Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11gl.c @ 4343:d380e7a6265b SDL-1.2
patch-ac (from mrg@NetBSD.org):
Look for libGL.so, not any particular libGL.so.<X>, on NetBSD.
(the comment inline explains why)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 16 Oct 2009 05:06:17 +0000 |
| parents | f2f8525e60c2 |
| children | 5fe9b267cf55 |
| rev | line source |
|---|---|
| 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 #elif defined(__NetBSD__) |
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39 /* pkgsrc is .1, base system is .2 */ |
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40 #define DEFAULT_OPENGL "libGL.so" |
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41 #else |
| 0 | 42 #define DEFAULT_OPENGL "libGL.so.1" |
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43 #endif |
| 0 | 44 |
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45 #ifndef GLX_ARB_multisample |
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46 #define GLX_ARB_multisample |
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47 #define GLX_SAMPLE_BUFFERS_ARB 100000 |
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48 #define GLX_SAMPLES_ARB 100001 |
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49 #endif |
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50 |
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51 /* GLX_EXT_visual_rating stuff that might not be in the system headers... */ |
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52 #ifndef GLX_VISUAL_CAVEAT_EXT |
| 1737 | 53 #define GLX_VISUAL_CAVEAT_EXT 0x20 |
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54 #endif |
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55 #ifndef GLX_NONE_EXT |
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56 #define GLX_NONE_EXT 0x8000 |
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57 #endif |
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58 #ifndef GLX_SLOW_VISUAL_EXT |
| 1737 | 59 #define GLX_SLOW_VISUAL_EXT 0x8001 |
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60 #endif |
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61 #ifndef GLX_NON_CONFORMANT_VISUAL_EXT |
| 1737 | 62 #define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D |
| 63 #endif | |
| 64 | |
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65 |
| 1737 | 66 #if SDL_VIDEO_OPENGL_GLX |
| 67 static int glXExtensionSupported(_THIS, const char *extension) | |
| 68 { | |
| 69 const char *extensions; | |
| 70 const char *start; | |
| 71 const char *where, *terminator; | |
| 72 | |
| 73 /* Extension names should not have spaces. */ | |
| 74 where = SDL_strchr(extension, ' '); | |
| 75 if ( where || *extension == '\0' ) { | |
| 76 return 0; | |
| 77 } | |
| 78 | |
| 79 extensions = this->gl_data->glXQueryExtensionsString(GFX_Display,SDL_Screen); | |
| 80 /* It takes a bit of care to be fool-proof about parsing the | |
| 81 * OpenGL extensions string. Don't be fooled by sub-strings, etc. | |
| 82 */ | |
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83 |
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84 /* http://bugs.debian.org/537487 */ |
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85 if (extensions == NULL) { |
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86 return 0; |
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87 } |
| 1737 | 88 |
| 89 start = extensions; | |
| 90 | |
| 91 for (;;) { | |
| 92 where = SDL_strstr(start, extension); | |
| 93 if (!where) break; | |
| 94 | |
| 95 terminator = where + strlen(extension); | |
| 96 if (where == start || *(where - 1) == ' ') | |
| 97 if (*terminator == ' ' || *terminator == '\0') return 1; | |
| 98 | |
| 99 start = terminator; | |
| 100 } | |
| 101 return 0; | |
| 102 } | |
| 103 #endif /* SDL_VIDEO_OPENGL_GLX */ | |
| 104 | |
| 0 | 105 XVisualInfo *X11_GL_GetVisual(_THIS) |
| 106 { | |
