ddfb1cffb915b7493076eb86575a80cbd37947c6
2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * \mainpage Mesa GL API Module
29 * \section GLAPIIntroduction Introduction
31 * The Mesa GL API module is responsible for dispatching all the
32 * gl*() functions. All GL functions are dispatched by jumping through
33 * the current dispatch table (basically a struct full of function
36 * A per-thread current dispatch table and per-thread current context
37 * pointer are managed by this module too.
39 * This module is intended to be non-Mesa-specific so it can be used
40 * with the X/DRI libGL also.
49 #include "glapitable.h"
53 typedef void (*_glapi_warning_func
)(void *ctx
, const char *str
, ...);
56 #if defined(USE_MGL_NAMESPACE)
57 #define _glapi_set_dispatch _mglapi_set_dispatch
58 #define _glapi_get_dispatch _mglapi_get_dispatch
59 #define _glapi_set_context _mglapi_set_context
60 #define _glapi_get_context _mglapi_get_context
61 #define _glapi_Context _mglapi_Context
62 #define _glapi_Dispatch _mglapi_Dispatch
67 ** Define the GET_CURRENT_CONTEXT() macro.
68 ** \param C local variable which will hold the current context.
70 #if defined (GLX_USE_TLS)
72 const extern void *_glapi_Context
;
73 const extern struct _glapi_table
*_glapi_Dispatch
;
75 extern __thread
void * _glapi_tls_Context
76 __attribute__((tls_model("initial-exec")));
78 # define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_tls_Context
82 extern void *_glapi_Context
;
83 extern struct _glapi_table
*_glapi_Dispatch
;
86 # define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) (_glapi_Context ? _glapi_Context : _glapi_get_context())
88 # define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) _glapi_Context
91 #endif /* defined (GLX_USE_TLS) */
95 ** GL API public functions
99 _glapi_noop_enable_warnings(GLboolean enable
);
102 _glapi_set_warning_func(_glapi_warning_func func
);
105 _glapi_check_multithread(void);
109 _glapi_set_context(void *context
);
113 _glapi_get_context(void);
117 _glapi_set_dispatch(struct _glapi_table
*dispatch
);
120 extern struct _glapi_table
*
121 _glapi_get_dispatch(void);
125 _glapi_begin_dispatch_override(struct _glapi_table
*override
);
129 _glapi_end_dispatch_override(int layer
);
132 struct _glapi_table
*
133 _glapi_get_override_dispatch(int layer
);
137 _glapi_get_dispatch_table_size(void);
141 _glapi_check_table(const struct _glapi_table
*table
);
145 _glapi_add_dispatch( const char * const * function_names
,
146 const char * parameter_signature
);
149 _glapi_get_proc_offset(const char *funcName
);
153 _glapi_get_proc_address(const char *funcName
);
157 _glapi_get_proc_name(GLuint offset
);