src/gallium/targets/libgl-haiku/GLDispatcher.cpp

   1 /*
   2  * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   3  * Copyright 2000-2012 Haiku, Inc. All Rights Reserved.
   4  * Distributed under the terms of the MIT License.
   5  *
   6  * Authors:
   7  *              Brian Paul <brian.e.paul@gmail.com>
   8  *              Philippe Houdoin <philippe.houdoin@free.fr>
   9  *              Alexander von Gluck IV <kallisti5@unixzen.com>
  10  */
  11
  12
  13 extern "C" {
  14 #include "glapi/glapi.h"
  15 #include "glapi/glapi_priv.h"
  16
  17 /*
  18  * NOTE: this file portion implements C-based dispatch of the OpenGL entrypoints
  19  * (glAccum, glBegin, etc).
  20  * This code IS NOT USED if we're compiling on an x86 system and using
  21  * the glapi_x86.S assembly code.
  22  */
  23 #if !(defined(USE_X86_ASM) || defined(USE_SPARC_ASM))
  24
  25 #define KEYWORD1 PUBLIC
  26 #define KEYWORD2
  27 #define NAME(func) gl##func
  28
  29 #define DISPATCH(func, args, msg)                                       \
  30         const struct _glapi_table* dispatch;                                    \
  31         dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  32         (dispatch->func) args
  33
  34 #define RETURN_DISPATCH(func, args, msg)                                \
  35         const struct _glapi_table* dispatch;                                    \
  36         dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  37         return (dispatch->func) args
  38
  39 #endif
  40 }
  41
  42
  43 /* NOTE: this file portion implement a thin OpenGL entrypoints dispatching
  44         C++ wrapper class
  45  */
  46
  47 #include "GLDispatcher.h"
  48
  49 BGLDispatcher::BGLDispatcher()
  50 {
  51 }
  52
  53
  54 BGLDispatcher::~BGLDispatcher()
  55 {
  56 }
  57
  58
  59 status_t
  60 BGLDispatcher::CheckTable(const struct _glapi_table* table)
  61 {
  62         _glapi_check_table(table ? table : _glapi_get_dispatch());
  63         return B_OK;
  64 }
  65
  66
  67 status_t
  68 BGLDispatcher::SetTable(struct _glapi_table* table)
  69 {
  70         _glapi_set_dispatch(table);
  71         return B_OK;
  72 }