Take into account the render target format when checking if the color
mask affects all channels of the RT. This allows to enable full
override in a few cases where a non-alpha format is used.
Signed-off-by: Lucas Stach <l.st...@pengutronix.de>
---
src/gallium/drivers/etnaviv/etnaviv_blend.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/etnaviv/etnaviv_blend.c
b/src/gallium/drivers/etnaviv/etnaviv_blend.c
index 1792fd0fdd67..2bf081c2e710 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_blend.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_blend.c
@@ -114,6 +114,7 @@ etna_update_blend(struct etna_context *ctx)
struct pipe_blend_state *pblend = ctx->blend;
struct etna_blend_state *blend = etna_blend_state(pblend);
const struct pipe_rt_blend_state *rt0 = &pblend->rt[0];
+ const struct util_format_description *desc;
uint32_t colormask;
if (pfb->cbufs[0] &&
@@ -131,8 +132,10 @@ etna_update_blend(struct etna_context *ctx)
* - The color mask is 1111
* - No blending is used
*/
- bool full_overwrite = ((rt0->colormask == 0xf) && blend->fo_allowed) ||
- !pfb->cbufs[0];
+ if (pfb->cbufs[0])
+ desc = util_format_description(pfb->cbufs[0]->format);
+ bool full_overwrite = !pfb->cbufs[0] || ((blend->fo_allowed &&
+ util_format_colormask_full(desc, colormask)));
blend->PE_COLOR_FORMAT =
VIVS_PE_COLOR_FORMAT_COMPONENTS(colormask) |
COND(full_overwrite, VIVS_PE_COLOR_FORMAT_OVERWRITE);
--
2.19.1
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