b581b9576a
Mandate creationg of pipeline-specific data by pipeline handlers. This allows simplifying the API by passing the pipeline-specific data to the registerCamera() method and removing the separate setCameraData() method. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
113 lines
2.8 KiB
C++
113 lines
2.8 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2018, Google Inc.
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*
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* pipeline_handler.h - Pipeline handler infrastructure
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*/
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#ifndef __LIBCAMERA_PIPELINE_HANDLER_H__
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#define __LIBCAMERA_PIPELINE_HANDLER_H__
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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namespace libcamera {
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class BufferPool;
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class Camera;
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class CameraManager;
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class DeviceEnumerator;
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class MediaDevice;
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class PipelineHandler;
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class Request;
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class Stream;
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class StreamConfiguration;
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class CameraData
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{
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public:
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explicit CameraData(PipelineHandler *pipe)
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: pipe_(pipe)
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{
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}
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virtual ~CameraData() {}
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Camera *camera_;
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PipelineHandler *pipe_;
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private:
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CameraData(const CameraData &) = delete;
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CameraData &operator=(const CameraData &) = delete;
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};
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class PipelineHandler : public std::enable_shared_from_this<PipelineHandler>
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{
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public:
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PipelineHandler(CameraManager *manager);
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virtual ~PipelineHandler();
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virtual bool match(DeviceEnumerator *enumerator) = 0;
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virtual std::map<Stream *, StreamConfiguration>
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streamConfiguration(Camera *camera, std::set<Stream *> &streams) = 0;
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virtual int configureStreams(Camera *camera,
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std::map<Stream *, StreamConfiguration> &config) = 0;
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virtual int allocateBuffers(Camera *camera, Stream *stream) = 0;
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virtual int freeBuffers(Camera *camera, Stream *stream) = 0;
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virtual int start(Camera *camera) = 0;
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virtual void stop(Camera *camera) = 0;
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virtual int queueRequest(Camera *camera, Request *request) = 0;
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protected:
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void registerCamera(std::shared_ptr<Camera> camera,
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std::unique_ptr<CameraData> data);
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void hotplugMediaDevice(MediaDevice *media);
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CameraData *cameraData(const Camera *camera);
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CameraManager *manager_;
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private:
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void mediaDeviceDisconnected(MediaDevice *media);
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virtual void disconnect();
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std::vector<std::weak_ptr<Camera>> cameras_;
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std::map<const Camera *, std::unique_ptr<CameraData>> cameraData_;
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};
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class PipelineHandlerFactory
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{
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public:
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PipelineHandlerFactory(const char *name);
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virtual ~PipelineHandlerFactory() { };
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virtual std::shared_ptr<PipelineHandler> create(CameraManager *manager) = 0;
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const std::string &name() const { return name_; }
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static void registerType(PipelineHandlerFactory *factory);
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static std::vector<PipelineHandlerFactory *> &factories();
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private:
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std::string name_;
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};
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#define REGISTER_PIPELINE_HANDLER(handler) \
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class handler##Factory final : public PipelineHandlerFactory \
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{ \
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public: \
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handler##Factory() : PipelineHandlerFactory(#handler) {} \
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std::shared_ptr<PipelineHandler> create(CameraManager *manager) \
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{ \
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return std::make_shared<handler>(manager); \
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} \
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}; \
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static handler##Factory global_##handler##Factory;
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_PIPELINE_HANDLER_H__ */
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