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());
}
KoColor KoColorSlider::currentColor() const
{
const quint8 *colors[2];
colors[0] = d->minColor.data();
colors[1] = d->maxColor.data();
KoMixColorsOp * mixOp = d->minColor.colorSpace()->mixColorsOp();
KoColor c(d->minColor.colorSpace());
qint16 weights[2];
weights[1] = (value() - minimum()) / qreal(maximum() - minimum()) * 255;
weights[0] = 255 - weights[1];
mixOp->mixColors(colors, weights, 2, c.data());
return c;
}
KisPaintDeviceSP KisShearVisitor::yShear(KisPaintDeviceSP src, qreal shearY, KoUpdater *progress)
{
int start = progress->progress();
KisPaintDeviceSP dst = KisPaintDeviceSP(new KisPaintDevice(src->colorSpace()));
KoMixColorsOp * mixOp = src->colorSpace()->mixColorsOp();
dst->setX(src->x());
dst->setY(src->y());
QRect r = src->exactBounds();
qreal displacement;
qint32 displacementInt;
qreal weight;
for (qint32 x = r.left(); x <= r.right(); x++) {
//calculate displacement
displacement = x * shearY;
displacementInt = (qint32)(floor(displacement));
weight = displacement - displacementInt;
qint16 pixelWeights[2];
pixelWeights[0] = static_cast<quint8>(weight * 255 + 0.5);
pixelWeights[1] = 255 - pixelWeights[0];
KisVLineConstIteratorPixel srcIt = src->createVLineIterator(x, r.y(), r.height() + 1);
KisVLineIteratorPixel leftSrcIt = src->createVLineIterator(x, r.y() - 1, r.height() + 1);
KisVLineIteratorPixel dstIt = dst->createVLineIterator(x, r.y() + displacementInt, r.height() + 1);
while (!srcIt.isDone()) {
const quint8 *pixelPtrs[2];
pixelPtrs[0] = leftSrcIt.rawData();
pixelPtrs[1] = srcIt.rawData();
mixOp->mixColors(pixelPtrs, pixelWeights, 2, dstIt.rawData());
++srcIt;
++leftSrcIt;
++dstIt;
}
progress->setProgress(start + x);
}
return dst;
}
KisPaintDeviceSP KisShearVisitor::xShear(KisPaintDeviceSP src, qreal shearX, KoUpdater *progress)
{
KisPaintDeviceSP dst = KisPaintDeviceSP(new KisPaintDevice(src->colorSpace()));
dst->setX(src->x());
dst->setY(src->y());
QRect r = src->exactBounds();
qreal displacement;
qint32 displacementInt;
qreal weight;
KoMixColorsOp * mixOp = src->colorSpace()->mixColorsOp();
for (qint32 y = r.top(); y <= r.bottom(); y++) {
//calculate displacement
displacement = -y * shearX;
displacementInt = (qint32)(floor(displacement));
weight = displacement - displacementInt;
qint16 pixelWeights[2];
pixelWeights[0] = static_cast<quint8>(weight * 255 + 0.5);
pixelWeights[1] = 255 - pixelWeights[0];
KisHLineConstIteratorPixel srcIt = src->createHLineIterator(r.x(), y, r.width() + 1);
KisHLineConstIteratorPixel leftSrcIt = src->createHLineIterator(r.x() - 1, y, r.width() + 1);
KisHLineIteratorPixel dstIt = dst->createHLineIterator(r.x() + displacementInt, y, r.width() + 1);
while (!srcIt.isDone()) {
const quint8 *pixelPtrs[2];
pixelPtrs[0] = leftSrcIt.rawData();
pixelPtrs[1] = srcIt.rawData();
mixOp->mixColors(pixelPtrs, pixelWeights, 2, dstIt.rawData());
++srcIt;
++leftSrcIt;
++dstIt;
}
progress->setProgress(y);
}
return dst;
}
void KoRgbU8ColorSpaceTester::testMixColorsAverage()
{
const KoColorSpace* cs = KoColorSpaceRegistry::instance()->rgb8();
KoMixColorsOp * mixOp = cs->mixColorsOp();
// Test mixColors.
quint8 pixel1[4];
quint8 pixel2[4];
quint8 outputPixel[4];
pixel1[PIXEL_RED] = 255;
pixel1[PIXEL_GREEN] = 255;
pixel1[PIXEL_BLUE] = 255;
pixel1[PIXEL_ALPHA] = 255;
pixel2[PIXEL_RED] = 0;
pixel2[PIXEL_GREEN] = 0;
pixel2[PIXEL_BLUE] = 0;
pixel2[PIXEL_ALPHA] = 0;
const quint8 *pixelPtrs[2];
pixelPtrs[0] = pixel1;
pixelPtrs[1] = pixel2;
mixOp->mixColors(pixelPtrs, 2, outputPixel);
QCOMPARE((int)outputPixel[PIXEL_RED], 255);
QCOMPARE((int)outputPixel[PIXEL_GREEN], 255);
QCOMPARE((int)outputPixel[PIXEL_BLUE], 255);
QCOMPARE((int)outputPixel[PIXEL_ALPHA], 127);
pixel2[PIXEL_ALPHA] = 255;
mixOp->mixColors(pixelPtrs, 2, outputPixel);
QCOMPARE((int)outputPixel[PIXEL_RED], 127);
QCOMPARE((int)outputPixel[PIXEL_GREEN], 127);
QCOMPARE((int)outputPixel[PIXEL_BLUE], 127);
QCOMPARE((int)outputPixel[PIXEL_ALPHA], 255);
}
void KoXYColorSelector::drawContents( QPainter *painter )
{
KoColor c = m_colors[0]; // quick way to set the colorspace
QColor color;
const quint8 *colors[4];
colors[0] = m_colors[0].data();
colors[1] = m_colors[1].data();
colors[2] = m_colors[2].data();
colors[3] = m_colors[3].data();
QRect contentsRect_(contentsRect());
QImage image(contentsRect_.width(), contentsRect_.height(), QImage::Format_ARGB32 );
KoMixColorsOp * mixOp = m_colorSpace->mixColorsOp();
for (int x = 0; x < contentsRect_.width(); x++)
for (int y = 0; y < contentsRect_.height(); y++){
qreal xVal = static_cast<qreal>(x) / (contentsRect_.width() - 1);
qreal yVal = static_cast<qreal>(y) / (contentsRect_.height() - 1);
qint16 colorWeights[4];
colorWeights[0] = static_cast<quint8>((1.0 - yVal) * (1.0 - xVal) * 255 + 0.5);
colorWeights[1] = static_cast<quint8>((1.0 - yVal) * (xVal) * 255 + 0.5);
colorWeights[2] = static_cast<quint8>((yVal) * (1.0 - xVal) * 255 + 0.5);
colorWeights[3] = static_cast<quint8>((yVal) * (xVal) * 255 + 0.5);
mixOp->mixColors(colors, colorWeights, 4, c.data());
c.toQColor( &color);
image.setPixel(x, y, color.rgba());
}
painter->drawImage( contentsRect_, image, QRect( 0, 0, image.width(), image.height()) );
}
void SprayBrush::paint(KisPaintDeviceSP dab, KisPaintDeviceSP source,
const KisPaintInformation& info, qreal rotation, qreal scale,
const KoColor &color, const KoColor &bgColor)
{
// initializing painter
if (!m_painter) {
m_painter = new KisPainter(dab);
m_painter->setFillStyle(KisPainter::FillStyleForegroundColor);
m_painter->setMaskImageSize(m_shapeProperties->width, m_shapeProperties->height);
m_dabPixelSize = dab->colorSpace()->pixelSize();
if (m_colorProperties->useRandomHSV) {
m_transfo = dab->colorSpace()->createColorTransformation("hsv_adjustment", QHash<QString, QVariant>());
}
m_brushQImage = m_shapeProperties->image;
if (!m_brushQImage.isNull()) {
m_brushQImage = m_brushQImage.scaled(m_shapeProperties->width, m_shapeProperties->height);
}
m_imageDevice = new KisPaintDevice(dab->colorSpace());
}
qreal x = info.pos().x();
qreal y = info.pos().y();
KisRandomAccessorSP accessor = dab->createRandomAccessorNG(qRound(x), qRound(y));
Q_ASSERT(color.colorSpace()->pixelSize() == dab->pixelSize());
m_inkColor = color;
KisCrossDeviceColorPicker colorPicker(source, m_inkColor);
// apply size sensor
m_radius = m_properties->radius * scale;
// jitter movement
if (m_properties->jitterMovement) {
x = x + ((2 * m_radius * drand48()) - m_radius) * m_properties->amount;
y = y + ((2 * m_radius * drand48()) - m_radius) * m_properties->amount;
}
// this is wrong for every shape except pixel and anti-aliased pixel
if (m_properties->useDensity) {
m_particlesCount = (m_properties->coverage * (M_PI * m_radius * m_radius));
}
else {
m_particlesCount = m_properties->particleCount;
}
QHash<QString, QVariant> params;
qreal nx, ny;
int ix, iy;
qreal angle;
qreal length;
qreal rotationZ = 0.0;
qreal particleScale = 1.0;
bool shouldColor = true;
if (m_colorProperties->fillBackground) {
m_painter->setPaintColor(bgColor);
paintCircle(m_painter, x, y, m_radius);
}
QTransform m;
m.reset();
m.rotateRadians(-rotation + deg2rad(m_properties->brushRotation));
m.scale(m_properties->scale, m_properties->scale);
for (quint32 i = 0; i < m_particlesCount; i++) {
// generate random angle
angle = drand48() * M_PI * 2;
// generate random length
if (m_properties->gaussian) {
length = qBound<qreal>(0.0, m_rand->nextGaussian(0.0, 0.50) , 1.0);
}
else {
length = drand48();
}
if (m_shapeDynamicsProperties->enabled) {
// rotation
rotationZ = rotationAngle();
if (m_shapeDynamicsProperties->followCursor) {
rotationZ = linearInterpolation(rotationZ, angle, m_shapeDynamicsProperties->followCursorWeigth);
}
if (m_shapeDynamicsProperties->followDrawingAngle) {
rotationZ = linearInterpolation(rotationZ, info.drawingAngle(), m_shapeDynamicsProperties->followDrawingAngleWeight);
}
// random size - scale
if (m_shapeDynamicsProperties->randomSize) {
particleScale = drand48();
}
}
// generate polar coordinate
nx = (m_radius * cos(angle) * length);
ny = (m_radius * sin(angle) * length);
// compute the height of the ellipse
ny *= m_properties->aspect;
// transform
m.map(nx, ny, &nx, &ny);
// color transformation
if (shouldColor) {
if (m_colorProperties->sampleInputColor) {
colorPicker.pickOldColor(nx + x, ny + y, m_inkColor.data());
}
// mix the color with background color
if (m_colorProperties->mixBgColor) {
KoMixColorsOp * mixOp = dab->colorSpace()->mixColorsOp();
const quint8 *colors[2];
colors[0] = m_inkColor.data();
colors[1] = bgColor.data();
qint16 colorWeights[2];
int MAX_16BIT = 255;
qreal blend = info.pressure();
colorWeights[0] = static_cast<quint16>(blend * MAX_16BIT);
colorWeights[1] = static_cast<quint16>((1.0 - blend) * MAX_16BIT);
mixOp->mixColors(colors, colorWeights, 2, m_inkColor.data());
}
if (m_colorProperties->useRandomHSV && m_transfo) {
params["h"] = (m_colorProperties->hue / 180.0) * drand48();
params["s"] = (m_colorProperties->saturation / 100.0) * drand48();
params["v"] = (m_colorProperties->value / 100.0) * drand48();
m_transfo->setParameters(params);
m_transfo->transform(m_inkColor.data(), m_inkColor.data() , 1);
}
if (m_colorProperties->useRandomOpacity) {
quint8 alpha = qRound(drand48() * OPACITY_OPAQUE_U8);
m_inkColor.setOpacity(alpha);
m_painter->setOpacity(alpha);
}
if (!m_colorProperties->colorPerParticle) {
shouldColor = false;
}
m_painter->setPaintColor(m_inkColor);
}
qreal jitteredWidth = qMax(qreal(1.0), m_shapeProperties->width * particleScale);
qreal jitteredHeight = qMax(qreal(1.0), m_shapeProperties->height * particleScale);
if (m_shapeProperties->enabled){
switch (m_shapeProperties->shape){
// ellipse
case 0:
{
if (m_shapeProperties->width == m_shapeProperties->height){
paintCircle(m_painter, nx + x, ny + y, qRound(jitteredWidth * 0.5));
}
else {
paintEllipse(m_painter, nx + x, ny + y, qRound(jitteredWidth * 0.5) , qRound(jitteredHeight * 0.5), rotationZ);
}
break;
}
// rectangle
case 1:
{
paintRectangle(m_painter, nx + x, ny + y, qRound(jitteredWidth) , qRound(jitteredHeight), rotationZ);
break;
}
// wu-particle
case 2: {
paintParticle(accessor, m_inkColor, nx + x, ny + y);
break;
}
// pixel
case 3: {
ix = qRound(nx + x);
iy = qRound(ny + y);
accessor->moveTo(ix, iy);
memcpy(accessor->rawData(), m_inkColor.data(), m_dabPixelSize);
break;
}
case 4: {
if (!m_brushQImage.isNull()) {
QTransform m;
m.rotate(rad2deg(rotationZ));
if (m_shapeDynamicsProperties->randomSize) {
m.scale(particleScale, particleScale);
}
m_transformed = m_brushQImage.transformed(m, Qt::SmoothTransformation);
m_imageDevice->convertFromQImage(m_transformed, 0);
KisRandomAccessorSP ac = m_imageDevice->createRandomAccessorNG(0, 0);
QRect rc = m_transformed.rect();
if (m_colorProperties->useRandomHSV && m_transfo) {
for (int y = rc.y(); y < rc.y() + rc.height(); y++) {
for (int x = rc.x(); x < rc.x() + rc.width(); x++) {
ac->moveTo(x, y);
m_transfo->transform(ac->rawData(), ac->rawData() , 1);
}
}
}
ix = qRound(nx + x - rc.width() * 0.5);
iy = qRound(ny + y - rc.height() * 0.5);
m_painter->bitBlt(QPoint(ix, iy), m_imageDevice, rc);
m_imageDevice->clear();
break;
}
}
}
// Auto-brush
}
else {
QPointF hotSpot = m_brush->hotSpot(particleScale, particleScale, -rotationZ, info);
QPointF pos(nx + x, ny + y);
QPointF pt = pos - hotSpot;
qint32 ix;
qreal xFraction;
qint32 iy;
qreal yFraction;
KisPaintOp::splitCoordinate(pt.x(), &ix, &xFraction);
KisPaintOp::splitCoordinate(pt.y(), &iy, &yFraction);
//KisFixedPaintDeviceSP dab;
if (m_brush->brushType() == IMAGE ||
m_brush->brushType() == PIPE_IMAGE) {
m_fixedDab = m_brush->paintDevice(m_fixedDab->colorSpace(), particleScale, -rotationZ, info, xFraction, yFraction);
if (m_colorProperties->useRandomHSV && m_transfo) {
quint8 * dabPointer = m_fixedDab->data();
int pixelCount = m_fixedDab->bounds().width() * m_fixedDab->bounds().height();
m_transfo->transform(dabPointer, dabPointer, pixelCount);
}
}
else {
m_brush->mask(m_fixedDab, m_inkColor, particleScale, particleScale, -rotationZ, info, xFraction, yFraction);
}
m_painter->bltFixed(QPoint(ix, iy), m_fixedDab, m_fixedDab->bounds());
}
}
// recover from jittering of color,
// m_inkColor.opacity is recovered with every paint
}
void KisFilterNoise::processImpl(KisPaintDeviceSP device,
const QRect& applyRect,
const KisFilterConfiguration* config,
KoUpdater* progressUpdater
) const
{
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;
KisSequentialIterator it(device, applyRect);
quint8* interm = new quint8[cs->pixelSize()];
double threshold = (100.0 - level) * 0.01;
qint16 weights[2];
weights[0] = (255 * opacity) / 100;
weights[1] = 255 - weights[0];
const quint8* pixels[2];
pixels[0] = interm;
KoMixColorsOp * mixOp = cs->mixColorsOp();
int seedThreshold = rand();
int seedRed = rand();
int seedGreen = rand();
int seedBlue = rand();
if (config) {
seedThreshold = config->getInt("seedThreshold", seedThreshold);
seedRed = config->getInt("seedRed", seedRed);
seedGreen = config->getInt("seedGreen", seedGreen);
seedBlue = config->getInt("seedBlue", seedBlue);
}
KisRandomGenerator randt(seedThreshold);
KisRandomGenerator randr(seedRed);
KisRandomGenerator randg(seedGreen);
KisRandomGenerator randb(seedBlue);
do {
if (randt.doubleRandomAt(it.x(), it.y()) > threshold) {
// XXX: Added static_cast to get rid of warnings
QColor c = qRgb(static_cast<int>((double)randr.doubleRandomAt(it.x(), it.y()) * 255),
static_cast<int>((double)randg.doubleRandomAt(it.x(), it.y()) * 255),
static_cast<int>((double)randb.doubleRandomAt(it.x(), it.y()) * 255));
cs->fromQColor(c, interm, 0);
pixels[1] = it.oldRawData();
mixOp->mixColors(pixels, weights, 2, it.rawData());
}
if (progressUpdater) progressUpdater->setValue(++count);
} while (it.nextPixel() && !(progressUpdater && progressUpdater->interrupted()));
delete [] interm;
}
void KoRgbColorSpaceTester::testMixColors()
{
const KoColorSpace* cs = KoColorSpaceRegistry::instance()->rgb8();
KoMixColorsOp * mixOp = cs->mixColorsOp();
// Test mixColors.
quint8 pixel1[4];
quint8 pixel2[4];
quint8 outputPixel[4];
pixel1[PIXEL_RED] = 255;
pixel1[PIXEL_GREEN] = 255;
pixel1[PIXEL_BLUE] = 255;
pixel1[PIXEL_ALPHA] = 255;
pixel2[PIXEL_RED] = 0;
pixel2[PIXEL_GREEN] = 0;
pixel2[PIXEL_BLUE] = 0;
pixel2[PIXEL_ALPHA] = 0;
const quint8 *pixelPtrs[2];
qint16 weights[2];
pixelPtrs[0] = pixel1;
pixelPtrs[1] = pixel2;
weights[0] = 255;
weights[1] = 0;
mixOp->mixColors(pixelPtrs, weights, 2, outputPixel);
QVERIFY((int)outputPixel[PIXEL_RED] == 255);
QVERIFY((int)outputPixel[PIXEL_GREEN] == 255);
QVERIFY((int)outputPixel[PIXEL_BLUE] == 255);
QVERIFY((int)outputPixel[PIXEL_ALPHA] == 255);
weights[0] = 0;
weights[1] = 255;
mixOp->mixColors(pixelPtrs, weights, 2, outputPixel);
QVERIFY((int)outputPixel[PIXEL_RED] == 0);
QVERIFY((int)outputPixel[PIXEL_GREEN] == 0);
QVERIFY((int)outputPixel[PIXEL_BLUE] == 0);
QVERIFY((int)outputPixel[PIXEL_ALPHA] == 0);
weights[0] = 128;
weights[1] = 127;
mixOp->mixColors(pixelPtrs, weights, 2, outputPixel);
QVERIFY((int)outputPixel[PIXEL_RED] == 255);
QVERIFY((int)outputPixel[PIXEL_GREEN] == 255);
QVERIFY((int)outputPixel[PIXEL_BLUE] == 255);
QVERIFY((int)outputPixel[PIXEL_ALPHA] == 128);
pixel1[PIXEL_RED] = 200;
pixel1[PIXEL_GREEN] = 100;
pixel1[PIXEL_BLUE] = 50;
pixel1[PIXEL_ALPHA] = 255;
pixel2[PIXEL_RED] = 100;
pixel2[PIXEL_GREEN] = 200;
pixel2[PIXEL_BLUE] = 20;
pixel2[PIXEL_ALPHA] = 255;
mixOp->mixColors(pixelPtrs, weights, 2, outputPixel);
QVERIFY((int)outputPixel[PIXEL_RED] == 150);
QCOMPARE((int)outputPixel[PIXEL_GREEN], 149);
QVERIFY((int)outputPixel[PIXEL_BLUE] == 35);
QVERIFY((int)outputPixel[PIXEL_ALPHA] == 255);
pixel1[PIXEL_RED] = 0;
pixel1[PIXEL_GREEN] = 0;
pixel1[PIXEL_BLUE] = 0;
pixel1[PIXEL_ALPHA] = 0;
pixel2[PIXEL_RED] = 255;
pixel2[PIXEL_GREEN] = 255;
pixel2[PIXEL_BLUE] = 255;
pixel2[PIXEL_ALPHA] = 254;
weights[0] = 89;
weights[1] = 166;
mixOp->mixColors(pixelPtrs, weights, 2, outputPixel);
QVERIFY((int)outputPixel[PIXEL_RED] == 255);
QVERIFY((int)outputPixel[PIXEL_GREEN] == 255);
QVERIFY((int)outputPixel[PIXEL_BLUE] == 255);
QVERIFY((int)outputPixel[PIXEL_ALPHA] == 165);
}
void KoColorSlider::drawContents( QPainter *painter )
{
QPixmap checker(8, 8);
QPainter p(&checker);
p.fillRect(0, 0, 4, 4, Qt::lightGray);
p.fillRect(4, 0, 4, 4, Qt::darkGray);
p.fillRect(0, 4, 4, 4, Qt::darkGray);
p.fillRect(4, 4, 4, 4, Qt::lightGray);
p.end();
QRect contentsRect_(contentsRect());
painter->fillRect(contentsRect_, QBrush(checker));
if( !d->upToDate || d->pixmap.isNull() || d->pixmap.width() != contentsRect_.width()
|| d->pixmap.height() != contentsRect_.height() )
{
KoColor c = d->minColor; // smart way to fetch colorspace
QColor color;
