From: Marek Olšák <[email protected]>
---
src/gallium/drivers/radeonsi/si_state.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_state.c
b/src/gallium/drivers/radeonsi/si_state.c
index 47b1148..911e979 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -447,20 +447,24 @@ static void *si_create_blend_state_mode(struct
pipe_context *ctx,
unsigned srcRGB_opt, dstRGB_opt, srcA_opt, dstA_opt;
unsigned blend_cntl = 0;
sx_mrt_blend_opt[i] =
S_028760_COLOR_COMB_FCN(V_028760_OPT_COMB_BLEND_DISABLED) |
S_028760_ALPHA_COMB_FCN(V_028760_OPT_COMB_BLEND_DISABLED);
/* Only set dual source blending for MRT0 to avoid a hang. */
if (i >= 1 && blend->dual_src_blend) {
+ /* Vulkan does this for dual source blending. */
+ if (i == 1)
+ blend_cntl |= S_028780_ENABLE(1);
+
si_pm4_set_reg(pm4, R_028780_CB_BLEND0_CONTROL + i * 4,
blend_cntl);
continue;
}
/* Only addition and subtraction equations are supported with
* dual source blending.
*/
if (blend->dual_src_blend &&
(eqRGB == PIPE_BLEND_MIN || eqRGB == PIPE_BLEND_MAX ||
eqA == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MAX)) {
--
2.7.4
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