dll/3rdparty/libpng/docs/LICENSE

   1 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
   2 =========================================
   3
   4 PNG Reference Library License version 2
   5 ---------------------------------------
   6
   7  * Copyright (c) 1995-2018 The PNG Reference Library Authors.
   8  * Copyright (c) 2018 Cosmin Truta.
   9  * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  10  * Copyright (c) 1996-1997 Andreas Dilger.
  11  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
  12
  13 The software is supplied "as is", without warranty of any kind,
  14 express or implied, including, without limitation, the warranties
  15 of merchantability, fitness for a particular purpose, title, and
  16 non-infringement.  In no even shall the Copyright owners, or
  17 anyone distributing the software, be liable for any damages or
  18 other liability, whether in contract, tort or otherwise, arising
  19 from, out of, or in connection with the software, or the use or
  20 other dealings in the software, even if advised of the possibility
  21 of such damage.
  22
  23 Permission is hereby granted to use, copy, modify, and distribute
  24 this software, or portions hereof, for any purpose, without fee,
  25 subject to the following restrictions:
  26
  27  1. The origin of this software must not be misrepresented; you
  28     must not claim that you wrote the original software.  If you
  29     use this software in a product, an acknowledgment in the product
  30     documentation would be appreciated, but is not required.
  31
  32  2. Altered source versions must be plainly marked as such, and must
  33     not be misrepresented as being the original software.
  34
  35  3. This Copyright notice may not be removed or altered from any
  36     source or altered source distribution.
  37
  38
  39 PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
  40 -----------------------------------------------------------------------
  41
  42 libpng versions 1.0.7, July 1, 2000 through 1.6.35, July 15, 2018 are
  43 Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
  44 derived from libpng-1.0.6, and are distributed according to the same
  45 disclaimer and license as libpng-1.0.6 with the following individuals
  46 added to the list of Contributing Authors:
  47
  48     Simon-Pierre Cadieux
  49     Eric S. Raymond
  50     Mans Rullgard
  51     Cosmin Truta
  52     Gilles Vollant
  53     James Yu
  54     Mandar Sahastrabuddhe
  55     Google Inc.
  56     Vadim Barkov
  57
  58 and with the following additions to the disclaimer:
  59
  60     There is no warranty against interference with your enjoyment of
  61     the library or against infringement.  There is no warranty that our
  62     efforts or the library will fulfill any of your particular purposes
  63     or needs.  This library is provided with all faults, and the entire
  64     risk of satisfactory quality, performance, accuracy, and effort is
  65     with the user.
  66
  67 Some files in the "contrib" directory and some configure-generated
  68 files that are distributed with libpng have other copyright owners, and
  69 are released under other open source licenses.
  70
  71 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
  72 Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
  73 libpng-0.96, and are distributed according to the same disclaimer and
  74 license as libpng-0.96, with the following individuals added to the
  75 list of Contributing Authors:
  76
  77     Tom Lane
  78     Glenn Randers-Pehrson
  79     Willem van Schaik
  80
  81 libpng versions 0.89, June 1996, through 0.96, May 1997, are
  82 Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
  83 and are distributed according to the same disclaimer and license as
  84 libpng-0.88, with the following individuals added to the list of
  85 Contributing Authors:
  86
  87     John Bowler
  88     Kevin Bracey
  89     Sam Bushell
  90     Magnus Holmgren
  91     Greg Roelofs
  92     Tom Tanner
  93
  94 Some files in the "scripts" directory have other copyright owners,
  95 but are released under this license.
  96
  97 libpng versions 0.5, May 1995, through 0.88, January 1996, are
  98 Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
  99
 100 For the purposes of this copyright and license, "Contributing Authors"
 101 is defined as the following set of individuals:
 102
 103     Andreas Dilger
 104     Dave Martindale
 105     Guy Eric Schalnat
 106     Paul Schmidt
 107     Tim Wegner
 108
 109 The PNG Reference Library is supplied "AS IS".  The Contributing
 110 Authors and Group 42, Inc. disclaim all warranties, expressed or
 111 implied, including, without limitation, the warranties of
 112 merchantability and of fitness for any purpose.  The Contributing
 113 Authors and Group 42, Inc. assume no liability for direct, indirect,
 114 incidental, special, exemplary, or consequential damages, which may
 115 result from the use of the PNG Reference Library, even if advised of
 116 the possibility of such damage.
 117
 118 Permission is hereby granted to use, copy, modify, and distribute this
 119 source code, or portions hereof, for any purpose, without fee, subject
 120 to the following restrictions:
 121
 122  1. The origin of this source code must not be misrepresented.
 123
 124  2. Altered versions must be plainly marked as such and must not
 125     be misrepresented as being the original source.
 126
 127  3. This Copyright notice may not be removed or altered from any
 128     source or altered source distribution.
 129
 130 The Contributing Authors and Group 42, Inc. specifically permit,
 131 without fee, and encourage the use of this source code as a component
 132 to supporting the PNG file format in commercial products.  If you use
 133 this source code in a product, acknowledgment is not required but would
 134 be appreciated.