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st/xorg: Handle fake fronts correctly for pixmaps

This commit is contained in:
Jakob Bornecrantz 2009-08-21 23:20:46 +01:00
parent a469b4c459
commit 29165a2fcc
1 changed files with 46 additions and 0 deletions
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46
src/gallium/state_trackers/xorg/xorg_dri2.c
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@ -97,6 +97,11 @@ driCreateBuffers(DrawablePtr pDraw, unsigned int *attachments, int count)
template.tex_usage = PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
tex = ms->screen->texture_create(ms->screen, &template);
depth = tex;
} else if (attachments[i] == DRI2BufferFakeFrontLeft &&
pDraw->type == DRAWABLE_PIXMAP) {
pPixmap = (PixmapPtr) pDraw;
pPixmap->refcnt++;
tex = xorg_exa_get_texture(pPixmap);
} else {
pPixmap = (*pScreen->CreatePixmap)(pScreen, pDraw->width,
pDraw->height,
@ -171,12 +176,53 @@ driCopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
GCPtr gc;
RegionPtr copy_clip;
/*
* In driCreateBuffers we dewrap windows into the
* backing pixmaps in order to get to the texture.
* We need to use the real drawable in CopyArea
* so that cliprects and offsets are correct.
*/
src_pixmap = src_priv->pPixmap;
dst_pixmap = dst_priv->pPixmap;
if (pSrcBuffer->attachment == DRI2BufferFrontLeft)
src_pixmap = (PixmapPtr)pDraw;
if (pDestBuffer->attachment == DRI2BufferFrontLeft)
dst_pixmap = (PixmapPtr)pDraw;
/*
* The clients implements glXWaitX with a copy front to fake and then
* waiting on the server to signal its completion of it. While
* glXWaitGL is a client side flush and a copy from fake to front.
* This is how it is done in the DRI2 protocol, how ever depending
* which type of drawables the server does things a bit differently
* then what the protocol says as the fake and front are the same.
*
* for pixmaps glXWaitX is a server flush.
* for pixmaps glXWaitGL is a client flush.
* for windows glXWaitX is a copy from front to fake then a server flush.
* for windows glXWaitGL is a client flush then a copy from fake to front.
*
* XXX in the windows case this code always flushes but that isn't a
* must in the glXWaitGL case but we don't know if this is a glXWaitGL
* or a glFlush/glFinish call.
*/
if (dst_pixmap == src_pixmap) {
/* pixmap glXWaitX */
if (pSrcBuffer->attachment == DRI2BufferFrontLeft &&
pDestBuffer->attachment == DRI2BufferFakeFrontLeft) {
ms->ctx->flush(ms->ctx, PIPE_FLUSH_SWAPBUFFERS, NULL);
return;
}
/* pixmap glXWaitGL */
if (pDestBuffer->attachment == DRI2BufferFrontLeft &&
pSrcBuffer->attachment == DRI2BufferFakeFrontLeft) {
return;
} else {
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"copying between the same pixmap\n");
}
}
gc = GetScratchGC(pDraw->depth, pScreen);
copy_clip = REGION_CREATE(pScreen, NULL, 0);
REGION_COPY(pScreen, copy_clip, pRegion);