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annotate src/video/wincommon/SDL_wingl.c @ 4066:58a5055da431 SDL-1.2

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More improvements for bug #373 Show the SDL cursor in the window and the arrow cursor outside the window. This is also supposed to show the SDL cursor when activated, but that code isn't working yet...
author Sam Lantinga <slouken@libsdl.org>
date Sat, 14 Jul 2007 08:27:06 +0000
parents 5c890883360f
children 01dbf7134045
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 WIN_GL_ResetWindow(_THIS)
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38 {
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39 int status = 0;
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40
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41 #ifndef _WIN32_WCE /* FIXME WinCE needs the UNICODE version of CreateWindow() */
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42 /* This doesn't work with DirectX code (see CVS comments) */
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43 /* If we were passed a window, then we can't create a new one */
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44 if ( !SDL_windowid && SDL_strcmp(this->name, "windib") == 0 ) {
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45 /* Save the existing window attributes */
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46 LONG style;
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47 RECT rect = { 0, 0, 0, 0 };
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48 style = GetWindowLong(SDL_Window, GWL_STYLE);
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49 GetWindowRect(SDL_Window, &rect);
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50 DestroyWindow(SDL_Window);
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51 WIN_FlushMessageQueue();
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52
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53 SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
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54 style,
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55 rect.left, rect.top,
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56 (rect.right-rect.left)+1,
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57 (rect.top-rect.bottom)+1,
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58 NULL, NULL, SDL_Instance, NULL);
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59 WIN_FlushMessageQueue();
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60
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61 if ( SDL_Window ) {
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62 this->SetCaption(this, this->wm_title, this->wm_icon);
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63 } else {
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64 SDL_SetError("Couldn't create window");
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65 status = -1;
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66 }
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67 } else
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68 #endif /* !_WIN32_WCE */
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69 {
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70 SDL_SetError("Unable to reset window for OpenGL context");
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71 status = -1;
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72 }
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73 return(status);
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74 }
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75
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76 #if SDL_VIDEO_OPENGL
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77
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78 static int ExtensionSupported(const char *extension, const char *extensions)
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79 {
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80 const char *start;
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81 const char *where, *terminator;
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82
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83 /* Extension names should not have spaces. */
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84 where = SDL_strchr(extension, ' ');
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85 if ( where || *extension == '\0' )
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86 return 0;
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87
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88 if ( ! extensions )
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89 return 0;
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90
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91 /* It takes a bit of care to be fool-proof about parsing the
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92 * OpenGL extensions string. Don't be fooled by sub-strings,
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93 * etc. */
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94
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95 start = extensions;
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96
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97 for (;;)
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98 {
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99 where = SDL_strstr(start, extension);
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100 if (!where) break;
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101
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102 terminator = where + SDL_strlen(extension);
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103 if (where == start || *(where - 1) == ' ')
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104 if (*terminator == ' ' || *terminator == '\0') return 1;
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105
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106 start = terminator;
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107 }
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108
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109 return 0;
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110 }
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111
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112 static int ChoosePixelFormatARB(_THIS, const int *iAttribs, const FLOAT *fAttribs)
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113 {
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114 HWND hwnd;
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115 HDC hdc;
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116 HGLRC hglrc;
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117 const char * (WINAPI *wglGetExtensionsStringARB)(HDC) = 0;
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118 const char *extensions;
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119 int pformat = 0;
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120 UINT matches = 0;
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121
