SampleFIFO.h

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/*************************************************************************
           SampleFIFO.h  -  simple FIFO, tuned for sample_t
                             -------------------
    begin                : Sun Apr 11 2004
    copyright            : (C) 2004 by Thomas Eschenbacher
    email                : Thomas.Eschenbacher@gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef SAMPLE_FIFO_H
#define SAMPLE_FIFO_H

#include "config.h"

#include <QtGlobal>
#include <QMutex>
#include <QQueue>

#include "libkwave/SampleArray.h"

namespace Kwave
{

    class Q_DECL_EXPORT SampleFIFO
    {
    public:
        SampleFIFO();

        SampleFIFO(const SampleFIFO &other);

        virtual ~SampleFIFO();

        virtual void flush();

        virtual void put(const Kwave::SampleArray &source);

        virtual unsigned int get(Kwave::SampleArray &buffer);

        virtual unsigned int length();

        virtual void setSize(unsigned int size);

        virtual void crop();

    private:

        unsigned int unlockedLength();

    private:

        QQueue<Kwave::SampleArray> m_buffer;

        sample_index_t m_size;

        sample_index_t m_read_offset;

        QMutex m_lock;

    };
}

#endif /* SAMPLE_FIFO_H */

//***************************************************************************
//***************************************************************************