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@182:     This file copyright 2006 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@0: 
Chris@0: #include <QPainter>
Chris@0: #include <QImage>
Chris@0: #include <QPixmap>
Chris@0: #include <QRect>
Chris@0: #include <QTimer>
Chris@92: #include <QApplication>
Chris@178: #include <QMessageBox>
Chris@0: 
Chris@0: #include <iostream>
Chris@0: 
Chris@0: #include <cassert>
Chris@0: #include <cmath>
Chris@0: 
Chris@174: //#define DEBUG_SPECTROGRAM_REPAINT 1
Chris@0: 
Chris@44: SpectrogramLayer::SpectrogramLayer(Configuration config) :
Chris@44:     Layer(),
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@37:     m_threshold(0.0),
Chris@9:     m_colourRotation(0),
Chris@119:     m_minFrequency(10),
Chris@0:     m_maxFrequency(8000),
Chris@135:     m_initialMaxFrequency(8000),
Chris@0:     m_colourScale(dBColourScale),
Chris@0:     m_colourScheme(DefaultColours),
Chris@0:     m_frequencyScale(LinearFrequencyScale),
Chris@37:     m_binDisplay(AllBins),
Chris@36:     m_normalizeColumns(false),
Chris@120:     m_normalizeVisibleArea(false),
Chris@133:     m_lastEmittedZoomStep(-1),
Chris@0:     m_updateTimer(0),
Chris@44:     m_candidateFillStartFrame(0),
Chris@0:     m_exiting(false)
Chris@0: {
Chris@0:     if (config == MelodicRange) {
Chris@0: 	setWindowSize(8192);
Chris@97: 	setWindowHopLevel(4);
Chris@109: //	setWindowType(ParzenWindow);
Chris@135:         m_initialMaxFrequency = 1000;
Chris@0: 	setMaxFrequency(1000);
Chris@0: 	setColourScale(LinearColourScale);
Chris@37:     } else if (config == MelodicPeaks) {
Chris@37: 	setWindowSize(4096);
Chris@97: 	setWindowHopLevel(5);
Chris@109: //	setWindowType(BlackmanWindow);
Chris@135:         m_initialMaxFrequency = 2000;
Chris@40: 	setMaxFrequency(2000);
Chris@37: 	setMinFrequency(40);
Chris@37: 	setFrequencyScale(LogFrequencyScale);
Chris@41: 	setColourScale(MeterColourScale);
Chris@37: 	setBinDisplay(PeakFrequencies);
Chris@37: 	setNormalizeColumns(true);
Chris@0:     }
Chris@110: 
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@110:     setColourmap();
Chris@0: }
Chris@0: 
Chris@0: SpectrogramLayer::~SpectrogramLayer()
Chris@0: {
Chris@0:     delete m_updateTimer;
Chris@0:     m_updateTimer = 0;
Chris@0:     
Chris@130:     invalidateFFTModels();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SpectrogramLayer::setModel(const DenseTimeValueModel *model)
Chris@0: {
Chris@101: //    std::cerr << "SpectrogramLayer(" << this << "): setModel(" << model << ")" << std::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@0:     connect(m_model, SIGNAL(modelChanged()), this, SIGNAL(modelChanged()));
Chris@0:     connect(m_model, SIGNAL(modelChanged(size_t, size_t)),
Chris@0: 	    this, SIGNAL(modelChanged(size_t, size_t)));
Chris@0: 
Chris@0:     connect(m_model, SIGNAL(completionChanged()),
Chris@0: 	    this, SIGNAL(modelCompletionChanged()));
Chris@0: 
Chris@0:     connect(m_model, SIGNAL(modelChanged()), this, SLOT(cacheInvalid()));
Chris@0:     connect(m_model, SIGNAL(modelChanged(size_t, size_t)),
Chris@0: 	    this, SLOT(cacheInvalid(size_t, size_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@87:     list.push_back("Normalize Columns");
Chris@120:     list.push_back("Normalize Visible Area");
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@87:     if (name == "Normalize Columns") return tr("Normalize Columns");
Chris@120:     if (name == "Normalize Visible Area") return tr("Normalize Visible Area");
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@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 == "Normalize Columns") return ToggleProperty;
Chris@120:     if (name == "Normalize Visible Area") return ToggleProperty;
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@153: //	name == "Gain" ||
Chris@87: 	name == "Threshold" ||
Chris@87: 	name == "Colour Rotation") return tr("Colour");
Chris@87:     if (name == "Normalize Columns" ||
Chris@120:         name == "Normalize Visible Area" ||
Chris@153: //	name == "Bin Display" ||
Chris@153:         name == "Gain" ||
Chris@87: 	name == "Colour Scale") return tr("Scale");
Chris@153: //    if (name == "Max Frequency" ||
Chris@153: //	name == "Min Frequency" ||
Chris@153: //	name == "Frequency Scale" ||
Chris@153: //	name == "Frequency Adjustment") return tr("Range");
Chris@0:     return QString();
Chris@0: }
Chris@0: 
Chris@0: int
Chris@0: SpectrogramLayer::getPropertyRangeAndValue(const PropertyName &name,
Chris@55: 					   int *min, int *max) const
Chris@0: {
Chris@0:     int deft = 0;
Chris@0: 
Chris@55:     int garbage0, garbage1;
Chris@55:     if (!min) min = &garbage0;
Chris@55:     if (!max) max = &garbage1;
Chris@10: 
Chris@87:     if (name == "Gain") {
Chris@0: 
Chris@0: 	*min = -50;
Chris@0: 	*max = 50;
Chris@0: 
Chris@0: 	deft = lrint(log10(m_gain) * 20.0);
Chris@0: 	if (deft < *min) deft = *min;
Chris@0: 	if (deft > *max) deft = *max;
Chris@0: 
Chris@87:     } else if (name == "Threshold") {
Chris@37: 
Chris@37: 	*min = -50;
Chris@37: 	*max = 0;
Chris@37: 
Chris@37: 	deft = lrintf(AudioLevel::multiplier_to_dB(m_threshold));
Chris@37: 	if (deft < *min) deft = *min;
Chris@37: 	if (deft > *max) deft = *max;
Chris@37: 
Chris@87:     } else if (name == "Colour Rotation") {
Chris@9: 
Chris@9: 	*min = 0;
Chris@9: 	*max = 256;
Chris@9: 
Chris@9: 	deft = m_colourRotation;
Chris@9: 
Chris@87:     } else if (name == "Colour Scale") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@176: 	*max = 4;
Chris@0: 
Chris@0: 	deft = (int)m_colourScale;
Chris@0: 
Chris@87:     } else if (name == "Colour") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@71: 	*max = 6;
Chris@0: 
Chris@0: 	deft = (int)m_colourScheme;
Chris@0: 
Chris@87:     } else if (name == "Window Size") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@0: 	*max = 10;
Chris@0: 	
Chris@0: 	deft = 0;
Chris@0: 	int ws = m_windowSize;
Chris@0: 	while (ws > 32) { ws >>= 1; deft ++; }
Chris@0: 
Chris@97:     } else if (name == "Window Increment") {
Chris@0: 	
Chris@0: 	*min = 0;
Chris@97: 	*max = 5;
Chris@0: 	
Chris@97:         deft = m_windowHopLevel;
Chris@0:     
Chris@109:     } else if (name == "Zero Padding") {
Chris@109: 	
Chris@109: 	*min = 0;
Chris@109: 	*max = 1;
Chris@109: 	
Chris@109:         deft = 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@37: 
Chris@37: 	switch (m_minFrequency) {
Chris@37: 	case 0: default: deft = 0; break;
Chris@37: 	case 10: deft = 1; break;
Chris@37: 	case 20: deft = 2; break;
Chris@37: 	case 40: deft = 3; break;
Chris@37: 	case 100: deft = 4; break;
Chris@37: 	case 250: deft = 5; break;
Chris@37: 	case 500: deft = 6; break;
Chris@37: 	case 1000: deft = 7; break;
Chris@37: 	case 4000: deft = 8; break;
Chris@37: 	case 10000: deft = 9; break;
Chris@37: 	}
Chris@37:     
Chris@87:     } else if (name == "Max Frequency") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@0: 	*max = 9;
Chris@0: 
Chris@0: 	switch (m_maxFrequency) {
Chris@0: 	case 500: deft = 0; break;
Chris@0: 	case 1000: deft = 1; break;
Chris@0: 	case 1500: deft = 2; break;
Chris@0: 	case 2000: deft = 3; break;
Chris@0: 	case 4000: deft = 4; break;
Chris@0: 	case 6000: deft = 5; break;
Chris@0: 	case 8000: deft = 6; break;
Chris@0: 	case 12000: deft = 7; break;
Chris@0: 	case 16000: deft = 8; break;
Chris@0: 	default: deft = 9; break;
Chris@0: 	}
Chris@0: 
Chris@87:     } else if (name == "Frequency Scale") {
Chris@0: 
Chris@0: 	*min = 0;
Chris@0: 	*max = 1;
Chris@0: 	deft = (int)m_frequencyScale;
Chris@0: 
Chris@87:     } else if (name == "Bin Display") {
Chris@35: 
Chris@35: 	*min = 0;
Chris@35: 	*max = 2;
Chris@37: 	deft = (int)m_binDisplay;
Chris@35: 
Chris@87:     } else if (name == "Normalize Columns") {
Chris@36: 	
Chris@36: 	deft = (m_normalizeColumns ? 1 : 0);
Chris@36: 
Chris@120:     } else if (name == "Normalize Visible Area") {
Chris@120: 	
Chris@120: 	deft = (m_normalizeVisibleArea ? 1 : 0);
Chris@120: 
Chris@0:     } else {
Chris@0: 	deft = Layer::getPropertyRangeAndValue(name, min, max);
Chris@0:     }
Chris@0: 
Chris@0:     return deft;
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@0: 	switch (value) {
Chris@0: 	default:
Chris@0: 	case 0: return tr("Default");
Chris@0: 	case 1: return tr("White on Black");
Chris@0: 	case 2: return tr("Black on White");
Chris@0: 	case 3: return tr("Red on Blue");
Chris@0: 	case 4: return tr("Yellow on Black");
Chris@71: 	case 5: return tr("Blue on Black");
Chris@71: 	case 6: return tr("Fruit Salad");
Chris@0: 	}
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@37: 	case 2: return tr("dB");
Chris@176: 	case 3: return tr("dB^2");
Chris@119: 	case 4: return tr("Phase");
Chris@0: 	}
Chris@0:     }
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@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@0: 	setGain(pow(10, float(value)/20.0));
Chris@87:     } else if (name == "Threshold") {
Chris@37: 	if (value == -50) setThreshold(0.0);
Chris@37: 	else setThreshold(AudioLevel::dB_to_multiplier(value));
Chris@87:     } else if (name == "Colour Rotation") {
Chris@9: 	setColourRotation(value);
Chris@87:     } else if (name == "Colour") {
Chris@0: 	switch (value) {
Chris@0: 	default:
Chris@0: 	case 0:	setColourScheme(DefaultColours); break;
Chris@0: 	case 1: setColourScheme(WhiteOnBlack); break;
Chris@0: 	case 2: setColourScheme(BlackOnWhite); break;
Chris@0: 	case 3: setColourScheme(RedOnBlue); break;
Chris@0: 	case 4: setColourScheme(YellowOnBlack); break;
Chris@71: 	case 5: setColourScheme(BlueOnBlack); break;
Chris@71: 	case 6: setColourScheme(Rainbow); break;
Chris@0: 	}
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@0: 	case 2: setColourScale(dBColourScale); break;
Chris@119: 	case 3: setColourScale(OtherColourScale); 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@82:     } else if (name == "Normalize Columns") {
Chris@36: 	setNormalizeColumns(value ? true : false);
Chris@120:     } else if (name == "Normalize Visible Area") {
Chris@120: 	setNormalizeVisibleArea(value ? true : false);
Chris@0:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@95: SpectrogramLayer::invalidatePixmapCaches()
Chris@95: {
Chris@95:     for (ViewPixmapCache::iterator i = m_pixmapCaches.begin();
Chris@95:          i != m_pixmapCaches.end(); ++i) {
Chris@95:         i->second.validArea = QRect();
Chris@95:     }
Chris@95: }
Chris@95: 
Chris@95: void
Chris@95: SpectrogramLayer::invalidatePixmapCaches(size_t startFrame, size_t endFrame)
Chris@95: {
Chris@95:     for (ViewPixmapCache::iterator i = m_pixmapCaches.begin();
Chris@95:          i != m_pixmapCaches.end(); ++i) {
Chris@131: 
Chris@95:         //!!! when are views removed from the map? on setLayerDormant?