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122 hwnd = CreateWindow(SDL_Appname, SDL_Appname, WS_POPUP | WS_DISABLED,
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123 0, 0, 10, 10,
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124 NULL, NULL, SDL_Instance, NULL);
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125 WIN_FlushMessageQueue();
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126
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127 hdc = GetDC(hwnd);
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128
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129 SetPixelFormat(hdc, ChoosePixelFormat(hdc, &GL_pfd), &GL_pfd);
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130
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131 hglrc = this->gl_data->wglCreateContext(hdc);
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132 if ( hglrc ) {
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133 this->gl_data->wglMakeCurrent(hdc, hglrc);
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134 }
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135
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136 wglGetExtensionsStringARB = (const char * (WINAPI *)(HDC))
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137 this->gl_data->wglGetProcAddress("wglGetExtensionsStringARB");
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138
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139 if( wglGetExtensionsStringARB ) {
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Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
140 extensions = wglGetExtensionsStringARB(hdc);
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
141 } else {
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
142 extensions = NULL;
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
143 }
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
144
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
145 this->gl_data->WGL_ARB_pixel_format = 0;
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
146 if( ExtensionSupported("WGL_ARB_pixel_format", extensions) ) {
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
147 BOOL (WINAPI *wglChoosePixelFormatARB)(HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
148 wglChoosePixelFormatARB =
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
149 (BOOL (WINAPI *)(HDC, const int *, const FLOAT *, UINT, int *, UINT *))
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
150 this->gl_data->wglGetProcAddress("wglChoosePixelFormatARB");
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
151 if( wglChoosePixelFormatARB &&
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
152 wglChoosePixelFormatARB(hdc, iAttribs, fAttribs, 1, &pformat, &matches) && pformat ) {
1315
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
153 this->gl_data->WGL_ARB_pixel_format = 1;
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
154 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
155 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
156
671
338a62f9a528 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 656
diff changeset
157 if ( hglrc ) {
338a62f9a528 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 656
diff changeset
158 this->gl_data->wglMakeCurrent(NULL, NULL);
338a62f9a528 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 656
diff changeset
159 this->gl_data->wglDeleteContext(hglrc);
338a62f9a528 *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 656
diff changeset
160 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
161 ReleaseDC(hwnd, hdc);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
162 DestroyWindow(hwnd);
1523
21b1fbb53f4a (patch tweaked a bit)
Sam Lantinga <slouken@libsdl.org>
parents: 1480
diff changeset
163 WIN_FlushMessageQueue();
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
164
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
165 return pformat;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
166 }
1315
e94b0d7c33bc Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
167
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
168 #endif /* SDL_VIDEO_OPENGL */
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
169
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
170 int WIN_GL_SetupWindow(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
171 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
172 int retval;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
173 #if SDL_VIDEO_OPENGL
373
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
174 int i;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
175 int iAttribs[64];
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
176 int *iAttr;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
177 float fAttribs[1] = { 0 };
1769
290b5baf2fca Fixed bug #215
Sam Lantinga <slouken@libsdl.org>
parents: 1757
diff changeset
178 const GLubyte *(WINAPI *glGetStringFunc)(GLenum);
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
179 const char *wglext;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
180
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181 /* load the gl driver from a default path */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182 if ( ! this->gl_config.driver_loaded ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
183 /* no driver has been loaded, use default (ourselves) */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
184 if ( WIN_GL_LoadLibrary(this, NULL) < 0 ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
185 return(-1);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
186 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
187 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
189 /* Set up the pixel format descriptor with our needed format */
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
190 SDL_memset(&GL_pfd, 0, sizeof(GL_pfd));
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
191 GL_pfd.nSize = sizeof(GL_pfd);
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
192 GL_pfd.nVersion = 1;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
193 GL_pfd.dwFlags = (PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL);
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
194 if ( this->gl_config.double_buffer ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
195 GL_pfd.dwFlags |= PFD_DOUBLEBUFFER;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
196 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
197 if ( this->gl_config.stereo ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
198 GL_pfd.dwFlags |= PFD_STEREO;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
199 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
200 GL_pfd.iPixelType = PFD_TYPE_RGBA;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
201 GL_pfd.cColorBits = this->gl_config.buffer_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
202 GL_pfd.cRedBits = this->gl_config.red_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
203 GL_pfd.cGreenBits = this->gl_config.green_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
204 GL_pfd.cBlueBits = this->gl_config.blue_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
