diff options
| author | Chia-I Wu <olv@lunarg.com> | 2011-01-30 22:54:40 +0800 |
|---|---|---|
| committer | Chia-I Wu <olv@lunarg.com> | 2011-01-30 23:22:40 +0800 |
| commit | 3f0a966807f03a364edea0272ddf45f08ab7ce4f (patch) | |
| tree | b6d5fee2968cc39727752aa37e7734da0c26bee0 /src/gallium/state_trackers/vega/paint.c | |
| parent | e919dee1edd469c174c5c07c95efd4932a674b67 (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.c | 7 |
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 2db8cbcf7c..6e5348a1ff 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)); +} |