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

    A MIDI and audio sequencer and musical notation editor.
    Copyright 2000-2009 the Rosegarden development team.

    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.


#include "base/MidiProgram.h"
#include "base/RealTime.h"
#include "base/Track.h"
#include "sound/SequencerDataBlock.h"
#include <qstring.h>

class LevelInfo;

namespace Rosegarden

class MappedEvent;
class MappedComposition;

class SequencerMapper
    SequencerMapper(const QString filename);

    RealTime getPositionPointer() const {
        return m_sequencerDataBlock->getPositionPointer();

    bool getVisual(MappedEvent &ev) const {
        return m_sequencerDataBlock->getVisual(ev);

    int getRecordedEvents(MappedComposition &mC) const {
        return m_sequencerDataBlock->getRecordedEvents(mC);

    bool getTrackLevel(TrackId track,
                       LevelInfo &info) const {
        return m_sequencerDataBlock->getTrackLevel(track, info);

    bool getInstrumentLevel(InstrumentId id,
                            LevelInfo &info) const {
        return m_sequencerDataBlock->getInstrumentLevel(id, info);

    bool getInstrumentLevelForMixer(InstrumentId id,
                            LevelInfo &info) const {
        return m_sequencerDataBlock->getInstrumentLevelForMixer(id, info);

    bool getInstrumentRecordLevel(InstrumentId id,
                                  LevelInfo &info) const {
        return m_sequencerDataBlock->getInstrumentRecordLevel(id, info);

    bool getInstrumentRecordLevelForMixer(InstrumentId id,
                                          LevelInfo &info) const {
        return m_sequencerDataBlock->getInstrumentRecordLevelForMixer(id, info);

    bool getSubmasterLevel(int submaster,
                           LevelInfo &info) const {
        return m_sequencerDataBlock->getSubmasterLevel(submaster, info);

    bool getMasterLevel(LevelInfo &info) const {
        return m_sequencerDataBlock->getMasterLevel(info);

    void map();
    void unmap();

    int          m_fd;
    size_t       m_mmappedSize;
    void*        m_mmappedBuffer;
    QString      m_filename;
    SequencerDataBlock *m_sequencerDataBlock;



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