Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11gl.c @ 4218:50b4ab8f8271 SDL-1.2
Fixed bug #778
Derek Weitzel 2009-08-11 12:17:09 PDT
Window Manager: xorg-x11-twm-1.0.1-3.1
Running through Xdmx. The same application could expand to the full screen
using GLUT (freeglut).
Overview:
While running on a very high resolution display, discovered the maximium width
of the window is 4096.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 21 Sep 2009 09:47:53 +0000 |
parents | 39e748f251c6 |
children | d48035d857d3 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
0 | 4 |
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 |
0 | 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. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 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 |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 #include "SDL_x11video.h" | |
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25 #include "../../events/SDL_events_c.h" |
0 | 26 #include "SDL_x11dga_c.h" |
27 #include "SDL_x11gl_c.h" | |
28 | |
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29 #if defined(__IRIX__) |
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30 /* IRIX doesn't have a GL library versioning system */ |
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31 #define DEFAULT_OPENGL "libGL.so" |
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32 #elif defined(__MACOSX__) |
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33 #define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib" |
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34 #elif defined(__QNXNTO__) |
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35 #define DEFAULT_OPENGL "libGL.so.3" |
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36 #elif defined(__OpenBSD__) |
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37 #define DEFAULT_OPENGL "libGL.so.4.0" |
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38 #else |
0 | 39 #define DEFAULT_OPENGL "libGL.so.1" |
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40 #endif |
0 | 41 |
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*** empty log message ***
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42 #ifndef GLX_ARB_multisample |
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43 #define GLX_ARB_multisample |
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44 #define GLX_SAMPLE_BUFFERS_ARB 100000 |
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45 #define GLX_SAMPLES_ARB 100001 |
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46 #endif |
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47 |
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48 /* GLX_EXT_visual_rating stuff that might not be in the system headers... */ |
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49 #ifndef GLX_VISUAL_CAVEAT_EXT |
1737 | 50 #define GLX_VISUAL_CAVEAT_EXT 0x20 |
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51 #endif |
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52 #ifndef GLX_NONE_EXT |
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53 #define GLX_NONE_EXT 0x8000 |
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54 #endif |
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55 #ifndef GLX_SLOW_VISUAL_EXT |
1737 | 56 #define GLX_SLOW_VISUAL_EXT 0x8001 |
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57 #endif |
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58 #ifndef GLX_NON_CONFORMANT_VISUAL_EXT |
1737 | 59 #define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D |
60 #endif | |
61 | |
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62 |
1737 | 63 #if SDL_VIDEO_OPENGL_GLX |
64 static int glXExtensionSupported(_THIS, const char *extension) | |
65 { | |
66 const char *extensions; | |
67 const char *start; | |
68 const char *where, *terminator; | |
69 | |
70 /* Extension names should not have spaces. */ | |
71 where = SDL_strchr(extension, ' '); | |
72 if ( where || *extension == '\0' ) { | |
73 return 0; | |
74 } | |
75 | |
76 extensions = this->gl_data->glXQueryExtensionsString(GFX_Display,SDL_Screen); | |
77 /* It takes a bit of care to be fool-proof about parsing the | |
78 * OpenGL extensions string. Don't be fooled by sub-strings, etc. | |
79 */ | |
80 | |
81 start = extensions; | |
82 | |
83 for (;;) { | |
84 where = SDL_strstr(start, extension); | |
85 if (!where) break; | |
86 | |
87 terminator = where + strlen(extension); | |
88 if (where == start || *(where - 1) == ' ') | |
89 if (*terminator == ' ' || *terminator == '\0') return 1; | |
90 | |
91 start = terminator; | |
92 } | |
93 return 0; | |
94 } | |
95 #endif /* SDL_VIDEO_OPENGL_GLX */ | |
96 | |
0 | 97 XVisualInfo *X11_GL_GetVisual(_THIS) |
98 { | |
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99 #if SDL_VIDEO_OPENGL_GLX |