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107 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 108 /* 64 seems nice. */ |
| 109 int attribs[64]; | |
| 110 int i; | |
| 111 | |
| 112 /* load the gl driver from a default path */ | |
| 113 if ( ! this->gl_config.driver_loaded ) { | |
| 114 /* no driver has been loaded, use default (ourselves) */ | |
| 115 if ( X11_GL_LoadLibrary(this, NULL) < 0 ) { | |
| 116 return NULL; | |
| 117 } | |
| 118 } | |
| 119 | |
| 120 /* See if we already have a window which we must use */ | |
| 121 if ( SDL_windowid ) { | |
| 122 XWindowAttributes a; | |
| 123 XVisualInfo vi_in; | |
| 124 int out_count; | |
| 125 | |
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126 XGetWindowAttributes(SDL_Display, SDL_Window, &a); |
| 0 | 127 vi_in.screen = SDL_Screen; |
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128 vi_in.visualid = XVisualIDFromVisual(a.visual); |
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129 glx_visualinfo = XGetVisualInfo(SDL_Display, |
| 0 | 130 VisualScreenMask|VisualIDMask, &vi_in, &out_count); |
| 131 return glx_visualinfo; | |
| 132 } | |
| 133 | |
| 134 /* Setup our GLX attributes according to the gl_config. */ | |
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135 i = 0; |
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136 attribs[i++] = GLX_RGBA; |
| 0 | 137 attribs[i++] = GLX_RED_SIZE; |
| 138 attribs[i++] = this->gl_config.red_size; | |
| 139 attribs[i++] = GLX_GREEN_SIZE; | |
| 140 attribs[i++] = this->gl_config.green_size; | |
| 141 attribs[i++] = GLX_BLUE_SIZE; | |
| 142 attribs[i++] = this->gl_config.blue_size; | |
| 143 | |
| 144 if( this->gl_config.alpha_size ) { | |
| 145 attribs[i++] = GLX_ALPHA_SIZE; | |
| 146 attribs[i++] = this->gl_config.alpha_size; | |
| 147 } | |
| 148 | |
| 149 if( this->gl_config.buffer_size ) { | |
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150 attribs[i++] = GLX_BUFFER_SIZE; |
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151 attribs[i++] = this->gl_config.buffer_size; |
| 0 | 152 } |
| 153 | |
| 154 if( this->gl_config.double_buffer ) { | |
| 155 attribs[i++] = GLX_DOUBLEBUFFER; | |
| 156 } | |
| 157 | |
| 158 attribs[i++] = GLX_DEPTH_SIZE; | |
| 159 attribs[i++] = this->gl_config.depth_size; | |
| 160 | |
| 161 if( this->gl_config.stencil_size ) { | |
| 162 attribs[i++] = GLX_STENCIL_SIZE; | |
| 163 attribs[i++] = this->gl_config.stencil_size; | |
| 164 } | |
| 165 | |
| 166 if( this->gl_config.accum_red_size ) { | |
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167 attribs[i++] = GLX_ACCUM_RED_SIZE; |
| 0 | 168 attribs[i++] = this->gl_config.accum_red_size; |
| 169 } | |
| 170 | |
| 171 if( this->gl_config.accum_green_size ) { | |
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172 attribs[i++] = GLX_ACCUM_GREEN_SIZE; |
| 0 | 173 attribs[i++] = this->gl_config.accum_green_size; |
| 174 } | |
| 175 | |
| 176 if( this->gl_config.accum_blue_size ) { | |
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177 attribs[i++] = GLX_ACCUM_BLUE_SIZE; |
| 0 | 178 attribs[i++] = this->gl_config.accum_blue_size; |
| 179 } | |
| 180 | |
| 181 if( this->gl_config.accum_alpha_size ) { | |
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182 attribs[i++] = GLX_ACCUM_ALPHA_SIZE; |
| 0 | 183 attribs[i++] = this->gl_config.accum_alpha_size; |
| 184 } | |
| 185 | |
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186 if( this->gl_config.stereo ) { |
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187 attribs[i++] = GLX_STEREO; |
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188 } |
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189 |
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190 if( this->gl_config.multisamplebuffers ) { |
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191 attribs[i++] = GLX_SAMPLE_BUFFERS_ARB; |
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192 attribs[i++] = this->gl_config.multisamplebuffers; |
