From: Nicolai Hähnle <nicolai.haeh...@amd.com>
Line anti-aliasing will fail when there is no free sampler available. Make
the corresponding guard more robust in preparation of raising
PIPE_MAX_SAMPLERS to 32.
---
src/gallium/auxiliary/draw/draw_pipe_aaline.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/draw/draw_pipe_aaline.c
b/src/gallium/auxiliary/draw/draw_pipe_aaline.c
index cd9ee54..740aaa8 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_aaline.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_aaline.c
@@ -210,7 +210,7 @@ aa_transform_prolog(struct tgsi_transform_context *ctx)
/* find free sampler */
aactx->freeSampler = free_bit(aactx->samplersUsed);
- if (aactx->freeSampler >= PIPE_MAX_SAMPLERS)
+ if (aactx->freeSampler < 0 || aactx->freeSampler >= PIPE_MAX_SAMPLERS)
aactx->freeSampler = PIPE_MAX_SAMPLERS - 1;
/* find two free temp regs */
--
2.5.0
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