Chris@58: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@59:     Sonic Visualiser
Chris@59:     An audio file viewer and annotation editor.
Chris@59:     Centre for Digital Music, Queen Mary, University of London.
Chris@484:     This file copyright 2006-2009 Chris Cannam and QMUL.
Chris@0:     
Chris@59:     This program is free software; you can redistribute it and/or
Chris@59:     modify it under the terms of the GNU General Public License as
Chris@59:     published by the Free Software Foundation; either version 2 of the
Chris@59:     License, or (at your option) any later version.  See the file
Chris@59:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: #include "SpectrogramLayer.h"
Chris@0: 
Chris@128: #include "view/View.h"
Chris@0: #include "base/Profiler.h"
Chris@0: #include "base/AudioLevel.h"
Chris@0: #include "base/Window.h"
Chris@24: #include "base/Pitch.h"
Chris@118: #include "base/Preferences.h"
Chris@167: #include "base/RangeMapper.h"
Chris@253: #include "base/LogRange.h"
Chris@376: #include "widgets/CommandHistory.h"
Chris@376: #include "ColourMapper.h"
Chris@283: #include "ImageRegionFinder.h"
Chris@484: #include "data/model/Dense3DModelPeakCache.h"
Chris@690: #include "PianoScale.h"
Chris@0: 
Chris@0: #include <QPainter>
Chris@0: #include <QImage>
Chris@0: #include <QPixmap>
Chris@0: #include <QRect>
Chris@92: #include <QApplication>
Chris@178: #include <QMessageBox>
Chris@283: #include <QMouseEvent>
Chris@316: #include <QTextStream>
Chris@1017: #include <QSettings>
Chris@0: 
Chris@0: #include <iostream>
Chris@0: 
Chris@0: #include <cassert>
Chris@0: #include <cmath>
Chris@0: 
Chris@545: #ifndef __GNUC__
Chris@545: #include <alloca.h>
Chris@545: #endif
Chris@545: 
Chris@1037: //#define DEBUG_SPECTROGRAM_REPAINT 1
Chris@1025: 
Chris@1025: using namespace std;
Chris@907: 
Chris@44: SpectrogramLayer::SpectrogramLayer(Configuration config) :
Chris@0:     m_model(0),
Chris@0:     m_channel(0),
Chris@0:     m_windowSize(1024),
Chris@0:     m_windowType(HanningWindow),
Chris@97:     m_windowHopLevel(2),
Chris@109:     m_zeroPadLevel(0),
Chris@107:     m_fftSize(1024),
Chris@0:     m_gain(1.0),
Chris@215:     m_initialGain(1.0),
Chris@37:     m_threshold(0.0),
Chris@215:     m_initialThreshold(0.0),
Chris@9:     m_colourRotation(0),
Chris@215:     m_initialRotation(0),
Chris@119:     m_minFrequency(10),
Chris@0:     m_maxFrequency(8000),
Chris@135:     m_initialMaxFrequency(8000),
Chris@0:     m_colourScale(dBColourScale),
Chris@197:     m_colourMap(0),
Chris@0:     m_frequencyScale(LinearFrequencyScale),
Chris@37:     m_binDisplay(AllBins),
Chris@862:     m_normalization(NoNormalization),
Chris@133:     m_lastEmittedZoomStep(-1),
Chris@390:     m_synchronous(false),
Chris@608:     m_haveDetailedScale(false),
Chris@193:     m_exiting(false),
Chris@193:     m_sliceableModel(0)
Chris@0: {
Chris@1017:     QString colourConfigName = "spectrogram-colour";
Chris@1017:     int colourConfigDefault = int(ColourMapper::Green);
Chris@1017:     
Chris@215:     if (config == FullRangeDb) {
Chris@215:         m_initialMaxFrequency = 0;
Chris@215:         setMaxFrequency(0);
Chris@215:     } else if (config == MelodicRange) {
Chris@0: 	setWindowSize(8192);
Chris@97: 	setWindowHopLevel(4);
Chris@215:         m_initialMaxFrequency = 1500;
Chris@215: 	setMaxFrequency(1500);
Chris@215:         setMinFrequency(40);
Chris@0: 	setColourScale(LinearColourScale);
Chris@215:         setColourMap(ColourMapper::Sunset);
Chris@215:         setFrequencyScale(LogFrequencyScale);
Chris@1017:         colourConfigName = "spectrogram-melodic-colour";
Chris@1017:         colourConfigDefault = int(ColourMapper::Sunset);
Chris@224: //        setGain(20);
Chris@37:     } else if (config == MelodicPeaks) {
Chris@37: 	setWindowSize(4096);
Chris@97: 	setWindowHopLevel(5);
Chris@135:         m_initialMaxFrequency = 2000;
Chris@40: 	setMaxFrequency(2000);
Chris@37: 	setMinFrequency(40);
Chris@37: 	setFrequencyScale(LogFrequencyScale);
Chris@215: 	setColourScale(LinearColourScale);
Chris@37: 	setBinDisplay(PeakFrequencies);
Chris@862:         setNormalization(NormalizeColumns);
Chris@1017:         colourConfigName = "spectrogram-melodic-colour";
Chris@1017:         colourConfigDefault = int(ColourMapper::Sunset);
Chris@0:     }
Chris@110: 
Chris@1017:     QSettings settings;
Chris@1017:     settings.beginGroup("Preferences");
Chris@1017:     setColourMap(settings.value(colourConfigName, colourConfigDefault).toInt());
Chris@1017:     settings.endGroup();
Chris@1017:     
Chris@122:     Preferences *prefs = Preferences::getInstance();
Chris@122:     connect(prefs, SIGNAL(propertyChanged(PropertyContainer::PropertyName)),
Chris@122:             this, SLOT(preferenceChanged(PropertyContainer::PropertyName)));
Chris@122:     setWindowType(prefs->getWindowType());
Chris@122: 
Chris@197:     initialisePalette();
Chris@0: }
Chris@0: 
Chris@0: SpectrogramLayer::~SpectrogramLayer()
Chris@0: {
Chris@130:     invalidateFFTModels();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SpectrogramLayer::setModel(const DenseTimeValueModel *model)
Chris@0: {
Chris@682: //    cerr << "SpectrogramLayer(" << this << "): setModel(" << model << ")" << endl;
Chris@34: 
Chris@110:     if (model == m_model) return;
Chris@110: 
Chris@0:     m_model = model;
Chris@130:     invalidateFFTModels();
Chris@0: 
Chris@0:     if (!m_model || !m_model->isOK()) return;
Chris@0: 
Chris@320:     connectSignals(m_model);
Chris@0: 
Chris@0:     connect(m_model, SIGNAL(modelChanged()), this, SLOT(cacheInvalid()));
Chris@906:     connect(m_model, SIGNAL(modelChangedWithin(sv_frame_t, sv_frame_t)),
Chris@906: 	    this, SLOT(cacheInvalid(sv_frame_t, sv_frame_t)));
Chris@0: 
Chris@0:     emit modelReplaced();
Chris@110: }
Chris@115: 
Chris@0: Layer::PropertyList
Chris@0: SpectrogramLayer::getProperties() const
Chris@0: {
Chris@0:     PropertyList list;
Chris@87:     list.push_back("Colour");
Chris@87:     list.push_back("Colour Scale");
Chris@87:     list.push_back("Window Size");
Chris@97:     list.push_back("Window Increment");
Chris@862:     list.push_back("Normalization");
Chris@87:     list.push_back("Bin Display");
Chris@87:     list.push_back("Threshold");
Chris@87:     list.push_back("Gain");
Chris@87:     list.push_back("Colour Rotation");
Chris@153: //    list.push_back("Min Frequency");
Chris@153: //    list.push_back("Max Frequency");
Chris@87:     list.push_back("Frequency Scale");
Chris@153: ////    list.push_back("Zero Padding");
Chris@0:     return list;
Chris@0: }
Chris@0: 
Chris@87: QString
Chris@87: SpectrogramLayer::getPropertyLabel(const PropertyName &name) const
Chris@87: {
Chris@87:     if (name == "Colour") return tr("Colour");
Chris@87:     if (name == "Colour Scale") return tr("Colour Scale");
Chris@87:     if (name == "Window Size") return tr("Window Size");
Chris@112:     if (name == "Window Increment") return tr("Window Overlap");
Chris@862:     if (name == "Normalization") return tr("Normalization");
Chris@87:     if (name == "Bin Display") return tr("Bin Display");
Chris@87:     if (name == "Threshold") return tr("Threshold");
Chris@87:     if (name == "Gain") return tr("Gain");
Chris@87:     if (name == "Colour Rotation") return tr("Colour Rotation");
Chris@87:     if (name == "Min Frequency") return tr("Min Frequency");
Chris@87:     if (name == "Max Frequency") return tr("Max Frequency");
Chris@87:     if (name == "Frequency Scale") return tr("Frequency Scale");
Chris@109:     if (name == "Zero Padding") return tr("Smoothing");
Chris@87:     return "";
Chris@87: }
Chris@87: 
Chris@335: QString
Chris@862: SpectrogramLayer::getPropertyIconName(const PropertyName &) const
Chris@335: {
Chris@335:     return "";
Chris@335: }
Chris@335: 
Chris@0: Layer::PropertyType
Chris@0: SpectrogramLayer::getPropertyType(const PropertyName &name) const
Chris@0: {
Chris@87:     if (name == "Gain") return RangeProperty;
Chris@87:     if (name == "Colour Rotation") return RangeProperty;
Chris@87:     if (name == "Threshold") return RangeProperty;
Chris@109:     if (name == "Zero Padding") return ToggleProperty;
Chris@0:     return ValueProperty;
Chris@0: }
Chris@0: 
Chris@0: QString
Chris@0: SpectrogramLayer::getPropertyGroupName(const PropertyName &name) const
Chris@0: {
Chris@153:     if (name == "Bin Display" ||
Chris@153:         name == "Frequency Scale") return tr("Bins");
Chris@87:     if (name == "Window Size" ||
Chris@109: 	name == "Window Increment" ||
Chris@109:         name == "Zero Padding") return tr("Window");
Chris@87:     if (name == "Colour" ||
Chris@87: 	name == "Threshold" ||
Chris@87: 	name == "Colour Rotation") return tr("Colour");
Chris@862:     if (name == "Normalization" ||
Chris@153:         name == "Gain" ||
Chris@87: 	name == "Colour Scale") return tr("Scale");
Chris@0:     return QString();
Chris@0: }
Chris@0: 
Chris@0: int
Chris@0: SpectrogramLayer::getPropertyRangeAndValue(const PropertyName &name,
Chris@216: 					   int *min, int *max, int *deflt) const
Chris@0: {
Chris@216:     int val = 0;
Chris@216: 
Chris@216:     int garbage0, garbage1, garbage2;
Chris@55:     if (!min) min = &garbage0;
Chris@55:     if (!max) max = &garbage1;
Chris@216:     if (!deflt) deflt = &garbage2;
Chris@10: 
Chris@87:     if (name == "Gain") {
Chris@0: 
Chris@0: 	*min = -50;
Chris@0: 	*max = 50;
Chris@0: 
Chris@906:         *deflt = int(lrint(log10(m_initialGain) * 20.0));
Chris@216: 	if (*deflt < *min) *deflt = *min;
Chris@216: 	if (*deflt > *max) *deflt = *max;
Chris@216: 
Chris@906: 	val = int(lrint(log10(m_gain) * 20.0));
Chris@216: 	if (val < *min) val = *min;
Chris@216: 	if (val > *max) val = *max;
Chris@0: 
Chris@87:     } else if (name == "Threshold") {
Chris@37: 
Chris@37: 	*min = -50;
Chris@37: 	*max = 0;
Chris@37: 
Chris@906:         *deflt = int(lrint(AudioLevel::multiplier_to_dB(m_initialThreshold)));
Chris@216: 	if (*deflt < *min) *deflt = *min;
Chris@216: 	if (*deflt > *max) *deflt = *max;
Chris@216: 
Chris@906: 	val = int(lrint(AudioLevel::multiplier_to_dB(m_threshold)));
Chris@216: 	if (val < *min) val = *min;
Chris@216: 	if (val > *max) val = *max;
Chris@37: 
Chris@87:     } else if (name == "Colour Rotation") {
Chris@9: 
Chris@9: 	*min = 0;
Chris@9: 	*max = 256;
Chris@216:         *deflt = m_initialRotation;
Chris@216: 
Chris@216: 	val = m_colourRotation;
Chris@9: 
Chris@87:     } else if (name == "Colour Scale") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@176: 	*max = 4;
Chris@216:         *deflt = int(dBColourScale);
Chris@216: 
Chris@216: 	val = (int)m_colourScale;
Chris@0: 
Chris@87:     } else if (name == "Colour") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@196: 	*max = ColourMapper::getColourMapCount() - 1;
Chris@216:         *deflt = 0;
Chris@216: 
Chris@216: 	val = m_colourMap;
Chris@0: 
Chris@87:     } else if (name == "Window Size") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@0: 	*max = 10;
Chris@216:         *deflt = 5;
Chris@0: 	
Chris@216: 	val = 0;
Chris@0: 	int ws = m_windowSize;
Chris@216: 	while (ws > 32) { ws >>= 1; val ++; }
Chris@0: 
Chris@97:     } else if (name == "Window Increment") {
Chris@0: 	
Chris@0: 	*min = 0;
Chris@97: 	*max = 5;
Chris@216:         *deflt = 2;
Chris@216: 
Chris@216:         val = m_windowHopLevel;
Chris@0:     
Chris@109:     } else if (name == "Zero Padding") {
Chris@109: 	
Chris@109: 	*min = 0;
Chris@109: 	*max = 1;
Chris@216:         *deflt = 0;
Chris@109: 	
Chris@216:         val = m_zeroPadLevel > 0 ? 1 : 0;
Chris@109:     
Chris@87:     } else if (name == "Min Frequency") {
Chris@37: 
Chris@37: 	*min = 0;
Chris@37: 	*max = 9;
Chris@216:         *deflt = 1;
Chris@37: 
Chris@37: 	switch (m_minFrequency) {
Chris@216: 	case 0: default: val = 0; break;
Chris@216: 	case 10: val = 1; break;
Chris@216: 	case 20: val = 2; break;
Chris@216: 	case 40: val = 3; break;
Chris@216: 	case 100: val = 4; break;
Chris@216: 	case 250: val = 5; break;
Chris@216: 	case 500: val = 6; break;
Chris@216: 	case 1000: val = 7; break;
Chris@216: 	case 4000: val = 8; break;
Chris@216: 	case 10000: val = 9; break;
Chris@37: 	}
Chris@37:     
Chris@87:     } else if (name == "Max Frequency") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@0: 	*max = 9;
Chris@216:         *deflt = 6;
Chris@0: 
Chris@0: 	switch (m_maxFrequency) {
Chris@216: 	case 500: val = 0; break;
Chris@216: 	case 1000: val = 1; break;
Chris@216: 	case 1500: val = 2; break;
Chris@216: 	case 2000: val = 3; break;
Chris@216: 	case 4000: val = 4; break;
Chris@216: 	case 6000: val = 5; break;
Chris@216: 	case 8000: val = 6; break;
Chris@216: 	case 12000: val = 7; break;
Chris@216: 	case 16000: val = 8; break;
Chris@216: 	default: val = 9; break;
Chris@0: 	}
Chris@0: 
Chris@87:     } else if (name == "Frequency Scale") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@0: 	*max = 1;
Chris@216:         *deflt = int(LinearFrequencyScale);
Chris@216: 	val = (int)m_frequencyScale;
Chris@0: 
Chris@87:     } else if (name == "Bin Display") {
Chris@35: 
Chris@35: 	*min = 0;
Chris@35: 	*max = 2;
Chris@216:         *deflt = int(AllBins);
Chris@216: 	val = (int)m_binDisplay;
Chris@35: 
Chris@862:     } else if (name == "Normalization") {
Chris@36: 	
Chris@862:         *min = 0;
Chris@862:         *max = 3;
Chris@862:         *deflt = int(NoNormalization);
Chris@862:         val = (int)m_normalization;
Chris@120: 
Chris@0:     } else {
Chris@216: 	val = Layer::getPropertyRangeAndValue(name, min, max, deflt);
Chris@0:     }
Chris@0: 
Chris@216:     return val;
Chris@0: }
Chris@0: 
Chris@0: QString
Chris@0: SpectrogramLayer::getPropertyValueLabel(const PropertyName &name,
Chris@9: 					int value) const
Chris@0: {
Chris@87:     if (name == "Colour") {
Chris@196:         return ColourMapper::getColourMapName(value);
Chris@0:     }
Chris@87:     if (name == "Colour Scale") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@37: 	case 0: return tr("Linear");
Chris@37: 	case 1: return tr("Meter");
Chris@215: 	case 2: return tr("dBV^2");
Chris@215: 	case 3: return tr("dBV");
Chris@119: 	case 4: return tr("Phase");
Chris@0: 	}
Chris@0:     }
Chris@862:     if (name == "Normalization") {
Chris@862:         return ""; // icon only
Chris@862:     }
Chris@87:     if (name == "Window Size") {
Chris@0: 	return QString("%1").arg(32 << value);
Chris@0:     }
Chris@97:     if (name == "Window Increment") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@112: 	case 0: return tr("None");
Chris@112: 	case 1: return tr("25 %");
Chris@112: 	case 2: return tr("50 %");
Chris@112: 	case 3: return tr("75 %");
Chris@112: 	case 4: return tr("87.5 %");
Chris@112: 	case 5: return tr("93.75 %");
Chris@0: 	}
Chris@0:     }
Chris@109:     if (name == "Zero Padding") {
Chris@109:         if (value == 0) return tr("None");
Chris@109:         return QString("%1x").arg(value + 1);
Chris@109:     }
Chris@87:     if (name == "Min Frequency") {
Chris@37: 	switch (value) {
Chris@37: 	default:
Chris@38: 	case 0: return tr("No min");
Chris@37: 	case 1: return tr("10 Hz");
Chris@37: 	case 2: return tr("20 Hz");
Chris@37: 	case 3: return tr("40 Hz");
Chris@37: 	case 4: return tr("100 Hz");
Chris@37: 	case 5: return tr("250 Hz");
Chris@37: 	case 6: return tr("500 Hz");
Chris@37: 	case 7: return tr("1 KHz");
Chris@37: 	case 8: return tr("4 KHz");
Chris@37: 	case 9: return tr("10 KHz");
Chris@37: 	}
Chris@37:     }
Chris@87:     if (name == "Max Frequency") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@0: 	case 0: return tr("500 Hz");
Chris@0: 	case 1: return tr("1 KHz");
Chris@0: 	case 2: return tr("1.5 KHz");
Chris@0: 	case 3: return tr("2 KHz");
Chris@0: 	case 4: return tr("4 KHz");
Chris@0: 	case 5: return tr("6 KHz");
Chris@0: 	case 6: return tr("8 KHz");
Chris@0: 	case 7: return tr("12 KHz");
Chris@0: 	case 8: return tr("16 KHz");
Chris@38: 	case 9: return tr("No max");
Chris@0: 	}
Chris@0:     }
Chris@87:     if (name == "Frequency Scale") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@0: 	case 0: return tr("Linear");
Chris@0: 	case 1: return tr("Log");
Chris@0: 	}
Chris@0:     }
Chris@87:     if (name == "Bin Display") {
Chris@35: 	switch (value) {
Chris@35: 	default:
Chris@37: 	case 0: return tr("All Bins");
Chris@37: 	case 1: return tr("Peak Bins");
Chris@37: 	case 2: return tr("Frequencies");
Chris@35: 	}
Chris@35:     }
Chris@0:     return tr("<unknown>");
Chris@0: }
Chris@0: 
Chris@862: QString
Chris@862: SpectrogramLayer::getPropertyValueIconName(const PropertyName &name,
Chris@862:                                            int value) const
Chris@862: {
Chris@862:     if (name == "Normalization") {
Chris@862:         switch(value) {
Chris@862:         default:
Chris@862:         case 0: return "normalise-none";
Chris@862:         case 1: return "normalise-columns";
Chris@862:         case 2: return "normalise";
Chris@862:         case 3: return "normalise-hybrid";
Chris@862:         }
Chris@862:     }
Chris@862:     return "";
Chris@862: }
Chris@862: 
Chris@167: RangeMapper *
Chris@167: SpectrogramLayer::getNewPropertyRangeMapper(const PropertyName &name) const
Chris@167: {
Chris@167:     if (name == "Gain") {
Chris@167:         return new LinearRangeMapper(-50, 50, -25, 25, tr("dB"));
Chris@167:     }
Chris@167:     if (name == "Threshold") {
Chris@167:         return new LinearRangeMapper(-50, 0, -50, 0, tr("dB"));
Chris@167:     }
Chris@167:     return 0;
Chris@167: }
Chris@167: 
Chris@0: void
Chris@0: SpectrogramLayer::setProperty(const PropertyName &name, int value)
Chris@0: {
Chris@87:     if (name == "Gain") {
Chris@906: 	setGain(float(pow(10, float(value)/20.0)));
Chris@87:     } else if (name == "Threshold") {
Chris@37: 	if (value == -50) setThreshold(0.0);
Chris@906: 	else setThreshold(float(AudioLevel::dB_to_multiplier(value)));
Chris@87:     } else if (name == "Colour Rotation") {
Chris@9: 	setColourRotation(value);
Chris@87:     } else if (name == "Colour") {
Chris@197:         setColourMap(value);
Chris@87:     } else if (name == "Window Size") {
Chris@0: 	setWindowSize(32 << value);
Chris@97:     } else if (name == "Window Increment") {
Chris@97:         setWindowHopLevel(value);
Chris@109:     } else if (name == "Zero Padding") {
Chris@109:         setZeroPadLevel(value > 0.1 ? 3 : 0);
Chris@87:     } else if (name == "Min Frequency") {
Chris@37: 	switch (value) {
Chris@37: 	default:
Chris@37: 	case 0: setMinFrequency(0); break;
Chris@37: 	case 1: setMinFrequency(10); break;
Chris@37: 	case 2: setMinFrequency(20); break;
Chris@37: 	case 3: setMinFrequency(40); break;
Chris@37: 	case 4: setMinFrequency(100); break;
