mirror of
https://git.libcamera.org/libcamera/libcamera.git
synced 2025-07-14 16:09:51 +03:00
a1c5450be5
With the FrameBuffer rework completed there is no reason to keep the camera prepared state around as buffer allocations are now decoupled from the camera state. Remove the camera state simplifying the API. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
134 lines
2.8 KiB
C++
134 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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* camera.h - Camera object interface
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*/
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#ifndef __LIBCAMERA_CAMERA_H__
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#define __LIBCAMERA_CAMERA_H__
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#include <memory>
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#include <set>
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#include <stdint.h>
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#include <string>
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#include <libcamera/controls.h>
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#include <libcamera/request.h>
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#include <libcamera/signal.h>
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#include <libcamera/stream.h>
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namespace libcamera {
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class FrameBuffer;
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class FrameBufferAllocator;
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class PipelineHandler;
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class Request;
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class CameraConfiguration
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{
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public:
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enum Status {
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Valid,
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Adjusted,
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Invalid,
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};
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using iterator = std::vector<StreamConfiguration>::iterator;
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using const_iterator = std::vector<StreamConfiguration>::const_iterator;
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virtual ~CameraConfiguration();
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void addConfiguration(const StreamConfiguration &cfg);
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virtual Status validate() = 0;
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StreamConfiguration &at(unsigned int index);
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const StreamConfiguration &at(unsigned int index) const;
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StreamConfiguration &operator[](unsigned int index)
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{
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return at(index);
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}
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const StreamConfiguration &operator[](unsigned int index) const
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{
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return at(index);
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}
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iterator begin();
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const_iterator begin() const;
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iterator end();
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const_iterator end() const;
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bool empty() const;
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std::size_t size() const;
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protected:
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CameraConfiguration();
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std::vector<StreamConfiguration> config_;
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};
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class Camera final : public std::enable_shared_from_this<Camera>
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{
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public:
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static std::shared_ptr<Camera> create(PipelineHandler *pipe,
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const std::string &name,
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const std::set<Stream *> &streams);
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Camera(const Camera &) = delete;
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Camera &operator=(const Camera &) = delete;
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const std::string &name() const;
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Signal<Request *, FrameBuffer *> bufferCompleted;
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Signal<Request *> requestCompleted;
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Signal<Camera *> disconnected;
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int acquire();
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int release();
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const ControlInfoMap &controls();
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const std::set<Stream *> &streams() const;
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std::unique_ptr<CameraConfiguration> generateConfiguration(const StreamRoles &roles);
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int configure(CameraConfiguration *config);
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Request *createRequest(uint64_t cookie = 0);
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int queueRequest(Request *request);
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int start();
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int stop();
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private:
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enum State {
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CameraAvailable,
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CameraAcquired,
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CameraConfigured,
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CameraRunning,
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};
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Camera(PipelineHandler *pipe, const std::string &name);
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~Camera();
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bool stateBetween(State low, State high) const;
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bool stateIs(State state) const;
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friend class PipelineHandler;
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void disconnect();
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void requestComplete(Request *request);
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std::shared_ptr<PipelineHandler> pipe_;
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std::string name_;
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std::set<Stream *> streams_;
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std::set<Stream *> activeStreams_;
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bool disconnected_;
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State state_;
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/* Needed to update allocator_ and to read state_ and activeStreams_. */
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friend class FrameBufferAllocator;
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FrameBufferAllocator *allocator_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_CAMERA_H__ */
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