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  1. Qt
  2. QTBUG-91223

qt_memrotate270, qt_memrotate180 , qt_memrotate90, segfaults

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    Details

    • Platform/s:
      Linux/X11
    • Commits:
      8daa94431341afece6beb052e6224d215f8507b7 (qt/qtbase/dev) 2d32e38e3a4d8704f5543315382f3ea2803256a0 (qt/qtbase/6.1) 20e5aba3b9376c2b233ea595b56d0049d7bf9508 (qt/qtbase/5.12) 774f4542edb86373917b26ec6ce58bb574d1973a (qt/qtbase/6.0)

      Description

      qt_memrotate270, qt_memrotate180 segfault when trying to rotate images loaded from .tif file.

       The following code segfaults

      QApplication app(argc, argv);
      QImageReader reader(argv[1]);
      QImage image;
      QPixmap pixmap;
      QTransform transform;

      reader.setAutoTransform(false);
      image = reader.read();
      transform.rotate(90); // segfault at 90, 180, 270, okay if 89.99
      image = image.transformed(transform);
      pixmap.convertFromImage(image);

      However, changing rotate to 89.99 works fine since it does not seem to call qt_memrotate270

      #0 0x00007f523881e0a3 in qt_memrotate270(unsigned int const*, int, int, int, unsigned int*, int) () from /lib64/libQt5Gui.so.5
      #1 0x00007f523867c5e5 in rotated90(QImage const&) () from /lib64/libQt5Gui.so.5
      #2 0x00007f523867cc83 in QImage::transformed(QTransform const&, Qt::TransformationMode) const () from /lib64/libQt5Gui.so.5
      #3 0x0000000000402381 in main (argc=2, argv=0x7ffe2b35ff18) at /home/robinson/Workspace/dsplib/core/src/ui/TiffViewerMain.cpp:19
      #4 0x00007f52379f71e2 in __libc_start_main () from /lib64/libc.so.6
      #5 0x000000000040217e in _start ()

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            Assignee:
            vgt Eirik Aavitsland
            Reporter:
            jiggersplat Dan Robinson
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              Dates

              Created:
              Updated:
              Resolved:

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