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authorMarek Olšák <marek.olsak@amd.com>2016-08-09 13:26:23 +0200
committerMarek Olšák <marek.olsak@amd.com>2016-08-10 15:43:36 +0200
commit36057ff12a148f401490f82fce8c6670cadb039e (patch)
tree028f8cbb1ab39c95d2c3b9a5ffed95ca2c2badc4 /src/gallium/drivers/radeonsi
parent947e0614d091c260651e4f3d6209bd6bcc2cfa0d (diff)
radeonsi: disallow MIN/MAX blend equations for dual source blending
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Diffstat (limited to 'src/gallium/drivers/radeonsi')
-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 f5b2330d623..8f7203ea9ba 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;