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Imported from libpng-1.0.8beta4.tar

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Glenn Randers-Pehrson 2000-07-14 08:15:12 -05:00
parent ff9c947a1a
commit a4d54bdb4a
46 changed files with 391 additions and 103 deletions
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5
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.0.8beta3 - July 11, 2000 Libpng 1.0.8beta4 - July 14, 2000
This is a public release of libpng, intended for use in production codes. This is a public release of libpng, intended for use in production codes.
@ -15,6 +15,9 @@ Changes since the last public release (1.0.7):
Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS() Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
for indexed-color input files to avoid potential double-freeing trans array for indexed-color input files to avoid potential double-freeing trans array
under some unusual conditions; problem was introduced in version 1.0.7. under some unusual conditions; problem was introduced in version 1.0.7.
Added the files pngbar.png and pngbar.jpg to the distribution.
Added cygwin subdirectory, makefile.cygwin, and cygwin support in pngconf.h
Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
Send comments/corrections/commendations to Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

6
CHANGES
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@ -797,7 +797,7 @@ version 1.0.7rc2 [June 28, 2000]
Fixed "DJBPP" typo in pnggccrd.c introduced in beta18. Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
version 1.0.7 [July 1, 2000] version 1.0.7 [July 1, 2000]
Revised the definition of "trans_values" in libpng.3/libpng.txt Revised the definition of "trans_values" in libpng.3/libpng.txt
version 1.0.8beta3 [July 11, 2000] version 1.0.8beta4 [July 14, 2000]
version 1.0.8beta1 [July 8, 2000] version 1.0.8beta1 [July 8, 2000]
Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks. Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
@ -814,6 +814,10 @@ version 1.0.8beta3 [July 11, 2000]
for indexed-color input files to avoid potential double-freeing trans array for indexed-color input files to avoid potential double-freeing trans array
under some unusual conditions; problem was introduced in version 1.0.6f. under some unusual conditions; problem was introduced in version 1.0.6f.
Further revisions to pngtest.c and files in the wince subdirectory. Further revisions to pngtest.c and files in the wince subdirectory.
version 1.0.8beta4 [July 14, 2000]
Added the files pngbar.png and pngbar.jpg to the distribution.
Added cygwin subdirectory, makefile.cygwin, and cygwin support in pngconf.h
Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
Send comments/corrections/commendations to Send comments/corrections/commendations to
png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu

12
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.8beta3 - July 11, 2000 Installing libpng version 1.0.8beta4 - July 14, 2000
Before installing libpng, you must first install zlib. zlib Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be can usually be found wherever you got libpng. zlib can be
@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
version of zlib that's installed. version of zlib that's installed.
You can rename the directories that you downloaded (they You can rename the directories that you downloaded (they
might be called "libpng-1.0.8beta3" or "lpng107" and "zlib-1.1.3" might be called "libpng-1.0.8beta4" or "lpng107" and "zlib-1.1.3"
or "zlib113") so that you have directories called "zlib" and "libpng". or "zlib113") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this: Your directory structure should look like this:
@ -57,8 +57,8 @@ The files that are presently available in the scripts directory
include include
makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.8beta3) makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.8beta4)
makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.8beta3, makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.8beta4,
uses assembler code tuned for Intel MMX platform) uses assembler code tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with makefile.knr => Archaic UNIX Makefile that converts files with
@ -70,9 +70,9 @@ include
makefile.intel => Intel C/C++ version 4.0 and later makefile.intel => Intel C/C++ version 4.0 and later
libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.8beta3) makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.8beta4)
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.8beta3) makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.8beta4)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile makefile.acorn => Acorn makefile

