void DlgPrefWaveform::slotUpdate() {
WaveformWidgetFactory* factory = WaveformWidgetFactory::instance();
if (factory->isOpenGlAvailable() || factory->isOpenGlesAvailable()) {
openGlStatusIcon->setText(factory->getOpenGLVersion());
} else {
openGlStatusIcon->setText(tr("OpenGL not available") + ": " + factory->getOpenGLVersion());
}
WaveformWidgetType::Type currentType = factory->getType();
int currentIndex = waveformTypeComboBox->findData(currentType);
if (currentIndex != -1 && waveformTypeComboBox->currentIndex() != currentIndex) {
waveformTypeComboBox->setCurrentIndex(currentIndex);
}
frameRateSpinBox->setValue(factory->getFrameRate());
frameRateSlider->setValue(factory->getFrameRate());
endOfTrackWarningTimeSpinBox->setValue(factory->getEndOfTrackWarningTime());
endOfTrackWarningTimeSlider->setValue(factory->getEndOfTrackWarningTime());
synchronizeZoomCheckBox->setChecked(factory->isZoomSync());
allVisualGain->setValue(factory->getVisualGain(WaveformWidgetFactory::All));
lowVisualGain->setValue(factory->getVisualGain(WaveformWidgetFactory::Low));
midVisualGain->setValue(factory->getVisualGain(WaveformWidgetFactory::Mid));
highVisualGain->setValue(factory->getVisualGain(WaveformWidgetFactory::High));
normalizeOverviewCheckBox->setChecked(factory->isOverviewNormalized());
// Round zoom to int to get a default zoom index.
defaultZoomComboBox->setCurrentIndex(static_cast<int>(factory->getDefaultZoom()) - 1);
playMarkerPositionSlider->setValue(factory->getPlayMarkerPosition() * 100);
beatGridAlphaSpinBox->setValue(factory->beatGridAlpha());
beatGridAlphaSlider->setValue(factory->beatGridAlpha());
// By default we set RGB woverview = "2"
int overviewType = m_pConfig->getValue(
ConfigKey("[Waveform]","WaveformOverviewType"), 2);
if (overviewType != waveformOverviewComboBox->currentIndex()) {
waveformOverviewComboBox->setCurrentIndex(overviewType);
}
WaveformSettings waveformSettings(m_pConfig);
enableWaveformCaching->setChecked(waveformSettings.waveformCachingEnabled());
enableWaveformGenerationWithAnalysis->setChecked(
waveformSettings.waveformGenerationWithAnalysisEnabled());
calculateCachedWaveformDiskUsage();
}
void WaveformRendererHSV::draw(QPainter* painter,
QPaintEvent* /*event*/) {
const TrackPointer trackInfo = m_waveformRenderer->getTrackInfo();
if (!trackInfo) {
return;
}
const Waveform* waveform = trackInfo->getWaveform();
if (waveform == NULL) {
return;
}
const int dataSize = waveform->getDataSize();
if (dataSize <= 1) {
return;
}
const WaveformData* data = waveform->data();
if (data == NULL) {
return;
}
painter->save();
painter->setRenderHints(QPainter::Antialiasing, false);
painter->setRenderHints(QPainter::HighQualityAntialiasing, false);
painter->setRenderHints(QPainter::SmoothPixmapTransform, false);
painter->setWorldMatrixEnabled(false);
painter->resetTransform();
const double firstVisualIndex = m_waveformRenderer->getFirstDisplayedPosition() * dataSize;
const double lastVisualIndex = m_waveformRenderer->getLastDisplayedPosition() * dataSize;
const double offset = firstVisualIndex;
// Represents the # of waveform data points per horizontal pixel.
const double gain = (lastVisualIndex - firstVisualIndex) /
(double)m_waveformRenderer->getWidth();
float allGain(1.0);
allGain = m_waveformRenderer->getGain();
WaveformWidgetFactory* factory = WaveformWidgetFactory::instance();
allGain *= factory->getVisualGain(::WaveformWidgetFactory::All);
// Save HSV of waveform color. NOTE(rryan): On ARM, qreal is float so it's
// important we use qreal here and not double or float or else we will get
// build failures on ARM.
