shader: Implement TLD4 and TLD4_B
FernandoS27
ameerj
parent
32c5483beb
commit
c7c518e280
@ -0,0 +1,209 @@
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <optional>
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#include "common/bit_field.h"
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#include "common/common_types.h"
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#include "shader_recompiler/frontend/ir/modifiers.h"
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#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
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namespace Shader::Maxwell {
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namespace {
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enum class TextureType : u64 {
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_1D,
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ARRAY_1D,
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_2D,
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ARRAY_2D,
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_3D,
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ARRAY_3D,
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CUBE,
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ARRAY_CUBE,
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};
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enum class OffsetType : u64 {
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None = 0,
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AOFFI,
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PTP,
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Invalid,
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};
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enum class ComponentType : u64 {
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R = 0,
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G = 1,
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B = 2,
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A = 3,
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};
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Shader::TextureType GetType(TextureType type, bool dc) {
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switch (type) {
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case TextureType::_1D:
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return dc ? Shader::TextureType::Shadow1D : Shader::TextureType::Color1D;
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case TextureType::ARRAY_1D:
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return dc ? Shader::TextureType::ShadowArray1D : Shader::TextureType::ColorArray1D;
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case TextureType::_2D:
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return dc ? Shader::TextureType::Shadow2D : Shader::TextureType::Color2D;
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case TextureType::ARRAY_2D:
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return dc ? Shader::TextureType::ShadowArray2D : Shader::TextureType::ColorArray2D;
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case TextureType::_3D:
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return dc ? Shader::TextureType::Shadow3D : Shader::TextureType::Color3D;
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case TextureType::ARRAY_3D:
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throw NotImplementedException("3D array texture type");
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case TextureType::CUBE:
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return dc ? Shader::TextureType::ShadowCube : Shader::TextureType::ColorCube;
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case TextureType::ARRAY_CUBE:
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return dc ? Shader::TextureType::ShadowArrayCube : Shader::TextureType::ColorArrayCube;
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}
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throw NotImplementedException("Invalid texture type {}", type);
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}
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IR::Value MakeCoords(TranslatorVisitor& v, IR::Reg reg, TextureType type) {
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const auto read_array{[&]() -> IR::F32 { return v.ir.ConvertUToF(32, 16, v.X(reg)); }};
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switch (type) {
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case TextureType::_1D:
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return v.F(reg);
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case TextureType::ARRAY_1D:
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return v.ir.CompositeConstruct(read_array(), v.F(reg + 1));
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case TextureType::_2D:
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return v.ir.CompositeConstruct(v.F(reg), v.F(reg + 1));
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case TextureType::ARRAY_2D:
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return v.ir.CompositeConstruct(read_array(), v.F(reg + 1), v.F(reg + 2));
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case TextureType::_3D:
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return v.ir.CompositeConstruct(v.F(reg), v.F(reg + 1), v.F(reg + 2));
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case TextureType::ARRAY_3D:
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throw NotImplementedException("3D array texture type");
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case TextureType::CUBE:
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return v.ir.CompositeConstruct(v.F(reg), v.F(reg + 1), v.F(reg + 2));
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case TextureType::ARRAY_CUBE:
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return v.ir.CompositeConstruct(read_array(), v.F(reg + 1), v.F(reg + 2), v.F(reg + 3));
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}
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throw NotImplementedException("Invalid texture type {}", type);
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}
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IR::Value MakeOffset(TranslatorVisitor& v, IR::Reg& reg, TextureType type) {
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const IR::U32 value{v.X(reg++)};
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switch (type) {
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case TextureType::_1D:
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case TextureType::ARRAY_1D:
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return v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(6), true);
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case TextureType::_2D:
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case TextureType::ARRAY_2D:
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return v.ir.CompositeConstruct(
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v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(6), true),
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v.ir.BitFieldExtract(value, v.ir.Imm32(8), v.ir.Imm32(6), true));
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case TextureType::_3D:
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case TextureType::ARRAY_3D:
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return v.ir.CompositeConstruct(
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v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(6), true),
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v.ir.BitFieldExtract(value, v.ir.Imm32(8), v.ir.Imm32(6), true),
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v.ir.BitFieldExtract(value, v.ir.Imm32(16), v.ir.Imm32(6), true));
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case TextureType::CUBE:
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case TextureType::ARRAY_CUBE:
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throw NotImplementedException("Illegal offset on CUBE sample");
