2 * Copyright © 2010 Intel Corporation
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5 * copy of this software and associated documentation files (the "Software"),
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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:
11 * The above copyright notice and this permission notice (including the next
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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,
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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 /** Was there an error during compilation? */
57 /** Index of last generated anonymous temporary. */
60 /** Loop or switch statement containing the current instructions. */
61 class ir_instruction
*loop_or_switch_nesting
;
63 /** List of structures defined in user code. */
64 const glsl_type
**user_structures
;
65 unsigned num_user_structures
;
70 * \name Enable bits for GLSL extensions
73 unsigned ARB_draw_buffers_enable
:1;
74 unsigned ARB_draw_buffers_warn
:1;
75 unsigned ARB_texture_rectangle_enable
:1;
76 unsigned ARB_texture_rectangle_warn
:1;
77 unsigned EXT_texture_array_enable
:1;
78 unsigned EXT_texture_array_warn
:1;
82 typedef struct YYLTYPE
{
89 # define YYLTYPE_IS_DECLARED 1
90 # define YYLTYPE_IS_TRIVIAL 1
92 extern void _mesa_glsl_error(YYLTYPE
*locp
, _mesa_glsl_parse_state
*state
,
93 const char *fmt
, ...);
96 * Emit a warning to the shader log
98 * \sa _mesa_glsl_error
100 extern void _mesa_glsl_warning(const YYLTYPE
*locp
,
101 _mesa_glsl_parse_state
*state
,
102 const char *fmt
, ...);
105 extern int preprocess(void *ctx
, const char **shader
, size_t *shader_len
);
108 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state
*state
,
109 const char *string
, size_t len
);
111 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state
*state
);
114 extern int _mesa_glsl_lex(union YYSTYPE
*yylval
, YYLTYPE
*yylloc
,
117 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state
*);
120 * Process elements of the #extension directive
123 * If \c name and \c behavior are valid, \c true is returned. Otherwise
124 * \c false is returned.
126 extern bool _mesa_glsl_process_extension(const char *name
, YYLTYPE
*name_locp
,
127 const char *behavior
,
128 YYLTYPE
*behavior_locp
,
129 _mesa_glsl_parse_state
*state
);
132 * Get the textual name of the specified shader target
135 _mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target
);
137 #endif /* GLSL_PARSER_EXTRAS_H */