22
KNOWNBUG
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@ -9,6 +9,13 @@ Known bugs and suggested enhancements in libpng-1.0.7
STATUS: Under investigation. Experts on MMX assembler code are STATUS: Under investigation. Experts on MMX assembler code are
invited to help with the debugging. Note that pngvcrd.c works fine. invited to help with the debugging. Note that pngvcrd.c works fine.
Update: fixed in libpng-1.0.8beta1. It compiles under gcc-2.7.2.3
and seems to work; under gcc-2.7.2.1 it compiles but crashes in
execution. It is recommended that people use 2.95.2 or later.
The png_read_filter() function has still not been fully converted and
will not compile under gcc-2.95.2; it is currently ifdef'ed out.
2. July 3, 2000 -- BUG -- MEMORY LEAK 2. July 3, 2000 -- BUG -- MEMORY LEAK
There is a memory leak in pngpread.c; it doesn't free "key". There is a memory leak in pngpread.c; it doesn't free "key".
@ -38,11 +45,18 @@ Known bugs and suggested enhancements in libpng-1.0.7
Libpng-1.0.7 does not support WindowsCE. Libpng-1.0.7 does not support WindowsCE.
STATUS: Libpng-1.0.8 and libpng-2.0.0 will support WindowsCE. A STATUS: Libpng-1.0.8 and libpng-2.0.0 will support WindowsCE. A
new typedef, png_file_p, will be added which is normally FILE * but new typedef, png_FILE_p, will be added which is normally FILE * but
will be HANDLE if libpng is being built for WindowsCE. Other patches will be HANDLE if libpng is being built for WindowsCE. Other patches
required for WindowsCE support have been provided and will be applied. required for WindowsCE support have been provided and will be applied.
Finished in libpng-1.0.8beta3.
6. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey 6. July 13, 2000 -- ENHANCEMENT -- Cygwin support
Libpng-1.0.7 does not support building DLLs under Cygwin
STATUS: Cygwin support has been added to libpng-1.0.8beta4.
7. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
Loops need to be optimized everywhere Loops need to be optimized everywhere
@ -57,7 +71,7 @@ Known bugs and suggested enhancements in libpng-1.0.7
libpng-1.1.0. About 160 loops will be turned around libpng-1.1.0. About 160 loops will be turned around
in libpng-2.0.x betaxx, for testing. in libpng-2.0.x betaxx, for testing.
7. July 4, 1998 -- ENHANCEMENT -- Glenn R-P 8. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
libpng-1.0.5 and earlier transform colors to gamma=1.0 space for libpng-1.0.5 and earlier transform colors to gamma=1.0 space for
merging with background, and then back to the image's gamma. The merging with background, and then back to the image's gamma. The
@ -69,7 +83,7 @@ Known bugs and suggested enhancements in libpng-1.0.7
STATUS: under development. STATUS: under development.
8. September 1999 -- ENHANCEMENT -- 9. September 1999 -- ENHANCEMENT --
It should be possible to use libpng without floating-point aritmetic. It should be possible to use libpng without floating-point aritmetic.

6
LICENSE
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@ -4,7 +4,7 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following If you modify libpng you may insert additional notices immediately following
this sentence. this sentence.
libpng version 1.0.8beta3, July 11, 2000 is Copyright (c) 2000 Glenn Randers-Pehrson libpng version 1.0.8beta4, July 14, 2000 is Copyright (c) 2000 Glenn Randers-Pehrson
Distributed according to the same disclaimer and license as libpng-1.0.6 Distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors with the following individuals added to the list of Contributing Authors
@ -87,11 +87,11 @@ boxes and the like:
printf("%s",png_get_copyright(NULL)); printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the Also, the PNG logo (in PNG format, of course) is supplied in the
file "pngnow.png". files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative. certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
randeg@alum.rpi.edu randeg@alum.rpi.edu
July 11, 2000 July 14, 2000

13
README
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@ -1,4 +1,4 @@
README for libpng 1.0.8beta3 - July 11, 2000 (shared library 2.1) README for libpng 1.0.8beta4 - July 14, 2000 (shared library 2.1)
See the note about version numbers near the top of png.h See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng. See INSTALL for instructions on how to install libpng.
@ -148,7 +148,8 @@ Files in this distribution:
pngerror.c => Error/warning message I/O functions pngerror.c => Error/warning message I/O functions
pngget.c => Functions for retrieving info from struct pngget.c => Functions for retrieving info from struct
pngmem.c => Memory handling functions pngmem.c => Memory handling functions
pngnow.png => PNG logo pngbar.png => PNG logo, 88x31
pngnow.png => PNG logo, 98x31
pngpread.c => Progressive reading functions pngpread.c => Progressive reading functions
pngread.c => Read data/helper high-level functions pngread.c => Read data/helper high-level functions
pngrio.c => Lowest-level data read I/O functions pngrio.c => Lowest-level data read I/O functions
@ -176,9 +177,9 @@ Files in this distribution:
descrip.mms => VMS makefile for MMS or MMK descrip.mms => VMS makefile for MMS or MMK
makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.linux => Linux/ELF makefile makefile.linux => Linux/ELF makefile
(gcc, creates libpng.so.2.1.0.8beta3) (gcc, creates libpng.so.2.1.0.8beta4)
makefile.gcmmx => Linux/ELF makefile (gcc, creates makefile.gcmmx => Linux/ELF makefile (gcc, creates
libpng.so.2.1.0.8beta3, uses assembler code libpng.so.2.1.0.8beta4, uses assembler code
tuned for Intel MMX platform) tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with makefile.knr => Archaic UNIX Makefile that converts files with
@ -190,10 +191,10 @@ Files in this distribution:
makefile.intel => Intel C/C++ version 4.0 and later makefile.intel => Intel C/C++ version 4.0 and later
libpng.icc => Project file, IBM VisualAge/C++ 4.0 or later libpng.icc => Project file, IBM VisualAge/C++ 4.0 or later
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib) makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.8beta3) makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.8beta4)
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng.so.2.1.0.8beta3) (gcc, creates libpng.so.2.1.0.8beta4)
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile makefile.acorn => Acorn makefile

