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  1. Qt
  2. QTBUG-80538

QImageReader fails to load large (over 4GB) tiff file

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P3: Somewhat important P3: Somewhat important
    • 5.15.0 Alpha
    • 5.13.2
    • Image formats
    • None
    • 6124b900d9507687c21e43e68f495bbee9d8d45b (qt/qtimageformats/5.15)

      QImage fails to load large tiff files, over 4GB.

      The system libtiff (4.0.9 from Ubuntu 18.04) opens the same file successfully:

       

      TIFF* tif = TIFFOpen(fn, "r");
if (tif) {
        uint32 w, h;
        TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
        TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
        m_fullImage = QImage(w, h, QImage::Format_RGBA8888);
        TIFFReadRGBAImage(tif, w, h, (uint32 *)m_fullImage.bits(), 0);
        TIFFClose(tif);
}

       

        1. image.tiff.bz2
          4 kB
          Dmytro Poplavskiy
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            vgt Eirik Aavitsland
            dmytro.poplavskiy Dmytro Poplavskiy
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              Created:
              Updated:
              Resolved:

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