205 GL_pfd.cAlphaBits = this->gl_config.alpha_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
206 GL_pfd.cAccumRedBits = this->gl_config.accum_red_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
207 GL_pfd.cAccumGreenBits = this->gl_config.accum_green_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
208 GL_pfd.cAccumBlueBits = this->gl_config.accum_blue_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
209 GL_pfd.cAccumAlphaBits = this->gl_config.accum_alpha_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
210 GL_pfd.cAccumBits =
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
211 (GL_pfd.cAccumRedBits + GL_pfd.cAccumGreenBits +
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
212 GL_pfd.cAccumBlueBits + GL_pfd.cAccumAlphaBits);
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
213 GL_pfd.cDepthBits = this->gl_config.depth_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
214 GL_pfd.cStencilBits = this->gl_config.stencil_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
215
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
216 /* setup WGL_ARB_pixel_format attribs */
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
217 iAttr = &iAttribs[0];
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
218
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
219 *iAttr++ = WGL_DRAW_TO_WINDOW_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
220 *iAttr++ = GL_TRUE;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
221 *iAttr++ = WGL_ACCELERATION_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
222 *iAttr++ = WGL_FULL_ACCELERATION_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
223 *iAttr++ = WGL_RED_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
224 *iAttr++ = this->gl_config.red_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
225 *iAttr++ = WGL_GREEN_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
226 *iAttr++ = this->gl_config.green_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
227 *iAttr++ = WGL_BLUE_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
228 *iAttr++ = this->gl_config.blue_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
229
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
230 if ( this->gl_config.alpha_size ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
231 *iAttr++ = WGL_ALPHA_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
232 *iAttr++ = this->gl_config.alpha_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
233 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
234
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
235 *iAttr++ = WGL_DOUBLE_BUFFER_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
236 *iAttr++ = this->gl_config.double_buffer;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
237
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
238 *iAttr++ = WGL_DEPTH_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
239 *iAttr++ = this->gl_config.depth_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
240
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
241 if ( this->gl_config.stencil_size ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
242 *iAttr++ = WGL_STENCIL_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
243 *iAttr++ = this->gl_config.stencil_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
244 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
245
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
246 if ( this->gl_config.accum_red_size ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
247 *iAttr++ = WGL_ACCUM_RED_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
248 *iAttr++ = this->gl_config.accum_red_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
249 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
250
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
251 if ( this->gl_config.accum_green_size ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
252 *iAttr++ = WGL_ACCUM_GREEN_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
253 *iAttr++ = this->gl_config.accum_green_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
254 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
255
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
256 if ( this->gl_config.accum_blue_size ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
257 *iAttr++ = WGL_ACCUM_BLUE_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
258 *iAttr++ = this->gl_config.accum_blue_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
259 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
260
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
261 if ( this->gl_config.accum_alpha_size ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
262 *iAttr++ = WGL_ACCUM_ALPHA_BITS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
263 *iAttr++ = this->gl_config.accum_alpha_size;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
264 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
265
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
266 if ( this->gl_config.stereo ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
267 *iAttr++ = WGL_STEREO_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
268 *iAttr++ = GL_TRUE;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
269 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
270
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
271 if ( this->gl_config.multisamplebuffers ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
272 *iAttr++ = WGL_SAMPLE_BUFFERS_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
273 *iAttr++ = this->gl_config.multisamplebuffers;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
274 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
275
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
276 if ( this->gl_config.multisamplesamples ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
277 *iAttr++ = WGL_SAMPLES_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
278 *iAttr++ = this->gl_config.multisamplesamples;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
279 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
280
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
281 if ( this->gl_config.accelerated >= 0 ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
282 *iAttr++ = WGL_ACCELERATION_ARB;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
283 *iAttr++ = (this->gl_config.accelerated ? WGL_GENERIC_ACCELERATION_ARB : WGL_NO_ACCELERATION_ARB);
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
284 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
285
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
286 *iAttr = 0;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
287
373
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
288 for ( i=0; ; ++i ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
289 /* Get the window device context for our OpenGL drawing */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
290 GL_hdc = GetDC(SDL_Window);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
291 if ( GL_hdc == NULL ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
292 SDL_SetError("Unable to get DC for SDL_Window");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
