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annotate src/video/wincommon/SDL_wingl.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 14717b52abc0
children 4da1ee79c9af
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* WGL implementation of SDL OpenGL support */
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25
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26 #if SDL_VIDEO_OPENGL
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27 #include "SDL_opengl.h"
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28 #endif
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29 #include "SDL_lowvideo.h"
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30 #include "SDL_wingl_c.h"
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31
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32 #if SDL_VIDEO_OPENGL
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33 #define DEFAULT_GL_DRIVER_PATH "OPENGL32.DLL"
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34 #endif
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35
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36 /* If setting the HDC fails, we may need to recreate the window (MSDN) */
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37 static int
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38 WIN_GL_ResetWindow (_THIS)
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39 {
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40 int status = 0;
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41
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42 #ifndef _WIN32_WCE /* FIXME WinCE needs the UNICODE version of CreateWindow() */
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43 /* This doesn't work with DirectX code (see CVS comments) */
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44 /* If we were passed a window, then we can't create a new one */
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45 if (!SDL_windowid && SDL_strcmp (this->name, "windib") == 0) {
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46 /* Save the existing window attributes */
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47 LONG style;
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48 RECT rect = { 0, 0, 0, 0 };
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49 style = GetWindowLong (SDL_Window, GWL_STYLE);
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50 GetWindowRect (SDL_Window, &rect);
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51 DestroyWindow (SDL_Window);
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52 WIN_FlushMessageQueue ();
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53
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54 SDL_Window = CreateWindow (SDL_Appname, SDL_Appname,
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55 style,
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56 rect.left, rect.top,
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57 (rect.right - rect.left) + 1,
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58 (rect.top - rect.bottom) + 1,
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59 NULL, NULL, SDL_Instance, NULL);
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60 WIN_FlushMessageQueue ();
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61
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62 if (SDL_Window) {
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63 this->SetCaption (this, this->wm_title, this->wm_icon);
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64 } else {
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65 SDL_SetError ("Couldn't create window");
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66 status = -1;
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67 }
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68 } else
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69 #endif /* !_WIN32_WCE */
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70 {
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71 SDL_SetError ("Unable to reset window for OpenGL context");
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72 status = -1;
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73 }
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74 return (status);
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75 }
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76
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77 #if SDL_VIDEO_OPENGL
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78
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79 static int
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80 ExtensionSupported (const char *extension, const char *extensions)
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81 {
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82 const char *start;
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83 const char *where, *terminator;
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84
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85 /* Extension names should not have spaces. */
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86 where = SDL_strchr (extension, ' ');
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87 if (where || *extension == '\0')
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88 return 0;
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89
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90 if (!extensions)
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91 return 0;
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92
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93 /* It takes a bit of care to be fool-proof about parsing the
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94 * OpenGL extensions string. Don't be fooled by sub-strings,
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95 * etc. */
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96
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97 start = extensions;
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98
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99 for (;;) {
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100 where = SDL_strstr (start, extension);
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101 if (!where)
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102 break;
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103
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104 terminator = where + SDL_strlen (extension);
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105 if (where == start || *(where - 1) == ' ')
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106 if (*terminator == ' ' || *terminator == '\0')
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107 return 1;
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108
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109 start = terminator;
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110 }
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111
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112 return 0;
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113 }
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114
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115 static void
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116 Init_WGL_ARB_extensions (_THIS)
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117 {
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118 HWND hwnd;
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119 HDC hdc;
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120 HGLRC hglrc;
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121 int pformat;
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122 const char *(WINAPI * wglGetExtensionsStringARB) (HDC) = 0;
