src/hgl/GLDispatcher.cpp

   1 /*
   2  * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
   3  * Copyright 2000-2015 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 #include "glapi/glapi.h"
  14 #include "glapi/glapi_priv.h"
  15
  16
  17 extern "C" {
  18 /*
  19  * NOTE: this file portion implements C-based dispatch of the OpenGL entrypoints
  20  * (glAccum, glBegin, etc).
  21  * This code IS NOT USED if we're compiling on an x86 system and using
  22  * the glapi_x86.S assembly code.
  23  */
  24 #if !(defined(USE_X86_ASM) || defined(USE_SPARC_ASM))
  25
  26 #define KEYWORD1 PUBLIC
  27 #define KEYWORD2
  28 #define NAME(func) gl##func
  29
  30 #define DISPATCH(func, args, msg)                                       \
  31         const struct _glapi_table* dispatch;                                    \
  32         dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  33         (dispatch->func) args
  34
  35 #define RETURN_DISPATCH(func, args, msg)                                \
  36         const struct _glapi_table* dispatch;                                    \
  37         dispatch = _glapi_Dispatch ? _glapi_Dispatch : _glapi_get_dispatch();\
  38         return (dispatch->func) args
  39
  40 #endif
  41 }
  42
  43
  44 /* NOTE: this file portion implement a thin OpenGL entrypoints dispatching
  45         C++ wrapper class
  46  */
  47
  48 #include "GLDispatcher.h"
  49
  50 BGLDispatcher::BGLDispatcher()
  51 {
  52 }
  53
  54
  55 BGLDispatcher::~BGLDispatcher()
  56 {
  57 }
  58
  59
  60 status_t
  61 BGLDispatcher::SetTable(struct _glapi_table* table)
  62 {
  63         _glapi_set_dispatch(table);
  64         return B_OK;
  65 }