| // Copyright (c) 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "gpu/command_buffer/service/service_transfer_cache.h" |
| |
| #include "base/sys_info.h" |
| |
| namespace gpu { |
| namespace { |
| size_t CacheSizeLimit() { |
| if (base::SysInfo::IsLowEndDevice()) { |
| return 4 * 1024 * 1024; |
| } else { |
| return 128 * 1024 * 1024; |
| } |
| } |
| |
| } // namespace |
| |
| ServiceTransferCache::CacheEntryInternal::CacheEntryInternal( |
| ServiceDiscardableHandle handle, |
| std::unique_ptr<cc::ServiceTransferCacheEntry> entry) |
| : handle(handle), entry(std::move(entry)) {} |
| |
| ServiceTransferCache::CacheEntryInternal::~CacheEntryInternal() = default; |
| |
| ServiceTransferCache::CacheEntryInternal::CacheEntryInternal( |
| CacheEntryInternal&& other) = default; |
| |
| ServiceTransferCache::CacheEntryInternal& |
| ServiceTransferCache::CacheEntryInternal::operator=( |
| CacheEntryInternal&& other) = default; |
| |
| ServiceTransferCache::ServiceTransferCache() |
| : entries_(EntryCache::NO_AUTO_EVICT), |
| cache_size_limit_(CacheSizeLimit()) {} |
| |
| ServiceTransferCache::~ServiceTransferCache() = default; |
| |
| bool ServiceTransferCache::CreateLockedEntry( |
| cc::TransferCacheEntryType entry_type, |
| uint32_t entry_id, |
| ServiceDiscardableHandle handle, |
| GrContext* context, |
| base::span<uint8_t> data) { |
| auto key = std::make_pair(entry_type, entry_id); |
| auto found = entries_.Peek(key); |
| if (found != entries_.end()) { |
| return false; |
| } |
| |
| std::unique_ptr<cc::ServiceTransferCacheEntry> entry = |
| cc::ServiceTransferCacheEntry::Create(entry_type); |
| if (!entry) |
| return false; |
| |
| entry->Deserialize(context, data); |
| total_size_ += entry->CachedSize(); |
| entries_.Put(key, CacheEntryInternal(handle, std::move(entry))); |
| EnforceLimits(); |
| return true; |
| } |
| |
| bool ServiceTransferCache::UnlockEntry(cc::TransferCacheEntryType entry_type, |
| uint32_t entry_id) { |
| auto key = std::make_pair(entry_type, entry_id); |
| auto found = entries_.Peek(key); |
| if (found == entries_.end()) |
| return false; |
| |
| found->second.handle.Unlock(); |
| return true; |
| } |
| |
| bool ServiceTransferCache::DeleteEntry(cc::TransferCacheEntryType entry_type, |
| uint32_t entry_id) { |
| auto key = std::make_pair(entry_type, entry_id); |
| auto found = entries_.Peek(key); |
| if (found == entries_.end()) |
| return false; |
| |
| found->second.handle.ForceDelete(); |
| total_size_ -= found->second.entry->CachedSize(); |
| entries_.Erase(found); |
| return true; |
| } |
| |
| cc::ServiceTransferCacheEntry* ServiceTransferCache::GetEntry( |
| cc::TransferCacheEntryType entry_type, |
| uint32_t entry_id) { |
| auto key = std::make_pair(entry_type, entry_id); |
| auto found = entries_.Get(key); |
| if (found == entries_.end()) |
| return nullptr; |
| return found->second.entry.get(); |
| } |
| |
| void ServiceTransferCache::EnforceLimits() { |
| for (auto it = entries_.rbegin(); it != entries_.rend();) { |
| if (total_size_ <= cache_size_limit_) { |
| return; |
| } |
| if (!it->second.handle.Delete()) { |
| ++it; |
| continue; |
| } |
| |
| total_size_ -= it->second.entry->CachedSize(); |
| it = entries_.Erase(it); |
| } |
| } |
| |
| } // namespace gpu |