0 | 100 /* 64 seems nice. */ |
101 int attribs[64]; | |
102 int i; | |
103 | |
104 /* load the gl driver from a default path */ | |
105 if ( ! this->gl_config.driver_loaded ) { | |
106 /* no driver has been loaded, use default (ourselves) */ | |
107 if ( X11_GL_LoadLibrary(this, NULL) < 0 ) { | |
108 return NULL; | |
109 } | |
110 } | |
111 | |
112 /* See if we already have a window which we must use */ | |
113 if ( SDL_windowid ) { | |
114 XWindowAttributes a; | |
115 XVisualInfo vi_in; | |
116 int out_count; | |
117 | |
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118 XGetWindowAttributes(SDL_Display, SDL_Window, &a); |
0 | 119 vi_in.screen = SDL_Screen; |
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120 vi_in.visualid = XVisualIDFromVisual(a.visual); |
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121 glx_visualinfo = XGetVisualInfo(SDL_Display, |
0 | 122 VisualScreenMask|VisualIDMask, &vi_in, &out_count); |
123 return glx_visualinfo; | |
124 } | |
125 | |
126 /* Setup our GLX attributes according to the gl_config. */ | |
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127 i = 0; |
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128 attribs[i++] = GLX_RGBA; |
0 | 129 attribs[i++] = GLX_RED_SIZE; |
130 attribs[i++] = this->gl_config.red_size; | |
131 attribs[i++] = GLX_GREEN_SIZE; | |
132 attribs[i++] = this->gl_config.green_size; | |
133 attribs[i++] = GLX_BLUE_SIZE; | |
134 attribs[i++] = this->gl_config.blue_size; | |
135 | |
136 if( this->gl_config.alpha_size ) { | |
137 attribs[i++] = GLX_ALPHA_SIZE; | |
138 attribs[i++] = this->gl_config.alpha_size; | |
139 } | |
140 | |
141 if( this->gl_config.buffer_size ) { | |
450
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142 attribs[i++] = GLX_BUFFER_SIZE; |
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143 attribs[i++] = this->gl_config.buffer_size; |
0 | 144 } |
145 | |
146 if( this->gl_config.double_buffer ) { | |
147 attribs[i++] = GLX_DOUBLEBUFFER; | |
148 } | |
149 | |
150 attribs[i++] = GLX_DEPTH_SIZE; | |
151 attribs[i++] = this->gl_config.depth_size; | |
152 | |
153 if( this->gl_config.stencil_size ) { | |
154 attribs[i++] = GLX_STENCIL_SIZE; | |
155 attribs[i++] = this->gl_config.stencil_size; | |
156 } | |
157 | |
158 if( this->gl_config.accum_red_size ) { | |
450
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159 attribs[i++] = GLX_ACCUM_RED_SIZE; |
0 | 160 attribs[i++] = this->gl_config.accum_red_size; |
161 } | |
162 | |
163 if( this->gl_config.accum_green_size ) { | |
450
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164 attribs[i++] = GLX_ACCUM_GREEN_SIZE; |
0 | 165 attribs[i++] = this->gl_config.accum_green_size; |
166 } | |
167 | |
168 if( this->gl_config.accum_blue_size ) { | |
450
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169 attribs[i++] = GLX_ACCUM_BLUE_SIZE; |
0 | 170 attribs[i++] = this->gl_config.accum_blue_size; |
171 } | |
172 | |
173 if( this->gl_config.accum_alpha_size ) { | |
450
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174 attribs[i++] = GLX_ACCUM_ALPHA_SIZE; |
0 | 175 attribs[i++] = this->gl_config.accum_alpha_size; |
176 } | |
177 | |
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178 if( this->gl_config.stereo ) { |
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179 attribs[i++] = GLX_STEREO; |
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180 } |
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181 |
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182 if( this->gl_config.multisamplebuffers ) { |
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183 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB; |
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184 attribs[i++] = this->gl_config.multisamplebuffers; |
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185 } |
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186 |
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187 if( this->gl_config.multisamplesamples ) { |
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188 attribs[i++] = GLX_SAMPLES_ARB; |
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189 attribs[i++] = this->gl_config.multisamplesamples; |
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190 } |
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191 |
1737 | 192 if( this->gl_config.accelerated >= 0 && |
193 glXExtensionSupported(this, "GLX_EXT_visual_rating") ) { | |
194 attribs[i++] = GLX_VISUAL_CAVEAT_EXT; | |
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195 attribs[i++] = GLX_NONE_EXT; |
1737 | 196 } |
197 | |
0 | 198 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */ |
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199 if ( !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { |
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200 attribs[i++] = GLX_X_VISUAL_TYPE; |
