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[CHG] libpng 1.2.29 updated to version 1.2.40
This commit is contained in:
Crayon2000
parent
4f5fbbf2d4
commit
1e84350468
3 changed files with 373 additions and 189 deletions
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@ -1,14 +1,16 @@
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/* png.h - header file for PNG reference library
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*
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* libpng version 1.2.29 - May 8, 2008
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* Copyright (c) 1998-2008 Glenn Randers-Pehrson
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* libpng version 1.2.40 - September 10, 2009
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* Copyright (c) 1998-2009 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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*
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* This code is released under the libpng license (See LICENSE, below)
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*
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* Authors and maintainers:
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* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
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* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
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* libpng versions 0.97, January 1998, through 1.2.29 - May 8, 2008: Glenn
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* libpng versions 0.97, January 1998, through 1.2.40 - September 10, 2009: Glenn
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* See also "Contributing Authors", below.
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*
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* Note about libpng version numbers:
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@ -192,6 +194,57 @@
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* 1.2.29rc01 13 10229 12.so.0.29[.0]
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* 1.0.35 10 10035 10.so.0.35[.0]
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* 1.2.29 13 10229 12.so.0.29[.0]
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* 1.0.37 10 10037 10.so.0.37[.0]
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* 1.2.30beta01-04 13 10230 12.so.0.30[.0]
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* 1.0.38rc01-08 10 10038 10.so.0.38[.0]
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* 1.2.30rc01-08 13 10230 12.so.0.30[.0]
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* 1.0.38 10 10038 10.so.0.38[.0]
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* 1.2.30 13 10230 12.so.0.30[.0]
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* 1.0.39rc01-03 10 10039 10.so.0.39[.0]
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* 1.2.31rc01-03 13 10231 12.so.0.31[.0]
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* 1.0.39 10 10039 10.so.0.39[.0]
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* 1.2.31 13 10231 12.so.0.31[.0]
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* 1.2.32beta01-02 13 10232 12.so.0.32[.0]
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* 1.0.40rc01 10 10040 10.so.0.40[.0]
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* 1.2.32rc01 13 10232 12.so.0.32[.0]
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* 1.0.40 10 10040 10.so.0.40[.0]
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* 1.2.32 13 10232 12.so.0.32[.0]
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* 1.2.33beta01-02 13 10233 12.so.0.33[.0]
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* 1.2.33rc01-02 13 10233 12.so.0.33[.0]
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* 1.0.41rc01 10 10041 10.so.0.41[.0]
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* 1.2.33 13 10233 12.so.0.33[.0]
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* 1.0.41 10 10041 10.so.0.41[.0]
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* 1.2.34beta01-07 13 10234 12.so.0.34[.0]
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* 1.0.42rc01 10 10042 10.so.0.42[.0]
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* 1.2.34rc01 13 10234 12.so.0.34[.0]
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* 1.0.42 10 10042 10.so.0.42[.0]
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* 1.2.34 13 10234 12.so.0.34[.0]
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* 1.2.35beta01-03 13 10235 12.so.0.35[.0]
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* 1.0.43rc01-02 10 10043 10.so.0.43[.0]
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* 1.2.35rc01-02 13 10235 12.so.0.35[.0]
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* 1.0.43 10 10043 10.so.0.43[.0]
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* 1.2.35 13 10235 12.so.0.35[.0]
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* 1.2.36beta01-05 13 10236 12.so.0.36[.0]
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* 1.2.36rc01 13 10236 12.so.0.36[.0]
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* 1.0.44 10 10044 10.so.0.44[.0]
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* 1.2.36 13 10236 12.so.0.36[.0]
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* 1.2.37beta01-03 13 10237 12.so.0.37[.0]
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* 1.2.37rc01 13 10237 12.so.0.37[.0]
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* 1.2.37 13 10237 12.so.0.37[.0]
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* 1.2.45 10 10045 12.so.0.45[.0]
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* 1.0.46 10 10046 10.so.0.46[.0]
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* 1.2.38beta01 13 10238 12.so.0.38[.0]
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* 1.2.38rc01-03 13 10238 12.so.0.38[.0]
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* 1.0.47 10 10047 10.so.0.47[.0]
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* 1.2.38 13 10238 12.so.0.38[.0]
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* 1.2.39beta01-05 13 10239 12.so.0.39[.0]
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* 1.2.39rc01 13 10239 12.so.0.39[.0]
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* 1.0.48 10 10048 10.so.0.48[.0]
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* 1.2.39 13 10239 12.so.0.39[.0]
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* 1.2.40beta01 13 10240 12.so.0.40[.0]
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* 1.2.40rc01 13 10240 12.so.0.40[.0]
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* 1.0.49 10 10049 10.so.0.49[.0]
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* 1.2.40 13 10240 12.so.0.40[.0]
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*
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* Henceforth the source version will match the shared-library major
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* and minor numbers; the shared-library major version number will be
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@ -221,8 +274,10 @@
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* If you modify libpng you may insert additional notices immediately following
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* this sentence.
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*
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* libpng versions 1.2.6, August 15, 2004, through 1.2.29, May 8, 2008, are
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* Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
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* This code is released under the libpng license.
