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Diffstat (limited to 'src/gui/seqmanager/AudioSegmentMmapper.cpp')
-rw-r--r-- | src/gui/seqmanager/AudioSegmentMmapper.cpp | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/gui/seqmanager/AudioSegmentMmapper.cpp b/src/gui/seqmanager/AudioSegmentMmapper.cpp new file mode 100644 index 0000000..8933b39 --- /dev/null +++ b/src/gui/seqmanager/AudioSegmentMmapper.cpp @@ -0,0 +1,133 @@ +/* -*- 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 "AudioSegmentMmapper.h" + +#include "base/Event.h" +#include "base/Composition.h" +#include "base/RealTime.h" +#include "base/Segment.h" +#include "base/TriggerSegment.h" +#include "document/RosegardenGUIDoc.h" +#include "SegmentMmapper.h" +#include "sound/MappedEvent.h" +#include <qstring.h> + + +namespace Rosegarden +{ + +AudioSegmentMmapper::AudioSegmentMmapper(RosegardenGUIDoc* doc, Segment* s, + const QString& fileName) + : SegmentMmapper(doc, s, fileName) +{} + +void AudioSegmentMmapper::dump() +{ + Composition &comp = m_doc->getComposition(); + + RealTime eventTime; + Track* track = comp.getTrackById(m_segment->getTrack()); + + // Can't write out if no track + if (!track) { + std::cerr << "AudioSegmentMmapper::dump: ERROR: No track for segment!" + << std::endl; + return ; + } + + timeT segmentStartTime = m_segment->getStartTime(); + timeT segmentEndTime = m_segment->getEndMarkerTime(); + timeT segmentDuration = segmentEndTime - segmentStartTime; + timeT repeatEndTime = segmentEndTime; + + //!!! The repeat count is actually not quite right for audio + // segments -- it returns one too many for repeating segments, + // because in midi segments you want that (to deal with partial + // repeats). Here we really need to find a better way to deal + // with partial repeats... + + int repeatCount = getSegmentRepeatCount(); + if (repeatCount > 0) + repeatEndTime = m_segment->getRepeatEndTime(); + + MappedEvent* bufPos = m_mmappedEventBuffer; + + for (int repeatNo = 0; repeatNo <= repeatCount; ++repeatNo) { + + timeT playTime = + segmentStartTime + repeatNo * segmentDuration; + if (playTime >= repeatEndTime) + break; + + playTime = playTime + m_segment->getDelay(); + eventTime = comp.getElapsedRealTime(playTime); + eventTime = eventTime + m_segment->getRealTimeDelay(); + + RealTime audioStart = m_segment->getAudioStartTime(); + RealTime audioDuration = m_segment->getAudioEndTime() - audioStart; + MappedEvent *mE = + new (bufPos) MappedEvent(track->getInstrument(), // send instrument for audio + m_segment->getAudioFileId(), + eventTime, + audioDuration, + audioStart); + mE->setTrackId(track->getId()); + mE->setRuntimeSegmentId(m_segment->getRuntimeId()); + + // Send the autofade if required + // + if (m_segment->isAutoFading()) { + mE->setAutoFade(true); + mE->setFadeInTime(m_segment->getFadeInTime()); + mE->setFadeOutTime(m_segment->getFadeOutTime()); + std::cout << "AudioSegmentMmapper::dump - " + << "SETTING AUTOFADE " + << "in = " << m_segment->getFadeInTime() + << ", out = " << m_segment->getFadeOutTime() + << std::endl; + } else { + // std::cout << "AudioSegmentMmapper::dump - " + // << "NO AUTOFADE SET ON SEGMENT" << std::endl; + } + + ++bufPos; + } + + *(size_t *)m_mmappedRegion = repeatCount + 1; +} + +size_t AudioSegmentMmapper::computeMmappedSize() +{ + if (!m_segment) return 0; + + int repeatCount = getSegmentRepeatCount(); + + return (repeatCount + 1) * 1 * sizeof(MappedEvent); + // audio segments don't have events, we just need room for 1 MappedEvent +} + +} + |