const quint8 *colors[2];
colors[0] = d->minColor.data();
colors[1] = d->maxColor.data();
KoMixColorsOp * mixOp = c.colorSpace()->mixColorsOp();
QImage image(contentsRect_.width(), contentsRect_.height(), QImage::Format_ARGB32 );
if( orientation() == Qt::Horizontal ) {
for (int x = 0; x < contentsRect_.width(); x++) {
qreal t = static_cast<qreal>(x) / (contentsRect_.width() - 1);
qint16 colorWeights[2];
colorWeights[0] = static_cast<quint8>((1.0 - t) * 255 + 0.5);
colorWeights[1] = 255 - colorWeights[0];
mixOp->mixColors(colors, colorWeights, 2, c.data());
c.toQColor(&color);
for (int y = 0; y < contentsRect_.height(); y++)
image.setPixel(x, y, color.rgba());
}
}
else {
for (int y = 0; y < contentsRect_.height(); y++) {
qreal t = static_cast<qreal>(y) / (contentsRect_.height() - 1);
qint16 colorWeights[2];
colorWeights[0] = static_cast<quint8>((t) * 255 + 0.5);
colorWeights[1] = 255 - colorWeights[0];
mixOp->mixColors(colors, colorWeights, 2, c.data());
c.toQColor(&color);
for (int x = 0; x < contentsRect_.width(); x++)
image.setPixel(x, y, color.rgba());
}
}
d->pixmap = QPixmap::fromImage(image);
d->upToDate = true;
}
painter->drawPixmap( contentsRect_, d->pixmap, QRect( 0, 0, d->pixmap.width(), d->pixmap.height()) );
}
void KisCubismFilter::fillPolyColor(KisPaintDeviceSP src,
const QPoint& srcTopLeft,
KisPaintDeviceSP dst,
const QPoint & dstTopLeft,
const QSize& size,
KisPolygon* poly,
const quint8* col,
quint8* dest) const
// void KisCubismFilter::fillPolyColor (KisPaintDeviceSP src, KisPaintDeviceSP dst, KisPolygon* poly, const quint8* col, quint8* /*s*/, QRect rect) const
{
Q_UNUSED(srcTopLeft);
Q_UNUSED(dest);
qint32 val;
double alpha;
qint32 x, y;
double xx, yy;
double vec[2];
QRect rect(dstTopLeft, size);
qint32 x1 = rect.left(), y1 = rect.top(), x2 = rect.right(), y2 = rect.bottom();
// qint32 selWidth, selHeight;
qint32 *vals, *valsIter, *valsEnd;
qint32 xs, ys, xe, ye;
qint32 sx = (qint32)(*poly)[0].x();
qint32 sy = (qint32)(*poly)[0].y();
qint32 ex = (qint32)(*poly)[1].x();
qint32 ey = (qint32)(*poly)[1].y();
double dist = sqrt((double)(SQR(ex - sx) + SQR(ey - sy)));
double oneOverDist = 0.0;
if (dist > 0.0) {
double oneOverDist = 1 / dist;
vec[0] = (ex - sx) * oneOverDist;
vec[1] = (ey - sy) * oneOverDist;
}
qint32 pixelSize = src->pixelSize();
//get the extents of the polygon
double dMinX, dMinY, dMaxX, dMaxY;
poly->extents(dMinX, dMinY, dMaxX, dMaxY);
qint32 minX = static_cast<qint32>(dMinX);
qint32 minY = static_cast<qint32>(dMinY);
qint32 maxX = static_cast<qint32>(dMaxX);
qint32 maxY = static_cast<qint32>(dMaxY);
qint32 sizeX = (maxX - minX) * SUPERSAMPLE;
qint32 sizeY = (maxY - minY) * SUPERSAMPLE;
