void KisFilterRandomPick::processImpl(KisPaintDeviceSP device,
const QRect& applyRect,
const KisFilterConfigurationSP config,
KoUpdater* progressUpdater
) const
{
Q_UNUSED(config);
Q_ASSERT(!device.isNull());
if (progressUpdater) {
progressUpdater->setRange(0, applyRect.width() * applyRect.height());
}
int count = 0;
const KoColorSpace * cs = device->colorSpace();
QVariant value;
int level = (config && config->getProperty("level", value)) ? value.toInt() : 50;
int opacity = (config && config->getProperty("opacity", value)) ? value.toInt() : 100;
double windowsize = (config && config->getProperty("windowsize", value)) ? value.toDouble() : 2.5;
int seedThreshold = rand();
int seedH = rand();
int seedV = rand();
if (config) {
seedThreshold = config->getInt("seedThreshold", seedThreshold);
seedH = config->getInt("seedH", seedH);
seedV = config->getInt("seedV", seedV);
}
KisRandomGenerator randT(seedThreshold);
KisRandomGenerator randH(seedH);
KisRandomGenerator randV(seedV);
KisSequentialIterator dstIt(device, applyRect);
KisRandomConstAccessorSP srcRA = device->createRandomConstAccessorNG(0, 0);
double threshold = (100 - level) / 100.0;
qint16 weights[2];
weights[0] = (255 * opacity) / 100; weights[1] = 255 - weights[0];
const quint8* pixels[2];
KoMixColorsOp * mixOp = cs->mixColorsOp();
do{
if (randT.doubleRandomAt(dstIt.x(), dstIt.y()) > threshold) {
int x = static_cast<int>(dstIt.x() + windowsize * (randH.doubleRandomAt(dstIt.x(), dstIt.y()) - 0.5));
int y = static_cast<int>(dstIt.y() + windowsize * (randV.doubleRandomAt(dstIt.x(), dstIt.y()) -0.5));
srcRA->moveTo(x, y);
pixels[0] = srcRA->oldRawData();
pixels[1] = dstIt.oldRawData();
mixOp->mixColors(pixels, weights, 2, dstIt.rawData());
}
if (progressUpdater) progressUpdater->setValue(++count);
} while(dstIt.nextPixel());
}
void KisFilterWave::processImpl(KisPaintDeviceSP device,
const QRect& applyRect,
const KisFilterConfiguration* config,
KoUpdater* progressUpdater
) const
{
Q_ASSERT(device.data() != 0);
int cost = (applyRect.width() * applyRect.height()) / 100;
if (cost == 0) cost = 1;
int count = 0;
QVariant value;
int horizontalwavelength = (config && config->getProperty("horizontalwavelength", value)) ? value.toInt() : 50;
int horizontalshift = (config && config->getProperty("horizontalshift", value)) ? value.toInt() : 50;
int horizontalamplitude = (config && config->getProperty("horizontalamplitude", value)) ? value.toInt() : 4;
int horizontalshape = (config && config->getProperty("horizontalshape", value)) ? value.toInt() : 0;
int verticalwavelength = (config && config->getProperty("verticalwavelength", value)) ? value.toInt() : 50;
int verticalshift = (config && config->getProperty("verticalshift", value)) ? value.toInt() : 50;
int verticalamplitude = (config && config->getProperty("verticalamplitude", value)) ? value.toInt() : 4;
int verticalshape = (config && config->getProperty("verticalshape", value)) ? value.toInt() : 0;
KisSequentialIterator dstIt(device, applyRect);
KisWaveCurve* verticalcurve;
if (verticalshape == 1)
verticalcurve = new KisTriangleWaveCurve(verticalamplitude, verticalwavelength, verticalshift);
else
verticalcurve = new KisSinusoidalWaveCurve(verticalamplitude, verticalwavelength, verticalshift);
KisWaveCurve* horizontalcurve;
