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recompiler: fix for gather4 components return

This commit is contained in:
psucien 2024-07-07 13:00:52 +02:00
parent 1d608427ed
commit bf4bf4ccb2
1 changed files with 4 additions and 3 deletions
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7
src/shader_recompiler/frontend/translate/vector_memory.cpp
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@ -165,13 +165,14 @@ void Translator::IMAGE_GATHER(const GcnInst& inst) {
if (!flags.test(MimgModifier::Pcf)) {
return ir.ImageGather(handle, body, offset, {}, info);
}
ASSERT(mimg.dmask & 1); // should be always 1st (R) component
return ir.ImageGatherDref(handle, body, offset, {}, dref, info);
}();
// For gather4 instructions dmask selects which component to read and must have
// only one bit set to 1
ASSERT_MSG(std::popcount(mimg.dmask) == 1, "Unexpected bits in gather dmask");
for (u32 i = 0; i < 4; i++) {
if (((mimg.dmask >> i) & 1) == 0) {
continue;
}
const IR::F32 value = IR::F32{ir.CompositeExtract(texel, i)};
ir.SetVectorReg(dest_reg++, value);
}