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comparison src/video/x11/SDL_x11gl.c @ 4092:2b32a416d202 SDL-1.2

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Set an error message when SDL_GL_SetAttribute() fails because we can't support the attribute on X11.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 06 Aug 2007 18:36:46 +0000
parents 5ec68276e4de
children a1b03ba2fcd0
comparison
equal deleted inserted replaced
4091:98b219f9ff17 4092:2b32a416d202
336 } 336 }
337 337
338 /* Get attribute data from glX. */ 338 /* Get attribute data from glX. */
339 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value) 339 int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
340 { 340 {
341 int retval; 341 int retval = -1;
342 int unsupported = 0;
342 int glx_attrib = None; 343 int glx_attrib = None;
343 344
344 switch( attrib ) { 345 switch( attrib ) {
345 case SDL_GL_RED_SIZE: 346 case SDL_GL_RED_SIZE:
346 glx_attrib = GLX_RED_SIZE; 347 glx_attrib = GLX_RED_SIZE;
396 } else { 397 } else {
397 *value = SDL_TRUE; 398 *value = SDL_TRUE;
398 } 399 }
399 return retval; 400 return retval;
400 } else { 401 } else {
401 return(-1); 402 unsupported = 1;
402 } 403 }
403 break; 404 break;
404 case SDL_GL_SWAP_CONTROL: 405 case SDL_GL_SWAP_CONTROL:
405 if ( this->gl_data->glXGetSwapIntervalMESA ) { 406 if ( this->gl_data->glXGetSwapIntervalMESA ) {
406 *value = this->gl_data->glXGetSwapIntervalMESA(); 407 *value = this->gl_data->glXGetSwapIntervalMESA();
407 return(0); 408 return(0);
408 } else { 409 } else {
409 return(-1); 410 unsupported = 1;
410 } 411 }
411 break; 412 break;
412 default: 413 default:
413 return(-1); 414 unsupported = 1;
414 } 415 break;
415 416 }
416 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value); 417
417 418 if (unsupported) {
419 SDL_SetError("OpenGL attribute is unsupported on this system");
420 } else {
421 retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
422 }
418 return retval; 423 return retval;
419 } 424 }
420 425
421 void X11_GL_SwapBuffers(_THIS) 426 void X11_GL_SwapBuffers(_THIS)
422 { 427 {