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*
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* libpng versions 1.2.6, August 15, 2004, through 1.2.40, September 10, 2009, are
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* Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
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* distributed according to the same disclaimer and license as libpng-1.2.5
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* with the following individual added to the list of Contributing Authors:
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*
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@ -333,13 +388,13 @@
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* Y2K compliance in libpng:
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* =========================
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*
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* May 8, 2008
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* September 10, 2009
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*
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* Since the PNG Development group is an ad-hoc body, we can't make
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* an official declaration.
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*
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* This is your unofficial assurance that libpng from version 0.71 and
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* upward through 1.2.29 are Y2K compliant. It is my belief that earlier
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* upward through 1.2.40 are Y2K compliant. It is my belief that earlier
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* versions were also Y2K compliant.
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*
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* Libpng only has three year fields. One is a 2-byte unsigned integer
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@ -395,9 +450,9 @@
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*/
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/* Version information for png.h - this should match the version in png.c */
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#define PNG_LIBPNG_VER_STRING "1.2.29"
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#define PNG_LIBPNG_VER_STRING "1.2.40"
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#define PNG_HEADER_VERSION_STRING \
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" libpng version 1.2.29 - May 8, 2008\n"
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" libpng version 1.2.40 - September 10, 2009\n"
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#define PNG_LIBPNG_VER_SONUM 0
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#define PNG_LIBPNG_VER_DLLNUM 13
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@ -405,9 +460,10 @@
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/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
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#define PNG_LIBPNG_VER_MAJOR 1
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#define PNG_LIBPNG_VER_MINOR 2
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#define PNG_LIBPNG_VER_RELEASE 29
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#define PNG_LIBPNG_VER_RELEASE 40
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/* This should match the numeric part of the final component of
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* PNG_LIBPNG_VER_STRING, omitting any leading zero: */
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* PNG_LIBPNG_VER_STRING, omitting any leading zero:
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*/
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#define PNG_LIBPNG_VER_BUILD 0
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@ -417,7 +473,7 @@
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#define PNG_LIBPNG_BUILD_RC 3
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#define PNG_LIBPNG_BUILD_STABLE 4
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#define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7
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/* Release-Specific Flags */
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#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with
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PNG_LIBPNG_BUILD_STABLE only */
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@ -432,15 +488,16 @@
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* We must not include leading zeros.
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* Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
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* version 1.0.0 was mis-numbered 100 instead of 10000). From
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* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */
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#define PNG_LIBPNG_VER 10229 /* 1.2.29 */
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* version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release
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*/
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#define PNG_LIBPNG_VER 10240 /* 1.2.40 */
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#ifndef PNG_VERSION_INFO_ONLY
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/* include the compression library's header */
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/* Include the compression library's header */
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#include "zlib.h"
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#endif
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/* include all user configurable info, including optional assembler routines */
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/* Include all user configurable info, including optional assembler routines */
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#include "pngconf.h"
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/*
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@ -448,12 +505,12 @@
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/* Ref MSDN: Private as priority over Special
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* VS_FF_PRIVATEBUILD File *was not* built using standard release
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* procedures. If this value is given, the StringFileInfo block must
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* contain a PrivateBuild string.
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* contain a PrivateBuild string.
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*
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* VS_FF_SPECIALBUILD File *was* built by the original company using
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* standard release procedures but is a variation of the standard
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* file of the same version number. If this value is given, the
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* StringFileInfo block must contain a SpecialBuild string.
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* StringFileInfo block must contain a SpecialBuild string.
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*/
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#if defined(PNG_USER_PRIVATEBUILD)
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@ -515,14 +572,14 @@ extern "C" {
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#define png_write_status_ptr_NULL NULL
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#endif
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/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */
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/* Variables declared in png.c - only it needs to define PNG_NO_EXTERN */
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#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
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/* Version information for C files, stored in png.c. This had better match
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* the version above.
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*/
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#ifdef PNG_USE_GLOBAL_ARRAYS
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PNG_EXPORT_VAR (PNG_CONST char) png_libpng_ver[18];
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/* need room for 99.99.99beta99z */
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/* Need room for 99.99.99beta99z */
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#else
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#define png_libpng_ver png_get_header_ver(NULL)
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#endif
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@ -641,7 +698,8 @@ typedef png_text FAR * FAR * png_textpp;
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#endif
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/* Supported compression types for text in PNG files (tEXt, and zTXt).
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* The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */
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* The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed.
