LibJPEG-turbo, version 2.0.0 | Qt GUI 5.12.4

Qt 5.12 | Qt GUI | LibJPEG-turbo, version 2.0.0

Qt 5.12.4 Reference Documentation

# LibJPEG-turbo, version 2.0.0

The Independent JPEG Group's JPEG software

Used in the qjpeg image plugin. Configure with -system-libjpeg or -no-libjpeg to avoid.

The sources can be found in tqtc-qt5/qtbase/src/3rdparty/libjpeg.

Project Homepage, upstream version: 2.0.0

      Copyright (C) 2009-2018 D. R. Commander
      Copyright (C) 2011-2016 Siarhei Siamashka
      Copyright (C) 2015-2016, 2018 Matthieu Darbois
      Copyright (C) 2015 Intel Corporation
      Copyright (C) 2015 Google, Inc.
      Copyright (C) 2013-2014 MIPS Technologies, Inc.
      Copyright (C) 2013 Linaro Limited
      Copyright (C) 2009-2011 Nokia Corporation and/or its subsidiary(-ies)
      Copyright (C) 2009 Pierre Ossman for Cendio AB
      Copyright (C) 1999-2006 MIYASAKA Masaru
      Copyright (C) 1991-2016 Thomas G. Lane, Guido Vollbeding

Independent JPEG Group License.

      libjpeg-turbo Licenses
      ======================

      libjpeg-turbo is covered by three compatible BSD-style open source licenses:

      - The IJG (Independent JPEG Group) License, which is listed in
        [README.ijg](README.ijg)

        This license applies to the libjpeg API library and associated programs
        (any code inherited from libjpeg, and any modifications to that code.)

      - The Modified (3-clause) BSD License, which is listed below

        This license covers the TurboJPEG API library and associated programs, as
        well as the build system.

      - The zlib License, which is listed below

        This license is a subset of the other two, and it covers the libjpeg-turbo
        SIMD extensions.

      Complying with the libjpeg-turbo Licenses
      =========================================

      This section provides a roll-up of the libjpeg-turbo licensing terms, to the
      best of our understanding.

      1.  If you are distributing a modified version of the libjpeg-turbo source,
          then:

          1.  You cannot alter or remove any existing copyright or license notices
              from the source.

              **Origin**
              - Clause 1 of the IJG License
              - Clause 1 of the Modified BSD License
              - Clauses 1 and 3 of the zlib License

          2.  You must add your own copyright notice to the header of each source
              file you modified, so others can tell that you modified that file (if
              there is not an existing copyright header in that file, then you can
              simply add a notice stating that you modified the file.)

              **Origin**
              - Clause 1 of the IJG License
              - Clause 2 of the zlib License

          3.  You must include the IJG README file, and you must not alter any of the
              copyright or license text in that file.

              **Origin**
              - Clause 1 of the IJG License

      2.  If you are distributing only libjpeg-turbo binaries without the source, or
          if you are distributing an application that statically links with
          libjpeg-turbo, then:

          1.  Your product documentation must include a message stating:

              This software is based in part on the work of the Independent JPEG
              Group.

              **Origin**
              - Clause 2 of the IJG license

          2.  If your binary distribution includes or uses the TurboJPEG API, then
              your product documentation must include the text of the Modified BSD
              License.

              **Origin**
              - Clause 2 of the Modified BSD License

      3.  You cannot use the name of the IJG or The libjpeg-turbo Project or the
          contributors thereof in advertising, publicity, etc.

          **Origin**
          - IJG License
          - Clause 3 of the Modified BSD License

      4.  The IJG and The libjpeg-turbo Project do not warrant libjpeg-turbo to be
          free of defects, nor do we accept any liability for undesirable
          consequences resulting from your use of the software.

          **Origin**
          - IJG License
          - Modified BSD License
          - zlib License

      The Modified (3-clause) BSD License
      ===================================

      Copyright (C)\<YEAR\> \<AUTHOR\>.  All Rights Reserved.

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

      - Redistributions of source code must retain the above copyright notice,
        this list of conditions and the following disclaimer.
      - 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.
      - Neither the name of the libjpeg-turbo Project nor the names of its
        contributors may be used to endorse or promote products derived from this
        software without specific prior written permission.

      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDERS OR CONTRIBUTORS 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.

      The zlib License
      ================

      Copyright (C) \<YEAR\>, \<AUTHOR\>.

      This software is provided 'as-is', without any express or implied
      warranty.  In no event will the authors be held liable for any damages
      arising from the use of this software.

      Permission is granted to anyone to use this software for any purpose,
      including commercial applications, and to alter it and redistribute it
      freely, subject to the following restrictions:

      1. The origin of this software must not be misrepresented; you must not
         claim that you wrote the original software. If you use this software
         in a product, an acknowledgment in the product documentation would be
         appreciated but is not required.
      2. Altered source versions must be plainly marked as such, and must not be
         misrepresented as being the original software.
      3. This notice may not be removed or altered from any source distribution.

      Why Three Licenses?
      ===================

      The zlib License could have been used instead of the Modified (3-clause) BSD
      License, and since the IJG License effectively subsumes the distribution
      conditions of the zlib License, this would have effectively placed
      libjpeg-turbo binary distributions under the IJG License.  However, the IJG
      License specifically refers to the Independent JPEG Group and does not extend
      attribution and endorsement protections to other entities.  Thus, it was
      desirable to choose a license that granted us the same protections for new code
      that were granted to the IJG for code derived from their software.