p!ranha?

/* png.h - header file for PNG reference library * * libpng version 1.2.49 - March 29, 2012 * Copyright (c) 1998-2012 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 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.97, January 1998, through 1.2.49 - March 29, 2012: 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 10.so.0.1.0.17rc1 * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 * 1.0.17 10 10017 10.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 10.so.0.1.0.18rc1-5 * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 * 1.0.18 10 10018 10.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] * 1.2.10beta1-8 13 10210 12.so.0.10[.0] * 1.2.10rc1-3 13 10210 12.so.0.10[.0] * 1.2.10 13 10210 12.so.0.10[.0] * 1.2.11beta1-4 13 10211 12.so.0.11[.0] * 1.0.19rc1-5 10 10019 10.so.0.19[.0] * 1.2.11rc1-5 13 10211 12.so.0.11[.0] * 1.0.19 10 10019 10.so.0.19[.0] * 1.2.11 13 10211 12.so.0.11[.0] * 1.0.20 10 10020 10.so.0.20[.0] * 1.2.12 13 10212 12.so.0.12[.0] * 1.2.13beta1 13 10213 12.so.0.13[.0] * 1.0.21 10 10021 10.so.0.21[.0] * 1.2.13 13 10213 12.so.0.13[.0] * 1.2.14beta1-2 13 10214 12.so.0.14[.0] * 1.0.22rc1 10 10022 10.so.0.22[.0] * 1.2.14rc1 13 10214 12.so.0.14[.0] * 1.0.22 10 10022 10.so.0.22[.0] * 1.2.14 13 10214 12.so.0.14[.0] * 1.2.15beta1-6 13 10215 12.so.0.15[.0] * 1.0.23rc1-5 10 10023 10.so.0.23[.0] * 1.2.15rc1-5 13 10215 12.so.0.15[.0] * 1.0.23 10 10023 10.so.0.23[.0] * 1.2.15 13 10215 12.so.0.15[.0] * 1.2.16beta1-2 13 10216 12.so.0.16[.0] * 1.2.16rc1 13 10216 12.so.0.16[.0] * 1.0.24 10 10024 10.so.0.24[.0] * 1.2.16 13 10216 12.so.0.16[.0] * 1.2.17beta1-2 13 10217 12.so.0.17[.0] * 1.0.25rc1 10 10025 10.so.0.25[.0] * 1.2.17rc1-3 13 10217 12.so.0.17[.0] * 1.0.25 10 10025 10.so.0.25[.0] * 1.2.17 13 10217 12.so.0.17[.0] * 1.0.26 10 10026 10.so.0.26[.0] * 1.2.18 13 10218 12.so.0.18[.0] * 1.2.19beta1-31 13 10219 12.so.0.19[.0] * 1.0.27rc1-6 10 10027 10.so.0.27[.0] * 1.2.19rc1-6 13 10219 12.so.0.19[.0] * 1.0.27 10 10027 10.so.0.27[.0] * 1.2.19 13 10219 12.so.0.19[.0] * 1.2.20beta01-04 13 10220 12.so.0.20[.0] * 1.0.28rc1-6 10 10028 10.so.0.28[.0] * 1.2.20rc1-6 13 10220 12.so.0.20[.0] * 1.0.28 10 10028 10.so.0.28[.0] * 1.2.20 13 10220 12.so.0.20[.0] * 1.2.21beta1-2 13 10221 12.so.0.21[.0] * 1.2.21rc1-3 13 10221 12.so.0.21[.0] * 1.0.29 10 10029 10.so.0.29[.0] * 1.2.21 13 10221 12.so.0.21[.0] * 1.2.22beta1-4 13 10222 12.so.0.22[.0] * 1.0.30rc1 10 10030 10.so.0.30[.0] * 1.2.22rc1 13 10222 12.so.0.22[.0] * 1.0.30 10 10030 10.so.0.30[.0] * 1.2.22 13 10222 12.so.0.22[.0] * 1.2.23beta01-05 13 10223 12.so.0.23[.0] * 1.2.23rc01 13 10223 12.so.0.23[.0] * 1.2.23 13 10223 12.so.0.23[.0] * 1.2.24beta01-02 13 10224 12.so.0.24[.0] * 1.2.24rc01 13 10224 12.so.0.24[.0] * 1.2.24 13 10224 12.so.0.24[.0] * 1.2.25beta01-06 13 10225 12.so.0.25[.0] * 1.2.25rc01-02 13 10225 12.so.0.25[.0] * 1.0.31 10 10031 10.so.0.31[.0] * 1.2.25 13 10225 12.so.0.25[.0] * 1.2.26beta01-06 13 10226 12.so.0.26[.0] * 1.2.26rc01 13 10226 12.so.0.26[.0] * 1.2.26 13 10226 12.so.0.26[.0] * 1.0.32 10 10032 10.so.0.32[.0] * 1.2.27beta01-06 13 10227 12.so.0.27[.0] * 1.2.27rc01 13 10227 12.so.0.27[.0] * 1.0.33 10 10033 10.so.0.33[.0] * 1.2.27 13 10227 12.so.0.27[.0] * 1.0.34 10 10034 10.so.0.34[.0] * 1.2.28 13 10228 12.so.0.28[.0] * 1.2.29beta01-03 13 10229 12.so.0.29[.0] * 1.2.29rc01 13 10229 12.so.0.29[.0] * 1.0.35 10 10035 10.so.0.35[.0] * 1.2.29 13 10229 12.so.0.29[.0] * 1.0.37 10 10037 10.so.0.37[.0] * 1.2.30beta01-04 13 10230 12.so.0.30[.0] * 1.0.38rc01-08 10 10038 10.so.0.38[.0] * 1.2.30rc01-08 13 10230 12.so.0.30[.0] * 1.0.38 10 10038 10.so.0.38[.0] * 1.2.30 13 10230 12.so.0.30[.0] * 1.0.39rc01-03 10 10039 10.so.0.39[.0] * 1.2.31rc01-03 13 10231 12.so.0.31[.0] * 1.0.39 10 10039 10.so.0.39[.0] * 1.2.31 13 10231 12.so.0.31[.0] * 1.2.32beta01-02 13 10232 12.so.0.32[.0] * 1.0.40rc01 10 10040 10.so.0.40[.0] * 1.2.32rc01 13 10232 12.so.0.32[.0] * 1.0.40 10 10040 10.so.0.40[.0] * 1.2.32 13 10232 12.so.0.32[.0] * 1.2.33beta01-02 13 10233 12.so.0.33[.0] * 1.2.33rc01-02 13 10233 12.so.0.33[.0] * 1.0.41rc01 10 10041 10.so.0.41[.0] * 1.2.33 13 10233 12.so.0.33[.0] * 1.0.41 10 10041 10.so.0.41[.0] * 1.2.34beta01-07 13 10234 12.so.0.34[.0] * 1.0.42rc01 10 10042 10.so.0.42[.0] * 1.2.34rc01 13 10234 12.so.0.34[.0] * 1.0.42 10 10042 10.so.0.42[.0] * 1.2.34 13 10234 12.so.0.34[.0] * 1.2.35beta01-03 13 10235 12.so.0.35[.0] * 1.0.43rc01-02 10 10043 10.so.0.43[.0] * 1.2.35rc01-02 13 10235 12.so.0.35[.0] * 1.0.43 10 10043 10.so.0.43[.0] * 1.2.35 13 10235 12.so.0.35[.0] * 1.2.36beta01-05 13 10236 12.so.0.36[.0] * 1.2.36rc01 13 10236 12.so.0.36[.0] * 1.0.44 10 10044 10.so.0.44[.0] * 1.2.36 13 10236 12.so.0.36[.0] * 1.2.37beta01-03 13 10237 12.so.0.37[.0] * 1.2.37rc01 13 10237 12.so.0.37[.0] * 1.2.37 13 10237 12.so.0.37[.0] * 1.0.45 10 10045 12.so.0.45[.0] * 1.0.46 10 10046 10.so.0.46[.0] * 1.2.38beta01 13 10238 12.so.0.38[.0] * 1.2.38rc01-03 13 10238 12.so.0.38[.0] * 1.0.47 10 10047 10.so.0.47[.0] * 1.2.38 13 10238 12.so.0.38[.0] * 1.2.39beta01-05 13 10239 12.so.0.39[.0] * 1.2.39rc01 13 10239 12.so.0.39[.0] * 1.0.48 10 10048 10.so.0.48[.0] * 1.2.39 13 10239 12.so.0.39[.0] * 1.2.40beta01 13 10240 12.so.0.40[.0] * 1.2.40rc01 13 10240 12.so.0.40[.0] * 1.0.49 10 10049 10.so.0.49[.0] * 1.2.40 13 10240 12.so.0.40[.0] * 1.2.41beta01-18 13 10241 12.so.0.41[.0] * 1.0.51rc01 10 10051 10.so.0.51[.0] * 1.2.41rc01-03 13 10241 12.so.0.41[.0] * 1.0.51 10 10051 10.so.0.51[.0] * 1.2.41 13 10241 12.so.0.41[.0] * 1.2.42beta01-02 13 10242 12.so.0.42[.0] * 1.2.42rc01-05 13 10242 12.so.0.42[.0] * 1.0.52 10 10052 10.so.0.52[.0] * 1.2.42 13 10242 12.so.0.42[.0] * 1.2.43beta01-05 13 10243 12.so.0.43[.0] * 1.0.53rc01-02 10 10053 10.so.0.53[.0] * 1.2.43rc01-02 13 10243 12.so.0.43[.0] * 1.0.53 10 10053 10.so.0.53[.0] * 1.2.43 13 10243 12.so.0.43[.0] * 1.2.44beta01-03 13 10244 12.so.0.44[.0] * 1.2.44rc01-03 13 10244 12.so.0.44[.0] * 1.2.44 13 10244 12.so.0.44[.0] * 1.2.45beta01-03 13 10245 12.so.0.45[.0] * 1.0.55rc01 10 10055 10.so.0.55[.0] * 1.2.45rc01 13 10245 12.so.0.45[.0] * 1.0.55 10 10055 10.so.0.55[.0] * 1.2.45 13 10245 12.so.0.45[.0] * 1.2.46rc01-02 13 10246 12.so.0.46[.0] * 1.0.56 10 10056 10.so.0.56[.0] * 1.2.46 13 10246 12.so.0.46[.0] * 1.2.47beta01 13 10247 12.so.0.47[.0] * 1.2.47rc01 13 10247 12.so.0.47[.0] * 1.0.57rc01 10 10057 10.so.0.57[.0] * 1.2.47 13 10247 12.so.0.47[.0] * 1.0.57 10 10057 10.so.0.57[.0] * 1.2.48beta01 13 10248 12.so.0.48[.0] * 1.2.48rc01-02 13 10248 12.so.0.48[.0] * 1.0.58 10 10058 10.so.0.58[.0] * 1.2.48 13 10248 12.so.0.48[.0] * 1.2.49rc01 13 10249 12.so.0.49[.0] * 1.0.59 10 10059 10.so.0.59[.0] * 1.2.49 13 10249 12.so.0.49[.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/ */ /* * 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 1.2.6, August 15, 2004, through 1.2.49, March 29, 2012, are * Copyright (c) 2004, 2006-2011 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: * * Simon-Pierre Cadieux * Eric S. Raymond * Gilles Vollant * * 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. * * 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: * * 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: * * John Bowler * Kevin Bracey * Sam Bushell * Magnus Holmgren * Greg Roelofs * Tom Tanner * * 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. */ /* * A "png_get_copyright" function is available, for convenient use in "about" * boxes and the like: * * 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. */ /* * The contributing authors would like to thank all those who helped * with testing, bug fixes, and patience. This wouldn't have been * possible without all of you. * * Thanks to Frank J. T. Wojcik for helping with the documentation. */ /* * Y2K compliance in libpng: * ========================= * * March 29, 2012 * * 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 1.2.49 are Y2K compliant. It is my belief that earlier * versions were also Y2K compliant. * * Libpng only has three year fields. One is a 2-byte unsigned integer * that will hold years up to 65535. The other two hold the date in text * format, and will hold years up to 9999. * * The integer is * "png_uint_16 year" in png_time_struct. * * The strings are * "png_charp time_buffer" in png_struct and * "near_time_buffer", which is a local character string in png.c. * * There are seven time-related functions: * png.c: png_convert_to_rfc_1123() in png.c * (formerly png_convert_to_rfc_1152() in error) * 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 applications using * libpng are not passing 4-digit years into the png_convert_to_rfc_1123() * 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 */ #ifndef PNG_H #define PNG_H /* This is not the place to learn how to use libpng. The file libpng.txt * describes how to use libpng, and the file example.c summarizes it * with some code on which to build. This file is useful for looking * at the actual function definitions and structure components. */ /* Version information for png.h - this should match the version in png.c */ #define PNG_LIBPNG_VER_STRING "1.2.49" #define PNG_HEADER_VERSION_STRING \ " libpng version 1.2.49 - March 29, 2012\n" #define PNG_LIBPNG_VER_SONUM 0 #define PNG_LIBPNG_VER_DLLNUM 13 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MINOR 2 #define PNG_LIBPNG_VER_RELEASE 49 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: */ #define PNG_LIBPNG_VER_BUILD 0 /* Release Status */ #define PNG_LIBPNG_BUILD_ALPHA 1 #define PNG_LIBPNG_BUILD_BETA 2 #define PNG_LIBPNG_BUILD_RC 3 #define PNG_LIBPNG_BUILD_STABLE 4 #define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7 /* Release-Specific Flags */ #define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with PNG_LIBPNG_BUILD_STABLE only */ #define PNG_LIBPNG_BUILD_PRIVATE 16 /* Cannot be OR'ed with PNG_LIBPNG_BUILD_SPECIAL */ #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with PNG_LIBPNG_BUILD_PRIVATE */ #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 */ #define PNG_LIBPNG_VER 10249 /* 1.2.49 */ #ifndef PNG_VERSION_INFO_ONLY /* Include the compression library's header */ #include "zlib.h" #endif /* Include all user configurable info, including optional assembler routines */ #include "pngconf.h" /* * Added at libpng-1.2.8 */ /* Ref MSDN: Private as priority over Special * VS_FF_PRIVATEBUILD File *was not* built using standard release * procedures. If this value is given, the StringFileInfo block must * contain a PrivateBuild string. * * VS_FF_SPECIALBUILD File *was* built by the original company using * standard release procedures but is a variation of the standard * file of the same version number. If this value is given, the * StringFileInfo block must contain a SpecialBuild string. */ #ifdef PNG_USER_PRIVATEBUILD # define PNG_LIBPNG_BUILD_TYPE \ (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_PRIVATE) #else # ifdef PNG_LIBPNG_SPECIALBUILD # define PNG_LIBPNG_BUILD_TYPE \ (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_SPECIAL) # else # define PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE) # endif #endif #ifndef PNG_VERSION_INFO_ONLY /* Inhibit C++ name-mangling for libpng functions but not for system calls. */ #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* This file is arranged in several sections. The first section contains * structure and type definitions. The second section contains the external * library functions, while the third has the internal library functions, * which applications aren't expected to use directly. */ #ifndef PNG_NO_TYPECAST_NULL #define int_p_NULL (int *)NULL #define png_bytep_NULL (png_bytep)NULL #define png_bytepp_NULL (png_bytepp)NULL #define png_doublep_NULL (png_doublep)NULL #define png_error_ptr_NULL (png_error_ptr)NULL #define png_flush_ptr_NULL (png_flush_ptr)NULL #define png_free_ptr_NULL (png_free_ptr)NULL #define png_infopp_NULL (png_infopp)NULL #define png_malloc_ptr_NULL (png_malloc_ptr)NULL #define png_read_status_ptr_NULL (png_read_status_ptr)NULL #define png_rw_ptr_NULL (png_rw_ptr)NULL #define png_structp_NULL (png_structp)NULL #define png_uint_16p_NULL (png_uint_16p)NULL #define png_voidp_NULL (png_voidp)NULL #define png_write_status_ptr_NULL (png_write_status_ptr)NULL #else #define int_p_NULL NULL #define png_bytep_NULL NULL #define png_bytepp_NULL NULL #define png_doublep_NULL NULL #define png_error_ptr_NULL NULL #define png_flush_ptr_NULL NULL #define png_free_ptr_NULL NULL #define png_infopp_NULL NULL #define png_malloc_ptr_NULL NULL #define png_read_status_ptr_NULL NULL #define png_rw_ptr_NULL NULL #define png_structp_NULL NULL #define png_uint_16p_NULL NULL #define png_voidp_NULL NULL #define png_write_status_ptr_NULL NULL #endif /* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */ #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) /* Version information for C files, stored in png.c. This had better match * the version above. */ #ifdef PNG_USE_GLOBAL_ARRAYS PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18]; /* Need room for 99.99.99beta99z */ #else #define png_libpng_ver png_get_header_ver(NULL) #endif #ifdef PNG_USE_GLOBAL_ARRAYS /* This was removed in version 1.0.5c */ /* Structures to facilitate easy interlacing. See png.c for more details */ PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_start[7]; PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_inc[7]; PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_ystart[7]; PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_yinc[7]; PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_mask[7]; PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_dsp_mask[7]; /* This isn't currently used. If you need it, see png.c for more details. PNG_EXPORT_VAR (PNG_CONST int FARDATA) png_pass_height[7]; */ #endif #endif /* PNG_NO_EXTERN */ /* Three color definitions. The order of the red, green, and blue, (and the * exact size) is not important, although the size of the fields need to * be png_byte or png_uint_16 (as defined below). */ typedef struct png_color_struct { png_byte red; png_byte green; png_byte blue; } png_color; typedef png_color FAR * png_colorp; typedef png_color FAR * FAR * png_colorpp; typedef struct png_color_16_struct { png_byte index; /* used for palette files */ png_uint_16 red; /* for use in red green blue files */ png_uint_16 green; png_uint_16 blue; png_uint_16 gray; /* for use in grayscale files */ } png_color_16; typedef png_color_16 FAR * png_color_16p; typedef png_color_16 FAR * FAR * png_color_16pp; typedef struct png_color_8_struct { png_byte red; /* for use in red green blue files */ png_byte green; png_byte blue; png_byte gray; /* for use in grayscale files */ png_byte alpha; /* for alpha channel files */ } png_color_8; typedef png_color_8 FAR * png_color_8p; typedef png_color_8 FAR * FAR * png_color_8pp; /* * The following two structures are used for the in-core representation * of sPLT chunks. */ typedef struct png_sPLT_entry_struct { png_uint_16 red; png_uint_16 green; png_uint_16 blue; png_uint_16 alpha; png_uint_16 frequency; } png_sPLT_entry; typedef png_sPLT_entry FAR * png_sPLT_entryp; typedef png_sPLT_entry FAR * FAR * png_sPLT_entrypp; /* When the depth of the sPLT palette is 8 bits, the color and alpha samples * occupy the LSB of their respective members, and the MSB of each member * is zero-filled. The frequency member always occupies the full 16 bits. */ typedef struct png_sPLT_struct { png_charp name; /* palette name */ png_byte depth; /* depth of palette samples */ png_sPLT_entryp entries; /* palette entries */ png_int_32 nentries; /* number of palette entries */ } png_sPLT_t; typedef png_sPLT_t FAR * png_sPLT_tp; typedef png_sPLT_t FAR * FAR * png_sPLT_tpp; #ifdef PNG_TEXT_SUPPORTED /* png_text holds the contents of a text/ztxt/itxt chunk in a PNG file, * and whether that contents is compressed or not. The "key" field * points to a regular zero-terminated C string. The "text", "lang", and * "lang_key" fields can be regular C strings, empty strings, or NULL pointers. * However, the * structure returned by png_get_text() will always contain * regular zero-terminated C strings (possibly empty), never NULL pointers, * so they can be safely used in printf() and other string-handling functions. */ typedef struct png_text_struct { int compression; /* compression value: -1: tEXt, none 0: zTXt, deflate 1: iTXt, none 2: iTXt, deflate */ png_charp key; /* keyword, 1-79 character description of "text" */ png_charp text; /* comment, may be an empty string (ie "") or a NULL pointer */ png_size_t text_length; /* length of the text string */ #ifdef PNG_iTXt_SUPPORTED png_size_t itxt_length; /* length of the itxt string */ png_charp lang; /* language code, 0-79 characters or a NULL pointer */ png_charp lang_key; /* keyword translated UTF-8 string, 0 or more chars or a NULL pointer */ #endif } png_text; typedef png_text FAR * png_textp; typedef png_text FAR * FAR * png_textpp; #endif /* Supported compression types for text in PNG files (tEXt, and zTXt). * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */ #define PNG_TEXT_COMPRESSION_NONE_WR -3 #define PNG_TEXT_COMPRESSION_zTXt_WR -2 #define PNG_TEXT_COMPRESSION_NONE -1 #define PNG_TEXT_COMPRESSION_zTXt 0 #define PNG_ITXT_COMPRESSION_NONE 1 #define PNG_ITXT_COMPRESSION_zTXt 2 #define PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */ /* png_time is a way to hold the time in an machine independent way. * Two conversions are provided, both from time_t and struct tm. There * is no portable way to convert to either of these structures, as far * as I know. If you know of a portable way, send it to me. As