qreal h, s, v;
// Get base color of waveform in the HSV format (s and v isn't use)
m_pColors->getLowColor().getHsvF(&h, &s, &v);
QColor color;
float lo, hi, total;
const float halfHeight = (float)m_waveformRenderer->getHeight()/2.0;
const float heightFactor = allGain*halfHeight/255.0;
//draw reference line
painter->setPen(m_axesColor);
painter->drawLine(0,halfHeight,m_waveformRenderer->getWidth(),halfHeight);
for (int x = 0; x < m_waveformRenderer->getWidth(); ++x) {
// Width of the x position in visual indices.
const double xSampleWidth = gain * x;
// Effective visual index of x
const double xVisualSampleIndex = xSampleWidth + offset;
// Our current pixel (x) corresponds to a number of visual samples
// (visualSamplerPerPixel) in our waveform object. We take the max of
// all the data points on either side of xVisualSampleIndex within a
// window of 'maxSamplingRange' visual samples to measure the maximum
// data point contained by this pixel.
double maxSamplingRange = gain / 2.0;
// Since xVisualSampleIndex is in visual-samples (e.g. R,L,R,L) we want
// to check +/- maxSamplingRange frames, not samples. To do this, divide
// xVisualSampleIndex by 2. Since frames indices are integers, we round
// to the nearest integer by adding 0.5 before casting to int.
int visualFrameStart = int(xVisualSampleIndex / 2.0 - maxSamplingRange + 0.5);
int visualFrameStop = int(xVisualSampleIndex / 2.0 + maxSamplingRange + 0.5);
const int lastVisualFrame = dataSize / 2 - 1;
// We now know that some subset of [visualFrameStart, visualFrameStop]
// lies within the valid range of visual frames. Clamp
// visualFrameStart/Stop to within [0, lastVisualFrame].
visualFrameStart = math_max(math_min(lastVisualFrame, visualFrameStart), 0);
visualFrameStop = math_max(math_min(lastVisualFrame, visualFrameStop), 0);
int visualIndexStart = visualFrameStart * 2;
int visualIndexStop = visualFrameStop * 2;
int maxLow[2] = {0, 0};
int maxHigh[2] = {0, 0};
int maxMid[2] = {0, 0};
int maxAll[2] = {0, 0};
for (int i = visualIndexStart;
i >= 0 && i + 1 < dataSize && i + 1 <= visualIndexStop; i += 2) {
const WaveformData& waveformData = *(data + i);
const WaveformData& waveformDataNext = *(data + i + 1);
maxLow[0] = math_max(maxLow[0], (int)waveformData.filtered.low);
maxLow[1] = math_max(maxLow[1], (int)waveformDataNext.filtered.low);
maxMid[0] = math_max(maxMid[0], (int)waveformData.filtered.mid);
maxMid[1] = math_max(maxMid[1], (int)waveformDataNext.filtered.mid);
maxHigh[0] = math_max(maxHigh[0], (int)waveformData.filtered.high);
maxHigh[1] = math_max(maxHigh[1], (int)waveformDataNext.filtered.high);
maxAll[0] = math_max(maxAll[0], (int)waveformData.filtered.all);
maxAll[1] = math_max(maxAll[1], (int)waveformDataNext.filtered.all);
}
if (maxAll[0] && maxAll[1]) {
// Calculate sum, to normalize
// Also multiply on 1.2 to prevent very dark or light color
total = (maxLow[0] + maxLow[1] + maxMid[0] + maxMid[1] + maxHigh[0] + maxHigh[1]) * 1.2;
// prevent division by zero
if (total > 0)
{
// Normalize low and high (mid not need, because it not change the color)
