
+ ir->rhs->as_dereference_variable() &&
+ !ir->condition) {
+ /* We'll split copies of a structure to copies of components, so don't
+ * descend to the ir_dereference_variables.
+ */
+ return visit_continue_with_parent;
+ }
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_structure_reference_visitor::visit_enter(ir_function_signature *ir)
+{
+ /* We don't want to descend into the function parameters and
+ * dead-code eliminate them, so just accept the body here.
+ */
+ visit_list_elements(this, &ir->body);
+ return visit_continue_with_parent;
+}
+
+class ir_structure_splitting_visitor : public ir_rvalue_visitor {
+public:
+ ir_structure_splitting_visitor(exec_list *vars)
+ {
+ this->variable_list = vars;
+ }
+
+ virtual ~ir_structure_splitting_visitor()
+ {
+ }
+
+ virtual ir_visitor_status visit_leave(ir_assignment *);
+
+ void split_deref(ir_dereference **deref);
+ void handle_rvalue(ir_rvalue **rvalue);
+ variable_entry2 *get_splitting_entry(ir_variable *var);
+
+ exec_list *variable_list;
+ void *mem_ctx;
+};
+
+variable_entry2 *
+ir_structure_splitting_visitor::get_splitting_entry(ir_variable *var)
+{
+ assert(var);
+
+ if (!var->type->is_record())
+ return NULL;
+
+ foreach_iter(exec_list_iterator, iter, *this->variable_list) {
+ variable_entry2 *entry = (variable_entry2 *)iter.get();
+ if (entry->var == var) {
+ return entry;
+ }
+ }
+
+ return NULL;
+}
+
+void
+ir_structure_splitting_visitor::split_deref(ir_dereference **deref)
+{
+ if ((*deref)->ir_type != ir_type_dereference_record)
+ return;
+
+ ir_dereference_record *deref_record = (ir_dereference_record *)*deref;
+ ir_dereference_variable *deref_var = deref_record->record->as_dereference_variable();
+ if (!deref_var)
+ return;
+
+ variable_entry2 *entry = get_splitting_entry(deref_var->var);
+ if (!entry)
+ return;
+
+ unsigned int i;
+ for (i = 0; i < entry->var->type->length; i++) {
+ if (strcmp(deref_record->field,
+ entry->var->type->fields.structure[i].name) == 0)
+ break;
+ }
+ assert(i != entry->var->type->length);
+
+ *deref = new(entry->mem_ctx) ir_dereference_variable(entry->components[i]);
+}
+
+void
+ir_structure_splitting_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+ if (!*rvalue)
+ return;
+
+ ir_dereference *deref = (*rvalue)->as_dereference();
+
+ if (!deref)
+ return;
+
+ split_deref(&deref);
+ *rvalue = deref;
+}
+
+ir_visitor_status
+ir_structure_splitting_visitor::visit_leave(ir_assignment *ir)
+{
+ ir_dereference_variable *lhs_deref = ir->lhs->as_dereference_variable();
+ ir_dereference_variable *rhs_deref = ir->rhs->as_dereference_variable();
+ variable_entry2 *lhs_entry = lhs_deref ? get_splitting_entry(lhs_deref->var) : NULL;
+ variable_entry2 *rhs_entry = rhs_deref ? get_splitting_entry(rhs_deref->var) : NULL;
+ const glsl_type *type = ir->rhs->type;
+
+ if ((lhs_entry || rhs_entry) && !ir->condition) {
+ for (unsigned int i = 0; i < type->length; i++) {
+ ir_dereference *new_lhs, *new_rhs;
+ void *mem_ctx = lhs_entry ? lhs_entry->mem_ctx : rhs_entry->mem_ctx;
+
+ if (lhs_entry) {
+ new_lhs = new(mem_ctx) ir_dereference_variable(lhs_entry->components[i]);
+ } else {
+ new_lhs = new(mem_ctx)
+ ir_dereference_record(ir->lhs->clone(mem_ctx, NULL),
+ type->fields.structure[i].name);
+ }
+
+ if (rhs_entry) {
+ new_rhs = new(mem_ctx) ir_dereference_variable(rhs_entry->components[i]);
+ } else {
+ new_rhs = new(mem_ctx)
+ ir_dereference_record(ir->rhs->clone(mem_ctx, NULL),
+ type->fields.structure[i].name);
+ }
+
+ ir->insert_before(new(mem_ctx) ir_assignment(new_lhs,
+ new_rhs,
+ NULL));
+ }
+ ir->remove();
+ } else {
+ handle_rvalue(&ir->rhs);
+ split_deref(&ir->lhs);
+ }
+
+ handle_rvalue(&ir->condition);
+
+ return visit_continue;
+}
+
+bool
+do_structure_splitting(exec_list *instructions)
+{
+ ir_structure_reference_visitor refs;
+
+ visit_list_elements(&refs, instructions);
+
+ /* Trim out variables we can't split. */
+ foreach_iter(exec_list_iterator, iter, refs.variable_list) {
+ variable_entry2 *entry = (variable_entry2 *)iter.get();
+
+ if (debug) {
+ printf("structure %s@%p: decl %d, whole_access %d\n",
+ entry->var->name, (void *) entry->var, entry->declaration,
+ entry->whole_structure_access);
+ }
+
+ if (!entry->declaration || entry->whole_structure_access) {
+ entry->remove();
+ }
+ }
+
+ if (refs.variable_list.is_empty())
+ return false;
+
+ void *mem_ctx = talloc_new(NULL);
+
+ /* Replace the decls of the structures to be split with their split
+ * components.
+ */
+ foreach_iter(exec_list_iterator, iter, refs.variable_list) {
+ variable_entry2 *entry = (variable_entry2 *)iter.get();
+ const struct glsl_type *type = entry->var->type;
+
+ entry->mem_ctx = talloc_parent(entry->var);
+
+ entry->components = talloc_array(mem_ctx,
+ ir_variable *,
+ type->length);
+
+ for (unsigned int i = 0; i < entry->var->type->length; i++) {
+ const char *name = talloc_asprintf(mem_ctx, "%s_%s",
+ entry->var->name,
+ type->fields.structure[i].name);
+
+ entry->components[i] =
+ new(entry->mem_ctx) ir_variable(type->fields.structure[i].type,
+ name,
+ ir_var_temporary);
+ entry->var->insert_before(entry->components[i]);
+ }
+
+ entry->var->remove();
+ }
+
+ ir_structure_splitting_visitor split(&refs.variable_list);
+ visit_list_elements(&split, instructions);
+
+ talloc_free(mem_ctx);
+
+ return true;
+}
diff --git a/mesalib/src/glsl/ir_sub_to_add_neg.cpp b/mesalib/src/glsl/ir_sub_to_add_neg.cpp
new file mode 100644
index 000000000..7ed8c1495
--- /dev/null
+++ b/mesalib/src/glsl/ir_sub_to_add_neg.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_sub_to_add_neg.cpp
+ *
+ * Breaks an ir_binop_sub expression down to add(op0, neg(op1))
+ *
+ * This simplifies expression reassociation, and for many backends
+ * there is no subtract operation separate from adding the negation.
+ * For backends with native subtract operations, they will probably
+ * want to recognize add(op0, neg(op1)) or the other way around to
+ * produce a subtract anyway.
+ */
+
+#include "ir.h"
+
+class ir_sub_to_add_neg_visitor : public ir_hierarchical_visitor {
+public:
+ ir_sub_to_add_neg_visitor()
+ {
+ this->progress = false;
+ }
+
+ ir_visitor_status visit_leave(ir_expression *);
+
+ bool progress;
+};
+
+bool
+do_sub_to_add_neg(exec_list *instructions)
+{
+ ir_sub_to_add_neg_visitor v;
+
+ visit_list_elements(&v, instructions);
+ return v.progress;
+}
+
+ir_visitor_status
+ir_sub_to_add_neg_visitor::visit_leave(ir_expression *ir)
+{
+ if (ir->operation != ir_binop_sub)
+ return visit_continue;
+
+ void *mem_ctx = talloc_parent(ir);
+
+ ir->operation = ir_binop_add;
+ ir->operands[1] = new(mem_ctx) ir_expression(ir_unop_neg,
+ ir->operands[1]->type,
+ ir->operands[1],
+ NULL);
+
+ this->progress = true;
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_swizzle_swizzle.cpp b/mesalib/src/glsl/ir_swizzle_swizzle.cpp
new file mode 100644
index 000000000..0ffb4fa31
--- /dev/null
+++ b/mesalib/src/glsl/ir_swizzle_swizzle.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_swizzle_swizzle.cpp
+ *
+ * Eliminates the second swizzle in a swizzle chain.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+class ir_swizzle_swizzle_visitor : public ir_hierarchical_visitor {
+public:
+ ir_swizzle_swizzle_visitor()
+ {
+ progress = false;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_swizzle *);
+
+ bool progress;
+};
+
+ir_visitor_status
+ir_swizzle_swizzle_visitor::visit_enter(ir_swizzle *ir)
+{
+ int mask2[4];
+
+ ir_swizzle *swiz2 = ir->val->as_swizzle();
+ if (!swiz2)
+ return visit_continue;
+
+ memset(&mask2, 0, sizeof(mask2));
+ if (swiz2->mask.num_components >= 1)
+ mask2[0] = swiz2->mask.x;
+ if (swiz2->mask.num_components >= 2)
+ mask2[1] = swiz2->mask.y;
+ if (swiz2->mask.num_components >= 3)
+ mask2[2] = swiz2->mask.z;
+ if (swiz2->mask.num_components >= 4)
+ mask2[3] = swiz2->mask.w;
+
+ if (ir->mask.num_components >= 1)
+ ir->mask.x = mask2[ir->mask.x];
+ if (ir->mask.num_components >= 2)
+ ir->mask.y = mask2[ir->mask.y];
+ if (ir->mask.num_components >= 3)
+ ir->mask.z = mask2[ir->mask.z];
+ if (ir->mask.num_components >= 4)
+ ir->mask.w = mask2[ir->mask.w];
+
+ ir->val = swiz2->val;
+
+ this->progress = true;
+
+ return visit_continue;
+}
+
+/**
+ * Does a copy propagation pass on the code present in the instruction stream.
+ */
+bool
+do_swizzle_swizzle(exec_list *instructions)
+{
+ ir_swizzle_swizzle_visitor v;
+
+ v.run(instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_tree_grafting.cpp b/mesalib/src/glsl/ir_tree_grafting.cpp
new file mode 100644
index 000000000..9b569b828
--- /dev/null
+++ b/mesalib/src/glsl/ir_tree_grafting.cpp
@@ -0,0 +1,367 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_tree_grafting.cpp
+ *
+ * Takes assignments to variables that are dereferenced only once and
+ * pastes the RHS expression into where the variable is dereferenced.
+ *
+ * In the process of various operations like function inlining and
+ * tertiary op handling, we'll end up with our expression trees having
+ * been chopped up into a series of assignments of short expressions
+ * to temps. Other passes like ir_algebraic.cpp would prefer to see
+ * the deepest expression trees they can to try to optimize them.
+ *
+ * This is a lot like copy propagaton. In comparison, copy
+ * propagation only acts on plain copies, not arbitrary expressions on
+ * the RHS. Generally, we wouldn't want to go pasting some
+ * complicated expression everywhere it got used, though, so we don't
+ * handle expressions in that pass.
+ *
+ * The hard part is making sure we don't move an expression across
+ * some other assignments that would change the value of the
+ * expression. So we split this into two passes: First, find the
+ * variables in our scope which are written to once and read once, and
+ * then go through basic blocks seeing if we find an opportunity to
+ * move those expressions safely.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_variable_refcount.h"
+#include "ir_basic_block.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+static bool debug = false;
+
+class ir_tree_grafting_visitor : public ir_hierarchical_visitor {
+public:
+ ir_tree_grafting_visitor(ir_assignment *graft_assign,
+ ir_variable *graft_var)
+ {
+ this->progress = false;
+ this->graft_assign = graft_assign;
+ this->graft_var = graft_var;
+ }
+
+ virtual ir_visitor_status visit_leave(class ir_assignment *);
+ virtual ir_visitor_status visit_enter(class ir_call *);
+ virtual ir_visitor_status visit_enter(class ir_expression *);
+ virtual ir_visitor_status visit_enter(class ir_function *);
+ virtual ir_visitor_status visit_enter(class ir_function_signature *);
+ virtual ir_visitor_status visit_enter(class ir_if *);
+ virtual ir_visitor_status visit_enter(class ir_loop *);
+ virtual ir_visitor_status visit_enter(class ir_swizzle *);
+ virtual ir_visitor_status visit_enter(class ir_texture *);
+
+ bool do_graft(ir_rvalue **rvalue);
+
+ bool progress;
+ ir_variable *graft_var;
+ ir_assignment *graft_assign;
+};
+
+struct find_deref_info {
+ ir_variable *var;
+ bool found;
+};
+
+void
+dereferences_variable_callback(ir_instruction *ir, void *data)
+{
+ struct find_deref_info *info = (struct find_deref_info *)data;
+ ir_dereference_variable *deref = ir->as_dereference_variable();
+
+ if (deref && deref->var == info->var)
+ info->found = true;
+}
+
+static bool
+dereferences_variable(ir_instruction *ir, ir_variable *var)
+{
+ struct find_deref_info info;
+
+ info.var = var;
+ info.found = false;
+
+ visit_tree(ir, dereferences_variable_callback, &info);
+
+ return info.found;
+}
+
+bool
+ir_tree_grafting_visitor::do_graft(ir_rvalue **rvalue)
+{
+ if (!*rvalue)
+ return false;
+
+ ir_dereference_variable *deref = (*rvalue)->as_dereference_variable();
+
+ if (!deref || deref->var != this->graft_var)
+ return false;
+
+ if (debug) {
+ printf("GRAFTING:\n");
+ this->graft_assign->print();
+ printf("\n");
+ printf("TO:\n");
+ (*rvalue)->print();
+ printf("\n");
+ }
+
+ this->graft_assign->remove();
+ *rvalue = this->graft_assign->rhs;
+
+ this->progress = true;
+ return true;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_loop *ir)
+{
+ (void)ir;
+ /* Do not traverse into the body of the loop since that is a
+ * different basic block.
+ */
+ return visit_stop;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_leave(ir_assignment *ir)
+{
+ if (do_graft(&ir->rhs) ||
+ do_graft(&ir->condition))
+ return visit_stop;
+
+ /* If this assignment updates a variable used in the assignment
+ * we're trying to graft, then we're done.
+ */
+ if (dereferences_variable(this->graft_assign->rhs,
+ ir->lhs->variable_referenced())) {
+ if (debug) {
+ printf("graft killed by: ");
+ ir->print();
+ printf("\n");
+ }
+ return visit_stop;
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_function *ir)
+{
+ (void) ir;
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_function_signature *ir)
+{
+ (void)ir;
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_call *ir)
+{
+ exec_list_iterator sig_iter = ir->get_callee()->parameters.iterator();
+ /* Reminder: iterating ir_call iterates its parameters. */
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_variable *sig_param = (ir_variable *)sig_iter.get();
+ ir_rvalue *ir = (ir_rvalue *)iter.get();
+ ir_rvalue *new_ir = ir;
+
+ if (sig_param->mode != ir_var_in)
+ continue;
+
+ if (do_graft(&new_ir)) {
+ ir->replace_with(new_ir);
+ return visit_stop;
+ }
+ sig_iter.next();
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_expression *ir)
+{
+ for (unsigned int i = 0; i < ir->get_num_operands(); i++) {
+ if (do_graft(&ir->operands[i]))
+ return visit_stop;
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_if *ir)
+{
+ if (do_graft(&ir->condition))
+ return visit_stop;
+
+ /* Do not traverse into the body of the if-statement since that is a
+ * different basic block.
+ */
+ return visit_continue_with_parent;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_swizzle *ir)
+{
+ if (do_graft(&ir->val))
+ return visit_stop;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_tree_grafting_visitor::visit_enter(ir_texture *ir)
+{
+ if (do_graft(&ir->coordinate) ||
+ do_graft(&ir->projector) ||
+ do_graft(&ir->shadow_comparitor))
+ return visit_stop;
+
+ switch (ir->op) {
+ case ir_tex:
+ break;
+ case ir_txb:
+ if (do_graft(&ir->lod_info.bias))
+ return visit_stop;
+ break;
+ case ir_txf:
+ case ir_txl:
+ if (do_graft(&ir->lod_info.lod))
+ return visit_stop;
+ break;
+ case ir_txd:
+ if (do_graft(&ir->lod_info.grad.dPdx) ||
+ do_graft(&ir->lod_info.grad.dPdy))
+ return visit_stop;
+ break;
+ }
+
+ return visit_continue;
+}
+
+struct tree_grafting_info {
+ ir_variable_refcount_visitor *refs;
+ bool progress;
+};
+
+static bool
+try_tree_grafting(ir_assignment *start,
+ ir_variable *lhs_var,
+ ir_instruction *bb_last)
+{
+ ir_tree_grafting_visitor v(start, lhs_var);
+
+ if (debug) {
+ printf("trying to graft: ");
+ lhs_var->print();
+ printf("\n");
+ }
+
+ for (ir_instruction *ir = (ir_instruction *)start->next;
+ ir != bb_last->next;
+ ir = (ir_instruction *)ir->next) {
+
+ if (debug) {
+ printf("- ");
+ ir->print();
+ printf("\n");
+ }
+
+ ir_visitor_status s = ir->accept(&v);
+ if (s == visit_stop)
+ return v.progress;
+ }
+
+ return false;
+}
+
+static void
+tree_grafting_basic_block(ir_instruction *bb_first,
+ ir_instruction *bb_last,
+ void *data)
+{
+ struct tree_grafting_info *info = (struct tree_grafting_info *)data;
+ ir_instruction *ir, *next;
+
+ for (ir = bb_first, next = (ir_instruction *)ir->next;
+ ir != bb_last->next;
+ ir = next, next = (ir_instruction *)ir->next) {
+ ir_assignment *assign = ir->as_assignment();
+
+ if (!assign)
+ continue;
+
+ ir_variable *lhs_var = assign->whole_variable_written();
+ if (!lhs_var)
+ continue;
+
+ if (lhs_var->mode == ir_var_out ||
+ lhs_var->mode == ir_var_inout)
+ continue;
+
+ variable_entry *entry = info->refs->get_variable_entry(lhs_var);
+
+ if (!entry->declaration ||
+ entry->assigned_count != 1 ||
+ entry->referenced_count != 2)
+ continue;
+
+ assert(assign == entry->assign);
+
+ /* Found a possibly graftable assignment. Now, walk through the
+ * rest of the BB seeing if the deref is here, and if nothing interfered with
+ * pasting its expression's values in between.
+ */
+ info->progress |= try_tree_grafting(assign, lhs_var, bb_last);
+ }
+}
+
+/**
+ * Does a copy propagation pass on the code present in the instruction stream.
+ */
+bool
+do_tree_grafting(exec_list *instructions)
+{
+ ir_variable_refcount_visitor refs;
+ struct tree_grafting_info info;
+
+ info.progress = false;
+ info.refs = &refs;
+
+ visit_list_elements(info.refs, instructions);
+
+ call_for_basic_blocks(instructions, tree_grafting_basic_block, &info);
+
+ return info.progress;
+}
diff --git a/mesalib/src/glsl/ir_validate.cpp b/mesalib/src/glsl/ir_validate.cpp
new file mode 100644
index 000000000..e35514aa6
--- /dev/null
+++ b/mesalib/src/glsl/ir_validate.cpp
@@ -0,0 +1,452 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_validate.cpp
+ *
+ * Attempts to verify that various invariants of the IR tree are true.
+ *
+ * In particular, at the moment it makes sure that no single
+ * ir_instruction node except for ir_variable appears multiple times
+ * in the ir tree. ir_variable does appear multiple times: Once as a
+ * declaration in an exec_list, and multiple times as the endpoint of
+ * a dereference chain.
+ */
+
+#include <inttypes.h>
+#include "ir.h"
+#include "ir_hierarchical_visitor.h"
+#include "program/hash_table.h"
+#include "glsl_types.h"
+
+class ir_validate : public ir_hierarchical_visitor {
+public:
+ ir_validate()
+ {
+ this->ht = hash_table_ctor(0, hash_table_pointer_hash,
+ hash_table_pointer_compare);
+
+ this->current_function = NULL;
+
+ this->callback = ir_validate::validate_ir;
+ this->data = ht;
+ }
+
+ ~ir_validate()
+ {
+ hash_table_dtor(this->ht);
+ }
+
+ virtual ir_visitor_status visit(ir_variable *v);
+ virtual ir_visitor_status visit(ir_dereference_variable *ir);
+ virtual ir_visitor_status visit(ir_if *ir);
+
+ virtual ir_visitor_status visit_leave(ir_loop *ir);
+ virtual ir_visitor_status visit_enter(ir_function *ir);
+ virtual ir_visitor_status visit_leave(ir_function *ir);
+ virtual ir_visitor_status visit_enter(ir_function_signature *ir);
+
+ virtual ir_visitor_status visit_leave(ir_expression *ir);
+
+ virtual ir_visitor_status visit_enter(ir_assignment *ir);
+
+ static void validate_ir(ir_instruction *ir, void *data);
+
+ ir_function *current_function;
+
+ struct hash_table *ht;
+};
+
+
+ir_visitor_status
+ir_validate::visit(ir_dereference_variable *ir)
+{
+ if ((ir->var == NULL) || (ir->var->as_variable() == NULL)) {
+ printf("ir_dereference_variable @ %p does not specify a variable %p\n",
+ (void *) ir, (void *) ir->var);
+ abort();
+ }
+
+ if (hash_table_find(ht, ir->var) == NULL) {
+ printf("ir_dereference_variable @ %p specifies undeclared variable "
+ "`%s' @ %p\n",
+ (void *) ir, ir->var->name, (void *) ir->var);
+ abort();
+ }
+
+ this->validate_ir(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_validate::visit(ir_if *ir)
+{
+ if (ir->condition->type != glsl_type::bool_type) {
+ printf("ir_if condition %s type instead of bool.\n",
+ ir->condition->type->name);
+ ir->print();
+ printf("\n");
+ abort();
+ }
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_validate::visit_leave(ir_loop *ir)
+{
+ if (ir->counter != NULL) {
+ if ((ir->from == NULL) || (ir->from == NULL) || (ir->increment == NULL)) {
+ printf("ir_loop has invalid loop controls:\n"
+ " counter: %p\n"
+ " from: %p\n"
+ " to: %p\n"
+ " increment: %p\n",
+ (void *) ir->counter, (void *) ir->from, (void *) ir->to,
+ (void *) ir->increment);
+ abort();
+ }
+
+ if ((ir->cmp < ir_binop_less) || (ir->cmp > ir_binop_nequal)) {
+ printf("ir_loop has invalid comparitor %d\n", ir->cmp);
+ abort();
+ }
+ } else {
+ if ((ir->from != NULL) || (ir->from != NULL) || (ir->increment != NULL)) {
+ printf("ir_loop has invalid loop controls:\n"
+ " counter: %p\n"
+ " from: %p\n"
+ " to: %p\n"
+ " increment: %p\n",
+ (void *) ir->counter, (void *) ir->from, (void *) ir->to,
+ (void *) ir->increment);
+ abort();
+ }
+ }
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_validate::visit_enter(ir_function *ir)
+{
+ /* Function definitions cannot be nested.
+ */
+ if (this->current_function != NULL) {
+ printf("Function definition nested inside another function "
+ "definition:\n");
+ printf("%s %p inside %s %p\n",
+ ir->name, (void *) ir,
+ this->current_function->name, (void *) this->current_function);
+ abort();
+ }
+
+ /* Store the current function hierarchy being traversed. This is used
+ * by the function signature visitor to ensure that the signatures are
+ * linked with the correct functions.
+ */
+ this->current_function = ir;
+
+ this->validate_ir(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_validate::visit_leave(ir_function *ir)
+{
+ assert(talloc_parent(ir->name) == ir);
+
+ this->current_function = NULL;
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_validate::visit_enter(ir_function_signature *ir)
+{
+ if (this->current_function != ir->function()) {
+ printf("Function signature nested inside wrong function "
+ "definition:\n");
+ printf("%p inside %s %p instead of %s %p\n",
+ (void *) ir,
+ this->current_function->name, (void *) this->current_function,
+ ir->function_name(), (void *) ir->function());
+ abort();
+ }
+
+ this->validate_ir(ir, this->data);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_validate::visit_leave(ir_expression *ir)
+{
+ switch (ir->operation) {
+ case ir_unop_bit_not:
+ assert(ir->operands[0]->type == ir->type);
+ break;
+ case ir_unop_logic_not:
+ assert(ir->type->base_type == GLSL_TYPE_BOOL);
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL);
+ break;
+
+ case ir_unop_neg:
+ case ir_unop_abs:
+ case ir_unop_sign:
+ case ir_unop_rcp:
+ case ir_unop_rsq:
+ case ir_unop_sqrt:
+ assert(ir->type == ir->operands[0]->type);
+ break;
+
+ case ir_unop_exp:
+ case ir_unop_log:
+ case ir_unop_exp2:
+ case ir_unop_log2:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT);
+ assert(ir->type == ir->operands[0]->type);
+ break;
+
+ case ir_unop_f2i:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT);
+ assert(ir->type->base_type == GLSL_TYPE_INT);
+ break;
+ case ir_unop_i2f:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_INT);
+ assert(ir->type->base_type == GLSL_TYPE_FLOAT);
+ break;
+ case ir_unop_f2b:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT);
+ assert(ir->type->base_type == GLSL_TYPE_BOOL);
+ break;
+ case ir_unop_b2f:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL);
+ assert(ir->type->base_type == GLSL_TYPE_FLOAT);
+ break;
+ case ir_unop_i2b:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_INT);
+ assert(ir->type->base_type == GLSL_TYPE_BOOL);
+ break;
+ case ir_unop_b2i:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL);
+ assert(ir->type->base_type == GLSL_TYPE_INT);
+ break;
+ case ir_unop_u2f:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_UINT);
+ assert(ir->type->base_type == GLSL_TYPE_FLOAT);
+ break;
+
+ case ir_unop_any:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_BOOL);
+ assert(ir->type == glsl_type::bool_type);
+ break;
+
+ case ir_unop_trunc:
+ case ir_unop_ceil:
+ case ir_unop_floor:
+ case ir_unop_fract:
+ case ir_unop_sin:
+ case ir_unop_cos:
+ case ir_unop_dFdx:
+ case ir_unop_dFdy:
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT);
+ assert(ir->operands[0]->type == ir->type);
+ break;
+
+ case ir_unop_noise:
+ /* XXX what can we assert here? */
+ break;
+
+ case ir_binop_add:
+ case ir_binop_sub:
+ case ir_binop_mul:
+ case ir_binop_div:
+ case ir_binop_mod:
+ case ir_binop_min:
+ case ir_binop_max:
+ case ir_binop_pow:
+ if (ir->operands[0]->type->is_scalar())
+ assert(ir->operands[1]->type == ir->type);
+ else if (ir->operands[1]->type->is_scalar())
+ assert(ir->operands[0]->type == ir->type);
+ else if (ir->operands[0]->type->is_vector() &&
+ ir->operands[1]->type->is_vector()) {
+ assert(ir->operands[0]->type == ir->operands[1]->type);
+ assert(ir->operands[0]->type == ir->type);
+ }
+ break;
+
+ case ir_binop_less:
+ case ir_binop_greater:
+ case ir_binop_lequal:
+ case ir_binop_gequal:
+ case ir_binop_equal:
+ case ir_binop_nequal:
+ /* The semantics of the IR operators differ from the GLSL <, >, <=, >=,
+ * ==, and != operators. The IR operators perform a component-wise
+ * comparison on scalar or vector types and return a boolean scalar or
+ * vector type of the same size.
+ */
+ assert(ir->type->base_type == GLSL_TYPE_BOOL);
+ assert(ir->operands[0]->type == ir->operands[1]->type);
+ assert(ir->operands[0]->type->is_vector()
+ || ir->operands[0]->type->is_scalar());
+ assert(ir->operands[0]->type->vector_elements
+ == ir->type->vector_elements);
+ break;
+
+ case ir_binop_all_equal:
+ case ir_binop_any_nequal:
+ /* GLSL == and != operate on scalars, vectors, matrices and arrays, and
+ * return a scalar boolean. The IR matches that.
+ */
+ assert(ir->type == glsl_type::bool_type);
+ assert(ir->operands[0]->type == ir->operands[1]->type);
+ break;
+
+ case ir_binop_lshift:
+ case ir_binop_rshift:
+ case ir_binop_bit_and:
+ case ir_binop_bit_xor:
+ case ir_binop_bit_or:
+ assert(ir->operands[0]->type == ir->operands[1]->type);
+ assert(ir->type == ir->operands[0]->type);
+ assert(ir->type->base_type == GLSL_TYPE_INT ||
+ ir->type->base_type == GLSL_TYPE_UINT);
+ break;
+
+ case ir_binop_logic_and:
+ case ir_binop_logic_xor:
+ case ir_binop_logic_or:
+ assert(ir->type == glsl_type::bool_type);
+ assert(ir->operands[0]->type == glsl_type::bool_type);
+ assert(ir->operands[1]->type == glsl_type::bool_type);
+ break;
+
+ case ir_binop_dot:
+ assert(ir->type == glsl_type::float_type);
+ assert(ir->operands[0]->type->base_type == GLSL_TYPE_FLOAT);
+ assert(ir->operands[0]->type->is_vector());
+ assert(ir->operands[0]->type == ir->operands[1]->type);
+ break;
+
+ case ir_binop_cross:
+ assert(ir->operands[0]->type == glsl_type::vec3_type);
+ assert(ir->operands[1]->type == glsl_type::vec3_type);
+ assert(ir->type == glsl_type::vec3_type);
+ break;
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_validate::visit(ir_variable *ir)
+{
+ /* An ir_variable is the one thing that can (and will) appear multiple times
+ * in an IR tree. It is added to the hashtable so that it can be used
+ * in the ir_dereference_variable handler to ensure that a variable is
+ * declared before it is dereferenced.
+ */
+ if (ir->name)
+ assert(talloc_parent(ir->name) == ir);
+
+ hash_table_insert(ht, ir, ir);
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_validate::visit_enter(ir_assignment *ir)
+{
+ const ir_dereference *const lhs = ir->lhs;
+ if (lhs->type->is_scalar() || lhs->type->is_vector()) {
+ if (ir->write_mask == 0) {
+ printf("Assignment LHS is %s, but write mask is 0:\n",
+ lhs->type->is_scalar() ? "scalar" : "vector");
+ ir->print();
+ abort();
+ }
+
+ int lhs_components = 0;
+ for (int i = 0; i < 4; i++) {
+ if (ir->write_mask & (1 << i))
+ lhs_components++;
+ }
+
+ if (lhs_components != ir->rhs->type->vector_elements) {
+ printf("Assignment count of LHS write mask channels enabled not\n"
+ "matching RHS vector size (%d LHS, %d RHS).\n",
+ lhs_components, ir->rhs->type->vector_elements);
+ ir->print();
+ abort();
+ }
+ }
+
+ this->validate_ir(ir, this->data);
+
+ return visit_continue;
+}
+
+void
+ir_validate::validate_ir(ir_instruction *ir, void *data)
+{
+ struct hash_table *ht = (struct hash_table *) data;
+
+ if (hash_table_find(ht, ir)) {
+ printf("Instruction node present twice in ir tree:\n");
+ ir->print();
+ printf("\n");
+ abort();
+ }
+ hash_table_insert(ht, ir, ir);
+}
+
+void
+check_node_type(ir_instruction *ir, void *data)
+{
+ (void) data;
+
+ if (ir->ir_type <= ir_type_unset || ir->ir_type >= ir_type_max) {
+ printf("Instruction node with unset type\n");
+ ir->print(); printf("\n");
+ }
+ assert(ir->type != glsl_type::error_type);
+}
+
+void
+validate_ir_tree(exec_list *instructions)
+{
+ ir_validate v;
+
+ v.run(instructions);
+
+ foreach_iter(exec_list_iterator, iter, *instructions) {
+ ir_instruction *ir = (ir_instruction *)iter.get();
+
+ visit_tree(ir, check_node_type, NULL);
+ }
+}
diff --git a/mesalib/src/glsl/ir_variable.cpp b/mesalib/src/glsl/ir_variable.cpp
new file mode 100644
index 000000000..1eff740ef
--- /dev/null
+++ b/mesalib/src/glsl/ir_variable.cpp
@@ -0,0 +1,493 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ir.h"
+#include "glsl_parser_extras.h"
+#include "glsl_symbol_table.h"
+#include "builtin_variables.h"
+
+static void generate_ARB_draw_buffers_variables(exec_list *,
+ struct _mesa_glsl_parse_state *,
+ bool, _mesa_glsl_parser_targets);
+
+static ir_variable *
+add_variable(const char *name, enum ir_variable_mode mode, int slot,
+ const glsl_type *type, exec_list *instructions,
+ glsl_symbol_table *symtab)
+{
+ ir_variable *var = new(symtab) ir_variable(type, name, mode);
+
+ switch (var->mode) {
+ case ir_var_auto:
+ case ir_var_in:
+ case ir_var_uniform:
+ var->read_only = true;
+ break;
+ case ir_var_inout:
+ case ir_var_out:
+ break;
+ default:
+ assert(0);
+ break;
+ }
+
+ var->location = slot;
+
+ /* Once the variable is created an initialized, add it to the symbol table
+ * and add the declaration to the IR stream.
+ */
+ instructions->push_tail(var);
+
+ symtab->add_variable(var->name, var);
+ return var;
+}
+
+static ir_variable *
+add_uniform(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state,
+ const char *name, const glsl_type *type)
+{
+ return add_variable(name, ir_var_uniform, -1, type, instructions,
+ state->symbols);
+}
+
+static void
+add_builtin_variable(const builtin_variable *proto, exec_list *instructions,
+ glsl_symbol_table *symtab)
+{
+ /* Create a new variable declaration from the description supplied by
+ * the caller.
+ */
+ const glsl_type *const type = symtab->get_type(proto->type);
+
+ assert(type != NULL);
+
+ add_variable(proto->name, proto->mode, proto->slot, type, instructions,
+ symtab);
+}
+
+static void
+add_builtin_constant(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state,
+ const char *name, int value)
+{
+ ir_variable *const var = add_variable(name, ir_var_auto,
+ -1, glsl_type::int_type,
+ instructions, state->symbols);
+ var->constant_value = new(var) ir_constant(value);
+}
+
+/* Several constants in GLSL ES have different names than normal desktop GLSL.
+ * Therefore, this function should only be called on the ES path.
