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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 * Implementation defined limits that affect built-in variables, etc.
49 * \sa struct gl_constants (in mtypes.h)
52 unsigned MaxDrawBuffers
;
53 unsigned MaxTextureCoords
;
57 * During AST to IR conversion, pointer to current IR function
59 * Will be \c NULL whenever the AST to IR conversion is not inside a
60 * function definition.
62 class ir_function_signature
*current_function
;
64 /** Have we found a return statement in this function? */
67 /** Was there an error during compilation? */
70 /** Index of last generated anonymous temporary. */
73 /** Loop or switch statement containing the current instructions. */
74 class ir_instruction
*loop_or_switch_nesting
;
76 /** List of structures defined in user code. */
77 const glsl_type
**user_structures
;
78 unsigned num_user_structures
;
83 * \name Enable bits for GLSL extensions
86 unsigned ARB_draw_buffers_enable
:1;
87 unsigned ARB_draw_buffers_warn
:1;
88 unsigned ARB_texture_rectangle_enable
:1;
89 unsigned ARB_texture_rectangle_warn
:1;
90 unsigned EXT_texture_array_enable
:1;
91 unsigned EXT_texture_array_warn
:1;
94 /** Extensions supported by the OpenGL implementation. */
95 const struct gl_extensions
*extensions
;
98 typedef struct YYLTYPE
{
105 # define YYLTYPE_IS_DECLARED 1
106 # define YYLTYPE_IS_TRIVIAL 1
108 extern void _mesa_glsl_error(YYLTYPE
*locp
, _mesa_glsl_parse_state
*state
,
109 const char *fmt
, ...);
112 * Emit a warning to the shader log
114 * \sa _mesa_glsl_error
116 extern void _mesa_glsl_warning(const YYLTYPE
*locp
,
117 _mesa_glsl_parse_state
*state
,
118 const char *fmt
, ...);
121 extern int preprocess(void *ctx
, const char **shader
, char **info_log
,
122 const struct gl_extensions
*extensions
);
125 extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state
*state
,
128 extern void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state
*state
);
131 extern int _mesa_glsl_lex(union YYSTYPE
*yylval
, YYLTYPE
*yylloc
,
134 extern int _mesa_glsl_parse(struct _mesa_glsl_parse_state
*);
137 * Process elements of the #extension directive
140 * If \c name and \c behavior are valid, \c true is returned. Otherwise
141 * \c false is returned.
143 extern bool _mesa_glsl_process_extension(const char *name
, YYLTYPE
*name_locp
,
144 const char *behavior
,
145 YYLTYPE
*behavior_locp
,
146 _mesa_glsl_parse_state
*state
);
149 * Get the textual name of the specified shader target
152 _mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target
);
154 void do_ir_to_mesa(exec_list
*instructions
);
156 #endif /* GLSL_PARSER_EXTRAS_H */