lo = (maxLow[0] + maxLow[1]) / total;
hi = (maxHigh[0] + maxHigh[1]) / total;
}
else
lo = hi = 0.0;
// Set color
color.setHsvF(h, 1.0-hi, 1.0-lo);
painter->setPen(color);
switch (m_alignment) {
case Qt::AlignBottom :
painter->drawLine(
x, m_waveformRenderer->getHeight(),
x, m_waveformRenderer->getHeight() - (int)(heightFactor*(float)math_max(maxAll[0],maxAll[1])));
break;
case Qt::AlignTop :
painter->drawLine(
x, 0,
x, (int)(heightFactor*(float)math_max(maxAll[0],maxAll[1])));
break;
default :
painter->drawLine(
x, (int)(halfHeight-heightFactor*(float)maxAll[0]),
x, (int)(halfHeight+heightFactor*(float)maxAll[1]));
}
}
}
painter->restore();
}
void QtWaveformRendererSimpleSignal::draw(QPainter* painter, QPaintEvent* /*event*/){
TrackPointer pTrack = m_waveformRenderer->getTrackInfo();
if (!pTrack) {
return;
}
const Waveform* waveform = pTrack->getWaveform();
if (waveform == NULL) {
return;
}
const int dataSize = waveform->getDataSize();
if (dataSize <= 1) {
return;
}
const WaveformData* data = waveform->data();
if (data == NULL) {
return;
}
painter->save();
painter->setRenderHint(QPainter::Antialiasing);
painter->resetTransform();
WaveformWidgetFactory* factory = WaveformWidgetFactory::instance();
const double visualGain = factory->getVisualGain(WaveformWidgetFactory::All);
double heightGain = visualGain*m_waveformRenderer->getGain()*(double)m_waveformRenderer->getHeight()/255.0;
if (m_alignment == Qt::AlignTop) {
painter->translate(0.0, 0.0);
painter->scale(1.0, heightGain);
} else if (m_alignment == Qt::AlignBottom) {
painter->translate(0.0, m_waveformRenderer->getHeight());
painter->scale(1.0, heightGain);
} else {
painter->translate(0.0, m_waveformRenderer->getHeight()/2.0);
painter->scale(1.0, 0.5*heightGain);
}
//draw reference line
if (m_alignment == Qt::AlignCenter) {
painter->setPen(m_pColors->getAxesColor());
painter->drawLine(0,0,m_waveformRenderer->getWidth(),0);
}
const double firstVisualIndex = m_waveformRenderer->getFirstDisplayedPosition() * dataSize;
const double lastVisualIndex = m_waveformRenderer->getLastDisplayedPosition() * dataSize;
m_polygon.clear();
m_polygon.reserve(2 * m_waveformRenderer->getWidth() + 2);
m_polygon.append(QPointF(0.0, 0.0));
const double offset = firstVisualIndex;
// Represents the # of waveform data points per horizontal pixel.
const double gain = (lastVisualIndex - firstVisualIndex) /
(double)m_waveformRenderer->getWidth();
//NOTE(vrince) Please help me find a better name for "channelSeparation"
//this variable stand for merged channel ... 1 = merged & 2 = separated
int channelSeparation = 2;
if (m_alignment != Qt::AlignCenter)
channelSeparation = 1;
for (int channel = 0; channel < channelSeparation; ++channel) {
int startPixel = 0;
int endPixel = m_waveformRenderer->getWidth() - 1;
int delta = 1;
double direction = 1.0;
//Reverse display for merged bottom channel
if (m_alignment == Qt::AlignBottom)
direction = -1.0;
if (channel == 1) {
startPixel = m_waveformRenderer->getWidth() - 1;
endPixel = 0;
delta = -1;
direction = -1.0;
// After preparing the first channel, insert the pivot point.
