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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 =
src/graphics/shader/recompiler/ir/ShaderIR.h
+12 -11
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@@ -168,17 +168,18 @@ struct DescriptorValue {
struct BufferResource {
static constexpr uint32_t NoImageAlias = UINT32_MAX;
uint32_t source = 0;
uint32_t first_use_pc = 0;
uint32_t max_byte_extent = 0;
uint32_t packed_stride = 0;
Prospero::BufferFormat descriptor_format = Prospero::BufferFormat::kInvalid;
uint32_t image_alias = NoImageAlias;
bool read = false;
bool written = false;
bool atomic = false;
bool formatted = false;
bool scalar = false;
uint32_t source = 0;
uint32_t first_use_pc = 0;
uint32_t max_byte_extent = 0;
uint32_t packed_stride = 0;
Prospero::BufferFormat descriptor_format = Prospero::BufferFormat::kInvalid;
uint32_t descriptor_swizzle = DstSel(4, 5, 6, 7);
uint32_t image_alias = NoImageAlias;
bool read = false;
bool written = false;
bool atomic = false;
bool formatted = false;
bool scalar = false;
bool operator==(const BufferResource& other) const = default;
};
src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+5 -3
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@@ -190,7 +190,8 @@ bool ValidateResourceSpecialization(const Program& program, const ResourceSnapsh
return false;
}
if (buffer.packed_stride != descriptor.PackedStride() ||
buffer.descriptor_format != descriptor.Format()) {
buffer.descriptor_format != descriptor.Format() ||
buffer.descriptor_swizzle != descriptor.DstSelXYZW()) {
if (error != nullptr) {
*error = fmt::format("buffer descriptor {} no longer matches specialization", i);
}
@@ -392,8 +393,9 @@ bool SpecializeResources(Program& program, const ResourceSnapshot& snapshot, std
}
return false;
}
next.buffers[i].packed_stride = descriptor.PackedStride();
next.buffers[i].descriptor_format = descriptor.Format();
next.buffers[i].packed_stride = descriptor.PackedStride();
next.buffers[i].descriptor_format = descriptor.Format();
next.buffers[i].descriptor_swizzle = descriptor.DstSelXYZW();
}
for (uint32_t i = 0; i < next.addresses.size(); i++) {
next.addresses[i].specialized_base =
src/graphics/shader/shader.cpp
+4 -2
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@@ -1016,8 +1016,9 @@ static std::string ShaderDescribeSpecialization(const ShaderRecompiler::IR::Prog
program.values != nullptr ? program.values->srt_reads.size() : 0u);
for (uint32_t i = 0; i < program.info.buffers.size(); i++) {
const auto& buffer = program.info.buffers[i];
ret += fmt::format(" b{}[stride={} format={}]", i, buffer.packed_stride,
static_cast<uint32_t>(buffer.descriptor_format));
ret +=
fmt::format(" b{}[stride={} format={} swizzle=0x{:03x}]", i, buffer.packed_stride,
static_cast<uint32_t>(buffer.descriptor_format), buffer.descriptor_swizzle);
}
for (uint32_t i = 0; i < program.info.images.size(); i++) {
const auto& image = program.info.images[i];
@@ -1054,6 +1055,7 @@ static void ShaderAppendNativeSpecialization(std::vector<uint32_t>&
for (const auto& buffer: program.info.buffers) {
ids.push_back(buffer.packed_stride);
ids.push_back(static_cast<uint32_t>(buffer.descriptor_format));
ids.push_back(buffer.descriptor_swizzle);
}
ids.push_back(static_cast<uint32_t>(program.info.images.size()));
for (const auto& image: program.info.images) {