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Diffstat (limited to 'src/document/io/MupExporter.cpp')
-rw-r--r-- | src/document/io/MupExporter.cpp | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/src/document/io/MupExporter.cpp b/src/document/io/MupExporter.cpp new file mode 100644 index 0000000..067c909 --- /dev/null +++ b/src/document/io/MupExporter.cpp @@ -0,0 +1,453 @@ +/* -*- 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 2000-2008 + Guillaume Laurent <[email protected]>, + Chris Cannam <[email protected]>, + Richard Bown <[email protected]> + + 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. +*/ + + +#include "MupExporter.h" + +#include "misc/Debug.h" +#include "base/BaseProperties.h" +#include "base/Composition.h" +#include "base/Event.h" +#include "base/Exception.h" +#include "base/NotationQuantizer.h" +#include "base/NotationTypes.h" +#include "base/Segment.h" +#include "base/SegmentNotationHelper.h" +#include "base/Sets.h" +#include "base/Track.h" +#include "gui/general/ProgressReporter.h" +#include <qobject.h> + +using std::string; + +namespace Rosegarden +{ +using namespace BaseProperties; + +MupExporter::MupExporter(QObject *parent, + Composition *composition, + string fileName) : + ProgressReporter(parent, "mupExporter"), + m_composition(composition), + m_fileName(fileName) +{ + // nothing else +} + +MupExporter::~MupExporter() +{ + // nothing +} + +bool +MupExporter::write() +{ + Composition *c = m_composition; + + std::ofstream str(m_fileName.c_str(), std::ios::out); + if (!str) { + std::cerr << "MupExporter::write() - can't write file " << m_fileName + << std::endl; + return false; + } + + str << "score\n"; + str << "\tstaffs=" << c->getNbTracks() << "\n"; + + int ts = c->getTimeSignatureCount(); + std::pair<timeT, TimeSignature> tspair; + if (ts > 0) + tspair = c->getTimeSignatureChange(0); + str << "\ttime=" + << tspair.second.getNumerator() << "/" + << tspair.second.getDenominator() << "\n"; + + for (int barNo = -1; barNo < c->getNbBars(); ++barNo) { + + for (TrackId trackNo = c->getMinTrackId(); + trackNo <= c->getMaxTrackId(); ++trackNo) { + + if (barNo < 0) { + writeClefAndKey(str, trackNo); + continue; + } + + if (barNo == 0 && trackNo == 0) { + str << "\nmusic\n"; + } + + str << "\t" << trackNo + 1 << ":"; + + Segment *s = 0; + timeT barStart = c->getBarStart(barNo); + timeT barEnd = c->getBarEnd(barNo); + + for (Composition::iterator ci = c->begin(); ci != c->end(); ++ci) { + if ((*ci)->getTrack() == trackNo && + (*ci)->getStartTime() < barEnd && + (*ci)->getEndMarkerTime() > barStart) { + s = *ci; + break; + } + } + + TimeSignature timeSig(c->getTimeSignatureAt(barStart)); + + if (!s) { + // write empty bar + writeInventedRests(str, timeSig, 0, barEnd - barStart); + continue; + } + + if (s->getStartTime() > barStart) { + writeInventedRests(str, timeSig, + 0, s->getStartTime() - barStart); + } + + // Mup insists that every bar has the correct duration, and won't + // recover if one goes wrong. Keep careful tabs on this: it means + // that for example we have to round chord durations down where + // the next chord starts too soon + //!!! we _really_ can't cope with time sig changes yet! + + timeT writtenDuration = writeBar(str, c, s, barStart, barEnd, + timeSig, trackNo); + + if (writtenDuration < timeSig.getBarDuration()) { + RG_DEBUG << "writtenDuration: " << writtenDuration + << ", bar duration " << timeSig.getBarDuration() + << endl; + writeInventedRests(str, timeSig, writtenDuration, + timeSig.getBarDuration() - writtenDuration); + + } else