wgl: Rewrite ChoosePixelFormat.
This commit is contained in:
Roderick Colenbrander
Alexandre Julliard
parent
ae98679ebe
commit
dee2fc09f5
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@ -1009,105 +1009,180 @@ static int ConvertPixelFormatGLXtoWGL(Display *display, int fmt_id)
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*/
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int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
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const PIXELFORMATDESCRIPTOR *ppfd) {
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WineGLPixelFormat *fmt;
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int ret = 0;
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int value = 0;
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if (!has_opengl()) {
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ERR("No libGL on this box - disabling OpenGL support !\n");
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return 0;
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}
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if (TRACE_ON(opengl)) {
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TRACE("(%p,%p)\n", physDev, ppfd);
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dump_PIXELFORMATDESCRIPTOR((const PIXELFORMATDESCRIPTOR *) ppfd);
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}
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wine_tsx11_lock();
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if(!visual) {
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ERR("Can't get an opengl visual!\n");
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goto choose_exit;
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}
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fmt = ConvertPixelFormatWGLtoGLX(gdi_display, 1 /* main visual */, FALSE /* offscreen */, &value);
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/* In case an fbconfig was found, check if it matches to the requirements of the ppfd */
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if(!fmt) {
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ERR("Can't find a matching FBCONFIG_ID for VISUAL_ID 0x%lx!\n", visual->visualid);
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} else {
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int dwFlags = 0;
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int iPixelType = 0;
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WineGLPixelFormat *fmt = NULL;
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int ret = 0;
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int nPixelFormats;
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int value = 0;
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int i = 0;
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int bestFormat = -1;
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int bestColor = -1;
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int bestAlpha = -1;
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int bestDepth = -1;
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int bestStencil = -1;
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int bestAux = -1;
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int score;
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/* Pixel type */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_RENDER_TYPE, &value);
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if (value & GLX_RGBA_BIT)
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iPixelType = PFD_TYPE_RGBA;
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else
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iPixelType = PFD_TYPE_COLORINDEX;
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if (ppfd->iPixelType != iPixelType) {
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TRACE("pixel type mismatch\n");
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goto choose_exit;
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if (!has_opengl()) {
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ERR("No libGL on this box - disabling OpenGL support !\n");
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return 0;
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}
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/* Doublebuffer */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DOUBLEBUFFER, &value); if (value) dwFlags |= PFD_DOUBLEBUFFER;
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if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) && (ppfd->dwFlags & PFD_DOUBLEBUFFER)) {
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if (!(dwFlags & PFD_DOUBLEBUFFER)) {
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TRACE("dbl buffer mismatch\n");
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goto choose_exit;
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}
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if (TRACE_ON(opengl)) {
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TRACE("(%p,%p)\n", physDev, ppfd);
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dump_PIXELFORMATDESCRIPTOR((const PIXELFORMATDESCRIPTOR *) ppfd);
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}
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/* Stereo */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_STEREO, &value); if (value) dwFlags |= PFD_STEREO;
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if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE) && (ppfd->dwFlags & PFD_STEREO)) {
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if (!(dwFlags & PFD_STEREO)) {
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TRACE("stereo mismatch\n");
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goto choose_exit;
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}
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wine_tsx11_lock();
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ConvertPixelFormatWGLtoGLX(gdi_display, 0, FALSE /* offscreen */, &nPixelFormats);
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for(i=0; i<nPixelFormats; i++)
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{
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int dwFlags = 0;
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int iPixelType = 0;
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int alpha=0, color=0, depth=0, stencil=0, aux=0;
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fmt = ConvertPixelFormatWGLtoGLX(gdi_display, i+1 /* 1-based index */, FALSE /* offscreen */, &value);
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score = 0;
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/* Pixel type */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_RENDER_TYPE, &value);
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if (value & GLX_RGBA_BIT)
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iPixelType = PFD_TYPE_RGBA;
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else
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iPixelType = PFD_TYPE_COLORINDEX;
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if (ppfd->iPixelType != iPixelType)
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{
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TRACE("pixel type mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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/* Doublebuffer:
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* Ignore doublebuffer when PFD_DOUBLEBUFFER_DONTCARE is set. Further if the flag
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* is not set, we must return a format without double buffering. */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DOUBLEBUFFER, &value);
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if (value) dwFlags |= PFD_DOUBLEBUFFER;
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if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) && ((ppfd->dwFlags^dwFlags) & PFD_DOUBLEBUFFER))
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{
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TRACE("dbl buffer mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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/* Stereo:
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* Ignore stereo when PFD_STEREO_DONTCARE is set. Further if the flag
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* is not set, we must return a format without stereo support. */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_STEREO, &value);
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if (value) dwFlags |= PFD_STEREO;
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if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE) && ((ppfd->dwFlags^dwFlags) & PFD_STEREO))
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{
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TRACE("stereo mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_BUFFER_SIZE, &color); /* cColorBits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ALPHA_SIZE, &alpha); /* cAlphaBits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DEPTH_SIZE, &depth); /* cDepthBits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_STENCIL_SIZE, &stencil); /* cStencilBits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_AUX_BUFFERS, &aux); /* cAuxBuffers */
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/* Below we will do a number of checks to select the 'best' pixelformat.
