mirror of https://github.com/PCSX2/pcsx2.git
119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2021 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "common/Vulkan/ShaderCompiler.h"
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#include "common/Pcsx2Defs.h"
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#include "common/HashCombine.h"
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#include "common/Vulkan/Loader.h"
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#include <cstdio>
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#include <memory>
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#include <optional>
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#include <string>
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#include <string_view>
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#include <unordered_map>
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#include <vector>
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namespace Vulkan
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{
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class ShaderCache
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{
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public:
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~ShaderCache();
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static void Create(std::string_view directory, u32 version, bool debug);
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static void Destroy();
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/// Returns a handle to the pipeline cache. Set set_dirty to true if you are planning on writing to it externally.
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VkPipelineCache GetPipelineCache(bool set_dirty = true);
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/// Writes pipeline cache to file, saving all newly compiled pipelines.
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bool FlushPipelineCache();
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std::optional<ShaderCompiler::SPIRVCodeVector> GetShaderSPV(
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ShaderCompiler::Type type, std::string_view shader_code);
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VkShaderModule GetShaderModule(ShaderCompiler::Type type, std::string_view shader_code);
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VkShaderModule GetVertexShader(std::string_view shader_code);
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VkShaderModule GetGeometryShader(std::string_view shader_code);
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VkShaderModule GetFragmentShader(std::string_view shader_code);
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VkShaderModule GetComputeShader(std::string_view shader_code);
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private:
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static constexpr u32 FILE_VERSION = 2;
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struct CacheIndexKey
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{
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u64 source_hash_low;
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u64 source_hash_high;
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u32 source_length;
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ShaderCompiler::Type shader_type;
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bool operator==(const CacheIndexKey& key) const;
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bool operator!=(const CacheIndexKey& key) const;
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};
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struct CacheIndexEntryHasher
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{
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std::size_t operator()(const CacheIndexKey& e) const noexcept
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{
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std::size_t h = 0;
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HashCombine(h, e.source_hash_low, e.source_hash_high, e.source_length, e.shader_type);
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return h;
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}
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};
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struct CacheIndexData
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{
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u32 file_offset;
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u32 blob_size;
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};
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using CacheIndex = std::unordered_map<CacheIndexKey, CacheIndexData, CacheIndexEntryHasher>;
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ShaderCache();
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static std::string GetShaderCacheBaseFileName(const std::string_view& base_path, bool debug);
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static std::string GetPipelineCacheBaseFileName(const std::string_view& base_path, bool debug);
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static CacheIndexKey GetCacheKey(ShaderCompiler::Type type, const std::string_view& shader_code);
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void Open(std::string_view base_path, u32 version, bool debug);
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bool CreateNewShaderCache(const std::string& index_filename, const std::string& blob_filename);
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bool ReadExistingShaderCache(const std::string& index_filename, const std::string& blob_filename);
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void CloseShaderCache();
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bool CreateNewPipelineCache();
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bool ReadExistingPipelineCache();
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void ClosePipelineCache();
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std::optional<ShaderCompiler::SPIRVCodeVector> CompileAndAddShaderSPV(
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const CacheIndexKey& key, std::string_view shader_code);
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std::FILE* m_index_file = nullptr;
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std::FILE* m_blob_file = nullptr;
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std::string m_pipeline_cache_filename;
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CacheIndex m_index;
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VkPipelineCache m_pipeline_cache = VK_NULL_HANDLE;
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u32 m_version = 0;
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bool m_debug = false;
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bool m_pipeline_cache_dirty = false;
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};
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} // namespace Vulkan
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extern std::unique_ptr<Vulkan::ShaderCache> g_vulkan_shader_cache;
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