4
Y2KINFO
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@ -1,13 +1,13 @@
Y2K compliance in libpng: Y2K compliance in libpng:
========================= =========================
July 11, 2000 July 14, 2000
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.8beta3 are Y2K compliant. It is my belief that earlier upward through 1.0.8beta4 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer Libpng only has three year fields. One is a 2-byte unsigned integer

2
configure vendored
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@ -1,5 +1,5 @@
echo " echo "
There is no \"configure\" script for Libpng-1.0.8beta3. Instead, please There is no \"configure\" script for Libpng-1.0.8beta4. Instead, please
copy the appropriate makefile for your system from the \"scripts\" copy the appropriate makefile for your system from the \"scripts\"
directory. Read the INSTALL file for more details. directory. Read the INSTALL file for more details.
" "

18
libpng.3
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@ -1,6 +1,6 @@
.TH LIBPNG 3 "July 11, 2000" .TH LIBPNG 3 "July 14, 2000"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta4
.SH SYNOPSIS .SH SYNOPSIS
\fI\fB \fI\fB
@ -747,7 +747,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.8beta3 - July 11, 2000 libpng version 1.0.8beta4 - July 14, 2000
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu> <randeg@alum.rpi.edu>
Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
@ -3381,13 +3381,13 @@ application:
.SH VII. Y2K Compliance in libpng .SH VII. Y2K Compliance in libpng
July 11, 2000 July 14, 2000
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.8beta3 are Y2K compliant. It is my belief that earlier upward through 1.0.8beta4 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that Libpng only has three year fields. One is a 2-byte unsigned integer that
@ -3528,7 +3528,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.8beta3 - July 11, 2000: Libpng version 1.0.8beta4 - July 14, 2000:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu). Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
@ -3541,7 +3541,7 @@ Supported by the PNG development group
If you modify libpng you may insert additional notices immediately following If you modify libpng you may insert additional notices immediately following
this sentence. this sentence.
libpng version 1.0.8beta3, July 11, 2000 is libpng version 1.0.8beta4, July 14, 2000 is
Copyright (c) 2000 Glenn Randers-Pehrson Copyright (c) 2000 Glenn Randers-Pehrson
Distributed according to the same disclaimer and license as libpng-1.0.6 Distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors with the following individuals added to the list of Contributing Authors
@ -3625,14 +3625,14 @@ boxes and the like:
printf("%s",png_get_copyright(NULL)); printf("%s",png_get_copyright(NULL));
Also, the PNG logo (in PNG format, of course) is supplied in the Also, the PNG logo (in PNG format, of course) is supplied in the
file "pngnow.png". files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
certification mark of the Open Source Initiative. certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
randeg@alum.rpi.edu randeg@alum.rpi.edu
July 11, 2000 July 14, 2000
.\" end of man page .\" end of man page

6
libpng.txt
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@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.8beta3 - July 11, 2000 libpng version 1.0.8beta4 - July 14, 2000
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<randeg@alum.rpi.edu> <randeg@alum.rpi.edu>
Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
@ -2634,13 +2634,13 @@ application:
VII. Y2K Compliance in libpng VII. Y2K Compliance in libpng
July 11, 2000 July 14, 2000
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
This is your unofficial assurance that libpng from version 0.71 and This is your unofficial assurance that libpng from version 0.71 and
upward through 1.0.8beta3 are Y2K compliant. It is my belief that earlier upward through 1.0.8beta4 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant. versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that Libpng only has three year fields. One is a 2-byte unsigned integer that

4
libpngpf.3
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@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "July 11, 2000" .TH LIBPNGPF 3 "July 14, 2000"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta4
(private functions) (private functions)
.SH SYNOPSIS .SH SYNOPSIS
\fB#include <png.h>\fP \fB#include <png.h>\fP