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193 } |
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194 |
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195 if( this->gl_config.multisamplesamples ) { |
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196 attribs[i++] = GLX_SAMPLES_ARB; |
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197 attribs[i++] = this->gl_config.multisamplesamples; |
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198 } |
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199 |
| 1737 | 200 if( this->gl_config.accelerated >= 0 && |
| 201 glXExtensionSupported(this, "GLX_EXT_visual_rating") ) { | |
| 202 attribs[i++] = GLX_VISUAL_CAVEAT_EXT; | |
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203 attribs[i++] = GLX_NONE_EXT; |
| 1737 | 204 } |
| 205 | |
| 0 | 206 #ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */ |
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207 if ( !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { |
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208 attribs[i++] = GLX_X_VISUAL_TYPE; |
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209 attribs[i++] = GLX_DIRECT_COLOR; |
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210 } |
| 0 | 211 #endif |
| 212 attribs[i++] = None; | |
| 213 | |
| 214 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display, | |
| 215 SDL_Screen, attribs); | |
| 216 #ifdef GLX_DIRECT_COLOR | |
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217 if( !glx_visualinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { /* No DirectColor visual? Try again.. */ |
| 0 | 218 attribs[i-3] = None; |
| 219 glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display, | |
| 220 SDL_Screen, attribs); | |
| 221 } | |
| 222 #endif | |
| 223 if( !glx_visualinfo ) { | |
| 224 SDL_SetError( "Couldn't find matching GLX visual"); | |
| 225 return NULL; | |
| 226 } | |
|
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227 /* |
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228 printf("Found GLX visual 0x%x\n", glx_visualinfo->visualid); |
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229 */ |
| 0 | 230 return glx_visualinfo; |
| 231 #else | |
| 232 SDL_SetError("X11 driver not configured with OpenGL"); | |
| 233 return NULL; | |
| 234 #endif | |
| 235 } | |
| 236 | |
| 237 int X11_GL_CreateWindow(_THIS, int w, int h) | |
| 238 { | |
| 239 int retval; | |
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240 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 241 XSetWindowAttributes attributes; |
| 242 unsigned long mask; | |
| 243 unsigned long black; | |
| 244 | |
| 245 black = (glx_visualinfo->visual == DefaultVisual(SDL_Display, | |
| 246 SDL_Screen)) | |
| 247 ? BlackPixel(SDL_Display, SDL_Screen) : 0; | |
| 248 attributes.background_pixel = black; | |
| 249 attributes.border_pixel = black; | |
| 250 attributes.colormap = SDL_XColorMap; | |
| 251 mask = CWBackPixel | CWBorderPixel | CWColormap; | |
| 252 | |
|
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253 SDL_Window = XCreateWindow(SDL_Display, WMwindow, |
| 0 | 254 0, 0, w, h, 0, glx_visualinfo->depth, |
| 255 InputOutput, glx_visualinfo->visual, | |
| 256 mask, &attributes); | |
| 257 if ( !SDL_Window ) { | |
| 258 SDL_SetError("Could not create window"); | |
| 259 return -1; | |
| 260 } | |
| 261 retval = 0; | |
| 262 #else | |
| 263 SDL_SetError("X11 driver not configured with OpenGL"); | |
| 264 retval = -1; | |
| 265 #endif | |
| 266 return(retval); | |
| 267 } | |
| 268 | |
| 269 int X11_GL_CreateContext(_THIS) | |
| 270 { | |
| 271 int retval; | |
|
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272 #if SDL_VIDEO_OPENGL_GLX |
|
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273 |
| 0 | 274 /* We do this to create a clean separation between X and GLX errors. */ |
|
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275 XSync( SDL_Display, False ); |
