1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef OHOS_HDI_DISPLAY_V1_0_LAYER_CACHE_H 17 #define OHOS_HDI_DISPLAY_V1_0_LAYER_CACHE_H 18 19 #include <functional> 20 #include <memory> 21 #include <unordered_map> 22 #include "base/native_buffer.h" 23 #include "cache_manager.h" 24 #include "nocopyable.h" 25 #include "v1_2/mapper_stub.h" 26 #include "v1_1/imetadata.h" 27 28 namespace OHOS { 29 namespace HDI { 30 namespace Display { 31 namespace Composer { 32 using namespace OHOS::HDI::Base; 33 class LayerCache : public NoCopyable { 34 public: 35 ~LayerCache(); 36 static LayerCache* Create(uint32_t id); 37 int32_t SetLayerBuffer(BufferHandle*& buffer, uint32_t seqNo, bool &needFreeBuffer, 38 const std::vector<uint32_t>& deletingList, std::function<int32_t (const BufferHandle&)> realFunc); 39 int32_t SetBufferCacheMaxCount(uint32_t cacheCount); 40 int32_t ResetLayerBuffer(); 41 void Dump() const; 42 static void NativeBufferInit(sptr<NativeBuffer>& buffer); 43 static void NativeBufferCleanUp(sptr<NativeBuffer>& buffer); 44 private: 45 explicit LayerCache(uint32_t id); 46 int32_t Init(); 47 static sptr<Buffer::V1_2::IMapper> GetMapperService(); 48 static sptr<Buffer::V1_1::IMetadata> GetMetaService(); 49 static int32_t Mmap(sptr<NativeBuffer>& buffer); 50 static int32_t Unmap(sptr<NativeBuffer>& buffer); 51 static int32_t FreeMem(sptr<NativeBuffer>& buffer); 52 static int32_t RegisterBuffer(sptr<NativeBuffer>& buffer); 53 uint32_t layerId_; 54 std::shared_ptr<CacheManager<uint32_t, NativeBuffer>> bufferCaches_; 55 }; 56 } // namespace Composer 57 } // namespace Display 58 } // namespace HDI 59 } // namespace OHOS 60 #endif // OHOS_HDI_DISPLAY_V1_0_LAYER_CACHE_H 61