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Report damage before modifying the area, not after.

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If we copy the area before reporting the damage in this area, the server may
restore buffered data over the new data, leading to artefacts on the screen.
Reproducable with two cursors (second of which is SW rendered) and moving
windows around in compiz.

Fixes http://bugs.freedesktop.org/show_bug.cgi?id=16384 .
This commit is contained in:
Peter Hutterer 2008-08-21 11:22:40 +02:00 • committed by Michel Dänzer
parent 495c02262e
commit 3a94b25538
1 changed files with 2 additions and 2 deletions
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4
src/mesa/drivers/dri/common/dri_util.c
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@ -512,13 +512,13 @@ static void driCopySubBuffer(__DRIdrawable *dPriv,
{
drm_clip_rect_t rect;
dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);
rect.x1 = x;
rect.y1 = dPriv->h - y - h;
rect.x2 = x + w;
rect.y2 = rect.y1 + h;
driReportDamage(dPriv, &rect, 1);
dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);
}
const __DRIcopySubBufferExtension driCopySubBufferExtension = {