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*/
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#define PNG_TEXT_COMPRESSION_NONE_WR -3
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#define PNG_TEXT_COMPRESSION_zTXt_WR -2
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#define PNG_TEXT_COMPRESSION_NONE -1
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@ -668,7 +726,8 @@ typedef struct png_time_struct
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typedef png_time FAR * png_timep;
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typedef png_time FAR * FAR * png_timepp;
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
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defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
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/* png_unknown_chunk is a structure to hold queued chunks for which there is
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* no specific support. The idea is that we can use this to queue
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* up private chunks for output even though the library doesn't actually
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@ -730,7 +789,7 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp;
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*/
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typedef struct png_info_struct
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{
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/* the following are necessary for every PNG file */
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/* The following are necessary for every PNG file */
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png_uint_32 width; /* width of image in pixels (from IHDR) */
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png_uint_32 height; /* height of image in pixels (from IHDR) */
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png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */
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@ -903,8 +962,9 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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png_uint_32 free_me; /* flags items libpng is responsible for freeing */
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#endif
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
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/* storage for unknown chunks that the library doesn't recognize. */
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) || \
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defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
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/* Storage for unknown chunks that the library doesn't recognize. */
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png_unknown_chunkp unknown_chunks;
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png_size_t unknown_chunks_num;
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#endif
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@ -919,7 +979,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
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#endif
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#if defined(PNG_sPLT_SUPPORTED)
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/* data on sPLT chunks (there may be more than one). */
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/* Data on sPLT chunks (there may be more than one). */
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png_sPLT_tp splt_palettes;
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png_uint_32 splt_palettes_num;
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#endif
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@ -1134,7 +1194,10 @@ typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp));
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#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */
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#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */
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#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */
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#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only */
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#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only, deprecated */
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/* Added to libpng-1.2.34 */
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#define PNG_TRANSFORM_STRIP_FILLER_BEFORE 0x0800 /* write only */
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#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */
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/* Flags for MNG supported features */
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#define PNG_FLAG_MNG_EMPTY_PLTE 0x01
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png_uint_32 row_number; /* current row in interlace pass */
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png_bytep prev_row; /* buffer to save previous (unfiltered) row */
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png_bytep row_buf; /* buffer to save current (unfiltered) row */
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#ifndef PNG_NO_WRITE_FILTERING
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#ifndef PNG_NO_WRITE_FILTER
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png_bytep sub_row; /* buffer to save "sub" row when filtering */
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png_bytep up_row; /* buffer to save "up" row when filtering */
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png_bytep avg_row; /* buffer to save "avg" row when filtering */
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#endif /* PNG_bKGD_SUPPORTED */
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#if defined(PNG_WRITE_FLUSH_SUPPORTED)
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png_flush_ptr output_flush_fn;/* Function for flushing output */
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png_flush_ptr output_flush_fn; /* Function for flushing output */
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png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */
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png_uint_32 flush_rows; /* number of rows written since last flush */
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#endif
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/* New members added in libpng-1.0.6 */
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#ifdef PNG_FREE_ME_SUPPORTED
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png_uint_32 free_me; /* flags items libpng is responsible for freeing */
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png_uint_32 free_me; /* flags items libpng is responsible for freeing */
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#endif
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#if defined(PNG_USER_CHUNKS_SUPPORTED)
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png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */
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#endif
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
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#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
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int num_chunk_list;
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png_bytep chunk_list;
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#endif
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@ -1375,7 +1438,7 @@ struct png_struct_def
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#if defined(PNG_MNG_FEATURES_SUPPORTED) || \
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defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
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defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
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/* changed from png_byte to png_uint_32 at version 1.2.0 */
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/* Changed from png_byte to png_uint_32 at version 1.2.0 */
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#ifdef PNG_1_0_X
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png_byte mng_features_permitted;
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#else
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@ -1411,21 +1474,21 @@ struct png_struct_def
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/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
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#ifdef PNG_USER_MEM_SUPPORTED
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png_voidp mem_ptr; /* user supplied struct for mem functions */
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png_malloc_ptr malloc_fn; /* function for allocating memory */
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png_free_ptr free_fn; /* function for freeing memory */
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png_voidp mem_ptr; /* user supplied struct for mem functions */
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png_malloc_ptr malloc_fn; /* function for allocating memory */
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png_free_ptr free_fn; /* function for freeing memory */
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#endif
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/* New member added in libpng-1.0.13 and 1.2.0 */
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png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
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png_bytep big_row_buf; /* buffer to save current (unfiltered) row */
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#if defined(PNG_READ_DITHER_SUPPORTED)
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/* The following three members were added at version 1.0.14 and 1.2.4 */
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png_bytep dither_sort; /* working sort array */
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png_bytep index_to_palette; /* where the original index currently is */
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/* in the palette */
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png_bytep palette_to_index; /* which original index points to this */
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/* palette color */
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png_bytep dither_sort; /* working sort array */
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png_bytep index_to_palette; /* where the original index currently is */
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/* in the palette */
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png_bytep palette_to_index; /* which original index points to this */
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/* palette color */
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#endif
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/* New members added in libpng-1.0.16 and 1.2.6 */
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@ -1438,19 +1501,23 @@ struct png_struct_def
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/* New member added in libpng-1.0.25 and 1.2.17 */
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#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
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/* storage for unknown chunk that the library doesn't recognize. */
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/* Storage for unknown chunk that the library doesn't recognize. */
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png_unknown_chunk unknown_chunk;
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#endif
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/* New members added in libpng-1.2.26 */
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png_uint_32 old_big_row_buf_size, old_prev_row_size;
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/* New member added in libpng-1.2.30 */
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png_charp chunkdata; /* buffer for reading chunk data */
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};
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/* This triggers a compiler error in png.c, if png.c and png.h
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* do not agree upon the version number.
