src/video/wincommon/SDL_wingl_c.h

   1 /*
   2     SDL - Simple DirectMedia Layer
   3     Copyright (C) 1997-2009 Sam Lantinga
   4
   5     This library is free software; you can redistribute it and/or
   6     modify it under the terms of the GNU Lesser General Public
   7     License as published by the Free Software Foundation; either
   8     version 2.1 of the License, or (at your option) any later version.
   9
  10     This library is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13     Lesser General Public License for more details.
  14
  15     You should have received a copy of the GNU Lesser General Public
  16     License along with this library; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18
  19     Sam Lantinga
  20     slouken@libsdl.org
  21 */
  22 #include "SDL_config.h"
  23
  24 /* WGL implementation of SDL OpenGL support */
  25
  26 #include "../SDL_sysvideo.h"
  27
  28
  29 struct SDL_PrivateGLData {
  30     int gl_active; /* to stop switching drivers while we have a valid context */
  31
  32 #if SDL_VIDEO_OPENGL
  33     PIXELFORMATDESCRIPTOR GL_pfd;
  34     HDC GL_hdc;
  35     HGLRC GL_hrc;
  36     int pixel_format;
  37     int WGL_ARB_pixel_format;
  38
  39     void * (WINAPI *wglGetProcAddress)(const char *proc);
  40
  41     HGLRC (WINAPI *wglCreateContext)(HDC hdc);
  42
  43     BOOL (WINAPI *wglDeleteContext)(HGLRC hglrc);
  44
  45     BOOL (WINAPI *wglMakeCurrent)(HDC hdc, HGLRC hglrc);
  46
  47     BOOL (WINAPI *wglGetPixelFormatAttribivARB)(HDC hdc, int iPixelFormat,
  48                                                 int iLayerPlane,
  49                                                 UINT nAttributes,
  50                                                 const int *piAttributes,
  51                                                 int *piValues);
  52     void (WINAPI *wglSwapIntervalEXT)(int interval);
  53     int (WINAPI *wglGetSwapIntervalEXT)(void);
  54 #endif /* SDL_VIDEO_OPENGL */
  55 };
  56
  57 /* Old variable names */
  58 #define gl_active       (this->gl_data->gl_active)
  59 #define GL_pfd          (this->gl_data->GL_pfd)
  60 #define GL_hdc          (this->gl_data->GL_hdc)
  61 #define GL_hrc          (this->gl_data->GL_hrc)
  62 #define pixel_format    (this->gl_data->pixel_format)
  63
  64 /* OpenGL functions */
  65 extern int WIN_GL_SetupWindow(_THIS);
  66 extern void WIN_GL_ShutDown(_THIS);
  67 #if SDL_VIDEO_OPENGL
  68 extern int WIN_GL_MakeCurrent(_THIS);
  69 extern int WIN_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
  70 extern void WIN_GL_SwapBuffers(_THIS);
  71 extern void WIN_GL_UnloadLibrary(_THIS);
  72 extern int WIN_GL_LoadLibrary(_THIS, const char* path);
  73 extern void *WIN_GL_GetProcAddress(_THIS, const char* proc);
  74 #endif
  75
  76 #if SDL_VIDEO_OPENGL
  77
  78 #ifndef WGL_ARB_pixel_format
  79 #define WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000
  80 #define WGL_DRAW_TO_WINDOW_ARB         0x2001
  81 #define WGL_DRAW_TO_BITMAP_ARB         0x2002
  82 #define WGL_ACCELERATION_ARB           0x2003
  83 #define WGL_NEED_PALETTE_ARB           0x2004
  84 #define WGL_NEED_SYSTEM_PALETTE_ARB    0x2005
  85 #define WGL_SWAP_LAYER_BUFFERS_ARB     0x2006
  86 #define WGL_SWAP_METHOD_ARB            0x2007
  87 #define WGL_NUMBER_OVERLAYS_ARB        0x2008
  88 #define WGL_NUMBER_UNDERLAYS_ARB       0x2009
  89 #define WGL_TRANSPARENT_ARB            0x200A
  90 #define WGL_TRANSPARENT_RED_VALUE_ARB  0x2037
  91 #define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
  92 #define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
  93 #define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
  94 #define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
  95 #define WGL_SHARE_DEPTH_ARB            0x200C
  96 #define WGL_SHARE_STENCIL_ARB          0x200D
  97 #define WGL_SHARE_ACCUM_ARB            0x200E
  98 #define WGL_SUPPORT_GDI_ARB            0x200F
  99 #define WGL_SUPPORT_OPENGL_ARB         0x2010
 100 #define WGL_DOUBLE_BUFFER_ARB          0x2011
 101 #define WGL_STEREO_ARB                 0x2012
 102 #define WGL_PIXEL_TYPE_ARB             0x2013
 103 #define WGL_COLOR_BITS_ARB             0x2014
 104 #define WGL_RED_BITS_ARB               0x2015
 105 #define WGL_RED_SHIFT_ARB              0x2016
 106 #define WGL_GREEN_BITS_ARB             0x2017
 107 #define WGL_GREEN_SHIFT_ARB            0x2018
 108 #define WGL_BLUE_BITS_ARB              0x2019
 109 #define WGL_BLUE_SHIFT_ARB             0x201A
 110 #define WGL_ALPHA_BITS_ARB             0x201B
 111 #define WGL_ALPHA_SHIFT_ARB            0x201C
 112 #define WGL_ACCUM_BITS_ARB             0x201D
 113 #define WGL_ACCUM_RED_BITS_ARB         0x201E
 114 #define WGL_ACCUM_GREEN_BITS_ARB       0x201F
 115 #define WGL_ACCUM_BLUE_BITS_ARB        0x2020
 116 #define WGL_ACCUM_ALPHA_BITS_ARB       0x2021
 117 #define WGL_DEPTH_BITS_ARB             0x2022
 118 #define WGL_STENCIL_BITS_ARB           0x2023
 119 #define WGL_AUX_BUFFERS_ARB            0x2024
 120 #define WGL_NO_ACCELERATION_ARB        0x2025
 121 #define WGL_GENERIC_ACCELERATION_ARB   0x2026
 122 #define WGL_FULL_ACCELERATION_ARB      0x2027
 123 #define WGL_SWAP_EXCHANGE_ARB          0x2028
 124 #define WGL_SWAP_COPY_ARB              0x2029
 125 #define WGL_SWAP_UNDEFINED_ARB         0x202A
 126 #define WGL_TYPE_RGBA_ARB              0x202B
 127 #define WGL_TYPE_COLORINDEX_ARB        0x202C
 128 #endif
 129
 130 #ifndef WGL_ARB_multisample
 131 #define WGL_SAMPLE_BUFFERS_ARB         0x2041
 132 #define WGL_SAMPLES_ARB                0x2042
 133 #endif
 134
 135 #endif