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// Copyright 2019 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.
#include "VkPipelineCache.hpp"
#include <cstring>
namespace vk {
PipelineCache::SpirvShaderKey::SpirvShaderKey(const VkShaderStageFlagBits pipelineStage,
const std::string &entryPointName,
const std::vector<uint32_t> &insns,
const vk::RenderPass *renderPass,
const uint32_t subpassIndex,
const vk::SpecializationInfo &specializationInfo)
: pipelineStage(pipelineStage)
, entryPointName(entryPointName)
, insns(insns)
, renderPass(renderPass)
, subpassIndex(subpassIndex)
, specializationInfo(specializationInfo)
{
}
bool PipelineCache::SpirvShaderKey::operator<(const SpirvShaderKey &other) const
{
if(pipelineStage != other.pipelineStage)
{
return pipelineStage < other.pipelineStage;
}
if(renderPass != other.renderPass)
{
return renderPass < other.renderPass;
}
if(subpassIndex != other.subpassIndex)
{
return subpassIndex < other.subpassIndex;
}
if(insns.size() != other.insns.size())
{
return insns.size() < other.insns.size();
}
if(entryPointName.size() != other.entryPointName.size())
{
return entryPointName.size() < other.entryPointName.size();
}
int cmp = memcmp(entryPointName.c_str(), other.entryPointName.c_str(), entryPointName.size());
if(cmp != 0)
{
return cmp < 0;
}
cmp = memcmp(insns.data(), other.insns.data(), insns.size() * sizeof(uint32_t));
if(cmp != 0)
{
return cmp < 0;
}
return (specializationInfo < other.specializationInfo);
}
PipelineCache::PipelineCache(const VkPipelineCacheCreateInfo *pCreateInfo, void *mem)
: dataSize(ComputeRequiredAllocationSize(pCreateInfo))
, data(reinterpret_cast<uint8_t *>(mem))
{
CacheHeader *header = reinterpret_cast<CacheHeader *>(mem);
header->headerLength = sizeof(CacheHeader);
header->headerVersion = VK_PIPELINE_CACHE_HEADER_VERSION_ONE;
header->vendorID = VENDOR_ID;
header->deviceID = DEVICE_ID;
memcpy(header->pipelineCacheUUID, SWIFTSHADER_UUID, VK_UUID_SIZE);
if(pCreateInfo->pInitialData && (pCreateInfo->initialDataSize > 0))
{
memcpy(data + sizeof(CacheHeader), pCreateInfo->pInitialData, pCreateInfo->initialDataSize);
}
}
PipelineCache::~PipelineCache()
{
spirvShaders.clear();
computePrograms.clear();
}
void PipelineCache::destroy(const VkAllocationCallbacks *pAllocator)
{
vk::deallocate(data, pAllocator);
}
size_t PipelineCache::ComputeRequiredAllocationSize(const VkPipelineCacheCreateInfo *pCreateInfo)
{
return pCreateInfo->initialDataSize + sizeof(CacheHeader);
}
VkResult PipelineCache::getData(size_t *pDataSize, void *pData)
{
if(!pData)
{
*pDataSize = dataSize;
return VK_SUCCESS;
}
if(*pDataSize != dataSize)
{
*pDataSize = 0;
return VK_INCOMPLETE;
}
if(*pDataSize > 0)
{
memcpy(pData, data, *pDataSize);
}
return VK_SUCCESS;
}
VkResult PipelineCache::merge(uint32_t srcCacheCount, const VkPipelineCache *pSrcCaches)
{
for(uint32_t i = 0; i < srcCacheCount; i++)
{
PipelineCache *srcCache = Cast(pSrcCaches[i]);
{
marl::lock thisLock(spirvShadersMutex);
marl::lock srcLock(srcCache->spirvShadersMutex);
spirvShaders.insert(srcCache->spirvShaders.begin(), srcCache->spirvShaders.end());
}
{
marl::lock thisLock(computeProgramsMutex);
marl::lock srcLock(srcCache->computeProgramsMutex);
computePrograms.insert(srcCache->computePrograms.begin(), srcCache->computePrograms.end());
}
}
return VK_SUCCESS;
}
} // namespace vk