Chris@37: 	case 5: setMinFrequency(250); break;
Chris@37: 	case 6: setMinFrequency(500); break;
Chris@37: 	case 7: setMinFrequency(1000); break;
Chris@37: 	case 8: setMinFrequency(4000); break;
Chris@37: 	case 9: setMinFrequency(10000); break;
Chris@37: 	}
Chris@133:         int vs = getCurrentVerticalZoomStep();
Chris@133:         if (vs != m_lastEmittedZoomStep) {
Chris@133:             emit verticalZoomChanged();
Chris@133:             m_lastEmittedZoomStep = vs;
Chris@133:         }
Chris@87:     } else if (name == "Max Frequency") {
Chris@0: 	switch (value) {
Chris@0: 	case 0: setMaxFrequency(500); break;
Chris@0: 	case 1: setMaxFrequency(1000); break;
Chris@0: 	case 2: setMaxFrequency(1500); break;
Chris@0: 	case 3: setMaxFrequency(2000); break;
Chris@0: 	case 4: setMaxFrequency(4000); break;
Chris@0: 	case 5: setMaxFrequency(6000); break;
Chris@0: 	case 6: setMaxFrequency(8000); break;
Chris@0: 	case 7: setMaxFrequency(12000); break;
Chris@0: 	case 8: setMaxFrequency(16000); break;
Chris@0: 	default:
Chris@0: 	case 9: setMaxFrequency(0); break;
Chris@0: 	}
Chris@133:         int vs = getCurrentVerticalZoomStep();
Chris@133:         if (vs != m_lastEmittedZoomStep) {
Chris@133:             emit verticalZoomChanged();
Chris@133:             m_lastEmittedZoomStep = vs;
Chris@133:         }
Chris@87:     } else if (name == "Colour Scale") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@0: 	case 0: setColourScale(LinearColourScale); break;
Chris@0: 	case 1: setColourScale(MeterColourScale); break;
Chris@215: 	case 2: setColourScale(dBSquaredColourScale); break;
Chris@215: 	case 3: setColourScale(dBColourScale); break;
Chris@119: 	case 4: setColourScale(PhaseColourScale); break;
Chris@0: 	}
Chris@87:     } else if (name == "Frequency Scale") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@0: 	case 0: setFrequencyScale(LinearFrequencyScale); break;
Chris@0: 	case 1: setFrequencyScale(LogFrequencyScale); break;
Chris@0: 	}
Chris@87:     } else if (name == "Bin Display") {
Chris@35: 	switch (value) {
Chris@35: 	default:
Chris@37: 	case 0: setBinDisplay(AllBins); break;
Chris@37: 	case 1: setBinDisplay(PeakBins); break;
Chris@37: 	case 2: setBinDisplay(PeakFrequencies); break;
Chris@35: 	}
Chris@862:     } else if (name == "Normalization") {
Chris@862:         switch (value) {
Chris@862:         default:
Chris@862:         case 0: setNormalization(NoNormalization); break;
Chris@862:         case 1: setNormalization(NormalizeColumns); break;
Chris@862:         case 2: setNormalization(NormalizeVisibleArea); break;
Chris@862:         case 3: setNormalization(NormalizeHybrid); break;
Chris@862:         }
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@478: SpectrogramLayer::invalidateImageCaches()
Chris@95: {
Chris@478:     for (ViewImageCache::iterator i = m_imageCaches.begin();
Chris@478:          i != m_imageCaches.end(); ++i) {
Chris@1030:         i->second.invalidate();
Chris@95:     }
Chris@95: }
Chris@95: 
Chris@95: void
Chris@122: SpectrogramLayer::preferenceChanged(PropertyContainer::PropertyName name)
Chris@122: {
Chris@587:     SVDEBUG << "SpectrogramLayer::preferenceChanged(" << name << ")" << endl;
Chris@122: 
Chris@122:     if (name == "Window Type") {
Chris@122:         setWindowType(Preferences::getInstance()->getWindowType());
Chris@122:         return;
Chris@122:     }
Chris@490:     if (name == "Spectrogram Y Smoothing") {
Chris@490:         invalidateImageCaches();
Chris@490:         invalidateMagnitudes();
Chris@490:         emit layerParametersChanged();
Chris@490:     }
Chris@490:     if (name == "Spectrogram X Smoothing") {
Chris@478:         invalidateImageCaches();
Chris@122:         invalidateMagnitudes();
Chris@122:         emit layerParametersChanged();
Chris@122:     }
Chris@122:     if (name == "Tuning Frequency") {
Chris@122:         emit layerParametersChanged();
Chris@122:     }
Chris@122: }
Chris@122: 
Chris@122: void
Chris@0: SpectrogramLayer::setChannel(int ch)
Chris@0: {
Chris@0:     if (m_channel == ch) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     m_channel = ch;
Chris@130:     invalidateFFTModels();
Chris@9: 
Chris@0:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: int
Chris@0: SpectrogramLayer::getChannel() const
Chris@0: {
Chris@0:     return m_channel;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@805: SpectrogramLayer::setWindowSize(int ws)
Chris@0: {
Chris@0:     if (m_windowSize == ws) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     
Chris@0:     m_windowSize = ws;
Chris@109:     m_fftSize = ws * (m_zeroPadLevel + 1);
Chris@0:     
Chris@130:     invalidateFFTModels();
Chris@9: 
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@805: int
Chris@0: SpectrogramLayer::getWindowSize() const
Chris@0: {
Chris@0:     return m_windowSize;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@805: SpectrogramLayer::setWindowHopLevel(int v)
Chris@0: {
Chris@97:     if (m_windowHopLevel == v) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     
Chris@97:     m_windowHopLevel = v;
Chris@0:     
Chris@130:     invalidateFFTModels();
Chris@9: 
Chris@9:     emit layerParametersChanged();
Chris@9: 
Chris@110: //    fillCache();
Chris@0: }
Chris@0: 
Chris@805: int
Chris@97: SpectrogramLayer::getWindowHopLevel() const
Chris@0: {
Chris@97:     return m_windowHopLevel;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@805: SpectrogramLayer::setZeroPadLevel(int v)
Chris@109: {
Chris@109:     if (m_zeroPadLevel == v) return;
Chris@109: 
Chris@478:     invalidateImageCaches();
Chris@109:     
Chris@109:     m_zeroPadLevel = v;
Chris@109:     m_fftSize = m_windowSize * (v + 1);
Chris@110: 
Chris@130:     invalidateFFTModels();
Chris@109: 
Chris@109:     emit layerParametersChanged();
Chris@109: }
Chris@109: 
Chris@805: int
Chris@109: SpectrogramLayer::getZeroPadLevel() const
Chris@109: {
Chris@109:     return m_zeroPadLevel;
Chris@109: }
Chris@109: 
Chris@109: void
Chris@0: SpectrogramLayer::setWindowType(WindowType w)
Chris@0: {
Chris@0:     if (m_windowType == w) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     
Chris@0:     m_windowType = w;
Chris@110: 
Chris@130:     invalidateFFTModels();
Chris@9: 
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: WindowType
Chris@0: SpectrogramLayer::getWindowType() const
Chris@0: {
Chris@0:     return m_windowType;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SpectrogramLayer::setGain(float gain)
Chris@0: {
Chris@587: //    SVDEBUG << "SpectrogramLayer::setGain(" << gain << ") (my gain is now "
Chris@585: //	      << m_gain << ")" << endl;
Chris@55: 
Chris@40:     if (m_gain == gain) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     
Chris@0:     m_gain = gain;
Chris@0:     
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: float
Chris@0: SpectrogramLayer::getGain() const
Chris@0: {
Chris@0:     return m_gain;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@37: SpectrogramLayer::setThreshold(float threshold)
Chris@37: {
Chris@40:     if (m_threshold == threshold) return;
Chris@37: 
Chris@478:     invalidateImageCaches();
Chris@37:     
Chris@37:     m_threshold = threshold;
Chris@37: 
Chris@37:     emit layerParametersChanged();
Chris@37: }
Chris@37: 
Chris@37: float
Chris@37: SpectrogramLayer::getThreshold() const
Chris@37: {
Chris@37:     return m_threshold;
Chris@37: }
Chris@37: 
Chris@37: void
Chris@805: SpectrogramLayer::setMinFrequency(int mf)
Chris@37: {
Chris@37:     if (m_minFrequency == mf) return;
Chris@37: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::setMinFrequency: " << mf << endl;
Chris@187: 
Chris@478:     invalidateImageCaches();
Chris@119:     invalidateMagnitudes();
Chris@37:     
Chris@37:     m_minFrequency = mf;
Chris@37: 
Chris@37:     emit layerParametersChanged();
Chris@37: }
Chris@37: 
Chris@805: int
Chris@37: SpectrogramLayer::getMinFrequency() const
Chris@37: {
Chris@37:     return m_minFrequency;
Chris@37: }
Chris@37: 
Chris@37: void
Chris@805: SpectrogramLayer::setMaxFrequency(int mf)
Chris@0: {
Chris@0:     if (m_maxFrequency == mf) return;
Chris@0: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::setMaxFrequency: " << mf << endl;
Chris@187: 
Chris@478:     invalidateImageCaches();
Chris@119:     invalidateMagnitudes();
Chris@0:     
Chris@0:     m_maxFrequency = mf;
Chris@0:     
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@805: int
Chris@0: SpectrogramLayer::getMaxFrequency() const
Chris@0: {
Chris@0:     return m_maxFrequency;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@9: SpectrogramLayer::setColourRotation(int r)
Chris@9: {
Chris@478:     invalidateImageCaches();
Chris@9: 
Chris@9:     if (r < 0) r = 0;
Chris@9:     if (r > 256) r = 256;
Chris@9:     int distance = r - m_colourRotation;
Chris@9: 
Chris@9:     if (distance != 0) {
Chris@197: 	rotatePalette(-distance);
Chris@9: 	m_colourRotation = r;
Chris@9:     }
Chris@9:     
Chris@9:     emit layerParametersChanged();
Chris@9: }
Chris@9: 
Chris@9: void
Chris@0: SpectrogramLayer::setColourScale(ColourScale colourScale)
Chris@0: {
Chris@0:     if (m_colourScale == colourScale) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     
Chris@0:     m_colourScale = colourScale;
Chris@0:     
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: SpectrogramLayer::ColourScale
Chris@0: SpectrogramLayer::getColourScale() const
Chris@0: {
Chris@0:     return m_colourScale;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@197: SpectrogramLayer::setColourMap(int map)
Chris@0: {
Chris@197:     if (m_colourMap == map) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     
Chris@197:     m_colourMap = map;
Chris@197:     initialisePalette();
Chris@9: 
Chris@0:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@196: int
Chris@197: SpectrogramLayer::getColourMap() const
Chris@0: {
Chris@197:     return m_colourMap;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SpectrogramLayer::setFrequencyScale(FrequencyScale frequencyScale)
Chris@0: {
Chris@0:     if (m_frequencyScale == frequencyScale) return;
Chris@0: 
Chris@478:     invalidateImageCaches();
Chris@0:     m_frequencyScale = frequencyScale;
Chris@9: 
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: SpectrogramLayer::FrequencyScale
Chris@0: SpectrogramLayer::getFrequencyScale() const
Chris@0: {
Chris@0:     return m_frequencyScale;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@37: SpectrogramLayer::setBinDisplay(BinDisplay binDisplay)
Chris@35: {
Chris@37:     if (m_binDisplay == binDisplay) return;
Chris@35: 
Chris@478:     invalidateImageCaches();
Chris@37:     m_binDisplay = binDisplay;
Chris@35: 
Chris@35:     emit layerParametersChanged();
Chris@35: }
Chris@35: 
Chris@37: SpectrogramLayer::BinDisplay
Chris@37: SpectrogramLayer::getBinDisplay() const
Chris@35: {
Chris@37:     return m_binDisplay;
Chris@35: }
Chris@35: 
Chris@35: void
Chris@862: SpectrogramLayer::setNormalization(Normalization n)
Chris@36: {
Chris@862:     if (m_normalization == n) return;
Chris@36: 
Chris@478:     invalidateImageCaches();
Chris@119:     invalidateMagnitudes();
Chris@862:     m_normalization = n;
Chris@36: 
Chris@36:     emit layerParametersChanged();
Chris@36: }
Chris@36: 
Chris@862: SpectrogramLayer::Normalization
Chris@862: SpectrogramLayer::getNormalization() const
Chris@36: {
Chris@862:     return m_normalization;
Chris@36: }
Chris@36: 
Chris@36: void
Chris@918: SpectrogramLayer::setLayerDormant(const LayerGeometryProvider *v, bool dormant)
Chris@29: {
Chris@33:     if (dormant) {
Chris@33: 
Chris@331: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:         cerr << "SpectrogramLayer::setLayerDormant(" << dormant << ")"
Chris@585:                   << endl;
Chris@331: #endif
Chris@331: 
Chris@131:         if (isLayerDormant(v)) {
Chris@131:             return;
Chris@131:         }
Chris@131: 
Chris@131:         Layer::setLayerDormant(v, true);
Chris@33: 
Chris@920:         const View *view = v->getView();
Chris@920:         
Chris@478: 	invalidateImageCaches();
Chris@988: 
Chris@1030:         m_imageCaches.erase(view->getId());
Chris@1030: 
Chris@1030:         if (m_fftModels.find(view->getId()) != m_fftModels.end()) {
Chris@1030: 
Chris@1030:             if (m_sliceableModel == m_fftModels[view->getId()]) {
Chris@193:                 bool replaced = false;
Chris@193:                 for (ViewFFTMap::iterator i = m_fftModels.begin();
Chris@193:                      i != m_fftModels.end(); ++i) {
Chris@985:                     if (i->second != m_sliceableModel) {
Chris@985:                         emit sliceableModelReplaced(m_sliceableModel, i->second);
Chris@193:                         replaced = true;
Chris@193:                         break;
Chris@193:                     }
Chris@193:                 }
Chris@193:                 if (!replaced) emit sliceableModelReplaced(m_sliceableModel, 0);
Chris@193:             }
Chris@193: 
Chris@1030:             delete m_fftModels[view->getId()];
Chris@1030:             m_fftModels.erase(view->getId());
Chris@1030: 
Chris@1030:             delete m_peakCaches[view->getId()];
Chris@1030:             m_peakCaches.erase(view->getId());
Chris@114:         }
Chris@33: 	
Chris@33:     } else {
Chris@33: 
Chris@131:         Layer::setLayerDormant(v, false);
Chris@33:     }
Chris@29: }
Chris@29: 
Chris@29: void
Chris@0: SpectrogramLayer::cacheInvalid()
Chris@0: {
Chris@391: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:     cerr << "SpectrogramLayer::cacheInvalid()" << endl;
Chris@391: #endif
Chris@391: 
Chris@478:     invalidateImageCaches();
Chris@119:     invalidateMagnitudes();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@1037: SpectrogramLayer::cacheInvalid(
Chris@1037: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1037:     sv_frame_t from, sv_frame_t to
Chris@1037: #else 
Chris@1037:     sv_frame_t     , sv_frame_t
Chris@1037: #endif
Chris@1037:     )
Chris@0: {
Chris@391: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:     cerr << "SpectrogramLayer::cacheInvalid(" << from << ", " << to << ")" << endl;
Chris@391: #endif
Chris@391: 
Chris@1030:     // We used to call invalidateMagnitudes(from, to) to invalidate
Chris@1030:     // only those caches whose views contained some of the (from, to)
Chris@1030:     // range. That's the right thing to do; it has been lost in
Chris@1030:     // pulling out the image cache code, but it might not matter very
Chris@1030:     // much, since the underlying models for spectrogram layers don't
Chris@1030:     // change very often. Let's see.
Chris@1030:     invalidateImageCaches();
Chris@391:     invalidateMagnitudes();
Chris@0: }
Chris@0: 
Chris@224: bool
Chris@224: SpectrogramLayer::hasLightBackground() const 
Chris@224: {
Chris@287:     return ColourMapper(m_colourMap, 1.f, 255.f).hasLightBackground();
Chris@224: }
Chris@224: 
Chris@0: void
Chris@197: SpectrogramLayer::initialisePalette()
Chris@0: {
Chris@10:     int formerRotation = m_colourRotation;
Chris@10: 
Chris@197:     if (m_colourMap == (int)ColourMapper::BlackOnWhite) {
Chris@197: 	m_palette.setColour(NO_VALUE, Qt::white);
Chris@38:     } else {
Chris@197: 	m_palette.setColour(NO_VALUE, Qt::black);
Chris@38:     }
Chris@0: 
Chris@197:     ColourMapper mapper(m_colourMap, 1.f, 255.f);
Chris@196:     
Chris@0:     for (int pixel = 1; pixel < 256; ++pixel) {
Chris@907:         m_palette.setColour((unsigned char)pixel, mapper.map(pixel));
Chris@0:     }
Chris@9: 
Chris@196:     m_crosshairColour = mapper.getContrastingColour();
Chris@196: 
Chris@9:     m_colourRotation = 0;
Chris@197:     rotatePalette(m_colourRotation - formerRotation);
Chris@10:     m_colourRotation = formerRotation;
Chris@478: 
Chris@478:     m_drawBuffer = QImage();
Chris@9: }
Chris@9: 
Chris@9: void
Chris@197: SpectrogramLayer::rotatePalette(int distance)
Chris@9: {
Chris@31:     QColor newPixels[256];
Chris@9: 
Chris@197:     newPixels[NO_VALUE] = m_palette.getColour(NO_VALUE);
Chris@9: 
Chris@9:     for (int pixel = 1; pixel < 256; ++pixel) {
Chris@9: 	int target = pixel + distance;
Chris@9: 	while (target < 1) target += 255;
Chris@9: 	while (target > 255) target -= 255;
Chris@907: 	newPixels[target] = m_palette.getColour((unsigned char)pixel);
Chris@9:     }
Chris@9: 
Chris@9:     for (int pixel = 0; pixel < 256; ++pixel) {
Chris@907: 	m_palette.setColour((unsigned char)pixel, newPixels[pixel]);
Chris@9:     }
Chris@478: 
Chris@478:     m_drawBuffer = QImage();
Chris@0: }
Chris@0: 
Chris@38: unsigned char
Chris@918: SpectrogramLayer::getDisplayValue(LayerGeometryProvider *v, double input) const
Chris@38: {
Chris@38:     int value;
Chris@37: 
Chris@907:     double min = 0.0;
Chris@907:     double max = 1.0;
Chris@120: 
Chris@862:     if (m_normalization == NormalizeVisibleArea) {
Chris@1030:         min = m_viewMags[v->getId()].getMin();
Chris@1030:         max = m_viewMags[v->getId()].getMax();
Chris@862:     } else if (m_normalization != NormalizeColumns) {
Chris@224:         if (m_colourScale == LinearColourScale //||
Chris@224: //            m_colourScale == MeterColourScale) {
Chris@224:             ) {
Chris@907:             max = 0.1;
Chris@120:         }
Chris@120:     }
Chris@120: 
Chris@907:     double thresh = -80.0;
Chris@907: 
Chris@907:     if (max == 0.0) max = 1.0;
Chris@907:     if (max == min) min = max - 0.0001;
Chris@119: 
Chris@40:     switch (m_colourScale) {
Chris@40: 	
Chris@40:     default:
Chris@40:     case LinearColourScale:
Chris@907:         value = int(((input - min) / (max - min)) * 255.0) + 1;
Chris@40: 	break;
Chris@40: 	
Chris@40:     case MeterColourScale:
Chris@210:         value = AudioLevel::multiplier_to_preview
Chris@210:             ((input - min) / (max - min), 254) + 1;
Chris@40: 	break;
Chris@119: 
Chris@210:     case dBSquaredColourScale:
Chris@215:         input = ((input - min) * (input - min)) / ((max - min) * (max - min));
Chris@907:         if (input > 0.0) {
Chris@907:             input = 10.0 * log10(input);
Chris@133:         } else {
Chris@133:             input = thresh;
Chris@133:         }
Chris@907:         if (min > 0.0) {
Chris@907:             thresh = 10.0 * log10(min * min);
Chris@907:             if (thresh < -80.0) thresh = -80.0;
Chris@119:         }
Chris@119: 	input = (input - thresh) / (-thresh);
Chris@907: 	if (input < 0.0) input = 0.0;
Chris@907: 	if (input > 1.0) input = 1.0;
Chris@907: 	value = int(input * 255.0) + 1;
Chris@119: 	break;
Chris@40: 	
Chris@215:     case dBColourScale:
Chris@215:         //!!! experiment with normalizing the visible area this way.
