}
const int stepsize = 4*skipPixels;
- // Prepare the vectorscope data
- QImage scope(cw, cw, QImage::Format_ARGB32);
- scope.fill(qRgba(0,0,0,0));
-
- QImage img(m_activeRender->extractFrame(m_activeRender->seekFramePosition()));
- const uchar *bits = img.bits();
-
- int r,g,b;
- double dy, dr, dg, db, dmax;
- double y,u,v;
- QPoint pt;
- QRgb px;
-
- // Just an average for the number of image pixels per scope pixel.
- // NOTE: byteCount() has to be replaced by (img.bytesPerLine()*img.height()) for Qt 4.5 to compile, see: http://doc.trolltech.org/4.6/qimage.html#bytesPerLine
- double avgPxPerPx = (double) 4*(img.bytesPerLine()*img.height())/scope.size().width()/scope.size().height()/skipPixels;
- qDebug() << "Expecting " << avgPxPerPx << " pixels per pixel.";
-
- const QRect scopeRect(QPoint(0,0), scope.size());
-
- for (int i = 0; i < (img.bytesPerLine()*img.height()); i+= stepsize) {
- QRgb *col = (QRgb *) bits;
-
- r = qRed(*col);
- g = qGreen(*col);
- b = qBlue(*col);
-
- y = (double) 0.001173 * r +0.002302 * g +0.0004471* b;
- u = (double) -0.0005781* r -0.001135 * g +0.001713 * b;
- v = (double) 0.002411 * r -0.002019 * g -0.0003921* b;
-
- pt = mapToCanvas(scopeRect, QPointF(SCALING*m_scaling*u, SCALING*m_scaling*v));
-
- if (!(pt.x() <= scopeRect.width() && pt.x() >= 0
- && pt.y() <= scopeRect.height() && pt.y() >= 0)) {
- // Point lies outside (because of scaling), don't plot it
-
- } else {
+ if (cw <= 0) {
+ qDebug() << "Scope size not known yet. Aborting.";
+ } else {
- // Draw the pixel using the chosen draw mode.
- switch (paintMode->itemData(paintMode->currentIndex()).toInt()) {
- case PAINT_YUV:
- // see yuvColorWheel
- dy = 128; // Default Y value. Lower = darker.
-
- // Calculate the RGB values from YUV
- dr = dy + 290.8*v;
- dg = dy - 100.6*u - 148*v;
- db = dy + 517.2*u;
-
- if (dr < 0) dr = 0;
- if (dg < 0) dg = 0;
- if (db < 0) db = 0;
- if (dr > 255) dr = 255;
- if (dg > 255) dg = 255;
- if (db > 255) db = 255;
-
- scope.setPixel(pt, qRgba(dr, dg, db, 255));
- break;
-
- case PAINT_CHROMA:
- dy = 200; // Default Y value. Lower = darker.
-
- // Calculate the RGB values from YUV
- dr = dy + 290.8*v;
- dg = dy - 100.6*u - 148*v;
- db = dy + 517.2*u;
-
- // Scale the RGB values back to max 255
- dmax = dr;
- if (dg > dmax) dmax = dg;
- if (db > dmax) dmax = db;
- dmax = 255/dmax;
-
- dr *= dmax;
- dg *= dmax;
- db *= dmax;
-
- scope.setPixel(pt, qRgba(dr, dg, db, 255));
- break;
- case PAINT_ORIG:
- scope.setPixel(pt, *col);
- break;
- case PAINT_GREEN:
- px = scope.pixel(pt);
- scope.setPixel(pt, qRgba(qRed(px)+(255-qRed(px))/(3*avgPxPerPx), qGreen(px)+20*(255-qGreen(px))/(avgPxPerPx),
- qBlue(px)+(255-qBlue(px))/(avgPxPerPx), qAlpha(px)+(255-qAlpha(px))/(avgPxPerPx)));
- break;
- case PAINT_GREEN2:
- px = scope.pixel(pt);
- scope.setPixel(pt, qRgba(qRed(px)+ceil((255-(float)qRed(px))/(4*avgPxPerPx)), 255,
- qBlue(px)+ceil((255-(float)qBlue(px))/(avgPxPerPx)), qAlpha(px)+ceil((255-(float)qAlpha(px))/(avgPxPerPx))));
- break;
- case PAINT_BLACK:
- px = scope.pixel(pt);
- scope.setPixel(pt, qRgba(0,0,0, qAlpha(px)+(255-qAlpha(px))/20));
- break;
+ // Prepare the vectorscope data
+ QImage scope(cw, cw, QImage::Format_ARGB32);
+ scope.fill(qRgba(0,0,0,0));
+
+ QImage img(m_activeRender->extractFrame(m_activeRender->seekFramePosition()));
+ const uchar *bits = img.bits();
+
+ int r,g,b;
+ double dy, dr, dg, db, dmax;
+ double y,u,v;
+ QPoint pt;
+ QRgb px;
+
+ // Just an average for the number of image pixels per scope pixel.
