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// Copyright (C) 2016 Research In Motion
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQNXCAMERA_H
#define QQNXCAMERA_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qqnxcamerahandle_p.h"
#include <QtCore/qlist.h>
#include <QtCore/qmutex.h>
#include <QtCore/qobject.h>
#include <QtCore/qurl.h>
#include <camera/camera_api.h>
#include <camera/camera_3a.h>
#include <memory>
#include <optional>
QT_BEGIN_NAMESPACE
class QQnxCameraFrameBuffer;
class QQnxMediaCaptureSession;
class QQnxVideoSink;
class QQnxCamera : public QObject
{
Q_OBJECT
public:
explicit QQnxCamera(camera_unit_t unit, QObject *parent = nullptr);
~QQnxCamera();
camera_unit_t unit() const;
QString name() const;
bool isValid() const;
bool isActive() const;
void start();
void stop();
bool startVideoRecording(const QString &filename);
void stopVideoRecording();
bool setCameraFormat(uint32_t width, uint32_t height, double frameRate);
bool isFocusModeSupported(camera_focusmode_t mode) const;
bool setFocusMode(camera_focusmode_t mode);
camera_focusmode_t focusMode() const;
void setCustomFocusPoint(const QPointF &point);
void setManualFocusStep(int step);
int manualFocusStep() const;
int maxFocusStep() const;
QSize viewFinderSize() const;
uint32_t minimumZoomLevel() const;
uint32_t maximumZoomLevel() const;
bool isSmoothZoom() const;
double zoomRatio(uint32_t zoomLevel) const;
bool setZoomFactor(uint32_t factor);
void setEvOffset(float ev);
uint32_t manualIsoSensitivity() const;
void setManualIsoSensitivity(uint32_t value);
void setManualExposureTime(double seconds);
double manualExposureTime() const;
void setWhiteBalanceMode(camera_whitebalancemode_t mode);
camera_whitebalancemode_t whiteBalanceMode() const;
void setManualWhiteBalance(uint32_t value);
uint32_t manualWhiteBalance() const;
bool hasFeature(camera_feature_t feature) const;
camera_handle_t handle() const;
QList<camera_vfmode_t> supportedVfModes() const;
QList<camera_res_t> supportedVfResolutions() const;
QList<camera_frametype_t> supportedVfFrameTypes() const;
QList<camera_focusmode_t> supportedFocusModes() const;
QList<double> specifiedVfFrameRates(camera_frametype_t frameType,
camera_res_t resolution) const;
QList<camera_frametype_t> supportedRecordingFrameTypes() const;
QList<uint32_t> supportedWhiteBalanceValues() const;
bool hasContinuousWhiteBalanceValues() const;
static QList<camera_unit_t> supportedUnits();
std::unique_ptr<QQnxCameraFrameBuffer> takeCurrentFrame();
Q_SIGNALS:
void focusModeChanged(camera_focusmode_t mode);
void customFocusPointChanged(const QPointF &point);
void minimumZoomFactorChanged(double factor);
double maximumZoomFactorChanged(double factor);
void frameAvailable();
private:
struct FocusStep
{
int step; // current step
int maxStep; // max supported step
};
FocusStep focusStep() const;
struct VideoFormat
{
uint32_t width;
uint32_t height;
uint32_t rotation;
double frameRate;
camera_frametype_t frameType;
};
friend QDebug &operator<<(QDebug&, const VideoFormat&);
VideoFormat vfFormat() const;
void setVfFormat(const VideoFormat &format);
VideoFormat recordingFormat() const;
void setRecordingFormat(const VideoFormat &format);
void updateZoomLimits();
void updateSupportedWhiteBalanceValues();
void setColorTemperatureInternal(unsigned temp);
bool isVideoEncodingSupported() const;
void handleVfBuffer(camera_buffer_t *buffer);
// viewfinder callback
void handleVfStatus(camera_devstatus_t status, uint16_t extraData);
// our handler running on main thread
Q_INVOKABLE void handleStatusChange(camera_devstatus_t status, uint16_t extraData);
template <typename T, typename U>
using QueryFuncPtr = camera_error_t (*)(camera_handle_t, U, U *, T *);
template <typename T, typename U>
QList<T> queryValues(QueryFuncPtr<T, U> func) const;
static void viewfinderCallback(camera_handle_t handle,
camera_buffer_t *buffer, void *arg);
static void statusCallback(camera_handle_t handle, camera_devstatus_t status,
uint16_t extraData, void *arg);
QQnxMediaCaptureSession *m_session = nullptr;
camera_unit_t m_cameraUnit = CAMERA_UNIT_NONE;
QQnxCameraHandle m_handle;
uint32_t m_minZoom = 0;
uint32_t m_maxZoom = 0;
QMutex m_currentFrameMutex;
QList<uint32_t> m_supportedWhiteBalanceValues;
std::unique_ptr<QQnxCameraFrameBuffer> m_currentFrame;
std::optional<VideoFormat> m_originalVfFormat;
bool m_viewfinderActive = false;
bool m_recordingVideo = false;
bool m_valid = false;
bool m_smoothZoom = false;
bool m_continuousWhiteBalanceValues = false;
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(camera_devstatus_t)
Q_DECLARE_METATYPE(uint16_t)
#endif
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