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sna/gen6: Reuse current no-blending setup for PictOpClear 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-01-06 12:10:27 +00:00
parent 800ca0b4d1
commit 2fefee6015
1 changed files with 11 additions and 0 deletions
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11
src/sna/gen6_render.c
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@ -585,6 +585,17 @@ gen6_emit_cc(struct sna *sna,
if (render->blend == blend)
return false;
if (op == PictOpClear) {
uint32_t src;
/* We can emulate a clear using src, which is beneficial if
* the blend unit is already disabled.
*/
src = BLEND_OFFSET(GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO);
if (render->blend == src)
return false;
}
OUT_BATCH(GEN6_3DSTATE_CC_STATE_POINTERS | (4 - 2));
OUT_BATCH((render->cc_blend + blend) | 1);
if (render->blend == (unsigned)-1) {