Chris@95:         const View *v = i->first;
Chris@95: 
Chris@115:         if (startFrame < v->getEndFrame() && int(endFrame) >= v->getStartFrame()) {
Chris@95:             i->second.validArea = QRect();
Chris@95:         }
Chris@95:     }
Chris@95: }
Chris@95: 
Chris@95: void
Chris@122: SpectrogramLayer::preferenceChanged(PropertyContainer::PropertyName name)
Chris@122: {
Chris@122:     std::cerr << "SpectrogramLayer::preferenceChanged(" << name.toStdString() << ")" << std::endl;
Chris@122: 
Chris@122:     if (name == "Window Type") {
Chris@122:         setWindowType(Preferences::getInstance()->getWindowType());
Chris@122:         return;
Chris@122:     }
Chris@122:     if (name == "Smooth Spectrogram") {
Chris@122:         invalidatePixmapCaches();
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@95:     invalidatePixmapCaches();
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@0: SpectrogramLayer::setWindowSize(size_t ws)
Chris@0: {
Chris@0:     if (m_windowSize == ws) return;
Chris@0: 
Chris@95:     invalidatePixmapCaches();
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@0: size_t
Chris@0: SpectrogramLayer::getWindowSize() const
Chris@0: {
Chris@0:     return m_windowSize;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@97: SpectrogramLayer::setWindowHopLevel(size_t v)
Chris@0: {
Chris@97:     if (m_windowHopLevel == v) return;
Chris@0: 
Chris@95:     invalidatePixmapCaches();
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@0: size_t
Chris@97: SpectrogramLayer::getWindowHopLevel() const
Chris@0: {
Chris@97:     return m_windowHopLevel;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@109: SpectrogramLayer::setZeroPadLevel(size_t v)
Chris@109: {
Chris@109:     if (m_zeroPadLevel == v) return;
Chris@109: 
Chris@109:     invalidatePixmapCaches();
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@109: size_t
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@95:     invalidatePixmapCaches();
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@101: //    std::cerr << "SpectrogramLayer::setGain(" << gain << ") (my gain is now "
Chris@101: //	      << m_gain << ")" << std::endl;
Chris@55: 
Chris@40:     if (m_gain == gain) return;
Chris@0: 
Chris@95:     invalidatePixmapCaches();
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@95:     invalidatePixmapCaches();
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@37: SpectrogramLayer::setMinFrequency(size_t mf)
Chris@37: {
Chris@37:     if (m_minFrequency == mf) return;
Chris@37: 
Chris@95:     invalidatePixmapCaches();
Chris@119:     invalidateMagnitudes();
Chris@37:     
Chris@37:     m_minFrequency = mf;
Chris@37: 
Chris@37:     emit layerParametersChanged();
Chris@37: }
Chris@37: 
Chris@37: size_t
Chris@37: SpectrogramLayer::getMinFrequency() const
Chris@37: {
Chris@37:     return m_minFrequency;
Chris@37: }
Chris@37: 
Chris@37: void
Chris@0: SpectrogramLayer::setMaxFrequency(size_t mf)
Chris@0: {
Chris@0:     if (m_maxFrequency == mf) return;
Chris@0: 
Chris@95:     invalidatePixmapCaches();
Chris@119:     invalidateMagnitudes();
Chris@0:     
Chris@0:     m_maxFrequency = mf;
Chris@0:     
Chris@9:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: size_t
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@95:     invalidatePixmapCaches();
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@90: 	rotateColourmap(-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@95:     invalidatePixmapCaches();
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@0: SpectrogramLayer::setColourScheme(ColourScheme scheme)
Chris@0: {
Chris@0:     if (m_colourScheme == scheme) return;
Chris@0: 
Chris@95:     invalidatePixmapCaches();
Chris@0:     
Chris@0:     m_colourScheme = scheme;
Chris@90:     setColourmap();
Chris@9: 
Chris@0:     emit layerParametersChanged();
Chris@0: }
Chris@0: 
Chris@0: SpectrogramLayer::ColourScheme
Chris@0: SpectrogramLayer::getColourScheme() const
Chris@0: {
Chris@0:     return m_colourScheme;
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@95:     invalidatePixmapCaches();
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@95:     invalidatePixmapCaches();
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@36: SpectrogramLayer::setNormalizeColumns(bool n)
Chris@36: {
Chris@36:     if (m_normalizeColumns == n) return;
Chris@36: 
Chris@95:     invalidatePixmapCaches();
Chris@119:     invalidateMagnitudes();
Chris@36:     m_normalizeColumns = n;
Chris@36: 
Chris@36:     emit layerParametersChanged();
Chris@36: }
Chris@36: 
Chris@36: bool
Chris@36: SpectrogramLayer::getNormalizeColumns() const
Chris@36: {
Chris@36:     return m_normalizeColumns;
Chris@36: }
Chris@36: 
Chris@36: void
Chris@120: SpectrogramLayer::setNormalizeVisibleArea(bool n)
Chris@120: {
Chris@120:     if (m_normalizeVisibleArea == n) return;
Chris@120: 
Chris@120:     invalidatePixmapCaches();
Chris@120:     invalidateMagnitudes();
Chris@120:     m_normalizeVisibleArea = n;
Chris@120: 
Chris@120:     emit layerParametersChanged();
Chris@120: }
Chris@120: 
Chris@120: bool
Chris@120: SpectrogramLayer::getNormalizeVisibleArea() const
Chris@120: {
Chris@120:     return m_normalizeVisibleArea;
Chris@120: }
Chris@120: 
Chris@120: void
Chris@47: SpectrogramLayer::setLayerDormant(const View *v, bool dormant)
Chris@29: {
Chris@33:     if (dormant) {
Chris@33: 
Chris@131:         if (isLayerDormant(v)) {
Chris@131:             return;
Chris@131:         }
Chris@131: 
Chris@131:         Layer::setLayerDormant(v, true);
Chris@33: 
Chris@95: 	invalidatePixmapCaches();
Chris@95:         m_pixmapCaches.erase(v);
Chris@114: 
Chris@130:         if (m_fftModels.find(v) != m_fftModels.end()) {
Chris@130:             delete m_fftModels[v].first;
Chris@130:             m_fftModels.erase(v);
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@95:     invalidatePixmapCaches();
Chris@119:     invalidateMagnitudes();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SpectrogramLayer::cacheInvalid(size_t, size_t)
Chris@0: {
Chris@0:     // for now (or forever?)
