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shader: zero image descriptors that only unreached blocks use

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This commit is contained in:
Claxten
2026-10-27 02:12:19 +01:00
committed by nmzik
parent 78adb9293d
commit 9801fd862b
6 changed files with 84 additions and 13 deletions
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src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+9 -5
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@@ -1220,14 +1220,16 @@ static std::vector<ResourceBlock> ResourceControlFlow(const Program& program, co
block.sources.push_back(program.info.buffers.at(memory.resource).source);
} else {
block.sources.push_back(program.info.images.at(memory.resource).source);
block.images.push_back(memory.resource);
if (image.needs_sampler) {
block.sources.push_back(program.info.samplers.at(memory.sampler).source);
}
}
}
std::ranges::sort(block.sources);
block.sources.erase(std::unique(block.sources.begin(), block.sources.end()),
block.sources.end());
for (auto* list: {&block.sources, &block.images}) {
std::ranges::sort(*list);
list->erase(std::unique(list->begin(), list->end()), list->end());
}
}
for (auto& block: blocks) block.condition = predicate(block.condition);
if (std::ranges::none_of(
@@ -1701,7 +1703,7 @@ bool MaterializeResources(const ResourcePlan& program, const SrtRuntime& runtime
}
if (source->indirect_descriptor.has_value()) {
snapshot.images[i] = {.dword_count = 8u};
if (!WalkedActive(program, image.source)) {
if (!WalkedActive(program, image.source) || !WalkedImageActive(program, i)) {
continue;
}
const auto& indirect = *source->indirect_descriptor;
@@ -1721,7 +1723,9 @@ bool MaterializeResources(const ResourcePlan& program, const SrtRuntime& runtime
if (!evaluate(image.source, snapshot.images[i])) {
return false;
}
if (!ValidImageDescriptor(snapshot.images[i], image.r128)) {
// An image listed only by unreached blocks reads zero, not its source's descriptor.
if (!WalkedImageActive(program, i) ||
!ValidImageDescriptor(snapshot.images[i], image.r128)) {
snapshot.images[i].dwords.fill(0);
}
}