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123 const char *extensions;
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124
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125 hwnd = CreateWindow (SDL_Appname, SDL_Appname, WS_POPUP | WS_DISABLED,
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126 0, 0, 10, 10, NULL, NULL, SDL_Instance, NULL);
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127 WIN_FlushMessageQueue ();
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128
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129 hdc = GetDC (hwnd);
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130
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131 pformat = ChoosePixelFormat (hdc, &GL_pfd);
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132 SetPixelFormat (hdc, pformat, &GL_pfd);
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133
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134 hglrc = this->gl_data->wglCreateContext (hdc);
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135 if (hglrc) {
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136 this->gl_data->wglMakeCurrent (hdc, hglrc);
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137 }
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138
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139 wglGetExtensionsStringARB = (const char *(WINAPI *) (HDC))
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140 this->gl_data->wglGetProcAddress ("wglGetExtensionsStringARB");
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141
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142 if (wglGetExtensionsStringARB) {
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143 extensions = wglGetExtensionsStringARB (hdc);
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144 } else {
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145 extensions = NULL;
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146 }
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147
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148 this->gl_data->WGL_ARB_pixel_format = 0;
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149 if (ExtensionSupported ("WGL_ARB_pixel_format", extensions)) {
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150 this->gl_data->wglChoosePixelFormatARB = (BOOL (WINAPI *)
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151 (HDC, const int *,
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152 const FLOAT *, UINT, int *,
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153 UINT *)) this->gl_data->
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154 wglGetProcAddress ("wglChoosePixelFormatARB");
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155 this->gl_data->wglGetPixelFormatAttribivARB =
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156 (BOOL (WINAPI *) (HDC, int, int, UINT, const int *, int *))
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157 this->gl_data->wglGetProcAddress ("wglGetPixelFormatAttribivARB");
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158
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159 if ((this->gl_data->wglChoosePixelFormatARB != NULL) &&
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160 (this->gl_data->wglGetPixelFormatAttribivARB != NULL)) {
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161 this->gl_data->WGL_ARB_pixel_format = 1;
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162 }
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163 }
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164
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165 if (hglrc) {
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166 this->gl_data->wglMakeCurrent (NULL, NULL);
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167 this->gl_data->wglDeleteContext (hglrc);
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168 }
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169 ReleaseDC (hwnd, hdc);
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170 DestroyWindow (hwnd);
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171 WIN_FlushMessageQueue ();
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172 }
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173
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174 #endif /* SDL_VIDEO_OPENGL */
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175
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176 int
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177 WIN_GL_SetupWindow (_THIS)
0
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178 {
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179 int retval;
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180 #if SDL_VIDEO_OPENGL
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181 int i;
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182 unsigned int matching;
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183 int iAttribs[64];
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184 int *iAttr;
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185 float fAttribs[1] = { 0 };
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186 const GLubyte *(WINAPI * glGetStringFunc) (GLenum);
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187 const char *wglext;
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188
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189 /* load the gl driver from a default path */
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190 if (!this->gl_config.driver_loaded) {
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191 /* no driver has been loaded, use default (ourselves) */
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192 if (WIN_GL_LoadLibrary (this, NULL) < 0) {
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193 return (-1);
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194 }
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195 }
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196
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197 for (i = 0;; ++i) {
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198 /* Get the window device context for our OpenGL drawing */
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199 GL_hdc = GetDC (SDL_Window);
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200 if (GL_hdc == NULL) {
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201 SDL_SetError ("Unable to get DC for SDL_Window");
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202 return (-1);
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203 }
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diff changeset
204
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205 /* Set up the pixel format descriptor with our needed format */
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206 SDL_memset (&GL_pfd, 0, sizeof (GL_pfd));
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207 GL_pfd.nSize = sizeof (GL_pfd);
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208 GL_pfd.nVersion = 1;
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209 GL_pfd.dwFlags = (PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL);
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210 if (this->gl_config.double_buffer) {
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211 GL_pfd.dwFlags |= PFD_DOUBLEBUFFER;
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212 }
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diff changeset
213 if (this->gl_config.stereo) {
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214 GL_pfd.dwFlags |= PFD_STEREO;
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215 }
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216 GL_pfd.iPixelType = PFD_TYPE_RGBA;
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217 GL_pfd.cColorBits = this->gl_config.buffer_size;
