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Reuse visuals to avoid MAX_PIXELFORMATS limit. 

Activated the code to support the stencil buffer.
This commit is contained in:
Christoph Frick 2002-04-11 23:48:42 +00:00 committed by Alexandre Julliard
parent 6aadb22bfb
commit 069dd51eb7
1 changed files with 24 additions and 13 deletions
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37
graphics/x11drv/opengl.c
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@ -94,6 +94,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
int att_list[64];
int att_pos = 0;
XVisualInfo *vis;
int i;
if (TRACE_ON(opengl)) {
TRACE("(%p,%p)\n", physDev, ppfd);
@ -101,14 +102,6 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
dump_PIXELFORMATDESCRIPTOR((PIXELFORMATDESCRIPTOR *) ppfd);
}
/* For the moment, we are dumb : we always allocate a new XVisualInfo structure,
we do not try to find an already found that could match */
if (physDev->used_visuals == MAX_PIXELFORMATS) {
ERR("Maximum number of visuals reached !\n");
/* Should SetError here... */
return 0;
}
if (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) {
ERR("Flag not supported !\n");
/* Should SetError here... */
@ -125,16 +118,16 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
/* These flags are not supported yet...
NULL_TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, 8);
ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits);
ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits);
ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); */
ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits); /* now suported */
/* ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
att_list[att_pos] = None;
ENTER_GL(); {
/*
This command cannot be used as we need to use the default visual...
Let's hope it at least contains some OpenGL functionnalities
vis = glXChooseVisual(gdi_display, DefaultScreen(gdi_display), att_list);
*/
int num;
@ -152,6 +145,19 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
/* Should SetError here... */
return 0;
}
/* try to find the visualid in the already created visuals */
for( i=0; i<physDev->used_visuals; i++ ) {
if ( vis->visualid == physDev->visuals[i]->visualid ) {
XFree(vis);
return i+1;
}
}
/* now give up, if the maximum is reached */
if (physDev->used_visuals == MAX_PIXELFORMATS) {
ERR("Maximum number of visuals reached !\n");
/* Should SetError here... */
return 0;
}
physDev->visuals[physDev->used_visuals++] = vis;
return physDev->used_visuals;
@ -256,9 +262,14 @@ int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
/* Depth bits */
glXGetConfig(gdi_display, vis, GLX_DEPTH_SIZE, &value);
ppfd->cDepthBits = value;
/* stencil bits */
glXGetConfig( gdi_display, vis, GLX_STENCIL_SIZE, &value );
ppfd->cStencilBits = value;
LEAVE_GL();
/* Aux, stencil : to do ... */
/* Aux : to do ... */
ppfd->iLayerType = PFD_MAIN_PLANE;