Chris@215:         //In any case, we need to have some indication of what the dB
Chris@215:         //scale is relative to.
Chris@215:         input = (input - min) / (max - min);
Chris@907:         if (input > 0.0) {
Chris@907:             input = 10.0 * log10(input);
Chris@215:         } else {
Chris@215:             input = thresh;
Chris@215:         }
Chris@907:         if (min > 0.0) {
Chris@907:             thresh = 10.0 * log10(min);
Chris@907:             if (thresh < -80.0) thresh = -80.0;
Chris@215:         }
Chris@215: 	input = (input - thresh) / (-thresh);
Chris@907: 	if (input < 0.0) input = 0.0;
Chris@907: 	if (input > 1.0) input = 1.0;
Chris@907: 	value = int(input * 255.0) + 1;
Chris@215: 	break;
Chris@215: 	
Chris@40:     case PhaseColourScale:
Chris@40: 	value = int((input * 127.0 / M_PI) + 128);
Chris@40: 	break;
Chris@0:     }
Chris@210: 
Chris@38:     if (value > UCHAR_MAX) value = UCHAR_MAX;
Chris@38:     if (value < 0) value = 0;
Chris@907:     return (unsigned char)value;
Chris@0: }
Chris@0: 
Chris@905: double
Chris@40: SpectrogramLayer::getEffectiveMinFrequency() const
Chris@40: {
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@905:     double minf = double(sr) / m_fftSize;
Chris@40: 
Chris@40:     if (m_minFrequency > 0.0) {
Chris@805: 	int minbin = int((double(m_minFrequency) * m_fftSize) / sr + 0.01);
Chris@40: 	if (minbin < 1) minbin = 1;
Chris@107: 	minf = minbin * sr / m_fftSize;
Chris@40:     }
Chris@40: 
Chris@40:     return minf;
Chris@40: }
Chris@40: 
Chris@905: double
Chris@40: SpectrogramLayer::getEffectiveMaxFrequency() const
Chris@40: {
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@905:     double maxf = double(sr) / 2;
Chris@40: 
Chris@40:     if (m_maxFrequency > 0.0) {
Chris@805: 	int maxbin = int((double(m_maxFrequency) * m_fftSize) / sr + 0.1);
Chris@107: 	if (maxbin > m_fftSize / 2) maxbin = m_fftSize / 2;
Chris@107: 	maxf = maxbin * sr / m_fftSize;
Chris@40:     }
Chris@40: 
Chris@40:     return maxf;
Chris@40: }
Chris@40: 
Chris@0: bool
Chris@918: SpectrogramLayer::getYBinRange(LayerGeometryProvider *v, int y, double &q0, double &q1) const
Chris@0: {
Chris@382:     Profiler profiler("SpectrogramLayer::getYBinRange");
Chris@382:     
Chris@918:     int h = v->getPaintHeight();
Chris@0:     if (y < 0 || y >= h) return false;
Chris@0: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@905:     double minf = getEffectiveMinFrequency();
Chris@905:     double maxf = getEffectiveMaxFrequency();
Chris@0: 
Chris@38:     bool logarithmic = (m_frequencyScale == LogFrequencyScale);
Chris@38: 
Chris@44:     q0 = v->getFrequencyForY(y, minf, maxf, logarithmic);
Chris@44:     q1 = v->getFrequencyForY(y - 1, minf, maxf, logarithmic);
Chris@38: 
Chris@490:     // Now map these on to ("proportions of") actual bins, using raw
Chris@490:     // FFT size (unsmoothed)
Chris@490: 
Chris@490:     q0 = (q0 * m_fftSize) / sr;
Chris@490:     q1 = (q1 * m_fftSize) / sr;
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@486: 
Chris@486: bool
Chris@918: SpectrogramLayer::getSmoothedYBinRange(LayerGeometryProvider *v, int y, double &q0, double &q1) const
Chris@486: {
Chris@486:     Profiler profiler("SpectrogramLayer::getSmoothedYBinRange");
Chris@486: 
Chris@918:     int h = v->getPaintHeight();
Chris@486:     if (y < 0 || y >= h) return false;
Chris@486: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@905:     double minf = getEffectiveMinFrequency();
Chris@905:     double maxf = getEffectiveMaxFrequency();
Chris@486: 
Chris@486:     bool logarithmic = (m_frequencyScale == LogFrequencyScale);
Chris@486: 
Chris@486:     q0 = v->getFrequencyForY(y, minf, maxf, logarithmic);
Chris@486:     q1 = v->getFrequencyForY(y - 1, minf, maxf, logarithmic);
Chris@486: 
Chris@490:     // Now map these on to ("proportions of") actual bins, using raw
Chris@490:     // FFT size (unsmoothed)
Chris@490: 
Chris@490:     q0 = (q0 * getFFTSize(v)) / sr;
Chris@490:     q1 = (q1 * getFFTSize(v)) / sr;
Chris@486: 
Chris@486:     return true;
Chris@486: }
Chris@38:     
Chris@0: bool
Chris@918: SpectrogramLayer::getXBinRange(LayerGeometryProvider *v, int x, double &s0, double &s1) const
Chris@0: {
Chris@907:     sv_frame_t modelStart = m_model->getStartFrame();
Chris@907:     sv_frame_t modelEnd = m_model->getEndFrame();
Chris@0: 
Chris@0:     // Each pixel column covers an exact range of sample frames:
Chris@907:     sv_frame_t f0 = v->getFrameForX(x) - modelStart;
Chris@907:     sv_frame_t f1 = v->getFrameForX(x + 1) - modelStart - 1;
Chris@20: 
Chris@41:     if (f1 < int(modelStart) || f0 > int(modelEnd)) {
Chris@41: 	return false;
Chris@41:     }
Chris@20:       
Chris@0:     // And that range may be drawn from a possibly non-integral
Chris@0:     // range of spectrogram windows:
Chris@0: 
Chris@805:     int windowIncrement = getWindowIncrement();
Chris@905:     s0 = double(f0) / windowIncrement;
Chris@905:     s1 = double(f1) / windowIncrement;
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0:  
Chris@0: bool
Chris@918: SpectrogramLayer::getXBinSourceRange(LayerGeometryProvider *v, int x, RealTime &min, RealTime &max) const
Chris@0: {
Chris@905:     double s0 = 0, s1 = 0;
Chris@44:     if (!getXBinRange(v, x, s0, s1)) return false;
Chris@0:     
Chris@0:     int s0i = int(s0 + 0.001);
Chris@0:     int s1i = int(s1);
Chris@0: 
Chris@0:     int windowIncrement = getWindowIncrement();
Chris@0:     int w0 = s0i * windowIncrement - (m_windowSize - windowIncrement)/2;
Chris@0:     int w1 = s1i * windowIncrement + windowIncrement +
Chris@0: 	(m_windowSize - windowIncrement)/2 - 1;
Chris@0:     
Chris@0:     min = RealTime::frame2RealTime(w0, m_model->getSampleRate());
Chris@0:     max = RealTime::frame2RealTime(w1, m_model->getSampleRate());
Chris@0:     return true;
Chris@0: }
Chris@0: 
Chris@0: bool
Chris@918: SpectrogramLayer::getYBinSourceRange(LayerGeometryProvider *v, int y, double &freqMin, double &freqMax)
Chris@0: const
Chris@0: {
Chris@905:     double q0 = 0, q1 = 0;
Chris@44:     if (!getYBinRange(v, y, q0, q1)) return false;
Chris@0: 
Chris@0:     int q0i = int(q0 + 0.001);
Chris@0:     int q1i = int(q1);
Chris@0: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@0: 
Chris@0:     for (int q = q0i; q <= q1i; ++q) {
Chris@121: 	if (q == q0i) freqMin = (sr * q) / m_fftSize;
Chris@121: 	if (q == q1i) freqMax = (sr * (q+1)) / m_fftSize;
Chris@0:     }
Chris@0:     return true;
Chris@0: }
Chris@35: 
Chris@35: bool
Chris@918: SpectrogramLayer::getAdjustedYBinSourceRange(LayerGeometryProvider *v, int x, int y,
Chris@905: 					     double &freqMin, double &freqMax,
Chris@905: 					     double &adjFreqMin, double &adjFreqMax)
Chris@35: const
Chris@35: {
Chris@277:     if (!m_model || !m_model->isOK() || !m_model->isReady()) {
Chris@277: 	return false;
Chris@277:     }
Chris@277: 
Chris@130:     FFTModel *fft = getFFTModel(v);
Chris@114:     if (!fft) return false;
Chris@110: 
Chris@905:     double s0 = 0, s1 = 0;
Chris@44:     if (!getXBinRange(v, x, s0, s1)) return false;
Chris@35: 
Chris@905:     double q0 = 0, q1 = 0;
Chris@44:     if (!getYBinRange(v, y, q0, q1)) return false;
Chris@35: 
Chris@35:     int s0i = int(s0 + 0.001);
Chris@35:     int s1i = int(s1);
Chris@35: 
Chris@35:     int q0i = int(q0 + 0.001);
Chris@35:     int q1i = int(q1);
Chris@35: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@35: 
Chris@35:     bool haveAdj = false;
Chris@35: 
Chris@37:     bool peaksOnly = (m_binDisplay == PeakBins ||
Chris@37: 		      m_binDisplay == PeakFrequencies);
Chris@37: 
Chris@35:     for (int q = q0i; q <= q1i; ++q) {
Chris@35: 
Chris@35: 	for (int s = s0i; s <= s1i; ++s) {
Chris@35: 
Chris@905: 	    double binfreq = (double(sr) * q) / m_windowSize;
Chris@35: 	    if (q == q0i) freqMin = binfreq;
Chris@35: 	    if (q == q1i) freqMax = binfreq;
Chris@37: 
Chris@114: 	    if (peaksOnly && !fft->isLocalPeak(s, q)) continue;
Chris@38: 
Chris@907: 	    if (!fft->isOverThreshold(s, q, float(m_threshold * double(m_fftSize)/2.0))) continue;
Chris@907: 
Chris@907:             double freq = binfreq;
Chris@40: 	    
Chris@114: 	    if (s < int(fft->getWidth()) - 1) {
Chris@38: 
Chris@277:                 fft->estimateStableFrequency(s, q, freq);
Chris@35: 	    
Chris@38: 		if (!haveAdj || freq < adjFreqMin) adjFreqMin = freq;
Chris@38: 		if (!haveAdj || freq > adjFreqMax) adjFreqMax = freq;
Chris@35: 
Chris@35: 		haveAdj = true;
Chris@35: 	    }
Chris@35: 	}
Chris@35:     }
Chris@35: 
Chris@35:     if (!haveAdj) {
Chris@40: 	adjFreqMin = adjFreqMax = 0.0;
Chris@35:     }
Chris@35: 
Chris@35:     return haveAdj;
Chris@35: }
Chris@0:     
Chris@0: bool
Chris@918: SpectrogramLayer::getXYBinSourceRange(LayerGeometryProvider *v, int x, int y,
Chris@905: 				      double &min, double &max,
Chris@905: 				      double &phaseMin, double &phaseMax) const
Chris@0: {
Chris@277:     if (!m_model || !m_model->isOK() || !m_model->isReady()) {
Chris@277: 	return false;
Chris@277:     }
Chris@277: 
Chris@905:     double q0 = 0, q1 = 0;
Chris@44:     if (!getYBinRange(v, y, q0, q1)) return false;
Chris@0: 
Chris@905:     double s0 = 0, s1 = 0;
Chris@44:     if (!getXBinRange(v, x, s0, s1)) return false;
Chris@0:     
Chris@0:     int q0i = int(q0 + 0.001);
Chris@0:     int q1i = int(q1);
Chris@0: 
Chris@0:     int s0i = int(s0 + 0.001);
Chris@0:     int s1i = int(s1);
Chris@0: 
Chris@37:     bool rv = false;
Chris@37: 
Chris@805:     int zp = getZeroPadLevel(v);
Chris@122:     q0i *= zp + 1;
Chris@122:     q1i *= zp + 1;
Chris@122: 
Chris@130:     FFTModel *fft = getFFTModel(v);
Chris@0: 
Chris@114:     if (fft) {
Chris@114: 
Chris@114:         int cw = fft->getWidth();
Chris@114:         int ch = fft->getHeight();
Chris@0: 
Chris@110:         min = 0.0;
Chris@110:         max = 0.0;
Chris@110:         phaseMin = 0.0;
Chris@110:         phaseMax = 0.0;
Chris@110:         bool have = false;
Chris@0: 
Chris@110:         for (int q = q0i; q <= q1i; ++q) {
Chris@110:             for (int s = s0i; s <= s1i; ++s) {
Chris@110:                 if (s >= 0 && q >= 0 && s < cw && q < ch) {
Chris@117: 
Chris@905:                     double value;
Chris@38: 
Chris@114:                     value = fft->getPhaseAt(s, q);
Chris@110:                     if (!have || value < phaseMin) { phaseMin = value; }
Chris@110:                     if (!have || value > phaseMax) { phaseMax = value; }
Chris@91: 
Chris@907:                     value = fft->getMagnitudeAt(s, q) / (m_fftSize/2.0);
Chris@110:                     if (!have || value < min) { min = value; }
Chris@110:                     if (!have || value > max) { max = value; }
Chris@110:                     
Chris@110:                     have = true;
Chris@110:                 }	
Chris@110:             }
Chris@110:         }
Chris@110:         
Chris@110:         if (have) {
Chris@110:             rv = true;
Chris@110:         }
Chris@0:     }
Chris@0: 
Chris@37:     return rv;
Chris@0: }
Chris@0:    
Chris@805: int
Chris@918: SpectrogramLayer::getZeroPadLevel(const LayerGeometryProvider *v) const
Chris@114: {
Chris@114:     //!!! tidy all this stuff
Chris@114: 
Chris@114:     if (m_binDisplay != AllBins) return 0;
Chris@221: 
Chris@221:     Preferences::SpectrogramSmoothing smoothing = 
Chris@221:         Preferences::getInstance()->getSpectrogramSmoothing();
Chris@221:     
Chris@221:     if (smoothing == Preferences::NoSpectrogramSmoothing ||
Chris@221:         smoothing == Preferences::SpectrogramInterpolated) return 0;
Chris@221: 
Chris@114:     if (m_frequencyScale == LogFrequencyScale) return 3;
Chris@114: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@114:     
Chris@805:     int maxbin = m_fftSize / 2;
Chris@114:     if (m_maxFrequency > 0) {
Chris@184: 	maxbin = int((double(m_maxFrequency) * m_fftSize) / sr + 0.1);
Chris@184: 	if (maxbin > m_fftSize / 2) maxbin = m_fftSize / 2;
Chris@114:     }
Chris@114: 
Chris@805:     int minbin = 1;
Chris@114:     if (m_minFrequency > 0) {
Chris@114: 	minbin = int((double(m_minFrequency) * m_fftSize) / sr + 0.1);
Chris@114: 	if (minbin < 1) minbin = 1;
Chris@184: 	if (minbin >= maxbin) minbin = maxbin - 1;
Chris@114:     }
Chris@114: 
Chris@905:     double perPixel =
Chris@918:         double(v->getPaintHeight()) /
Chris@905:         double((maxbin - minbin) / (m_zeroPadLevel + 1));
Chris@118: 
Chris@118:     if (perPixel > 2.8) {
Chris@118:         return 3; // 4x oversampling
Chris@118:     } else if (perPixel > 1.5) {
Chris@118:         return 1; // 2x
Chris@114:     } else {
Chris@118:         return 0; // 1x
Chris@114:     }
Chris@114: }
Chris@114: 
Chris@805: int
Chris@918: SpectrogramLayer::getFFTSize(const LayerGeometryProvider *v) const
Chris@114: {
Chris@114:     return m_fftSize * (getZeroPadLevel(v) + 1);
Chris@114: }
Chris@114: 	
Chris@130: FFTModel *
Chris@918: SpectrogramLayer::getFFTModel(const LayerGeometryProvider *v) const
Chris@114: {
Chris@114:     if (!m_model) return 0;
Chris@114: 
Chris@805:     int fftSize = getFFTSize(v);
Chris@114: 
Chris@920:     const View *view = v->getView();
Chris@920:     
Chris@1030:     if (m_fftModels.find(view->getId()) != m_fftModels.end()) {
Chris@1030:         if (m_fftModels[view->getId()] == 0) {
Chris@184: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:             cerr << "SpectrogramLayer::getFFTModel(" << v << "): Found null model" << endl;
Chris@184: #endif
Chris@184:             return 0;
Chris@184:         }
Chris@1030:         if (m_fftModels[view->getId()]->getHeight() != fftSize / 2 + 1) {
Chris@184: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:             cerr << "SpectrogramLayer::getFFTModel(" << v << "): Found a model with the wrong height (" << m_fftModels[view->getId()]->getHeight() << ", wanted " << (fftSize / 2 + 1) << ")" << endl;
Chris@184: #endif
Chris@1030:             delete m_fftModels[view->getId()];
Chris@1030:             m_fftModels.erase(view->getId());
Chris@1030:             delete m_peakCaches[view->getId()];
Chris@1030:             m_peakCaches.erase(view->getId());
Chris@184:         } else {
Chris@184: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:             cerr << "SpectrogramLayer::getFFTModel(" << v << "): Found a good model of height " << m_fftModels[view->getId()]->getHeight() << endl;
Chris@184: #endif
Chris@1030:             return m_fftModels[view->getId()];
Chris@114:         }
Chris@114:     }
Chris@114: 
Chris@1030:     if (m_fftModels.find(view->getId()) == m_fftModels.end()) {
Chris@169: 
Chris@169:         FFTModel *model = new FFTModel(m_model,
Chris@169:                                        m_channel,
Chris@169:                                        m_windowType,
Chris@169:                                        m_windowSize,
Chris@169:                                        getWindowIncrement(),
Chris@975:                                        fftSize);
Chris@169: 
Chris@178:         if (!model->isOK()) {
Chris@178:             QMessageBox::critical
Chris@178:                 (0, tr("FFT cache failed"),
Chris@178:                  tr("Failed to create the FFT model for this spectrogram.\n"
Chris@178:                     "There may be insufficient memory or disc space to continue."));
Chris@178:             delete model;
Chris@1030:             m_fftModels[view->getId()] = 0;
Chris@178:             return 0;
Chris@178:         }
Chris@178: 
Chris@193:         if (!m_sliceableModel) {
Chris@248: #ifdef DEBUG_SPECTROGRAM
Chris@682:             cerr << "SpectrogramLayer: emitting sliceableModelReplaced(0, " << model << ")" << endl;
Chris@248: #endif
Chris@193:             ((SpectrogramLayer *)this)->sliceableModelReplaced(0, model);
Chris@193:             m_sliceableModel = model;
Chris@193:         }
Chris@193: 
Chris@1030:         m_fftModels[view->getId()] = model;
Chris@114:     }
Chris@114: 
Chris@1030:     return m_fftModels[view->getId()];
Chris@114: }
Chris@114: 
Chris@484: Dense3DModelPeakCache *
Chris@918: SpectrogramLayer::getPeakCache(const LayerGeometryProvider *v) const
Chris@484: {
Chris@920:     const View *view = v->getView();
Chris@1030:     if (!m_peakCaches[view->getId()]) {
Chris@484:         FFTModel *f = getFFTModel(v);
Chris@484:         if (!f) return 0;
Chris@1030:         m_peakCaches[view->getId()] = new Dense3DModelPeakCache(f, 8);
Chris@484:     }
Chris@1030:     return m_peakCaches[view->getId()];
Chris@484: }
Chris@484: 
Chris@193: const Model *
Chris@193: SpectrogramLayer::getSliceableModel() const
Chris@193: {
Chris@193:     if (m_sliceableModel) return m_sliceableModel;
Chris@193:     if (m_fftModels.empty()) return 0;
Chris@985:     m_sliceableModel = m_fftModels.begin()->second;
Chris@193:     return m_sliceableModel;
Chris@193: }
Chris@193: 
Chris@114: void
Chris@130: SpectrogramLayer::invalidateFFTModels()
Chris@114: {
Chris@130:     for (ViewFFTMap::iterator i = m_fftModels.begin();
Chris@130:          i != m_fftModels.end(); ++i) {
Chris@985:         delete i->second;
Chris@114:     }
Chris@486:     for (PeakCacheMap::iterator i = m_peakCaches.begin();
Chris@486:          i != m_peakCaches.end(); ++i) {
Chris@486:         delete i->second;
Chris@486:     }
Chris@114:     
Chris@130:     m_fftModels.clear();
Chris@486:     m_peakCaches.clear();
Chris@193: 