if (horizontalshape == 1)
horizontalcurve = new KisTriangleWaveCurve(horizontalamplitude, horizontalwavelength, horizontalshift);
else
horizontalcurve = new KisSinusoidalWaveCurve(horizontalamplitude, horizontalwavelength, horizontalshift);
KisRandomSubAccessorSP srcRSA = device->createRandomSubAccessor();
do {
double xv = horizontalcurve->valueAt(dstIt.y(), dstIt.x());
double yv = verticalcurve->valueAt(dstIt.x(), dstIt.y());
srcRSA->moveTo(QPointF(xv, yv));
srcRSA->sampledOldRawData(dstIt.rawData());
if (progressUpdater) progressUpdater->setProgress((++count) / cost);
} while (dstIt.nextPixel());
delete horizontalcurve;
delete verticalcurve;
}
KisSelectionSP selectionFromAlphaChannel(KisPaintDeviceSP device,
const QRect &srcRect)
{
const KoColorSpace *cs = device->colorSpace();
KisSelectionSP baseSelection = new KisSelection(new KisSelectionEmptyBounds(0));
KisPixelSelectionSP selection = baseSelection->pixelSelection();
KisSequentialConstIterator srcIt(device, srcRect);
KisSequentialIterator dstIt(selection, srcRect);
do {
quint8 *dstPtr = dstIt.rawData();
const quint8* srcPtr = srcIt.rawDataConst();
*dstPtr = cs->opacityU8(srcPtr);
} while(srcIt.nextPixel() && dstIt.nextPixel());
return baseSelection;
}
void findEdge(KisPixelSelectionSP selection, const QRect &applyRect, const bool edgeHidden)
{
KisSequentialIterator dstIt(selection, applyRect);
if (edgeHidden) {
do {
quint8 *pixelPtr = dstIt.rawData();
*pixelPtr =
(*pixelPtr < 24) ?
*pixelPtr * 10 : 0xFF;
} while(dstIt.nextPixel());
} else {
do {
quint8 *pixelPtr = dstIt.rawData();
*pixelPtr = 0xFF;
} while(dstIt.nextPixel());
}
}
void KisPixelizeFilter::processImpl(KisPaintDeviceSP device,
const QRect& applyRect,
const KisFilterConfiguration* config,
KoUpdater* progressUpdater
) const
{
QPoint srcTopLeft = applyRect.topLeft();
Q_ASSERT(device);
qint32 width = applyRect.width();
qint32 height = applyRect.height();
//read the filter configuration values from the KisFilterConfiguration object
quint32 pixelWidth = config ? config->getInt("pixelWidth", 10) : 10;
quint32 pixelHeight = config ? config->getInt("pixelHeight", 10) : 10;
if (pixelWidth == 0) pixelWidth = 1;
if (pixelHeight == 0) pixelHeight = 1;
qint32 pixelSize = device->pixelSize();
QVector<qint32> average(pixelSize);
qint32 count;
if (progressUpdater) {
progressUpdater->setRange(0, applyRect.width() * applyRect.height());
}
qint32 numberOfPixelsProcessed = 0;
for (qint32 y = 0; y < height; y += pixelHeight - (y % pixelHeight)) {
qint32 h = pixelHeight;
h = qMin(h, height - y);
for (qint32 x = 0; x < width; x += pixelWidth - (x % pixelWidth)) {
qint32 w = pixelWidth;
w = qMin(w, width - x);
average.fill(0, pixelSize);
count = 0;
//read
KisSequentialConstIterator srcIt(device, QRect(srcTopLeft.x() + x, srcTopLeft.y() + y, w, h));
do {
for (qint32 i = 0; i < pixelSize; i++) {
average[i] += srcIt.oldRawData()[i];
}
count++;
} while (srcIt.nextPixel());
//average
if (count > 0) {
for (qint32 i = 0; i < pixelSize; i++)
average[i] /= count;
}
//write
KisSequentialIterator dstIt(device, QRect(srcTopLeft.x() + x, srcTopLeft.y() + y, w, h));
do {
for (int i = 0; i < pixelSize; i++) {
dstIt.rawData()[i] = average[i];
}
} while (dstIt.nextPixel());
if (progressUpdater) progressUpdater->setValue(++numberOfPixelsProcessed);
}
}
}
