File indexing completed on 2025-02-23 04:35:42

 /*
     SPDX-FileCopyrightText: 2010-2022 Mladen Milinkovic <max@smoothware.net>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef ZOOMBUFFER_H
 #define ZOOMBUFFER_H
 
 #include <QMutex>
 #include <QThread>
 #include <QWaitCondition>
 
 #include "gui/waveform/wavebuffer.h"
 
 namespace SubtitleComposer {
 class ZoomBuffer : public QThread
 {
     Q_OBJECT
 
 public:
     explicit ZoomBuffer(WaveBuffer *parent);
     virtual ~ZoomBuffer();
 
     void setWaveform(const SAMPLE_TYPE * const *waveform);
     void setZoomScale(quint32 samplesPerPixel);
     void zoomedBuffer(quint32 timeStart, quint32 timeEnd, WaveZoomData **buffers, quint32 *bufLen);
 
     inline quint32 samplesPerPixel() const { return m_samplesPerPixel; }
 
 private:
     void run() override;
     void updateZoomRange(quint32 *start, quint32 end);
     void stopAndClear();
     void start();
 
 signals:
     void zoomedBufferReady();
 
 private:
     WaveBuffer *m_waveBuffer;
 
     quint32 m_samplesPerPixel;
     WaveZoomData **m_waveformZoomed;
     quint32 m_waveformZoomedSize;
     const SAMPLE_TYPE * const *m_waveform;
 
     QMutex m_publicMutex;
 
     bool m_restartProcessing;
 
     QMutex m_reqMutex;
     quint32 m_reqStart = 0;
     quint32 m_reqEnd = 0;
     quint32 *m_reqLen = nullptr;
 };
 }
 
 #endif // ZOOMBUFFER_H