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authorRoland Scheidegger <[email protected]>2015-03-28 02:57:13 +0100
committerRoland Scheidegger <[email protected]>2015-03-28 02:58:43 +0100
commit764fc2be5ab61c86baaab746e7ea7702328c4f9f (patch)
tree2105f63fdd4b97b920e5dcb8de0468830c0ecb51 /src/gallium
parent2cb149c2894679c5c7af81b40277f77cc0fb099d (diff)
gallivm: fix texture function name (key) when using txf/ld
When using the texel fetch functions rather than ordinary texturing, the arguments are all int vecs instead of float vecs, not to mention the actual function would look completely different. Hence this must be included in the texture function name (which serves as the key) otherwise things crash badly when a shader accesses the same texture and sampler unit with both txf/ld and ordinary texturing instructions with otherwise matching keys.
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index 9e74bd6f5d9..598d5fcdb3c 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -2900,7 +2900,8 @@ lp_build_sample_soa_code(struct gallivm_state *gallivm,
#define LP_SAMPLER_FUNC_EXPLICITDERIVS (1 << 2)
#define LP_SAMPLER_FUNC_SHADOW (1 << 3)
#define LP_SAMPLER_FUNC_OFFSETS (1 << 4)
-#define LP_SAMPLER_FUNC_LOD_PROPERTY_SHIFT 5
+#define LP_SAMPLER_FUNC_FETCH (1 << 5)
+#define LP_SAMPLER_FUNC_LOD_PROPERTY_SHIFT 6
static inline void
@@ -3091,6 +3092,9 @@ lp_build_sample_soa_func(struct gallivm_state *gallivm,
else if (derivs) {
sampler_bits |= LP_SAMPLER_FUNC_EXPLICITDERIVS;
}
+ if (is_fetch) {
+ sampler_bits |= LP_SAMPLER_FUNC_FETCH;
+ }
sampler_bits |= lod_property << LP_SAMPLER_FUNC_LOD_PROPERTY_SHIFT;
util_snprintf(func_name, sizeof(func_name), "texfunc_res_%d_sam_%d_%x",
@@ -3142,7 +3146,6 @@ lp_build_sample_soa_func(struct gallivm_state *gallivm,
}
}
- ret_type = LLVMVoidTypeInContext(gallivm->context);
val_type[0] = val_type[1] = val_type[2] = val_type[3] =
lp_build_vec_type(gallivm, type);
ret_type = LLVMStructTypeInContext(gallivm->context, val_type, 4, 0);