diff options
| author | Marek Olšák <[email protected]> | 2016-11-26 15:52:05 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2016-11-29 23:52:31 +0100 |
| commit | 5e5573b1bf8565f38e9b770b5357d069e80ff00d (patch) | |
| tree | a736509c105f5d1893ffad8264b1e3a4baecb046 /src/gallium/drivers | |
| parent | ff50c44a5fb4411715da828af5b8706c8a456d26 (diff) | |
radeonsi: disable RB+ blend optimizations for dual source blending
This fixes dual source blending on Stoney. The fix was copied from Vulkan.
The problem was discovered during internal testing.
Cc: 13.0 <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 911e979a4fb..1ccf5b6b214 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -557,6 +557,17 @@ static void *si_create_blend_state_mode(struct pipe_context *ctx, } if (sctx->b.family == CHIP_STONEY) { + /* Disable RB+ blend optimizations for dual source blending. + * Vulkan does this. + */ + if (blend->dual_src_blend) { + for (int i = 0; i < 8; i++) { + sx_mrt_blend_opt[i] = + S_028760_COLOR_COMB_FCN(V_028760_OPT_COMB_NONE) | + S_028760_ALPHA_COMB_FCN(V_028760_OPT_COMB_NONE); + } + } + for (int i = 0; i < 8; i++) si_pm4_set_reg(pm4, R_028760_SX_MRT0_BLEND_OPT + i * 4, sx_mrt_blend_opt[i]); |