2
msvc/README.txt
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@ -1,5 +1,5 @@
Microsoft Developer Studio Build File, Format Version 6.00 for Microsoft Developer Studio Build File, Format Version 6.00 for
libpng 1.0.8beta3 (July 11, 2000) and zlib libpng 1.0.8beta4 (July 14, 2000) and zlib
Copyright (C) 2000 Simon-Pierre Cadieux Copyright (C) 2000 Simon-Pierre Cadieux
For conditions of distribution and use, see copyright notice in png.h For conditions of distribution and use, see copyright notice in png.h

2
msvc/png32ms.def
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@ -6,7 +6,7 @@ LIBRARY
DESCRIPTION "PNG image compression library for Windows" DESCRIPTION "PNG image compression library for Windows"
EXPORTS EXPORTS
;Version 1.0.8beta3 ;Version 1.0.8beta4
png_build_grayscale_palette @1 png_build_grayscale_palette @1
png_check_sig @2 png_check_sig @2
png_chunk_error @3 png_chunk_error @3

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "July 11, 2000" .TH PNG 5 "July 14, 2000"
.SH NAME .SH NAME
png \- Portable Network Graphics (PNG) format png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION .SH DESCRIPTION

14
png.c
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@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* libpng version 1.0.8beta3 - July 11, 2000 * libpng version 1.0.8beta4 - July 14, 2000
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -13,14 +13,14 @@
#include "png.h" #include "png.h"
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_8beta3 Your_png_h_is_not_version_1_0_8beta3; typedef version_1_0_8beta4 Your_png_h_is_not_version_1_0_8beta4;
/* Version information for C files. This had better match the version /* Version information for C files. This had better match the version
* string defined in png.h. */ * string defined in png.h. */
#ifdef PNG_USE_GLOBAL_ARRAYS #ifdef PNG_USE_GLOBAL_ARRAYS
/* png_libpng_ver was changed to a function in version 1.0.5c */ /* png_libpng_ver was changed to a function in version 1.0.5c */
char png_libpng_ver[12] = "1.0.8beta3"; char png_libpng_ver[12] = "1.0.8beta4";
/* png_sig was changed to a function in version 1.0.5c */ /* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */ /* Place to hold the signature string for a PNG file. */
@ -140,6 +140,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
png_uint_32 num_bytes = (png_uint_32)items * size; png_uint_32 num_bytes = (png_uint_32)items * size;
png_voidp ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes); png_voidp ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes);
#ifndef PNG_NO_ZALLOC_ZERO
if (num_bytes > (png_uint_32)0x8000L) if (num_bytes > (png_uint_32)0x8000L)
{ {
png_memset(ptr, 0, (png_size_t)0x8000L); png_memset(ptr, 0, (png_size_t)0x8000L);
@ -150,6 +151,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
{ {
png_memset(ptr, 0, (png_size_t)num_bytes); png_memset(ptr, 0, (png_size_t)num_bytes);
} }
#endif
return ((voidpf)ptr); return ((voidpf)ptr);
} }
@ -616,7 +618,7 @@ png_charp PNGAPI
png_get_copyright(png_structp png_ptr) png_get_copyright(png_structp png_ptr)
{ {
if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */ if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */
return ("\n libpng version 1.0.8beta3 - July 11, 2000\n\ return ("\n libpng version 1.0.8beta4 - July 14, 2000\n\
Copyright (c) 1998-2000 Glenn Randers-Pehrson\n\ Copyright (c) 1998-2000 Glenn Randers-Pehrson\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\ Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n"); Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n");
@ -634,8 +636,8 @@ png_get_libpng_ver(png_structp png_ptr)
{ {
/* Version of *.c files used when building libpng */ /* Version of *.c files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */ if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return("1.0.8beta3"); return("1.0.8beta4");
return("1.0.8beta3"); return("1.0.8beta4");
} }
png_charp PNGAPI png_charp PNGAPI

