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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* viewfinder_qt.h - qcam - QPainter-based ViewFinder
*/
#ifndef __QCAM_VIEWFINDER_QT_H__
#define __QCAM_VIEWFINDER_QT_H__
#include <QIcon>
#include <QImage>
#include <QList>
#include <QMutex>
#include <QSize>
#include <QWidget>
#include <libcamera/formats.h>
#include <libcamera/framebuffer.h>
#include <libcamera/pixel_format.h>
#include "format_converter.h"
#include "viewfinder.h"
class ViewFinderQt : public QWidget, public ViewFinder
{
Q_OBJECT
public:
ViewFinderQt(QWidget *parent);
~ViewFinderQt();
const QList<libcamera::PixelFormat> &nativeFormats() const override;
int setFormat(const libcamera::PixelFormat &format, const QSize &size,
unsigned int stride) override;
void render(libcamera::FrameBuffer *buffer, Image *image) override;
void stop() override;
QImage getCurrentImage() override;
Q_SIGNALS:
void renderComplete(libcamera::FrameBuffer *buffer);
protected:
void paintEvent(QPaintEvent *) override;
QSize sizeHint() const override;
private:
FormatConverter converter_;
libcamera::PixelFormat format_;
QSize size_;
/* Camera stopped icon */
QSize vfSize_;
QIcon icon_;
QPixmap pixmap_;
/* Buffer and render image */
libcamera::FrameBuffer *buffer_;
QImage image_;
QMutex mutex_; /* Prevent concurrent access to image_ */
};
#endif /* __QCAM_VIEWFINDER_QT_H__ */
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