a side * note - PNG has always been Year 2000 compliant! */ typedef struct png_time_struct { png_uint_16 year; /* full year, as in, 1995 */ png_byte month; /* month of year, 1 - 12 */ png_byte day; /* day of month, 1 - 31 */ png_byte hour; /* hour of day, 0 - 23 */ png_byte minute; /* minute of hour, 0 - 59 */ png_byte second; /* second of minute, 0 - 60 (for leap seconds) */ } png_time; typedef png_time FAR * png_timep; typedef png_time FAR * FAR * png_timepp; #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \ defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) /* png_unknown_chunk is a structure to hold queued chunks for which there is * no specific support. The idea is that we can use this to queue * up private chunks for output even though the library doesn't actually * know about their semantics. */ #define PNG_CHUNK_NAME_LENGTH 5 typedef struct png_unknown_chunk_t { png_byte name[PNG_CHUNK_NAME_LENGTH]; png_byte *data; png_size_t size; /* libpng-using applications should NOT directly modify this byte. */ png_byte location; /* mode of operation at read time */ } png_unknown_chunk; typedef png_unknown_chunk FAR * png_unknown_chunkp; typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp; #endif /* png_info is a structure that holds the information in a PNG file so * that the application can find out the characteristics of the image. * If you are reading the file, this structure will tell you what is * in the PNG file. If you are writing the file, fill in the information * you want to put into the PNG file, then call png_write_info(). * The names chosen should be very close to the PNG specification, so * consult that document for information about the meaning of each field. * * With libpng < 0.95, it was only possible to directly set and read the * the values in the png_info_struct, which meant that the contents and * order of the values had to remain fixed. With libpng 0.95 and later, * however, there are now functions that abstract the contents of * png_info_struct from the application, so this makes it easier to use * libpng with dynamic libraries, and even makes it possible to use * libraries that don't have all of the libpng ancillary chunk-handing * functionality. * * In any case, the order of the parameters in png_info_struct should NOT * be changed for as long as possible to keep compatibility with applications * that use the old direct-access method with png_info_struct. * * The following members may have allocated storage attached that should be * cleaned up before the structure is discarded: palette, trans, text, * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile, * splt_palettes, scal_unit, row_pointers, and unknowns. By default, these * are automatically freed when the info structure is deallocated, if they were * allocated internally by libpng. This behavior can be changed by means * of the png_data_freer() function. * * More allocation details: all the chunk-reading functions that * change these members go through the corresponding png_set_* * functions. A function to clear these members is available: see * png_free_data(). The png_set_* functions do not depend on being * able to point info structure members to any of the storage they are * passed (they make their own copies), EXCEPT that the png_set_text * functions use the same storage passed to them in the text_ptr or * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns * functions do not make their own copies. */ typedef struct png_info_struct { /* The following are necessary for every PNG file */ png_uint_32 width PNG_DEPSTRUCT; /* width of image in pixels (from IHDR) */ png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels (from IHDR) */ png_uint_32 valid PNG_DEPSTRUCT; /* valid chunk data (see PNG_INFO_ below) */ png_uint_32 rowbytes PNG_DEPSTRUCT; /* bytes needed to hold an untransformed row */ png_colorp palette PNG_DEPSTRUCT; /* array of color values (valid & PNG_INFO_PLTE) */ png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in "palette" (PLTE) */ png_uint_16 num_trans PNG_DEPSTRUCT; /* number of transparent palette color (tRNS) */ png_byte bit_depth PNG_DEPSTRUCT; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */ png_byte color_type PNG_DEPSTRUCT; /* see PNG_COLOR_TYPE_ below (from IHDR) */ /* The following three should have been named *_method not *_type */ png_byte compression_type PNG_DEPSTRUCT; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */ png_byte filter_type PNG_DEPSTRUCT; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */ png_byte interlace_type PNG_DEPSTRUCT; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ /* The following is informational only on read, and not used on writes. */ png_byte channels PNG_DEPSTRUCT; /* number of data channels per pixel (1, 2, 3, 4) */ png_byte pixel_depth PNG_DEPSTRUCT; /* number of bits per pixel */ png_byte spare_byte PNG_DEPSTRUCT; /* to align the data, and for future use */ png_byte signature[8] PNG_DEPSTRUCT; /* magic bytes read by libpng from start of file */ /* The rest of the data is optional. If you are reading, check the * valid field to see if the information in these are valid. If you * are writing, set the valid field to those chunks you want written, * and initialize the appropriate fields below. */ #if defined(PNG_gAMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) /* The gAMA chunk describes the gamma characteristics of the system * on which the image was created, normally in the range [1.0, 2.5]. * Data is valid if (valid & PNG_INFO_gAMA) is non-zero. */ float gamma PNG_DEPSTRUCT; /* gamma value of image, if (valid & PNG_INFO_gAMA) */ #endif #ifdef PNG_sRGB_SUPPORTED /* GR-P, 0.96a */ /* Data valid if (valid & PNG_INFO_sRGB) non-zero. */ png_byte srgb_intent PNG_DEPSTRUCT; /* sRGB rendering intent [0, 1, 2, or 3] */ #endif #ifdef PNG_TEXT_SUPPORTED /* The tEXt, and zTXt chunks contain human-readable textual data in * uncompressed, compressed, and optionally compressed forms, respectively. * The data in "text" is an array of pointers to uncompressed, * null-terminated C strings. Each chunk has a keyword that describes the * textual data contained in that chunk. Keywords are not required to be * unique, and the text string may be empty. Any number of text chunks may * be in an image. */ int num_text PNG_DEPSTRUCT; /* number of comments read/to write */ int max_text PNG_DEPSTRUCT; /* current size of text array */ png_textp text PNG_DEPSTRUCT; /* array of comments read/to write */ #endif /* PNG_TEXT_SUPPORTED */ #ifdef PNG_tIME_SUPPORTED /* The tIME chunk holds the last time the displayed image data was * modified. See the png_time struct for the contents of this struct. */ png_time mod_time PNG_DEPSTRUCT; #endif #ifdef PNG_sBIT_SUPPORTED /* The sBIT chunk specifies the number of significant high-order bits * in the pixel data. Values are in the range [1, bit_depth], and are * only specified for the channels in the pixel data. The contents of * the low-order bits is not specified. Data is valid if * (valid & PNG_INFO_sBIT) is non-zero. */ png_color_8 sig_bit PNG_DEPSTRUCT; /* significant bits in color channels */ #endif #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \ defined(PNG_READ_BACKGROUND_SUPPORTED) /* The tRNS chunk supplies transparency data for paletted images and * other image types that don't need a full alpha channel. There are * "num_trans" transparency values for a paletted image, stored in the * same order as the palette colors, starting from index 0. Values * for the data are in the range [0, 255], ranging from fully transparent * to fully opaque, respectively. For non-paletted images, there is a * single color specified that should be treated as fully transparent. * Data is valid if (valid & PNG_INFO_tRNS) is non-zero. */ png_bytep trans PNG_DEPSTRUCT; /* transparent values for paletted image */ png_color_16 trans_values PNG_DEPSTRUCT; /* transparent color for non-palette image */ #endif #if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) /* The bKGD chunk gives the suggested image background color if the * display program does not have its own background color and the image * is needs to composited onto a background before display. The colors * in "background" are normally in the same color space/depth as the * pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero. */ png_color_16 background PNG_DEPSTRUCT; #endif #ifdef PNG_oFFs_SUPPORTED /* The oFFs chunk gives the offset in "offset_unit_type" units rightwards * and downwards from the top-left corner of the display, page, or other * application-specific co-ordinate space. See the PNG_OFFSET_ defines * below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero. */ png_int_32 x_offset PNG_DEPSTRUCT; /* x offset on page */ png_int_32 y_offset PNG_DEPSTRUCT; /* y offset on page */ png_byte offset_unit_type PNG_DEPSTRUCT; /* offset units type */ #endif #ifdef PNG_pHYs_SUPPORTED /* The pHYs chunk gives the physical pixel density of the image for * display or printing in "phys_unit_type" units (see PNG_RESOLUTION_ * defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero. */ png_uint_32 x_pixels_per_unit PNG_DEPSTRUCT; /* horizontal pixel density */ png_uint_32 y_pixels_per_unit PNG_DEPSTRUCT; /* vertical pixel density */ png_byte phys_unit_type PNG_DEPSTRUCT; /* resolution type (see PNG_RESOLUTION_ below) */ #endif #ifdef PNG_hIST_SUPPORTED /* The hIST chunk contains the relative frequency or importance of the * various palette entries, so that a viewer can intelligently select a * reduced-color palette, if required. Data is an array of "num_palette" * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST) * is non-zero. */ png_uint_16p hist PNG_DEPSTRUCT; #endif #ifdef PNG_cHRM_SUPPORTED /* The cHRM chunk describes the CIE color characteristics of the monitor * on which the PNG was created. This data allows the viewer to do gamut * mapping of the input image to ensure that the viewer sees the same * colors in the image as the creator. Values are in the range * [0.0, 0.8]. Data valid if (valid & PNG_INFO_cHRM) non-zero. */ #ifdef PNG_FLOATING_POINT_SUPPORTED float x_white PNG_DEPSTRUCT; float y_white PNG_DEPSTRUCT; float x_red PNG_DEPSTRUCT; float y_red PNG_DEPSTRUCT; float x_green PNG_DEPSTRUCT; float y_green PNG_DEPSTRUCT; float x_blue PNG_DEPSTRUCT; float y_blue PNG_DEPSTRUCT; #endif #endif #ifdef PNG_pCAL_SUPPORTED /* The pCAL chunk describes a transformation between the stored pixel * values and original physical data values used to create the image. * The integer range [0, 2^bit_depth - 1] maps to the floating-point * range given by [pcal_X0, pcal_X1], and are further transformed by a * (possibly non-linear) transformation function given by "pcal_type" * and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_ * defines below, and the PNG-Group's PNG extensions document for a * complete description of the transformations and how they should be * implemented, and for a description of the ASCII parameter strings. * Data values are valid if (valid & PNG_INFO_pCAL) non-zero. */ png_charp pcal_purpose PNG_DEPSTRUCT; /* pCAL chunk description string */ png_int_32 pcal_X0 PNG_DEPSTRUCT; /* minimum value */ png_int_32 pcal_X1 PNG_DEPSTRUCT; /* maximum value */ png_charp pcal_units PNG_DEPSTRUCT; /* Latin-1 string giving physical units */ png_charpp pcal_params PNG_DEPSTRUCT; /* ASCII strings containing parameter values */ png_byte pcal_type PNG_DEPSTRUCT; /* equation type (see PNG_EQUATION_ below) */ png_byte pcal_nparams PNG_DEPSTRUCT; /* number of parameters given in pcal_params */ #endif /* New members added in libpng-1.0.6 */ #ifdef PNG_FREE_ME_SUPPORTED png_uint_32 free_me PNG_DEPSTRUCT; /* flags items libpng is responsible for freeing */ #endif #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \ defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) /* Storage for unknown chunks that the library doesn't recognize. */ png_unknown_chunkp unknown_chunks PNG_DEPSTRUCT; png_size_t unknown_chunks_num PNG_DEPSTRUCT; #endif #ifdef PNG_iCCP_SUPPORTED /* iCCP chunk data. */ png_charp iccp_name PNG_DEPSTRUCT; /* profile name */ png_charp iccp_profile PNG_DEPSTRUCT; /* International Color Consortium profile data */ /* Note to maintainer: should be png_bytep */ png_uint_32 iccp_proflen PNG_DEPSTRUCT; /* ICC profile data length */ png_byte iccp_compression PNG_DEPSTRUCT; /* Always zero */ #endif #ifdef PNG_sPLT_SUPPORTED /* Data on sPLT chunks (there may be more than one). */ png_sPLT_tp splt_palettes PNG_DEPSTRUCT; png_uint_32 splt_palettes_num PNG_DEPSTRUCT; #endif #ifdef PNG_sCAL_SUPPORTED /* The sCAL chunk describes the actual physical dimensions of the * subject matter of the graphic. The chunk contains a unit specification * a byte value, and two ASCII strings representing floating-point * values. The values are width and height corresponsing to one pixel * in the image. This external representation is converted to double * here. Data values are valid if (valid & PNG_INFO_sCAL) is non-zero. */ png_byte scal_unit PNG_DEPSTRUCT; /* unit of physical scale */ #ifdef PNG_FLOATING_POINT_SUPPORTED double scal_pixel_width PNG_DEPSTRUCT; /* width of one pixel */ double scal_pixel_height PNG_DEPSTRUCT; /* height of one pixel */ #endif #ifdef PNG_FIXED_POINT_SUPPORTED png_charp scal_s_width PNG_DEPSTRUCT; /* string containing height */ png_charp scal_s_height PNG_DEPSTRUCT; /* string containing width */ #endif #endif #ifdef PNG_INFO_IMAGE_SUPPORTED /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) non-zero */ /* Data valid if (valid & PNG_INFO_IDAT) non-zero */ png_bytepp row_pointers PNG_DEPSTRUCT; /* the image bits */ #endif #if defined(PNG_FIXED_POINT_SUPPORTED) && defined(PNG_gAMA_SUPPORTED) png_fixed_point int_gamma PNG_DEPSTRUCT; /* gamma of image, if (valid & PNG_INFO_gAMA) */ #endif #if defined(PNG_cHRM_SUPPORTED) && defined(PNG_FIXED_POINT_SUPPORTED) png_fixed_point int_x_white PNG_DEPSTRUCT; png_fixed_point int_y_white PNG_DEPSTRUCT; png_fixed_point int_x_red PNG_DEPSTRUCT; png_fixed_point int_y_red PNG_DEPSTRUCT; png_fixed_point int_x_green PNG_DEPSTRUCT; png_fixed_point int_y_green PNG_DEPSTRUCT; png_fixed_point int_x_blue PNG_DEPSTRUCT; png_fixed_point int_y_blue PNG_DEPSTRUCT; #endif } png_info; typedef png_info FAR * png_infop; typedef png_info FAR * FAR * png_infopp; /* Maximum positive integer used in PNG is (2^31)-1 */ #define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL) #define PNG_UINT_32_MAX ((png_uint_32)(-1)) #define PNG_SIZE_MAX ((png_size_t)(-1)) #if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* PNG_MAX_UINT is deprecated; use PNG_UINT_31_MAX instead. */ #define PNG_MAX_UINT PNG_UINT_31_MAX #endif /* These describe the color_type field in png_info. */ /* color type masks */ #define PNG_COLOR_MASK_PALETTE 1 #define PNG_COLOR_MASK_COLOR 2 #define PNG_COLOR_MASK_ALPHA 4 /* color types. Note that not all combinations are legal */ #define PNG_COLOR_TYPE_GRAY 0 #define PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_PALETTE) #define PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR) #define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA) #define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA) /* aliases */ #define PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA #define PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA /* This is for compression type. PNG 1.0-1.2 only define the single type. */ #define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */ #define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE /* This is for filter type. PNG 1.0-1.2 only define the single type. */ #define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */ #define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */ #define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE /* These are for the interlacing type. These values should NOT be changed. */ #define PNG_INTERLACE_NONE 0 /* Non-interlaced image */ #define PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */ #define PNG_INTERLACE_LAST 2 /* Not a valid value */ /* These are for the oFFs chunk. These values should NOT be changed. */ #define PNG_OFFSET_PIXEL 0 /* Offset in pixels */ #define PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */ #define PNG_OFFSET_LAST 2 /* Not a valid value */ /* These are for the pCAL chunk. These values should NOT be changed. */ #define PNG_EQUATION_LINEAR 0 /* Linear transformation */ #define PNG_EQUATION_BASE_E 1 /* Exponential base e transform */ #define PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */ #define PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */ #define PNG_EQUATION_LAST 4 /* Not a valid value */ /* These are for the sCAL chunk. These values should NOT be changed. */ #define PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */ #define PNG_SCALE_METER 1 /* meters per pixel */ #define PNG_SCALE_RADIAN 2 /* radians per pixel */ #define PNG_SCALE_LAST 3 /* Not a valid value */ /* These are for the pHYs chunk. These values should NOT be changed. */ #define PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */ #define PNG_RESOLUTION_METER 1 /* pixels/meter */ #define PNG_RESOLUTION_LAST 2 /* Not a valid value */ /* These are for the sRGB chunk. These values should NOT be changed. */ #define PNG_sRGB_INTENT_PERCEPTUAL 0 #define PNG_sRGB_INTENT_RELATIVE 1 #define PNG_sRGB_INTENT_SATURATION 2 #define PNG_sRGB_INTENT_ABSOLUTE 3 #define PNG_sRGB_INTENT_LAST 4 /* Not a valid value */ /* This is for text chunks */ #define PNG_KEYWORD_MAX_LENGTH 79 /* Maximum number of