+ */
+static void
+generate_100ES_uniforms(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ add_builtin_constant(instructions, state, "gl_MaxVertexAttribs",
+ state->Const.MaxVertexAttribs);
+ add_builtin_constant(instructions, state, "gl_MaxVertexUniformVectors",
+ state->Const.MaxVertexUniformComponents);
+ add_builtin_constant(instructions, state, "gl_MaxVaryingVectors",
+ state->Const.MaxVaryingFloats / 4);
+ add_builtin_constant(instructions, state, "gl_MaxVertexTextureImageUnits",
+ state->Const.MaxVertexTextureImageUnits);
+ add_builtin_constant(instructions, state, "gl_MaxCombinedTextureImageUnits",
+ state->Const.MaxCombinedTextureImageUnits);
+ add_builtin_constant(instructions, state, "gl_MaxTextureImageUnits",
+ state->Const.MaxTextureImageUnits);
+ add_builtin_constant(instructions, state, "gl_MaxFragmentUniformVectors",
+ state->Const.MaxFragmentUniformComponents);
+
+ add_uniform(instructions, state, "gl_DepthRange",
+ state->symbols->get_type("gl_DepthRangeParameters"));
+}
+
+static void
+generate_110_uniforms(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ for (unsigned i = 0
+ ; i < Elements(builtin_110_deprecated_uniforms)
+ ; i++) {
+ add_builtin_variable(& builtin_110_deprecated_uniforms[i],
+ instructions, state->symbols);
+ }
+
+ add_builtin_constant(instructions, state, "gl_MaxLights",
+ state->Const.MaxLights);
+ add_builtin_constant(instructions, state, "gl_MaxClipPlanes",
+ state->Const.MaxClipPlanes);
+ add_builtin_constant(instructions, state, "gl_MaxTextureUnits",
+ state->Const.MaxTextureUnits);
+ add_builtin_constant(instructions, state, "gl_MaxTextureCoords",
+ state->Const.MaxTextureCoords);
+ add_builtin_constant(instructions, state, "gl_MaxVertexAttribs",
+ state->Const.MaxVertexAttribs);
+ add_builtin_constant(instructions, state, "gl_MaxVertexUniformComponents",
+ state->Const.MaxVertexUniformComponents);
+ add_builtin_constant(instructions, state, "gl_MaxVaryingFloats",
+ state->Const.MaxVaryingFloats);
+ add_builtin_constant(instructions, state, "gl_MaxVertexTextureImageUnits",
+ state->Const.MaxVertexTextureImageUnits);
+ add_builtin_constant(instructions, state, "gl_MaxCombinedTextureImageUnits",
+ state->Const.MaxCombinedTextureImageUnits);
+ add_builtin_constant(instructions, state, "gl_MaxTextureImageUnits",
+ state->Const.MaxTextureImageUnits);
+ add_builtin_constant(instructions, state, "gl_MaxFragmentUniformComponents",
+ state->Const.MaxFragmentUniformComponents);
+
+ const glsl_type *const mat4_array_type =
+ glsl_type::get_array_instance(glsl_type::mat4_type,
+ state->Const.MaxTextureCoords);
+
+ add_uniform(instructions, state, "gl_TextureMatrix", mat4_array_type);
+ add_uniform(instructions, state, "gl_TextureMatrixInverse", mat4_array_type);
+ add_uniform(instructions, state, "gl_TextureMatrixTranspose", mat4_array_type);
+ add_uniform(instructions, state, "gl_TextureMatrixInverseTranspose", mat4_array_type);
+
+ add_uniform(instructions, state, "gl_DepthRange",
+ state->symbols->get_type("gl_DepthRangeParameters"));
+
+ add_uniform(instructions, state, "gl_ClipPlane",
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxClipPlanes));
+ add_uniform(instructions, state, "gl_Point",
+ state->symbols->get_type("gl_PointParameters"));
+
+ const glsl_type *const material_parameters_type =
+ state->symbols->get_type("gl_MaterialParameters");
+ add_uniform(instructions, state, "gl_FrontMaterial", material_parameters_type);
+ add_uniform(instructions, state, "gl_BackMaterial", material_parameters_type);
+
+ const glsl_type *const light_source_array_type =
+ glsl_type::get_array_instance(state->symbols->get_type("gl_LightSourceParameters"), state->Const.MaxLights);
+
+ add_uniform(instructions, state, "gl_LightSource", light_source_array_type);
+
+ const glsl_type *const light_model_products_type =
+ state->symbols->get_type("gl_LightModelProducts");
+ add_uniform(instructions, state, "gl_FrontLightModelProduct",
+ light_model_products_type);
+ add_uniform(instructions, state, "gl_BackLightModelProduct",
+ light_model_products_type);
+
+ const glsl_type *const light_products_type =
+ glsl_type::get_array_instance(state->symbols->get_type("gl_LightProducts"),
+ state->Const.MaxLights);
+ add_uniform(instructions, state, "gl_FrontLightProduct", light_products_type);
+ add_uniform(instructions, state, "gl_BackLightProduct", light_products_type);
+
+ add_uniform(instructions, state, "gl_TextureEnvColor",
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxTextureUnits));
+
+ const glsl_type *const texcoords_vec4 =
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxTextureCoords);
+ add_uniform(instructions, state, "gl_EyePlaneS", texcoords_vec4);
+ add_uniform(instructions, state, "gl_EyePlaneT", texcoords_vec4);
+ add_uniform(instructions, state, "gl_EyePlaneR", texcoords_vec4);
+ add_uniform(instructions, state, "gl_EyePlaneQ", texcoords_vec4);
+ add_uniform(instructions, state, "gl_ObjectPlaneS", texcoords_vec4);
+ add_uniform(instructions, state, "gl_ObjectPlaneT", texcoords_vec4);
+ add_uniform(instructions, state, "gl_ObjectPlaneR", texcoords_vec4);
+ add_uniform(instructions, state, "gl_ObjectPlaneQ", texcoords_vec4);
+
+ add_uniform(instructions, state, "gl_Fog",
+ state->symbols->get_type("gl_FogParameters"));
+}
+
+/* This function should only be called for ES, not desktop GL. */
+static void
+generate_100ES_vs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ for (unsigned i = 0; i < Elements(builtin_core_vs_variables); i++) {
+ add_builtin_variable(& builtin_core_vs_variables[i],
+ instructions, state->symbols);
+ }
+
+ generate_100ES_uniforms(instructions, state);
+
+ generate_ARB_draw_buffers_variables(instructions, state, false,
+ vertex_shader);
+}
+
+
+static void
+generate_110_vs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ for (unsigned i = 0; i < Elements(builtin_core_vs_variables); i++) {
+ add_builtin_variable(& builtin_core_vs_variables[i],
+ instructions, state->symbols);
+ }
+
+ for (unsigned i = 0
+ ; i < Elements(builtin_110_deprecated_vs_variables)
+ ; i++) {
+ add_builtin_variable(& builtin_110_deprecated_vs_variables[i],
+ instructions, state->symbols);
+ }
+ generate_110_uniforms(instructions, state);
+
+ /* From page 54 (page 60 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "As with all arrays, indices used to subscript gl_TexCoord must
+ * either be an integral constant expressions, or this array must be
+ * re-declared by the shader with a size. The size can be at most
+ * gl_MaxTextureCoords. Using indexes close to 0 may aid the
+ * implementation in preserving varying resources."
+ */
+ const glsl_type *const vec4_array_type =
+ glsl_type::get_array_instance(glsl_type::vec4_type, 0);
+
+ add_variable("gl_TexCoord", ir_var_out, VERT_RESULT_TEX0, vec4_array_type,
+ instructions, state->symbols);
+
+ generate_ARB_draw_buffers_variables(instructions, state, false,
+ vertex_shader);
+}
+
+
+static void
+generate_120_vs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ /* GLSL version 1.20 did not add any built-in variables in the vertex
+ * shader.
+ */
+ generate_110_vs_variables(instructions, state);
+}
+
+
+static void
+generate_130_vs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ generate_120_vs_variables(instructions, state);
+
+ for (unsigned i = 0; i < Elements(builtin_130_vs_variables); i++) {
+ add_builtin_variable(& builtin_130_vs_variables[i],
+ instructions, state->symbols);
+ }
+
+ const glsl_type *const clip_distance_array_type =
+ glsl_type::get_array_instance(glsl_type::float_type,
+ state->Const.MaxClipPlanes);
+
+ /* FINISHME: gl_ClipDistance needs a real location assigned. */
+ add_variable("gl_ClipDistance", ir_var_out, -1, clip_distance_array_type,
+ instructions, state->symbols);
+
+}
+
+
+static void
+initialize_vs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+
+ switch (state->language_version) {
+ case 100:
+ generate_100ES_vs_variables(instructions, state);
+ break;
+ case 110:
+ generate_110_vs_variables(instructions, state);
+ break;
+ case 120:
+ generate_120_vs_variables(instructions, state);
+ break;
+ case 130:
+ generate_130_vs_variables(instructions, state);
+ break;
+ }
+}
+
+/* This function should only be called for ES, not desktop GL. */
+static void
+generate_100ES_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ for (unsigned i = 0; i < Elements(builtin_core_fs_variables); i++) {
+ add_builtin_variable(& builtin_core_fs_variables[i],
+ instructions, state->symbols);
+ }
+
+ for (unsigned i = 0; i < Elements(builtin_100ES_fs_variables); i++) {
+ add_builtin_variable(& builtin_100ES_fs_variables[i],
+ instructions, state->symbols);
+ }
+
+ generate_100ES_uniforms(instructions, state);
+
+ generate_ARB_draw_buffers_variables(instructions, state, false,
+ fragment_shader);
+}
+
+static void
+generate_110_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ for (unsigned i = 0; i < Elements(builtin_core_fs_variables); i++) {
+ add_builtin_variable(& builtin_core_fs_variables[i],
+ instructions, state->symbols);
+ }
+
+ for (unsigned i = 0; i < Elements(builtin_110_fs_variables); i++) {
+ add_builtin_variable(& builtin_110_fs_variables[i],
+ instructions, state->symbols);
+ }
+
+ for (unsigned i = 0
+ ; i < Elements(builtin_110_deprecated_fs_variables)
+ ; i++) {
+ add_builtin_variable(& builtin_110_deprecated_fs_variables[i],
+ instructions, state->symbols);
+ }
+ generate_110_uniforms(instructions, state);
+
+ /* From page 54 (page 60 of the PDF) of the GLSL 1.20 spec:
+ *
+ * "As with all arrays, indices used to subscript gl_TexCoord must
+ * either be an integral constant expressions, or this array must be
+ * re-declared by the shader with a size. The size can be at most
+ * gl_MaxTextureCoords. Using indexes close to 0 may aid the
+ * implementation in preserving varying resources."
+ */
+ const glsl_type *const vec4_array_type =
+ glsl_type::get_array_instance(glsl_type::vec4_type, 0);
+
+ add_variable("gl_TexCoord", ir_var_in, FRAG_ATTRIB_TEX0, vec4_array_type,
+ instructions, state->symbols);
+
+ generate_ARB_draw_buffers_variables(instructions, state, false,
+ fragment_shader);
+}
+
+
+static void
+generate_ARB_draw_buffers_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state,
+ bool warn, _mesa_glsl_parser_targets target)
+{
+ /* gl_MaxDrawBuffers is available in all shader stages.
+ */
+ ir_variable *const mdb =
+ add_variable("gl_MaxDrawBuffers", ir_var_auto, -1,
+ glsl_type::int_type, instructions, state->symbols);
+
+ if (warn)
+ mdb->warn_extension = "GL_ARB_draw_buffers";
+
+ mdb->constant_value = new(mdb)
+ ir_constant(int(state->Const.MaxDrawBuffers));
+
+
+ /* gl_FragData is only available in the fragment shader.
+ */
+ if (target == fragment_shader) {
+ const glsl_type *const vec4_array_type =
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxDrawBuffers);
+
+ ir_variable *const fd =
+ add_variable("gl_FragData", ir_var_out, FRAG_RESULT_DATA0,
+ vec4_array_type, instructions, state->symbols);
+
+ if (warn)
+ fd->warn_extension = "GL_ARB_draw_buffers";
+ }
+}
+
+
+static void
+generate_120_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ generate_110_fs_variables(instructions, state);
+
+ for (unsigned i = 0
+ ; i < Elements(builtin_120_fs_variables)
+ ; i++) {
+ add_builtin_variable(& builtin_120_fs_variables[i],
+ instructions, state->symbols);
+ }
+}
+
+static void
+generate_130_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ generate_120_fs_variables(instructions, state);
+
+ const glsl_type *const clip_distance_array_type =
+ glsl_type::get_array_instance(glsl_type::float_type,
+ state->Const.MaxClipPlanes);
+
+ /* FINISHME: gl_ClipDistance needs a real location assigned. */
+ add_variable("gl_ClipDistance", ir_var_in, -1, clip_distance_array_type,
+ instructions, state->symbols);
+}
+
+static void
+initialize_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+
+ switch (state->language_version) {
+ case 100:
+ generate_100ES_fs_variables(instructions, state);
+ break;
+ case 110:
+ generate_110_fs_variables(instructions, state);
+ break;
+ case 120:
+ generate_120_fs_variables(instructions, state);
+ break;
+ case 130:
+ generate_130_fs_variables(instructions, state);
+ break;
+ }
+}
+
+void
+_mesa_glsl_initialize_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ switch (state->target) {
+ case vertex_shader:
+ initialize_vs_variables(instructions, state);
+ break;
+ case geometry_shader:
+ break;
+ case fragment_shader:
+ initialize_fs_variables(instructions, state);
+ break;
+ case ir_shader:
+ fprintf(stderr, "ir reader has no builtin variables");
+ exit(1);
+ break;
+ }
+}
diff --git a/mesalib/src/glsl/ir_variable_refcount.cpp b/mesalib/src/glsl/ir_variable_refcount.cpp
new file mode 100644
index 000000000..7d39abb36
--- /dev/null
+++ b/mesalib/src/glsl/ir_variable_refcount.cpp
@@ -0,0 +1,113 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_variable_refcount.cpp
+ *
+ * Provides a visitor which produces a list of variables referenced,
+ * how many times they were referenced and assigned, and whether they
+ * were defined in the scope.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_variable_refcount.h"
+#include "glsl_types.h"
+
+
+// constructor
+variable_entry::variable_entry(ir_variable *var)
+{
+ this->var = var;
+ assign = NULL;
+ assigned_count = 0;
+ declaration = false;
+ referenced_count = 0;
+}
+
+
+variable_entry *
+ir_variable_refcount_visitor::get_variable_entry(ir_variable *var)
+{
+ assert(var);
+ foreach_iter(exec_list_iterator, iter, this->variable_list) {
+ variable_entry *entry = (variable_entry *)iter.get();
+ if (entry->var == var)
+ return entry;
+ }
+
+ variable_entry *entry = new(mem_ctx) variable_entry(var);
+ assert(entry->referenced_count == 0);
+ this->variable_list.push_tail(entry);
+ return entry;
+}
+
+
+ir_visitor_status
+ir_variable_refcount_visitor::visit(ir_variable *ir)
+{
+ variable_entry *entry = this->get_variable_entry(ir);
+ if (entry)
+ entry->declaration = true;
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_variable_refcount_visitor::visit(ir_dereference_variable *ir)
+{
+ ir_variable *const var = ir->variable_referenced();
+ variable_entry *entry = this->get_variable_entry(var);
+
+ if (entry)
+ entry->referenced_count++;
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+ir_variable_refcount_visitor::visit_enter(ir_function_signature *ir)
+{
+ /* We don't want to descend into the function parameters and
+ * dead-code eliminate them, so just accept the body here.
+ */
+ visit_list_elements(this, &ir->body);
+ return visit_continue_with_parent;
+}
+
+
+ir_visitor_status
+ir_variable_refcount_visitor::visit_leave(ir_assignment *ir)
+{
+ variable_entry *entry;
+ entry = this->get_variable_entry(ir->lhs->variable_referenced());
+ if (entry) {
+ entry->assigned_count++;
+ if (entry->assign == NULL)
+ entry->assign = ir;
+ }
+
+ return visit_continue;
+}
diff --git a/mesalib/src/glsl/ir_variable_refcount.h b/mesalib/src/glsl/ir_variable_refcount.h
new file mode 100644
index 000000000..8b43bad71
--- /dev/null
+++ b/mesalib/src/glsl/ir_variable_refcount.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_variable_refcount.h
+ *
+ * Provides a visitor which produces a list of variables referenced,
+ * how many times they were referenced and assigned, and whether they
+ * were defined in the scope.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "glsl_types.h"
+
+class variable_entry : public exec_node
+{
+public:
+ variable_entry(ir_variable *var);
+
+ ir_variable *var; /* The key: the variable's pointer. */
+ ir_assignment *assign; /* An assignment to the variable, if any */
+
+ /** Number of times the variable is referenced, including assignments. */
+ unsigned referenced_count;
+
+ /** Number of times the variable is assigned. */
+ unsigned assigned_count;
+
+ bool declaration; /* If the variable had a decl in the instruction stream */
+};
+
+class ir_variable_refcount_visitor : public ir_hierarchical_visitor {
+public:
+ ir_variable_refcount_visitor(void)
+ {
+ this->mem_ctx = talloc_new(NULL);
+ this->variable_list.make_empty();
+ }
+
+ ~ir_variable_refcount_visitor(void)
+ {
+ talloc_free(this->mem_ctx);
+ }
+
+ virtual ir_visitor_status visit(ir_variable *);
+ virtual ir_visitor_status visit(ir_dereference_variable *);
+
+ virtual ir_visitor_status visit_enter(ir_function_signature *);
+ virtual ir_visitor_status visit_leave(ir_assignment *);
+
+ variable_entry *get_variable_entry(ir_variable *var);
+
+ /* List of variable_entry */
+ exec_list variable_list;
+
+ void *mem_ctx;
+};
diff --git a/mesalib/src/glsl/ir_vec_index_to_cond_assign.cpp b/mesalib/src/glsl/ir_vec_index_to_cond_assign.cpp
new file mode 100644
index 000000000..cd8dedf2f
--- /dev/null
+++ b/mesalib/src/glsl/ir_vec_index_to_cond_assign.cpp
@@ -0,0 +1,258 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_vec_index_to_cond_assign.cpp
+ *
+ * Turns indexing into vector types to a series of conditional moves
+ * of each channel's swizzle into a temporary.
+ *
+ * Most GPUs don't have a native way to do this operation, and this
+ * works around that. For drivers using both this pass and
+ * ir_vec_index_to_swizzle, there's a risk that this pass will happen
+ * before sufficient constant folding to find that the array index is
+ * constant. However, we hope that other optimization passes,
+ * particularly constant folding of assignment conditions and copy
+ * propagation, will result in the same code in the end.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+/**
+ * Visitor class for replacing expressions with ir_constant values.
+ */
+
+class ir_vec_index_to_cond_assign_visitor : public ir_hierarchical_visitor {
+public:
+ ir_vec_index_to_cond_assign_visitor()
+ {
+ progress = false;
+ }
+
+ ir_rvalue *convert_vec_index_to_cond_assign(ir_rvalue *val);
+
+ virtual ir_visitor_status visit_enter(ir_expression *);
+ virtual ir_visitor_status visit_enter(ir_swizzle *);
+ virtual ir_visitor_status visit_leave(ir_assignment *);
+ virtual ir_visitor_status visit_enter(ir_return *);
+ virtual ir_visitor_status visit_enter(ir_call *);
+ virtual ir_visitor_status visit_enter(ir_if *);
+
+ bool progress;
+};
+
+ir_rvalue *
+ir_vec_index_to_cond_assign_visitor::convert_vec_index_to_cond_assign(ir_rvalue *ir)
+{
+ ir_dereference_array *orig_deref = ir->as_dereference_array();
+ ir_assignment *assign;
+ ir_variable *index, *var;
+ ir_dereference *deref;
+ ir_expression *condition;
+ ir_swizzle *swizzle;
+ int i;
+
+ if (!orig_deref)
+ return ir;
+
+ if (orig_deref->array->type->is_matrix() ||
+ orig_deref->array->type->is_array())
+ return ir;
+
+ void *mem_ctx = talloc_parent(ir);
+
+ assert(orig_deref->array_index->type->base_type == GLSL_TYPE_INT);
+
+ /* Store the index to a temporary to avoid reusing its tree. */
+ index = new(base_ir) ir_variable(glsl_type::int_type,
+ "vec_index_tmp_i",
+ ir_var_temporary);
+ base_ir->insert_before(index);
+ deref = new(base_ir) ir_dereference_variable(index);
+ assign = new(base_ir) ir_assignment(deref, orig_deref->array_index, NULL);
+ base_ir->insert_before(assign);
+
+ /* Temporary where we store whichever value we swizzle out. */
+ var = new(base_ir) ir_variable(ir->type, "vec_index_tmp_v",
+ ir_var_temporary);
+ base_ir->insert_before(var);
+
+ /* Generate a conditional move of each vector element to the temp. */
+ for (i = 0; i < orig_deref->array->type->vector_elements; i++) {
+ deref = new(base_ir) ir_dereference_variable(index);
+ condition = new(base_ir) ir_expression(ir_binop_equal,
+ glsl_type::bool_type,
+ deref,
+ new(base_ir) ir_constant(i));
+
+ /* Just clone the rest of the deref chain when trying to get at the
+ * underlying variable.
+ */
+ swizzle = new(base_ir) ir_swizzle(orig_deref->array->clone(mem_ctx, NULL),
+ i, 0, 0, 0, 1);
+
+ deref = new(base_ir) ir_dereference_variable(var);
+ assign = new(base_ir) ir_assignment(deref, swizzle, condition);
+ base_ir->insert_before(assign);
+ }
+
+ this->progress = true;
+ return new(base_ir) ir_dereference_variable(var);
+}
+
+ir_visitor_status
+ir_vec_index_to_cond_assign_visitor::visit_enter(ir_expression *ir)
+{
+ unsigned int i;
+
+ for (i = 0; i < ir->get_num_operands(); i++) {
+ ir->operands[i] = convert_vec_index_to_cond_assign(ir->operands[i]);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_cond_assign_visitor::visit_enter(ir_swizzle *ir)
+{
+ /* Can't be hit from normal GLSL, since you can't swizzle a scalar (which
+ * the result of indexing a vector is. But maybe at some point we'll end up
+ * using swizzling of scalars for vector construction.
+ */
+ ir->val = convert_vec_index_to_cond_assign(ir->val);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_cond_assign_visitor::visit_leave(ir_assignment *ir)
+{
+ ir_variable *index, *var;
+ ir_dereference_variable *deref;
+ ir_assignment *assign;
+ int i;
+
+ ir->rhs = convert_vec_index_to_cond_assign(ir->rhs);
+ if (ir->condition)
+ ir->condition = convert_vec_index_to_cond_assign(ir->condition);
+
+ /* Last, handle the LHS */
+ ir_dereference_array *orig_deref = ir->lhs->as_dereference_array();
+
+ if (!orig_deref ||
+ orig_deref->array->type->is_matrix() ||
+ orig_deref->array->type->is_array())
+ return visit_continue;
+
+ void *mem_ctx = talloc_parent(ir);
+
+ assert(orig_deref->array_index->type->base_type == GLSL_TYPE_INT);
+
+ /* Store the index to a temporary to avoid reusing its tree. */
+ index = new(ir) ir_variable(glsl_type::int_type, "vec_index_tmp_i",
+ ir_var_temporary);
+ ir->insert_before(index);
+ deref = new(ir) ir_dereference_variable(index);
+ assign = new(ir) ir_assignment(deref, orig_deref->array_index, NULL);
+ ir->insert_before(assign);
+
+ /* Store the RHS to a temporary to avoid reusing its tree. */
+ var = new(ir) ir_variable(ir->rhs->type, "vec_index_tmp_v",
+ ir_var_temporary);
+ ir->insert_before(var);
+ deref = new(ir) ir_dereference_variable(var);
+ assign = new(ir) ir_assignment(deref, ir->rhs, NULL);
+ ir->insert_before(assign);
+
+ /* Generate a conditional move of each vector element to the temp. */
+ for (i = 0; i < orig_deref->array->type->vector_elements; i++) {
+ ir_rvalue *condition, *swizzle;
+
+ deref = new(ir) ir_dereference_variable(index);
+ condition = new(ir) ir_expression(ir_binop_equal,
+ glsl_type::bool_type,
+ deref,
+ new(ir) ir_constant(i));
+
+ /* Just clone the rest of the deref chain when trying to get at the
+ * underlying variable.
+ */
+ swizzle = new(ir) ir_swizzle(orig_deref->array->clone(mem_ctx, NULL),
+ i, 0, 0, 0, 1);
+
+ deref = new(ir) ir_dereference_variable(var);
+ assign = new(ir) ir_assignment(swizzle, deref, condition);
+ ir->insert_before(assign);
+ }
+ ir->remove();
+
+ this->progress = true;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_cond_assign_visitor::visit_enter(ir_call *ir)
+{
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param = (ir_rvalue *)iter.get();
+ ir_rvalue *new_param = convert_vec_index_to_cond_assign(param);
+
+ if (new_param != param) {
+ param->replace_with(new_param);
+ }
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_cond_assign_visitor::visit_enter(ir_return *ir)
+{
+ if (ir->value) {
+ ir->value = convert_vec_index_to_cond_assign(ir->value);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_cond_assign_visitor::visit_enter(ir_if *ir)
+{
+ ir->condition = convert_vec_index_to_cond_assign(ir->condition);
+
+ return visit_continue;
+}
+
+bool
+do_vec_index_to_cond_assign(exec_list *instructions)
+{
+ ir_vec_index_to_cond_assign_visitor v;
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_vec_index_to_swizzle.cpp b/mesalib/src/glsl/ir_vec_index_to_swizzle.cpp
new file mode 100644
index 000000000..969dc8f94
--- /dev/null
+++ b/mesalib/src/glsl/ir_vec_index_to_swizzle.cpp
@@ -0,0 +1,157 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file ir_vec_index_to_swizzle.cpp
+ *
+ * Turns constant indexing into vector types to swizzles. This will
+ * let other swizzle-aware optimization passes catch these constructs,
+ * and codegen backends not have to worry about this case.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+
+/**
+ * Visitor class for replacing expressions with ir_constant values.
+ */
+
+class ir_vec_index_to_swizzle_visitor : public ir_hierarchical_visitor {
+public:
+ ir_vec_index_to_swizzle_visitor()
+ {
+ progress = false;
+ }
+
+ ir_rvalue *convert_vec_index_to_swizzle(ir_rvalue *val);
+
+ virtual ir_visitor_status visit_enter(ir_expression *);
+ virtual ir_visitor_status visit_enter(ir_swizzle *);
+ virtual ir_visitor_status visit_enter(ir_assignment *);
+ virtual ir_visitor_status visit_enter(ir_return *);
+ virtual ir_visitor_status visit_enter(ir_call *);
+ virtual ir_visitor_status visit_enter(ir_if *);
+
+ bool progress;
+};
+
+ir_rvalue *
+ir_vec_index_to_swizzle_visitor::convert_vec_index_to_swizzle(ir_rvalue *ir)
+{
+ ir_dereference_array *deref = ir->as_dereference_array();
+ ir_constant *ir_constant;
+
+ if (!deref)
+ return ir;
+
+ if (deref->array->type->is_matrix() || deref->array->type->is_array())
+ return ir;
+
+ assert(deref->array_index->type->base_type == GLSL_TYPE_INT);
+ ir_constant = deref->array_index->constant_expression_value();
+ if (!ir_constant)
+ return ir;
+
+ void *ctx = talloc_parent(ir);
+ this->progress = true;
+ return new(ctx) ir_swizzle(deref->array,
+ ir_constant->value.i[0], 0, 0, 0, 1);
+}
+
+ir_visitor_status
+ir_vec_index_to_swizzle_visitor::visit_enter(ir_expression *ir)
+{
+ unsigned int i;
+
+ for (i = 0; i < ir->get_num_operands(); i++) {
+ ir->operands[i] = convert_vec_index_to_swizzle(ir->operands[i]);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_swizzle_visitor::visit_enter(ir_swizzle *ir)
+{
+ /* Can't be hit from normal GLSL, since you can't swizzle a scalar (which
+ * the result of indexing a vector is. But maybe at some point we'll end up
+ * using swizzling of scalars for vector construction.
+ */
+ ir->val = convert_vec_index_to_swizzle(ir->val);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_swizzle_visitor::visit_enter(ir_assignment *ir)
+{
+ ir->set_lhs(convert_vec_index_to_swizzle(ir->lhs));
+ ir->rhs = convert_vec_index_to_swizzle(ir->rhs);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_swizzle_visitor::visit_enter(ir_call *ir)
+{
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param = (ir_rvalue *)iter.get();
+ ir_rvalue *new_param = convert_vec_index_to_swizzle(param);
+
+ if (new_param != param) {
+ param->replace_with(new_param);
+ }
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_swizzle_visitor::visit_enter(ir_return *ir)
+{
+ if (ir->value) {
+ ir->value = convert_vec_index_to_swizzle(ir->value);
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+ir_vec_index_to_swizzle_visitor::visit_enter(ir_if *ir)
+{
+ ir->condition = convert_vec_index_to_swizzle(ir->condition);
+
+ return visit_continue;
+}
+
+bool
+do_vec_index_to_swizzle(exec_list *instructions)
+{
+ ir_vec_index_to_swizzle_visitor v;
+
+ v.run(instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/ir_visitor.h b/mesalib/src/glsl/ir_visitor.h
new file mode 100644
index 000000000..7dd35fe1d
--- /dev/null
+++ b/mesalib/src/glsl/ir_visitor.h
@@ -0,0 +1,84 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_VISITOR_H
+#define IR_VISITOR_H
+
+/**
+ * Abstract base class of visitors of IR instruction trees
+ */
+class ir_visitor {
+public:
+ virtual ~ir_visitor()
+ {
+ /* empty */
+ }
+
+ /**
+ * \name Visit methods
+ *
+ * As typical for the visitor pattern, there must be one \c visit method for
+ * each concrete subclass of \c ir_instruction. Virtual base classes within
+ * the hierarchy should not have \c visit methods.
+ */
+ /*@{*/
+ virtual void visit(class ir_variable *) = 0;
+ virtual void visit(class ir_function_signature *) = 0;
+ virtual void visit(class ir_function *) = 0;
+ virtual void visit(class ir_expression *) = 0;
+ virtual void visit(class ir_texture *) = 0;
+ virtual void visit(class ir_swizzle *) = 0;
+ virtual void visit(class ir_dereference_variable *) = 0;
+ virtual void visit(class ir_dereference_array *) = 0;
+ virtual void visit(class ir_dereference_record *) = 0;
+ virtual void visit(class ir_assignment *) = 0;
+ virtual void visit(class ir_constant *) = 0;
+ virtual void visit(class ir_call *) = 0;
+ virtual void visit(class ir_return *) = 0;
+ virtual void visit(class ir_discard *) = 0;
+ virtual void visit(class ir_if *) = 0;
+ virtual void visit(class ir_loop *) = 0;
+ virtual void visit(class ir_loop_jump *) = 0;
+ /*@}*/
+};
+
+/* NOTE: function calls may never return due to discards inside them
+ * This is usually not an issue, but if it is, keep it in mind
+ */
+class ir_control_flow_visitor : public ir_visitor {
+public:
+ virtual void visit(class ir_variable *) {}
+ virtual void visit(class ir_expression *) {}
+ virtual void visit(class ir_texture *) {}
+ virtual void visit(class ir_swizzle *) {}
+ virtual void visit(class ir_dereference_variable *) {}
+ virtual void visit(class ir_dereference_array *) {}
+ virtual void visit(class ir_dereference_record *) {}
+ virtual void visit(class ir_assignment *) {}
+ virtual void visit(class ir_constant *) {}
+ virtual void visit(class ir_call *) {}
+};
+
+#endif /* IR_VISITOR_H */
diff --git a/mesalib/src/glsl/link_functions.cpp b/mesalib/src/glsl/link_functions.cpp
new file mode 100644
index 000000000..78c8b48cf
--- /dev/null
+++ b/mesalib/src/glsl/link_functions.cpp
@@ -0,0 +1,262 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <cstdlib>
+#include <cstdio>
+#include <cstdarg>
+
+extern "C" {
+#include <talloc.h>
+}
+
+#include "main/core.h"
+#include "glsl_symbol_table.h"
+#include "glsl_parser_extras.h"
+#include "ir.h"
+#include "program.h"
+#include "program/hash_table.h"
+#include "linker.h"
+
+static ir_function_signature *
+find_matching_signature(const char *name, const exec_list *actual_parameters,
+ gl_shader **shader_list, unsigned num_shaders);
+
+class call_link_visitor : public ir_hierarchical_visitor {
+public:
+ call_link_visitor(gl_shader_program *prog, gl_shader *linked,
+ gl_shader **shader_list, unsigned num_shaders)
+ {
+ this->prog = prog;
+ this->shader_list = shader_list;
+ this->num_shaders = num_shaders;
+ this->success = true;
+ this->linked = linked;
+
+ this->locals = hash_table_ctor(0, hash_table_pointer_hash,
+ hash_table_pointer_compare);
+ }
+
+ ~call_link_visitor()
+ {
+ hash_table_dtor(this->locals);
+ }
+
+ virtual ir_visitor_status visit(ir_variable *ir)
+ {
+ hash_table_insert(locals, ir, ir);
+ return visit_continue;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_call *ir)
+ {
+ /* If ir is an ir_call from a function that was imported from another
+ * shader callee will point to an ir_function_signature in the original
+ * shader. In this case the function signature MUST NOT BE MODIFIED.
+ * Doing so will modify the original shader. This may prevent that
+ * shader from being linkable in other programs.
+ */
+ const ir_function_signature *const callee = ir->get_callee();
+ assert(callee != NULL);
+ const char *const name = callee->function_name();
+
+ /* Determine if the requested function signature already exists in the
+ * final linked shader. If it does, use it as the target of the call.
+ */
+ ir_function_signature *sig =
+ find_matching_signature(name, &callee->parameters, &linked, 1);
+ if (sig != NULL) {
+ ir->set_callee(sig);
+ return visit_continue;
+ }
+
+ /* Try to find the signature in one of the other shaders that is being
+ * linked. If it's not found there, return an error.
+ */
+ sig = find_matching_signature(name, &ir->actual_parameters, shader_list,
+ num_shaders);
+ if (sig == NULL) {
+ /* FINISHME: Log the full signature of unresolved function.
+ */
+ linker_error_printf(this->prog, "unresolved reference to function "
+ "`%s'\n", name);
+ this->success = false;
+ return visit_stop;
+ }
+
+ /* Find the prototype information in the linked shader. Generate any
+ * details that may be missing.
+ */
+ ir_function *f = linked->symbols->get_function(name);
+ if (f == NULL)
+ f = new(linked) ir_function(name);
+
+ ir_function_signature *linked_sig =
+ f->exact_matching_signature(&callee->parameters);
+ if (linked_sig == NULL) {
+ linked_sig = new(linked) ir_function_signature(callee->return_type);
+ f->add_signature(linked_sig);
+ }
+
+ /* At this point linked_sig and called may be the same. If ir is an
+ * ir_call from linked then linked_sig and callee will be
+ * ir_function_signatures that have no definitions (is_defined is false).
+ */
+ assert(!linked_sig->is_defined);
+ assert(linked_sig->body.is_empty());
+
+ /* Create an in-place clone of the function definition. This multistep
+ * process introduces some complexity here, but it has some advantages.
+ * The parameter list and the and function body are cloned separately.
+ * The clone of the parameter list is used to prime the hashtable used
+ * to replace variable references in the cloned body.
+ *
+ * The big advantage is that the ir_function_signature does not change.
+ * This means that we don't have to process the rest of the IR tree to
+ * patch ir_call nodes. In addition, there is no way to remove or
+ * replace signature stored in a function. One could easily be added,
+ * but this avoids the need.
+ */
+ struct hash_table *ht = hash_table_ctor(0, hash_table_pointer_hash,
+ hash_table_pointer_compare);
+ exec_list formal_parameters;
+ foreach_list_const(node, &sig->parameters) {
+ const ir_instruction *const original = (ir_instruction *) node;
+ assert(const_cast<ir_instruction *>(original)->as_variable());
+
+ ir_instruction *copy = original->clone(linked, ht);
+ formal_parameters.push_tail(copy);
+ }
+
+ linked_sig->replace_parameters(&formal_parameters);
+
+ foreach_list_const(node, &sig->body) {
+ const ir_instruction *const original = (ir_instruction *) node;
+
+ ir_instruction *copy = original->clone(linked, ht);
+ linked_sig->body.push_tail(copy);
+ }
+
+ linked_sig->is_defined = true;
+ hash_table_dtor(ht);
+
+ /* Patch references inside the function to things outside the function
+ * (i.e., function calls and global variables).
+ */
+ linked_sig->accept(this);
+
+ ir->set_callee(linked_sig);
+
+ return visit_continue;
+ }
+
+ virtual ir_visitor_status visit(ir_dereference_variable *ir)
+ {
+ if (hash_table_find(locals, ir->var) == NULL) {
+ /* The non-function variable must be a global, so try to find the
+ * variable in the shader's symbol table. If the variable is not
+ * found, then it's a global that *MUST* be defined in the original
+ * shader.
+ */
+ ir_variable *var = linked->symbols->get_variable(ir->var->name);
+ if (var == NULL) {
+ /* Clone the ir_variable that the dereference already has and add
+ * it to the linked shader.
+ */
+ var = ir->var->clone(linked, NULL);
+ linked->symbols->add_variable(var->name, var);
+ linked->ir->push_head(var);
+ }
+
+ ir->var = var;
+ }
+
+ return visit_continue;
+ }
+
+ /** Was function linking successful? */
+ bool success;
+
+private:
+ /**
+ * Shader program being linked
+ *
+ * This is only used for logging error messages.
+ */
+ gl_shader_program *prog;
+
+ /** List of shaders available for linking. */
+ gl_shader **shader_list;
+
+ /** Number of shaders available for linking. */
+ unsigned num_shaders;
+
+ /**
+ * Final linked shader
+ *
+ * This is used two ways. It is used to find global variables in the
+ * linked shader that are accessed by the function. It is also used to add
+ * global variables from the shader where the function originated.
+ */
+ gl_shader *linked;
+
+ /**
+ * Table of variables local to the function.
+ */
+ hash_table *locals;
+};
+
+
+/**
+ * Searches a list of shaders for a particular function definition
+ */
+ir_function_signature *
+find_matching_signature(const char *name, const exec_list *actual_parameters,
+ gl_shader **shader_list, unsigned num_shaders)
+{
+ for (unsigned i = 0; i < num_shaders; i++) {
+ ir_function *const f = shader_list[i]->symbols->get_function(name);
+
+ if (f == NULL)
+ continue;
+
+ ir_function_signature *sig = f->matching_signature(actual_parameters);
+
+ if ((sig == NULL) || !sig->is_defined)
+ continue;
+
+ return sig;
+ }
+
+ return NULL;
+}
+
+
+bool
+link_function_calls(gl_shader_program *prog, gl_shader *main,
+ gl_shader **shader_list, unsigned num_shaders)
+{
+ call_link_visitor v(prog, main, shader_list, num_shaders);
+
+ v.run(main->ir);
+ return v.success;
+}
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
new file mode 100644
index 000000000..4bb4e2a99
--- /dev/null
+++ b/mesalib/src/glsl/linker.cpp
@@ -0,0 +1,1505 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file linker.cpp
+ * GLSL linker implementation
+ *
+ * Given a set of shaders that are to be linked to generate a final program,
+ * there are three distinct stages.
+ *
+ * In the first stage shaders are partitioned into groups based on the shader
+ * type. All shaders of a particular type (e.g., vertex shaders) are linked
+ * together.
+ *
+ * - Undefined references in each shader are resolve to definitions in
+ * another shader.
