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shader: enumerate set ranks of eight-word light bitmaps

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Claxten authored and nmzik committed 2026-10-27 04:23:00 +01:00
1 parent ffb6ad6cab
commit 914a3bb4b8
3 files changed
+122 -57
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src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+7 -5
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@@ -377,19 +377,21 @@ bool ResolveSelectorKeys(const ResourcePlan& program, const DescriptorSource::In
}
} else if (selector->bitset) {
ShaderBufferResource material;
std::array<uint32_t, 4> masks {};
std::array<uint32_t, 8> storage {};
const auto record_words = std::min<size_t>(selector->stride / 4u, storage.size());
const auto masks = std::span(storage).first(record_words);
uint32_t first = 0, count = 0;
if (!DecodeBufferDescriptor(material_value, material) ||
!WalkedValue(program, indirect.selector_first, first) ||
!EvaluateIndirectCount(program, indirect, runtime, count) || count != masks.size() * 32u ||
selector->stride != sizeof(masks) || selector->offset != 0u ||
material.Type() != 0u || material.Stride() != sizeof(masks) ||
selector->stride != masks.size_bytes() || selector->offset != 0u ||
material.Type() != 0u || material.Stride() != selector->stride ||
material.SwizzleEnabled() || material.AddTid() || material.OutOfBounds() != 0u ||
(material.Base48() & 3u) != 0u) return false;
if (material.Format() != Prospero::BufferFormat::kInvalid) {
const auto words = material.GetSize() / sizeof(uint32_t);
// Bitmap storage can grow with resolution while its candidate domain stays
// at 128 keys. Bound scratch memory, preserving each coherent read's capture.
// Bitmap storage can grow with resolution while its candidate domain stays at 32 keys
// per record word. Bound scratch memory, preserving each coherent read's capture.
for (uint64_t first_word = 0; first_word < words; first_word += keys.size()) {
keys.resize(std::min<uint64_t>(words - first_word, MaxIndirectDescriptorProbes));
if (!ReadScalarTable(material.Base48(), material.GetSize(), first_word * 4u,