From 06c4ce86458310870abec90ada68ac393256b9b6 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Sat, 27 Apr 2019 02:07:18 -0300 Subject: shader: Decode SUST and implement backing image functionality --- src/video_core/shader/decode.cpp | 1 + src/video_core/shader/decode/image.cpp | 89 ++++++++++++++++++++++++++++++++++ src/video_core/shader/node.h | 42 +++++++++++++++- src/video_core/shader/shader_ir.h | 9 ++++ 4 files changed, 140 insertions(+), 1 deletion(-) create mode 100644 src/video_core/shader/decode/image.cpp (limited to 'src/video_core/shader') diff --git a/src/video_core/shader/decode.cpp b/src/video_core/shader/decode.cpp index a0554c97e..2c9ff28f2 100644 --- a/src/video_core/shader/decode.cpp +++ b/src/video_core/shader/decode.cpp @@ -169,6 +169,7 @@ u32 ShaderIR::DecodeInstr(NodeBlock& bb, u32 pc) { {OpCode::Type::Conversion, &ShaderIR::DecodeConversion}, {OpCode::Type::Memory, &ShaderIR::DecodeMemory}, {OpCode::Type::Texture, &ShaderIR::DecodeTexture}, + {OpCode::Type::Image, &ShaderIR::DecodeImage}, {OpCode::Type::FloatSetPredicate, &ShaderIR::DecodeFloatSetPredicate}, {OpCode::Type::IntegerSetPredicate, &ShaderIR::DecodeIntegerSetPredicate}, {OpCode::Type::HalfSetPredicate, &ShaderIR::DecodeHalfSetPredicate}, diff --git a/src/video_core/shader/decode/image.cpp b/src/video_core/shader/decode/image.cpp new file mode 100644 index 000000000..66fdf5714 --- /dev/null +++ b/src/video_core/shader/decode/image.cpp @@ -0,0 +1,89 @@ +// Copyright 2019 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include + +#include "common/assert.h" +#include "common/common_types.h" +#include "video_core/engines/shader_bytecode.h" +#include "video_core/shader/shader_ir.h" + +namespace VideoCommon::Shader { + +using Tegra::Shader::Instruction; +using Tegra::Shader::OpCode; + +namespace { +std::size_t GetImageTypeNumCoordinates(Tegra::Shader::ImageType image_type) { + switch (image_type) { + case Tegra::Shader::ImageType::Texture1D: + case Tegra::Shader::ImageType::TextureBuffer: + return 1; + case Tegra::Shader::ImageType::Texture1DArray: + case Tegra::Shader::ImageType::Texture2D: + return 2; + case Tegra::Shader::ImageType::Texture2DArray: + case Tegra::Shader::ImageType::Texture3D: + return 3; + } + UNREACHABLE(); + return 1; +} +} // Anonymous namespace + +u32 ShaderIR::DecodeImage(NodeBlock& bb, u32 pc) { + const Instruction instr = {program_code[pc]}; + const auto opcode = OpCode::Decode(instr); + + switch (opcode->get().GetId()) { + case OpCode::Id::SUST: { + UNIMPLEMENTED_IF(instr.sust.mode != Tegra::Shader::SurfaceDataMode::P); + UNIMPLEMENTED_IF(instr.sust.image_type == Tegra::Shader::ImageType::TextureBuffer); + UNIMPLEMENTED_IF(instr.sust.out_of_bounds_store != Tegra::Shader::OutOfBoundsStore::Ignore); + UNIMPLEMENTED_IF(instr.sust.component_mask_selector != 0xf); // Ensure we have an RGBA store + + std::vector values; + constexpr std::size_t hardcoded_size{4}; + for (std::size_t i = 0; i < hardcoded_size; ++i) { + values.push_back(GetRegister(instr.gpr0.Value() + i)); + } + + std::vector coords; + const std::size_t num_coords{GetImageTypeNumCoordinates(instr.sust.image_type)}; + for (std::size_t i = 0; i < num_coords; ++i) { + coords.push_back(GetRegister(instr.gpr8.Value() + i)); + } + + ASSERT(instr.sust.is_immediate); + const auto& image{GetImage(instr.image, instr.sust.image_type)}; + MetaImage meta{image, values}; + const Node store{Operation(OperationCode::ImageStore, meta, std::move(coords))}; + bb.push_back(store); + break; + } + default: + UNIMPLEMENTED_MSG("Unhandled conversion instruction: {}", opcode->get().GetName()); + } + + return pc; +} + +const Image& ShaderIR::GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type) { + const