entries in PLTE/sPLT/tRNS arrays */ #define PNG_MAX_PALETTE_LENGTH 256 /* These determine if an ancillary chunk's data has been successfully read * from the PNG header, or if the application has filled in the corresponding * data in the info_struct to be written into the output file. The values * of the PNG_INFO_<chunk> defines should NOT be changed. */ #define PNG_INFO_gAMA 0x0001 #define PNG_INFO_sBIT 0x0002 #define PNG_INFO_cHRM 0x0004 #define PNG_INFO_PLTE 0x0008 #define PNG_INFO_tRNS 0x0010 #define PNG_INFO_bKGD 0x0020 #define PNG_INFO_hIST 0x0040 #define PNG_INFO_pHYs 0x0080 #define PNG_INFO_oFFs 0x0100 #define PNG_INFO_tIME 0x0200 #define PNG_INFO_pCAL 0x0400 #define PNG_INFO_sRGB 0x0800 /* GR-P, 0.96a */ #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 */ #define PNG_INFO_IDAT 0x8000L /* ESR, 1.0.6 */ /* This is used for the transformation routines, as some of them * change these values for the row. It also should enable using * the routines for other purposes. */ typedef struct png_row_info_struct { png_uint_32 width; /* width of row */ png_uint_32 rowbytes; /* number of bytes in row */ png_byte color_type; /* color type of row */ png_byte bit_depth; /* bit depth of row */ png_byte channels; /* number of channels (1, 2, 3, or 4) */ png_byte pixel_depth; /* bits per pixel (depth * channels) */ } png_row_info; typedef png_row_info FAR * png_row_infop; typedef png_row_info FAR * FAR * png_row_infopp; /* These are the function types for the I/O functions and for the functions * that allow the user to override the default I/O functions with his or her * own. The png_error_ptr type should match that of user-supplied warning * and error functions, while the png_rw_ptr type should match that of the * user read/write data functions. */ typedef struct png_struct_def png_struct; typedef png_struct FAR * png_structp; typedef void (PNGAPI *png_error_ptr) PNGARG((png_structp, png_const_charp)); typedef void (PNGAPI *png_rw_ptr) PNGARG((png_structp, png_bytep, png_size_t)); typedef void (PNGAPI *png_flush_ptr) PNGARG((png_structp)); typedef void (PNGAPI *png_read_status_ptr) PNGARG((png_structp, png_uint_32, int)); typedef void (PNGAPI *png_write_status_ptr) PNGARG((png_structp, png_uint_32, int)); #ifdef PNG_PROGRESSIVE_READ_SUPPORTED typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, png_infop)); typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop)); typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep, png_uint_32, int)); #endif #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_LEGACY_SUPPORTED) typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp, png_row_infop, png_bytep)); #endif #ifdef PNG_USER_CHUNKS_SUPPORTED typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp)); #endif #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp)); #endif /* Transform masks for the high-level interface */ #define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */ #define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */ #define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */ #define PNG_TRANSFORM_PACKING 0x0004 /* read and write */ #define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */ #define PNG_TRANSFORM_EXPAND 0x0010 /* read only */ #define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */ #define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */ #define PNG_TRANSFORM_BGR 0x0080 /* read and write */ #define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ #define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ #define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ #define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only, deprecated */ /* Added to libpng-1.2.34 */ #define PNG_TRANSFORM_STRIP_FILLER_BEFORE 0x0800 /* write only */ #define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */ /* Added to libpng-1.2.41 */ #define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */ /* Flags for MNG supported features */ #define PNG_FLAG_MNG_EMPTY_PLTE 0x01 #define PNG_FLAG_MNG_FILTER_64 0x04 #define PNG_ALL_MNG_FEATURES 0x05 typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t)); typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp)); /* The structure that holds the information to read and write PNG files. * The only people who need to care about what is inside of this are the * people who will be modifying the library for their own special needs. * It should NOT be accessed directly by an application, except to store * the jmp_buf. */ struct png_struct_def { #ifdef PNG_SETJMP_SUPPORTED jmp_buf jmpbuf; /* used in png_error */ #endif png_error_ptr error_fn PNG_DEPSTRUCT; /* function for printing errors and aborting */ png_error_ptr warning_fn PNG_DEPSTRUCT; /* function for printing warnings */ png_voidp error_ptr PNG_DEPSTRUCT; /* user supplied struct for error functions */ png_rw_ptr write_data_fn PNG_DEPSTRUCT; /* function for writing output data */ png_rw_ptr read_data_fn PNG_DEPSTRUCT; /* function for reading input data */ png_voidp io_ptr PNG_DEPSTRUCT; /* ptr to application struct for I/O functions */ #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED png_user_transform_ptr read_user_transform_fn PNG_DEPSTRUCT; /* user read transform */ #endif #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED png_user_transform_ptr write_user_transform_fn PNG_DEPSTRUCT; /* user write transform */ #endif /* These were added in libpng-1.0.2 */ #ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) png_voidp user_transform_ptr PNG_DEPSTRUCT; /* user supplied struct for user transform */ png_byte user_transform_depth PNG_DEPSTRUCT; /* bit depth of user transformed pixels */ png_byte user_transform_channels PNG_DEPSTRUCT; /* channels in user transformed pixels */ #endif #endif png_uint_32 mode PNG_DEPSTRUCT; /* tells us where we are in the PNG file */ png_uint_32 flags PNG_DEPSTRUCT; /* flags indicating various things to libpng */ png_uint_32 transformations PNG_DEPSTRUCT; /* which transformations to perform */ z_stream zstream PNG_DEPSTRUCT; /* pointer to decompression structure (below) */ png_bytep zbuf PNG_DEPSTRUCT; /* buffer for zlib */ png_size_t zbuf_size PNG_DEPSTRUCT; /* size of zbuf */ int zlib_level PNG_DEPSTRUCT; /* holds zlib compression level */ int zlib_method PNG_DEPSTRUCT; /* holds zlib compression method */ int zlib_window_bits PNG_DEPSTRUCT; /* holds zlib compression window bits */ int zlib_mem_level PNG_DEPSTRUCT; /* holds zlib compression memory level */ int zlib_strategy PNG_DEPSTRUCT; /* holds zlib compression strategy */ png_uint_32 width PNG_DEPSTRUCT; /* width of image in pixels */ png_uint_32 height PNG_DEPSTRUCT; /* height of image in pixels */ png_uint_32 num_rows PNG_DEPSTRUCT; /* number of rows in current pass */ png_uint_32 usr_width PNG_DEPSTRUCT; /* width of row at start of write */ png_uint_32 rowbytes PNG_DEPSTRUCT; /* size of row in bytes */ #if 0 /* Replaced with the following in libpng-1.2.43 */ png_size_t irowbytes PNG_DEPSTRUCT; #endif /* Added in libpng-1.2.43 */ #ifdef PNG_USER_LIMITS_SUPPORTED /* Added in libpng-1.4.0: Total number of sPLT, text, and unknown * chunks that can be stored (0 means unlimited). */ png_uint_32 user_chunk_cache_max PNG_DEPSTRUCT; #endif png_uint_32 iwidth PNG_DEPSTRUCT; /* width of current interlaced row in pixels */ png_uint_32 row_number PNG_DEPSTRUCT; /* current row in interlace pass */ png_bytep prev_row PNG_DEPSTRUCT; /* buffer to save previous (unfiltered) row */ png_bytep row_buf PNG_DEPSTRUCT; /* buffer to save current (unfiltered) row */ #ifndef PNG_NO_WRITE_FILTER png_bytep sub_row PNG_DEPSTRUCT; /* buffer to save "sub" row when filtering */ png_bytep up_row PNG_DEPSTRUCT; /* buffer to save "up" row when filtering */ png_bytep avg_row PNG_DEPSTRUCT; /* buffer to save "avg" row when filtering */ png_bytep paeth_row PNG_DEPSTRUCT; /* buffer to save "Paeth" row when filtering */ #endif png_row_info row_info PNG_DEPSTRUCT; /* used for transformation routines */ png_uint_32 idat_size PNG_DEPSTRUCT; /* current IDAT size for read */ png_uint_32 crc PNG_DEPSTRUCT; /* current chunk CRC value */ png_colorp palette PNG_DEPSTRUCT; /* palette from the input file */ png_uint_16 num_palette PNG_DEPSTRUCT; /* number of color entries in palette */ png_uint_16 num_trans PNG_DEPSTRUCT; /* number of transparency values */ png_byte chunk_name[5] PNG_DEPSTRUCT; /* null-terminated name of current chunk */ png_byte compression PNG_DEPSTRUCT; /* file compression type (always 0) */ png_byte filter PNG_DEPSTRUCT; /* file filter type (always 0) */ png_byte interlaced PNG_DEPSTRUCT; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ png_byte pass PNG_DEPSTRUCT; /* current interlace pass (0 - 6) */ png_byte do_filter PNG_DEPSTRUCT; /* row filter flags (see PNG_FILTER_ below ) */ png_byte color_type PNG_DEPSTRUCT; /* color type of file */ png_byte bit_depth PNG_DEPSTRUCT; /* bit depth of file */ png_byte usr_bit_depth PNG_DEPSTRUCT; /* bit depth of users row */ png_byte pixel_depth PNG_DEPSTRUCT; /* number of bits per pixel */ png_byte channels PNG_DEPSTRUCT; /* number of channels in file */ png_byte usr_channels PNG_DEPSTRUCT; /* channels at start of write */ png_byte sig_bytes PNG_DEPSTRUCT; /* magic bytes read/written from start of file */ #if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) #ifdef PNG_LEGACY_SUPPORTED png_byte filler PNG_DEPSTRUCT; /* filler byte for pixel expansion */ #else png_uint_16 filler PNG_DEPSTRUCT; /* filler bytes for pixel expansion */ #endif #endif #ifdef PNG_bKGD_SUPPORTED png_byte background_gamma_type PNG_DEPSTRUCT; # ifdef PNG_FLOATING_POINT_SUPPORTED float background_gamma PNG_DEPSTRUCT; # endif png_color_16 background PNG_DEPSTRUCT; /* background color in screen gamma space */ #ifdef PNG_READ_GAMMA_SUPPORTED png_color_16 background_1 PNG_DEPSTRUCT; /* background normalized to gamma 1.0 */ #endif #endif /* PNG_bKGD_SUPPORTED */ #ifdef PNG_WRITE_FLUSH_SUPPORTED png_flush_ptr output_flush_fn PNG_DEPSTRUCT; /* Function for flushing output */ png_uint_32 flush_dist PNG_DEPSTRUCT; /* how many rows apart to flush, 0 - no flush */ png_uint_32 flush_rows PNG_DEPSTRUCT; /* number of rows written since last flush */ #endif #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) int gamma_shift PNG_DEPSTRUCT; /* number of "insignificant" bits 16-bit gamma */ #ifdef PNG_FLOATING_POINT_SUPPORTED float gamma PNG_DEPSTRUCT; /* file gamma value */ float screen_gamma PNG_DEPSTRUCT; /* screen gamma value (display_exponent) */ #endif #endif #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) png_bytep gamma_table PNG_DEPSTRUCT; /* gamma table for 8-bit depth files */ png_bytep gamma_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to screen */ png_bytep gamma_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */ png_uint_16pp gamma_16_table PNG_DEPSTRUCT; /* gamma table for 16-bit depth files */ png_uint_16pp gamma_16_from_1 PNG_DEPSTRUCT; /* converts from 1.0 to screen */ png_uint_16pp gamma_16_to_1 PNG_DEPSTRUCT; /* converts from file to 1.0 */ #endif #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED) png_color_8 sig_bit PNG_DEPSTRUCT; /* significant bits in each available channel */ #endif #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) png_color_8 shift PNG_DEPSTRUCT; /* shift for significant bit tranformation */ #endif #if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) png_bytep trans PNG_DEPSTRUCT; /* transparency values for paletted files */ png_color_16 trans_values PNG_DEPSTRUCT; /* transparency values for non-paletted files */ #endif png_read_status_ptr read_row_fn PNG_DEPSTRUCT; /* called after each row is decoded */ png_write_status_ptr write_row_fn PNG_DEPSTRUCT; /* called after each row is encoded */ #ifdef PNG_PROGRESSIVE_READ_SUPPORTED png_progressive_info_ptr info_fn PNG_DEPSTRUCT; /* called after header data fully read */ png_progressive_row_ptr row_fn PNG_DEPSTRUCT; /* called after each prog. row is decoded */ png_progressive_end_ptr end_fn PNG_DEPSTRUCT; /* called after image is complete */ png_bytep save_buffer_ptr PNG_DEPSTRUCT; /* current location in save_buffer */ png_bytep save_buffer PNG_DEPSTRUCT; /* buffer for previously read data */ png_bytep current_buffer_ptr PNG_DEPSTRUCT; /* current location in current_buffer */ png_bytep current_buffer PNG_DEPSTRUCT; /* buffer for recently used data */ png_uint_32 push_length PNG_DEPSTRUCT; /* size of current input chunk */ png_uint_32 skip_length PNG_DEPSTRUCT; /* bytes to skip in input data */ png_size_t save_buffer_size PNG_DEPSTRUCT; /* amount of data now in save_buffer */ png_size_t save_buffer_max PNG_DEPSTRUCT; /* total size of save_buffer */ png_size_t buffer_size PNG_DEPSTRUCT; /* total amount of available input data */ png_size_t current_buffer_size PNG_DEPSTRUCT; /* amount of data now in current_buffer */ int process_mode PNG_DEPSTRUCT; /* what push library is currently doing */ int cur_palette PNG_DEPSTRUCT; /* current push library palette index */ # ifdef PNG_TEXT_SUPPORTED png_size_t current_text_size PNG_DEPSTRUCT; /* current size of text input data */ png_size_t current_text_left PNG_DEPSTRUCT; /* how much text left to read in input */ png_charp current_text PNG_DEPSTRUCT; /* current text chunk buffer */ png_charp current_text_ptr PNG_DEPSTRUCT; /* current location in current_text */ # endif /* PNG_TEXT_SUPPORTED */ #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ #if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) /* for the Borland special 64K segment handler */ png_bytepp offset_table_ptr PNG_DEPSTRUCT; png_bytep offset_table PNG_DEPSTRUCT; png_uint_16 offset_table_number PNG_DEPSTRUCT; png_uint_16 offset_table_count PNG_DEPSTRUCT; png_uint_16 offset_table_count_free PNG_DEPSTRUCT; #endif #ifdef PNG_READ_DITHER_SUPPORTED png_bytep palette_lookup PNG_DEPSTRUCT; /* lookup table for dithering */ png_bytep dither_index PNG_DEPSTRUCT; /* index translation for palette files */ #endif #if defined(PNG_READ_DITHER_SUPPORTED) || defined(PNG_hIST_SUPPORTED) png_uint_16p hist PNG_DEPSTRUCT; /* histogram */ #endif #ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED png_byte heuristic_method PNG_DEPSTRUCT; /* heuristic for row filter selection */ png_byte num_prev_filters PNG_DEPSTRUCT; /* number of weights for previous rows */ png_bytep prev_filters PNG_DEPSTRUCT; /* filter type(s) of previous row(s) */ png_uint_16p filter_weights PNG_DEPSTRUCT; /* weight(s) for previous line(s) */ png_uint_16p inv_filter_weights PNG_DEPSTRUCT; /* 1/weight(s) for previous line(s) */ png_uint_16p filter_costs PNG_DEPSTRUCT; /* relative filter calculation cost */ png_uint_16p inv_filter_costs PNG_DEPSTRUCT; /* 1/relative filter calculation cost */ #endif #ifdef PNG_TIME_RFC1123_SUPPORTED png_charp time_buffer PNG_DEPSTRUCT; /* String to hold RFC 1123 time text */ #endif /* New members added in libpng-1.0.6 */ #ifdef PNG_FREE_ME_SUPPORTED png_uint_32 free_me PNG_DEPSTRUCT; /* flags items libpng is responsible for freeing */ #endif #ifdef PNG_USER_CHUNKS_SUPPORTED png_voidp user_chunk_ptr PNG_DEPSTRUCT; png_user_chunk_ptr read_user_chunk_fn PNG_DEPSTRUCT; /* user read chunk handler */ #endif #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED int num_chunk_list PNG_DEPSTRUCT; png_bytep chunk_list PNG_DEPSTRUCT; #endif /* New members added in libpng-1.0.3 */ #ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED png_byte rgb_to_gray_status PNG_DEPSTRUCT; /* These were changed from png_byte in libpng-1.0.6 */ png_uint_16 rgb_to_gray_red_coeff PNG_DEPSTRUCT; png_uint_16 rgb_to_gray_green_coeff PNG_DEPSTRUCT; png_uint_16 rgb_to_gray_blue_coeff PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.4 (renamed in 1.0.9) */ #if defined(PNG_MNG_FEATURES_SUPPORTED) || \ defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) /* Changed from png_byte to png_uint_32 at version 1.2.0 */ #ifdef PNG_1_0_X png_byte mng_features_permitted PNG_DEPSTRUCT; #else png_uint_32 mng_features_permitted PNG_DEPSTRUCT; #endif /* PNG_1_0_X */ #endif /* New member added in libpng-1.0.7 */ #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) png_fixed_point int_gamma PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */ #ifdef PNG_MNG_FEATURES_SUPPORTED png_byte filter_type PNG_DEPSTRUCT; #endif #ifdef PNG_1_0_X /* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */ png_uint_32 row_buf_size PNG_DEPSTRUCT; #endif /* New members added in libpng-1.2.0 */ #ifdef PNG_ASSEMBLER_CODE_SUPPORTED # ifndef PNG_1_0_X # ifdef PNG_MMX_CODE_SUPPORTED png_byte mmx_bitdepth_threshold PNG_DEPSTRUCT; png_uint_32 mmx_rowbytes_threshold PNG_DEPSTRUCT; # endif png_uint_32 asm_flags PNG_DEPSTRUCT; # endif #endif /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ #ifdef PNG_USER_MEM_SUPPORTED png_voidp mem_ptr PNG_DEPSTRUCT; /* user supplied struct for mem functions */ png_malloc_ptr malloc_fn PNG_DEPSTRUCT; /* function for allocating memory */ png_free_ptr free_fn PNG_DEPSTRUCT; /* function for freeing memory */ #endif /* New member added in libpng-1.0.13 and 1.2.0 */ png_bytep big_row_buf PNG_DEPSTRUCT; /* buffer to save current (unfiltered) row */ #ifdef PNG_READ_DITHER_SUPPORTED /* The following three members were added at version 1.0.14 and 1.2.4 */ png_bytep dither_sort PNG_DEPSTRUCT; /* working sort array */ png_bytep index_to_palette PNG_DEPSTRUCT; /* where the original index currently is */ /* in the palette */ png_bytep palette_to_index PNG_DEPSTRUCT; /* which original index points to this */ /* palette color */ #endif /* New members added in libpng-1.0.16 and 1.2.6 */ png_byte compression_type