/*
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* DrmBuffer.h - DRM Buffer Implementation
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*
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* Copyright (c) 2021 Rockchip Corporation
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*
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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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*/
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#ifndef _DRM_BUFFER_H_
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#define _DRM_BUFFER_H_
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#include <drm/drm_fourcc.h>
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#include <sys/types.h>
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#include <memory>
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#include <vector>
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#include "buffer_pool.h"
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extern "C" {
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struct DrmDumbObject;
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};
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namespace XCam {
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class DmaBuffer;
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class DrmDevice;
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class DrmBufferProxy;
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class DrmBufferPool;
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class DrmBuffer : public BufferData {
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public:
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DrmBuffer() = delete;
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DrmBuffer(const DrmBuffer&) = delete;
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DrmBuffer& operator=(const DrmBuffer&) = delete;
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DrmBuffer(const std::shared_ptr<DrmDevice>& dev, std::unique_ptr<DrmDumbObject> dumb_object);
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virtual ~DrmBuffer();
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virtual uint8_t* map();
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virtual bool unmap();
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virtual int get_fd();
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size_t getSize();
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// default single plane
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uint8_t* map(unsigned int plane);
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bool unmap(unsigned int plane);
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int getFd(unsigned int plane);
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size_t getSize(unsigned int plane);
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int numPlanes();
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DrmDumbObject* get_bo();
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private:
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std::weak_ptr<DrmDevice> drm_device_;
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std::unique_ptr<DrmDumbObject> dumb_object_;
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std::vector<std::unique_ptr<DmaBuffer>> dma_bufs_;
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};
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class DrmBufferPool : public BufferPool {
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friend class DrmBuffer;
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public:
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explicit DrmBufferPool(std::shared_ptr<DrmDevice> device);
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virtual ~DrmBufferPool() = default;
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DrmBufferPool(const DrmBufferPool&) = delete;
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DrmBufferPool& operator=(const DrmBufferPool&) = delete;
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protected:
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virtual bool fixate_video_info (VideoBufferInfo &info);
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virtual SmartPtr<BufferData> allocate_data(const VideoBufferInfo& buffer_info);
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virtual SmartPtr<BufferProxy> create_buffer_from_data(SmartPtr<BufferData>& data);
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private:
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std::shared_ptr<DrmDevice> drm_device_;
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};
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class DrmBufferProxy : public virtual BufferProxy {
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friend class DrmBufferPool;
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friend class DrmDevice;
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public:
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explicit DrmBufferProxy(const VideoBufferInfo& info, const SmartPtr<DrmBuffer>& data);
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virtual ~DrmBufferProxy() = default;
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DrmDumbObject* get_bo();
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const int GetFd();
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};
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}; // namespace XCam
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#endif // _DRM_BUFFER_H_
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