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201 attribs[i++] = GLX_DIRECT_COLOR; |
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202 } |
0 | 203 #endif |
204 attribs[i++] = None; | |
205 | |
206 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display, | |
207 SDL_Screen, attribs); | |
208 #ifdef GLX_DIRECT_COLOR | |
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209 if( !glx_visualinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { /* No DirectColor visual? Try again.. */ |
0 | 210 attribs[i-3] = None; |
211 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display, | |
212 SDL_Screen, attribs); | |
213 } | |
214 #endif | |
215 if( !glx_visualinfo ) { | |
216 SDL_SetError( "Couldn't find matching GLX visual"); | |
217 return NULL; | |
218 } | |
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219 /* |
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220 printf("Found GLX visual 0x%x\n", glx_visualinfo->visualid); |
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221 */ |
0 | 222 return glx_visualinfo; |
223 #else | |
224 SDL_SetError("X11 driver not configured with OpenGL"); | |
225 return NULL; | |
226 #endif | |
227 } | |
228 | |
229 int X11_GL_CreateWindow(_THIS, int w, int h) | |
230 { | |
231 int retval; | |
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232 #if SDL_VIDEO_OPENGL_GLX |
0 | 233 XSetWindowAttributes attributes; |
234 unsigned long mask; | |
235 unsigned long black; | |
236 | |
237 black = (glx_visualinfo->visual == DefaultVisual(SDL_Display, | |
238 SDL_Screen)) | |
239 ? BlackPixel(SDL_Display, SDL_Screen) : 0; | |
240 attributes.background_pixel = black; | |
241 attributes.border_pixel = black; | |
242 attributes.colormap = SDL_XColorMap; | |
243 mask = CWBackPixel | CWBorderPixel | CWColormap; | |
244 | |
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245 SDL_Window = XCreateWindow(SDL_Display, WMwindow, |
0 | 246 0, 0, w, h, 0, glx_visualinfo->depth, |
247 InputOutput, glx_visualinfo->visual, | |
248 mask, &attributes); | |
249 if ( !SDL_Window ) { | |
250 SDL_SetError("Could not create window"); | |
251 return -1; | |
252 } | |
253 retval = 0; | |
254 #else | |
255 SDL_SetError("X11 driver not configured with OpenGL"); | |
256 retval = -1; | |
257 #endif | |
258 return(retval); | |
259 } | |
260 | |
261 int X11_GL_CreateContext(_THIS) | |
262 { | |
263 int retval; | |
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264 #if SDL_VIDEO_OPENGL_GLX |
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265 |
0 | 266 /* We do this to create a clean separation between X and GLX errors. */ |
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267 XSync( SDL_Display, False ); |
0 | 268 glx_context = this->gl_data->glXCreateContext(GFX_Display, |
269 glx_visualinfo, NULL, True); | |
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270 XSync( GFX_Display, False ); |
0 | 271 |
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272 if ( glx_context == NULL ) { |
0 | 273 SDL_SetError("Could not create GL context"); |
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274 return(-1); |
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275 } |
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276 if ( X11_GL_MakeCurrent(this) < 0 ) { |
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277 return(-1); |
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278 } |
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279 gl_active = 1; |
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280 |
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281 if ( !glXExtensionSupported(this, "GLX_SGI_swap_control") ) { |
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282 this->gl_data->glXSwapIntervalSGI = NULL; |
0 | 283 } |
1737 | 284 if ( !glXExtensionSupported(this, "GLX_MESA_swap_control") ) { |
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285 this->gl_data->glXSwapIntervalMESA = NULL; |
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286 this->gl_data->glXGetSwapIntervalMESA = NULL; |
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287 } |
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288 if ( this->gl_config.swap_control >= 0 ) { |
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289 if ( this->gl_data->glXSwapIntervalMESA ) { |
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290 this->gl_data->glXSwapIntervalMESA(this->gl_config.swap_control); |
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291 } else if ( this->gl_data->glXSwapIntervalSGI ) { |
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292 this->gl_data->glXSwapIntervalSGI(this->gl_config.swap_control); |
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293 } |
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294 } |