PNG_DEPSTRUCT; #ifdef PNG_USER_LIMITS_SUPPORTED png_uint_32 user_width_max PNG_DEPSTRUCT; png_uint_32 user_height_max PNG_DEPSTRUCT; #endif /* New member added in libpng-1.0.25 and 1.2.17 */ #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED /* Storage for unknown chunk that the library doesn't recognize. */ png_unknown_chunk unknown_chunk PNG_DEPSTRUCT; #endif /* New members added in libpng-1.2.26 */ png_uint_32 old_big_row_buf_size PNG_DEPSTRUCT; png_uint_32 old_prev_row_size PNG_DEPSTRUCT; /* New member added in libpng-1.2.30 */ png_charp chunkdata PNG_DEPSTRUCT; /* buffer for reading chunk data */ }; /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ typedef png_structp version_1_2_49; typedef png_struct FAR * FAR * png_structpp; /* Here are the function definitions most commonly used. This is not * the place to find out how to use libpng. See libpng.txt for the * full explanation, see example.c for the summary. This just provides * a simple one line description of the use of each function. */ /* Returns the version number of the library */ extern PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void)); /* Tell lib we have already handled the first <num_bytes> magic bytes. * Handling more than 8 bytes from the beginning of the file is an error. */ extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr, int num_bytes)); /* Check sig[start] through sig[start + num_to_check - 1] to see if it's a * PNG file. Returns zero if the supplied bytes match the 8-byte PNG * signature, and non-zero otherwise. Having num_to_check == 0 or * start > 7 will always fail (ie return non-zero). */ extern PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start, png_size_t num_to_check)); /* Simple signature checking function. This is the same as calling * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). */ extern PNG_EXPORT(int,png_check_sig) PNGARG((png_bytep sig, int num)) PNG_DEPRECATED; /* Allocate and initialize png_ptr struct for reading, and any other memory. */ extern PNG_EXPORT(png_structp,png_create_read_struct) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED; /* Allocate and initialize png_ptr struct for writing, and any other memory */ extern PNG_EXPORT(png_structp,png_create_write_struct) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED; #ifdef PNG_WRITE_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_compression_buffer_size) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_WRITE_SUPPORTED extern PNG_EXPORT(void,png_set_compression_buffer_size) PNGARG((png_structp png_ptr, png_uint_32 size)); #endif /* Reset the compression stream */ extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr)); /* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */ #ifdef PNG_USER_MEM_SUPPORTED extern PNG_EXPORT(png_structp,png_create_read_struct_2) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)) PNG_ALLOCATED; extern PNG_EXPORT(png_structp,png_create_write_struct_2) PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)) PNG_ALLOCATED; #endif /* Write a PNG chunk - size, type, (optional) data, CRC. */ extern PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr, png_bytep chunk_name, png_bytep data, png_size_t length)); /* Write the start of a PNG chunk - length and chunk name. */ extern PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr, png_bytep chunk_name, png_uint_32 length)); /* Write the data of a PNG chunk started with png_write_chunk_start(). */ extern PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)); /* Finish a chunk started with png_write_chunk_start() (includes CRC). */ extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr)); /* Allocate and initialize the info structure */ extern PNG_EXPORT(png_infop,png_create_info_struct) PNGARG((png_structp png_ptr)) PNG_ALLOCATED; #if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Initialize the info structure (old interface - DEPRECATED) */ extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr)) PNG_DEPRECATED; #undef png_info_init #define png_info_init(info_ptr) png_info_init_3(&info_ptr,\ png_sizeof(png_info)); #endif extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr, png_size_t png_info_struct_size)); /* Writes all the PNG information before the image. */ extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr, png_infop info_ptr)); extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifdef PNG_SEQUENTIAL_READ_SUPPORTED /* Read the information before the actual image data. */ extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif #ifdef PNG_TIME_RFC1123_SUPPORTED extern PNG_EXPORT(png_charp,png_convert_to_rfc1123) PNGARG((png_structp png_ptr, png_timep ptime)); #endif #ifdef PNG_CONVERT_tIME_SUPPORTED /* Convert from a struct tm to png_time */ extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, struct tm FAR * ttime)); /* Convert from time_t to png_time. Uses gmtime() */ extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, time_t ttime)); #endif /* PNG_CONVERT_tIME_SUPPORTED */ #ifdef PNG_READ_EXPAND_SUPPORTED /* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr)); #ifndef PNG_1_0_X extern PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); #endif extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)); #if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Deprecated */ extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)) PNG_DEPRECATED; #endif #endif #if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) /* Use blue, green, red order for pixels. */ extern PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED /* Expand the grayscale to 24-bit RGB if necessary. */ extern PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED /* Reduce RGB to grayscale. */ #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr, int error_action, double red, double green )); #endif extern PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr, int error_action, png_fixed_point red, png_fixed_point green )); extern PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp png_ptr)); #endif extern PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth, png_colorp palette)); #ifdef PNG_READ_STRIP_ALPHA_SUPPORTED extern PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) extern PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) extern PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp 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. */ extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp 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. */ #ifndef PNG_1_0_X extern PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr, png_uint_32 filler, int flags)); #endif #endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) /* Swap bytes in 16-bit depth files. */ extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) /* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */ extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) /* Swap packing order of pixels in bytes. */ extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) /* Converts files to legal bit depths. */ extern PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr, png_color_8p true_bits)); #endif #if defined(PNG_READ_INTERLACING_SUPPORTED) || \ defined(PNG_WRITE_INTERLACING_SUPPORTED) /* Have the code handle the interlacing. Returns the number of passes. */ extern PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) /* Invert monochrome files */ extern PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_READ_BACKGROUND_SUPPORTED /* Handle alpha and tRNS by replacing with a background color. */ #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, png_color_16p background_color, int background_gamma_code, int need_expand, double background_gamma)); #endif #define PNG_BACKGROUND_GAMMA_UNKNOWN 0 #define PNG_BACKGROUND_GAMMA_SCREEN 1 #define PNG_BACKGROUND_GAMMA_FILE 2 #define PNG_BACKGROUND_GAMMA_UNIQUE 3 #endif #ifdef PNG_READ_16_TO_8_SUPPORTED /* Strip the second byte of information from a 16-bit depth file. */ extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_READ_DITHER_SUPPORTED /* Turn on dithering, and reduce the palette to the number of colors available. */ extern PNG_EXPORT(void,png_set_dither) PNGARG((png_structp png_ptr, png_colorp palette, int num_palette, int maximum_colors, png_uint_16p histogram, int full_dither)); #endif #ifdef PNG_READ_GAMMA_SUPPORTED /* Handle gamma correction. Screen_gamma=(display_exponent) */ #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, double screen_gamma, double default_file_gamma)); #endif #endif #if defined(PNG_1_0_X) || defined (PNG_1_2_X) #if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) /* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */ /* Deprecated and will be removed. Use png_permit_mng_features() instead. */ extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr, int empty_plte_permitted)) PNG_DEPRECATED; #endif #endif #ifdef PNG_WRITE_FLUSH_SUPPORTED /* Set how many lines between output flushes - 0 for no flushing */ extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows)); /* Flush the current PNG output buffer */ extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); #endif /* Optional update palette with requested transformations */ extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); /* Optional call to update the users info structure */ extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED /* Read one or more rows of image data. */ extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)); #endif #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED /* Read a row of data. */ extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, png_bytep row, png_bytep display_row)); #endif #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED /* Read the whole image into memory at once. */ extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, png_bytepp image)); #endif /* Write a row of image data */ extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, png_bytep row)); /* Write a few rows of image data */ extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, png_bytepp row, png_uint_32 num_rows)); /* Write the image data */ extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, png_bytepp image)); /* Writes the end of the PNG file. */ extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED /* Read the end of the PNG file. */ extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif /* Free any memory associated with the png_info_struct */ extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, png_infopp info_ptr_ptr)); /* Free any memory associated with the png_struct and the png_info_structs */ extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); /* Free all memory used by the read (old method - NOT DLL EXPORTED) */ extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr)) PNG_DEPRECATED; /* Free any memory associated with the png_struct and the png_info_structs */ extern PNG_EXPORT(void,png_destroy_write_struct) PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)); /* Free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ extern void png_write_destroy PNGARG((png_structp png_ptr)) PNG_DEPRECATED; /* Set the libpng method of handling chunk CRC errors */ extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, int crit_action, int ancil_action)); /* Values for png_set_crc_action() to say how to handle CRC errors in * ancillary and critical chunks, and whether to use the data contained * therein. Note that it is impossible to "discard" data in a critical * chunk. For versions prior to 0.90, the action was always error/quit, * whereas in version 0.90 and later, the action for CRC errors in ancillary * chunks is warn/discard. These values should NOT be changed. * * value action:critical action:ancillary */ #define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */ #define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */ #define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */ #define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */ #define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */ #define PNG_CRC_NO_CHANGE 5 /* use current value use current value */ /* These functions give the user control over the scan-line filtering in * libpng and the compression methods used by zlib. These functions are * mainly useful for testing, as the defaults should work with most users. * Those users who are tight on memory or want faster performance at the * expense of compression can modify them. See the compression library * header file (zlib.h) for an explination of the compression functions. */ /* Set the filtering method(s) used by libpng. Currently, the only valid * value for "method" is 0. */ extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, int filters)); /* Flags for png_set_filter() to say which filters to use. The flags * are chosen so that they don't conflict with real filter types * below, in case they are supplied instead of the #defined constants. * These values should NOT be changed. */ #define PNG_NO_FILTERS 0x00 #define PNG_FILTER_NONE 0x08 #define PNG_FILTER_SUB 0x10 #define PNG_FILTER_UP 0x20 #define PNG_FILTER_AVG 0x40 #define PNG_FILTER_PAETH 0x80 #define PNG_ALL_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP | \ PNG_FILTER_AVG | PNG_FILTER_PAETH) /* Filter values (not flags) - used in pngwrite.c, pngwutil.c for now. * These defines should NOT be changed. */ #define PNG_FILTER_VALUE_NONE 0 #define PNG_FILTER_VALUE_SUB 1 #define PNG_FILTER_VALUE_UP 2 #define PNG_FILTER_VALUE_AVG 3 #define PNG_FILTER_VALUE_PAETH 4 #define PNG_FILTER_VALUE_LAST 5 #if defined(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_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, int heuristic_method, int num_weights, png_doublep filter_weights, png_doublep filter_costs)); #endif #endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ /* Heuristic used for row filter selection. These defines should NOT be * changed. */ #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 */ #define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */ /* Set the library compression level. Currently, valid values range from * 0 - 9, corresponding directly to the zlib compression levels 0 - 9 * (0 - no compression, 9 - "maximal" compression). Note that tests have * shown that zlib compression levels 3-6 usually perform as well as level 9 * for PNG images, and do considerably fewer caclulations. In the future, * these values may not correspond directly to the zlib compression levels. */ extern PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr, int level)); extern PNG_EXPORT(void,png_set_compression_mem_level) PNGARG((png_structp png_ptr, int mem_level)); extern PNG_EXPORT(void,png_set_compression_strategy) PNGARG((png_structp png_ptr, int strategy)); extern PNG_EXPORT(void,png_set_compression_window_bits) PNGARG((png_structp png_ptr, int window_bits)); extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr, int method)); /* These next functions are called for input/output, memory, and error * handling. They are in the file pngrio.c, pngwio.c, and pngerror.c, * and call standard C I/O routines such as fread(), fwrite(), and * fprintf(). These functions can be made to use other I/O routines * at run time for those applications that need to handle I/O in a * different manner by calling png_set_???