Chris@0:     cacheInvalid();
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: SpectrogramLayer::fillTimerTimedOut()
Chris@0: {
Chris@115:     if (!m_model) return;
Chris@115: 
Chris@115:     bool allDone = true;
Chris@115: 
Chris@130:     for (ViewFFTMap::iterator i = m_fftModels.begin();
Chris@130:          i != m_fftModels.end(); ++i) {
Chris@115: 
Chris@115:         const View *v = i->first;
Chris@130:         const FFTModel *model = i->second.first;
Chris@115:         size_t lastFill = i->second.second;
Chris@115: 
Chris@130:         if (model) {
Chris@130: 
Chris@130:             size_t fill = model->getFillExtent();
Chris@115: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@130:             std::cerr << "SpectrogramLayer::fillTimerTimedOut: extent for " << model << ": " << fill << ", last " << lastFill << ", total " << m_model->getEndFrame() << std::endl;
Chris@0: #endif
Chris@115: 
Chris@115:             if (fill >= lastFill) {
Chris@115:                 if (fill >= m_model->getEndFrame() && lastFill > 0) {
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@115:                     std::cerr << "complete!" << std::endl;
Chris@0: #endif
Chris@115:                     invalidatePixmapCaches();
Chris@115:                     emit modelChanged();
Chris@115:                     i->second.second = -1;
Chris@115: 
Chris@115:                 } else if (fill > lastFill) {
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@115:                     std::cerr << "SpectrogramLayer: emitting modelChanged("
Chris@115:                               << lastFill << "," << fill << ")" << std::endl;
Chris@0: #endif
Chris@115:                     invalidatePixmapCaches(lastFill, fill);
Chris@115:                     emit modelChanged(lastFill, fill);
Chris@115:                     i->second.second = fill;
Chris@115:                 }
Chris@115:             } else {
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@115:                 std::cerr << "SpectrogramLayer: going backwards, emitting modelChanged("
Chris@115:                           << m_model->getStartFrame() << "," << m_model->getEndFrame() << ")" << std::endl;
Chris@0: #endif
Chris@115:                 invalidatePixmapCaches();
Chris@115:                 emit modelChanged(m_model->getStartFrame(), m_model->getEndFrame());
Chris@115:                 i->second.second = fill;
Chris@115:             }
Chris@115: 
Chris@115:             if (i->second.second >= 0) {
Chris@115:                 allDone = false;
Chris@115:             }
Chris@115:         }
Chris@0:     }
Chris@115: 
Chris@115:     if (allDone) {
Chris@115: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@115:         std::cerr << "SpectrogramLayer: all complete!" << std::endl;
Chris@115: #endif
Chris@115:         delete m_updateTimer;
Chris@115:         m_updateTimer = 0;
Chris@115:     }
Chris@0: }
Chris@0: 
Chris@0: void
Chris@90: SpectrogramLayer::setColourmap()
Chris@0: {
Chris@10:     int formerRotation = m_colourRotation;
Chris@10: 
Chris@38:     if (m_colourScheme == BlackOnWhite) {
Chris@86: 	m_colourMap.setColour(NO_VALUE, Qt::white);
Chris@38:     } else {
Chris@86: 	m_colourMap.setColour(NO_VALUE, Qt::black);
Chris@38:     }
Chris@0: 
Chris@0:     for (int pixel = 1; pixel < 256; ++pixel) {
Chris@0: 
Chris@0: 	QColor colour;
Chris@0: 	int hue, px;
Chris@0: 
Chris@0: 	switch (m_colourScheme) {
Chris@0: 
Chris@0: 	default:
Chris@0: 	case DefaultColours:
Chris@0: 	    hue = 256 - pixel;
Chris@0: 	    colour = QColor::fromHsv(hue, pixel/2 + 128, pixel);
Chris@77:             m_crosshairColour = QColor(255, 150, 50);
Chris@77: //            m_crosshairColour = QColor::fromHsv(240, 160, 255);
Chris@0: 	    break;
Chris@0: 
Chris@0: 	case WhiteOnBlack:
Chris@0: 	    colour = QColor(pixel, pixel, pixel);
Chris@77:             m_crosshairColour = Qt::red;
Chris@0: 	    break;
Chris@0: 
Chris@0: 	case BlackOnWhite:
Chris@0: 	    colour = QColor(256-pixel, 256-pixel, 256-pixel);
Chris@77:             m_crosshairColour = Qt::darkGreen;
Chris@0: 	    break;
Chris@0: 
Chris@0: 	case RedOnBlue:
Chris@0: 	    colour = QColor(pixel > 128 ? (pixel - 128) * 2 : 0, 0,
Chris@0: 			    pixel < 128 ? pixel : (256 - pixel));
Chris@77:             m_crosshairColour = Qt::green;
Chris@0: 	    break;
Chris@0: 
Chris@0: 	case YellowOnBlack:
Chris@0: 	    px = 256 - pixel;
Chris@0: 	    colour = QColor(px < 64 ? 255 - px/2 :
Chris@0: 			    px < 128 ? 224 - (px - 64) :
Chris@0: 			    px < 192 ? 160 - (px - 128) * 3 / 2 :
Chris@0: 			    256 - px,
Chris@0: 			    pixel,
Chris@0: 			    pixel / 4);
Chris@77:             m_crosshairColour = QColor::fromHsv(240, 255, 255);
Chris@0: 	    break;
Chris@0: 
Chris@71:         case BlueOnBlack:
Chris@71:             colour = QColor::fromHsv
Chris@71:                 (240, pixel > 226 ? 256 - (pixel - 226) * 8 : 255,
Chris@71:                  (pixel * pixel) / 255);
Chris@77:             m_crosshairColour = Qt::red;
Chris@71:             break;
Chris@71: 
Chris@40: 	case Rainbow:
Chris@40: 	    hue = 250 - pixel;
Chris@40: 	    if (hue < 0) hue += 256;
Chris@40: 	    colour = QColor::fromHsv(pixel, 255, 255);
Chris@77:             m_crosshairColour = Qt::white;
Chris@0: 	    break;
Chris@0: 	}
Chris@0: 
Chris@86: 	m_colourMap.setColour(pixel, colour);
Chris@0:     }
Chris@9: 
Chris@9:     m_colourRotation = 0;
Chris@90:     rotateColourmap(m_colourRotation - formerRotation);
Chris@10:     m_colourRotation = formerRotation;
Chris@9: }
Chris@9: 
Chris@9: void
Chris@90: SpectrogramLayer::rotateColourmap(int distance)
Chris@9: {
Chris@31:     QColor newPixels[256];
Chris@9: 
Chris@86:     newPixels[NO_VALUE] = m_colourMap.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@86: 	newPixels[target] = m_colourMap.getColour(pixel);
Chris@9:     }
Chris@9: 
Chris@9:     for (int pixel = 0; pixel < 256; ++pixel) {
Chris@86: 	m_colourMap.setColour(pixel, newPixels[pixel]);
Chris@9:     }
Chris@0: }
Chris@0: 
Chris@38: float
Chris@38: SpectrogramLayer::calculateFrequency(size_t bin,
Chris@38: 				     size_t windowSize,
Chris@38: 				     size_t windowIncrement,
Chris@38: 				     size_t sampleRate,
Chris@38: 				     float oldPhase,
Chris@38: 				     float newPhase,
Chris@38: 				     bool &steadyState)
Chris@38: {
Chris@38:     // At frequency f, phase shift of 2pi (one cycle) happens in 1/f sec.
Chris@38:     // At hopsize h and sample rate sr, one hop happens in h/sr sec.
Chris@38:     // At window size w, for bin b, f is b*sr/w.
Chris@38:     // thus 2pi phase shift happens in w/(b*sr) sec.
Chris@38:     // We need to know what phase shift we expect from h/sr sec.
Chris@38:     // -> 2pi * ((h/sr) / (w/(b*sr)))
Chris@38:     //  = 2pi * ((h * b * sr) / (w * sr))
Chris@38:     //  = 2pi * (h * b) / w.
Chris@38: 
Chris@38:     float frequency = (float(bin) * sampleRate) / windowSize;
Chris@38: 
Chris@38:     float expectedPhase =
Chris@38: 	oldPhase + (2.0 * M_PI * bin * windowIncrement) / windowSize;
Chris@38: 
Chris@104:     float phaseError = princargf(newPhase - expectedPhase);
Chris@38: 	    
Chris@142:     if (fabsf(phaseError) < (1.1f * (windowIncrement * M_PI) / windowSize)) {
Chris@38: 
Chris@38: 	// The new frequency estimate based on the phase error
Chris@38: 	// resulting from assuming the "native" frequency of this bin
Chris@38: 
Chris@38: 	float newFrequency =
Chris@38: 	    (sampleRate * (expectedPhase + phaseError - oldPhase)) /
Chris@38: 	    (2 * M_PI * windowIncrement);
Chris@38: 
Chris@38: 	steadyState = true;
Chris@38: 	return newFrequency;
Chris@38:     }
Chris@38: 
Chris@38:     steadyState = false;
Chris@38:     return frequency;
Chris@38: }
Chris@38: 
Chris@38: unsigned char
Chris@119: SpectrogramLayer::getDisplayValue(View *v, float input) const
Chris@38: {
Chris@38:     int value;
Chris@37: 
Chris@120:     float min = 0.f;
Chris@120:     float max = 1.f;
Chris@120: 
Chris@120:     if (m_normalizeVisibleArea) {
Chris@120:         min = m_viewMags[v].getMin();
Chris@120:         max = m_viewMags[v].getMax();
Chris@120:     } else if (!m_normalizeColumns) {
Chris@120:         if (m_colourScale == LinearColourScale ||
Chris@120:             m_colourScale == MeterColourScale) {
Chris@120:             max = 0.1f;
Chris@120:         }
Chris@120:     }
Chris@120: 
Chris@119:     float thresh = -80.f;
Chris@119: 
Chris@119:     if (max == 0.f) max = 1.f;
Chris@119:     if (max == min) min = max - 0.0001f;
Chris@119: 
Chris@40:     switch (m_colourScale) {
Chris@40: 	
Chris@40:     default:
Chris@40:     case LinearColourScale:
Chris@119: //	value = int
Chris@119: //	    (input * (m_normalizeColumns ? 1.0 : 50.0) * 255.0) + 1;
Chris@119:         value = int(((input - min) / (max - min)) * 255.f) + 1;
Chris@40: 	break;
Chris@40: 	
Chris@40:     case MeterColourScale:
Chris@119: //	value = AudioLevel::multiplier_to_preview
Chris@119: //	    (input * (m_normalizeColumns ? 1.0 : 50.0), 255) + 1;
Chris@119:         value = AudioLevel::multiplier_to_preview((input - min) / (max - min), 255) + 1;
Chris@40: 	break;
Chris@40: 	
Chris@40:     case dBColourScale:
Chris@119:         //!!! experiment with normalizing the visible area this way.
Chris@119:         //In any case, we need to have some indication of what the dB
Chris@119:         //scale is relative to.
Chris@133:         input = input / max;
Chris@133:         if (input > 0.f) {
Chris@133:             input = 10.f * log10f(input);
Chris@133:         } else {
Chris@133:             input = thresh;
Chris@133:         }
Chris@119:         if (min > 0.f) {
Chris@119:             thresh = 10.f * log10f(min);
Chris@119:             if (thresh < -80.f) thresh = -80.f;
Chris@119:         }
Chris@119: 	input = (input - thresh) / (-thresh);
Chris@119: 	if (input < 0.f) input = 0.f;
Chris@119: 	if (input > 1.f) input = 1.f;
Chris@119: 	value = int(input * 255.f) + 1;
Chris@119: 	break;
Chris@119: 
Chris@119:     case OtherColourScale:
Chris@119:         //!!! the "Other" scale is just where our current experiments go
Chris@119:         //!!! power rather than v
Chris@133:         input = (input * input) / (max * max);
Chris@133:         if (input > 0.f) {
Chris@133:             input = 10.f * log10f(input);
Chris@133:         } else {
Chris@133:             input = thresh;
Chris@133:         }
Chris@119:         if (min > 0.f) {
Chris@119:             thresh = 10.f * log10f(min * min);
Chris@119:             if (thresh < -80.f) thresh = -80.f;
Chris@119:         }
Chris@119: 	input = (input - thresh) / (-thresh);
Chris@119: 	if (input < 0.f) input = 0.f;
Chris@119: 	if (input > 1.f) input = 1.f;
Chris@119: 	value = int(input * 255.f) + 1;
Chris@119: 	break;
Chris@119:         
Chris@119: /*!!!
