File indexing completed on 2024-04-28 15:08:06

 /* GCompris - GSynth.h
  *
  * SPDX-FileCopyrightText: 2018 Timothée Giet <animtim@gmail.com>
  *
  * Authors:
  *   Johnny Jazeix <jazeix@gmail.com>
  *   Timothée Giet <animtim@gmail.com>
  *
  *   SPDX-License-Identifier: GPL-3.0-or-later
  */
 #ifndef GSYNTH_H
 #define GSYNTH_H
 
 #include <QAudioDeviceInfo>
 #include <QAudioOutput>
 #include <QTimer>
 #include <QMap>
 #include "preset.h"
 
 class QQmlEngine;
 class QJSEngine;
 
 class Generator;
 
 class GSynth : public QObject
 {
     Q_OBJECT
 
 public:
     explicit GSynth(QObject *parent = nullptr);
     virtual ~GSynth();
 
     /**
      * Generate a note and start the corresponding timer
      *  to stop it at "duration" ms.
      *
      * @param note note to play
      * @param duration how much time the note needs to be played
      */
     Q_INVOKABLE void generate(int note, int duration);
 
     static GSynth *getInstance() {
         if(!m_instance) {
             m_instance = new GSynth();
         }
         return m_instance;
     }
     static QObject *synthProvider(QQmlEngine *engine,
                                   QJSEngine *scriptEngine);
 
 protected:
     static GSynth *m_instance;
 
 private Q_SLOTS:
     void stopAudio(int note);
     
 private:
     Generator        *m_generator;
     QAudioDeviceInfo  m_device;
     QAudioFormat      m_format;
     QByteArray        m_buffer;
     QAudioOutput     *m_audioOutput;
     QMap<int, QTimer *> m_timers;
     
     Preset PresetCustom;
 };
 
 #endif // GSYNTH_H