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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/glsl_parser_extras.h
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parent6fda93be42ace9eeab0e82ceebb6798961c9105c (diff)
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svn merge ^/branches/released .
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+/*
+ * 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 */