22
png.h
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@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.0.8beta3 - July 11, 2000 * libpng version 1.0.8beta4 - July 14, 2000
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -9,7 +9,7 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * 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 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.0.8beta3 - July 11, 2000: Glenn * libpng versions 0.97, January 1998, through 1.0.8beta4 - July 14, 2000: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Note about libpng version numbers: * Note about libpng version numbers:
@ -82,7 +82,7 @@
* If you modify libpng you may insert additional notices immediately following * If you modify libpng you may insert additional notices immediately following
* this sentence. * this sentence.
* *
* libpng version 1.0.8beta3, July 11, 2000, is * libpng version 1.0.8beta4, July 14, 2000, is
* Copyright (c) 2000 Glenn Randers-Pehrson * Copyright (c) 2000 Glenn Randers-Pehrson
* Distributed according to the same disclaimer and license as libpng-1.0.6 * Distributed according to the same disclaimer and license as libpng-1.0.6
* with the following individuals added to the list of Contributing Authors * with the following individuals added to the list of Contributing Authors
@ -167,7 +167,7 @@
* printf("%s",png_get_copyright(NULL)); * printf("%s",png_get_copyright(NULL));
* *
* Also, the PNG logo (in PNG format, of course) is supplied in the * Also, the PNG logo (in PNG format, of course) is supplied in the
* file "pngnow.png". * files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
*/ */
/* /*
@ -187,13 +187,13 @@
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* July 11, 2000 * July 14, 2000
* *
* Since the PNG Development group is an ad-hoc body, we can't make * Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration. * an official declaration.
* *
* This is your unofficial assurance that libpng from version 0.71 and * This is your unofficial assurance that libpng from version 0.71 and
* upward through 1.0.8beta3 are Y2K compliant. It is my belief that earlier * upward through 1.0.8beta4 are Y2K compliant. It is my belief that earlier
* versions were also Y2K compliant. * versions were also Y2K compliant.
* *
* Libpng only has three year fields. One is a 2-byte unsigned integer * Libpng only has three year fields. One is a 2-byte unsigned integer
@ -249,7 +249,7 @@
*/ */
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.8beta3" #define PNG_LIBPNG_VER_STRING "1.0.8beta4"
#define PNG_LIBPNG_VER_SONUM 2 #define PNG_LIBPNG_VER_SONUM 2
@ -259,7 +259,7 @@
#define PNG_LIBPNG_VER_RELEASE 8 #define PNG_LIBPNG_VER_RELEASE 8
/* This should match the numeric part of the final component of /* This should match the numeric part of the final component of
* PNG_LIBPNG_VER_STRING, omitting any leading zero: */ * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
#define PNG_LIBPNG_VER_BUILD 3 #define PNG_LIBPNG_VER_BUILD 4
/* Careful here. At one time, Guy wanted to use 082, but that would be octal. /* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros. * We must not include leading zeros.
@ -1147,9 +1147,9 @@ struct png_struct_def
}; };
/* This prevents a compiler error in png_get_copyright() in png.c if png.c /* This prevents a compiler error in png_get_copyright() in png.c if png.c
and png.h are both at * version 1.0.8beta3 and png.h are both at * version 1.0.8beta4
*/ */
typedef png_structp version_1_0_8beta3; typedef png_structp version_1_0_8beta4;
typedef png_struct FAR * FAR * png_structpp; typedef png_struct FAR * FAR * png_structpp;
@ -2171,7 +2171,7 @@ 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)); extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
#define PNG_HEADER_VERSION_STRING \ #define PNG_HEADER_VERSION_STRING \
" libpng version 1.0.8beta3 - July 11, 2000 (header)\n" " libpng version 1.0.8beta4 - July 14, 2000 (header)\n"
#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
/* With these routines we avoid an integer divide, which will be slower on /* With these routines we avoid an integer divide, which will be slower on

2
pngasmrd.h
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@ -1,6 +1,6 @@
/* pngasmrd.h - assembler version of utilities to read a PNG file /* pngasmrd.h - assembler version of utilities to read a PNG file
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1999, 2000 Glenn Randers-Pehrson
* *