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218 GL_pfd.cRedBits = this->gl_config.red_size;
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219 GL_pfd.cGreenBits = this->gl_config.green_size;
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220 GL_pfd.cBlueBits = this->gl_config.blue_size;
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diff changeset
221 GL_pfd.cAlphaBits = this->gl_config.alpha_size;
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222 GL_pfd.cAccumRedBits = this->gl_config.accum_red_size;
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223 GL_pfd.cAccumGreenBits = this->gl_config.accum_green_size;
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224 GL_pfd.cAccumBlueBits = this->gl_config.accum_blue_size;
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225 GL_pfd.cAccumAlphaBits = this->gl_config.accum_alpha_size;
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226 GL_pfd.cAccumBits =
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227 (GL_pfd.cAccumRedBits + GL_pfd.cAccumGreenBits +
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228 GL_pfd.cAccumBlueBits + GL_pfd.cAccumAlphaBits);
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229 GL_pfd.cDepthBits = this->gl_config.depth_size;
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230 GL_pfd.cStencilBits = this->gl_config.stencil_size;
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diff changeset
231
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diff changeset
232 /* initialize WGL_ARB_pixel_format */
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233 Init_WGL_ARB_extensions (this);
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diff changeset
234
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diff changeset
235 /* setup WGL_ARB_pixel_format attribs */
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diff changeset
236 iAttr = &iAttribs[0];
655
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parents: 453
diff changeset
237
1662
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diff changeset
238 *iAttr++ = WGL_DRAW_TO_WINDOW_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
239 *iAttr++ = GL_TRUE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
240 *iAttr++ = WGL_ACCELERATION_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
241 *iAttr++ = WGL_FULL_ACCELERATION_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
242 *iAttr++ = WGL_RED_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
243 *iAttr++ = this->gl_config.red_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
244 *iAttr++ = WGL_GREEN_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
245 *iAttr++ = this->gl_config.green_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
246 *iAttr++ = WGL_BLUE_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
247 *iAttr++ = this->gl_config.blue_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
248
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
249 if (this->gl_config.alpha_size) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
250 *iAttr++ = WGL_ALPHA_BITS_ARB;
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parents: 1659
diff changeset
251 *iAttr++ = this->gl_config.alpha_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
252 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
253
1662
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diff changeset
254 *iAttr++ = WGL_DOUBLE_BUFFER_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
255 *iAttr++ = this->gl_config.double_buffer;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
256
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
257 *iAttr++ = WGL_DEPTH_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
258 *iAttr++ = this->gl_config.depth_size;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
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parents: 453
diff changeset
259
1662
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parents: 1659
diff changeset
260 if (this->gl_config.stencil_size) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
261 *iAttr++ = WGL_STENCIL_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
262 *iAttr++ = this->gl_config.stencil_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
263 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
264
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
265 if (this->gl_config.accum_red_size) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
266 *iAttr++ = WGL_ACCUM_RED_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
267 *iAttr++ = this->gl_config.accum_red_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
268 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
269
1662
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diff changeset
270 if (this->gl_config.accum_green_size) {
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diff changeset
271 *iAttr++ = WGL_ACCUM_GREEN_BITS_ARB;
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diff changeset
272 *iAttr++ = this->gl_config.accum_green_size;
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parents: 1659
diff changeset
273 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
274
1662
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diff changeset
275 if (this->gl_config.accum_blue_size) {
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diff changeset
276 *iAttr++ = WGL_ACCUM_BLUE_BITS_ARB;
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diff changeset
277 *iAttr++ = this->gl_config.accum_blue_size;
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diff changeset
278 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
279
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
280 if (this->gl_config.accum_alpha_size) {
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diff changeset
281 *iAttr++ = WGL_ACCUM_ALPHA_BITS_ARB;
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diff changeset
282 *iAttr++ = this->gl_config.accum_alpha_size;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
283 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
284
1662
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diff changeset
285 if (this->gl_config.stereo) {
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diff changeset
286 *iAttr++ = WGL_STEREO_ARB;
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diff changeset
287 *iAttr++ = GL_TRUE;
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parents: 1659
diff changeset
288 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
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parents: 453
diff changeset
289
1662
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diff changeset
290 if (this->gl_config.multisamplebuffers) {
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diff changeset
291 *iAttr++ = WGL_SAMPLE_BUFFERS_ARB;
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diff changeset
292 *iAttr++ = this->gl_config.multisamplebuffers;
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diff changeset
293 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
294
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
295 if (this->gl_config.multisamplesamples) {
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diff changeset
296 *iAttr++ = WGL_SAMPLES_ARB;
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diff changeset
297 *iAttr++ = this->gl_config.multisamplesamples;
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parents: 1659
diff changeset
298 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
299
1662
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diff changeset
300 if (this->gl_config.accelerated >= 0) {
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diff changeset
301 *iAttr++ = WGL_ACCELERATION_ARB;
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diff changeset
302 *iAttr++ =
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
303 (this->gl_config.
