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// Copyright (C) 2016 Research In Motion
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QNXAUDIOOUTPUT_H
#define QNXAUDIOOUTPUT_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 "private/qaudiosystem_p.h"
#include "qqnxaudioutils_p.h"
#include <QElapsedTimer>
#include <QTimer>
#include <QIODevice>
#include <QSocketNotifier>
#include <sys/asoundlib.h>
#include <sys/neutrino.h>
QT_BEGIN_NAMESPACE
class QnxPushIODevice;
class QQnxAudioSink : public QPlatformAudioSink
{
Q_OBJECT
public:
explicit QQnxAudioSink(const QAudioDevice &deviceInfo, QObject *parent);
~QQnxAudioSink();
void start(QIODevice *source) override;
QIODevice *start() override;
void stop() override;
void reset() override;
void suspend() override;
void resume() override;
qsizetype bytesFree() const override;
void setBufferSize(qsizetype) override;
qsizetype bufferSize() const override;
qint64 processedUSecs() const override;
QAudio::Error error() const override;
QAudio::State state() const override;
void setFormat(const QAudioFormat &format) override;
QAudioFormat format() const override;
void setVolume(qreal volume) override;
qreal volume() const override;
qint64 pushData(const char *data, qint64 len);
private slots:
void pullData();
void pcmNotifierActivated(int socket);
private:
bool open();
void close();
void changeState(QAudio::State state, QAudio::Error error);
void addPcmEventFilter();
void createPcmNotifiers();
void destroyPcmNotifiers();
void suspendInternal(QAudio::State suspendState);
void resumeInternal();
void updateState();
qint64 write(const char *data, qint64 len);
QIODevice *m_source;
bool m_pushSource;
QTimer *m_timer;
QAudio::Error m_error;
QAudio::State m_state;
QAudioFormat m_format;
qreal m_volume;
int m_periodSize;
QnxAudioUtils::HandleUniquePtr m_pcmHandle;
qint64 m_bytesWritten;
int m_requestedBufferSize;
QAudioDevice m_deviceInfo;
QSocketNotifier *m_pcmNotifier;
};
class QnxPushIODevice : public QIODevice
{
Q_OBJECT
public:
explicit QnxPushIODevice(QQnxAudioSink *output);
~QnxPushIODevice();
qint64 readData(char *data, qint64 len);
qint64 writeData(const char *data, qint64 len);
bool isSequential() const override;
private:
QQnxAudioSink *m_output;
};
QT_END_NAMESPACE
#endif
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