Chris@119: 	input = 10.f * log10f(input * input);
Chris@119:         input = 1.f / (1.f + expf(- (input + 20.f) / 10.f));
Chris@119: 
Chris@119: 	if (input < 0.f) input = 0.f;
Chris@119: 	if (input > 1.f) input = 1.f;
Chris@119: 	value = int(input * 255.f) + 1;
Chris@119: */
Chris@40: 	break;
Chris@40: 	
Chris@40:     case PhaseColourScale:
Chris@40: 	value = int((input * 127.0 / M_PI) + 128);
Chris@40: 	break;
Chris@0:     }
Chris@38:     
Chris@38:     if (value > UCHAR_MAX) value = UCHAR_MAX;
Chris@38:     if (value < 0) value = 0;
Chris@38:     return value;
Chris@0: }
Chris@0: 
Chris@40: float
Chris@40: SpectrogramLayer::getInputForDisplayValue(unsigned char uc) const
Chris@40: {
Chris@153:     //!!! unused
Chris@153: 
Chris@40:     int value = uc;
Chris@40:     float input;
Chris@40: 
Chris@120:     //!!! incorrect for normalizing visible area (and also out of date)
Chris@120:     
Chris@40:     switch (m_colourScale) {
Chris@40: 	
Chris@40:     default:
Chris@40:     case LinearColourScale:
Chris@40: 	input = float(value - 1) / 255.0 / (m_normalizeColumns ? 1 : 50);
Chris@40: 	break;
Chris@40:     
Chris@40:     case MeterColourScale:
Chris@40: 	input = AudioLevel::preview_to_multiplier(value - 1, 255)
Chris@40: 	    / (m_normalizeColumns ? 1.0 : 50.0);
Chris@40: 	break;
Chris@40: 
Chris@40:     case dBColourScale:
Chris@40: 	input = float(value - 1) / 255.0;
Chris@40: 	input = (input * 80.0) - 80.0;
Chris@40: 	input = powf(10.0, input) / 20.0;
Chris@40: 	value = int(input);
Chris@40: 	break;
Chris@40: 
Chris@119:     case OtherColourScale:
Chris@119: 	input = float(value - 1) / 255.0;
Chris@119: 	input = (input * 80.0) - 80.0;
Chris@119: 	input = powf(10.0, input) / 20.0;
Chris@119: 	value = int(input);
Chris@119: 	break;
Chris@119: 
Chris@40:     case PhaseColourScale:
Chris@40: 	input = float(value - 128) * M_PI / 127.0;
Chris@40: 	break;
Chris@40:     }
Chris@40: 
Chris@40:     return input;
Chris@40: }
Chris@40: 
Chris@40: float
Chris@40: SpectrogramLayer::getEffectiveMinFrequency() const
Chris@40: {
Chris@40:     int sr = m_model->getSampleRate();
Chris@107:     float minf = float(sr) / m_fftSize;
Chris@40: 
Chris@40:     if (m_minFrequency > 0.0) {
Chris@107: 	size_t minbin = size_t((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@40: float
Chris@40: SpectrogramLayer::getEffectiveMaxFrequency() const
Chris@40: {
Chris@40:     int sr = m_model->getSampleRate();
Chris@40:     float maxf = float(sr) / 2;
Chris@40: 
Chris@40:     if (m_maxFrequency > 0.0) {
Chris@107: 	size_t maxbin = size_t((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@44: SpectrogramLayer::getYBinRange(View *v, int y, float &q0, float &q1) const
Chris@0: {
Chris@44:     int h = v->height();
Chris@0:     if (y < 0 || y >= h) return false;
Chris@0: 
Chris@38:     int sr = m_model->getSampleRate();
Chris@40:     float minf = getEffectiveMinFrequency();
Chris@40:     float maxf = getEffectiveMaxFrequency();
Chris@0: 
Chris@38:     bool logarithmic = (m_frequencyScale == LogFrequencyScale);
Chris@38: 
Chris@130:     //!!! wrong for smoothing -- wrong fft size for fft model
Chris@114: 
Chris@44:     q0 = v->getFrequencyForY(y, minf, maxf, logarithmic);
Chris@44:     q1 = v->getFrequencyForY(y - 1, minf, maxf, logarithmic);
Chris@38: 
Chris@38:     // Now map these on to actual bins
Chris@38: 
Chris@107:     int b0 = int((q0 * m_fftSize) / sr);
Chris@107:     int b1 = int((q1 * m_fftSize) / sr);
Chris@0:     
Chris@40:     //!!! this is supposed to return fractions-of-bins, as it were, hence the floats
Chris@38:     q0 = b0;
Chris@38:     q1 = b1;
Chris@38:     
Chris@107: //    q0 = (b0 * sr) / m_fftSize;
Chris@107: //    q1 = (b1 * sr) / m_fftSize;
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@38:     
Chris@0: bool
Chris@44: SpectrogramLayer::getXBinRange(View *v, int x, float &s0, float &s1) const
Chris@0: {
Chris@21:     size_t modelStart = m_model->getStartFrame();
Chris@21:     size_t modelEnd = m_model->getEndFrame();
Chris@0: 
Chris@0:     // Each pixel column covers an exact range of sample frames:
Chris@44:     int f0 = v->getFrameForX(x) - modelStart;
Chris@44:     int 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@0:     size_t windowIncrement = getWindowIncrement();
Chris@0:     s0 = float(f0) / windowIncrement;
Chris@0:     s1 = float(f1) / windowIncrement;
Chris@0: 
Chris@0:     return true;
Chris@0: }
Chris@0:  
Chris@0: bool
Chris@44: SpectrogramLayer::getXBinSourceRange(View *v, int x, RealTime &min, RealTime &max) const
Chris@0: {
Chris@0:     float 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@44: SpectrogramLayer::getYBinSourceRange(View *v, int y, float &freqMin, float &freqMax)
Chris@0: const
Chris@0: {
Chris@0:     float 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@0:     int 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@44: SpectrogramLayer::getAdjustedYBinSourceRange(View *v, int x, int y,
Chris@35: 					     float &freqMin, float &freqMax,
Chris@35: 					     float &adjFreqMin, float &adjFreqMax)
Chris@35: const
Chris@35: {
Chris@130:     FFTModel *fft = getFFTModel(v);
Chris@114:     if (!fft) return false;
Chris@110: 
Chris@35:     float s0 = 0, s1 = 0;
Chris@44:     if (!getXBinRange(v, x, s0, s1)) return false;
Chris@35: 
Chris@35:     float 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@35:     int sr = m_model->getSampleRate();
Chris@35: 
Chris@38:     size_t windowSize = m_windowSize;
Chris@38:     size_t windowIncrement = getWindowIncrement();
Chris@38: 
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@160:             if (!fft->isColumnAvailable(s)) continue;
Chris@117: 
Chris@35: 	    float binfreq = (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@114: 	    if (!fft->isOverThreshold(s, q, m_threshold)) continue;
Chris@38: 
Chris@38: 	    float freq = binfreq;
Chris@38: 	    bool steady = false;
Chris@40: 	    
Chris@114: 	    if (s < int(fft->getWidth()) - 1) {
Chris@38: 
Chris@38: 		freq = calculateFrequency(q, 
Chris@38: 					  windowSize,
Chris@38: 					  windowIncrement,
Chris@38: 					  sr, 
Chris@114: 					  fft->getPhaseAt(s, q),
Chris@114: 					  fft->getPhaseAt(s+1, q),
Chris@38: 					  steady);
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@44: SpectrogramLayer::getXYBinSourceRange(View *v, int x, int y,
Chris@38: 				      float &min, float &max,
Chris@38: 				      float &phaseMin, float &phaseMax) const
Chris@0: {
Chris@0:     float q0 = 0, q1 = 0;
Chris@44:     if (!getYBinRange(v, y, q0, q1)) return false;
Chris@0: 
Chris@0:     float 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@122:     size_t 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@160:                     if (!fft->isColumnAvailable(s)) continue;
Chris@110:                     
Chris@110:                     float 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@114:                     value = fft->getMagnitudeAt(s, q);
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@114: size_t
Chris@114: SpectrogramLayer::getZeroPadLevel(const View *v) const
Chris@114: {
Chris@114:     //!!! tidy all this stuff
Chris@114: 
Chris@114:     if (m_binDisplay != AllBins) return 0;
Chris@118:     if (!Preferences::getInstance()->getSmoothSpectrogram()) return 0;
Chris@114:     if (m_frequencyScale == LogFrequencyScale) return 3;
Chris@114: 
Chris@114:     int sr = m_model->getSampleRate();
Chris@114:     
Chris@114:     size_t bins = m_fftSize / 2;
Chris@114:     if (m_maxFrequency > 0) {
Chris@114: 	bins = int((double(m_maxFrequency) * m_fftSize) / sr + 0.1);
Chris@114: 	if (bins > m_fftSize / 2) bins = m_fftSize / 2;
Chris@114:     }
Chris@114: 
Chris@114:     size_t 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@114: 	if (minbin >= bins) minbin = bins - 1;
Chris@114:     }
Chris@114: 
Chris@118:     float perPixel =
Chris@118:         float(v->height()) /
Chris@118:         float((bins - 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@114: size_t
Chris@114: SpectrogramLayer::getFFTSize(const View *v) const
Chris@114: {
Chris@114:     return m_fftSize * (getZeroPadLevel(v) + 1);
Chris@114: }
Chris@114: 	
Chris@130: FFTModel *
Chris@130: SpectrogramLayer::getFFTModel(const View *v) const
Chris@114: {
Chris@114:     if (!m_model) return 0;
Chris@114: 
Chris@114:     size_t fftSize = getFFTSize(v);
Chris@114: 
Chris@130:     if (m_fftModels.find(v) != m_fftModels.end()) {
Chris@178:         if (m_fftModels[v].first == 0) return 0;
Chris@130:         if (m_fftModels[v].first->getHeight() != fftSize / 2) {
Chris@130:             delete m_fftModels[v].first;
Chris@130:             m_fftModels.erase(v);
Chris@114:         }
Chris@114:     }
Chris@114: 
Chris@130:     if (m_fftModels.find(v) == 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@169:                                        fftSize,
Chris@169:                                        true,
Chris@169:                                        m_candidateFillStartFrame);
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@178:             m_fftModels[v] = FFTFillPair(0, 0);
Chris@178:             return 0;
Chris@178:         }
Chris@178: 
Chris@169:         m_fftModels[v] = FFTFillPair(model, 0);
Chris@169: 
Chris@169:         model->resume();
Chris@114:         
Chris@114:         delete m_updateTimer;
Chris@114:         m_updateTimer = new QTimer((SpectrogramLayer *)this);
Chris@114:         connect(m_updateTimer, SIGNAL(timeout()),
Chris@114:                 this, SLOT(fillTimerTimedOut()));
Chris@114:         m_updateTimer->start(200);
Chris@114:     }
Chris@114: 
Chris@130:     return m_fftModels[v].first;
Chris@114: }
Chris@114: 
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@115:         delete i->second.first;
Chris@114:     }
Chris@114:     
Chris@130:     m_fftModels.clear();
Chris@114: }
Chris@114: 
Chris@0: void
Chris@119: SpectrogramLayer::invalidateMagnitudes()
Chris@119: {
Chris@119:     m_viewMags.clear();
Chris@119:     for (std::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@119: SpectrogramLayer::updateViewMagnitudes(View *v) const
Chris@119: {
Chris@119:     MagnitudeRange mag;
Chris@119: 
Chris@119:     int x0 = 0, x1 = v->width();
Chris@119:     float s00 = 0, s01 = 0, s10 = 0, s11 = 0;
Chris@119:     
Chris@119:     getXBinRange(v, x0, s00, s01);
Chris@119:     getXBinRange(v, x1, s10, s11);
Chris@119: 
Chris@119:     int s0 = int(std::min(s00, s10) + 0.0001);
Chris@119:     int s1 = int(std::max(s01, s11));
Chris@119: 
Chris@119:     if (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@119:     std::cerr << "SpectrogramLayer::updateViewMagnitudes returning from cols "
Chris@119:               << s0 << " -> " << s1 << " inclusive" << std::endl;
Chris@119: 
Chris@119:     if (!mag.isSet()) return false;
Chris@119:     if (mag == m_viewMags[v]) return false;
Chris@119:     m_viewMags[v] = mag;
Chris@119:     return true;
Chris@119: }
Chris@119: 
Chris@119: void
Chris@44: SpectrogramLayer::paint(View *v, QPainter &paint, QRect rect) const
Chris@0: {
Chris@55:     if (m_colourScheme == BlackOnWhite) {
Chris@55: 	v->setLightBackground(true);
Chris@55:     } else {
Chris@55: 	v->setLightBackground(false);
Chris@55:     }
Chris@55: 