Chris@193:     if (m_sliceableModel) {
Chris@682:         cerr << "SpectrogramLayer: emitting sliceableModelReplaced(" << m_sliceableModel << ", 0)" << endl;
Chris@193:         emit sliceableModelReplaced(m_sliceableModel, 0);
Chris@193:         m_sliceableModel = 0;
Chris@193:     }
Chris@114: }
Chris@114: 
Chris@0: void
Chris@119: SpectrogramLayer::invalidateMagnitudes()
Chris@119: {
Chris@119:     m_viewMags.clear();
Chris@1025:     for (vector<MagnitudeRange>::iterator i = m_columnMags.begin();
Chris@119:          i != m_columnMags.end(); ++i) {
Chris@119:         *i = MagnitudeRange();
Chris@119:     }
Chris@119: }
Chris@119: 
Chris@119: bool
Chris@918: SpectrogramLayer::updateViewMagnitudes(LayerGeometryProvider *v) const
Chris@119: {
Chris@119:     MagnitudeRange mag;
Chris@119: 
Chris@918:     int x0 = 0, x1 = v->getPaintWidth();
Chris@905:     double s00 = 0, s01 = 0, s10 = 0, s11 = 0;
Chris@119:     
Chris@203:     if (!getXBinRange(v, x0, s00, s01)) {
Chris@907:         s00 = s01 = double(m_model->getStartFrame()) / getWindowIncrement();
Chris@203:     }
Chris@203: 
Chris@203:     if (!getXBinRange(v, x1, s10, s11)) {
Chris@907:         s10 = s11 = double(m_model->getEndFrame()) / getWindowIncrement();
Chris@203:     }
Chris@119: 
Chris@1025:     int s0 = int(min(s00, s10) + 0.0001);
Chris@1025:     int s1 = int(max(s01, s11) + 0.0001);
Chris@203: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::updateViewMagnitudes: x0 = " << x0 << ", x1 = " << x1 << ", s00 = " << s00 << ", s11 = " << s11 << " s0 = " << s0 << ", s1 = " << s1 << endl;
Chris@119: 
Chris@248:     if (int(m_columnMags.size()) <= s1) {
Chris@119:         m_columnMags.resize(s1 + 1);
Chris@119:     }
Chris@119: 
Chris@119:     for (int s = s0; s <= s1; ++s) {
Chris@119:         if (m_columnMags[s].isSet()) {
Chris@119:             mag.sample(m_columnMags[s]);
Chris@119:         }
Chris@119:     }
Chris@119: 
Chris@184: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:     cerr << "SpectrogramLayer::updateViewMagnitudes returning from cols "
Chris@585:               << s0 << " -> " << s1 << " inclusive" << endl;
Chris@184: #endif
Chris@119: 
Chris@119:     if (!mag.isSet()) return false;
Chris@1030:     if (mag == m_viewMags[v->getId()]) return false;
Chris@1030:     m_viewMags[v->getId()] = mag;
Chris@119:     return true;
Chris@119: }
Chris@119: 
Chris@119: void
Chris@389: SpectrogramLayer::setSynchronousPainting(bool synchronous)
Chris@389: {
Chris@389:     m_synchronous = synchronous;
Chris@389: }
Chris@389: 
Chris@1030: ScrollableImageCache &
Chris@1030: SpectrogramLayer::getImageCacheReference(const LayerGeometryProvider *view) const
Chris@1030: {
Chris@1030:     if (m_imageCaches.find(view->getId()) == m_imageCaches.end()) {
Chris@1030:         m_imageCaches[view->getId()] = ScrollableImageCache(view);
Chris@1030:     }
Chris@1030:     return m_imageCaches.at(view->getId());
Chris@1030: }
Chris@1030: 
Chris@389: void
Chris@916: SpectrogramLayer::paint(LayerGeometryProvider *v, QPainter &paint, QRect rect) const
Chris@0: {
Chris@334:     Profiler profiler("SpectrogramLayer::paint", false);
Chris@334: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer::paint() entering: m_model is " << m_model << ", zoom level is " << v->getZoomLevel() << endl;
Chris@95:     
Chris@1026:     cerr << "SpectrogramLayer::paint(): rect is " << rect.x() << "," << rect.y() << " " << rect.width() << "x" << rect.height() << endl;
Chris@0: #endif
Chris@95: 
Chris@907:     sv_frame_t startFrame = v->getStartFrame();
Chris@44: 
Chris@0:     if (!m_model || !m_model->isOK() || !m_model->isReady()) {
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@47:     if (isLayerDormant(v)) {
Chris@587: 	SVDEBUG << "SpectrogramLayer::paint(): Layer is dormant, making it undormant again" << endl;
Chris@29:     }
Chris@29: 
Chris@48:     // Need to do this even if !isLayerDormant, as that could mean v
Chris@48:     // is not in the dormancy map at all -- we need it to be present
Chris@48:     // and accountable for when determining whether we need the cache
Chris@48:     // in the cache-fill thread above.
Chris@806:     //!!! no inter use cache-fill thread
Chris@131:     const_cast<SpectrogramLayer *>(this)->Layer::setLayerDormant(v, false);
Chris@48: 
Chris@805:     int fftSize = getFFTSize(v);
Chris@920: 
Chris@920:     const View *view = v->getView();
Chris@1030:     ScrollableImageCache &cache = getImageCacheReference(view);
Chris@95: 
Chris@95: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:     cerr << "SpectrogramLayer::paint(): image cache valid area from " << cache.getValidLeft() << " width " << cache.getValidWidth() << ", height " << cache.getSize().height() << endl;
Chris@1030:     if (rect.x() + rect.width() + 1 < cache.getValidLeft() ||
Chris@1030:         rect.x() > cache.getValidRight()) {
Chris@1030:         cerr << "SpectrogramLayer: NOTE: requested rect is not contiguous with cache valid area" << endl;
Chris@1030:     }
Chris@95: #endif
Chris@95: 
Chris@44:     int zoomLevel = v->getZoomLevel();
Chris@0: 
Chris@1030:     int x0 = v->getXForViewX(rect.x());
Chris@1030:     int x1 = v->getXForViewX(rect.x() + rect.width());
Chris@1030:     if (x0 < 0) x0 = 0;
Chris@1030:     if (x1 > v->getPaintWidth()) x1 = v->getPaintWidth();
Chris@1022: 
Chris@1022:     if (updateViewMagnitudes(v)) {
Chris@1022: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:         cerr << "SpectrogramLayer: magnitude range changed to [" << m_viewMags[v->getId()].getMin() << "->" << m_viewMags[v->getId()].getMax() << "]" << endl;
Chris@1022: #endif
Chris@1022:         if (m_normalization == NormalizeVisibleArea) {
Chris@1030:             cache.invalidate();
Chris@1022:         }
Chris@1022:     }
Chris@1030: 
Chris@1030:     if (cache.getZoomLevel() != zoomLevel ||
Chris@1030:         cache.getSize() != v->getPaintSize()) {
Chris@1031: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1031:         cerr << "SpectrogramLayer: resizing image cache from "
Chris@1031:              << cache.getSize().width() << "x" << cache.getSize().height()
Chris@1031:              << " to "
Chris@1031:              << v->getPaintSize().width() << "x" << v->getPaintSize().height()
Chris@1031:              << " and updating zoom level from " << cache.getZoomLevel()
Chris@1031:              << " to " << zoomLevel
Chris@1031:              << endl;
Chris@1031: #endif
Chris@1030:         cache.resize(v->getPaintSize());
Chris@1031:         cache.setZoomLevel(zoomLevel);
Chris@1031:         cache.setStartFrame(startFrame);
Chris@1030:     }
Chris@1023:     
Chris@1030:     if (cache.isValid()) {
Chris@482:         
Chris@1030:         if (v->getXForFrame(cache.getStartFrame()) ==
Chris@1030:             v->getXForFrame(startFrame) &&
Chris@1030:             cache.getValidLeft() <= x0 &&
Chris@1030:             cache.getValidRight() >= x1) {
Chris@1022:                 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:             cerr << "SpectrogramLayer: image cache hit!" << endl;
Chris@0: #endif
Chris@0: 
Chris@1030:             paint.drawImage(rect, cache.getImage(), rect);
Chris@1030: 
Chris@1030:             illuminateLocalFeatures(v, paint);
Chris@1030:             return;
Chris@1030: 
Chris@1030:         } else {
Chris@1030: 
Chris@1030:             // cache doesn't begin at the right frame or doesn't
Chris@1030:             // contain the complete view, but might be scrollable or
Chris@1030:             // partially usable
Chris@1022:                 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:             cerr << "SpectrogramLayer: scrolling the image cache if applicable" << endl;
Chris@0: #endif
Chris@0: 
Chris@1030:             cache.scrollTo(startFrame);
Chris@1030:             
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1031:             cerr << "SpectrogramLayer: after scrolling, cache valid from "
Chris@1030:                  << cache.getValidLeft() << " width " << cache.getValidWidth()
Chris@1030:                  << endl;
Chris@0: #endif
Chris@1030:         }
Chris@0:     }
Chris@95: 
Chris@1030:     bool rightToLeft = false;
Chris@1030:     
Chris@1030:     if (!cache.isValid()) {
Chris@1028:         if (!m_synchronous) {
Chris@1028:             // When rendering the whole thing, start from somewhere near
Chris@1028:             // the middle so that the region of interest appears first
Chris@1038: 
Chris@1038:             //!!! (perhaps we should have some cunning test to avoid
Chris@1038:             //!!! doing this if past repaints have appeared fast
Chris@1038:             //!!! enough to do the whole width in one shot)
Chris@1030:             if (x0 == 0 && x1 == v->getPaintWidth()) {
Chris@1037:                 x0 = int(x1 * 0.3);
Chris@1030:             }
Chris@1028:         }
Chris@1030:     } else {
Chris@1030:         // When rendering only a part of the cache, we need to make
Chris@1030:         // sure that the part we're rendering is adjacent to (or
Chris@1030:         // overlapping) a valid area of cache, if we have one. The
Chris@1030:         // alternative is to ditch the valid area of cache and render
Chris@1030:         // only the requested area, but that's risky because this can
Chris@1030:         // happen when just waving the pointer over a small part of
Chris@1030:         // the view -- if we lose the partly-built cache every time
Chris@1030:         // the user does that, we'll never finish building it.
Chris@1030:         int left = x0;
Chris@1030:         int width = x1 - x0;
Chris@1030:         bool isLeftOfValidArea = false;
Chris@1031:         cache.adjustToTouchValidArea(left, width, isLeftOfValidArea);
Chris@1030:         x0 = left;
Chris@1030:         x1 = x0 + width;
Chris@1030: 
Chris@1030:         // That call also told us whether we should be painting
Chris@1030:         // sub-regions of our target region in right-to-left order in
Chris@1030:         // order to ensure contiguity
Chris@1030:         rightToLeft = isLeftOfValidArea;
Chris@95:     }
Chris@1030:     
Chris@224:     // We always paint the full height when refreshing the cache.
Chris@224:     // Smaller heights can be used when painting direct from cache
Chris@224:     // (further up in this function), but we want to ensure the cache
Chris@224:     // is coherent without having to worry about vertical matching of
Chris@224:     // required and valid areas as well as horizontal.
Chris@918:     int h = v->getPaintHeight();
Chris@1025:     
Chris@1024:     int repaintWidth = x1 - x0;
Chris@0: 
Chris@95: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer: x0 " << x0 << ", x1 " << x1
Chris@1026:          << ", repaintWidth " << repaintWidth << ", h " << h
Chris@1030:          << ", rightToLeft " << rightToLeft << endl;
Chris@95: #endif
Chris@95: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@122: 
Chris@122:     // Set minFreq and maxFreq to the frequency extents of the possibly
Chris@122:     // zero-padded visible bin range, and displayMinFreq and displayMaxFreq
Chris@122:     // to the actual scale frequency extents (presumably not zero padded).
Chris@253: 
Chris@253:     // If we are zero padding, we want to use the zero-padded
Chris@253:     // equivalents of the bins that we would be using if not zero
Chris@253:     // padded, to avoid spaces at the top and bottom of the display.
Chris@253: 
Chris@253:     // Note fftSize is the actual zero-padded fft size, m_fftSize the
Chris@253:     // nominal fft size.
Chris@35:     
Chris@805:     int maxbin = m_fftSize / 2;
Chris@35:     if (m_maxFrequency > 0) {
Chris@253: 	maxbin = int((double(m_maxFrequency) * m_fftSize) / sr + 0.001);
Chris@253: 	if (maxbin > m_fftSize / 2) maxbin = m_fftSize / 2;
Chris@35:     }
Chris@111: 
Chris@805:     int minbin = 1;
Chris@37:     if (m_minFrequency > 0) {
Chris@253: 	minbin = int((double(m_minFrequency) * m_fftSize) / sr + 0.001);
Chris@682: //        cerr << "m_minFrequency = " << m_minFrequency << " -> minbin = " << minbin << endl;
Chris@40: 	if (minbin < 1) minbin = 1;
Chris@184: 	if (minbin >= maxbin) minbin = maxbin - 1;
Chris@37:     }
Chris@37: 
Chris@253:     int zpl = getZeroPadLevel(v) + 1;
Chris@253:     minbin = minbin * zpl;
Chris@253:     maxbin = (maxbin + 1) * zpl - 1;
Chris@253: 
Chris@905:     double minFreq = (double(minbin) * sr) / fftSize;
Chris@905:     double maxFreq = (double(maxbin) * sr) / fftSize;
Chris@905: 
Chris@905:     double displayMinFreq = minFreq;
Chris@905:     double displayMaxFreq = maxFreq;
Chris@122: 
Chris@122:     if (fftSize != m_fftSize) {
Chris@122:         displayMinFreq = getEffectiveMinFrequency();
Chris@122:         displayMaxFreq = getEffectiveMaxFrequency();
Chris@122:     }
Chris@122: 
Chris@682: //    cerr << "(giving actual minFreq " << minFreq << " and display minFreq " << displayMinFreq << ")" << endl;
Chris@253: 
Chris@518:     int increment = getWindowIncrement();
Chris@40:     
Chris@40:     bool logarithmic = (m_frequencyScale == LogFrequencyScale);
Chris@1026: 
Chris@1030:     MagnitudeRange overallMag = m_viewMags[v->getId()];
Chris@119:     bool overallMagChanged = false;
Chris@119: 
Chris@137: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer: " << ((double(v->getFrameForX(1) - v->getFrameForX(0))) / increment) << " bin(s) per pixel" << endl;
Chris@137: #endif
Chris@137: 
Chris@1024:     if (repaintWidth == 0) {
Chris@1024:         SVDEBUG << "*** NOTE: repaintWidth == 0" << endl;
Chris@331:     }
Chris@331: 
Chris@382:     Profiler outerprof("SpectrogramLayer::paint: all cols");
Chris@382: 
Chris@481:     // The draw buffer contains a fragment at either our pixel
Chris@481:     // resolution (if there is more than one time-bin per pixel) or
Chris@481:     // time-bin resolution (if a time-bin spans more than one pixel).
Chris@481:     // We need to ensure that it starts and ends at points where a
Chris@481:     // time-bin boundary occurs at an exact pixel boundary, and with a
Chris@481:     // certain amount of overlap across existing pixels so that we can
Chris@481:     // scale and draw from it without smoothing errors at the edges.
Chris@481: 
Chris@481:     // If (getFrameForX(x) / increment) * increment ==
Chris@481:     // getFrameForX(x), then x is a time-bin boundary.  We want two
Chris@481:     // such boundaries at either side of the draw buffer -- one which
Chris@481:     // we draw up to, and one which we subsequently crop at.
Chris@481: 
Chris@1039:     bool bufferIsBinResolution = false;
Chris@1039:     if (increment > zoomLevel) bufferIsBinResolution = true;
Chris@481: 
Chris@907:     sv_frame_t leftBoundaryFrame = -1, leftCropFrame = -1;
Chris@907:     sv_frame_t rightBoundaryFrame = -1, rightCropFrame = -1;
Chris@481: 
Chris@481:     int bufwid;
Chris@481: 
Chris@1039:     if (bufferIsBinResolution) {
Chris@481: 
Chris@482:         for (int x = x0; ; --x) {
Chris@907:             sv_frame_t f = v->getFrameForX(x);
Chris@481:             if ((f / increment) * increment == f) {
Chris@481:                 if (leftCropFrame == -1) leftCropFrame = f;
Chris@1024:                 else if (x < x0 - 2) {
Chris@1024:                     leftBoundaryFrame = f;
Chris@1024:                     break;
Chris@1024:                 }
Chris@481:             }
Chris@481:         }
Chris@1024:         for (int x = x0 + repaintWidth; ; ++x) {
Chris@907:             sv_frame_t f = v->getFrameForX(x);
Chris@481:             if ((f / increment) * increment == f) {
Chris@481:                 if (rightCropFrame == -1) rightCropFrame = f;
Chris@1024:                 else if (x > x0 + repaintWidth + 2) {
Chris@1024:                     rightBoundaryFrame = f;
Chris@1024:                     break;
Chris@1024:                 }
Chris@481:             }
Chris@481:         }
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@481:         cerr << "Left: crop: " << leftCropFrame << " (bin " << leftCropFrame/increment << "); boundary: " << leftBoundaryFrame << " (bin " << leftBoundaryFrame/increment << ")" << endl;
Chris@481:         cerr << "Right: crop: " << rightCropFrame << " (bin " << rightCropFrame/increment << "); boundary: " << rightBoundaryFrame << " (bin " << rightBoundaryFrame/increment << ")" << endl;
Chris@485: #endif
Chris@481: 
Chris@907:         bufwid = int((rightBoundaryFrame - leftBoundaryFrame) / increment);
Chris@481: 
Chris@481:     } else {
Chris@481:         
Chris@1024:         bufwid = repaintWidth;
Chris@481:     }
Chris@481: 
Chris@907:     vector<int> binforx(bufwid);
Chris@907:     vector<double> binfory(h);
Chris@907:     
Chris@484:     bool usePeaksCache = false;
Chris@484: 
Chris@1039:     if (bufferIsBinResolution) {
Chris@481:         for (int x = 0; x < bufwid; ++x) {
Chris@907:             binforx[x] = int(leftBoundaryFrame / increment) + x;
Chris@481:         }
Chris@481:         m_drawBuffer = QImage(bufwid, h, QImage::Format_Indexed8);
Chris@481:     } else {
Chris@481:         for (int x = 0; x < bufwid; ++x) {
Chris@905:             double s0 = 0, s1 = 0;
Chris@481:             if (getXBinRange(v, x + x0, s0, s1)) {
Chris@481:                 binforx[x] = int(s0 + 0.0001);
Chris@481:             } else {
Chris@487:                 binforx[x] = -1; //???