| 0 | 276 glx_context = this->gl_data->glXCreateContext(GFX_Display, |
| 277 glx_visualinfo, NULL, True); | |
|
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278 XSync( GFX_Display, False ); |
| 0 | 279 |
|
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280 if ( glx_context == NULL ) { |
| 0 | 281 SDL_SetError("Could not create GL context"); |
|
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282 return(-1); |
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283 } |
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284 if ( X11_GL_MakeCurrent(this) < 0 ) { |
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285 return(-1); |
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286 } |
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287 gl_active = 1; |
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288 |
|
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289 if ( !glXExtensionSupported(this, "GLX_SGI_swap_control") ) { |
|
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290 this->gl_data->glXSwapIntervalSGI = NULL; |
| 0 | 291 } |
| 1737 | 292 if ( !glXExtensionSupported(this, "GLX_MESA_swap_control") ) { |
|
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293 this->gl_data->glXSwapIntervalMESA = NULL; |
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294 } |
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295 if ( this->gl_config.swap_control >= 0 ) { |
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296 int rc = -1; |
|
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297 if ( this->gl_data->glXSwapIntervalMESA ) { |
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298 rc = this->gl_data->glXSwapIntervalMESA(this->gl_config.swap_control); |
|
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299 } else if ( this->gl_data->glXSwapIntervalSGI ) { |
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300 rc = this->gl_data->glXSwapIntervalSGI(this->gl_config.swap_control); |
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301 } |
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302 if (rc == 0) { |
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303 this->gl_data->swap_interval = this->gl_config.swap_control; |
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304 } |
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305 } |
| 0 | 306 #else |
| 307 SDL_SetError("X11 driver not configured with OpenGL"); | |
| 308 #endif | |
| 309 if ( gl_active ) { | |
| 310 retval = 0; | |
| 311 } else { | |
| 312 retval = -1; | |
| 313 } | |
| 314 return(retval); | |
| 315 } | |
| 316 | |
| 317 void X11_GL_Shutdown(_THIS) | |
| 318 { | |
|
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319 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 320 /* Clean up OpenGL */ |
| 321 if( glx_context ) { | |
| 322 this->gl_data->glXMakeCurrent(GFX_Display, None, NULL); | |
| 323 | |
| 324 if (glx_context != NULL) | |
| 325 this->gl_data->glXDestroyContext(GFX_Display, glx_context); | |
| 326 | |
| 327 glx_context = NULL; | |
| 328 } | |
| 329 gl_active = 0; | |
|
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330 #endif /* SDL_VIDEO_OPENGL_GLX */ |
| 0 | 331 } |
| 332 | |
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333 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 334 |
| 335 /* Make the current context active */ | |
| 336 int X11_GL_MakeCurrent(_THIS) | |
| 337 { | |
| 338 int retval; | |
|
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339 |
| 0 | 340 retval = 0; |
| 341 if ( ! this->gl_data->glXMakeCurrent(GFX_Display, | |
| 342 SDL_Window, glx_context) ) { | |
| 343 SDL_SetError("Unable to make GL context current"); | |
| 344 retval = -1; | |
| 345 } | |
|
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346 XSync( GFX_Display, False ); |
| 0 | 347 |
| 348 /* More Voodoo X server workarounds... Grr... */ | |
| 349 SDL_Lock_EventThread(); | |