+ * - Types and qualifiers of uniforms, outputs, and global variables defined
+ * in multiple shaders with the same name are verified to be the same.
+ * - Initializers for uniforms and global variables defined
+ * in multiple shaders with the same name are verified to be the same.
+ *
+ * The result, in the terminology of the GLSL spec, is a set of shader
+ * executables for each processing unit.
+ *
+ * After the first stage is complete, a series of semantic checks are performed
+ * on each of the shader executables.
+ *
+ * - Each shader executable must define a \c main function.
+ * - Each vertex shader executable must write to \c gl_Position.
+ * - Each fragment shader executable must write to either \c gl_FragData or
+ * \c gl_FragColor.
+ *
+ * In the final stage individual shader executables are linked to create a
+ * complete exectuable.
+ *
+ * - Types of uniforms defined in multiple shader stages with the same name
+ * are verified to be the same.
+ * - Initializers for uniforms defined in multiple shader stages with the
+ * same name are verified to be the same.
+ * - Types and qualifiers of outputs defined in one stage are verified to
+ * be the same as the types and qualifiers of inputs defined with the same
+ * name in a later stage.
+ *
+ * \author Ian Romanick <ian.d.romanick@intel.com>
+ */
+#include <cstdlib>
+#include <cstdio>
+#include <cstdarg>
+#include <climits>
+
+extern "C" {
+#include <talloc.h>
+}
+
+#include "main/core.h"
+#include "glsl_symbol_table.h"
+#include "ir.h"
+#include "program.h"
+#include "program/hash_table.h"
+#include "linker.h"
+#include "ir_optimization.h"
+
+/**
+ * Visitor that determines whether or not a variable is ever written.
+ */
+class find_assignment_visitor : public ir_hierarchical_visitor {
+public:
+ find_assignment_visitor(const char *name)
+ : name(name), found(false)
+ {
+ /* empty */
+ }
+
+ virtual ir_visitor_status visit_enter(ir_assignment *ir)
+ {
+ ir_variable *const var = ir->lhs->variable_referenced();
+
+ if (strcmp(name, var->name) == 0) {
+ found = true;
+ return visit_stop;
+ }
+
+ return visit_continue_with_parent;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_call *ir)
+ {
+ exec_list_iterator sig_iter = ir->get_callee()->parameters.iterator();
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param_rval = (ir_rvalue *)iter.get();
+ ir_variable *sig_param = (ir_variable *)sig_iter.get();
+
+ if (sig_param->mode == ir_var_out ||
+ sig_param->mode == ir_var_inout) {
+ ir_variable *var = param_rval->variable_referenced();
+ if (var && strcmp(name, var->name) == 0) {
+ found = true;
+ return visit_stop;
+ }
+ }
+ sig_iter.next();
+ }
+
+ return visit_continue_with_parent;
+ }
+
+ bool variable_found()
+ {
+ return found;
+ }
+
+private:
+ const char *name; /**< Find writes to a variable with this name. */
+ bool found; /**< Was a write to the variable found? */
+};
+
+
+/**
+ * Visitor that determines whether or not a variable is ever read.
+ */
+class find_deref_visitor : public ir_hierarchical_visitor {
+public:
+ find_deref_visitor(const char *name)
+ : name(name), found(false)
+ {
+ /* empty */
+ }
+
+ virtual ir_visitor_status visit(ir_dereference_variable *ir)
+ {
+ if (strcmp(this->name, ir->var->name) == 0) {
+ this->found = true;
+ return visit_stop;
+ }
+
+ return visit_continue;
+ }
+
+ bool variable_found() const
+ {
+ return this->found;
+ }
+
+private:
+ const char *name; /**< Find writes to a variable with this name. */
+ bool found; /**< Was a write to the variable found? */
+};
+
+
+void
+linker_error_printf(gl_shader_program *prog, const char *fmt, ...)
+{
+ va_list ap;
+
+ prog->InfoLog = talloc_strdup_append(prog->InfoLog, "error: ");
+ va_start(ap, fmt);
+ prog->InfoLog = talloc_vasprintf_append(prog->InfoLog, fmt, ap);
+ va_end(ap);
+}
+
+
+void
+invalidate_variable_locations(gl_shader *sh, enum ir_variable_mode mode,
+ int generic_base)
+{
+ foreach_list(node, sh->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if ((var == NULL) || (var->mode != (unsigned) mode))
+ continue;
+
+ /* Only assign locations for generic attributes / varyings / etc.
+ */
+ if (var->location >= generic_base)
+ var->location = -1;
+ }
+}
+
+
+/**
+ * Determine the number of attribute slots required for a particular type
+ *
+ * This code is here because it implements the language rules of a specific
+ * GLSL version. Since it's a property of the language and not a property of
+ * types in general, it doesn't really belong in glsl_type.
+ */
+unsigned
+count_attribute_slots(const glsl_type *t)
+{
+ /* From page 31 (page 37 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "A scalar input counts the same amount against this limit as a vec4,
+ * so applications may want to consider packing groups of four
+ * unrelated float inputs together into a vector to better utilize the
+ * capabilities of the underlying hardware. A matrix input will use up
+ * multiple locations. The number of locations used will equal the
+ * number of columns in the matrix."
+ *
+ * The spec does not explicitly say how arrays are counted. However, it
+ * should be safe to assume the total number of slots consumed by an array
+ * is the number of entries in the array multiplied by the number of slots
+ * consumed by a single element of the array.
+ */
+
+ if (t->is_array())
+ return t->array_size() * count_attribute_slots(t->element_type());
+
+ if (t->is_matrix())
+ return t->matrix_columns;
+
+ return 1;
+}
+
+
+/**
+ * Verify that a vertex shader executable meets all semantic requirements
+ *
+ * \param shader Vertex shader executable to be verified
+ */
+bool
+validate_vertex_shader_executable(struct gl_shader_program *prog,
+ struct gl_shader *shader)
+{
+ if (shader == NULL)
+ return true;
+
+ find_assignment_visitor find("gl_Position");
+ find.run(shader->ir);
+ if (!find.variable_found()) {
+ linker_error_printf(prog,
+ "vertex shader does not write to `gl_Position'\n");
+ return false;
+ }
+
+ return true;
+}
+
+
+/**
+ * Verify that a fragment shader executable meets all semantic requirements
+ *
+ * \param shader Fragment shader executable to be verified
+ */
+bool
+validate_fragment_shader_executable(struct gl_shader_program *prog,
+ struct gl_shader *shader)
+{
+ if (shader == NULL)
+ return true;
+
+ find_assignment_visitor frag_color("gl_FragColor");
+ find_assignment_visitor frag_data("gl_FragData");
+
+ frag_color.run(shader->ir);
+ frag_data.run(shader->ir);
+
+ if (frag_color.variable_found() && frag_data.variable_found()) {
+ linker_error_printf(prog, "fragment shader writes to both "
+ "`gl_FragColor' and `gl_FragData'\n");
+ return false;
+ }
+
+ return true;
+}
+
+
+/**
+ * Generate a string describing the mode of a variable
+ */
+static const char *
+mode_string(const ir_variable *var)
+{
+ switch (var->mode) {
+ case ir_var_auto:
+ return (var->read_only) ? "global constant" : "global variable";
+
+ case ir_var_uniform: return "uniform";
+ case ir_var_in: return "shader input";
+ case ir_var_out: return "shader output";
+ case ir_var_inout: return "shader inout";
+
+ case ir_var_temporary:
+ default:
+ assert(!"Should not get here.");
+ return "invalid variable";
+ }
+}
+
+
+/**
+ * Perform validation of global variables used across multiple shaders
+ */
+bool
+cross_validate_globals(struct gl_shader_program *prog,
+ struct gl_shader **shader_list,
+ unsigned num_shaders,
+ bool uniforms_only)
+{
+ /* Examine all of the uniforms in all of the shaders and cross validate
+ * them.
+ */
+ glsl_symbol_table variables;
+ for (unsigned i = 0; i < num_shaders; i++) {
+ foreach_list(node, shader_list[i]->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if (var == NULL)
+ continue;
+
+ if (uniforms_only && (var->mode != ir_var_uniform))
+ continue;
+
+ /* Don't cross validate temporaries that are at global scope. These
+ * will eventually get pulled into the shaders 'main'.
+ */
+ if (var->mode == ir_var_temporary)
+ continue;
+
+ /* If a global with this name has already been seen, verify that the
+ * new instance has the same type. In addition, if the globals have
+ * initializers, the values of the initializers must be the same.
+ */
+ ir_variable *const existing = variables.get_variable(var->name);
+ if (existing != NULL) {
+ if (var->type != existing->type) {
+ /* Consider the types to be "the same" if both types are arrays
+ * of the same type and one of the arrays is implicitly sized.
+ * In addition, set the type of the linked variable to the
+ * explicitly sized array.
+ */
+ if (var->type->is_array()
+ && existing->type->is_array()
+ && (var->type->fields.array == existing->type->fields.array)
+ && ((var->type->length == 0)
+ || (existing->type->length == 0))) {
+ if (existing->type->length == 0)
+ existing->type = var->type;
+ } else {
+ linker_error_printf(prog, "%s `%s' declared as type "
+ "`%s' and type `%s'\n",
+ mode_string(var),
+ var->name, var->type->name,
+ existing->type->name);
+ return false;
+ }
+ }
+
+ /* FINISHME: Handle non-constant initializers.
+ */
+ if (var->constant_value != NULL) {
+ if (existing->constant_value != NULL) {
+ if (!var->constant_value->has_value(existing->constant_value)) {
+ linker_error_printf(prog, "initializers for %s "
+ "`%s' have differing values\n",
+ mode_string(var), var->name);
+ return false;
+ }
+ } else
+ /* If the first-seen instance of a particular uniform did not
+ * have an initializer but a later instance does, copy the
+ * initializer to the version stored in the symbol table.
+ */
+ /* FINISHME: This is wrong. The constant_value field should
+ * FINISHME: not be modified! Imagine a case where a shader
+ * FINISHME: without an initializer is linked in two different
+ * FINISHME: programs with shaders that have differing
+ * FINISHME: initializers. Linking with the first will
+ * FINISHME: modify the shader, and linking with the second
+ * FINISHME: will fail.
+ */
+ existing->constant_value =
+ var->constant_value->clone(talloc_parent(existing), NULL);
+ }
+ } else
+ variables.add_variable(var->name, var);
+ }
+ }
+
+ return true;
+}
+
+
+/**
+ * Perform validation of uniforms used across multiple shader stages
+ */
+bool
+cross_validate_uniforms(struct gl_shader_program *prog)
+{
+ return cross_validate_globals(prog, prog->_LinkedShaders,
+ prog->_NumLinkedShaders, true);
+}
+
+
+/**
+ * Validate that outputs from one stage match inputs of another
+ */
+bool
+cross_validate_outputs_to_inputs(struct gl_shader_program *prog,
+ gl_shader *producer, gl_shader *consumer)
+{
+ glsl_symbol_table parameters;
+ /* FINISHME: Figure these out dynamically. */
+ const char *const producer_stage = "vertex";
+ const char *const consumer_stage = "fragment";
+
+ /* Find all shader outputs in the "producer" stage.
+ */
+ foreach_list(node, producer->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ /* FINISHME: For geometry shaders, this should also look for inout
+ * FINISHME: variables.
+ */
+ if ((var == NULL) || (var->mode != ir_var_out))
+ continue;
+
+ parameters.add_variable(var->name, var);
+ }
+
+
+ /* Find all shader inputs in the "consumer" stage. Any variables that have
+ * matching outputs already in the symbol table must have the same type and
+ * qualifiers.
+ */
+ foreach_list(node, consumer->ir) {
+ ir_variable *const input = ((ir_instruction *) node)->as_variable();
+
+ /* FINISHME: For geometry shaders, this should also look for inout
+ * FINISHME: variables.
+ */
+ if ((input == NULL) || (input->mode != ir_var_in))
+ continue;
+
+ ir_variable *const output = parameters.get_variable(input->name);
+ if (output != NULL) {
+ /* Check that the types match between stages.
+ */
+ if (input->type != output->type) {
+ linker_error_printf(prog,
+ "%s shader output `%s' declared as "
+ "type `%s', but %s shader input declared "
+ "as type `%s'\n",
+ producer_stage, output->name,
+ output->type->name,
+ consumer_stage, input->type->name);
+ return false;
+ }
+
+ /* Check that all of the qualifiers match between stages.
+ */
+ if (input->centroid != output->centroid) {
+ linker_error_printf(prog,
+ "%s shader output `%s' %s centroid qualifier, "
+ "but %s shader input %s centroid qualifier\n",
+ producer_stage,
+ output->name,
+ (output->centroid) ? "has" : "lacks",
+ consumer_stage,
+ (input->centroid) ? "has" : "lacks");
+ return false;
+ }
+
+ if (input->invariant != output->invariant) {
+ linker_error_printf(prog,
+ "%s shader output `%s' %s invariant qualifier, "
+ "but %s shader input %s invariant qualifier\n",
+ producer_stage,
+ output->name,
+ (output->invariant) ? "has" : "lacks",
+ consumer_stage,
+ (input->invariant) ? "has" : "lacks");
+ return false;
+ }
+
+ if (input->interpolation != output->interpolation) {
+ linker_error_printf(prog,
+ "%s shader output `%s' specifies %s "
+ "interpolation qualifier, "
+ "but %s shader input specifies %s "
+ "interpolation qualifier\n",
+ producer_stage,
+ output->name,
+ output->interpolation_string(),
+ consumer_stage,
+ input->interpolation_string());
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+
+/**
+ * Populates a shaders symbol table with all global declarations
+ */
+static void
+populate_symbol_table(gl_shader *sh)
+{
+ sh->symbols = new(sh) glsl_symbol_table;
+
+ foreach_list(node, sh->ir) {
+ ir_instruction *const inst = (ir_instruction *) node;
+ ir_variable *var;
+ ir_function *func;
+
+ if ((func = inst->as_function()) != NULL) {
+ sh->symbols->add_function(func->name, func);
+ } else if ((var = inst->as_variable()) != NULL) {
+ sh->symbols->add_variable(var->name, var);
+ }
+ }
+}
+
+
+/**
+ * Remap variables referenced in an instruction tree
+ *
+ * This is used when instruction trees are cloned from one shader and placed in
+ * another. These trees will contain references to \c ir_variable nodes that
+ * do not exist in the target shader. This function finds these \c ir_variable
+ * references and replaces the references with matching variables in the target
+ * shader.
+ *
+ * If there is no matching variable in the target shader, a clone of the
+ * \c ir_variable is made and added to the target shader. The new variable is
+ * added to \b both the instruction stream and the symbol table.
+ *
+ * \param inst IR tree that is to be processed.
+ * \param symbols Symbol table containing global scope symbols in the
+ * linked shader.
+ * \param instructions Instruction stream where new variable declarations
+ * should be added.
+ */
+void
+remap_variables(ir_instruction *inst, struct gl_shader *target,
+ hash_table *temps)
+{
+ class remap_visitor : public ir_hierarchical_visitor {
+ public:
+ remap_visitor(struct gl_shader *target,
+ hash_table *temps)
+ {
+ this->target = target;
+ this->symbols = target->symbols;
+ this->instructions = target->ir;
+ this->temps = temps;
+ }
+
+ virtual ir_visitor_status visit(ir_dereference_variable *ir)
+ {
+ if (ir->var->mode == ir_var_temporary) {
+ ir_variable *var = (ir_variable *) hash_table_find(temps, ir->var);
+
+ assert(var != NULL);
+ ir->var = var;
+ return visit_continue;
+ }
+
+ ir_variable *const existing =
+ this->symbols->get_variable(ir->var->name);
+ if (existing != NULL)
+ ir->var = existing;
+ else {
+ ir_variable *copy = ir->var->clone(this->target, NULL);
+
+ this->symbols->add_variable(copy->name, copy);
+ this->instructions->push_head(copy);
+ ir->var = copy;
+ }
+
+ return visit_continue;
+ }
+
+ private:
+ struct gl_shader *target;
+ glsl_symbol_table *symbols;
+ exec_list *instructions;
+ hash_table *temps;
+ };
+
+ remap_visitor v(target, temps);
+
+ inst->accept(&v);
+}
+
+
+/**
+ * Move non-declarations from one instruction stream to another
+ *
+ * The intended usage pattern of this function is to pass the pointer to the
+ * head sentinel of a list (i.e., a pointer to the list cast to an \c exec_node
+ * pointer) for \c last and \c false for \c make_copies on the first
+ * call. Successive calls pass the return value of the previous call for
+ * \c last and \c true for \c make_copies.
+ *
+ * \param instructions Source instruction stream
+ * \param last Instruction after which new instructions should be
+ * inserted in the target instruction stream
+ * \param make_copies Flag selecting whether instructions in \c instructions
+ * should be copied (via \c ir_instruction::clone) into the
+ * target list or moved.
+ *
+ * \return
+ * The new "last" instruction in the target instruction stream. This pointer
+ * is suitable for use as the \c last parameter of a later call to this
+ * function.
+ */
+exec_node *
+move_non_declarations(exec_list *instructions, exec_node *last,
+ bool make_copies, gl_shader *target)
+{
+ hash_table *temps = NULL;
+
+ if (make_copies)
+ temps = hash_table_ctor(0, hash_table_pointer_hash,
+ hash_table_pointer_compare);
+
+ foreach_list_safe(node, instructions) {
+ ir_instruction *inst = (ir_instruction *) node;
+
+ if (inst->as_function())
+ continue;
+
+ ir_variable *var = inst->as_variable();
+ if ((var != NULL) && (var->mode != ir_var_temporary))
+ continue;
+
+ assert(inst->as_assignment()
+ || ((var != NULL) && (var->mode == ir_var_temporary)));
+
+ if (make_copies) {
+ inst = inst->clone(target, NULL);
+
+ if (var != NULL)
+ hash_table_insert(temps, inst, var);
+ else
+ remap_variables(inst, target, temps);
+ } else {
+ inst->remove();
+ }
+
+ last->insert_after(inst);
+ last = inst;
+ }
+
+ if (make_copies)
+ hash_table_dtor(temps);
+
+ return last;
+}
+
+/**
+ * Get the function signature for main from a shader
+ */
+static ir_function_signature *
+get_main_function_signature(gl_shader *sh)
+{
+ ir_function *const f = sh->symbols->get_function("main");
+ if (f != NULL) {
+ exec_list void_parameters;
+
+ /* Look for the 'void main()' signature and ensure that it's defined.
+ * This keeps the linker from accidentally pick a shader that just
+ * contains a prototype for main.
+ *
+ * We don't have to check for multiple definitions of main (in multiple
+ * shaders) because that would have already been caught above.
+ */
+ ir_function_signature *sig = f->matching_signature(&void_parameters);
+ if ((sig != NULL) && sig->is_defined) {
+ return sig;
+ }
+ }
+
+ return NULL;
+}
+
+
+/**
+ * Combine a group of shaders for a single stage to generate a linked shader
+ *
+ * \note
+ * If this function is supplied a single shader, it is cloned, and the new
+ * shader is returned.
+ */
+static struct gl_shader *
+link_intrastage_shaders(GLcontext *ctx,
+ struct gl_shader_program *prog,
+ struct gl_shader **shader_list,
+ unsigned num_shaders)
+{
+ /* Check that global variables defined in multiple shaders are consistent.
+ */
+ if (!cross_validate_globals(prog, shader_list, num_shaders, false))
+ return NULL;
+
+ /* Check that there is only a single definition of each function signature
+ * across all shaders.
+ */
+ for (unsigned i = 0; i < (num_shaders - 1); i++) {
+ foreach_list(node, shader_list[i]->ir) {
+ ir_function *const f = ((ir_instruction *) node)->as_function();
+
+ if (f == NULL)
+ continue;
+
+ for (unsigned j = i + 1; j < num_shaders; j++) {
+ ir_function *const other =
+ shader_list[j]->symbols->get_function(f->name);
+
+ /* If the other shader has no function (and therefore no function
+ * signatures) with the same name, skip to the next shader.
+ */
+ if (other == NULL)
+ continue;
+
+ foreach_iter (exec_list_iterator, iter, *f) {
+ ir_function_signature *sig =
+ (ir_function_signature *) iter.get();
+
+ if (!sig->is_defined || sig->is_builtin)
+ continue;
+
+ ir_function_signature *other_sig =
+ other->exact_matching_signature(& sig->parameters);
+
+ if ((other_sig != NULL) && other_sig->is_defined
+ && !other_sig->is_builtin) {
+ linker_error_printf(prog,
+ "function `%s' is multiply defined",
+ f->name);
+ return NULL;
+ }
+ }
+ }
+ }
+ }
+
+ /* Find the shader that defines main, and make a clone of it.
+ *
+ * Starting with the clone, search for undefined references. If one is
+ * found, find the shader that defines it. Clone the reference and add
+ * it to the shader. Repeat until there are no undefined references or
+ * until a reference cannot be resolved.
+ */
+ gl_shader *main = NULL;
+ for (unsigned i = 0; i < num_shaders; i++) {
+ if (get_main_function_signature(shader_list[i]) != NULL) {
+ main = shader_list[i];
+ break;
+ }
+ }
+
+ if (main == NULL) {
+ linker_error_printf(prog, "%s shader lacks `main'\n",
+ (shader_list[0]->Type == GL_VERTEX_SHADER)
+ ? "vertex" : "fragment");
+ return NULL;
+ }
+
+ gl_shader *const linked = ctx->Driver.NewShader(NULL, 0, main->Type);
+ linked->ir = new(linked) exec_list;
+ clone_ir_list(linked, linked->ir, main->ir);
+
+ populate_symbol_table(linked);
+
+ /* The a pointer to the main function in the final linked shader (i.e., the
+ * copy of the original shader that contained the main function).
+ */
+ ir_function_signature *const main_sig = get_main_function_signature(linked);
+
+ /* Move any instructions other than variable declarations or function
+ * declarations into main.
+ */
+ exec_node *insertion_point =
+ move_non_declarations(linked->ir, (exec_node *) &main_sig->body, false,
+ linked);
+
+ for (unsigned i = 0; i < num_shaders; i++) {
+ if (shader_list[i] == main)
+ continue;
+
+ insertion_point = move_non_declarations(shader_list[i]->ir,
+ insertion_point, true, linked);
+ }
+
+ /* Resolve initializers for global variables in the linked shader.
+ */
+ unsigned num_linking_shaders = num_shaders;
+ for (unsigned i = 0; i < num_shaders; i++)
+ num_linking_shaders += shader_list[i]->num_builtins_to_link;
+
+ gl_shader **linking_shaders =
+ (gl_shader **) calloc(num_linking_shaders, sizeof(gl_shader *));
+
+ memcpy(linking_shaders, shader_list,
+ sizeof(linking_shaders[0]) * num_shaders);
+
+ unsigned idx = num_shaders;
+ for (unsigned i = 0; i < num_shaders; i++) {
+ memcpy(&linking_shaders[idx], shader_list[i]->builtins_to_link,
+ sizeof(linking_shaders[0]) * shader_list[i]->num_builtins_to_link);
+ idx += shader_list[i]->num_builtins_to_link;
+ }
+
+ assert(idx == num_linking_shaders);
+
+ link_function_calls(prog, linked, linking_shaders, num_linking_shaders);
+
+ free(linking_shaders);
+
+ return linked;
+}
+
+
+struct uniform_node {
+ exec_node link;
+ struct gl_uniform *u;
+ unsigned slots;
+};
+
+/**
+ * Update the sizes of linked shader uniform arrays to the maximum
+ * array index used.
+ *
+ * From page 81 (page 95 of the PDF) of the OpenGL 2.1 spec:
+ *
+ * If one or more elements of an array are active,
+ * GetActiveUniform will return the name of the array in name,
+ * subject to the restrictions listed above. The type of the array
+ * is returned in type. The size parameter contains the highest
+ * array element index used, plus one. The compiler or linker
+ * determines the highest index used. There will be only one
+ * active uniform reported by the GL per uniform array.
+
+ */
+static void
+update_array_sizes(struct gl_shader_program *prog)
+{
+ for (unsigned i = 0; i < prog->_NumLinkedShaders; i++) {
+ foreach_list(node, prog->_LinkedShaders[i]->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if ((var == NULL) || (var->mode != ir_var_uniform &&
+ var->mode != ir_var_in &&
+ var->mode != ir_var_out) ||
+ !var->type->is_array())
+ continue;
+
+ unsigned int size = var->max_array_access;
+ for (unsigned j = 0; j < prog->_NumLinkedShaders; j++) {
+ foreach_list(node2, prog->_LinkedShaders[j]->ir) {
+ ir_variable *other_var = ((ir_instruction *) node2)->as_variable();
+ if (!other_var)
+ continue;
+
+ if (strcmp(var->name, other_var->name) == 0 &&
+ other_var->max_array_access > size) {
+ size = other_var->max_array_access;
+ }
+ }
+ }
+
+ if (size + 1 != var->type->fields.array->length) {
+ var->type = glsl_type::get_array_instance(var->type->fields.array,
+ size + 1);
+ /* FINISHME: We should update the types of array
+ * dereferences of this variable now.
+ */
+ }
+ }
+ }
+}
+
+static void
+add_uniform(void *mem_ctx, exec_list *uniforms, struct hash_table *ht,
+ const char *name, const glsl_type *type, GLenum shader_type,
+ unsigned *next_shader_pos, unsigned *total_uniforms)
+{
+ if (type->is_record()) {
+ for (unsigned int i = 0; i < type->length; i++) {
+ const glsl_type *field_type = type->fields.structure[i].type;
+ char *field_name = talloc_asprintf(mem_ctx, "%s.%s", name,
+ type->fields.structure[i].name);
+
+ add_uniform(mem_ctx, uniforms, ht, field_name, field_type,
+ shader_type, next_shader_pos, total_uniforms);
+ }
+ } else {
+ uniform_node *n = (uniform_node *) hash_table_find(ht, name);
+ unsigned int vec4_slots;
+ const glsl_type *array_elem_type = NULL;
+
+ if (type->is_array()) {
+ array_elem_type = type->fields.array;
+ /* Array of structures. */
+ if (array_elem_type->is_record()) {
+ for (unsigned int i = 0; i < type->length; i++) {
+ char *elem_name = talloc_asprintf(mem_ctx, "%s[%d]", name, i);
+ add_uniform(mem_ctx, uniforms, ht, elem_name, array_elem_type,
+ shader_type, next_shader_pos, total_uniforms);
+ }
+ return;
+ }
+ }
+
+ /* Fix the storage size of samplers at 1 vec4 each. Be sure to pad out
+ * vectors to vec4 slots.
+ */
+ if (type->is_array()) {
+ if (array_elem_type->is_sampler())
+ vec4_slots = type->length;
+ else
+ vec4_slots = type->length * array_elem_type->matrix_columns;
+ } else if (type->is_sampler()) {
+ vec4_slots = 1;
+ } else {
+ vec4_slots = type->matrix_columns;
+ }
+
+ if (n == NULL) {
+ n = (uniform_node *) calloc(1, sizeof(struct uniform_node));
+ n->u = (gl_uniform *) calloc(1, sizeof(struct gl_uniform));
+ n->slots = vec4_slots;
+
+ n->u->Name = strdup(name);
+ n->u->Type = type;
+ n->u->VertPos = -1;
+ n->u->FragPos = -1;
+ n->u->GeomPos = -1;
+ (*total_uniforms)++;
+
+ hash_table_insert(ht, n, name);
+ uniforms->push_tail(& n->link);
+ }
+
+ switch (shader_type) {
+ case GL_VERTEX_SHADER:
+ n->u->VertPos = *next_shader_pos;
+ break;
+ case GL_FRAGMENT_SHADER:
+ n->u->FragPos = *next_shader_pos;
+ break;
+ case GL_GEOMETRY_SHADER:
+ n->u->GeomPos = *next_shader_pos;
+ break;
+ }
+
+ (*next_shader_pos) += vec4_slots;
+ }
+}
+
+void
+assign_uniform_locations(struct gl_shader_program *prog)
+{
+ /* */
+ exec_list uniforms;
+ unsigned total_uniforms = 0;
+ hash_table *ht = hash_table_ctor(32, hash_table_string_hash,
+ hash_table_string_compare);
+ void *mem_ctx = talloc_new(NULL);
+
+ for (unsigned i = 0; i < prog->_NumLinkedShaders; i++) {
+ unsigned next_position = 0;
+
+ foreach_list(node, prog->_LinkedShaders[i]->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if ((var == NULL) || (var->mode != ir_var_uniform))
+ continue;
+
+ if (strncmp(var->name, "gl_", 3) == 0) {
+ /* At the moment, we don't allocate uniform locations for
+ * builtin uniforms. It's permitted by spec, and we'll
+ * likely switch to doing that at some point, but not yet.
+ */
+ continue;
+ }
+
+ var->location = next_position;
+ add_uniform(mem_ctx, &uniforms, ht, var->name, var->type,
+ prog->_LinkedShaders[i]->Type,
+ &next_position, &total_uniforms);
+ }
+ }
+
+ talloc_free(mem_ctx);
+
+ gl_uniform_list *ul = (gl_uniform_list *)
+ calloc(1, sizeof(gl_uniform_list));
+
+ ul->Size = total_uniforms;
+ ul->NumUniforms = total_uniforms;
+ ul->Uniforms = (gl_uniform *) calloc(total_uniforms, sizeof(gl_uniform));
+
+ unsigned idx = 0;
+ uniform_node *next;
+ for (uniform_node *node = (uniform_node *) uniforms.head
+ ; node->link.next != NULL
+ ; node = next) {
+ next = (uniform_node *) node->link.next;
+
+ node->link.remove();
+ memcpy(&ul->Uniforms[idx], node->u, sizeof(gl_uniform));
+ idx++;
+
+ free(node->u);
+ free(node);
+ }
+
+ hash_table_dtor(ht);
+
+ prog->Uniforms = ul;
+}
+
+
+/**
+ * Find a contiguous set of available bits in a bitmask
+ *
+ * \param used_mask Bits representing used (1) and unused (0) locations
+ * \param needed_count Number of contiguous bits needed.
+ *
+ * \return
+ * Base location of the available bits on success or -1 on failure.
+ */
+int
+find_available_slots(unsigned used_mask, unsigned needed_count)
+{
+ unsigned needed_mask = (1 << needed_count) - 1;
+ const int max_bit_to_test = (8 * sizeof(used_mask)) - needed_count;
+
+ /* The comparison to 32 is redundant, but without it GCC emits "warning:
+ * cannot optimize possibly infinite loops" for the loop below.
+ */
+ if ((needed_count == 0) || (max_bit_to_test < 0) || (max_bit_to_test > 32))
+ return -1;
+
+ for (int i = 0; i <= max_bit_to_test; i++) {
+ if ((needed_mask & ~used_mask) == needed_mask)
+ return i;
+
+ needed_mask <<= 1;
+ }
+
+ return -1;
+}
+
+
+bool
+assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index)
+{
+ /* Mark invalid attribute locations as being used.
+ */
+ unsigned used_locations = (max_attribute_index >= 32)
+ ? ~0 : ~((1 << max_attribute_index) - 1);
+
+ gl_shader *const sh = prog->_LinkedShaders[0];
+ assert(sh->Type == GL_VERTEX_SHADER);
+
+ /* Operate in a total of four passes.
+ *
+ * 1. Invalidate the location assignments for all vertex shader inputs.
+ *
+ * 2. Assign locations for inputs that have user-defined (via
+ * glBindVertexAttribLocation) locatoins.
+ *
+ * 3. Sort the attributes without assigned locations by number of slots
+ * required in decreasing order. Fragmentation caused by attribute
+ * locations assigned by the application may prevent large attributes
+ * from having enough contiguous space.
+ *
+ * 4. Assign locations to any inputs without assigned locations.
+ */
+
+ invalidate_variable_locations(sh, ir_var_in, VERT_ATTRIB_GENERIC0);
+
+ if (prog->Attributes != NULL) {
+ for (unsigned i = 0; i < prog->Attributes->NumParameters; i++) {
+ ir_variable *const var =
+ sh->symbols->get_variable(prog->Attributes->Parameters[i].Name);
+
+ /* Note: attributes that occupy multiple slots, such as arrays or
+ * matrices, may appear in the attrib array multiple times.
+ */
+ if ((var == NULL) || (var->location != -1))
+ continue;
+
+ /* From page 61 of the OpenGL 4.0 spec:
+ *
+ * "LinkProgram will fail if the attribute bindings assigned by
+ * BindAttribLocation do not leave not enough space to assign a
+ * location for an active matrix attribute or an active attribute
+ * array, both of which require multiple contiguous generic
+ * attributes."
+ *
+ * Previous versions of the spec contain similar language but omit the
+ * bit about attribute arrays.
+ *
+ * Page 61 of the OpenGL 4.0 spec also says:
+ *
+ * "It is possible for an application to bind more than one
+ * attribute name to the same location. This is referred to as
+ * aliasing. This will only work if only one of the aliased
+ * attributes is active in the executable program, or if no path
+ * through the shader consumes more than one attribute of a set
+ * of attributes aliased to the same location. A link error can
+ * occur if the linker determines that every path through the
+ * shader consumes multiple aliased attributes, but
+ * implementations are not required to generate an error in this
+ * case."
+ *
+ * These two paragraphs are either somewhat contradictory, or I don't
+ * fully understand one or both of them.
+ */
+ /* FINISHME: The code as currently written does not support attribute
+ * FINISHME: location aliasing (see comment above).
+ */
+ const int attr = prog->Attributes->Parameters[i].StateIndexes[0];
+ const unsigned slots = count_attribute_slots(var->type);
+
+ /* Mask representing the contiguous slots that will be used by this
+ * attribute.
+ */
+ const unsigned use_mask = (1 << slots) - 1;
+
+ /* Generate a link error if the set of bits requested for this
+ * attribute overlaps any previously allocated bits.
+ */
+ if ((~(use_mask << attr) & used_locations) != used_locations) {
+ linker_error_printf(prog,
+ "insufficient contiguous attribute locations "
+ "available for vertex shader input `%s'",
+ var->name);
+ return false;
+ }
+
+ var->location = VERT_ATTRIB_GENERIC0 + attr;
+ used_locations |= (use_mask << attr);
+ }
+ }
+
+ /* Temporary storage for the set of attributes that need locations assigned.
+ */
+ struct temp_attr {
+ unsigned slots;
+ ir_variable *var;
+
+ /* Used below in the call to qsort. */
+ static int compare(const void *a, const void *b)
+ {
+ const temp_attr *const l = (const temp_attr *) a;
+ const temp_attr *const r = (const temp_attr *) b;
+
+ /* Reversed because we want a descending order sort below. */
+ return r->slots - l->slots;
+ }
+ } to_assign[16];
+
+ unsigned num_attr = 0;
+
+ foreach_list(node, sh->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if ((var == NULL) || (var->mode != ir_var_in))
+ continue;
+
+ /* The location was explicitly assigned, nothing to do here.
+ */
+ if (var->location != -1)
+ continue;
+
+ to_assign[num_attr].slots = count_attribute_slots(var->type);
+ to_assign[num_attr].var = var;
+ num_attr++;
+ }
+
+ /* If all of the attributes were assigned locations by the application (or
+ * are built-in attributes with fixed locations), return early. This should
+ * be the common case.
+ */
+ if (num_attr == 0)
+ return true;
+
+ qsort(to_assign, num_attr, sizeof(to_assign[0]), temp_attr::compare);
+
+ /* VERT_ATTRIB_GENERIC0 is a psdueo-alias for VERT_ATTRIB_POS. It can only
+ * be explicitly assigned by via glBindAttribLocation. Mark it as reserved
+ * to prevent it from being automatically allocated below.
+ */
+ find_deref_visitor find("gl_Vertex");
+ find.run(sh->ir);
+ if (find.variable_found())
+ used_locations |= (1 << 0);
+
+ for (unsigned i = 0; i < num_attr; i++) {
+ /* Mask representing the contiguous slots that will be used by this
+ * attribute.
+ */
+ const unsigned use_mask = (1 << to_assign[i].slots) - 1;
+
+ int location = find_available_slots(used_locations, to_assign[i].slots);
+
+ if (location < 0) {
+ linker_error_printf(prog,
+ "insufficient contiguous attribute locations "
+ "available for vertex shader input `%s'",
+ to_assign[i].var->name);
+ return false;
+ }
+
+ to_assign[i].var->location = VERT_ATTRIB_GENERIC0 + location;
+ used_locations |= (use_mask << location);
+ }
+
+ return true;
+}
+
+
+/**
+ * Demote shader outputs that are not read to being just plain global variables
+ */
+void
+demote_unread_shader_outputs(gl_shader *sh)
+{
+ foreach_list(node, sh->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if ((var == NULL) || (var->mode != ir_var_out))
+ continue;
+
+ /* An 'out' variable is only really a shader output if its value is read
+ * by the following stage.
+ */
+ if (var->location == -1) {
+ var->mode = ir_var_auto;
+ }
+ }
+}
+
+
+void
+assign_varying_locations(struct gl_shader_program *prog,
+ gl_shader *producer, gl_shader *consumer)
+{
+ /* FINISHME: Set dynamically when geometry shader support is added. */
+ unsigned output_index = VERT_RESULT_VAR0;
+ unsigned input_index = FRAG_ATTRIB_VAR0;
+
+ /* Operate in a total of three passes.
+ *
+ * 1. Assign locations for any matching inputs and outputs.