_fn(). See libpng.txt for * more information. */ #ifdef PNG_STDIO_SUPPORTED /* Initialize the input/output for the PNG file to the default functions. */ extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp)); #endif /* Replace the (error and abort), and warning functions with user * supplied functions. If no messages are to be printed you must still * write and use replacement functions. The replacement error_fn should * still do a longjmp to the last setjmp location if you are using this * method of error handling. If error_fn or warning_fn is NULL, the * default function will be used. */ extern PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr, png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)); /* Return the user pointer associated with the error functions */ extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr)); /* Replace the default data output functions with a user supplied one(s). * If buffered output is not used, then output_flush_fn can be set to NULL. * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time * output_flush_fn will be ignored (and thus can be NULL). * It is probably a mistake to use NULL for output_flush_fn if * write_data_fn is not also NULL unless you have built libpng with * PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's * default flush function, which uses the standard *FILE structure, will * be used. */ extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr, png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); /* Replace the default data input function with a user supplied one. */ extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr, png_voidp io_ptr, png_rw_ptr read_data_fn)); /* Return the user pointer associated with the I/O functions */ extern PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr, png_read_status_ptr read_row_fn)); extern PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr, png_write_status_ptr write_row_fn)); #ifdef PNG_USER_MEM_SUPPORTED /* Replace the default memory allocation functions with user supplied one(s). */ extern PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)); /* Return the user pointer associated with the memory functions */ extern PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr)); #endif #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_LEGACY_SUPPORTED) extern PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp png_ptr, png_user_transform_ptr read_user_transform_fn)); #endif #if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_LEGACY_SUPPORTED) extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp png_ptr, png_user_transform_ptr write_user_transform_fn)); #endif #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ defined(PNG_LEGACY_SUPPORTED) extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp png_ptr, png_voidp user_transform_ptr, int user_transform_depth, int user_transform_channels)); /* Return the user pointer associated with the user transform functions */ extern PNG_EXPORT(png_voidp,png_get_user_transform_ptr) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_USER_CHUNKS_SUPPORTED extern PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr, png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)); extern PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp png_ptr)); #endif #ifdef PNG_PROGRESSIVE_READ_SUPPORTED /* Sets the function callbacks for the push reader, and a pointer to a * user-defined structure available to the callback functions. */ extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr, png_voidp progressive_ptr, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)); /* Returns the user pointer associated with the push read functions */ extern PNG_EXPORT(png_voidp,png_get_progressive_ptr) PNGARG((png_structp png_ptr)); /* Function to be called when data becomes available */ extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytep buffer, png_size_t buffer_size)); /* Function that combines rows. Not very much different than the * png_combine_row() call. Is this even used????? */ extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr, png_bytep old_row, png_bytep new_row)); #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr, png_uint_32 size)) PNG_ALLOCATED; #ifdef PNG_1_0_X # define png_malloc_warn png_malloc #else /* Added at libpng version 1.2.4 */ extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr, png_uint_32 size)) PNG_ALLOCATED; #endif /* Frees a pointer allocated by png_malloc() */ extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); #ifdef PNG_1_0_X /* Function to allocate memory for zlib. */ extern PNG_EXPORT(voidpf,png_zalloc) PNGARG((voidpf png_ptr, uInt items, uInt size)); /* Function to free memory for zlib */ extern PNG_EXPORT(void,png_zfree) PNGARG((voidpf png_ptr, voidpf ptr)); #endif /* Free data that was allocated internally */ extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 free_me, int num)); #ifdef PNG_FREE_ME_SUPPORTED /* Reassign responsibility for freeing existing data, whether allocated * by libpng or by the application */ extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, png_infop info_ptr, int freer, png_uint_32 mask)); #endif /* Assignments for png_data_freer */ #define PNG_DESTROY_WILL_FREE_DATA 1 #define PNG_SET_WILL_FREE_DATA 1 #define PNG_USER_WILL_FREE_DATA 2 /* Flags for png_ptr->free_me and info_ptr->free_me */ #define PNG_FREE_HIST 0x0008 #define PNG_FREE_ICCP 0x0010 #define PNG_FREE_SPLT 0x0020 #define PNG_FREE_ROWS 0x0040 #define PNG_FREE_PCAL 0x0080 #define PNG_FREE_SCAL 0x0100 #define PNG_FREE_UNKN 0x0200 #define PNG_FREE_LIST 0x0400 #define PNG_FREE_PLTE 0x1000 #define PNG_FREE_TRNS 0x2000 #define PNG_FREE_TEXT 0x4000 #define PNG_FREE_ALL 0x7fff #define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ #ifdef PNG_USER_MEM_SUPPORTED extern PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr, png_uint_32 size)) PNG_ALLOCATED; extern PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr, png_voidp ptr)); #endif extern PNG_EXPORT(png_voidp,png_memcpy_check) PNGARG((png_structp png_ptr, png_voidp s1, png_voidp s2, png_uint_32 size)) PNG_DEPRECATED; extern PNG_EXPORT(png_voidp,png_memset_check) PNGARG((png_structp png_ptr, png_voidp s1, int value, png_uint_32 size)) PNG_DEPRECATED; #if defined(USE_FAR_KEYWORD) /* memory model conversion function */ extern void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr, int check)); #endif /* USE_FAR_KEYWORD */ #ifndef PNG_NO_ERROR_TEXT /* Fatal error in PNG image of libpng - can't continue */ extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr, png_const_charp error_message)) PNG_NORETURN; /* The same, but the chunk name is prepended to the error string. */ extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr, png_const_charp error_message)) PNG_NORETURN; #else /* Fatal error in PNG image of libpng - can't continue */ extern PNG_EXPORT(void,png_err) PNGARG((png_structp png_ptr)) PNG_NORETURN; #endif #ifndef PNG_NO_WARNINGS /* Non-fatal error in libpng. Can continue, but may have a problem. */ extern PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr, png_const_charp warning_message)); #ifdef PNG_READ_SUPPORTED /* Non-fatal error in libpng, chunk name is prepended to message. */ extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr, png_const_charp warning_message)); #endif /* PNG_READ_SUPPORTED */ #endif /* PNG_NO_WARNINGS */ /* The png_set_<chunk> functions are for storing values in the png_info_struct. * Similarly, the png_get_<chunk> calls are used to read values from the * png_info_struct, either storing the parameters in the passed variables, or * setting pointers into the png_info_struct where the data is stored. The * png_get_<chunk> functions return a non-zero value if the data was available * in info_ptr, or return zero and do not change any of the parameters if the * data was not available. * * These functions should be used instead of directly accessing png_info * to avoid problems with future changes in the size and internal layout of * png_info_struct. */ /* Returns "flag" if chunk data is valid in info_ptr. */ extern PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 flag)); /* Returns number of bytes needed to hold a transformed row. */ extern PNG_EXPORT(png_uint_32,png_get_rowbytes) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifdef PNG_INFO_IMAGE_SUPPORTED /* Returns row_pointers, which is an array of pointers to scanlines that was * returned from png_read_png(). */ extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Set row_pointers, which is an array of pointers to scanlines for use * by png_write_png(). */ extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)); #endif /* Returns number of color channels in image. */ extern PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifdef PNG_EASY_ACCESS_SUPPORTED /* Returns image width in pixels. */ extern PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image height in pixels. */ extern PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image bit_depth. */ extern PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image color_type. */ extern PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image filter_type. */ extern PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image interlace_type. */ extern PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image compression_type. */ extern PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns image resolution in pixels per meter, from pHYs chunk data. */ extern PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp png_ptr, png_infop info_ptr)); extern PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp png_ptr, png_infop info_ptr)); extern PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp png_ptr, png_infop info_ptr)); /* Returns pixel aspect ratio, computed from pHYs chunk data. */ #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif /* Returns image x, y offset in pixels or microns, from oFFs chunk data. */ extern PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp png_ptr, png_infop info_ptr)); extern PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp png_ptr, png_infop info_ptr)); extern PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp png_ptr, png_infop info_ptr)); extern PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp png_ptr, png_infop info_ptr)); #endif /* PNG_EASY_ACCESS_SUPPORTED */ /* Returns pointer to signature string read from PNG header */ extern PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifdef PNG_bKGD_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_16p *background)); #endif #ifdef PNG_bKGD_SUPPORTED extern PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_16p background)); #endif #ifdef PNG_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr, png_infop info_ptr, double *white_x, double *white_y, double *red_x, double *red_y, double *green_x, double *green_y, double *blue_x, double *blue_y)); #endif #ifdef PNG_FIXED_POINT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point *int_white_x, png_fixed_point *int_white_y, png_fixed_point *int_red_x, png_fixed_point *int_red_y, png_fixed_point *int_green_x, png_fixed_point *int_green_y, png_fixed_point *int_blue_x, png_fixed_point *int_blue_y)); #endif #endif #ifdef PNG_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr, png_infop info_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)); #endif #ifdef PNG_FIXED_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)); #endif #endif #ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr, png_infop info_ptr, double *file_gamma)); #endif extern PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point *int_file_gamma)); #endif #ifdef PNG_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr, png_infop info_ptr, double file_gamma)); #endif extern PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr, png_infop info_ptr, png_fixed_point int_file_gamma)); #endif #ifdef PNG_hIST_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist)); #endif #ifdef PNG_hIST_SUPPORTED extern PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)); #endif extern PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 *width, png_uint_32 *height, int *bit_depth, int *color_type, int *interlace_method, int *compression_method, int *filter_method)); extern PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_method, int compression_method, int filter_method)); #ifdef PNG_oFFs_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type)); #endif #ifdef PNG_oFFs_SUPPORTED extern PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_int_32 offset_x, png_int_32 offset_y, int unit_type)); #endif #ifdef PNG_pCAL_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, png_charp *units, png_charpp *params)); #endif #ifdef PNG_pCAL_SUPPORTED extern PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp units, png_charpp params)); #endif #ifdef PNG_pHYs_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); #endif #ifdef PNG_pHYs_SUPPORTED extern PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)); #endif extern PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr, png_infop info_ptr, png_colorp *palette, int *num_palette)); extern PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr, png_infop info_ptr, png_colorp palette, int num_palette)); #ifdef PNG_sBIT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit)); #endif #ifdef PNG_sBIT_SUPPORTED extern PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_color_8p sig_bit)); #endif #ifdef PNG_sRGB_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr, png_infop info_ptr, int *intent)); #endif #ifdef PNG_sRGB_SUPPORTED extern PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr, png_infop info_ptr, int intent)); extern PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr, png_infop info_ptr, int intent)); #endif #ifdef PNG_iCCP_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charpp name, int *compression_type, png_charpp profile, png_uint_32 *proflen)); /* Note to maintainer: profile should be png_bytepp */ #endif #ifdef PNG_iCCP_SUPPORTED extern PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr, png_infop info_ptr, png_charp name, int compression_type, png_charp profile, png_uint_32 proflen)); /* Note to maintainer: profile should be png_bytep */ #endif #ifdef PNG_sPLT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_sPLT_tpp entries)); #endif #ifdef PNG_sPLT_SUPPORTED extern PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr, png_infop info_ptr, png_sPLT_tp entries, int nentries)); #endif #ifdef PNG_TEXT_SUPPORTED /* png_get_text also returns the number of text chunks in *num_text */ extern PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr, int *num_text)); #endif /* * Note while png_set_text() will accept a structure whose text, * language, and translated keywords are NULL pointers, the structure * returned by png_get_text will always contain regular * zero-terminated C strings. They might be empty strings but * they will never be NULL pointers. */ #ifdef PNG_TEXT_SUPPORTED extern PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, int num_text)); #endif #ifdef PNG_tIME_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr, png_infop info_ptr, png_timep *mod_time)); #endif #ifdef PNG_tIME_SUPPORTED extern PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr, png_infop info_ptr, png_timep mod_time)); #endif #ifdef PNG_tRNS_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytep *trans, int *num_trans, png_color_16p *trans_values)); #endif #ifdef PNG_tRNS_SUPPORTED extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr, png_infop info_ptr, png_bytep trans, int num_trans, png_color_16p trans_values)); #endif #ifdef PNG_tRNS_SUPPORTED #endif #ifdef PNG_sCAL_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, int *unit, double *width, double *height)); #else #ifdef PNG_FIXED_POINT_SUPPORTED extern PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr, png_infop info_ptr, int *unit, png_charpp swidth, png_charpp sheight)); #endif #endif #endif /* PNG_sCAL_SUPPORTED */ #ifdef PNG_sCAL_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr, png_infop info_ptr, int unit, double width, double height)); #else #ifdef PNG_FIXED_POINT_SUPPORTED extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, png_infop info_ptr, int unit, png_charp swidth, png_charp sheight)); #endif #endif #endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED /* Provide a list of chunks and how they are to be handled, if the built-in handling or default unknown chunk handling is not desired. Any chunks not listed will be handled in the default manner. The IHDR and IEND chunks must not be listed. keep = 0: follow default behaviour = 1: do not keep = 2: keep only if safe-to-copy = 3: keep even if unsafe-to-copy */ extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp png_ptr, int keep, png_bytep chunk_list, int num_chunks)); PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep chunk_name)); #endif #ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); extern PNG_EXPORT(void, png_set_unknown_chunk_location) PNGARG((png_structp png_ptr, png_infop info_ptr, int chunk, int location)); extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); #endif /* Png_free_data() will turn off the "valid" flag for anything it frees. * If you need to turn it off for a chunk that your application has freed, * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */ extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, png_infop info_ptr, int mask)); #ifdef PNG_INFO_IMAGE_SUPPORTED /* The "params" pointer is currently not used and is for future expansion. */ extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr, png_infop info_ptr, int transforms, png_voidp params)); extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, png_infop info_ptr, int transforms, png_voidp params)); #endif /* Define PNG_DEBUG at compile time for debugging information. Higher * numbers for PNG_DEBUG mean more debugging information. This has * only been added since version 0.95 so it is not implemented throughout * libpng yet, but more support will be added as needed. */ #ifdef PNG_DEBUG #if (PNG_DEBUG > 0) #if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) #include <crtdbg.h> #if (PNG_DEBUG > 1) #ifndef _DEBUG # define _DEBUG #endif #ifndef png_debug #define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE) #endif #ifndef png_debug1 #define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1) #endif #ifndef png_debug2 #define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2) #endif #endif #else /* PNG_DEBUG_FILE || !