workbench/libs/mesa/src/glsl/glcpp/glcpp.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 #ifndef GLCPP_H
  25 #define GLCPP_H
  26
  27 #include <stdint.h>
  28
  29 #include "../ralloc.h"
  30
  31 #include "program/hash_table.h"
  32
  33 #define yyscan_t void*
  34
  35 /* Some data types used for parser values. */
  36
  37 typedef struct string_node {
  38         const char *str;
  39         struct string_node *next;
  40 } string_node_t;
  41
  42 typedef struct string_list {
  43         string_node_t *head;
  44         string_node_t *tail;
  45 } string_list_t;
  46
  47 typedef struct token token_t;
  48 typedef struct token_list token_list_t;
  49
  50 typedef union YYSTYPE
  51 {
  52         intmax_t ival;
  53         char *str;
  54         string_list_t *string_list;
  55         token_t *token;
  56         token_list_t *token_list;
  57 } YYSTYPE;
  58
  59 # define YYSTYPE_IS_TRIVIAL 1
  60 # define YYSTYPE_IS_DECLARED 1
  61
  62 typedef struct YYLTYPE {
  63    int first_line;
  64    int first_column;
  65    int last_line;
  66    int last_column;
  67    unsigned source;
  68 } YYLTYPE;
  69 # define YYLTYPE_IS_DECLARED 1
  70 # define YYLTYPE_IS_TRIVIAL 1
  71
  72 # define YYLLOC_DEFAULT(Current, Rhs, N)                        \
  73 do {                                                            \
  74    if (N)                                                       \
  75    {                                                            \
  76       (Current).first_line   = YYRHSLOC(Rhs, 1).first_line;     \
  77       (Current).first_column = YYRHSLOC(Rhs, 1).first_column;   \
  78       (Current).last_line    = YYRHSLOC(Rhs, N).last_line;      \
  79       (Current).last_column  = YYRHSLOC(Rhs, N).last_column;    \
  80    }                                                            \
  81    else                                                         \
  82    {                                                            \
  83       (Current).first_line   = (Current).last_line =            \
  84          YYRHSLOC(Rhs, 0).last_line;                            \
  85       (Current).first_column = (Current).last_column =          \
  86          YYRHSLOC(Rhs, 0).last_column;                          \
  87    }                                                            \
  88    (Current).source = 0;                                        \
  89 } while (0)
  90
  91 struct token {
  92         int type;
  93         YYSTYPE value;
  94         YYLTYPE location;
  95 };
  96
  97 typedef struct token_node {
  98         token_t *token;
  99         struct token_node *next;
 100 } token_node_t;
 101
 102 struct token_list {
 103         token_node_t *head;
 104         token_node_t *tail;
 105         token_node_t *non_space_tail;
 106 };
 107
 108 typedef struct argument_node {
 109         token_list_t *argument;
 110         struct argument_node *next;
 111 } argument_node_t;
 112
 113 typedef struct argument_list {
 114         argument_node_t *head;
 115         argument_node_t *tail;
 116 } argument_list_t;
 117
 118 typedef struct glcpp_parser glcpp_parser_t;
 119
 120 typedef enum {
 121         TOKEN_CLASS_IDENTIFIER,
 122         TOKEN_CLASS_IDENTIFIER_FINALIZED,
 123         TOKEN_CLASS_FUNC_MACRO,
 124         TOKEN_CLASS_OBJ_MACRO
 125 } token_class_t;
 126
 127 token_class_t
 128 glcpp_parser_classify_token (glcpp_parser_t *parser,
 129                              const char *identifier,
 130                              int *parameter_index);
 131
 132 typedef struct {
 133         int is_function;
 134         string_list_t *parameters;
 135         const char *identifier;
 136         token_list_t *replacements;
 137 } macro_t;
 138
 139 typedef struct expansion_node {
 140         macro_t *macro;
 141         token_node_t *replacements;
 142         struct expansion_node *next;
 143 } expansion_node_t;
 144
 145 typedef enum skip_type {
 146         SKIP_NO_SKIP,
 147         SKIP_TO_ELSE,
 148         SKIP_TO_ENDIF
 149 } skip_type_t;
 150
 151 typedef struct skip_node {
 152         skip_type_t type;
 153         YYLTYPE loc; /* location of the initial #if/#elif/... */
 154         struct skip_node *next;
 155 } skip_node_t;
 156
 157 typedef struct active_list {
 158         const char *identifier;
 159         token_node_t *marker;
 160         struct active_list *next;
 161 } active_list_t;
 162
 163 struct glcpp_parser {
 164         yyscan_t scanner;
 165         struct hash_table *defines;
 166         active_list_t *active;
 167         int lexing_if;
 168         int space_tokens;
 169         int newline_as_space;
 170         int in_control_line;
 171         int paren_count;
 172         skip_node_t *skip_stack;
 173         token_list_t *lex_from_list;
 174         token_node_t *lex_from_node;
 175         char *output;
 176         char *info_log;
 177         int error;
 178 };
 179
 180 struct gl_extensions;
 181
 182 glcpp_parser_t *
 183 glcpp_parser_create (const struct gl_extensions *extensions, int api);
 184
 185 int
 186 glcpp_parser_parse (glcpp_parser_t *parser);
 187
 188 void
 189 glcpp_parser_destroy (glcpp_parser_t *parser);
 190
 191 int
 192 preprocess(void *ralloc_ctx, const char **shader, char **info_log,
 193            const struct gl_extensions *extensions, int api);
 194
 195 /* Functions for writing to the info log */
 196
 197 void
 198 glcpp_error (YYLTYPE *locp, glcpp_parser_t *parser, const char *fmt, ...);
 199
 200 void
 201 glcpp_warning (YYLTYPE *locp, glcpp_parser_t *parser, const char *fmt, ...);
 202
 203 /* Generated by glcpp-lex.l to glcpp-lex.c */
 204
 205 int
 206 glcpp_lex_init_extra (glcpp_parser_t *parser, yyscan_t* scanner);
 207
 208 void
 209 glcpp_lex_set_source_string(glcpp_parser_t *parser, const char *shader);
 210
 211 int
 212 glcpp_lex (YYSTYPE *lvalp, YYLTYPE *llocp, yyscan_t scanner);
 213
 214 int
 215 glcpp_lex_destroy (yyscan_t scanner);
 216
 217 /* Generated by glcpp-parse.y to glcpp-parse.c */
 218
 219 int
 220 yyparse (glcpp_parser_t *parser);
 221
 222 #endif