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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <atomic>
#include <bitset>
#include <memory>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include <glad/glad.h>
#include "common/common_types.h"
#include "video_core/engines/shader_type.h"
#include "video_core/rasterizer_cache.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_shader_decompiler.h"
#include "video_core/renderer_opengl/gl_shader_disk_cache.h"
#include "video_core/shader/const_buffer_locker.h"
#include "video_core/shader/shader_ir.h"
namespace Core {
class System;
}
namespace Core::Frontend {
class EmuWindow;
}
namespace OpenGL {
class CachedShader;
class Device;
class RasterizerOpenGL;
struct UnspecializedShader;
using Shader = std::shared_ptr<CachedShader>;
using CachedProgram = std::shared_ptr<OGLProgram>;
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
using PrecompiledPrograms = std::unordered_map<ShaderDiskCacheUsage, CachedProgram>;
using PrecompiledVariants = std::vector<PrecompiledPrograms::iterator>;
struct UnspecializedShader {
GLShader::ShaderEntries entries;
Tegra::Engines::ShaderType type;
ProgramCode code;
ProgramCode code_b;
};
struct ShaderParameters {
Core::System& system;
ShaderDiskCacheOpenGL& disk_cache;
const PrecompiledVariants* precompiled_variants;
const Device& device;
VAddr cpu_addr;
u8* host_ptr;
u64 unique_identifier;
};
class CachedShader final : public RasterizerCacheObject {
public:
static Shader CreateStageFromMemory(const ShaderParameters& params,
Maxwell::ShaderProgram program_type,
ProgramCode program_code, ProgramCode program_code_b);
static Shader CreateKernelFromMemory(const ShaderParameters& params, ProgramCode code);
static Shader CreateFromCache(const ShaderParameters& params,
const UnspecializedShader& unspecialized);
VAddr GetCpuAddr() const override {
return cpu_addr;
}
std::size_t GetSizeInBytes() const override {
return code.size() * sizeof(u64);
}
/// Gets the shader entries for the shader
const GLShader::ShaderEntries& GetShaderEntries() const {
return entries;
}
/// Gets the GL program handle for the shader
GLuint GetHandle(const ProgramVariant& variant);
private:
struct LockerVariant {
std::unique_ptr<VideoCommon::Shader::ConstBufferLocker> locker;
std::unordered_map<ProgramVariant, CachedProgram> programs;
};
explicit CachedShader(const ShaderParameters& params, Tegra::Engines::ShaderType shader_type,
GLShader::ShaderEntries entries, ProgramCode program_code,
ProgramCode program_code_b);
bool EnsureValidLockerVariant();
ShaderDiskCacheUsage GetUsage(const ProgramVariant& variant,
const VideoCommon::Shader::ConstBufferLocker& locker) const;
Core::System& system;
ShaderDiskCacheOpenGL& disk_cache;
const Device& device;
VAddr cpu_addr{};
u64 unique_identifier{};
Tegra::Engines::ShaderType shader_type{};
GLShader::ShaderEntries entries;
ProgramCode code;
ProgramCode code_b;
LockerVariant* curr_locker_variant = nullptr;
std::vector<std::unique_ptr<LockerVariant>> locker_variants;
};
class ShaderCacheOpenGL final : public RasterizerCache<Shader> {
public:
explicit ShaderCacheOpenGL(RasterizerOpenGL& rasterizer, Core::System& system,
Core::Frontend::EmuWindow& emu_window, const Device& device);
/// Loads disk cache for the current game
void LoadDiskCache(const std::atomic_bool& stop_loading,
const VideoCore::DiskResourceLoadCallback& callback);
/// Gets the current specified shader stage program
Shader GetStageProgram(Maxwell::ShaderProgram program);
/// Gets a compute kernel in the passed address
Shader GetComputeKernel(GPUVAddr code_addr);
protected:
// We do not have to flush this cache as things in it are never modified by us.
void FlushObjectInner(const Shader& object) override {}
private:
bool GenerateUnspecializedShaders(const std::atomic_bool& stop_loading,
const VideoCore::DiskResourceLoadCallback& callback,
const std::vector<ShaderDiskCacheRaw>& raws);
CachedProgram GeneratePrecompiledProgram(const ShaderDiskCacheDump& dump,
const std::unordered_set<GLenum>& supported_formats);
const PrecompiledVariants* GetPrecompiledVariants(u64 unique_identifier) const;
Core::System& system;
Core::Frontend::EmuWindow& emu_window;
const Device& device;
ShaderDiskCacheOpenGL disk_cache;
PrecompiledPrograms precompiled_programs;
std::unordered_map<u64, PrecompiledVariants> precompiled_variants;
std::unordered_map<u64, UnspecializedShader> unspecialized_shaders;
std::array<Shader, Maxwell::MaxShaderProgram> last_shaders;
};
} // namespace OpenGL
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