1 /* 2 * Copyright (c) 2021 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 HDI_BACKEND_HDI_FRAMEBUFFER_SURFACE_H 17 #define HDI_BACKEND_HDI_FRAMEBUFFER_SURFACE_H 18 19 #include <condition_variable> 20 #include <queue> 21 #include <refbase.h> 22 #include <surface.h> 23 #include <sync_fence.h> 24 #include "surface_buffer.h" 25 26 namespace OHOS { 27 namespace Rosen { 28 struct FrameBufferEntry { FrameBufferEntryFrameBufferEntry29 FrameBufferEntry(sptr<SurfaceBuffer> buf, sptr<SyncFence> fence, int64_t timeStamp, const Rect& damage) 30 : buffer(std::move(buf)), acquireFence(std::move(fence)), acquireTime(timeStamp), damageRect(damage) 31 { 32 } 33 ~FrameBufferEntry() noexcept = default; 34 35 sptr<SurfaceBuffer> buffer; 36 sptr<SyncFence> acquireFence; 37 int64_t acquireTime = 0; 38 Rect damageRect = {0}; 39 }; 40 41 class HdiFramebufferSurface : public IBufferConsumerListener { 42 public: 43 static sptr<HdiFramebufferSurface> CreateFramebufferSurface(); 44 sptr<OHOS::Surface> GetSurface(); 45 std::unique_ptr<FrameBufferEntry> GetFramebuffer(); 46 int32_t ReleaseFramebuffer( 47 sptr<SurfaceBuffer> &buffer, const sptr<SyncFence> &releaseFence); 48 49 void Dump(std::string &result); 50 51 private: 52 mutable std::mutex mutex_; 53 std::condition_variable bufferCond_; 54 sptr<OHOS::Surface> consumerSurface_ = nullptr; 55 sptr<OHOS::Surface> producerSurface_ = nullptr; 56 std::queue<std::unique_ptr<FrameBufferEntry>> availableBuffers_; 57 58 static constexpr uint32_t MAX_BUFFER_SIZE = 3; 59 60 HdiFramebufferSurface(); 61 virtual ~HdiFramebufferSurface() noexcept; 62 63 void OnBufferAvailable() override; 64 OHOS::SurfaceError SetBufferQueueSize(uint32_t bufferSize); 65 OHOS::SurfaceError CreateSurface(sptr<HdiFramebufferSurface> &fbSurface); 66 }; 67 } // namespace Rosen 68 } // namespace OHOS 69 70 #endif // HDI_BACKEND_HDI_FRAMEBUFFER_SURFACE_H 71