0 | 295 #else |
296 SDL_SetError("X11 driver not configured with OpenGL"); | |
297 #endif | |
298 if ( gl_active ) { | |
299 retval = 0; | |
300 } else { | |
301 retval = -1; | |
302 } | |
303 return(retval); | |
304 } | |
305 | |
306 void X11_GL_Shutdown(_THIS) | |
307 { | |
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308 #if SDL_VIDEO_OPENGL_GLX |
0 | 309 /* Clean up OpenGL */ |
310 if( glx_context ) { | |
311 this->gl_data->glXMakeCurrent(GFX_Display, None, NULL); | |
312 | |
313 if (glx_context != NULL) | |
314 this->gl_data->glXDestroyContext(GFX_Display, glx_context); | |
315 | |
316 glx_context = NULL; | |
317 } | |
318 gl_active = 0; | |
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319 #endif /* SDL_VIDEO_OPENGL_GLX */ |
0 | 320 } |
321 | |
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322 #if SDL_VIDEO_OPENGL_GLX |
0 | 323 |
324 /* Make the current context active */ | |
325 int X11_GL_MakeCurrent(_THIS) | |
326 { | |
327 int retval; | |
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328 |
0 | 329 retval = 0; |
330 if ( ! this->gl_data->glXMakeCurrent(GFX_Display, | |
331 SDL_Window, glx_context) ) { | |
332 SDL_SetError("Unable to make GL context current"); | |
333 retval = -1; | |
334 } | |
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335 XSync( GFX_Display, False ); |
0 | 336 |
337 /* More Voodoo X server workarounds... Grr... */ | |
338 SDL_Lock_EventThread(); | |
339 X11_CheckDGAMouse(this); | |
340 SDL_Unlock_EventThread(); | |
341 | |
342 return(retval); | |
343 } | |
344 | |
345 /* Get attribute data from glX. */ | |
346 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value) | |
347 { | |
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348 int retval = -1; |
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349 int unsupported = 0; |
0 | 350 int glx_attrib = None; |
351 | |
352 switch( attrib ) { | |
353 case SDL_GL_RED_SIZE: | |
354 glx_attrib = GLX_RED_SIZE; | |
355 break; | |
356 case SDL_GL_GREEN_SIZE: | |
357 glx_attrib = GLX_GREEN_SIZE; | |
358 break; | |
359 case SDL_GL_BLUE_SIZE: | |
360 glx_attrib = GLX_BLUE_SIZE; | |
361 break; | |
362 case SDL_GL_ALPHA_SIZE: | |
363 glx_attrib = GLX_ALPHA_SIZE; | |
364 break; | |
365 case SDL_GL_DOUBLEBUFFER: | |
366 glx_attrib = GLX_DOUBLEBUFFER; | |
367 break; | |
368 case SDL_GL_BUFFER_SIZE: | |
369 glx_attrib = GLX_BUFFER_SIZE; | |
370 break; | |
371 case SDL_GL_DEPTH_SIZE: | |
372 glx_attrib = GLX_DEPTH_SIZE; | |
373 break; | |
374 case SDL_GL_STENCIL_SIZE: | |
375 glx_attrib = GLX_STENCIL_SIZE; | |
376 break; | |
377 case SDL_GL_ACCUM_RED_SIZE: | |
378 glx_attrib = GLX_ACCUM_RED_SIZE; | |
379 break; | |
380 case SDL_GL_ACCUM_GREEN_SIZE: | |
381 glx_attrib = GLX_ACCUM_GREEN_SIZE; | |
382 break; | |
383 case SDL_GL_ACCUM_BLUE_SIZE: | |
384 glx_attrib = GLX_ACCUM_BLUE_SIZE; | |
385 break; | |
386 case SDL_GL_ACCUM_ALPHA_SIZE: | |
387 glx_attrib = GLX_ACCUM_ALPHA_SIZE; | |
388 break; | |
450
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389 case SDL_GL_STEREO: |
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390 glx_attrib = GLX_STEREO; |
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391 break; |
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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392 case SDL_GL_MULTISAMPLEBUFFERS: |
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393 glx_attrib = GLX_SAMPLE_BUFFERS_ARB; |
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394 break; |
656
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395 case SDL_GL_MULTISAMPLESAMPLES: |
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396 glx_attrib = GLX_SAMPLES_ARB; |
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397 break; |
1737 | 398 case SDL_GL_ACCELERATED_VISUAL: |
399 if ( glXExtensionSupported(this, "GLX_EXT_visual_rating") ) { | |
400 glx_attrib = GLX_VISUAL_CAVEAT_EXT; | |
401 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); | |
402 if ( *value == GLX_SLOW_VISUAL_EXT ) { | |
403 *value = SDL_FALSE; | |
404 } else { | |
405 *value = SDL_TRUE; | |
406 } | |
407 return retval; | |
408 } else { | |
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409 unsupported = 1; |
1737 | 410 } |
411 break; | |
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412 case SDL_GL_SWAP_CONTROL: |
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413 if ( this->gl_data->glXGetSwapIntervalMESA ) { |
1880 | 414 *value = this->gl_data->glXGetSwapIntervalMESA(); |
415 return(0); | |
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416 } else { |
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417 unsupported = 1; |
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418 } |
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419 break; |
0 | 420 default: |
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421 unsupported = 1; |
