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;
}
void GLSLWaveformRendererSignal::draw(QPainter* painter, QPaintEvent* /*event*/) {
if (!m_frameBuffersValid || !m_shadersValid) {
return;
}
TrackPointer trackInfo = m_waveformRenderer->getTrackInfo();
if (!trackInfo) {
return;
}
ConstWaveformPointer waveform = trackInfo->getWaveform();
if (waveform.isNull()) {
return;
}
int dataSize = waveform->getDataSize();
if (dataSize <= 1) {
return;
}
const WaveformData* data = waveform->data();
if (data == NULL) {
return;
}
// save the GL state set for QPainter
painter->beginNativePainting();
//NOTE: (vRince) completion can change during loadTexture
//do not remove currenCompletion temp variable !
const int currentCompletion = waveform->getCompletion();
if (m_loadedWaveform < currentCompletion) {
loadTexture();
m_loadedWaveform = currentCompletion;
}
// Per-band gain from the EQ knobs.
float lowGain(1.0), midGain(1.0), highGain(1.0), allGain(1.0);
getGains(&allGain, &lowGain, &midGain, &highGain);
double firstVisualIndex = m_waveformRenderer->getFirstDisplayedPosition() * dataSize/2.0;
double lastVisualIndex = m_waveformRenderer->getLastDisplayedPosition() * dataSize/2.0;
// const int firstIndex = int(firstVisualIndex+0.5);
// firstVisualIndex = firstIndex - firstIndex%2;
// const int lastIndex = int(lastVisualIndex+0.5);
// lastVisualIndex = lastIndex + lastIndex%2;
//qDebug() << "GAIN" << allGain << lowGain << midGain << highGain;
//paint into frame buffer
{
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(firstVisualIndex, lastVisualIndex, -1.0, 1.0, -10.0, 10.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(.0f,.0f,.0f);
m_frameShaderProgram->bind();
glViewport(0, 0, m_framebuffer->width(), m_framebuffer->height());
m_frameShaderProgram->setUniformValue("framebufferSize", QVector2D(
m_framebuffer->width(), m_framebuffer->height()));
m_frameShaderProgram->setUniformValue("waveformLength", dataSize);
m_frameShaderProgram->setUniformValue("textureSize", waveform->getTextureSize());
m_frameShaderProgram->setUniformValue("textureStride", waveform->getTextureStride());
m_frameShaderProgram->setUniformValue("firstVisualIndex", (float)firstVisualIndex);
m_frameShaderProgram->setUniformValue("lastVisualIndex", (float)lastVisualIndex);
m_frameShaderProgram->setUniformValue("allGain", allGain);
m_frameShaderProgram->setUniformValue("lowGain", lowGain);
m_frameShaderProgram->setUniformValue("midGain", midGain);
m_frameShaderProgram->setUniformValue("highGain", highGain);
m_frameShaderProgram->setUniformValue("axesColor", QVector4D(m_axesColor_r, m_axesColor_g,
m_axesColor_b, m_axesColor_a));
QVector4D lowColor = m_rgbShader ?
QVector4D(m_rgbLowColor_r, m_rgbLowColor_g, m_rgbLowColor_b, 1.0) :
QVector4D(m_lowColor_r, m_lowColor_g, m_lowColor_b, 1.0);
QVector4D midColor = m_rgbShader ?
QVector4D(m_rgbMidColor_r, m_rgbMidColor_g, m_rgbMidColor_b, 1.0) :
QVector4D(m_midColor_r, m_midColor_g, m_midColor_b, 1.0);
QVector4D highColor = m_rgbShader ?
QVector4D(m_rgbHighColor_r, m_rgbHighColor_g, m_rgbHighColor_b, 1.0) :
QVector4D(m_highColor_r, m_highColor_g, m_highColor_b, 1.0);
m_frameShaderProgram->setUniformValue("lowColor", lowColor);
m_frameShaderProgram->setUniformValue("midColor", midColor);
m_frameShaderProgram->setUniformValue("highColor", highColor);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, m_textureId);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
m_framebuffer->bind();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//glCallList(m_unitQuadListId);
glBegin(GL_QUADS);
{
glTexCoord2f(0.0,0.0);
glVertex3f(firstVisualIndex, -1.0f, 0.0f);
glTexCoord2f(1.0, 0.0);
glVertex3f(lastVisualIndex, -1.0f, 0.0f);
glTexCoord2f(1.0,1.0);
glVertex3f(lastVisualIndex, 1.0f, 0.0f);
glTexCoord2f(0.0,1.0);
glVertex3f(firstVisualIndex, 1.0f, 0.0f);
}
glEnd();
m_framebuffer->release();
m_frameShaderProgram->release();
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
if (m_bDumpPng) {
m_framebuffer->toImage().save("m_framebuffer.png");
m_bDumpPng = false;
}
}
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(-1.0, 1.0, -1.0, 1.0, -10.0, 10.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(0.0, 0.0, 0.0);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_TEXTURE_2D);
//paint buffer into viewport
{
glViewport(0, 0, m_waveformRenderer->getWidth(), m_waveformRenderer->getHeight());
glBindTexture(GL_TEXTURE_2D, m_framebuffer->texture());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glBegin(GL_QUADS);
{
glTexCoord2f(0.0, 0.0);
glVertex3f(-1.0f, -1.0f, 0.0f);
glTexCoord2f(1.0, 0.0);
glVertex3f(1.0f, -1.0f, 0.0f);
glTexCoord2f(1.0, 1.0);
glVertex3f(1.0f, 1.0f, 0.0f);
glTexCoord2f(0.0, 1.0);
glVertex3f(-1.0f, 1.0f, 0.0f);
}
glEnd();
}
glDisable(GL_TEXTURE_2D);
glDisable(GL_ALPHA_TEST);
//DEBUG
/*
glBegin(GL_LINE_LOOP);
{
glColor4f(0.5,1.0,0.5,0.75);
glVertex3f(-1.0f,-1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
glVertex3f(1.0f,-1.0f, 0.0f);
glVertex3f(-1.0f, 1.0f, 0.0f);
}
glEnd();
*/
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
painter->endNativePainting();
}
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;
}