293 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
294 }
0
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parents:
diff changeset
295
373
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
296 /* Choose and set the closest available pixel format */
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
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diff changeset
297 pixel_format = ChoosePixelFormatARB(this, iAttribs, fAttribs);
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
298 if ( !pixel_format ) {
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
299 pixel_format = ChoosePixelFormat(GL_hdc, &GL_pfd);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
300 }
373
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
301 if ( !pixel_format ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
302 SDL_SetError("No matching GL pixel format available");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
303 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
304 }
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
305 if ( !SetPixelFormat(GL_hdc, pixel_format, &GL_pfd) ) {
373
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
306 if ( i == 0 ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
307 /* First time through, try resetting the window */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
308 if ( WIN_GL_ResetWindow(this) < 0 ) {
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
309 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
310 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
311 continue;
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
312 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
313 SDL_SetError("Unable to set HDC pixel format");
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
314 return(-1);
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
315 }
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
316 /* We either succeeded or failed by this point */
c638fde8a824 Fixed setting OpenGL mode multiple times on Windows
Sam Lantinga <slouken@libsdl.org>
parents: 327
diff changeset
317 break;
0
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parents:
diff changeset
318 }
74212992fb08 Initial revision
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parents:
diff changeset
319 DescribePixelFormat(GL_hdc, pixel_format, sizeof(GL_pfd), &GL_pfd);
74212992fb08 Initial revision
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parents:
diff changeset
320
74212992fb08 Initial revision
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parents:
diff changeset
321 GL_hrc = this->gl_data->wglCreateContext(GL_hdc);
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
322 if ( GL_hrc == NULL ) {
0
74212992fb08 Initial revision
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parents:
diff changeset
323 SDL_SetError("Unable to create GL context");
74212992fb08 Initial revision
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parents:
diff changeset
324 return(-1);
74212992fb08 Initial revision
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parents:
diff changeset
325 }
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
326 if ( WIN_GL_MakeCurrent(this) < 0 ) {
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
327 return(-1);
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
328 }
0
74212992fb08 Initial revision
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parents:
diff changeset
329 gl_active = 1;
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
330
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
331 /* Get the wglGetPixelFormatAttribivARB pointer for the context */
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
332 if ( this->gl_data->WGL_ARB_pixel_format ) {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
333 this->gl_data->wglGetPixelFormatAttribivARB =
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
334 (BOOL (WINAPI *)(HDC, int, int, UINT, const int *, int *))
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
335 this->gl_data->wglGetProcAddress("wglGetPixelFormatAttribivARB");
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
336 } else {
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
337 this->gl_data->wglGetPixelFormatAttribivARB = NULL;
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
338 }
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
339
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
340 /* Vsync control under Windows. Checking glGetString here is
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
341 * somewhat a documented and reliable hack - it was originally
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
342 * as a feature added by mistake, but since so many people rely
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
343 * on it, it will not be removed. strstr should be safe here.*/
1754
c67921b517c3 Date: Sun, 30 Apr 2006 14:20:05 +1000
Sam Lantinga <slouken@libsdl.org>
parents: 1737
diff changeset
344 glGetStringFunc = WIN_GL_GetProcAddress(this, "glGetString");
c67921b517c3 Date: Sun, 30 Apr 2006 14:20:05 +1000
Sam Lantinga <slouken@libsdl.org>
parents: 1737
diff changeset
345 if ( glGetStringFunc ) {
1757
ac282d472a2e Yeah, that's what I meant. :)
Sam Lantinga <slouken@libsdl.org>
parents: 1754
diff changeset
346 wglext = (const char *)glGetStringFunc(GL_EXTENSIONS);
1754
c67921b517c3 Date: Sun, 30 Apr 2006 14:20:05 +1000
Sam Lantinga <slouken@libsdl.org>
parents: 1737
diff changeset
347 } else {
c67921b517c3 Date: Sun, 30 Apr 2006 14:20:05 +1000
Sam Lantinga <slouken@libsdl.org>
parents: 1737
diff changeset
348 /* Uh oh, something is seriously wrong here... */
c67921b517c3 Date: Sun, 30 Apr 2006 14:20:05 +1000
Sam Lantinga <slouken@libsdl.org>
parents: 1737
diff changeset
349 wglext = NULL;
c67921b517c3 Date: Sun, 30 Apr 2006 14:20:05 +1000
Sam Lantinga <slouken@libsdl.org>
parents: 1737
diff changeset
350 }
1880
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
351 if ( wglext && SDL_strstr(wglext, "WGL_EXT_swap_control") ) {
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
352 this->gl_data->wglSwapIntervalEXT = WIN_GL_GetProcAddress(this, "wglSwapIntervalEXT");
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
353 this->gl_data->wglGetSwapIntervalEXT = WIN_GL_GetProcAddress(this, "wglGetSwapIntervalEXT");
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
354 } else {
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
355 this->gl_data->wglSwapIntervalEXT = NULL;
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
356 this->gl_data->wglGetSwapIntervalEXT = NULL;
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
357 }
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
358 if ( this->gl_config.swap_control >= 0 ) {
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
359 if ( this->gl_data->wglSwapIntervalEXT ) {
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
360 this->gl_data->wglSwapIntervalEXT(this->gl_config.swap_control);
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
361 }
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
362 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 #else