+ *
+ * 2. Mark output variables in the producer that do not have locations as
+ * not being outputs. This lets the optimizer eliminate them.
+ *
+ * 3. Mark input variables in the consumer that do not have locations as
+ * not being inputs. This lets the optimizer eliminate them.
+ */
+
+ invalidate_variable_locations(producer, ir_var_out, VERT_RESULT_VAR0);
+ invalidate_variable_locations(consumer, ir_var_in, FRAG_ATTRIB_VAR0);
+
+ foreach_list(node, producer->ir) {
+ ir_variable *const output_var = ((ir_instruction *) node)->as_variable();
+
+ if ((output_var == NULL) || (output_var->mode != ir_var_out)
+ || (output_var->location != -1))
+ continue;
+
+ ir_variable *const input_var =
+ consumer->symbols->get_variable(output_var->name);
+
+ if ((input_var == NULL) || (input_var->mode != ir_var_in))
+ continue;
+
+ assert(input_var->location == -1);
+
+ output_var->location = output_index;
+ input_var->location = input_index;
+
+ /* FINISHME: Support for "varying" records in GLSL 1.50. */
+ assert(!output_var->type->is_record());
+
+ if (output_var->type->is_array()) {
+ const unsigned slots = output_var->type->length
+ * output_var->type->fields.array->matrix_columns;
+
+ output_index += slots;
+ input_index += slots;
+ } else {
+ const unsigned slots = output_var->type->matrix_columns;
+
+ output_index += slots;
+ input_index += slots;
+ }
+ }
+
+ demote_unread_shader_outputs(producer);
+
+ foreach_list(node, consumer->ir) {
+ ir_variable *const var = ((ir_instruction *) node)->as_variable();
+
+ if ((var == NULL) || (var->mode != ir_var_in))
+ continue;
+
+ if (var->location == -1) {
+ if (prog->Version <= 120) {
+ /* On page 25 (page 31 of the PDF) of the GLSL 1.20 spec:
+ *
+ * Only those varying variables used (i.e. read) in
+ * the fragment shader executable must be written to
+ * by the vertex shader executable; declaring
+ * superfluous varying variables in a vertex shader is
+ * permissible.
+ *
+ * We interpret this text as meaning that the VS must
+ * write the variable for the FS to read it. See
+ * "glsl1-varying read but not written" in piglit.
+ */
+
+ linker_error_printf(prog, "fragment shader varying %s not written "
+ "by vertex shader\n.", var->name);
+ prog->LinkStatus = false;
+ }
+
+ /* An 'in' variable is only really a shader input if its
+ * value is written by the previous stage.
+ */
+ var->mode = ir_var_auto;
+ }
+ }
+}
+
+
+void
+link_shaders(GLcontext *ctx, struct gl_shader_program *prog)
+{
+ prog->LinkStatus = false;
+ prog->Validated = false;
+ prog->_Used = false;
+
+ if (prog->InfoLog != NULL)
+ talloc_free(prog->InfoLog);
+
+ prog->InfoLog = talloc_strdup(NULL, "");
+
+ /* Separate the shaders into groups based on their type.
+ */
+ struct gl_shader **vert_shader_list;
+ unsigned num_vert_shaders = 0;
+ struct gl_shader **frag_shader_list;
+ unsigned num_frag_shaders = 0;
+
+ vert_shader_list = (struct gl_shader **)
+ calloc(2 * prog->NumShaders, sizeof(struct gl_shader *));
+ frag_shader_list = &vert_shader_list[prog->NumShaders];
+
+ unsigned min_version = UINT_MAX;
+ unsigned max_version = 0;
+ for (unsigned i = 0; i < prog->NumShaders; i++) {
+ min_version = MIN2(min_version, prog->Shaders[i]->Version);
+ max_version = MAX2(max_version, prog->Shaders[i]->Version);
+
+ switch (prog->Shaders[i]->Type) {
+ case GL_VERTEX_SHADER:
+ vert_shader_list[num_vert_shaders] = prog->Shaders[i];
+ num_vert_shaders++;
+ break;
+ case GL_FRAGMENT_SHADER:
+ frag_shader_list[num_frag_shaders] = prog->Shaders[i];
+ num_frag_shaders++;
+ break;
+ case GL_GEOMETRY_SHADER:
+ /* FINISHME: Support geometry shaders. */
+ assert(prog->Shaders[i]->Type != GL_GEOMETRY_SHADER);
+ break;
+ }
+ }
+
+ /* Previous to GLSL version 1.30, different compilation units could mix and
+ * match shading language versions. With GLSL 1.30 and later, the versions
+ * of all shaders must match.
+ */
+ assert(min_version >= 100);
+ assert(max_version <= 130);
+ if ((max_version >= 130 || min_version == 100)
+ && min_version != max_version) {
+ linker_error_printf(prog, "all shaders must use same shading "
+ "language version\n");
+ goto done;
+ }
+
+ prog->Version = max_version;
+
+ for (unsigned int i = 0; i < prog->_NumLinkedShaders; i++) {
+ ctx->Driver.DeleteShader(ctx, prog->_LinkedShaders[i]);
+ }
+
+ /* Link all shaders for a particular stage and validate the result.
+ */
+ prog->_NumLinkedShaders = 0;
+ if (num_vert_shaders > 0) {
+ gl_shader *const sh =
+ link_intrastage_shaders(ctx, prog, vert_shader_list, num_vert_shaders);
+
+ if (sh == NULL)
+ goto done;
+
+ if (!validate_vertex_shader_executable(prog, sh))
+ goto done;
+
+ prog->_LinkedShaders[prog->_NumLinkedShaders] = sh;
+ prog->_NumLinkedShaders++;
+ }
+
+ if (num_frag_shaders > 0) {
+ gl_shader *const sh =
+ link_intrastage_shaders(ctx, prog, frag_shader_list, num_frag_shaders);
+
+ if (sh == NULL)
+ goto done;
+
+ if (!validate_fragment_shader_executable(prog, sh))
+ goto done;
+
+ prog->_LinkedShaders[prog->_NumLinkedShaders] = sh;
+ prog->_NumLinkedShaders++;
+ }
+
+ /* Here begins the inter-stage linking phase. Some initial validation is
+ * performed, then locations are assigned for uniforms, attributes, and
+ * varyings.
+ */
+ if (cross_validate_uniforms(prog)) {
+ /* Validate the inputs of each stage with the output of the preceeding
+ * stage.
+ */
+ for (unsigned i = 1; i < prog->_NumLinkedShaders; i++) {
+ if (!cross_validate_outputs_to_inputs(prog,
+ prog->_LinkedShaders[i - 1],
+ prog->_LinkedShaders[i]))
+ goto done;
+ }
+
+ prog->LinkStatus = true;
+ }
+
+ /* Do common optimization before assigning storage for attributes,
+ * uniforms, and varyings. Later optimization could possibly make
+ * some of that unused.
+ */
+ for (unsigned i = 0; i < prog->_NumLinkedShaders; i++) {
+ while (do_common_optimization(prog->_LinkedShaders[i]->ir, true, 32))
+ ;
+ }
+
+ update_array_sizes(prog);
+
+ assign_uniform_locations(prog);
+
+ if (prog->_NumLinkedShaders && prog->_LinkedShaders[0]->Type == GL_VERTEX_SHADER) {
+ /* FINISHME: The value of the max_attribute_index parameter is
+ * FINISHME: implementation dependent based on the value of
+ * FINISHME: GL_MAX_VERTEX_ATTRIBS. GL_MAX_VERTEX_ATTRIBS must be
+ * FINISHME: at least 16, so hardcode 16 for now.
+ */
+ if (!assign_attribute_locations(prog, 16))
+ goto done;
+
+ if (prog->_NumLinkedShaders == 1)
+ demote_unread_shader_outputs(prog->_LinkedShaders[0]);
+ }
+
+ for (unsigned i = 1; i < prog->_NumLinkedShaders; i++)
+ assign_varying_locations(prog,
+ prog->_LinkedShaders[i - 1],
+ prog->_LinkedShaders[i]);
+
+ /* FINISHME: Assign fragment shader output locations. */
+
+done:
+ free(vert_shader_list);
+}
diff --git a/mesalib/src/glsl/linker.h b/mesalib/src/glsl/linker.h
new file mode 100644
index 000000000..a8ce16a7e
--- /dev/null
+++ b/mesalib/src/glsl/linker.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef GLSL_LINKER_H
+#define GLSL_LINKER_H
+
+extern void
+linker_error_printf(gl_shader_program *prog, const char *fmt, ...);
+
+extern bool
+link_function_calls(gl_shader_program *prog, gl_shader *main,
+ gl_shader **shader_list, unsigned num_shaders);
+
+#endif /* GLSL_LINKER_H */
diff --git a/mesalib/src/glsl/list.h b/mesalib/src/glsl/list.h
new file mode 100644
index 000000000..9c39855ad
--- /dev/null
+++ b/mesalib/src/glsl/list.h
@@ -0,0 +1,513 @@
+/*
+ * Copyright © 2008, 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file list.h
+ * \brief Doubly-linked list abstract container type.
+ *
+ * Each doubly-linked list has a sentinel head and tail node. These nodes
+ * contain no data. The head sentinel can be identified by its \c prev
+ * pointer being \c NULL. The tail sentinel can be identified by its
+ * \c next pointer being \c NULL.
+ *
+ * A list is empty if either the head sentinel's \c next pointer points to the
+ * tail sentinel or the tail sentinel's \c prev poiner points to the head
+ * sentinel.
+ *
+ * Instead of tracking two separate \c node structures and a \c list structure
+ * that points to them, the sentinel nodes are in a single structure. Noting
+ * that each sentinel node always has one \c NULL pointer, the \c NULL
+ * pointers occupy the same memory location. In the \c list structure
+ * contains a the following:
+ *
+ * - A \c head pointer that represents the \c next pointer of the
+ * head sentinel node.
+ * - A \c tail pointer that represents the \c prev pointer of the head
+ * sentinel node and the \c next pointer of the tail sentinel node. This
+ * pointer is \b always \c NULL.
+ * - A \c tail_prev pointer that represents the \c prev pointer of the
+ * tail sentinel node.
+ *
+ * Therefore, if \c head->next is \c NULL or \c tail_prev->prev is \c NULL,
+ * the list is empty.
+ *
+ * To anyone familiar with "exec lists" on the Amiga, this structure should
+ * be immediately recognizable. See the following link for the original Amiga
+ * operating system documentation on the subject.
+ *
+ * http://www.natami.net/dev/Libraries_Manual_guide/node02D7.html
+ *
+ * \author Ian Romanick <ian.d.romanick@intel.com>
+ */
+
+#pragma once
+#ifndef LIST_CONTAINER_H
+#define LIST_CONTAINER_H
+
+#ifndef __cplusplus
+#include <stddef.h>
+#include <talloc.h>
+#else
+extern "C" {
+#include <talloc.h>
+}
+#endif
+
+#include <assert.h>
+
+struct exec_node {
+ struct exec_node *next;
+ struct exec_node *prev;
+
+#ifdef __cplusplus
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'ctx' (or any of its ancestors). */
+ static void* operator new(size_t size, void *ctx)
+ {
+ void *node;
+
+ node = talloc_size(ctx, size);
+ assert(node != NULL);
+
+ return node;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. */
+ static void operator delete(void *node, void *ctx)
+ {
+ talloc_free(node);
+ }
+ static void operator delete(void *node)
+ {
+ talloc_free(node);
+ }
+
+ exec_node() : next(NULL), prev(NULL)
+ {
+ /* empty */
+ }
+
+ const exec_node *get_next() const
+ {
+ return next;
+ }
+
+ exec_node *get_next()
+ {
+ return next;
+ }
+
+ const exec_node *get_prev() const
+ {
+ return prev;
+ }
+
+ exec_node *get_prev()
+ {
+ return prev;
+ }
+
+ void remove()
+ {
+ next->prev = prev;
+ prev->next = next;
+ next = NULL;
+ prev = NULL;
+ }
+
+ /**
+ * Link a node with itself
+ *
+ * This creates a sort of degenerate list that is occasionally useful.
+ */
+ void self_link()
+ {
+ next = this;
+ prev = this;
+ }
+
+ /**
+ * Insert a node in the list after the current node
+ */
+ void insert_after(exec_node *after)
+ {
+ after->next = this->next;
+ after->prev = this;
+
+ this->next->prev = after;
+ this->next = after;
+ }
+ /**
+ * Insert a node in the list before the current node
+ */
+ void insert_before(exec_node *before)
+ {
+ before->next = this;
+ before->prev = this->prev;
+
+ this->prev->next = before;
+ this->prev = before;
+ }
+
+ /**
+ * Insert another list in the list before the current node
+ */
+ void insert_before(struct exec_list *before);
+
+ /**
+ * Replace the current node with the given node.
+ */
+ void replace_with(exec_node *replacement)
+ {
+ replacement->prev = this->prev;
+ replacement->next = this->next;
+
+ this->prev->next = replacement;
+ this->next->prev = replacement;
+ }
+
+ /**
+ * Is this the sentinel at the tail of the list?
+ */
+ bool is_tail_sentinel() const
+ {
+ return this->next == NULL;
+ }
+
+ /**
+ * Is this the sentinel at the head of the list?
+ */
+ bool is_head_sentinel() const
+ {
+ return this->prev == NULL;
+ }
+#endif
+};
+
+
+#ifdef __cplusplus
+/* This macro will not work correctly if `t' uses virtual inheritance. If you
+ * are using virtual inheritance, you deserve a slow and painful death. Enjoy!
+ */
+#define exec_list_offsetof(t, f, p) \
+ (((char *) &((t *) p)->f) - ((char *) p))
+#else
+#define exec_list_offsetof(t, f, p) offsetof(t, f)
+#endif
+
+/**
+ * Get a pointer to the structure containing an exec_node
+ *
+ * Given a pointer to an \c exec_node embedded in a structure, get a pointer to
+ * the containing structure.
+ *
+ * \param type Base type of the structure containing the node
+ * \param node Pointer to the \c exec_node
+ * \param field Name of the field in \c type that is the embedded \c exec_node
+ */
+#define exec_node_data(type, node, field) \
+ ((type *) (((char *) node) - exec_list_offsetof(type, field, node)))
+
+#ifdef __cplusplus
+struct exec_node;
+
+class iterator {
+public:
+ void next()
+ {
+ }
+
+ void *get()
+ {
+ return NULL;
+ }
+
+ bool has_next() const
+ {
+ return false;
+ }
+};
+
+class exec_list_iterator : public iterator {
+public:
+ exec_list_iterator(exec_node *n) : node(n), _next(n->next)
+ {
+ /* empty */
+ }
+
+ void next()
+ {
+ node = _next;
+ _next = node->next;
+ }
+
+ void remove()
+ {
+ node->remove();
+ }
+
+ exec_node *get()
+ {
+ return node;
+ }
+
+ bool has_next() const
+ {
+ return _next != NULL;
+ }
+
+private:
+ exec_node *node;
+ exec_node *_next;
+};
+
+#define foreach_iter(iter_type, iter, container) \
+ for (iter_type iter = (container) . iterator(); iter.has_next(); iter.next())
+#endif
+
+
+struct exec_list {
+ struct exec_node *head;
+ struct exec_node *tail;
+ struct exec_node *tail_pred;
+
+#ifdef __cplusplus
+ /* Callers of this talloc-based new need not call delete. It's
+ * easier to just talloc_free 'ctx' (or any of its ancestors). */
+ static void* operator new(size_t size, void *ctx)
+ {
+ void *node;
+
+ node = talloc_size(ctx, size);
+ assert(node != NULL);
+
+ return node;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just
+ * talloc_free in that case. */
+ static void operator delete(void *node, void *ctx)
+ {
+ talloc_free(node);
+ }
+ static void operator delete(void *node)
+ {
+ talloc_free(node);
+ }
+
+ exec_list()
+ {
+ make_empty();
+ }
+
+ void make_empty()
+ {
+ head = (exec_node *) & tail;
+ tail = NULL;
+ tail_pred = (exec_node *) & head;
+ }
+
+ bool is_empty() const
+ {
+ /* There are three ways to test whether a list is empty or not.
+ *
+ * - Check to see if the \c head points to the \c tail.
+ * - Check to see if the \c tail_pred points to the \c head.
+ * - Check to see if the \c head is the sentinel node by test whether its
+ * \c next pointer is \c NULL.
+ *
+ * The first two methods tend to generate better code on modern systems
+ * because they save a pointer dereference.
+ */
+ return head == (exec_node *) &tail;
+ }
+
+ const exec_node *get_head() const
+ {
+ return !is_empty() ? head : NULL;
+ }
+
+ exec_node *get_head()
+ {
+ return !is_empty() ? head : NULL;
+ }
+
+ const exec_node *get_tail() const
+ {
+ return !is_empty() ? tail_pred : NULL;
+ }
+
+ exec_node *get_tail()
+ {
+ return !is_empty() ? tail_pred : NULL;
+ }
+
+ void push_head(exec_node *n)
+ {
+ n->next = head;
+ n->prev = (exec_node *) &head;
+
+ n->next->prev = n;
+ head = n;
+ }
+
+ void push_tail(exec_node *n)
+ {
+ n->next = (exec_node *) &tail;
+ n->prev = tail_pred;
+
+ n->prev->next = n;
+ tail_pred = n;
+ }
+
+ void push_degenerate_list_at_head(exec_node *n)
+ {
+ assert(n->prev->next == n);
+
+ n->prev->next = head;
+ head->prev = n->prev;
+ n->prev = (exec_node *) &head;
+ head = n;
+ }
+
+ /**
+ * Remove the first node from a list and return it
+ *
+ * \return
+ * The first node in the list or \c NULL if the list is empty.
+ *
+ * \sa exec_list::get_head
+ */
+ exec_node *pop_head()
+ {
+ exec_node *const n = this->get_head();
+ if (n != NULL)
+ n->remove();
+
+ return n;
+ }
+
+ /**
+ * Move all of the nodes from this list to the target list
+ */
+ void move_nodes_to(exec_list *target)
+ {
+ if (is_empty()) {
+ target->make_empty();
+ } else {
+ target->head = head;
+ target->tail = NULL;
+ target->tail_pred = tail_pred;
+
+ target->head->prev = (exec_node *) &target->head;
+ target->tail_pred->next = (exec_node *) &target->tail;
+
+ make_empty();
+ }
+ }
+
+ /**
+ * Append all nodes from the source list to the target list
+ */
+ void
+ append_list(exec_list *source)
+ {
+ if (source->is_empty())
+ return;
+
+ /* Link the first node of the source with the last node of the target list.
+ */
+ this->tail_pred->next = source->head;
+ source->head->prev = this->tail_pred;
+
+ /* Make the tail of the source list be the tail of the target list.
+ */
+ this->tail_pred = source->tail_pred;
+ this->tail_pred->next = (exec_node *) &this->tail;
+
+ /* Make the source list empty for good measure.
+ */
+ source->make_empty();
+ }
+
+ exec_list_iterator iterator()
+ {
+ return exec_list_iterator(head);
+ }
+
+ exec_list_iterator iterator() const
+ {
+ return exec_list_iterator((exec_node *) head);
+ }
+#endif
+};
+
+
+#ifdef __cplusplus
+inline void exec_node::insert_before(exec_list *before)
+{
+ if (before->is_empty())
+ return;
+
+ before->tail_pred->next = this;
+ before->head->prev = this->prev;
+
+ this->prev->next = before->head;
+ this->prev = before->tail_pred;
+
+ before->make_empty();
+}
+#endif
+
+/**
+ * This version is safe even if the current node is removed.
+ */
+#define foreach_list_safe(__node, __list) \
+ for (exec_node * __node = (__list)->head, * __next = __node->next \
+ ; __next != NULL \
+ ; __node = __next, __next = __next->next)
+
+#define foreach_list(__node, __list) \
+ for (exec_node * __node = (__list)->head \
+ ; (__node)->next != NULL \
+ ; (__node) = (__node)->next)
+
+#define foreach_list_const(__node, __list) \
+ for (const exec_node * __node = (__list)->head \
+ ; (__node)->next != NULL \
+ ; (__node) = (__node)->next)
+
+#define foreach_list_typed(__type, __node, __field, __list) \
+ for (__type * __node = \
+ exec_node_data(__type, (__list)->head, __field); \
+ (__node)->__field.next != NULL; \
+ (__node) = exec_node_data(__type, (__node)->__field.next, __field))
+
+#define foreach_list_typed_const(__type, __node, __field, __list) \
+ for (const __type * __node = \
+ exec_node_data(__type, (__list)->head, __field); \
+ (__node)->__field.next != NULL; \
+ (__node) = exec_node_data(__type, (__node)->__field.next, __field))
+
+#endif /* LIST_CONTAINER_H */
diff --git a/mesalib/src/glsl/loop_analysis.cpp b/mesalib/src/glsl/loop_analysis.cpp
new file mode 100644
index 000000000..91e34da0e
--- /dev/null
+++ b/mesalib/src/glsl/loop_analysis.cpp
@@ -0,0 +1,496 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glsl_types.h"
+#include "loop_analysis.h"
+#include "ir_hierarchical_visitor.h"
+
+static bool is_loop_terminator(ir_if *ir);
+
+static bool all_expression_operands_are_loop_constant(ir_rvalue *,
+ hash_table *);
+
+static ir_rvalue *get_basic_induction_increment(ir_assignment *, hash_table *);
+
+
+loop_state::loop_state()
+{
+ this->ht = hash_table_ctor(0, hash_table_pointer_hash,
+ hash_table_pointer_compare);
+ this->mem_ctx = talloc_init("loop state");
+}
+
+
+loop_state::~loop_state()
+{
+ hash_table_dtor(this->ht);
+}
+
+
+loop_variable_state *
+loop_state::insert(ir_loop *ir)
+{
+ loop_variable_state *ls = new(this->mem_ctx) loop_variable_state;
+ hash_table_insert(this->ht, ls, ir);
+
+ return ls;
+}
+
+
+loop_variable_state *
+loop_state::get(const ir_loop *ir)
+{
+ return (loop_variable_state *) hash_table_find(this->ht, ir);
+}
+
+
+loop_variable *
+loop_variable_state::get(const ir_variable *ir)
+{
+ return (loop_variable *) hash_table_find(this->var_hash, ir);
+}
+
+
+loop_variable *
+loop_variable_state::insert(ir_variable *var)
+{
+ void *mem_ctx = talloc_parent(this);
+ loop_variable *lv = talloc_zero(mem_ctx, loop_variable);
+
+ lv->var = var;
+
+ hash_table_insert(this->var_hash, lv, lv->var);
+ this->variables.push_tail(lv);
+
+ return lv;
+}
+
+
+loop_terminator *
+loop_variable_state::insert(ir_if *if_stmt)
+{
+ void *mem_ctx = talloc_parent(this);
+ loop_terminator *t = talloc_zero(mem_ctx, loop_terminator);
+
+ t->ir = if_stmt;
+ this->terminators.push_tail(t);
+
+ return t;
+}
+
+
+class loop_analysis : public ir_hierarchical_visitor {
+public:
+ loop_analysis();
+
+ virtual ir_visitor_status visit(ir_loop_jump *);
+ virtual ir_visitor_status visit(ir_dereference_variable *);
+
+ virtual ir_visitor_status visit_enter(ir_loop *);
+ virtual ir_visitor_status visit_leave(ir_loop *);
+ virtual ir_visitor_status visit_enter(ir_assignment *);
+ virtual ir_visitor_status visit_leave(ir_assignment *);
+ virtual ir_visitor_status visit_enter(ir_if *);
+ virtual ir_visitor_status visit_leave(ir_if *);
+
+ loop_state *loops;
+
+ int if_statement_depth;
+
+ ir_assignment *current_assignment;
+
+ exec_list state;
+};
+
+
+loop_analysis::loop_analysis()
+{
+ this->loops = new loop_state;
+
+ this->if_statement_depth = 0;
+ this->current_assignment = NULL;
+}
+
+
+ir_visitor_status
+loop_analysis::visit(ir_loop_jump *ir)
+{
+ (void) ir;
+
+ assert(!this->state.is_empty());
+
+ loop_variable_state *const ls =
+ (loop_variable_state *) this->state.get_head();
+
+ ls->num_loop_jumps++;
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+loop_analysis::visit(ir_dereference_variable *ir)
+{
+ /* If we're not somewhere inside a loop, there's nothing to do.
+ */
+ if (this->state.is_empty())
+ return visit_continue;
+
+ loop_variable_state *const ls =
+ (loop_variable_state *) this->state.get_head();
+
+ ir_variable *var = ir->variable_referenced();
+ loop_variable *lv = ls->get(var);
+
+ if (lv == NULL) {
+ lv = ls->insert(var);
+ lv->read_before_write = !this->in_assignee;
+ }
+
+ if (this->in_assignee) {
+ assert(this->current_assignment != NULL);
+
+ lv->conditional_assignment = (this->if_statement_depth > 0)
+ || (this->current_assignment->condition != NULL);
+
+ if (lv->first_assignment == NULL) {
+ assert(lv->num_assignments == 0);
+
+ lv->first_assignment = this->current_assignment;
+ }
+
+ lv->num_assignments++;
+ } else if (lv->first_assignment == this->current_assignment) {
+ /* This catches the case where the variable is used in the RHS of an
+ * assignment where it is also in the LHS.
+ */
+ lv->read_before_write = true;
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+loop_analysis::visit_enter(ir_loop *ir)
+{
+ loop_variable_state *ls = this->loops->insert(ir);
+ this->state.push_head(ls);
+
+ return visit_continue;
+}
+
+ir_visitor_status
+loop_analysis::visit_leave(ir_loop *ir)
+{
+ loop_variable_state *const ls =
+ (loop_variable_state *) this->state.pop_head();
+
+
+ foreach_list(node, &ir->body_instructions) {
+ /* Skip over declarations at the start of a loop.
+ */
+ if (((ir_instruction *) node)->as_variable())
+ continue;
+
+ ir_if *if_stmt = ((ir_instruction *) node)->as_if();
+
+ if ((if_stmt != NULL) && is_loop_terminator(if_stmt))
+ ls->insert(if_stmt);
+ else
+ break;
+ }
+
+
+ foreach_list_safe(node, &ls->variables) {
+ loop_variable *lv = (loop_variable *) node;
+
+ /* Move variables that are already marked as being loop constant to
+ * a separate list. These trivially don't need to be tested.
+ */
+ if (lv->is_loop_constant()) {
+ lv->remove();
+ ls->constants.push_tail(lv);
+ }
+ }
+
+ /* Each variable assigned in the loop that isn't already marked as being loop
+ * constant might still be loop constant. The requirements at this point
+ * are:
+ *
+ * - Variable is written before it is read.
+ *
+ * - Only one assignment to the variable.
+ *
+ * - All operands on the RHS of the assignment are also loop constants.
+ *
+ * The last requirement is the reason for the progress loop. A variable
+ * marked as a loop constant on one pass may allow other variables to be
+ * marked as loop constant on following passes.
+ */
+ bool progress;
+ do {
+ progress = false;
+
+ foreach_list_safe(node, &ls->variables) {
+ loop_variable *lv = (loop_variable *) node;
+
+ if (lv->conditional_assignment || (lv->num_assignments > 1))
+ continue;
+
+ /* Process the RHS of the assignment. If all of the variables
+ * accessed there are loop constants, then add this
+ */
+ ir_rvalue *const rhs = lv->first_assignment->rhs;
+ if (all_expression_operands_are_loop_constant(rhs, ls->var_hash)) {
+ lv->rhs_clean = true;
+
+ if (lv->is_loop_constant()) {
+ progress = true;
+
+ lv->remove();
+ ls->constants.push_tail(lv);
+ }
+ }
+ }
+ } while (progress);
+
+ /* The remaining variables that are not loop invariant might be loop
+ * induction variables.
+ */
+ foreach_list_safe(node, &ls->variables) {
+ loop_variable *lv = (loop_variable *) node;
+
+ /* If there is more than one assignment to a variable, it cannot be a
+ * loop induction variable. This isn't strictly true, but this is a
+ * very simple induction variable detector, and it can't handle more
+ * complex cases.
+ */
+ if (lv->num_assignments > 1)
+ continue;
+
+ /* All of the variables with zero assignments in the loop are loop
+ * invariant, and they should have already been filtered out.
+ */
+ assert(lv->num_assignments == 1);
+ assert(lv->first_assignment != NULL);
+
+ /* The assignmnet to the variable in the loop must be unconditional.
+ */
+ if (lv->conditional_assignment)
+ continue;
+
+ /* Basic loop induction variables have a single assignment in the loop
+ * that has the form 'VAR = VAR + i' or 'VAR = VAR - i' where i is a
+ * loop invariant.
+ */
+ ir_rvalue *const inc =
+ get_basic_induction_increment(lv->first_assignment, ls->var_hash);
+ if (inc != NULL) {
+ lv->iv_scale = NULL;
+ lv->biv = lv->var;
+ lv->increment = inc;
+
+ lv->remove();
+ ls->induction_variables.push_tail(lv);
+ }
+ }
+
+ return visit_continue;
+}
+
+ir_visitor_status
+loop_analysis::visit_enter(ir_if *ir)
+{
+ (void) ir;
+
+ if (!this->state.is_empty())
+ this->if_statement_depth++;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+loop_analysis::visit_leave(ir_if *ir)
+{
+ (void) ir;
+
+ if (!this->state.is_empty())
+ this->if_statement_depth--;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+loop_analysis::visit_enter(ir_assignment *ir)
+{
+ /* If we're not somewhere inside a loop, there's nothing to do.
+ */
+ if (this->state.is_empty())
+ return visit_continue_with_parent;
+
+ this->current_assignment = ir;
+
+ return visit_continue;
+}
+
+ir_visitor_status
+loop_analysis::visit_leave(ir_assignment *ir)
+{
+ /* Since the visit_enter exits with visit_continue_with_parent for this
+ * case, the loop state stack should never be empty here.
+ */
+ assert(!this->state.is_empty());
+
+ assert(this->current_assignment == ir);
+ this->current_assignment = NULL;
+
+ return visit_continue;
+}
+
+
+class examine_rhs : public ir_hierarchical_visitor {
+public:
+ examine_rhs(hash_table *loop_variables)
+ {
+ this->only_uses_loop_constants = true;
+ this->loop_variables = loop_variables;
+ }
+
+ virtual ir_visitor_status visit(ir_dereference_variable *ir)
+ {
+ loop_variable *lv =
+ (loop_variable *) hash_table_find(this->loop_variables, ir->var);
+
+ assert(lv != NULL);
+
+ if (lv->is_loop_constant()) {
+ return visit_continue;
+ } else {
+ this->only_uses_loop_constants = false;
+ return visit_stop;
+ }
+ }
+
+ hash_table *loop_variables;
+ bool only_uses_loop_constants;
+};
+
+
+bool
+all_expression_operands_are_loop_constant(ir_rvalue *ir, hash_table *variables)
+{
+ examine_rhs v(variables);
+
+ ir->accept(&v);
+
+ return v.only_uses_loop_constants;
+}
+
+
+ir_rvalue *
+get_basic_induction_increment(ir_assignment *ir, hash_table *var_hash)
+{
+ /* The RHS must be a binary expression.
+ */
+ ir_expression *const rhs = ir->rhs->as_expression();
+ if ((rhs == NULL)
+ || ((rhs->operation != ir_binop_add)
+ && (rhs->operation != ir_binop_sub)))
+ return NULL;
+
+ /* One of the of operands of the expression must be the variable assigned.
+ * If the operation is subtraction, the variable in question must be the
+ * "left" operand.
+ */
+ ir_variable *const var = ir->lhs->variable_referenced();
+
+ ir_variable *const op0 = rhs->operands[0]->variable_referenced();
+ ir_variable *const op1 = rhs->operands[1]->variable_referenced();
+
+ if (((op0 != var) && (op1 != var))
+ || ((op1 == var) && (rhs->operation == ir_binop_sub)))
+ return NULL;
+
+ ir_rvalue *inc = (op0 == var) ? rhs->operands[1] : rhs->operands[0];
+
+ if (inc->as_constant() == NULL) {
+ ir_variable *const inc_var = inc->variable_referenced();
+ if (inc_var != NULL) {
+ loop_variable *lv =
+ (loop_variable *) hash_table_find(var_hash, inc_var);
+
+ if (!lv->is_loop_constant())
+ inc = NULL;
+ } else
+ inc = NULL;
+ }
+
+ if ((inc != NULL) && (rhs->operation == ir_binop_sub)) {
+ void *mem_ctx = talloc_parent(ir);
+
+ inc = new(mem_ctx) ir_expression(ir_unop_neg,
+ inc->type,
+ inc->clone(mem_ctx, NULL),
+ NULL);
+ }
+
+ return inc;
+}
+
+
+/**
+ * Detect whether an if-statement is a loop terminating condition
+ *
+ * Detects if-statements of the form
+ *
+ * (if (expression bool ...) (break))
+ */
+bool
+is_loop_terminator(ir_if *ir)
+{
+ if (!ir->else_instructions.is_empty())
+ return false;
+
+ ir_instruction *const inst =
+ (ir_instruction *) ir->then_instructions.get_head();
+ assert(inst != NULL);
+
+ if (inst->ir_type != ir_type_loop_jump)
+ return false;
+
+ ir_loop_jump *const jump = (ir_loop_jump *) inst;
+ if (jump->mode != ir_loop_jump::jump_break)
+ return false;
+
+ return true;
+}
+
+
+loop_state *
+analyze_loop_variables(exec_list *instructions)
+{
+ loop_analysis v;
+
+ v.run(instructions);
+ return v.loops;
+}
diff --git a/mesalib/src/glsl/loop_analysis.h b/mesalib/src/glsl/loop_analysis.h
new file mode 100644
index 000000000..7b0511fbb
--- /dev/null
+++ b/mesalib/src/glsl/loop_analysis.h
@@ -0,0 +1,230 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef LOOP_ANALYSIS_H
+#define LOOP_ANALYSIS_H
+
+#include "ir.h"
+#include "program/hash_table.h"
+
+/**
+ * Analyze and classify all variables used in all loops in the instruction list
+ */
+extern class loop_state *
+analyze_loop_variables(exec_list *instructions);
+
+
+/**
+ * Fill in loop control fields
+ *
+ * Based on analysis of loop variables, this function tries to remove sequences
+ * in the loop of the form
+ *
+ * (if (expression bool ...) (break))
+ *
+ * and fill in the \c ir_loop::from, \c ir_loop::to, and \c ir_loop::counter
+ * fields of the \c ir_loop.
+ *
+ * In this process, some conditional break-statements may be eliminated
+ * altogether. For example, if it is provable that one loop exit condition will
+ * always be satisfied before another, the unnecessary exit condition will be
+ * removed.
+ */
+extern bool
+set_loop_controls(exec_list *instructions, loop_state *ls);
+
+
+extern bool
+unroll_loops(exec_list *instructions, loop_state *ls, unsigned max_iterations);
+
+
+/**
+ * Tracking for all variables used in a loop
+ */
+class loop_variable_state : public exec_node {
+public:
+ class loop_variable *get(const ir_variable *);
+ class loop_variable *insert(ir_variable *);
+ class loop_terminator *insert(ir_if *);
+
+
+ /**
+ * Loop whose variable state is being tracked by this structure
+ */
+ ir_loop *loop;
+
+ /**
+ * Variables that have not yet been classified
+ */
+ exec_list variables;
+
+ /**
+ * Variables whose values are constant within the body of the loop
+ *
+ * This list contains \c loop_variable objects.
+ */
+ exec_list constants;
+
+ /**
+ * Induction variables for this loop
+ *
+ * This list contains \c loop_variable objects.
+ */
+ exec_list induction_variables;
+
+ /**
+ * Simple if-statements that lead to the termination of the loop
+ *
+ * This list contains \c loop_terminator objects.
+ *
+ * \sa is_loop_terminator
+ */
+ exec_list terminators;
+
+ /**
+ * Hash table containing all variables accessed in this loop
+ */
+ hash_table *var_hash;
+
+ /**
+ * Maximum number of loop iterations.
+ *
+ * If this value is negative, then the loop may be infinite. This actually
+ * means that analysis was unable to determine an upper bound on the number
+ * of loop iterations.
+ */
+ int max_iterations;
+
+ /**
+ * Number of ir_loop_jump instructions that operate on this loop
+ */
+ unsigned num_loop_jumps;
+
+ loop_variable_state()
+ {
+ this->max_iterations = -1;
+ this->num_loop_jumps = 0;
+ this->var_hash = hash_table_ctor(0, hash_table_pointer_hash,
+ hash_table_pointer_compare);
+ }
+
+ ~loop_variable_state()
+ {
+ hash_table_dtor(this->var_hash);
+ }
+};
+
+
+class loop_variable : public exec_node {
+public:
+ /** The variable in question. */
+ ir_variable *var;
+
+ /** Is the variable read in the loop before it is written? */
+ bool read_before_write;
+
+ /** Are all variables in the RHS of the assignment loop constants? */
+ bool rhs_clean;
+
+ /** Is there an assignment to the variable that is conditional? */
+ bool conditional_assignment;
+
+ /** Reference to the first assignment to the variable in the loop body. */
+ ir_assignment *first_assignment;
+
+ /** Number of assignments to the variable in the loop body. */
+ unsigned num_assignments;
+
+ /**
+ * Increment values for loop induction variables
+ *
+ * Loop induction variables have a single increment of the form
+ * \c b * \c biv + \c c, where \c b and \c c are loop constants and \c i
+ * is a basic loop induction variable.
