221cf408f3
This applies clang thread safety annotation to CameraDevice. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* camera_device.h - libcamera Android Camera Device
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*/
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#pragma once
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#include <map>
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#include <memory>
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#include <queue>
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#include <vector>
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#include <hardware/camera3.h>
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#include <libcamera/base/class.h>
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#include <libcamera/base/log.h>
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#include <libcamera/base/message.h>
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#include <libcamera/base/mutex.h>
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#include <libcamera/camera.h>
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#include <libcamera/framebuffer.h>
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#include <libcamera/geometry.h>
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#include <libcamera/pixel_format.h>
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#include <libcamera/request.h>
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#include <libcamera/stream.h>
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#include "camera_capabilities.h"
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#include "camera_metadata.h"
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#include "camera_stream.h"
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#include "camera_worker.h"
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#include "jpeg/encoder.h"
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class Camera3RequestDescriptor;
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struct CameraConfigData;
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class CameraDevice : protected libcamera::Loggable
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{
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public:
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static std::unique_ptr<CameraDevice> create(unsigned int id,
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std::shared_ptr<libcamera::Camera> cam);
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~CameraDevice();
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int initialize(const CameraConfigData *cameraConfigData);
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int open(const hw_module_t *hardwareModule);
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void close();
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void flush();
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unsigned int id() const { return id_; }
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camera3_device_t *camera3Device() { return &camera3Device_; }
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const CameraCapabilities *capabilities() const { return &capabilities_; }
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const std::shared_ptr<libcamera::Camera> &camera() const { return camera_; }
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const std::string &maker() const { return maker_; }
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const std::string &model() const { return model_; }
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int facing() const { return facing_; }
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int orientation() const { return orientation_; }
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unsigned int maxJpegBufferSize() const;
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void setCallbacks(const camera3_callback_ops_t *callbacks);
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const camera_metadata_t *getStaticMetadata();
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const camera_metadata_t *constructDefaultRequestSettings(int type);
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int configureStreams(camera3_stream_configuration_t *stream_list);
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int processCaptureRequest(camera3_capture_request_t *request);
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void requestComplete(libcamera::Request *request);
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void streamProcessingComplete(Camera3RequestDescriptor::StreamBuffer *bufferStream,
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Camera3RequestDescriptor::Status status);
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protected:
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std::string logPrefix() const override;
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private:
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LIBCAMERA_DISABLE_COPY_AND_MOVE(CameraDevice)
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CameraDevice(unsigned int id, std::shared_ptr<libcamera::Camera> camera);
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enum class State {
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Stopped,
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Flushing,
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Running,
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};
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void stop() LIBCAMERA_TSA_EXCLUDES(stateMutex_);
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std::unique_ptr<libcamera::FrameBuffer>
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createFrameBuffer(const buffer_handle_t camera3buffer,
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libcamera::PixelFormat pixelFormat,
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const libcamera::Size &size);
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void abortRequest(Camera3RequestDescriptor *descriptor) const;
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bool isValidRequest(camera3_capture_request_t *request) const;
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void notifyShutter(uint32_t frameNumber, uint64_t timestamp);
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void notifyError(uint32_t frameNumber, camera3_stream_t *stream,
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camera3_error_msg_code code) const;
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int processControls(Camera3RequestDescriptor *descriptor);
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void completeDescriptor(Camera3RequestDescriptor *descriptor)
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LIBCAMERA_TSA_EXCLUDES(descriptorsMutex_);
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void sendCaptureResults() LIBCAMERA_TSA_REQUIRES(descriptorsMutex_);
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void setBufferStatus(Camera3RequestDescriptor::StreamBuffer &buffer,
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Camera3RequestDescriptor::Status status);
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std::unique_ptr<CameraMetadata> getResultMetadata(
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const Camera3RequestDescriptor &descriptor) const;
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unsigned int id_;
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camera3_device_t camera3Device_;
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CameraWorker worker_;
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libcamera::Mutex stateMutex_; /* Protects access to the camera state. */
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State state_ LIBCAMERA_TSA_GUARDED_BY(stateMutex_);
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std::shared_ptr<libcamera::Camera> camera_;
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std::unique_ptr<libcamera::CameraConfiguration> config_;
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CameraCapabilities capabilities_;
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std::map<unsigned int, std::unique_ptr<CameraMetadata>> requestTemplates_;
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const camera3_callback_ops_t *callbacks_;
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std::vector<CameraStream> streams_;
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libcamera::Mutex descriptorsMutex_ LIBCAMERA_TSA_ACQUIRED_AFTER(stateMutex_);
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std::queue<std::unique_ptr<Camera3RequestDescriptor>> descriptors_
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LIBCAMERA_TSA_GUARDED_BY(descriptorsMutex_);
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std::string maker_;
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std::string model_;
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int facing_;
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int orientation_;
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CameraMetadata lastSettings_;
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};
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