glsl_parser_extras.h

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #pragma once
  25 #ifndef GLSL_PARSER_EXTRAS_H
  26 #define GLSL_PARSER_EXTRAS_H
  27
  28 #include <cstdlib>
  29 #include "main/simple_list.h"
  30 #include "glsl_symbol_table.h"
  31
  32 enum _mesa_glsl_parser_targets {
  33    vertex_shader,
  34    geometry_shader,
  35    fragment_shader
  36 };
  37
  38 struct _mesa_glsl_parse_state {
  39    void *scanner;
  40    struct simple_node translation_unit;
  41    glsl_symbol_table *symbols;
  42
  43    unsigned language_version;
  44    enum _mesa_glsl_parser_targets target;
  45
  46    /**
  47     * During AST to IR conversion, pointer to current IR function
  48     *
  49     * Will be \c NULL whenever the AST to IR conversion is not inside a
  50     * function definition.
  51     */
  52    class ir_function_signature *current_function;
  53
  54    /** Was there an error during compilation? */
  55    bool error;
  56
  57    /** Index of last generated anonymous temporary. */
  58    unsigned temp_index;
  59 };
  60
  61 typedef struct YYLTYPE {
  62    int first_line;
  63    int first_column;
  64    int last_line;
  65    int last_column;
  66    unsigned source;
  67 } YYLTYPE;
  68 # define YYLTYPE_IS_DECLARED 1
  69 # define YYLTYPE_IS_TRIVIAL 1
  70
  71 extern void _mesa_glsl_error(YYLTYPE *locp, _mesa_glsl_parse_state *state,
  72                              const char *fmt, ...);
  73
  74 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state,
  75                                   const char *string, size_t len);
  76
  77 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state);
  78
  79 union YYSTYPE;
  80 extern int _mesa_glsl_lex(union YYSTYPE *yylval, YYLTYPE *yylloc,
  81                           void *scanner);
  82
  83 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state *);
  84
  85 #endif /* GLSL_PARSER_EXTRAS_H */