+ *
+ * If \c iv_scale is \c NULL, 1 is used. If \c biv is the same as \c var,
+ * then \c var is a basic loop induction variable.
+ */
+ /*@{*/
+ ir_rvalue *iv_scale;
+ ir_variable *biv;
+ ir_rvalue *increment;
+ /*@}*/
+
+
+ inline bool is_loop_constant() const
+ {
+ const bool is_const = (this->num_assignments == 0)
+ || ((this->num_assignments == 1)
+ && !this->conditional_assignment
+ && !this->read_before_write
+ && this->rhs_clean);
+
+ /* If the RHS of *the* assignment is clean, then there must be exactly
+ * one assignment of the variable.
+ */
+ assert((this->rhs_clean && (this->num_assignments == 1))
+ || !this->rhs_clean);
+
+ /* Variables that are marked read-only *MUST* be loop constant.
+ */
+ assert(!this->var->read_only || (this->var->read_only && is_const));
+
+ return is_const;
+ }
+};
+
+
+class loop_terminator : public exec_node {
+public:
+ ir_if *ir;
+};
+
+
+class loop_state {
+public:
+ ~loop_state();
+
+ /**
+ * Get the loop variable state data for a particular loop
+ */
+ loop_variable_state *get(const ir_loop *);
+
+ loop_variable_state *insert(ir_loop *ir);
+
+private:
+ loop_state();
+
+ /**
+ * Hash table containing all loops that have been analyzed.
+ */
+ hash_table *ht;
+
+ void *mem_ctx;
+
+ friend class loop_analysis;
+};
+
+#endif /* LOOP_ANALYSIS_H */
diff --git a/mesalib/src/glsl/loop_controls.cpp b/mesalib/src/glsl/loop_controls.cpp
new file mode 100644
index 000000000..2ef3d3052
--- /dev/null
+++ b/mesalib/src/glsl/loop_controls.cpp
@@ -0,0 +1,301 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <climits>
+#include "main/compiler.h"
+#include "glsl_types.h"
+#include "loop_analysis.h"
+#include "ir_hierarchical_visitor.h"
+
+/**
+ * Find an initializer of a variable outside a loop
+ *
+ * Works backwards from the loop to find the pre-loop value of the variable.
+ * This is used, for example, to find the initial value of loop induction
+ * variables.
+ *
+ * \param loop Loop where \c var is an induction variable
+ * \param var Variable whose initializer is to be found
+ *
+ * \return
+ * The \c ir_rvalue assigned to the variable outside the loop. May return
+ * \c NULL if no initializer can be found.
+ */
+ir_rvalue *
+find_initial_value(ir_loop *loop, ir_variable *var)
+{
+ for (exec_node *node = loop->prev;
+ !node->is_head_sentinel();
+ node = node->prev) {
+ ir_instruction *ir = (ir_instruction *) node;
+
+ switch (ir->ir_type) {
+ case ir_type_call:
+ case ir_type_loop:
+ case ir_type_loop_jump:
+ case ir_type_return:
+ case ir_type_if:
+ return NULL;
+
+ case ir_type_function:
+ case ir_type_function_signature:
+ assert(!"Should not get here.");
+ return NULL;
+
+ case ir_type_assignment: {
+ ir_assignment *assign = ir->as_assignment();
+ ir_variable *assignee = assign->lhs->whole_variable_referenced();
+
+ if (assignee == var)
+ return (assign->condition != NULL) ? NULL : assign->rhs;
+
+ break;
+ }
+
+ default:
+ break;
+ }
+ }
+
+ return NULL;
+}
+
+
+int
+calculate_iterations(ir_rvalue *from, ir_rvalue *to, ir_rvalue *increment,
+ enum ir_expression_operation op)
+{
+ void *mem_ctx = talloc_init("%s", __func__);
+
+ ir_expression *const sub =
+ new(mem_ctx) ir_expression(ir_binop_sub, from->type, to, from);
+
+ ir_expression *const div =
+ new(mem_ctx) ir_expression(ir_binop_div, sub->type, sub, increment);
+
+ ir_constant *iter = div->constant_expression_value();
+
+ if (iter == NULL)
+ return -1;
+
+ if (!iter->type->is_integer()) {
+ ir_rvalue *cast =
+ new(mem_ctx) ir_expression(ir_unop_f2i, glsl_type::int_type, iter,
+ NULL);
+
+ iter = cast->constant_expression_value();
+ }
+
+ int iter_value = iter->get_int_component(0);
+
+ /* Make sure that the calculated number of iterations satisfies the exit
+ * condition. This is needed to catch off-by-one errors and some types of
+ * ill-formed loops. For example, we need to detect that the following
+ * loop does not have a maximum iteration count.
+ *
+ * for (float x = 0.0; x != 0.9; x += 0.2)
+ * ;
+ */
+ const int bias[] = { -1, 0, 1 };
+ bool valid_loop = false;
+
+ for (unsigned i = 0; i < Elements(bias); i++) {
+ iter = (increment->type->is_integer())
+ ? new(mem_ctx) ir_constant(iter_value + bias[i])
+ : new(mem_ctx) ir_constant(float(iter_value + bias[i]));
+
+ ir_expression *const mul =
+ new(mem_ctx) ir_expression(ir_binop_mul, increment->type, iter,
+ increment);
+
+ ir_expression *const add =
+ new(mem_ctx) ir_expression(ir_binop_add, mul->type, mul, from);
+
+ ir_expression *const cmp =
+ new(mem_ctx) ir_expression(op, glsl_type::bool_type, add, to);
+
+ ir_constant *const cmp_result = cmp->constant_expression_value();
+
+ assert(cmp_result != NULL);
+ if (cmp_result->get_bool_component(0)) {
+ iter_value += bias[i];
+ valid_loop = true;
+ break;
+ }
+ }
+
+ talloc_free(mem_ctx);
+ return (valid_loop) ? iter_value : -1;
+}
+
+
+class loop_control_visitor : public ir_hierarchical_visitor {
+public:
+ loop_control_visitor(loop_state *state)
+ {
+ this->state = state;
+ this->progress = false;
+ }
+
+ virtual ir_visitor_status visit_leave(ir_loop *ir);
+
+ loop_state *state;
+
+ bool progress;
+};
+
+
+ir_visitor_status
+loop_control_visitor::visit_leave(ir_loop *ir)
+{
+ loop_variable_state *const ls = this->state->get(ir);
+
+ /* If we've entered a loop that hasn't been analyzed, something really,
+ * really bad has happened.
+ */
+ if (ls == NULL) {
+ assert(ls != NULL);
+ return visit_continue;
+ }
+
+ /* Search the loop terminating conditions for one of the form 'i < c' where
+ * i is a loop induction variable, c is a constant, and < is any relative
+ * operator.
+ */
+ int max_iterations = ls->max_iterations;
+
+ if(ir->from && ir->to && ir->increment)
+ max_iterations = calculate_iterations(ir->from, ir->to, ir->increment, (ir_expression_operation)ir->cmp);
+
+ if(max_iterations < 0)
+ max_iterations = INT_MAX;
+
+ foreach_list(node, &ls->terminators) {
+ loop_terminator *t = (loop_terminator *) node;
+ ir_if *if_stmt = t->ir;
+
+ /* If-statements can be either 'if (expr)' or 'if (deref)'. We only care
+ * about the former here.
+ */
+ ir_expression *cond = if_stmt->condition->as_expression();
+ if (cond == NULL)
+ continue;
+
+ switch (cond->operation) {
+ case ir_binop_less:
+ case ir_binop_greater:
+ case ir_binop_lequal:
+ case ir_binop_gequal: {
+ /* The expressions that we care about will either be of the form
+ * 'counter < limit' or 'limit < counter'. Figure out which is
+ * which.
+ */
+ ir_rvalue *counter = cond->operands[0]->as_dereference_variable();
+ ir_constant *limit = cond->operands[1]->as_constant();
+ enum ir_expression_operation cmp = cond->operation;
+
+ if (limit == NULL) {
+ counter = cond->operands[1]->as_dereference_variable();
+ limit = cond->operands[0]->as_constant();
+
+ switch (cmp) {
+ case ir_binop_less: cmp = ir_binop_gequal; break;
+ case ir_binop_greater: cmp = ir_binop_lequal; break;
+ case ir_binop_lequal: cmp = ir_binop_greater; break;
+ case ir_binop_gequal: cmp = ir_binop_less; break;
+ default: assert(!"Should not get here.");
+ }
+ }
+
+ if ((counter == NULL) || (limit == NULL))
+ break;
+
+ ir_variable *var = counter->variable_referenced();
+
+ ir_rvalue *init = find_initial_value(ir, var);
+
+ foreach_list(iv_node, &ls->induction_variables) {
+ loop_variable *lv = (loop_variable *) iv_node;
+
+ if (lv->var == var) {
+ const int iterations = calculate_iterations(init, limit,
+ lv->increment,
+ cmp);
+ if (iterations >= 0) {
+ /* If the new iteration count is lower than the previously
+ * believed iteration count, update the loop control values.
+ */
+ if (iterations < max_iterations) {
+ ir->from = init->clone(ir, NULL);
+ ir->to = limit->clone(ir, NULL);
+ ir->increment = lv->increment->clone(ir, NULL);
+ ir->counter = lv->var;
+ ir->cmp = cmp;
+
+ max_iterations = iterations;
+ }
+
+ /* Remove the conditional break statement. The loop
+ * controls are now set such that the exit condition will be
+ * satisfied.
+ */
+ if_stmt->remove();
+
+ assert(ls->num_loop_jumps > 0);
+ ls->num_loop_jumps--;
+
+ this->progress = true;
+ }
+
+ break;
+ }
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+ }
+
+ /* If we have proven the one of the loop exit conditions is satisifed before
+ * running the loop once, remove the loop.
+ */
+ if (max_iterations == 0)
+ ir->remove();
+ else
+ ls->max_iterations = max_iterations;
+
+ return visit_continue;
+}
+
+
+bool
+set_loop_controls(exec_list *instructions, loop_state *ls)
+{
+ loop_control_visitor v(ls);
+
+ v.run(instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/loop_unroll.cpp b/mesalib/src/glsl/loop_unroll.cpp
new file mode 100644
index 000000000..90797bde3
--- /dev/null
+++ b/mesalib/src/glsl/loop_unroll.cpp
@@ -0,0 +1,187 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "glsl_types.h"
+#include "loop_analysis.h"
+#include "ir_hierarchical_visitor.h"
+
+class loop_unroll_visitor : public ir_hierarchical_visitor {
+public:
+ loop_unroll_visitor(loop_state *state, unsigned max_iterations)
+ {
+ this->state = state;
+ this->progress = false;
+ this->max_iterations = max_iterations;
+ }
+
+ virtual ir_visitor_status visit_leave(ir_loop *ir);
+
+ loop_state *state;
+
+ bool progress;
+ unsigned max_iterations;
+};
+
+
+ir_visitor_status
+loop_unroll_visitor::visit_leave(ir_loop *ir)
+{
+ loop_variable_state *const ls = this->state->get(ir);
+ int iterations;
+
+ /* If we've entered a loop that hasn't been analyzed, something really,
+ * really bad has happened.
+ */
+ if (ls == NULL) {
+ assert(ls != NULL);
+ return visit_continue;
+ }
+
+ iterations = ls->max_iterations;
+
+ /* Don't try to unroll loops where the number of iterations is not known
+ * at compile-time.
+ */
+ if (iterations < 0)
+ return visit_continue;
+
+ /* Don't try to unroll loops that have zillions of iterations either.
+ */
+ if (iterations > max_iterations)
+ return visit_continue;
+
+ if (ls->num_loop_jumps > 1)
+ return visit_continue;
+ else if (ls->num_loop_jumps) {
+ /* recognize loops in the form produced by ir_lower_jumps */
+ ir_instruction *last_ir =
+ ((ir_instruction*)ir->body_instructions.get_tail());
+
+ assert(last_ir != NULL);
+
+ ir_if *last_if = last_ir->as_if();
+ if (last_if) {
+ bool continue_from_then_branch;
+
+ /* Determine which if-statement branch, if any, ends with a break.
+ * The branch that did *not* have the break will get a temporary
+ * continue inserted in each iteration of the loop unroll.
+ *
+ * Note that since ls->num_loop_jumps is <= 1, it is impossible for
+ * both branches to end with a break.
+ */
+ ir_instruction *last =
+ (ir_instruction *) last_if->then_instructions.get_tail();
+
+ if (last && last->ir_type == ir_type_loop_jump
+ && ((ir_loop_jump*) last)->is_break()) {
+ continue_from_then_branch = false;
+ } else {
+ last = (ir_instruction *) last_if->then_instructions.get_tail();
+
+ if (last && last->ir_type == ir_type_loop_jump
+ && ((ir_loop_jump*) last)->is_break())
+ continue_from_then_branch = true;
+ else
+ /* Bail out if neither if-statement branch ends with a break.
+ */
+ return visit_continue;
+ }
+
+ /* Remove the break from the if-statement.
+ */
+ last->remove();
+
+ void *const mem_ctx = talloc_parent(ir);
+ ir_instruction *ir_to_replace = ir;
+
+ for (int i = 0; i < iterations; i++) {
+ exec_list copy_list;
+
+ copy_list.make_empty();
+ clone_ir_list(mem_ctx, &copy_list, &ir->body_instructions);
+
+ last_if = ((ir_instruction*)copy_list.get_tail())->as_if();
+ assert(last_if);
+
+ ir_to_replace->insert_before(&copy_list);
+ ir_to_replace->remove();
+
+ /* placeholder that will be removed in the next iteration */
+ ir_to_replace =
+ new(mem_ctx) ir_loop_jump(ir_loop_jump::jump_continue);
+
+ exec_list *const list = (continue_from_then_branch)
+ ? &last_if->then_instructions : &last_if->else_instructions;
+
+ list->push_tail(ir_to_replace);
+ }
+
+ ir_to_replace->remove();
+
+ this->progress = true;
+ return visit_continue;
+ } else if (last_ir->ir_type == ir_type_loop_jump
+ && ((ir_loop_jump *)last_ir)->is_break()) {
+ /* If the only loop-jump is a break at the end of the loop, the loop
+ * will execute exactly once. Remove the break, set the iteration
+ * count, and fall through to the normal unroller.
+ */
+ last_ir->remove();
+ iterations = 1;
+
+ this->progress = true;
+ } else
+ return visit_continue;
+ }
+
+ void *const mem_ctx = talloc_parent(ir);
+
+ for (int i = 0; i < iterations; i++) {
+ exec_list copy_list;
+
+ copy_list.make_empty();
+ clone_ir_list(mem_ctx, &copy_list, &ir->body_instructions);
+
+ ir->insert_before(&copy_list);
+ }
+
+ /* The loop has been replaced by the unrolled copies. Remove the original
+ * loop from the IR sequence.
+ */
+ ir->remove();
+
+ this->progress = true;
+ return visit_continue;
+}
+
+
+bool
+unroll_loops(exec_list *instructions, loop_state *ls, unsigned max_iterations)
+{
+ loop_unroll_visitor v(ls, max_iterations);
+
+ v.run(instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/lower_noise.cpp b/mesalib/src/glsl/lower_noise.cpp
new file mode 100644
index 000000000..cb32d2834
--- /dev/null
+++ b/mesalib/src/glsl/lower_noise.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file lower_noise.cpp
+ * IR lower pass to remove noise opcodes.
+ *
+ * \author Ian Romanick <ian.d.romanick@intel.com>
+ */
+
+#include "ir.h"
+#include "ir_rvalue_visitor.h"
+
+class lower_noise_visitor : public ir_rvalue_visitor {
+public:
+ lower_noise_visitor() : progress(false)
+ {
+ /* empty */
+ }
+
+ void handle_rvalue(ir_rvalue **rvalue)
+ {
+ if (!*rvalue)
+ return;
+
+ ir_expression *expr = (*rvalue)->as_expression();
+ if (!expr)
+ return;
+
+ /* In the future, ir_unop_noise may be replaced by a call to a function
+ * that implements noise. No hardware has a noise instruction.
+ */
+ if (expr->operation == ir_unop_noise) {
+ *rvalue = ir_constant::zero(talloc_parent(expr), expr->type);
+ this->progress = true;
+ }
+ }
+
+ bool progress;
+};
+
+
+bool
+lower_noise(exec_list *instructions)
+{
+ lower_noise_visitor v;
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/lower_variable_index_to_cond_assign.cpp b/mesalib/src/glsl/lower_variable_index_to_cond_assign.cpp
new file mode 100644
index 000000000..5f0dd7311
--- /dev/null
+++ b/mesalib/src/glsl/lower_variable_index_to_cond_assign.cpp
@@ -0,0 +1,358 @@
+/*
+ * Copyright © 2010 Luca Barbieri
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file lower_variable_index_to_cond_assign.cpp
+ *
+ * Turns non-constant indexing into array types to a series of
+ * conditional moves of each element into a temporary.
+ *
+ * Pre-DX10 GPUs often don't have a native way to do this operation,
+ * and this works around that.
+ */
+
+#include "ir.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_optimization.h"
+#include "glsl_types.h"
+#include "main/macros.h"
+
+struct assignment_generator
+{
+ ir_instruction* base_ir;
+ ir_rvalue* array;
+ bool is_write;
+ ir_variable* var;
+
+ assignment_generator()
+ {
+ }
+
+ void generate(unsigned i, ir_rvalue* condition, exec_list *list) const
+ {
+ /* Just clone the rest of the deref chain when trying to get at the
+ * underlying variable.
+ */
+ void *mem_ctx = talloc_parent(base_ir);
+ ir_rvalue *element =
+ new(mem_ctx) ir_dereference_array(this->array->clone(mem_ctx, NULL),
+ new(mem_ctx) ir_constant(i));
+ ir_rvalue *variable = new(mem_ctx) ir_dereference_variable(this->var);
+
+ ir_assignment *assignment = (is_write)
+ ? new(mem_ctx) ir_assignment(element, variable, condition)
+ : new(mem_ctx) ir_assignment(variable, element, condition);
+
+ list->push_tail(assignment);
+ }
+};
+
+struct switch_generator
+{
+ /* make TFunction a template parameter if you need to use other generators */
+ typedef assignment_generator TFunction;
+ const TFunction& generator;
+
+ ir_variable* index;
+ unsigned linear_sequence_max_length;
+ unsigned condition_components;
+
+ void *mem_ctx;
+
+ switch_generator(const TFunction& generator, ir_variable *index,
+ unsigned linear_sequence_max_length,
+ unsigned condition_components)
+ : generator(generator), index(index),
+ linear_sequence_max_length(linear_sequence_max_length),
+ condition_components(condition_components)
+ {
+ this->mem_ctx = talloc_parent(index);
+ }
+
+ void linear_sequence(unsigned begin, unsigned end, exec_list *list)
+ {
+ if (begin == end)
+ return;
+
+ /* If the array access is a read, read the first element of this subregion
+ * unconditionally. The remaining tests will possibly overwrite this
+ * value with one of the other array elements.
+ *
+ * This optimization cannot be done for writes because it will cause the
+ * first element of the subregion to be written possibly *in addition* to
+ * one of the other elements.
+ */
+ unsigned first;
+ if (!this->generator.is_write) {
+ this->generator.generate(begin, 0, list);
+ first = begin + 1;
+ } else {
+ first = begin;
+ }
+
+ for (unsigned i = first; i < end; i += 4) {
+ const unsigned comps = MIN2(condition_components, end - i);
+
+ ir_rvalue *broadcast_index =
+ new(this->mem_ctx) ir_dereference_variable(index);
+
+ if (comps) {
+ const ir_swizzle_mask m = { 0, 0, 0, 0, comps, false };
+ broadcast_index = new(this->mem_ctx) ir_swizzle(broadcast_index, m);
+ }
+
+ /* Compare the desired index value with the next block of four indices.
+ */
+ ir_constant_data test_indices_data;
+ memset(&test_indices_data, 0, sizeof(test_indices_data));
+ test_indices_data.i[0] = i;
+ test_indices_data.i[1] = i + 1;
+ test_indices_data.i[2] = i + 2;
+ test_indices_data.i[3] = i + 3;
+ ir_constant *const test_indices =
+ new(this->mem_ctx) ir_constant(broadcast_index->type,
+ &test_indices_data);
+
+ ir_rvalue *const condition_val =
+ new(this->mem_ctx) ir_expression(ir_binop_equal,
+ &glsl_type::bool_type[comps - 1],
+ broadcast_index,
+ test_indices);
+
+ ir_variable *const condition =
+ new(this->mem_ctx) ir_variable(condition_val->type,
+ "dereference_array_condition",
+ ir_var_temporary);
+ list->push_tail(condition);
+
+ ir_rvalue *const cond_deref =
+ new(this->mem_ctx) ir_dereference_variable(condition);
+ list->push_tail(new(this->mem_ctx) ir_assignment(cond_deref,
+ condition_val, 0));
+
+ if (comps == 1) {
+ ir_rvalue *const cond_deref =
+ new(this->mem_ctx) ir_dereference_variable(condition);
+
+ this->generator.generate(i, cond_deref, list);
+ } else {
+ for (unsigned j = 0; j < comps; j++) {
+ ir_rvalue *const cond_deref =
+ new(this->mem_ctx) ir_dereference_variable(condition);
+ ir_rvalue *const cond_swiz =
+ new(this->mem_ctx) ir_swizzle(cond_deref, j, 0, 0, 0, 1);
+
+ this->generator.generate(i + j, cond_swiz, list);
+ }
+ }
+ }
+ }
+
+ void bisect(unsigned begin, unsigned end, exec_list *list)
+ {
+ unsigned middle = (begin + end) >> 1;
+
+ assert(index->type->is_integer());
+
+ ir_constant *const middle_c = (index->type->base_type == GLSL_TYPE_UINT)
+ ? new(this->mem_ctx) ir_constant((unsigned)middle)
+ : new(this->mem_ctx) ir_constant((int)middle);
+
+
+ ir_dereference_variable *deref =
+ new(this->mem_ctx) ir_dereference_variable(this->index);
+
+ ir_expression *less =
+ new(this->mem_ctx) ir_expression(ir_binop_less, glsl_type::bool_type,
+ deref, middle_c);
+
+ ir_if *if_less = new(this->mem_ctx) ir_if(less);
+
+ generate(begin, middle, &if_less->then_instructions);
+ generate(middle, end, &if_less->else_instructions);
+
+ list->push_tail(if_less);
+ }
+
+ void generate(unsigned begin, unsigned end, exec_list *list)
+ {
+ unsigned length = end - begin;
+ if (length <= this->linear_sequence_max_length)
+ return linear_sequence(begin, end, list);
+ else
+ return bisect(begin, end, list);
+ }
+};
+
+/**
+ * Visitor class for replacing expressions with ir_constant values.
+ */
+
+class variable_index_to_cond_assign_visitor : public ir_rvalue_visitor {
+public:
+ variable_index_to_cond_assign_visitor(bool lower_input,
+ bool lower_output,
+ bool lower_temp,
+ bool lower_uniform)
+ {
+ this->progress = false;
+ this->lower_inputs = lower_input;
+ this->lower_outputs = lower_output;
+ this->lower_temps = lower_temp;
+ this->lower_uniforms = lower_uniform;
+ }
+
+ bool progress;
+ bool lower_inputs;
+ bool lower_outputs;
+ bool lower_temps;
+ bool lower_uniforms;
+
+ bool is_array_or_matrix(const ir_instruction *ir) const
+ {
+ return (ir->type->is_array() || ir->type->is_matrix());
+ }
+
+ bool needs_lowering(ir_dereference_array *deref) const
+ {
+ if (deref == NULL || deref->array_index->as_constant()
+ || !is_array_or_matrix(deref->array))
+ return false;
+
+ if (deref->array->ir_type == ir_type_constant)
+ return this->lower_temps;
+
+ const ir_variable *const var = deref->array->variable_referenced();
+ switch (var->mode) {
+ case ir_var_auto:
+ case ir_var_temporary:
+ return this->lower_temps;
+ case ir_var_uniform:
+ return this->lower_uniforms;
+ case ir_var_in:
+ return (var->location == -1) ? this->lower_temps : this->lower_inputs;
+ case ir_var_out:
+ return (var->location == -1) ? this->lower_temps : this->lower_outputs;
+ case ir_var_inout:
+ return this->lower_temps;
+ }
+
+ assert(!"Should not get here.");
+ return false;
+ }
+
+ ir_variable *convert_dereference_array(ir_dereference_array *orig_deref,
+ ir_rvalue* value)
+ {
+ assert(is_array_or_matrix(orig_deref->array));
+
+ const unsigned length = (orig_deref->array->type->is_array())
+ ? orig_deref->array->type->length
+ : orig_deref->array->type->matrix_columns;
+
+ void *const mem_ctx = talloc_parent(base_ir);
+ ir_variable *var =
+ new(mem_ctx) ir_variable(orig_deref->type, "dereference_array_value",
+ ir_var_temporary);
+ base_ir->insert_before(var);
+
+ if (value) {
+ ir_dereference *lhs = new(mem_ctx) ir_dereference_variable(var);
+ ir_assignment *assign = new(mem_ctx) ir_assignment(lhs, value, NULL);
+
+ base_ir->insert_before(assign);
+ }
+
+ /* Store the index to a temporary to avoid reusing its tree. */
+ ir_variable *index =
+ new(mem_ctx) ir_variable(orig_deref->array_index->type,
+ "dereference_array_index", ir_var_temporary);
+ base_ir->insert_before(index);
+
+ ir_dereference *lhs = new(mem_ctx) ir_dereference_variable(index);
+ ir_assignment *assign =
+ new(mem_ctx) ir_assignment(lhs, orig_deref->array_index, NULL);
+ base_ir->insert_before(assign);
+
+ assignment_generator ag;
+ ag.array = orig_deref->array;
+ ag.base_ir = base_ir;
+ ag.var = var;
+ ag.is_write = !!value;
+
+ switch_generator sg(ag, index, 4, 4);
+
+ exec_list list;
+ sg.generate(0, length, &list);
+ base_ir->insert_before(&list);
+
+ return var;
+ }
+
+ virtual void handle_rvalue(ir_rvalue **pir)
+ {
+ if (!*pir)
+ return;
+
+ ir_dereference_array* orig_deref = (*pir)->as_dereference_array();
+ if (needs_lowering(orig_deref)) {
+ ir_variable* var = convert_dereference_array(orig_deref, 0);
+ assert(var);
+ *pir = new(talloc_parent(base_ir)) ir_dereference_variable(var);
+ this->progress = true;
+ }
+ }
+
+ ir_visitor_status
+ visit_leave(ir_assignment *ir)
+ {
+ ir_rvalue_visitor::visit_leave(ir);
+
+ ir_dereference_array *orig_deref = ir->lhs->as_dereference_array();
+
+ if (needs_lowering(orig_deref)) {
+ convert_dereference_array(orig_deref, ir->rhs);
+ ir->remove();
+ this->progress = true;
+ }
+
+ return visit_continue;
+ }
+};
+
+bool
+lower_variable_index_to_cond_assign(exec_list *instructions,
+ bool lower_input,
+ bool lower_output,
+ bool lower_temp,
+ bool lower_uniform)
+{
+ variable_index_to_cond_assign_visitor v(lower_input,
+ lower_output,
+ lower_temp,
+ lower_uniform);
+
+ visit_list_elements(&v, instructions);
+
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/main.cpp b/mesalib/src/glsl/main.cpp
new file mode 100644
index 000000000..b51b2405c
--- /dev/null
+++ b/mesalib/src/glsl/main.cpp
@@ -0,0 +1,342 @@
+/*
+ * Copyright © 2008, 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <cstdlib>
+#include <cstdio>
+#include <io.h>
+
+#ifdef _MSC_VER
+#define __STDC__ 1
+#include <getopt.h>
+typedef size_t ssize_t;
+#define open _open
+#define read _read
+#define fstat _fstat
+#define stat _stat
+#define close _close
+#define O_RDONLY _O_RDONLY
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "ast.h"
+#include "glsl_parser_extras.h"
+#include "glsl_parser.h"
+#include "ir_optimization.h"
+#include "ir_print_visitor.h"
+#include "program.h"
+#include "loop_analysis.h"
+
+extern "C" struct gl_shader *
+_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type);
+
+/* Copied from shader_api.c for the stand-alone compiler.
+ */
+struct gl_shader *
+_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type)
+{
+ struct gl_shader *shader;
+
+ (void) ctx;
+
+ assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER);
+ shader = talloc_zero(NULL, struct gl_shader);
+ if (shader) {
+ shader->Type = type;
+ shader->Name = name;
+ shader->RefCount = 1;
+ }
+ return shader;
+}
+
+static void
+initialize_context(GLcontext *ctx, gl_api api)
+{
+ memset(ctx, 0, sizeof(*ctx));
+
+ ctx->API = api;
+
+ ctx->Extensions.ARB_draw_buffers = GL_TRUE;
+ ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
+ ctx->Extensions.EXT_texture_array = GL_TRUE;
+ ctx->Extensions.NV_texture_rectangle = GL_TRUE;
+
+ /* 1.10 minimums. */
+ ctx->Const.MaxLights = 8;
+ ctx->Const.MaxClipPlanes = 8;
+ ctx->Const.MaxTextureUnits = 2;
+
+ /* More than the 1.10 minimum to appease parser tests taken from
+ * apps that (hopefully) already checked the number of coords.
+ */
+ ctx->Const.MaxTextureCoordUnits = 4;
+
+ ctx->Const.VertexProgram.MaxAttribs = 16;
+ ctx->Const.VertexProgram.MaxUniformComponents = 512;
+ ctx->Const.MaxVarying = 8;
+ ctx->Const.MaxVertexTextureImageUnits = 0;
+ ctx->Const.MaxCombinedTextureImageUnits = 2;
+ ctx->Const.MaxTextureImageUnits = 2;
+ ctx->Const.FragmentProgram.MaxUniformComponents = 64;
+
+ ctx->Const.MaxDrawBuffers = 2;
+
+ ctx->Driver.NewShader = _mesa_new_shader;
+}
+
+/* Returned string will have 'ctx' as its talloc owner. */
+static char *
+load_text_file(void *ctx, const char *file_name)
+{
+ char *text = NULL;
+ struct stat st;
+ ssize_t total_read = 0;
+ int fd = open(file_name, O_RDONLY);
+
+ if (fd < 0) {
+ return NULL;
+ }
+
+ if (fstat(fd, & st) == 0) {
+ text = (char *) talloc_size(ctx, st.st_size + 1);
+ if (text != NULL) {
+ do {
+ ssize_t bytes = read(fd, text + total_read,
+ st.st_size - total_read);
+ if (bytes < 0) {
+ free(text);
+ text = NULL;
+ break;
+ }
+
+ if (bytes == 0) {
+ break;
+ }
+
+ total_read += bytes;
+ } while (total_read < st.st_size);
+
+ text[total_read] = '\0';
+ }
+ }
+
+ close(fd);
+
+ return text;
+}
+
+
+void
+usage_fail(const char *name)
+{
+ printf("%s <filename.frag|filename.vert>\n", name);
+ exit(EXIT_FAILURE);
+}
+
+
+int glsl_es = 0;
+int dump_ast = 0;
+int dump_hir = 0;
+int dump_lir = 0;
+int do_link = 0;
+
+const struct option compiler_opts[] = {
+ { "glsl-es", 0, &glsl_es, 1 },
+ { "dump-ast", 0, &dump_ast, 1 },
+ { "dump-hir", 0, &dump_hir, 1 },
+ { "dump-lir", 0, &dump_lir, 1 },
+ { "link", 0, &do_link, 1 },
+ { NULL, 0, NULL, 0 }
+};
+
+void
+compile_shader(GLcontext *ctx, struct gl_shader *shader)
+{
+ struct _mesa_glsl_parse_state *state =
+ new(shader) _mesa_glsl_parse_state(ctx, shader->Type, shader);
+
+ const char *source = shader->Source;
+ state->error = preprocess(state, &source, &state->info_log,
+ state->extensions, ctx->API);
+
+ if (!state->error) {
+ _mesa_glsl_lexer_ctor(state, source);
+ _mesa_glsl_parse(state);
+ _mesa_glsl_lexer_dtor(state);
+ }
+
+ if (dump_ast) {
+ foreach_list_const(n, &state->translation_unit) {
+ ast_node *ast = exec_node_data(ast_node, n, link);
+ ast->print();
+ }
+ printf("\n\n");
+ }
+
+ shader->ir = new(shader) exec_list;
+ if (!state->error && !state->translation_unit.is_empty())
+ _mesa_ast_to_hir(shader->ir, state);
+
+ /* Print out the unoptimized IR. */
+ if (!state->error && dump_hir) {
+ validate_ir_tree(shader->ir);
+ _mesa_print_ir(shader->ir, state);
+ }
+
+ /* Optimization passes */
+ if (!state->error && !shader->ir->is_empty()) {
+ bool progress;
+ do {
+ progress = false;
+
+ progress = do_function_inlining(shader->ir) || progress;
+ progress = do_if_simplification(shader->ir) || progress;
+ progress = do_copy_propagation(shader->ir) || progress;
+ progress = do_dead_code_local(shader->ir) || progress;
+ progress = do_dead_code_unlinked(shader->ir) || progress;
+ progress = do_tree_grafting(shader->ir) || progress;
+ progress = do_constant_propagation(shader->ir) || progress;
+ progress = do_constant_variable_unlinked(shader->ir) || progress;
+ progress = do_constant_folding(shader->ir) || progress;
+ progress = do_algebraic(shader->ir) || progress;
+ progress = do_vec_index_to_swizzle(shader->ir) || progress;
+ progress = do_vec_index_to_cond_assign(shader->ir) || progress;
+ progress = do_swizzle_swizzle(shader->ir) || progress;
+
+ loop_state *ls = analyze_loop_variables(shader->ir);
+ progress = set_loop_controls(shader->ir, ls) || progress;
+ progress = unroll_loops(shader->ir, ls, 32) || progress;
+ delete ls;
+ } while (progress);
+
+ validate_ir_tree(shader->ir);
+ }
+
+
+ /* Print out the resulting IR */
+ if (!state->error && dump_lir) {
+ _mesa_print_ir(shader->ir, state);
+ }
+
+ shader->symbols = state->symbols;
+ shader->CompileStatus = !state->error;
+ shader->Version = state->language_version;
+ memcpy(shader->builtins_to_link, state->builtins_to_link,
+ sizeof(shader->builtins_to_link[0]) * state->num_builtins_to_link);
+ shader->num_builtins_to_link = state->num_builtins_to_link;
+
+ if (shader->InfoLog)
+ talloc_free(shader->InfoLog);
+
+ shader->InfoLog = state->info_log;
+
+ /* Retain any live IR, but trash the rest. */
+ reparent_ir(shader->ir, shader);
+
+ talloc_free(state);
+
+ return;
+}
+
+int
+main(int argc, char **argv)
+{
+ int status = EXIT_SUCCESS;
+ GLcontext local_ctx;
+ GLcontext *ctx = &local_ctx;
+
+ int c;
+ int idx = 0;
+ while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1)
+ /* empty */ ;
+
+
+ if (argc <= optind)
+ usage_fail(argv[0]);
+
+ initialize_context(ctx, (glsl_es) ? API_OPENGLES2 : API_OPENGL);
+
+ struct gl_shader_program *whole_program;
+
+ whole_program = talloc_zero (NULL, struct gl_shader_program);
+ assert(whole_program != NULL);
+
+ for (/* empty */; argc > optind; optind++) {
+ whole_program->Shaders = (struct gl_shader **)
+ talloc_realloc(whole_program, whole_program->Shaders,
+ struct gl_shader *, whole_program->NumShaders + 1);
+ assert(whole_program->Shaders != NULL);
+
+ struct gl_shader *shader = talloc_zero(whole_program, gl_shader);
+
+ whole_program->Shaders[whole_program->NumShaders] = shader;
+ whole_program->NumShaders++;
+
+ const unsigned len = strlen(argv[optind]);
+ if (len < 6)
+ usage_fail(argv[0]);
+
+ const char *const ext = & argv[optind][len - 5];
+ if (strncmp(".vert", ext, 5) == 0)
+ shader->Type = GL_VERTEX_SHADER;
+ else if (strncmp(".geom", ext, 5) == 0)
+ shader->Type = GL_GEOMETRY_SHADER;
+ else if (strncmp(".frag", ext, 5) == 0)
+ shader->Type = GL_FRAGMENT_SHADER;
+ else
+ usage_fail(argv[0]);
+
+ shader->Source = load_text_file(whole_program, argv[optind]);
+ if (shader->Source == NULL) {
+ printf("File \"%s\" does not exist.\n", argv[optind]);
+ exit(EXIT_FAILURE);
+ }
+
+ compile_shader(ctx, shader);
+
+ if (!shader->CompileStatus) {
+ printf("Info log for %s:\n%s\n", argv[optind], shader->InfoLog);
+ status = EXIT_FAILURE;
+ break;
+ }
+ }
+
+ if ((status == EXIT_SUCCESS) && do_link) {
+ link_shaders(ctx, whole_program);
+ status = (whole_program->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE;
+
+ if (strlen(whole_program->InfoLog) > 0)
+ printf("Info log for linking:\n%s\n", whole_program->InfoLog);
+ }
+
+ for (unsigned i = 0; i < whole_program->_NumLinkedShaders; i++)
+ talloc_free(whole_program->_LinkedShaders[i]);
+
+ talloc_free(whole_program);
+ _mesa_glsl_release_types();
+ _mesa_glsl_release_functions();
+
+ return status;
+}
diff --git a/mesalib/src/glsl/opt_redundant_jumps.cpp b/mesalib/src/glsl/opt_redundant_jumps.cpp
new file mode 100644
index 000000000..edf4bb6c2
--- /dev/null
+++ b/mesalib/src/glsl/opt_redundant_jumps.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file opt_redundant_jumps.cpp
+ * Remove certain types of redundant jumps
+ */
+
+#include "ir.h"
+
+class redundant_jumps_visitor : public ir_hierarchical_visitor {
+public:
+ redundant_jumps_visitor()
+ {
+ this->progress = false;
+ }
+
+ virtual ir_visitor_status visit_leave(ir_if *);
+ virtual ir_visitor_status visit_leave(ir_loop *);
+
+ bool progress;
+};
+
+
+ir_visitor_status
+redundant_jumps_visitor::visit_leave(ir_if *ir)
+{
+ /* If the last instruction in both branches is a 'break' or a 'continue',
+ * pull it out of the branches and insert it after the if-statment. Note
+ * that both must be the same type (either 'break' or 'continue').
+ */
+ ir_instruction *const last_then =
+ (ir_instruction *) ir->then_instructions.get_tail();
+ ir_instruction *const last_else =
+ (ir_instruction *) ir->else_instructions.get_tail();
+
+ if ((last_then == NULL) || (last_else == NULL))
+ return visit_continue;
+
+ if ((last_then->ir_type != ir_type_loop_jump)
+ || (last_else->ir_type != ir_type_loop_jump))
+ return visit_continue;
+
+ ir_loop_jump *const then_jump = (ir_loop_jump *) last_then;
+ ir_loop_jump *const else_jump = (ir_loop_jump *) last_else;
+
+ if (then_jump->mode != else_jump->mode)
+ return visit_continue;
+
+ then_jump->remove();
+ else_jump->remove();
+ this->progress = true;
+
+ ir->insert_after(then_jump);
+
+ /* If both branchs of the if-statement are now empty, remove the
+ * if-statement.
+ */
+ if (ir->then_instructions.is_empty() && ir->else_instructions.is_empty())
+ ir->remove();
+
+ return visit_continue;
+}
+
+
+ir_visitor_status
+redundant_jumps_visitor::visit_leave(ir_loop *ir)
+{
+ /* If the last instruction of a loop body is a 'continue', remove it.
+ */
+ ir_instruction *const last =
+ (ir_instruction *) ir->body_instructions.get_tail();
+
+ if (last && (last->ir_type == ir_type_loop_jump)
+ && (((ir_loop_jump *) last)->mode == ir_loop_jump::jump_continue)) {
+ last->remove();
+ this->progress = true;
+ }
+
+ return visit_continue;
+}
+
+
+bool
+optimize_redundant_jumps(exec_list *instructions)
+{
+ redundant_jumps_visitor v;
+
+ v.run(instructions);
+ return v.progress;
+}
diff --git a/mesalib/src/glsl/pp/Makefile b/mesalib/src/glsl/pp/Makefile
deleted file mode 100644
index fda1c4202..000000000
--- a/mesalib/src/glsl/pp/Makefile
+++ /dev/null
@@ -1,27 +0,0 @@
-#src/glsl/pp/Makefile
-
-TOP = ../../..
-
-include $(TOP)/configs/current
-
-LIBNAME = glslpp
-
-C_SOURCES = \
- sl_pp_context.c \
- sl_pp_define.c \
- sl_pp_dict.c \
- sl_pp_error.c \
- sl_pp_expression.c \
- sl_pp_extension.c \
- sl_pp_if.c \
- sl_pp_line.c \
- sl_pp_macro.c \
- sl_pp_pragma.c \
- sl_pp_process.c \
- sl_pp_purify.c \
- sl_pp_token.c \
- sl_pp_token_util.c \
- sl_pp_version.c
-
-include ../Makefile.template
-
diff --git a/mesalib/src/glsl/pp/sl_pp_context.c b/mesalib/src/glsl/pp/sl_pp_context.c
deleted file mode 100644
index 74a9bdddf..000000000
--- a/mesalib/src/glsl/pp/sl_pp_context.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_public.h"
-#include "sl_pp_context.h"
-
-
-struct sl_pp_context *
-sl_pp_context_create(const char *input,
- const struct sl_pp_purify_options *options)
-{
- struct sl_pp_context *context;
-
- context = calloc(1, sizeof(struct sl_pp_context));
- if (!context) {
- return NULL;
- }
-
- if (sl_pp_dict_init(context)) {
- sl_pp_context_destroy(context);
- return NULL;
- }
-
- context->getc_buf_capacity = 64;
- context->getc_buf = malloc(context->getc_buf_capacity * sizeof(char));
- if (!context->getc_buf) {
- sl_pp_context_destroy(context);
- return NULL;
- }
-
- if (sl_pp_token_buffer_init(&context->tokens, context)) {
- sl_pp_context_destroy(context);
- return NULL;
- }
-
- context->macro_tail = &context->macro;
- context->if_ptr = SL_PP_MAX_IF_NESTING;
- context->if_value = 1;
- memset(context->error_msg, 0, sizeof(context->error_msg));
- context->error_line = 1;
- context->line = 1;
- context->file = 0;
-
- sl_pp_purify_state_init(&context->pure, input, options);
-
- memset(&context->process_state, 0, sizeof(context->process_state));
-
- return context;
-}
-
-void
-sl_pp_context_destroy(struct sl_pp_context *context)
-{
- if (context) {
- free(context->cstr_pool);
- sl_pp_macro_free(context->macro);
- free(context->getc_buf);
- sl_pp_token_buffer_destroy(&context->tokens);
- free(context->process_state.out);
- free(context);
- }
-}
-
-const char *
-sl_pp_context_error_message(const struct sl_pp_context *context)
-{
- return context->error_msg;
-}
-
-void
-sl_pp_context_error_position(const struct sl_pp_context *context,
- unsigned int *file,
- unsigned int *line)
-{
- if (file) {
- *file = 0;
- }
- if (line) {
- *line = context->error_line;
- }
-}
-
-int
-sl_pp_context_add_predefined(struct sl_pp_context *context,
- const char *name,
- const char *value)
-{
- struct sl_pp_predefined pre;
-
- if (context->num_predefined == SL_PP_MAX_PREDEFINED) {
- return -1;
- }
-
- pre.name = sl_pp_context_add_unique_str(context, name);
- if (pre.name == -1) {
- return -1;
- }
-
- pre.value = sl_pp_context_add_unique_str(context, value);
- if (pre.value == -1) {
- return -1;
- }
-
- context->predefined[context->num_predefined++] = pre;
- return 0;
-}
-
-int
-sl_pp_context_add_unique_str(struct sl_pp_context *context,
- const char *str)
-{
- unsigned int size;
- unsigned int offset = 0;
-
- size = strlen(str) + 1;
-
- /* Find out if this is a unique string. */
- while (offset < context->cstr_pool_len) {
- const char *str2;
- unsigned int size2;
-
- str2 = &context->cstr_pool[offset];
- size2 = strlen(str2) + 1;
- if (size == size2 && !memcmp(str, str2, size - 1)) {
- return offset;
- }
-
- offset += size2;
- }
-
- if (context->cstr_pool_len + size > context->cstr_pool_max) {
- context->cstr_pool_max = (context->cstr_pool_len + size + 0xffff) & ~0xffff;
- context->cstr_pool = realloc(context->cstr_pool, context->cstr_pool_max);
- }
-
- if (!context->cstr_pool) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- offset = context->cstr_pool_len;
- memcpy(&context->cstr_pool[offset], str, size);
- context->cstr_pool_len += size;
-
- return offset;
-}
-
-const char *
-sl_pp_context_cstr(const struct sl_pp_context *context,
- int offset)
-{
- if (offset == -1) {
- return NULL;
- }
- return &context->cstr_pool[offset];
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_context.h b/mesalib/src/glsl/pp/sl_pp_context.h
deleted file mode 100644
index 8abb9708b..000000000
--- a/mesalib/src/glsl/pp/sl_pp_context.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_CONTEXT_H
-#define SL_PP_CONTEXT_H
-
-#include "sl_pp_dict.h"
-#include "sl_pp_macro.h"
-#include "sl_pp_process.h"
-#include "sl_pp_purify.h"
-#include "sl_pp_token_util.h"
-
-
-#define SL_PP_MAX_IF_NESTING 64
-
-#define SL_PP_MAX_ERROR_MSG 1024
-
-#define SL_PP_MAX_EXTENSIONS 16
-
-#define SL_PP_MAX_PREDEFINED 16
-
-struct sl_pp_extension {
- int name; /*< GL_VENDOR_extension_name */
-};
-
-struct sl_pp_predefined {
- int name;
- int value;
-};
-
-union sl_pp_if_state {
- struct {
- unsigned int condition:1;
- unsigned int went_thru_else:1;
- unsigned int had_true_cond:1;
- } u;
- unsigned int value;
-};
-
-struct sl_pp_context {
- char *cstr_pool;
- unsigned int cstr_pool_max;
- unsigned int cstr_pool_len;
- struct sl_pp_dict dict;
-
- struct sl_pp_macro *macro;
- struct sl_pp_macro **macro_tail;
-
- struct sl_pp_extension extensions[SL_PP_MAX_EXTENSIONS];
- unsigned int num_extensions;
-
- struct sl_pp_predefined predefined[SL_PP_MAX_PREDEFINED];
- unsigned int num_predefined;
-
- union sl_pp_if_state if_stack[SL_PP_MAX_IF_NESTING];
- unsigned int if_ptr;
- unsigned int if_value;
-
- char error_msg[SL_PP_MAX_ERROR_MSG];
- unsigned int error_line;
-
- unsigned int line;
- unsigned int file;
-
- struct sl_pp_purify_state pure;
-
- char *getc_buf;
- unsigned int getc_buf_size;
- unsigned int getc_buf_capacity;
-
- struct sl_pp_token_buffer tokens;
-
- struct sl_pp_process_state process_state;
-};
-
-#endif /* SL_PP_CONTEXT_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_define.c b/mesalib/src/glsl/pp/sl_pp_define.c
deleted file mode 100644
index 808a6a0d4..000000000
--- a/mesalib/src/glsl/pp/sl_pp_define.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_process.h"
-#include "sl_pp_public.h"
-
-
-static void
-skip_whitespace(const struct sl_pp_token_info *input,
- unsigned int *first,
- unsigned int last)
-{
- while (*first < last && input[*first].token == SL_PP_WHITESPACE) {
- (*first)++;
- }
-}
-
-
-static int
-_parse_formal_args(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int *first,
- unsigned int last,
- struct sl_pp_macro *macro)
-{
- struct sl_pp_macro_formal_arg **arg;
-
- macro->num_args = 0;
-
- skip_whitespace(input, first, last);
- if (*first < last) {
- if (input[*first].token == SL_PP_RPAREN) {
- (*first)++;
- return 0;
- }
- } else {
- strcpy(context->error_msg, "expected either macro formal argument or `)'");
- return -1;
- }
-
- arg = &macro->arg;
-
- for (;;) {
- if (*first < last && input[*first].token != SL_PP_IDENTIFIER) {
- strcpy(context->error_msg, "expected macro formal argument");
- return -1;
- }
-
- *arg = malloc(sizeof(struct sl_pp_macro_formal_arg));
- if (!*arg) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- (**arg).name = input[*first].data.identifier;
- (*first)++;
-
- (**arg).next = NULL;
- arg = &(**arg).next;
-
- macro->num_args++;
-
- skip_whitespace(input, first, last);
- if (*first < last) {
- if (input[*first].token == SL_PP_COMMA) {
- (*first)++;
- skip_whitespace(input, first, last);
- } else if (input[*first].token == SL_PP_RPAREN) {
- (*first)++;
- return 0;
- } else {
- strcpy(context->error_msg, "expected either `,' or `)'");
- return -1;
- }
- } else {
- strcpy(context->error_msg, "expected either `,' or `)'");
- return -1;
- }
- }
-
- /* Should not gete here. */
-}
-
-
-int
-sl_pp_process_define(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- int macro_name = -1;
- struct sl_pp_macro *macro;
- unsigned int i;
- unsigned int body_len;
- unsigned int j;
-
- if (first < last && input[first].token == SL_PP_IDENTIFIER) {
- macro_name = input[first].data.identifier;
- first++;
- }
- if (macro_name == -1) {
- strcpy(context->error_msg, "expected macro name");
- return -1;
- }
-
- /* Check for reserved macro names */
- {
- const char *name = sl_pp_context_cstr(context, macro_name);
-
- if (strstr(name, "__")) {
- strcpy(context->error_msg, "macro names containing `__' are reserved");
- return 1;
- }
- if (name[0] == 'G' && name[1] == 'L' && name[2] == '_') {
- strcpy(context->error_msg, "macro names prefixed with `GL_' are reserved");
- return 1;
- }
- }
-
- for (macro = context->macro; macro; macro = macro->next) {
- if (macro->name == macro_name) {
- break;
- }
- }
-
- if (!macro) {
- macro = sl_pp_macro_new();
- if (!macro) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- *context->macro_tail = macro;
- context->macro_tail = &macro->next;
- } else {
- sl_pp_macro_reset(macro);
- }
-
- macro->name = macro_name;
-
- /*
- * If there is no whitespace between macro name and left paren, a macro
- * formal argument list follows. This is the only place where the presence
- * of a whitespace matters and it's the only reason why we are dealing
- * with whitespace at this level.
- */
- if (first < last && input[first].token == SL_PP_LPAREN) {
- first++;
- if (_parse_formal_args(context, input, &first, last, macro)) {
- return -1;
- }
- }
-
- /* Calculate body size, trim out whitespace, make room for EOF. */
- body_len = 1;
- for (i = first; i < last; i++) {
- if (input[i].token != SL_PP_WHITESPACE) {
- body_len++;
- }
- }
-
- macro->body = malloc(sizeof(struct sl_pp_token_info) * body_len);
- if (!macro->body) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- for (j = 0, i = first; i < last; i++) {
- if (input[i].token != SL_PP_WHITESPACE) {
- macro->body[j++] = input[i];
- }
- }
- macro->body[j++].token = SL_PP_EOF;
-
- return 0;
-}
-
-
-int
-sl_pp_process_undef(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- int macro_name = -1;
- struct sl_pp_macro **pmacro;
- struct sl_pp_macro *macro;
-
- if (first < last && input[first].token == SL_PP_IDENTIFIER) {
- macro_name = input[first].data.identifier;
- }
- if (macro_name == -1) {
- return 0;
- }
-
- for (pmacro = &context->macro; *pmacro; pmacro = &(**pmacro).next) {
- if ((**pmacro).name == macro_name) {
- break;
- }
- }
- if (!*pmacro) {
- return 0;
- }
-
- macro = *pmacro;
- *pmacro = macro->next;
- macro->next = NULL;
- sl_pp_macro_free(macro);
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_dict.c b/mesalib/src/glsl/pp/sl_pp_dict.c
deleted file mode 100644
index 062139e6a..000000000
--- a/mesalib/src/glsl/pp/sl_pp_dict.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include "sl_pp_public.h"
-#include "sl_pp_context.h"
-#include "sl_pp_dict.h"
-
-
-#define ADD_NAME_STR(CTX, NAME, STR)\
- do {\
- (CTX)->dict.NAME = sl_pp_context_add_unique_str((CTX), (STR));\
- if ((CTX)->dict.NAME == -1) {\
- return -1;\
- }\
- } while (0)
-
-#define ADD_NAME(CTX, NAME) ADD_NAME_STR(CTX, NAME, #NAME)
-
-
-int
-sl_pp_dict_init(struct sl_pp_context *context)
-{
- ADD_NAME(context, all);
-
- ADD_NAME(context, require);
- ADD_NAME(context, enable);
- ADD_NAME(context, warn);
- ADD_NAME(context, disable);
-
- ADD_NAME(context, defined);
-
- ADD_NAME_STR(context, ___LINE__, "__LINE__");
- ADD_NAME_STR(context, ___FILE__, "__FILE__");
- ADD_NAME_STR(context, ___VERSION__, "__VERSION__");
-
- ADD_NAME(context, optimize);
- ADD_NAME(context, debug);
-
- ADD_NAME(context, off);
- ADD_NAME(context, on);
-
- ADD_NAME(context, define);
- ADD_NAME(context, elif);
- ADD_NAME_STR(context, _else, "else");
- ADD_NAME(context, endif);
- ADD_NAME(context, error);
- ADD_NAME(context, extension);
- ADD_NAME_STR(context, _if, "if");
- ADD_NAME(context, ifdef);
- ADD_NAME(context, ifndef);
- ADD_NAME(context, line);
- ADD_NAME(context, pragma);
- ADD_NAME(context, undef);
-
- ADD_NAME(context, version);
-
- ADD_NAME_STR(context, _0, "0");
- ADD_NAME_STR(context, _1, "1");
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_dict.h b/mesalib/src/glsl/pp/sl_pp_dict.h
deleted file mode 100644
index 875217bd3..000000000
--- a/mesalib/src/glsl/pp/sl_pp_dict.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_DICT_H
-#define SL_PP_DICT_H
-
-
-struct sl_pp_context;
-
-struct sl_pp_dict {
- int all;
-
- int require;
- int enable;
- int warn;
- int disable;
-
- int defined;
-
- int ___LINE__;
- int ___FILE__;
- int ___VERSION__;
-
- int optimize;
- int debug;
-
- int off;
- int on;
-
- int define;
- int elif;
- int _else;
- int endif;
- int error;
- int extension;
- int _if;
- int ifdef;
- int ifndef;
- int line;
- int pragma;
- int undef;
-
- int version;
-
- int _0;
- int _1;
-};
-
-
-int
-sl_pp_dict_init(struct sl_pp_context *context);
-
-#endif /* SL_PP_DICT_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_error.c b/mesalib/src/glsl/pp/sl_pp_error.c
deleted file mode 100644
index b628e37ce..000000000
--- a/mesalib/src/glsl/pp/sl_pp_error.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_process.h"
-#include "sl_pp_public.h"
-
-
-void
-sl_pp_process_error(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- unsigned int out_len = 0;
- unsigned int i;
-
- for (i = first; i < last; i++) {
- const char *s = NULL;
- char buf[2];
-
- switch (input[i].token) {
- case SL_PP_WHITESPACE:
- s = " ";
- break;
-
- case SL_PP_NEWLINE:
- s = "\n";
- break;
-
- case SL_PP_HASH:
- s = "#";
- break;
-
- case SL_PP_COMMA:
- s = ",";
- break;
-
- case SL_PP_SEMICOLON:
- s = ";";
- break;
-
- case SL_PP_LBRACE:
- s = "{";
- break;
-
- case SL_PP_RBRACE:
- s = "}";
- break;
-
- case SL_PP_LPAREN:
- s = "(";
- break;
-
- case SL_PP_RPAREN:
- s = ")";
- break;
-
- case SL_PP_LBRACKET:
- s = "[";
- break;
-
- case SL_PP_RBRACKET:
- s = "]";
- break;
-
- case SL_PP_DOT:
- s = ".";
- break;
-
- case SL_PP_INCREMENT:
- s = "++";
- break;
-
- case SL_PP_ADDASSIGN:
- s = "+=";
- break;
-
- case SL_PP_PLUS:
- s = "+";
- break;
-
- case SL_PP_DECREMENT:
- s = "--";
- break;
-
- case SL_PP_SUBASSIGN:
- s = "-=";
- break;
-
- case SL_PP_MINUS:
- s = "-";
- break;
-
- case SL_PP_BITNOT:
- s = "~";
- break;
-
- case SL_PP_NOTEQUAL:
- s = "!=";
- break;
-
- case SL_PP_NOT:
- s = "!";
- break;
-
- case SL_PP_MULASSIGN:
- s = "*=";
- break;
-
- case SL_PP_STAR:
- s = "*";
- break;
-
- case SL_PP_DIVASSIGN:
- s = "/=";
- break;
-
- case SL_PP_SLASH:
- s = "/";
- break;
-
- case SL_PP_MODASSIGN:
- s = "%=";
- break;
-
- case SL_PP_MODULO:
- s = "%";
- break;
-
- case SL_PP_LSHIFTASSIGN:
- s = "<<=";
- break;
-
- case SL_PP_LSHIFT:
- s = "<<";
- break;
-
- case SL_PP_LESSEQUAL:
- s = "<=";
- break;
-
- case SL_PP_LESS:
- s = "<";
- break;
-
- case SL_PP_RSHIFTASSIGN:
- s = ">>=";
- break;
-
- case SL_PP_RSHIFT:
- s = ">>";
- break;
-
- case SL_PP_GREATEREQUAL:
- s = ">=";
- break;
-
- case SL_PP_GREATER:
- s = ">";
- break;
-
- case SL_PP_EQUAL:
- s = "==";
- break;
-
- case SL_PP_ASSIGN:
- s = "=";
- break;
-
- case SL_PP_AND:
- s = "&&";
- break;
-
- case SL_PP_BITANDASSIGN:
- s = "&=";
- break;
-
- case SL_PP_BITAND:
- s = "&";
- break;
-
- case SL_PP_XOR:
- s = "^^";
- break;
-
- case SL_PP_BITXORASSIGN:
- s = "^=";
- break;
-
- case SL_PP_BITXOR:
- s = "^";
- break;
-
- case SL_PP_OR:
- s = "||";
- break;
-
- case SL_PP_BITORASSIGN:
- s = "|=";
- break;
-
- case SL_PP_BITOR:
- s = "|";
- break;
-
- case SL_PP_QUESTION:
- s = "?";
- break;
-
- case SL_PP_COLON:
- s = ":";
- break;
-
- case SL_PP_IDENTIFIER:
- s = sl_pp_context_cstr(context, input[i].data.identifier);
- break;
-
- case SL_PP_UINT:
- s = sl_pp_context_cstr(context, input[i].data._uint);
- break;
-
- case SL_PP_FLOAT:
- s = sl_pp_context_cstr(context, input[i].data._float);
- break;
-
- case SL_PP_OTHER:
- buf[0] = input[i].data.other;
- buf[1] = '\0';
- s = buf;
- break;
-
- default:
- strcpy(context->error_msg, "internal error");
- return;
- }
-
- while (*s != '\0' && out_len < sizeof(context->error_msg) - 1) {
- context->error_msg[out_len++] = *s++;
- }
- }
-
- context->error_msg[out_len] = '\0';
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_expression.c b/mesalib/src/glsl/pp/sl_pp_expression.c
deleted file mode 100644
index ec904787d..000000000
--- a/mesalib/src/glsl/pp/sl_pp_expression.c
+++ /dev/null
@@ -1,411 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_expression.h"
-#include "sl_pp_public.h"
-
-
-struct parse_context {
- struct sl_pp_context *context;
- const struct sl_pp_token_info *input;
-};
-
-static int
-_parse_or(struct parse_context *ctx,
- int *result);
-
-static int
-_parse_primary(struct parse_context *ctx,
- int *result)
-{
- if (ctx->input->token == SL_PP_UINT) {
- *result = atoi(sl_pp_context_cstr(ctx->context, ctx->input->data._uint));
- ctx->input++;
- } else {
- if (ctx->input->token != SL_PP_LPAREN) {
- strcpy(ctx->context->error_msg, "expected `('");
- return -1;
- }
- ctx->input++;
- if (_parse_or(ctx, result)) {
- return -1;
- }
- if (ctx->input->token != SL_PP_RPAREN) {
- strcpy(ctx->context->error_msg, "expected `)'");
- return -1;
- }
- ctx->input++;
- }
- return 0;
-}
-
-static int
-_parse_unary(struct parse_context *ctx,
- int *result)
-{
- if (!_parse_primary(ctx, result)) {
- return 0;
- }
-
- switch (ctx->input->token) {
- case SL_PP_PLUS:
- ctx->input++;
- if (_parse_unary(ctx, result)) {
- return -1;
- }
- *result = +*result;
- break;
-
- case SL_PP_MINUS:
- ctx->input++;
- if (_parse_unary(ctx, result)) {
- return -1;
- }
- *result = -*result;
- break;
-
- case SL_PP_NOT:
- ctx->input++;
- if (_parse_unary(ctx, result)) {
- return -1;
- }
- *result = !*result;
- break;
-
- case SL_PP_BITNOT:
- ctx->input++;
- if (_parse_unary(ctx, result)) {
- return -1;
- }
- *result = ~*result;
- break;
-
- default:
- return -1;
- }
-
- return 0;
-}
-
-static int
-_parse_multiplicative(struct parse_context *ctx,
- int *result)
-{
- if (_parse_unary(ctx, result)) {
- return -1;
- }
- for (;;) {
- int right;
-
- switch (ctx->input->token) {
- case SL_PP_STAR:
- ctx->input++;
- if (_parse_unary(ctx, &right)) {
- return -1;
- }
- *result = *result * right;
- break;
-
- case SL_PP_SLASH:
- ctx->input++;
- if (_parse_unary(ctx, &right)) {
- return -1;
- }
- *result = *result / right;
- break;
-
- case SL_PP_MODULO:
- ctx->input++;
- if (_parse_unary(ctx, &right)) {
- return -1;
- }
- *result = *result % right;
- break;
-
- default:
- return 0;
- }
- }
-}
-
-static int
-_parse_additive(struct parse_context *ctx,
- int *result)
-{
- if (_parse_multiplicative(ctx, result)) {
- return -1;
- }
- for (;;) {
- int right;
-
- switch (ctx->input->token) {
- case SL_PP_PLUS:
- ctx->input++;
- if (_parse_multiplicative(ctx, &right)) {
- return -1;
- }
- *result = *result + right;
- break;
-
- case SL_PP_MINUS:
- ctx->input++;
- if (_parse_multiplicative(ctx, &right)) {
- return -1;
- }
- *result = *result - right;
- break;
-
- default:
- return 0;
- }
- }
-}
-
-static int
-_parse_shift(struct parse_context *ctx,
- int *result)
-{
- if (_parse_additive(ctx, result)) {
- return -1;
- }
- for (;;) {
- int right;
-
- switch (ctx->input->token) {
- case SL_PP_LSHIFT:
- ctx->input++;
- if (_parse_additive(ctx, &right)) {
- return -1;
- }
- *result = *result << right;
- break;
-
- case SL_PP_RSHIFT:
- ctx->input++;
- if (_parse_additive(ctx, &right)) {
- return -1;
- }
- *result = *result >> right;
- break;
-
- default:
- return 0;
- }
- }
-}
-
-static int
-_parse_relational(struct parse_context *ctx,
- int *result)
-{
- if (_parse_shift(ctx, result)) {
- return -1;
- }
- for (;;) {
- int right;
-
- switch (ctx->input->token) {
- case SL_PP_LESSEQUAL:
- ctx->input++;
- if (_parse_shift(ctx, &right)) {
- return -1;
- }
- *result = *result <= right;
- break;
-
- case SL_PP_GREATEREQUAL:
- ctx->input++;
- if (_parse_shift(ctx, &right)) {
- return -1;
- }
- *result = *result >= right;
- break;
-
- case SL_PP_LESS:
- ctx->input++;
- if (_parse_shift(ctx, &right)) {
- return -1;
- }
- *result = *result < right;
- break;
-
- case SL_PP_GREATER:
- ctx->input++;
- if (_parse_shift(ctx, &right)) {
- return -1;
- }
- *result = *result > right;
- break;
-
- default:
- return 0;
- }
- }
-}
-
-static int
-_parse_equality(struct parse_context *ctx,
- int *result)
-{
- if (_parse_relational(ctx, result)) {
- return -1;
- }
- for (;;) {
- int right;
-
- switch (ctx->input->token) {
- case SL_PP_EQUAL:
- ctx->input++;
- if (_parse_relational(ctx, &right)) {
- return -1;
- }
- *result = *result == right;
- break;
-
- case SL_PP_NOTEQUAL:
- ctx->input++;
- if (_parse_relational(ctx, &right)) {
- return -1;
- }
- *result = *result != right;
- break;
-
- default:
- return 0;
- }
- }
-}
-
-static int
-_parse_bitand(struct parse_context *ctx,
- int *result)
-{
- if (_parse_equality(ctx, result)) {
- return -1;
- }
- while (ctx->input->token == SL_PP_BITAND) {
- int right;
-
- ctx->input++;
- if (_parse_equality(ctx, &right)) {
- return -1;
- }
- *result = *result & right;
- }
- return 0;
-}
-
-static int
-_parse_xor(struct parse_context *ctx,
- int *result)
-{
- if (_parse_bitand(ctx, result)) {
- return -1;
- }
- while (ctx->input->token == SL_PP_XOR) {
- int right;
-
- ctx->input++;
- if (_parse_bitand(ctx, &right)) {
- return -1;
- }
- *result = *result ^ right;
- }
- return 0;
-}
-
-static int
-_parse_bitor(struct parse_context *ctx,
- int *result)
-{
- if (_parse_xor(ctx, result)) {
- return -1;
- }
- while (ctx->input->token == SL_PP_BITOR) {
- int right;
-
- ctx->input++;
- if (_parse_xor(ctx, &right)) {
- return -1;
- }
- *result = *result | right;
- }
- return 0;
-}
-
-static int
-_parse_and(struct parse_context *ctx,
- int *result)
-{
- if (_parse_bitor(ctx, result)) {
- return -1;
- }
- while (ctx->input->token == SL_PP_AND) {
- int right;
-
- ctx->input++;
- if (_parse_bitor(ctx, &right)) {
- return -1;
- }
- *result = *result && right;
- }
- return 0;
-}
-
-static int
-_parse_or(struct parse_context *ctx,
- int *result)
-{
- if (_parse_and(ctx, result)) {
- return -1;
- }
- while (ctx->input->token == SL_PP_OR) {
- int right;
-
- ctx->input++;
- if (_parse_and(ctx, &right)) {
- return -1;
- }
- *result = *result || right;
- }
- return 0;
-}
-
-int
-sl_pp_execute_expression(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- int *result)
-{
- struct parse_context ctx;
-
- ctx.context = context;
- ctx.input = input;
-
- return _parse_or(&ctx, result);
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_expression.h b/mesalib/src/glsl/pp/sl_pp_expression.h
deleted file mode 100644
index 377d5b4cb..000000000
--- a/mesalib/src/glsl/pp/sl_pp_expression.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_EXPRESSION_H
-#define SL_PP_EXPRESSION_H
-
-#include "sl_pp_context.h"
-#include "sl_pp_token.h"
-
-
-int
-sl_pp_execute_expression(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- int *result);
-
-#endif /* SL_PP_EXPRESSION_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_extension.c b/mesalib/src/glsl/pp/sl_pp_extension.c
deleted file mode 100644
index d119677c2..000000000
--- a/mesalib/src/glsl/pp/sl_pp_extension.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_process.h"
-#include "sl_pp_public.h"
-
-
-/**
- * Declare an extension to the preprocessor. This tells the preprocessor
- * which extensions are supported by Mesa.
- * The shader still needs to have a "#extension name: behavior" line to enable
- * the extension.
- */
-int
-sl_pp_context_add_extension(struct sl_pp_context *context,
- const char *name)
-{
- struct sl_pp_extension ext;
-
- if (context->num_extensions == SL_PP_MAX_EXTENSIONS) {
- return -1;
- }
-
- ext.name = sl_pp_context_add_unique_str(context, name);
- if (ext.name == -1) {
- return -1;
- }
-
- context->extensions[context->num_extensions++] = ext;
-
- assert(context->num_extensions <= sizeof(context->extensions));
-
- return 0;
-}
-
-
-/**
- * Process a "#extension name: behavior" directive.
- */
-int
-sl_pp_process_extension(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last,
- struct sl_pp_process_state *state)
-{
- int extension_name = -1;
- int behavior = -1;
- struct sl_pp_token_info out;
-
- /* Grab the extension name. */
- if (first < last && input[first].token == SL_PP_IDENTIFIER) {
- extension_name = input[first].data.identifier;
- first++;
- }
- if (extension_name == -1) {
- strcpy(context->error_msg, "expected identifier after `#extension'");
- return -1;
- }
-
- /* Make sure the extension is supported. */
- if (extension_name == context->dict.all) {
- out.data.extension = extension_name;
- } else {
- unsigned int i;
-
- out.data.extension = -1;
- for (i = 0; i < context->num_extensions; i++) {
- if (extension_name == context->extensions[i].name) {
- out.data.extension = extension_name;
- break;
- }
- }
- }
-
- /* Grab the colon separating the extension name and behavior. */
- while (first < last && input[first].token == SL_PP_WHITESPACE) {
- first++;
- }
- if (first < last && input[first].token == SL_PP_COLON) {
- first++;
- } else {
- strcpy(context->error_msg, "expected `:' after extension name");
- return -1;
- }
- while (first < last && input[first].token == SL_PP_WHITESPACE) {
- first++;
- }
-
- /* Grab the behavior name. */
- if (first < last && input[first].token == SL_PP_IDENTIFIER) {
- behavior = input[first].data.identifier;
- first++;
- }
- if (behavior == -1) {
- strcpy(context->error_msg, "expected identifier after `:'");
- return -1;
- }
-
- if (behavior == context->dict.require) {
- if (out.data.extension == -1) {
- strcpy(context->error_msg, "the required extension is not supported");
- return -1;
- }
- if (out.data.extension == context->dict.all) {
- strcpy(context->error_msg, "invalid behavior for `all' extension: `require'");
- return -1;
- }
- out.token = SL_PP_EXTENSION_REQUIRE;
- } else if (behavior == context->dict.enable) {
- if (out.data.extension == -1) {
- /* Warning: the extension cannot be enabled. */
- return 0;
- }
- if (out.data.extension == context->dict.all) {
- strcpy(context->error_msg, "invalid behavior for `all' extension: `enable'");
- return -1;
- }
- out.token = SL_PP_EXTENSION_ENABLE;
- } else if (behavior == context->dict.warn) {
- if (out.data.extension == -1) {
- /* Warning: the extension is not supported. */
- return 0;
- }
- out.token = SL_PP_EXTENSION_WARN;
- } else if (behavior == context->dict.disable) {
- if (out.data.extension == -1) {
- /* Warning: the extension is not supported. */
- return 0;
- }
- out.token = SL_PP_EXTENSION_DISABLE;
- } else {
- strcpy(context->error_msg, "unrecognised behavior name");
- return -1;
- }
-
- /* Grab the end of line. */
- while (first < last && input[first].token == SL_PP_WHITESPACE) {
- first++;
- }
- if (first < last) {
- strcpy(context->error_msg, "expected end of line after behavior name");
- return -1;
- }
-
- if (sl_pp_process_out(state, &out)) {
- return -1;
- }
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_if.c b/mesalib/src/glsl/pp/sl_pp_if.c
deleted file mode 100644
index 25cb7a3ca..000000000
--- a/mesalib/src/glsl/pp/sl_pp_if.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_expression.h"
-#include "sl_pp_process.h"
-
-
-static int
-_macro_is_defined(struct sl_pp_context *context,
- int macro_name)
-{
- unsigned int i;
- struct sl_pp_macro *macro;
-
- for (i = 0; i < context->num_extensions; i++) {
- if (macro_name == context->extensions[i].name) {
- return 1;
- }
- }
-
- for (macro = context->macro; macro; macro = macro->next) {
- if (macro_name == macro->name) {
- return 1;
- }
- }
-
- return 0;
-}
-
-static int
-_parse_defined(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer,
- struct sl_pp_process_state *state)
-{
- struct sl_pp_token_info input;
- int parens = 0;
- int defined;
- struct sl_pp_token_info result;
-
- if (sl_pp_token_buffer_skip_white(buffer, &input)) {
- return -1;
- }
-
- if (input.token == SL_PP_LPAREN) {
- if (sl_pp_token_buffer_skip_white(buffer, &input)) {
- return -1;
- }
- parens = 1;
- }
-
- if (input.token != SL_PP_IDENTIFIER) {
- strcpy(context->error_msg, "expected an identifier");
- return -1;
- }
-
- defined = _macro_is_defined(context, input.data.identifier);
-
- if (parens) {
- if (sl_pp_token_buffer_skip_white(buffer, &input)) {
- return -1;
- }
- if (input.token != SL_PP_RPAREN) {
- strcpy(context->error_msg, "expected `)'");
- return -1;
- }
- }
-
- result.token = SL_PP_UINT;
- result.data._uint = (defined ? context->dict._1 : context->dict._0);
-
- if (sl_pp_process_out(state, &result)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- return 0;
-}
-
-static unsigned int
-_evaluate_if_stack(struct sl_pp_context *context)
-{
- unsigned int i;
-
- for (i = context->if_ptr; i < SL_PP_MAX_IF_NESTING; i++) {
- if (!context->if_stack[i].u.condition) {
- return 0;
- }
- }
- return 1;
-}
-
-static int
-_parse_if(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer)
-{
- struct sl_pp_process_state state;
- int found_end = 0;
- struct sl_pp_token_info eof;
- int result;
-
- if (!context->if_ptr) {
- strcpy(context->error_msg, "`#if' nesting too deep");
- return -1;
- }
-
- memset(&state, 0, sizeof(state));
- while (!found_end) {
- struct sl_pp_token_info input;
-
- sl_pp_token_buffer_get(buffer, &input);
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_IDENTIFIER:
- if (input.data.identifier == context->dict.defined) {
- if (_parse_defined(context, buffer, &state)) {
- free(state.out);
- return -1;
- }
- } else {
- sl_pp_token_buffer_unget(buffer, &input);
- if (sl_pp_macro_expand(context, buffer, NULL, &state, sl_pp_macro_expand_unknown_to_0)) {
- free(state.out);
- return -1;
- }
- }
- break;
-
- case SL_PP_NEWLINE:
- case SL_PP_EOF:
- found_end = 1;
- break;
-
- default:
- if (sl_pp_process_out(&state, &input)) {
- strcpy(context->error_msg, "out of memory");
- free(state.out);
- return -1;
- }
- }
- }
-
- eof.token = SL_PP_EOF;
- if (sl_pp_process_out(&state, &eof)) {
- strcpy(context->error_msg, "out of memory");
- free(state.out);
- return -1;
- }
-
- if (sl_pp_execute_expression(context, state.out, &result)) {
- free(state.out);
- return -1;
- }
-
- free(state.out);
-
- context->if_ptr--;
- context->if_stack[context->if_ptr].value = 0;
- context->if_stack[context->if_ptr].u.condition = result ? 1 : 0;
- context->if_value = _evaluate_if_stack(context);
-
- return 0;
-}
-
-static int
-_parse_else(struct sl_pp_context *context)
-{
- union sl_pp_if_state *state = &context->if_stack[context->if_ptr];
-
- if (context->if_ptr == SL_PP_MAX_IF_NESTING) {
- strcpy(context->error_msg, "no matching `#if'");
- return -1;
- }
-
- if (state->u.went_thru_else) {
- strcpy(context->error_msg, "no matching `#if'");
- return -1;
- }
-
- /* Once we had a true condition, the subsequent #elifs should always be false. */
- state->u.had_true_cond |= state->u.condition;
-
- /* Update current condition value and mark that we are in the #else block. */
- state->u.condition = !(state->u.had_true_cond | state->u.condition);
- state->u.went_thru_else = 1;
- context->if_value = _evaluate_if_stack(context);
-
- return 0;
-}
-
-int
-sl_pp_process_if(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer)
-{
- return _parse_if(context, buffer);
-}
-
-int
-sl_pp_process_ifdef(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- unsigned int i;
-
- if (!context->if_ptr) {
- strcpy(context->error_msg, "`#if' nesting too deep");
- return -1;
- }
-
- for (i = first; i < last; i++) {
- switch (input[i].token) {
- case SL_PP_IDENTIFIER:
- context->if_ptr--;
- context->if_stack[context->if_ptr].value = 0;
- context->if_stack[context->if_ptr].u.condition = _macro_is_defined(context, input[i].data.identifier);
- context->if_value = _evaluate_if_stack(context);
- return 0;
-
- case SL_PP_WHITESPACE:
- break;
-
- default:
- strcpy(context->error_msg, "expected an identifier");
- return -1;
- }
- }
-
- strcpy(context->error_msg, "expected an identifier");
- return -1;
-}
-
-int
-sl_pp_process_ifndef(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- unsigned int i;
-
- if (!context->if_ptr) {
- strcpy(context->error_msg, "`#if' nesting too deep");
- return -1;
- }
-
- for (i = first; i < last; i++) {
- switch (input[i].token) {
- case SL_PP_IDENTIFIER:
- context->if_ptr--;
- context->if_stack[context->if_ptr].value = 0;
- context->if_stack[context->if_ptr].u.condition = !_macro_is_defined(context, input[i].data.identifier);
- context->if_value = _evaluate_if_stack(context);
- return 0;
-
- case SL_PP_WHITESPACE:
- break;
-
- default:
- strcpy(context->error_msg, "expected an identifier");
- return -1;
- }
- }
-
- strcpy(context->error_msg, "expected an identifier");
- return -1;
-}
-
-int
-sl_pp_process_elif(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer)
-{
- if (_parse_else(context)) {
- return -1;
- }
-
- if (context->if_stack[context->if_ptr].u.condition) {
- context->if_ptr++;
- if (_parse_if(context, buffer)) {
- return -1;
- }
- }
-
- /* We are still in the #if block. */
- context->if_stack[context->if_ptr].u.went_thru_else = 0;
-
- return 0;
-}
-
-int
-sl_pp_process_else(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- return _parse_else(context);
-}
-
-int
-sl_pp_process_endif(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last)
-{
- if (context->if_ptr == SL_PP_MAX_IF_NESTING) {
- strcpy(context->error_msg, "no matching `#if'");
- return -1;
- }
-
- context->if_ptr++;
- context->if_value = _evaluate_if_stack(context);
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_line.c b/mesalib/src/glsl/pp/sl_pp_line.c
deleted file mode 100644
index 6f7e9eb56..000000000
--- a/mesalib/src/glsl/pp/sl_pp_line.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_public.h"
-#include "sl_pp_process.h"
-
-
-int
-sl_pp_process_line(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer,
- struct sl_pp_process_state *pstate)
-{
- struct sl_pp_process_state state;
- int found_end = 0;
- int line_number = -1;
- int file_number = -1;
- unsigned int line;
- unsigned int file;
-
- memset(&state, 0, sizeof(state));
- while (!found_end) {
- struct sl_pp_token_info input;
-
- sl_pp_token_buffer_get(buffer, &input);
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_IDENTIFIER:
- sl_pp_token_buffer_unget(buffer, &input);
- if (sl_pp_macro_expand(context, buffer, NULL, &state, sl_pp_macro_expand_normal)) {
- free(state.out);
- return -1;
- }
- break;
-
- case SL_PP_NEWLINE:
- case SL_PP_EOF:
- found_end = 1;
- break;
-
- default:
- if (sl_pp_process_out(&state, &input)) {
- strcpy(context->error_msg, "out of memory");
- free(state.out);
- return -1;
- }
- }
- }
-
- if (state.out_len > 0 && state.out[0].token == SL_PP_UINT) {
- line_number = state.out[0].data._uint;
- } else {
- strcpy(context->error_msg, "expected a number after `#line'");
- free(state.out);
- return -1;
- }
-
- if (state.out_len > 1) {
- if (state.out[1].token == SL_PP_UINT) {
- file_number = state.out[1].data._uint;
- } else {
- strcpy(context->error_msg, "expected a number after line number");
- free(state.out);
- return -1;
- }
-
- if (state.out_len > 2) {
- strcpy(context->error_msg, "expected an end of line after file number");
- free(state.out);
- return -1;
- }
- }
-
- free(state.out);
-
- line = atoi(sl_pp_context_cstr(context, line_number));
- if (file_number != -1) {
- file = atoi(sl_pp_context_cstr(context, file_number));
- } else {
- file = context->file;
- }
-
- if (context->line != line || context->file != file) {
- struct sl_pp_token_info ti;
-
- ti.token = SL_PP_LINE;
- ti.data.line.lineno = line;
- ti.data.line.fileno = file;
- if (sl_pp_process_out(pstate, &ti)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- context->line = line;
- context->file = file;
- }
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_macro.c b/mesalib/src/glsl/pp/sl_pp_macro.c
deleted file mode 100644
index 9f520b8fc..000000000
--- a/mesalib/src/glsl/pp/sl_pp_macro.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_public.h"
-#include "sl_pp_macro.h"
-#include "sl_pp_process.h"
-
-
-static void
-_macro_init(struct sl_pp_macro *macro)
-{
- macro->name = -1;
- macro->num_args = -1;
- macro->arg = NULL;
- macro->body = NULL;
-}
-
-struct sl_pp_macro *
-sl_pp_macro_new(void)
-{
- struct sl_pp_macro *macro;
-
- macro = calloc(1, sizeof(struct sl_pp_macro));
- if (macro) {
- _macro_init(macro);
- }
- return macro;
-}
-
-static void
-_macro_destroy(struct sl_pp_macro *macro)
-{
- struct sl_pp_macro_formal_arg *arg = macro->arg;
-
- while (arg) {
- struct sl_pp_macro_formal_arg *next_arg = arg->next;
-
- free(arg);
- arg = next_arg;
- }
-
- free(macro->body);
-}
-
-void
-sl_pp_macro_free(struct sl_pp_macro *macro)
-{
- while (macro) {
- struct sl_pp_macro *next_macro = macro->next;
-
- _macro_destroy(macro);
- free(macro);
- macro = next_macro;
- }
-}
-
-void
-sl_pp_macro_reset(struct sl_pp_macro *macro)
-{
- _macro_destroy(macro);
- _macro_init(macro);
-}
-
-static int
-_out_number(struct sl_pp_context *context,
- struct sl_pp_process_state *state,
- unsigned int number)
-{
- char buf[32];
- struct sl_pp_token_info ti;
-
- sprintf(buf, "%u", number);
-
- ti.token = SL_PP_UINT;
- ti.data._uint = sl_pp_context_add_unique_str(context, buf);
- if (sl_pp_process_out(state, &ti)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- return 0;
-}
-
-int
-sl_pp_macro_expand(struct sl_pp_context *context,
- struct sl_pp_token_buffer *tokens,
- struct sl_pp_macro *local,
- struct sl_pp_process_state *state,
- enum sl_pp_macro_expand_behaviour behaviour)
-{
- int mute = (behaviour == sl_pp_macro_expand_mute);
- struct sl_pp_token_info input;
- int macro_name;
- struct sl_pp_macro *macro = NULL;
- struct sl_pp_macro *actual_arg = NULL;
- unsigned int j;
-
- if (sl_pp_token_buffer_get(tokens, &input)) {
- return -1;
- }
-
- if (input.token != SL_PP_IDENTIFIER) {
- strcpy(context->error_msg, "expected an identifier");
- return -1;
- }
-
- macro_name = input.data.identifier;
-
- /* First look for predefined macros.
- */
-
- if (macro_name == context->dict.___LINE__) {
- if (!mute && _out_number(context, state, context->line)) {
- return -1;
- }
- return 0;
- }
- if (macro_name == context->dict.___FILE__) {
- if (!mute && _out_number(context, state, context->file)) {
- return -1;
- }
- return 0;
- }
- if (macro_name == context->dict.___VERSION__) {
- if (!mute && _out_number(context, state, 110)) {
- return -1;
- }
- return 0;
- }
-
- for (j = 0; j < context->num_predefined; j++) {
- if (macro_name == context->predefined[j].name) {
- if (!mute) {
- struct sl_pp_token_info ti;
-
- ti.token = SL_PP_UINT;
- ti.data._uint = context->predefined[j].value;
- if (sl_pp_process_out(state, &ti)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- }
- return 0;
- }
- }
-
- /* Replace extension names with 1.
- */
- for (j = 0; j < context->num_extensions; j++) {
- if (macro_name == context->extensions[j].name) {
- if (!mute && _out_number(context, state, 1)) {
- return -1;
- }
- return 0;
- }
- }
-
- if (local) {
- for (macro = local; macro; macro = macro->next) {
- if (macro->name == macro_name) {
- break;
- }
- }
- }
-
- if (!macro) {
- for (macro = context->macro; macro; macro = macro->next) {
- if (macro->name == macro_name) {
- break;
- }
- }
- }
-
- if (!macro) {
- if (behaviour == sl_pp_macro_expand_unknown_to_0) {
- if (_out_number(context, state, 0)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- } else if (!mute) {
- if (sl_pp_process_out(state, &input)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- }
- return 0;
- }
-
- if (macro->num_args >= 0) {
- if (sl_pp_token_buffer_skip_white(tokens, &input)) {
- return -1;
- }
- if (input.token != SL_PP_LPAREN) {
- strcpy(context->error_msg, "expected `('");
- return -1;
- }
- if (sl_pp_token_buffer_skip_white(tokens, &input)) {
- return -1;
- }
- sl_pp_token_buffer_unget(tokens, &input);
- }
-
- if (macro->num_args > 0) {
- struct sl_pp_macro_formal_arg *formal_arg = macro->arg;
- struct sl_pp_macro **pmacro = &actual_arg;
-
- for (j = 0; j < (unsigned int)macro->num_args; j++) {
- struct sl_pp_process_state arg_state;
- int done = 0;
- unsigned int paren_nesting = 0;
- struct sl_pp_token_info eof;
-
- memset(&arg_state, 0, sizeof(arg_state));
-
- while (!done) {
- if (sl_pp_token_buffer_get(tokens, &input)) {
- goto fail_arg;
- }
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_COMMA:
- if (!paren_nesting) {
- if (j < (unsigned int)macro->num_args - 1) {
- done = 1;
- } else {
- strcpy(context->error_msg, "too many actual macro arguments");
- goto fail_arg;
- }
- } else {
- if (sl_pp_process_out(&arg_state, &input)) {
- strcpy(context->error_msg, "out of memory");
- goto fail_arg;
- }
- }
- break;
-
- case SL_PP_LPAREN:
- paren_nesting++;
- if (sl_pp_process_out(&arg_state, &input)) {
- goto oom_arg;
- }
- break;
-
- case SL_PP_RPAREN:
- if (!paren_nesting) {
- if (j == (unsigned int)macro->num_args - 1) {
- done = 1;
- } else {
- strcpy(context->error_msg, "too few actual macro arguments");
- goto fail_arg;
- }
- } else {
- paren_nesting--;
- if (sl_pp_process_out(&arg_state, &input)) {
- goto oom_arg;
- }
- }
- break;
-
- case SL_PP_IDENTIFIER:
- sl_pp_token_buffer_unget(tokens, &input);
- if (sl_pp_macro_expand(context, tokens, local, &arg_state, sl_pp_macro_expand_normal)) {
- goto fail_arg;
- }
- break;
-
- case SL_PP_EOF:
- strcpy(context->error_msg, "too few actual macro arguments");
- goto fail_arg;
-
- default:
- if (sl_pp_process_out(&arg_state, &input)) {
- goto oom_arg;
- }
- }
- }
-
- eof.token = SL_PP_EOF;
- if (sl_pp_process_out(&arg_state, &eof)) {
- goto oom_arg;
- }
-
- *pmacro = sl_pp_macro_new();
- if (!*pmacro) {
- goto oom_arg;
- }
-
- (**pmacro).name = formal_arg->name;
- (**pmacro).body = arg_state.out;
-
- formal_arg = formal_arg->next;
- pmacro = &(**pmacro).next;
-
- continue;
-
-oom_arg:
- strcpy(context->error_msg, "out of memory");
-fail_arg:
- free(arg_state.out);
- goto fail;
- }
- }
-
- /* Right paren for non-empty argument list has already been eaten. */
- if (macro->num_args == 0) {
- if (sl_pp_token_buffer_skip_white(tokens, &input)) {
- goto fail;
- }
- if (input.token != SL_PP_RPAREN) {
- strcpy(context->error_msg, "expected `)'");
- goto fail;
- }
- }
-
- /* XXX: This is all wrong, we should be ungetting all tokens
- * back to the main token buffer.
- */
- {
- struct sl_pp_token_buffer buffer;
-
- /* Seek to the end.
- */
- for (j = 0; macro->body[j].token != SL_PP_EOF; j++) {
- }
- j++;
-
- /* Create a context-less token buffer since we are not going to underrun
- * its internal buffer.
- */
- if (sl_pp_token_buffer_init(&buffer, NULL)) {
- strcpy(context->error_msg, "out of memory");
- goto fail;
- }
-
- /* Unget the tokens in reverse order so later they will be fetched correctly.
- */
- for (; j > 0; j--) {
- sl_pp_token_buffer_unget(&buffer, &macro->body[j - 1]);
- }
-
- /* Expand.
- */
- for (;;) {
- struct sl_pp_token_info input;
-
- sl_pp_token_buffer_get(&buffer, &input);
- switch (input.token) {
- case SL_PP_NEWLINE:
- if (sl_pp_process_out(state, &input)) {
- strcpy(context->error_msg, "out of memory");
- sl_pp_token_buffer_destroy(&buffer);
- goto fail;
- }
- break;
-
- case SL_PP_IDENTIFIER:
- sl_pp_token_buffer_unget(&buffer, &input);
- if (sl_pp_macro_expand(context, &buffer, actual_arg, state, behaviour)) {
- sl_pp_token_buffer_destroy(&buffer);
- goto fail;
- }
- break;
-
- case SL_PP_EOF:
- sl_pp_token_buffer_destroy(&buffer);
- sl_pp_macro_free(actual_arg);
- return 0;
-
- default:
- if (!mute) {
- if (sl_pp_process_out(state, &input)) {
- strcpy(context->error_msg, "out of memory");
- sl_pp_token_buffer_destroy(&buffer);
- goto fail;
- }
- }
- }
- }
- }
-
-fail:
- sl_pp_macro_free(actual_arg);
- return -1;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_macro.h b/mesalib/src/glsl/pp/sl_pp_macro.h
deleted file mode 100644
index 1d2106810..000000000
--- a/mesalib/src/glsl/pp/sl_pp_macro.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_MACRO_H
-#define SL_PP_MACRO_H
-
-#include "sl_pp_token.h"
-
-
-struct sl_pp_context;
-struct sl_pp_process_state;
-struct sl_pp_token_buffer;
-
-struct sl_pp_macro_formal_arg {
- int name;
- struct sl_pp_macro_formal_arg *next;
-};
-
-struct sl_pp_macro {
- int name;
- int num_args; /* -1 means no args, 0 means `()' */
- struct sl_pp_macro_formal_arg *arg;
- struct sl_pp_token_info *body;
- struct sl_pp_macro *next;
-};
-
-struct sl_pp_macro *
-sl_pp_macro_new(void);
-
-void
-sl_pp_macro_free(struct sl_pp_macro *macro);
-
-void
-sl_pp_macro_reset(struct sl_pp_macro *macro);
-
-enum sl_pp_macro_expand_behaviour {
- sl_pp_macro_expand_normal,
- sl_pp_macro_expand_mute,
- sl_pp_macro_expand_unknown_to_0
-};
-
-int
-sl_pp_macro_expand(struct sl_pp_context *context,
- struct sl_pp_token_buffer *tokens,
- struct sl_pp_macro *local,
- struct sl_pp_process_state *state,
- enum sl_pp_macro_expand_behaviour behaviour);
-
-#endif /* SL_PP_MACRO_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_pragma.c b/mesalib/src/glsl/pp/sl_pp_pragma.c
deleted file mode 100644
index caf4c63f6..000000000
--- a/mesalib/src/glsl/pp/sl_pp_pragma.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_process.h"
-
-
-int
-sl_pp_process_pragma(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last,
- struct sl_pp_process_state *state)
-{
- int pragma_name = -1;
- struct sl_pp_token_info out;
- int arg_name = -1;
-
- if (first < last && input[first].token == SL_PP_IDENTIFIER) {
- pragma_name = input[first].data.identifier;
- first++;
- }
- if (pragma_name == -1) {
- return 0;
- }
-
- if (pragma_name == context->dict.optimize) {
- out.token = SL_PP_PRAGMA_OPTIMIZE;
- } else if (pragma_name == context->dict.debug) {
- out.token = SL_PP_PRAGMA_DEBUG;
- } else {
- return 0;
- }
-
- while (first < last && input[first].token == SL_PP_WHITESPACE) {
- first++;
- }
-
- if (first < last && input[first].token == SL_PP_LPAREN) {
- first++;
- } else {
- return 0;
- }
-
- while (first < last && input[first].token == SL_PP_WHITESPACE) {
- first++;
- }
-
- if (first < last && input[first].token == SL_PP_IDENTIFIER) {
- arg_name = input[first].data.identifier;
- first++;
- }
- if (arg_name == -1) {
- return 0;
- }
-
- if (arg_name == context->dict.off) {
- out.data.pragma = 0;
- } else if (arg_name == context->dict.on) {
- out.data.pragma = 1;
- } else {
- return 0;
- }
-
- while (first < last && input[first].token == SL_PP_WHITESPACE) {
- first++;
- }
-
- if (first < last && input[first].token == SL_PP_RPAREN) {
- first++;
- } else {
- return 0;
- }
-
- /* Ignore the tokens that follow. */
-
- if (sl_pp_process_out(state, &out)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_process.c b/mesalib/src/glsl/pp/sl_pp_process.c
deleted file mode 100644
index 315ad9bf1..000000000
--- a/mesalib/src/glsl/pp/sl_pp_process.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_context.h"
-#include "sl_pp_process.h"
-#include "sl_pp_public.h"
-
-
-int
-sl_pp_process_out(struct sl_pp_process_state *state,
- const struct sl_pp_token_info *token)
-{
- if (state->out_len >= state->out_max) {
- unsigned int new_max = state->out_max;
-
- if (new_max < 0x100) {
- new_max = 0x100;
- } else if (new_max < 0x10000) {
- new_max *= 2;
- } else {
- new_max += 0x10000;
- }
-
- state->out = realloc(state->out, new_max * sizeof(struct sl_pp_token_info));
- if (!state->out) {
- return -1;
- }
- state->out_max = new_max;
- }
-
- state->out[state->out_len++] = *token;
- return 0;
-}
-
-int
-sl_pp_process_get(struct sl_pp_context *context,
- struct sl_pp_token_info *output)
-{
- if (!context->process_state.out) {
- if (context->line > 1) {
- struct sl_pp_token_info ti;
-
- ti.token = SL_PP_LINE;
- ti.data.line.lineno = context->line - 1;
- ti.data.line.fileno = context->file;
- if (sl_pp_process_out(&context->process_state, &ti)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
-
- ti.token = SL_PP_NEWLINE;
- if (sl_pp_process_out(&context->process_state, &ti)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- }
- }
-
- for (;;) {
- struct sl_pp_token_info input;
- int found_eof = 0;
-
- if (context->process_state.out_len) {
- assert(context->process_state.out);
- *output = context->process_state.out[0];
-
- if (context->process_state.out_len > 1) {
- unsigned int i;
-
- for (i = 1; i < context->process_state.out_len; i++) {
- context->process_state.out[i - 1] = context->process_state.out[i];
- }
- }
- context->process_state.out_len--;
-
- return 0;
- }
-
- if (sl_pp_token_buffer_skip_white(&context->tokens, &input)) {
- return -1;
- }
- if (input.token == SL_PP_HASH) {
- if (sl_pp_token_buffer_skip_white(&context->tokens, &input)) {
- return -1;
- }
- switch (input.token) {
- case SL_PP_IDENTIFIER:
- {
- int name;
- int found_eol = 0;
- struct sl_pp_token_info endof;
- struct sl_pp_token_peek peek;
- int result = 0;
-
- /* Directive name. */
- name = input.data.identifier;
-
- if (sl_pp_token_buffer_skip_white(&context->tokens, &input)) {
- return -1;
- }
- sl_pp_token_buffer_unget(&context->tokens, &input);
-
- if (sl_pp_token_peek_init(&peek, &context->tokens)) {
- return -1;
- }
-
- while (!found_eol) {
- if (sl_pp_token_peek_get(&peek, &input)) {
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
- switch (input.token) {
- case SL_PP_NEWLINE:
- /* Preserve newline just for the sake of line numbering. */
- endof = input;
- found_eol = 1;
- break;
-
- case SL_PP_EOF:
- endof = input;
- found_eof = 1;
- found_eol = 1;
- break;
-
- default:
- break;
- }
- }
-
- if (name == context->dict._if) {
- struct sl_pp_token_buffer buffer;
-
- result = sl_pp_token_peek_to_buffer(&peek, &buffer);
- if (result == 0) {
- result = sl_pp_process_if(context, &buffer);
- sl_pp_token_buffer_destroy(&buffer);
- }
- } else if (name == context->dict.ifdef) {
- result = sl_pp_process_ifdef(context, peek.tokens, 0, peek.size - 1);
- } else if (name == context->dict.ifndef) {
- result = sl_pp_process_ifndef(context, peek.tokens, 0, peek.size - 1);
- } else if (name == context->dict.elif) {
- struct sl_pp_token_buffer buffer;
-
- result = sl_pp_token_peek_to_buffer(&peek, &buffer);
- if (result == 0) {
- result = sl_pp_process_elif(context, &buffer);
- sl_pp_token_buffer_destroy(&buffer);
- }
- } else if (name == context->dict._else) {
- result = sl_pp_process_else(context, peek.tokens, 0, peek.size - 1);
- } else if (name == context->dict.endif) {
- result = sl_pp_process_endif(context, peek.tokens, 0, peek.size - 1);
- } else if (context->if_value) {
- if (name == context->dict.define) {
- result = sl_pp_process_define(context, peek.tokens, 0, peek.size - 1);
- } else if (name == context->dict.error) {
- sl_pp_process_error(context, peek.tokens, 0, peek.size - 1);
- result = -1;
- } else if (name == context->dict.extension) {
- result = sl_pp_process_extension(context, peek.tokens, 0, peek.size - 1, &context->process_state);
- } else if (name == context->dict.line) {
- struct sl_pp_token_buffer buffer;
-
- result = sl_pp_token_peek_to_buffer(&peek, &buffer);
- if (result == 0) {
- result = sl_pp_process_line(context, &buffer, &context->process_state);
- sl_pp_token_buffer_destroy(&buffer);
- }
- } else if (name == context->dict.pragma) {
- result = sl_pp_process_pragma(context, peek.tokens, 0, peek.size - 1, &context->process_state);
- } else if (name == context->dict.undef) {
- result = sl_pp_process_undef(context, peek.tokens, 0, peek.size - 1);
- } else {
- strcpy(context->error_msg, "unrecognised directive name");
- result = -1;
- }
- }
-
- sl_pp_token_peek_commit(&peek);
- sl_pp_token_peek_destroy(&peek);
-
- if (result) {
- return result;
- }
-
- if (sl_pp_process_out(&context->process_state, &endof)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- context->line++;
- }
- break;
-
- case SL_PP_NEWLINE:
- /* Empty directive. */
- if (sl_pp_process_out(&context->process_state, &input)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- context->line++;
- break;
-
- case SL_PP_EOF:
- /* Empty directive. */
- if (sl_pp_process_out(&context->process_state, &input)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- found_eof = 1;
- break;
-
- default:
- strcpy(context->error_msg, "expected a directive name");
- return -1;
- }
- } else {
- int found_eol = 0;
-
- sl_pp_token_buffer_unget(&context->tokens, &input);
-
- while (!found_eol) {
- if (sl_pp_token_buffer_get(&context->tokens, &input)) {
- return -1;
- }
-
- switch (input.token) {
- case SL_PP_WHITESPACE:
- /* Drop whitespace all together at this point. */
- break;
-
- case SL_PP_NEWLINE:
- /* Preserve newline just for the sake of line numbering. */
- if (sl_pp_process_out(&context->process_state, &input)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- context->line++;
- found_eol = 1;
- break;
-
- case SL_PP_EOF:
- if (sl_pp_process_out(&context->process_state, &input)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- found_eof = 1;
- found_eol = 1;
- break;
-
- case SL_PP_IDENTIFIER:
- sl_pp_token_buffer_unget(&context->tokens, &input);
- if (sl_pp_macro_expand(context, &context->tokens, NULL, &context->process_state,
- context->if_value ? sl_pp_macro_expand_normal : sl_pp_macro_expand_mute)) {
- return -1;
- }
- break;
-
- default:
- if (context->if_value) {
- if (sl_pp_process_out(&context->process_state, &input)) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- }
- }
- }
- }
-
- if (found_eof) {
- if (context->if_ptr != SL_PP_MAX_IF_NESTING) {
- strcpy(context->error_msg, "expected `#endif' directive");
- return -1;
- }
- }
- }
-}
-
-int
-sl_pp_process(struct sl_pp_context *context,
- struct sl_pp_token_info **output)
-{
- struct sl_pp_process_state state;
-
- memset(&state, 0, sizeof(state));
- for (;;) {
- struct sl_pp_token_info input;
-
- if (sl_pp_process_get(context, &input)) {
- free(state.out);
- return -1;
- }
- if (sl_pp_process_out(&state, &input)) {
- free(state.out);
- return -1;
- }
- if (input.token == SL_PP_EOF) {
- *output = state.out;
- return 0;
- }
- }
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_process.h b/mesalib/src/glsl/pp/sl_pp_process.h
deleted file mode 100644
index fe6ff0d46..000000000
--- a/mesalib/src/glsl/pp/sl_pp_process.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_PROCESS_H
-#define SL_PP_PROCESS_H
-
-#include "sl_pp_macro.h"
-#include "sl_pp_token.h"
-
-
-struct sl_pp_context;
-
-struct sl_pp_process_state {
- struct sl_pp_token_info *out;
- unsigned int out_len;
- unsigned int out_max;
-};
-
-int
-sl_pp_process_define(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-int
-sl_pp_process_undef(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-int
-sl_pp_process_if(struct sl_pp_context *context,
- struct sl_pp_token_buffer *input);
-
-int
-sl_pp_process_ifdef(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-int
-sl_pp_process_ifndef(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-int
-sl_pp_process_elif(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer);
-
-int
-sl_pp_process_else(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-int
-sl_pp_process_endif(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-void
-sl_pp_process_error(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last);
-
-int
-sl_pp_process_pragma(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last,
- struct sl_pp_process_state *state);
-
-int
-sl_pp_process_extension(struct sl_pp_context *context,
- const struct sl_pp_token_info *input,
- unsigned int first,
- unsigned int last,
- struct sl_pp_process_state *state);
-
-int
-sl_pp_process_line(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer,
- struct sl_pp_process_state *state);
-
-int
-sl_pp_process_out(struct sl_pp_process_state *state,
- const struct sl_pp_token_info *token);
-
-#endif /* SL_PP_PROCESS_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_public.h b/mesalib/src/glsl/pp/sl_pp_public.h
deleted file mode 100644
index ca6f72254..000000000
--- a/mesalib/src/glsl/pp/sl_pp_public.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_PUBLIC_H
-#define SL_PP_PUBLIC_H
-
-
-struct sl_pp_context;
-
-
-#include "sl_pp_purify.h"
-#include "sl_pp_token.h"
-
-
-struct sl_pp_context *
-sl_pp_context_create(const char *input,
- const struct sl_pp_purify_options *options);
-
-void
-sl_pp_context_destroy(struct sl_pp_context *context);
-
-const char *
-sl_pp_context_error_message(const struct sl_pp_context *context);
-
-void
-sl_pp_context_error_position(const struct sl_pp_context *context,
- unsigned int *file,
- unsigned int *line);
-
-int
-sl_pp_context_add_extension(struct sl_pp_context *context,
- const char *name);
-
-int
-sl_pp_context_add_predefined(struct sl_pp_context *context,
- const char *name,
- const char *value);
-
-int
-sl_pp_context_add_unique_str(struct sl_pp_context *context,
- const char *str);
-
-const char *
-sl_pp_context_cstr(const struct sl_pp_context *context,
- int offset);
-
-int
-sl_pp_version(struct sl_pp_context *context,
- unsigned int *version);
-
-int
-sl_pp_process_get(struct sl_pp_context *context,
- struct sl_pp_token_info *output);
-
-int
-sl_pp_process(struct sl_pp_context *context,
- struct sl_pp_token_info **output);
-
-#endif /* SL_PP_PUBLIC_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_purify.c b/mesalib/src/glsl/pp/sl_pp_purify.c
deleted file mode 100644
index acc000cf3..000000000
--- a/mesalib/src/glsl/pp/sl_pp_purify.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include "sl_pp_purify.h"
-
-
-/*
- * Preprocessor purifier performs the following tasks.
- * - Convert all variants of newlines into a Unix newline.
- * - Merge continued lines into a single long line.
- * - Remove line comments and replace block comments with whitespace.
- */
-
-
-static unsigned int
-_purify_newline(const char *input,
- char *out,
- unsigned int *current_line)
-{
- if (input[0] == '\n') {
- *out = '\n';
- (*current_line)++;
- if (input[1] == '\r') {
- /*
- * The GLSL spec is not explicit about whether this
- * combination is a valid newline or not.
- * Let's assume it is acceptable.
- */
- return 2;
- }
- return 1;
- }
- if (input[0] == '\r') {
- *out = '\n';
- (*current_line)++;
- if (input[1] == '\n') {
- return 2;
- }
- return 1;
- }
- *out = input[0];
- return 1;
-}
-
-
-static unsigned int
-_purify_backslash(const char *input,
- char *out,
- unsigned int *current_line)
-{
- unsigned int eaten = 0;
-
- for (;;) {
- if (input[0] == '\\') {
- char next;
- unsigned int next_eaten;
- unsigned int next_line = *current_line;
-
- eaten++;
- input++;
-
- next_eaten = _purify_newline(input, &next, &next_line);
- if (next == '\n') {
- /*
- * If this is really a line continuation sequence, eat
- * it and do not exit the loop.
- */
- eaten += next_eaten;
- input += next_eaten;
- *current_line = next_line;
- } else {
- /*
- * It is an error to put anything between a backslash
- * and a newline and still expect it to behave like a line
- * continuation sequence.
- * Even if it is an innocent whitespace.
- */
- *out = '\\';
- break;
- }
- } else {
- eaten += _purify_newline(input, out, current_line);
- break;
- }
- }
- return eaten;
-}
-
-
-static void
-_report_error(char *buf,
- unsigned int cbbuf,
- const char *msg,
- ...)
-{
- va_list args;
-
- va_start(args, msg);
- vsnprintf(buf, cbbuf, msg, args);
- va_end(args);
-}
-
-
-void
-sl_pp_purify_state_init(struct sl_pp_purify_state *state,
- const char *input,
- const struct sl_pp_purify_options *options)
-{
- state->options = *options;
- state->input = input;
- state->current_line = 1;
- state->inside_c_comment = 0;
-}
-
-
-static unsigned int
-_purify_comment(struct sl_pp_purify_state *state,
- char *output,
- unsigned int *current_line,
- char *errormsg,
- unsigned int cberrormsg)
-{
- for (;;) {
- unsigned int eaten;
- char next;
-
- eaten = _purify_backslash(state->input, &next, current_line);
- state->input += eaten;
- while (next == '*') {
- eaten = _purify_backslash(state->input, &next, current_line);
- state->input += eaten;
- if (next == '/') {
- *output = ' ';
- state->inside_c_comment = 0;
- return 1;
- }
- }
- if (next == '\n') {
- *output = '\n';
- state->inside_c_comment = 1;
- return 1;
- }
- if (next == '\0') {
- _report_error(errormsg, cberrormsg, "expected `*/' but end of translation unit found");
- return 0;
- }
- }
-}
-
-
-unsigned int
-sl_pp_purify_getc(struct sl_pp_purify_state *state,
- char *output,
- unsigned int *current_line,
- char *errormsg,
- unsigned int cberrormsg)
-{
- unsigned int eaten;
-
- if (state->inside_c_comment) {
- return _purify_comment(state, output, current_line, errormsg, cberrormsg);
- }
-
- eaten = _purify_backslash(state->input, output, current_line);
- state->input += eaten;
- if (*output == '/') {
- char next;
- unsigned int next_line = *current_line;
-
- eaten = _purify_backslash(state->input, &next, &next_line);
- if (next == '/') {
- state->input += eaten;
- *current_line = next_line;
-
- /* Replace a line comment with either a newline or nil. */
- for (;;) {
- eaten = _purify_backslash(state->input, &next, current_line);
- state->input += eaten;
- if (next == '\n' || next == '\0') {
- *output = next;
- return eaten;
- }
- }
- } else if (next == '*') {
- state->input += eaten;
- *current_line = next_line;
-
- return _purify_comment(state, output, current_line, errormsg, cberrormsg);
- }
- }
- return eaten;
-}
-
-
-struct out_buf {
- char *out;
- unsigned int len;
- unsigned int capacity;
- unsigned int current_line;
- char *errormsg;
- unsigned int cberrormsg;
-};
-
-
-static int
-_out_buf_putc(struct out_buf *obuf,
- char c)
-{
- if (obuf->len >= obuf->capacity) {
- unsigned int new_max = obuf->capacity;
-
- if (new_max < 0x100) {
- new_max = 0x100;
- } else if (new_max < 0x10000) {
- new_max *= 2;
- } else {
- new_max += 0x10000;
- }
-
- obuf->out = realloc(obuf->out, new_max);
- if (!obuf->out) {
- _report_error(obuf->errormsg, obuf->cberrormsg, "out of memory");
- return -1;
- }
- obuf->capacity = new_max;
- }
-
- obuf->out[obuf->len++] = c;
-
- return 0;
-}
-
-
-int
-sl_pp_purify(const char *input,
- const struct sl_pp_purify_options *options,
- char **output,
- char *errormsg,
- unsigned int cberrormsg,
- unsigned int *errorline)
-{
- struct out_buf obuf;
- struct sl_pp_purify_state state;
-
- obuf.out = NULL;
- obuf.len = 0;
- obuf.capacity = 0;
- obuf.current_line = 1;
- obuf.errormsg = errormsg;
- obuf.cberrormsg = cberrormsg;
-
- sl_pp_purify_state_init(&state, input, options);
-
- for (;;) {
- unsigned int eaten;
- char c;
-
- eaten = sl_pp_purify_getc(&state, &c, &obuf.current_line, errormsg, cberrormsg);
- if (!eaten) {
- *errorline = obuf.current_line;
- return -1;
- }
- if (_out_buf_putc(&obuf, c)) {
- *errorline = obuf.current_line;
- return -1;
- }
-
- if (c == '\0') {
- break;
- }
- }
-
- *output = obuf.out;
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_purify.h b/mesalib/src/glsl/pp/sl_pp_purify.h
deleted file mode 100644
index c0f55cbfd..000000000
--- a/mesalib/src/glsl/pp/sl_pp_purify.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_PURIFY_H
-#define SL_PP_PURIFY_H
-
-struct sl_pp_purify_options {
- unsigned int preserve_columns:1;
- unsigned int tab_width:4;
-};
-
-int
-sl_pp_purify(const char *input,
- const struct sl_pp_purify_options *options,
- char **output,
- char *errormsg,
- unsigned int cberrormsg,
- unsigned int *errorline);
-
-struct sl_pp_purify_state {
- struct sl_pp_purify_options options;
- const char *input;
- unsigned int current_line;
- unsigned int inside_c_comment:1;
-};
-
-void
-sl_pp_purify_state_init(struct sl_pp_purify_state *state,
- const char *input,
- const struct sl_pp_purify_options *options);
-
-unsigned int
-sl_pp_purify_getc(struct sl_pp_purify_state *state,
- char *output,
- unsigned int *current_line,
- char *errormsg,
- unsigned int cberrormsg);
-
-#endif /* SL_PP_PURIFY_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_token.c b/mesalib/src/glsl/pp/sl_pp_token.c
deleted file mode 100644
index a70897870..000000000
--- a/mesalib/src/glsl/pp/sl_pp_token.c
+++ /dev/null
@@ -1,854 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_public.h"
-#include "sl_pp_context.h"
-#include "sl_pp_token.h"
-
-
-#define PURE_ERROR 256
-
-static int
-_pure_getc(struct sl_pp_context *context)
-{
- char c;
-
- if (context->getc_buf_size) {
- return context->getc_buf[--context->getc_buf_size];
- }
-
- if (sl_pp_purify_getc(&context->pure, &c, &context->error_line, context->error_msg, sizeof(context->error_msg)) == 0) {
- return PURE_ERROR;
- }
- return c;
-}
-
-
-static void
-_pure_ungetc(struct sl_pp_context *context,
- int c)
-{
- assert(c != PURE_ERROR);
-
- if (context->getc_buf_size == context->getc_buf_capacity) {
- context->getc_buf_capacity += 64;
- context->getc_buf = realloc(context->getc_buf, context->getc_buf_capacity * sizeof(char));
- assert(context->getc_buf);
- }
-
- context->getc_buf[context->getc_buf_size++] = (char)c;
-}
-
-
-struct lookahead_state {
- char buf[256];
- unsigned int pos;
- struct sl_pp_context *context;
-};
-
-
-static void
-_lookahead_init(struct lookahead_state *lookahead,
- struct sl_pp_context *context)
-{
- lookahead->pos = 0;
- lookahead->context = context;
-}
-
-
-static unsigned int
-_lookahead_tell(const struct lookahead_state *lookahead)
-{
- return lookahead->pos;
-}
-
-
-static const void *
-_lookahead_buf(const struct lookahead_state *lookahead)
-{
- return lookahead->buf;
-}
-
-
-static void
-_lookahead_revert(struct lookahead_state *lookahead,
- unsigned int pos)
-{
- assert(pos <= lookahead->pos);
-
- while (lookahead->pos > pos) {
- _pure_ungetc(lookahead->context, lookahead->buf[--lookahead->pos]);
- }
-}
-
-
-static int
-_lookahead_getc(struct lookahead_state *lookahead)
-{
- int c;
-
- assert(lookahead->pos < sizeof(lookahead->buf) / sizeof(lookahead->buf[0]));
-
- c = _pure_getc(lookahead->context);
- if (c != PURE_ERROR) {
- lookahead->buf[lookahead->pos++] = (char)c;
- }
- return c;
-}
-
-
-static int
-_is_identifier_char(char c)
-{
- return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_';
-}
-
-
-static int
-_tokenise_identifier(struct sl_pp_context *context,
- struct sl_pp_token_info *out)
-{
- int c;
- char identifier[256]; /* XXX: Remove this artifical limit. */
- unsigned int i = 0;
-
- out->token = SL_PP_IDENTIFIER;
- out->data.identifier = -1;
-
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- identifier[i++] = (char)c;
- for (;;) {
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
-
- if (_is_identifier_char((char)c)) {
- if (i >= sizeof(identifier) / sizeof(char) - 1) {
- strcpy(context->error_msg, "out of memory");
- _pure_ungetc(context, c);
- while (i) {
- _pure_ungetc(context, identifier[--i]);
- }
- return -1;
- }
- identifier[i++] = (char)c;
- } else {
- _pure_ungetc(context, c);
- break;
- }
- }
- identifier[i] = '\0';
-
- out->data.identifier = sl_pp_context_add_unique_str(context, identifier);
- if (out->data.identifier == -1) {
- while (i) {
- _pure_ungetc(context, identifier[--i]);
- }
- return -1;
- }
-
- return 0;
-}
-
-
-/*
- * Return the number of consecutive decimal digits in the input stream.
- */
-static unsigned int
-_parse_float_digits(struct lookahead_state *lookahead)
-{
- unsigned int eaten;
-
- for (eaten = 0;; eaten++) {
- unsigned int pos = _lookahead_tell(lookahead);
- char c = _lookahead_getc(lookahead);
-
- if (c < '0' || c > '9') {
- _lookahead_revert(lookahead, pos);
- break;
- }
- }
- return eaten;
-}
-
-
-/*
- * Try to match one of the following patterns for the fractional part
- * of a floating point number.
- *
- * digits . [digits]
- * . digits
- *
- * Return 0 if the pattern could not be matched, otherwise the number
- * of eaten characters from the input stream.
- */
-static unsigned int
-_parse_float_frac(struct lookahead_state *lookahead)
-{
- unsigned int pos;
- int c;
- unsigned int eaten;
-
- pos = _lookahead_tell(lookahead);
- c = _lookahead_getc(lookahead);
- if (c == '.') {
- eaten = _parse_float_digits(lookahead);
- if (eaten) {
- return eaten + 1;
- }
- _lookahead_revert(lookahead, pos);
- return 0;
- }
-
- _lookahead_revert(lookahead, pos);
- eaten = _parse_float_digits(lookahead);
- if (eaten) {
- c = _lookahead_getc(lookahead);
- if (c == '.') {
- return eaten + 1 + _parse_float_digits(lookahead);
- }
- }
-
- _lookahead_revert(lookahead, pos);
- return 0;
-}
-
-
-/*
- * Try to match the following pattern for the exponential part
- * of a floating point number.
- *
- * (e|E) [(+|-)] digits
- *
- * Return 0 if the pattern could not be matched, otherwise the number
- * of eaten characters from the input stream.
- */
-static unsigned int
-_parse_float_exp(struct lookahead_state *lookahead)
-{
- unsigned int pos, pos2;
- int c;
- unsigned int eaten, digits;
-
- pos = _lookahead_tell(lookahead);
- c = _lookahead_getc(lookahead);
- if (c != 'e' && c != 'E') {
- _lookahead_revert(lookahead, pos);
- return 0;
- }
-
- pos2 = _lookahead_tell(lookahead);
- c = _lookahead_getc(lookahead);
- if (c == '-' || c == '+') {
- eaten = 2;
- } else {
- _lookahead_revert(lookahead, pos2);
- eaten = 1;
- }
-
- digits = _parse_float_digits(lookahead);
- if (!digits) {
- _lookahead_revert(lookahead, pos);
- return 0;
- }
-
- return eaten + digits;
-}
-
-
-/*
- * Try to match one of the following patterns for a floating point number.
- *
- * fract [exp] [(f|F)]
- * digits exp [(f|F)]
- *
- * Return 0 if the pattern could not be matched, otherwise the number
- * of eaten characters from the input stream.
- */
-static unsigned int
-_parse_float(struct lookahead_state *lookahead)
-{
- unsigned int eaten;
-
- eaten = _parse_float_frac(lookahead);
- if (eaten) {
- unsigned int pos;
- int c;
-
- eaten += _parse_float_exp(lookahead);
-
- pos = _lookahead_tell(lookahead);
- c = _lookahead_getc(lookahead);
- if (c == 'f' || c == 'F') {
- eaten++;
- } else {
- _lookahead_revert(lookahead, pos);
- }
-
- return eaten;
- }
-
- eaten = _parse_float_digits(lookahead);
- if (eaten) {
- unsigned int exponent;
-
- exponent = _parse_float_exp(lookahead);
- if (exponent) {
- unsigned int pos;
- int c;
-
- eaten += exponent;
-
- pos = _lookahead_tell(lookahead);
- c = _lookahead_getc(lookahead);
- if (c == 'f' || c == 'F') {
- eaten++;
- } else {
- _lookahead_revert(lookahead, pos);
- }
-
- return eaten;
- }
- }
-
- _lookahead_revert(lookahead, 0);
- return 0;
-}
-
-
-static unsigned int
-_parse_hex(struct lookahead_state *lookahead)
-{
- int c;
- unsigned int n;
-
- c = _lookahead_getc(lookahead);
- if (c != '0') {
- _lookahead_revert(lookahead, 0);
- return 0;
- }
-
- c = _lookahead_getc(lookahead);
- if (c != 'x' && c != 'X') {
- _lookahead_revert(lookahead, 0);
- return 0;
- }
-
- for (n = 2;;) {
- unsigned int pos = _lookahead_tell(lookahead);
-
- c = _lookahead_getc(lookahead);
- if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) {
- n++;
- } else {
- _lookahead_revert(lookahead, pos);
- break;
- }
- }
-
- if (n > 2) {
- return n;
- }
-
- _lookahead_revert(lookahead, 0);
- return 0;
-}
-
-
-static unsigned int
-_parse_oct(struct lookahead_state *lookahead)
-{
- int c;
- unsigned int n;
-
- c = _lookahead_getc(lookahead);
- if (c != '0') {
- _lookahead_revert(lookahead, 0);
- return 0;
- }
-
- for (n = 1;;) {
- unsigned int pos = _lookahead_tell(lookahead);
-
- c = _lookahead_getc(lookahead);
- if ((c >= '0' && c <= '7')) {
- n++;
- } else {
- _lookahead_revert(lookahead, pos);
- break;
- }
- }
-
- return n;
-}
-
-
-static unsigned int
-_parse_dec(struct lookahead_state *lookahead)
-{
- unsigned int n = 0;
-
- for (;;) {
- unsigned int pos = _lookahead_tell(lookahead);
- int c = _lookahead_getc(lookahead);
-
- if ((c >= '0' && c <= '9')) {
- n++;
- } else {
- _lookahead_revert(lookahead, pos);
- break;
- }
- }
-
- return n;
-}
-
-
-static int
-_tokenise_number(struct sl_pp_context *context,
- struct sl_pp_token_info *out)
-{
- struct lookahead_state lookahead;
- unsigned int eaten;
- unsigned int is_float = 0;
- unsigned int pos;
- int c;
- char number[256]; /* XXX: Remove this artifical limit. */
-
- _lookahead_init(&lookahead, context);
-
- eaten = _parse_float(&lookahead);
- if (!eaten) {
- eaten = _parse_hex(&lookahead);
- if (!eaten) {
- eaten = _parse_oct(&lookahead);
- if (!eaten) {
- eaten = _parse_dec(&lookahead);
- }
- }
- } else {
- is_float = 1;
- }
-
- if (!eaten) {
- strcpy(context->error_msg, "expected a number");
- return -1;
- }
-
- pos = _lookahead_tell(&lookahead);
- c = _lookahead_getc(&lookahead);
- _lookahead_revert(&lookahead, pos);
-
- if (_is_identifier_char(c)) {
- strcpy(context->error_msg, "expected a number");
- _lookahead_revert(&lookahead, 0);
- return -1;
- }
-
- if (eaten > sizeof(number) - 1) {
- strcpy(context->error_msg, "out of memory");
- _lookahead_revert(&lookahead, 0);
- return -1;
- }
-
- assert(_lookahead_tell(&lookahead) == eaten);
-
- memcpy(number, _lookahead_buf(&lookahead), eaten);
- number[eaten] = '\0';
-
- if (is_float) {
- out->token = SL_PP_FLOAT;
- out->data._float = sl_pp_context_add_unique_str(context, number);
- if (out->data._float == -1) {
- _lookahead_revert(&lookahead, 0);
- return -1;
- }
- } else {
- out->token = SL_PP_UINT;
- out->data._uint = sl_pp_context_add_unique_str(context, number);
- if (out->data._uint == -1) {
- _lookahead_revert(&lookahead, 0);
- return -1;
- }
- }
-
- return 0;
-}
-
-
-int
-sl_pp_token_get(struct sl_pp_context *context,
- struct sl_pp_token_info *out)
-{
- int c = _pure_getc(context);
-
- switch (c) {
- case ' ':
- case '\t':
- out->token = SL_PP_WHITESPACE;
- break;
-
- case '\n':
- out->token = SL_PP_NEWLINE;
- break;
-
- case '#':
- out->token = SL_PP_HASH;
- break;
-
- case ',':
- out->token = SL_PP_COMMA;
- break;
-
- case ';':
- out->token = SL_PP_SEMICOLON;
- break;
-
- case '{':
- out->token = SL_PP_LBRACE;
- break;
-
- case '}':
- out->token = SL_PP_RBRACE;
- break;
-
- case '(':
- out->token = SL_PP_LPAREN;
- break;
-
- case ')':
- out->token = SL_PP_RPAREN;
- break;
-
- case '[':
- out->token = SL_PP_LBRACKET;
- break;
-
- case ']':
- out->token = SL_PP_RBRACKET;
- break;
-
- case '.':
- {
- int c2 = _pure_getc(context);
-
- if (c2 == PURE_ERROR) {
- return -1;
- }
- if (c2 >= '0' && c2 <= '9') {
- _pure_ungetc(context, c2);
- _pure_ungetc(context, c);
- if (_tokenise_number(context, out)) {
- return -1;
- }
- } else {
- _pure_ungetc(context, c2);
- out->token = SL_PP_DOT;
- }
- }
- break;
-
- case '+':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '+') {
- out->token = SL_PP_INCREMENT;
- } else if (c == '=') {
- out->token = SL_PP_ADDASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_PLUS;
- }
- break;
-
- case '-':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '-') {
- out->token = SL_PP_DECREMENT;
- } else if (c == '=') {
- out->token = SL_PP_SUBASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_MINUS;
- }
- break;
-
- case '~':
- out->token = SL_PP_BITNOT;
- break;
-
- case '!':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_NOTEQUAL;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_NOT;
- }
- break;
-
- case '*':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_MULASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_STAR;
- }
- break;
-
- case '/':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_DIVASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_SLASH;
- }
- break;
-
- case '%':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_MODASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_MODULO;
- }
- break;
-
- case '<':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '<') {
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_LSHIFTASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_LSHIFT;
- }
- } else if (c == '=') {
- out->token = SL_PP_LESSEQUAL;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_LESS;
- }
- break;
-
- case '>':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '>') {
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_RSHIFTASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_RSHIFT;
- }
- } else if (c == '=') {
- out->token = SL_PP_GREATEREQUAL;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_GREATER;
- }
- break;
-
- case '=':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '=') {
- out->token = SL_PP_EQUAL;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_ASSIGN;
- }
- break;
-
- case '&':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '&') {
- out->token = SL_PP_AND;
- } else if (c == '=') {
- out->token = SL_PP_BITANDASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_BITAND;
- }
- break;
-
- case '^':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '^') {
- out->token = SL_PP_XOR;
- } else if (c == '=') {
- out->token = SL_PP_BITXORASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_BITXOR;
- }
- break;
-
- case '|':
- c = _pure_getc(context);
- if (c == PURE_ERROR) {
- return -1;
- }
- if (c == '|') {
- out->token = SL_PP_OR;
- } else if (c == '=') {
- out->token = SL_PP_BITORASSIGN;
- } else {
- _pure_ungetc(context, c);
- out->token = SL_PP_BITOR;
- }
- break;
-
- case '?':
- out->token = SL_PP_QUESTION;
- break;
-
- case ':':
- out->token = SL_PP_COLON;
- break;
-
- case '\0':
- out->token = SL_PP_EOF;
- break;
-
- case PURE_ERROR:
- return -1;
-
- default:
- if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_') {
- _pure_ungetc(context, c);
- if (_tokenise_identifier(context, out)) {
- return -1;
- }
- } else if (c >= '0' && c <= '9') {
- _pure_ungetc(context, c);
- if (_tokenise_number(context, out)) {
- return -1;
- }
- } else {
- out->data.other = c;
- out->token = SL_PP_OTHER;
- }
- }
-
- return 0;
-}
-
-
-int
-sl_pp_tokenise(struct sl_pp_context *context,
- struct sl_pp_token_info **output)
-{
- struct sl_pp_token_info *out = NULL;
- unsigned int out_len = 0;
- unsigned int out_max = 0;
-
- for (;;) {
- struct sl_pp_token_info info;
-
- if (sl_pp_token_buffer_get(&context->tokens, &info)) {
- free(out);
- return -1;
- }
-
- if (out_len >= out_max) {
- unsigned int new_max = out_max;
-
- if (new_max < 0x100) {
- new_max = 0x100;
- } else if (new_max < 0x10000) {
- new_max *= 2;
- } else {
- new_max += 0x10000;
- }
-
- out = realloc(out, new_max * sizeof(struct sl_pp_token_info));
- if (!out) {
- strcpy(context->error_msg, "out of memory");
- return -1;
- }
- out_max = new_max;
- }
-
- out[out_len++] = info;
-
- if (info.token == SL_PP_EOF) {
- break;
- }
- }
-
- *output = out;
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_token.h b/mesalib/src/glsl/pp/sl_pp_token.h
deleted file mode 100644
index a12b19340..000000000
--- a/mesalib/src/glsl/pp/sl_pp_token.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_TOKEN_H
-#define SL_PP_TOKEN_H
-
-
-struct sl_pp_context;
-
-enum sl_pp_token {
- SL_PP_WHITESPACE,
- SL_PP_NEWLINE,
- SL_PP_HASH, /* # */
-
- SL_PP_COMMA, /* , */
- SL_PP_SEMICOLON, /* ; */
- SL_PP_LBRACE, /* { */
- SL_PP_RBRACE, /* } */
- SL_PP_LPAREN, /* ( */
- SL_PP_RPAREN, /* ) */
- SL_PP_LBRACKET, /* [ */
- SL_PP_RBRACKET, /* ] */
- SL_PP_DOT, /* . */
- SL_PP_INCREMENT, /* ++ */
- SL_PP_ADDASSIGN, /* += */
- SL_PP_PLUS, /* + */
- SL_PP_DECREMENT, /* -- */
- SL_PP_SUBASSIGN, /* -= */
- SL_PP_MINUS, /* - */
- SL_PP_BITNOT, /* ~ */
- SL_PP_NOTEQUAL, /* != */
- SL_PP_NOT, /* ! */
- SL_PP_MULASSIGN, /* *= */
- SL_PP_STAR, /* * */
- SL_PP_DIVASSIGN, /* /= */
- SL_PP_SLASH, /* / */
- SL_PP_MODASSIGN, /* %= */
- SL_PP_MODULO, /* % */
- SL_PP_LSHIFTASSIGN, /* <<= */
- SL_PP_LSHIFT, /* << */
- SL_PP_LESSEQUAL, /* <= */
- SL_PP_LESS, /* < */
- SL_PP_RSHIFTASSIGN, /* >>= */
- SL_PP_RSHIFT, /* >> */
- SL_PP_GREATEREQUAL, /* >= */
- SL_PP_GREATER, /* > */
- SL_PP_EQUAL, /* == */
- SL_PP_ASSIGN, /* = */
- SL_PP_AND, /* && */
- SL_PP_BITANDASSIGN, /* &= */
- SL_PP_BITAND, /* & */
- SL_PP_XOR, /* ^^ */
- SL_PP_BITXORASSIGN, /* ^= */
- SL_PP_BITXOR, /* ^ */
- SL_PP_OR, /* || */
- SL_PP_BITORASSIGN, /* |= */
- SL_PP_BITOR, /* | */
- SL_PP_QUESTION, /* ? */
- SL_PP_COLON, /* : */
-
- SL_PP_IDENTIFIER,
-
- SL_PP_UINT,
- SL_PP_FLOAT,
-
- SL_PP_OTHER,
-
- SL_PP_PRAGMA_OPTIMIZE,
- SL_PP_PRAGMA_DEBUG,
-
- SL_PP_EXTENSION_REQUIRE,
- SL_PP_EXTENSION_ENABLE,
- SL_PP_EXTENSION_WARN,
- SL_PP_EXTENSION_DISABLE,
-
- SL_PP_LINE,
-
- SL_PP_EOF
-};
-
-union sl_pp_token_data {
- int identifier;
- int _uint;
- int _float;
- char other;
- int pragma;
- int extension;
- struct {
- unsigned int lineno: 24;
- unsigned int fileno: 8;
- } line;
-};
-
-struct sl_pp_token_info {
- enum sl_pp_token token;
- union sl_pp_token_data data;
-};
-
-struct sl_pp_purify_options;
-
-int
-sl_pp_token_get(struct sl_pp_context *context,
- struct sl_pp_token_info *out);
-
-int
-sl_pp_tokenise(struct sl_pp_context *context,
- struct sl_pp_token_info **output);
-
-#endif /* SL_PP_TOKEN_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_token_util.c b/mesalib/src/glsl/pp/sl_pp_token_util.c
deleted file mode 100644
index c85263d9a..000000000
--- a/mesalib/src/glsl/pp/sl_pp_token_util.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <assert.h>
-#include <stdlib.h>
-#include "sl_pp_token_util.h"
-
-
-int
-sl_pp_token_buffer_init(struct sl_pp_token_buffer *buffer,
- struct sl_pp_context *context)
-{
- buffer->context = context;
- buffer->size = 0;
- buffer->capacity = 64;
- buffer->tokens = malloc(buffer->capacity * sizeof(struct sl_pp_token_info));
- if (!buffer->tokens) {
- return -1;
- }
- return 0;
-}
-
-void
-sl_pp_token_buffer_destroy(struct sl_pp_token_buffer *buffer)
-{
- free(buffer->tokens);
-}
-
-int
-sl_pp_token_buffer_get(struct sl_pp_token_buffer *buffer,
- struct sl_pp_token_info *out)
-{
- /* Pop from stack first if not empty. */
- if (buffer->size) {
- *out = buffer->tokens[--buffer->size];
- return 0;
- }
-
- assert(buffer->context);
- return sl_pp_token_get(buffer->context, out);
-}
-
-void
-sl_pp_token_buffer_unget(struct sl_pp_token_buffer *buffer,
- const struct sl_pp_token_info *in)
-{
- /* Resize if needed. */
- if (buffer->size == buffer->capacity) {
- buffer->capacity += 64;
- buffer->tokens = realloc(buffer->tokens,
- buffer->capacity * sizeof(struct sl_pp_token_info));
- assert(buffer->tokens);
- }
-
- /* Push token on stack. */
- buffer->tokens[buffer->size++] = *in;
-}
-
-int
-sl_pp_token_buffer_skip_white(struct sl_pp_token_buffer *buffer,
- struct sl_pp_token_info *out)
-{
- if (sl_pp_token_buffer_get(buffer, out)) {
- return -1;
- }
-
- while (out->token == SL_PP_WHITESPACE) {
- if (sl_pp_token_buffer_get(buffer, out)) {
- return -1;
- }
- }
-
- return 0;
-}
-
-
-
-int
-sl_pp_token_peek_init(struct sl_pp_token_peek *peek,
- struct sl_pp_token_buffer *buffer)
-{
- peek->buffer = buffer;
- peek->size = 0;
- peek->capacity = 64;
- peek->tokens = malloc(peek->capacity * sizeof(struct sl_pp_token_info));
- if (!peek->tokens) {
- return -1;
- }
- return 0;
-}
-
-void
-sl_pp_token_peek_destroy(struct sl_pp_token_peek *peek)
-{
- /* Abort. */
- while (peek->size) {
- sl_pp_token_buffer_unget(peek->buffer, &peek->tokens[--peek->size]);
- }
- free(peek->tokens);
-}
-
-int
-sl_pp_token_peek_get(struct sl_pp_token_peek *peek,
- struct sl_pp_token_info *out)
-{
- /* Get token from buffer. */
- if (sl_pp_token_buffer_get(peek->buffer, out)) {
- return -1;
- }
-
- /* Save it. */
- if (peek->size == peek->capacity) {
- peek->capacity += 64;
- peek->tokens = realloc(peek->tokens,
- peek->capacity * sizeof(struct sl_pp_token_info));
- assert(peek->tokens);
- }
- peek->tokens[peek->size++] = *out;
- return 0;
-}
-
-void
-sl_pp_token_peek_commit(struct sl_pp_token_peek *peek)
-{
- peek->size = 0;
-}
-
-int
-sl_pp_token_peek_to_buffer(const struct sl_pp_token_peek *peek,
- struct sl_pp_token_buffer *buffer)
-{
- unsigned int i;
-
- if (sl_pp_token_buffer_init(buffer, NULL)) {
- return -1;
- }
- for (i = peek->size; i > 0; i--) {
- sl_pp_token_buffer_unget(buffer, &peek->tokens[i - 1]);
- }
- return 0;
-}
-
-int
-sl_pp_token_peek_skip_white(struct sl_pp_token_peek *peek,
- struct sl_pp_token_info *out)
-{
- if (sl_pp_token_peek_get(peek, out)) {
- return -1;
- }
-
- while (out->token == SL_PP_WHITESPACE) {
- if (sl_pp_token_peek_get(peek, out)) {
- return -1;
- }
- }
-
- return 0;
-}
diff --git a/mesalib/src/glsl/pp/sl_pp_token_util.h b/mesalib/src/glsl/pp/sl_pp_token_util.h
deleted file mode 100644
index 2a668ad0a..000000000
--- a/mesalib/src/glsl/pp/sl_pp_token_util.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifndef SL_PP_TOKEN_UTIL_H
-#define SL_PP_TOKEN_UTIL_H
-
-#include <assert.h>
-#include <stdlib.h>
-#include "sl_pp_token.h"
-
-
-struct sl_pp_context;
-
-/*
- * A token buffer allows one to get and unget a token
- * from a preprocessor context.
- */
-struct sl_pp_token_buffer {
- struct sl_pp_context *context;
- unsigned int size;
- unsigned int capacity;
- struct sl_pp_token_info *tokens;
-};
-
-int
-sl_pp_token_buffer_init(struct sl_pp_token_buffer *buffer,
- struct sl_pp_context *context);
-
-void
-sl_pp_token_buffer_destroy(struct sl_pp_token_buffer *buffer);
-
-int
-sl_pp_token_buffer_get(struct sl_pp_token_buffer *buffer,
- struct sl_pp_token_info *out);
-
-void
-sl_pp_token_buffer_unget(struct sl_pp_token_buffer *buffer,
- const struct sl_pp_token_info *in);
-
-int
-sl_pp_token_buffer_skip_white(struct sl_pp_token_buffer *buffer,
- struct sl_pp_token_info *out);
-
-
-/*
- * A token peek allows one to get a number of tokens from a buffer
- * and then either commit the operation or abort it,
- * effectively ungetting the peeked tokens.
- */
-struct sl_pp_token_peek {
- struct sl_pp_token_buffer *buffer;
- unsigned int size;
- unsigned int capacity;
- struct sl_pp_token_info *tokens;
-};
-
-int
-sl_pp_token_peek_init(struct sl_pp_token_peek *peek,
- struct sl_pp_token_buffer *buffer);
-
-void
-sl_pp_token_peek_destroy(struct sl_pp_token_peek *peek);
-
-int
-sl_pp_token_peek_get(struct sl_pp_token_peek *peek,
- struct sl_pp_token_info *out);
-
-void
-sl_pp_token_peek_commit(struct sl_pp_token_peek *peek);
-
-int
-sl_pp_token_peek_to_buffer(const struct sl_pp_token_peek *peek,
- struct sl_pp_token_buffer *buffer);
-
-int
-sl_pp_token_peek_skip_white(struct sl_pp_token_peek *peek,
- struct sl_pp_token_info *out);
-
-#endif /* SL_PP_TOKEN_UTIL_H */
diff --git a/mesalib/src/glsl/pp/sl_pp_version.c b/mesalib/src/glsl/pp/sl_pp_version.c
deleted file mode 100644
index 3c995b775..000000000
--- a/mesalib/src/glsl/pp/sl_pp_version.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2009 VMware, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#include <stdlib.h>
-#include <string.h>
-#include "sl_pp_public.h"
-#include "sl_pp_context.h"
-
-
-int
-sl_pp_version(struct sl_pp_context *context,
- unsigned int *version)
-{
- struct sl_pp_token_peek peek;
- unsigned int line = context->line;
-
- /* Default values if `#version' is not present. */
- *version = 110;
-
- if (sl_pp_token_peek_init(&peek, &context->tokens)) {
- return -1;
- }
-
- /* There can be multiple `#version' directives present.
- * Accept the value of the last one.
- */
- for (;;) {
- struct sl_pp_token_info input;
- int found_hash = 0;
- int found_version = 0;
- int found_number = 0;
- int found_end = 0;
-
- /* Skip whitespace and newlines and seek for hash. */
- while (!found_hash) {
- if (sl_pp_token_peek_get(&peek, &input)) {
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
-
- switch (input.token) {
- case SL_PP_NEWLINE:
- line++;
- break;
-
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_HASH:
- found_hash = 1;
- break;
-
- default:
- sl_pp_token_peek_destroy(&peek);
- return 0;
- }
- }
-
- /* Skip whitespace and seek for `version'. */
- while (!found_version) {
- if (sl_pp_token_peek_get(&peek, &input)) {
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
-
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_IDENTIFIER:
- if (input.data.identifier != context->dict.version) {
- sl_pp_token_peek_destroy(&peek);
- return 0;
- }
- found_version = 1;
- break;
-
- default:
- sl_pp_token_peek_destroy(&peek);
- return 0;
- }
- }
-
- sl_pp_token_peek_commit(&peek);
-
- /* Skip whitespace and seek for version number. */
- while (!found_number) {
- if (sl_pp_token_buffer_get(&context->tokens, &input)) {
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
-
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_UINT:
- *version = atoi(sl_pp_context_cstr(context, input.data._uint));
- found_number = 1;
- break;
-
- default:
- strcpy(context->error_msg, "expected version number after `#version'");
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
- }
-
- /* Skip whitespace and seek for either newline or eof. */
- while (!found_end) {
- if (sl_pp_token_buffer_get(&context->tokens, &input)) {
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
-
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_NEWLINE:
- line++;
- /* pass thru */
- case SL_PP_EOF:
- context->line = line;
- found_end = 1;
- break;
-
- default:
- strcpy(context->error_msg, "expected end of line after version number");
- sl_pp_token_peek_destroy(&peek);
- return -1;
- }
- }
- }
-
- /* Should not get here. */
-}
diff --git a/mesalib/src/glsl/program.h b/mesalib/src/glsl/program.h
new file mode 100644
index 000000000..893169b6c
--- /dev/null
+++ b/mesalib/src/glsl/program.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "main/core.h"
+
+extern void
+link_shaders(GLcontext *ctx, struct gl_shader_program *prog);
diff --git a/mesalib/src/glsl/s_expression.cpp b/mesalib/src/glsl/s_expression.cpp
new file mode 100644
index 000000000..4458c48d6
--- /dev/null
+++ b/mesalib/src/glsl/s_expression.cpp
@@ -0,0 +1,140 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <assert.h>
+#include "s_expression.h"
+
+s_symbol::s_symbol(const char *tmp, size_t n)
+{
+ this->str = talloc_strndup (this, tmp, n);
+ assert(this->str != NULL);
+}
+
+s_list::s_list()
+{
+}
+
+unsigned
+s_list::length() const
+{
+ unsigned i = 0;
+ foreach_iter(exec_list_iterator, it, this->subexpressions) {
+ i++;
+ }
+ return i;
+}
+
+static s_expression *
+read_atom(void *ctx, const char *& src)
+{
+ s_expression *expr = NULL;
+
+ // Skip leading spaces.
+ src += strspn(src, " \v\t\r\n");
+
+ size_t n = strcspn(src, "( \v\t\r\n)");
+ if (n == 0)
+ return NULL; // no atom
+
+ // Check if the atom is a number.
+ char *float_end = NULL;
+ double f = strtod(src, &float_end);
+ if (float_end != src) {
+ char *int_end = NULL;
+ int i = strtol(src, &int_end, 10);
+ // If strtod matched more characters, it must have a decimal part
+ if (float_end > int_end)
+ expr = new(ctx) s_float(f);
+ else
+ expr = new(ctx) s_int(i);
+ } else {
+ // Not a number; return a symbol.
+ expr = new(ctx) s_symbol(src, n);
+ }
+
+ src += n;
+
+ return expr;
+}
+
+s_expression *
+s_expression::read_expression(void *ctx, const char *&src)
+{
+ assert(src != NULL);
+
+ s_expression *atom = read_atom(ctx, src);
+ if (atom != NULL)
+ return atom;
+
+ // Skip leading spaces.
+ src += strspn(src, " \v\t\r\n");
+ if (src[0] == '(') {
+ ++src;
+
+ s_list *list = new(ctx) s_list;
+ s_expression *expr;
+
+ while ((expr = read_expression(ctx, src)) != NULL) {
+ list->subexpressions.push_tail(expr);
+ }
+ src += strspn(src, " \v\t\r\n");
+ if (src[0] != ')') {
+ printf("Unclosed expression (check your parenthesis).\n");
+ return NULL;
+ }
+ ++src;
+ return list;
+ }
+ return NULL;
+}
+
+void s_int::print()
+{
+ printf("%d", this->val);
+}
+
+void s_float::print()
+{
+ printf("%f", this->val);
+}
+
+void s_symbol::print()
+{
+ printf("%s", this->str);
+}
+
+void s_list::print()
+{
+ printf("(");
+ foreach_iter(exec_list_iterator, it, this->subexpressions) {
+ s_expression *expr = (s_expression*) it.get();
+ expr->print();
+ printf(" ");
+ }
+ printf(")");
+}
+
diff --git a/mesalib/src/glsl/s_expression.h b/mesalib/src/glsl/s_expression.h
new file mode 100644
index 000000000..aa22475a1
--- /dev/null
+++ b/mesalib/src/glsl/s_expression.h
@@ -0,0 +1,142 @@
+/* -*- c++ -*- */
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef S_EXPRESSION_H
+#define S_EXPRESSION_H
+
+#include "list.h"
+
+#define SX_AS_(t,x) ((x) && ((s_expression*) x)->is_##t()) ? ((s_##t*) (x)) \
+ : NULL
+#define SX_AS_LIST(x) SX_AS_(list, x)
+#define SX_AS_SYMBOL(x) SX_AS_(symbol, x)
+#define SX_AS_NUMBER(x) SX_AS_(number, x)
+#define SX_AS_INT(x) SX_AS_(int, x)
+
+/* For our purposes, S-Expressions are:
+ * - <int>
+ * - <float>
+ * - symbol
+ * - (expr1 expr2 ... exprN) where exprN is an S-Expression
+ *
+ * Unlike LISP/Scheme, we do not support (foo . bar) pairs.
+ */
+class s_expression : public exec_node
+{
+public:
+ /**
+ * Read an S-Expression from the given string.
+ * Advances the supplied pointer to just after the expression read.
+ *
+ * Any allocation will be performed with 'ctx' as the talloc owner.
+ */
+ static s_expression *read_expression(void *ctx, const char *&src);
+
+ /**
+ * Print out an S-Expression. Useful for debugging.
+ */
+ virtual void print() = 0;
+
+ virtual bool is_list() const { return false; }
+ virtual bool is_symbol() const { return false; }
+ virtual bool is_number() const { return false; }
+ virtual bool is_int() const { return false; }
+
+protected:
+ s_expression() { }
+};
+
+/* Atoms */
+
+class s_number : public s_expression
+{
+public:
+ bool is_number() const { return true; }
+
+ virtual float fvalue() = 0;
+
+protected:
+ s_number() { }
+};
+
+class s_int : public s_number
+{
+public:
+ s_int(int x) : val(x) { }
+
+ bool is_int() const { return true; }
+
+ float fvalue() { return float(this->val); }
+ int value() { return this->val; }
+
+ void print();
+
+private:
+ int val;
+};
+
+class s_float : public s_number
+{
+public:
+ s_float(float x) : val(x) { }
+
+ float fvalue() { return this->val; }
+
+ void print();
+
+private:
+ float val;
+};
+
+class s_symbol : public s_expression
+{
+public:
+ s_symbol(const char *, size_t);
+
+ bool is_symbol() const { return true; }
+
+ const char *value() { return this->str; }
+
+ void print();
+
+private:
+ char *str;
+};
+
+/* Lists of expressions: (expr1 ... exprN) */
+class s_list : public s_expression
+{
+public:
+ s_list();
+
+ virtual bool is_list() const { return true; }
+ unsigned length() const;
+
+ void print();
+
+ exec_list subexpressions;
+};
+
+#endif /* S_EXPRESSION_H */