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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. #include <windows.h>
  29.  
  30. #define WGL_WGLEXT_PROTOTYPES
  31.  
  32. #include <GL/gl.h>
  33. #include <GL/wglext.h>
  34.  
  35. #include "glapi/glapi.h"
  36. #include "stw_ext_gallium.h"
  37. #include "stw_device.h"
  38. #include "stw_icd.h"
  39.  
  40. struct stw_extension_entry
  41. {
  42.    const char *name;
  43.    PROC proc;
  44. };
  45.  
  46. #define STW_EXTENSION_ENTRY(P) { #P, (PROC) P }
  47.  
  48. static const struct stw_extension_entry stw_extension_entries[] = {
  49.  
  50.    /* WGL_ARB_extensions_string */
  51.    STW_EXTENSION_ENTRY( wglGetExtensionsStringARB ),
  52.  
  53.    /* WGL_ARB_pbuffer */
  54.    STW_EXTENSION_ENTRY( wglCreatePbufferARB ),
  55.    STW_EXTENSION_ENTRY( wglGetPbufferDCARB ),
  56.    STW_EXTENSION_ENTRY( wglReleasePbufferDCARB ),
  57.    STW_EXTENSION_ENTRY( wglDestroyPbufferARB ),
  58.    STW_EXTENSION_ENTRY( wglQueryPbufferARB ),
  59.  
  60.    /* WGL_ARB_pixel_format */
  61.    STW_EXTENSION_ENTRY( wglChoosePixelFormatARB ),
  62.    STW_EXTENSION_ENTRY( wglGetPixelFormatAttribfvARB ),
  63.    STW_EXTENSION_ENTRY( wglGetPixelFormatAttribivARB ),
  64.  
  65.    /* WGL_EXT_extensions_string */
  66.    STW_EXTENSION_ENTRY( wglGetExtensionsStringEXT ),
  67.  
  68.    /* WGL_EXT_swap_interval */
  69.    STW_EXTENSION_ENTRY( wglGetSwapIntervalEXT ),
  70.    STW_EXTENSION_ENTRY( wglSwapIntervalEXT ),
  71.  
  72.    /* WGL_EXT_gallium ? */
  73.    STW_EXTENSION_ENTRY( wglGetGalliumScreenMESA ),
  74.    STW_EXTENSION_ENTRY( wglCreateGalliumContextMESA ),
  75.  
  76.    /* WGL_ARB_create_context */
  77.    STW_EXTENSION_ENTRY( wglCreateContextAttribsARB ),
  78.  
  79.    { NULL, NULL }
  80. };
  81.  
  82. PROC APIENTRY
  83. DrvGetProcAddress(
  84.    LPCSTR lpszProc )
  85. {
  86.    const struct stw_extension_entry *entry;
  87.  
  88.    if (!stw_dev)
  89.       return NULL;
  90.  
  91.    if (lpszProc[0] == 'w' && lpszProc[1] == 'g' && lpszProc[2] == 'l')
  92.       for (entry = stw_extension_entries; entry->name; entry++)
  93.          if (strcmp( lpszProc, entry->name ) == 0)
  94.             return entry->proc;
  95.  
  96.    if (lpszProc[0] == 'g' && lpszProc[1] == 'l')
  97.       return (PROC) _glapi_get_proc_address( lpszProc );
  98.  
  99.    return NULL;
  100. }
  101.