_MSC_VER */ #ifndef PNG_DEBUG_FILE #define PNG_DEBUG_FILE stderr #endif /* PNG_DEBUG_FILE */ #if (PNG_DEBUG > 1) /* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on non-ISO * compilers. */ # ifdef __STDC__ # ifndef png_debug # define png_debug(l,m) \ { \ int num_tabs=l; \ fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \ } # endif # ifndef png_debug1 # define png_debug1(l,m,p1) \ { \ int num_tabs=l; \ fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \ } # endif # ifndef png_debug2 # define png_debug2(l,m,p1,p2) \ { \ int num_tabs=l; \ fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \ } # endif # else /* __STDC __ */ # ifndef png_debug # define png_debug(l,m) \ { \ int num_tabs=l; \ char format[256]; \ snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ m,PNG_STRING_NEWLINE); \ fprintf(PNG_DEBUG_FILE,format); \ } # endif # ifndef png_debug1 # define png_debug1(l,m,p1) \ { \ int num_tabs=l; \ char format[256]; \ snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ m,PNG_STRING_NEWLINE); \ fprintf(PNG_DEBUG_FILE,format,p1); \ } # endif # ifndef png_debug2 # define png_debug2(l,m,p1,p2) \ { \ int num_tabs=l; \ char format[256]; \ snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ m,PNG_STRING_NEWLINE); \ fprintf(PNG_DEBUG_FILE,format,p1,p2); \ } # endif # endif /* __STDC __ */ #endif /* (PNG_DEBUG > 1) */ #endif /* _MSC_VER */ #endif /* (PNG_DEBUG > 0) */ #endif /* PNG_DEBUG */ #ifndef png_debug #define png_debug(l, m) #endif #ifndef png_debug1 #define png_debug1(l, m, p1) #endif #ifndef png_debug2 #define png_debug2(l, m, p1, p2) #endif extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr)); #ifdef PNG_MNG_FEATURES_SUPPORTED extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp png_ptr, png_uint_32 mng_features_permitted)); #endif /* For use in png_set_keep_unknown, added to version 1.2.6 */ #define PNG_HANDLE_CHUNK_AS_DEFAULT 0 #define PNG_HANDLE_CHUNK_NEVER 1 #define PNG_HANDLE_CHUNK_IF_SAFE 2 #define PNG_HANDLE_CHUNK_ALWAYS 3 /* Added to version 1.2.0 */ #ifdef PNG_ASSEMBLER_CODE_SUPPORTED #ifdef PNG_MMX_CODE_SUPPORTED #define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */ #define PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU 0x02 /* not user-settable */ #define PNG_ASM_FLAG_MMX_READ_COMBINE_ROW 0x04 #define PNG_ASM_FLAG_MMX_READ_INTERLACE 0x08 #define PNG_ASM_FLAG_MMX_READ_FILTER_SUB 0x10 #define PNG_ASM_FLAG_MMX_READ_FILTER_UP 0x20 #define PNG_ASM_FLAG_MMX_READ_FILTER_AVG 0x40 #define PNG_ASM_FLAG_MMX_READ_FILTER_PAETH 0x80 #define PNG_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */ #define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ | PNG_ASM_FLAG_MMX_READ_INTERLACE \ | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ | PNG_ASM_FLAG_MMX_READ_FILTER_UP \ | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ) #define PNG_MMX_WRITE_FLAGS ( 0 ) #define PNG_MMX_FLAGS ( PNG_ASM_FLAG_MMX_SUPPORT_COMPILED \ | PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU \ | PNG_MMX_READ_FLAGS \ | PNG_MMX_WRITE_FLAGS ) #define PNG_SELECT_READ 1 #define PNG_SELECT_WRITE 2 #endif /* PNG_MMX_CODE_SUPPORTED */ #ifndef PNG_1_0_X /* pngget.c */ extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask) PNGARG((int flag_select, int *compilerID)); /* pngget.c */ extern PNG_EXPORT(png_uint_32,png_get_asm_flagmask) PNGARG((int flag_select)); /* pngget.c */ extern PNG_EXPORT(png_uint_32,png_get_asm_flags) PNGARG((png_structp png_ptr)); /* pngget.c */ extern PNG_EXPORT(png_byte,png_get_mmx_bitdepth_threshold) PNGARG((png_structp png_ptr)); /* pngget.c */ extern PNG_EXPORT(png_uint_32,png_get_mmx_rowbytes_threshold) PNGARG((png_structp png_ptr)); /* pngset.c */ extern PNG_EXPORT(void,png_set_asm_flags) PNGARG((png_structp png_ptr, png_uint_32 asm_flags)); /* pngset.c */ extern PNG_EXPORT(void,png_set_mmx_thresholds) PNGARG((png_structp png_ptr, png_byte mmx_bitdepth_threshold, png_uint_32 mmx_rowbytes_threshold)); #endif /* PNG_1_0_X */ #ifndef PNG_1_0_X /* png.c, pnggccrd.c, or pngvcrd.c */ extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); #endif /* PNG_1_0_X */ #endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ /* Strip the prepended error numbers ("#nnn ") from error and warning * messages before passing them to the error or warning handler. */ #ifdef PNG_ERROR_NUMBERS_SUPPORTED extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp png_ptr, png_uint_32 strip_mode)); #endif /* Added at libpng-1.2.6 */ #ifdef PNG_SET_USER_LIMITS_SUPPORTED extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max)); extern PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp png_ptr)); #endif /* Maintainer: Put new public prototypes here ^, in libpng.3, and in * project defs */ #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED /* With these routines we avoid an integer divide, which will be slower on * most machines. However, it does take more operations than the corresponding * divide method, so it may be slower on a few RISC systems. There are two * shifts (by 8 or 16 bits) and an addition, versus a single integer divide. * * Note that the rounding factors are NOT supposed to be the same! 128 and * 32768 are correct for the NODIV code; 127 and 32767 are correct for the * standard method. * * [Optimized code by Greg Roelofs and Mark Adler...blame us for bugs. :-) ] */ /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */ # define png_composite(composite, fg, alpha, bg) \ { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) * (png_uint_16)(alpha) \ + (png_uint_16)(bg)*(png_uint_16)(255 - \ (png_uint_16)(alpha)) + (png_uint_16)128); \ (composite) = (png_byte)((temp + (temp >> 8)) >> 8); } # define png_composite_16(composite, fg, alpha, bg) \ { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) * (png_uint_32)(alpha) \ + (png_uint_32)(bg)*(png_uint_32)(65535L - \ (png_uint_32)(alpha)) + (png_uint_32)32768L); \ (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } #else /* Standard method using integer division */ # define png_composite(composite, fg, alpha, bg) \ (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \ (png_uint_16)127) / 255) # define png_composite_16(composite, fg, alpha, bg) \ (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \ (png_uint_32)(bg)*(png_uint_32)(65535L - (png_uint_32)(alpha)) + \ (png_uint_32)32767) / (png_uint_32)65535L) #endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ /* Inline macros to do direct reads of bytes from the input buffer. These * require that you are using an architecture that uses PNG byte ordering * (MSB first) and supports unaligned data storage. I think that PowerPC * in big-endian mode and 680x0 are the only ones that will support this. * The x86 line of processors definitely do not. The png_get_int_32() * routine also assumes we are using two's complement format for negative * values, which is almost certainly true. */ #ifdef PNG_READ_BIG_ENDIAN_SUPPORTED # define png_get_uint_32(buf) ( *((png_uint_32p) (buf))) # define png_get_uint_16(buf) ( *((png_uint_16p) (buf))) # define png_get_int_32(buf) ( *((png_int_32p) (buf))) #else extern PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf)); extern PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf)); extern PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf)); #endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ extern PNG_EXPORT(png_uint_32,png_get_uint_31) PNGARG((png_structp png_ptr, png_bytep buf)); /* No png_get_int_16 -- may be added if there's a real need for it. */ /* Place a 32-bit number into a buffer in PNG byte order (big-endian). */ extern PNG_EXPORT(void,png_save_uint_32) PNGARG((png_bytep buf, png_uint_32 i)); extern PNG_EXPORT(void,png_save_int_32) PNGARG((png_bytep buf, png_int_32 i)); /* Place a 16-bit number into a buffer in PNG byte order. * The parameter is declared unsigned int, not png_uint_16, * just to avoid potential problems on pre-ANSI C compilers. */ extern PNG_EXPORT(void,png_save_uint_16) PNGARG((png_bytep buf, unsigned int i)); /* No png_save_int_16 -- may be added if there's a real need for it. */ /* ************************************************************************* */ /* These next functions are used internally in the code. They generally * shouldn't be used unless you are writing code to add or replace some * functionality in libpng. More information about most functions can * be found in the files where the functions are located. */ /* Various modes of operation, that are visible to applications because * they are used for unknown chunk location. */ #define PNG_HAVE_IHDR 0x01 #define PNG_HAVE_PLTE 0x02 #define PNG_HAVE_IDAT 0x04 #define PNG_AFTER_IDAT 0x08 /* Have complete zlib datastream */ #define PNG_HAVE_IEND 0x10 #ifdef PNG_INTERNAL /* More modes of operation. Note that after an init, mode is set to * zero automatically when the structure is created. */ #define PNG_HAVE_gAMA 0x20 #define PNG_HAVE_cHRM 0x40 #define PNG_HAVE_sRGB 0x80 #define PNG_HAVE_CHUNK_HEADER 0x100 #define PNG_WROTE_tIME 0x200 #define PNG_WROTE_INFO_BEFORE_PLTE 0x400 #define PNG_BACKGROUND_IS_GRAY 0x800 #define PNG_HAVE_PNG_SIGNATURE 0x1000 #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ /* Flags for the transformations the PNG library does on the image data */ #define PNG_BGR 0x0001 #define PNG_INTERLACE 0x0002 #define PNG_PACK 0x0004 #define PNG_SHIFT 0x0008 #define PNG_SWAP_BYTES 0x0010 #define PNG_INVERT_MONO 0x0020 #define PNG_DITHER 0x0040 #define PNG_BACKGROUND 0x0080 #define PNG_BACKGROUND_EXPAND 0x0100 /* 0x0200 unused */ #define PNG_16_TO_8 0x0400 #define PNG_RGBA 0x0800 #define PNG_EXPAND 0x1000 #define PNG_GAMMA 0x2000 #define PNG_GRAY_TO_RGB 0x4000 #define PNG_FILLER 0x8000L #define PNG_PACKSWAP 0x10000L #define PNG_SWAP_ALPHA 0x20000L #define PNG_STRIP_ALPHA 0x40000L #define PNG_INVERT_ALPHA 0x80000L #define PNG_USER_TRANSFORM 0x100000L #define PNG_RGB_TO_GRAY_ERR 0x200000L #define PNG_RGB_TO_GRAY_WARN 0x400000L #define PNG_RGB_TO_GRAY 0x600000L /* two bits, RGB_TO_GRAY_ERR|WARN */ /* 0x800000L Unused */ #define PNG_ADD_ALPHA 0x1000000L /* Added to libpng-1.2.7 */ #define PNG_EXPAND_tRNS 0x2000000L /* Added to libpng-1.2.9 */ #define PNG_PREMULTIPLY_ALPHA 0x4000000L /* Added to libpng-1.2.41 */ /* by volker */ /* 0x8000000L unused */ /* 0x10000000L unused */ /* 0x20000000L unused */ /* 0x40000000L unused */ /* Flags for png_create_struct */ #define PNG_STRUCT_PNG 0x0001 #define PNG_STRUCT_INFO 0x0002 /* Scaling factor for filter heuristic weighting calculations */ #define PNG_WEIGHT_SHIFT 8 #define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT)) #define PNG_COST_SHIFT 3 #define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) /* Flags for the png_ptr->flags rather than declaring a byte for each one */ #define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 #define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002 #define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004 #define PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS 0x0008 #define PNG_FLAG_ZLIB_CUSTOM_METHOD 0x0010 #define PNG_FLAG_ZLIB_FINISHED 0x0020 #define PNG_FLAG_ROW_INIT 0x0040 #define PNG_FLAG_FILLER_AFTER 0x0080 #define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 #define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 #define PNG_FLAG_CRC_CRITICAL_USE 0x0400 #define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 #define PNG_FLAG_FREE_PLTE 0x1000 #define PNG_FLAG_FREE_TRNS 0x2000 #define PNG_FLAG_FREE_HIST 0x4000 #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000L #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000L #define PNG_FLAG_LIBRARY_MISMATCH 0x20000L #define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L #define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L #define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L #define PNG_FLAG_ADD_ALPHA 0x200000L /* Added to libpng-1.2.8 */ #define PNG_FLAG_STRIP_ALPHA 0x400000L /* Added to libpng-1.2.8 */ /* 0x800000L unused */ /* 0x1000000L unused */ /* 0x2000000L unused */ /* 0x4000000L unused */ /* 0x8000000L unused */ /* 0x10000000L unused */ /* 0x20000000L unused */ /* 0x40000000L unused */ #define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ PNG_FLAG_CRC_ANCILLARY_NOWARN) #define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \ PNG_FLAG_CRC_CRITICAL_IGNORE) #define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ PNG_FLAG_CRC_CRITICAL_MASK) /* Save typing and make code easier to understand */ #define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ abs((int)((c1).green) - (int)((c2).green)) + \ abs((int)((c1).blue) - (int)((c2).blue))) /* Added to libpng-1.2.6 JB */ #define PNG_ROWBYTES(pixel_bits, width) \ ((pixel_bits) >= 8 ? \ ((width) * (((png_uint_32)(pixel_bits)) >> 3)) : \ (( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) ) /* PNG_OUT_OF_RANGE returns true if value is outside the range * ideal-delta..ideal+delta. Each argument is evaluated twice. * "ideal" and "delta" should be constants, normally simple * integers, "value" a variable. Added to libpng-1.2.6 JB */ #define PNG_OUT_OF_RANGE(value, ideal, delta) \ ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) /* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */ #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) /* Place to hold the signature string for a PNG file. */ #ifdef PNG_USE_GLOBAL_ARRAYS PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sig[8]; #else #endif #endif /* PNG_NO_EXTERN */ /* Constant strings for known chunk types. If you need to add a chunk, * define the name here, and add an invocation of the macro in png.c and * wherever it's needed. */ #define PNG_IHDR png_byte png_IHDR[5] = { 73, 72, 68, 82, '\0'} #define PNG_IDAT png_byte png_IDAT[5] = { 73, 68, 65, 84, '\0'} #define PNG_IEND png_byte png_IEND[5] = { 73, 69, 78, 68, '\0'} #define PNG_PLTE png_byte png_PLTE[5] = { 80, 76, 84, 69, '\0'} #define PNG_bKGD png_byte png_bKGD[5] = { 98, 75, 71, 68, '\0'} #define PNG_cHRM png_byte png_cHRM[5] = { 99, 72, 82, 77, '\0'} #define PNG_gAMA png_byte png_gAMA[5] = {103, 65, 77, 65, '\0'} #define PNG_hIST png_byte png_hIST[5] = {104, 73, 83, 84, '\0'} #define PNG_iCCP png_byte png_iCCP[5] = {105, 67, 67, 80, '\0'} #define PNG_iTXt png_byte png_iTXt[5] = {105, 84, 88, 116, '\0'} #define PNG_oFFs png_byte png_oFFs[5] = {111, 70, 70, 115, '\0'} #define PNG_pCAL png_byte png_pCAL[5] = {112, 67, 65, 76, '\0'} #define PNG_sCAL png_byte png_sCAL[5] = {115, 67, 65, 76, '\0'} #define PNG_pHYs png_byte png_pHYs[5] = {112, 72, 89, 115, '\0'} #define PNG_sBIT png_byte png_sBIT[5] = {115, 66, 73, 84, '\0'} #define PNG_sPLT png_byte png_sPLT[5] = {115, 80, 76, 84, '\0'} #define PNG_sRGB png_byte png_sRGB[5] = {115, 82, 71, 66, '\0'} #define PNG_tEXt png_byte png_tEXt[5] = {116, 69, 88, 116, '\0'} #define PNG_tIME png_byte png_tIME[5] = {116, 73, 77, 69, '\0'} #define PNG_tRNS png_byte png_tRNS[5] = {116, 82, 78, 83, '\0'} #define PNG_zTXt png_byte png_zTXt[5] = {122, 84, 88, 116, '\0'} #ifdef PNG_USE_GLOBAL_ARRAYS PNG_EXPORT_VAR (png_byte FARDATA) png_IHDR[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_IDAT[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_IEND[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_PLTE[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_bKGD[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_cHRM[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_gAMA[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_hIST[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_iCCP[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_iTXt[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_oFFs[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_pCAL[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_sCAL[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_pHYs[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_sBIT[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_sPLT[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_sRGB[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_tEXt[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_tIME[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_tRNS[5]; PNG_EXPORT_VAR (png_byte FARDATA) png_zTXt[5]; #endif /* PNG_USE_GLOBAL_ARRAYS */ #if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Initialize png_ptr struct for reading, and allocate any other memory. * (old interface - DEPRECATED - use png_create_read_struct instead). */ extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr)) PNG_DEPRECATED; #undef png_read_init #define png_read_init(png_ptr) png_read_init_3(&png_ptr, \ PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); #endif extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr, png_const_charp user_png_ver, png_size_t png_struct_size)); #if defined(PNG_1_0_X) || defined (PNG_1_2_X) extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr, png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t png_info_size)); #endif #if defined(PNG_1_0_X) || defined (PNG_1_2_X) /* Initialize png_ptr struct for writing, and allocate any other memory. * (old interface - DEPRECATED - use png_create_write_struct instead). */ extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr)) PNG_DEPRECATED; #undef png_write_init #define png_write_init(png_ptr) png_write_init_3(&png_ptr, \ PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); #endif extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr, png_const_charp user_png_ver, png_size_t png_struct_size)); extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr, png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t png_info_size)); /* Allocate memory for an internal libpng struct */ PNG_EXTERN png_voidp png_create_struct PNGARG((int type)) PNG_PRIVATE; /* Free memory from internal libpng struct */ PNG_EXTERN void png_destroy_struct PNGARG((png_voidp struct_ptr)) PNG_PRIVATE; PNG_EXTERN png_voidp png_create_struct_2 PNGARG((int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr)) PNG_PRIVATE; PNG_EXTERN void png_destroy_struct_2 PNGARG((png_voidp struct_ptr, png_free_ptr free_fn, png_voidp mem_ptr)) PNG_PRIVATE; /* Free any memory that info_ptr points to and reset struct. */ PNG_EXTERN void png_info_destroy PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; #ifndef PNG_1_0_X /* Function to allocate memory for zlib. */ PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size)) PNG_PRIVATE; /* Function to free memory for zlib */ PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr)) PNG_PRIVATE; #ifdef PNG_SIZE_T /* Function to convert a sizeof an item to png_sizeof item */ PNG_EXTERN png_size_t PNGAPI png_convert_size PNGARG((size_t size)) PNG_PRIVATE; #endif /* Next four functions are used internally as callbacks. PNGAPI is required * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */ PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)) PNG_PRIVATE; #ifdef PNG_PROGRESSIVE_READ_SUPPORTED PNG_EXTERN void PNGAPI png_push_fill_buffer PNGARG((png_structp png_ptr, png_bytep buffer, png_size_t length)) PNG_PRIVATE; #endif PNG_EXTERN void PNGAPI png_default_write_data PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)) PNG_PRIVATE; #ifdef PNG_WRITE_FLUSH_SUPPORTED #ifdef PNG_STDIO_SUPPORTED PNG_EXTERN void PNGAPI png_default_flush PNGARG((png_structp png_ptr)) PNG_PRIVATE; #endif #endif #else /* PNG_1_0_X */ #ifdef PNG_PROGRESSIVE_READ_SUPPORTED PNG_EXTERN void png_push_fill_buffer PNGARG((png_structp png_ptr, png_bytep buffer, png_size_t length)) PNG_PRIVATE; #endif #endif /* PNG_1_0_X */ /* Reset the CRC variable */ PNG_EXTERN void png_reset_crc PNGARG((png_structp png_ptr)) PNG_PRIVATE; /* Write the "data" buffer to whatever output you are using. */ PNG_EXTERN void png_write_data PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)) PNG_PRIVATE; /* Read data from whatever input you are using into the "data" buffer */ PNG_EXTERN void png_read_data PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)) PNG_PRIVATE; /* Read bytes into buf, and update png_ptr->crc */ PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf, png_size_t length)) PNG_PRIVATE; /* Decompress data in a chunk that uses compression */ #if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \ defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) PNG_EXTERN void png_decompress_chunk PNGARG((png_structp png_ptr, int comp_type, png_size_t chunklength, png_size_t prefix_length, png_size_t *data_length)) PNG_PRIVATE; #endif /* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */ PNG_EXTERN int png_crc_finish PNGARG((png_structp png_ptr, png_uint_32 skip) PNG_PRIVATE); /* Read the CRC from the file and compare it to the libpng calculated CRC */ PNG_EXTERN int png_crc_error PNGARG((png_structp png_ptr)) PNG_PRIVATE; /* Calculate the CRC over a section of data. Note that we are only * passing a maximum of 64K on systems that have this as a memory limit, * since this is the maximum buffer size we can specify. */ PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr, png_size_t length)) PNG_PRIVATE; #ifdef PNG_WRITE_FLUSH_SUPPORTED PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)) PNG_PRIVATE; #endif /* Simple function to write the signature */ PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)) PNG_PRIVATE; /* Write various chunks */ /* Write the IHDR chunk, and update the png_struct with the necessary * information. */ PNG_EXTERN void png_write_IHDR PNGARG((png_structp png_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int compression_method, int filter_method, int interlace_method)) PNG_PRIVATE; PNG_EXTERN void png_write_PLTE PNGARG((png_structp png_ptr, png_colorp palette, png_uint_32 num_pal)) PNG_PRIVATE; PNG_EXTERN void png_write_IDAT PNGARG((png_structp png_ptr, png_bytep data, png_size_t length)) PNG_PRIVATE; PNG_EXTERN void png_write_IEND PNGARG((png_structp png_ptr)) PNG_PRIVATE; #ifdef PNG_WRITE_gAMA_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED PNG_EXTERN void png_write_gAMA PNGARG((png_structp png_ptr, double file_gamma)) PNG_PRIVATE; #endif #ifdef PNG_FIXED_POINT_SUPPORTED PNG_EXTERN void png_write_gAMA_fixed PNGARG((png_structp png_ptr, png_fixed_point file_gamma)) PNG_PRIVATE; #endif #endif #ifdef PNG_WRITE_sBIT_SUPPORTED PNG_EXTERN void png_write_sBIT PNGARG((png_structp png_ptr, png_color_8p sbit, int color_type)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_cHRM_SUPPORTED #ifdef PNG_FLOATING_POINT_SUPPORTED PNG_EXTERN void png_write_cHRM PNGARG((png_structp png_ptr, double white_x, double white_y, double red_x, double red_y, double green_x, double green_y, double blue_x, double blue_y)) PNG_PRIVATE; #endif #ifdef PNG_FIXED_POINT_SUPPORTED PNG_EXTERN void png_write_cHRM_fixed PNGARG((png_structp png_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)) PNG_PRIVATE; #endif #endif #ifdef PNG_WRITE_sRGB_SUPPORTED PNG_EXTERN void png_write_sRGB PNGARG((png_structp png_ptr, int intent)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_iCCP_SUPPORTED PNG_EXTERN void png_write_iCCP PNGARG((png_structp png_ptr, png_charp name, int compression_type, png_charp profile, int proflen)) PNG_PRIVATE; /* Note to maintainer: profile should be png_bytep */ #endif #ifdef PNG_WRITE_sPLT_SUPPORTED PNG_EXTERN void png_write_sPLT PNGARG((png_structp png_ptr, png_sPLT_tp palette)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_tRNS_SUPPORTED PNG_EXTERN void png_write_tRNS PNGARG((png_structp png_ptr, png_bytep trans, png_color_16p values, int number, int color_type)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_bKGD_SUPPORTED PNG_EXTERN void png_write_bKGD PNGARG((png_structp png_ptr, png_color_16p values, int color_type)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_hIST_SUPPORTED PNG_EXTERN void png_write_hIST PNGARG((png_structp png_ptr, png_uint_16p hist, int num_hist)) PNG_PRIVATE; #endif #if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) PNG_EXTERN png_size_t png_check_keyword PNGARG((png_structp png_ptr, png_charp key, png_charpp new_key)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_tEXt_SUPPORTED PNG_EXTERN void png_write_tEXt PNGARG((png_structp png_ptr, png_charp key, png_charp text, png_size_t text_len)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_zTXt_SUPPORTED PNG_EXTERN void png_write_zTXt PNGARG((png_structp png_ptr, png_charp key, png_charp text, png_size_t text_len, int compression)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_iTXt_SUPPORTED PNG_EXTERN void png_write_iTXt PNGARG((png_structp png_ptr, int compression, png_charp key, png_charp lang, png_charp lang_key, png_charp text)) PNG_PRIVATE; #endif #ifdef PNG_TEXT_SUPPORTED /* Added at version 1.0.14 and 1.2.4 */ PNG_EXTERN int png_set_text_2 PNGARG((png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, int num_text)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_oFFs_SUPPORTED PNG_EXTERN void png_write_oFFs PNGARG((png_structp png_ptr, png_int_32 x_offset, png_int_32 y_offset, int unit_type)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_pCAL_SUPPORTED PNG_EXTERN void png_write_pCAL PNGARG((png_structp png_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, png_charp units, png_charpp params)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_pHYs_SUPPORTED PNG_EXTERN void png_write_pHYs PNGARG((png_structp png_ptr, png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit, int unit_type)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_tIME_SUPPORTED PNG_EXTERN void png_write_tIME PNGARG((png_structp png_ptr, png_timep mod_time)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_sCAL_SUPPORTED #if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) PNG_EXTERN void png_write_sCAL PNGARG((png_structp png_ptr, int unit, double width, double height)) PNG_PRIVATE; #else #ifdef PNG_FIXED_POINT_SUPPORTED PNG_EXTERN void png_write_sCAL_s PNGARG((png_structp png_ptr, int unit, png_charp width, png_charp height)) PNG_PRIVATE; #endif #endif #endif /* Called when finished processing a row of data */ PNG_EXTERN void png_write_finish_row PNGARG((png_structp png_ptr)) PNG_PRIVATE; /* Internal use only. Called before first row of data */ PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr)) PNG_PRIVATE; #ifdef PNG_READ_GAMMA_SUPPORTED PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr)) PNG_PRIVATE; #endif /* Combine a row of data, dealing with alpha, etc. if requested */ PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row, int mask)) PNG_PRIVATE; #ifdef PNG_READ_INTERLACING_SUPPORTED /* Expand an interlaced row */ /* OLD pre-1.0.9 interface: PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info, png_bytep row, int pass, png_uint_32 transformations)) PNG_PRIVATE; */ PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr)) PNG_PRIVATE; #endif /* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ #ifdef PNG_WRITE_INTERLACING_SUPPORTED /* Grab pixels out of a row for an interlaced pass */ PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info, png_bytep row, int pass)) PNG_PRIVATE; #endif /* Unfilter a row */ PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr, png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter)) PNG_PRIVATE; /* Choose the best filter to use and filter the row data */ PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr, png_row_infop row_info)) PNG_PRIVATE; /* Write out the filtered row. */ PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr, png_bytep filtered_row)) PNG_PRIVATE; /* Finish a row while reading, dealing with interlacing passes, etc. */ PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr)); /* Initialize the row buffers, etc. */ PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr)) PNG_PRIVATE; /* Optional call to update the users info structure */ PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; /* These are the functions that do the transformations */ #ifdef PNG_READ_FILLER_SUPPORTED PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, png_bytep row, png_uint_32 filler, png_uint_32 flags)) PNG_PRIVATE; #endif #ifdef PNG_READ_SWAP_ALPHA_SUPPORTED PNG_EXTERN void png_do_read_swap_alpha PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED PNG_EXTERN void png_do_write_swap_alpha PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_INVERT_ALPHA_SUPPORTED PNG_EXTERN void png_do_read_invert_alpha PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED PNG_EXTERN void png_do_write_invert_alpha PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #if defined(PNG_WRITE_FILLER_SUPPORTED) || \ defined(PNG_READ_STRIP_ALPHA_SUPPORTED) PNG_EXTERN void png_do_strip_filler PNGARG((png_row_infop row_info, png_bytep row, png_uint_32 flags)) PNG_PRIVATE; #endif #if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) PNG_EXTERN void png_do_swap PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) PNG_EXTERN void png_do_packswap PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED PNG_EXTERN int png_do_rgb_to_gray PNGARG((png_structp png_ptr, png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED PNG_EXTERN void png_do_gray_to_rgb PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_PACK_SUPPORTED PNG_EXTERN void png_do_unpack PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_SHIFT_SUPPORTED PNG_EXTERN void png_do_unshift PNGARG((png_row_infop row_info, png_bytep row, png_color_8p sig_bits)) PNG_PRIVATE; #endif #if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) PNG_EXTERN void png_do_invert PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_16_TO_8_SUPPORTED PNG_EXTERN void png_do_chop PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_READ_DITHER_SUPPORTED PNG_EXTERN void png_do_dither PNGARG((png_row_infop row_info, png_bytep row, png_bytep palette_lookup, png_bytep dither_lookup)) PNG_PRIVATE; # ifdef PNG_CORRECT_PALETTE_SUPPORTED PNG_EXTERN void png_correct_palette PNGARG((png_structp png_ptr, png_colorp palette, int num_palette)) PNG_PRIVATE; # endif #endif #if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) PNG_EXTERN void png_do_bgr PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_PACK_SUPPORTED PNG_EXTERN void png_do_pack PNGARG((png_row_infop row_info, png_bytep row, png_uint_32 bit_depth)) PNG_PRIVATE; #endif #ifdef PNG_WRITE_SHIFT_SUPPORTED PNG_EXTERN void png_do_shift PNGARG((png_row_infop row_info, png_bytep row, png_color_8p bit_depth)) PNG_PRIVATE; #endif #ifdef PNG_READ_BACKGROUND_SUPPORTED #ifdef PNG_READ_GAMMA_SUPPORTED PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, png_color_16p trans_values, png_color_16p background, png_color_16p background_1, png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1, png_uint_16pp gamma_16, png_uint_16pp gamma_16_from_1, png_uint_16pp gamma_16_to_1, int gamma_shift)) PNG_PRIVATE; #else PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, png_color_16p trans_values, png_color_16p background)) PNG_PRIVATE; #endif #endif #ifdef PNG_READ_GAMMA_SUPPORTED PNG_EXTERN void png_do_gamma PNGARG((png_row_infop row_info, png_bytep row, png_bytep gamma_table, png_uint_16pp gamma_16_table, int gamma_shift)) PNG_PRIVATE; #endif #ifdef PNG_READ_EXPAND_SUPPORTED PNG_EXTERN void png_do_expand_palette PNGARG((png_row_infop row_info, png_bytep row, png_colorp palette, png_bytep trans, int num_trans)) PNG_PRIVATE; PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info, png_bytep row, png_color_16p trans_value)) PNG_PRIVATE; #endif /* The following decodes the appropriate chunks, and does error correction, * then calls the appropriate callback for the chunk if it is valid. */ /* Decode the IHDR chunk */ PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)); PNG_EXTERN void png_handle_IEND PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)); #ifdef PNG_READ_bKGD_SUPPORTED PNG_EXTERN void png_handle_bKGD PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_cHRM_SUPPORTED PNG_EXTERN void png_handle_cHRM PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_gAMA_SUPPORTED PNG_EXTERN void png_handle_gAMA PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_hIST_SUPPORTED PNG_EXTERN void png_handle_hIST PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_iCCP_SUPPORTED extern void png_handle_iCCP PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)); #endif /* PNG_READ_iCCP_SUPPORTED */ #ifdef PNG_READ_iTXt_SUPPORTED PNG_EXTERN void png_handle_iTXt PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_oFFs_SUPPORTED PNG_EXTERN void png_handle_oFFs PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_pCAL_SUPPORTED PNG_EXTERN void png_handle_pCAL PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_pHYs_SUPPORTED PNG_EXTERN void png_handle_pHYs PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_sBIT_SUPPORTED PNG_EXTERN void png_handle_sBIT PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_sCAL_SUPPORTED PNG_EXTERN void png_handle_sCAL PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_sPLT_SUPPORTED extern void png_handle_sPLT PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif /* PNG_READ_sPLT_SUPPORTED */ #ifdef PNG_READ_sRGB_SUPPORTED PNG_EXTERN void png_handle_sRGB PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_tEXt_SUPPORTED PNG_EXTERN void png_handle_tEXt PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_tIME_SUPPORTED PNG_EXTERN void png_handle_tIME PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_tRNS_SUPPORTED PNG_EXTERN void png_handle_tRNS PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif #ifdef PNG_READ_zTXt_SUPPORTED PNG_EXTERN void png_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; #endif PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, png_bytep chunk_name)) PNG_PRIVATE; /* Handle the transformations for reading and writing */ PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_init_read_transformations PNGARG((png_structp png_ptr)) PNG_PRIVATE; #ifdef PNG_PROGRESSIVE_READ_SUPPORTED PNG_EXTERN void png_push_read_chunk PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_read_sig PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_check_crc PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_crc_skip PNGARG((png_structp png_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_push_crc_finish PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_save_buffer PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_restore_buffer PNGARG((png_structp png_ptr, png_bytep buffer, png_size_t buffer_length)) PNG_PRIVATE; PNG_EXTERN void png_push_read_IDAT PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_process_IDAT_data PNGARG((png_structp png_ptr, png_bytep buffer, png_size_t buffer_length)) PNG_PRIVATE; PNG_EXTERN void png_push_process_row PNGARG((png_structp png_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_handle_unknown PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_push_have_info PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_have_end PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; PNG_EXTERN void png_push_have_row PNGARG((png_structp png_ptr, png_bytep row)) PNG_PRIVATE; PNG_EXTERN void png_push_read_end PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; PNG_EXTERN void png_process_some_data PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; PNG_EXTERN void png_read_push_finish_row PNGARG((png_structp png_ptr)) PNG_PRIVATE; #ifdef PNG_READ_tEXt_SUPPORTED PNG_EXTERN void png_push_handle_tEXt PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_push_read_tEXt PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; #endif #ifdef PNG_READ_zTXt_SUPPORTED PNG_EXTERN void png_push_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_push_read_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; #endif #ifdef PNG_READ_iTXt_SUPPORTED PNG_EXTERN void png_push_handle_iTXt PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 length)) PNG_PRIVATE; PNG_EXTERN void png_push_read_iTXt PNGARG((png_structp png_ptr, png_infop info_ptr)) PNG_PRIVATE; #endif #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ #ifdef PNG_MNG_FEATURES_SUPPORTED PNG_EXTERN void png_do_read_intrapixel PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info, png_bytep row)) PNG_PRIVATE; #endif #ifdef PNG_ASSEMBLER_CODE_SUPPORTED #ifdef PNG_MMX_CODE_SUPPORTED /* png.c */ /* PRIVATE */ PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr)) PNG_PRIVATE; #endif #endif /* The following six functions will be exported in libpng-1.4.0. */ #if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) PNG_EXTERN png_uint_32 png_get_pixels_per_inch PNGARG((png_structp png_ptr, png_infop info_ptr)); PNG_EXTERN png_uint_32 png_get_x_pixels_per_inch PNGARG((png_structp png_ptr, png_infop info_ptr)); PNG_EXTERN png_uint_32 png_get_y_pixels_per_inch PNGARG((png_structp png_ptr, png_infop info_ptr)); PNG_EXTERN float png_get_x_offset_inches PNGARG((png_structp png_ptr, png_infop info_ptr)); PNG_EXTERN float png_get_y_offset_inches PNGARG((png_structp png_ptr, png_infop info_ptr)); #ifdef PNG_pHYs_SUPPORTED PNG_EXTERN png_uint_32 png_get_pHYs_dpi PNGARG((png_structp png_ptr, png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); #endif /* PNG_pHYs_SUPPORTED */ #endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ /* Read the chunk header (length + type name) */ PNG_EXTERN png_uint_32 png_read_chunk_header PNGARG((png_structp png_ptr)) PNG_PRIVATE; /* Added at libpng version 1.2.34 */ #ifdef PNG_cHRM_SUPPORTED PNG_EXTERN int png_check_cHRM_fixed PNGARG((png_structp png_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, png_fixed_point int_blue_y)) PNG_PRIVATE; #endif #ifdef PNG_cHRM_SUPPORTED #ifdef PNG_CHECK_cHRM_SUPPORTED /* Added at libpng version 1.2.34 */ PNG_EXTERN void png_64bit_product PNGARG((long v1, long v2, unsigned long *hi_product, unsigned long *lo_product)) PNG_PRIVATE; #endif #endif /* Added at libpng version 1.2.41 */ PNG_EXTERN void png_check_IHDR PNGARG((png_structp png_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, int interlace_type, int compression_type, int filter_type)) PNG_PRIVATE; /* Added at libpng version 1.2.41 */ PNG_EXTERN png_voidp png_calloc PNGARG((png_structp png_ptr, png_uint_32 size)); /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ #endif /* PNG_INTERNAL */ #ifdef __cplusplus } #endif #endif /* PNG_VERSION_INFO_ONLY */ /* Do not put anything past this line */ #endif /* PNG_H */

N4m3	5!z3	L45t M0d!f!3d	0wn3r / Gr0up	P3Rm!55!0n5	0pt!0n5
..	--	October 20 2018 03:04:56	0 / 0	0755

png.h	158.186 KB	December 09 2015 13:53:13	0 / 0	0644
pngconf.h	49.797 KB	December 09 2015 13:53:13	0 / 0	0644

$.' ",#(7),01444'9=82<.342ÿÛ C 2!!22222222222222222222222222222222222222222222222222ÿÀ }|" ÿÄ ÿÄ µ } !1AQa "q2‘¡#B±ÁRÑð$3br‚ %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyzƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚáâãäåæçèéêñòóôõö÷øùúÿÄ ÿÄ µ w !1AQ aq"2B‘¡±Á #3RðbrÑ $4á%ñ&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz‚ƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚâãäåæçèéêòóôõö÷øùúÿÚ ? ÷HR÷j¹ûA <Ìƒ.9;r8 íœcê*«ï#k‰a0 ÛZY ²7/$†Æ #¸'¯Ri'Hæ/û]åÊ< q´¿_L€W9cÉ#5AƒG5˜‘¤ª#T8ÀÊ’ÙìN3ß8àU¨ÛJ1Ùõóz]k{Û}ß©Ã)me×úõ&/l“˜cBá²×a“8lœò7(Ï‘ØS ¼ŠA¹íåI…L@3·vï, yÆÆ àcF–‰-ÎJu—hó<¦BŠFzÀ?tãúguR‹u#‡{~?Ú•£=n¾qo~öôüô¸¾³$õüÑ»jò]Mä¦ >ÎÈ[¢à–?) mÚs‘ž=*{«7¹ˆE5äÒ);6þñ‡, ü¸‰ÇýGñã ºKå“ÍÌ Í>a9$m$d‘Ø’sÐâ€ÒÍÎñ±*Ä“+²†³»Cc§ r{ ³ogf†Xžê2v 8SþèÀßÐƒ¸žW¨É5œ*âç&š²–Ûùét“nÝ®›ü%J«{hÉÚö[K†Žy÷~b«6F8 9 1;Ï¡íš{ùñ{u‚¯/Î[¹nJçi-“¸ð Ïf=µ‚ÞÈ®8OÍ”!c H%N@<ŽqÈlu"š…xHm®ä<*ó7•…Á Á#‡|‘Ó¦õq“êífÛüŸ•oNÚ{ËFý;– ŠÙ–!½Òq–‹væRqŒ®?„ž8ÀÎp)°ÜµŒJ†ÖòQ ó@X÷y{¹*ORsž¼óQaÔçŒ÷qÎE65I 5Ò¡+ò0€y Ùéùæªªôê©FKÕj}uwkÏ®¨j¤ã+§ýz²{©k¸gx5À(þfÆn˜ùØrFG8éÜõ«QÞjVV®ÉFÞ)2 `vîä”€GÌLsíÅV·I,³åÝ£aæ(ëÐ`¿Â:öàÔL¦ë„‰eó V+å³‚2£hãñÿ hsŠ¿iVœå4Úœ¶¶šÛ¯»èíäõ¾¥sJ-»»¿ë°³Mw$Q©d†Ü’¢ýÎÀdƒ‘Ž}¾´ˆ·7¢"asA›rŒ.v@ ÞÇj”Y´%Š–·–5\Ü²õåË2Hã×°*¾d_(˜»#'<ŒîØ1œuþ!ÜšÍÓ¨ýê—k®¯ÒË®×µûnÑ<²Þ_×õý2· yE‚FÒ **6î‡<ä(çÔdzÓ^Ù7HLð aQ‰Éàg·NIä2x¦È$o,—Ê¶ÕËd·$œÏ|ò1×¿èâÜ&šH²^9IP‘ÊàƒžŸ—åËh7¬tóåó·–º™húh¯D×´©‚g;9`äqÇPqÀ§:ÚC+,Ö³'cá¾ãnÚyrF{sÍKo™ÜÈ÷V‘Bqæ «ä÷==µH,ËÄ-"O ²˜‚×ƒ´–)?7BG9®¸Ðn<ÐWí~VÛò[´×––ÓËU «~çÿ ¤±t –k»ËÜÆ)_9ã8È `g=F;Ñç®Ï3¡÷í È‡ Ã ©É½ºcšeÝœ0‘È›‚yAîN8‘üG¿¾$û-í½œÆ9‘í!ˆ9F9çxëøž*o_žIÆÖZò¥ÓºVùöõ¿w¦Ýˆæ•´ÓYÄ®³ËV£êƒæõç?áNòîn.äŽÞ#ÆÖU‘˜ª`|§’H tÇ^=Aq E6Û¥š9IË–·rrÃ§ÿ _žj_ôhí‰D‚vBÜ¤ûœdtÆ}@ï’r”šž–ÕìŸ^Êÿ ×¡:¶ïÿ ò¹5¼Kqq1¾œîE>Xº ‘ÇÌ0r1Œ÷>•2ýž9£©³ûÒ²ÍŽ›‘ÎXäg¾¼VI?¹*‡äÈ-“‚N=3ÐsÏ¿¾*{™ªù›·4ahKG9êG{©üM]+]¼«Ë¸ Š—mcÏ±‚y=yç¶:)T…JÉ>d»$Ýôùnµz2”¢åÍ ¬ ¼ÑËsnŠÜ«ˆS¨;yÛÊŽ½=px¥ŠÒæM°=ÕÌi*±€ Þ² 1‘Ž=qŸj†ãQ¾yæ»ŠA–,2œcR;ãwáÅfÊÈìT©#æä`žø jšøŒ59¾H·¯VÕÕûëçÚÝyµA9Ó‹Ñ?Çúþºš—QÇ ÔvòßNqù«¼!ç‚¹äç¿C»=:Öš#m#bYã†ð¦/(œúŒtè Qž CÍÂÉ¶ž ÇVB ž2ONOZrA óAÇf^3–÷ÉéÁëÇç\ó«·äƒütéß_-Ï¦nJ[/Ì|2Ï#[Ù–!’,Oä‘Ç|sVâ±Ô/|´–Iœ˜î$àc®Fwt+Ûø¿zÏTšyLPZ>#a· ^r7d\u ©¢•âÈ3 83…ˆDTœ’@rOéÐW†ÁP”S”Ü£ó[‰ÚßŽÚ;éÕNŒW“kîüÊ ¨"VHlí×>ZÜ nwÝÏ ›¶ìqÎ×·Õel¿,³4Æ4`;/I'pxaœÔñ¼";vixUu˜’¸YÆ1×#®:Ž T–ñÒ[{Kwi mð·šÙ99Î cÏ#23É«Ÿ-Þ3ii¶©»ÒW·•×~Ôí£Óúô- »yY Ýå™’8¤|c-ó‚<–þ S#3Ì‰q¡mÜI"«€d cqf üç× #5PÜý®XüØWtîßy¹?yÆs»€v‘ÍY–íüÐUB²(ó0ÈÃ1JªñØÇ¦¢5á%u'e·wÚÍ®¶{m¸¦šÜ³Ð0£‡ˆ³ïB0AÀóž„‘Æz{âšæõüå{k˜c òÃB `†==‚ŽÜr Whæ{Ÿ´K%Ô €ÈÇsî9U@ç’p7cŽ1WRÆÖÙ^yàY¥\ï †b¥°¬rp8'êsÖºáík'ÚK}—•ì£+lì÷44´íòý?«Ö÷0¤I"Ú³.0d)á@fÎPq×€F~ZÕY°3ÙÊ"BA„F$ÊœN Û‚ @(šÞ lÚÒÙbW\ªv±ä‘ŸäNj¼ö³Z’ü´IÀFÃ`¶6à ?! NxÇÒ©Ò†Oª²½’·ŸM¶{êºjÚqŒ©®èþ ‰ ’&yL%?yÕÃ”®$•Ï\p4—:…À—u½ä‘°Ýæ$aCß”$ñŸoÄÙ>TÓù¦ƒÂKÆÅÉ@¹'yè{žÝ4ÍKûcíCì vŽ…y?]Ol©Ê|Íê¾Þ_;üÿ Ï¡Rçånÿ rÔ’[m²»˜¡Ž4ùDŽ›Ë) $’XxËëšY8¹i•†Á!‘þpJ•V^0 Œ±õèi²Å²en%·„†8eeù²Yˆ,S†=?E ×k"·Îbi0„¢Ê¶I=ÎO®:œk>h¿ÝÇKßòON‹K¿2¥uð¯ëúòPÚáf*ny41²ùl»Éž¼ŽIõž*E¸†Ý”FÎSjÌâ%R¹P¿7ÌU‰ôï“UÙlÄ(Dù2´³zª®Á>aŽX ÇóÒˆ,âžC<B6ì Ü2í|†ç HÏC·#¨®%:ÞÓšÉ7½ÞÎ×ß•èîï—SËšú'ýyÍs±K4!Ì„0óŒ{£Øs÷‚çzŒð¹ã5æHC+Û=¼Í}ygn0c|œðOAô9îkÔ®£ŽÕf™¦»R#copÛICžÃ©þ :ñ^eñ©ðe·”’´ø‘¦f å— # <ò3ïÖ»ðŸ×©Æ¤•Ó½»ï®ß‹·ôµ4ù'ý_ðLO‚òF‹®0 &Ü§˜œ0Œ0#o8ç#ô¯R6Û“yŽ73G¹^2½öò~o»Ÿ›##ÞSðr=ÑkÒ41º €–rØ ÷„ëƒëÎ zõo7"Ýà_=Š©‰Éldà`†qt÷+‹?æxù©%m,ö{.¶jú;%÷hÌ*ß›Uý}Äq¬fp’}¿Í¹ ü¼î Ïñg$ý*{XLI›•fBÀ\BUzr€Œr#Ð€í¥ÛÍ+²(P”x›$ÅèçœŒž tëÐÕkÖ9‘ab‡Ïò³œã#G'’¼o«U¢ùœ×Gvº4µ¾vÕí}½œ¢ïb{{)¥P’ÊÒº#«Bç˜€8Êä6GË”dTmV³$g¸i&'r:ƒ¬1œàòœãƒÒ • rñ¤P©ÑØô*IÆ[ ÝÏN¸Î9_³[™#Kr.Fí¤í*IÁ?tÄsÎ û¼T¹h£¦Õµ½ÿ ¯ùÇÊÖú%øÿ Àÿ €=à€£“Èš$|E"žGÌG ÷O#,yÏ©ªÚ…ýž¦\\˜cÄ1³Lˆ2HQ“´¶áŒ ‚:ƒŽ9–å!Š–Í‚É¾F''‘÷yÇNüûãëpÆ|=~¢D•äµ•vn2„sÓžGLë IUP´Uíw®Ú-/mm£²×Ì–ìíeý]? øÑüa¨ÞZÏeki,q‰c10PTpAÜÀg%zSß°2Ä¤¡U]®ØŠÜçžI;€èpx?_øZÊ|^agDóí¹ )ÊžßJö‰¡E]È##ço™NO÷¸ÈÇÌ0¹9>™¯Sˆ°pÃc°ŠI¤÷õ¿å}Ë¯ JñGžÿ ÂÀ+ãdÒc³Qj'ÅØîs&vç6îíŽë»iÞbü” ‚Â%\r9àg·ùÍxuÁüMg~ŸÚÁÎÜ²çŽ0?*÷WšÝ^O*#†€1èwsÎsùRÏpTp±¢è¾U(«u}íùŠ´R³²ef À9³bíÝ¿Ùéì ùïíÌóÅ1ý–F‘œ‘åà’9Àç9ëÒ‹)ˆ”©±eÎ c×sù×Î{'ÎâÚõéßuOÁœÜºØ‰fe“e6ñžyäöÀoÆ§²‹„•%fˆ80(öåO½Oj…„E€T…%rKz°Î?.;{šXÙ‡ŸeUÚd!üx9þtã%wO_øoòcM- j–ÒHX_iK#*) ž@Ž{ôÇ½Bd¹‰RÝn–ê0«7Ë†ìyÀ÷Í@¬Ì¢³³’ 9é÷½?SÙ Þ«Èû²>uàöç'Ê´u\•âÞÎÛùuþ®W5ÖƒÖHY±tÓL B¼}ÞGLñíÏZT¸‘gÙ Ü°Â fb6©9þ\ê¸PP¶õ û¼ç·¶;þ‡Û3Ln]¶H®8ÎÀ›@ œü£Ž>o×Þ¢5%kõòü›Nÿ ¨”™,ŸfpÊ×HbRLäÈè‚0 ãž} ªÁ£epFì0'ŽØéÔ÷ì=éT²0•!…Îzt9ç¾?”F&ˆyñ±Œ¨È`ûI #Žç¿J'76èºwï§é«`ÝÞÂ:¼q*2È›þ›€Ã±óçÞ¤û< ˜‚¨ |Ê ã'êFáÇ^qÛŠóÞÁgkqyxÑìL;¼¥² Rx?‡¯Y7PŽwnù¶†û¾ÜÂ·.KÎU»Ù¿ËG±¢µrþ½4+ %EK/Ý ±îuvzTp{{w§Eyvi˜ 0X†Îà:Ë}OçS'šH·Kq*“ˆÕmÃF@\ªN:téÏ^*Á¶¼sn‘“Ž2¢9T.½„\ýò@>˜7NFïNRÓ·wèôßEÕua'¬[þ¾cö¡ÌOæ¦âÅŠ². Ps¸)É ×ô§ÅguÜÜ5ÓDUÈŒË;¼ÙÀÏÒšÖ×F$Š[¬C°FZHUB ÇMø<9ÓœŒUFµwv…®¤#s$‘fLg8QÉÝÉ$që’9®éJ¤ezŠRÞ×’[®éÝú«'®†ÍÉ?zï¶¥³u3(’MSsŽ0Û@9$Ð…-‘ß¦O"§gŠ+¢n'k/ ‡“$±-µ°1–éÜôä)®ae ·2ÆŠ¾gÛ°Z¹#€r ¶9Ç|Õ¨âºŽÖIÑÖÜÇ»1Bc.çqÁR àûu®Š^Õ½Smkß}uzëmSòiõÒ<Ï×õ—£Îî6{ˆmŽåVUòãv3ü¤œqÐŒç“œô¶Ô¶¢‹{• b„ˆg©ù@ÇRTóÅqinÓ·ò×l‡1`¯+òŸ¶ÐqžÀ:fÿ Âi£häÙjz…¬wˆÄË™RI'9n½øãœv®¸ÓmªUÛ•ôI-_kK{ièßvim£Qµý|ÎoÇßìü-~Ú}´j:ÃÍŠ|¸˜¨ó× qŒŒžy®w@øßq%å½¶³imoj0¿h·F;8À,›¹¸üyu¿üO'|;´ðÄÚ¦Œ%:t„Fáß~÷O¿júß©a)ZV”ºÝïëëýjkÞHöfÔ&–î#ö«aðå'Œ’¥\™Il`õ¸9©dûLì ‹t‘ƒ¸ó"Ä€‘Ê7ÈÛŽ:vÜ ¯/ø1â`!»Ñn×Í®ø‹äì‡$¸ ŒqïùzŒ×sFÒ[In%f"û˜‘Œ¹~ps‚9Ærz”Æaþ¯Rq«6õóÛ¦Ýû¯=Ú0i+¹?ÌH¢VŒý®òheIÖr›7îf 8<ó×+žÕç[ÂÖ€]ÇpßoV%v© €pzþgµ6÷3í‹Ì’{²„äˆƒŒ‚Ìr8Æ1“Áë^{ñqæo Ø‹–¸2ý|ÇÜ¬¬Žr=;zþ¬ò¼CúÝ*|+[zÛ£³µ×ß÷‘š¨Ûúü®Sø&ì¬…˜Có[¶âÈ¼3ûÜ÷<ŒñØæ½WÈŸÌX#“3 "²ºÆ7Œ‘Üc¼‡àìFy5xKJŒ"îç.r@ï×Þ½Ä-ÿ þ“}ª}’*Þ!,Fm¸Î@†9b?1W{Yæ3„`Ú¼VõŠÚÛ_kùöG.mhÎñ ôíhí§Ô$.ƒz*(iFá’I^™$ðMUÓ|áíjéb[ËÆºo•ñDdŽà¸'“ŽA Ö¼ƒGÑµ/krG É–i\ôÉêNHÀÈV—Š>êÞ´ŠúR³ÙÈùÑõLôÜ9Æ{jô?°°Kýš¥WíZ¿V—m6·E}{X~Æ? zžÓæ8Ë¢“«¼ 39ì~¼ûÒÍ}žu-ëÇ•cÉåmÀÀÉ9Àsþ ”økâŸí]:[[ÍÍyhª¬w•BN vÏ$ôé‘Íy‹ü@þ"×ç¹ ¨v[Æ¼* ã zœdžµâàxv½LT¨T•¹7jÿ +t×ð·CP—5›=Î ¨/"i¬g¶‘#7kiÃç±'x9#Ž}êano!òKD‘ílï”('¿SÔð?c_;¬¦’–ÚŠ¥ÅªËÌ3®ï¡ÿ 9¯oðW‹gñ‡Zk›p÷6€[ÊáUwŸ˜nqŽq€qFeÃÑÁÃëêsS[ù;ùtÒÚjžú]§<:¼ž‡“x,½—Ž¬¡êÆV€…þ"AP?ãÛ&£vÂÅ»I’FÙ8ÛžÀ”œ¾ÜRÜÌ¬ŠÛÓ‘–Ä*›qôúŸÃAÀëßí-L¶š-™ƒµ¦i”øÿ g«|è*pxF:nžîË¯Þ¼¿þBŒÛQþ¿C»Š5“*]Qÿ „±À>Ý:ôä*D(cXÚ(†FL¡‰`çØÏ;þ5âR|Gñ#3î`„0+µmÑ€ún Þ£ÿ …‰â¬¦0 –¶ˆœ€¹…{tø?Ê¯(_çþ_Š5XY[¡Ù|Q¿ú µŠ2ï¸›sO* Ð‘ÿ ×â°<+à›MkÂ÷š…Ä³ ·Ü–ˆ«ò‚?ˆœúäc½øåunû]¹Iïåè› ç ¯[ð&©¥Ýxn;6>}²’'`IË0ÁèN}zö5éâ©âr\¢0¥ñs^Ml¿«%®ýM$¥F•–ç‘Øj÷Ze¦£k 2¥ô"FqÀ`„~5Ùü+Ò¤—QºÕ†GÙ—Ë‹ çqä°=¶ÏûÔÍcá¶¡/ˆ¤[ý†iK ™°"ó•Æp;`t¯MÑt}+@²¶Óí·Ídy’3mÕË‘’zc€0 íyÎq„ž ¬4×5[_]Rë{]ì¬UZ±p÷^åØÞÈ[©&OúÝÛ‚‚s÷zžIïßó btÎÎª\ya¾U;C¤t*IÎFF3Š¸™c 1žYD…U° êÄàõë\oŒ¼a ‡c[[GŽãP‘7 â znÈ>Ãü3ñ˜,=lUENŒäô¾ÚÀÓ[_ð9 œ´JçMy©E¢Àí}x,bpAó¦üdcûŒW9?Å[Há$¿¹pÄ™#^9O88©zO=«Ë!µÖüY¨³ªÍy9ûÒ1Â úôÚ»M?àô÷«ÞëÖ–ÙMÌ#C&ßnJ“Üp#Ð‚~²†G–àíekÏµío»_žŸuÎ¨Q„t“ÔÛ²øáû›´W6»Øoy FQÎr $Óõìk¬„‹ïÞÚ¼sÆíòÉ67\míÎyF¯ð¯TÓã’K;ë[ð·ld«7üyíšÉð¯Šµ êáeYžÏq[«&vMÀðßFà}p3ÅgW‡°8ØßVín›þšõ³¹/ ü,÷ií|’‘´R,®ŠÉ‡W“Ž1ØöëÓ¾xžÖÞ¹xÞÝ¬XZGù\’vŒž˜ÆsØúÓïí&ÒÒ{]Qž9£Ê¡ù·ÄÀ»¶áHäž™5—ìö« -&ù¤U<±ÉÆA>½ý+æg jžöë¥¢þNÛ=÷JÖÛfdÔ õýËúû‹ÓØB²¬fInZ8wÌÉÐ®~aƒÎ=3ìx‚+/¶äÁlŠ‚?™Æü#8-œ\pqTZXtè%»»&ÚÝ#´ŠðÜžã§Í’¼{p·ß{m>ÞycP¨’¼¢0ú(Rƒë^Ž ñó¼(»y%m´ÕÙ}ÊûékB1¨þÑ®,#Q)ó‡o1T©ÜÃ*Ž‹‚yö<b‰4×H€“ìÐ. ¤²9ÌŠ>„Žãøgšñ ¯Š~)¸ßå\ÛÛoBŒa·L²œg$‚Iã¯ZÈ—Æ~%”äë—È8â)Œcƒ‘Âàu9¯b%)ÞS²¿Ïïÿ 4Öºù}Z/[H%¤vÉ#Ì’x§†b © ³´tÜ{gn=iï%õªÇç]Ü§—!åw„SÓp ·VÈÏ¡?5Âcâb¥_Ä¤Šz¬—nàþÖÎŸñKÄöJé=ÌWèêT‹¸÷qÎáƒŸ•q’zWUN«N/ØO^Ÿe|í¾©k{üõ4öV^ïù~G¹êzÂèº|·÷×[’Þ31†rpjg·n Æ0Ý}kåË‹‰nîe¹ËÍ+™ÏVbrOç]'‰¼o®xÎh`¹Ç*±ÙÚ!T$d/$žN>¼Wqá¯…Z9ÑÒO\ÜÛê1o&,-z ~^NCgNÕéá)ÒÊ©7‰¨¯'Õþ¯þ_¿Ehîþóâ €ï¬uÛûý*ÎK9ä.â-öv<²‘×h$àãúW%ö¯~«g-ÕõÀàG~>Zú¾Iš+(šM³ Û#9äl%ðc¬ ûÝ xÖKG´x®|¸¤Ï™O:Ê8Ã’qÉcÔä‚yÇNJyËŒTj¥&µOmztjÿ ?KëaµÔù¯áýóXøãLeb¾tžAÇû`¨êGBAõ¾•:g˜’ù·,þhÀ`¬qÜ` e·~+å[±ý“âYÄjWì—µHé±ø?Nõô>½âX<5 Ç©ÏÑ¼M¶8cÜªXŽÉ^r?¼IróÈS•ZmÇ›™5»òÚÚ7ïu«&|·÷•Î† >[©ÞXHeS$Œyà€ ÷ù²:ò2|óãDf? Z¼PD¶ÓßC(xÆ0|©ßR;ôMsÿ µ´ÔVi¬,Í¹›Ìxâi˜`¹,GAéÇlV§ÄýF×Yø§ê–‘:Ã=ò2³9n±ÉžØÏ@yÎWžæ±Ãàe„ÄÒN ]ïòêìú_Go'¦ŽÑ’_×õÐ¯ðR66þ!›ÑÄ gFMÙ— äžäqôÈ;ÿ eX<#%»Aö‰ãR¤ Í”Ž¹È G&¹Ÿƒ&á?¶Zˆ±keRè Kãnz·ãŠÕøÄÒÂ9j%@®×q±ÜŒý[õ-É$uíè&¤¶9zÇï·Oøï®ÄJKšÖìdü"µˆ[j×²Îc;ã…B(g<9nàÈ¯G½µŸPÓ.´Éfâ¼FŽP 31 ‘ÏR}<3šä~ Ã2xVöî Dr Ç\›}Ý#S÷ÈÀëŽHÆI®à\OçKuäI¹†ó(”—GWî ñ³¹¸æ2¨›‹ºÚû%¾ýÖ_3ºNú¯ëúì|ÕÅÖ‰}ylM’ZËîTÿ á[ðÐñ/ˆ9Àû ¸ón3 MÃ²d‘÷ döª^.ÊñŽ°›BâîNp>cëÏçÍzïÃôÏ YÍ%ª¬·ãÏ-*9ÜÂãhéŒc¾dÈêú¼Ë,. VŠ÷çeÿ n/¡¼äãõâ=‹xGQKx”|¹bÌŠD@2Œ 8'Ž àúƒŽ+áDÒ&¡¨"Œ§–Žr22 Ç·s]ŸÄ‹«ð%ÚÄ<¹ä’(×{e›HÀqÁç©Ç½`üŽÚõKé¥š9ƒÄ±€<–úƒú~ çðñO#Í%iKKlµ¦¾F)'Iê¬Î+Ç(`ñ¾£œdÈ’`™ºcßéé^ÿ i¸”Û\ý¡æhÔB«aq¸}ãÀÆ:ÜWƒ|FÛÿ î©±BŒÇÀeaŸ-sÊ€:úW½ÜÝÜ<%$µ†%CóDªÀí%IÈÏÊ¤…ôäñÞŒ÷‘a0“ôŽÚë¤nŸoW÷0«e¶y'Å»aÎ—2r’# Û°A^ý9ÉQÔõ=ù5¬£Öü.(Þ’M$~V«=éSÄFN½®©ÔWô»ÿ þHžkR‹ìÏ+µµžöê;khÚI¤m¨‹Ôš–âÖçJ¾_Z•’6a”Èô> ÕÉaÕ<%®£2n bQŠå\tÈõUÿ ø»þ‹k15‚ÃuCL$Ý¹p P1=Oøýs¯^u éEJ”–éêŸê½5ýzy›jÛ³á›Ûkÿ ÚOcn±ÛÏîW;boºz{ãžüVÆ¡a£a5½äÎÂks¸J@?1è¿{$ä‘=k”øsÖ^nŒ¦)ÝåXÃíùN1ØõÚOJë–xF÷h¸ Œ"Ž?xäœšü³ì¨c*Fœ¯i;7~ñí×«Ðó¥Ë»3Ãü púw ‰°<Á%»ñž ÿ P+Û^ ¾Ye£ŽCÄŒ„/>˜>•á¶Ìm~&&À>M[hÈÈÿ [Ž•íd…RO@3^Ç(Ê½*¶ÖQZyßþ 1Vº}Ñç?¼O4Rh6R€ª£í¡ûÙ a‚3ß·Õ ü=mRÍ/µ9¤‚0ÑC¼Iè:cŽsÛ¾™x£ÆÐ¬ªÍöË¢ìƒ’W$•€Å{¨ÀPG ÀÀàŸZìÍ1RÉ0´ðxEË9+Éÿ ^rEÕ—±Š„70l¼áË@û.' ¼¹Žz€N3úUÉ<3á×*?²¬‚ä†"Ùc=p íÛ'¡ª1ñ"økJ†HÒ'»Ÿ+ oÏN¬Ã9 dÙãÜ×“ÏâÍ~æc+j·Jzâ7(£ðW]•æ™?nê´º6åwéåç÷N•ZŠíž›¬|?Ðõ?Ñ-E…Â®³ÇV$~X¯/…õ x‘LˆÑÜÚÈ7¦pzãÜüë½ðÄ^õtÝYËÍ7ÉÖÕ8ÏUe# #€r=sU¾/é’E§jRC4mxNÝ´9†íuá»›V‘ ZI€×cr1Ÿpzsøf»¨åV‹ìû`qËLÊIã?\~¼³áËC©êhªOîO»‘ÃmçÛçút×¢x“Z}?Ãœê#b-¤X7õÄò gž zzbº3œm*qvs·M=íúéw}¿&Úª°^Ö×µÏ(ø‡â†Öµƒenñý†×åQáYûœ÷ÇLœôÎNk¡ðÂ‡¼/µ¸n0æÉ0¬ƒ‚üîÉÆvŒw®Sáö”š¯‹-üÕVŠØÙ[$`(9cqƒÔ_@BëqûÙ`Ýæ0;79È?w<ó |ÙÜkßÌ1±Ëã¿ìÒ»ðlìï«ÓnªèèrP´NÏÂš&ŽéöÙ¸÷æ°~-_O'‰`°!RÚÚÝ%]Ø%þbß1'¿ÿ XÕáOöÎŒ·‹¬+Åæ*ÛÛ™0¤ƒOÍÔ`u¯¦ÂaèÐÃÓ«‹¨Ô¥µœ¿¯ÉyÅÙ.oÔôŸ Úx&(STðÝ½¦õ] ’ÒNóÁäÈùr3í·žÚ[™ƒ¼veÈÃ·ÞIõÎGlqÎ=M|«gsªxÅI6 ]Z·Îªä,¨zŒŽÄ~#ØŠúFñî™ªiÉqc©éÐD>Së”‘ GñŽ1éÐ^+ Ëi;Ô„µVÕú»i¯ÈÒ-ZÍ]òÜ˜®ì`bÛÙ¥_/y(@÷qÐúg Ô÷W0.Ø› 6Ò© r>QƒŒ0+Èîzb¨É+I0TbNñ"$~)ÕÒ6Þ‹{0VÆ27œWWñcÄcX×íôûyKZéðªc'iQ¿¯LaWŠŸS\·Š“ÅºÊ¸…ôÙÂí|öÀÇåV|!¤ÂGâÛ[[’ï 3OrÙËPY¹=Î1õ5öåTžÑè Ú64/üö?Zëžk}¬¶éàoá¾á}3“ü]8Éæ¿´n²Žš_6¾pœ)2?úWÓÚ¥¾¨iWúdŽq{*ª1rXŒd…m»‰äcô¯–dâ•ã‘Jº¬§¨#¨®§,df«8ÉÅßN¾hˆ;îÓ=7áùpën®É 6ûJžO2^œÐò JÖø¥²ãÂ›Ò6Ü·‰!wbÍ‚¬O©»õ¬ÿ ƒP=Ä:â¤-&ÙŽ `È9 r9íÏ§zë> XÅ7ƒ5X–krÑ¢L7€ìw}ÑŸNHëŒüþ:2†á¼+u·á÷N/Û'Ðç~ß˜ô«ëh!ónRéeQ´6QÛÿ èEwëÅÒ|¸Yqó1uêyùzð8 ƒŠù¦Ò;¹ä6öi<'ü³„[ÃZhu½ ùÍ¡g‚>r¯×ŠîÌx}bñ2“kê£§oø~›hTèóËWò4|ki"xßQ˜Ï6øÀLnß‚0 ¹Æ{±–¶Öe#¨27È@^Ìß.1N¾œyç€õ†ñeé·Õã†çQ°€=Ì©ºB€Ø8<‚ÃSõ®ùcc>×Ú .Fr:žÝGæ=kÁâ,^!Fž ¬,àµ}%¶«îõ¹†"r²ƒGœüYÕd?aÑÃY®49PyU ÷þ!žxÅm|/‚ãNð˜¼PcûTÒ,¹/Ý=FkÏ|u¨¶«âë…{¤m¢]Û¾ïP>®XãÞ½iÓÁ¾ ‰'¬–6ß¼(„ï— í!úÙäzôë^–:œ¨å|,_¿&š×]uÓÑµÛô4’j”bž§x‘Æ©ã›á,‚[Ã” ÎÞ= î®ˆŒËæ ÀùYÁ?ŽïÚ¼?ÁªxºÕÛ,°1¸‘¿ÝäãØ¯v…@¤åq½ºã œàûââ·z8Xýˆþz~—û»™âµj=Ž â~ãáh@'h¼F#·Üp?ŸëQü-løvépx»cŸø…lxâÃûGÂ·‰¶ø”L£©%y?¦úõÆü-Õ¶¥y`Òl7>q’2üA?•F}c‡jB:¸Jÿ +§¹¿¸Q÷°ív=VÑìu[Qml%R7a×IèTõéŽx¬ ?†š7 1†îã-ˆã’L¡lŽ0OÓ=ÅuˆpÇ•¼3ÛùÒ¶W/!|’wŽw^qÔ×ÏaóM8Q¨ãÑ?ëï0IEhÄa¸X•`a ?!ÐñùQ!Rä ÂžqŽžÝO`I0ÿ J“y|ñ!Îã@99>þ8–+éáu…!ù—ä Ê°<÷6’I®z ÅS„¾)Zþ_Öýµ×ËPåOwø÷þ*üïænÖùmØÝûþ¹=>¦½öî×Jh]¼ç&@§nTŒ6ITÀõ^Fxð7Å3!Ö·aÛ$þÿ ¹ã5îIo:ÈªmËY[’8ÇÓ¾Ç‰*òû¢¥xõ¾¼ú•åk+\ð¯ HÚoŽl•Ûk,¯ ç²²cõÅ{²Z\ ´ìQ åpzŽ3Ôð}ÿ Jð¯XO¡øÎé€hÙ¥ûLdŒ`““ù6Gá^ÃáÝ^Ë[Ñb¾YåŒÊ»dŽ4†2§,;ÿ CQÄ´¾°¨c–±”mºV{«ßÕýÄW\ÖŸ‘çŸ,çMRÆí“l-ƒn~ë©ÉÈê Ü?#Ž•¹ðãSÒ¥ÐWNíà½;ãž)™ÎSÈ9cóLjëµ¿Å«iÍk¨ió¶X‚7÷ƒ€yãnyÏŽëÞ Öt`×À×V's$È9Ú:ä{wÆEk€«†Çàc—â$éÎ.éí~Ýëk}ÅAÆpörÑ¢‡Šl¡ÑüSs‹¨‰IÃ„óÀ×wñ&eºðf™pŒÆ9gŽTø£lñëÀçŽ NkÊUK0U’p ï^¡ãÈ¥´ø{£ÙHp`’ØåbqÏ©äó^Æ: Ž' ÊóM«õz+ß×ó5Ÿ»('¹ð¦C„$˜Å¢_ºÈI?»^äã'ñêzž+ë€ñ-½»´}¡Ë*õ?.xÇ^1ŽMyÇÂ¸&“Â—L–îëöâ7…' bqéÎGé]Ëªâ1$o²¸R8Ã`.q€}sÖ¾C98cêÆÞíïóòvÓòùœÕfÔÚéýuèÖ·Ú Å‚_¤³ÜÛºÆ‘ÃŸ”à×¨ý:×ƒxPþÅÕî-/üØmnQìïGÎŠÙRqê=>¢½õnæ·r!—h`+’;ò3È<“Û©éšóŸx*÷V¹¸×tÈiˆßwiÔÿ |cŒñÏ®3Ö½Ì°‰Ë Qr©ö½®¼ÛoÑÙZÅÑ«Oàµ¯ýw8;k›ÿ x†;ˆJa;‘º9÷÷R+¡ñgŽí|Iáë{ôáo2Ê²9 029ÉÏLí\‰¿¸Ÿb˜ "Bv$£&#ßiê>=ªª©f ’N ëí>¡NXW~5×úíø\‰»½Ï^ø(—wÖú¥¤2íŽÞXæÁ$°eÈ888^nÝë²ñÝÔ^ ÖÚ9Q~Ëå7ï DC¶ÑµƒsËÇè9®Wáþƒ6‡£´·°2\Ý:ÈÑ?(#¨'$õèGJ¥ñW\ÿ ‰E¶—¸™g˜ÌÀ¹;Pv ú±ÎNs·ëŸ’–"Ž/:té+ûË]öJöÓM»ëø˜*‘•^Uý—êd|‰åñMæÔÝ‹23å™6æHùÛ‚ëüñ^…ñ1¢oêûÑEØ.õ7*ÅHtÎp{g<·Á«+¸c¿¿pÓ¾Æby=8É_ÄsÆk¬ñB\jÞÔì••Ë[9Píb‹Bãƒ… =93§ð§LšÛáÖšÆæXÌÞdÛP.0\ãïÛ0?™úJ¸™Ë ”•œº+=<µI£¦í¯õêt¬d‹T¬P=ËFêT>ÍØØ@Ï9<÷AQÌ×»Õ¡xùk",JÎæù±Éç$œŽŸZWH®¯"·UÌQÂ ’ÙÈ]ÅXg<ã ß¨g3-Üqe€0¢¨*Œ$Üƒ ’Sû 8ãŽ¼_/e'+Ï–-èÓ¶¶Õíß[·ÙÙ½îì—¼sk%§µxä‰â-pÒeÆCrú ôÏƒžû=”šÅô(QW‚Õd\ƒæ. \àö¹¯F½°³½0M>‘gr÷q+œ¶NïºHO— ¤ Ü¥Ý”n·J|ÆP6Kµc=Isó}Ò çGš)a=—#vK›åoK§ßóÙ¤¶¿õú…ÄRÚ[ËsöÙ¼Ë•Ë ópw®qœŒ·Ø ùÇâ‹ý‡ãKèS&ÞvûDAù‘É9ŒîqÅ} $SnIV[]Ñ´Ó}ØÜ¾A Ü|½kÅþÓ|EMuR¼.I¼¶däò‚ÃkÆ}ðy¹vciUœZ…Õõ»z¾÷¿n¦*j-É/àœHã\y5 Û ß™ó0—äŸnzôã#Ô¯,†¥ÚeÔ÷ÜÅ´„“'c…<íÝ€<·SŠ¥k§Ã¢éÆÆÙna‚8–=«Êª[Ÿ™°pNî02z“ÔÙ–K8.È’Þî(vƒ2®@ äÈûãçžxäÇf¯ˆu¹yUÕîýWšÙ|›ëÒ%Q^í[æ|éo5ï‚¼ZY•^{96ˆY‚§v*x>âº_|U¹Ö´©tûMÒÂ9PÇ#«£#€ éÉñ‘ƒÍz/‰´-Ä¯¹°dd,Ð‘›p03ƒœ{ç9=+ Ûá§‡¬¦[‡‚êå©º¸#±ß=³ý¿•Õµjñ½HÙh›Û[§ÚýÊöô÷{˜?ô÷·Ô.u©–_%còcAÀ˜’ }0x9Î>žñÇáÍ9,ahï¦Ì2òÓ ñÛAäry$V²Nð ]=$Ž ‚#Ù‚1ƒƒødõMax‡ÂÖ^!±KkÛ‘ «“Çó²FN8+ëÎ{Ò¼oí§[«ÕMRoËeç×[_m/¦¦k.kôgŽxsSÓ´ý`êzªÜÜKo‰cPC9ÎY‰#§^üý9¹âïÞx£Ë·Ú`±‰‹¤;³–=ÏaôÕAð‚÷kêÁNBéÎælcõö®£Fð†ô2Ò¬]ßÂK$ÓÜ®•”/ÊHàã$ä¸÷ëf¹Oµúâ“”’²øè´µþöjçNü÷üÌ¿ xNïFÒd»¼·h®îT9ŽAµÖ>qÁçÔœtïÒ»\È¶ÎîcÞäîó3¶@#ÉIÎ ÔñW.<´’¥–ÑÑ€ÕšA‚ ;†qÓë‚2q ÒÂó$# Çí‡ !Ë}Õ9ÈÎÑÉã=;ŒÇÎuñ+ÉûÏ¥öíeÙ+$úíÜå¨¯'+êZH4ƒq¶FV‹gïŒ208ÆÌ)íÐ±>M|÷âÍãÂ¾"iì‹¥£Jd´™OÝç;sÈúr+ÜäˆË)DŒ¥šF°*3Õ”d{zÔwºQ¿·UžÉf†~>I+ŒqÔ`ð3œ“Ü×f]œTÁÔn4“ƒø’Ýßõ_«*5šzGCÊ,þ+ê1Ã²÷O¶¸cœºb2yÇ;cùÕ£ñh¬›áÑŠr¤ÝäNBk¥—á—†gxšX/ì‘˜hŸ*Tçn =ûã¦2|(ð¿e·ºÖ$ ýìŸ!'åÎ°yîî+×öœ=Y:²¦ÓÞ×iü’—ü -BK™£˜›âÆ¡&véðõ-ûÉY¹=Onj¹ø¯¯yf4·±T Pó`çœ7={×mÃ/¢˜ZÚòK…G½¥b„’G AãÜœ*í¯Ã¿ IoæI¦NU8‘RwÈã;·€ Û×ëÒ”1Y •£E»ÿ Oyto¢<£Áö·šï,ä‰§ûA¼sû»Nò}¹üE{ÜÖªò1’õÞr0â}ÎØ#>à/8ïéÎ~—áÍ#Ã±Îlí§³2f'h”?C÷YËdð:qëõÓ·‚ïeÄ© ÔÈØÜRL+žAÎ3¼g=åšó³Œt3 ÑQ¦ùRÙßE®¼±w_;þhš’Sirÿ ^ˆã¼ià©‡|RòO„m°J/“$·l“ ÇÓ¿ÿ [ÑŠÆ“„†Õø>cFÆ6Ø1ƒ– àz7Ldòxäüwá‹ÝAXùO•Úý’é®ähm •NÀ±ÌTÈç ƒ‘I$pGž:‚ÄbêW¢®œ´|¦nÍ>¶ÖÏ¢§ÎÜ¢ºö¹•%ÄqL^öÛKpNA<ã¡ …î==ª¸óffËF‡yÌcÉ ©ç$ð=ñÏYþÊ’Ú]—¥‚¬‚eDïÎH>Ÿ_ÌTP™aÂ‰ch['çÆÜò7a‡?w°Ïn§âÎ5”’¨¹uÚÛ|´ÓÓc§{O—ü1•ªxsÃZ…ÊÏy¡Ã3¸Ë2Èé» ‘ƒÎ äžÜðA§cáOéúÛ4ý5-fŒï„ù¬ûô.Ç Üsž•Ò¾•wo<¶Ÿ"¬¡º|£ î2sÇ¡éE²ÉFÑ±rU°dÜ6œ¨ mc†Îxë×ºÞ'0²¡Rr„{j¾í·è›µ÷)º·å–‹î2|I®Y¼ºÍË·–ÃÆàã£'óÆxƒOÆÞ&>\lóÌxP Xc¸ì Sþ5§qà/ê>#žÞW¸if$\3 ® ûÄ“ùŽÕê¾ð<Ó‹H¶óÏ" å·( á‘€:ã†8Ï=+ê¨¬UA×ÃËÚT’ÑÞöù¥¢]{»ms¥F0\ÑÕ—ô}&ÛB´ƒOŽÚ+›xíÄÀ1 ,v± žIëíZ0Ç§™3í2®0à¸—p9öÝÔž)ÓZËoq/Ú“‘L ²ŒmùŽï‘Ó9§[Û#Ä‘\ÞB¬Çs [;à à«g‚2ôòªœÝV§»·¯/[uó½õÛï¾ /šÍ}öüÿ «=x»HŸÂÞ.™ ÌQùŸh´‘#a$‚'¡u<Š›Æ>2>+ƒLSiöwµFó1!eg`£åœ ÷ëÛö}Á¿ÛVÙêv $¬ƒ|,s÷z€ðÎƒ¨x÷ÅD\ÜŒÞmåÔ„ ˆ o| :{ÇÓ¶–òÁn!´0Ål€, ƒ ( ÛŒŒc¶rsšæ,4‹MÛOH!@¢ ÇŽ„`å²9ÝÃw;AÍt0®¤¡…¯ØÄ.Àìí´ƒ‘ßñ5Í,Óëu-ÈÔc¢KÃÓ£òÖÌºU.õL¯0…%2È—"~x ‚[`có±nHàŽyàö™¥keˆìŒÛFç{(Ø©†`Jã#Žwg<“:ÚÉ;M ^\yhûX‡vB·÷zrF?§BÊÔ/s<ÐÈB)Û± ·ÍÔwç5Âã:så§e{mÑ¤ï«Òíh—]Wm4âí¿ùþW4bC3¶ª¾Ùr$pw`àädzt!yŠI„hÂîàM)!edŒm'æ>Ç?wzºKìcŒ´¯Ìq6fp$)ãw¡éUl`µ»ARAˆÝÕgr:äŒgƒéé[Ôö±”iYs5Ýï«ÙG—K=þF’æMG«óÿ `ŠKÉ¦uOQ!ÕåŒ/ÎGÞ`@ËqÕzdõâ«Ê/Ö(ƒK´%ŽbMüåÜŸö—>¤óŒŒV‘°„I¢Yž#™¥ùÏÊ@8 œgqöö5ª4v×“[¬(q cò¨À!FGaÁõõ¯?§†¥ÏU½í¿WªZ$úyú½Žz×§Éþ?>Ã×È•6°{™™ŽÙ.$`ÎUœ…çè ' ¤r$1Ø(y7 ðV<ž:È ÁÎMw¾Â'Øb§øxb7gãÐž½óÉÊë²,i„FÈ¹£§8ãäÂ½k¹¥¦ê/ç{ïêï¦‡2œ/«ü?¯Ô›ìñÜ$þeýœRIåŒg9Ác’zrrNO bÚi¢ ÑºË/$,“ª¯Ýä;Œ× ´<ÛÑn³IvŸb™¥ nm–ÄŸ—nÝÀãŽ3ëÍG,.öó³˜Ù£¹uÊÌrŠ[<±!@Æ:c9ÅZh ì’M5ÄìÌ-‚¼ëÉùqŽGì9¬á ;¨A-ž—évþÖ–^ON·Ô”ŸEý}ú×PO&e[]ÒG¸˜Ûp ƒÃà/Ë·8ûÀ€1ž@¿ÚB*²¼ñì8@p™8Q“žÆH'8«I-%¸‚ F»“åó6°Uù|¶Ú¸ã ò^Äw¥ŠÖK–1ÜÝK,Žddlí²0PÀü“×ükG…¯U«·¶–´w¶ŽÍ¾©yÞú[Zös•¯Á[™6° ¨¼ÉVæq·,# ìãï‘×8îry®A››¨,ãc66»Ë´ã'æÉù?t}¢æH--Òá"›|ˆ¬[í 7¶ö#¸9«––‹$,+Ëqœ\Êøc€yê^Ý¸Äa°«™B-9%«×®‹V´w~vÜTéê¢·þ¼ˆ%·¹• ’[xç•÷2gØS?6åÀÚ õ9É#š@÷bT¸º²C*3Bá¤òÎA9 =úU§Ó"2Ãlá0iÝIc‚2Î@%öç94ùô»'»HÄ¥Ô¾@à Tp£šíx:úÊ:5eºßMý×wµ›Ó_+šº3Ýyvÿ "ºÇ<ÂI>Õ1G·Ë«È«É# àÈÇ øp Jv·šæDûE¿›†Ë’NFr2qŸ½ÇAÜšu•´éí#Ä¦8£2”Ú2Ã/€[ÎTr;qŠz*ý’Îþ(â‰ ;¡TÆâ›;ºÿ àçœk‘Þ8¾Uª¾íé{^×IZéwÓkXÉûÑZo¯_øo×È¡¬ â–ÞR§2„‚Àœü½ùç® SVa†Âüª¼±D‘ŒísŸàä|ä2 æ[‹z”¯s{wn„ÆmáóCO+†GO8Ïeçåº`¯^¼ðG5f{Xžä,k‰<á y™¥voÆ éÛõëI=œ1‹éíÔÀÑ)R#;AÂncäŽ:tÏ#¶TkB.0Œ-ÖÞZÛgumß}fÎJÉ+#2êÔP£žùÈÅi¢%œ3P*Yƒò‚Aì“Ž2r:ƒÐúñiRUQq‰H9!”={~¼“JŽV¥»×²m.ÛßºiYl¾òk˜gL³·rT• ’…wHÁ6ä`–Î3ùÌ4Øe³†&òL‘•%clyÃ®AÂäà0 žüç$[3uÅ˜î¹•pNOÀÉ=† cï{rYK ååä~FÁ •a»"Lär1Ó¯2Äõæ<™C•.fÕ»è¥~½-¿g½Â4¡{[ør¨¶·Žõäx¥’l®qpwÇ»8ärF \cŽ¸ÜÆÓ-g‚yciÏÀ¾rÎwèØÈ#o°Á9ã5¢šfÔxÞæfGusÏÌJÿ µ×œ/LtãÅT7²¶w,l É³;”eúà·¨çîŒsÜgTÃS¦^ '~‹®›¯+k÷ZÖd©Æ*Ó[Ü«%Œk0ŽXƒ”$k#È¨ P2bv‘ƒŸáÇ™ÆÕb)m$É*8óLE‘8'–ÜN Úyàúô+{uº±I'wvš4fÜr íì½=úuú sFlìV$‘ö†HÑù€$§ õ=½¸«Ž] :Ž+•¦ïmRþ½l´îÊT#nkiøÿ _ðÆT¶7Ò½ºÒ£Î¸d\ã8=yãŽÜäR{x]ZâÚé#¸r²#»ÎHÆ6õ ç® ÎFkr;sºÄ.&;só±Ç9êH÷ýSšÕtÐU¢-n Ì| vqœ„{gŒt§S.P‹’Ž‰_[;m¥ÞZýRûÂX{+¥úü¼ú•-àÓ7!„G"“´‹žƒnrYXã¸îp éœ!ÓoPÌtÑ (‰Þ¹é€sÓ#GLçÕšÑnJý¡!‘Tä#“ß?îýp}xÇ‚I¥Õn#·¸–y'qó@r[ Êô÷<ÔWÃÓ¢áN¥4Ô’I&Ý¼¬¬¼ÞºvéÆ FQV~_ÒüJÖÚt¥¦Xá3BÄP^%ÈÎW-×c¡ú©¤·Iþèk¥š?–UQåIR[’O 5x\ÉhÆI¶K4«2ùªŠŒ<¼óœçØ`u«‚Í.VHä€ Ëgfx''9ÆI#±®Z8 sISºku¢ßÞ]úk»Jößl¡B.Ü»ÿ MWe °·Ž%šêÉ†¼»Âù³´œ O¿cÐÓÄh©"ÛÜÏ.ÖV’3nüÄmnq[ŒòznšÖ>J¬òˆæ…qýØP Ž:ä7^0yëWšÍ_79äoaÈ °#q0{ää×mœy”R{vÒÞ¶ÚÏe¥“ÚÆÐ¥Ì®—õýjR •íç›Ìb„+JyÜØÙ•Ç]¿Ôd þËOL²”9-Œ—õÃc'æÝ×œçÚ²ìejP“½ âù°¨†ðqòädÐƒÉäÖÜj÷PÇp“ÍšŠå«‘î <iWNsmª»¶vÓz5»ûì:Rs\Ðßôû×uÔÿÙ