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glx: Only call DRI2 invalidate when necessary

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We only need this when the server may have swapped the buffers or
when we receive an invalidate event from the server.  The default
behaviour is still that the DRI driver will invalidate its own buffers
when glViewport is called.

https://bugs.freedesktop.org/show_bug.cgi?id=27277
This commit is contained in:
Kristian Høgsberg
2010-05-10 15:51:31 -04:00
parent 7c5152c199
commit 2d00d16da7
1 changed files with 4 additions and 12 deletions
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16
src/glx/dri2_glx.c
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@@ -359,14 +359,6 @@ dri2WaitGL(__GLXDRIdrawable * pdraw)
static void
dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate)
{
__GLXDRIdrawablePrivate *pdraw = loaderPrivate;
__GLXdisplayPrivate *priv = __glXInitialize(pdraw->base.psc->dpy);
__GLXDRIdisplayPrivate *pdp = (__GLXDRIdisplayPrivate *)priv->dri2Display;
/* Old servers don't send invalidate events */
if (!pdp->invalidateAvailable)
dri2InvalidateBuffers(priv->dpy, pdraw->base.drawable);
dri2WaitGL(loaderPrivate);
}
@@ -427,16 +419,16 @@ dri2SwapBuffers(__GLXDRIdrawable *pdraw, int64_t target_msc, int64_t divisor,
(*pdraw->psc->f->flush)(pdraw->driDrawable);
#endif
/* Old servers don't send invalidate events */
if (!pdp->invalidateAvailable)
dri2InvalidateBuffers(dpyPriv->dpy, pdraw->drawable);
/* Old servers can't handle swapbuffers */
if (!pdp->swapAvailable) {
dri2CopySubBuffer(pdraw, 0, 0, priv->width, priv->height);
return 0;
}
/* Old servers don't send invalidate events */
if (!pdp->invalidateAvailable)
dri2InvalidateBuffers(dpyPriv->dpy, pdraw->drawable);
#ifdef X_DRI2SwapBuffers
DRI2SwapBuffers(pdraw->psc->dpy, pdraw->xDrawable, target_msc, divisor,
remainder, &ret);