Chris@161:     Profiler profiler("SpectrogramLayer::paint", true);
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@95:     std::cerr << "SpectrogramLayer::paint(): m_model is " << m_model << ", zoom level is " << v->getZoomLevel() << ", m_updateTimer " << m_updateTimer << std::endl;
Chris@95:     
Chris@95:     std::cerr << "rect is " << rect.x() << "," << rect.y() << " " << rect.width() << "x" << rect.height() << std::endl;
Chris@0: #endif
Chris@95: 
Chris@133:     long startFrame = v->getStartFrame();
Chris@133:     if (startFrame < 0) m_candidateFillStartFrame = 0;
Chris@133:     else m_candidateFillStartFrame = startFrame;
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@48: 	std::cerr << "SpectrogramLayer::paint(): Layer is dormant, making it undormant again" << std::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@131:     //!!! no longer use cache-fill thread
Chris@131:     const_cast<SpectrogramLayer *>(this)->Layer::setLayerDormant(v, false);
Chris@48: 
Chris@114:     size_t fftSize = getFFTSize(v);
Chris@130:     FFTModel *fft = getFFTModel(v);
Chris@114:     if (!fft) {
Chris@130: 	std::cerr << "ERROR: SpectrogramLayer::paint(): No FFT model, returning" << std::endl;
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@95:     PixmapCache &cache = m_pixmapCaches[v];
Chris@95: 
Chris@95: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@95:     std::cerr << "SpectrogramLayer::paint(): pixmap cache valid area " << cache.validArea.x() << ", " << cache.validArea.y() << ", " << cache.validArea.width() << "x" << cache.validArea.height() << std::endl;
Chris@95: #endif
Chris@95: 
Chris@0:     bool stillCacheing = (m_updateTimer != 0);
Chris@0: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@0:     std::cerr << "SpectrogramLayer::paint(): Still cacheing = " << stillCacheing << std::endl;
Chris@0: #endif
Chris@0: 
Chris@44:     int zoomLevel = v->getZoomLevel();
Chris@0: 
Chris@0:     int x0 = 0;
Chris@44:     int x1 = v->width();
Chris@0:     int y0 = 0;
Chris@44:     int y1 = v->height();
Chris@0: 
Chris@0:     bool recreateWholePixmapCache = true;
Chris@0: 
Chris@95:     x0 = rect.left();
Chris@95:     x1 = rect.right() + 1;
Chris@95:     y0 = rect.top();
Chris@95:     y1 = rect.bottom() + 1;
Chris@95: 
Chris@95:     if (cache.validArea.width() > 0) {
Chris@95: 
Chris@95: 	if (int(cache.zoomLevel) == zoomLevel &&
Chris@95: 	    cache.pixmap.width() == v->width() &&
Chris@95: 	    cache.pixmap.height() == v->height()) {
Chris@95: 
Chris@95: 	    if (v->getXForFrame(cache.startFrame) ==
Chris@95: 		v->getXForFrame(startFrame) &&
Chris@95:                 cache.validArea.x() <= x0 &&
Chris@95:                 cache.validArea.x() + cache.validArea.width() >= x1) {
Chris@0: 	    
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@0: 		std::cerr << "SpectrogramLayer: pixmap cache good" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@95: 		paint.drawPixmap(rect, cache.pixmap, rect);
Chris@121:                 illuminateLocalFeatures(v, paint);
Chris@0: 		return;
Chris@0: 
Chris@0: 	    } else {
Chris@0: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@0: 		std::cerr << "SpectrogramLayer: pixmap cache partially OK" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@0: 		recreateWholePixmapCache = false;
Chris@0: 
Chris@95: 		int dx = v->getXForFrame(cache.startFrame) -
Chris@44: 		         v->getXForFrame(startFrame);
Chris@0: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@95: 		std::cerr << "SpectrogramLayer: dx = " << dx << " (pixmap cache " << cache.pixmap.width() << "x" << cache.pixmap.height() << ")" << std::endl;
Chris@0: #endif
Chris@0: 
Chris@95: 		if (dx != 0 &&
Chris@95:                     dx > -cache.pixmap.width() &&
Chris@95:                     dx <  cache.pixmap.width()) {
Chris@0: 
Chris@0: #if defined(Q_WS_WIN32) || defined(Q_WS_MAC)
Chris@0: 		    // Copying a pixmap to itself doesn't work
Chris@0: 		    // properly on Windows or Mac (it only works when
Chris@0: 		    // moving in one direction).
Chris@0: 
Chris@0: 		    //!!! Need a utility function for this
Chris@0: 
Chris@0: 		    static QPixmap *tmpPixmap = 0;
Chris@0: 		    if (!tmpPixmap ||
Chris@95: 			tmpPixmap->width() != cache.pixmap.width() ||
Chris@95: 			tmpPixmap->height() != cache.pixmap.height()) {
Chris@0: 			delete tmpPixmap;
Chris@95: 			tmpPixmap = new QPixmap(cache.pixmap.width(),
Chris@95: 						cache.pixmap.height());
Chris@0: 		    }
Chris@0: 		    QPainter cachePainter;
Chris@0: 		    cachePainter.begin(tmpPixmap);
Chris@95: 		    cachePainter.drawPixmap(0, 0, cache.pixmap);
Chris@0: 		    cachePainter.end();
Chris@95: 		    cachePainter.begin(&cache.pixmap);
Chris@0: 		    cachePainter.drawPixmap(dx, 0, *tmpPixmap);
Chris@0: 		    cachePainter.end();
Chris@0: #else
Chris@95: 		    QPainter cachePainter(&cache.pixmap);
Chris@95: 		    cachePainter.drawPixmap(dx, 0, cache.pixmap);
Chris@0: 		    cachePainter.end();
Chris@0: #endif
Chris@0: 
Chris@95:                     int px = cache.validArea.x();
Chris@95:                     int pw = cache.validArea.width();
Chris@0: 
Chris@0: 		    if (dx < 0) {
Chris@95: 			x0 = cache.pixmap.width() + dx;
Chris@95: 			x1 = cache.pixmap.width();
Chris@95:                         px += dx;
Chris@95:                         if (px < 0) {
Chris@95:                             pw += px;
Chris@95:                             px = 0;
Chris@95:                             if (pw < 0) pw = 0;
Chris@95:                         }
Chris@0: 		    } else {
Chris@0: 			x0 = 0;
Chris@0: 			x1 = dx;
Chris@95:                         px += dx;
Chris@95:                         if (px + pw > cache.pixmap.width()) {
Chris@95:                             pw = int(cache.pixmap.width()) - px;
Chris@95:                             if (pw < 0) pw = 0;
Chris@95:                         }
Chris@0: 		    }
Chris@95:                     
Chris@95:                     cache.validArea =
Chris@95:                         QRect(px, cache.validArea.y(),
Chris@95:                               pw, cache.validArea.height());
Chris@95: 
Chris@95: 		    paint.drawPixmap(rect & cache.validArea,
Chris@95:                                      cache.pixmap,
Chris@95:                                      rect & cache.validArea);
Chris@0: 		}
Chris@0: 	    }
Chris@0: 	} else {
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@0: 	    std::cerr << "SpectrogramLayer: pixmap cache useless" << std::endl;
Chris@0: #endif
Chris@95:             cache.validArea = QRect();
Chris@0: 	}
Chris@0:     }
Chris@95: 
Chris@92: /*
Chris@0:     if (stillCacheing) {
Chris@0: 	x0 = rect.left();
Chris@0: 	x1 = rect.right() + 1;
Chris@0: 	y0 = rect.top();
Chris@0: 	y1 = rect.bottom() + 1;
Chris@0:     }
Chris@92: */
Chris@95: 
Chris@133:     if (updateViewMagnitudes(v)) {
Chris@133:         std::cerr << "SpectrogramLayer: magnitude range changed to [" << m_viewMags[v].getMin() << "->" << m_viewMags[v].getMax() << "]" << std::endl;
Chris@133:         recreateWholePixmapCache = true;
Chris@133:     } else {
Chris@133:         std::cerr << "No change in magnitude range [" << m_viewMags[v].getMin() << "->" << m_viewMags[v].getMax() << "]" << std::endl;
Chris@133:     }
Chris@133: 
Chris@95:     if (recreateWholePixmapCache) {
Chris@95:         x0 = 0;
Chris@95:         x1 = v->width();
Chris@95:     }
Chris@95: 
Chris@96:     int paintBlockWidth = (300000 / zoomLevel);
Chris@96:     if (paintBlockWidth < 20) paintBlockWidth = 20;
Chris@96: 
Chris@96:     if (cache.validArea.width() > 0) {
Chris@96: 
Chris@96:         int vx0 = 0, vx1 = 0;
Chris@96:         vx0 = cache.validArea.x();
Chris@96:         vx1 = cache.validArea.x() + cache.validArea.width();
Chris@96:         
Chris@96: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@96:         std::cerr << "x0 " << x0 << ", x1 " << x1 << ", vx0 " << vx0 << ", vx1 " << vx1 << ", paintBlockWidth " << paintBlockWidth << std::endl;
Chris@96: #endif            
Chris@96:         if (x0 < vx0) {
Chris@96:             if (x0 + paintBlockWidth < vx0) {
Chris@96:                 x0 = vx0 - paintBlockWidth;
Chris@96:             } else {
Chris@96:                 x0 = 0;
Chris@96:             }
Chris@96:         } else if (x0 > vx1) {
Chris@96:             x0 = vx1;
Chris@96:         }
Chris@95:             
Chris@96:         if (x1 < vx0) {
Chris@96:             x1 = vx0;
Chris@96:         } else if (x1 > vx1) {
Chris@96:             if (vx1 + paintBlockWidth < x1) {
Chris@96:                 x1 = vx1 + paintBlockWidth;
Chris@96:             } else {
Chris@96:                 x1 = v->width();
Chris@95:             }
Chris@96:         }
Chris@95:             
Chris@96:         cache.validArea = QRect
Chris@96:             (std::min(vx0, x0), cache.validArea.y(),
Chris@96:              std::max(vx1 - std::min(vx0, x0),
Chris@96:                       x1 - std::min(vx0, x0)),
Chris@96:              cache.validArea.height());
Chris@95:             
Chris@96:     } else {
Chris@96:         if (x1 > x0 + paintBlockWidth) {
Chris@133:             int sfx = x1;
Chris@133:             if (startFrame < 0) sfx = v->getXForFrame(0);
Chris@133:             if (sfx >= x0 && sfx + paintBlockWidth <= x1) {
Chris@133:                 x0 = sfx;
Chris@133:                 x1 = x0 + paintBlockWidth;
Chris@133:             } else {
Chris@133:                 int mid = (x1 + x0) / 2;
Chris@133:                 x0 = mid - paintBlockWidth/2;
Chris@133:                 x1 = x0 + paintBlockWidth;
Chris@133:             }
Chris@95:         }
Chris@96:         cache.validArea = QRect(x0, 0, x1 - x0, v->height());
Chris@95:     }
Chris@95: 
Chris@0:     int w = x1 - x0;
Chris@0:     int h = y1 - y0;
Chris@0: 
Chris@95: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@95:     std::cerr << "x0 " << x0 << ", x1 " << x1 << ", w " << w << ", h " << h << std::endl;
Chris@95: #endif
Chris@95: 
Chris@95:     if (m_drawBuffer.width() < w || m_drawBuffer.height() < h) {
Chris@95:         m_drawBuffer = QImage(w, h, QImage::Format_RGB32);
Chris@95:     }
Chris@95: 
Chris@97:     m_drawBuffer.fill(m_colourMap.getColour(0).rgb());
Chris@35: 
Chris@37:     int 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@35:     
Chris@114:     size_t bins = fftSize / 2;
Chris@35:     if (m_maxFrequency > 0) {
Chris@114: 	bins = int((double(m_maxFrequency) * fftSize) / sr + 0.1);
Chris@114: 	if (bins > fftSize / 2) bins = fftSize / 2;
Chris@35:     }
Chris@111: 
Chris@40:     size_t minbin = 1;
Chris@37:     if (m_minFrequency > 0) {
Chris@114: 	minbin = int((double(m_minFrequency) * fftSize) / sr + 0.1);
Chris@40: 	if (minbin < 1) minbin = 1;
Chris@37: 	if (minbin >= bins) minbin = bins - 1;
Chris@37:     }
Chris@37: 
Chris@114:     float minFreq = (float(minbin) * sr) / fftSize;
Chris@114:     float maxFreq = (float(bins) * sr) / fftSize;
Chris@0: 
Chris@122:     float displayMinFreq = minFreq;
Chris@122:     float displayMaxFreq = maxFreq;
Chris@122: 
Chris@122:     if (fftSize != m_fftSize) {
Chris@122:         displayMinFreq = getEffectiveMinFrequency();
Chris@122:         displayMaxFreq = getEffectiveMaxFrequency();
Chris@122:     }
Chris@122: 
Chris@92:     float ymag[h];
Chris@92:     float ydiv[h];
Chris@122:     float yval[bins + 1]; //!!! cache this?
