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comparison src/video/quartz/SDL_QuartzGL.m @ 1181:49d3efec6651

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Quartz driver OpenGL updates: Driver can now open whatever library is specified in SDL_GL_LoadLibrary() call (previously, it ignored this parameter), and uses the default system library when NULL is specified. Also, library is loaded once in SDL_GL_LoadLibrary() and not every call to SDL_GL_GetProcAddress().
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 22 Nov 2005 08:21:39 +0000
parents e967ab22e6fd
children c96b326b90ba
comparison
equal deleted inserted replaced
1180:bdcb8bb4c831 1181:49d3efec6651
166 166
167 167
168 /* SDL OpenGL functions */ 168 /* SDL OpenGL functions */
169 169
170 int QZ_GL_LoadLibrary (_THIS, const char *location) { 170 int QZ_GL_LoadLibrary (_THIS, const char *location) {
171 this->gl_config.driver_loaded = 1; 171 CFURLRef bundleURL;
172 return 0; 172 CFStringRef cfstr;
173
174 if ( gl_context != NULL ) {
175 SDL_SetError("OpenGL context already created");
176 return -1;
177 }
178
179 if (opengl_bundle != NULL)
180 CFRelease(opengl_bundle);
181
182 opengl_bundle = NULL;
183 this->gl_config.driver_loaded = 0;
184
185 if (location == NULL)
186 location = "/System/Library/Frameworks/OpenGL.framework";
187
188 cfstr = CFStringCreateWithCString(kCFAllocatorDefault, location,
189 kCFStringEncodingUTF8);
190 if (cfstr == NULL) {
191 SDL_OutOfMemory();
192 return -1;
193 }
194
195 bundleURL = CFURLCreateWithFileSystemPath (kCFAllocatorDefault,
196 cfstr, kCFURLPOSIXPathStyle, true);
197
198 CFRelease(cfstr);
199
200 if (bundleURL == NULL) {
201 SDL_OutOfMemory();
202 return -1;
203 }
204
205 opengl_bundle = CFBundleCreate (kCFAllocatorDefault, bundleURL);
206
207 CFRelease(bundleURL);
208
209 if (opengl_bundle != NULL) {
210 this->gl_config.driver_loaded = 1;
211 return 0;
212 }
213
214 /* not exactly descriptive, but okay... */
215 SDL_SetError("Could not load OpenGL library");
216 return -1;
173 } 217 }
174 218
175 void* QZ_GL_GetProcAddress (_THIS, const char *proc) { 219 void* QZ_GL_GetProcAddress (_THIS, const char *proc) {
176 220 CFStringRef funcName = CFStringCreateWithCString
177 /* We may want to cache the bundleRef at some point */
178 CFBundleRef bundle;
179 CFURLRef bundleURL = CFURLCreateWithFileSystemPath (kCFAllocatorDefault,
180 CFSTR("/System/Library/Frameworks/OpenGL.framework"), kCFURLPOSIXPathStyle, true);
181
182 CFStringRef functionName = CFStringCreateWithCString
183 (kCFAllocatorDefault, proc, kCFStringEncodingASCII); 221 (kCFAllocatorDefault, proc, kCFStringEncodingASCII);
184 222
185 void *function; 223 void *func = CFBundleGetFunctionPointerForName(opengl_bundle, funcName);
186 224 CFRelease (funcName);
187 bundle = CFBundleCreate (kCFAllocatorDefault, bundleURL); 225 return func;
188 assert (bundle != NULL);
189
190 function = CFBundleGetFunctionPointerForName (bundle, functionName);
191
192 CFRelease ( bundleURL );
193 CFRelease ( functionName );
194 CFRelease ( bundle );
195
196 return function;
197 } 226 }
198 227
199 int QZ_GL_GetAttribute (_THIS, SDL_GLattr attrib, int* value) { 228 int QZ_GL_GetAttribute (_THIS, SDL_GLattr attrib, int* value) {
200 229
201 GLenum attr = 0; 230 GLenum attr = 0;