KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2016-11-26 15:52:05 +01:00
parent ff50c44a5f
commit 5e5573b1bf
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/gallium/drivers/radeonsi/si_state.c
View File

@ -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]);