Module: Mesa
Branch: master
Commit: 36057ff12a148f401490f82fce8c6670cadb039e
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=36057ff12a148f401490f82fce8c6670cadb039e
Author: Marek Olšák <marek.ol...@amd.com>
Date: Tue Aug 9 13:26:23 2016 +0200
radeonsi: disallow MIN/MAX blend equations for dual source blending
Reviewed-by: Michel Dänzer <michel.daen...@amd.com>
Reviewed-by: Edward O'Callaghan <funfunc...@folklore1984.net>
---
src/gallium/drivers/radeonsi/si_state.c | 10 ++++++++++
1 file changed, 10 insertions(+)
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;
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