diff options
author | Liang Qi <liang.qi@theqtcompany.com> | 2016-01-19 10:00:53 +0100 |
---|---|---|
committer | Liang Qi <liang.qi@theqtcompany.com> | 2016-01-19 10:03:01 +0100 |
commit | 8f569c740a91b98365dcdaee2444038ce4957a76 (patch) | |
tree | 749302d8bf9023ae51873a74dc641fd005744502 /src/3rdparty/libpng/png.h | |
parent | 465e93aa95d99f799300867b07f81bdd5162c9f1 (diff) | |
parent | e8ad49d6cba6521f20b1b08bf65d92fc81c158e4 (diff) |
Merge remote-tracking branch 'origin/5.5' into 5.6
Conflicts:
config.tests/common/atomic64/atomic64.cpp
configure
src/3rdparty/forkfd/forkfd.c
src/corelib/io/forkfd_qt.cpp
src/widgets/kernel/qwidgetwindow.cpp
tests/auto/corelib/statemachine/qstatemachine/tst_qstatemachine.cpp
tests/auto/network/socket/qtcpsocket/tst_qtcpsocket.cpp
tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
tools/configure/configureapp.cpp
Change-Id: Ic6168d82e51a0ef1862c3a63bee6722e8f138414
Diffstat (limited to 'src/3rdparty/libpng/png.h')
-rw-r--r-- | src/3rdparty/libpng/png.h | 471 |
1 files changed, 154 insertions, 317 deletions
diff --git a/src/3rdparty/libpng/png.h b/src/3rdparty/libpng/png.h index 372599bfb4..c83051b1ca 100644 --- a/src/3rdparty/libpng/png.h +++ b/src/3rdparty/libpng/png.h @@ -1,7 +1,7 @@ /* png.h - header file for PNG reference library * - * libpng version 1.6.17, March 26, 2015 + * libpng version 1.6.19, November 12, 2015 * * Copyright (c) 1998-2015 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) @@ -11,232 +11,9 @@ * * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat - * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.6.17, March 26, 2015: Glenn + * libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger + * libpng versions 0.97, January 1998, through 1.6.19, November 12, 2015: Glenn * See also "Contributing Authors", below. - * - * Note about libpng version numbers: - * - * Due to various miscommunications, unforeseen code incompatibilities - * and occasional factors outside the authors' control, version numbering - * on the library has not always been consistent and straightforward. - * The following table summarizes matters since version 0.89c, which was - * the first widely used release: - * - * source png.h png.h shared-lib - * version string int version - * ------- ------ ----- ---------- - * 0.89c "1.0 beta 3" 0.89 89 1.0.89 - * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90] - * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95] - * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96] - * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97] - * 0.97c 0.97 97 2.0.97 - * 0.98 0.98 98 2.0.98 - * 0.99 0.99 98 2.0.99 - * 0.99a-m 0.99 99 2.0.99 - * 1.00 1.00 100 2.1.0 [100 should be 10000] - * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000] - * 1.0.1 png.h string is 10001 2.1.0 - * 1.0.1a-e identical to the 10002 from here on, the shared library - * 1.0.2 source version) 10002 is 2.V where V is the source code - * 1.0.2a-b 10003 version, except as noted. - * 1.0.3 10003 - * 1.0.3a-d 10004 - * 1.0.4 10004 - * 1.0.4a-f 10005 - * 1.0.5 (+ 2 patches) 10005 - * 1.0.5a-d 10006 - * 1.0.5e-r 10100 (not source compatible) - * 1.0.5s-v 10006 (not binary compatible) - * 1.0.6 (+ 3 patches) 10006 (still binary incompatible) - * 1.0.6d-f 10007 (still binary incompatible) - * 1.0.6g 10007 - * 1.0.6h 10007 10.6h (testing xy.z so-numbering) - * 1.0.6i 10007 10.6i - * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0) - * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible) - * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible) - * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible) - * 1.0.7 1 10007 (still compatible) - * 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 - * 1.0.8rc1 1 10008 2.1.0.8rc1 - * 1.0.8 1 10008 2.1.0.8 - * 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 - * 1.0.9rc1 1 10009 2.1.0.9rc1 - * 