src/mapi/glapi/glapi.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.1
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  *
   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:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  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.
  23  */
  24
  25
  26 /**
  27  * \mainpage Mesa GL API Module
  28  *
  29  * \section GLAPIIntroduction Introduction
  30  *
  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
  34  * pointers.)
  35  *
  36  * A per-thread current dispatch table and per-thread current context
  37  * pointer are managed by this module too.
  38  *
  39  * This module is intended to be non-Mesa-specific so it can be used
  40  * with the X/DRI libGL also.
  41  */
  42
  43
  44 #ifndef _GLAPI_H
  45 #define _GLAPI_H
  46
  47 #ifndef MAPI_GLAPI_CURRENT
  48 #define MAPI_GLAPI_CURRENT
  49 #endif
  50
  51 #ifdef USE_MGL_NAMESPACE
  52 #define _glapi_set_dispatch _mglapi_set_dispatch
  53 #define _glapi_get_dispatch _mglapi_get_dispatch
  54 #define _glapi_set_context _mglapi_set_context
  55 #define _glapi_get_context _mglapi_get_context
  56 #define _glapi_Dispatch _mglapi_Dispatch
  57 #define _glapi_Context _mglapi_Context
  58 #endif
  59
  60 #include "mapi/u_current.h"
  61 #include "glapi/glthread.h"
  62
  63 typedef void (*_glapi_proc)(void);
  64
  65 #define GET_DISPATCH() ((struct _glapi_table *) u_current_get())
  66 #define GET_CURRENT_CONTEXT(C) GLcontext *C = (GLcontext *) u_current_get_user()
  67
  68 PUBLIC unsigned int
  69 _glapi_get_dispatch_table_size(void);
  70
  71
  72 PUBLIC int
  73 _glapi_add_dispatch( const char * const * function_names,
  74                      const char * parameter_signature );
  75
  76 PUBLIC int
  77 _glapi_get_proc_offset(const char *funcName);
  78
  79
  80 PUBLIC _glapi_proc
  81 _glapi_get_proc_address(const char *funcName);
  82
  83
  84 PUBLIC const char *
  85 _glapi_get_proc_name(unsigned int offset);
  86
  87
  88 #endif