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364 SDL_SetError("WIN driver not configured with OpenGL");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 if ( gl_active ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 retval = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 retval = -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 return(retval);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374 void WIN_GL_ShutDown(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
376 #if SDL_VIDEO_OPENGL
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
377 /* Clean up OpenGL */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 if ( GL_hrc ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379 this->gl_data->wglMakeCurrent(NULL, NULL);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 this->gl_data->wglDeleteContext(GL_hrc);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381 GL_hrc = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
383 if ( GL_hdc ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384 ReleaseDC(SDL_Window, GL_hdc);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385 GL_hdc = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
387 gl_active = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
388
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 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
390 #endif /* SDL_VIDEO_OPENGL */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
393 #if SDL_VIDEO_OPENGL
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 /* Make the current context active */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396 int WIN_GL_MakeCurrent(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398 int retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 retval = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 if ( ! this->gl_data->wglMakeCurrent(GL_hdc, GL_hrc) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402 SDL_SetError("Unable to make GL context current");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 retval = -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 return(retval);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407
3937
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
408 /* Get attribute data from wgl. */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 int WIN_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 int retval;
3937
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
412
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
413 if (attrib == SDL_GL_SWAP_CONTROL) {
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
414 if ( this->gl_data->wglGetSwapIntervalEXT ) {
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
415 *value = this->gl_data->wglGetSwapIntervalEXT();
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
416 return 0;
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
417 }
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
418 return -1;
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
419 }
5c6e937518c6 Let Windows OpenGL users use SDL_GL_SWAP_CONTROL even if WGL_ARB_pixel_format
Ryan C. Gordon <icculus@icculus.org>
parents: 1880
diff changeset
420
4042
f9d0b64cc7b9 I think this fixes bug #261
Sam Lantinga <slouken@libsdl.org>
parents: 3937
diff changeset
421 if ( this->gl_data->wglGetPixelFormatAttribivARB ) {
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
422 int wgl_attrib;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
423
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
424 switch(attrib) {
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
425 case SDL_GL_RED_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
426 wgl_attrib = WGL_RED_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
427 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
428 case SDL_GL_GREEN_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
429 wgl_attrib = WGL_GREEN_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
430 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
431 case SDL_GL_BLUE_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
432 wgl_attrib = WGL_BLUE_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
433 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
434 case SDL_GL_ALPHA_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
435 wgl_attrib = WGL_ALPHA_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
436 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
437 case SDL_GL_DOUBLEBUFFER:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
438 wgl_attrib = WGL_DOUBLE_BUFFER_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
439 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
440 case SDL_GL_BUFFER_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
441 wgl_attrib = WGL_COLOR_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
442 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
443 case SDL_GL_DEPTH_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
444 wgl_attrib = WGL_DEPTH_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
445 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
446 case SDL_GL_STENCIL_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
447 wgl_attrib = WGL_STENCIL_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
448 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
449 case SDL_GL_ACCUM_RED_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
450 wgl_attrib = WGL_ACCUM_RED_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
451 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
452 case SDL_GL_ACCUM_GREEN_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
453 wgl_attrib = WGL_ACCUM_GREEN_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
454 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
455 case SDL_GL_ACCUM_BLUE_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
456 wgl_attrib = WGL_ACCUM_BLUE_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
457 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
458 case SDL_GL_ACCUM_ALPHA_SIZE:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
459 wgl_attrib = WGL_ACCUM_ALPHA_BITS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
460 break;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
461 case SDL_GL_STEREO:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
462 wgl_attrib = WGL_STEREO_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
463 break;
656
864e2d2a9a55 Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents: 655
diff changeset
464 case SDL_GL_MULTISAMPLEBUFFERS:
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
465 wgl_attrib = WGL_SAMPLE_BUFFERS_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
466 break;
656
864e2d2a9a55 Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents: 655
diff changeset
467 case SDL_GL_MULTISAMPLESAMPLES:
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
468 wgl_attrib = WGL_SAMPLES_ARB;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
469 break;
1737
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
470 case SDL_GL_ACCELERATED_VISUAL:
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
