Smooth Scaling Algorithm

Normal smoothscale method, based on Imlib2's smoothscale.

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

The sources can be found in tqtc-qt5/qtbase/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.