inline void setPixel(KisFixedPaintDeviceSP dev, int x, int y, quint8 alpha)
{
KoColor c(Qt::black, dev->colorSpace());
c.setOpacity(alpha);
dev->fill(x, y, 1, 1, c.data());
}
void HairyBrush::fromDabWithDensity(KisFixedPaintDeviceSP dab, qreal density)
{
int width = dab->bounds().width();
int height = dab->bounds().height();
int centerX = width * 0.5;
int centerY = height * 0.5;
// make mask
Bristle * bristle = 0;
qreal alpha;
quint8 * dabPointer = dab->data();
quint8 pixelSize = dab->pixelSize();
const KoColorSpace * cs = dab->colorSpace();
KoColor bristleColor(cs);
srand48(12345678);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
alpha = cs->opacityF(dabPointer);
if (alpha != 0.0){
if (density == 1.0 || drand48() <= density){
memcpy(bristleColor.data(), dabPointer, pixelSize);
bristle = new Bristle(x - centerX, y - centerY, alpha); // using value from image as length of bristle
bristle->setColor(bristleColor);
m_bristles.append(bristle);
}
}
dabPointer += pixelSize;
}
}
}
void KisPressureSharpnessOption::applyThreshold(KisFixedPaintDeviceSP dab)
{
if (!isChecked()) return;
const KoColorSpace * cs = dab->colorSpace();
// Set all alpha > opaque/2 to opaque, the rest to transparent.
// XXX: Using 4/10 as the 1x1 circle brush paints nothing with 0.5.
quint8* dabPointer = dab->data();
QRect rc = dab->bounds();
int pixelSize = dab->pixelSize();
int pixelCount = rc.width() * rc.height();
for (int i = 0; i < pixelCount; i++) {
quint8 alpha = cs->opacityU8(dabPointer);
if (alpha < (m_threshold * OPACITY_OPAQUE_U8) / 100) {
cs->setOpacity(dabPointer, OPACITY_TRANSPARENT_U8, 1);
}
else {
cs->setOpacity(dabPointer, OPACITY_OPAQUE_U8, 1);
}
dabPointer += pixelSize;
}
}
inline quint8 pixel(KisFixedPaintDeviceSP dev, int x, int y)
{
KoColor c(Qt::black, dev->colorSpace());
dev->readBytes(c.data(), x, y, 1, 1);
return c.opacityU8();
}
void KisFixedPaintDeviceTest::testColorSpaceConversion()
{
QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "tile.png");
const KoColorSpace* srcCs = KoColorSpaceRegistry::instance()->rgb8();
const KoColorSpace* dstCs = KoColorSpaceRegistry::instance()->lab16();
KisFixedPaintDeviceSP dev = new KisFixedPaintDevice(srcCs);
dev->convertFromQImage(image, 0);
dev->convertTo(dstCs);
QVERIFY(dev->bounds() == QRect(0, 0, image.width(), image.height()));
QVERIFY(dev->pixelSize() == dstCs->pixelSize());
QVERIFY(*dev->colorSpace() == *dstCs);
}
void KisBrushOp::paintAt(const KisPaintInformation& info)
{
if (!painter()->device()) return;
KisBrushSP brush = m_brush;
Q_ASSERT(brush);
if (!brush) return;
KisPaintInformation adjustedInfo = settings->m_optionsWidget->m_sizeOption->apply(info);
if (!brush->canPaintFor(adjustedInfo))
return;
KisPaintDeviceSP device = painter()->device();
double pScale = KisPaintOp::scaleForPressure(adjustedInfo.pressure()); // TODO: why is there scale and pScale that seems to contains the same things ?
QPointF hotSpot = brush->hotSpot(pScale, pScale);
QPointF pt = info.pos() - hotSpot;
// Split the coordinates into integer plus fractional parts. The integer
// is where the dab will be positioned and the fractional part determines
// the sub-pixel positioning.