471 wgl_attrib = WGL_ACCELERATION_ARB;
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
472 this->gl_data->wglGetPixelFormatAttribivARB(GL_hdc, pixel_format, 0, 1, &wgl_attrib, value);
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
473 if ( *value == WGL_NO_ACCELERATION_ARB ) {
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
474 *value = SDL_FALSE;
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
475 } else {
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
476 *value = SDL_TRUE;
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
477 }
eacc5bc01d1c Implemented bug #5
Sam Lantinga <slouken@libsdl.org>
parents: 1736
diff changeset
478 return 0;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
479 default:
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
480 return(-1);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
481 }
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
482 this->gl_data->wglGetPixelFormatAttribivARB(GL_hdc, pixel_format, 0, 1, &wgl_attrib, value);
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
483
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
484 return 0;
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
485 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
487 retval = 0;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
488 switch ( attrib ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489 case SDL_GL_RED_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
490 *value = GL_pfd.cRedBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
491 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
492 case SDL_GL_GREEN_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
493 *value = GL_pfd.cGreenBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
494 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495 case SDL_GL_BLUE_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
496 *value = GL_pfd.cBlueBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
497 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
498 case SDL_GL_ALPHA_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
499 *value = GL_pfd.cAlphaBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
501 case SDL_GL_DOUBLEBUFFER:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
502 if ( GL_pfd.dwFlags & PFD_DOUBLEBUFFER ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
503 *value = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
504 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505 *value = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
507 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
508 case SDL_GL_BUFFER_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509 *value = GL_pfd.cColorBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
510 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
511 case SDL_GL_DEPTH_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 *value = GL_pfd.cDepthBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514 case SDL_GL_STENCIL_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515 *value = GL_pfd.cStencilBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 case SDL_GL_ACCUM_RED_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 *value = GL_pfd.cAccumRedBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 case SDL_GL_ACCUM_GREEN_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 *value = GL_pfd.cAccumGreenBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 case SDL_GL_ACCUM_BLUE_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 *value = GL_pfd.cAccumBlueBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 case SDL_GL_ACCUM_ALPHA_SIZE:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527 *value = GL_pfd.cAccumAlphaBits;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 break;
450
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
529 case SDL_GL_STEREO:
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
530 if ( GL_pfd.dwFlags & PFD_STEREO ) {
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
531 *value = 1;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
532 } else {
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
533 *value = 0;
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
534 }
8a43e0cbf02f Added SDL_GL_STEREO for stereoscopic OpenGL contexts
Sam Lantinga <slouken@libsdl.org>
parents: 373
diff changeset
535 break;
1261
031e093ba2a5 Date: Thu, 04 Sep 2003 02:12:35 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 889
diff changeset
536 case SDL_GL_MULTISAMPLEBUFFERS:
031e093ba2a5 Date: Thu, 04 Sep 2003 02:12:35 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 889
diff changeset
537 *value = 0;
031e093ba2a5 Date: Thu, 04 Sep 2003 02:12:35 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 889
diff changeset
538 break;
031e093ba2a5 Date: Thu, 04 Sep 2003 02:12:35 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 889
diff changeset
539 case SDL_GL_MULTISAMPLESAMPLES:
031e093ba2a5 Date: Thu, 04 Sep 2003 02:12:35 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 889
diff changeset
540 *value = 1;
031e093ba2a5 Date: Thu, 04 Sep 2003 02:12:35 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 889
diff changeset
541 break;
1880
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
542 case SDL_GL_SWAP_CONTROL:
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
543 if ( this->gl_data->wglGetSwapIntervalEXT ) {
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
544 *value = this->gl_data->wglGetSwapIntervalEXT();
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
545 return 0;
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
546 } else {
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
547 return -1;
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
548 }
9d940db55a91 Fixed bug #260
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
549 break;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
550 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 retval = -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552 break;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
554 return retval;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
555 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
556
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
557 void WIN_GL_SwapBuffers(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
558 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
559 SwapBuffers(GL_hdc);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
560 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
561
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
562 void WIN_GL_UnloadLibrary(_THIS)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
563 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564 if ( this->gl_config.driver_loaded ) {
74212992fb08 Initial revision
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parents:
diff changeset
565 FreeLibrary((HMODULE)this->gl_config.dll_handle);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566
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parents:
diff changeset
567 this->gl_data->wglGetProcAddress = NULL;
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parents:
