bool WOverviewRGB::drawNextPixmapPart() {
ScopedTimer t("WOverviewRGB::drawNextPixmapPart");
//qDebug() << "WOverview::drawNextPixmapPart() - m_waveform" << m_waveform;
int currentCompletion;
ConstWaveformPointer pWaveform = getWaveform();
if (!pWaveform) {
return false;
}
const int dataSize = pWaveform->getDataSize();
if (dataSize == 0) {
return false;
}
if (!m_pWaveformSourceImage) {
// Waveform pixmap twice the height of the viewport to be scalable
// by total_gain
// We keep full range waveform data to scale it on paint
m_pWaveformSourceImage = new QImage(dataSize / 2, 2 * 255,
QImage::Format_ARGB32_Premultiplied);
m_pWaveformSourceImage->fill(QColor(0,0,0,0).value());
}
// Always multiple of 2
const int waveformCompletion = pWaveform->getCompletion();
// Test if there is some new to draw (at least of pixel width)
const int completionIncrement = waveformCompletion - m_actualCompletion;
int visiblePixelIncrement = completionIncrement * width() / dataSize;
if (completionIncrement < 2 || visiblePixelIncrement == 0) {
return false;
}
const int nextCompletion = m_actualCompletion + completionIncrement;
//qDebug() << "WOverview::drawNextPixmapPart() - nextCompletion:"
// << nextCompletion
// << "m_actualCompletion:" << m_actualCompletion
// << "waveformCompletion:" << waveformCompletion
// << "completionIncrement:" << completionIncrement;
QPainter painter(m_pWaveformSourceImage);
painter.translate(0.0,static_cast<double>(m_pWaveformSourceImage->height())/2.0);
QColor color;
qreal lowColor_r, lowColor_g, lowColor_b;
m_signalColors.getRgbLowColor().getRgbF(&lowColor_r, &lowColor_g, &lowColor_b);
qreal midColor_r, midColor_g, midColor_b;
m_signalColors.getRgbMidColor().getRgbF(&midColor_r, &midColor_g, &midColor_b);
qreal highColor_r, highColor_g, highColor_b;
m_signalColors.getRgbHighColor().getRgbF(&highColor_r, &highColor_g, &highColor_b);
for (currentCompletion = m_actualCompletion;
currentCompletion < nextCompletion; currentCompletion += 2) {
unsigned char left = pWaveform->getAll(currentCompletion);
unsigned char right = pWaveform->getAll(currentCompletion + 1);
// Retrieve "raw" LMH values from waveform
qreal low = static_cast<qreal>(pWaveform->getLow(currentCompletion));
qreal mid = static_cast<qreal>(pWaveform->getMid(currentCompletion));
qreal high = static_cast<qreal>(pWaveform->getHigh(currentCompletion));
// Do matrix multiplication
qreal red = low * lowColor_r + mid * midColor_r + high * highColor_r;
qreal green = low * lowColor_g + mid * midColor_g + high * highColor_g;
qreal blue = low * lowColor_b + mid * midColor_b + high * highColor_b;
// Normalize and draw
qreal max = math_max3(red, green, blue);
if (max > 0.0) {
color.setRgbF(red / max, green / max, blue / max);
painter.setPen(color);
painter.drawLine(currentCompletion / 2, -left, currentCompletion / 2, 0);
}
// Retrieve "raw" LMH values from waveform
low = static_cast<qreal>(pWaveform->getLow(currentCompletion + 1));
mid = static_cast<qreal>(pWaveform->getMid(currentCompletion + 1));
high = static_cast<qreal>(pWaveform->getHigh(currentCompletion + 1));
// Do matrix multiplication
red = low * lowColor_r + mid * midColor_r + high * highColor_r;
green = low * lowColor_g + mid * midColor_g + high * highColor_g;
blue = low * lowColor_b + mid * midColor_b + high * highColor_b;
// Normalize and draw
max = math_max3(red, green, blue);
if (max > 0.0) {
color.setRgbF(red / max, green / max, blue / max);
painter.setPen(color);
painter.drawLine(currentCompletion / 2, 0, currentCompletion / 2, right);
}
}
// Evaluate waveform ratio peak
