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graphics: share signed storage conversion and support R16 image writes

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Co-authored-by: fxpw <fxpw@outlook.com>
This commit is contained in:
nmzik
2026-10-14 15:36:29 +02:00
parent f3c017b168
commit c88f05f7b5
7 changed files with 227 additions and 45 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterImage.cpp
+14 -8
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@@ -385,9 +385,10 @@ Format::BufferFormatInfo ImageConversionFormat(const EmitterState& state,
const auto format = image.conversion_format;
if (format == Prospero::BufferFormat::kInvalid) return {};
const auto info = Format::GetFormatInfo(format);
EXIT_IF(Prospero::RemapTextureFormat(format) == format || info.component_count == 0u ||
const bool raw_signed = IR::RawSignedStorageFormat(image, format) != Prospero::BufferFormat::kInvalid;
EXIT_IF((Prospero::RemapTextureFormat(format) == format && !raw_signed) || info.component_count == 0u ||
info.component_count > 4u);
EXIT_IF(info.type != Format::ComponentType::Uscaled &&
EXIT_IF(!raw_signed && info.type != Format::ComponentType::Uscaled &&
((info.type != Format::ComponentType::Uint &&
info.type != Format::ComponentType::Unorm) || !info.packed_bitfield ||
info.byte_size != sizeof(uint32_t)));
@@ -610,15 +611,16 @@ uint32_t EmitOneDimensionalGatherLz(ValueEmitContext& ctx, const IR::MemoryInfo&
uint32_t StoreTexel(ValueEmitContext& ctx, const IR::MemoryInfo& mem, uint32_t data, bool integer) {
const auto swizzle = ctx.state.program.info.images[mem.resource].shader_swizzle;
const auto info = ImageConversionFormat(ctx.state, mem);
const bool packed = info.format != Prospero::BufferFormat::kInvalid;
EXIT_IF(packed && (!info.packed_bitfield ||
(info.type != Format::ComponentType::Uint &&
info.type != Format::ComponentType::Unorm)));
const bool converted = info.format != Prospero::BufferFormat::kInvalid;
const bool packed = info.packed_bitfield;
EXIT_IF(converted && info.type != Format::ComponentType::Sint &&
(!packed || (info.type != Format::ComponentType::Uint &&
info.type != Format::ComponentType::Unorm)));
const auto zero = ConstantU32(ctx.state, 0);
uint32_t values[4] {zero, zero, zero, zero};
auto packed_value = zero;
const auto dmask = mem.dmask != 0u ? mem.dmask : 1u;
for (uint32_t component = 0; component < (packed ? info.component_count : 4u); component++) {
for (uint32_t component = 0; component < (converted ? info.component_count : 4u); component++) {
const auto source = InverseSwizzle(swizzle, component);
const bool selected = source < 4u && ((dmask >> source) & 1u) != 0u;
uint32_t raw = zero;
@@ -638,9 +640,13 @@ uint32_t StoreTexel(ValueEmitContext& ctx, const IR::MemoryInfo& mem, uint32_t d
}
}
}
if (packed) {
if (converted) {
if (!selected) continue;
auto value = EncodeFormattedStoreComponent(ctx.state, info, component, raw, mem.data_bits);
if (!packed) {
values[component] = value;
continue;
}
if (info.type == Format::ComponentType::Uint) {
value = EmitUMin32(ctx.state, value,
ConstantU32(ctx.state, (1u << info.component_bits[component]) - 1u));
src/graphics/shader/recompiler/backend/spirv/spirvEmitterMemoryHelpers.cpp
+7
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@@ -435,6 +435,13 @@ uint32_t EncodeFormattedStoreComponent(EmitterState& state, const Format::Buffer
data = EmitBitCastU32F32(state, EmitF16BitsToF32(state, data));
}
}
if (info.type == Format::ComponentType::Sint && bits < 32u) {
const auto maximum = (1u << (bits - 1u)) - 1u;
data = EmitSMax32(state, data, ConstantU32(state, ~maximum));
data = EmitSMin32(state, data, ConstantU32(state, maximum));
return Binary(state, spv::OpBitwiseAnd, TypeU32(state), data,
ConstantU32(state, (1u << bits) - 1u));
}
const bool normalized = info.type == Format::ComponentType::Unorm ||
info.type == Format::ComponentType::Snorm;
const bool scaled = info.type == Format::ComponentType::Uscaled ||
src/graphics/shader/recompiler/ir/ShaderIR.h
+11
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@@ -169,6 +169,17 @@ struct ImageResource {
bool operator==(const ImageResource& other) const = default;
};
[[nodiscard]] constexpr Prospero::BufferFormat
RawSignedStorageFormat(const ImageResource& image, Prospero::BufferFormat format) {
if (image.resource_class != ImageResourceClass::Storage || !image.written)
return Prospero::BufferFormat::kInvalid;
if (format == Prospero::BufferFormat::k32SInt && (image.atomic ? !image.atomic64 : !image.read))
return Prospero::BufferFormat::k32UInt;
if (format == Prospero::BufferFormat::k16SInt && !image.read && !image.atomic)
return Prospero::BufferFormat::k16UInt;
return Prospero::BufferFormat::kInvalid;
}
struct SamplerResource {
uint32_t source = 0;
uint32_t first_use_pc = 0;
src/graphics/shader/recompiler/ir/passes/ResourceMaterialization.cpp
+3 -2
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@@ -755,8 +755,9 @@ static bool BuildResourceSpecialization(const ResourcePlan& program, ResourceSna
if (storage || image.conversion_format != Prospero::BufferFormat::kInvalid) {
image.shader_swizzle = DescriptorImageSwizzle(descriptor);
}
const bool raw_sint_storage = storage && format == Prospero::BufferFormat::k32SInt &&
base.written && (base.atomic ? !base.atomic64 : !base.read);
const auto raw_sint_format = RawSignedStorageFormat(base, format);
const bool raw_sint_storage = raw_sint_format != Prospero::BufferFormat::kInvalid;
if (raw_sint_format == Prospero::BufferFormat::k16UInt) image.conversion_format = format;
image.numeric_class = Prospero::SampledTextureNumericClass(
Prospero::RemapTextureFormat(format));
if (!storage && format == Prospero::BufferFormat::k11_11_10UNorm) {