suyu/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp

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// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/container/static_vector.hpp>
#include "shader_recompiler/backend/spirv/emit_spirv.h"
#include "shader_recompiler/frontend/ir/modifiers.h"
namespace Shader::Backend::SPIRV {
namespace {
class ImageOperands {
public:
explicit ImageOperands(EmitContext& ctx, bool has_bias, bool has_lod, bool has_lod_clamp,
Id lod, Id offset) {
if (has_bias) {
const Id bias{has_lod_clamp ? ctx.OpCompositeExtract(ctx.F32[1], lod, 0) : lod};
Add(spv::ImageOperandsMask::Bias, bias);
}
if (has_lod) {
const Id lod_value{has_lod_clamp ? ctx.OpCompositeExtract(ctx.F32[1], lod, 0) : lod};
Add(spv::ImageOperandsMask::Lod, lod_value);
}
if (Sirit::ValidId(offset)) {
Add(spv::ImageOperandsMask::Offset, offset);
}
if (has_lod_clamp) {
const Id lod_clamp{has_bias ? ctx.OpCompositeExtract(ctx.F32[1], lod, 1) : lod};
Add(spv::ImageOperandsMask::MinLod, lod_clamp);
}
}
explicit ImageOperands(EmitContext& ctx, const IR::Value& offset, const IR::Value& offset2) {
if (offset2.IsEmpty()) {
if (offset.IsEmpty()) {
return;
}
Add(spv::ImageOperandsMask::Offset, ctx.Def(offset));
return;
}
const std::array values{offset.InstRecursive(), offset2.InstRecursive()};
if (!values[0]->AreAllArgsImmediates() || !values[1]->AreAllArgsImmediates()) {
throw NotImplementedException("Not all arguments in PTP are immediate");
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}
const IR::Opcode opcode{values[0]->Opcode()};
if (opcode != values[1]->Opcode() || opcode != IR::Opcode::CompositeConstructU32x4) {
throw LogicError("Invalid PTP arguments");
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}
auto read{[&](int a, int b) { return ctx.Constant(ctx.U32[1], values[a]->Arg(b).U32()); }};
const Id offsets{
ctx.ConstantComposite(ctx.TypeArray(ctx.U32[2], ctx.Constant(ctx.U32[1], 4)),
ctx.ConstantComposite(ctx.U32[2], read(0, 0), read(0, 1)),
ctx.ConstantComposite(ctx.U32[2], read(0, 2), read(0, 3)),
ctx.ConstantComposite(ctx.U32[2], read(1, 0), read(1, 1)),
ctx.ConstantComposite(ctx.U32[2], read(1, 2), read(1, 3)))};
Add(spv::ImageOperandsMask::ConstOffsets, offsets);
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}
explicit ImageOperands(Id offset, Id lod, Id ms) {
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if (Sirit::ValidId(lod)) {
Add(spv::ImageOperandsMask::Lod, lod);
}
if (Sirit::ValidId(offset)) {
Add(spv::ImageOperandsMask::Offset, offset);
}
if (Sirit::ValidId(ms)) {
Add(spv::ImageOperandsMask::Sample, ms);
}
}
void Add(spv::ImageOperandsMask new_mask, Id value) {
mask = static_cast<spv::ImageOperandsMask>(static_cast<unsigned>(mask) |
static_cast<unsigned>(new_mask));
operands.push_back(value);
}
std::span<const Id> Span() const noexcept {
return std::span{operands.data(), operands.size()};
}
spv::ImageOperandsMask Mask() const noexcept {
return mask;
}
private:
boost::container::static_vector<Id, 3> operands;
spv::ImageOperandsMask mask{};
};
Id Texture(EmitContext& ctx, const IR::Value& index) {
if (index.IsImmediate()) {
const TextureDefinition def{ctx.textures.at(index.U32())};
return ctx.OpLoad(def.type, def.id);
}
throw NotImplementedException("Indirect texture sample");
}
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Id Decorate(EmitContext& ctx, IR::Inst* inst, Id sample) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
if (info.relaxed_precision != 0) {
ctx.Decorate(sample, spv::Decoration::RelaxedPrecision);
}
return sample;
}
template <typename MethodPtrType, typename... Args>
Id Emit(MethodPtrType sparse_ptr, MethodPtrType non_sparse_ptr, EmitContext& ctx, IR::Inst* inst,
Id result_type, Args&&... args) {
IR::Inst* const sparse{inst->GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)};
if (!sparse) {
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return Decorate(ctx, inst, (ctx.*non_sparse_ptr)(result_type, std::forward<Args>(args)...));
}
const Id struct_type{ctx.TypeStruct(ctx.U32[1], result_type)};
const Id sample{(ctx.*sparse_ptr)(struct_type, std::forward<Args>(args)...)};
const Id resident_code{ctx.OpCompositeExtract(ctx.U32[1], sample, 0U)};
sparse->SetDefinition(ctx.OpImageSparseTexelsResident(ctx.U1, resident_code));
sparse->Invalidate();
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Decorate(ctx, inst, sample);
return ctx.OpCompositeExtract(result_type, sample, 1U);
}
} // Anonymous namespace
Id EmitBindlessImageSampleImplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBindlessImageSampleExplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBindlessImageSampleDrefImplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBindlessImageSampleDrefExplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
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Id EmitBindlessImageGather(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBindlessImageGatherDref(EmitContext&) {
throw LogicError("Unreachable instruction");
}
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Id EmitBindlessImageFetch(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageSampleImplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageSampleExplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageSampleDrefImplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageSampleDrefExplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
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Id EmitBoundImageGather(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageGatherDref(EmitContext&) {
throw LogicError("Unreachable instruction");
}
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Id EmitBoundImageFetch(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id bias_lc, Id offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc,
offset);
return Emit(&EmitContext::OpImageSparseSampleImplicitLod,
&EmitContext::OpImageSampleImplicitLod, ctx, inst, ctx.F32[4], Texture(ctx, index),
coords, operands.Mask(), operands.Span());
}
Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id lod_lc, Id offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, false, true, info.has_lod_clamp != 0, lod_lc, offset);
return Emit(&EmitContext::OpImageSparseSampleExplicitLod,
&EmitContext::OpImageSampleExplicitLod, ctx, inst, ctx.F32[4], Texture(ctx, index),
coords, operands.Mask(), operands.Span());
}
Id EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id coords, Id dref, Id bias_lc, Id offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, info.has_bias != 0, false, info.has_lod_clamp != 0, bias_lc,
offset);
return Emit(&EmitContext::OpImageSparseSampleDrefImplicitLod,
&EmitContext::OpImageSampleDrefImplicitLod, ctx, inst, ctx.F32[1],
Texture(ctx, index), coords, dref, operands.Mask(), operands.Span());
}
Id EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id coords, Id dref, Id lod_lc, Id offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(ctx, false, true, info.has_lod_clamp != 0, lod_lc, offset);
return Emit(&EmitContext::OpImageSparseSampleDrefExplicitLod,
&EmitContext::OpImageSampleDrefExplicitLod, ctx, inst, ctx.F32[1],
Texture(ctx, index), coords, dref, operands.Mask(), operands.Span());
}
Id EmitImageGather(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
const IR::Value& offset, const IR::Value& offset2) {
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const auto info{inst->Flags<IR::TextureInstInfo>()};
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const ImageOperands operands(ctx, offset, offset2);
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return Emit(&EmitContext::OpImageSparseGather, &EmitContext::OpImageGather, ctx, inst,
ctx.F32[4], Texture(ctx, index), coords,
ctx.Constant(ctx.U32[1], info.gather_component.Value()), operands.Mask(),
operands.Span());
}
Id EmitImageGatherDref(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
const IR::Value& offset, const IR::Value& offset2, Id dref) {
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const auto info{inst->Flags<IR::TextureInstInfo>()};
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const ImageOperands operands(ctx, offset, offset2);
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return Emit(&EmitContext::OpImageSparseDrefGather, &EmitContext::OpImageDrefGather, ctx, inst,
ctx.F32[4], Texture(ctx, index), coords, dref, operands.Mask(), operands.Span());
}
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Id EmitImageFetch(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, Id offset,
Id lod, Id ms) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
const ImageOperands operands(offset, lod, ms);
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return Emit(&EmitContext::OpImageSparseFetch, &EmitContext::OpImageFetch, ctx, inst, ctx.F32[4],
Texture(ctx, index), coords, operands.Mask(), operands.Span());
}
} // namespace Shader::Backend::SPIRV