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diff changeset
304 accelerated ? WGL_GENERIC_ACCELERATION_ARB :
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
305 WGL_NO_ACCELERATION_ARB);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
306 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
307
1662
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parents: 1659
diff changeset
308 *iAttr = 0;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
309
1662
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diff changeset
310 /* Choose and set the closest available pixel format */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
311 if (!this->gl_data->WGL_ARB_pixel_format ||
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
312 !this->gl_data->wglChoosePixelFormatARB (GL_hdc, iAttribs,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
313 fAttribs, 1,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
314 &pixel_format, &matching)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
315 || !matching) {
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parents: 1659
diff changeset
316 pixel_format = ChoosePixelFormat (GL_hdc, &GL_pfd);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
317 this->gl_data->WGL_ARB_pixel_format = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
318 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
319 if (!pixel_format) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
320 SDL_SetError ("No matching GL pixel format available");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
321 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
322 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
323 if (!SetPixelFormat (GL_hdc, pixel_format, &GL_pfd)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
324 if (i == 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
325 /* First time through, try resetting the window */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
326 if (WIN_GL_ResetWindow (this) < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
327 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
328 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
329 continue;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
330 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
331 SDL_SetError ("Unable to set HDC pixel format");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
332 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
333 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
334 /* We either succeeded or failed by this point */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
335 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
336 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
337 DescribePixelFormat (GL_hdc, pixel_format, sizeof (GL_pfd), &GL_pfd);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
339 GL_hrc = this->gl_data->wglCreateContext (GL_hdc);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
340 if (GL_hrc == NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
341 SDL_SetError ("Unable to create GL context");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
342 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
343 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
344 if (WIN_GL_MakeCurrent (this) < 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
345 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
346 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
347 gl_active = 1;
1656
96c2f89cc7e1 SDL-trunk-1.3-merge-1
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
348
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
349 /* Vsync control under Windows. Checking glGetString here is
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
350 * somewhat a documented and reliable hack - it was originally
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
351 * as a feature added by mistake, but since so many people rely
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
352 * on it, it will not be removed. strstr should be safe here.*/
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
353 glGetStringFunc = WIN_GL_GetProcAddress (this, "glGetString");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
354 if (glGetStringFunc) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
355 wglext = (const char *) glGetStringFunc (GL_EXTENSIONS);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
356 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
357 /* Uh oh, something is seriously wrong here... */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
358 wglext = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
359 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
360 if (!wglext || !SDL_strstr (wglext, "WGL_EXT_swap_control")) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
361 this->gl_data->wglSwapIntervalEXT = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
362 this->gl_data->wglGetSwapIntervalEXT = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
363 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
364 if (this->gl_config.swap_control >= 0) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
365 if (this->gl_data->wglSwapIntervalEXT) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
366 this->gl_data->wglSwapIntervalEXT (this->gl_config.swap_control);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
367 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
368 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 #else
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
370 SDL_SetError ("WIN driver not configured with OpenGL");
0
74212992fb08 Initial revision
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parents:
diff changeset
371 #endif
1662
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parents: 1659
diff changeset
372 if (gl_active) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
373 retval = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
374 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
375 retval = -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
376 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
377 return (retval);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
380 void
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
381 WIN_GL_ShutDown (_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
383 #if SDL_VIDEO_OPENGL
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
384 /* Clean up OpenGL */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
385 if (GL_hrc) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
386 this->gl_data->wglMakeCurrent (NULL, NULL);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
387 this->gl_data->wglDeleteContext (GL_hrc);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
388 GL_hrc = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
389 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
390 if (GL_hdc) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
391 ReleaseDC (SDL_Window, GL_hdc);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
392 GL_hdc = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
393 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
394 gl_active = 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
396 WIN_GL_UnloadLibrary (this);
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
397 #endif /* SDL_VIDEO_OPENGL */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
400 #if SDL_VIDEO_OPENGL
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 /* Make the current context active */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
403 int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
404 WIN_GL_MakeCurrent (_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
406 int retval;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
408 retval = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
409 if (!this->gl_data->wglMakeCurrent (GL_hdc, GL_hrc)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
410 SDL_SetError ("Unable to make GL context current");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
411 retval = -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
412 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
413 return (retval);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 /* Get attribute data from glX. */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
417 int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
418 WIN_GL_GetAttribute (_THIS, SDL_GLattr attrib, int *value)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
420 int retval;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
421
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
422 if (this->gl_data->WGL_ARB_pixel_format) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
423 int wgl_attrib;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
424
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
425 switch (attrib) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