diff changeset
568 this->gl_data->wglCreateContext = NULL;
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parents:
diff changeset
569 this->gl_data->wglDeleteContext = NULL;
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parents:
diff changeset
570 this->gl_data->wglMakeCurrent = NULL;
655
9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents: 453
diff changeset
571 this->gl_data->wglGetPixelFormatAttribivARB = NULL;
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
572 this->gl_data->wglSwapIntervalEXT = NULL;
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
573 this->gl_data->wglGetSwapIntervalEXT = NULL;
0
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parents:
diff changeset
574
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parents:
diff changeset
575 this->gl_config.dll_handle = NULL;
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parents:
diff changeset
576 this->gl_config.driver_loaded = 0;
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parents:
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577 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
578 }
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parents:
diff changeset
579
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parents:
diff changeset
580 /* Passing a NULL path means load pointers from the application */
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parents:
diff changeset
581 int WIN_GL_LoadLibrary(_THIS, const char* path)
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
582 {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
583 HMODULE handle;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
584
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parents:
diff changeset
585 if ( gl_active ) {
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parents:
diff changeset
586 SDL_SetError("OpenGL context already created");
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parents:
diff changeset
587 return -1;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
588 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
589
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
590 if ( path == NULL ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
591 path = DEFAULT_GL_DRIVER_PATH;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
592 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
593 handle = LoadLibrary(path);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
594 if ( handle == NULL ) {
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595 SDL_SetError("Could not load OpenGL library");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
596 return -1;
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
597 }
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
598
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
599 /* Unload the old driver and reset the pointers */
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
600 WIN_GL_UnloadLibrary(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
601
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
602 /* Load new function pointers */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
603 SDL_memset(this->gl_data, 0, sizeof(*this->gl_data));
0
74212992fb08 Initial revision
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parents:
diff changeset
604 this->gl_data->wglGetProcAddress = (void * (WINAPI *)(const char *))
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
605 GetProcAddress(handle, "wglGetProcAddress");
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
606 this->gl_data->wglCreateContext = (HGLRC (WINAPI *)(HDC))
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
607 GetProcAddress(handle, "wglCreateContext");
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
608 this->gl_data->wglDeleteContext = (BOOL (WINAPI *)(HGLRC))
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
609 GetProcAddress(handle, "wglDeleteContext");
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
610 this->gl_data->wglMakeCurrent = (BOOL (WINAPI *)(HDC, HGLRC))
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
611 GetProcAddress(handle, "wglMakeCurrent");
1736
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
612 this->gl_data->wglSwapIntervalEXT = (void (WINAPI *)(int))
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
613 GetProcAddress(handle, "wglSwapIntervalEXT");
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
614 this->gl_data->wglGetSwapIntervalEXT = (int (WINAPI *)(void))
3b2a92126f4d Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents: 1527
diff changeset
615 GetProcAddress(handle, "wglGetSwapIntervalEXT");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
616
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
617 if ( (this->gl_data->wglGetProcAddress == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
618 (this->gl_data->wglCreateContext == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
619 (this->gl_data->wglDeleteContext == NULL) ||
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
620 (this->gl_data->wglMakeCurrent == NULL) ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
621 SDL_SetError("Could not retrieve OpenGL functions");
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
622 FreeLibrary(handle);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
623 return -1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
624 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
625
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
626 this->gl_config.dll_handle = handle;
1379
c0a74f199ecf Use only safe string functions
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
627 SDL_strlcpy(this->gl_config.driver_path, path, SDL_arraysize(this->gl_config.driver_path));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
628 this->gl_config.driver_loaded = 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
629 return 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
630 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
631
74212992fb08 Initial revision
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parents:
diff changeset
632 void *WIN_GL_GetProcAddress(_THIS, const char* proc)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
633 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
634 void *func;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
635
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
636 /* This is to pick up extensions */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
637 func = this->gl_data->wglGetProcAddress(proc);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
638 if ( ! func ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
639 /* This is probably a normal GL function */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
640 func = GetProcAddress(this->gl_config.dll_handle, proc);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
641 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
642 return func;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
643 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
644
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
645 #endif /* SDL_VIDEO_OPENGL */