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*/
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typedef png_structp version_1_2_29;
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typedef png_structp version_1_2_40;
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||||
typedef png_struct FAR * FAR * png_structpp;
|
||||
|
||||
|
|
@ -1554,7 +1621,7 @@ extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr,
|
|||
png_infop info_ptr));
|
||||
|
||||
#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED
|
||||
/* read the information before the actual image data. */
|
||||
/* 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
|
||||
|
|
@ -1567,11 +1634,11 @@ extern PNG_EXPORT(png_charp,png_convert_to_rfc1123)
|
|||
#if !defined(_WIN32_WCE)
|
||||
/* "time.h" functions are not supported on WindowsCE */
|
||||
#if defined(PNG_WRITE_tIME_SUPPORTED)
|
||||
/* convert from a struct tm to png_time */
|
||||
/* 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() */
|
||||
/* 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_WRITE_tIME_SUPPORTED */
|
||||
|
|
@ -1691,7 +1758,7 @@ extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr,
|
|||
#endif
|
||||
|
||||
#if defined(PNG_READ_16_TO_8_SUPPORTED)
|
||||
/* strip the second byte of information from a 16-bit depth file. */
|
||||
/* 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
|
||||
|
||||
|
|
@ -1727,74 +1794,74 @@ extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows));
|
|||
extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr));
|
||||
#endif
|
||||
|
||||
/* optional update palette with requested transformations */
|
||||
/* 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 */
|
||||
/* 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. */
|
||||
/* 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. */
|
||||
/* 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. */
|
||||
/* 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 */
|
||||
/* 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 */
|
||||
/* 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 */
|
||||
/* 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. */
|
||||
/* 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. */
|
||||
/* 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 */
|
||||
/* 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 */
|
||||
/* 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) */
|
||||
/* 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));
|
||||
|
||||
/* free any memory associated with the png_struct and the png_info_structs */
|
||||
/* 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) */
|
||||
/* Free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */
|
||||
extern void png_write_destroy PNGARG((png_structp png_ptr));
|
||||
|
||||
/* set the libpng method of handling chunk CRC errors */
|
||||
/* 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));
|
||||
|
||||
|
|
@ -1822,7 +1889,7 @@ extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr,
|
|||
* header file (zlib.h) for an explination of the compression functions.
|
||||
*/
|
||||
|
||||
/* set the filtering method(s) used by libpng. Currently, the only valid
|
||||
/* 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,
|
||||
|
|
@ -1950,6 +2017,11 @@ extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr));
|
|||
* 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));
|
||||
|
|
@ -2014,15 +2086,15 @@ extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_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 */
|
||||
/* 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 */
|
||||
/* 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
|
||||
/* 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,
|
||||
|
|
@ -2040,7 +2112,7 @@ extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr,
|
|||
png_uint_32 size));
|
||||
#endif
|
||||
|
||||
/* frees a pointer allocated by png_malloc() */
|
||||
/* Frees a pointer allocated by png_malloc() */
|
||||
extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr));
|
||||
|
||||
#if defined(PNG_1_0_X)
|
||||
|
|
@ -2057,11 +2129,12 @@ 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 */
|
||||
* 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 */
|
||||
/* 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
|
||||
|
|
@ -2145,11 +2218,13 @@ png_infop info_ptr));
|
|||
|
||||
#if defined(PNG_INFO_IMAGE_SUPPORTED)
|
||||
/* Returns row_pointers, which is an array of pointers to scanlines that was
|
||||
returned from png_read_png(). */
|
||||
* 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(). */
|
||||
* 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
|
||||
|
|
@ -2450,8 +2525,8 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
|
|||
#endif
|
||||
#endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */
|
||||
|
||||
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
|
||||
/* provide a list of chunks and how they are to be handled, if the built-in
|
||||
#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.
