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shader: share finite descriptor planning with GPU-selected inline samplers

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This commit is contained in:
nmzik
2026-10-09 16:51:10 +02:00
parent bb5edbd490
commit 8c81386568
9 changed files with 383 additions and 56 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterImage.cpp
+13 -2
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@@ -898,14 +898,25 @@ void EmitImage(ValueEmitContext& ctx, const IR::Inst& inst) {
operands[1] = AddressF32(ctx, mem, *address, layout.bias);
operand_count = 2;
}
const auto sampler_id = LoadSamplerDescriptor(state, mem.sampler);
const auto& samplers = state.program.info.samplers.at(mem.sampler).indirect_resources;
uint32_t sampler_index = 0;
if (!samplers.empty()) {
const auto* handle = inst.Arg(1).ResolveInstruction();
if (handle == nullptr || handle->GetOpcode() != IR::ValueOpcode::GetSamplerResource)
ctx.Fail(inst, "has invalid finite sampler key provenance");
sampler_index = EmitIndexSwitch(
state, ctx.Def(handle->Arg(0)), static_cast<uint32_t>(samplers.size()),
TypeU32(state), [&](uint32_t ordinal) { return ConstantU32(state, samplers[ordinal]); });
}
const auto sampler_id = LoadSamplerDescriptor(state, mem.sampler, sampler_index);
const auto EmitSample = [&](uint32_t resource, uint32_t array_index) {
const auto& candidate = state.program.info.images[resource];
const auto coord =
CoordF32(ctx, mem, *address, layout.coord,
ImageDimensionInfoFor(candidate.dimension).coordinate_components,
candidate.cube);
const auto sampled = MakeSampledImage(state, resource, sampler_id, 0u, array_index);
const auto sampled = MakeSampledImage(state, resource, sampler_id, 0u, array_index,
sampler_index != 0u);
const auto sample = state.builder.AllocateId();
state.builder.AddFunction(opcode, result_type, sample, sampled, coord,
std::span(&dref_value, dref ? 1u : 0u),