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shader: fix missing homogeneous semantics

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This commit is contained in:
nmzik
2026-08-16 03:35:27 +02:00
parent 67e550f2e7
commit 5e27a28ab0
6 changed files with 130 additions and 21 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterValueMemory.cpp
+19 -4
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@@ -222,8 +222,8 @@ Prospero::BufferFormat BufferFormat(const ValueEmitContext& ctx, const IR::Inst&
IR::MemoryInfo RebaseFormattedComponent(IR::MemoryInfo mem, Prospero::BufferFormat format,
uint32_t component) {
if (!mem.typed && component != 0u) {
const auto component_slot = component * 4u;
if (!mem.typed) {
const auto component_slot = mem.component_index * 4u;
mem.offset = mem.offset >= component_slot ? mem.offset - component_slot : 0u;
mem.offset += Format::GetFormatComponentByteOffset(format, component);
}
@@ -234,12 +234,27 @@ uint32_t FormattedLoad(ValueEmitContext& ctx, const IR::Inst& inst, const IR::Me
const auto format = BufferFormat(ctx, inst, mem);
if (!Format::IsKnownFormat(format)) return LoadWord(ctx, inst, mem);
const auto info = Format::GetFormatInfo(format);
const auto component = mem.component_index;
auto component = mem.component_index;
if (!mem.typed) {
const auto selector =
GetDstSel(ctx.state.program.info.buffers[mem.resource].descriptor_swizzle, component);
if (selector == 0u) return ConstantU32(ctx.state, 0);
if (selector == 1u) {
const auto integer = info.type == Format::ComponentType::Uint ||
info.type == Format::ComponentType::Sint;
return ConstantU32(ctx.state, integer ? 1u : 0x3f800000u);
}
if (selector < 4u) {
ExitDescriptorBindingFailure(ctx.state, IR::DescriptorBindingKind::Buffers,
mem.resource, "buffer descriptor has reserved dst_sel");
}
component = selector - 4u;
}
if (component >= info.component_count) return ConstantU32(ctx.state, 0);
uint32_t raw = 0;
const auto bits = info.component_bits[component];
if (info.packed_bitfield) {
raw = LoadWord(ctx, inst, mem);
raw = LoadWord(ctx, inst, RebaseFormattedComponent(mem, format, component));
const auto type =
IsSignedFormatComponent(info.type) ? ctx.state.int_type : ctx.state.uint_type;
const auto source =