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Diffstat (limited to 'src/plugins/qnx-audio/audio/qnxaudiooutput.h')
-rw-r--r-- | src/plugins/qnx-audio/audio/qnxaudiooutput.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/plugins/qnx-audio/audio/qnxaudiooutput.h b/src/plugins/qnx-audio/audio/qnxaudiooutput.h new file mode 100644 index 000000000..77c15e47a --- /dev/null +++ b/src/plugins/qnx-audio/audio/qnxaudiooutput.h @@ -0,0 +1,131 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Research In Motion +** Contact: http://www.qt-project.org/legal +** +** 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 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 QNXAUDIOOUTPUT_H +#define QNXAUDIOOUTPUT_H + +#include "qaudiosystem.h" + +#include <QTime> +#include <QTimer> + +#include <sys/asoundlib.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; + +private slots: + void pullData(); + +private: + bool open(); + void close(); + void setError(QAudio::Error error); + void setState(QAudio::State state); + + 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; + int m_periodSize; + + snd_pcm_t *m_pcmHandle; + qint64 m_bytesWritten; + QTime m_startTimeStamp; + QTime m_intervalTimeStamp; + qint64 m_intervalOffset; +}; + +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 |