Chris@481:             }
Chris@481:         }
Chris@1031:         if (m_drawBuffer.width() < bufwid || m_drawBuffer.height() != h) {
Chris@481:             m_drawBuffer = QImage(bufwid, h, QImage::Format_Indexed8);
Chris@480:         }
Chris@484:         usePeaksCache = (increment * 8) < zoomLevel;
Chris@487:         if (m_colourScale == PhaseColourScale) usePeaksCache = false;
Chris@480:     }
Chris@481: 
Chris@481:     for (int pixel = 0; pixel < 256; ++pixel) {
Chris@907:         m_drawBuffer.setColor((unsigned char)pixel,
Chris@907:                               m_palette.getColour((unsigned char)pixel).rgb());
Chris@481:     }
Chris@481: 
Chris@481:     m_drawBuffer.fill(0);
Chris@1024:     int attainedBufwid = bufwid;
Chris@1039: 
Chris@1039:     double softTimeLimit;
Chris@1039: 
Chris@1039:     if (m_synchronous) {
Chris@1039: 
Chris@1039:         // must paint the whole thing for synchronous mode, so give
Chris@1039:         // "no timeout"
Chris@1039:         softTimeLimit = 0.0;
Chris@1039:         
Chris@1039:     } else if (bufferIsBinResolution) {
Chris@1039:         
Chris@1039:         // calculating boundaries later will be too fiddly for partial
Chris@1039:         // paints, and painting should be fast anyway when this is the
Chris@1039:         // case because it means we're well zoomed in
Chris@1039:         softTimeLimit = 0.0;
Chris@1039: 
Chris@1039:     } else {
Chris@1039: 
Chris@1039:         // neither limitation applies, so use a short soft limit
Chris@1039: 
Chris@1039:         if (m_binDisplay == PeakFrequencies) {
Chris@1039:             softTimeLimit = 0.15;
Chris@1039:         } else {
Chris@1039:             softTimeLimit = 0.1;
Chris@1039:         }
Chris@1039:     }
Chris@1039: 
Chris@488:     if (m_binDisplay != PeakFrequencies) {
Chris@488: 
Chris@488:         for (int y = 0; y < h; ++y) {
Chris@905:             double q0 = 0, q1 = 0;
Chris@488:             if (!getSmoothedYBinRange(v, h-y-1, q0, q1)) {
Chris@488:                 binfory[y] = -1;
Chris@488:             } else {
Chris@490:                 binfory[y] = q0;
Chris@488:             }
Chris@480:         }
Chris@488: 
Chris@1024:         attainedBufwid = 
Chris@1026:             paintDrawBuffer(v, bufwid, h, binforx, binfory,
Chris@1026:                             usePeaksCache,
Chris@1026:                             overallMag, overallMagChanged,
Chris@1039:                             rightToLeft,
Chris@1039:                             softTimeLimit);
Chris@488: 
Chris@488:     } else {
Chris@488: 
Chris@1024:         attainedBufwid = 
Chris@1024:             paintDrawBufferPeakFrequencies(v, bufwid, h, binforx,
Chris@1024:                                            minbin, maxbin,
Chris@1024:                                            displayMinFreq, displayMaxFreq,
Chris@1024:                                            logarithmic,
Chris@1026:                                            overallMag, overallMagChanged,
Chris@1039:                                            rightToLeft,
Chris@1039:                                            softTimeLimit);
Chris@480:     }
Chris@481: 
Chris@1024:     int failedToRepaint = bufwid - attainedBufwid;
Chris@1031: 
Chris@1031:     int paintedLeft = x0;
Chris@1031:     int paintedWidth = x1 - x0;
Chris@1031:     
Chris@1025:     if (failedToRepaint > 0) {
Chris@1031: 
Chris@1025: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:         cerr << "SpectrogramLayer::paint(): Failed to repaint " << failedToRepaint << " of " << bufwid
Chris@1029:              << " columns in time (so managed to repaint " << bufwid - failedToRepaint << ")" << endl;
Chris@1025: #endif
Chris@1031: 
Chris@1031:         if (rightToLeft) {
Chris@1031:             paintedLeft += failedToRepaint;
Chris@1031:         }
Chris@1031: 
Chris@1031:         paintedWidth -= failedToRepaint;
Chris@1031: 
Chris@1031:         if (paintedWidth < 0) {
Chris@1031:             paintedWidth = 0;
Chris@1031:         }
Chris@1031:         
Chris@1025:     } else if (failedToRepaint < 0) {
Chris@1024:         cerr << "WARNING: failedToRepaint < 0 (= " << failedToRepaint << ")"
Chris@1024:              << endl;
Chris@1024:         failedToRepaint = 0;
Chris@1024:     }
Chris@1031: 
Chris@119:     if (overallMagChanged) {
Chris@1030:         m_viewMags[v->getId()] = overallMag;
Chris@209: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:         cerr << "SpectrogramLayer: Overall mag is now [" << m_viewMags[v->getId()].getMin() << "->" << m_viewMags[v->getId()].getMax() << "] - will be updating" << endl;
Chris@209: #endif
Chris@119:     }
Chris@119: 
Chris@382:     outerprof.end();
Chris@382: 
Chris@382:     Profiler profiler2("SpectrogramLayer::paint: draw image");
Chris@137: 
Chris@1031:     if (paintedWidth > 0) {
Chris@1024: 
Chris@224: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1031:         cerr << "SpectrogramLayer: Copying " << paintedWidth << "x" << h
Chris@1031:                   << " from draw buffer at " << paintedLeft - x0 << "," << 0
Chris@1031:                   << " to " << paintedWidth << "x" << h << " on cache at "
Chris@585:                   << x0 << "," << 0 << endl;
Chris@224: #endif
Chris@224: 
Chris@1039:         if (bufferIsBinResolution) {
Chris@1031: 
Chris@481:             int scaledLeft = v->getXForFrame(leftBoundaryFrame);
Chris@481:             int scaledRight = v->getXForFrame(rightBoundaryFrame);
Chris@1031: 
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:             cerr << "SpectrogramLayer: Rescaling image from " << bufwid
Chris@481:                  << "x" << h << " to "
Chris@481:                  << scaledRight-scaledLeft << "x" << h << endl;
Chris@485: #endif
Chris@1031: 
Chris@490:             Preferences::SpectrogramXSmoothing xsmoothing = 
Chris@490:                 Preferences::getInstance()->getSpectrogramXSmoothing();
Chris@1026: 
Chris@481:             QImage scaled = m_drawBuffer.scaled
Chris@481:                 (scaledRight - scaledLeft, h,
Chris@490:                  Qt::IgnoreAspectRatio,
Chris@490:                  ((xsmoothing == Preferences::SpectrogramXInterpolated) ?
Chris@490:                   Qt::SmoothTransformation : Qt::FastTransformation));
Chris@1026:             
Chris@481:             int scaledLeftCrop = v->getXForFrame(leftCropFrame);
Chris@481:             int scaledRightCrop = v->getXForFrame(rightCropFrame);
Chris@1031: 
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:             cerr << "SpectrogramLayer: Drawing image region of width " << scaledRightCrop - scaledLeftCrop << " to "
Chris@481:                  << scaledLeftCrop << " from " << scaledLeftCrop - scaledLeft << endl;
Chris@485: #endif
Chris@1030: 
Chris@1040:             int targetLeft = scaledLeftCrop;
Chris@1040:             if (targetLeft < 0) {
Chris@1040:                 targetLeft = 0;
Chris@1040:             }
Chris@1040: 
Chris@1040:             int targetWidth = scaledRightCrop - targetLeft;
Chris@1040:             if (targetLeft + targetWidth > cache.getSize().width()) {
Chris@1040:                 targetWidth = cache.getSize().width() - targetLeft;
Chris@1040:             }
Chris@1031:             
Chris@1040:             int sourceLeft = targetLeft - scaledLeft;
Chris@1040:             if (sourceLeft < 0) {
Chris@1040:                 sourceLeft = 0;
Chris@1040:             }
Chris@1040:             
Chris@1040:             int sourceWidth = targetWidth;
Chris@1040: 
Chris@1040:             if (targetWidth > 0) {
Chris@1040:                 cache.drawImage
Chris@1040:                     (targetLeft,
Chris@1040:                      targetWidth,
Chris@1040:                      scaled,
Chris@1040:                      sourceLeft,
Chris@1040:                      sourceWidth);
Chris@1040:             }
Chris@1024: 
Chris@481:         } else {
Chris@1024: 
Chris@1031:             cache.drawImage(paintedLeft, paintedWidth,
Chris@1030:                             m_drawBuffer,
Chris@1031:                             paintedLeft - x0, paintedWidth);
Chris@481:         }
Chris@331:     }
Chris@331: 
Chris@1026: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1030:     cerr << "SpectrogramLayer: Cache valid area now from " << cache.getValidLeft()
Chris@1030:          << " width " << cache.getValidWidth() << ", height "
Chris@1030:          << cache.getSize().height() << endl;
Chris@1026: #endif
Chris@1030: 
Chris@1030:     QRect pr = rect & cache.getValidArea();
Chris@337: 
Chris@337: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer: Copying " << pr.width() << "x" << pr.height()
Chris@337:               << " from cache at " << pr.x() << "," << pr.y()
Chris@585:               << " to window" << endl;
Chris@337: #endif
Chris@337: 
Chris@1030:     paint.drawImage(pr.x(), pr.y(), cache.getImage(),
Chris@479:                     pr.x(), pr.y(), pr.width(), pr.height());
Chris@337: 
Chris@389:     if (!m_synchronous) {
Chris@389: 
Chris@862:         if ((m_normalization != NormalizeVisibleArea) || !overallMagChanged) {
Chris@1031: 
Chris@1031:             QRect areaLeft(0, 0, cache.getValidLeft(), h);
Chris@1031:             QRect areaRight(cache.getValidRight(), 0,
Chris@1031:                             cache.getSize().width() - cache.getValidRight(), h);
Chris@1031: 
Chris@1031:             bool haveSpaceLeft = (areaLeft.width() > 0);
Chris@1031:             bool haveSpaceRight = (areaRight.width() > 0);
Chris@1031: 
Chris@1031:             bool updateLeft = haveSpaceLeft;
Chris@1031:             bool updateRight = haveSpaceRight;
Chris@1031:             
Chris@1031:             if (updateLeft && updateRight) {
Chris@1031:                 if (rightToLeft) {
Chris@1031:                     // we just did something adjoining the cache on
Chris@1031:                     // its left side, so now do something on its right
Chris@1031:                     updateLeft = false;
Chris@1031:                 } else {
Chris@1031:                     updateRight = false;
Chris@1031:                 }
Chris@389:             }
Chris@389:             
Chris@1031:             if (updateLeft) {
Chris@1031: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1031:                 cerr << "SpectrogramLayer::paint() updating left ("
Chris@1031:                      << areaLeft.x() << ", "
Chris@1031:                      << areaLeft.width() << ")" << endl;
Chris@1031: #endif
Chris@1031:                 v->updatePaintRect(areaLeft);
Chris@1031:             }
Chris@1031:             
Chris@1031:             if (updateRight) {
Chris@389: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:                 cerr << "SpectrogramLayer::paint() updating right ("
Chris@1031:                      << areaRight.x() << ", "
Chris@1031:                      << areaRight.width() << ")" << endl;
Chris@389: #endif
Chris@1031:                 v->updatePaintRect(areaRight);
Chris@389:             }
Chris@1031:             
Chris@389:         } else {
Chris@389:             // overallMagChanged
Chris@682:             cerr << "\noverallMagChanged - updating all\n" << endl;
Chris@1030:             cache.invalidate();
Chris@1030:             v->updatePaintRect(v->getPaintRect());
Chris@119:         }
Chris@95:     }
Chris@0: 
Chris@121:     illuminateLocalFeatures(v, paint);
Chris@120: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:     cerr << "SpectrogramLayer::paint() returning" << endl;
Chris@0: #endif
Chris@0: }
Chris@0: 
Chris@1024: int
Chris@918: SpectrogramLayer::paintDrawBufferPeakFrequencies(LayerGeometryProvider *v,
Chris@488:                                                  int w,
Chris@488:                                                  int h,
Chris@907:                                                  const vector<int> &binforx,
Chris@488:                                                  int minbin,
Chris@488:                                                  int maxbin,
Chris@905:                                                  double displayMinFreq,
Chris@905:                                                  double displayMaxFreq,
Chris@491:                                                  bool logarithmic,
Chris@491:                                                  MagnitudeRange &overallMag,
Chris@1026:                                                  bool &overallMagChanged,
Chris@1039:                                                  bool rightToLeft,
Chris@1039:                                                  double softTimeLimit) const
Chris@488: {
Chris@488:     Profiler profiler("SpectrogramLayer::paintDrawBufferPeakFrequencies");
Chris@488: 
Chris@488: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer::paintDrawBufferPeakFrequencies: minbin " << minbin << ", maxbin " << maxbin << "; w " << w << ", h " << h << endl;
Chris@488: #endif
Chris@488:     if (minbin < 0) minbin = 0;
Chris@488:     if (maxbin < 0) maxbin = minbin+1;
Chris@488: 
Chris@488:     FFTModel *fft = getFFTModel(v);
Chris@1024:     if (!fft) return 0;
Chris@488: 
Chris@488:     FFTModel::PeakSet peakfreqs;
Chris@488: 
Chris@848:     int psx = -1;
Chris@545: 
Chris@545: #ifdef __GNUC__
Chris@488:     float values[maxbin - minbin + 1];
Chris@545: #else
Chris@545:     float *values = (float *)alloca((maxbin - minbin + 1) * sizeof(float));
Chris@545: #endif
Chris@488: 
Chris@1027:     int minColumns = 4;
Chris@1039:     bool haveTimeLimits = (softTimeLimit > 0.0);
Chris@1037:     double hardTimeLimit = softTimeLimit * 2.0;
Chris@1037:     bool overridingSoftLimit = false;
Chris@1027:     auto startTime = chrono::steady_clock::now();
Chris@1027:     
Chris@1026:     int start = 0;
Chris@1026:     int finish = w;
Chris@1026:     int step = 1;
Chris@1026: 
Chris@1026:     if (rightToLeft) {
Chris@1026:         start = w-1;
Chris@1026:         finish = -1;
Chris@1026:         step = -1;
Chris@1026:     }
Chris@1026:     
Chris@1027:     int columnCount = 0;
Chris@1027:     
Chris@1026:     for (int x = start; x != finish; x += step) {
Chris@488:         
Chris@1027:         ++columnCount;
Chris@1027:         
Chris@488:         if (binforx[x] < 0) continue;
Chris@488: 
Chris@488:         int sx0 = binforx[x];
Chris@488:         int sx1 = sx0;
Chris@488:         if (x+1 < w) sx1 = binforx[x+1];
Chris@488:         if (sx0 < 0) sx0 = sx1 - 1;
Chris@488:         if (sx0 < 0) continue;
Chris@488:         if (sx1 <= sx0) sx1 = sx0 + 1;
Chris@488: 
Chris@488:         for (int sx = sx0; sx < sx1; ++sx) {
Chris@488: 
Chris@488:             if (sx < 0 || sx >= int(fft->getWidth())) continue;
Chris@488: 
Chris@488:             MagnitudeRange mag;
Chris@488: 
Chris@488:             if (sx != psx) {
Chris@488:                 peakfreqs = fft->getPeakFrequencies(FFTModel::AllPeaks, sx,
Chris@488:                                                     minbin, maxbin - 1);
Chris@488:                 if (m_colourScale == PhaseColourScale) {
Chris@488:                     fft->getPhasesAt(sx, values, minbin, maxbin - minbin + 1);
Chris@862:                 } else if (m_normalization == NormalizeColumns) {
Chris@488:                     fft->getNormalizedMagnitudesAt(sx, values, minbin, maxbin - minbin + 1);
Chris@862:                 } else if (m_normalization == NormalizeHybrid) {
Chris@719:                     fft->getNormalizedMagnitudesAt(sx, values, minbin, maxbin - minbin + 1);
Chris@905:                     double max = fft->getMaximumMagnitudeAt(sx);
Chris@719:                     if (max > 0.f) {
Chris@719:                         for (int i = minbin; i <= maxbin; ++i) {
Chris@907:                             values[i - minbin] = float(values[i - minbin] * log10(max));
Chris@719:                         }
Chris@719:                     }
Chris@488:                 } else {
Chris@488:                     fft->getMagnitudesAt(sx, values, minbin, maxbin - minbin + 1);
Chris@488:                 }
Chris@488:                 psx = sx;
Chris@488:             }
Chris@488: 
Chris@488:             for (FFTModel::PeakSet::const_iterator pi = peakfreqs.begin();
Chris@488:                  pi != peakfreqs.end(); ++pi) {
Chris@488: 
Chris@488:                 int bin = pi->first;
Chris@907:                 double freq = pi->second;
Chris@488: 
Chris@488:                 if (bin < minbin) continue;
Chris@488:                 if (bin > maxbin) break;
Chris@488: 
Chris@907:                 double value = values[bin - minbin];
Chris@488: 
Chris@488:                 if (m_colourScale != PhaseColourScale) {
Chris@862:                     if (m_normalization != NormalizeColumns) {
Chris@907:                         value /= (m_fftSize/2.0);
Chris@488:                     }
Chris@907:                     mag.sample(float(value));
Chris@488:                     value *= m_gain;
Chris@488:                 }
Chris@488: 
Chris@905:                 double y = v->getYForFrequency
Chris@488:                     (freq, displayMinFreq, displayMaxFreq, logarithmic);
Chris@488: 
Chris@558:                 int iy = int(y + 0.5);
Chris@558:                 if (iy < 0 || iy >= h) continue;
Chris@558: 
Chris@558:                 m_drawBuffer.setPixel(x, iy, getDisplayValue(v, value));
Chris@488:             }
Chris@488: 
Chris@488:             if (mag.isSet()) {
Chris@488:                 if (sx >= int(m_columnMags.size())) {
Chris@540: #ifdef DEBUG_SPECTROGRAM
Chris@682:                     cerr << "INTERNAL ERROR: " << sx << " >= "
Chris@488:                               << m_columnMags.size()
Chris@488:                               << " at SpectrogramLayer.cpp::paintDrawBuffer"
Chris@682:                               << endl;
Chris@540: #endif
Chris@490:                 } else {
Chris@490:                     m_columnMags[sx].sample(mag);
Chris@491:                     if (overallMag.sample(mag)) overallMagChanged = true;
Chris@488:                 }
Chris@488:             }
Chris@488:         }
Chris@1027: 
Chris@1039:         if (haveTimeLimits) {
Chris@1027:             if (columnCount >= minColumns) {
Chris@1027:                 auto t = chrono::steady_clock::now();
Chris@1027:                 double diff = chrono::duration<double>(t - startTime).count();
Chris@1037:                 if (diff > hardTimeLimit) {
Chris@1027: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1037:                     cerr << "SpectrogramLayer::paintDrawBufferPeakFrequencies: hard limit " << hardTimeLimit << " sec exceeded after "
Chris@1031:                          << columnCount << " columns with time " << diff << endl;
Chris@1027: #endif
Chris@1027:                     return columnCount;
Chris@1037:                 } else if (diff > softTimeLimit && !overridingSoftLimit) {
Chris@1037:                     // If we're more than half way through by the time
Chris@1037:                     // we reach the soft limit, ignore it (though
Chris@1037:                     // still respect the hard limit, above). Otherwise
Chris@1037:                     // respect the soft limit and return now.
