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-rw-r--r--src/gallium/drivers/radeonsi/si_state.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index f5b2330..8f7203e 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -464,6 +464,16 @@ static void *si_create_blend_state_mode(struct pipe_context *ctx,
if (i >= 1 && blend->dual_src_blend)
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)) {
+ assert(!"Unsupported equation for dual source blending");
+ continue;
+ }
+
if (!state->rt[j].colormask)
continue;