Chris@92: 
Chris@38:     size_t increment = getWindowIncrement();
Chris@40:     
Chris@40:     bool logarithmic = (m_frequencyScale == LogFrequencyScale);
Chris@38: 
Chris@92:     for (size_t q = minbin; q <= bins; ++q) {
Chris@114:         float f0 = (float(q) * sr) / fftSize;
Chris@122:         yval[q] = v->getYForFrequency(f0, displayMinFreq, displayMaxFreq,
Chris@122:                                       logarithmic);
Chris@122: //        std::cerr << "min: " << minFreq << ", max: " << maxFreq << ", yval[" << q << "]: " << yval[q] << std::endl;
Chris@92:     }
Chris@92: 
Chris@119:     MagnitudeRange overallMag = m_viewMags[v];
Chris@119:     bool overallMagChanged = false;
Chris@119: 
Chris@162:     bool fftSuspended = false;
Chris@131: 
Chris@137: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@137:     std::cerr << (float(v->getFrameForX(1) - v->getFrameForX(0)) / increment) << " bins per pixel" << std::endl;
Chris@137: #endif
Chris@137: 
Chris@35:     for (int x = 0; x < w; ++x) {
Chris@35: 
Chris@35: 	for (int y = 0; y < h; ++y) {
Chris@134: 	    ymag[y] = 0.f;
Chris@134: 	    ydiv[y] = 0.f;
Chris@35: 	}
Chris@35: 
Chris@35: 	float s0 = 0, s1 = 0;
Chris@35: 
Chris@44: 	if (!getXBinRange(v, x0 + x, s0, s1)) {
Chris@95: 	    assert(x <= m_drawBuffer.width());
Chris@35: 	    continue;
Chris@35: 	}
Chris@35: 
Chris@35: 	int s0i = int(s0 + 0.001);
Chris@35: 	int s1i = int(s1);
Chris@35: 
Chris@114: 	if (s1i >= fft->getWidth()) {
Chris@114: 	    if (s0i >= fft->getWidth()) {
Chris@45: 		continue;
Chris@45: 	    } else {
Chris@45: 		s1i = s0i;
Chris@45: 	    }
Chris@45: 	}
Chris@92: 
Chris@92:         for (int s = s0i; s <= s1i; ++s) {
Chris@92: 
Chris@160:             if (!fft->isColumnAvailable(s)) continue;
Chris@162:             
Chris@162:             if (!fftSuspended) {
Chris@162:                 fft->suspendWrites();
Chris@162:                 fftSuspended = true;
Chris@162:             }
Chris@162: 
Chris@119:             MagnitudeRange mag;
Chris@92: 
Chris@92:             for (size_t q = minbin; q < bins; ++q) {
Chris@92: 
Chris@92:                 float y0 = yval[q + 1];
Chris@92:                 float y1 = yval[q];
Chris@92: 
Chris@40: 		if (m_binDisplay == PeakBins ||
Chris@40: 		    m_binDisplay == PeakFrequencies) {
Chris@114: 		    if (!fft->isLocalPeak(s, q)) continue;
Chris@40: 		}
Chris@114: 
Chris@114:                 if (m_threshold != 0.f &&
Chris@114:                     !fft->isOverThreshold(s, q, m_threshold)) {
Chris@114:                     continue;
Chris@114:                 }
Chris@40: 
Chris@35: 		float sprop = 1.0;
Chris@35: 		if (s == s0i) sprop *= (s + 1) - s0;
Chris@35: 		if (s == s1i) sprop *= s1 - s;
Chris@35:  
Chris@38: 		if (m_binDisplay == PeakFrequencies &&
Chris@114: 		    s < int(fft->getWidth()) - 1) {
Chris@35: 
Chris@38: 		    bool steady = false;
Chris@92:                     float f = calculateFrequency(q,
Chris@38: 						 m_windowSize,
Chris@38: 						 increment,
Chris@38: 						 sr,
Chris@114: 						 fft->getPhaseAt(s, q),
Chris@114: 						 fft->getPhaseAt(s+1, q),
Chris@38: 						 steady);
Chris@40: 
Chris@44: 		    y0 = y1 = v->getYForFrequency
Chris@122: 			(f, displayMinFreq, displayMaxFreq, logarithmic);
Chris@35: 		}
Chris@38: 		
Chris@35: 		int y0i = int(y0 + 0.001);
Chris@35: 		int y1i = int(y1);
Chris@35: 
Chris@92:                 float value;
Chris@92:                 
Chris@92:                 if (m_colourScale == PhaseColourScale) {
Chris@114:                     value = fft->getPhaseAt(s, q);
Chris@92:                 } else if (m_normalizeColumns) {
Chris@119:                     value = fft->getNormalizedMagnitudeAt(s, q);
Chris@119:                     mag.sample(value);
Chris@119:                     value *= m_gain;
Chris@92:                 } else {
Chris@119:                     value = fft->getMagnitudeAt(s, q);
Chris@119:                     mag.sample(value);
Chris@119:                     value *= m_gain;
Chris@92:                 }
Chris@92: 
Chris@35: 		for (int y = y0i; y <= y1i; ++y) {
Chris@35: 		    
Chris@35: 		    if (y < 0 || y >= h) continue;
Chris@35: 
Chris@35: 		    float yprop = sprop;
Chris@35: 		    if (y == y0i) yprop *= (y + 1) - y0;
Chris@35: 		    if (y == y1i) yprop *= y1 - y;
Chris@37: 		    ymag[y] += yprop * value;
Chris@35: 		    ydiv[y] += yprop;
Chris@35: 		}
Chris@35: 	    }
Chris@119: 
Chris@119:             if (mag.isSet()) {
Chris@119: 
Chris@119:                 m_columnMags[s].sample(mag);
Chris@119: 
Chris@119:                 if (overallMag.sample(mag)) {
Chris@119:                     //!!! scaling would change here
Chris@119:                     overallMagChanged = true;
Chris@119:                     std::cerr << "Overall mag changed (again?) at column " << s << ", to [" << overallMag.getMin() << "->" << overallMag.getMax() << "]" << std::endl;
Chris@119:                 }
Chris@119:             }
Chris@35: 	}
Chris@35: 
Chris@35: 	for (int y = 0; y < h; ++y) {
Chris@35: 
Chris@35: 	    if (ydiv[y] > 0.0) {
Chris@40: 
Chris@40: 		unsigned char pixel = 0;
Chris@40: 
Chris@38: 		float avg = ymag[y] / ydiv[y];
Chris@138: 		pixel = getDisplayValue(v, avg);
Chris@40: 
Chris@95: 		assert(x <= m_drawBuffer.width());
Chris@86: 		QColor c = m_colourMap.getColour(pixel);
Chris@95: 		m_drawBuffer.setPixel(x, y,
Chris@95:                                       qRgb(c.red(), c.green(), c.blue()));
Chris@35: 	    }
Chris@35: 	}
Chris@35:     }
Chris@35: 
Chris@119:     if (overallMagChanged) {
Chris@119:         m_viewMags[v] = overallMag;
Chris@119:         std::cerr << "Overall mag is now [" << m_viewMags[v].getMin() << "->" << m_viewMags[v].getMax() << "] - will be updating" << std::endl;
Chris@119:     } else {
Chris@119:         std::cerr << "Overall mag unchanged at [" << m_viewMags[v].getMin() << "->" << m_viewMags[v].getMax() << "]" << std::endl;
Chris@119:     }
Chris@119: 
Chris@161:     Profiler profiler2("SpectrogramLayer::paint: draw image", true);
Chris@137: 
Chris@95:     paint.drawImage(x0, y0, m_drawBuffer, 0, 0, w, h);
Chris@0: 
Chris@0:     if (recreateWholePixmapCache) {
Chris@95: 	cache.pixmap = QPixmap(v->width(), v->height());
Chris@0:     }
Chris@0: 
Chris@95:     QPainter cachePainter(&cache.pixmap);
Chris@95:     cachePainter.drawImage(x0, y0, m_drawBuffer, 0, 0, w, h);
Chris@0:     cachePainter.end();
Chris@119: 
Chris@120:     if (!m_normalizeVisibleArea || !overallMagChanged) {
Chris@0:     
Chris@119:         cache.startFrame = startFrame;
Chris@119:         cache.zoomLevel = zoomLevel;
Chris@119: 
Chris@119:         if (cache.validArea.x() > 0) {
Chris@95: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@158:             std::cerr << "SpectrogramLayer::paint() updating left (0, "
Chris@158:                       << cache.validArea.x() << ")" << std::endl;
Chris@95: #endif
Chris@119:             v->update(0, 0, cache.validArea.x(), v->height());
Chris@119:         }
Chris@119:         
Chris@119:         if (cache.validArea.x() + cache.validArea.width() <
Chris@119:             cache.pixmap.width()) {
Chris@95: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@119:             std::cerr << "SpectrogramLayer::paint() updating right ("
Chris@119:                       << cache.validArea.x() + cache.validArea.width()
Chris@119:                       << ", "
Chris@119:                       << cache.pixmap.width() - (cache.validArea.x() +
Chris@119:                                                  cache.validArea.width())
Chris@119:                       << ")" << std::endl;
Chris@95: #endif
Chris@119:             v->update(cache.validArea.x() + cache.validArea.width(),
Chris@119:                       0,
Chris@119:                       cache.pixmap.width() - (cache.validArea.x() +
Chris@119:                                               cache.validArea.width()),
Chris@119:                       v->height());
Chris@119:         }
Chris@119:     } else {
Chris@119:         // overallMagChanged
Chris@119:         cache.validArea = QRect();
Chris@119:         v->update();
Chris@95:     }