m_polygon.append(QPointF(m_waveformRenderer->getWidth(), 0.0));
}
for (int x = startPixel;
(startPixel < endPixel) ? (x <= endPixel) : (x >= endPixel);
x += delta) {
// TODO(rryan) remove before 1.11 release. I'm seeing crashes
// sometimes where the pointIndex is very very large. It hasn't come
// back since adding locking, but I'm leaving this so that we can
// get some info about it before crashing. (The crash usually
// corrupts a lot of the stack).
if (m_polygon.size() > 2 * m_waveformRenderer->getWidth() + 2) {
qDebug() << "OUT OF CONTROL"
<< 2 * m_waveformRenderer->getWidth() + 2
<< dataSize
<< channel << m_polygon.size() << x;
}
// Width of the x position in visual indices.
const double xSampleWidth = gain * x;
// Effective visual index of x
const double xVisualSampleIndex = xSampleWidth + offset;
// Our current pixel (x) corresponds to a number of visual samples
// (visualSamplerPerPixel) in our waveform object. We take the max of
// all the data points on either side of xVisualSampleIndex within a
// window of 'maxSamplingRange' visual samples to measure the maximum
// data point contained by this pixel.
double maxSamplingRange = gain / 2.0;
// Since xVisualSampleIndex is in visual-samples (e.g. R,L,R,L) we want
// to check +/- maxSamplingRange frames, not samples. To do this, divide
// xVisualSampleIndex by 2. Since frames indices are integers, we round
// to the nearest integer by adding 0.5 before casting to int.
int visualFrameStart = int(xVisualSampleIndex / 2.0 - maxSamplingRange + 0.5);
int visualFrameStop = int(xVisualSampleIndex / 2.0 + maxSamplingRange + 0.5);
// If the entire sample range is off the screen then don't calculate a
// point for this pixel.
const int lastVisualFrame = dataSize / 2 - 1;
if (visualFrameStop < 0 || visualFrameStart > lastVisualFrame) {
m_polygon.append(QPointF(x, 0.0));
continue;
}
// We now know that some subset of [visualFrameStart,
// visualFrameStop] lies within the valid range of visual
// frames. Clamp visualFrameStart/Stop to within [0,
// lastVisualFrame].
visualFrameStart = math_max(math_min(lastVisualFrame, visualFrameStart), 0);
visualFrameStop = math_max(math_min(lastVisualFrame, visualFrameStop), 0);
int visualIndexStart = visualFrameStart * 2 + channel;
int visualIndexStop = visualFrameStop * 2 + channel;
// if (x == m_waveformRenderer->getWidth() / 2) {
// qDebug() << "audioVisualRatio" << waveform->getAudioVisualRatio();
// qDebug() << "visualSampleRate" << waveform->getVisualSampleRate();
// qDebug() << "audioSamplesPerVisualPixel" << waveform->getAudioSamplesPerVisualSample();
// qDebug() << "visualSamplePerPixel" << visualSamplePerPixel;
// qDebug() << "xSampleWidth" << xSampleWidth;
// qDebug() << "xVisualSampleIndex" << xVisualSampleIndex;
// qDebug() << "maxSamplingRange" << maxSamplingRange;;
// qDebug() << "Sampling pixel " << x << "over [" << visualIndexStart << visualIndexStop << "]";
// }
unsigned char maxAll = 0;
for (int i = visualIndexStart; i >= 0 && i < dataSize && i <= visualIndexStop;
i += channelSeparation) {
const WaveformData& waveformData = *(data + i);
unsigned char all = waveformData.filtered.all;
maxAll = math_max(maxAll, all);
}
m_polygon.append(QPointF(x, (float)maxAll * direction));
}
}
//If channel are not displayed separatly we nne to close the loop properly
if (channelSeparation == 1) {
m_polygon.append(QPointF(m_waveformRenderer->getWidth(), 0.0));
}
painter->setPen(m_borderPen);
painter->setBrush(m_brush);
painter->drawPolygon(&m_polygon[0], m_polygon.size());
painter->restore();
}
void WaveformRendererFilteredSignal::draw(QPainter* painter,
QPaintEvent* /*event*/) {
const TrackPointer trackInfo = m_waveformRenderer->getTrackInfo();
if (!trackInfo) {
return;
}
const Waveform* waveform = trackInfo->getWaveform();
if (waveform == NULL) {
return;
}
const int dataSize = waveform->getDataSize();
if (dataSize <= 1) {
return;
}
const WaveformData* data = waveform->data();
if (data == NULL) {
return;
}
painter->save();
painter->setRenderHints(QPainter::Antialiasing, false);
painter->setRenderHints(QPainter::HighQualityAntialiasing, false);
painter->setRenderHints(QPainter::SmoothPixmapTransform, false);
painter->setWorldMatrixEnabled(false);
painter->resetTransform();
const double firstVisualIndex = m_waveformRenderer->getFirstDisplayedPosition() * dataSize;
const double lastVisualIndex = m_waveformRenderer->getLastDisplayedPosition() * dataSize;
// Represents the # of waveform data points per horizontal pixel.
