void KisFixedPaintDeviceTest::testFill()
{
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    quint8* red = new quint8[cs->pixelSize()];
    memcpy(red, KoColor(Qt::red, cs).data(), cs->pixelSize());
    cs->setOpacity(red, quint8(128), 1);

    KisFixedPaintDeviceSP dev = new KisFixedPaintDevice(cs);
    dev->fill(0, 0, 100, 100, red);

    QVERIFY(dev->bounds() == QRect(0, 0, 100, 100));
    QVERIFY(cs->opacityU8(dev->data()) == 128);
    QVERIFY(memcmp(dev->data(), red, cs->pixelSize()) == 0);
 
    //Compare fill will normal paint device
    dev = new KisFixedPaintDevice(cs);
    dev->setRect(QRect(0, 0, 150, 150));
    dev->initialize();
    dev->fill(50, 50, 50, 50, red);
    
    KisPaintDeviceSP dev2 = new KisPaintDevice(cs);
    dev2->fill(50, 50, 50, 50, red);
    
    QImage image = dev->convertToQImage(0);
    QImage checkImage = dev2->convertToQImage(0, 0, 0, 150, 150);
    QPoint errpoint;

    if (!TestUtil::compareQImages(errpoint, image, checkImage)) {
        image.save("kis_fixed_paint_device_filled_result.png");
        checkImage.save("kis_fixed_paint_device_filled_result_expected.png");
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    } 
    
    delete[] red;
}
void KisFixedPaintDeviceTest::testSilly()
{
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisFixedPaintDeviceSP dev = new KisFixedPaintDevice(cs);
    dev->initialize();
    dev->initialize();

}
Exemple #3
0
void KisAutoBrushTest::testMaskGeneration()
{
    KisCircleMaskGenerator* circle = new KisCircleMaskGenerator(10, 1.0, 1.0, 1.0, 2, false);
    KisBrushSP a = new KisAutoBrush(circle, 0.0, 0.0);
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();

    KisPaintInformation info(QPointF(100.0, 100.0), 0.5);

    // check masking an existing paint device
    KisFixedPaintDeviceSP fdev = new KisFixedPaintDevice(cs);
    fdev->setRect(QRect(0, 0, 100, 100));
    fdev->initialize();
    cs->setOpacity(fdev->data(), OPACITY_OPAQUE_U8, 100 * 100);

    QPoint errpoint;
    QImage result(QString(FILES_DATA_DIR) + QDir::separator() + "result_autobrush_1.png");
    QImage image = fdev->convertToQImage(0);

    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("kis_autobrush_test_1.png");
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }

    // Check creating a mask dab with a single color
    fdev = new KisFixedPaintDevice(cs);
    a->mask(fdev, KoColor(Qt::black, cs), KisDabShape(), info);

    result = QImage(QString(FILES_DATA_DIR) + QDir::separator() + "result_autobrush_3.png");
    image = fdev->convertToQImage(0);
    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("kis_autobrush_test_3.png");
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }

    // Check creating a mask dab with a color taken from a paint device
    KoColor red(Qt::red, cs);
    cs->setOpacity(red.data(), quint8(128), 1);
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->fill(0, 0, 100, 100, red.data());

    fdev = new KisFixedPaintDevice(cs);
    a->mask(fdev, dev, KisDabShape(), info);

    result = QImage(QString(FILES_DATA_DIR) + QDir::separator() + "result_autobrush_4.png");
    image = fdev->convertToQImage(0);
    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("kis_autobrush_test_4.png");
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }

}
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 benchmarkSIMD(qreal fade) {
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisFixedPaintDeviceSP dev = new KisFixedPaintDevice(cs);
    dev->setRect(QRect(0, 0, 1000, 1000));
    dev->initialize();

    MaskProcessingData data(dev, cs,
                            0.0, 1.0,
                            500, 500, 0);

    KisCircleMaskGenerator gen(1000, 1.0, fade, fade, 2, false);

    KisBrushMaskApplicatorBase *applicator = gen.applicator();
    applicator->initializeData(&data);

    QVector<QRect> rects = KritaUtils::splitRectIntoPatches(dev->bounds(), QSize(63, 63));

    QBENCHMARK{
        Q_FOREACH (const QRect &rc, rects) {
            applicator->process(rc);
        }
    }
Exemple #7
0
void KisFilterOp::paintAt(const KisPaintInformation& info)
{
    if (!painter()) {
        return;
    }

    KisFilterSP filter = settings->filter();
    if (!filter) {
        return;
    }

    if (!source()) {
        return;
    }

    KisBrushSP brush = m_brush;;
    if (!brush) return;

    KisPaintInformation adjustedInfo = settings->m_optionsWidget->m_sizeOption->apply(info);
    if (! brush->canPaintFor(adjustedInfo))
        return;

    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);

    double scale = KisPaintOp::scaleForPressure(adjustedInfo.pressure());

    qint32 maskWidth = brush->maskWidth(scale, 0.0);
    qint32 maskHeight = brush->maskHeight(scale, 0.0);

    // Filter the paint device
    filter->process(KisConstProcessingInformation(source(), QPoint(x, y)),
                    KisProcessingInformation(m_tmpDevice, QPoint(0, 0)),
                    QSize(maskWidth, maskHeight),
                    settings->filterConfig(), 0);

    // Apply the mask on the paint device (filter before mask because edge pixels may be important)

    KisFixedPaintDeviceSP fixedDab = new KisFixedPaintDevice(m_tmpDevice->colorSpace());
    fixedDab->setRect(m_tmpDevice->extent());
    fixedDab->initialize();

    m_tmpDevice->readBytes(fixedDab->data(), fixedDab->bounds());
    brush->mask(fixedDab, scale, scale, 0.0, info, xFraction, yFraction);
    m_tmpDevice->writeBytes(fixedDab->data(), fixedDab->bounds());

    if (!settings->ignoreAlpha()) {
        KisHLineIteratorPixel itTmpDev = m_tmpDevice->createHLineIterator(0, 0, maskWidth);
        KisHLineIteratorPixel itSrc = source()->createHLineIterator(x, y, maskWidth);
        const KoColorSpace* cs = m_tmpDevice->colorSpace();
        for (int y = 0; y < maskHeight; ++y) {
            while (!itTmpDev.isDone()) {
                quint8 alphaTmpDev = cs->alpha(itTmpDev.rawData());
                quint8 alphaSrc = cs->alpha(itSrc.rawData());

                cs->setAlpha(itTmpDev.rawData(), qMin(alphaTmpDev, alphaSrc), 1);
                ++itTmpDev;
                ++itSrc;
            }
            itTmpDev.nextRow();
            itSrc.nextRow();
        }
    }

    // Blit the paint device onto the layer
    QRect dabRect = QRect(0, 0, maskWidth, maskHeight);
    QRect dstRect = QRect(x, y, dabRect.width(), dabRect.height());

    if (painter()->bounds().isValid()) {
        dstRect &= painter()->bounds();
    }
    if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return;

    qint32 sx = dstRect.x() - x;
    qint32 sy = dstRect.y() - y;
    qint32 sw = dstRect.width();
    qint32 sh = dstRect.height();

    painter()->bitBlt(dstRect.x(), dstRect.y(), m_tmpDevice, sx, sy, sw, sh);

}
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);
    }
}
Exemple #9
0
void KisDuplicateOp::paintAt(const KisPaintInformation& info)
{
    if (!painter()) return;

    if (!m_duplicateStartIsSet) {
        m_duplicateStartIsSet = true;
        m_duplicateStart = info.pos();
    }

    bool heal = settings->healing();

    if (!source()) return;

    KisBrushSP brush = m_brush;
    if (!brush) return;
    if (! brush->canPaintFor(info))
        return;

    double scale = KisPaintOp::scaleForPressure(info.pressure());
    QPointF hotSpot = brush->hotSpot(scale, scale);
    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);
    xFraction = yFraction = 0.0;