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 - * 1.0.9rc2 1 10009 2.1.0.9rc2 - * 1.0.9 1 10009 2.1.0.9 - * 1.0.10beta1 1 10010 2.1.0.10beta1 - * 1.0.10rc1 1 10010 2.1.0.10rc1 - * 1.0.10 1 10010 2.1.0.10 - * 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 - * 1.0.11rc1 1 10011 2.1.0.11rc1 - * 1.0.11 1 10011 2.1.0.11 - * 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 - * 1.0.12rc1 2 10012 2.1.0.12rc1 - * 1.0.12 2 10012 2.1.0.12 - * 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned) - * 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 - * 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 - * 1.2.0rc1 3 10200 3.1.2.0rc1 - * 1.2.0 3 10200 3.1.2.0 - * 1.2.1beta1-4 3 10201 3.1.2.1beta1-4 - * 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 - * 1.2.1 3 10201 3.1.2.1 - * 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 - * 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 - * 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 - * 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 - * 1.0.13 10 10013 10.so.0.1.0.13 - * 1.2.2 12 10202 12.so.0.1.2.2 - * 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 - * 1.2.3 12 10203 12.so.0.1.2.3 - * 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 - * 1.0.14rc1 13 10014 10.so.0.1.0.14rc1 - * 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 - * 1.0.14 10 10014 10.so.0.1.0.14 - * 1.2.4 13 10204 12.so.0.1.2.4 - * 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 - * 1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3 - * 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3 - * 1.0.15 10 10015 10.so.0.1.0.15 - * 1.2.5 13 10205 12.so.0.1.2.5 - * 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4 - * 1.0.16 10 10016 10.so.0.1.0.16 - * 1.2.6 13 10206 12.so.0.1.2.6 - * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 - * 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 - * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 - * 1.0.17 10 10017 12.so.0.1.0.17 - * 1.2.7 13 10207 12.so.0.1.2.7 - * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 - * 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5 - * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 - * 1.0.18 10 10018 12.so.0.1.0.18 - * 1.2.8 13 10208 12.so.0.1.2.8 - * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 - * 1.2.9beta4-11 13 10209 12.so.0.9[.0] - * 1.2.9rc1 13 10209 12.so.0.9[.0] - * 1.2.9 13 10209 12.so.0.9[.0] - * 1.2.10beta1-7 13 10210 12.so.0.10[.0] - * 1.2.10rc1-2 13 10210 12.so.0.10[.0] - * 1.2.10 13 10210 12.so.0.10[.0] - * 1.4.0beta1-5 14 10400 14.so.0.0[.0] - * 1.2.11beta1-4 13 10211 12.so.0.11[.0] - * 1.4.0beta7-8 14 10400 14.so.0.0[.0] - * 1.2.11 13 10211 12.so.0.11[.0] - * 1.2.12 13 10212 12.so.0.12[.0] - * 1.4.0beta9-14 14 10400 14.so.0.0[.0] - * 1.2.13 13 10213 12.so.0.13[.0] - * 1.4.0beta15-36 14 10400 14.so.0.0[.0] - * 1.4.0beta37-87 14 10400 14.so.14.0[.0] - * 1.4.0rc01 14 10400 14.so.14.0[.0] - * 1.4.0beta88-109 14 10400 14.so.14.0[.0] - * 1.4.0rc02-08 14 10400 14.so.14.0[.0] - * 1.4.0 14 10400 14.so.14.0[.0] - * 1.4.1beta01-03 14 10401 14.so.14.1[.0] - * 1.4.1rc01 14 10401 14.so.14.1[.0] - * 1.4.1beta04-12 14 10401 14.so.14.1[.0] - * 1.4.1 14 10401 14.so.14.1[.0] - * 1.4.2 14 10402 14.so.14.2[.0] - * 1.4.3 14 10403 14.so.14.3[.0] - * 1.4.4 14 10404 14.so.14.4[.0] - * 1.5.0beta01-58 15 10500 15.so.15.0[.0] - * 1.5.0rc01-07 15 10500 15.so.15.0[.0] - * 1.5.0 15 10500 15.so.15.0[.0] - * 1.5.1beta01-11 15 10501 15.so.15.1[.0] - * 1.5.1rc01-02 15 10501 15.so.15.1[.0] - * 1.5.1 15 10501 15.so.15.1[.0] - * 1.5.2beta01-03 15 10502 15.so.15.2[.0] - * 1.5.2rc01-03 15 10502 15.so.15.2[.0] - * 1.5.2 15 10502 15.so.15.2[.0] - * 1.5.3beta01-10 15 10503 15.so.15.3[.0] - * 1.5.3rc01-02 15 10503 15.so.15.3[.0] - * 1.5.3beta11 15 10503 15.so.15.3[.0] - * 1.5.3 [omitted] - * 1.5.4beta01-08 15 10504 15.so.15.4[.0] - * 1.5.4rc01 15 10504 