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wgl: Cleanup pixelformat initialization code.

This commit is contained in:
Roderick Colenbrander 2007-08-20 15:48:11 +02:00 committed by Alexandre Julliard
parent d5c0888bba
commit 22eea683ff
1 changed files with 40 additions and 91 deletions
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73
dlls/winex11.drv/opengl.c
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@ -833,85 +833,35 @@ static int get_render_type_from_fbconfig(Display *display, GLXFBConfig fbconfig)
return render_type;
}
static BOOL get_fbconfig_from_visualid(Display *display, Visual *visual, GLXFBConfig *fbconfig, int *fmt_id)
{
GLXFBConfig* cfgs = NULL;
int i;
int nCfgs;
int tmp_fmt_id;
int tmp_vis_id;
VisualID visualid;
if(!display || !visual) {
ERR("Invalid display or visual\n");
return FALSE;
}
visualid = XVisualIDFromVisual(visual);
/* Get a list of all available framebuffer configurations */
cfgs = pglXGetFBConfigs(display, DefaultScreen(display), &nCfgs);
if (NULL == cfgs || 0 == nCfgs) {
ERR("glXChooseFBConfig returns NULL\n");
if(cfgs != NULL) XFree(cfgs);
return FALSE;
}
/* Find the requested offscreen format and count the number of offscreen formats */
for(i=0; i<nCfgs; i++) {
pglXGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &tmp_vis_id);
pglXGetFBConfigAttrib(display, cfgs[i], GLX_FBCONFIG_ID, &tmp_fmt_id);
/* We are looking up the GLX index of our main visual and have found it :) */
if(visualid == tmp_vis_id) {
TRACE("Found FBCONFIG_ID 0x%x at index %d for VISUAL_ID 0x%x\n", tmp_fmt_id, i, tmp_vis_id);
*fbconfig = cfgs[i];
*fmt_id = tmp_fmt_id;
XFree(cfgs);
return TRUE;
}
}
ERR("No fbconfig found for Wine's main visual (0x%lx), expect problems!\n", visualid);
XFree(cfgs);
return FALSE;
}
static BOOL init_formats(Display *display, int screen, Visual *visual)
{
int fmt_id, tmp_vis_id, tmp_fmt_id, nCfgs, i;
GLXFBConfig* cfgs;
GLXFBConfig fbconfig;
GLXFBConfig fbconfig = NULL;
VisualID visualid = XVisualIDFromVisual(visual);
int nOffscreenFormats = 0;
/* Locate the fbconfig correspondig to our main visual */
if(!get_fbconfig_from_visualid(display, visual, &fbconfig, &fmt_id)) {
ERR("Can't get the FBCONFIG_ID for the main visual, expect problems!\n");
return FALSE;
}
/* As mentioned in various parts of the code only the format of the main visual can be used for onscreen rendering.
* Next to this format there are also so called offscreen rendering formats (used for pbuffers) which can be supported
* because they don't need a visual. Below we use glXGetFBConfigs instead of glXChooseFBConfig to enumerate the fb configurations
* because this call lists both types of formats instead of only onscreen ones. */
cfgs = pglXGetFBConfigs(display, DefaultScreen(display), &nCfgs);
if (NULL == cfgs || 0 == nCfgs) {
WARN("glXChooseFBConfig returns NULL\n");
ERR("glXChooseFBConfig returns NULL\n");
if(cfgs != NULL) XFree(cfgs);
/* We only have the single format of Wine's main visual */
WineGLPixelFormatList = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WineGLPixelFormat));
WineGLPixelFormatList[0].iPixelFormat = 1;
WineGLPixelFormatList[0].fbconfig = fbconfig;
WineGLPixelFormatList[0].fmt_id = fmt_id;
WineGLPixelFormatList[0].render_type = get_render_type_from_fbconfig(display, fbconfig);
WineGLPixelFormatList[0].offscreenOnly = FALSE;
WineGLPixelFormatListSize = 1;
return FALSE;
}
else {
/* Count the number of offscreen formats to determine the size for our pixelformat list */
for(i=0; i<nCfgs; i++) {
pglXGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &tmp_vis_id);
/* We have found Wine's main visual */
if(tmp_vis_id == visualid) {
pglXGetFBConfigAttrib(display, cfgs[i], GLX_FBCONFIG_ID, &fmt_id);
fbconfig = cfgs[i];
}
/* We have found an offscreen rendering format :) */
if(tmp_vis_id == 0) {
nOffscreenFormats++;
@ -944,7 +894,6 @@ static BOOL init_formats(Display *display, int screen, Visual *visual)
WineGLPixelFormatListSize++;
}
}
}
if(cfgs != NULL) XFree(cfgs);