for (currentCompletion = m_actualCompletion;
currentCompletion < nextCompletion; currentCompletion += 2) {
m_waveformPeak = math_max3(
m_waveformPeak,
static_cast<float>(pWaveform->getAll(currentCompletion)),
static_cast<float>(pWaveform->getAll(currentCompletion + 1)));
}
m_actualCompletion = nextCompletion;
m_waveformImageScaled = QImage();
m_diffGain = 0;
// Test if the complete waveform is done
if (m_actualCompletion >= dataSize - 2) {
m_pixmapDone = true;
//qDebug() << "m_waveformPeakRatio" << m_waveformPeak;
}
return true;
}
bool WOverviewHSV::drawNextPixmapPart() {
ScopedTimer t("WOverviewHSV::drawNextPixmapPart");
//qDebug() << "WOverview::drawNextPixmapPart() - m_waveform" << m_waveform;
int currentCompletion;
ConstWaveformPointer pWaveform = getWaveform();
if (!pWaveform) {
return false;
}
const int dataSize = pWaveform->getDataSize();
if (dataSize == 0) {
return false;
}
if (!m_pWaveformSourceImage) {
// Waveform pixmap twice the height of the viewport to be scalable
// by total_gain
// We keep full range waveform data to scale it on paint
m_pWaveformSourceImage = new QImage(dataSize / 2, 2 * 255,
QImage::Format_ARGB32_Premultiplied);
m_pWaveformSourceImage->fill(QColor(0,0,0,0).value());
}
// Always multiple of 2
const int waveformCompletion = pWaveform->getCompletion();
// Test if there is some new to draw (at least of pixel width)
const int completionIncrement = waveformCompletion - m_actualCompletion;
int visiblePixelIncrement = completionIncrement * width() / dataSize;
if (completionIncrement < 2 || visiblePixelIncrement == 0) {
return false;
}
const int nextCompletion = m_actualCompletion + completionIncrement;
//qDebug() << "WOverview::drawNextPixmapPart() - nextCompletion:"
// << nextCompletion
// << "m_actualCompletion:" << m_actualCompletion
// << "waveformCompletion:" << waveformCompletion
// << "completionIncrement:" << completionIncrement;
QPainter painter(m_pWaveformSourceImage);
painter.translate(0.0,static_cast<double>(m_pWaveformSourceImage->height())/2.0);
// Get HSV of low 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;
m_signalColors.getLowColor().getHsvF(&h, &s, &v);
QColor color;
float lo, hi, total;
unsigned char maxLow[2] = {0, 0};
unsigned char maxHigh[2] = {0, 0};
unsigned char maxMid[2] = {0, 0};
unsigned char maxAll[2] = {0, 0};
for (currentCompletion = m_actualCompletion;
currentCompletion < nextCompletion; currentCompletion += 2) {
maxAll[0] = pWaveform->getAll(currentCompletion);
maxAll[1] = pWaveform->getAll(currentCompletion+1);
if (maxAll[0] || maxAll[1]) {
maxLow[0] = pWaveform->getLow(currentCompletion);
maxLow[1] = pWaveform->getLow(currentCompletion+1);
maxMid[0] = pWaveform->getMid(currentCompletion);
maxMid[1] = pWaveform->getMid(currentCompletion+1);
maxHigh[0] = pWaveform->getHigh(currentCompletion);
maxHigh[1] = pWaveform->getHigh(currentCompletion+1);
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);
painter.drawLine(QPoint(currentCompletion / 2, -maxAll[0]),
QPoint(currentCompletion / 2, maxAll[1]));
}
}
// Evaluate waveform ratio peak
for (currentCompletion = m_actualCompletion;
currentCompletion < nextCompletion; currentCompletion += 2) {
m_waveformPeak = math_max3(
m_waveformPeak,
static_cast<float>(pWaveform->getAll(currentCompletion)),
static_cast<float>(pWaveform->getAll(currentCompletion + 1)));
}
m_actualCompletion = nextCompletion;
m_waveformImageScaled = QImage();
m_diffGain = 0;
// Test if the complete waveform is done
if (m_actualCompletion >= dataSize - 2) {
m_pixmapDone = true;
//qDebug() << "m_waveformPeakRatio" << m_waveformPeak;
}
return true;
}