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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSOUNDINSTANCE_P_H
#define QSOUNDINSTANCE_P_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 <QVector3D>
#include <QObject>
#include "qsoundsource_p.h"
QT_BEGIN_NAMESPACE
class QDeclarativeSound;
class QDeclarativeAudioEngine;
class QSoundInstance : public QObject
{
Q_OBJECT
public:
explicit QSoundInstance(QObject *parent);
~QSoundInstance();
void play();
enum State
{
StoppedState = QSoundSource::StoppedState,
PlayingState = QSoundSource::PlayingState,
PausedState = QSoundSource::PausedState
};
State state() const;
void setPosition(const QVector3D& position);
void setDirection(const QVector3D& direction);
void setVelocity(const QVector3D& velocity);
//this gain and pitch is used for dynamic user control during execution
void setGain(qreal gain);
void setPitch(qreal pitch);
void setCone(qreal innerAngle, qreal outerAngle, qreal outerGain);
//this varPitch and varGain is calculated from config in PlayVariation
void updateVariationParameters(qreal varPitch, qreal varGain, bool looping);
void bindSoundDescription(QDeclarativeSound *sound);
void update3DVolume(const QVector3D& listenerPosition);
bool attenuationEnabled() const;
Q_SIGNALS:
void stateChanged(QSoundInstance::State state);
public Q_SLOTS:
void pause();
void stop();
private Q_SLOTS:
void resume();
void bufferReady();
void categoryVolumeChanged();
void handleSourceStateChanged(QSoundSource::State);
private:
void setState(State state);
void prepareNewVariation();
void detach();
qreal categoryVolume() const;
void updatePitch();
void updateGain();
void updateConeOuterGain();
void sourcePlay();
void sourcePause();
void sourceStop();
QSoundSource *m_soundSource;
QSoundBuffer *m_bindBuffer;
QDeclarativeSound *m_sound;
int m_variationIndex;
bool m_isReady; //true if the sound source is already bound to some sound buffer
qreal m_gain;
qreal m_attenuationGain;
qreal m_varGain;
qreal m_pitch;
qreal m_varPitch;
State m_state;
qreal m_coneOuterGain;
QDeclarativeAudioEngine *m_engine;
};
QT_END_NAMESPACE
#endif // QSOUNDINSTANCE_P_H
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