C++ KisPaintDeviceSP::createHLineConstIteratorNG方法代码示例

void KisSimpleNoiseReducer::processImpl(KisPaintDeviceSP device,
                                        const QRect& applyRect,
                                        const KisFilterConfiguration* config,
                                        KoUpdater* progressUpdater
                                        ) const
{
    QPoint srcTopLeft = applyRect.topLeft();
    Q_ASSERT(device);

    int threshold, windowsize;
    if (config == 0) {
        config = defaultConfiguration(device);
    }
    if (progressUpdater) {
        progressUpdater->setRange(0, applyRect.width() * applyRect.height());
    }
    int count = 0;

    threshold = config->getInt("threshold", 15);
    windowsize = config->getInt("windowsize", 1);

    const KoColorSpace* cs = device->colorSpace();

    // Compute the blur mask
    KisCircleMaskGenerator* kas = new KisCircleMaskGenerator(2*windowsize + 1, 1, windowsize, windowsize, 2);

    KisConvolutionKernelSP kernel = KisConvolutionKernel::fromMaskGenerator(kas);
    delete kas;

    KisPaintDeviceSP interm = new KisPaintDevice(*device); // TODO no need for a full copy and then a transaction
    KisConvolutionPainter painter(interm);
    painter.beginTransaction("bouuh");
    painter.applyMatrix(kernel, interm, srcTopLeft, srcTopLeft, applyRect.size(), BORDER_REPEAT);
    painter.deleteTransaction();

    if (progressUpdater && progressUpdater->interrupted()) {
        return;
    }


    KisHLineIteratorSP dstIt = device->createHLineIteratorNG(srcTopLeft.x(), srcTopLeft.y(), applyRect.width());
    KisHLineConstIteratorSP intermIt = interm->createHLineConstIteratorNG(srcTopLeft.x(), srcTopLeft.y(), applyRect.width());

    for (int j = 0; j < applyRect.height() && !(progressUpdater && progressUpdater->interrupted()); j++) {
        do {
                quint8 diff = cs->difference(dstIt->oldRawData(), intermIt->oldRawData());
                if (diff > threshold) {
                    memcpy(dstIt->rawData(), intermIt->oldRawData(), cs->pixelSize());
                }
            if (progressUpdater) progressUpdater->setValue(++count);
            intermIt->nextPixel();
        } while (dstIt->nextPixel() && !(progressUpdater && progressUpdater->interrupted()));
        dstIt->nextRow();
        intermIt->nextRow();
    }

}

void KisOilPaintFilter::OilPaint(const KisPaintDeviceSP src, KisPaintDeviceSP dst, const QPoint& srcTopLeft, const QPoint& dstTopLeft, int w, int h,
                                 int BrushSize, int Smoothness, KoUpdater* progressUpdater) const
{
    if (progressUpdater) {
        progressUpdater->setRange(0, w * h);
    }

    QRect bounds(srcTopLeft.x(), srcTopLeft.y(), w, h);

    KisHLineConstIteratorSP it = src->createHLineConstIteratorNG(srcTopLeft.x(), srcTopLeft.y(), w);
    KisHLineIteratorSP dstIt = dst->createHLineIteratorNG(dstTopLeft.x(), dstTopLeft.y(), w);

    int progress = 0;
    for (qint32 yOffset = 0; yOffset < h; yOffset++) {
        do {  //&& !cancelRequested()) {
                MostFrequentColor(src, dstIt->rawData(), bounds, it->x(), it->y(), BrushSize, Smoothness);
        }  while (it->nextPixel() && dstIt->nextPixel());
        it->nextRow();
        dstIt->nextRow();

        if (progressUpdater) progressUpdater->setValue(progress += w);
    }
}

void KisUnsharpFilter::process(KisPaintDeviceSP device,
                              const QRect& applyRect,
                              const KisFilterConfiguration* config,
                              KoUpdater* progressUpdater
                              ) const
{