+ // NOTE: byteCount() has to be replaced by (img.bytesPerLine()*img.height()) for Qt 4.5 to compile, see: http://doc.trolltech.org/4.6/qimage.html#bytesPerLine
+ double avgPxPerPx = (double) 4*(img.bytesPerLine()*img.height())/scope.size().width()/scope.size().height()/skipPixels;
+ qDebug() << "Expecting " << avgPxPerPx << " pixels per pixel.";
+
+ const QRect scopeRect(QPoint(0,0), scope.size());
+
+ for (int i = 0; i < (img.bytesPerLine()*img.height()); i+= stepsize) {
+ QRgb *col = (QRgb *) bits;
+
+ r = qRed(*col);
+ g = qGreen(*col);
+ b = qBlue(*col);
+
+ y = (double) 0.001173 * r +0.002302 * g +0.0004471* b;
+ u = (double) -0.0005781* r -0.001135 * g +0.001713 * b;
+ v = (double) 0.002411 * r -0.002019 * g -0.0003921* b;
+
+ pt = mapToCanvas(scopeRect, QPointF(SCALING*m_scaling*u, SCALING*m_scaling*v));
+
+ if (!(pt.x() <= scopeRect.width() && pt.x() >= 0
+ && pt.y() <= scopeRect.height() && pt.y() >= 0)) {
+ // Point lies outside (because of scaling), don't plot it
+
+ } else {
+
+ // Draw the pixel using the chosen draw mode.
+ switch (paintMode->itemData(paintMode->currentIndex()).toInt()) {
+ case PAINT_YUV:
+ // see yuvColorWheel
+ dy = 128; // Default Y value. Lower = darker.
+
+ // Calculate the RGB values from YUV
+ dr = dy + 290.8*v;
+ dg = dy - 100.6*u - 148*v;
+ db = dy + 517.2*u;
+
+ if (dr < 0) dr = 0;
+ if (dg < 0) dg = 0;
+ if (db < 0) db = 0;
+ if (dr > 255) dr = 255;
+ if (dg > 255) dg = 255;
+ if (db > 255) db = 255;
+
+ scope.setPixel(pt, qRgba(dr, dg, db, 255));
+ break;
+
+ case PAINT_CHROMA:
+ dy = 200; // Default Y value. Lower = darker.
+
+ // Calculate the RGB values from YUV
+ dr = dy + 290.8*v;
+ dg = dy - 100.6*u - 148*v;
+ db = dy + 517.2*u;
+
+ // Scale the RGB values back to max 255
+ dmax = dr;
+ if (dg > dmax) dmax = dg;
+ if (db > dmax) dmax = db;
+ dmax = 255/dmax;
+
+ dr *= dmax;
+ dg *= dmax;
+ db *= dmax;
+
+ scope.setPixel(pt, qRgba(dr, dg, db, 255));
+ break;
+ case PAINT_ORIG:
+ scope.setPixel(pt, *col);
+ break;
+ case PAINT_GREEN:
+ px = scope.pixel(pt);
+ scope.setPixel(pt, qRgba(qRed(px)+(255-qRed(px))/(3*avgPxPerPx), qGreen(px)+20*(255-qGreen(px))/(avgPxPerPx),
+ qBlue(px)+(255-qBlue(px))/(avgPxPerPx), qAlpha(px)+(255-qAlpha(px))/(avgPxPerPx)));
+ break;
+ case PAINT_GREEN2:
+ px = scope.pixel(pt);
+ scope.setPixel(pt, qRgba(qRed(px)+ceil((255-(float)qRed(px))/(4*avgPxPerPx)), 255,
+ qBlue(px)+ceil((255-(float)qBlue(px))/(avgPxPerPx)), qAlpha(px)+ceil((255-(float)qAlpha(px))/(avgPxPerPx))));
+ break;
+ case PAINT_BLACK:
+ px = scope.pixel(pt);
+ scope.setPixel(pt, qRgba(0,0,0, qAlpha(px)+(255-qAlpha(px))/20));
+ break;
+ }
}
+
+ bits += stepsize;
}
- bits += stepsize;
+ m_scope = scope;
}
- m_scope = scope;
-
unsigned int mseconds = start.msecsTo(QTime::currentTime());
qDebug() << "Scope rendered in " << mseconds << " ms. Sending finished signal.";
emit signalScopeCalculationFinished(mseconds, skipPixels);
projects / kdenlive / commitdiff