diff options
Diffstat (limited to 'src/3rdparty/libpng/png.h')
| -rw-r--r-- | src/3rdparty/libpng/png.h | 303 |
1 files changed, 136 insertions, 167 deletions
diff --git a/src/3rdparty/libpng/png.h b/src/3rdparty/libpng/png.h index 19e464cc17..8e272a0553 100644 --- a/src/3rdparty/libpng/png.h +++ b/src/3rdparty/libpng/png.h @@ -1,29 +1,65 @@ /* png.h - header file for PNG reference library * - * libpng version 1.6.35, July 15, 2018 + * libpng version 1.6.36 - December 1, 2018 * + * Copyright (c) 2018 Cosmin Truta * Copyright (c) 1998-2002,2004,2006-2018 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.) + * Copyright (c) 1996-1997 Andreas Dilger + * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. * - * This code is released under the libpng license (See LICENSE, below) + * 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 1.6.35, July 15, 2018: + * libpng versions 0.97, January 1998, through 1.6.35, July 2018: * Glenn Randers-Pehrson. + * libpng version 1.6.36, December 1, 2018: Cosmin Truta * See also "Contributing Authors", below. */ /* - * COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: + * COPYRIGHT NOTICE, DISCLAIMER, and LICENSE + * ========================================= + * + * PNG Reference Library License version 2 + * --------------------------------------- + * + * * Copyright (c) 1995-2018 The PNG Reference Library Authors. + * * Copyright (c) 2018 Cosmin Truta. + * * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson. + * * Copyright (c) 1996-1997 Andreas Dilger. + * * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc. + * + * The software is supplied "as is", without warranty of any kind, + * express or implied, including, without limitation, the warranties + * of merchantability, fitness for a particular purpose, title, and + * non-infringement. In no even shall the Copyright owners, or + * anyone distributing the software, be liable for any damages or + * other liability, whether in contract, tort or otherwise, arising + * from, out of, or in connection with the software, or the use or + * other dealings in the software, even if advised of the possibility + * of such damage. + * + * Permission is hereby granted to use, copy, modify, and distribute + * this software, or portions hereof, for any purpose, without fee, + * subject to the following restrictions: * - * If you modify libpng you may insert additional notices immediately following - * this sentence. + * 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. * - * This code is released under the libpng license. + * 2. Altered source versions must be plainly marked as such, and must + * not be misrepresented as being the original software. + * + * 3. This Copyright notice may not be removed or altered from any + * source or altered source distribution. + * + * + * PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35) + * ----------------------------------------------------------------------- * * libpng versions 1.0.7, July 1, 2000 through 1.6.35, July 15, 2018 are * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are @@ -31,38 +67,38 @@ * 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 + * 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. + * 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 + * 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: + * license as libpng-0.96, with the following individuals added to the + * list of Contributing Authors: * - * Tom Lane - * Glenn Randers-Pehrson - * Willem van Schaik + * 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, @@ -70,14 +106,14 @@ * 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 + * John Bowler + * Kevin Bracey + * Sam Bushell + * Magnus Holmgren + * Greg Roelofs + * Tom Tanner * - * Some files in the "scripts" directory have other copyright owners + * 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 @@ -86,62 +122,49 @@ * 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. + * 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. + * 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. + * 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. + * 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. + * 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: + * TRADEMARK + * ========= * - * The name "libpng" has not been registered by the Copyright owner + * The name "libpng" has not been registered by the Copyright owners * 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 + * the Copyright owners claim "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). */ /* @@ -207,23 +230,25 @@ * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible) * 1.0.7 1 10007 (still compatible) * ... - * 1.0.19 10 10019 10.so.0.19[.0] + * 1.0.69 10 10069 10.so.0.69[.0] * ... - * 1.2.59 13 10257 12.so.0.59[.0] + * 1.2.59 13 10259 12.so.0.59[.0] * ... - * 1.5.30 15 10527 15.so.15.30[.0] + * 1.4.20 14 10420 14.so.0.20[.0] * ... - * 1.6.35 16 10635 16.so.16.35[.0] - * - * Henceforth the source version will match the shared-library major - * and minor numbers; the shared-library major version number will be - * used for changes in backward compatibility, as it is intended. The - * PNG_LIBPNG_VER macro, which is not used within libpng but is available - * for applications, is an unsigned integer of the form xyyzz corresponding - * to the source version x.y.z (leading zeros in y and z). Beta versions - * were given the previous public release number plus a letter, until - * version 1.0.6j; from then on they were given the upcoming public - * release number plus "betaNN" or "rcNN". + * 1.5.30 15 10530 15.so.15.30[.0] + * ... + * 1.6.36 16 10636 16.so.16.36[.0] + * + * Henceforth the source version will match the shared-library major and + * minor numbers; the shared-library major version number will be used for + * changes in backward compatibility, as it is intended. + * The PNG_LIBPNG_VER macro, which is not used within libpng but is + * available for applications, is an unsigned integer of the form XYYZZ + * corresponding to the source version X.Y.Z (leading zeros in Y and Z). + * Beta versions were given the previous public release number plus a + * letter, until version 1.0.6j; from then on they were given the upcoming + * public release number plus "betaNN" or "rcNN". * * Binary incompatibility