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shader: resolve bounded GPU material keys through sampled image arrays

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Co-authored-by: TheCruZ <thecruzwtf@gmail.com>
This commit is contained in:
nmzik
2026-10-04 06:05:03 +04:00
parent 139b564c01
commit 843b577880
8 changed files with 266 additions and 43 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterImage.cpp
+37 -2
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@@ -776,13 +776,13 @@ void EmitImage(ValueEmitContext& ctx, const IR::Inst& inst) {
operands.push_back(AddressF32(ctx, mem, *address, layout.bias));
}
const auto sampler_id = LoadSamplerDescriptor(state, mem.sampler);
const auto EmitSample = [&](uint32_t resource) {
const auto EmitSample = [&](uint32_t resource, uint32_t array_index = 0u) {
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);
const auto sampled = MakeSampledImage(state, resource, sampler_id, 0u, array_index);
const auto sample = state.builder.AllocateId();
std::vector<uint32_t> sample_operands {result_type, sample, sampled, coord};
if (dref) {
@@ -821,6 +821,41 @@ void EmitImage(ValueEmitContext& ctx, const IR::Inst& inst) {
}
const auto selected = EmitIndirectResourceIndex(
state, key, image.indirect_mapping_offset, image.indirect_search_iterations, 0u);
const auto kind = *IR::DescriptorBindingForImage(image);
const auto& binding = *IR::FindBinding(state.program.bindings, kind);
uint32_t first_child = 0;
bool homogeneous = true;
for (uint32_t ordinal = 0; ordinal < image.indirect_resources.size(); ++ordinal) {
const auto resource = image.indirect_resources[ordinal];
const auto& candidate = state.program.info.images[resource];
if (candidate.dimension != image.dimension || candidate.cube != image.cube ||
IR::DescriptorBindingForImage(candidate) != kind ||
candidate.mip_count != 1u) {
homogeneous = false;
break;
}
if (ordinal == 1u) first_child = ResourceForDescriptor(state, kind, resource);
const auto child_slot = first_child + ordinal - 1u;
if (ordinal > 1u && (child_slot >= binding.resources.size() ||
binding.resources[child_slot] != resource)) {
homogeneous = false;
break;
}
}
if (homogeneous) {
const auto child_index = Binary(state, spv::OpIAdd, TypeU32(state), selected,
ConstantU32(state, first_child - 1u));
const auto is_root = Binary(state, spv::OpIEqual, TypeBool(state), selected,
ConstantU32(state, 0u));
const auto array_index = state.builder.AllocateId();
state.builder.AddFunction(spv::OpSelect, TypeU32(state), array_index, is_root,
ConstantU32(state, ResourceForDescriptor(state, kind, mem.resource)),
child_index);
const auto sample = EmitSample(mem.resource, array_index);
const auto result = dref ? sample : UnpackImageTexel(ctx, mem, sample);
ctx.Define(inst, ResultVector(ctx, result, numeric_class, dref, mem));
return;
}
const auto default_label = state.builder.AllocateId();
const auto merge_label = state.builder.AllocateId();
std::vector<uint32_t> labels(image.indirect_resources.size() - 1u);