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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* qcam - Main application window
*/
#pragma once
#include <memory>
#include <vector>
#include <libcamera/camera.h>
#include <libcamera/camera_manager.h>
#include <libcamera/controls.h>
#include <libcamera/framebuffer.h>
#include <libcamera/framebuffer_allocator.h>
#include <libcamera/request.h>
#include <libcamera/stream.h>
#include <QElapsedTimer>
#include <QIcon>
#include <QMainWindow>
#include <QMutex>
#include <QObject>
#include <QPushButton>
#include <QQueue>
#include <QTimer>
#include "../common/stream_options.h"
#include "viewfinder.h"
class QAction;
class CameraSelectorDialog;
class Image;
class HotplugEvent;
enum {
OptCamera = 'c',
OptHelp = 'h',
OptRenderer = 'r',
OptStream = 's',
OptVerbose = 'v',
};
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(libcamera::CameraManager *cm,
const OptionsParser::Options &options);
~MainWindow();
bool event(QEvent *e) override;
private Q_SLOTS:
void quit();
void updateTitle();
void switchCamera();
void toggleCapture(bool start);
void saveImageAs();
void captureRaw();
void processRaw(libcamera::FrameBuffer *buffer,
const libcamera::ControlList &metadata);
void renderComplete(libcamera::FrameBuffer *buffer);
private:
int createToolbars();
std::shared_ptr<libcamera::Camera> chooseCamera();
int openCamera();
int startCapture();
void stopCapture();
void addCamera(std::shared_ptr<libcamera::Camera> camera);
void removeCamera(std::shared_ptr<libcamera::Camera> camera);
int queueRequest(libcamera::Request *request);
void requestComplete(libcamera::Request *request);
void processCapture();
void processHotplug(HotplugEvent *e);
void processViewfinder(libcamera::FrameBuffer *buffer);
/* UI elements */
QToolBar *toolbar_;
QAction *startStopAction_;
QPushButton *cameraSelectButton_;
QAction *saveRaw_;
ViewFinder *viewfinder_;
QIcon iconPlay_;
QIcon iconStop_;
QString title_;
QTimer titleTimer_;
CameraSelectorDialog *cameraSelectorDialog_;
/* Options */
const OptionsParser::Options &options_;
/* Camera manager, camera, configuration and buffers */
libcamera::CameraManager *cm_;
std::shared_ptr<libcamera::Camera> camera_;
libcamera::FrameBufferAllocator *allocator_;
std::unique_ptr<libcamera::CameraConfiguration> config_;
std::map<libcamera::FrameBuffer *, std::unique_ptr<Image>> mappedBuffers_;
/* Capture state, buffers queue and statistics */
bool isCapturing_;
bool captureRaw_;
libcamera::Stream *vfStream_;
libcamera::Stream *rawStream_;
std::map<const libcamera::Stream *, QQueue<libcamera::FrameBuffer *>> freeBuffers_;
QQueue<libcamera::Request *> doneQueue_;
QQueue<libcamera::Request *> freeQueue_;
QMutex mutex_; /* Protects freeBuffers_, doneQueue_, and freeQueue_ */
uint64_t lastBufferTime_;
QElapsedTimer frameRateInterval_;
uint32_t previousFrames_;
uint32_t framesCaptured_;
std::vector<std::unique_ptr<libcamera::Request>> requests_;
};
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