if (writtenDuration > timeSig.getBarDuration()) { + std::cerr << "WARNING: overfull bar in Mup export: duration " << writtenDuration + << " into bar of duration " << timeSig.getBarDuration() + << std::endl; + //!!! warn user + } + + str << "\n"; + } + + if (barNo >= 0) + str << "bar" << std::endl; + } + + str << "\n" << std::endl; + str.close(); + return true; +} + +timeT +MupExporter::writeBar(std::ofstream &str, + Composition *c, + Segment *s, + timeT barStart, timeT barEnd, + TimeSignature &timeSig, + TrackId trackNo) +{ + timeT writtenDuration = 0; + SegmentNotationHelper helper(*s); + helper.setNotationProperties(); + + long currentGroupId = -1; + string currentGroupType = ""; + long currentTupletCount = 3; + bool first = true; + bool openBeamWaiting = false; + + for (Segment::iterator si = s->findTime(barStart); + s->isBeforeEndMarker(si) && + (*si)->getNotationAbsoluteTime() < barEnd; ++si) { + + if ((*si)->isa(Note::EventType)) { + + Chord chord(*s, si, c->getNotationQuantizer()); + Event *e = *chord.getInitialNote(); + + timeT absTime = e->getNotationAbsoluteTime(); + timeT duration = e->getNotationDuration(); + try { + // tuplet compensation, etc + Note::Type type = e->get<Int>(NOTE_TYPE); + int dots = e->get + <Int>(NOTE_DOTS); + duration = Note(type, dots).getDuration(); + } catch (Exception e) { // no properties + std::cerr << "WARNING: MupExporter::writeBar: incomplete note properties: " << e.getMessage() << std::endl; + } + + timeT toNext = duration; + Segment::iterator nextElt = chord.getFinalElement(); + if (s->isBeforeEndMarker(++nextElt)) { + toNext = (*nextElt)->getNotationAbsoluteTime() - absTime; + if (toNext < duration) + duration = toNext; + } + + bool enteringGroup = false; + + if (e->has(BEAMED_GROUP_ID) && e->has(BEAMED_GROUP_TYPE)) { + + long id = e->get + <Int>(BEAMED_GROUP_ID); + string type = e->get + <String>(BEAMED_GROUP_TYPE); + + if (id != currentGroupId) { + + // leave previous group first + if (currentGroupId >= 0) { + if (!openBeamWaiting) + str << " ebm"; + openBeamWaiting = false; + + if (currentGroupType == GROUP_TYPE_TUPLED) { + str << "; }" << currentTupletCount; + } + } + + currentGroupId = id; + currentGroupType = type; + enteringGroup = true; + } + } else { + + if (currentGroupId >= 0) { + if (!openBeamWaiting) + str << " ebm"; + openBeamWaiting = false; + + if (currentGroupType == GROUP_TYPE_TUPLED) { + str << "; }" << currentTupletCount; + } + + currentGroupId = -1; + currentGroupType = ""; + } + } + + if (openBeamWaiting) + str << " bm"; + if (!first) + str << ";"; + str << " "; + + if (currentGroupType == GROUP_TYPE_TUPLED) { + e->get + <Int>(BEAMED_GROUP_UNTUPLED_COUNT, currentTupletCount); + if (enteringGroup) + str << "{ "; + //!!! duration = helper.getCompensatedNotationDuration(e); + + } + + writeDuration(str, duration); + + if (toNext > duration && currentGroupType != GROUP_TYPE_TUPLED) { + writeInventedRests + (str, timeSig, + absTime + duration - barStart, toNext - duration); + } + + writtenDuration += toNext; + + for (Chord::iterator chi = chord.begin(); + chi != chord.end(); ++chi) { + writePitch(str, trackNo, **chi); + } + + openBeamWaiting = false; + if (currentGroupType == GROUP_TYPE_BEAMED || + currentGroupType == GROUP_TYPE_TUPLED) { + if (enteringGroup) + openBeamWaiting = true; + } + + si = chord.getFinalElement(); + + first = false; + + } else if ((*si)->isa(Note::EventRestType)) { + + if (currentGroupId >= 0) { + + if (!openBeamWaiting) + str << " ebm"; + openBeamWaiting = false; + + if (currentGroupType == GROUP_TYPE_TUPLED) { + str << "; }" << currentTupletCount; + } + + currentGroupId = -1; + currentGroupType = ""; + } + + if (openBeamWaiting) + str << " bm"; + if (!first) + str << ";"; + str << " "; + + writeDuration(str, (*si)->getNotationDuration()); + writtenDuration += (*si)->getNotationDuration(); + str << "r"; + + first = false; + openBeamWaiting = false; + + } // ignore all other sorts of events for now + } + + if (currentGroupId >= 0) { + if (!openBeamWaiting) + str << " ebm"; + openBeamWaiting = false; + + if (currentGroupType == GROUP_TYPE_TUPLED) { + str << "; }" << currentTupletCount; + } + } + + if (openBeamWaiting) + str << " bm"; + if (!first) + str << ";"; + + return writtenDuration; +} + +void +MupExporter::writeClefAndKey(std::ofstream &str, TrackId trackNo) +{ + Composition *c = m_composition; + + for (Composition::iterator i = c->begin(); i != c->end(); ++i) { + if ((*i)->getTrack() == trackNo) { + + Clef clef((*i)->getClefAtTime((*i)->getStartTime())); + Rosegarden::Key key((*i)->getKeyAtTime((*i)->getStartTime())); + + + str << "staff " << trackNo + 1 << "\n"; + + if (clef.getClefType() == Clef::Treble) { + str << "\tclef=treble\n"; + } else if (clef.getClefType() == Clef::Alto) { + str << "\tclef=alto\n"; + } else if (clef.getClefType() == Clef::Tenor) { + str << "\tclef=tenor\n"; + } else if (clef.getClefType() == Clef::Bass) { + str << "\tclef=bass\n"; + } + + str << "\tkey=" << key.getAccidentalCount() + << (key.isSharp() ? "#" : "&") + << (key.isMinor() ? "minor" : "major") << std::endl; + + m_clefKeyMap[trackNo] = ClefKeyPair(clef, key); + + return ; + } + } +} + +void +MupExporter::writeInventedRests(std::ofstream &str, + TimeSignature &timeSig, + timeT offset, + timeT duration) +{ + str << " "; + DurationList dlist; + timeSig.getDurationListForInterval(dlist, duration, offset); + for (DurationList::iterator i = dlist.begin(); + i != dlist.end(); ++i) { + writeDuration(str, *i); + str << "r;"; + } +} + +void +MupExporter::writePitch(std::ofstream &str, TrackId trackNo, + Event *event) +{ + long pitch = 0; + if (!event->get + <Int>(PITCH, pitch)) { + str << "c"; // have to write something, or it won't parse + return ; + } + + Accidental accidental = Accidentals::NoAccidental; + (void)event->get + <String>(ACCIDENTAL, accidental); + + // mup octave: treble clef is in octave 4? + + ClefKeyPair ck; + ClefKeyMap::iterator ckmi = m_clefKeyMap.find(trackNo); + if (ckmi != m_clefKeyMap.end()) + ck = ckmi->second; + + Pitch p(pitch, accidental); + Accidental acc(p.getDisplayAccidental(ck.second)); + char note(p.getNoteName(ck.second)); + int octave(p.getOctave()); + + // just to avoid assuming that the note names returned by Pitch are in + // the same set as those expected by Mup -- in practice they are the same + // letters but this changes the case + str << "cdefgab"[Pitch::getIndexForNote(note)]; + + if (acc == Accidentals::DoubleFlat) + str << "&&"; + else if (acc == Accidentals::Flat) + str << "&"; + else if (acc == Accidentals::Sharp) + str << "#"; + else if (acc == Accidentals::DoubleSharp) + str << "##"; + else if (acc == Accidentals::Natural) + str << "n"; + + str << octave + 1; +} + +void +MupExporter::writeDuration(std::ofstream &str, timeT duration) +{ + Note note(Note::getNearestNote(duration, 2)); + int n = Note::Semibreve - note.getNoteType(); + if (n < 0) + str << "1/" << (1 << ( -n)); + else + str << (1 << n); + for (int d = 0; d < note.getDots(); ++d) + str << "."; +} + +} |