    QPointer<KoUpdater> filterUpdater = 0;
    QPointer<KoUpdater> convolutionUpdater = 0;
    KoProgressUpdater* updater = 0;

    if (progressUpdater) {
        updater = new KoProgressUpdater(progressUpdater);
        updater->start();
        // Two sub-sub tasks that each go from 0 to 100.
        convolutionUpdater = updater->startSubtask();
        filterUpdater = updater->startSubtask();
    }

    if (!config) config = new KisFilterConfiguration(id().id(), 1);

    QVariant value;
    uint halfSize = (config->getProperty("halfSize", value)) ? value.toUInt() : 5;
    uint brushsize = 2 * halfSize + 1;
    double amount = (config->getProperty("amount", value)) ? value.toDouble() : 0.5;
    uint threshold = (config->getProperty("threshold", value)) ? value.toUInt() : 10;

    KisCircleMaskGenerator* kas = new KisCircleMaskGenerator(brushsize, 1, halfSize, halfSize, 2);

    KisConvolutionKernelSP kernel = KisConvolutionKernel::fromMaskGenerator(kas);

    KisPaintDeviceSP interm = new KisPaintDevice(*device);
    const KoColorSpace * cs = interm->colorSpace();
    KoConvolutionOp * convolutionOp = cs->convolutionOp();

    KisConvolutionPainter painter(interm);   // TODO no need for a full copy and then a transaction
    if (progressUpdater) {
        painter.setProgress(convolutionUpdater);
    }
    QBitArray channelFlags = config->channelFlags();
    if (channelFlags.isEmpty()) {
        channelFlags = cs->channelFlags();
    }
    painter.setChannelFlags(channelFlags);
    painter.beginTransaction("convolution step");
    painter.applyMatrix(kernel, interm, applyRect.topLeft(), applyRect.topLeft(), applyRect.size(), BORDER_REPEAT);
    painter.deleteTransaction();

    if (progressUpdater && progressUpdater->interrupted()) {
        return;
    }

    KisHLineIteratorSP dstIt = device->createHLineIteratorNG(applyRect.x(), applyRect.y(), applyRect.width());
    KisHLineConstIteratorSP intermIt = interm->createHLineConstIteratorNG(applyRect.x(), applyRect.y(), applyRect.width());

    int cdepth = cs -> pixelSize();
    quint8 *colors[2];
    colors[0] = new quint8[cdepth];
    colors[1] = new quint8[cdepth];

    int pixelsProcessed = 0;
    qreal weights[2];
    qreal factor = 128;

    // XXX: Added static cast to avoid warning
    weights[0] = static_cast<qreal>(factor * (1. + amount));
    weights[1] = static_cast<qreal>(-factor * amount);

    int steps = 100 / applyRect.width() * applyRect.height();

    for (int j = 0; j < applyRect.height(); j++) {
        do {
            quint8 diff = cs->difference(dstIt->oldRawData(), intermIt->oldRawData());
            if (diff > threshold) {
                memcpy(colors[0], dstIt->oldRawData(), cdepth);
                memcpy(colors[1], intermIt->oldRawData(), cdepth);
                convolutionOp->convolveColors(colors, weights, dstIt->rawData(), factor, 0, 2.0, channelFlags);
            } else {
                memcpy(dstIt->rawData(), dstIt->oldRawData(), cdepth);
            }
            ++pixelsProcessed;
            if (progressUpdater) filterUpdater->setProgress(steps * pixelsProcessed);
            intermIt->nextPixel();
        } while (dstIt->nextPixel());

        if (progressUpdater && progressUpdater->interrupted()) {
            return;
        }
        dstIt->nextRow();
        intermIt->nextRow();
    }
    delete colors[0];
    delete colors[1];
    delete updater;