| 350 X11_CheckDGAMouse(this); | |
| 351 SDL_Unlock_EventThread(); | |
| 352 | |
| 353 return(retval); | |
| 354 } | |
| 355 | |
| 356 /* Get attribute data from glX. */ | |
| 357 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value) | |
| 358 { | |
|
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359 int retval = -1; |
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360 int unsupported = 0; |
| 0 | 361 int glx_attrib = None; |
| 362 | |
| 363 switch( attrib ) { | |
| 364 case SDL_GL_RED_SIZE: | |
| 365 glx_attrib = GLX_RED_SIZE; | |
| 366 break; | |
| 367 case SDL_GL_GREEN_SIZE: | |
| 368 glx_attrib = GLX_GREEN_SIZE; | |
| 369 break; | |
| 370 case SDL_GL_BLUE_SIZE: | |
| 371 glx_attrib = GLX_BLUE_SIZE; | |
| 372 break; | |
| 373 case SDL_GL_ALPHA_SIZE: | |
| 374 glx_attrib = GLX_ALPHA_SIZE; | |
| 375 break; | |
| 376 case SDL_GL_DOUBLEBUFFER: | |
| 377 glx_attrib = GLX_DOUBLEBUFFER; | |
| 378 break; | |
| 379 case SDL_GL_BUFFER_SIZE: | |
| 380 glx_attrib = GLX_BUFFER_SIZE; | |
| 381 break; | |
| 382 case SDL_GL_DEPTH_SIZE: | |
| 383 glx_attrib = GLX_DEPTH_SIZE; | |
| 384 break; | |
| 385 case SDL_GL_STENCIL_SIZE: | |
| 386 glx_attrib = GLX_STENCIL_SIZE; | |
| 387 break; | |
| 388 case SDL_GL_ACCUM_RED_SIZE: | |
| 389 glx_attrib = GLX_ACCUM_RED_SIZE; | |
| 390 break; | |
| 391 case SDL_GL_ACCUM_GREEN_SIZE: | |
| 392 glx_attrib = GLX_ACCUM_GREEN_SIZE; | |
| 393 break; | |
| 394 case SDL_GL_ACCUM_BLUE_SIZE: | |
| 395 glx_attrib = GLX_ACCUM_BLUE_SIZE; | |
| 396 break; | |
| 397 case SDL_GL_ACCUM_ALPHA_SIZE: | |
| 398 glx_attrib = GLX_ACCUM_ALPHA_SIZE; | |
| 399 break; | |
|
450
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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400 case SDL_GL_STEREO: |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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401 glx_attrib = GLX_STEREO; |
|
8a43e0cbf02f
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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402 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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diff
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|
403 case SDL_GL_MULTISAMPLEBUFFERS: |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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diff
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|
404 glx_attrib = GLX_SAMPLE_BUFFERS_ARB; |
|
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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|
405 break; |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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|
406 case SDL_GL_MULTISAMPLESAMPLES: |
|
655
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407 glx_attrib = GLX_SAMPLES_ARB; |
|
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
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408 break; |
| 1737 | 409 case SDL_GL_ACCELERATED_VISUAL: |
| 410 if ( glXExtensionSupported(this, "GLX_EXT_visual_rating") ) { | |
| 411 glx_attrib = GLX_VISUAL_CAVEAT_EXT; | |
| 412 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); | |
| 413 if ( *value == GLX_SLOW_VISUAL_EXT ) { | |
| 414 *value = SDL_FALSE; | |
| 415 } else { | |
| 416 *value = SDL_TRUE; | |
| 417 } | |
| 418 return retval; | |
| 419 } else { | |
|
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420 unsupported = 1; |
| 1737 | 421 } |
| 422 break; | |
|
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423 case SDL_GL_SWAP_CONTROL: |
|
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424 if ( ( this->gl_data->glXSwapIntervalMESA ) || |
|
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425 ( this->gl_data->glXSwapIntervalSGI ) ) { |
|
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426 *value = this->gl_data->swap_interval; |
|
4268
d48035d857d3
Make SDL_GL_GetAttribute(SDL_GL_SWAP_CONTROL) work with GLX_SGI_swap_control.