Chris@0: 
Chris@121:     illuminateLocalFeatures(v, paint);
Chris@120: 
Chris@0: #ifdef DEBUG_SPECTROGRAM_REPAINT
Chris@0:     std::cerr << "SpectrogramLayer::paint() returning" << std::endl;
Chris@0: #endif
Chris@131: 
Chris@162:     if (fftSuspended) fft->resume();
Chris@0: }
Chris@0: 
Chris@121: void
Chris@121: SpectrogramLayer::illuminateLocalFeatures(View *v, QPainter &paint) const
Chris@121: {
Chris@121:     QPoint localPos;
Chris@121:     if (!v->shouldIlluminateLocalFeatures(this, localPos) || !m_model) {
Chris@121:         return;
Chris@121:     }
Chris@121: 
Chris@180: //    std::cerr << "SpectrogramLayer: illuminateLocalFeatures("
Chris@180: //              << localPos.x() << "," << localPos.y() << ")" << std::endl;
Chris@121: 
Chris@121:     float s0, s1;
Chris@121:     float 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@121:         int y1 = getYForFrequency(v, f1);
Chris@121:         int y0 = getYForFrequency(v, f0);
Chris@121:         
Chris@180: //        std::cerr << "SpectrogramLayer: illuminate "
Chris@180: //                  << x0 << "," << y1 << " -> " << x1 << "," << y0 << std::endl;
Chris@121:         
Chris@121:         paint.setPen(Qt::white);
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@42: float
Chris@44: SpectrogramLayer::getYForFrequency(View *v, float 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@42: float
Chris@44: SpectrogramLayer::getFrequencyForY(View *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@115: SpectrogramLayer::getCompletion(View *v) const
Chris@0: {
Chris@115:     if (m_updateTimer == 0) return 100;
Chris@130:     if (m_fftModels.find(v) == m_fftModels.end()) return 100;
Chris@130: 
Chris@130:     size_t completion = m_fftModels[v].first->getCompletion();
Chris@115:     std::cerr << "SpectrogramLayer::getCompletion: completion = " << completion << std::endl;
Chris@0:     return completion;
Chris@0: }
Chris@0: 
Chris@28: bool
Chris@101: SpectrogramLayer::getValueExtents(float &min, float &max,
Chris@101:                                   bool &logarithmic, QString &unit) const
Chris@79: {
Chris@133: //!!!
Chris@133: //    min = getEffectiveMinFrequency();
Chris@133: //    max = getEffectiveMaxFrequency();
Chris@133: 
Chris@133:     if (!m_model) return false;
Chris@133: 
Chris@133:     int sr = m_model->getSampleRate();
Chris@133:     min = float(sr) / m_fftSize;
Chris@133:     max = float(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@101: SpectrogramLayer::getDisplayExtents(float &min, float &max) const
Chris@101: {
Chris@101:     min = getEffectiveMinFrequency();
Chris@101:     max = getEffectiveMaxFrequency();
Chris@101:     return true;
Chris@101: }    
Chris@101: 
Chris@101: bool
Chris@120: SpectrogramLayer::setDisplayExtents(float min, float max)
Chris@120: {
Chris@120:     if (!m_model) return false;
Chris@120:     if (min < 0) min = 0;
Chris@120:     if (max > m_model->getSampleRate()/2) max = m_model->getSampleRate()/2;
Chris@120:     
Chris@120:     size_t minf = lrintf(min);
Chris@120:     size_t maxf = lrintf(max);
Chris@120: 
Chris@120:     if (m_minFrequency == minf && m_maxFrequency == maxf) return true;
Chris@120: 
Chris@120:     invalidatePixmapCaches();
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@44: SpectrogramLayer::snapToFeatureFrame(View *v, int &frame,
Chris@28: 				     size_t &resolution,
Chris@28: 				     SnapType snap) const
Chris@13: {
Chris@13:     resolution = getWindowIncrement();
Chris@28:     int left = (frame / resolution) * resolution;
Chris@28:     int 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@77: bool
Chris@77: SpectrogramLayer::getCrosshairExtents(View *v, QPainter &paint,
Chris@77:                                       QPoint cursorPos,
Chris@77:                                       std::vector<QRect> &extents) const
Chris@77: {
Chris@77:     QRect vertical(cursorPos.x() - 12, 0, 12, v->height());
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@77:     return true;
Chris@77: }
Chris@77: 
Chris@77: void
Chris@77: SpectrogramLayer::paintCrosshairs(View *v, QPainter &paint,
Chris@77:                                   QPoint cursorPos) const
Chris@77: {
Chris@77:     paint.save();
Chris@77:     paint.setPen(m_crosshairColour);
Chris@77: 
Chris@77:     paint.drawLine(0, cursorPos.y(), cursorPos.x() - 1, cursorPos.y());
Chris@77:     paint.drawLine(cursorPos.x(), 0, cursorPos.x(), v->height());
Chris@77:     
Chris@77:     float fundamental = getFrequencyForY(v, cursorPos.y());
Chris@77: 
Chris@77:     int harmonic = 2;
Chris@77: 
Chris@77:     while (harmonic < 100) {
Chris@77: 
Chris@77:         float hy = lrintf(getYForFrequency(v, fundamental * harmonic));
Chris@77:         if (hy < 0 || hy > v->height()) 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@77:                        hy,
Chris@77:                        cursorPos.x(),
Chris@77:                        hy);
Chris@77: 
Chris@77:         ++harmonic;
Chris@77:     }
Chris@77: 
Chris@77:     paint.restore();
Chris@77: }
Chris@77: 
Chris@25: QString
Chris@44: SpectrogramLayer::getFeatureDescription(View *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@38:     float magMin = 0, magMax = 0;
Chris@38:     float phaseMin = 0, phaseMax = 0;
Chris@0:     float freqMin = 0, freqMax = 0;
Chris@35:     float 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@38: 	float dbMin = AudioLevel::multiplier_to_dB(magMin);
Chris@38: 	float 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@43: 	    dbMinString = QString("%1").arg(lrintf(dbMin));
Chris@43: 	}
Chris@43: 	if (dbMax == AudioLevel::DB_FLOOR) {
Chris@43: 	    dbMaxString = tr("-Inf");
Chris@43: 	} else {
Chris@43: 	    dbMaxString = QString("%1").arg(lrintf(dbMax));
Chris@43: 	}
Chris@25: 	if (lrintf(dbMin) != lrintf(dbMax)) {
Chris@25: 	    text += tr("dB:\t%1 - %2").arg(lrintf(dbMin)).arg(lrintf(dbMax));
Chris@25: 	} else {
Chris@25: 	    text += tr("dB:\t%1").arg(lrintf(dbMin));
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@119: /*!!!
Chris@40:     switch (m_colourScale) {
Chris@40:     default:
Chris@40:     case LinearColourScale:
Chris@40: 	cw = paint.fontMetrics().width(QString("0.00"));
Chris@40: 	break;
Chris@40: 
Chris@40:     case MeterColourScale:
Chris@40:     case dBColourScale:
Chris@119:     case OtherColourScale:
Chris@40: 	cw = std::max(paint.fontMetrics().width(tr("-Inf")),
Chris@40: 		      paint.fontMetrics().width(tr("-90")));
Chris@40: 	break;
Chris@40: 
Chris@40:     case PhaseColourScale:
Chris@40: 	cw = paint.fontMetrics().width(QString("-") + QChar(0x3c0));
Chris@40: 	break;
Chris@40:     }
Chris@119: */
Chris@119: 
Chris@40: 
Chris@40:     return cw;
Chris@40: }
Chris@40: 
Chris@40: int
Chris@44: SpectrogramLayer::getVerticalScaleWidth(View *v, QPainter &paint) const
Chris@0: {
Chris@0:     if (!m_model || !m_model->isOK()) return 0;
Chris@0: 
Chris@40:     int 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@0:     int fw = paint.fontMetrics().width(QString("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@44: SpectrogramLayer::paintVerticalScale(View *v, QPainter &paint, QRect rect) const
Chris@0: {
Chris@0:     if (!m_model || !m_model->isOK()) {
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@161:     Profiler profiler("SpectrogramLayer::paintVerticalScale", true);
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@107:     size_t bins = m_fftSize / 2;
Chris@0:     int 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@40:     int 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@119:     if (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@119: /*!!!
Chris@40: 	switch (m_colourScale) {
Chris@40: 	default:
Chris@40: 	case LinearColourScale:
Chris@40: 	    top = (m_normalizeColumns ? "1.0" : "0.02");
Chris@40: 	    bottom = (m_normalizeColumns ? "0.0" : "0.00");
Chris@40: 	    break;
Chris@40: 
Chris@40: 	case MeterColourScale:
Chris@40: 	    top = (m_normalizeColumns ? QString("0") :
Chris@40: 		   QString("%1").arg(int(AudioLevel::multiplier_to_dB(0.02))));
Chris@40: 	    bottom = QString("%1").