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* We assume the precedence cColorBits > cAlphaBits > cDepthBits > cStencilBits -> cAuxBuffers.
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* The code works by trying to match the most important options as close as possible.
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* When a reasonable format is found, we will try to match more options. */
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/* Color bits */
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if( ((ppfd->cColorBits > bestColor) && (color > bestColor)) ||
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((color >= ppfd->cColorBits) && (color < bestColor)) )
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{
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bestAlpha = alpha;
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bestColor = color;
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bestDepth = depth;
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bestStencil = stencil;
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bestAux = aux;
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bestFormat = i;
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continue;
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} else if(bestColor != color) { /* Do further checks if the format is compatible */
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TRACE("color mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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/* Alpha bits */
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if( ((ppfd->cAlphaBits > bestAlpha) && (alpha > bestAlpha)) ||
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((alpha >= ppfd->cAlphaBits) && (alpha < bestAlpha)) )
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{
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bestAlpha = alpha;
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bestColor = color;
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bestDepth = depth;
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bestStencil = stencil;
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bestAux = aux;
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bestFormat = i;
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continue;
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} else if(bestAlpha != alpha) {
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TRACE("alpha mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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/* Depth bits */
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if( ((ppfd->cDepthBits > bestDepth) && (depth > bestDepth)) ||
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((depth >= ppfd->cDepthBits) && (depth < bestDepth)) )
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{
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bestAlpha = alpha;
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bestColor = color;
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bestDepth = depth;
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bestStencil = stencil;
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bestAux = aux;
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bestFormat = i;
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continue;
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} else if(bestDepth != depth) {
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TRACE("depth mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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/* Stencil bits */
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if( ((ppfd->cStencilBits > bestStencil) && (stencil > bestStencil)) ||
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((stencil >= ppfd->cStencilBits) && (stencil < bestStencil)) )
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{
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bestAlpha = alpha;
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bestColor = color;
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bestDepth = depth;
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bestStencil = stencil;
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bestAux = aux;
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bestFormat = i;
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continue;
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} else if(bestStencil != stencil) {
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TRACE("stencil mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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/* Aux buffers */
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if( ((ppfd->cAuxBuffers > bestAux) && (aux > bestAux)) ||
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((aux >= ppfd->cAuxBuffers) && (aux < bestAux)) )
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{
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bestAlpha = alpha;
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bestColor = color;
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bestDepth = depth;
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bestStencil = stencil;
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bestAux = aux;
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bestFormat = i;
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continue;
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} else if(bestAux != aux) {
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TRACE("aux mismatch for iPixelFormat=%d\n", i+1);
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continue;
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}
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}
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/* Alpha bits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ALPHA_SIZE, &value);
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if (ppfd->iPixelType==PFD_TYPE_RGBA && ppfd->cAlphaBits && !value) {
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TRACE("alpha mismatch\n");
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goto choose_exit;
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if(bestFormat == -1) {
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TRACE("No matching mode was found returning 0\n");
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ret = 0;
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}
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else {
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ret = bestFormat+1; /* the return value should be a 1-based index */
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TRACE("Successfully found a matching mode, returning index: %d %x\n", ret, WineGLPixelFormatList[bestFormat-1].fmt_id);
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}
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/* Depth bits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DEPTH_SIZE, &value);
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if (ppfd->cDepthBits && !value) {
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TRACE("depth mismatch\n");
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goto choose_exit;
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}
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wine_tsx11_unlock();
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/* Stencil bits */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_STENCIL_SIZE, &value);
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if (ppfd->cStencilBits && !value) {
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TRACE("stencil mismatch\n");
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goto choose_exit;
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}
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/* Aux buffers */
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pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_AUX_BUFFERS, &value);
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if (ppfd->cAuxBuffers && !value) {
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TRACE("aux mismatch\n");
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goto choose_exit;
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}
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/* When we pass all the checks we have found a matching format :) */
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ret = 1;
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TRACE("Successfully found a matching mode, returning index: %d\n", ret);
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}
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choose_exit:
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if(!ret)
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TRACE("No matching mode was found returning 0\n");
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wine_tsx11_unlock();
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return ret;
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return ret;
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}
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/**
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