const double gain = (lastVisualIndex - firstVisualIndex) /
(double)m_waveformRenderer->getWidth();
// Per-band gain from the EQ knobs.
float lowGain(1.0), midGain(1.0), highGain(1.0), allGain(1.0);
if (m_pLowFilterControlObject &&
m_pMidFilterControlObject &&
m_pHighFilterControlObject) {
lowGain = m_pLowFilterControlObject->get();
midGain = m_pMidFilterControlObject->get();
highGain = m_pHighFilterControlObject->get();
}
allGain = m_waveformRenderer->getGain();
WaveformWidgetFactory* factory = WaveformWidgetFactory::instance();
allGain *= factory->getVisualGain(::WaveformWidgetFactory::All);
lowGain *= factory->getVisualGain(WaveformWidgetFactory::Low);
midGain *= factory->getVisualGain(WaveformWidgetFactory::Mid);
highGain *= factory->getVisualGain(WaveformWidgetFactory::High);
const float halfHeight = (float)m_waveformRenderer->getHeight()/2.0;
const float heightFactor = m_alignment == Qt::AlignCenter
? allGain*halfHeight/255.0
: allGain*m_waveformRenderer->getHeight()/255.0;
//draw reference line
if (m_alignment == Qt::AlignCenter) {
painter->setPen(m_axesColor);
painter->drawLine(0,halfHeight,m_waveformRenderer->getWidth(),halfHeight);
}
int actualLowLineNumber = 0;
int actualMidLineNumber = 0;
int actualHighLineNumber = 0;
for (int x = 0; x < m_waveformRenderer->getWidth(); ++x) {
// Width of the x position in visual indices.
const double xSampleWidth = gain * x;
// Effective visual index of x
const double xVisualSampleIndex = xSampleWidth + firstVisualIndex;
// Our current pixel (x) corresponds to a number of visual samples
// (visualSamplerPerPixel) in our waveform object. We take the max of
// all the data points on either side of xVisualSampleIndex within a
// window of 'maxSamplingRange' visual samples to measure the maximum
// data point contained by this pixel.
double maxSamplingRange = gain / 2.0;
// Since xVisualSampleIndex is in visual-samples (e.g. R,L,R,L) we want
// to check +/- maxSamplingRange frames, not samples. To do this, divide
// xVisualSampleIndex by 2. Since frames indices are integers, we round
// to the nearest integer by adding 0.5 before casting to int.
int visualFrameStart = int(xVisualSampleIndex / 2.0 - maxSamplingRange + 0.5);
int visualFrameStop = int(xVisualSampleIndex / 2.0 + maxSamplingRange + 0.5);
// If the entire sample range is off the screen then don't calculate a
// point for this pixel.
const int lastVisualFrame = dataSize / 2 - 1;
if (visualFrameStop < 0 || visualFrameStart > lastVisualFrame) {
continue;
}
// We now know that some subset of [visualFrameStart, visualFrameStop]
// lies within the valid range of visual frames. Clamp
// visualFrameStart/Stop to within [0, lastVisualFrame].
