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glamor: Pull in UXA code for dumping some composites down to copy_n_to_n.

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Window dragging with metacity+gnome-terminal+xcompmgr is almost credible.
This commit is contained in:
Eric Anholt 2010-02-08 21:46:49 +01:00 committed by Zhigang Gong
parent 35847c578e
commit 4811e428a9
1 changed files with 55 additions and 2 deletions
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57
glamor/glamor_render.c
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@ -399,6 +399,32 @@ glamor_set_composite_solid(PicturePtr picture, GLint uniform_location)
glUniform4fvARB(uniform_location, 1, color);
}
static int
compatible_formats (CARD8 op, PicturePtr dst, PicturePtr src)
{
if (op == PictOpSrc) {
if (src->format == dst->format)
return 1;
if (src->format == PICT_a8r8g8b8 && dst->format == PICT_x8r8g8b8)
return 1;
if (src->format == PICT_a8b8g8r8 && dst->format == PICT_x8b8g8r8)
return 1;
} else if (op == PictOpOver) {
if (src->alphaMap || dst->alphaMap)
return 0;
if (src->format != dst->format)
return 0;
if (src->format == PICT_x8r8g8b8 || src->format == PICT_x8b8g8r8)
return 1;
}
return 0;
}
void
glamor_composite(CARD8 op,
PicturePtr source,
@ -424,8 +450,6 @@ glamor_composite(CARD8 op,
RegionRec region;
int i;
goto fail;
/* Do two-pass PictOpOver componentAlpha, until we enable
* dual source color blending.
*/
@ -445,6 +469,35 @@ glamor_composite(CARD8 op,
return;
}
if (!mask) {
if (compatible_formats (op, dest, source)) {
if (!source->repeat && !source->transform) {
x_dest += dest->pDrawable->x;
y_dest += dest->pDrawable->y;
x_source += source->pDrawable->x;
y_source += source->pDrawable->y;
if (!miComputeCompositeRegion
(&region,
source, NULL, dest,
x_source, y_source, 0, 0, x_dest, y_dest, width, height))
return;
glamor_copy_n_to_n(source->pDrawable,
dest->pDrawable, NULL,
REGION_RECTS(&region),
REGION_NUM_RECTS(&region),
x_source - x_dest, y_source - y_dest,
FALSE, FALSE, 0, NULL);
REGION_UNINIT(dest->pDrawable->pScreen,
&region);
return;
}
}
}
goto fail;
memset(&key, 0, sizeof(key));
key.has_mask = (mask != NULL);
if (!source->pDrawable) {