2 * Copyright © 2010 Intel Corporation
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5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
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9 * Software is furnished to do so, subject to the following conditions:
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
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
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21 * DEALINGS IN THE SOFTWARE.
25 #ifndef GLSL_PARSER_EXTRAS_H
26 #define GLSL_PARSER_EXTRAS_H
29 #include "glsl_symbol_table.h"
31 enum _mesa_glsl_parser_targets
{
38 struct _mesa_glsl_parse_state
{
40 exec_list translation_unit
;
41 glsl_symbol_table
*symbols
;
43 unsigned language_version
;
44 enum _mesa_glsl_parser_targets target
;
47 * During AST to IR conversion, pointer to current IR function
49 * Will be \c NULL whenever the AST to IR conversion is not inside a
50 * function definition.
52 class ir_function_signature
*current_function
;
54 /** Have we found a return statement in this function? */
57 /** Was there an error during compilation? */
60 /** Index of last generated anonymous temporary. */
63 /** Loop or switch statement containing the current instructions. */
64 class ir_instruction
*loop_or_switch_nesting
;
66 /** List of structures defined in user code. */
67 const glsl_type
**user_structures
;
68 unsigned num_user_structures
;
73 * \name Enable bits for GLSL extensions
76 unsigned ARB_draw_buffers_enable
:1;
77 unsigned ARB_draw_buffers_warn
:1;
78 unsigned ARB_texture_rectangle_enable
:1;
79 unsigned ARB_texture_rectangle_warn
:1;
80 unsigned EXT_texture_array_enable
:1;
81 unsigned EXT_texture_array_warn
:1;
85 typedef struct YYLTYPE
{
92 # define YYLTYPE_IS_DECLARED 1
93 # define YYLTYPE_IS_TRIVIAL 1
95 extern void _mesa_glsl_error(YYLTYPE
*locp
, _mesa_glsl_parse_state
*state
,
96 const char *fmt
, ...);
99 * Emit a warning to the shader log
101 * \sa _mesa_glsl_error
103 extern void _mesa_glsl_warning(const YYLTYPE
*locp
,
104 _mesa_glsl_parse_state
*state
,
105 const char *fmt
, ...);
108 extern int preprocess(void *ctx
, const char **shader
, char **info_log
);
111 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state
*state
,
114 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state
*state
);
117 extern int _mesa_glsl_lex(union YYSTYPE
*yylval
, YYLTYPE
*yylloc
,
120 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state
*);
123 * Process elements of the #extension directive
126 * If \c name and \c behavior are valid, \c true is returned. Otherwise
127 * \c false is returned.
129 extern bool _mesa_glsl_process_extension(const char *name
, YYLTYPE
*name_locp
,
130 const char *behavior
,
131 YYLTYPE
*behavior_locp
,
132 _mesa_glsl_parse_state
*state
);
135 * Get the textual name of the specified shader target
138 _mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target
);
140 void do_ir_to_mesa(exec_list
*instructions
);
142 #endif /* GLSL_PARSER_EXTRAS_H */