    QPointF srcPointF = pt - settings->offset();
    QPoint srcPoint = QPoint(x - static_cast<qint32>(settings->offset().x()),
                             y - static_cast<qint32>(settings->offset().y()));


    qint32 sw = brush->maskWidth(scale, 0.0);
    qint32 sh = brush->maskHeight(scale, 0.0);

    if (srcPoint.x() < 0)
        srcPoint.setX(0);

    if (srcPoint.y() < 0)
        srcPoint.setY(0);
    if (!(m_srcdev && !(*m_srcdev->colorSpace() == *source()->colorSpace()))) {
        m_srcdev = new KisPaintDevice(source()->colorSpace());
    }
    Q_CHECK_PTR(m_srcdev);

    // Perspective correction ?
    KisPainter copyPainter(m_srcdev);
    KisImageSP image = settings->m_image;
    if (settings->perspectiveCorrection() && image && image->perspectiveGrid()->countSubGrids() == 1) {
        Matrix3qreal startM = Matrix3qreal::Identity();
        Matrix3qreal endM = Matrix3qreal::Identity();

        // First look for the grid corresponding to the start point
        KisSubPerspectiveGrid* subGridStart = *image->perspectiveGrid()->begin();
        QRect r = QRect(0, 0, image->width(), image->height());

#if 1
        if (subGridStart) {
            startM = KisPerspectiveMath::computeMatrixTransfoFromPerspective(r, *subGridStart->topLeft(), *subGridStart->topRight(), *subGridStart->bottomLeft(), *subGridStart->bottomRight());
        }
#endif
#if 1
        // Second look for the grid corresponding to the end point
        KisSubPerspectiveGrid* subGridEnd = *image->perspectiveGrid()->begin();
        if (subGridEnd) {
            endM = KisPerspectiveMath::computeMatrixTransfoToPerspective(*subGridEnd->topLeft(), *subGridEnd->topRight(), *subGridEnd->bottomLeft(), *subGridEnd->bottomRight(), r);
        }
#endif

        // Compute the translation in the perspective transformation space:
        QPointF positionStartPaintingT = KisPerspectiveMath::matProd(endM, QPointF(m_duplicateStart));
        QPointF duplicateStartPositionT = KisPerspectiveMath::matProd(endM, QPointF(m_duplicateStart) - QPointF(settings->offset()));
        QPointF translat = duplicateStartPositionT - positionStartPaintingT;
        KisRectIteratorPixel dstIt = m_srcdev->createRectIterator(0, 0, sw, sh);
        KisRandomSubAccessorPixel srcAcc = source()->createRandomSubAccessor();
        //Action
        while (!dstIt.isDone()) {
            if (dstIt.isSelected()) {
                QPointF p =  KisPerspectiveMath::matProd(startM, KisPerspectiveMath::matProd(endM, QPointF(dstIt.x() + x, dstIt.y() + y)) + translat);
                srcAcc.moveTo(p);
                srcAcc.sampledOldRawData(dstIt.rawData());
            }
            ++dstIt;
        }


    } else {
        // Or, copy the source data on the temporary device:
        copyPainter.setCompositeOp(COMPOSITE_COPY);
        copyPainter.bitBlt(0, 0, source(), srcPoint.x(), srcPoint.y(), sw, sh);
        copyPainter.end();
    }

    // heal ?