visualFrameStart = math_max(math_min(lastVisualFrame, visualFrameStart), 0);
visualFrameStop = math_max(math_min(lastVisualFrame, visualFrameStop), 0);
int visualIndexStart = visualFrameStart * 2;
int visualIndexStop = visualFrameStop * 2;
// if (x == m_waveformRenderer->getWidth() / 2) {
// qDebug() << "audioVisualRatio" << waveform->getAudioVisualRatio();
// qDebug() << "visualSampleRate" << waveform->getVisualSampleRate();
// qDebug() << "audioSamplesPerVisualPixel" << waveform->getAudioSamplesPerVisualSample();
// qDebug() << "visualSamplePerPixel" << visualSamplePerPixel;
// qDebug() << "xSampleWidth" << xSampleWidth;
// qDebug() << "xVisualSampleIndex" << xVisualSampleIndex;
// qDebug() << "maxSamplingRange" << maxSamplingRange;;
// qDebug() << "Sampling pixel " << x << "over [" << visualIndexStart << visualIndexStop << "]";
// }
unsigned char maxLow[2] = {0, 0};
unsigned char maxMid[2] = {0, 0};
unsigned char maxHigh[2] = {0, 0};
for (int i = visualIndexStart;
i >= 0 && i + 1 < dataSize && i + 1 <= visualIndexStop; i += 2) {
const WaveformData& waveformData = *(data + i);
const WaveformData& waveformDataNext = *(data + i + 1);
maxLow[0] = math_max(maxLow[0], waveformData.filtered.low);
maxLow[1] = math_max(maxLow[1], waveformDataNext.filtered.low);
maxMid[0] = math_max(maxMid[0], waveformData.filtered.mid);
maxMid[1] = math_max(maxMid[1], waveformDataNext.filtered.mid);
maxHigh[0] = math_max(maxHigh[0], waveformData.filtered.high);
maxHigh[1] = math_max(maxHigh[1], waveformDataNext.filtered.high);
}
if (maxLow[0] && maxLow[1]) {
switch (m_alignment) {
case Qt::AlignBottom :
m_lowLines[actualLowLineNumber].setLine(
x, m_waveformRenderer->getHeight(),
x, m_waveformRenderer->getHeight() - (int)(heightFactor*lowGain*(float)math_max(maxLow[0],maxLow[1])));
break;
case Qt::AlignTop :
m_lowLines[actualLowLineNumber].setLine(
x, 0,
x, (int)(heightFactor*lowGain*(float)math_max(maxLow[0],maxLow[1])));
break;
default :
m_lowLines[actualLowLineNumber].setLine(
x, (int)(halfHeight-heightFactor*(float)maxLow[0]*lowGain),
x, (int)(halfHeight+heightFactor*(float)maxLow[1]*lowGain));
break;
}
actualLowLineNumber++;
}
if (maxMid[0] && maxMid[1]) {
switch (m_alignment) {
case Qt::AlignBottom :
m_midLines[actualMidLineNumber].setLine(
x, m_waveformRenderer->getHeight(),
x, m_waveformRenderer->getHeight() - (int)(heightFactor*midGain*(float)math_max(maxMid[0],maxMid[1])));
break;
case Qt::AlignTop :
m_midLines[actualMidLineNumber].setLine(
x, 0,
x, (int)(heightFactor*midGain*(float)math_max(maxMid[0],maxMid[1])));
break;
default :
m_midLines[actualMidLineNumber].setLine(
x, (int)(halfHeight-heightFactor*(float)maxMid[0]*midGain),
x, (int)(halfHeight+heightFactor*(float)maxMid[1]*midGain));
break;
}
actualMidLineNumber++;
}
if (maxHigh[0] && maxHigh[1]) {
switch (m_alignment) {
case Qt::AlignBottom :
m_highLines[actualHighLineNumber].setLine(
x, m_waveformRenderer->getHeight(),
x, m_waveformRenderer->getHeight() - (int)(heightFactor*highGain*(float)math_max(maxHigh[0],maxHigh[1])));
break;
case Qt::AlignTop :
m_highLines[actualHighLineNumber].setLine(
x, 0,
x, (int)(heightFactor*highGain*(float)math_max(maxHigh[0],maxHigh[1])));
break;
default :
m_highLines[actualHighLineNumber].setLine(
