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sna: Apply the clear color when resizing the front buffer 

If the existing front buffer is clear, just apply the clear color to
then new buffer rather than copy the old one across.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-07-08 18:53:25 +01:00
parent 8dd14855d7
commit bb8770158c
1 changed files with 18 additions and 7 deletions
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25
src/sna/sna_display.c
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@ -2159,17 +2159,28 @@ static void copy_front(struct sna *sna, PixmapPtr old, PixmapPtr new)
DBG(("%s: copying box (%dx%d) from (%d, %d) to (%d, %d)\n",
__FUNCTION__, box.x2, box.y2, sx, sy, dx, dy));
if (box.x2 != new->drawable.width || box.y2 != new->drawable.height) {
(void)sna->render.fill_one(sna, new, new_priv->gpu_bo, 0,
if (old_priv->clear) {
(void)sna->render.fill_one(sna, new, new_priv->gpu_bo,
old_priv->clear_color,
0, 0,
new->drawable.width,
new->drawable.height,
GXclear);
GXcopy);
new_priv->clear = true;
new_priv->clear_color = old_priv->clear_color;
} else {
if (box.x2 != new->drawable.width || box.y2 != new->drawable.height) {
(void)sna->render.fill_one(sna, new, new_priv->gpu_bo, 0,
0, 0,
new->drawable.width,
new->drawable.height,
GXclear);
}
(void)sna->render.copy_boxes(sna, GXcopy,
old, old_priv->gpu_bo, sx, sy,
new, new_priv->gpu_bo, dx, dy,
&box, 1, 0);
}
(void)sna->render.copy_boxes(sna, GXcopy,
old, old_priv->gpu_bo, sx, sy,
new, new_priv->gpu_bo, dx, dy,
&box, 1, 0);
if (!DAMAGE_IS_ALL(new_priv->gpu_damage))
sna_damage_all(&new_priv->gpu_damage,