    if (heal) {
        quint16 dataDevice[4];
        quint16 dataSrcDev[4];
        double* matrix = new double[ 3 * sw * sh ];
        // First divide
        const KoColorSpace* deviceCs = source()->colorSpace();
        KisHLineConstIteratorPixel deviceIt = source()->createHLineConstIterator(x, y, sw);
        KisHLineIteratorPixel srcDevIt = m_srcdev->createHLineIterator(0, 0, sw);
        double* matrixIt = &matrix[0];
        for (int j = 0; j < sh; j++) {
            for (int i = 0; !srcDevIt.isDone(); i++) {
                deviceCs->toLabA16(deviceIt.rawData(), (quint8*)dataDevice, 1);
                deviceCs->toLabA16(srcDevIt.rawData(), (quint8*)dataSrcDev, 1);
                // Division
                for (int k = 0; k < 3; k++) {
                    matrixIt[k] = dataDevice[k] / (double)qMax((int)dataSrcDev [k], 1);
                }
                ++deviceIt;
                ++srcDevIt;
                matrixIt += 3;
            }
            deviceIt.nextRow();
            srcDevIt.nextRow();
        }
        // Minimize energy
        {
            int iter = 0;
            double err;
            double* solution = new double [ 3 * sw * sh ];
            do {
                err = minimizeEnergy(&matrix[0], &solution[0], sw, sh);
                memcpy(&matrix[0], &solution[0], sw * sh * 3 * sizeof(double));
                iter++;
            } while (err < 0.00001 && iter < 100);
            delete [] solution;
        }

        // Finaly multiply
        deviceIt = source()->createHLineIterator(x, y, sw);
        srcDevIt = m_srcdev->createHLineIterator(0, 0, sw);
        matrixIt = &matrix[0];
        for (int j = 0; j < sh; j++) {
            for (int i = 0; !srcDevIt.isDone(); i++) {
                deviceCs->toLabA16(deviceIt.rawData(), (quint8*)dataDevice, 1);
                deviceCs->toLabA16(srcDevIt.rawData(), (quint8*)dataSrcDev, 1);
                // Multiplication
                for (int k = 0; k < 3; k++) {
                    dataSrcDev[k] = (int)CLAMP(matrixIt[k] * qMax((int) dataSrcDev[k], 1), 0, 65535);
                }
                deviceCs->fromLabA16((quint8*)dataSrcDev, srcDevIt.rawData(), 1);
                ++deviceIt;
                ++srcDevIt;
                matrixIt += 3;
            }
            deviceIt.nextRow();
            srcDevIt.nextRow();
        }
        delete [] matrix;
    }

    KisFixedPaintDeviceSP fixedDab = new KisFixedPaintDevice(m_srcdev->colorSpace());
    fixedDab->setRect(QRect(0, 0, sw, sh));
    fixedDab->initialize();

    m_srcdev->readBytes(fixedDab->data(), fixedDab->bounds());
    brush->mask(fixedDab, scale, scale, 0.0, info, xFraction, yFraction);
    m_srcdev->writeBytes(fixedDab->data(), fixedDab->bounds());

    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 (painter()->bounds().isValid()) {
        dstRect &= painter()->bounds();
    }

    if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return;

    qint32 sx = dstRect.x() - x;
    qint32 sy = dstRect.y() - y;
    sw = dstRect.width();
    sh = dstRect.height();

    painter()->bitBlt(dstRect.x(), dstRect.y(), m_srcdev, sx, sy, sw, sh);


}
void KisFixedPaintDeviceTest::testMirroring()
{
    QFETCH(QRect, rc);
    QFETCH(bool, mirrorHorizontally);
    QFETCH(bool, mirrorVertically);

    const KoColorSpace *cs = KoColorSpaceRegistry::instance()->rgb8();
    KisFixedPaintDeviceSP dev = new KisFixedPaintDevice(cs);
    dev->setRect(rc);
    dev->initialize();

    KoColor c(Qt::black, cs);

    qsrand(1);
    int value = 0;

    for (int i = rc.x(); i < rc.x() + rc.width(); i++) {
        for (int j = rc.y(); j < rc.y() + rc.height(); j++) {
            setPixel(dev, i, j, value);
            value = qrand() % 255;
        }
        value = qrand() % 255;
    }