x, (int)(halfHeight-heightFactor*(float)maxHigh[0]*highGain),
x, (int)(halfHeight+heightFactor*(float)maxHigh[1]*highGain));
break;
}
actualHighLineNumber++;
}
}
painter->setPen(QPen(QBrush(m_pColors->getLowColor()), 1));
if (m_pLowKillControlObject && m_pLowKillControlObject->get() == 0.0) {
painter->drawLines(&m_lowLines[0], actualLowLineNumber);
}
painter->setPen(QPen(QBrush(m_pColors->getMidColor()), 1));
if (m_pMidKillControlObject && m_pMidKillControlObject->get() == 0.0) {
painter->drawLines(&m_midLines[0], actualMidLineNumber);
}
painter->setPen(QPen(QBrush(m_pColors->getHighColor()), 1));
if (m_pHighKillControlObject && m_pHighKillControlObject->get() == 0.0) {
painter->drawLines(&m_highLines[0], actualHighLineNumber);
}
painter->restore();
}
void GLWaveformRendererRGB::draw(QPainter* painter, QPaintEvent* /*event*/) {
TrackPointer pTrack = m_waveformRenderer->getTrackInfo();
if (!pTrack) {
return;
}
const Waveform* waveform = pTrack->getWaveform();
if (waveform == NULL) {
return;
}
const int dataSize = waveform->getDataSize();
if (dataSize <= 1) {
return;
}
const WaveformData* data = waveform->data();
if (data == NULL) {
return;
}
double firstVisualIndex = m_waveformRenderer->getFirstDisplayedPosition() * dataSize;
double lastVisualIndex = m_waveformRenderer->getLastDisplayedPosition() * dataSize;
const int firstIndex = int(firstVisualIndex + 0.5);
firstVisualIndex = firstIndex - firstIndex % 2;
const int lastIndex = int(lastVisualIndex + 0.5);
lastVisualIndex = lastIndex + lastIndex % 2;
// Reset device for native painting
painter->beginNativePainting();
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Per-band gain from the EQ knobs.
float lowGain(1.0), midGain(1.0), highGain(1.0);
if (m_pLowFilterControlObject && m_pMidFilterControlObject && m_pHighFilterControlObject) {
lowGain = m_pLowFilterControlObject->get();
midGain = m_pMidFilterControlObject->get();
highGain = m_pHighFilterControlObject->get();
}
WaveformWidgetFactory* factory = WaveformWidgetFactory::instance();
const double visualGain = factory->getVisualGain(::WaveformWidgetFactory::All);
lowGain *= factory->getVisualGain(WaveformWidgetFactory::Low);
midGain *= factory->getVisualGain(WaveformWidgetFactory::Mid);
highGain *= factory->getVisualGain(WaveformWidgetFactory::High);
if (m_alignment == Qt::AlignCenter) {
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(firstVisualIndex, lastVisualIndex, -255.0, 255.0, -10.0, 10.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glScalef(1.0f, visualGain * m_waveformRenderer->getGain(), 1.0f);
glLineWidth(1.2);
glDisable(GL_LINE_SMOOTH);
// Draw reference line
glBegin(GL_LINES); {
glColor4f(m_axesColor_r, m_axesColor_g, m_axesColor_b, m_axesColor_a);
glVertex2f(firstVisualIndex, 0);
glVertex2f(lastVisualIndex, 0);
}
glEnd();
glLineWidth(1.2);
glEnable(GL_LINE_SMOOTH);
glBegin(GL_LINES); {
for( int visualIndex = firstVisualIndex;
visualIndex < lastVisualIndex;
visualIndex += 2) {
if( visualIndex < 0)
continue;
if( visualIndex > dataSize - 1)
break;
float left_low = lowGain * (float) data[visualIndex].filtered.low;
float left_mid = midGain * (float) data[visualIndex].filtered.mid;
float left_high = highGain * (float) data[visualIndex].filtered.high;
