//#define SAVE_OUTPUT_IMAGES
void KisAutoBrushTest::testCopyMasking()
{
int w = 64;
int h = 64;
int x = 0;
int y = 0;
QRect rc(x, y, w, h);
const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
KoColor black(Qt::black, cs);
KoColor red(Qt::red, cs);
KisPaintDeviceSP tempDev = new KisPaintDevice(cs);
tempDev->fill(0, 0, w, h, red.data());
#ifdef SAVE_OUTPUT_IMAGES
tempDev->convertToQImage(0).save("tempDev.png");
#endif
KisCircleMaskGenerator * mask = new KisCircleMaskGenerator(w, 1.0, 0.5, 0.5, 2, true);
KisAutoBrush brush(mask, 0, 0);
KisFixedPaintDeviceSP maskDab = new KisFixedPaintDevice(cs);
brush.mask(maskDab, black, KisDabShape(), KisPaintInformation());
maskDab->convertTo(KoColorSpaceRegistry::instance()->alpha8());
#ifdef SAVE_OUTPUT_IMAGES
maskDab->convertToQImage(0, 0, 0, 64, 64).save("maskDab.png");
#endif
QCOMPARE(tempDev->exactBounds(), rc);
QCOMPARE(maskDab->bounds(), rc);
KisFixedPaintDeviceSP dev2fixed = new KisFixedPaintDevice(cs);
dev2fixed->setRect(rc);
dev2fixed->initialize();
tempDev->readBytes(dev2fixed->data(), rc);
dev2fixed->convertToQImage(0).save("converted-tempDev-to-fixed.png");
KisPaintDeviceSP dev = new KisPaintDevice(cs);
KisPainter painter(dev);
painter.setCompositeOp(COMPOSITE_COPY);
painter.bltFixedWithFixedSelection(x, y, dev2fixed, maskDab, 0, 0, 0, 0, rc.width(), rc.height());
//painter.bitBltWithFixedSelection(x, y, tempDev, maskDab, 0, 0, 0, 0, rc.width(), rc.height());
#ifdef SAVE_OUTPUT_IMAGES
dev->convertToQImage(0).save("final.png");
#endif
}
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 KisSmudgeOp::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());
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);
KisFixedPaintDeviceSP dab = 0;
double scale = KisPaintOp::scaleForPressure(adjustedInfo.pressure());
QRect dabRect = QRect(0, 0, brush->maskWidth(scale, 0.0), brush->maskHeight(scale, 0.0));
QRect dstRect = QRect(x, y, dabRect.width(), dabRect.height());
if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return;
if (brush->brushType() == IMAGE || brush->brushType() == PIPE_IMAGE) {
dab = brush->image(device->colorSpace(), pScale, 0.0, adjustedInfo, xFraction, yFraction);
dab->convertTo(KoColorSpaceRegistry::instance()->alpha8());
} else {
dab = cachedDab();
KoColor color = painter()->paintColor();
dab->convertTo(KoColorSpaceRegistry::instance()->alpha8());
brush->mask(dab, color, scale, pScale, 0.0, info, xFraction, yFraction);
}
qint32 sw = dab->bounds().width();
qint32 sh = dab->bounds().height();
/* To smudge, one does the following:
* at first, initialize a temporary paint device with a copy of the original (dab-sized piece, really).
* all other times:
reduce the transparency of the temporary paint device so as to let it mix gradually
* combine the temp device with the piece the brush currently is 'painting', according to a mix (opacity)
note that in the first step, this does the actual copying of the data
* this combination is then composited upon the actual image
TODO: what happened exactly in 1.6 (and should happen now) when the dab resizes halfway due to pressure?
*/
int opacity = OPACITY_OPAQUE;
if (!m_firstRun) {
opacity = settings->m_optionsWidget->m_rateOption->apply( opacity, sw, sh, m_srcdev, info.pressure() );
KisRectIterator it = m_srcdev->createRectIterator(0, 0, sw, sh);
KoColorSpace* cs = m_srcdev->colorSpace();
while(!it.isDone()) {
cs->setAlpha(it.rawData(), (cs->alpha(it.rawData()) * opacity) / OPACITY_OPAQUE, 1);
++it;
}
opacity = OPACITY_OPAQUE - opacity;
} else {
m_firstRun = false;
}
KisPainter copyPainter(m_srcdev);
copyPainter.setOpacity(opacity);
copyPainter.bitBlt(0, 0, device, pt.x(), pt.y(), sw, sh);
copyPainter.end();
m_target = new KisPaintDevice(device->colorSpace());
// Looks hacky, but we lost bltMask, or the ability to easily convert alpha8 paintdev to selection?
KisSelectionSP dabAsSelection = new KisSelection();
copyPainter.begin(dabAsSelection);
copyPainter.setOpacity(OPACITY_OPAQUE);
copyPainter.setCompositeOp(COMPOSITE_COPY);
copyPainter.bltFixed(0, 0, dab, 0, 0, sw, sh);
copyPainter.end();
copyPainter.begin(m_target);
copyPainter.setCompositeOp(COMPOSITE_OVER);
copyPainter.setSelection(dabAsSelection);
copyPainter.bitBlt(0, 0, m_srcdev, 0, 0, sw, sh);
copyPainter.end();
qint32 sx = dstRect.x() - x;
qint32 sy = dstRect.y() - y;
sw = dstRect.width();
sh = dstRect.height();
painter()->bitBlt(dstRect.x(), dstRect.y(), m_target, sx, sy, sw, sh);
}