    //dev->convertToQImage(0).save("0_a.png");
    dev->mirror(mirrorHorizontally, mirrorVertically);
    //dev->convertToQImage(0).save("0_b.png");

    int startX;
    int endX;
    int incX;

    int startY;
    int endY;
    int incY;

    if (mirrorHorizontally) {
        startX = rc.x() + rc.width() - 1;
        endX = rc.x() - 1;
        incX = -1;
    } else {
        startX = rc.x();
        endX = rc.x() + rc.width();
        incX = 1;
    }

    if (mirrorVertically) {
        startY = rc.y() + rc.height() - 1;
        endY = rc.y() - 1;
        incY = -1;
    } else {
        startY = rc.y();
        endY = rc.y() + rc.height();
        incY = 1;
    }

    qsrand(1);
    value = 0;

    for (int i = startX; i != endX ; i += incX) {
        for (int j = startY; j != endY; j += incY) {
            QCOMPARE(pixel(dev, i, j), (quint8)value);
            value = qrand() % 255;
        }
        value = qrand() % 255;
    }
}
Exemple #11
0
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;
}
Exemple #12
0
qreal KisFilterOp::paintAt(const KisPaintInformation& info)
{
    if (!painter()) {
        return 1.0;
    }

    if (!m_filter) {
        return 1.0;
    }

    if (!source()) {
        return 1.0;
    }

    KisBrushSP brush = m_brush;;
    if (!brush) return 1.0;

    if (! brush->canPaintFor(info))
        return 1.0;

    qreal scale = KisPaintOp::scaleForPressure(m_sizeOption.apply(info));
    if ((scale * brush->width()) <= 0.01 || (scale * brush->height()) <= 0.01) return spacing(scale);

    setCurrentScale(scale);
    
    QPointF hotSpot = brush->hotSpot(scale, scale);
    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;
    qreal xFraction;
    qint32 y;
    qreal yFraction;

    splitCoordinate(pt.x(), &x, &xFraction);
    splitCoordinate(pt.y(), &y, &yFraction);

    qint32 maskWidth = brush->maskWidth(scale, 0.0);
    qint32 maskHeight = brush->maskHeight(scale, 0.0);

    // Filter the paint device
    m_filter->process(KisConstProcessingInformation(source(), QPoint(x, y)),
                    KisProcessingInformation(m_tmpDevice, QPoint(0, 0)),
                    QSize(maskWidth, maskHeight),
                    m_filterConfiguration, 0);

    // Apply the mask on the paint device (filter before mask because edge pixels may be important)

    KisFixedPaintDeviceSP fixedDab = new KisFixedPaintDevice(m_tmpDevice->colorSpace());
    fixedDab->setRect(m_tmpDevice->extent());
    fixedDab->initialize();

    m_tmpDevice->readBytes(fixedDab->data(), fixedDab->bounds());
    brush->mask(fixedDab, scale, scale, 0.0, info, xFraction, yFraction);
    m_tmpDevice->writeBytes(fixedDab->data(), fixedDab->bounds());

    if (!m_ignoreAlpha) {
        KisHLineIteratorPixel itTmpDev = m_tmpDevice->createHLineIterator(0, 0, maskWidth);
        KisHLineIteratorPixel itSrc = source()->createHLineIterator(x, y, maskWidth);
        const KoColorSpace* cs = m_tmpDevice->colorSpace();
        for (int y = 0; y < maskHeight; ++y) {
            while (!itTmpDev.isDone()) {
                quint8 alphaTmpDev = cs->opacityU8(itTmpDev.rawData());
                quint8 alphaSrc = cs->opacityU8(itSrc.rawData());

                cs->setOpacity(itTmpDev.rawData(), qMin(alphaTmpDev, alphaSrc), 1);
                ++itTmpDev;
                ++itSrc;
            }
            itTmpDev.nextRow();
            itSrc.nextRow();
        }
    }

    // Blit the paint device onto the layer
    QRect dabRect = QRect(0, 0, maskWidth, maskHeight);
    QRect dstRect = QRect(x, y, dabRect.width(), dabRect.height());

    if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return 1.0;

    qint32 sx = dstRect.x() - x;
    qint32 sy = dstRect.y() - y;
    qint32 sw = dstRect.width();
    qint32 sh = dstRect.height();

    painter()->bitBlt(dstRect.x(), dstRect.y(), m_tmpDevice, sx, sy, sw, sh);
    return spacing(scale);
}