void KisUnsharpFilter::processRaw(KisPaintDeviceSP device,
const QRect &rect,
quint8 threshold,
qreal weights[2],
qreal factor,
const QBitArray &channelFlags) const
{
const KoColorSpace *cs = device->colorSpace();
const int pixelSize = cs->pixelSize();
KoConvolutionOp * convolutionOp = cs->convolutionOp();
KisHLineIteratorSP dstIt = device->createHLineIteratorNG(rect.x(), rect.y(), rect.width());
quint8 *colors[2];
colors[0] = new quint8[pixelSize];
colors[1] = new quint8[pixelSize];
for (int j = 0; j < rect.height(); j++) {
do {
quint8 diff = cs->difference(dstIt->oldRawData(), dstIt->rawDataConst());
if (diff > threshold) {
memcpy(colors[0], dstIt->oldRawData(), pixelSize);
memcpy(colors[1], dstIt->rawDataConst(), pixelSize);
convolutionOp->convolveColors(colors, weights, dstIt->rawData(), factor, 0, 2, channelFlags);
} else {
memcpy(dstIt->rawData(), dstIt->oldRawData(), pixelSize);
}
} while (dstIt->nextPixel());
dstIt->nextRow();
}
delete colors[0];
delete colors[1];
}
void KisUnsharpFilter::processLightnessOnly(KisPaintDeviceSP device,
const QRect &rect,
quint8 threshold,
qreal weights[2],
qreal factor,
const QBitArray & /*channelFlags*/) const
{
const KoColorSpace *cs = device->colorSpace();
const int pixelSize = cs->pixelSize();
KisHLineIteratorSP dstIt = device->createHLineIteratorNG(rect.x(), rect.y(), rect.width());
quint16 labColorSrc[4];
quint16 labColorDst[4];
const int posL = 0;
const int posAplha = 3;
const qreal factorInv = 1.0 / factor;
for (int j = 0; j < rect.height(); j++) {
do {
quint8 diff = cs->differenceA(dstIt->oldRawData(), dstIt->rawDataConst());
if (diff > threshold) {
cs->toLabA16(dstIt->oldRawData(), (quint8*)labColorSrc, 1);
cs->toLabA16(dstIt->rawDataConst(), (quint8*)labColorDst, 1);
qint32 valueL = (labColorSrc[posL] * weights[0] + labColorDst[posL] * weights[1]) * factorInv;
labColorSrc[posL] = CLAMP(valueL,
KoColorSpaceMathsTraits<quint16>::min,
KoColorSpaceMathsTraits<quint16>::max);
qint32 valueAlpha = (labColorSrc[posAplha] * weights[0] + labColorDst[posAplha] * weights[1]) * factorInv;
labColorSrc[posAplha] = CLAMP(valueAlpha,
KoColorSpaceMathsTraits<quint16>::min,
KoColorSpaceMathsTraits<quint16>::max);
cs->fromLabA16((quint8*)labColorSrc, dstIt->rawData(), 1);
} else {
memcpy(dstIt->rawData(), dstIt->oldRawData(), pixelSize);
}
} while (dstIt->nextPixel());
dstIt->nextRow();
}
}