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422 break; |
0 | 423 } |
424 | |
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425 if (unsupported) { |
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426 SDL_SetError("OpenGL attribute is unsupported on this system"); |
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427 } else { |
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428 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); |
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429 } |
0 | 430 return retval; |
431 } | |
432 | |
433 void X11_GL_SwapBuffers(_THIS) | |
434 { | |
435 this->gl_data->glXSwapBuffers(GFX_Display, SDL_Window); | |
436 } | |
437 | |
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438 #endif /* SDL_VIDEO_OPENGL_GLX */ |
0 | 439 |
1861 | 440 #define OPENGL_REQUIRS_DLOPEN |
441 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN) | |
442 #include <dlfcn.h> | |
443 #define GL_LoadObject(X) dlopen(X, (RTLD_NOW|RTLD_GLOBAL)) | |
444 #define GL_LoadFunction dlsym | |
445 #define GL_UnloadObject dlclose | |
446 #else | |
447 #define GL_LoadObject SDL_LoadObject | |
448 #define GL_LoadFunction SDL_LoadFunction | |
449 #define GL_UnloadObject SDL_UnloadObject | |
450 #endif | |
451 | |
0 | 452 void X11_GL_UnloadLibrary(_THIS) |
453 { | |
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454 #if SDL_VIDEO_OPENGL_GLX |
0 | 455 if ( this->gl_config.driver_loaded ) { |
1191
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Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
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456 |
1861 | 457 GL_UnloadObject(this->gl_config.dll_handle); |
0 | 458 |
459 this->gl_data->glXGetProcAddress = NULL; | |
460 this->gl_data->glXChooseVisual = NULL; | |
461 this->gl_data->glXCreateContext = NULL; | |
462 this->gl_data->glXDestroyContext = NULL; | |
463 this->gl_data->glXMakeCurrent = NULL; | |
464 this->gl_data->glXSwapBuffers = NULL; | |
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465 this->gl_data->glXSwapIntervalSGI = NULL; |
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466 this->gl_data->glXSwapIntervalMESA = NULL; |
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467 this->gl_data->glXGetSwapIntervalMESA = NULL; |
0 | 468 |
469 this->gl_config.dll_handle = NULL; | |
470 this->gl_config.driver_loaded = 0; | |
471 } | |
472 #endif | |
473 } | |
474 | |
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475 #if SDL_VIDEO_OPENGL_GLX |
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476 |
0 | 477 /* Passing a NULL path means load pointers from the application */ |
478 int X11_GL_LoadLibrary(_THIS, const char* path) | |
479 { | |
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
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480 void* handle = NULL; |
0 | 481 |
1182
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X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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482 if ( gl_active ) { |
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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483 SDL_SetError("OpenGL context already created"); |
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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484 return -1; |
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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485 } |
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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486 |
e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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487 if ( path == NULL ) { |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
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diff
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488 path = SDL_getenv("SDL_VIDEO_GL_DRIVER"); |
0 | 489 if ( path == NULL ) { |
490 path = DEFAULT_OPENGL; | |
491 } | |
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
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492 } |
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Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
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493 |
1861 | 494 handle = GL_LoadObject(path); |
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495 if ( handle == NULL ) { |
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Add error message if not using SDL_LoadObject
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changeset
|
496 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN) |
0e0883cb7137
Add error message if not using SDL_LoadObject
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497 SDL_SetError("Failed loading %s", path); |
