[Nouveau] [Bug 16231] Xv tearing after upgrade to Fedora 9

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=16231





--- Comment #3 from Pierre Ossman <drzeus-bugzilla at drzeus.cx>  2008-06-13 13:52:47 PST ---
One solution is also to make sure things are vsync:ed when they are transferred
on screen by the X server. I did a quick hack in NVExaCopy() that solved the
issue:

        if (NVExaPixmapIsOnscreen(pDstPixmap)) {
                uint8_t crtcs = nv_window_belongs_to_crtc(pScrn, dstX, dstY,
width, height);

                FIRE_RING();
                if (crtcs & 0x1)
                        NVWaitVSync(pScrn, 0);
                else if (crtcs & 0x2)
                        NVWaitVSync(pScrn, 1);
        }

It slows down a whole bunch of operations though, so it would need to be a bit
more clever.


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