Chris@1037:                     if (columnCount > w/2) {
Chris@1037:                         overridingSoftLimit = true;
Chris@1037:                     } else {
Chris@1037: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1037:                         cerr << "SpectrogramLayer::paintDrawBufferPeakFrequencies: soft limit " << softTimeLimit << " sec exceeded after "
Chris@1037:                              << columnCount << " columns with time " << diff << endl;
Chris@1037: #endif
Chris@1037:                         return columnCount;
Chris@1037:                     }
Chris@1037:                 }                        
Chris@1027:             }
Chris@1027:         }
Chris@488:     }
Chris@1024: 
Chris@1027:     return columnCount;
Chris@488: }
Chris@488: 
Chris@1024: int
Chris@918: SpectrogramLayer::paintDrawBuffer(LayerGeometryProvider *v,
Chris@481:                                   int w,
Chris@481:                                   int h,
Chris@907:                                   const vector<int> &binforx,
Chris@907:                                   const vector<double> &binfory,
Chris@491:                                   bool usePeaksCache,
Chris@491:                                   MagnitudeRange &overallMag,
Chris@1026:                                   bool &overallMagChanged,
Chris@1039:                                   bool rightToLeft,
Chris@1039:                                   double softTimeLimit) const
Chris@480: {
Chris@481:     Profiler profiler("SpectrogramLayer::paintDrawBuffer");
Chris@480: 
Chris@490:     int minbin = int(binfory[0] + 0.0001);
Chris@907:     int maxbin = int(binfory[h-1]);
Chris@480: 
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer::paintDrawBuffer: minbin " << minbin << ", maxbin " << maxbin << "; w " << w << ", h " << h << endl;
Chris@485: #endif
Chris@480:     if (minbin < 0) minbin = 0;
Chris@480:     if (maxbin < 0) maxbin = minbin+1;
Chris@480: 
Chris@484:     DenseThreeDimensionalModel *sourceModel = 0;
Chris@484:     FFTModel *fft = 0;
Chris@484:     int divisor = 1;
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026:     cerr << "SpectrogramLayer::paintDrawBuffer: Note: bin display = " << m_binDisplay << ", w = " << w << ", binforx[" << w-1 << "] = " << binforx[w-1] << ", binforx[0] = " << binforx[0] << endl;
Chris@485: #endif
Chris@484:     if (usePeaksCache) { //!!!
Chris@484:         sourceModel = getPeakCache(v);
Chris@484:         divisor = 8;//!!!
Chris@484:         minbin = 0;
Chris@484:         maxbin = sourceModel->getHeight();
Chris@484:     } else {
Chris@484:         sourceModel = fft = getFFTModel(v);
Chris@484:     }
Chris@484: 
Chris@1024:     if (!sourceModel) return 0;
Chris@484: 
Chris@490:     bool interpolate = false;
Chris@490:     Preferences::SpectrogramSmoothing smoothing = 
Chris@490:         Preferences::getInstance()->getSpectrogramSmoothing();
Chris@490:     if (smoothing == Preferences::SpectrogramInterpolated ||
Chris@490:         smoothing == Preferences::SpectrogramZeroPaddedAndInterpolated) {
Chris@490:         if (m_binDisplay != PeakBins &&
Chris@490:             m_binDisplay != PeakFrequencies) {
Chris@490:             interpolate = true;
Chris@490:         }
Chris@490:     }
Chris@490: 
Chris@480:     int psx = -1;
Chris@545: 
Chris@545: #ifdef __GNUC__
Chris@490:     float autoarray[maxbin - minbin + 1];
Chris@545:     float peaks[h];
Chris@545: #else
Chris@545:     float *autoarray = (float *)alloca((maxbin - minbin + 1) * sizeof(float));
Chris@545:     float *peaks = (float *)alloca(h * sizeof(float));
Chris@545: #endif
Chris@545: 
Chris@490:     const float *values = autoarray;
Chris@484:     DenseThreeDimensionalModel::Column c;
Chris@480: 
Chris@1027:     int minColumns = 4;
Chris@1039:     bool haveTimeLimits = (softTimeLimit > 0.0);
Chris@1037:     double hardTimeLimit = softTimeLimit * 2.0;
Chris@1037:     bool overridingSoftLimit = false;
Chris@1027:     auto startTime = chrono::steady_clock::now();
Chris@1027:     
Chris@1026:     int start = 0;
Chris@1026:     int finish = w;
Chris@1026:     int step = 1;
Chris@1026: 
Chris@1026:     if (rightToLeft) {
Chris@1026:         start = w-1;
Chris@1026:         finish = -1;
Chris@1026:         step = -1;
Chris@1026:     }
Chris@1027: 
Chris@1027:     int columnCount = 0;
Chris@1026:     
Chris@1026:     for (int x = start; x != finish; x += step) {
Chris@1027: 
Chris@1027:         ++columnCount;
Chris@480:         
Chris@482:         if (binforx[x] < 0) continue;
Chris@482: 
Chris@488: //        float columnGain = m_gain;
Chris@487:         float columnMax = 0.f;
Chris@487: 
Chris@484:         int sx0 = binforx[x] / divisor;
Chris@483:         int sx1 = sx0;
Chris@484:         if (x+1 < w) sx1 = binforx[x+1] / divisor;
Chris@483:         if (sx0 < 0) sx0 = sx1 - 1;
Chris@483:         if (sx0 < 0) continue;
Chris@483:         if (sx1 <= sx0) sx1 = sx0 + 1;
Chris@483: 
Chris@483:         for (int y = 0; y < h; ++y) peaks[y] = 0.f;
Chris@480:             
Chris@483:         for (int sx = sx0; sx < sx1; ++sx) {
Chris@483: 
Chris@518: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@682: //            cerr << "sx = " << sx << endl;
Chris@518: #endif
Chris@518: 
Chris@484:             if (sx < 0 || sx >= int(sourceModel->getWidth())) continue;
Chris@483: 
Chris@488:             MagnitudeRange mag;
Chris@488: 
Chris@483:             if (sx != psx) {
Chris@484:                 if (fft) {
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026: //                    cerr << "Retrieving column " << sx << " from fft directly" << endl;
Chris@485: #endif
Chris@487:                     if (m_colourScale == PhaseColourScale) {
Chris@490:                         fft->getPhasesAt(sx, autoarray, minbin, maxbin - minbin + 1);
Chris@862:                     } else if (m_normalization == NormalizeColumns) {
Chris@490:                         fft->getNormalizedMagnitudesAt(sx, autoarray, minbin, maxbin - minbin + 1);
Chris@862:                     } else if (m_normalization == NormalizeHybrid) {
Chris@719:                         fft->getNormalizedMagnitudesAt(sx, autoarray, minbin, maxbin - minbin + 1);
Chris@988:                         float max = fft->getMaximumMagnitudeAt(sx);
Chris@988:                         float scale = log10f(max + 1.f);
Chris@998: //                        cout << "sx = " << sx << ", max = " << max << ", log10(max) = " << log10(max) << ", scale = " << scale << endl;
Chris@719:                         for (int i = minbin; i <= maxbin; ++i) {
Chris@862:                             autoarray[i - minbin] *= scale;
Chris@719:                         }
Chris@487:                     } else {
Chris@490:                         fft->getMagnitudesAt(sx, autoarray, minbin, maxbin - minbin + 1);
Chris@487:                     }
Chris@484:                 } else {
Chris@485: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1026: //                    cerr << "Retrieving column " << sx << " from peaks cache" << endl;
Chris@485: #endif
Chris@484:                     c = sourceModel->getColumn(sx);
Chris@862:                     if (m_normalization == NormalizeColumns ||
Chris@862:                         m_normalization == NormalizeHybrid) {
Chris@487:                         for (int y = 0; y < h; ++y) {
Chris@487:                             if (c[y] > columnMax) columnMax = c[y];
Chris@487:                         }
Chris@487:                     }
Chris@1019:                     values = c.data() + minbin;
Chris@484:                 }
Chris@483:                 psx = sx;
Chris@483:             }
Chris@483: 
Chris@483:             for (int y = 0; y < h; ++y) {
Chris@480: 
Chris@905:                 double sy0 = binfory[y];
Chris@905:                 double sy1 = sy0 + 1;
Chris@481:                 if (y+1 < h) sy1 = binfory[y+1];
Chris@490: 
Chris@907:                 double value = 0.0;
Chris@907: 
Chris@907:                 if (interpolate && fabs(sy1 - sy0) < 1.0) {
Chris@490: 
Chris@905:                     double centre = (sy0 + sy1) / 2;
Chris@907:                     double dist = (centre - 0.5) - rint(centre - 0.5);
Chris@490:                     int bin = int(centre);
Chris@490:                     int other = (dist < 0 ? (bin-1) : (bin+1));
Chris@490:                     if (bin < minbin) bin = minbin;
Chris@490:                     if (bin > maxbin) bin = maxbin;
Chris@490:                     if (other < minbin || other > maxbin) other = bin;
Chris@907:                     double prop = 1.0 - fabs(dist);
Chris@905: 
Chris@905:                     double v0 = values[bin - minbin];
Chris@905:                     double v1 = values[other - minbin];
Chris@490:                     if (m_binDisplay == PeakBins) {
Chris@490:                         if (bin == minbin || bin == maxbin ||
Chris@490:                             v0 < values[bin-minbin-1] ||
Chris@907:                             v0 < values[bin-minbin+1]) v0 = 0.0;
Chris@490:                         if (other == minbin || other == maxbin ||
Chris@490:                             v1 < values[other-minbin-1] ||
Chris@907:                             v1 < values[other-minbin+1]) v1 = 0.0;
Chris@489:                     }
Chris@907:                     if (v0 == 0.0 && v1 == 0.0) continue;
Chris@907:                     value = prop * v0 + (1.0 - prop) * v1;
Chris@484: 
Chris@488:                     if (m_colourScale != PhaseColourScale) {
Chris@862:                         if (m_normalization != NormalizeColumns &&
Chris@862:                             m_normalization != NormalizeHybrid) {
Chris@907:                             value /= (m_fftSize/2.0);
Chris@488:                         }
Chris@907:                         mag.sample(float(value));
Chris@488:                         value *= m_gain;
Chris@488:                     }
Chris@488: 
Chris@907:                     peaks[y] = float(value);
Chris@490: 
Chris@490:                 } else {                    
Chris@490: 
Chris@490:                     int by0 = int(sy0 + 0.0001);
Chris@490:                     int by1 = int(sy1 + 0.0001);
Chris@490:                     if (by1 < by0 + 1) by1 = by0 + 1;
Chris@490: 
Chris@490:                     for (int bin = by0; bin < by1; ++bin) {
Chris@490: 
Chris@490:                         value = values[bin - minbin];
Chris@490:                         if (m_binDisplay == PeakBins) {
Chris@490:                             if (bin == minbin || bin == maxbin ||
Chris@490:                                 value < values[bin-minbin-1] ||
Chris@490:                                 value < values[bin-minbin+1]) continue;
Chris@480:                         }
Chris@490: 
Chris@490:                         if (m_colourScale != PhaseColourScale) {
Chris@862:                             if (m_normalization != NormalizeColumns &&
Chris@862:                                 m_normalization != NormalizeHybrid) {
Chris@907:                                 value /= (m_fftSize/2.0);
Chris@490:                             }
Chris@907:                             mag.sample(float(value));
Chris@490:                             value *= m_gain;
Chris@490:                         }
Chris@490: 
Chris@907:                         if (value > peaks[y]) {
Chris@907:                             peaks[y] = float(value); //!!! not right for phase!
Chris@907:                         }
Chris@480:                     }
Chris@480:                 }
Chris@483:             }
Chris@488: 
Chris@488:             if (mag.isSet()) {
Chris@488:                 if (sx >= int(m_columnMags.size())) {
Chris@540: #ifdef DEBUG_SPECTROGRAM
Chris@682:                     cerr << "INTERNAL ERROR: " << sx << " >= "
Chris@488:                               << m_columnMags.size()
Chris@488:                               << " at SpectrogramLayer.cpp::paintDrawBuffer"
Chris@682:                               << endl;
Chris@540: #endif
Chris@490:                 } else {
Chris@490:                     m_columnMags[sx].sample(mag);
Chris@491:                     if (overallMag.sample(mag)) overallMagChanged = true;
Chris@488:                 }
Chris@488:             }
Chris@483:         }
Chris@483: 
Chris@483:         for (int y = 0; y < h; ++y) {
Chris@483: 
Chris@905:             double peak = peaks[y];
Chris@483:             
Chris@488:             if (m_colourScale != PhaseColourScale &&
Chris@862:                 (m_normalization == NormalizeColumns ||
Chris@862:                  m_normalization == NormalizeHybrid) &&
Chris@488:                 columnMax > 0.f) {
Chris@488:                 peak /= columnMax;
Chris@862:                 if (m_normalization == NormalizeHybrid) {
Chris@862:                     peak *= log10(columnMax + 1.f);
Chris@719:                 }
Chris@480:             }
Chris@483:             
Chris@483:             unsigned char peakpix = getDisplayValue(v, peak);
Chris@480: 
Chris@480:             m_drawBuffer.setPixel(x, h-y-1, peakpix);
Chris@480:         }
Chris@1025: 
Chris@1039:         if (haveTimeLimits) {
Chris@1027:             if (columnCount >= minColumns) {
Chris@1025:                 auto t = chrono::steady_clock::now();
Chris@1025:                 double diff = chrono::duration<double>(t - startTime).count();
Chris@1037:                 if (diff > hardTimeLimit) {
Chris@1025: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1037:                     cerr << "SpectrogramLayer::paintDrawBuffer: hard limit " << hardTimeLimit << " sec exceeded after "
Chris@1031:                          << columnCount << " columns with time " << diff << endl;
Chris@1025: #endif
Chris@1027:                     return columnCount;
Chris@1037:                 } else if (diff > softTimeLimit && !overridingSoftLimit) {
Chris@1037:                     // If we're more than half way through by the time
Chris@1037:                     // we reach the soft limit, ignore it (though
Chris@1037:                     // still respect the hard limit, above). Otherwise
Chris@1037:                     // respect the soft limit and return now.
Chris@1037:                     if (columnCount > w/2) {
Chris@1037:                         overridingSoftLimit = true;
Chris@1037:                     } else {
Chris@1037: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@1037:                         cerr << "SpectrogramLayer::paintDrawBuffer: soft limit " << softTimeLimit << " sec exceeded after "
Chris@1037:                              << columnCount << " columns with time " << diff << endl;
Chris@1037: #endif
Chris@1037:                         return columnCount;
Chris@1037:                     }
Chris@1037:                 }                        
Chris@1025:             }
Chris@1025:         }
Chris@480:     }
Chris@1024: 
Chris@1027:     return columnCount;
Chris@480: }
Chris@477: 
Chris@121: void
Chris@918: SpectrogramLayer::illuminateLocalFeatures(LayerGeometryProvider *v, QPainter &paint) const
Chris@121: {
Chris@382:     Profiler profiler("SpectrogramLayer::illuminateLocalFeatures");
Chris@382: 
Chris@121:     QPoint localPos;
Chris@121:     if (!v->shouldIlluminateLocalFeatures(this, localPos) || !m_model) {
Chris@121:         return;
Chris@121:     }
Chris@121: 
Chris@682: //    cerr << "SpectrogramLayer: illuminateLocalFeatures("
Chris@682: //              << localPos.x() << "," << localPos.y() << ")" << endl;
Chris@121: 
Chris@905:     double s0, s1;
Chris@905:     double f0, f1;
Chris@121: 
Chris@121:     if (getXBinRange(v, localPos.x(), s0, s1) &&
Chris@121:         getYBinSourceRange(v, localPos.y(), f0, f1)) {
Chris@121:         
Chris@121:         int s0i = int(s0 + 0.001);
Chris@121:         int s1i = int(s1);
Chris@121:         
Chris@121:         int x0 = v->getXForFrame(s0i * getWindowIncrement());
Chris@121:         int x1 = v->getXForFrame((s1i + 1) * getWindowIncrement());
Chris@121: 
Chris@248:         int y1 = int(getYForFrequency(v, f1));
Chris@248:         int y0 = int(getYForFrequency(v, f0));
Chris@121:         
Chris@682: //        cerr << "SpectrogramLayer: illuminate "
Chris@682: //                  << x0 << "," << y1 << " -> " << x1 << "," << y0 << endl;
Chris@121:         
Chris@287:         paint.setPen(v->getForeground());
Chris@133: 
Chris@133:         //!!! should we be using paintCrosshairs for this?