float left_all = sqrtf(left_low * left_low + left_mid * left_mid + left_high * left_high);
float left_red = left_low * m_lowColor.red() + left_mid * m_midColor.red() + left_high * m_highColor.red();
float left_green = left_low * m_lowColor.green() + left_mid * m_midColor.green() + left_high * m_highColor.green();
float left_blue = left_low * m_lowColor.blue() + left_mid * m_midColor.blue() + left_high * m_highColor.blue();
float left_max = MAX3(left_red, left_green, left_blue);
if (left_max > 0.0f) { // Prevent division by zero
glColor4f(left_red / left_max, left_green / left_max, left_blue / left_max, 0.8f);
glVertex2f(visualIndex, 0.0f);
glVertex2f(visualIndex, left_all);
}
float right_low = lowGain * (float) data[visualIndex+1].filtered.low;
float right_mid = midGain * (float) data[visualIndex+1].filtered.mid;
float right_high = highGain * (float) data[visualIndex+1].filtered.high;
float right_all = sqrtf(right_low * right_low + right_mid * right_mid + right_high * right_high);
float right_red = right_low * m_lowColor.red() + right_mid * m_midColor.red() + right_high * m_highColor.red();
float right_green = right_low * m_lowColor.green() + right_mid * m_midColor.green() + right_high * m_highColor.green();
float right_blue = right_low * m_lowColor.blue() + right_mid * m_midColor.blue() + right_high * m_highColor.blue();
float right_max = MAX3(right_red, right_green, right_blue);
if (right_max > 0.0f) { // Prevent division by zero
glColor4f(right_red / right_max, right_green / right_max, right_blue / right_max, 0.8f);
glVertex2f(visualIndex, 0.0f);
glVertex2f(visualIndex, -1.0f * right_all);
}
}
}
glEnd();
} else { // top || bottom
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
if( m_alignment == Qt::AlignBottom)
glOrtho(firstVisualIndex, lastVisualIndex, 0.0, 255.0, -10.0, 10.0);
else
glOrtho(firstVisualIndex, lastVisualIndex, 255.0, 0.0, -10.0, 10.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glScalef(1.0f, visualGain * m_waveformRenderer->getGain(), 1.0f);
glLineWidth(1.2);
glEnable(GL_LINE_SMOOTH);
glBegin(GL_LINES); {
for( int visualIndex = firstVisualIndex;
visualIndex < lastVisualIndex;
visualIndex += 2) {
if( visualIndex < 0)
continue;
if( visualIndex > dataSize - 1)
break;
float low = lowGain * (float) math_max(data[visualIndex].filtered.low, data[visualIndex+1].filtered.low);
float mid = midGain * (float) math_max(data[visualIndex].filtered.mid, data[visualIndex+1].filtered.mid);
float high = highGain * (float) math_max(data[visualIndex].filtered.high, data[visualIndex+1].filtered.high);
float all = sqrtf(low * low + mid * mid + high * high);
float red = low * m_lowColor.red() + mid * m_midColor.red() + high * m_highColor.red();
float green = low * m_lowColor.green() + mid * m_midColor.green() + high * m_highColor.green();
float blue = low * m_lowColor.blue() + mid * m_midColor.blue() + high * m_highColor.blue();
float max = MAX3(red, green, blue);
if (max > 0.0f) { // Prevent division by zero
glColor4f(red / max, green / max, blue / max, 0.9f);
glVertex2f(float(visualIndex), 0.0f);
glVertex2f(float(visualIndex), all);
}
}
}
glEnd();
}
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
painter->endNativePainting();
}