|
||||
|
|
@ -2462,6 +2537,10 @@ extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
|
|||
*/
|
||||
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
|
||||
#if defined(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)
|
||||
|
|
@ -2469,14 +2548,11 @@ extern PNG_EXPORT(void, png_set_unknown_chunk_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
|
||||
#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep
|
||||
chunk_name));
|
||||
#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); */
|
||||
* 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));
|
||||
|
||||
|
|
@ -2502,34 +2578,90 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
|
|||
#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
|
||||
#include <crtdbg.h>
|
||||
#if (PNG_DEBUG > 1)
|
||||
#define png_debug(l,m) _RPT0(_CRT_WARN,m)
|
||||
#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1)
|
||||
#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2)
|
||||
#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)
|
||||
#define png_debug(l,m) \
|
||||
{ \
|
||||
int num_tabs=l; \
|
||||
fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
|
||||
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
|
||||
}
|
||||
#define png_debug1(l,m,p1) \
|
||||
{ \
|
||||
int num_tabs=l; \
|
||||
fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
|
||||
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
|
||||
}
|
||||
#define png_debug2(l,m,p1,p2) \
|
||||
{ \
|
||||
int num_tabs=l; \
|
||||
fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
|
||||
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
|
||||
}
|
||||
/* 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 */
|
||||
|
|
@ -2624,17 +2756,17 @@ extern PNG_EXPORT(void,png_set_mmx_thresholds)
|
|||
#if !defined(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. */
|
||||
* 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
|
||||
|
||||
#endif /* PNG_1_0_X */
|
||||
|
||||
/* Added at libpng-1.2.6 */
|
||||
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
|
||||
extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp
|
||||
|
|
@ -2645,7 +2777,10 @@ 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 project defs */
|
||||
|
||||
/* 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
|
||||
|
|
@ -2674,7 +2809,7 @@ extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
|
|||
(png_uint_32)(alpha)) + (png_uint_32)32768L); \
|
||||
(composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); }
|
||||
|
||||
#else /* standard method using integer division */
|
||||
#else /* Standard method using integer division */
|
||||
|
||||
# define png_composite(composite, fg, alpha, bg) \
|
||||
(composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \
|
||||
|
|
@ -2757,7 +2892,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
|
|||
#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 */
|
||||
/* Flags for the transformations the PNG library does on the image data */
|
||||
#define PNG_BGR 0x0001
|
||||
#define PNG_INTERLACE 0x0002
|
||||
#define PNG_PACK 0x0004
|
||||
|
|
@ -2791,7 +2926,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
|
|||
/* 0x20000000L unused */
|
||||
/* 0x40000000L unused */
|
||||
|
||||
/* flags for png_create_struct */
|
||||
/* Flags for png_create_struct */
|
||||
#define PNG_STRUCT_PNG 0x0001
|
||||
#define PNG_STRUCT_INFO 0x0002
|
||||
|
||||
|
|
@ -2801,7 +2936,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
|
|||
#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 */
|
||||
/* 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
|
||||
|
|
@ -2843,7 +2978,7 @@ extern PNG_EXPORT(void,png_save_uint_16)
|
|||
#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \
|
||||
PNG_FLAG_CRC_CRITICAL_MASK)
|
||||
|
||||
/* save typing and make code easier to understand */
|
||||
/* 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)) + \
|
||||
|
|
@ -2856,15 +2991,16 @@ extern PNG_EXPORT(void,png_save_uint_16)
|
|||
(( ((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 */
|
||||
* 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 */
|
||||
/* 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. */
|
||||
/* 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
|
||||
|
|
@ -2983,7 +3119,8 @@ PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr));
|
|||
#endif
|
||||
|
||||
/* Next four functions are used internally as callbacks. PNGAPI is required
|
||||
* but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */
|
||||
* 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));
|
||||
|
|
@ -3026,8 +3163,8 @@ PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf,
|
|||
/* 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 png_charp png_decompress_chunk PNGARG((png_structp png_ptr,
|
||||
int comp_type, png_charp chunkdata, png_size_t chunklength,
|
||||
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));
|
||||
#endif
|
||||
|
||||
|
|
@ -3048,10 +3185,10 @@ PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr,
|
|||
PNG_EXTERN void png_flush PNGARG((png_structp png_ptr));
|
||||
#endif
|
||||
|
||||
/* simple function to write the signature */
|
||||
/* Simple function to write the signature */
|
||||
PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr));
|
||||
|
||||
/* write various chunks */
|
||||
/* Write various chunks */
|
||||
|
||||
/* Write the IHDR chunk, and update the png_struct with the necessary
|
||||
* information.
|
||||
|
|
@ -3203,12 +3340,12 @@ PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr));
|
|||
PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr));
|
||||
#endif
|
||||
|
||||
/* combine a row of data, dealing with alpha, etc. if requested */
|
||||
/* 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));
|
||||
|
||||
#if defined(PNG_READ_INTERLACING_SUPPORTED)
|
||||
/* expand an interlaced row */
|
||||
/* 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));
|
||||
|
|
@ -3219,12 +3356,12 @@ PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr));
|
|||
/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */
|
||||
|
||||
#if defined(PNG_WRITE_INTERLACING_SUPPORTED)
|
||||
/* grab pixels out of a row for an interlaced pass */
|
||||
/* 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));
|
||||
#endif
|
||||
|
||||
/* unfilter a row */
|
||||
/* 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));
|
||||
|
||||
|
|
@ -3235,16 +3372,16 @@ PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr,
|
|||
/* Write out the filtered row. */
|
||||
PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr,
|
||||
png_bytep filtered_row));
|
||||
/* finish a row while reading, dealing with interlacing passes, etc. */
|
||||
/* 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. */
|
||||
/* Initialize the row buffers, etc. */
|
||||
PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr));
|
||||
/* optional call to update the users info structure */
|
||||
/* Optional call to update the users info structure */
|
||||
PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr,
|
||||
png_infop info_ptr));
|
||||
|
||||
/* these are the functions that do the transformations */
|
||||
/* These are the functions that do the transformations */
|
||||
#if defined(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));
|
||||
|
|
@ -3366,7 +3503,7 @@ PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info,
|
|||
* then calls the appropriate callback for the chunk if it is valid.
|
||||
*/
|
||||
|
||||
/* decode the IHDR chunk */
|
||||
/* Decode the IHDR chunk */
|
||||
PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr,
|
||||
png_uint_32 length));
|
||||
PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr,
|
||||
|
|
@ -3465,7 +3602,7 @@ PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr,
|
|||
PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr,
|
||||
png_bytep chunk_name));
|
||||
|
||||
/* handle the transformations for reading and writing */
|
||||
/* Handle the transformations for reading and writing */
|
||||
PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr));
|
||||
PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr));
|
||||
|
||||
|
|
@ -3556,6 +3693,26 @@ 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));
|
||||
|
||||
/* Added at libpng version 1.2.34 */
|
||||
#if defined(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));
|
||||
#endif
|
||||
|
||||
#if defined(PNG_cHRM_SUPPORTED)
|
||||
#if !defined(PNG_NO_CHECK_cHRM)
|
||||
/* Added at libpng version 1.2.34 */
|
||||
PNG_EXTERN void png_64bit_product (long v1, long v2, unsigned long *hi_product,
|
||||
unsigned long *lo_product);
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
|
||||
|
||||
#endif /* PNG_INTERNAL */
|
||||
|
|
@ -3565,5 +3722,5 @@ png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type));
|
|||
#endif
|
||||
|
||||
#endif /* PNG_VERSION_INFO_ONLY */
|
||||
/* do not put anything past this line */
|
||||
/* Do not put anything past this line */
|
||||
#endif /* PNG_H */
|
||||
|
|
|
|||
|
|
@ -1,11 +1,14 @@
|
|||
|
||||
/* pngconf.h - machine configurable file for libpng
|
||||
*
|
||||
* libpng version 1.2.29 - May 8, 2008
|
||||
* For conditions of distribution and use, see copyright notice in png.h
|
||||
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
|
||||
* libpng version 1.2.40 - September 10, 2009
|
||||
* Copyright (c) 1998-2009 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.
|
||||
* For conditions of distribution and use, see the disclaimer
|
||||
* and license in png.h
|
||||
*/
|
||||
|
||||
/* Any machine specific code is near the front of this file, so if you
|
||||
|
|
@ -19,7 +22,7 @@
|
|||
|
||||
#define PNG_1_2_X
|
||||
|
||||
/*
|
||||
/*
|
||||
* PNG_USER_CONFIG has to be defined on the compiler command line. This
|
||||
* includes the resource compiler for Windows DLL configurations.
|
||||
*/
|
||||
|
|
@ -39,7 +42,7 @@
|
|||
|
||||
/*
|
||||
* Added at libpng-1.2.8
|
||||
*
|
||||
*
|
||||
* If you create a private DLL you need to define in "pngusr.h" the followings:
|
||||
* #define PNG_USER_PRIVATEBUILD <Describes by whom and why this version of
|
||||
* the DLL was built>
|
||||
|
|
@ -50,8 +53,8 @@
|
|||
* number and must match your private DLL name>
|
||||
* e.g. // private DLL "libpng13gx.dll"
|
||||
* #define PNG_USER_DLLFNAME_POSTFIX "gx"
|
||||
*
|
||||
* The following macros are also at your disposal if you want to complete the
|
||||
*
|
||||
* The following macros are also at your disposal if you want to complete the
|
||||
* DLL VERSIONINFO structure.
|
||||
* - PNG_USER_VERSIONINFO_COMMENTS
|
||||
* - PNG_USER_VERSIONINFO_COMPANYNAME
|
||||
|
|
@ -147,9 +150,9 @@
|
|||
* 'Cygwin' defines/defaults:
|
||||
* PNG_BUILD_DLL -- (ignored) building the dll
|
||||
* (no define) -- (ignored) building an application, linking to the dll
|
||||
* PNG_STATIC -- (ignored) building the static lib, or building an
|
||||
* PNG_STATIC -- (ignored) building the static lib, or building an
|
||||
* application that links to the static lib.
|
||||
* ALL_STATIC -- (ignored) building various static libs, or building an
|
||||
* ALL_STATIC -- (ignored) building various static libs, or building an
|
||||
* application that links to the static libs.
|
||||
* Thus,
|
||||
* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
|
||||
|
|
@ -162,12 +165,12 @@
|
|||
* PNG_BUILD_DLL
|
||||
* PNG_STATIC
|
||||
* (nothing) == PNG_USE_DLL
|
||||
*
|
||||
*
|
||||
* CYGWIN (2002-01-20): The preceding is now obsolete. With the advent
|
||||
* of auto-import in binutils, we no longer need to worry about
|
||||
* of auto-import in binutils, we no longer need to worry about
|
||||
* __declspec(dllexport) / __declspec(dllimport) and friends. Therefore,
|
||||
* we don't need to worry about PNG_STATIC or ALL_STATIC when it comes
|
||||
* to __declspec() stuff. However, we DO need to worry about
|
||||
* to __declspec() stuff. However, we DO need to worry about
|
||||
* PNG_BUILD_DLL and PNG_STATIC because those change some defaults
|
||||
* such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed.
|
||||
*/
|
||||
|
|
@ -211,8 +214,8 @@
|
|||
# if !defined(PNG_DLL)
|
||||
# define PNG_DLL
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
|
|
@ -233,6 +236,8 @@
|
|||
# include <windows.h>
|
||||
/* Console I/O functions are not supported on WindowsCE */
|
||||
# define PNG_NO_CONSOLE_IO
|
||||
/* abort() may not be supported on some/all Windows CE platforms */
|
||||
# define PNG_ABORT() exit(-1)
|
||||
# ifdef PNG_DEBUG
|
||||
# undef PNG_DEBUG
|
||||
# endif
|
||||
|
|
@ -312,21 +317,29 @@
|
|||
#ifdef PNG_SETJMP_SUPPORTED
|
||||
/* This is an attempt to force a single setjmp behaviour on Linux. If
|
||||
* the X config stuff didn't define _BSD_SOURCE we wouldn't need this.
|
||||
*
|
||||
* You can bypass this test if you know that your application uses exactly
|
||||
* the same setjmp.h that was included when libpng was built. Only define
|
||||
* PNG_SKIP_SETJMP_CHECK while building your application, prior to the
|
||||
* application's '#include "png.h"'. Don't define PNG_SKIP_SETJMP_CHECK
|
||||
* while building a separate libpng library for general use.
|
||||
*/
|
||||
|
||||
# ifdef __linux__
|
||||
# ifdef _BSD_SOURCE
|
||||
# define PNG_SAVE_BSD_SOURCE
|
||||
# undef _BSD_SOURCE
|
||||
# endif
|
||||
# ifdef _SETJMP_H
|
||||
/* If you encounter a compiler error here, see the explanation
|
||||
* near the end of INSTALL.
|
||||
*/
|
||||
__pngconf.h__ already includes setjmp.h;
|
||||
__dont__ include it again.;
|
||||
# endif
|
||||
# endif /* __linux__ */
|
||||
# ifndef PNG_SKIP_SETJMP_CHECK
|
||||
# ifdef __linux__
|
||||
# ifdef _BSD_SOURCE
|
||||
# define PNG_SAVE_BSD_SOURCE
|
||||
# undef _BSD_SOURCE
|
||||
# endif
|
||||
# ifdef _SETJMP_H
|
||||
/* If you encounter a compiler error here, see the explanation
|
||||
* near the end of INSTALL.
|
||||
*/
|
||||
__pngconf.h__ in libpng already includes setjmp.h;
|
||||
__dont__ include it again.;
|
||||
# endif
|
||||
# endif /* __linux__ */
|
||||
# endif /* PNG_SKIP_SETJMP_CHECK */
|
||||
|
||||
/* include setjmp.h for error handling */
|
||||
# include <setjmp.h>
|
||||
|
|
@ -477,7 +490,7 @@
|
|||
* iTXt support was added. iTXt support was turned off by default through
|
||||
* libpng-1.2.x, to support old apps that malloc the png_text structure
|
||||
* instead of calling png_set_text() and letting libpng malloc it. It
|
||||
* was turned on by default in libpng-1.3.0.
|
||||
* will be turned on by default in libpng-1.4.0.
|
||||
*/
|
||||
|
||||
#if defined(PNG_1_0_X) || defined (PNG_1_2_X)
|
||||
|
|
@ -511,6 +524,7 @@
|
|||
# define PNG_NO_FREE_ME
|
||||
# define PNG_NO_READ_UNKNOWN_CHUNKS
|
||||
# define PNG_NO_WRITE_UNKNOWN_CHUNKS
|
||||
# define PNG_NO_HANDLE_AS_UNKNOWN
|
||||
# define PNG_NO_READ_USER_CHUNKS
|
||||
# define PNG_NO_READ_iCCP
|
||||
# define PNG_NO_WRITE_iCCP
|
||||
|
|
@ -540,7 +554,7 @@
|
|||
# define PNG_FREE_ME_SUPPORTED
|
||||
#endif
|
||||
|
||||
#if defined(PNG_READ_SUPPORTED)
|
||||
#ifdef PNG_READ_SUPPORTED
|
||||
|
||||
#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
|
||||
!defined(PNG_NO_READ_TRANSFORMS)
|
||||
|
|
@ -628,7 +642,7 @@
|
|||
|
||||
#endif /* PNG_READ_SUPPORTED */
|
||||
|
||||
#if defined(PNG_WRITE_SUPPORTED)
|
||||
#ifdef PNG_WRITE_SUPPORTED
|
||||
|
||||
# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
|
||||
!defined(PNG_NO_WRITE_TRANSFORMS)
|
||||
|
|
@ -731,7 +745,7 @@
|
|||
# define PNG_EASY_ACCESS_SUPPORTED
|
||||
#endif
|
||||
|
||||
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
|
||||
/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0
|
||||
* and removed from version 1.2.20. The following will be removed
|
||||
* from libpng-1.4.0
|
||||
*/
|
||||
|
|
@ -798,6 +812,11 @@
|
|||
# define PNG_USER_HEIGHT_MAX 1000000L
|
||||
#endif
|
||||
|
||||
/* Added at libpng-1.2.34 and 1.4.0 */
|
||||
#ifndef PNG_STRING_NEWLINE
|
||||
#define PNG_STRING_NEWLINE "\n"
|
||||
#endif
|
||||
|
||||
/* These are currently experimental features, define them if you want */
|
||||
|
||||
/* very little testing */
|
||||
|
|