qint32 x;
double xFraction;
qint32 y;
double yFraction;
splitCoordinate(pt.x(), &x, &xFraction);
splitCoordinate(pt.y(), &y, &yFraction);
quint8 origOpacity = settings->m_optionsWidget->m_opacityOption->apply(painter(), info.pressure());
KoColor origColor = settings->m_optionsWidget->m_darkenOption->apply(painter(), info.pressure());
double scale = KisPaintOp::scaleForPressure(adjustedInfo.pressure());
KisFixedPaintDeviceSP dab = cachedDab(device->colorSpace());
if (brush->brushType() == IMAGE || brush->brushType() == PIPE_IMAGE) {
dab = brush->image(device->colorSpace(), scale, 0.0, adjustedInfo, xFraction, yFraction);
} else {
KoColor color = painter()->paintColor();
color.convertTo(dab->colorSpace());
brush->mask(dab, color, scale, scale, 0.0, info, xFraction, yFraction);
}
painter()->bltFixed(QPoint(x, y), dab, dab->bounds());
painter()->setOpacity(origOpacity);
painter()->setPaintColor(origColor);
}
QImage KisAutoBrush::createBrushPreview()
{
srand(0);
srand48(0);
int width = maskWidth(1.0, 0.0, 0.0, 0.0, KisPaintInformation());
int height = maskHeight(1.0, 0.0, 0.0, 0.0, KisPaintInformation());
KisPaintInformation info(QPointF(width * 0.5, height * 0.5), 0.5, 0, 0, 0, 0);
KisFixedPaintDeviceSP fdev = new KisFixedPaintDevice( KoColorSpaceRegistry::instance()->rgb8() );
fdev->setRect(QRect(0, 0, width, height));
fdev->initialize();
mask(fdev,KoColor(Qt::black, fdev->colorSpace()),1.0, 1.0, 0.0, info);
return fdev->convertToQImage(0);
}
void KisFixedPaintDeviceTest::testCreation()
{
const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
KisFixedPaintDeviceSP dev = new KisFixedPaintDevice(cs);
dev = new KisFixedPaintDevice(cs);
QVERIFY(dev->bounds() == QRect());
QVERIFY(*dev->colorSpace() == *cs);
QVERIFY(dev->pixelSize() == cs->pixelSize());
dev->setRect(QRect(0, 0, 100, 100));
QVERIFY(dev->bounds() == QRect(0, 0, 100, 100));
dev->initialize();
QVERIFY(dev->data() != 0);
quint8* data = dev->data();
for (uint i = 0; i < 100 * 100 * cs->pixelSize(); ++i) {
QVERIFY(data[i] == 0);
}
}
void KisBidirectionalMixingOption::applyFixed(KisFixedPaintDeviceSP dab, KisPaintDeviceSP device, KisPainter* painter, qint32 sx, qint32 sy, qint32 sw, qint32 sh, quint8 pressure, const QRect& dstRect)
{
if (!isChecked()) return;
KisFixedPaintDevice canvas(device->colorSpace());
canvas.setRect(QRect(dstRect.x(), dstRect.y(), sw, sh));
canvas.initialize();
device->readBytes(canvas.data(), canvas.bounds());
const KoColorSpace* cs = dab->colorSpace();
int channelCount = cs->channelCount();
quint8* dabPointer = dab->data();
quint8* canvasPointer = canvas.data();
QVector<float> cc(channelCount ), dc(channelCount );
for (int y = 0; y < sh; y++) {
for (int x = 0; x < sw; x++) {
if (cs->alpha(dabPointer) > 10 && cs->alpha(canvasPointer) > 10) {
cs->normalisedChannelsValue(canvasPointer, cc);
cs->normalisedChannelsValue(dabPointer, dc);
for (int i = 0; i < channelCount ; i++) {
dc[i] = (1.0 - 0.4 * pressure) * cc[i] + 0.4 * pressure * dc[i];
}
cs->fromNormalisedChannelsValue(dabPointer, dc);
if (x == (int)(sw / 2) && y == (int)(sh / 2))
painter->setPaintColor(KoColor(dabPointer, cs));
}
}
dabPointer += dab->pixelSize();
canvasPointer += canvas.pixelSize();
}
}
void KisAutoBrush::generateMaskAndApplyMaskOrCreateDab(KisFixedPaintDeviceSP dst,
KisBrush::ColoringInformation* coloringInformation,
double scaleX, double scaleY, double angle,
const KisPaintInformation& info,
double subPixelX , double subPixelY, qreal softnessFactor) const
{
Q_UNUSED(info);
// Generate the paint device from the mask
const KoColorSpace* cs = dst->colorSpace();
quint32 pixelSize = cs->pixelSize();
// mask dimension methods already includes KisBrush::angle()
int dstWidth = maskWidth(scaleX, angle, subPixelX, subPixelY, info);
int dstHeight = maskHeight(scaleY, angle, subPixelX, subPixelY, info);
QPointF hotSpot = this->hotSpot(scaleX, scaleY, angle, info);
// mask size and hotSpot function take the KisBrush rotation into account
angle += KisBrush::angle();
// if there's coloring information, we merely change the alpha: in that case,
// the dab should be big enough!
if (coloringInformation) {
// old bounds
QRect oldBounds = dst->bounds();
// new bounds. we don't care if there is some extra memory occcupied.