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|
427 return 0; |
|
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428 } else { |
|
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429 unsupported = 1; |
|
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430 } |
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|
431 break; |
| 0 | 432 default: |
|
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433 unsupported = 1; |
|
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434 break; |
| 0 | 435 } |
| 436 | |
|
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|
437 if (unsupported) { |
|
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|
438 SDL_SetError("OpenGL attribute is unsupported on this system"); |
|
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|
439 } else { |
|
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|
440 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); |
|
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|
441 } |
| 0 | 442 return retval; |
| 443 } | |
| 444 | |
| 445 void X11_GL_SwapBuffers(_THIS) | |
| 446 { | |
| 447 this->gl_data->glXSwapBuffers(GFX_Display, SDL_Window); | |
| 448 } | |
| 449 | |
|
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450 #endif /* SDL_VIDEO_OPENGL_GLX */ |
| 0 | 451 |
| 1861 | 452 #define OPENGL_REQUIRS_DLOPEN |
| 453 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN) | |
| 454 #include <dlfcn.h> | |
| 455 #define GL_LoadObject(X) dlopen(X, (RTLD_NOW|RTLD_GLOBAL)) | |
| 456 #define GL_LoadFunction dlsym | |
| 457 #define GL_UnloadObject dlclose | |
| 458 #else | |
| 459 #define GL_LoadObject SDL_LoadObject | |
| 460 #define GL_LoadFunction SDL_LoadFunction | |
| 461 #define GL_UnloadObject SDL_UnloadObject | |
| 462 #endif | |
| 463 | |
| 0 | 464 void X11_GL_UnloadLibrary(_THIS) |
| 465 { | |
|
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changeset
|
466 #if SDL_VIDEO_OPENGL_GLX |
| 0 | 467 if ( this->gl_config.driver_loaded ) { |
|
1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
468 |
| 1861 | 469 GL_UnloadObject(this->gl_config.dll_handle); |
| 0 | 470 |
| 471 this->gl_data->glXGetProcAddress = NULL; | |
| 472 this->gl_data->glXChooseVisual = NULL; | |
| 473 this->gl_data->glXCreateContext = NULL; | |
| 474 this->gl_data->glXDestroyContext = NULL; | |
| 475 this->gl_data->glXMakeCurrent = NULL; | |
| 476 this->gl_data->glXSwapBuffers = NULL; | |
|
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Implemented bug #2, 117:
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|
477 this->gl_data->glXSwapIntervalSGI = NULL; |
|
3b2a92126f4d
Implemented bug #2, 117:
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|
478 this->gl_data->glXSwapIntervalMESA = NULL; |
| 0 | 479 |
| 480 this->gl_config.dll_handle = NULL; | |
| 481 this->gl_config.driver_loaded = 0; | |
| 482 } | |
| 483 #endif | |
| 484 } | |
| 485 | |
|
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New configure-based build system. Still work in progress, but much improved
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486 #if SDL_VIDEO_OPENGL_GLX |
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e8e8dcb68e7a
X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
Ryan C. Gordon <icculus@icculus.org>
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487 |
| 0 | 488 /* Passing a NULL path means load pointers from the application */ |
| 489 int X11_GL_LoadLibrary(_THIS, const char* path) | |
| 490 { | |
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1191
2bd4cec0de63
Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
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1182
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491 void* handle = NULL; |
| 0 | 492 |
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493 if ( gl_active ) { |
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494 SDL_SetError("OpenGL context already created"); |
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495 return -1; |
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X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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496 } |
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497 |
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X11 driver now chooses "libGL.so.1" as a default when a NULL is passed to
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498 if ( path == NULL ) { |
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1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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499 path = SDL_getenv("SDL_VIDEO_GL_DRIVER"); |
| 0 | 500 if ( path == NULL ) { |
| 501 path = DEFAULT_OPENGL; | |
| 502 } | |
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1191
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Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
Ryan C. Gordon <icculus@icculus.org>
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1182
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503 } |
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Seperate glX from HAVE_OPENGL, for platforms that have both an X server and
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504 |
| 1861 | 505 handle = GL_LoadObject(path); |
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
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506 if ( handle == NULL ) { |
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3905
0e0883cb7137
Add error message if not using SDL_LoadObject
Patrice Mandin <patmandin@gmail.com>
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507 #if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN) |