@ -925,14 +944,22 @@
|
|||
# define PNG_READ_zTXt_SUPPORTED
|
||||
# define PNG_zTXt_SUPPORTED
|
||||
#endif
|
||||
#ifndef PNG_NO_READ_OPT_PLTE
|
||||
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
|
||||
#endif /* optional PLTE chunk in RGB and RGBA images */
|
||||
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
|
||||
defined(PNG_READ_zTXt_SUPPORTED)
|
||||
# define PNG_READ_TEXT_SUPPORTED
|
||||
# define PNG_TEXT_SUPPORTED
|
||||
#endif
|
||||
|
||||
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
|
||||
|
||||
#ifndef PNG_NO_READ_UNKNOWN_CHUNKS
|
||||
# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# endif
|
||||
# ifndef PNG_NO_HANDLE_AS_UNKNOWN
|
||||
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# endif
|
||||
#endif
|
||||
#if !defined(PNG_NO_READ_USER_CHUNKS) && \
|
||||
defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED)
|
||||
|
|
@ -945,17 +972,14 @@
|
|||
# undef PNG_NO_HANDLE_AS_UNKNOWN
|
||||
# endif
|
||||
#endif
|
||||
#ifndef PNG_NO_READ_OPT_PLTE
|
||||
# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
|
||||
#endif /* optional PLTE chunk in RGB and RGBA images */
|
||||
#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
|
||||
defined(PNG_READ_zTXt_SUPPORTED)
|
||||
# define PNG_READ_TEXT_SUPPORTED
|
||||
# define PNG_TEXT_SUPPORTED
|
||||
|
||||
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
|
||||
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */
|
||||
|
||||
#ifdef PNG_WRITE_SUPPORTED
|
||||
#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
|
||||
|
||||
#ifdef PNG_NO_WRITE_TEXT
|
||||
|
|
@ -1067,17 +1091,6 @@
|
|||
# define PNG_zTXt_SUPPORTED
|
||||
# endif
|
||||
#endif
|
||||
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
|
||||
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# endif
|
||||
# ifndef PNG_NO_HANDLE_AS_UNKNOWN
|
||||
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
|
||||
defined(PNG_WRITE_zTXt_SUPPORTED)
|
||||
# define PNG_WRITE_TEXT_SUPPORTED
|
||||
|
|
@ -1088,6 +1101,20 @@
|
|||
|
||||
#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */
|
||||
|
||||
#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS
|
||||
# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# define PNG_UNKNOWN_CHUNKS_SUPPORTED
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef PNG_NO_HANDLE_AS_UNKNOWN
|
||||
# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
|
||||
# endif
|
||||
#endif
|
||||
#endif /* PNG_WRITE_SUPPORTED */
|
||||
|
||||
/* Turn this off to disable png_read_png() and
|
||||
* png_write_png() and leave the row_pointers member
|
||||
* out of the info structure.
|
||||
|
|
@ -1123,10 +1150,10 @@ typedef unsigned char png_byte;
|
|||
change (I'm not sure if you will or not, so I thought I'd be safe) */
|
||||
#ifdef PNG_SIZE_T
|
||||
typedef PNG_SIZE_T png_size_t;
|
||||
# define png_sizeof(x) png_convert_size(sizeof (x))
|
||||
# define png_sizeof(x) png_convert_size(sizeof(x))
|
||||
#else
|
||||
typedef size_t png_size_t;
|
||||
# define png_sizeof(x) sizeof (x)
|
||||
# define png_sizeof(x) sizeof(x)
|
||||
#endif
|
||||
|
||||
/* The following is needed for medium model support. It cannot be in the
|
||||
|
|
@ -1233,7 +1260,7 @@ typedef char FAR * FAR * FAR * png_charppp;
|
|||
|
||||
#if defined(PNG_1_0_X) || defined(PNG_1_2_X)
|
||||
/* SPC - Is this stuff deprecated? */
|
||||
/* It'll be removed as of libpng-1.3.0 - GR-P */
|
||||
/* It'll be removed as of libpng-1.4.0 - GR-P */
|
||||
/* libpng typedefs for types in zlib. If zlib changes
|
||||
* or another compression library is used, then change these.
|
||||
* Eliminates need to change all the source files.
|
||||
|
|
@ -1306,7 +1333,7 @@ typedef z_stream FAR * png_zstreamp;
|
|||
# define PNGAPI __cdecl
|
||||
# undef PNG_IMPEXP
|
||||
# define PNG_IMPEXP
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
|
||||
* you may get warnings regarding the linkage of png_zalloc and png_zfree.
|
||||
|
|
|
|||
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Reference in a new issue