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117
pngconf.h
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@ -1,6 +1,6 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -49,6 +49,60 @@
#define PNG_MAX_MALLOC_64K #define PNG_MAX_MALLOC_64K
#endif #endif
/* Special munging to support doing things the 'cygwin' way:
* 'Normal' png-on-win32 defines/defaults:
* PNG_BUILD_DLL -- building dll
* PNG_USE_DLL -- building an application, linking to dll
* (no define) -- building static library, or building an
* application and linking to the static lib
* 'Cygwin' defines/defaults:
* PNG_BUILD_DLL -- building the dll
* (no define) -- building an application, linking to the dll
* PNG_STATIC -- building the static lib, or building an application
* which links to the static lib.
* Thus,
* a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
* this bit of #ifdefs will define the 'correct' config variables based on
* that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
* unnecessary.
*/
#if defined(__CYGWIN__)
# if defined(PNG_BUILD_DLL)
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
# if defined(PNG_STATIC)
# undef PNG_STATIC
# endif
# else
# if defined(PNG_STATIC)
# if defined(PNG_USE_DLL)
# undef PNG_USE_DLL
# endif
# if defined(PNG_DLL)
# undef PNG_DLL
# endif
# else
# if defined(PNG_USE_DLL)
# if !defined(PNG_DLL)
# define PNG_DLL
# endif
# else
# if defined(PNG_DLL)
# define PNG_USE_DLL
# else
# define PNG_USE_DLL
# define PNG_DLL
# endif
# endif
# endif
# endif
#endif
/* This protects us against compilers that run on a windowing system /* This protects us against compilers that run on a windowing system
* and thus don't have or would rather us not use the stdio types: * and thus don't have or would rather us not use the stdio types:
* stdin, stdout, and stderr. The only one currently used is stderr * stdin, stdout, and stderr. The only one currently used is stderr
@ -534,6 +588,9 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
#ifndef PNG_NO_USER_MEM #ifndef PNG_NO_USER_MEM
#define PNG_USER_MEM_SUPPORTED #define PNG_USER_MEM_SUPPORTED
#endif #endif
#ifndef PNG_NO_ZALLOC_ZERO
#define PNG_ZALLOC_ZERO
#endif
*/ */
/* This is only for PowerPC big-endian and 680x0 systems */ /* This is only for PowerPC big-endian and 680x0 systems */
@ -854,7 +911,7 @@ typedef size_t png_size_t;
#define LDATA 0 #define LDATA 0
#endif #endif
#if !defined(__WIN32__) && !defined(__FLAT__) #if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
#define PNG_MAX_MALLOC_64K #define PNG_MAX_MALLOC_64K
#if (LDATA != 1) #if (LDATA != 1)
#ifndef FAR #ifndef FAR
@ -868,7 +925,7 @@ typedef size_t png_size_t;
* const if your compiler supports it. (SJT) * const if your compiler supports it. (SJT)
# define FARDATA FAR # define FARDATA FAR
*/ */
#endif /* __WIN32__, __FLAT__ */ #endif /* __WIN32__, __FLAT__, __CYGWIN__ */
#endif /* __BORLANDC__ */ #endif /* __BORLANDC__ */
@ -952,11 +1009,42 @@ typedef z_stream FAR * png_zstreamp;
* It is equivalent to Microsoft predefined macro _DLL which is * It is equivalent to Microsoft predefined macro _DLL which is
* automatically defined when you compile using the share * automatically defined when you compile using the share
* version of the CRT (C Run-Time library) * version of the CRT (C Run-Time library)
*
* The cygwin mods make this behavior a little different:
* Define PNG_BUILD_DLL if you are building a dll for use with cygwin
* Define PNG_STATIC if you are building a static library for use with cygwin,
* -or- if you are building an application that you want to link to the
* static library.
* PNG_USE_DLL is defined by default (no user action needed) unless one of
* the other flags is defined.
*/ */
#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
# define PNG_DLL # define PNG_DLL
#endif #endif
/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
* When building a static lib, default to no GLOBAL ARRAYS, but allow
* command-line override
*/
#if defined(__CYGWIN__)
# if !defined(PNG_STATIC)
# if defined(PNG_USE_GLOBAL_ARRAYS)
# undef PNG_USE_GLOBAL_ARRAYS
# endif
# if !defined(PNG_USE_LOCAL_ARRAYS)
# define PNG_USE_LOCAL_ARRAYS
# endif
# else
# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
# if defined(PNG_USE_GLOBAL_ARRAYS)
# undef PNG_USE_GLOBAL_ARRAYS
# endif
# endif
# endif
# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
# define PNG_USE_LOCAL_ARRAYS
# endif
#endif
/* Do not use global arrays (helps with building DLL's) /* Do not use global arrays (helps with building DLL's)
* They are no longer used in libpng itself, since version 1.0.5c, * They are no longer used in libpng itself, since version 1.0.5c,
@ -972,7 +1060,8 @@ typedef z_stream FAR * png_zstreamp;
#ifndef PNGAPI #ifndef PNGAPI
#if defined(__MINGW32__) || defined(__CYGWIN32__) && !defined(PNG_MODULEDEF)
#if defined(__MINGW32__) || defined(__CYGWIN__) && !defined(PNG_MODULEDEF)
# ifndef PNG_NO_MODULEDEF # ifndef PNG_NO_MODULEDEF
# define PNG_NO_MODULEDEF # define PNG_NO_MODULEDEF
# endif # endif
@ -983,8 +1072,9 @@ typedef z_stream FAR * png_zstreamp;
#endif #endif
#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
defined(_Windows) || defined(_WINDOWS) || \ (( defined(_Windows) || defined(_WINDOWS) || \
defined(WIN32) || defined(_WIN32) || defined(__WIN32__) defined(WIN32) || defined(_WIN32) || defined(__WIN32__) \
) && !defined(__CYGWIN__))
# ifdef __GNUC__ # ifdef __GNUC__
# define PNGAPI __cdecl # define PNGAPI __cdecl
@ -1026,11 +1116,18 @@ typedef z_stream FAR * png_zstreamp;
# endif # endif
# endif # endif
# endif /* PNG_IMPEXP */ # endif /* PNG_IMPEXP */
#else /* !(DLL || WINDOWS) */ #else /* !(DLL || non-cygwin WINDOWS) */
# if 0 /* ... other platforms, with other meanings */ # if defined(__CYGWIN__) && !defined(PNG_DLL)
# if !defined(PNG_IMPEXP)
# define PNG_IMPEXP
# endif
# define PNGAPI __cdecl
# else # else
# define PNGAPI # if 0 /* ... other platforms, with other meanings */
# define PNG_IMPEXP # else
# define PNGAPI
# define PNG_IMPEXP
# endif
# endif # endif
#endif #endif
#endif #endif

