Mercurial > hg > svcore
view data/model/Model.cpp @ 335:02d2ad95ea52 spectrogram-cache-rejig
* Get storage advice for each cache in an FFT data server. Allows us to be
more confident about the actual memory situation and cut over from memory
to disc part way through an FFT calculation if necessary. StorageAdviser
is now a bit too optimistic though (it's too keen to allocate large numbers
of small blocks in memory).
author | Chris Cannam |
---|---|
date | Tue, 13 Nov 2007 13:54:10 +0000 |
parents | 1afaf98dbf11 |
children | 516819f2b97b 6f6ab834449d |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 Chris Cannam. 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 "Model.h" #include "AlignmentModel.h" #include "base/PlayParameterRepository.h" #include <QTextStream> #include <iostream> const int Model::COMPLETION_UNKNOWN = -1; Model::~Model() { // std::cerr << "Model::~Model(" << this << ")" << std::endl; if (!m_aboutToDelete) { std::cerr << "NOTE: Model::~Model(" << this << ", \"" << objectName().toStdString() << "\"): Model deleted " << "with no aboutToDelete notification" << std::endl; } if (m_alignment) { m_alignment->aboutToDelete(); delete m_alignment; } // Subclasses have to handle adding themselves to the repository, // if they want to be played. We can't do it from here because // the repository would be unable to tell whether we were playable // or not (because dynamic_cast won't work from the base class ctor) PlayParameterRepository::getInstance()->removeModel(this); } void Model::setSourceModel(Model *model) { if (m_sourceModel) { disconnect(m_sourceModel, SIGNAL(aboutToBeDeleted()), this, SLOT(sourceModelAboutToBeDeleted())); } m_sourceModel = model; if (m_sourceModel) { connect(m_sourceModel, SIGNAL(alignmentCompletionChanged()), this, SIGNAL(alignmentCompletionChanged())); connect(m_sourceModel, SIGNAL(aboutToBeDeleted()), this, SLOT(sourceModelAboutToBeDeleted())); } } void Model::aboutToDelete() { if (m_aboutToDelete) { std::cerr << "WARNING: Model(" << this << ", \"" << objectName().toStdString() << "\")::aboutToDelete: " << "aboutToDelete called more than once for the same model" << std::endl; } emit aboutToBeDeleted(); m_aboutToDelete = true; } void Model::sourceModelAboutToBeDeleted() { m_sourceModel = 0; } void Model::setAlignment(AlignmentModel *alignment) { if (m_alignment) { m_alignment->aboutToDelete(); delete m_alignment; } m_alignment = alignment; connect(m_alignment, SIGNAL(completionChanged()), this, SIGNAL(alignmentCompletionChanged())); } const Model * Model::getAlignmentReference() const { if (!m_alignment) { if (m_sourceModel) return m_sourceModel->getAlignmentReference(); return this; } return m_alignment->getReferenceModel(); } size_t Model::alignToReference(size_t frame) const { if (!m_alignment) { if (m_sourceModel) return m_sourceModel->alignToReference(frame); else return frame; } size_t refFrame = m_alignment->toReference(frame); //!!! this should be totally wrong, but because alignToReference and // alignFromReference are the wrong way around, it's right... *sigh* if (refFrame > getEndFrame()) refFrame = getEndFrame(); return refFrame; } size_t Model::alignFromReference(size_t refFrame) const { if (!m_alignment) { if (m_sourceModel) return m_sourceModel->alignFromReference(refFrame); else return refFrame; } size_t frame = m_alignment->fromReference(refFrame); return frame; } int Model::getAlignmentCompletion() const { // std::cerr << "Model::getAlignmentCompletion" << std::endl; if (!m_alignment) { if (m_sourceModel) return m_sourceModel->getAlignmentCompletion(); else return 100; } int completion = 0; (void)m_alignment->isReady(&completion); // std::cerr << " -> " << completion << std::endl; return completion; } QString Model::getTitle() const { if (m_sourceModel) return m_sourceModel->getTitle(); } QString Model::getMaker() const { if (m_sourceModel) return m_sourceModel->getMaker(); } void Model::toXml(QTextStream &stream, QString indent, QString extraAttributes) const { stream << indent; stream << QString("<model id=\"%1\" name=\"%2\" sampleRate=\"%3\" start=\"%4\" end=\"%5\" %6/>\n") .arg(getObjectExportId(this)) .arg(encodeEntities(objectName())) .arg(getSampleRate()) .arg(getStartFrame()) .arg(getEndFrame()) .arg(extraAttributes); }