exists only when applications make direct access * to the info_ptr or png_ptr members through png.h, and the compiled @@ -233,65 +258,8 @@ * in binary compatibility (e.g., when a new feature is added). * * See libpng.txt or libpng.3 for more information. The PNG specification - * is available as a W3C Recommendation and as an ISO Specification, - * <https://www.w3.org/TR/2003/REC-PNG-20031110/ - */ - -/* - * Y2K compliance in libpng: - * ========================= - * - * July 15, 2018 - * - * Since the PNG Development group is an ad-hoc body, we can't make - * an official declaration. - * - * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.6.35 are Y2K compliant. It is my belief that - * earlier versions were also Y2K compliant. - * - * Libpng only has two year fields. One is a 2-byte unsigned integer - * that will hold years up to 65535. The other, which is deprecated, - * holds the date in text format, and will hold years up to 9999. - * - * The integer is - * "png_uint_16 year" in png_time_struct. - * - * The string is - * "char time_buffer[29]" in png_struct. This is no longer used - * in libpng-1.6.x and will be removed from libpng-1.7.0. - * - * There are seven time-related functions: - * png.c: png_convert_to_rfc_1123_buffer() in png.c - * (formerly png_convert_to_rfc_1123() prior to libpng-1.5.x and - * png_convert_to_rfc_1152() in error prior to libpng-0.98) - * png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c - * png_convert_from_time_t() in pngwrite.c - * png_get_tIME() in pngget.c - * png_handle_tIME() in pngrutil.c, called in pngread.c - * png_set_tIME() in pngset.c - * png_write_tIME() in pngwutil.c, called in pngwrite.c - * - * All handle dates properly in a Y2K environment. The - * png_convert_from_time_t() function calls gmtime() to convert from system - * clock time, which returns (year - 1900), which we properly convert to - * the full 4-digit year. There is a possibility that libpng applications - * are not passing 4-digit years into the png_convert_to_rfc_1123_buffer() - * function, or that they are incorrectly passing only a 2-digit year - * instead of "year - 1900" into the png_convert_from_struct_tm() function, - * but this is not under our control. The libpng documentation has always - * stated that it works with 4-digit years, and the APIs have been - * documented as such. - * - * The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned - * integer to hold the year, and can hold years as large as 65535. - * - * zlib, upon which libpng depends, is also Y2K compliant. It contains - * no date-related code. - * - * Glenn Randers-Pehrson - * libpng maintainer - * PNG Development Group + * is available as a W3C Recommendation and as an ISO/IEC Standard; see + * <https://www.w3.org/TR/2003/REC-PNG-20031110/> */ #ifndef PNG_H @@ -309,8 +277,8 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.6.35" -#define PNG_HEADER_VERSION_STRING " libpng version 1.6.35 - July 15, 2018\n" +#define PNG_LIBPNG_VER_STRING "1.6.36" +#define PNG_HEADER_VERSION_STRING " libpng version 1.6.36 - December 1, 2018\n" #define PNG_LIBPNG_VER_SONUM 16 #define PNG_LIBPNG_VER_DLLNUM 16 @@ -318,13 +286,13 @@ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MINOR 6 -#define PNG_LIBPNG_VER_RELEASE 35 +#define PNG_LIBPNG_VER_RELEASE 36 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ -#define PNG_LIBPNG_VER_BUILD 02 +#define PNG_LIBPNG_VER_BUILD 0 /* Release Status */ #define PNG_LIBPNG_BUILD_ALPHA 1 @@ -341,15 +309,16 @@ #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with PNG_LIBPNG_BUILD_PRIVATE */ -#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_BETA +#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE -/* Careful here. At one time, Guy wanted to use 082, but that would be octal. - * We must not include leading zeros. - * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only - * version 1.0.0 was mis-numbered 100 instead of 10000). From - * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release +/* Careful here. At one time, Guy wanted to use 082, but that + * would be octal. We must not include leading zeros. + * Versions 0.7 through 1.0.0 were in the range 0 to 100 here + * (only version 1.0.0 was mis-numbered 100 instead of 10000). + * From version 1.0.1 it is: + * XXYYZZ, where XX=major, YY=minor, ZZ=release */ -#define PNG_LIBPNG_VER 10635 /* 1.6.35 */ +#define PNG_LIBPNG_VER 10636 /* 1.6.36 */ /* Library configuration: these options cannot be changed after * the library has been built. @@ -459,7 +428,7 @@ extern "C" { /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ -typedef char* png_libpng_version_1_6_35; +typedef char* png_libpng_version_1_6_36; /* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. * @@ -2013,12 +1982,12 @@ PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_const_structrp png_ptr, PNG_EXPORT(246, png_uint_32, png_get_eXIf, (png_const_structrp png_ptr, png_inforp info_ptr, png_bytep *exif)); PNG_EXPORT(247, void, png_set_eXIf, (png_const_structrp png_ptr, - png_inforp info_ptr, const png_bytep exif)); + png_inforp info_ptr, png_bytep exif)); PNG_EXPORT(248, png_uint_32, png_get_eXIf_1, (png_const_structrp png_ptr, png_const_inforp info_ptr, png_uint_32 *num_exif, png_bytep *exif)); PNG_EXPORT(249, void, png_set_eXIf_1, (png_const_structrp png_ptr, - png_inforp info_ptr, const png_uint_32 num_exif, const png_bytep exif)); + png_inforp info_ptr, png_uint_32 num_exif, png_bytep exif)); #endif #ifdef PNG_gAMA_SUPPORTED @@ -2764,7 +2733,7 @@ typedef struct * * When the simplified API needs to convert between sRGB and linear colorspaces, * the actual sRGB transfer curve defined in the sRGB specification (see the - * article at https://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 + * article at <https://en.wikipedia.org/wiki/SRGB>) is used, not the gamma=1/2.2 * approximation used elsewhere in libpng. * * When an alpha channel is present it is expected to denote pixel coverage @@ -2967,7 +2936,7 @@ typedef struct * 'flags' field of png_image. */ #define PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 0x01 - /* This indicates the the RGB values of the in-memory bitmap do not + /* This indicates that the RGB values of the in-memory bitmap do not * correspond to the red, green and blue end-points defined by sRGB. */ |