Exemplos de QuillImage::constScanLine em C++ (Cpp)

Exemplo n.º 1

Arquivo: tiltshift.cpp Projeto: Igalia/gallery-tiltshift-plugin

QuillImage TiltShift::apply(const QuillImage& image) const
{
    if (image.isNull()) {
        return image;
    }
    if (image.isFragment()) {
        m_gaussianFilter->setOption(QuillImageFilter::Radius, QVariant(GAUSSIAN_BLUR_RADIUS_TILE));
    } else if (image.size() == QSize(170, 170)) {
        m_gaussianFilter->setOption(QuillImageFilter::Radius, QVariant(GAUSSIAN_BLUR_RADIUS_THUMBNAIL));
    } else {
        m_gaussianFilter->setOption(QuillImageFilter::Radius, QVariant(GAUSSIAN_BLUR_RADIUS_PREVIEW));
    }
    QuillImage blurredImage = m_gaussianFilter->apply(image);

    float** mask = maskImage(image);
    QImage resultImage(image.size(), QImage::Format_RGB32);

    for (int y=0; y<image.height(); y++) {
        const QRgb* originalPixelRow = (const QRgb*)image.constScanLine(y);
        const QRgb* blurredPixelRow = (const QRgb*)blurredImage.constScanLine(y);
        QRgb* resultPixelRow = (QRgb*)resultImage.scanLine(y);

        for (int x=0; x<image.width(); x++) {
            int red = qRed(originalPixelRow[x]) * mask[x][y] + qRed(blurredPixelRow[x]) * (1 - mask[x][y]);
            int blue = qBlue(originalPixelRow[x]) * mask[x][y] + qBlue(blurredPixelRow[x]) * (1 - mask[x][y]);
            int green = qGreen(originalPixelRow[x]) * mask[x][y] + qGreen(blurredPixelRow[x]) * (1 - mask[x][y]);
            QColor result(red, green, blue);
            result.setHsvF(result.hueF(), qMin(SATURATION_FACTOR * result.saturationF(), 1.0), result.valueF());

            resultPixelRow[x] = result.rgb();
        }
    }

    for (int i = 0; i < image.size().width(); i ++) {
        delete[] mask[i];
    }

    delete[] mask;

    return QuillImage(image, resultImage);
}