src/mesa/main/dispatch.c

   1 /* $Id: dispatch.c,v 1.14 2000/02/02 19:18:19 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.3
   6  *
   7  * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 #ifdef PC_HEADER
  29 #include "all.h"
  30 #else
  31 #include "glheader.h"
  32 #include "glapi.h"
  33 #include "glapitable.h"
  34 #endif
  35
  36
  37
  38 #define KEYWORD1
  39 #define KEYWORD2 GLAPIENTRY
  40 #if defined(USE_X86_ASM) && !defined(__WIN32__) && !defined(XF86DRI)
  41 #define NAME(func) _glapi_fallback_##func
  42 #elif defined(USE_MGL_NAMESPACE)
  43 #define NAME(func)  mgl##func
  44 #else
  45 #define NAME(func)  gl##func
  46 #endif
  47
  48 #ifdef DEBUG
  49
  50 static int
  51 trace(void)
  52 {
  53    static int trace = -1;
  54    if (trace < 0)
  55       trace = getenv("MESA_TRACE") ? 1 : 0;
  56    return trace > 0;
  57 }
  58
  59 #define F stderr
  60
  61 #define DISPATCH(FUNC, ARGS, MESSAGE)                                   \
  62    const struct _glapi_table *dispatch;                                 \
  63    dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  64    if (trace()) {                                                       \
  65       fprintf MESSAGE;                                                  \
  66       fprintf(F, "\n");                                                 \
  67    }                                                                    \
  68    (dispatch->FUNC) ARGS
  69
  70 #define RETURN_DISPATCH(FUNC, ARGS, MESSAGE)                            \
  71    const struct _glapi_table *dispatch;                                 \
  72    dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  73    if (trace()) {                                                       \
  74       fprintf MESSAGE;                                                  \
  75       fprintf(F, "\n");                                                 \
  76    }                                                                    \
  77    return (dispatch->FUNC) ARGS
  78
  79 #else
  80
  81 #define DISPATCH(FUNC, ARGS, MESSAGE)                                   \
  82    const struct _glapi_table *dispatch;                                 \
  83    dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  84    (dispatch->FUNC) ARGS
  85
  86 #define RETURN_DISPATCH(FUNC, ARGS, MESSAGE)                            \
  87    const struct _glapi_table *dispatch;                                 \
  88    dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  89    return (dispatch->FUNC) ARGS
  90
  91 #endif
  92
  93
  94 #ifndef GLAPIENTRY
  95 #define GLAPIENTRY
  96 #endif
  97
  98 #include "glapitemp.h"
  99