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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* viewfinder.h - qcam - Viewfinder
*/
#ifndef __QCAM_VIEWFINDER_H__
#define __QCAM_VIEWFINDER_H__
#include <stddef.h>
#include <QIcon>
#include <QImage>
#include <QMutex>
#include <QSize>
#include <QWidget>
#include <libcamera/buffer.h>
#include <libcamera/pixelformats.h>
#include "format_converter.h"
class QImage;
struct MappedBuffer {
void *memory;
size_t size;
};
class ViewFinder : public QWidget
{
Q_OBJECT
public:
ViewFinder(QWidget *parent);
~ViewFinder();
int setFormat(const libcamera::PixelFormat &format, const QSize &size);
void render(libcamera::FrameBuffer *buffer, MappedBuffer *map);
void stop();
QImage getCurrentImage();
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__ */
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