Chris@133: 
Chris@121:         paint.drawRect(x0, y1, x1 - x0 + 1, y0 - y1 + 1);
Chris@121:     }
Chris@121: }
Chris@121: 
Chris@905: double
Chris@918: SpectrogramLayer::getYForFrequency(const LayerGeometryProvider *v, double frequency) const
Chris@42: {
Chris@44:     return v->getYForFrequency(frequency,
Chris@44: 			       getEffectiveMinFrequency(),
Chris@44: 			       getEffectiveMaxFrequency(),
Chris@44: 			       m_frequencyScale == LogFrequencyScale);
Chris@42: }
Chris@42: 
Chris@905: double
Chris@918: SpectrogramLayer::getFrequencyForY(const LayerGeometryProvider *v, int y) const
Chris@42: {
Chris@44:     return v->getFrequencyForY(y,
Chris@44: 			       getEffectiveMinFrequency(),
Chris@44: 			       getEffectiveMaxFrequency(),
Chris@44: 			       m_frequencyScale == LogFrequencyScale);
Chris@42: }
Chris@42: 
Chris@0: int
Chris@918: SpectrogramLayer::getCompletion(LayerGeometryProvider *v) const
Chris@0: {
Chris@920:     const View *view = v->getView();
Chris@920:     
Chris@1030:     if (m_fftModels.find(view->getId()) == m_fftModels.end()) return 100;
Chris@1030: 
Chris@1030:     int completion = m_fftModels[view->getId()]->getCompletion();
Chris@224: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@985:     cerr << "SpectrogramLayer::getCompletion: completion = " << completion << endl;
Chris@224: #endif
Chris@0:     return completion;
Chris@0: }
Chris@0: 
Chris@583: QString
Chris@918: SpectrogramLayer::getError(LayerGeometryProvider *v) const
Chris@583: {
Chris@920:     const View *view = v->getView();
Chris@1030:     if (m_fftModels.find(view->getId()) == m_fftModels.end()) return "";
Chris@1030:     return m_fftModels[view->getId()]->getError();
Chris@583: }
Chris@583: 
Chris@28: bool
Chris@905: SpectrogramLayer::getValueExtents(double &min, double &max,
Chris@101:                                   bool &logarithmic, QString &unit) const
Chris@79: {
Chris@133:     if (!m_model) return false;
Chris@133: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@905:     min = double(sr) / m_fftSize;
Chris@905:     max = double(sr) / 2;
Chris@133:     
Chris@101:     logarithmic = (m_frequencyScale == LogFrequencyScale);
Chris@79:     unit = "Hz";
Chris@79:     return true;
Chris@79: }
Chris@79: 
Chris@79: bool
Chris@905: SpectrogramLayer::getDisplayExtents(double &min, double &max) const
Chris@101: {
Chris@101:     min = getEffectiveMinFrequency();
Chris@101:     max = getEffectiveMaxFrequency();
Chris@253: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::getDisplayExtents: " << min << "->" << max << endl;
Chris@101:     return true;
Chris@101: }    
Chris@101: 
Chris@101: bool
Chris@905: SpectrogramLayer::setDisplayExtents(double min, double max)
Chris@120: {
Chris@120:     if (!m_model) return false;
Chris@187: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::setDisplayExtents: " << min << "->" << max << endl;
Chris@187: 
Chris@120:     if (min < 0) min = 0;
Chris@907:     if (max > m_model->getSampleRate()/2.0) max = m_model->getSampleRate()/2.0;
Chris@120:     
Chris@907:     int minf = int(lrint(min));
Chris@907:     int maxf = int(lrint(max));
Chris@120: 
Chris@120:     if (m_minFrequency == minf && m_maxFrequency == maxf) return true;
Chris@120: 
Chris@478:     invalidateImageCaches();
Chris@120:     invalidateMagnitudes();
Chris@120: 
Chris@120:     m_minFrequency = minf;
Chris@120:     m_maxFrequency = maxf;
Chris@120:     
Chris@120:     emit layerParametersChanged();
Chris@120: 
Chris@133:     int vs = getCurrentVerticalZoomStep();
Chris@133:     if (vs != m_lastEmittedZoomStep) {
Chris@133:         emit verticalZoomChanged();
Chris@133:         m_lastEmittedZoomStep = vs;
Chris@133:     }
Chris@133: 
Chris@120:     return true;
Chris@120: }
Chris@120: 
Chris@120: bool
Chris@918: SpectrogramLayer::getYScaleValue(const LayerGeometryProvider *v, int y,
Chris@905:                                  double &value, QString &unit) const
Chris@261: {
Chris@261:     value = getFrequencyForY(v, y);
Chris@261:     unit = "Hz";
Chris@261:     return true;
Chris@261: }
Chris@261: 
Chris@261: bool
Chris@918: SpectrogramLayer::snapToFeatureFrame(LayerGeometryProvider *,
Chris@907:                                      sv_frame_t &frame,
Chris@805: 				     int &resolution,
Chris@28: 				     SnapType snap) const
Chris@13: {
Chris@13:     resolution = getWindowIncrement();
Chris@907:     sv_frame_t left = (frame / resolution) * resolution;
Chris@907:     sv_frame_t right = left + resolution;
Chris@28: 
Chris@28:     switch (snap) {
Chris@28:     case SnapLeft:  frame = left;  break;
Chris@28:     case SnapRight: frame = right; break;
Chris@28:     case SnapNearest:
Chris@28:     case SnapNeighbouring:
Chris@28: 	if (frame - left > right - frame) frame = right;
Chris@28: 	else frame = left;
Chris@28: 	break;
Chris@28:     }
Chris@28:     
Chris@28:     return true;
Chris@28: } 
Chris@13: 
Chris@283: void
Chris@918: SpectrogramLayer::measureDoubleClick(LayerGeometryProvider *v, QMouseEvent *e)
Chris@283: {
Chris@920:     const View *view = v->getView();
Chris@1030:     ScrollableImageCache &cache = getImageCacheReference(view);
Chris@1030: 
Chris@1030:     cerr << "cache width: " << cache.getSize().width() << ", height: "
Chris@1030:          << cache.getSize().height() << endl;
Chris@1030: 
Chris@1030:     QImage image = cache.getImage();
Chris@283: 
Chris@283:     ImageRegionFinder finder;
Chris@283:     QRect rect = finder.findRegionExtents(&image, e->pos());
Chris@283:     if (rect.isValid()) {
Chris@283:         MeasureRect mr;
Chris@283:         setMeasureRectFromPixrect(v, mr, rect);
Chris@283:         CommandHistory::getInstance()->addCommand
Chris@283:             (new AddMeasurementRectCommand(this, mr));
Chris@283:     }
Chris@283: }
Chris@283: 
Chris@77: bool
Chris@918: SpectrogramLayer::getCrosshairExtents(LayerGeometryProvider *v, QPainter &paint,
Chris@77:                                       QPoint cursorPos,
Chris@1025:                                       vector<QRect> &extents) const
Chris@77: {
Chris@918:     QRect vertical(cursorPos.x() - 12, 0, 12, v->getPaintHeight());
Chris@77:     extents.push_back(vertical);
Chris@77: 
Chris@77:     QRect horizontal(0, cursorPos.y(), cursorPos.x(), 1);
Chris@77:     extents.push_back(horizontal);
Chris@77: 
Chris@608:     int sw = getVerticalScaleWidth(v, m_haveDetailedScale, paint);
Chris@264: 
Chris@280:     QRect freq(sw, cursorPos.y() - paint.fontMetrics().ascent() - 2,
Chris@280:                paint.fontMetrics().width("123456 Hz") + 2,
Chris@280:                paint.fontMetrics().height());
Chris@280:     extents.push_back(freq);
Chris@264: 
Chris@279:     QRect pitch(sw, cursorPos.y() + 2,
Chris@279:                 paint.fontMetrics().width("C#10+50c") + 2,
Chris@279:                 paint.fontMetrics().height());
Chris@279:     extents.push_back(pitch);
Chris@279: 
Chris@280:     QRect rt(cursorPos.x(),
Chris@918:              v->getPaintHeight() - paint.fontMetrics().height() - 2,
Chris@280:              paint.fontMetrics().width("1234.567 s"),
Chris@280:              paint.fontMetrics().height());
Chris@280:     extents.push_back(rt);
Chris@280: 
Chris@280:     int w(paint.fontMetrics().width("1234567890") + 2);
Chris@280:     QRect frame(cursorPos.x() - w - 2,
Chris@918:                 v->getPaintHeight() - paint.fontMetrics().height() - 2,
Chris@280:                 w,
Chris@280:                 paint.fontMetrics().height());
Chris@280:     extents.push_back(frame);
Chris@280: 
Chris@77:     return true;
Chris@77: }
Chris@77: 
Chris@77: void
Chris@918: SpectrogramLayer::paintCrosshairs(LayerGeometryProvider *v, QPainter &paint,
Chris@77:                                   QPoint cursorPos) const
Chris@77: {
Chris@77:     paint.save();
Chris@283: 
Chris@608:     int sw = getVerticalScaleWidth(v, m_haveDetailedScale, paint);
Chris@283: 
Chris@282:     QFont fn = paint.font();
Chris@282:     if (fn.pointSize() > 8) {
Chris@282:         fn.setPointSize(fn.pointSize() - 1);
Chris@282:         paint.setFont(fn);
Chris@282:     }
Chris@77:     paint.setPen(m_crosshairColour);
Chris@77: 
Chris@77:     paint.drawLine(0, cursorPos.y(), cursorPos.x() - 1, cursorPos.y());
Chris@918:     paint.drawLine(cursorPos.x(), 0, cursorPos.x(), v->getPaintHeight());
Chris@77:     
Chris@905:     double fundamental = getFrequencyForY(v, cursorPos.y());
Chris@77: 
Chris@278:     v->drawVisibleText(paint,
Chris@278:                        sw + 2,
Chris@278:                        cursorPos.y() - 2,
Chris@278:                        QString("%1 Hz").arg(fundamental),
Chris@278:                        View::OutlinedText);
Chris@278: 
Chris@279:     if (Pitch::isFrequencyInMidiRange(fundamental)) {
Chris@279:         QString pitchLabel = Pitch::getPitchLabelForFrequency(fundamental);
Chris@279:         v->drawVisibleText(paint,
Chris@279:                            sw + 2,
Chris@279:                            cursorPos.y() + paint.fontMetrics().ascent() + 2,
Chris@279:                            pitchLabel,
Chris@279:                            View::OutlinedText);
Chris@279:     }
Chris@279: 
Chris@907:     sv_frame_t frame = v->getFrameForX(cursorPos.x());
Chris@279:     RealTime rt = RealTime::frame2RealTime(frame, m_model->getSampleRate());
Chris@280:     QString rtLabel = QString("%1 s").arg(rt.toText(true).c_str());
Chris@280:     QString frameLabel = QString("%1").arg(frame);
Chris@280:     v->drawVisibleText(paint,
Chris@280:                        cursorPos.x() - paint.fontMetrics().width(frameLabel) - 2,
Chris@918:                        v->getPaintHeight() - 2,
Chris@280:                        frameLabel,
Chris@280:                        View::OutlinedText);
Chris@280:     v->drawVisibleText(paint,
Chris@280:                        cursorPos.x() + 2,
Chris@918:                        v->getPaintHeight() - 2,
Chris@280:                        rtLabel,
Chris@280:                        View::OutlinedText);
Chris@264: 
Chris@77:     int harmonic = 2;
Chris@77: 
Chris@77:     while (harmonic < 100) {
Chris@77: 
Chris@907:         int hy = int(lrint(getYForFrequency(v, fundamental * harmonic)));
Chris@918:         if (hy < 0 || hy > v->getPaintHeight()) break;
Chris@77:         
Chris@77:         int len = 7;
Chris@77: 
Chris@77:         if (harmonic % 2 == 0) {
Chris@77:             if (harmonic % 4 == 0) {
Chris@77:                 len = 12;
Chris@77:             } else {
Chris@77:                 len = 10;
Chris@77:             }
Chris@77:         }
Chris@77: 
Chris@77:         paint.drawLine(cursorPos.x() - len,
Chris@907:                        hy,
Chris@77:                        cursorPos.x(),
Chris@907:                        hy);
Chris@77: 
Chris@77:         ++harmonic;
Chris@77:     }
Chris@77: 
Chris@77:     paint.restore();
Chris@77: }
Chris@77: 
Chris@25: QString
Chris@918: SpectrogramLayer::getFeatureDescription(LayerGeometryProvider *v, QPoint &pos) const
Chris@25: {
Chris@25:     int x = pos.x();
Chris@25:     int y = pos.y();
Chris@0: 
Chris@25:     if (!m_model || !m_model->isOK()) return "";
Chris@0: 
Chris@905:     double magMin = 0, magMax = 0;
Chris@905:     double phaseMin = 0, phaseMax = 0;
Chris@905:     double freqMin = 0, freqMax = 0;
Chris@905:     double adjFreqMin = 0, adjFreqMax = 0;
Chris@25:     QString pitchMin, pitchMax;
Chris@0:     RealTime rtMin, rtMax;
Chris@0: 
Chris@38:     bool haveValues = false;
Chris@0: 
Chris@44:     if (!getXBinSourceRange(v, x, rtMin, rtMax)) {
Chris@38: 	return "";
Chris@38:     }
Chris@44:     if (getXYBinSourceRange(v, x, y, magMin, magMax, phaseMin, phaseMax)) {
Chris@38: 	haveValues = true;
Chris@38:     }
Chris@0: 
Chris@35:     QString adjFreqText = "", adjPitchText = "";
Chris@35: 
Chris@38:     if (m_binDisplay == PeakFrequencies) {
Chris@35: 
Chris@44: 	if (!getAdjustedYBinSourceRange(v, x, y, freqMin, freqMax,
Chris@38: 					adjFreqMin, adjFreqMax)) {
Chris@38: 	    return "";
Chris@38: 	}
Chris@35: 
Chris@35: 	if (adjFreqMin != adjFreqMax) {
Chris@65: 	    adjFreqText = tr("Peak Frequency:\t%1 - %2 Hz\n")
Chris@35: 		.arg(adjFreqMin).arg(adjFreqMax);
Chris@35: 	} else {
Chris@65: 	    adjFreqText = tr("Peak Frequency:\t%1 Hz\n")
Chris@35: 		.arg(adjFreqMin);
Chris@38: 	}
Chris@38: 
Chris@38: 	QString pmin = Pitch::getPitchLabelForFrequency(adjFreqMin);
Chris@38: 	QString pmax = Pitch::getPitchLabelForFrequency(adjFreqMax);
Chris@38: 
Chris@38: 	if (pmin != pmax) {
Chris@65: 	    adjPitchText = tr("Peak Pitch:\t%3 - %4\n").arg(pmin).arg(pmax);
Chris@38: 	} else {
Chris@65: 	    adjPitchText = tr("Peak Pitch:\t%2\n").arg(pmin);
Chris@35: 	}
Chris@35: 
Chris@35:     } else {
Chris@35: 	
Chris@44: 	if (!getYBinSourceRange(v, y, freqMin, freqMax)) return "";
Chris@35:     }
Chris@35: 
Chris@25:     QString text;
Chris@25: 
Chris@25:     if (rtMin != rtMax) {
Chris@25: 	text += tr("Time:\t%1 - %2\n")
Chris@25: 	    .arg(rtMin.toText(true).c_str())
Chris@25: 	    .arg(rtMax.toText(true).c_str());
Chris@25:     } else {
Chris@25: 	text += tr("Time:\t%1\n")
Chris@25: 	    .arg(rtMin.toText(true).c_str());
Chris@0:     }
Chris@0: 
Chris@25:     if (freqMin != freqMax) {
Chris@65: 	text += tr("%1Bin Frequency:\t%2 - %3 Hz\n%4Bin Pitch:\t%5 - %6\n")
Chris@65: 	    .arg(adjFreqText)
Chris@25: 	    .arg(freqMin)
Chris@25: 	    .arg(freqMax)
Chris@65: 	    .arg(adjPitchText)
Chris@65: 	    .arg(Pitch::getPitchLabelForFrequency(freqMin))
Chris@65: 	    .arg(Pitch::getPitchLabelForFrequency(freqMax));
Chris@65:     } else {
Chris@65: 	text += tr("%1Bin Frequency:\t%2 Hz\n%3Bin Pitch:\t%4\n")
Chris@35: 	    .arg(adjFreqText)
Chris@25: 	    .arg(freqMin)
Chris@65: 	    .arg(adjPitchText)
Chris@65: 	    .arg(Pitch::getPitchLabelForFrequency(freqMin));
Chris@25:     }	
Chris@25: 
Chris@38:     if (haveValues) {
Chris@905: 	double dbMin = AudioLevel::multiplier_to_dB(magMin);
Chris@905: 	double dbMax = AudioLevel::multiplier_to_dB(magMax);
Chris@43: 	QString dbMinString;
Chris@43: 	QString dbMaxString;
Chris@43: 	if (dbMin == AudioLevel::DB_FLOOR) {
Chris@43: 	    dbMinString = tr("-Inf");
Chris@43: 	} else {
Chris@907: 	    dbMinString = QString("%1").arg(lrint(dbMin));
Chris@43: 	}
Chris@43: 	if (dbMax == AudioLevel::DB_FLOOR) {
Chris@43: 	    dbMaxString = tr("-Inf");
Chris@43: 	} else {
Chris@907: 	    dbMaxString = QString("%1").arg(lrint(dbMax));
Chris@43: 	}
Chris@907: 	if (lrint(dbMin) != lrint(dbMax)) {
Chris@199: 	    text += tr("dB:\t%1 - %2").arg(dbMinString).arg(dbMaxString);
Chris@25: 	} else {
Chris@199: 	    text += tr("dB:\t%1").arg(dbMinString);
Chris@25: 	}
Chris@38: 	if (phaseMin != phaseMax) {
Chris@38: 	    text += tr("\nPhase:\t%1 - %2").arg(phaseMin).arg(phaseMax);
Chris@38: 	} else {
Chris@38: 	    text += tr("\nPhase:\t%1").arg(phaseMin);
Chris@38: 	}
Chris@25:     }
Chris@25: 
Chris@25:     return text;
Chris@0: }
Chris@25: 
Chris@0: int
Chris@40: SpectrogramLayer::getColourScaleWidth(QPainter &paint) const
Chris@40: {
Chris@40:     int cw;
Chris@40: 
Chris@119:     cw = paint.fontMetrics().width("-80dB");
Chris@119: 
Chris@40:     return cw;
Chris@40: }
Chris@40: 
Chris@40: int
Chris@918: SpectrogramLayer::getVerticalScaleWidth(LayerGeometryProvider *, bool detailed, QPainter &paint) const
Chris@0: {
Chris@0:     if (!m_model || !m_model->isOK()) return 0;
Chris@0: 
Chris@607:     int cw = 0;
Chris@607:     if (detailed) cw = getColourScaleWidth(paint);
Chris@40: 
Chris@0:     int tw = paint.fontMetrics().width(QString("%1")
Chris@0: 				     .arg(m_maxFrequency > 0 ?
Chris@0: 					  m_maxFrequency - 1 :
Chris@0: 					  m_model->getSampleRate() / 2));
Chris@0: 
Chris@234:     int fw = paint.fontMetrics().width(tr("43Hz"));
Chris@0:     if (tw < fw) tw = fw;
Chris@40: 
Chris@40:     int tickw = (m_frequencyScale == LogFrequencyScale ? 10 : 4);
Chris@0:     
Chris@40:     return cw + tickw + tw + 13;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@918: SpectrogramLayer::paintVerticalScale(LayerGeometryProvider *v, bool detailed, QPainter &paint, QRect rect) const
Chris@0: {
Chris@0:     if (!m_model || !m_model->isOK()) {
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@382:     Profiler profiler("SpectrogramLayer::paintVerticalScale");
Chris@122: 
Chris@120:     //!!! cache this?