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508 SDL_SetError("Failed loading %s", path); |
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509 #else |
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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510 /* SDL_LoadObject() will call SDL_SetError() for us. */ |
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511 #endif |
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New configure-based build system. Still work in progress, but much improved
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512 return -1; |
| 0 | 513 } |
| 514 | |
| 515 /* Unload the old driver and reset the pointers */ | |
| 516 X11_GL_UnloadLibrary(this); | |
| 517 | |
| 518 /* Load new function pointers */ | |
|
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Do proper typecasting so this compiles on IRIX
Sam Lantinga <slouken@libsdl.org>
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519 this->gl_data->glXGetProcAddress = |
| 1861 | 520 (void *(*)(const GLubyte *)) GL_LoadFunction(handle, "glXGetProcAddressARB"); |
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Sam Lantinga <slouken@libsdl.org>
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521 this->gl_data->glXChooseVisual = |
| 1861 | 522 (XVisualInfo *(*)(Display *, int, int *)) GL_LoadFunction(handle, "glXChooseVisual"); |
|
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523 this->gl_data->glXCreateContext = |
| 1861 | 524 (GLXContext (*)(Display *, XVisualInfo *, GLXContext, int)) GL_LoadFunction(handle, "glXCreateContext"); |
|
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525 this->gl_data->glXDestroyContext = |
| 1861 | 526 (void (*)(Display *, GLXContext)) GL_LoadFunction(handle, "glXDestroyContext"); |
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Sam Lantinga <slouken@libsdl.org>
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527 this->gl_data->glXMakeCurrent = |
| 1861 | 528 (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle, "glXMakeCurrent"); |
|
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529 this->gl_data->glXSwapBuffers = |
| 1861 | 530 (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle, "glXSwapBuffers"); |
|
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531 this->gl_data->glXGetConfig = |
| 1861 | 532 (int (*)(Display *, XVisualInfo *, int, int *)) GL_LoadFunction(handle, "glXGetConfig"); |
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Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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533 this->gl_data->glXQueryExtensionsString = |
| 1861 | 534 (const char *(*)(Display *, int)) GL_LoadFunction(handle, "glXQueryExtensionsString"); |
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Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
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535 this->gl_data->glXSwapIntervalSGI = |
| 1861 | 536 (int (*)(int)) GL_LoadFunction(handle, "glXSwapIntervalSGI"); |
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3b2a92126f4d
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Sam Lantinga <slouken@libsdl.org>
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537 this->gl_data->glXSwapIntervalMESA = |
| 1861 | 538 (GLint (*)(unsigned)) GL_LoadFunction(handle, "glXSwapIntervalMESA"); |
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e94b0d7c33bc
Merged useful fixes from 1.3 branch
Sam Lantinga <slouken@libsdl.org>
parents:
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539 |
| 0 | 540 if ( (this->gl_data->glXChooseVisual == NULL) || |
| 541 (this->gl_data->glXCreateContext == NULL) || | |
| 542 (this->gl_data->glXDestroyContext == NULL) || | |
| 543 (this->gl_data->glXMakeCurrent == NULL) || | |
| 544 (this->gl_data->glXSwapBuffers == NULL) || | |
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Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
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545 (this->gl_data->glXGetConfig == NULL) || |
|
b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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546 (this->gl_data->glXQueryExtensionsString == NULL)) { |
| 0 | 547 SDL_SetError("Could not retrieve OpenGL functions"); |
| 548 return -1; | |
| 549 } | |
| 550 | |
| 551 this->gl_config.dll_handle = handle; | |
| 552 this->gl_config.driver_loaded = 1; | |
| 553 if ( path ) { | |
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Use only safe string functions
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554 SDL_strlcpy(this->gl_config.driver_path, path, |
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Sam Lantinga <slouken@libsdl.org>
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555 SDL_arraysize(this->gl_config.driver_path)); |
| 0 | 556 } else { |
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557 *this->gl_config.driver_path = '\0'; |
| 0 | 558 } |
| 559 return 0; | |
| 560 } | |
| 561 | |
| 562 void *X11_GL_GetProcAddress(_THIS, const char* proc) | |
| 563 { | |
| 564 void* handle; | |
| 565 | |
| 566 handle = this->gl_config.dll_handle; | |
| 567 if ( this->gl_data->glXGetProcAddress ) { | |
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Fixed compile warnings with gcc 4
Sam Lantinga <slouken@libsdl.org>
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1191
diff
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568 return this->gl_data->glXGetProcAddress((const GLubyte *)proc); |
| 0 | 569 } |
| 1861 | 570 return GL_LoadFunction(handle, proc); |
| 0 | 571 } |
| 572 | |
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19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
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573 #endif /* SDL_VIDEO_OPENGL_GLX */ |