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authorChia-I Wu <[email protected]>2011-01-30 22:54:40 +0800
committerChia-I Wu <[email protected]>2011-01-30 23:22:40 +0800
commit3f0a966807f03a364edea0272ddf45f08ab7ce4f (patch)
treeb6d5fee2968cc39727752aa37e7734da0c26bee0 /src/gallium/state_trackers/vega/paint.c
parente919dee1edd469c174c5c07c95efd4932a674b67 (diff)
st/vega: Disable blending when the paint is opaque.
When the paint is opaque (currently, solid color with alpha 1.0f), no blending is needed for VG_BLEND_SRC_OVER. This eliminates the serious performance hit introduced by 859106f196ade77f59f8787b071739901cd1a843 for a common scenario.
Diffstat (limited to 'src/gallium/state_trackers/vega/paint.c')
-rw-r--r--src/gallium/state_trackers/vega/paint.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/paint.c b/src/gallium/state_trackers/vega/paint.c
index 2db8cbcf7c8..6e5348a1ff2 100644
--- a/src/gallium/state_trackers/vega/paint.c
+++ b/src/gallium/state_trackers/vega/paint.c
@@ -748,3 +748,10 @@ void paint_fill_constant_buffer(struct vg_paint *paint,
abort();
}
}
+
+VGboolean paint_is_opaque(struct vg_paint *paint)
+{
+ /* TODO add other paint types and make sure PAINT_DIRTY gets set */
+ return (paint->type == VG_PAINT_TYPE_COLOR &&
+ floatsEqual(paint->solid.color[3], 1.0f));
+}