auto offset{static_cast(image.index.Value())}; + + // If this image has already been used, return the existing mapping. + const auto itr{std::find_if(used_images.begin(), used_images.end(), + [=](const Image& entry) { return entry.GetOffset() == offset; })}; + if (itr != used_images.end()) { + ASSERT(itr->GetType() == type); + return *itr; + } + + // Otherwise create a new mapping for this image. + const std::size_t next_index{used_images.size()}; + const Image entry{offset, next_index, type}; + return *used_images.emplace(entry).first; +} + +} // namespace VideoCommon::Shader diff --git a/src/video_core/shader/node.h b/src/video_core/shader/node.h index 3cfb911bb..8b8d83ae7 100644 --- a/src/video_core/shader/node.h +++ b/src/video_core/shader/node.h @@ -146,6 +146,8 @@ enum class OperationCode { TextureQueryLod, /// (MetaTexture, float[N] coords) -> float4 TexelFetch, /// (MetaTexture, int[N], int) -> float4 + ImageStore, /// (MetaImage, float[N] coords) -> void + Branch, /// (uint branch_target) -> void PushFlowStack, /// (uint branch_target) -> void PopFlowStack, /// () -> void @@ -263,6 +265,39 @@ private: bool is_bindless{}; ///< Whether this sampler belongs to a bindless texture or not. }; +class Image { +public: + explicit Image(std::size_t offset, std::size_t index, Tegra::Shader::ImageType type) + : offset{offset}, index{index}, type{type}, is_bindless{false} {} + + std::size_t GetOffset() const { + return offset; + } + + std::size_t GetIndex() const { + return index; + } + + Tegra::Shader::ImageType GetType() const { + return type; + } + + bool IsBindless() const { + return is_bindless; + } + + bool operator<(const Image& rhs) const { + return std::tie(offset, index, type, is_bindless) < + std::tie(rhs.offset, rhs.index, rhs.type, rhs.is_bindless); + } + +private: + std::size_t offset{}; + std::size_t index{}; + Tegra::Shader::ImageType type{}; + bool is_bindless{}; +}; + struct GlobalMemoryBase { u32 cbuf_index{}; u32 cbuf_offset{}; @@ -289,8 +324,13 @@ struct MetaTexture { u32 element{}; }; +struct MetaImage { + const Image& image; + std::vector values; +}; + /// Parameters that modify an operation but are not part of any particular operand -using Meta = std::variant; +using Meta = std::variant; /// Holds any kind of operation that can be done in the IR class OperationNode final { diff --git a/src/video_core/shader/shader_ir.h b/src/video_core/shader/shader_ir.h index 1b84c0672..c7f264371 100644 --- a/src/video_core/shader/shader_ir.h +++ b/src/video_core/shader/shader_ir.h @@ -104,6 +104,10 @@ public: return used_samplers; } + const std::set& GetImages() const { + return used_images; + } + const std::array& GetClipDistances() const { return used_clip_distances; @@ -154,6 +158,7 @@ private: u32 DecodeConversion(NodeBlock& bb, u32 pc); u32 DecodeMemory(NodeBlock& bb, u32 pc); u32 DecodeTexture(NodeBlock& bb, u32 pc); + u32 DecodeImage(NodeBlock& bb, u32 pc); u32 DecodeFloatSetPredicate(NodeBlock& bb, u32 pc); u32 DecodeIntegerSetPredicate(NodeBlock& bb, u32 pc); u32 DecodeHalfSetPredicate(NodeBlock& bb, u32 pc); @@ -254,6 +259,9 @@ private: Tegra::Shader::TextureType type, bool is_array, bool is_shadow); + /// Accesses an image. + const Image& GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type); + /// Extracts a sequence of bits from a node Node BitfieldExtract(Node value, u32 offset, u32 bits); @@ -329,6 +337,7 @@ private: std::set used_output_attributes; std::map used_cbufs; std::set used_samplers; + std::set used_images; std::array used_clip_distances{}; std::map used_global_memory; bool uses_physical_attributes{}; // Shader uses AL2P or physical attribute read/writes -- cgit v1.2.3