Mercurial > hg > svcore
view data/model/Dense3DModelPeakCache.cpp @ 1304:7cff8367d9b1 3.0-integration
Add test for last change to ColumnOp
author | Chris Cannam |
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date | Tue, 29 Nov 2016 08:58:50 +0000 |
parents | 9884efa1f88a |
children | f5f83fb49852 |
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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 2009 QMUL. 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 "Dense3DModelPeakCache.h" #include "base/Profiler.h" Dense3DModelPeakCache::Dense3DModelPeakCache(const DenseThreeDimensionalModel *source, int columnsPerPeak) : m_source(source), m_columnsPerPeak(columnsPerPeak) { m_cache = new EditableDenseThreeDimensionalModel (source->getSampleRate(), getResolution(), source->getHeight(), EditableDenseThreeDimensionalModel::NoCompression, false); connect(source, SIGNAL(modelChanged()), this, SLOT(sourceModelChanged())); connect(source, SIGNAL(aboutToBeDeleted()), this, SLOT(sourceModelAboutToBeDeleted())); } Dense3DModelPeakCache::~Dense3DModelPeakCache() { delete m_cache; } Dense3DModelPeakCache::Column Dense3DModelPeakCache::getColumn(int column) const { Profiler profiler("Dense3DModelPeakCache::getColumn"); if (!m_source) return Column(); if (!haveColumn(column)) fillColumn(column); return m_cache->getColumn(column); } float Dense3DModelPeakCache::getValueAt(int column, int n) const { if (!m_source) return 0.f; if (!haveColumn(column)) fillColumn(column); return m_cache->getValueAt(column, n); } void Dense3DModelPeakCache::sourceModelChanged() { if (!m_source) return; if (m_coverage.size() > 0) { // The last peak may have come from an incomplete read, which // may since have been filled, so reset it m_coverage[m_coverage.size()-1] = false; } m_coverage.resize(getWidth(), false); // retaining data } void Dense3DModelPeakCache::sourceModelAboutToBeDeleted() { m_source = 0; } bool Dense3DModelPeakCache::haveColumn(int column) const { return in_range_for(m_coverage, column) && m_coverage[column]; } void Dense3DModelPeakCache::fillColumn(int column) const { Profiler profiler("Dense3DModelPeakCache::fillColumn"); if (!in_range_for(m_coverage, column)) { if (m_coverage.size() > 0) { // The last peak may have come from an incomplete read, which // may since have been filled, so reset it m_coverage[m_coverage.size()-1] = false; } m_coverage.resize(column + 1, false); } int sourceWidth = m_source->getWidth(); Column peak; int n = 0; for (int i = 0; i < m_columnsPerPeak; ++i) { int sourceColumn = column * m_columnsPerPeak + i; if (sourceColumn >= sourceWidth) break; Column here = m_source->getColumn(sourceColumn); // cerr << "Dense3DModelPeakCache::fillColumn(" << column << "): source col " // << sourceColumn << " of " << sourceWidth // << " returned " << here.size() << " elts" << endl; if (i == 0) { peak = here; n = int(peak.size()); } else { int m = std::min(n, int(here.size())); for (int j = 0; j < m; ++j) { peak[j] = std::max(here[j], peak[j]); } } } m_cache->setColumn(column, peak); m_coverage[column] = true; }