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shader: plan finite GPU-selected RGBA16 buffer stores

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This commit is contained in:
nmzik
2026-10-14 19:13:16 +02:00
parent 7468e4f60a
commit c914435f20
4 changed files with 207 additions and 43 deletions
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src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+10 -6
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@@ -253,12 +253,16 @@ bool NormalizeIndirectBuffer(DescriptorValue& value, bool indexed, const BufferR
const auto format = Format::GetFormatInfo(descriptor.Format());
if (!indexed || format.type == Format::ComponentType::Unknown)
return SpecializationFail("indirect formatted buffers require a supported indexed format");
if (!formatted_read &&
((descriptor.Format() != Prospero::BufferFormat::k32UInt &&
descriptor.Format() != Prospero::BufferFormat::k8SInt) ||
descriptor.DstSelXYZW() != DstSel(4, 0, 0, 0) ||
descriptor.Stride() != format.byte_size))
return SpecializationFail("indirect formatted X stores require tight SInt8 or UInt32 identity records");
if (!formatted_read) {
const bool scalar = resource.max_byte_extent == 4u &&
(descriptor.Format() == Prospero::BufferFormat::k32UInt ||
descriptor.Format() == Prospero::BufferFormat::k8SInt);
const bool rgba16 = resource.max_byte_extent == 16u &&
descriptor.Format() == Prospero::BufferFormat::k16_16_16_16Float;
if ((!scalar && !rgba16) || descriptor.Stride() != format.byte_size ||
descriptor.DstSelXYZW() != (rgba16 ? DstSel(4, 5, 6, 7) : DstSel(4, 0, 0, 0)))
return SpecializationFail("indirect formatted stores require tight identity SInt8, UInt32 or RGBA16Float records");
}
if (formatted_read &&
(descriptor.Base48() == 0u || descriptor.Stride() == 0u || descriptor.NumRecords() == 0u)) {
// Every index is out of bounds. Preserve the format and swizzle constants.