qint32 *minScanlines = new qint32[sizeY];
qint32 *minScanlinesIter = minScanlines;
qint32 *maxScanlines = new qint32[sizeY];
qint32 *maxScanlinesIter = maxScanlines;
for (qint32 i = 0; i < sizeY; i++) {
minScanlines[i] = maxX * SUPERSAMPLE;
maxScanlines[i] = minX * SUPERSAMPLE;
}
if (poly->numberOfPoints()) {
qint32 polyNpts = poly->numberOfPoints();
xs = static_cast<qint32>((*poly)[polyNpts-1].x());
ys = static_cast<qint32>((*poly)[polyNpts-1].y());
xe = static_cast<qint32>((*poly)[0].x());
ye = static_cast<qint32>((*poly)[0].y());
xs *= SUPERSAMPLE;
ys *= SUPERSAMPLE;
xe *= SUPERSAMPLE;
ye *= SUPERSAMPLE;
convertSegment(xs, ys, xe, ye, minY * SUPERSAMPLE, minScanlines, maxScanlines, minX* SUPERSAMPLE, maxX* SUPERSAMPLE);
KisPolygon::iterator it;
for (it = poly->begin(); it != poly->end();) {
xs = static_cast<qint32>((*it).x());
ys = static_cast<qint32>((*it).y());
++it;
if (it != poly->end()) {
xe = static_cast<qint32>((*it).x());
ye = static_cast<qint32>((*it).y());
xs *= SUPERSAMPLE;
ys *= SUPERSAMPLE;
xe *= SUPERSAMPLE;
ye *= SUPERSAMPLE;
convertSegment(xs, ys, xe, ye, minY * SUPERSAMPLE, minScanlines, maxScanlines, minX* SUPERSAMPLE, maxX* SUPERSAMPLE);
}
}
}
KisRandomAccessor dstAccessor = dst->createRandomAccessor(0, 0);
KoMixColorsOp * mixOp = src->colorSpace()->mixColorsOp();
quint8* buf = new quint8[pixelSize];
vals = new qint32[sizeX];
// x1 = minX; x2 = maxX; y1 = minY; y2 = maxY;
for (qint32 i = 0; i < sizeY; i++, minScanlinesIter++, maxScanlinesIter++) {
if (!(i % SUPERSAMPLE)) {
memset(vals, 0, sizeof(qint32) * sizeX);
}
yy = static_cast<double>(i) / static_cast<double>(SUPERSAMPLE) + minY;
for (qint32 j = *minScanlinesIter; j < *maxScanlinesIter; j++) {
x = j - minX * SUPERSAMPLE;
vals[x] += 255;
}
if (!((i + 1) % SUPERSAMPLE)) {
y = (i / SUPERSAMPLE) + minY;
if (y >= y1 && y <= y2) {
for (qint32 j = 0; j < sizeX; j += SUPERSAMPLE) {
x = (j / SUPERSAMPLE) + minX;
if (x >= x1 && x <= x2) {
for (val = 0, valsIter = &vals[j], valsEnd = &valsIter[SUPERSAMPLE]; valsIter < valsEnd; valsIter++) {
val += *valsIter;
}
val /= SQR(SUPERSAMPLE);
if (val > 0) {
xx = static_cast<double>(j) / static_cast<double>(SUPERSAMPLE) + minX;
alpha = calcAlphaBlend(vec, oneOverDist, xx - sx, yy - sy);
qint16 weights[2];
weights[0] = static_cast<quint8>(alpha * 255);
weights[1] = 255 - weights[0];
dstAccessor.moveTo(x, y);
memcpy(buf, dstAccessor.rawData(), sizeof(quint8) * pixelSize);
const quint8* colors[2];
colors[0] = col;
colors[1] = buf;
mixOp->mixColors(colors, weights, 2, dstAccessor.rawData());
}
}
}
}
}
}
delete[] buf;
delete[] vals;
delete[] minScanlines;
delete[] maxScanlines;
}