/* png.h - header file for PNG reference library * * libpng version 1.6.31, July 27, 2017 * * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * * This code is released under the libpng license (See LICENSE, below) * * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.97, January 1998, through 1.6.31, July 27, 2017: * Glenn Randers-Pehrson. * See also "Contributing Authors", below. */ /* * COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: * * If you modify libpng you may insert additional notices immediately following * this sentence. * * This code is released under the libpng license. * * libpng versions 1.0.7, July 1, 2000 through 1.6.31, July 27, 2017 are * Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are * derived from libpng-1.0.6, and are distributed according to the same * disclaimer and license as libpng-1.0.6 with the following individuals * added to the list of Contributing Authors: * * Simon-Pierre Cadieux * Eric S. Raymond * Mans Rullgard * Cosmin Truta * Gilles Vollant * James Yu * Mandar Sahastrabuddhe * Google Inc. * Vadim Barkov * * and with the following additions to the disclaimer: * * There is no warranty against interference with your enjoyment of the * library or against infringement. There is no warranty that our * efforts or the library will fulfill any of your particular purposes * or needs. This library is provided with all faults, and the entire * risk of satisfactory quality, performance, accuracy, and effort is with * the user. * * Some files in the "contrib" directory and some configure-generated * files that are distributed with libpng have other copyright owners and * are released under other open source licenses. * * libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are * Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from * libpng-0.96, and are distributed according to the same disclaimer and * license as libpng-0.96, with the following individuals added to the list * of Contributing Authors: * * Tom Lane * Glenn Randers-Pehrson * Willem van Schaik * * libpng versions 0.89, June 1996, through 0.96, May 1997, are * Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88, * and are distributed according to the same disclaimer and license as * libpng-0.88, with the following individuals added to the list of * Contributing Authors: * * John Bowler * Kevin Bracey * Sam Bushell * Magnus Holmgren * Greg Roelofs * Tom Tanner * * Some files in the "scripts" directory have other copyright owners * but are released under this license. * * libpng versions 0.5, May 1995, through 0.88, January 1996, are * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * * For the purposes of this copyright and license, "Contributing Authors" * is defined as the following set of individuals: * * Andreas Dilger * Dave Martindale * Guy Eric Schalnat * Paul Schmidt * Tim Wegner * * The PNG Reference Library is supplied "AS IS". The Contributing Authors * and Group 42, Inc. disclaim all warranties, expressed or implied, * including, without limitation, the warranties of merchantability and of * fitness for any purpose. The Contributing Authors and Group 42, Inc. * assume no liability for direct, indirect, incidental, special, exemplary, * or consequential damages, which may result from the use of the PNG * Reference Library, even if advised of the possibility of such damage. * * Permission is hereby granted to use, copy, modify, and distribute this * source code, or portions hereof, for any purpose, without fee, subject * to the following restrictions: * * 1. The origin of this source code must not be misrepresented. * * 2. Altered versions must be plainly marked as such and must not * be misrepresented as being the original source. * * 3. This Copyright notice may not be removed or altered from any * source or altered source distribution. * * The Contributing Authors and Group 42, Inc. specifically permit, without * fee, and encourage the use of this source code as a component to * supporting the PNG file format in commercial products. If you use this * source code in a product, acknowledgment is not required but would be * appreciated. * * END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE. * * TRADEMARK: * * The name "libpng" has not been registered by the Copyright owner * as a trademark in any jurisdiction. However, because libpng has * been distributed and maintained world-wide, continually since 1995, * the Copyright owner claims "common-law trademark protection" in any * jurisdiction where common-law trademark is recognized. * * OSI CERTIFICATION: * * Libpng is OSI Certified Open Source Software. OSI Certified Open Source is * a certification mark of the Open Source Initiative. OSI has not addressed * the additional disclaimers inserted at version 1.0.7. * * EXPORT CONTROL: * * The Copyright owner believes that the Export Control Classification * Number (ECCN) for libpng is EAR99, which means not subject to export * controls or International Traffic in Arms Regulations (ITAR) because * it is open source, publicly available software, that does not contain * any encryption software. See the EAR, paragraphs 734.3(b)(3) and * 734.7(b).