
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */

/*
    Rosegarden
    A MIDI and audio sequencer and musical notation editor.

    This program is Copyright 2000-2007
        Guillaume Laurent   <glaurent@telegraph-road.org>,
        Chris Cannam        <cannam@all-day-breakfast.com>,
        Richard Bown        <richard.bown@ferventsoftware.com>

    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
    Bown to claim authorship of this work have been asserted.

    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.

    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _SEQUENCERMAPPER_H_
#define _SEQUENCERMAPPER_H_

#include "sound/SequencerDataBlock.h"
#include "base/RealTime.h"

namespace Rosegarden
{

class MappedEvent;
class MappedComposition;


class SequencerMmapper
{
public:
    SequencerMmapper();
    ~SequencerMmapper();
    
    void updatePositionPointer(RealTime time) {
        m_sequencerDataBlock->setPositionPointer(time);
    }

    void updateVisual(MappedEvent *ev) {
        m_sequencerDataBlock->setVisual(ev);
    }

    void updateRecordingBuffer(MappedComposition *mC) {
        m_sequencerDataBlock->addRecordedEvents(mC);
    }

    void setTrackLevel(TrackId track, const LevelInfo &info) {
        m_sequencerDataBlock->setTrackLevel(track, info);
    }

    void setInstrumentLevel(InstrumentId id,
                            const LevelInfo &info) {
        m_sequencerDataBlock->setInstrumentLevel(id, info);
    }

    void setInstrumentRecordLevel(InstrumentId id,
                                  const LevelInfo &info) {
        m_sequencerDataBlock->setInstrumentRecordLevel(id, info);
    }

    void setSubmasterLevel(int submaster,
                           const LevelInfo &info) {
        m_sequencerDataBlock->setSubmasterLevel(submaster, info);
    }

    void setMasterLevel(const LevelInfo &info) {
        m_sequencerDataBlock->setMasterLevel(info);
    }

    SequencerDataBlock *getSequencerDataBlock() {
        return m_sequencerDataBlock;
    }
    void setControlBlock(ControlBlock *cb) {
        m_sequencerDataBlock->setControlBlock(cb);
    }

protected:
    void init();
    void setFileSize(size_t);
    QString createFileName();

    //--------------- Data members ---------------------------------
    //
    QString               m_fileName;
    int                   m_fd;
    void*                 m_mmappedBuffer;
    size_t                m_mmappedSize;
    SequencerDataBlock *m_sequencerDataBlock;
};

}

#endif // _SEQUENCERMAPPER_H_