Chris@40: 		arg(int(AudioLevel::multiplier_to_dB
Chris@40: 			(AudioLevel::preview_to_multiplier(0, 255))));
Chris@40: 	    break;
Chris@40: 
Chris@40: 	case dBColourScale:
Chris@119: 	case OtherColourScale:
Chris@40: 	    top = "0";
Chris@40: 	    bottom = "-80";
Chris@40: 	    break;
Chris@40: 
Chris@40: 	case PhaseColourScale:
Chris@40: 	    top = QChar(0x3c0);
Chris@40: 	    bottom = "-" + top;
Chris@40: 	    break;
Chris@40: 	}
Chris@119: */
Chris@119:         float min = m_viewMags[v].getMin();
Chris@119:         float max = m_viewMags[v].getMax();
Chris@119: 
Chris@119:         float dBmin = AudioLevel::multiplier_to_dB(min);
Chris@119:         float dBmax = AudioLevel::multiplier_to_dB(max);
Chris@119: 
Chris@120:         if (dBmax < -60.f) dBmax = -60.f;
Chris@120:         else top = QString("%1").arg(lrintf(dBmax));
Chris@120: 
Chris@120:         if (dBmin < dBmax - 60.f) dBmin = dBmax - 60.f;
Chris@119:         bottom = QString("%1").arg(lrintf(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@119:             float dBval = dBmin + (((dBmax - dBmin) * i) / (ch - 1));
Chris@119:             int idb = int(dBval);
Chris@119: 
Chris@119:             float value = AudioLevel::dB_to_multiplier(dBval);
Chris@119:             int colour = getDisplayValue(v, value * m_gain);
Chris@119: /*
Chris@119:             float value = min + (((max - min) * i) / (ch - 1));
Chris@119:             if (value < m_threshold) value = 0.f;
Chris@119:             int colour = getDisplayValue(v, value * m_gain);
Chris@119: */
Chris@119: /*
Chris@119: 	    int colour = (i * 255) / ch + 1;
Chris@119: */
Chris@119: 	    paint.setPen(m_colourMap.getColour(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: //	    paint.drawLine(5, 4 + textHeight + ch - i,
Chris@119: //			   cw + 2, 4 + textHeight + ch - i);
Chris@119: 
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@119:                 paint.setPen(Qt::black);
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@119:                 paint.setPen(Qt::white);
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@44:     for (int y = 0; y < v->height(); ++y) {
Chris@0: 
Chris@0: 	float q0, q1;
Chris@44: 	if (!getYBinRange(v, v->height() - 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@107: 	int freq = (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@40: 	if (bin == 1) text = QString("%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@40: 	    int tx = w - 3 - paint.fontMetrics().width(text) - std::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@40: 	paint.drawLine(w - pkw - 1, 0, w - pkw - 1, h);
Chris@40: 
Chris@110: 	int sr = m_model->getSampleRate();
Chris@40: 	float minf = getEffectiveMinFrequency();
Chris@40: 	float maxf = getEffectiveMaxFrequency();
Chris@40: 
Chris@122: 	int py = h, ppy = h;
Chris@40: 	paint.setBrush(paint.pen().color());
Chris@40: 
Chris@40: 	for (int i = 0; i < 128; ++i) {
Chris@40: 
Chris@40: 	    float f = Pitch::getFrequencyForPitch(i);
Chris@44: 	    int y = lrintf(v->getYForFrequency(f, minf, maxf, true));
Chris@122: 
Chris@122:             if (y < -2) break;
Chris@122:             if (y > h + 2) {
Chris@122:                 continue;
Chris@122:             }
Chris@122: 
Chris@40: 	    int n = (i % 12);
Chris@122: 
Chris@122:             if (n == 1) {
Chris@122:                 // C# -- fill the C from here
Chris@122:                 if (ppy - y > 2) {
Chris@122:                     paint.fillRect(w - pkw,
Chris@122: //                                   y - (py - y) / 2 - (py - y) / 4, 
Chris@122:                                    y,
Chris@122:                                    pkw,
Chris@122:                                    (py + ppy) / 2 - y,
Chris@122: //                                   py - y + 1,
Chris@122:                                    Qt::gray);
Chris@122:                 }
Chris@122:             }
Chris@122: 
Chris@40: 	    if (n == 1 || n == 3 || n == 6 || n == 8 || n == 10) {
Chris@40: 		// black notes
Chris@40: 		paint.drawLine(w - pkw, y, w, y);
Chris@41: 		int rh = ((py - y) / 4) * 2;
Chris@41: 		if (rh < 2) rh = 2;
Chris@41: 		paint.drawRect(w - pkw, y - (py-y)/4, pkw/2, rh);
Chris@40: 	    } else if (n == 0 || n == 5) {
Chris@122: 		// C, F
Chris@40: 		if (py < h) {
Chris@40: 		    paint.drawLine(w - pkw, (y + py) / 2, w, (y + py) / 2);
Chris@40: 		}
Chris@40: 	    }
Chris@40: 
Chris@122:             ppy = py;
Chris@40: 	    py = y;
Chris@40: 	}
Chris@40:     }
Chris@0: }
Chris@0: 
Chris@133: int
Chris@133: SpectrogramLayer::getVerticalZoomSteps(int &defaultStep) const
Chris@133: {
Chris@135:     // Vertical zoom step 0 shows the entire range from DC -> Nyquist
Chris@135:     // frequency.  Step 1 shows 2^(1/4) of the range of step 0, and so
Chris@135:     // on until the visible range is smaller than the frequency step
Chris@135:     // between bins at the current fft size.
Chris@135: 
Chris@135:     if (!m_model) return 0;
Chris@135:     
Chris@135:     float min, max;
Chris@135:     int sr = m_model->getSampleRate();
Chris@135:     min = float(sr) / m_fftSize;
Chris@135:     max = float(sr) / 2;
Chris@135:     
Chris@135:     float dist = max - min;
Chris@135: 
Chris@135:     int n = 0;
Chris@133:     defaultStep = 0;
Chris@136:     bool haveDefault = false;
Chris@135:     float s2 = sqrtf(sqrtf(2));
Chris@135:     while (dist > min) {
Chris@136:         if (!haveDefault && max <= m_initialMaxFrequency) {
Chris@135:             defaultStep = n;
Chris@136:             haveDefault = true;
Chris@135:         }
Chris@135:         ++n;
Chris@135:         dist /= s2;
Chris@135:         max = min + dist;
Chris@135:     }
Chris@135: 
Chris@135:     return n;
Chris@133: }
Chris@133: 
Chris@133: int
Chris@133: SpectrogramLayer::getCurrentVerticalZoomStep() const
Chris@133: {
Chris@133:     if (!m_model) return 0;
Chris@133: 
Chris@133:     float dmin, dmax;
Chris@133:     getDisplayExtents(dmin, dmax);
Chris@133:     
Chris@133:     float mmin, mmax;
Chris@133:     int sr = m_model->getSampleRate();
Chris@133:     mmin = float(sr) / m_fftSize;
Chris@133:     mmax = float(sr) / 2;
Chris@133:     
Chris@133:     float mdist = mmax - mmin;
Chris@133:     float ddist = dmax - dmin;
Chris@133:     
Chris@133:     int n = 0;
Chris@135:     int discard = 0;
Chris@135:     int m = getVerticalZoomSteps(discard);
Chris@135:     float s2 = sqrtf(sqrtf(2));
Chris@133:     while (mdist > ddist) {
Chris@135:         if (++n > m) break;
Chris@133:         mdist /= s2;
Chris@133:     }
Chris@133: 
Chris@133:     return n;
Chris@133: }
Chris@133: 
Chris@133: void
Chris@133: SpectrogramLayer::setVerticalZoomStep(int step)
Chris@133: {
Chris@133:     //!!! does not do the right thing for log scale
Chris@133: 
Chris@133:     float dmin, dmax;
Chris@133:     getDisplayExtents(dmin, dmax);
Chris@133:     
Chris@133:     float mmin, mmax;
Chris@133:     int sr = m_model->getSampleRate();
Chris@133:     mmin = float(sr) / m_fftSize;
Chris@133:     mmax = float(sr) / 2;
Chris@133:     
Chris@133:     float ddist = mmax - mmin;
Chris@133:     
Chris@133:     int n = 0;
Chris@135:     float s2 = sqrtf(sqrtf(2));
Chris@133:     while (n < step) {
Chris@133:         ddist /= s2;
Chris@133:         ++n;
Chris@133:     }
Chris@133: 
Chris@133:     float dmid = (dmax + dmin) / 2;
Chris@133:     float newmin = dmid - ddist / 2;
Chris@133:     float newmax = dmid + ddist / 2;
Chris@133:     
Chris@133:     if (newmin < mmin) newmin = mmin;
Chris@133:     if (newmax > mmax) newmax = mmax;
Chris@133:     
Chris@133:     setMinFrequency(newmin);
Chris@133:     setMaxFrequency(newmax);
Chris@133: }
Chris@133: 
Chris@6: QString
Chris@6: SpectrogramLayer::toXmlString(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@37: 		 "binDisplay=\"%7\" "
Chris@153: 		 "normalizeColumns=\"%8\" "
Chris@153:                  "normalizeVisibleArea=\"%9\"")
Chris@37: 	.arg(m_minFrequency)
Chris@6: 	.arg(m_maxFrequency)
Chris@6: 	.arg(m_colourScale)
Chris@6: 	.arg(m_colourScheme)
Chris@37: 	.arg(m_colourRotation)
Chris@35: 	.arg(m_frequencyScale)
Chris@37: 	.arg(m_binDisplay)
Chris@153: 	.arg(m_normalizeColumns ? "true" : "false")
Chris@153:         .arg(m_normalizeVisibleArea ? "true" : "false");
Chris@6: 
Chris@6:     return Layer::toXmlString(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@11:     size_t windowSize = attributes.value("windowSize").toUInt(&ok);
Chris@11:     if (ok) setWindowSize(windowSize);
Chris@11: 
Chris@97:     size_t windowHopLevel = attributes.value("windowHopLevel").toUInt(&ok);
Chris@97:     if (ok) setWindowHopLevel(windowHopLevel);
Chris@97:     else {
Chris@97:         size_t 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@37:     size_t minFrequency = attributes.value("minFrequency").toUInt(&ok);
Chris@37:     if (ok) setMinFrequency(minFrequency);
Chris@37: 
Chris@11:     size_t maxFrequency = attributes.value("maxFrequency").toUInt(&ok);
Chris@11:     if (ok) setMaxFrequency(maxFrequency);
Chris@11: 
Chris@11:     ColourScale colourScale = (ColourScale)
Chris@11: 	attributes.value("colourScale").toInt(&ok);
Chris@11:     if (ok) setColourScale(colourScale);
Chris@11: 
Chris@11:     ColourScheme colourScheme = (ColourScheme)
Chris@11: 	attributes.value("colourScheme").toInt(&ok);
Chris@11:     if (ok) setColourScheme(colourScheme);
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@36:     setNormalizeColumns(normalizeColumns);
Chris@153: 
Chris@153:     bool normalizeVisibleArea =
Chris@153: 	(attributes.value("normalizeVisibleArea").trimmed() == "true");
Chris@153:     setNormalizeVisibleArea(normalizeVisibleArea);
Chris@11: }
Chris@11: