From 47a6ae678489d7082b5d7da35d1a92b4233fb5eb Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Thu, 7 Jul 2011 08:34:33 +0200
Subject: mesa xkbcomp git update 7 Juli 2011

---
 mesalib/configure.ac                          |   22 +-
 mesalib/src/glsl/Makefile                     |  426 +++++-----
 mesalib/src/glsl/ir_function.cpp              |    2 +-
 mesalib/src/glsl/ir_print_visitor.cpp         |   10 +
 mesalib/src/glsl/linker.cpp                   |  108 ++-
 mesalib/src/glsl/opt_constant_propagation.cpp |   17 +-
 mesalib/src/mesa/main/arbprogram.c            |  229 +++---
 mesalib/src/mesa/main/feedback.c              | 1084 ++++++++++++-------------
 mesalib/src/mesa/main/texstore.c              |   21 +-
 mesalib/src/mesa/program/ir_to_mesa.cpp       |   28 +-
 10 files changed, 995 insertions(+), 952 deletions(-)

(limited to 'mesalib')

diff --git a/mesalib/configure.ac b/mesalib/configure.ac
index 7d0f3d8ba..f19f6478b 100644
--- a/mesalib/configure.ac
+++ b/mesalib/configure.ac
@@ -570,6 +570,11 @@ AC_ARG_ENABLE([xorg],
         [enable support for X.Org DDX API @<:@default=no@:>@])],
     [enable_xorg="$enableval"],
     [enable_xorg=no])
+AC_ARG_ENABLE([xa],
+    [AS_HELP_STRING([--enable-xa],
+        [enable build of the XA X Acceleration API @<:@default=no@:>@])],
+    [enable_xa="$enableval"],
+    [enable_xa=no])
 AC_ARG_ENABLE([d3d1x],
     [AS_HELP_STRING([--enable-d3d1x],
         [enable support for Direct3D 10 & 11 low-level API @<:@default=no@:>@])],
@@ -617,6 +622,7 @@ if test "x$enable_opengl" = xno -a \
         "x$enable_gles2" = xno -a \
         "x$enable_openvg" = xno -a \
         "x$enable_xorg" = xno -a \
+        "x$enable_xa" = xno -a \
         "x$enable_d3d1x" = xno; then
     AC_MSG_ERROR([at least one API should be enabled])
 fi
@@ -1421,6 +1427,14 @@ if test "x$enable_xorg" = xyes; then
     HAVE_ST_XORG=yes
 fi
 
+dnl
+dnl XA configuration
+dnl
+if test "x$enable_xa" = xyes; then
+    GALLIUM_STATE_TRACKERS_DIRS="xa $GALLIUM_STATE_TRACKERS_DIRS"
+    HAVE_ST_XA=yes
+fi
+
 dnl
 dnl OpenVG configuration
 dnl
@@ -1810,7 +1824,8 @@ dnl
 dnl Gallium helper functions
 dnl
 gallium_check_st() {
-    if test "x$HAVE_ST_DRI" = xyes || test "x$HAVE_ST_XORG" = xyes; then
+    if test "x$HAVE_ST_DRI" = xyes || test "x$HAVE_ST_XORG" = xyes ||
+	 test "x$HAVE_ST_XA" = xyes; then
          if test "x$have_libdrm" != xyes; then
             AC_MSG_ERROR([DRI or Xorg DDX requires libdrm >= $LIBDRM_REQUIRED])
          fi
@@ -1822,6 +1837,9 @@ gallium_check_st() {
     if test "x$HAVE_ST_XORG" = xyes && test "x$3" != x; then
          GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS $3"
     fi
+    if test "x$HAVE_ST_XA" = xyes && test "x$4" != x; then
+         GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS $4"
+    fi
 }
 
 gallium_require_llvm() {
@@ -1842,7 +1860,7 @@ if test "x$with_gallium_drivers" != x; then
     for driver in $gallium_drivers; do
         case "x$driver" in
         xsvga)
-            gallium_check_st "svga/drm" "dri-vmwgfx" "xorg-vmwgfx"
+            gallium_check_st "svga/drm" "dri-vmwgfx" "xorg-vmwgfx" "xa-vmwgfx"
             ;;
         xi915)
             gallium_check_st "i915/drm" "dri-i915" "xorg-i915"
diff --git a/mesalib/src/glsl/Makefile b/mesalib/src/glsl/Makefile
index 2e379d84b..e0776c1b5 100644
--- a/mesalib/src/glsl/Makefile
+++ b/mesalib/src/glsl/Makefile
@@ -1,213 +1,213 @@
-
-#src/glsl/pp/Makefile
-
-TOP = ../..
-
-include $(TOP)/configs/current
-
-LIBNAME = glsl
-
-LIBGLCPP_SOURCES = \
-	glcpp/glcpp-lex.c \
-	glcpp/glcpp-parse.c \
-	glcpp/pp.c
-
-GLCPP_SOURCES = \
-	$(LIBGLCPP_SOURCES) \
-	ralloc.c \
-	glcpp/glcpp.c
-
-C_SOURCES = \
-	strtod.c \
-	ralloc.c \
-	$(LIBGLCPP_SOURCES)
-
-CXX_SOURCES = \
-	ast_expr.cpp \
-	ast_function.cpp \
-	ast_to_hir.cpp \
-	ast_type.cpp \
-	glsl_lexer.cpp \
-	glsl_parser.cpp \
-	glsl_parser_extras.cpp \
-	glsl_types.cpp \
-	glsl_symbol_table.cpp \
-	hir_field_selection.cpp \
-	ir_basic_block.cpp \
-	ir_clone.cpp \
-	ir_constant_expression.cpp \
-	ir.cpp \
-	ir_expression_flattening.cpp \
-	ir_function_can_inline.cpp \
-	ir_function.cpp \
-	ir_hierarchical_visitor.cpp \
-	ir_hv_accept.cpp \
-	ir_import_prototypes.cpp \
-	ir_print_visitor.cpp \
-	ir_reader.cpp \
-	ir_rvalue_visitor.cpp \
-	ir_set_program_inouts.cpp \
-	ir_validate.cpp \
-	ir_variable.cpp \
-	ir_variable_refcount.cpp \
-	linker.cpp \
-	link_functions.cpp \
-	loop_analysis.cpp \
-	loop_controls.cpp \
-	loop_unroll.cpp \
-	lower_discard.cpp \
-	lower_if_to_cond_assign.cpp \
-	lower_instructions.cpp \
-	lower_jumps.cpp \
-	lower_mat_op_to_vec.cpp \
-	lower_noise.cpp \
-	lower_texture_projection.cpp \
-	lower_variable_index_to_cond_assign.cpp \
-	lower_vec_index_to_cond_assign.cpp \
-	lower_vec_index_to_swizzle.cpp \
-	lower_vector.cpp \
-	opt_algebraic.cpp \
-	opt_constant_folding.cpp \
-	opt_constant_propagation.cpp \
-	opt_constant_variable.cpp \
-	opt_copy_propagation.cpp \
-	opt_copy_propagation_elements.cpp \
-	opt_dead_code.cpp \
-	opt_dead_code_local.cpp \
-	opt_dead_functions.cpp \
-	opt_discard_simplification.cpp \
-	opt_function_inlining.cpp \
-	opt_if_simplification.cpp \
-	opt_noop_swizzle.cpp \
-	opt_redundant_jumps.cpp \
-	opt_structure_splitting.cpp \
-	opt_swizzle_swizzle.cpp \
-	opt_tree_grafting.cpp \
-	s_expression.cpp
-
-LIBS = \
-	$(TOP)/src/glsl/libglsl.a
-
-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)
-
-DRICORE_OBJ_DIR = obj-visible
-OBJECTS_DRICORE = $(addprefix $(DRICORE_OBJ_DIR)/,$(OBJECTS))
-
-INCLUDES = \
-	-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) $(DRICORE_GLSL_LIBS)
-
-$(TOP)/$(LIB_DIR)/libglsl.so: $(OBJECTS_DRICORE) builtin_function.o Makefile $(TOP)/src/glsl/Makefile.template
-	$(MKLIB) -o $@ -linker '$(CXX)' -ldflags '$(LDFLAGS)' \
-		-cplusplus -noprefix \
-		-install $(TOP)/$(LIB_DIR) -id $(INSTALL_LIB_DIR)/$@.dylib \
-		$(OBJECTS_DRICORE) builtin_function.o
-
-lib$(LIBNAME).a: $(OBJECTS) builtin_function.o Makefile $(TOP)/src/glsl/Makefile.template
-	$(MKLIB) -cplusplus -o $(LIBNAME) -static $(OBJECTS) builtin_function.o
-
-depend: $(ALL_SOURCES) Makefile
-	rm -f depend
-	touch depend
-	$(MKDEP) $(MKDEP_OPTIONS) $(INCLUDES) $(ALL_SOURCES) 2> /dev/null
-
-# Remove .o and backup files
-clean: clean-dricore
-	rm -f $(GLCPP_OBJECTS) $(GLSL2_OBJECTS) $(OBJECTS) lib$(LIBNAME).a depend depend.bak builtin_function.cpp builtin_function.o builtin_stubs.o builtin_compiler
-	-rm -f $(APPS)
-
-clean-dricore:
-	-rm -f $(DRICORE_OBJ_DIR) $(TOP)/$(LIB_DIR)/libglsl.so libglsl.so
-
-ifneq (,$(DRICORE_GLSL_LIBS))
-DRICORE_INSTALL_TARGET = install-dricore
-endif
-
-# Dummy target
-install: $(DRICORE_INSTALL_TARGET)
-	@echo -n ""
-
-install-dricore: default
-	$(INSTALL) -d $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)
-	$(INSTALL) -m 755 $(DRICORE_GLSL_LIBS) $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)
-
-##### RULES #####
-
-glsl_compiler: $(GLSL2_OBJECTS) libglsl.a builtin_stubs.o
-	$(APP_CXX) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $(GLSL2_OBJECTS) builtin_stubs.o $(LIBS) -o $@
-
-glcpp: glcpp/glcpp
-glcpp/glcpp: $(GLCPP_OBJECTS)
-	$(APP_CC) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $(GLCPP_OBJECTS) -o $@
-
-.cpp.o:
-	$(CXX) -c $(INCLUDES) $(CXXFLAGS) $(DEFINES) $< -o $@
-
-.c.o:
-	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
-
-$(DRICORE_OBJ_DIR)/%.o : %.cpp
-	@mkdir -p $(dir $@)
-	$(CXX) -c $(INCLUDES) $(DRI_CXXFLAGS) $(DEFINES) $< -o $@
-
-$(DRICORE_OBJ_DIR)/%.o : %.c
-	@mkdir -p $(dir $@)
-	$(CC) -c $(INCLUDES) $(DRI_CFLAGS) $(DEFINES) $< -o $@
-
-glsl_lexer.cpp: glsl_lexer.ll
-	$(FLEX) --nounistd -o$@  $<
-
-glsl_parser.cpp: glsl_parser.yy
-	$(BISON) -v -o "$@" -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 $<
-
-builtin_compiler: $(GLSL2_OBJECTS) $(OBJECTS) builtin_stubs.o
-	$(APP_CXX) $(INCLUDES) $(CXXFLAGS) $(LDFLAGS) $(OBJECTS) $(GLSL2_OBJECTS) builtin_stubs.o -o $@
-
-builtin_function.cpp: builtins/profiles/* builtins/ir/* builtins/tools/generate_builtins.py builtins/tools/texture_builtins.py builtin_compiler
-	@echo Regenerating builtin_function.cpp...
-	$(PYTHON2) $(PYTHON_FLAGS) builtins/tools/generate_builtins.py ./builtin_compiler > builtin_function.cpp || rm -f builtin_function.cpp
-
--include depend
+
+#src/glsl/pp/Makefile
+
+TOP = ../..
+
+include $(TOP)/configs/current
+
+LIBNAME = glsl
+
+LIBGLCPP_SOURCES = \
+	glcpp/glcpp-lex.c \
+	glcpp/glcpp-parse.c \
+	glcpp/pp.c
+
+GLCPP_SOURCES = \
+	$(LIBGLCPP_SOURCES) \
+	ralloc.c \
+	glcpp/glcpp.c
+
+C_SOURCES = \
+	strtod.c \
+	ralloc.c \
+	$(LIBGLCPP_SOURCES)
+
+CXX_SOURCES = \
+	ast_expr.cpp \
+	ast_function.cpp \
+	ast_to_hir.cpp \
+	ast_type.cpp \
+	glsl_lexer.cpp \
+	glsl_parser.cpp \
+	glsl_parser_extras.cpp \
+	glsl_types.cpp \
+	glsl_symbol_table.cpp \
+	hir_field_selection.cpp \
+	ir_basic_block.cpp \
+	ir_clone.cpp \
+	ir_constant_expression.cpp \
+	ir.cpp \
+	ir_expression_flattening.cpp \
+	ir_function_can_inline.cpp \
+	ir_function.cpp \
+	ir_hierarchical_visitor.cpp \
+	ir_hv_accept.cpp \
+	ir_import_prototypes.cpp \
+	ir_print_visitor.cpp \
+	ir_reader.cpp \
+	ir_rvalue_visitor.cpp \
+	ir_set_program_inouts.cpp \
+	ir_validate.cpp \
+	ir_variable.cpp \
+	ir_variable_refcount.cpp \
+	linker.cpp \
+	link_functions.cpp \
+	loop_analysis.cpp \
+	loop_controls.cpp \
+	loop_unroll.cpp \
+	lower_discard.cpp \
+	lower_if_to_cond_assign.cpp \
+	lower_instructions.cpp \
+	lower_jumps.cpp \
+	lower_mat_op_to_vec.cpp \
+	lower_noise.cpp \
+	lower_texture_projection.cpp \
+	lower_variable_index_to_cond_assign.cpp \
+	lower_vec_index_to_cond_assign.cpp \
+	lower_vec_index_to_swizzle.cpp \
+	lower_vector.cpp \
+	opt_algebraic.cpp \
+	opt_constant_folding.cpp \
+	opt_constant_propagation.cpp \
+	opt_constant_variable.cpp \
+	opt_copy_propagation.cpp \
+	opt_copy_propagation_elements.cpp \
+	opt_dead_code.cpp \
+	opt_dead_code_local.cpp \
+	opt_dead_functions.cpp \
+	opt_discard_simplification.cpp \
+	opt_function_inlining.cpp \
+	opt_if_simplification.cpp \
+	opt_noop_swizzle.cpp \
+	opt_redundant_jumps.cpp \
+	opt_structure_splitting.cpp \
+	opt_swizzle_swizzle.cpp \
+	opt_tree_grafting.cpp \
+	s_expression.cpp
+
+LIBS = \
+	$(TOP)/src/glsl/libglsl.a
+
+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)
+
+DRICORE_OBJ_DIR = obj-visible
+OBJECTS_DRICORE = $(addprefix $(DRICORE_OBJ_DIR)/,$(OBJECTS))
+
+INCLUDES = \
+	-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) $(DRICORE_GLSL_LIBS)
+
+$(TOP)/$(LIB_DIR)/libglsl.so: $(OBJECTS_DRICORE) builtin_function.o Makefile $(TOP)/src/glsl/Makefile.template
+	$(MKLIB) -o $@ -linker '$(CXX)' -ldflags '$(LDFLAGS)' \
+		-cplusplus -noprefix \
+		-install $(TOP)/$(LIB_DIR) -id $(INSTALL_LIB_DIR)/$@.dylib \
+		$(OBJECTS_DRICORE) builtin_function.o
+
+lib$(LIBNAME).a: $(OBJECTS) builtin_function.o Makefile $(TOP)/src/glsl/Makefile.template
+	$(MKLIB) -cplusplus -o $(LIBNAME) -static $(OBJECTS) builtin_function.o
+
+depend: $(ALL_SOURCES) Makefile
+	rm -f depend
+	touch depend
+	$(MKDEP) $(MKDEP_OPTIONS) $(INCLUDES) $(ALL_SOURCES) 2> /dev/null
+
+# Remove .o and backup files
+clean: clean-dricore
+	rm -f $(GLCPP_OBJECTS) $(GLSL2_OBJECTS) $(OBJECTS) lib$(LIBNAME).a depend depend.bak builtin_function.cpp builtin_function.o builtin_stubs.o builtin_compiler
+	-rm -f $(APPS)
+
+clean-dricore:
+	-rm -f $(OBJECTS_DRICORE) $(TOP)/$(LIB_DIR)/libglsl.so libglsl.so
+
+ifneq (,$(DRICORE_GLSL_LIBS))
+DRICORE_INSTALL_TARGET = install-dricore
+endif
+
+# Dummy target
+install: $(DRICORE_INSTALL_TARGET)
+	@echo -n ""
+
+install-dricore: default
+	$(INSTALL) -d $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)
+	$(INSTALL) -m 755 $(DRICORE_GLSL_LIBS) $(DESTDIR)$(DRI_DRIVER_INSTALL_DIR)
+
+##### RULES #####
+
+glsl_compiler: $(GLSL2_OBJECTS) libglsl.a builtin_stubs.o
+	$(APP_CXX) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $(GLSL2_OBJECTS) builtin_stubs.o $(LIBS) -o $@
+
+glcpp: glcpp/glcpp
+glcpp/glcpp: $(GLCPP_OBJECTS)
+	$(APP_CC) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $(GLCPP_OBJECTS) -o $@
+
+.cpp.o:
+	$(CXX) -c $(INCLUDES) $(CXXFLAGS) $(DEFINES) $< -o $@
+
+.c.o:
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+$(DRICORE_OBJ_DIR)/%.o : %.cpp
+	@mkdir -p $(dir $@)
+	$(CXX) -c $(INCLUDES) $(DRI_CXXFLAGS) $(DEFINES) $< -o $@
+
+$(DRICORE_OBJ_DIR)/%.o : %.c
+	@mkdir -p $(dir $@)
+	$(CC) -c $(INCLUDES) $(DRI_CFLAGS) $(DEFINES) $< -o $@
+
+glsl_lexer.cpp: glsl_lexer.ll
+	$(FLEX) --nounistd -o$@  $<
+
+glsl_parser.cpp: glsl_parser.yy
+	$(BISON) -v -o "$@" -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 $<
+
+builtin_compiler: $(GLSL2_OBJECTS) $(OBJECTS) builtin_stubs.o
+	$(APP_CXX) $(INCLUDES) $(CXXFLAGS) $(LDFLAGS) $(OBJECTS) $(GLSL2_OBJECTS) builtin_stubs.o -o $@
+
+builtin_function.cpp: builtins/profiles/* builtins/ir/* builtins/tools/generate_builtins.py builtins/tools/texture_builtins.py builtin_compiler
+	@echo Regenerating builtin_function.cpp...
+	$(PYTHON2) $(PYTHON_FLAGS) builtins/tools/generate_builtins.py ./builtin_compiler > builtin_function.cpp || rm -f builtin_function.cpp
+
+-include depend
diff --git a/mesalib/src/glsl/ir_function.cpp b/mesalib/src/glsl/ir_function.cpp
index ef8d4fcfc..1255072a5 100644
--- a/mesalib/src/glsl/ir_function.cpp
+++ b/mesalib/src/glsl/ir_function.cpp
@@ -165,7 +165,7 @@ ir_function_signature *
 ir_function::matching_signature(const exec_list *actual_parameters)
 {
    ir_function_signature *match = NULL;
-   int matched_score;
+   int matched_score = 0;
 
    foreach_iter(exec_list_iterator, iter, signatures) {
       ir_function_signature *const sig =
diff --git a/mesalib/src/glsl/ir_print_visitor.cpp b/mesalib/src/glsl/ir_print_visitor.cpp
index 5b5409daa..518910bd1 100644
--- a/mesalib/src/glsl/ir_print_visitor.cpp
+++ b/mesalib/src/glsl/ir_print_visitor.cpp
@@ -96,6 +96,16 @@ void ir_print_visitor::indent(void)
 const char *
 ir_print_visitor::unique_name(ir_variable *var)
 {
+   /* var->name can be NULL in function prototypes when a type is given for a
+    * parameter but no name is given.  In that case, just return an empty
+    * string.  Don't worry about tracking the generated name in the printable
+    * names hash because this is the only scope where it can ever appear.
+    */
+   if (var->name == NULL) {
+      static unsigned arg = 1;
+      return ralloc_asprintf(this->mem_ctx, "parameter@%u", arg++);
+   }
+
    /* Do we already have a name for this variable? */
    const char *name = (const char *) hash_table_find(this->printable_names, var);
    if (name != NULL)
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index b6479e7a3..265da84e5 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -1194,16 +1194,43 @@ find_available_slots(unsigned used_mask, unsigned needed_count)
 }
 
 
+/**
+ * Assign locations for either VS inputs for FS outputs
+ *
+ * \param prog          Shader program whose variables need locations assigned
+ * \param target_index  Selector for the program target to receive location
+ *                      assignmnets.  Must be either \c MESA_SHADER_VERTEX or
+ *                      \c MESA_SHADER_FRAGMENT.
+ * \param max_index     Maximum number of generic locations.  This corresponds
+ *                      to either the maximum number of draw buffers or the
+ *                      maximum number of generic attributes.
+ *
+ * \return
+ * If locations are successfully assigned, true is returned.  Otherwise an
+ * error is emitted to the shader link log and false is returned.
+ *
+ * \bug
+ * Locations set via \c glBindFragDataLocation are not currently supported.
+ * Only locations assigned automatically by the linker, explicitly set by a
+ * layout qualifier, or explicitly set by a built-in variable (e.g., \c
+ * gl_FragColor) are supported for fragment shaders.
+ */
 bool
-assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index)
+assign_attribute_or_color_locations(gl_shader_program *prog,
+				    unsigned target_index,
+				    unsigned max_index)
 {
-   /* Mark invalid attribute locations as being used.
+   /* Mark invalid locations as being used.
     */
-   unsigned used_locations = (max_attribute_index >= 32)
-      ? ~0 : ~((1 << max_attribute_index) - 1);
+   unsigned used_locations = (max_index >= 32)
+      ? ~0 : ~((1 << max_index) - 1);
 
-   gl_shader *const sh = prog->_LinkedShaders[0];
-   assert(sh->Type == GL_VERTEX_SHADER);
+   assert((target_index == MESA_SHADER_VERTEX)
+	  || (target_index == MESA_SHADER_FRAGMENT));
+
+   gl_shader *const sh = prog->_LinkedShaders[target_index];
+   if (sh == NULL)
+      return true;
 
    /* Operate in a total of four passes.
     *
@@ -1220,9 +1247,16 @@ assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index
     * 4. Assign locations to any inputs without assigned locations.
     */
 
-   invalidate_variable_locations(sh, ir_var_in, VERT_ATTRIB_GENERIC0);
+   const int generic_base = (target_index == MESA_SHADER_VERTEX)
+     ? VERT_ATTRIB_GENERIC0 : FRAG_RESULT_DATA0;
+
+   const enum ir_variable_mode direction =
+      (target_index == MESA_SHADER_VERTEX) ? ir_var_in : ir_var_out;
+
 
-   if (prog->Attributes != NULL) {
+   invalidate_variable_locations(sh, direction, generic_base);
+
+   if ((target_index == MESA_SHADER_VERTEX) && (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);
@@ -1309,15 +1343,15 @@ assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index
    foreach_list(node, sh->ir) {
       ir_variable *const var = ((ir_instruction *) node)->as_variable();
 
-      if ((var == NULL) || (var->mode != ir_var_in))
+      if ((var == NULL) || (var->mode != direction))
 	 continue;
 
       if (var->explicit_location) {
 	 const unsigned slots = count_attribute_slots(var->type);
 	 const unsigned use_mask = (1 << slots) - 1;
-	 const int attr = var->location - VERT_ATTRIB_GENERIC0;
+	 const int attr = var->location - generic_base;
 
-	 if ((var->location >= (int)(max_attribute_index + VERT_ATTRIB_GENERIC0))
+	 if ((var->location >= (int)(max_index + generic_base))
 	     || (var->location < 0)) {
 	    linker_error_printf(prog,
 				"invalid explicit location %d specified for "
@@ -1325,7 +1359,7 @@ assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index
 				(var->location < 0) ? var->location : attr,
 				var->name);
 	    return false;
-	 } else if (var->location >= VERT_ATTRIB_GENERIC0) {
+	 } else if (var->location >= generic_base) {
 	    used_locations |= (use_mask << attr);
 	 }
       }
@@ -1349,14 +1383,16 @@ assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index
 
    qsort(to_assign, num_attr, sizeof(to_assign[0]), temp_attr::compare);
 
-   /* VERT_ATTRIB_GENERIC0 is a pseudo-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);
+   if (target_index == MESA_SHADER_VERTEX) {
+      /* VERT_ATTRIB_GENERIC0 is a pseudo-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
@@ -1367,14 +1403,17 @@ assign_attribute_locations(gl_shader_program *prog, unsigned max_attribute_index
       int location = find_available_slots(used_locations, to_assign[i].slots);
 
       if (location < 0) {
+	 const char *const string = (target_index == MESA_SHADER_VERTEX)
+	    ? "vertex shader input" : "fragment shader output";
+
 	 linker_error_printf(prog,
 			     "insufficient contiguous attribute locations "
-			     "available for vertex shader input `%s'",
-			     to_assign[i].var->name);
+			     "available for %s `%s'",
+			     string, to_assign[i].var->name);
 	 return false;
       }
 
-      to_assign[i].var->location = VERT_ATTRIB_GENERIC0 + location;
+      to_assign[i].var->location = generic_base + location;
       used_locations |= (use_mask << location);
    }
 
@@ -1671,16 +1710,19 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
 
    assign_uniform_locations(prog);
 
-   if (prog->_LinkedShaders[MESA_SHADER_VERTEX] != NULL) {
-      /* 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)) {
-	 prog->LinkStatus = false;
-	 goto done;
-      }
+   /* 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_or_color_locations(prog, MESA_SHADER_VERTEX, 16)) {
+      prog->LinkStatus = false;
+      goto done;
+   }
+
+   if (!assign_attribute_or_color_locations(prog, MESA_SHADER_FRAGMENT, ctx->Const.MaxDrawBuffers)) {
+      prog->LinkStatus = false;
+      goto done;
    }
 
    unsigned prev;
diff --git a/mesalib/src/glsl/opt_constant_propagation.cpp b/mesalib/src/glsl/opt_constant_propagation.cpp
index 4425f4211..af77e4906 100644
--- a/mesalib/src/glsl/opt_constant_propagation.cpp
+++ b/mesalib/src/glsl/opt_constant_propagation.cpp
@@ -51,11 +51,23 @@ public:
       this->var = var;
       this->write_mask = write_mask;
       this->constant = constant;
+      this->initial_values = write_mask;
+   }
+
+   acp_entry(const acp_entry *src)
+   {
+      this->var = src->var;
+      this->write_mask = src->write_mask;
+      this->constant = src->constant;
+      this->initial_values = src->initial_values;
    }
 
    ir_variable *var;
    ir_constant *constant;
    unsigned write_mask;
+
+   /** Mask of values initially available in the constant. */
+   unsigned initial_values;
 };
 
 
@@ -172,7 +184,7 @@ ir_constant_propagation_visitor::handle_rvalue(ir_rvalue **rvalue)
       for (int j = 0; j < 4; j++) {
 	 if (j == channel)
 	    break;
-	 if (found->write_mask & (1 << j))
+	 if (found->initial_values & (1 << j))
 	    rhs_channel++;
       }
 
@@ -285,8 +297,7 @@ ir_constant_propagation_visitor::handle_if_block(exec_list *instructions)
    /* 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));
+      this->acp->push_tail(new(this->mem_ctx) acp_entry(a));
    }
 
    visit_list_elements(this, instructions);
diff --git a/mesalib/src/mesa/main/arbprogram.c b/mesalib/src/mesa/main/arbprogram.c
index 26d781954..b83369d9e 100644
--- a/mesalib/src/mesa/main/arbprogram.c
+++ b/mesalib/src/mesa/main/arbprogram.c
@@ -269,6 +269,71 @@ _mesa_IsProgramARB(GLuint id)
       return GL_FALSE;
 }
 
+static GLboolean
+get_local_param_pointer(struct gl_context *ctx, const char *func,
+			GLenum target, GLuint index, GLfloat **param)
+{
+   struct gl_program *prog;
+   GLuint maxParams;
+
+   if (target == GL_VERTEX_PROGRAM_ARB
+       && ctx->Extensions.ARB_vertex_program) {
+      prog = &(ctx->VertexProgram.Current->Base);
+      maxParams = ctx->Const.VertexProgram.MaxLocalParams;
+   }
+   else if (target == GL_FRAGMENT_PROGRAM_ARB
+            && ctx->Extensions.ARB_fragment_program) {
+      prog = &(ctx->FragmentProgram.Current->Base);
+      maxParams = ctx->Const.FragmentProgram.MaxLocalParams;
+   }
+   else if (target == GL_FRAGMENT_PROGRAM_NV
+            && ctx->Extensions.NV_fragment_program) {
+      prog = &(ctx->FragmentProgram.Current->Base);
+      maxParams = MAX_NV_FRAGMENT_PROGRAM_PARAMS;
+   }
+   else {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "%s(target)", func);
+      return GL_FALSE;
+   }
+
+   if (index >= maxParams) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
+      return GL_FALSE;
+   }
+
+   *param = prog->LocalParams[index];
+   return GL_TRUE;
+}
+
+
+static GLboolean
+get_env_param_pointer(struct gl_context *ctx, const char *func,
+		      GLenum target, GLuint index, GLfloat **param)
+{
+   if (target == GL_FRAGMENT_PROGRAM_ARB
+       && ctx->Extensions.ARB_fragment_program) {
+      if (index >= ctx->Const.FragmentProgram.MaxEnvParams) {
+         _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
+         return GL_FALSE;
+      }
+      *param = ctx->FragmentProgram.Parameters[index];
+      return GL_TRUE;
+   }
+   else if (target == GL_VERTEX_PROGRAM_ARB &&
+	    (ctx->Extensions.ARB_vertex_program ||
+	     ctx->Extensions.NV_vertex_program)) {
+      if (index >= ctx->Const.VertexProgram.MaxEnvParams) {
+         _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func);
+         return GL_FALSE;
+      }
+      *param = ctx->VertexProgram.Parameters[index];
+      return GL_TRUE;
+   } else {
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
+      return GL_FALSE;
+   }
+}
 
 void GLAPIENTRY
 _mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len,
@@ -383,30 +448,16 @@ void GLAPIENTRY
 _mesa_ProgramEnvParameter4fARB(GLenum target, GLuint index,
                                GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 {
+   GLfloat *param;
+
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
-   if (target == GL_FRAGMENT_PROGRAM_ARB
-       && ctx->Extensions.ARB_fragment_program) {
-      if (index >= ctx->Const.FragmentProgram.MaxEnvParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameter(index)");
-         return;
-      }
-      ASSIGN_4V(ctx->FragmentProgram.Parameters[index], x, y, z, w);
-   }
-   else if (target == GL_VERTEX_PROGRAM_ARB /* == GL_VERTEX_PROGRAM_NV */
-       && (ctx->Extensions.ARB_vertex_program || ctx->Extensions.NV_vertex_program)) {
-      if (index >= ctx->Const.VertexProgram.MaxEnvParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameter(index)");
-         return;
-      }
-      ASSIGN_4V(ctx->VertexProgram.Parameters[index], x, y, z, w);
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glProgramEnvParameter(target)");
-      return;
+   if (get_env_param_pointer(ctx, "glProgramEnvParameter",
+			     target, index, &param)) {
+      ASSIGN_4V(param, x, y, z, w);
    }
 }
 
@@ -422,32 +473,16 @@ void GLAPIENTRY
 _mesa_ProgramEnvParameter4fvARB(GLenum target, GLuint index,
                                 const GLfloat *params)
 {
+   GLfloat *param;
+
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
-   if (target == GL_FRAGMENT_PROGRAM_ARB
-       && ctx->Extensions.ARB_fragment_program) {
-      if (index >= ctx->Const.FragmentProgram.MaxEnvParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameter4fv(index)");
-         return;
-      }
-      memcpy(ctx->FragmentProgram.Parameters[index], params,
-             4 * sizeof(GLfloat));
-   }
-   else if (target == GL_VERTEX_PROGRAM_ARB /* == GL_VERTEX_PROGRAM_NV */
-       && (ctx->Extensions.ARB_vertex_program || ctx->Extensions.NV_vertex_program)) {
-      if (index >= ctx->Const.VertexProgram.MaxEnvParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameter4fv(index)");
-         return;
-      }
-      memcpy(ctx->VertexProgram.Parameters[index], params,
-             4 * sizeof(GLfloat));
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glProgramEnvParameter4fv(target)");
-      return;
+   if (get_env_param_pointer(ctx, "glProgramEnvParameter4fv",
+			      target, index, &param)) {
+      memcpy(param, params, 4 * sizeof(GLfloat));
    }
 }
 
@@ -496,14 +531,11 @@ _mesa_GetProgramEnvParameterdvARB(GLenum target, GLuint index,
                                   GLdouble *params)
 {
    GET_CURRENT_CONTEXT(ctx);
-   GLfloat fparams[4];
+   GLfloat *fparam;
 
-   _mesa_GetProgramEnvParameterfvARB(target, index, fparams);
-   if (ctx->ErrorValue == GL_NO_ERROR) {
-      params[0] = fparams[0];
-      params[1] = fparams[1];
-      params[2] = fparams[2];
-      params[3] = fparams[3];
+   if (get_env_param_pointer(ctx, "glGetProgramEnvParameterdv",
+			     target, index, &fparam)) {
+      COPY_4V(params, fparam);
    }
 }
 
@@ -512,29 +544,15 @@ void GLAPIENTRY
 _mesa_GetProgramEnvParameterfvARB(GLenum target, GLuint index, 
                                   GLfloat *params)
 {
+   GLfloat *param;
+
    GET_CURRENT_CONTEXT(ctx);
 
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (target == GL_FRAGMENT_PROGRAM_ARB
-       && ctx->Extensions.ARB_fragment_program) {
-      if (index >= ctx->Const.FragmentProgram.MaxEnvParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramEnvParameter(index)");
-         return;
-      }
-      COPY_4V(params, ctx->FragmentProgram.Parameters[index]);
-   }
-   else if (target == GL_VERTEX_PROGRAM_ARB
-       && ctx->Extensions.ARB_vertex_program) {
-      if (index >= ctx->Const.VertexProgram.MaxEnvParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramEnvParameter(index)");
-         return;
-      }
-      COPY_4V(params, ctx->VertexProgram.Parameters[index]);
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramEnvParameter(target)");
-      return;
+   if (get_env_param_pointer(ctx, "glGetProgramEnvParameterfv",
+			      target, index, &param)) {
+      COPY_4V(params, param);
    }
 }
 
@@ -547,39 +565,16 @@ _mesa_ProgramLocalParameter4fARB(GLenum target, GLuint index,
                                  GLfloat x, GLfloat y, GLfloat z, GLfloat w)
 {
    GET_CURRENT_CONTEXT(ctx);
-   struct gl_program *prog;
+   GLfloat *param;
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
 
-   if ((target == GL_FRAGMENT_PROGRAM_NV
-        && ctx->Extensions.NV_fragment_program) ||
-       (target == GL_FRAGMENT_PROGRAM_ARB
-        && ctx->Extensions.ARB_fragment_program)) {
-      if (index >= ctx->Const.FragmentProgram.MaxLocalParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameterARB");
-         return;
-      }
-      prog = &(ctx->FragmentProgram.Current->Base);
-   }
-   else if (target == GL_VERTEX_PROGRAM_ARB
-            && ctx->Extensions.ARB_vertex_program) {
-      if (index >= ctx->Const.VertexProgram.MaxLocalParams) {
-         _mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameterARB");
-         return;
-      }
-      prog = &(ctx->VertexProgram.Current->Base);
+   if (get_local_param_pointer(ctx, "glProgramLocalParameterARB",
+			       target, index, &param)) {
+      ASSERT(index < MAX_PROGRAM_LOCAL_PARAMS);
+      ASSIGN_4V(param, x, y, z, w);
    }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glProgramLocalParameterARB");
-      return;
-   }
-
-   ASSERT(index < MAX_PROGRAM_LOCAL_PARAMS);
-   prog->LocalParams[index][0] = x;
-   prog->LocalParams[index][1] = y;
-   prog->LocalParams[index][2] = z;
-   prog->LocalParams[index][3] = w;
 }
 
 
@@ -667,41 +662,14 @@ void GLAPIENTRY
 _mesa_GetProgramLocalParameterfvARB(GLenum target, GLuint index,
                                     GLfloat *params)
 {
-   const struct gl_program *prog;
-   GLuint maxParams;
+   GLfloat *param;
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (target == GL_VERTEX_PROGRAM_ARB
-       && ctx->Extensions.ARB_vertex_program) {
-      prog = &(ctx->VertexProgram.Current->Base);
-      maxParams = ctx->Const.VertexProgram.MaxLocalParams;
-   }
-   else if (target == GL_FRAGMENT_PROGRAM_ARB
-            && ctx->Extensions.ARB_fragment_program) {
-      prog = &(ctx->FragmentProgram.Current->Base);
-      maxParams = ctx->Const.FragmentProgram.MaxLocalParams;
-   }
-   else if (target == GL_FRAGMENT_PROGRAM_NV
-            && ctx->Extensions.NV_fragment_program) {
-      prog = &(ctx->FragmentProgram.Current->Base);
-      maxParams = MAX_NV_FRAGMENT_PROGRAM_PARAMS;
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetProgramLocalParameterARB(target)");
-      return;
-   }
-
-   if (index >= maxParams) {
-      _mesa_error(ctx, GL_INVALID_VALUE,
-                  "glGetProgramLocalParameterARB(index)");
-      return;
+   if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT",
+				target, index, &param)) {
+      COPY_4V(params, param);
    }
-
-   ASSERT(prog);
-   ASSERT(index < MAX_PROGRAM_LOCAL_PARAMS);
-   COPY_4V(params, prog->LocalParams[index]);
 }
 
 
@@ -712,12 +680,13 @@ void GLAPIENTRY
 _mesa_GetProgramLocalParameterdvARB(GLenum target, GLuint index,
                                     GLdouble *params)
 {
+   GLfloat *param;
    GET_CURRENT_CONTEXT(ctx);
-   GLfloat floatParams[4];
-   ASSIGN_4V(floatParams, 0.0F, 0.0F, 0.0F, 0.0F);
-   _mesa_GetProgramLocalParameterfvARB(target, index, floatParams);
-   if (ctx->ErrorValue == GL_NO_ERROR) {
-      COPY_4V(params, floatParams);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT",
+				target, index, &param)) {
+      COPY_4V(params, param);
    }
 }
 
diff --git a/mesalib/src/mesa/main/feedback.c b/mesalib/src/mesa/main/feedback.c
index 80565c62c..597ec1e3f 100644
--- a/mesalib/src/mesa/main/feedback.c
+++ b/mesalib/src/mesa/main/feedback.c
@@ -1,542 +1,542 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.5
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (C) 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, 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.
- */
-
-/**
- * \file feedback.c
- * Selection and feedback modes functions.
- */
-
-
-#include "glheader.h"
-#include "colormac.h"
-#include "context.h"
-#include "enums.h"
-#include "feedback.h"
-#include "macros.h"
-#include "mfeatures.h"
-#include "mtypes.h"
-#include "main/dispatch.h"
-
-
-#if FEATURE_feedback
-
-
-#define FB_3D		0x01
-#define FB_4D		0x02
-#define FB_COLOR	0x04
-#define FB_TEXTURE	0X08
-
-
-
-static void GLAPIENTRY
-_mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->RenderMode==GL_FEEDBACK) {
-      _mesa_error( ctx, GL_INVALID_OPERATION, "glFeedbackBuffer" );
-      return;
-   }
-   if (size<0) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(size<0)" );
-      return;
-   }
-   if (!buffer) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(buffer==NULL)" );
-      ctx->Feedback.BufferSize = 0;
-      return;
-   }
-
-   switch (type) {
-      case GL_2D:
-	 ctx->Feedback._Mask = 0;
-	 break;
-      case GL_3D:
-	 ctx->Feedback._Mask = FB_3D;
-	 break;
-      case GL_3D_COLOR:
-	 ctx->Feedback._Mask = (FB_3D | FB_COLOR);
-	 break;
-      case GL_3D_COLOR_TEXTURE:
-	 ctx->Feedback._Mask = (FB_3D | FB_COLOR | FB_TEXTURE);
-	 break;
-      case GL_4D_COLOR_TEXTURE:
-	 ctx->Feedback._Mask = (FB_3D | FB_4D | FB_COLOR | FB_TEXTURE);
-	 break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glFeedbackBuffer" );
-	 return;
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_RENDERMODE); /* Always flush */
-   ctx->Feedback.Type = type;
-   ctx->Feedback.BufferSize = size;
-   ctx->Feedback.Buffer = buffer;
-   ctx->Feedback.Count = 0;	              /* Becaues of this. */
-}
-
-
-static void GLAPIENTRY
-_mesa_PassThrough( GLfloat token )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->RenderMode==GL_FEEDBACK) {
-      FLUSH_VERTICES(ctx, 0);
-      _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_PASS_THROUGH_TOKEN );
-      _mesa_feedback_token( ctx, token );
-   }
-}
-
-
-/**
- * Put a vertex into the feedback buffer.
- */
-void
-_mesa_feedback_vertex(struct gl_context *ctx,
-                      const GLfloat win[4],
-                      const GLfloat color[4],
-                      const GLfloat texcoord[4])
-{
-   _mesa_feedback_token( ctx, win[0] );
-   _mesa_feedback_token( ctx, win[1] );
-   if (ctx->Feedback._Mask & FB_3D) {
-      _mesa_feedback_token( ctx, win[2] );
-   }
-   if (ctx->Feedback._Mask & FB_4D) {
-      _mesa_feedback_token( ctx, win[3] );
-   }
-   if (ctx->Feedback._Mask & FB_COLOR) {
-      _mesa_feedback_token( ctx, color[0] );
-      _mesa_feedback_token( ctx, color[1] );
-      _mesa_feedback_token( ctx, color[2] );
-      _mesa_feedback_token( ctx, color[3] );
-   }
-   if (ctx->Feedback._Mask & FB_TEXTURE) {
-      _mesa_feedback_token( ctx, texcoord[0] );
-      _mesa_feedback_token( ctx, texcoord[1] );
-      _mesa_feedback_token( ctx, texcoord[2] );
-      _mesa_feedback_token( ctx, texcoord[3] );
-   }
-}
-
-
-/**********************************************************************/
-/** \name Selection */
-/*@{*/
-
-/**
- * Establish a buffer for selection mode values.
- * 
- * \param size buffer size.
- * \param buffer buffer.
- *
- * \sa glSelectBuffer().
- * 
- * \note this function can't be put in a display list.
- * 
- * Verifies we're not in selection mode, flushes the vertices and initialize
- * the fields in __struct gl_contextRec::Select with the given buffer.
- */
-static void GLAPIENTRY
-_mesa_SelectBuffer( GLsizei size, GLuint *buffer )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->RenderMode==GL_SELECT) {
-      _mesa_error( ctx, GL_INVALID_OPERATION, "glSelectBuffer" );
-      return;			/* KW: added return */
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 
-   ctx->Select.Buffer = buffer;
-   ctx->Select.BufferSize = size;
-   ctx->Select.BufferCount = 0;
-   ctx->Select.HitFlag = GL_FALSE;
-   ctx->Select.HitMinZ = 1.0;
-   ctx->Select.HitMaxZ = 0.0;
-}
-
-
-/**
- * Write a value of a record into the selection buffer.
- * 
- * \param ctx GL context.
- * \param value value.
- *
- * Verifies there is free space in the buffer to write the value and
- * increments the pointer.
- */
-static INLINE void
-write_record(struct gl_context *ctx, GLuint value)
-{
-   if (ctx->Select.BufferCount < ctx->Select.BufferSize) {
-      ctx->Select.Buffer[ctx->Select.BufferCount] = value;
-   }
-   ctx->Select.BufferCount++;
-}
-
-
-/**
- * Update the hit flag and the maximum and minimum depth values.
- *
- * \param ctx GL context.
- * \param z depth.
- *
- * Sets gl_selection::HitFlag and updates gl_selection::HitMinZ and
- * gl_selection::HitMaxZ.
- */
-void
-_mesa_update_hitflag(struct gl_context *ctx, GLfloat z)
-{
-   ctx->Select.HitFlag = GL_TRUE;
-   if (z < ctx->Select.HitMinZ) {
-      ctx->Select.HitMinZ = z;
-   }
-   if (z > ctx->Select.HitMaxZ) {
-      ctx->Select.HitMaxZ = z;
-   }
-}
-
-
-/**
- * Write the hit record.
- *
- * \param ctx GL context.
- *
- * Write the hit record, i.e., the number of names in the stack, the minimum and
- * maximum depth values and the number of names in the name stack at the time
- * of the event. Resets the hit flag. 
- *
- * \sa gl_selection.
- */
-static void
-write_hit_record(struct gl_context *ctx)
-{
-   GLuint i;
-   GLuint zmin, zmax, zscale = (~0u);
-
-   /* HitMinZ and HitMaxZ are in [0,1].  Multiply these values by */
-   /* 2^32-1 and round to nearest unsigned integer. */
-
-   assert( ctx != NULL ); /* this line magically fixes a SunOS 5.x/gcc bug */
-   zmin = (GLuint) ((GLfloat) zscale * ctx->Select.HitMinZ);
-   zmax = (GLuint) ((GLfloat) zscale * ctx->Select.HitMaxZ);
-
-   write_record( ctx, ctx->Select.NameStackDepth );
-   write_record( ctx, zmin );
-   write_record( ctx, zmax );
-   for (i = 0; i < ctx->Select.NameStackDepth; i++) {
-      write_record( ctx, ctx->Select.NameStack[i] );
-   }
-
-   ctx->Select.Hits++;
-   ctx->Select.HitFlag = GL_FALSE;
-   ctx->Select.HitMinZ = 1.0;
-   ctx->Select.HitMaxZ = -1.0;
-}
-
-
-/**
- * Initialize the name stack.
- *
- * Verifies we are in select mode and resets the name stack depth and resets
- * the hit record data in gl_selection. Marks new render mode in
- * __struct gl_contextRec::NewState.
- */
-static void GLAPIENTRY
-_mesa_InitNames( void )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   /* Record the hit before the HitFlag is wiped out again. */
-   if (ctx->RenderMode == GL_SELECT) {
-      if (ctx->Select.HitFlag) {
-         write_hit_record( ctx );
-      }
-   }
-   ctx->Select.NameStackDepth = 0;
-   ctx->Select.HitFlag = GL_FALSE;
-   ctx->Select.HitMinZ = 1.0;
-   ctx->Select.HitMaxZ = 0.0;
-   ctx->NewState |= _NEW_RENDERMODE;
-}
-
-
-/**
- * Load the top-most name of the name stack.
- *
- * \param name name.
- *
- * Verifies we are in selection mode and that the name stack is not empty.
- * Flushes vertices. If there is a hit flag writes it (via write_hit_record()),
- * and replace the top-most name in the stack.
- *
- * sa __struct gl_contextRec::Select.
- */
-static void GLAPIENTRY
-_mesa_LoadName( GLuint name )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->RenderMode != GL_SELECT) {
-      return;
-   }
-   if (ctx->Select.NameStackDepth == 0) {
-      _mesa_error( ctx, GL_INVALID_OPERATION, "glLoadName" );
-      return;
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
-
-   if (ctx->Select.HitFlag) {
-      write_hit_record( ctx );
-   }
-   if (ctx->Select.NameStackDepth < MAX_NAME_STACK_DEPTH) {
-      ctx->Select.NameStack[ctx->Select.NameStackDepth-1] = name;
-   }
-   else {
-      ctx->Select.NameStack[MAX_NAME_STACK_DEPTH-1] = name;
-   }
-}
-
-
-/**
- * Push a name into the name stack.
- *
- * \param name name.
- *
- * Verifies we are in selection mode and that the name stack is not full.
- * Flushes vertices. If there is a hit flag writes it (via write_hit_record()),
- * and adds the name to the top of the name stack.
- *
- * sa __struct gl_contextRec::Select.
- */
-static void GLAPIENTRY
-_mesa_PushName( GLuint name )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->RenderMode != GL_SELECT) {
-      return;
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
-   if (ctx->Select.HitFlag) {
-      write_hit_record( ctx );
-   }
-   if (ctx->Select.NameStackDepth >= MAX_NAME_STACK_DEPTH) {
-      _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushName" );
-   }
-   else
-      ctx->Select.NameStack[ctx->Select.NameStackDepth++] = name;
-}
-
-
-/**
- * Pop a name into the name stack.
- *
- * Verifies we are in selection mode and that the name stack is not empty.
- * Flushes vertices. If there is a hit flag writes it (via write_hit_record()),
- * and removes top-most name in the name stack.
- *
- * sa __struct gl_contextRec::Select.
- */
-static void GLAPIENTRY
-_mesa_PopName( void )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->RenderMode != GL_SELECT) {
-      return;
-   }
-
-   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
-   if (ctx->Select.HitFlag) {
-      write_hit_record( ctx );
-   }
-   if (ctx->Select.NameStackDepth == 0) {
-      _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopName" );
-   }
-   else
-      ctx->Select.NameStackDepth--;
-}
-
-/*@}*/
-
-
-/**********************************************************************/
-/** \name Render Mode */
-/*@{*/
-
-/**
- * Set rasterization mode.
- *
- * \param mode rasterization mode.
- *
- * \note this function can't be put in a display list.
- *
- * \sa glRenderMode().
- * 
- * Flushes the vertices and do the necessary cleanup according to the previous
- * rasterization mode, such as writing the hit record or resent the select
- * buffer index when exiting the select mode. Updates
- * __struct gl_contextRec::RenderMode and notifies the driver via the
- * dd_function_table::RenderMode callback.
- */
-static GLint GLAPIENTRY
-_mesa_RenderMode( GLenum mode )
-{
-   GET_CURRENT_CONTEXT(ctx);
-   GLint result;
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
-
-   if (MESA_VERBOSE & VERBOSE_API)
-      _mesa_debug(ctx, "glRenderMode %s\n", _mesa_lookup_enum_by_nr(mode));
-
-   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
-
-   switch (ctx->RenderMode) {
-      case GL_RENDER:
-	 result = 0;
-	 break;
-      case GL_SELECT:
-	 if (ctx->Select.HitFlag) {
-	    write_hit_record( ctx );
-	 }
-	 if (ctx->Select.BufferCount > ctx->Select.BufferSize) {
-	    /* overflow */
-#ifdef DEBUG
-            _mesa_warning(ctx, "Feedback buffer overflow");
-#endif
-	    result = -1;
-	 }
-	 else {
-	    result = ctx->Select.Hits;
-	 }
-	 ctx->Select.BufferCount = 0;
-	 ctx->Select.Hits = 0;
-	 ctx->Select.NameStackDepth = 0;
-	 break;
-#if _HAVE_FULL_GL
-      case GL_FEEDBACK:
-	 if (ctx->Feedback.Count > ctx->Feedback.BufferSize) {
-	    /* overflow */
-	    result = -1;
-	 }
-	 else {
-	    result = ctx->Feedback.Count;
-	 }
-	 ctx->Feedback.Count = 0;
-	 break;
-#endif
-      default:
-	 _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" );
-	 return 0;
-   }
-
-   switch (mode) {
-      case GL_RENDER:
-         break;
-      case GL_SELECT:
-	 if (ctx->Select.BufferSize==0) {
-	    /* haven't called glSelectBuffer yet */
-	    _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" );
-	 }
-	 break;
-#if _HAVE_FULL_GL
-      case GL_FEEDBACK:
-	 if (ctx->Feedback.BufferSize==0) {
-	    /* haven't called glFeedbackBuffer yet */
-	    _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" );
-	 }
-	 break;
-#endif
-      default:
-	 _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" );
-	 return 0;
-   }
-
-   ctx->RenderMode = mode;
-   if (ctx->Driver.RenderMode)
-      ctx->Driver.RenderMode( ctx, mode );
-
-   return result;
-}
-
-/*@}*/
-
-
-void
-_mesa_init_feedback_dispatch(struct _glapi_table *disp)
-{
-   SET_InitNames(disp, _mesa_InitNames);
-   SET_FeedbackBuffer(disp, _mesa_FeedbackBuffer);
-   SET_LoadName(disp, _mesa_LoadName);
-   SET_PassThrough(disp, _mesa_PassThrough);
-   SET_PopName(disp, _mesa_PopName);
-   SET_PushName(disp, _mesa_PushName);
-   SET_SelectBuffer(disp, _mesa_SelectBuffer);
-   SET_RenderMode(disp, _mesa_RenderMode);
-}
-
-
-#endif /* FEATURE_feedback */
-
-
-/**********************************************************************/
-/** \name Initialization */
-/*@{*/
-
-/**
- * Initialize context feedback data.
- */
-void _mesa_init_feedback( struct gl_context * ctx )
-{
-   /* Feedback */
-   ctx->Feedback.Type = GL_2D;   /* TODO: verify */
-   ctx->Feedback.Buffer = NULL;
-   ctx->Feedback.BufferSize = 0;
-   ctx->Feedback.Count = 0;
-
-   /* Selection/picking */
-   ctx->Select.Buffer = NULL;
-   ctx->Select.BufferSize = 0;
-   ctx->Select.BufferCount = 0;
-   ctx->Select.Hits = 0;
-   ctx->Select.NameStackDepth = 0;
-
-   /* Miscellaneous */
-   ctx->RenderMode = GL_RENDER;
-}
-
-/*@}*/
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.5
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 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, 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.
+ */
+
+/**
+ * \file feedback.c
+ * Selection and feedback modes functions.
+ */
+
+
+#include "glheader.h"
+#include "colormac.h"
+#include "context.h"
+#include "enums.h"
+#include "feedback.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "main/dispatch.h"
+
+
+#if FEATURE_feedback
+
+
+#define FB_3D		0x01
+#define FB_4D		0x02
+#define FB_COLOR	0x04
+#define FB_TEXTURE	0X08
+
+
+
+static void GLAPIENTRY
+_mesa_FeedbackBuffer( GLsizei size, GLenum type, GLfloat *buffer )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->RenderMode==GL_FEEDBACK) {
+      _mesa_error( ctx, GL_INVALID_OPERATION, "glFeedbackBuffer" );
+      return;
+   }
+   if (size<0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(size<0)" );
+      return;
+   }
+   if (!buffer && size > 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glFeedbackBuffer(buffer==NULL)" );
+      ctx->Feedback.BufferSize = 0;
+      return;
+   }
+
+   switch (type) {
+      case GL_2D:
+	 ctx->Feedback._Mask = 0;
+	 break;
+      case GL_3D:
+	 ctx->Feedback._Mask = FB_3D;
+	 break;
+      case GL_3D_COLOR:
+	 ctx->Feedback._Mask = (FB_3D | FB_COLOR);
+	 break;
+      case GL_3D_COLOR_TEXTURE:
+	 ctx->Feedback._Mask = (FB_3D | FB_COLOR | FB_TEXTURE);
+	 break;
+      case GL_4D_COLOR_TEXTURE:
+	 ctx->Feedback._Mask = (FB_3D | FB_4D | FB_COLOR | FB_TEXTURE);
+	 break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glFeedbackBuffer" );
+	 return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_RENDERMODE); /* Always flush */
+   ctx->Feedback.Type = type;
+   ctx->Feedback.BufferSize = size;
+   ctx->Feedback.Buffer = buffer;
+   ctx->Feedback.Count = 0;	              /* Becaues of this. */
+}
+
+
+static void GLAPIENTRY
+_mesa_PassThrough( GLfloat token )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->RenderMode==GL_FEEDBACK) {
+      FLUSH_VERTICES(ctx, 0);
+      _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_PASS_THROUGH_TOKEN );
+      _mesa_feedback_token( ctx, token );
+   }
+}
+
+
+/**
+ * Put a vertex into the feedback buffer.
+ */
+void
+_mesa_feedback_vertex(struct gl_context *ctx,
+                      const GLfloat win[4],
+                      const GLfloat color[4],
+                      const GLfloat texcoord[4])
+{
+   _mesa_feedback_token( ctx, win[0] );
+   _mesa_feedback_token( ctx, win[1] );
+   if (ctx->Feedback._Mask & FB_3D) {
+      _mesa_feedback_token( ctx, win[2] );
+   }
+   if (ctx->Feedback._Mask & FB_4D) {
+      _mesa_feedback_token( ctx, win[3] );
+   }
+   if (ctx->Feedback._Mask & FB_COLOR) {
+      _mesa_feedback_token( ctx, color[0] );
+      _mesa_feedback_token( ctx, color[1] );
+      _mesa_feedback_token( ctx, color[2] );
+      _mesa_feedback_token( ctx, color[3] );
+   }
+   if (ctx->Feedback._Mask & FB_TEXTURE) {
+      _mesa_feedback_token( ctx, texcoord[0] );
+      _mesa_feedback_token( ctx, texcoord[1] );
+      _mesa_feedback_token( ctx, texcoord[2] );
+      _mesa_feedback_token( ctx, texcoord[3] );
+   }
+}
+
+
+/**********************************************************************/
+/** \name Selection */
+/*@{*/
+
+/**
+ * Establish a buffer for selection mode values.
+ * 
+ * \param size buffer size.
+ * \param buffer buffer.
+ *
+ * \sa glSelectBuffer().
+ * 
+ * \note this function can't be put in a display list.
+ * 
+ * Verifies we're not in selection mode, flushes the vertices and initialize
+ * the fields in __struct gl_contextRec::Select with the given buffer.
+ */
+static void GLAPIENTRY
+_mesa_SelectBuffer( GLsizei size, GLuint *buffer )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->RenderMode==GL_SELECT) {
+      _mesa_error( ctx, GL_INVALID_OPERATION, "glSelectBuffer" );
+      return;			/* KW: added return */
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_RENDERMODE); 
+   ctx->Select.Buffer = buffer;
+   ctx->Select.BufferSize = size;
+   ctx->Select.BufferCount = 0;
+   ctx->Select.HitFlag = GL_FALSE;
+   ctx->Select.HitMinZ = 1.0;
+   ctx->Select.HitMaxZ = 0.0;
+}
+
+
+/**
+ * Write a value of a record into the selection buffer.
+ * 
+ * \param ctx GL context.
+ * \param value value.
+ *
+ * Verifies there is free space in the buffer to write the value and
+ * increments the pointer.
+ */
+static INLINE void
+write_record(struct gl_context *ctx, GLuint value)
+{
+   if (ctx->Select.BufferCount < ctx->Select.BufferSize) {
+      ctx->Select.Buffer[ctx->Select.BufferCount] = value;
+   }
+   ctx->Select.BufferCount++;
+}
+
+
+/**
+ * Update the hit flag and the maximum and minimum depth values.
+ *
+ * \param ctx GL context.
+ * \param z depth.
+ *
+ * Sets gl_selection::HitFlag and updates gl_selection::HitMinZ and
+ * gl_selection::HitMaxZ.
+ */
+void
+_mesa_update_hitflag(struct gl_context *ctx, GLfloat z)
+{
+   ctx->Select.HitFlag = GL_TRUE;
+   if (z < ctx->Select.HitMinZ) {
+      ctx->Select.HitMinZ = z;
+   }
+   if (z > ctx->Select.HitMaxZ) {
+      ctx->Select.HitMaxZ = z;
+   }
+}
+
+
+/**
+ * Write the hit record.
+ *
+ * \param ctx GL context.
+ *
+ * Write the hit record, i.e., the number of names in the stack, the minimum and
+ * maximum depth values and the number of names in the name stack at the time
+ * of the event. Resets the hit flag. 
+ *
+ * \sa gl_selection.
+ */
+static void
+write_hit_record(struct gl_context *ctx)
+{
+   GLuint i;
+   GLuint zmin, zmax, zscale = (~0u);
+
+   /* HitMinZ and HitMaxZ are in [0,1].  Multiply these values by */
+   /* 2^32-1 and round to nearest unsigned integer. */
+
+   assert( ctx != NULL ); /* this line magically fixes a SunOS 5.x/gcc bug */
+   zmin = (GLuint) ((GLfloat) zscale * ctx->Select.HitMinZ);
+   zmax = (GLuint) ((GLfloat) zscale * ctx->Select.HitMaxZ);
+
+   write_record( ctx, ctx->Select.NameStackDepth );
+   write_record( ctx, zmin );
+   write_record( ctx, zmax );
+   for (i = 0; i < ctx->Select.NameStackDepth; i++) {
+      write_record( ctx, ctx->Select.NameStack[i] );
+   }
+
+   ctx->Select.Hits++;
+   ctx->Select.HitFlag = GL_FALSE;
+   ctx->Select.HitMinZ = 1.0;
+   ctx->Select.HitMaxZ = -1.0;
+}
+
+
+/**
+ * Initialize the name stack.
+ *
+ * Verifies we are in select mode and resets the name stack depth and resets
+ * the hit record data in gl_selection. Marks new render mode in
+ * __struct gl_contextRec::NewState.
+ */
+static void GLAPIENTRY
+_mesa_InitNames( void )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   /* Record the hit before the HitFlag is wiped out again. */
+   if (ctx->RenderMode == GL_SELECT) {
+      if (ctx->Select.HitFlag) {
+         write_hit_record( ctx );
+      }
+   }
+   ctx->Select.NameStackDepth = 0;
+   ctx->Select.HitFlag = GL_FALSE;
+   ctx->Select.HitMinZ = 1.0;
+   ctx->Select.HitMaxZ = 0.0;
+   ctx->NewState |= _NEW_RENDERMODE;
+}
+
+
+/**
+ * Load the top-most name of the name stack.
+ *
+ * \param name name.
+ *
+ * Verifies we are in selection mode and that the name stack is not empty.
+ * Flushes vertices. If there is a hit flag writes it (via write_hit_record()),
+ * and replace the top-most name in the stack.
+ *
+ * sa __struct gl_contextRec::Select.
+ */
+static void GLAPIENTRY
+_mesa_LoadName( GLuint name )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->RenderMode != GL_SELECT) {
+      return;
+   }
+   if (ctx->Select.NameStackDepth == 0) {
+      _mesa_error( ctx, GL_INVALID_OPERATION, "glLoadName" );
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
+
+   if (ctx->Select.HitFlag) {
+      write_hit_record( ctx );
+   }
+   if (ctx->Select.NameStackDepth < MAX_NAME_STACK_DEPTH) {
+      ctx->Select.NameStack[ctx->Select.NameStackDepth-1] = name;
+   }
+   else {
+      ctx->Select.NameStack[MAX_NAME_STACK_DEPTH-1] = name;
+   }
+}
+
+
+/**
+ * Push a name into the name stack.
+ *
+ * \param name name.
+ *
+ * Verifies we are in selection mode and that the name stack is not full.
+ * Flushes vertices. If there is a hit flag writes it (via write_hit_record()),
+ * and adds the name to the top of the name stack.
+ *
+ * sa __struct gl_contextRec::Select.
+ */
+static void GLAPIENTRY
+_mesa_PushName( GLuint name )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->RenderMode != GL_SELECT) {
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
+   if (ctx->Select.HitFlag) {
+      write_hit_record( ctx );
+   }
+   if (ctx->Select.NameStackDepth >= MAX_NAME_STACK_DEPTH) {
+      _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushName" );
+   }
+   else
+      ctx->Select.NameStack[ctx->Select.NameStackDepth++] = name;
+}
+
+
+/**
+ * Pop a name into the name stack.
+ *
+ * Verifies we are in selection mode and that the name stack is not empty.
+ * Flushes vertices. If there is a hit flag writes it (via write_hit_record()),
+ * and removes top-most name in the name stack.
+ *
+ * sa __struct gl_contextRec::Select.
+ */
+static void GLAPIENTRY
+_mesa_PopName( void )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->RenderMode != GL_SELECT) {
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
+   if (ctx->Select.HitFlag) {
+      write_hit_record( ctx );
+   }
+   if (ctx->Select.NameStackDepth == 0) {
+      _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopName" );
+   }
+   else
+      ctx->Select.NameStackDepth--;
+}
+
+/*@}*/
+
+
+/**********************************************************************/
+/** \name Render Mode */
+/*@{*/
+
+/**
+ * Set rasterization mode.
+ *
+ * \param mode rasterization mode.
+ *
+ * \note this function can't be put in a display list.
+ *
+ * \sa glRenderMode().
+ * 
+ * Flushes the vertices and do the necessary cleanup according to the previous
+ * rasterization mode, such as writing the hit record or resent the select
+ * buffer index when exiting the select mode. Updates
+ * __struct gl_contextRec::RenderMode and notifies the driver via the
+ * dd_function_table::RenderMode callback.
+ */
+static GLint GLAPIENTRY
+_mesa_RenderMode( GLenum mode )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint result;
+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glRenderMode %s\n", _mesa_lookup_enum_by_nr(mode));
+
+   FLUSH_VERTICES(ctx, _NEW_RENDERMODE);
+
+   switch (ctx->RenderMode) {
+      case GL_RENDER:
+	 result = 0;
+	 break;
+      case GL_SELECT:
+	 if (ctx->Select.HitFlag) {
+	    write_hit_record( ctx );
+	 }
+	 if (ctx->Select.BufferCount > ctx->Select.BufferSize) {
+	    /* overflow */
+#ifdef DEBUG
+            _mesa_warning(ctx, "Feedback buffer overflow");
+#endif
+	    result = -1;
+	 }
+	 else {
+	    result = ctx->Select.Hits;
+	 }
+	 ctx->Select.BufferCount = 0;
+	 ctx->Select.Hits = 0;
+	 ctx->Select.NameStackDepth = 0;
+	 break;
+#if _HAVE_FULL_GL
+      case GL_FEEDBACK:
+	 if (ctx->Feedback.Count > ctx->Feedback.BufferSize) {
+	    /* overflow */
+	    result = -1;
+	 }
+	 else {
+	    result = ctx->Feedback.Count;
+	 }
+	 ctx->Feedback.Count = 0;
+	 break;
+#endif
+      default:
+	 _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" );
+	 return 0;
+   }
+
+   switch (mode) {
+      case GL_RENDER:
+         break;
+      case GL_SELECT:
+	 if (ctx->Select.BufferSize==0) {
+	    /* haven't called glSelectBuffer yet */
+	    _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" );
+	 }
+	 break;
+#if _HAVE_FULL_GL
+      case GL_FEEDBACK:
+	 if (ctx->Feedback.BufferSize==0) {
+	    /* haven't called glFeedbackBuffer yet */
+	    _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" );
+	 }
+	 break;
+#endif
+      default:
+	 _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" );
+	 return 0;
+   }
+
+   ctx->RenderMode = mode;
+   if (ctx->Driver.RenderMode)
+      ctx->Driver.RenderMode( ctx, mode );
+
+   return result;
+}
+
+/*@}*/
+
+
+void
+_mesa_init_feedback_dispatch(struct _glapi_table *disp)
+{
+   SET_InitNames(disp, _mesa_InitNames);
+   SET_FeedbackBuffer(disp, _mesa_FeedbackBuffer);
+   SET_LoadName(disp, _mesa_LoadName);
+   SET_PassThrough(disp, _mesa_PassThrough);
+   SET_PopName(disp, _mesa_PopName);
+   SET_PushName(disp, _mesa_PushName);
+   SET_SelectBuffer(disp, _mesa_SelectBuffer);
+   SET_RenderMode(disp, _mesa_RenderMode);
+}
+
+
+#endif /* FEATURE_feedback */
+
+
+/**********************************************************************/
+/** \name Initialization */
+/*@{*/
+
+/**
+ * Initialize context feedback data.
+ */
+void _mesa_init_feedback( struct gl_context * ctx )
+{
+   /* Feedback */
+   ctx->Feedback.Type = GL_2D;   /* TODO: verify */
+   ctx->Feedback.Buffer = NULL;
+   ctx->Feedback.BufferSize = 0;
+   ctx->Feedback.Count = 0;
+
+   /* Selection/picking */
+   ctx->Select.Buffer = NULL;
+   ctx->Select.BufferSize = 0;
+   ctx->Select.BufferCount = 0;
+   ctx->Select.Hits = 0;
+   ctx->Select.NameStackDepth = 0;
+
+   /* Miscellaneous */
+   ctx->RenderMode = GL_RENDER;
+}
+
+/*@}*/
diff --git a/mesalib/src/mesa/main/texstore.c b/mesalib/src/mesa/main/texstore.c
index 5c925a3d3..e527981ff 100644
--- a/mesalib/src/mesa/main/texstore.c
+++ b/mesalib/src/mesa/main/texstore.c
@@ -3303,8 +3303,7 @@ _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
 {
    const GLuint depthScale = 0xffffff;
    const GLint srcRowStride
-      = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
-      / sizeof(GLuint);
+      = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
    GLint img, row;
 
    ASSERT(dstFormat == MESA_FORMAT_Z24_S8);
@@ -3332,8 +3331,8 @@ _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
             + dstImageOffsets[dstZoffset + img]
             + dstYoffset * dstRowStride / sizeof(GLuint)
             + dstXoffset;
-         const GLuint *src
-            = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+         const GLubyte *src
+            = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
                   srcWidth, srcHeight,
                   srcFormat, srcType,
                   img, 0, 0);
@@ -3390,8 +3389,7 @@ _mesa_texstore_s8_z24(TEXSTORE_PARAMS)
 {
    const GLuint depthScale = 0xffffff;
    const GLint srcRowStride
-      = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
-      / sizeof(GLuint);
+      = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
    GLint img, row;
 
    ASSERT(dstFormat == MESA_FORMAT_S8_Z24);
@@ -3406,8 +3404,8 @@ _mesa_texstore_s8_z24(TEXSTORE_PARAMS)
 	 + dstImageOffsets[dstZoffset + img]
 	 + dstYoffset * dstRowStride / sizeof(GLuint)
 	 + dstXoffset;
-      const GLuint *src
-	 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+      const GLubyte *src
+	 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
 						srcWidth, srcHeight,
 						srcFormat, srcType,
 						img, 0, 0);
@@ -3479,8 +3477,7 @@ _mesa_texstore_s8(TEXSTORE_PARAMS)
    }
    else {
       const GLint srcRowStride
-	 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
-	 / sizeof(GLuint);
+	 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
       GLint img, row;
       
       for (img = 0; img < srcDepth; img++) {
@@ -3488,8 +3485,8 @@ _mesa_texstore_s8(TEXSTORE_PARAMS)
             + dstImageOffsets[dstZoffset + img]
             + dstYoffset * dstRowStride / sizeof(GLuint)
             + dstXoffset;
-         const GLuint *src
-            = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
+         const GLubyte *src
+            = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
                                                    srcWidth, srcHeight,
                                                    srcFormat, srcType,
                                                    img, 0, 0);
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index 67adb8f3d..738e97ca5 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -803,48 +803,44 @@ ir_to_mesa_visitor::visit(ir_loop *ir)
    ir_dereference_variable *counter = NULL;
 
    if (ir->counter != NULL)
-      counter = new(ir) ir_dereference_variable(ir->counter);
+      counter = new(mem_ctx) ir_dereference_variable(ir->counter);
 
    if (ir->from != NULL) {
       assert(ir->counter != NULL);
 
-      ir_assignment *a = new(ir) ir_assignment(counter, ir->from, NULL);
+      ir_assignment *a =
+	new(mem_ctx) ir_assignment(counter, ir->from, NULL);
 
       a->accept(this);
-      delete a;
    }
 
    emit(NULL, OPCODE_BGNLOOP);
 
    if (ir->to) {
       ir_expression *e =
-	 new(ir) ir_expression(ir->cmp, glsl_type::bool_type,
-			       counter, ir->to);
-      ir_if *if_stmt =  new(ir) ir_if(e);
+	 new(mem_ctx) ir_expression(ir->cmp, glsl_type::bool_type,
+					  counter, ir->to);
+      ir_if *if_stmt =  new(mem_ctx) ir_if(e);
 
-      ir_loop_jump *brk = new(ir) ir_loop_jump(ir_loop_jump::jump_break);
+      ir_loop_jump *brk =
+	new(mem_ctx) ir_loop_jump(ir_loop_jump::jump_break);
 
       if_stmt->then_instructions.push_tail(brk);
 
       if_stmt->accept(this);
-
-      delete if_stmt;
-      delete e;
-      delete brk;
    }
 
    visit_exec_list(&ir->body_instructions, this);
 
    if (ir->increment) {
       ir_expression *e =
-	 new(ir) ir_expression(ir_binop_add, counter->type,
-			       counter, ir->increment);
+	 new(mem_ctx) ir_expression(ir_binop_add, counter->type,
+					  counter, ir->increment);
 
-      ir_assignment *a = new(ir) ir_assignment(counter, e, NULL);
+      ir_assignment *a =
+	new(mem_ctx) ir_assignment(counter, e, NULL);
 
       a->accept(this);
-      delete a;
-      delete e;
    }
 
    emit(NULL, OPCODE_ENDLOOP);
-- 
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