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Honor explicit gather LOD with shared image mip selection

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Co-authored-by: YuhiAida <21134775+YuhiAida@users.noreply.github.com>
Co-authored-by: BlackCAT <52720489+psnwd@users.noreply.github.com>
Co-authored-by: shadowbeat070 <70843316+shadowbeat070@users.noreply.github.com>
Co-authored-by: Senaxx <michelbeld@gmail.com>
Co-authored-by: Mac <me@itsmemac.com>
Co-authored-by: Ali Almohaya <AliAlmohaya@gmail.com>
This commit is contained in:
frans
2026-10-03 11:21:42 +04:00
committed by nmzik
parent 0bb2bdad17
commit bd611bfe15
15 changed files with 517 additions and 171 deletions
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src/graphics/shader/recompiler/frontend/translate/Memory.cpp
+10 -2
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@@ -708,8 +708,16 @@ void Translator::IMAGE_GATHER(const Decoder::Instruction& inst) {
const auto resource = GetImageResource(memory);
const auto sampler = GetSamplerResource(memory);
const auto address = MakeImageAddress(inst, MemorySourceAt(inst, 0));
const auto result = ir.Emit(IR::ValueOpcode::ImageGatherRaw, {resource, sampler, address},
AddMemoryInfo(memory, inst.pc));
const bool has_lod = (memory.image_sample_flags & Decoder::ImageSampleFlagLod) != 0u;
// LOD selection consumes these words on the GPU after descriptor handles are stripped.
const auto result = ir.Emit(
IR::ValueOpcode::ImageGatherRaw,
{resource, sampler, address,
has_lod ? resource.Instruction()->Arg(1) : IR::Value(0u),
has_lod ? resource.Instruction()->Arg(3) : IR::Value(0u),
has_lod ? sampler.Instruction()->Arg(1) : IR::Value(0u),
has_lod ? sampler.Instruction()->Arg(2) : IR::Value(0u)},
AddMemoryInfo(memory, inst.pc));
for (uint32_t index = 0; index < memory.data_dwords; index++) {
WriteOperand(OffsetOperand(inst.dst, index),
ir.Emit(IR::ValueOpcode::CompositeExtractU32x4, {result, IR::Value(index)}));