diff options
Diffstat (limited to 'src/shader_recompiler/frontend/maxwell/translate/impl/texture_mipmap_level.cpp')
-rw-r--r-- | src/shader_recompiler/frontend/maxwell/translate/impl/texture_mipmap_level.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/texture_mipmap_level.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/texture_mipmap_level.cpp new file mode 100644 index 000000000..aea3c0e62 --- /dev/null +++ b/src/shader_recompiler/frontend/maxwell/translate/impl/texture_mipmap_level.cpp @@ -0,0 +1,131 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <optional> + +#include "common/bit_field.h" +#include "common/common_types.h" +#include "shader_recompiler/frontend/ir/modifiers.h" +#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h" + +namespace Shader::Maxwell { +namespace { + +enum class TextureType : u64 { + _1D, + ARRAY_1D, + _2D, + ARRAY_2D, + _3D, + ARRAY_3D, + CUBE, + ARRAY_CUBE, +}; + +Shader::TextureType GetType(TextureType type) { + switch (type) { + case TextureType::_1D: + return Shader::TextureType::Color1D; + case TextureType::ARRAY_1D: + return Shader::TextureType::ColorArray1D; + case TextureType::_2D: + return Shader::TextureType::Color2D; + case TextureType::ARRAY_2D: + return Shader::TextureType::ColorArray2D; + case TextureType::_3D: + return Shader::TextureType::Color3D; + case TextureType::ARRAY_3D: + throw NotImplementedException("3D array texture type"); + case TextureType::CUBE: + return Shader::TextureType::ColorCube; + case TextureType::ARRAY_CUBE: + return Shader::TextureType::ColorArrayCube; + } + throw NotImplementedException("Invalid texture type {}", type); +} + +IR::Value MakeCoords(TranslatorVisitor& v, IR::Reg reg, TextureType type) { + // The ISA reads an array component here, but this is not needed on high level shading languages + // We are dropping this information. + switch (type) { + case TextureType::_1D: + return v.F(reg); + case TextureType::ARRAY_1D: + return v.F(reg + 1); + case TextureType::_2D: + return v.ir.CompositeConstruct(v.F(reg), v.F(reg + 1)); + case TextureType::ARRAY_2D: + return v.ir.CompositeConstruct(v.F(reg + 1), v.F(reg + 2)); + case TextureType::_3D: + return v.ir.CompositeConstruct(v.F(reg), v.F(reg + 1), v.F(reg + 2)); + case TextureType::ARRAY_3D: + throw NotImplementedException("3D array texture type"); + case TextureType::CUBE: + return v.ir.CompositeConstruct(v.F(reg), v.F(reg + 1), v.F(reg + 2)); + case TextureType::ARRAY_CUBE: + return v.ir.CompositeConstruct(v.F(reg + 1), v.F(reg + 2), v.F(reg + 3)); + } + throw NotImplementedException("Invalid texture type {}", type); +} + +void Impl(TranslatorVisitor& v, u64 insn, bool is_bindless) { + union { + u64 raw; + BitField<49, 1, u64> nodep; + BitField<35, 1, u64> ndv; + BitField<0, 8, IR::Reg> dest_reg; + BitField<8, 8, IR::Reg> coord_reg; + BitField<20, 8, IR::Reg> meta_reg; + BitField<28, 3, TextureType> type; + BitField<31, 4, u64> mask; + BitField<36, 13, u64> cbuf_offset; + } const tmml{insn}; + + if ((tmml.mask & 0b1100) != 0) { + throw NotImplementedException("TMML BA results are not implmented"); + } + const IR::Value coords{MakeCoords(v, tmml.coord_reg, tmml.type)}; + + IR::U32 handle; + IR::Reg meta_reg{tmml.meta_reg}; + if (is_bindless) { + handle = v.X(meta_reg++); + } else { + handle = v.ir.Imm32(static_cast<u32>(tmml.cbuf_offset.Value() * 4)); + } + IR::TextureInstInfo info{}; + info.type.Assign(GetType(tmml.type)); + const IR::Value sample{v.ir.ImageQueryLod(handle, coords, info)}; + + IR::Reg dest_reg{tmml.dest_reg}; + for (size_t element = 0; element < 4; ++element) { + if (((tmml.mask >> element) & 1) == 0) { + continue; + } + IR::F32 value{v.ir.CompositeExtract(sample, element)}; + if (element < 2) { + IR::U32 casted_value; + if (element == 0) { + casted_value = v.ir.ConvertFToU(32, value); + } else { + casted_value = v.ir.ConvertFToS(16, value); + } + v.X(dest_reg, v.ir.ShiftLeftLogical(casted_value, v.ir.Imm32(8))); + } else { + v.F(dest_reg, value); + } + ++dest_reg; + } +} +} // Anonymous namespace + +void TranslatorVisitor::TMML(u64 insn) { + Impl(*this, insn, false); +} + +void TranslatorVisitor::TMML_b(u64 insn) { + Impl(*this, insn, true); +} + +} // namespace Shader::Maxwell |