mirror of
https://github.com/openharmony/drivers_peripheral.git
synced 2026-08-25 02:23:31 -04:00
lujianhui
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef HOS_CAMERA_BUFFER_POOL_H
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#define HOS_CAMERA_BUFFER_POOL_H
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#include "buffer_allocator_factory.h"
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#include "ibuffer.h"
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#include "ibuffer_pool.h"
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#include <condition_variable>
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#include <list>
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#include <memory>
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#include <mutex>
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#include <utility>
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namespace OHOS::Camera {
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class BufferPool : public IBufferPool {
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public:
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BufferPool();
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virtual ~BufferPool();
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RetCode Init(const uint32_t width,
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const uint32_t height,
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const uint64_t usage,
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const uint32_t bufferFormat,
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const uint32_t count,
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const int32_t bufferSourceType) override;
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RetCode AddBuffer(std::shared_ptr<IBuffer>& buffer) override;
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std::shared_ptr<IBuffer> AcquireBuffer(int timeout) override;
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RetCode ReturnBuffer(std::shared_ptr<IBuffer>& buffer) override;
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void EnableTracking(const int32_t id) override;
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void SetId(const int64_t id) override;
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void NotifyStop() override;
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void NotifyStart() override;
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void ClearBuffers() override;
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uint32_t GetIdleBufferCount() override;
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private:
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RetCode PrepareBuffer();
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RetCode DestroyBuffer();
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private:
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std::mutex lock_;
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std::condition_variable cv_;
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std::atomic_bool stop_ = false;
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int64_t poolId_ = -1;
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int32_t trackingId_ = -1;
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uint32_t bufferCount_ = 0;
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uint32_t bufferWidth_ = 0;
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uint32_t bufferHeight_ = 0;
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uint64_t bufferUsage_ = 0;
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uint32_t bufferFormat_ = CAMERA_FORMAT_INVALID;
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int32_t bufferSourceType_ = CAMERA_BUFFER_SOURCE_TYPE_NONE;
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std::shared_ptr<IBufferAllocator> bufferAllocator_ = nullptr;
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std::list<std::shared_ptr<IBuffer>> idleList_ = {};
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std::list<std::shared_ptr<IBuffer>> busyList_ = {};
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};
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} // namespace OHOS::Camera
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#endif
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