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Add error message if not using SDL_LoadObject
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498 #else |
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499 /* SDL_LoadObject() will call SDL_SetError() for us. */ |
3905
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Add error message if not using SDL_LoadObject
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500 #endif |
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501 return -1; |
0 | 502 } |
503 | |
504 /* Unload the old driver and reset the pointers */ | |
505 X11_GL_UnloadLibrary(this); | |
506 | |
507 /* Load new function pointers */ | |
180
578815880307
Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
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127
diff
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508 this->gl_data->glXGetProcAddress = |
1861 | 509 (void *(*)(const GLubyte *)) GL_LoadFunction(handle, "glXGetProcAddressARB"); |
180
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510 this->gl_data->glXChooseVisual = |
1861 | 511 (XVisualInfo *(*)(Display *, int, int *)) GL_LoadFunction(handle, "glXChooseVisual"); |
180
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512 this->gl_data->glXCreateContext = |
1861 | 513 (GLXContext (*)(Display *, XVisualInfo *, GLXContext, int)) GL_LoadFunction(handle, "glXCreateContext"); |
180
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514 this->gl_data->glXDestroyContext = |
1861 | 515 (void (*)(Display *, GLXContext)) GL_LoadFunction(handle, "glXDestroyContext"); |
180
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516 this->gl_data->glXMakeCurrent = |
1861 | 517 (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle, "glXMakeCurrent"); |
180
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518 this->gl_data->glXSwapBuffers = |
1861 | 519 (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle, "glXSwapBuffers"); |
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520 this->gl_data->glXGetConfig = |
1861 | 521 (int (*)(Display *, XVisualInfo *, int, int *)) GL_LoadFunction(handle, "glXGetConfig"); |
638
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522 this->gl_data->glXQueryExtensionsString = |
1861 | 523 (const char *(*)(Display *, int)) GL_LoadFunction(handle, "glXQueryExtensionsString"); |
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Implemented bug #2, 117:
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524 this->gl_data->glXSwapIntervalSGI = |
1861 | 525 (int (*)(int)) GL_LoadFunction(handle, "glXSwapIntervalSGI"); |
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526 this->gl_data->glXSwapIntervalMESA = |
1861 | 527 (GLint (*)(unsigned)) GL_LoadFunction(handle, "glXSwapIntervalMESA"); |
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528 this->gl_data->glXGetSwapIntervalMESA = |
1861 | 529 (GLint (*)(void)) GL_LoadFunction(handle, "glXGetSwapIntervalMESA"); |
1315
e94b0d7c33bc
Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
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1312
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530 |
0 | 531 if ( (this->gl_data->glXChooseVisual == NULL) || |
532 (this->gl_data->glXCreateContext == NULL) || | |
533 (this->gl_data->glXDestroyContext == NULL) || | |
534 (this->gl_data->glXMakeCurrent == NULL) || | |
535 (this->gl_data->glXSwapBuffers == NULL) || | |
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536 (this->gl_data->glXGetConfig == NULL) || |
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537 (this->gl_data->glXQueryExtensionsString == NULL)) { |
0 | 538 SDL_SetError("Could not retrieve OpenGL functions"); |
539 return -1; | |
540 } | |
541 | |
542 this->gl_config.dll_handle = handle; | |
543 this->gl_config.driver_loaded = 1; | |
544 if ( path ) { | |
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545 SDL_strlcpy(this->gl_config.driver_path, path, |
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546 SDL_arraysize(this->gl_config.driver_path)); |
0 | 547 } else { |
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548 *this->gl_config.driver_path = '\0'; |
0 | 549 } |
550 return 0; | |
551 } | |
552 | |
553 void *X11_GL_GetProcAddress(_THIS, const char* proc) | |
554 { | |
555 void* handle; | |
556 | |
557 handle = this->gl_config.dll_handle; | |
558 if ( this->gl_data->glXGetProcAddress ) { | |
1196
b81f54c3963f
Fixed compile warnings with gcc 4
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559 return this->gl_data->glXGetProcAddress((const GLubyte *)proc); |
0 | 560 } |
1861 | 561 return GL_LoadFunction(handle, proc); |
0 | 562 } |
563 | |
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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1358
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564 #endif /* SDL_VIDEO_OPENGL_GLX */ |