2
pngerror.c
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@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

6
pnggccrd.c
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@ -6,7 +6,7 @@
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm * and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
* for Intel's performance analysis of the MMX vs. non-MMX code. * for Intel's performance analysis of the MMX vs. non-MMX code.
* *
* libpng version 1.0.8beta3 - July 11, 2000 * libpng version 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation * Copyright (c) 1998, Intel Corporation
@ -166,9 +166,9 @@ static const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
static const int png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1}; static const int png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
#endif #endif
// djgpp and Win32 add their own underscores to global variables, // djgpp, Win32, and Cygwin add their own underscores to global variables,
// so define them without: // so define them without:
#if defined(__DJGPP__) || defined(WIN32) #if defined(__DJGPP__) || defined(WIN32) || defined(__CYGWIN__)
# define _unmask unmask # define _unmask unmask
# define _const4 const4 # define _const4 const4
# define _const6 const6 # define _const6 const6

2
pngget.c
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@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngmem.c
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@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation /* pngmem.c - stub functions for memory allocation
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngpread.c
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@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode /* pngpread.c - read a png file in push mode
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

6
pngread.c
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@ -1,7 +1,7 @@
/* pngread.c - read a PNG file /* pngread.c - read a PNG file
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -697,7 +697,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
* not called png_set_interlace_handling(), the display_row buffer will * not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it. * be ignored, so pass NULL to it.
* *
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8beta3 * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8beta4
*/ */
void PNGAPI void PNGAPI
@ -746,7 +746,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for * only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead. * each pass of a interlaced image, use png_read_rows() instead.
* *
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8beta3 * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8beta4
*/ */
void PNGAPI void PNGAPI
png_read_image(png_structp png_ptr, png_bytepp image) png_read_image(png_structp png_ptr, png_bytepp image)

2
pngrio.c
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@ -1,7 +1,7 @@
/* pngrio.c - functions for data input /* pngrio.c - functions for data input
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngrtran.c
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@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers /* pngrtran.c - transforms the data in a row for PNG readers
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngrutil.c
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@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngset.c
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@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

4
pngtest.c
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@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng /* pngtest.c - a simple test program to test libpng
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@ -1435,4 +1435,4 @@ main(int argc, char *argv[])
} }
/* Generate a compiler error if there is an old png.h in the search path. */ /* Generate a compiler error if there is an old png.h in the search path. */
typedef version_1_0_8beta3 your_png_h_is_not_version_1_0_8beta3; typedef version_1_0_8beta4 your_png_h_is_not_version_1_0_8beta4;

2
pngtrans.c
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@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngvcrd.c
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@ -2,7 +2,7 @@
* *
* For Intel x86 CPU and Microsoft Visual C++ compiler * For Intel x86 CPU and Microsoft Visual C++ compiler
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation * Copyright (c) 1998, Intel Corporation

2
pngwio.c
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@ -1,7 +1,7 @@
/* pngwio.c - functions for data output /* pngwio.c - functions for data output
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngwrite.c
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@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngwtran.c
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@ -1,7 +1,7 @@
/* pngwtran.c - transforms the data in a row for PNG writers /* pngwtran.c - transforms the data in a row for PNG writers
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
pngwutil.c
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@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file /* pngwutil.c - utilities to write a PNG file
* *
* libpng 1.0.8beta3 - July 11, 2000 * libpng 1.0.8beta4 - July 14, 2000
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

2
scripts/makefile.beos
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@ -31,7 +31,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.8beta3 PNGMIN = 1.0.8beta4
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
# where make install puts libpng.a, libpng.so*, and png.h # where make install puts libpng.a, libpng.so*, and png.h