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}
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throw NotImplementedException("Invalid texture type {}", type);
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}
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std::pair<IR::Value, IR::Value> MakeOffsetPTP(TranslatorVisitor& v, IR::Reg& reg) {
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const IR::U32 value1{v.X(reg++)};
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const IR::U32 value2{v.X(reg++)};
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const auto getVector = ([&v](const IR::U32& value) {
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return v.ir.CompositeConstruct(
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v.ir.BitFieldExtract(value, v.ir.Imm32(0), v.ir.Imm32(6), true),
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v.ir.BitFieldExtract(value, v.ir.Imm32(8), v.ir.Imm32(6), true),
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v.ir.BitFieldExtract(value, v.ir.Imm32(16), v.ir.Imm32(6), true),
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v.ir.BitFieldExtract(value, v.ir.Imm32(24), v.ir.Imm32(6), true));
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});
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return {getVector(value1), getVector(value2)};
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}
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void Impl(TranslatorVisitor& v, u64 insn, ComponentType component_type, OffsetType offset_type,
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bool is_bindless) {
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union {
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u64 raw;
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BitField<35, 1, u64> ndv;
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BitField<49, 1, u64> nodep;
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BitField<50, 1, u64> dc;
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BitField<51, 3, IR::Pred> sparse_pred;
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BitField<0, 8, IR::Reg> dest_reg;
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BitField<8, 8, IR::Reg> coord_reg;
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BitField<20, 8, IR::Reg> meta_reg;
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BitField<28, 3, TextureType> type;
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BitField<31, 4, u64> mask;
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BitField<36, 13, u64> cbuf_offset;
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} const tld4{insn};
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const IR::Value coords{MakeCoords(v, tld4.coord_reg, tld4.type)};
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IR::Reg meta_reg{tld4.meta_reg};
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IR::Value handle;
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IR::Value offset;
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IR::Value offset2;
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IR::F32 dref;
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if (!is_bindless) {
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handle = v.ir.Imm32(static_cast<u32>(tld4.cbuf_offset.Value() * 4));
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} else {
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handle = v.X(meta_reg++);
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}
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switch (offset_type) {
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case OffsetType::None:
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break;
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case OffsetType::AOFFI: {
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offset = MakeOffset(v, meta_reg, tld4.type);
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break;
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}
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case OffsetType::PTP: {
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std::tie(offset, offset2) = MakeOffsetPTP(v, meta_reg);
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break;
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}
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default:
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throw NotImplementedException("Invalid offset type {}", offset_type);
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}
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if (tld4.dc != 0) {
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dref = v.F(meta_reg++);
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}
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IR::TextureInstInfo info{};
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info.type.Assign(GetType(tld4.type, tld4.dc != 0));
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info.gather_component.Assign(static_cast<u32>(component_type));
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const IR::Value sample{[&]() -> IR::Value {
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if (tld4.dc == 0) {
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return v.ir.ImageGather(handle, coords, offset, offset2, info);
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}
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return v.ir.ImageGatherDref(handle, coords, offset, offset2, dref, info);
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}()};
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IR::Reg dest_reg{tld4.dest_reg};
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for (size_t element = 0; element < 4; ++element) {
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if (((tld4.mask >> element) & 1) == 0) {
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continue;
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}
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v.F(dest_reg, IR::F32{v.ir.CompositeExtract(sample, element)});
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++dest_reg;
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}
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if (tld4.sparse_pred != IR::Pred::PT) {
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v.ir.SetPred(tld4.sparse_pred, v.ir.LogicalNot(v.ir.GetSparseFromOp(sample)));
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}
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}
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} // Anonymous namespace
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void TranslatorVisitor::TLD4(u64 insn) {
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union {
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u64 raw;
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BitField<56, 2, ComponentType> component;
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BitField<54, 2, OffsetType> offset;
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} const tld4{insn};
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Impl(*this, insn, tld4.component, tld4.offset, false);
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}
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void TranslatorVisitor::TLD4_b(u64 insn) {
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union {
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u64 raw;
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BitField<38, 2, ComponentType> component;
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BitField<36, 2, OffsetType> offset;
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} const tld4{insn};
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Impl(*this, insn, tld4.component, tld4.offset, true);
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}
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} // namespace Shader::Maxwell
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