Chris@120: 
Chris@0:     int h = rect.height(), w = rect.width();
Chris@0: 
Chris@40:     int tickw = (m_frequencyScale == LogFrequencyScale ? 10 : 4);
Chris@40:     int pkw = (m_frequencyScale == LogFrequencyScale ? 10 : 0);
Chris@40: 
Chris@805:     int bins = m_fftSize / 2;
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@0: 
Chris@0:     if (m_maxFrequency > 0) {
Chris@107: 	bins = int((double(m_maxFrequency) * m_fftSize) / sr + 0.1);
Chris@107: 	if (bins > m_fftSize / 2) bins = m_fftSize / 2;
Chris@0:     }
Chris@0: 
Chris@607:     int cw = 0;
Chris@607: 
Chris@607:     if (detailed) cw = getColourScaleWidth(paint);
Chris@119:     int cbw = paint.fontMetrics().width("dB");
Chris@40: 
Chris@0:     int py = -1;
Chris@0:     int textHeight = paint.fontMetrics().height();
Chris@0:     int toff = -textHeight + paint.fontMetrics().ascent() + 2;
Chris@0: 
Chris@607:     if (detailed && (h > textHeight * 3 + 10)) {
Chris@119: 
Chris@119:         int topLines = 2;
Chris@119:         if (m_colourScale == PhaseColourScale) topLines = 1;
Chris@119: 
Chris@119: 	int ch = h - textHeight * (topLines + 1) - 8;
Chris@119: //	paint.drawRect(4, textHeight + 4, cw - 1, ch + 1);
Chris@119: 	paint.drawRect(4 + cw - cbw, textHeight * topLines + 4, cbw - 1, ch + 1);
Chris@40: 
Chris@40: 	QString top, bottom;
Chris@1030:         double min = m_viewMags[v->getId()].getMin();
Chris@1030:         double max = m_viewMags[v->getId()].getMax();
Chris@905: 
Chris@905:         double dBmin = AudioLevel::multiplier_to_dB(min);
Chris@905:         double dBmax = AudioLevel::multiplier_to_dB(max);
Chris@119: 
Chris@120:         if (dBmax < -60.f) dBmax = -60.f;
Chris@907:         else top = QString("%1").arg(lrint(dBmax));
Chris@120: 
Chris@120:         if (dBmin < dBmax - 60.f) dBmin = dBmax - 60.f;
Chris@907:         bottom = QString("%1").arg(lrint(dBmin));
Chris@119: 
Chris@119:         //!!! & phase etc
Chris@119: 
Chris@119:         if (m_colourScale != PhaseColourScale) {
Chris@119:             paint.drawText((cw + 6 - paint.fontMetrics().width("dBFS")) / 2,
Chris@119:                            2 + textHeight + toff, "dBFS");
Chris@119:         }
Chris@119: 
Chris@119: //	paint.drawText((cw + 6 - paint.fontMetrics().width(top)) / 2,
Chris@119: 	paint.drawText(3 + cw - cbw - paint.fontMetrics().width(top),
Chris@119: 		       2 + textHeight * topLines + toff + textHeight/2, top);
Chris@119: 
Chris@119: 	paint.drawText(3 + cw - cbw - paint.fontMetrics().width(bottom),
Chris@119: 		       h + toff - 3 - textHeight/2, bottom);
Chris@40: 
Chris@40: 	paint.save();
Chris@40: 	paint.setBrush(Qt::NoBrush);
Chris@119: 
Chris@119:         int lasty = 0;
Chris@119:         int lastdb = 0;
Chris@119: 
Chris@40: 	for (int i = 0; i < ch; ++i) {
Chris@119: 
Chris@905:             double dBval = dBmin + (((dBmax - dBmin) * i) / (ch - 1));
Chris@119:             int idb = int(dBval);
Chris@119: 
Chris@905:             double value = AudioLevel::dB_to_multiplier(dBval);
Chris@119:             int colour = getDisplayValue(v, value * m_gain);
Chris@210: 
Chris@907: 	    paint.setPen(m_palette.getColour((unsigned char)colour));
Chris@119: 
Chris@119:             int y = textHeight * topLines + 4 + ch - i;
Chris@119: 
Chris@119:             paint.drawLine(5 + cw - cbw, y, cw + 2, y);
Chris@119: 
Chris@119:             if (i == 0) {
Chris@119:                 lasty = y;
Chris@119:                 lastdb = idb;
Chris@119:             } else if (i < ch - paint.fontMetrics().ascent() &&
Chris@120:                        idb != lastdb &&
Chris@119:                        ((abs(y - lasty) > textHeight && 
Chris@119:                          idb % 10 == 0) ||
Chris@119:                         (abs(y - lasty) > paint.fontMetrics().ascent() && 
Chris@119:                          idb % 5 == 0))) {
Chris@287:                 paint.setPen(v->getBackground());
Chris@119:                 QString text = QString("%1").arg(idb);
Chris@119:                 paint.drawText(3 + cw - cbw - paint.fontMetrics().width(text),
Chris@119:                                y + toff + textHeight/2, text);
Chris@287:                 paint.setPen(v->getForeground());
Chris@119:                 paint.drawLine(5 + cw - cbw, y, 8 + cw - cbw, y);
Chris@119:                 lasty = y;
Chris@119:                 lastdb = idb;
Chris@119:             }
Chris@40: 	}
Chris@40: 	paint.restore();
Chris@40:     }
Chris@40: 
Chris@40:     paint.drawLine(cw + 7, 0, cw + 7, h);
Chris@40: 
Chris@0:     int bin = -1;
Chris@0: 
Chris@918:     for (int y = 0; y < v->getPaintHeight(); ++y) {
Chris@0: 
Chris@905: 	double q0, q1;
Chris@918: 	if (!getYBinRange(v, v->getPaintHeight() - y, q0, q1)) continue;
Chris@0: 
Chris@0: 	int vy;
Chris@0: 
Chris@0: 	if (int(q0) > bin) {
Chris@0: 	    vy = y;
Chris@0: 	    bin = int(q0);
Chris@0: 	} else {
Chris@0: 	    continue;
Chris@0: 	}
Chris@0: 
Chris@907: 	int freq = int((sr * bin) / m_fftSize);
Chris@0: 
Chris@0: 	if (py >= 0 && (vy - py) < textHeight - 1) {
Chris@40: 	    if (m_frequencyScale == LinearFrequencyScale) {
Chris@40: 		paint.drawLine(w - tickw, h - vy, w, h - vy);
Chris@40: 	    }
Chris@0: 	    continue;
Chris@0: 	}
Chris@0: 
Chris@0: 	QString text = QString("%1").arg(freq);
Chris@234: 	if (bin == 1) text = tr("%1Hz").arg(freq); // bin 0 is DC
Chris@40: 	paint.drawLine(cw + 7, h - vy, w - pkw - 1, h - vy);
Chris@0: 
Chris@0: 	if (h - vy - textHeight >= -2) {
Chris@1025: 	    int tx = w - 3 - paint.fontMetrics().width(text) - max(tickw, pkw);
Chris@0: 	    paint.drawText(tx, h - vy + toff, text);
Chris@0: 	}
Chris@0: 
Chris@0: 	py = vy;
Chris@0:     }
Chris@40: 
Chris@40:     if (m_frequencyScale == LogFrequencyScale) {
Chris@40: 
Chris@277:         // piano keyboard
Chris@277: 
Chris@690:         PianoScale().paintPianoVertical
Chris@690:             (v, paint, QRect(w - pkw - 1, 0, pkw, h),
Chris@690:              getEffectiveMinFrequency(), getEffectiveMaxFrequency());
Chris@40:     }
Chris@608: 
Chris@608:     m_haveDetailedScale = detailed;
Chris@0: }
Chris@0: 
Chris@187: class SpectrogramRangeMapper : public RangeMapper
Chris@187: {
Chris@187: public:
Chris@901:     SpectrogramRangeMapper(sv_samplerate_t sr, int /* fftsize */) :
Chris@901:         m_dist(sr / 2),
Chris@901:         m_s2(sqrt(sqrt(2))) { }
Chris@187:     ~SpectrogramRangeMapper() { }
Chris@187:     
Chris@901:     virtual int getPositionForValue(double value) const {
Chris@901: 
Chris@901:         double dist = m_dist;
Chris@187:     
Chris@187:         int n = 0;
Chris@187: 
Chris@901:         while (dist > (value + 0.00001) && dist > 0.1) {
Chris@187:             dist /= m_s2;
Chris@187:             ++n;
Chris@187:         }
Chris@187: 
Chris@187:         return n;
Chris@187:     }
Chris@724:     
Chris@901:     virtual int getPositionForValueUnclamped(double value) const {
Chris@724:         // We don't really support this
Chris@724:         return getPositionForValue(value);
Chris@724:     }
Chris@187: 
Chris@901:     virtual double getValueForPosition(int position) const {
Chris@187: 
Chris@187:         // Vertical zoom step 0 shows the entire range from DC ->
Chris@187:         // Nyquist frequency.  Step 1 shows 2^(1/4) of the range of
Chris@187:         // step 0, and so on until the visible range is smaller than
Chris@187:         // the frequency step between bins at the current fft size.
Chris@187: 
Chris@901:         double dist = m_dist;
Chris@187:     
Chris@187:         int n = 0;
Chris@187:         while (n < position) {
Chris@187:             dist /= m_s2;
Chris@187:             ++n;
Chris@187:         }
Chris@187: 
Chris@187:         return dist;
Chris@187:     }
Chris@187:     
Chris@901:     virtual double getValueForPositionUnclamped(int position) const {
Chris@724:         // We don't really support this
Chris@724:         return getValueForPosition(position);
Chris@724:     }
Chris@724: 
Chris@187:     virtual QString getUnit() const { return "Hz"; }
Chris@187: 
Chris@187: protected:
Chris@901:     double m_dist;
Chris@901:     double m_s2;
Chris@187: };
Chris@187: 
Chris@133: int
Chris@133: SpectrogramLayer::getVerticalZoomSteps(int &defaultStep) const
Chris@133: {
Chris@135:     if (!m_model) return 0;
Chris@187: 
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@187: 
Chris@187:     SpectrogramRangeMapper mapper(sr, m_fftSize);
Chris@187: 
Chris@905: //    int maxStep = mapper.getPositionForValue((double(sr) / m_fftSize) + 0.001);
Chris@187:     int maxStep = mapper.getPositionForValue(0);
Chris@905:     int minStep = mapper.getPositionForValue(double(sr) / 2);
Chris@250: 
Chris@805:     int initialMax = m_initialMaxFrequency;
Chris@907:     if (initialMax == 0) initialMax = int(sr / 2);
Chris@250: 
Chris@250:     defaultStep = mapper.getPositionForValue(initialMax) - minStep;
Chris@250: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::getVerticalZoomSteps: " << maxStep - minStep << " (" << maxStep <<"-" << minStep << "), default is " << defaultStep << " (from initial max freq " << initialMax << ")" << endl;
Chris@187: 
Chris@187:     return maxStep - minStep;
Chris@133: }
Chris@133: 
Chris@133: int
Chris@133: SpectrogramLayer::getCurrentVerticalZoomStep() const
Chris@133: {
Chris@133:     if (!m_model) return 0;
Chris@133: 
Chris@905:     double dmin, dmax;
Chris@133:     getDisplayExtents(dmin, dmax);
Chris@133:     
Chris@187:     SpectrogramRangeMapper mapper(m_model->getSampleRate(), m_fftSize);
Chris@187:     int n = mapper.getPositionForValue(dmax - dmin);
Chris@587: //    SVDEBUG << "SpectrogramLayer::getCurrentVerticalZoomStep: " << n << endl;
Chris@133:     return n;
Chris@133: }
Chris@133: 
Chris@133: void
Chris@133: SpectrogramLayer::setVerticalZoomStep(int step)
Chris@133: {
Chris@187:     if (!m_model) return;
Chris@187: 
Chris@905:     double dmin = m_minFrequency, dmax = m_maxFrequency;
Chris@253: //    getDisplayExtents(dmin, dmax);
Chris@253: 
Chris@682: //    cerr << "current range " << dmin << " -> " << dmax << ", range " << dmax-dmin << ", mid " << (dmax + dmin)/2 << endl;
Chris@133:     
Chris@907:     sv_samplerate_t sr = m_model->getSampleRate();
Chris@187:     SpectrogramRangeMapper mapper(sr, m_fftSize);
Chris@905:     double newdist = mapper.getValueForPosition(step);
Chris@905: 
Chris@905:     double newmin, newmax;
Chris@253: 
Chris@253:     if (m_frequencyScale == LogFrequencyScale) {
Chris@253: 
Chris@253:         // need to pick newmin and newmax such that
Chris@253:         //
Chris@253:         // (log(newmin) + log(newmax)) / 2 == logmid
Chris@253:         // and
Chris@253:         // newmax - newmin = newdist
Chris@253:         //
Chris@253:         // so log(newmax - newdist) + log(newmax) == 2logmid
Chris@253:         // log(newmax(newmax - newdist)) == 2logmid
Chris@253:         // newmax.newmax - newmax.newdist == exp(2logmid)
Chris@253:         // newmax^2 + (-newdist)newmax + -exp(2logmid) == 0
Chris@253:         // quadratic with a = 1, b = -newdist, c = -exp(2logmid), all known
Chris@253:         // 
Chris@253:         // positive root
Chris@253:         // newmax = (newdist + sqrt(newdist^2 + 4exp(2logmid))) / 2
Chris@253:         //
Chris@253:         // but logmid = (log(dmin) + log(dmax)) / 2
Chris@253:         // so exp(2logmid) = exp(log(dmin) + log(dmax))
Chris@253:         // = exp(log(dmin.dmax))
Chris@253:         // = dmin.dmax
Chris@253:         // so newmax = (newdist + sqrtf(newdist^2 + 4dmin.dmax)) / 2
Chris@253: 
Chris@907:         newmax = (newdist + sqrt(newdist*newdist + 4*dmin*dmax)) / 2;
Chris@253:         newmin = newmax - newdist;
Chris@253: 
Chris@682: //        cerr << "newmin = " << newmin << ", newmax = " << newmax << endl;
Chris@253: 
Chris@253:     } else {
Chris@905:         double dmid = (dmax + dmin) / 2;
Chris@253:         newmin = dmid - newdist / 2;
Chris@253:         newmax = dmid + newdist / 2;
Chris@253:     }
Chris@187: 
Chris@905:     double mmin, mmax;
Chris@187:     mmin = 0;
Chris@905:     mmax = double(sr) / 2;
Chris@133:     
Chris@187:     if (newmin < mmin) {
Chris@187:         newmax += (mmin - newmin);
Chris@187:         newmin = mmin;
Chris@187:     }
Chris@187:     if (newmax > mmax) {
Chris@187:         newmax = mmax;
Chris@187:     }
Chris@133:     
Chris@587: //    SVDEBUG << "SpectrogramLayer::setVerticalZoomStep: " << step << ": " << newmin << " -> " << newmax << " (range " << newdist << ")" << endl;
Chris@253: 
Chris@907:     setMinFrequency(int(lrint(newmin)));
Chris@907:     setMaxFrequency(int(lrint(newmax)));
Chris@187: }
Chris@187: 
Chris@187: RangeMapper *
Chris@187: SpectrogramLayer::getNewVerticalZoomRangeMapper() const
Chris@187: {
Chris@187:     if (!m_model) return 0;
Chris@187:     return new SpectrogramRangeMapper(m_model->getSampleRate(), m_fftSize);
Chris@133: }
Chris@133: 
Chris@273: void
Chris@918: SpectrogramLayer::updateMeasureRectYCoords(LayerGeometryProvider *v, const MeasureRect &r) const
Chris@273: {
Chris@273:     int y0 = 0;
Chris@907:     if (r.startY > 0.0) y0 = int(getYForFrequency(v, r.startY));
Chris@273:     
Chris@273:     int y1 = y0;
Chris@907:     if (r.endY > 0.0) y1 = int(getYForFrequency(v, r.endY));
Chris@273: 
Chris@587: //    SVDEBUG << "SpectrogramLayer::updateMeasureRectYCoords: start " << r.startY << " -> " << y0 << ", end " << r.endY << " -> " << y1 << endl;
Chris@273: 
Chris@273:     r.pixrect = QRect(r.pixrect.x(), y0, r.pixrect.width(), y1 - y0);
Chris@273: }
Chris@273: 
Chris@273: void
Chris@918: SpectrogramLayer::setMeasureRectYCoord(LayerGeometryProvider *v, MeasureRect &r, bool start, int y) const
Chris@273: {
Chris@273:     if (start) {
Chris@273:         r.startY = getFrequencyForY(v, y);
Chris@273:         r.endY = r.startY;
Chris@273:     } else {
Chris@273:         r.endY = getFrequencyForY(v, y);
Chris@273:     }
Chris@587: //    SVDEBUG << "SpectrogramLayer::setMeasureRectYCoord: start " << r.startY << " <- " << y << ", end " << r.endY << " <- " << y << endl;
Chris@273: 
Chris@273: }
Chris@273: 
Chris@316: void
Chris@316: SpectrogramLayer::toXml(QTextStream &stream,
Chris@316:                         QString indent, QString extraAttributes) const
Chris@6: {
Chris@6:     QString s;
Chris@6:     
Chris@6:     s += QString("channel=\"%1\" "
Chris@6: 		 "windowSize=\"%2\" "
Chris@153: 		 "windowHopLevel=\"%3\" "
Chris@153: 		 "gain=\"%4\" "
Chris@153: 		 "threshold=\"%5\" ")
Chris@6: 	.arg(m_channel)
Chris@6: 	.arg(m_windowSize)
Chris@97: 	.arg(m_windowHopLevel)
Chris@37: 	.arg(m_gain)
Chris@37: 	.arg(m_threshold);
Chris@37: 
Chris@37:     s += QString("minFrequency=\"%1\" "
Chris@37: 		 "maxFrequency=\"%2\" "
Chris@37: 		 "colourScale=\"%3\" "
Chris@37: 		 "colourScheme=\"%4\" "
Chris@37: 		 "colourRotation=\"%5\" "
Chris@37: 		 "frequencyScale=\"%6\" "
Chris@761: 		 "binDisplay=\"%7\" ")
Chris@37: 	.arg(m_minFrequency)
Chris@6: 	.arg(m_maxFrequency)
Chris@6: 	.arg(m_colourScale)
Chris@197: 	.arg(m_colourMap)
Chris@37: 	.arg(m_colourRotation)
Chris@35: 	.arg(m_frequencyScale)
Chris@761: 	.arg(m_binDisplay);
Chris@761: 
Chris@761:     s += QString("normalizeColumns=\"%1\" "
Chris@761:                  "normalizeVisibleArea=\"%2\" "
Chris@761:                  "normalizeHybrid=\"%3\" ")
Chris@862: 	.arg(m_normalization == NormalizeColumns ? "true" : "false")
Chris@862:         .arg(m_normalization == NormalizeVisibleArea ? "true" : "false")
Chris@862:         .arg(m_normalization == NormalizeHybrid ? "true" : "false");
Chris@6: 
Chris@316:     Layer::toXml(stream, indent, extraAttributes + " " + s);
Chris@6: }
Chris@6: 
Chris@11: void
Chris@11: SpectrogramLayer::setProperties(const QXmlAttributes &attributes)
Chris@11: {
Chris@11:     bool ok = false;
Chris@11: 
Chris@11:     int channel = attributes.value("channel").toInt(&ok);
Chris@11:     if (ok) setChannel(channel);
Chris@11: 
Chris@805:     int windowSize = attributes.value("windowSize").toUInt(&ok);
Chris@11:     if (ok) setWindowSize(windowSize);
Chris@11: 
Chris@805:     int windowHopLevel = attributes.value("windowHopLevel").toUInt(&ok);
Chris@97:     if (ok) setWindowHopLevel(windowHopLevel);
Chris@97:     else {
Chris@805:         int windowOverlap = attributes.value("windowOverlap").toUInt(&ok);
Chris@97:         // a percentage value
Chris@97:         if (ok) {
Chris@97:             if (windowOverlap == 0) setWindowHopLevel(0);
Chris@97:             else if (windowOverlap == 25) setWindowHopLevel(1);
Chris@97:             else if (windowOverlap == 50) setWindowHopLevel(2);
Chris@97:             else if (windowOverlap == 75) setWindowHopLevel(3);
Chris@97:             else if (windowOverlap == 90) setWindowHopLevel(4);
Chris@97:         }
Chris@97:     }
Chris@11: 
Chris@11:     float gain = attributes.value("gain").toFloat(&ok);
Chris@11:     if (ok) setGain(gain);
Chris@11: 
Chris@37:     float threshold = attributes.value("threshold").toFloat(&ok);
Chris@37:     if (ok) setThreshold(threshold);
Chris@37: 
Chris@805:     int minFrequency = attributes.value("minFrequency").toUInt(&ok);
Chris@187:     if (ok) {
Chris@587:         SVDEBUG << "SpectrogramLayer::setProperties: setting min freq to " << minFrequency << endl;
Chris@187:         setMinFrequency(minFrequency);
Chris@187:     }
Chris@37: 
Chris@805:     int maxFrequency = attributes.value("maxFrequency").toUInt(&ok);
Chris@187:     if (ok) {
Chris@587:         SVDEBUG << "SpectrogramLayer::setProperties: setting max freq to " << maxFrequency << endl;
Chris@187:         setMaxFrequency(maxFrequency);
Chris@187:     }
Chris@11: 
Chris@11:     ColourScale colourScale = (ColourScale)
Chris@11: 	attributes.value("colourScale").toInt(&ok);
Chris@11:     if (ok) setColourScale(colourScale);
Chris@11: 
Chris@197:     int colourMap = attributes.value("colourScheme").toInt(&ok);
Chris@197:     if (ok) setColourMap(colourMap);
Chris@11: 
Chris@37:     int colourRotation = attributes.value("colourRotation").toInt(&ok);
Chris@37:     if (ok) setColourRotation(colourRotation);
Chris@37: 
Chris@11:     FrequencyScale frequencyScale = (FrequencyScale)
Chris@11: 	attributes.value("frequencyScale").toInt(&ok);
Chris@11:     if (ok) setFrequencyScale(frequencyScale);
Chris@35: 
Chris@37:     BinDisplay binDisplay = (BinDisplay)
Chris@37: 	attributes.value("binDisplay").toInt(&ok);
Chris@37:     if (ok) setBinDisplay(binDisplay);
Chris@36: 
Chris@36:     bool normalizeColumns =
Chris@36: 	(attributes.value("normalizeColumns").trimmed() == "true");
Chris@862:     if (normalizeColumns) {
Chris@862:         setNormalization(NormalizeColumns);
Chris@862:     }
Chris@153: 
Chris@153:     bool normalizeVisibleArea =
Chris@153: 	(attributes.value("normalizeVisibleArea").trimmed() == "true");
Chris@862:     if (normalizeVisibleArea) {
Chris@862:         setNormalization(NormalizeVisibleArea);
Chris@862:     }
Chris@761: 
Chris@761:     bool normalizeHybrid =
Chris@761: 	(attributes.value("normalizeHybrid").trimmed() == "true");
Chris@862:     if (normalizeHybrid) {
Chris@862:         setNormalization(NormalizeHybrid);
Chris@862:     }
Chris@11: }
Chris@11: