src/mapi/glapi/glapi_dispatch.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.3
   4  *
   5  * Copyright (C) 1999-2004  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  * \file glapi_dispatch.c
  28  *
  29  * This file generates all the gl* function entrypoints.  This code is not
  30  * used if optimized assembly stubs are available (e.g., using
  31  * glapi/glapi_x86.S on IA32 or glapi/glapi_sparc.S on SPARC).
  32  *
  33  * \note
  34  * This file is also used to build the client-side libGL that loads DRI-based
  35  * device drivers.  At build-time it is symlinked to src/glx.
  36  *
  37  * \author Brian Paul <brian@precisioninsight.com>
  38  */
  39
  40 #include "glapi/glapi_priv.h"
  41 #include "glapi/glapitable.h"
  42 #include "glapi/glapidispatch.h"
  43
  44 #if !(defined(USE_X86_ASM) || defined(USE_X86_64_ASM) || defined(USE_SPARC_ASM))
  45
  46 #if defined(WIN32)
  47 #define KEYWORD1 GLAPI
  48 #else
  49 #define KEYWORD1 PUBLIC
  50 #endif
  51
  52 #define KEYWORD2 GLAPIENTRY
  53
  54 #if defined(USE_MGL_NAMESPACE)
  55 #define NAME(func)  mgl##func
  56 #else
  57 #define NAME(func)  gl##func
  58 #endif
  59
  60 #define DISPATCH(FUNC, ARGS, MESSAGE)           \
  61    CALL_ ## FUNC(GET_DISPATCH(), ARGS);
  62
  63 #define RETURN_DISPATCH(FUNC, ARGS, MESSAGE)    \
  64    return CALL_ ## FUNC(GET_DISPATCH(), ARGS);
  65
  66
  67 #ifndef GLAPIENTRY
  68 #define GLAPIENTRY
  69 #endif
  70
  71 #ifdef GLX_INDIRECT_RENDERING
  72 /* those link to libglapi.a should provide the entry points */
  73 #define _GLAPI_SKIP_PROTO_ENTRY_POINTS
  74 #endif
  75 #include "glapi/glapitemp.h"
  76
  77 #endif /* USE_X86_ASM */
  78
  79
  80 #ifdef DEBUG
  81
  82 static void *logger_data;
  83 static void (*logger_func)(void *data, const char *fmt, ...);
  84 static struct _glapi_table *real_dispatch; /* FIXME: This need to be TLS etc */
  85
  86 #define KEYWORD1 static
  87 #define KEYWORD1_ALT static
  88 #define KEYWORD2
  89 #define NAME(func)  log_##func
  90 #define F logger_data
  91
  92 static void
  93 log_Unused(void)
  94 {
  95 }
  96
  97 #define DISPATCH(FUNC, ARGS, MESSAGE)           \
  98    logger_func MESSAGE;                         \
  99    CALL_ ## FUNC(real_dispatch, ARGS);
 100
 101 #define RETURN_DISPATCH(FUNC, ARGS, MESSAGE)    \
 102    logger_func MESSAGE;                 \
 103    return CALL_ ## FUNC(real_dispatch, ARGS);
 104
 105 #define DISPATCH_TABLE_NAME __glapi_logging_table
 106
 107 #define TABLE_ENTRY(func) (_glapi_proc) log_##func
 108
 109 #include "glapi/glapitemp.h"
 110
 111 int
 112 _glapi_logging_available(void)
 113 {
 114    return 1;
 115 }
 116
 117 void
 118 _glapi_enable_logging(void (*func)(void *data, const char *fmt, ...),
 119                       void *data)
 120 {
 121    real_dispatch = GET_DISPATCH();
 122    logger_func = func;
 123    logger_data = data;
 124    _glapi_set_dispatch(&__glapi_logging_table);
 125 }
 126
 127 #else
 128
 129 int
 130 _glapi_logging_available(void)
 131 {
 132    return 0;
 133 }
 134
 135 void
 136 _glapi_enable_logging(void (*func)(void *data, const char *fmt, ...),
 137                       void *data)
 138 {
 139 }
 140
 141 #endif