426 case SDL_GL_RED_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
427 wgl_attrib = WGL_RED_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
428 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
429 case SDL_GL_GREEN_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
430 wgl_attrib = WGL_GREEN_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
431 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
432 case SDL_GL_BLUE_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
433 wgl_attrib = WGL_BLUE_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
434 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
435 case SDL_GL_ALPHA_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
436 wgl_attrib = WGL_ALPHA_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
437 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
438 case SDL_GL_DOUBLEBUFFER:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
439 wgl_attrib = WGL_DOUBLE_BUFFER_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
440 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
441 case SDL_GL_BUFFER_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
442 wgl_attrib = WGL_COLOR_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
443 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
444 case SDL_GL_DEPTH_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
445 wgl_attrib = WGL_DEPTH_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
446 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
447 case SDL_GL_STENCIL_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
448 wgl_attrib = WGL_STENCIL_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
449 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
450 case SDL_GL_ACCUM_RED_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
451 wgl_attrib = WGL_ACCUM_RED_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
452 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
453 case SDL_GL_ACCUM_GREEN_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
454 wgl_attrib = WGL_ACCUM_GREEN_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
455 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
456 case SDL_GL_ACCUM_BLUE_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
457 wgl_attrib = WGL_ACCUM_BLUE_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
458 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
459 case SDL_GL_ACCUM_ALPHA_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
460 wgl_attrib = WGL_ACCUM_ALPHA_BITS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
461 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
462 case SDL_GL_STEREO:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
463 wgl_attrib = WGL_STEREO_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
464 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
465 case SDL_GL_MULTISAMPLEBUFFERS:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
466 wgl_attrib = WGL_SAMPLE_BUFFERS_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
467 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
468 case SDL_GL_MULTISAMPLESAMPLES:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
469 wgl_attrib = WGL_SAMPLES_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
470 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
471 case SDL_GL_ACCELERATED_VISUAL:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
472 wgl_attrib = WGL_ACCELERATION_ARB;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
473 this->gl_data->wglGetPixelFormatAttribivARB (GL_hdc,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
474 pixel_format, 0,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
475 1, &wgl_attrib,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
476 value);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
477 if (*value == WGL_NO_ACCELERATION_ARB) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
478 *value = SDL_FALSE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
479 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
480 *value = SDL_TRUE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
481 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
482 return 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
483 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
484 case SDL_GL_SWAP_CONTROL:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
485 if (this->gl_data->wglGetSwapIntervalEXT) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
486 return this->gl_data->wglGetSwapIntervalEXT ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
487 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
488 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
489 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
490 default:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
491 return (-1);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
492 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
493 this->gl_data->wglGetPixelFormatAttribivARB (GL_hdc, pixel_format,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
494 0, 1, &wgl_attrib,
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
495 value);
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
496
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
497 return 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
498 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
499
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
500 retval = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
501 switch (attrib) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
502 case SDL_GL_RED_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
503 *value = GL_pfd.cRedBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
504 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
505 case SDL_GL_GREEN_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
506 *value = GL_pfd.cGreenBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
507 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
508 case SDL_GL_BLUE_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
509 *value = GL_pfd.cBlueBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
510 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
511 case SDL_GL_ALPHA_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
512 *value = GL_pfd.cAlphaBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
513 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
514 case SDL_GL_DOUBLEBUFFER:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
515 if (GL_pfd.dwFlags & PFD_DOUBLEBUFFER) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
516 *value = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
517 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
518 *value = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
519 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
520 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
521 case SDL_GL_BUFFER_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
522 *value = GL_pfd.cColorBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
523 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
524 case SDL_GL_DEPTH_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
525 *value = GL_pfd.cDepthBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
526 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
527 case SDL_GL_STENCIL_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
528 *value = GL_pfd.cStencilBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
529 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
530 case SDL_GL_ACCUM_RED_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
531 *value = GL_pfd.cAccumRedBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
532 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
533 case SDL_GL_ACCUM_GREEN_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
534 *value = GL_pfd.cAccumGreenBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
535 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
536 case SDL_GL_ACCUM_BLUE_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
537 *value = GL_pfd.cAccumBlueBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
538 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
539 case SDL_GL_ACCUM_ALPHA_SIZE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
540 *value = GL_pfd.cAccumAlphaBits;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
541 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
542 case SDL_GL_STEREO:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
543 if (GL_pfd.dwFlags & PFD_STEREO) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
544 *value = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
545 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
546 *value = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
547 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
548 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
