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// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef VK_PIPELINE_CACHE_HPP_
#define VK_PIPELINE_CACHE_HPP_
#include "VkObject.hpp"
#include "VkSpecializationInfo.hpp"
#include "Pipeline/SpirvBinary.hpp"
#include "marl/mutex.h"
#include "marl/tsa.h"
#include <cstring>
#include <functional>
#include <map>
#include <memory>
#include <string>
#include <vector>
namespace sw {
class ComputeProgram;
class SpirvShader;
} // namespace sw
namespace vk {
class PipelineLayout;
class RenderPass;
class PipelineCache : public Object<PipelineCache, VkPipelineCache>
{
public:
static constexpr VkSystemAllocationScope GetAllocationScope() { return VK_SYSTEM_ALLOCATION_SCOPE_CACHE; }
PipelineCache(const VkPipelineCacheCreateInfo *pCreateInfo, void *mem);
virtual ~PipelineCache();
void destroy(const VkAllocationCallbacks *pAllocator);
static size_t ComputeRequiredAllocationSize(const VkPipelineCacheCreateInfo *pCreateInfo);
VkResult getData(size_t *pDataSize, void *pData);
VkResult merge(uint32_t srcCacheCount, const VkPipelineCache *pSrcCaches);
struct SpirvBinaryKey
{
SpirvBinaryKey(const sw::SpirvBinary &spirv,
const VkSpecializationInfo *specializationInfo,
bool robustBufferAccess,
bool optimize);
bool operator<(const SpirvBinaryKey &other) const;
const sw::SpirvBinary &getBinary() const { return spirv; }
const VkSpecializationInfo *getSpecializationInfo() const { return specializationInfo.get(); }
bool getOptimization() const { return optimize; }
private:
const sw::SpirvBinary spirv;
const vk::SpecializationInfo specializationInfo;
const bool robustBufferAccess;
const bool optimize;
};
// contains() queries whether the cache contains a shader with the given key.
inline bool contains(const PipelineCache::SpirvBinaryKey &key);
// getOrOptimizeSpirv() queries the cache for a shader with the given key.
// If one is found, it is returned, otherwise create() is called, the
// returned SPIR-V binary is added to the cache, and it is returned.
// CreateOnCacheMiss must be a function of the signature:
// sw::ShaderBinary()
template<typename CreateOnCacheMiss, typename CacheHit>
inline sw::SpirvBinary getOrOptimizeSpirv(const PipelineCache::SpirvBinaryKey &key, CreateOnCacheMiss &&create, CacheHit &&cacheHit);
struct ComputeProgramKey
{
ComputeProgramKey(uint64_t shaderIdentifier, uint32_t pipelineLayoutIdentifier);
bool operator<(const ComputeProgramKey &other) const;
private:
const uint64_t shaderIdentifier;
const uint32_t pipelineLayoutIdentifier;
};
// getOrCreateComputeProgram() queries the cache for a compute program with
// the given key.
// If one is found, it is returned, otherwise create() is called, the
// returned program is added to the cache, and it is returned.
// Function must be a function of the signature:
// std::shared_ptr<sw::ComputeProgram>()
template<typename Function>
inline std::shared_ptr<sw::ComputeProgram> getOrCreateComputeProgram(const PipelineCache::ComputeProgramKey &key, Function &&create);
private:
struct CacheHeader
{
uint32_t headerLength;
uint32_t headerVersion;
uint32_t vendorID;
uint32_t deviceID;
uint8_t pipelineCacheUUID[VK_UUID_SIZE];
};
size_t dataSize = 0;
uint8_t *data = nullptr;
marl::mutex spirvShadersMutex;
std::map<SpirvBinaryKey, sw::SpirvBinary> spirvShaders GUARDED_BY(spirvShadersMutex);
marl::mutex computeProgramsMutex;
std::map<ComputeProgramKey, std::shared_ptr<sw::ComputeProgram>> computePrograms GUARDED_BY(computeProgramsMutex);
};
static inline PipelineCache *Cast(VkPipelineCache object)
{
return PipelineCache::Cast(object);
}
template<typename Function>
std::shared_ptr<sw::ComputeProgram> PipelineCache::getOrCreateComputeProgram(const PipelineCache::ComputeProgramKey &key, Function &&create)
{
marl::lock lock(computeProgramsMutex);
auto it = computePrograms.find(key);
if(it != computePrograms.end())
{
return it->second;
}
auto created = create();
computePrograms.emplace(key, created);
return created;
}
inline bool PipelineCache::contains(const PipelineCache::SpirvBinaryKey &key)
{
marl::lock lock(spirvShadersMutex);
return spirvShaders.find(key) != spirvShaders.end();
}
template<typename CreateOnCacheMiss, typename CacheHit>
sw::SpirvBinary PipelineCache::getOrOptimizeSpirv(const PipelineCache::SpirvBinaryKey &key, CreateOnCacheMiss &&create, CacheHit &&cacheHit)
{
marl::lock lock(spirvShadersMutex);
auto it = spirvShaders.find(key);
if(it != spirvShaders.end())
{
cacheHit();
return it->second;
}
sw::SpirvBinary outShader = create();
spirvShaders.emplace(key, outShader);
return outShader;
}
} // namespace vk
#endif // VK_PIPELINE_CACHE_HPP_