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sna/gen2: Recompute blend pipeline for component-alpha pass 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-07-01 21:24:43 +01:00
parent 121511d3bd
commit 5c8a108d2c
1 changed files with 4 additions and 3 deletions
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7
src/sna/gen2_render.c
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@ -325,6 +325,7 @@ gen2_emit_texture(struct sna *sna,
static void
gen2_get_blend_factors(const struct sna_composite_op *op,
int blend,
uint32_t *c_out,
uint32_t *a_out)
{
@ -348,7 +349,7 @@ gen2_get_blend_factors(const struct sna_composite_op *op,
/* Get the source picture's channels into TBx_ARG1 */
if ((op->has_component_alpha && gen2_blend_op[op->op].src_alpha) ||
if ((op->has_component_alpha && gen2_blend_op[blend].src_alpha) ||
op->dst.format == PICT_a8) {
/* Producing source alpha value, so the first set of channels
* is src.A instead of src.X. We also do this if the destination
@ -626,7 +627,7 @@ static void gen2_emit_composite_state(struct sna *sna,
gen2_disable_logic_op(sna);
gen2_get_blend_factors(op, &cblend, &ablend);
gen2_get_blend_factors(op, op->op, &cblend, &ablend);
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
LOAD_TEXTURE_BLEND_STAGE(0) | 1);
OUT_BATCH(cblend);
@ -839,7 +840,7 @@ static void gen2_magic_ca_pass(struct sna *sna,
gen2_get_blend_cntl(PictOpAdd, TRUE, op->dst.format) |
S8_ENABLE_COLOR_BUFFER_WRITE);
gen2_get_blend_factors(op, &cblend, &ablend);
gen2_get_blend_factors(op, PictOpAdd, &cblend, &ablend);
OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
LOAD_TEXTURE_BLEND_STAGE(0) | 1);
OUT_BATCH(cblend);