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shader_recompiler: use float image operations on load/store when required

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This commit is contained in:
Liam
2023-12-19 10:55:56 -05:00
parent 3d268b8480
commit 9e9aed41be
10 changed files with 184 additions and 39 deletions
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22
src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
View File

@ -214,16 +214,16 @@ Id TextureImage(EmitContext& ctx, IR::TextureInstInfo info, const IR::Value& ind
}
}
Id Image(EmitContext& ctx, const IR::Value& index, IR::TextureInstInfo info) {
std::pair<Id, bool> Image(EmitContext& ctx, const IR::Value& index, IR::TextureInstInfo info) {
if (!index.IsImmediate() || index.U32() != 0) {
throw NotImplementedException("Indirect image indexing");
}
if (info.type == TextureType::Buffer) {
const ImageBufferDefinition def{ctx.image_buffers.at(info.descriptor_index)};
return ctx.OpLoad(def.image_type, def.id);
return {ctx.OpLoad(def.image_type, def.id), def.is_integer};
} else {
const ImageDefinition def{ctx.images.at(info.descriptor_index)};
return ctx.OpLoad(def.image_type, def.id);
return {ctx.OpLoad(def.image_type, def.id), def.is_integer};
}
}
@ -566,13 +566,23 @@ Id EmitImageRead(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id co
LOG_WARNING(Shader_SPIRV, "Typeless image read not supported by host");
return ctx.ConstantNull(ctx.U32[4]);
}
return Emit(&EmitContext::OpImageSparseRead, &EmitContext::OpImageRead, ctx, inst, ctx.U32[4],
Image(ctx, index, info), coords, std::nullopt, std::span<const Id>{});
const auto [image, is_integer] = Image(ctx, index, info);
const Id result_type{is_integer ? ctx.U32[4] : ctx.F32[4]};
Id color{Emit(&EmitContext::OpImageSparseRead, &EmitContext::OpImageRead, ctx, inst,
result_type, image, coords, std::nullopt, std::span<const Id>{})};
if (!is_integer) {
color = ctx.OpBitcast(ctx.U32[4], color);
}
return color;
}
void EmitImageWrite(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, Id color) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
ctx.OpImageWrite(Image(ctx, index, info), coords, color);
const auto [image, is_integer] = Image(ctx, index, info);
if (!is_integer) {
color = ctx.OpBitcast(ctx.F32[4], color);
}
ctx.OpImageWrite(image, coords, color);
}
Id EmitIsTextureScaled(EmitContext& ctx, const IR::Value& index) {

22
src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
View File

@ -74,20 +74,19 @@ spv::ImageFormat GetImageFormat(ImageFormat format) {
throw InvalidArgument("Invalid image format {}", format);
}
Id ImageType(EmitContext& ctx, const ImageDescriptor& desc) {
Id ImageType(EmitContext& ctx, const ImageDescriptor& desc, Id sampled_type) {
const spv::ImageFormat format{GetImageFormat(desc.format)};
const Id type{ctx.U32[1]};
switch (desc.type) {
case TextureType::Color1D:
return ctx.TypeImage(type, spv::Dim::Dim1D, false, false, false, 2, format);
return ctx.TypeImage(sampled_type, spv::Dim::Dim1D, false, false, false, 2, format);
case TextureType::ColorArray1D:
return ctx.TypeImage(type, spv::Dim::Dim1D, false, true, false, 2, format);
return ctx.TypeImage(sampled_type, spv::Dim::Dim1D, false, true, false, 2, format);
case TextureType::Color2D:
return ctx.TypeImage(type, spv::Dim::Dim2D, false, false, false, 2, format);
return ctx.TypeImage(sampled_type, spv::Dim::Dim2D, false, false, false, 2, format);
case TextureType::ColorArray2D:
return ctx.TypeImage(type, spv::Dim::Dim2D, false, true, false, 2, format);
return ctx.TypeImage(sampled_type, spv::Dim::Dim2D, false, true, false, 2, format);
case TextureType::Color3D:
return ctx.TypeImage(type, spv::Dim::Dim3D, false, false, false, 2, format);
return ctx.TypeImage(sampled_type, spv::Dim::Dim3D, false, false, false, 2, format);
case TextureType::Buffer:
throw NotImplementedException("Image buffer");
default:
@ -1273,7 +1272,9 @@ void EmitContext::DefineImageBuffers(const Info& info, u32& binding) {
throw NotImplementedException("Array of image buffers");
}
const spv::ImageFormat format{GetImageFormat(desc.format)};
const Id image_type{TypeImage(U32[1], spv::Dim::Buffer, false, false, false, 2, format)};
const Id sampled_type{desc.is_integer ? U32[1] : F32[1]};
const Id image_type{
TypeImage(sampled_type, spv::Dim::Buffer, false, false, false, 2, format)};
const Id pointer_type{TypePointer(spv::StorageClass::UniformConstant, image_type)};
const Id id{AddGlobalVariable(pointer_type, spv::StorageClass::UniformConstant)};
Decorate(id, spv::Decoration::Binding, binding);
@ -1283,6 +1284,7 @@ void EmitContext::DefineImageBuffers(const Info& info, u32& binding) {
.id = id,
.image_type = image_type,
.count = desc.count,
.is_integer = desc.is_integer,
});
if (profile.supported_spirv >= 0x00010400) {
interfaces.push_back(id);
@ -1327,7 +1329,8 @@ void EmitContext::DefineImages(const Info& info, u32& binding, u32& scaling_inde
if (desc.count != 1) {
throw NotImplementedException("Array of images");
}
const Id image_type{ImageType(*this, desc)};
const Id sampled_type{desc.is_integer ? U32[1] : F32[1]};
const Id image_type{ImageType(*this, desc, sampled_type)};
const Id pointer_type{TypePointer(spv::StorageClass::UniformConstant, image_type)};
const Id id{AddGlobalVariable(pointer_type, spv::StorageClass::UniformConstant)};
Decorate(id, spv::Decoration::Binding, binding);
@ -1337,6 +1340,7 @@ void EmitContext::DefineImages(const Info& info, u32& binding, u32& scaling_inde
.id = id,
.image_type = image_type,
.count = desc.count,
.is_integer = desc.is_integer,
});
if (profile.supported_spirv >= 0x00010400) {
interfaces.push_back(id);

2
src/shader_recompiler/backend/spirv/spirv_emit_context.h
View File

@ -47,12 +47,14 @@ struct ImageBufferDefinition {
Id id;
Id image_type;
u32 count;
bool is_integer;
};
struct ImageDefinition {
Id id;
Id image_type;
u32 count;
bool is_integer;
};
struct UniformDefinitions {