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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_list[64];
int att_pos = 0; int att_pos = 0;
XVisualInfo *vis; XVisualInfo *vis;
int i;
if (TRACE_ON(opengl)) { if (TRACE_ON(opengl)) {
TRACE("(%p,%p)\n", physDev, ppfd); TRACE("(%p,%p)\n", physDev, ppfd);
@ -101,14 +102,6 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
dump_PIXELFORMATDESCRIPTOR((PIXELFORMATDESCRIPTOR *) ppfd); 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) { if (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) {
ERR("Flag not supported !\n"); ERR("Flag not supported !\n");
/* Should SetError here... */ /* Should SetError here... */
@ -125,16 +118,16 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
/* These flags are not supported yet... /* These flags are not supported yet...
NULL_TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, 8); NULL_TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, 8);
ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); */
ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits); ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits); /* now suported */
ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */ /* ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
att_list[att_pos] = None; att_list[att_pos] = None;
ENTER_GL(); { ENTER_GL(); {
/* /*
This command cannot be used as we need to use the default visual... This command cannot be used as we need to use the default visual...
Let's hope it at least contains some OpenGL functionnalities Let's hope it at least contains some OpenGL functionnalities
vis = glXChooseVisual(gdi_display, DefaultScreen(gdi_display), att_list); vis = glXChooseVisual(gdi_display, DefaultScreen(gdi_display), att_list);
*/ */
int num; int num;
@ -152,6 +145,19 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
/* Should SetError here... */ /* Should SetError here... */
return 0; 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; physDev->visuals[physDev->used_visuals++] = vis;
return physDev->used_visuals; return physDev->used_visuals;
@ -256,9 +262,14 @@ int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
/* Depth bits */ /* Depth bits */
glXGetConfig(gdi_display, vis, GLX_DEPTH_SIZE, &value); glXGetConfig(gdi_display, vis, GLX_DEPTH_SIZE, &value);
ppfd->cDepthBits = value; ppfd->cDepthBits = value;
/* stencil bits */
glXGetConfig( gdi_display, vis, GLX_STENCIL_SIZE, &value );
ppfd->cStencilBits = value;
LEAVE_GL(); LEAVE_GL();
/* Aux, stencil : to do ... */ /* Aux : to do ... */
ppfd->iLayerType = PFD_MAIN_PLANE; ppfd->iLayerType = PFD_MAIN_PLANE;