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/****************************************************************************
**
** Copyright (C) 2016 Research In Motion
** Contact: https://www.qt.io/licensing/
**
** This file is part 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 QNXAUDIOOUTPUT_H
#define QNXAUDIOOUTPUT_H
#include "qaudiosystem.h"
#include <QTime>
#include <QTimer>
#include <QIODevice>
#include <QSocketNotifier>
#include <sys/asoundlib.h>
#include <sys/neutrino.h>
QT_BEGIN_NAMESPACE
class QnxPushIODevice;
class QnxAudioOutput : public QAbstractAudioOutput
{
Q_OBJECT
public:
QnxAudioOutput();
~QnxAudioOutput();
void start(QIODevice *source) Q_DECL_OVERRIDE;
QIODevice *start() Q_DECL_OVERRIDE;
void stop() Q_DECL_OVERRIDE;
void reset() Q_DECL_OVERRIDE;
void suspend() Q_DECL_OVERRIDE;
void resume() Q_DECL_OVERRIDE;
int bytesFree() const Q_DECL_OVERRIDE;
int periodSize() const Q_DECL_OVERRIDE;
void setBufferSize(int) Q_DECL_OVERRIDE {}
int bufferSize() const Q_DECL_OVERRIDE { return 0; }
void setNotifyInterval(int ms) Q_DECL_OVERRIDE;
int notifyInterval() const Q_DECL_OVERRIDE;
qint64 processedUSecs() const Q_DECL_OVERRIDE;
qint64 elapsedUSecs() const Q_DECL_OVERRIDE;
QAudio::Error error() const Q_DECL_OVERRIDE;
QAudio::State state() const Q_DECL_OVERRIDE;
void setFormat(const QAudioFormat &format) Q_DECL_OVERRIDE;
QAudioFormat format() const Q_DECL_OVERRIDE;
void setVolume(qreal volume) Q_DECL_OVERRIDE;
qreal volume() const Q_DECL_OVERRIDE;
void setCategory(const QString &category) Q_DECL_OVERRIDE;
QString category() const Q_DECL_OVERRIDE;
private slots:
void pullData();
private:
bool open();
void close();
void setError(QAudio::Error error);
void setState(QAudio::State state);
void addPcmEventFilter();
void createPcmNotifiers();
void destroyPcmNotifiers();
void setTypeName(snd_pcm_channel_params_t *params);
void suspendInternal(QAudio::State suspendState);
void resumeInternal();
friend class QnxPushIODevice;
qint64 write(const char *data, qint64 len);
QIODevice *m_source;
bool m_pushSource;
QTimer m_timer;
int m_notifyInterval;
QAudio::Error m_error;
QAudio::State m_state;
QAudioFormat m_format;
qreal m_volume;
QString m_category;
int m_periodSize;
snd_pcm_t *m_pcmHandle;
qint64 m_bytesWritten;
QTime m_startTimeStamp;
QTime m_intervalTimeStamp;
qint64 m_intervalOffset;
#if _NTO_VERSION >= 700
QSocketNotifier *m_pcmNotifier;
private slots:
void pcmNotifierActivated(int socket);
#endif
};
class QnxPushIODevice : public QIODevice
{
Q_OBJECT
public:
explicit QnxPushIODevice(QnxAudioOutput *output);
~QnxPushIODevice();
qint64 readData(char *data, qint64 len);
qint64 writeData(const char *data, qint64 len);
private:
QnxAudioOutput *m_output;
};
QT_END_NAMESPACE
#endif
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