[Mesa-dev] [PATCH] gallivm: fix crash in lp_sampler_static_state()
Brian Paul
brianp at vmware.com
Fri Aug 10 08:25:46 PDT 2012
Fixes WebGL conformance/uniforms/uniform-default-values.html crash.
We need to check for the null view pointer before accessing view->texture.
Fixes http://bugs.freedesktop.org/show_bug.cgi?id=53317
Note: This is a candidate for the 8.0 branch.
---
src/gallium/auxiliary/gallivm/lp_bld_sample.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
index 1ea59ea..63cf610 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
@@ -96,15 +96,14 @@ lp_sampler_static_state(struct lp_sampler_static_state *state,
const struct pipe_sampler_view *view,
const struct pipe_sampler_state *sampler)
{
- const struct pipe_resource *texture = view->texture;
+ const struct pipe_resource *texture;
memset(state, 0, sizeof *state);
- if(!texture)
+ if (!sampler || !view || !view->texture)
return;
- if(!sampler)
- return;
+ texture = view->texture;
/*
* We don't copy sampler state over unless it is actually enabled, to avoid
--
1.7.3.4
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