    if (progressUpdater) progressUpdater->setProgress(100);
}

bool KisTIFFWriterVisitor::saveLayerProjection(KisLayer *layer)
{
    dbgFile << "visiting on layer" << layer->name() << "";
    KisPaintDeviceSP pd = layer->projection();
    // Save depth
    int depth = 8 * pd->pixelSize() / pd->channelCount();
    TIFFSetField(image(), TIFFTAG_BITSPERSAMPLE, depth);
    // Save number of samples
    if (m_options->alpha) {
        TIFFSetField(image(), TIFFTAG_SAMPLESPERPIXEL, pd->channelCount());
        uint16 sampleinfo[1] = { EXTRASAMPLE_UNASSALPHA };
        TIFFSetField(image(), TIFFTAG_EXTRASAMPLES, 1, sampleinfo);
    } else {
        TIFFSetField(image(), TIFFTAG_SAMPLESPERPIXEL, pd->channelCount() - 1);
        TIFFSetField(image(), TIFFTAG_EXTRASAMPLES, 0);
    }
    // Save colorspace information
    uint16 color_type;
    uint16 sample_format = SAMPLEFORMAT_UINT;
    if (!writeColorSpaceInformation(image(), pd->colorSpace(), color_type, sample_format)) { // unsupported colorspace
        return false;
    }
    TIFFSetField(image(), TIFFTAG_PHOTOMETRIC, color_type);
    TIFFSetField(image(), TIFFTAG_SAMPLEFORMAT, sample_format);
    TIFFSetField(image(), TIFFTAG_IMAGEWIDTH, layer->image()->width());
    TIFFSetField(image(), TIFFTAG_IMAGELENGTH, layer->image()->height());

    // Set the compression options
    TIFFSetField(image(), TIFFTAG_COMPRESSION, m_options->compressionType);
    TIFFSetField(image(), TIFFTAG_FAXMODE, m_options->faxMode);
    TIFFSetField(image(), TIFFTAG_JPEGQUALITY, m_options->jpegQuality);
    TIFFSetField(image(), TIFFTAG_ZIPQUALITY, m_options->deflateCompress);
    TIFFSetField(image(), TIFFTAG_PIXARLOGQUALITY, m_options->pixarLogCompress);

    // Set the predictor
    TIFFSetField(image(), TIFFTAG_PREDICTOR, m_options->predictor);

    // Use contiguous configuration
    TIFFSetField(image(), TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
    // Use 8 rows per strip
    TIFFSetField(image(), TIFFTAG_ROWSPERSTRIP, 8);

    // Save profile
    if (m_options->saveProfile) {
        const KoColorProfile* profile = pd->colorSpace()->profile();
        if (profile && profile->type() == "icc" && !profile->rawData().isEmpty()) {
            QByteArray ba = profile->rawData();
            TIFFSetField(image(), TIFFTAG_ICCPROFILE, ba.size(), ba.constData());
        }
    }
    tsize_t stripsize = TIFFStripSize(image());
    tdata_t buff = _TIFFmalloc(stripsize);
    qint32 height = layer->image()->height();
    qint32 width = layer->image()->width();
    bool r = true;
    for (int y = 0; y < height; y++) {
        KisHLineConstIteratorSP it = pd->createHLineConstIteratorNG(0, y, width);
        switch (color_type) {
        case PHOTOMETRIC_MINISBLACK: {
            quint8 poses[] = { 0, 1 };
            r = copyDataToStrips(it, buff, depth, sample_format, 1, poses);
        }
        break;
        case PHOTOMETRIC_RGB: {
            quint8 poses[4];
            if (sample_format == SAMPLEFORMAT_IEEEFP) {
                poses[2] = 2;
                poses[1] = 1;
                poses[0] = 0;
                poses[3] = 3;
            } else {
                poses[0] = 2;
                poses[1] = 1;
                poses[2] = 0;
                poses[3] = 3;
            }
            r = copyDataToStrips(it, buff, depth, sample_format, 3, poses);
        }
        break;
        case PHOTOMETRIC_SEPARATED: {
            quint8 poses[] = { 0, 1, 2, 3, 4 };
            r = copyDataToStrips(it, buff, depth, sample_format, 4, poses);
        }
        break;
        case PHOTOMETRIC_ICCLAB: {
            quint8 poses[] = { 0, 1, 2, 3 };
            r = copyDataToStrips(it, buff, depth, sample_format, 3, poses);
        }
        break;
        return false;
        }
        if (!r) return false;
        TIFFWriteScanline(image(), buff, y, (tsample_t) - 1);
    }
    _TIFFfree(buff);
    TIFFWriteDirectory(image());
    return true;
}