dst->setRect(QRect(0, 0, dstWidth, dstHeight));
if (dstWidth * dstHeight <= oldBounds.width() * oldBounds.height()) {
// just clear the data in dst,
memset(dst->data(), OPACITY_TRANSPARENT_U8, dstWidth * dstHeight * dst->pixelSize());
} else {
// enlarge the data
dst->initialize();
}
} else {
if (dst->data() == 0 || dst->bounds().isEmpty()) {
qWarning() << "Creating a default black dab: no coloring info and no initialized paint device to mask";
dst->clear(QRect(0, 0, dstWidth, dstHeight));
}
Q_ASSERT(dst->bounds().width() >= dstWidth && dst->bounds().height() >= dstHeight);
}
quint8* dabPointer = dst->data();
quint8* color = 0;
if (coloringInformation) {
if (dynamic_cast<PlainColoringInformation*>(coloringInformation)) {
color = const_cast<quint8*>(coloringInformation->color());
}
}
double invScaleX = 1.0 / scaleX;
double invScaleY = 1.0 / scaleY;
double centerX = hotSpot.x() - 0.5 + subPixelX;
double centerY = hotSpot.y() - 0.5 + subPixelY;
d->shape->setSoftness( softnessFactor );
if (coloringInformation) {
if (color && pixelSize == 4) {
fillPixelOptimized_4bytes(color, dabPointer, dstWidth * dstHeight);
} else if (color) {
fillPixelOptimized_general(color, dabPointer, dstWidth * dstHeight, pixelSize);
} else {
for (int y = 0; y < dstHeight; y++) {
for (int x = 0; x < dstWidth; x++) {
memcpy(dabPointer, coloringInformation->color(), pixelSize);
coloringInformation->nextColumn();
dabPointer += pixelSize;
}
coloringInformation->nextRow();
}
}
}
MaskProcessingData data(dst, cs, d->randomness, d->density,
centerX, centerY,
invScaleX, invScaleY,
angle);
KisBrushMaskApplicatorBase *applicator = d->shape->applicator();
applicator->initializeData(&data);
int jobs = d->idealThreadCountCached;
if(dstHeight > 100 && jobs >= 4) {
int splitter = dstHeight/jobs;
QVector<QRect> rects;
for(int i = 0; i < jobs - 1; i++) {
rects << QRect(0, i*splitter, dstWidth, splitter);
}
rects << QRect(0, (jobs - 1)*splitter, dstWidth, dstHeight - (jobs - 1)*splitter);
OperatorWrapper wrapper(applicator);
QtConcurrent::blockingMap(rects, wrapper);
} else {
QRect rect(0, 0, dstWidth, dstHeight);
applicator->process(rect);
}
}
void KisBrush::generateMaskAndApplyMaskOrCreateDab(KisFixedPaintDeviceSP dst,
ColoringInformation* coloringInformation,
double scaleX, double scaleY, double angle,
const KisPaintInformation& info_,
double subPixelX, double subPixelY, qreal softnessFactor) const
{
Q_ASSERT(valid());
Q_UNUSED(info_);
Q_UNUSED(softnessFactor);
angle += d->angle;
// Make sure the angle stay in [0;2*M_PI]
if (angle < 0) angle += 2 * M_PI;
if (angle > 2 * M_PI) angle -= 2 * M_PI;
scaleX *= d->scale;
scaleY *= d->scale;
double scale = 0.5 * (scaleX + scaleY);
prepareBrushPyramid();
QImage outputImage = d->brushPyramid->createImage(scale, -angle, subPixelX, subPixelY);
qint32 maskWidth = outputImage.width();
qint32 maskHeight = outputImage.height();
dst->setRect(QRect(0, 0, maskWidth, maskHeight));
dst->initialize();
quint8* color = 0;
if (coloringInformation) {
if (dynamic_cast<PlainColoringInformation*>(coloringInformation)) {
color = const_cast<quint8*>(coloringInformation->color());
}
}
const KoColorSpace *cs = dst->colorSpace();
qint32 pixelSize = cs->pixelSize();
quint8 *dabPointer = dst->data();
quint8 *rowPointer = dabPointer;
quint8 *alphaArray = new quint8[maskWidth];
bool hasColor = this->hasColor();
for (int y = 0; y < maskHeight; y++) {
#if QT_VERSION >= 0x040700
const quint8* maskPointer = outputImage.constScanLine(y);
#else
const quint8* maskPointer = outputImage.scanLine(y);
#endif
if (coloringInformation) {
for (int x = 0; x < maskWidth; x++) {
if (color) {
memcpy(dabPointer, color, pixelSize);
}
else {
memcpy(dabPointer, coloringInformation->color(), pixelSize);
coloringInformation->nextColumn();
}
dabPointer += pixelSize;
}
}
if (hasColor) {
const quint8 *src = maskPointer;
quint8 *dst = alphaArray;
for (int x = 0; x < maskWidth; x++) {
const QRgb *c = reinterpret_cast<const QRgb*>(src);
*dst = KoColorSpaceMaths<quint8>::multiply(255 - qGray(*c), qAlpha(*c));
src += 4;
dst++;
}
}
else {
const quint8 *src = maskPointer;
quint8 *dst = alphaArray;
for (int x = 0; x < maskWidth; x++) {
const QRgb *c = reinterpret_cast<const QRgb*>(src);
*dst = KoColorSpaceMaths<quint8>::multiply(255 - *src, qAlpha(*c));
src += 4;
dst++;
}
}
cs->applyAlphaU8Mask(rowPointer, alphaArray, maskWidth);
rowPointer += maskWidth * pixelSize;
dabPointer = rowPointer;
if (!color && coloringInformation) {
coloringInformation->nextRow();
}
}
delete alphaArray;
}