Method Magick2QImage

src/MagickUtilities.cpp:45–71

Get pointer to QImage conversion of a Magick::Image

// Get pointer to QImage conversion of a Magick::Image
std::shared_ptr<QImage>
openshot::Magick2QImage(std::shared_ptr<Magick::Image> image)
{
    if (!image)
        return nullptr;

    const int BPP = 4;
    const std::size_t size = image->columns() * image->rows() * BPP;

    auto* qbuffer = new unsigned char[size]();

    MagickCore::ExceptionInfo exception;
    // TODO: Actually do something, if we get an exception here
    MagickCore::ExportImagePixels(
        image->constImage(), 0, 0,
        image->columns(), image->rows(),
        "RGBA", Magick::CharPixel,
        qbuffer, &exception);

    auto qimage = std::make_shared<QImage>(
        qbuffer, image->columns(), image->rows(),
        image->columns() * BPP,
        QImage::Format_RGBA8888_Premultiplied,
        (QImageCleanupFunction) &openshot::cleanUpBuffer,
        (void*) qbuffer);
    return qimage;
}

#endif  // USE_IMAGEMAGICK