549 case SDL_GL_MULTISAMPLEBUFFERS:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
550 *value = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
551 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
552 case SDL_GL_MULTISAMPLESAMPLES:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
553 *value = 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
554 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
555 default:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
556 retval = -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
557 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
558 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
559 return retval;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
560 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
561
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
562 void
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
563 WIN_GL_SwapBuffers (_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
565 SwapBuffers (GL_hdc);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
567
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
568 void
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
569 WIN_GL_UnloadLibrary (_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
570 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
571 if (this->gl_config.driver_loaded) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
572 FreeLibrary ((HMODULE) this->gl_config.dll_handle);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
573
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
574 this->gl_data->wglGetProcAddress = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
575 this->gl_data->wglCreateContext = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
576 this->gl_data->wglDeleteContext = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
577 this->gl_data->wglMakeCurrent = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
578 this->gl_data->wglChoosePixelFormatARB = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
579 this->gl_data->wglGetPixelFormatAttribivARB = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
580 this->gl_data->wglSwapIntervalEXT = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
581 this->gl_data->wglGetSwapIntervalEXT = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
582
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
583 this->gl_config.dll_handle = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
584 this->gl_config.driver_loaded = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
585 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
586 }
74212992fb08 Initial revision
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587
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588 /* Passing a NULL path means load pointers from the application */
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589 int
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590 WIN_GL_LoadLibrary (_THIS, const char *path)
0
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591 {
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592 HMODULE handle;
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593
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594 if (gl_active) {
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595 SDL_SetError ("OpenGL context already created");
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596 return -1;
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597 }
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598
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599 if (path == NULL) {
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600 path = DEFAULT_GL_DRIVER_PATH;
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601 }
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602 handle = LoadLibrary (path);
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603 if (handle == NULL) {
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604 SDL_SetError ("Could not load OpenGL library");
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605 return -1;
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606 }
0
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607
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608 /* Unload the old driver and reset the pointers */
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609 WIN_GL_UnloadLibrary (this);
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610
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611 /* Load new function pointers */
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612 SDL_memset (this->gl_data, 0, sizeof (*this->gl_data));
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613 this->gl_data->wglGetProcAddress = (void *(WINAPI *) (const char *))
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614 GetProcAddress (handle, "wglGetProcAddress");
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615 this->gl_data->wglCreateContext = (HGLRC (WINAPI *) (HDC))
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616 GetProcAddress (handle, "wglCreateContext");
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617 this->gl_data->wglDeleteContext = (BOOL (WINAPI *) (HGLRC))
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618 GetProcAddress (handle, "wglDeleteContext");
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619 this->gl_data->wglMakeCurrent = (BOOL (WINAPI *) (HDC, HGLRC))
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620 GetProcAddress (handle, "wglMakeCurrent");
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621 this->gl_data->wglSwapIntervalEXT = (void (WINAPI *) (int))
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622 GetProcAddress (handle, "wglSwapIntervalEXT");
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623 this->gl_data->wglGetSwapIntervalEXT = (int (WINAPI *) (void))
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624 GetProcAddress (handle, "wglGetSwapIntervalEXT");
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625
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626 if ((this->gl_data->wglGetProcAddress == NULL) ||
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627 (this->gl_data->wglCreateContext == NULL) ||
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628 (this->gl_data->wglDeleteContext == NULL) ||
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629 (this->gl_data->wglMakeCurrent == NULL)) {
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630 SDL_SetError ("Could not retrieve OpenGL functions");
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631 FreeLibrary (handle);
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632 return -1;
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633 }
0
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634
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635 this->gl_config.dll_handle = handle;
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636 SDL_strlcpy (this->gl_config.driver_path, path,
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637 SDL_arraysize (this->gl_config.driver_path));
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diff changeset
638 this->gl_config.driver_loaded = 1;
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diff changeset
639 return 0;
0
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640 }
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diff changeset
641
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diff changeset
642 void *
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643 WIN_GL_GetProcAddress (_THIS, const char *proc)
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diff changeset
644 {
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diff changeset
645 void *func;
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646
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647 /* This is to pick up extensions */
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diff changeset
648 func = this->gl_data->wglGetProcAddress (proc);
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diff changeset
649 if (!func) {
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diff changeset
650 /* This is probably a normal GL function */
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651 func = GetProcAddress (this->gl_config.dll_handle, proc);
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652 }
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653 return func;
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654 }
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655
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19418e4422cb New configure-based build system. Still work in progress, but much improved
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diff changeset
656 #endif /* SDL_VIDEO_OPENGL */
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657 /* vi: set ts=4 sw=4 expandtab: */