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-rw-r--r--src/gallium/drivers/llvmpipe/lp_quad_blend.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_blend.c b/src/gallium/drivers/llvmpipe/lp_quad_blend.c
index 0ebe0e6c51f..fe6d30d7c86 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad_blend.c
+++ b/src/gallium/drivers/llvmpipe/lp_quad_blend.c
@@ -924,6 +924,13 @@ single_output_color(struct quad_stage *qs,
}
}
+static void
+blend_noop(struct quad_stage *qs,
+ struct quad_header *quads[],
+ unsigned nr)
+{
+}
+
static void
choose_blend_quad(struct quad_stage *qs,
@@ -934,9 +941,12 @@ choose_blend_quad(struct quad_stage *qs,
const struct pipe_blend_state *blend = llvmpipe->blend;
qs->run = blend_fallback;
-
- if (!llvmpipe->blend->logicop_enable &&
- llvmpipe->blend->colormask == 0xf)
+
+ if (llvmpipe->framebuffer.nr_cbufs == 0) {
+ qs->run = blend_noop;
+ }
+ else if (!llvmpipe->blend->logicop_enable &&
+ llvmpipe->blend->colormask == 0xf)
{
if (!blend->blend_enable) {
qs->run = single_output_color;