//.........这里部分代码省略.........
#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;

        KisRectIteratorSP dstIt = m_srcdev->createRectIteratorNG(0, 0, sw, sh);
        KisRandomSubAccessorSP srcAcc = realSourceDevice->createRandomSubAccessor();
        //Action
        do {
            QPointF p =  KisPerspectiveMath::matProd(startM, KisPerspectiveMath::matProd(endM, QPointF(dstIt->x() + x, dstIt->y() + y)) + translat);
            srcAcc->moveTo(p);
            srcAcc->sampledOldRawData(dstIt->rawData());
        } while (dstIt->nextPixel());


    } else {
        KisPainter copyPainter(m_srcdev);
        copyPainter.setCompositeOp(COMPOSITE_COPY);
        copyPainter.bitBltOldData(0, 0, realSourceDevice, srcPoint.x(), srcPoint.y(), sw, sh);
        copyPainter.end();
    }

    // heal ?

    if (m_healing) {
        quint16 srcData[4];
        quint16 tmpData[4];
        qreal* matrix = new qreal[ 3 * sw * sh ];
        // First divide
        const KoColorSpace* srcCs = realSourceDevice->colorSpace();
        const KoColorSpace* tmpCs = m_srcdev->colorSpace();
        KisHLineConstIteratorSP srcIt = realSourceDevice->createHLineConstIteratorNG(x, y, sw);
        KisHLineIteratorSP tmpIt = m_srcdev->createHLineIteratorNG(0, 0, sw);
        qreal* matrixIt = &matrix[0];
        for (int j = 0; j < sh; j++) {
            for (int i = 0; i < sw; i++) {
                srcCs->toLabA16(srcIt->oldRawData(), (quint8*)srcData, 1);
                tmpCs->toLabA16(tmpIt->rawData(), (quint8*)tmpData, 1);
                // Division
                for (int k = 0; k < 3; k++) {
                    matrixIt[k] = srcData[k] / (qreal)qMax((int)tmpData [k], 1);
                }
                srcIt->nextPixel();
                tmpIt->nextPixel();
                matrixIt += 3;
            }
            srcIt->nextRow();
            tmpIt->nextRow();
        }
        // Minimize energy
        {
            int iter = 0;
            qreal err;
            qreal* solution = new qreal [ 3 * sw * sh ];
            do {
                err = minimizeEnergy(&matrix[0], &solution[0], sw, sh);

                // swap pointers
                qreal *tmp = matrix;
                matrix = solution;
                solution = tmp;

                iter++;
            } while (err > 0.00001 && iter < 100);

void KisFilterFastColorTransfer::processImpl(KisPaintDeviceSP device,
                                             const QRect& applyRect,
                                             const KisFilterConfiguration* config,
                                             KoUpdater* progressUpdater) const
{
    Q_ASSERT(device != 0);

    dbgPlugins << "Start transferring color";

    // Convert ref and src to LAB
    const KoColorSpace* labCS = KoColorSpaceRegistry::instance()->lab16();
    if (!labCS) {
        dbgPlugins << "The LAB colorspace is not available.";
        return;
    }
    
    dbgPlugins << "convert a copy of src to lab";
    const KoColorSpace* oldCS = device->colorSpace();
    KisPaintDeviceSP srcLAB = new KisPaintDevice(*device.data());
    dbgPlugins << "srcLab : " << srcLAB->extent();
    KUndo2Command* cmd = srcLAB->convertTo(labCS, KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags());
    delete cmd;

    if (progressUpdater) {
        progressUpdater->setRange(0, 2 * applyRect.width() * applyRect.height());
    }
    int count = 0;

