Qt 5.11 | Qt GUI | Smooth Scaling Algorithm

Qt 5.11.3 Reference Documentation

# Smooth Scaling Algorithm

Normal smoothscale method, based on Imlib2's smoothscale.

Used in Qt Gui (QImage::transformed() functions).

The sources can be found in work/qtbase-everywhere-src-5.11.3/src/gui/painting/qimagescale.cpp.

      Copyright (C) 2004, 2005 Daniel M. Duley.
          (C) Carsten Haitzler and various contributors.
          (C) Willem Monsuwe <willem@stack.nl>

BSD 2-clause "Simplified" License and Imlib2 License.

      qimagetransform.cpp was contributed by Daniel M. Duley based on code from Imlib2.

      Copyright (C) 2004, 2005 Daniel M. Duley

      Redistribution and use in source and binary forms, with or without
      modification, are permitted provided that the following conditions
      are met:

      1. Redistributions of source code must retain the above copyright
         notice, this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in the
         documentation and/or other materials provided with the distribution.

      THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

      Imlib2 License

      Copyright (C) 2000 Carsten Haitzler and various contributors (see
      AUTHORS)

      Permission is hereby granted, free of charge, to any person obtaining a
      copy of this software and associated documentation files (the
      "Software"), to deal in the Software without restriction, including
      without limitation the rights to use, copy, modify, merge, publish,
      distribute, sublicense, and/or sell copies of the Software, and to
      permit persons to whom the Software is furnished to do so, subject to
      the following conditions:

      The above copyright notice and this permission notice shall be included
      in all copies of the Software and its Copyright notices. In addition
      publicly documented acknowledgment must be given that this software has
      been used if no source code of this software is made available publicly.
      This includes acknowledgments in either Copyright notices, Manuals,
      Publicity and Marketing documents or any documentation provided with any
      product containing this software. This License does not apply to any
      software that links to the libraries provided by this software
      (statically or dynamically), but only to the software provided.

      Please see the COPYING.PLAIN for a plain-english explanation of this
      notice and it's intent.

      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
      MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
      IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      DEALINGS IN THE SOFTWARE.