1 files changed, 183 insertions, 0 deletions
diff --git a/src/video_core/shader_environment.h b/src/video_core/shader_environment.h
new file mode 100644
index 000000000..2079979db
--- /dev/null
+++ b/src/video_core/shader_environment.h
@@ -0,0 +1,183 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <atomic>
+#include <filesystem>
+#include <iosfwd>
+#include <limits>
+#include <memory>
+#include <optional>
+#include <span>
+#include <type_traits>
+#include <unordered_map>
+#include <vector>
+
+#include "common/common_types.h"
+#include "common/unique_function.h"
+#include "shader_recompiler/environment.h"
+#include "video_core/engines/kepler_compute.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/textures/texture.h"
+
+namespace Tegra {
+class Memorymanager;
+}
+
+namespace VideoCommon {
+
+class GenericEnvironment : public Shader::Environment {
+public:
+    explicit GenericEnvironment() = default;
+    explicit GenericEnvironment(Tegra::MemoryManager& gpu_memory_, GPUVAddr program_base_,
+                                u32 start_address_);
+
+    ~GenericEnvironment() override;
+
+    [[nodiscard]] u32 TextureBoundBuffer() const final;
+
+    [[nodiscard]] u32 LocalMemorySize() const final;
+
+    [[nodiscard]] u32 SharedMemorySize() const final;
+
+    [[nodiscard]] std::array<u32, 3> WorkgroupSize() const final;
+
+    [[nodiscard]] u64 ReadInstruction(u32 address) final;
+
+    [[nodiscard]] std::optional<u64> Analyze();
+
+    void SetCachedSize(size_t size_bytes);
+
+    [[nodiscard]] size_t CachedSize() const noexcept;
+
+    [[nodiscard]] size_t ReadSize() const noexcept;
+
+    [[nodiscard]] bool CanBeSerialized() const noexcept;
+
+    [[nodiscard]] u64 CalculateHash() const;
+
+    void Serialize(std::ofstream& file) const;
+
+protected:
+    std::optional<u64> TryFindSize();
+
+    Shader::TextureType ReadTextureTypeImpl(GPUVAddr tic_addr, u32 tic_limit, bool via_header_index,
+                                            u32 raw);
+
+    Tegra::MemoryManager* gpu_memory{};
+    GPUVAddr program_base{};
+
+    std::vector<u64> code;
+    std::unordered_map<u32, Shader::TextureType> texture_types;
+    std::unordered_map<u64, u32> cbuf_values;
+
+    u32 local_memory_size{};
+    u32 texture_bound{};
+    u32 shared_memory_size{};
+    std::array<u32, 3> workgroup_size{};
+
+    u32 read_lowest = std::numeric_limits<u32>::max();
+    u32 read_highest = 0;
+
+    u32 cached_lowest = std::numeric_limits<u32>::max();
+    u32 cached_highest = 0;
+
+    bool has_unbound_instructions = false;
+};
+
+class GraphicsEnvironment final : public GenericEnvironment {
+public:
+    explicit GraphicsEnvironment() = default;
+    explicit GraphicsEnvironment(Tegra::Engines::Maxwell3D& maxwell3d_,
+                                 Tegra::MemoryManager& gpu_memory_,
+                                 Tegra::Engines::Maxwell3D::Regs::ShaderProgram program,
+                                 GPUVAddr program_base_, u32 start_address_);
+
+    ~GraphicsEnvironment() override = default;
+
+    u32 ReadCbufValue(u32 cbuf_index, u32 cbuf_offset) override;
+
+    Shader::TextureType ReadTextureType(u32 handle) override;
+
+private:
+    Tegra::Engines::Maxwell3D* maxwell3d{};
+    size_t stage_index{};
+};
+
+class ComputeEnvironment final : public GenericEnvironment {
+public:
+    explicit ComputeEnvironment() = default;
+    explicit ComputeEnvironment(Tegra::Engines::KeplerCompute& kepler_compute_,
+                                Tegra::MemoryManager& gpu_memory_, GPUVAddr program_base_,
+                                u32 start_address_);
+
+    ~ComputeEnvironment() override = default;
+
+    u32 ReadCbufValue(u32 cbuf_index, u32 cbuf_offset) override;
+
+    Shader::TextureType ReadTextureType(u32 handle) override;
+
+private:
+    Tegra::Engines::KeplerCompute* kepler_compute{};
+};
+
+class FileEnvironment final : public Shader::Environment {
+public:
+    FileEnvironment() = default;
+    ~FileEnvironment() override = default;
+
+    FileEnvironment& operator=(FileEnvironment&&) noexcept = default;
+    FileEnvironment(FileEnvironment&&) noexcept = default;
+
+    FileEnvironment& operator=(const FileEnvironment&) = delete;
+    FileEnvironment(const FileEnvironment&) = delete;
+
+    void Deserialize(std::ifstream& file);
+
+    [[nodiscard]] u64 ReadInstruction(u32 address) override;
+
+    [[nodiscard]] u32 ReadCbufValue(u32 cbuf_index, u32 cbuf_offset) override;
+
+    [[nodiscard]] Shader::TextureType ReadTextureType(u32 handle) override;
+
+    [[nodiscard]] u32 LocalMemorySize() const override;
+
+    [[nodiscard]] u32 SharedMemorySize() const override;
+
+    [[nodiscard]] u32 TextureBoundBuffer() const override;
+
+    [[nodiscard]] std::array<u32, 3> WorkgroupSize() const override;
+
+private:
+    std::unique_ptr<u64[]> code;
+    std::unordered_map<u32, Shader::TextureType> texture_types;
+    std::unordered_map<u64, u32> cbuf_values;
+    std::array<u32, 3> workgroup_size{};
+    u32 local_memory_size{};
+    u32 shared_memory_size{};
+    u32 texture_bound{};
+    u32 read_lowest{};
+    u32 read_highest{};
+};
+
+void SerializePipeline(std::span<const char> key, std::span<const GenericEnvironment* const> envs,
+                       const std::filesystem::path& filename, u32 cache_version);
+
+template <typename Key, typename Envs>
+void SerializePipeline(const Key& key, const Envs& envs, const std::filesystem::path& filename,
+                       u32 cache_version) {
+    static_assert(std::is_trivially_copyable_v<Key>);
+    static_assert(std::has_unique_object_representations_v<Key>);
+    SerializePipeline(std::span(reinterpret_cast<const char*>(&key), sizeof(key)),
+                      std::span(envs.data(), envs.size()), filename, cache_version);
+}
+
+void LoadPipelines(
+    std::stop_token stop_loading, const std::filesystem::path& filename, u32 expected_cache_version,
+    Common::UniqueFunction<void, std::ifstream&, FileEnvironment> load_compute,
+    Common::UniqueFunction<void, std::ifstream&, std::vector<FileEnvironment>> load_graphics);
+
+} // namespace VideoCommon