15.so.15.4[.0] - * 1.5.4 15 10504 15.so.15.4[.0] - * 1.5.5beta01-08 15 10505 15.so.15.5[.0] - * 1.5.5rc01 15 10505 15.so.15.5[.0] - * 1.5.5 15 10505 15.so.15.5[.0] - * 1.5.6beta01-07 15 10506 15.so.15.6[.0] - * 1.5.6rc01-03 15 10506 15.so.15.6[.0] - * 1.5.6 15 10506 15.so.15.6[.0] - * 1.5.7beta01-05 15 10507 15.so.15.7[.0] - * 1.5.7rc01-03 15 10507 15.so.15.7[.0] - * 1.5.7 15 10507 15.so.15.7[.0] - * 1.6.0beta01-40 16 10600 16.so.16.0[.0] - * 1.6.0rc01-08 16 10600 16.so.16.0[.0] - * 1.6.0 16 10600 16.so.16.0[.0] - * 1.6.1beta01-09 16 10601 16.so.16.1[.0] - * 1.6.1rc01 16 10601 16.so.16.1[.0] - * 1.6.1 16 10601 16.so.16.1[.0] - * 1.6.2beta01 16 10602 16.so.16.2[.0] - * 1.6.2rc01-06 16 10602 16.so.16.2[.0] - * 1.6.2 16 10602 16.so.16.2[.0] - * 1.6.3beta01-11 16 10603 16.so.16.3[.0] - * 1.6.3rc01 16 10603 16.so.16.3[.0] - * 1.6.3 16 10603 16.so.16.3[.0] - * 1.6.4beta01-02 16 10604 16.so.16.4[.0] - * 1.6.4rc01 16 10604 16.so.16.4[.0] - * 1.6.4 16 10604 16.so.16.4[.0] - * 1.6.5 16 10605 16.so.16.5[.0] - * 1.6.6 16 10606 16.so.16.6[.0] - * 1.6.7beta01-04 16 10607 16.so.16.7[.0] - * 1.6.7rc01-03 16 10607 16.so.16.7[.0] - * 1.6.7 16 10607 16.so.16.7[.0] - * 1.6.8beta01-02 16 10608 16.so.16.8[.0] - * 1.6.8rc01-02 16 10608 16.so.16.8[.0] - * 1.6.8 16 10608 16.so.16.8[.0] - * 1.6.9beta01-04 16 10609 16.so.16.9[.0] - * 1.6.9rc01-02 16 10609 16.so.16.9[.0] - * 1.6.9 16 10609 16.so.16.9[.0] - * 1.6.10beta01-03 16 10610 16.so.16.10[.0] - * 1.6.10rc01-03 16 10610 16.so.16.10[.0] - * 1.6.10 16 10610 16.so.16.10[.0] - * 1.6.11beta01-06 16 10611 16.so.16.11[.0] - * 1.6.11rc01-02 16 10611 16.so.16.11[.0] - * 1.6.11 16 10611 16.so.16.11[.0] - * 1.6.12rc01-03 16 10612 16.so.16.12[.0] - * 1.6.12 16 10612 16.so.16.12[.0] - * 1.6.13beta01-04 16 10613 16.so.16.13[.0] - * 1.6.13rc01-02 16 10613 16.so.16.13[.0] - * 1.6.13 16 10613 16.so.16.13[.0] - * 1.6.14beta01-07 16 10614 16.so.16.14[.0] - * 1.6.14rc01-02 16 10614 16.so.16.14[.0] - * 1.6.14 16 10614 16.so.16.14[.0] - * 1.6.15beta01-08 16 10615 16.so.16.15[.0] - * 1.6.15rc01-03 16 10615 16.so.16.15[.0] - * 1.6.15 16 10615 16.so.16.15[.0] - * 1.6.16beta01-03 16 10616 16.so.16.16[.0] - * 1.6.16rc01-02 16 10616 16.so.16.16[.0] - * 1.6.16 16 10616 16.so.16.16[.0] - * 1.6.17beta01-06 16 10617 16.so.16.17[.0] - * 1.6.17rc01-06 16 10617 16.so.16.17[.0] - * 1.6.17 16 10617 16.so.16.17[.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 - * application is loaded with a different version of the library. - * - * DLLNUM will change each time there are forward or backward changes - * in binary compatibility (e.g., when a new feature is added). - * - * See libpng-manual.txt or libpng.3 for more information. The PNG - * specification is available as a W3C Recommendation and as an ISO - * Specification, <http://www.w3.org/TR/2003/REC-PNG-20031110/ */ /* @@ -247,21 +24,18 @@ * * This code is released under the libpng license. * - * libpng versions 1.2.6, August 15, 2004, through 1.6.17, March 26, 2015, are - * Copyright (c) 2004, 2006-2015 Glenn Randers-Pehrson, and are - * distributed according to the same disclaimer and license as libpng-1.2.5 - * with the following individual added to the list of Contributing Authors: - * - * Cosmin Truta - * - * libpng versions 1.0.7, July 1, 2000, through 1.2.5, October 3, 2002, are - * Copyright (c) 2000-2002 Glenn Randers-Pehrson, 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: + * libpng versions 1.0.7, July 1, 2000, through 1.6.19, November 12, 2015, are + * Copyright (c) 2000-2002, 2004, 2006-2015 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 * * and with the following additions to the disclaimer: * @@ -273,18 +47,20 @@ * the user. * * libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are - * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson, 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: + * 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 - * Distributed according to the same disclaimer and license as libpng-0.88, - * with the following individuals added to the list of Contributing Authors: + * 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 @@ -294,7 +70,7 @@ * Tom Tanner * * libpng versions 0.5, May 1995, through 0.88, January 1996, are - * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. + * 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: @@ -322,29 +98,32 @@ * 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. + * + * END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE. */ /* * A "png_get_copyright" function is available, for convenient use in "about" * boxes and the like: * - * printf("%s", png_get_copyright(NULL)); + * printf("%s", png_get_copyright(NULL)); * * Also, the PNG logo (in PNG format, of course) is supplied in the * files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). */ /* - * Libpng is OSI Certified Open Source Software. OSI Certified is a - * certification mark of the Open Source Initiative. + * 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. */ /* @@ -355,17 +134,92 @@ * Thanks to Frank J. T. Wojcik for helping with the documentation. */ +/* Note about libpng version numbers: + * + * Due to various miscommunications, unforeseen code incompatibilities + * and occasional factors outside the authors' control, version numbering + * on the library has not always been consistent and straightforward. + * The following table summarizes matters since version 0.89c, which was + * the first widely used release: + * + * source png.h png.h shared-lib + * version string int version + * ------- ------ ----- ---------- + * 0.89c "1.0 beta 3" 0.89 89 1.0.89 + * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90] + * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95] + * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96] + * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97] + * 0.97c 0.97 97 2.0.97 + * 0.98 0.98 98 2.0.98 + * 0.99 0.99 98 2.0.99 + * 0.99a-m 0.99 99 2.0.99 + * 1.00 1.00 100 2.1.0 [100 should be 10000] + * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000] + * 1.0.1 png.h string is 10001 2.1.0 + * 1.0.1a-e identical to the 10002 from here on, the shared library + * 1.0.2 source version) 10002 is 2.V where V is the source code + * 1.0.2a-b 10003 version, except as noted. + * 1.0.3 10003 + * 1.0.3a-d 10004 + * 1.0.4 10004 + * 1.0.4a-f 10005 + * 1.0.5 (+ 2 patches) 10005 + * 1.0.5a-d 10006 + * 1.0.5e-r 10100 (not source compatible) + * 1.0.5s-v 10006 (not binary compatible) + * 1.0.6 (+ 3 patches) 10006 (still binary incompatible) + * 1.0.6d-f 10007 (still binary incompatible) + * 1.0.6g 10007 + * 1.0.6h 10007 10.6h (testing xy.z so-numbering) + * 1.0.6i 10007 10.6i + * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0) + * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible) + * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible) + * 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] + * ... + * 1.2.53 13 10253 12.so.0.53[.0] + * ... + * 1.5.23 15 10523 15.so.15.23[.0] + * ... + * 1.6.19 16 10619 16.so.16.19[.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 + * application is loaded with a different version of the library. + * + * DLLNUM will change each time there are forward or backward changes + * 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, + * <http://www.w3.org/TR/2003/REC-PNG-20031110/ + */ + /* * Y2K compliance in libpng: * ========================= * - * March 26, 2015 + * November 12, 2015 * * 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 1.6.17 are Y2K compliant. It is my belief that + * upward through 1.6.19 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 @@ -427,9 +281,9 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.6.17" +#define PNG_LIBPNG_VER_STRING "1.6.19" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.6.17 - March 26, 2015\n" + " libpng version 1.6.19 - November 12, 2015\n" #define PNG_LIBPNG_VER_SONUM 16 #define PNG_LIBPNG_VER_DLLNUM 16 @@ -437,7 +291,7 @@ /* 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 17 +#define PNG_LIBPNG_VER_RELEASE 19 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: @@ -468,7 +322,7 @@ * 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 */ -#define PNG_LIBPNG_VER 10617 /* 1.6.17 */ +#define PNG_LIBPNG_VER 10619 /* 1.6.19 */ /* Library configuration: these options cannot be changed after * the library has been built. @@ -525,17 +379,22 @@ extern "C" { /* This file is arranged in several sections: * - * 1. Any configuration options that can be specified by for the application + * 1. [omitted] + * 2. Any configuration options that can be specified by for the application * code when it is built. (Build time configuration is in pnglibconf.h) - * 2. Type definitions (base types are defined in pngconf.h), structure + * 3. Type definitions (base types are defined in pngconf.h), structure * definitions. - * 3. Exported library functions. - * 4. Simplified API. + * 4. Exported library functions. + * 5. Simplified API. + * 6. Implementation options. * * The library source code has additional files (principally pngpriv.h) that * allow configuration of the library. */ -/* Section 1: run time configuration + +/* Section 1: [omitted] */ + +/* Section 2: run time configuration * See pnglibconf.h for build time configuration * * Run time configuration allows the application to choose between @@ -565,7 +424,7 @@ extern "C" { * Otherwise the calls are mapped to png_error. */ -/* Section 2: type definitions, including structures and compile time +/* Section 3: type definitions, including structures and compile time * constants. * See pngconf.h for base types that vary by machine/system */ @@ -573,7 +432,7 @@ 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_17; +typedef char* png_libpng_version_1_6_19; /* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. * @@ -889,7 +748,9 @@ typedef png_unknown_chunk * * png_unknown_chunkpp; #define PNG_INFO_iCCP 0x1000 /* ESR, 1.0.6 */ #define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */ #define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ +#if INT_MAX >= 0x8000 /* else this might break */ #define PNG_INFO_IDAT 0x8000 /* ESR, 1.0.6 */ +#endif /* This is used for the transformation routines, as some of them * change these values for the row. It also should enable using @@ -993,7 +854,9 @@ PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef); #define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */ /* Added to libpng-1.5.4 */ #define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */ +#if INT_MAX >= 0x8000 /* else this might break */ #define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */ +#endif /* Flags for MNG supported features */ #define PNG_FLAG_MNG_EMPTY_PLTE 0x01 @@ -1010,7 +873,7 @@ typedef PNG_CALLBACK(png_voidp, *png_malloc_ptr, (png_structp, png_alloc_size_t)); typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp)); -/* Section 3: exported functions +/* Section 4: exported functions * Here are the function definitions most commonly used. This is not * the place to find out how to use libpng. See libpng-manual.txt for the * full explanation, see example.c for the summary. This just provides @@ -1383,13 +1246,13 @@ PNG_EXPORT(38, void, png_set_invert_alpha, (png_structrp png_ptr)); #endif #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */ +/* Add a filler byte to 8-bit or 16-bit Gray or 24-bit or 48-bit RGB images. */ PNG_EXPORT(39, void, png_set_filler, (png_structrp png_ptr, png_uint_32 filler, int flags)); /* The values of the PNG_FILLER_ defines should NOT be changed */ # define PNG_FILLER_BEFORE 0 # define PNG_FILLER_AFTER 1 -/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */ +/* Add an alpha byte to 8-bit or 16-bit Gray or 24-bit or 48-bit RGB images. */ PNG_EXPORT(40, void, png_set_add_alpha, (png_structrp png_ptr, png_uint_32 filler, int flags)); #endif /* READ_FILLER || WRITE_FILLER */ @@ -1623,35 +1486,7 @@ PNG_EXPORT(67, void, png_set_filter, (png_structrp png_ptr, int method, #define PNG_FILTER_VALUE_LAST 5 #ifdef PNG_WRITE_SUPPORTED -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* EXPERIMENTAL */ -/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_ - * defines, either the default (minimum-sum-of-absolute-differences), or - * the experimental method (weighted-minimum-sum-of-absolute-differences). - * - * Weights are factors >= 1.0, indicating how important it is to keep the - * filter type consistent between rows. Larger numbers mean the current - * filter is that many times as likely to be the same as the "num_weights" - * previous filters. This is cumulative for each previous row with a weight. - * There needs to be "num_weights" values in "filter_weights", or it can be - * NULL if the weights aren't being specified. Weights have no influence on - * the selection of the first row filter. Well chosen weights can (in theory) - * improve the compression for a given image. - * - * Costs are factors >= 1.0 indicating the relative decoding costs of a - * filter type. Higher costs indicate more decoding expense, and are - * therefore less likely to be selected over a filter with lower computational - * costs. There needs to be a value in "filter_costs" for each valid filter - * type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't - * setting the costs. Costs try to improve the speed of decompression without - * unduly increasing the compressed image size. - * - * A negative weight or cost indicates the default value is to be used, and - * values in the range [0.0, 1.0) indicate the value is to remain unchanged. - * The default values for both weights and costs are currently 1.0, but may - * change if good general weighting/cost heuristics can be found. If both - * the weights and costs are set to 1.0, this degenerates the WEIGHTED method - * to the UNWEIGHTED method, but with added encoding time/computation. - */ +#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* DEPRECATED */ PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structrp png_ptr, int heuristic_method, int num_weights, png_const_doublep filter_weights, png_const_doublep filter_costs)) @@ -1661,9 +1496,7 @@ PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed, png_const_fixed_point_p filter_costs)) #endif /* WRITE_WEIGHTED_FILTER */ -/* Heuristic used for row filter selection. These defines should NOT be - * changed. - */ +/* The following are no longer used and will be removed from libpng-1.7: */ #define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */ #define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */ #define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */ @@ -2744,7 +2577,7 @@ PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); # define PNG_get_int_32(buf) \ ((png_int_32)((*(buf) & 0x80) \ - ? -((png_int_32)((png_get_uint_32(buf) ^ 0xffffffffL) + 1)) \ + ? -((png_int_32)(((png_get_uint_32(buf)^0xffffffffU)+1U)&0x7fffffffU)) \ : (png_int_32)png_get_uint_32(buf))) /* If PNG_PREFIX is defined the same thing as below happens in pnglibconf.h, @@ -2764,10 +2597,17 @@ PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); # endif #endif -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) || \ - defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) +#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED +PNG_EXPORT(242, void, png_set_check_for_invalid_index, + (png_structrp png_ptr, int allowed)); +# ifdef PNG_GET_PALETTE_MAX_SUPPORTED +PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr, + png_const_infop info_ptr)); +# endif +#endif /* CHECK_FOR_INVALID_INDEX */ + /******************************************************************************* - * SIMPLIFIED API + * Section 5: SIMPLIFIED API ******************************************************************************* * * Please read the documentation in libpng-manual.txt (TODO: write said @@ -2783,8 +2623,9 @@ PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); * * To read a PNG file using the simplified API: * - * 1) Declare a 'png_image' structure (see below) on the stack and set the - * version field to PNG_IMAGE_VERSION. + * 1) Declare a 'png_image' structure (see below) on the stack, set the + * version field to PNG_IMAGE_VERSION and the 'opaque' pointer to NULL + * (this is REQUIRED, your program may crash if you don't do it.) * 2) Call the appropriate png_image_begin_read... function. * 3) Set the png_image 'format' member to the required sample format. * 4) Allocate a buffer for the image and, if required, the color-map. @@ -2811,6 +2652,9 @@ PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); * when it is being read or defines the in-memory format of an image that you * need to write: */ +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) || \ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) + #define PNG_IMAGE_VERSION 1 typedef struct png_control *png_controlp; @@ -2910,7 +2754,7 @@ typedef struct * called to read or write the color-map and set the format correctly for the * image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! * - * NOTE: libpng can be built with particular features disabled, if you see + * NOTE: libpng can be built with particular features disabled. If you see * compiler errors because the definition of one of the following flags has been * compiled out it is because libpng does not have the required support. It is * possible, however, for the libpng configuration to enable the format on just @@ -2922,7 +2766,7 @@ typedef struct */ #define PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */ #define PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */ -#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2 byte channels else 1 byte */ +#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2-byte channels else 1-byte */ #define PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */ #ifdef PNG_FORMAT_BGR_SUPPORTED @@ -3209,9 +3053,11 @@ PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file, * * With all APIs row_stride is handled as in the read APIs - it is the spacing * from one row to the next in component sized units (1 or 2 bytes) and if - * negative indicates a bottom-up row layout in the buffer. + * negative indicates a bottom-up row layout in the buffer. If row_stride is zero, + * libpng will calculate it for you from the image width and number of channels. * - * Note that the write API does not support interlacing or sub-8-bit pixels. + * Note that the write API does not support interlacing, sub-8-bit pixels, indexed + * PNG (color_type 3) or most ancillary chunks. */ #endif /* STDIO */ #endif /* SIMPLIFIED_WRITE */ @@ -3220,17 +3066,8 @@ PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file, ******************************************************************************/ #endif /* SIMPLIFIED_{READ|WRITE} */ -#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED -PNG_EXPORT(242, void, png_set_check_for_invalid_index, - (png_structrp png_ptr, int allowed)); -# ifdef PNG_GET_PALETTE_MAX_SUPPORTED -PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr, - png_const_infop info_ptr)); -# endif -#endif /* CHECK_FOR_INVALID_INDEX */ - /******************************************************************************* - * IMPLEMENTATION OPTIONS + * Section 6: IMPLEMENTATION OPTIONS ******************************************************************************* * * Support for arbitrary implementation-specific optimizations. The API allows |