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llvmpipe: fix occlusion queries on big-endian.

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Casting to u8 arrays and picking the lowest byte is fairly LE specific
grab the other byte.

Cc: <mesa-stable@lists.freedesktop.org>

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5679>
This commit is contained in:
Dave Airlie 2020-06-29 15:57:14 +10:00
parent 3aeb61da49
commit b743c9bf2d
1 changed files with 4 additions and 0 deletions
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4
src/gallium/drivers/llvmpipe/lp_bld_depth.c
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@ -469,7 +469,11 @@ lp_build_occlusion_count(struct gallivm_state *gallivm,
countv = LLVMBuildBitCast(builder, countv, i8vntype, "");
for (i = 0; i < type.length; i++) {
#if UTIL_ARCH_LITTLE_ENDIAN
shuffles[i] = lp_build_const_int32(gallivm, 4*i);
#else
shuffles[i] = lp_build_const_int32(gallivm, (4*i) + 3);
#endif
}
shufflev = LLVMConstVector(shuffles, type.length);