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freedreno/a4xx: alpha-test

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Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2014-12-20 12:01:02 -05:00
parent 097d760aac
commit 10d81a03b3
1 changed files with 2 additions and 0 deletions
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2
src/gallium/drivers/freedreno/a4xx/fd4_zsa.c
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@ -92,10 +92,12 @@ fd4_zsa_state_create(struct pipe_context *pctx,
}
if (cso->alpha.enabled) {
uint32_t ref = cso->alpha.ref_value * 255.0;
so->gras_alpha_control =
A4XX_GRAS_ALPHA_CONTROL_ALPHA_TEST_ENABLE;
so->rb_alpha_control =
A4XX_RB_ALPHA_CONTROL_ALPHA_TEST |
A4XX_RB_ALPHA_CONTROL_ALPHA_REF(ref) |
A4XX_RB_ALPHA_CONTROL_ALPHA_TEST_FUNC(cso->alpha.func);
so->rb_depth_control |=
A4XX_RB_DEPTH_CONTROL_EARLY_Z_DISABLE;