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Handle DONTCARE flags on ChoosePixelFormat. 

DOUBLEBUFFER and STEREO are non-mandatory options (ie if not available
find a compatible pixel format without). So try without if we cannot
find a valid fbconfig with these options.
This commit is contained in:
Raphael Junqueira 2005-12-02 11:24:52 +01:00 committed by Alexandre Julliard
parent 0fad7e1f27
commit bc5c0b16b4
1 changed files with 38 additions and 9 deletions
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47
dlls/x11drv/opengl.c
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@ -183,6 +183,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
const PIXELFORMATDESCRIPTOR *ppfd) {
int att_list[64];
int att_pos = 0;
int att_pos_fac = 0;
GLXFBConfig* cfgs = NULL;
int ret = 0;
@ -204,22 +205,24 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
}
/* Now, build the request to GLX */
TEST_AND_ADD2(ppfd->dwFlags & PFD_DOUBLEBUFFER, GLX_DOUBLEBUFFER, TRUE);
TEST_AND_ADD1(ppfd->dwFlags & PFD_STEREO, GLX_STEREO);
if (ppfd->iPixelType == PFD_TYPE_COLORINDEX) {
ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
}
if (ppfd->iPixelType == PFD_TYPE_RGBA) {
ADD2(GLX_RENDER_TYPE, GLX_RGBA_BIT);
if (32 == ppfd->cDepthBits) {
/**
* for 32 bpp depth buffers force to use 24.
* needed as some drivers don't support 32bpp
*/
TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 24);
if (ppfd->dwFlags & PFD_DEPTH_DONTCARE) {
ADD2(GLX_DEPTH_SIZE, GLX_DONT_CARE);
} else {
TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, ppfd->cDepthBits);
if (32 == ppfd->cDepthBits) {
/**
* for 32 bpp depth buffers force to use 24.
* needed as some drivers don't support 32bpp
*/
TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 24);
} else {
TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, ppfd->cDepthBits);
}
}
if (32 == ppfd->cColorBits) {
ADD2(GLX_RED_SIZE, 8);
@ -237,6 +240,21 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
/* These flags are not supported yet...
ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits);
*/
/** facultative flags now */
att_pos_fac = att_pos;
if (ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) {
ADD2(GLX_DOUBLEBUFFER, GLX_DONT_CARE);
} else {
ADD2(GLX_DOUBLEBUFFER, (ppfd->dwFlags & PFD_DOUBLEBUFFER) ? TRUE : FALSE);
}
if (ppfd->dwFlags & PFD_STEREO_DONTCARE) {
ADD2(GLX_STEREO, GLX_DONT_CARE);
} else {
ADD2(GLX_STEREO, (ppfd->dwFlags & PFD_STEREO) ? TRUE : FALSE);
}
/** Attributes List End */
att_list[att_pos] = None;
wine_tsx11_lock();
@ -251,6 +269,17 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
UINT it_fmt;
cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), att_list, &nCfgs);
/**
* if we have facultative flags and we failed, try without
* as MSDN said
*
* see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/opengl/ntopnglr_2qb8.asp
*/
if ((NULL == cfgs || 0 == nCfgs) && att_pos > att_pos_fac) {
att_list[att_pos_fac] = None;
cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), att_list, &nCfgs);
}
if (NULL == cfgs || 0 == nCfgs) {
ERR("glXChooseFBConfig returns NULL (glError: %d)\n", pglGetError());
ret = 0;