    // Compute the means and sigmas of src
    dbgPlugins << "Compute the means and sigmas of src";
    double meanL_src = 0., meanA_src = 0., meanB_src = 0.;
    double sigmaL_src = 0., sigmaA_src = 0., sigmaB_src = 0.;

    KisSequentialConstIterator srcIt(srcLAB, applyRect);

    do {
        const quint16* data = reinterpret_cast<const quint16*>(srcIt.oldRawData());
        quint32 L = data[0];
        quint32 A = data[1];
        quint32 B = data[2];
        meanL_src += L;
        meanA_src += A;
        meanB_src += B;
        sigmaL_src += L * L;
        sigmaA_src += A * A;
        sigmaB_src += B * B;
        if (progressUpdater) progressUpdater->setValue(++count);
    } while (srcIt.nextPixel() && !(progressUpdater && progressUpdater->interrupted()));
    
    double totalSize = 1. / (applyRect.width() * applyRect.height());
    meanL_src *= totalSize;
    meanA_src *= totalSize;
    meanB_src *= totalSize;
    sigmaL_src *= totalSize;
    sigmaA_src *= totalSize;
    sigmaB_src *= totalSize;
    
    dbgPlugins << totalSize << "" << meanL_src << "" << meanA_src << "" << meanB_src << "" << sigmaL_src << "" << sigmaA_src << "" << sigmaB_src;
    
    double meanL_ref = config->getDouble("meanL");
    double meanA_ref = config->getDouble("meanA");
    double meanB_ref = config->getDouble("meanB");
    double sigmaL_ref = config->getDouble("sigmaL");
    double sigmaA_ref = config->getDouble("sigmaA");
    double sigmaB_ref = config->getDouble("sigmaB");
    
    
    // Transfer colors
    dbgPlugins << "Transfer colors";
    {
        double coefL = sqrt((sigmaL_ref - meanL_ref * meanL_ref) / (sigmaL_src - meanL_src * meanL_src));
        double coefA = sqrt((sigmaA_ref - meanA_ref * meanA_ref) / (sigmaA_src - meanA_src * meanA_src));
        double coefB = sqrt((sigmaB_ref - meanB_ref * meanB_ref) / (sigmaB_src - meanB_src * meanB_src));
        KisHLineConstIteratorSP srcLABIt = srcLAB->createHLineConstIteratorNG(applyRect.x(), applyRect.y(), applyRect.width());
        KisHLineIteratorSP dstIt = device->createHLineIteratorNG(applyRect.x(), applyRect.y(), applyRect.width());
        quint16 labPixel[4];
        for (int y = 0; y < applyRect.height() && !(progressUpdater && progressUpdater->interrupted()); ++y) {
            do {
                const quint16* data = reinterpret_cast<const quint16*>(srcLABIt->oldRawData());
                labPixel[0] = (quint16)CLAMP(((double)data[0] - meanL_src) * coefL + meanL_ref, 0., 65535.);
                labPixel[1] = (quint16)CLAMP(((double)data[1] - meanA_src) * coefA + meanA_ref, 0., 65535.);
                labPixel[2] = (quint16)CLAMP(((double)data[2] - meanB_src) * coefB + meanB_ref, 0., 65535.);
                labPixel[3] = data[3];
                oldCS->fromLabA16(reinterpret_cast<const quint8*>(labPixel), dstIt->rawData(), 1);
                if (progressUpdater) progressUpdater->setValue(++count);
                srcLABIt->nextPixel();
            } while(dstIt->nextPixel());
            dstIt->nextRow();
            srcLABIt->nextRow();
        }

    }
}