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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSOUNDINSTANCE_P_H
#define QSOUNDINSTANCE_P_H
#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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