165
scripts/makefile.cygwin Normal file
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@ -0,0 +1,165 @@
# makefile for cygwin on x86
# builds both dll (with import lib) and static lib versions
# of the library, and builds two copies of pngtest: one
# statically linked and one dynamically linked.
#
# based on makefile for linux-elf w/mmx by:
# Copyright (C) 1998-2000 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
# For conditions of distribution and use, see copyright notice in png.h
# To enable assembler optimizations, add '-DPNG_USE_PNGGCCRD' to
# $CFLAGS, and include pnggccrd.o in $OBJS, below.
CC=gcc
# where "make install" puts libpng.a, libpng.so*, png.h and pngconf.h
prefix=/usr
# Where the zlib library and include files are located
ZLIBLIB=${prefix}/lib
ZLIBINC=${prefix}/include
#ZLIBLIB=../zlib
#ZLIBINC=../zlib
SHAREDLIB=libpng.dll
STATLIB=libpng.a
IMPLIB=libpng.dll.a
SHAREDDEF=libpng.def
LIBS=$(SHAREDLIB) $(STATLIB)
EXE=.exe
ALIGN=
# for i386:
#ALIGN=-malign-loops=2 -malign-functions=2
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
#CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
# -fomit-frame-pointer # $(WARNMORE) -g -DPNG_DEBUG=5
CFLAGS=-I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
-fomit-frame-pointer
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
LDSHARED=gcc -shared -Wl,--enable-auto-image-base
LDEXTRA=-Wl,--out-implib=$(IMPLIB) $(SHAREDDEF)
RANLIB=ranlib
#RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it.
PNGMAJ = 2
PNGMIN = 1.0.8beta3
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib
BINPATH=$(prefix)/bin
MANPATH=$(prefix)/man
MAN3PATH=$(MANPATH)/man3
DOCPATH=$(prefix)/doc/libpng-$(PNGMIN)
CYGDOCPATH=$(prefix)/doc/Cygwin
OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
pngwtran.o pngmem.o pngerror.o pngpread.o # pnggccrd.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
%.o : %.c
$(CC) -c $(CFLAGS) -DPNG_STATIC -DZLIB_STATIC -o $@ $<
%.pic.o : %.c
$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
all: $(SHAREDLIB) $(STATLIB) pngtest$(EXE) pngtest-stat$(EXE)
pnggccrd.o: png.h pngconf.h pngasmrd.h
@echo ""
@echo ' You can ignore the single "control reaches end of non-void function"'
@echo ' warning and multiple "<variable> defined but not used" warnings:'
@echo ""
$(CC) -c $(CFLAGS) -DPNG_STATIC -DZLIB_STATIC -o $@ $*.c
pnggccrd.pic.o: png.h pngconf.h pngasmrd.h
@echo ""
@echo ' You can ignore the single "control reaches end of non-void function"'
@echo ' warning and multiple "<variable> defined but not used" warnings:'
@echo ""
$(CC) -c $(CFLAGS) -o $@ pnggccrd.c
$(STATLIB): $(OBJS)
ar rc $@ $(OBJS)
$(RANLIB) $@
$(SHAREDDEF): msvc/png32ms.def
cat $< | sed -e '1{G;s/^\(.*\)\(\n\)/EXPORTS/;};2,/^EXPORTS/d' > $@
$(SHAREDLIB): $(OBJSDLL) $(SHAREDDEF)
$(LDSHARED) -o $@ $(LDEXTRA) $(OBJSDLL) -L. -L$(ZLIBLIB) -lz
pngtest$(EXE): pngtest.pic.o $(SHAREDLIB)
$(CC) $(CFLAGS) $< $(LDFLAGS) -o $@
pngtest-stat$(EXE): pngtest.o $(STATLIB)
$(CC) -static $(CFLAGS) $< $(LDFLAGS) -o $@
pngtest.pic.o: pngtest.c
$(CC) $(CFLAGS) -c $< -o $@
pngtest.o: pngtest.c
$(CC) $(CFLAGS) -DPNG_STATIC -DZLIB_STATIC -c $< -o $@
test: test-dll test-stat
test-stat: pngtest-stat$(EXE)
./pngtest-stat
test-dll: pngtest$(EXE)
./pngtest
install: $(STATLIB) $(SHAREDLIB)
-@if [ ! -d $(INCPATH) ]; then mkdir -p $(INCPATH); fi
-@if [ ! -d $(LIBPATH) ]; then mkdir -p $(LIBPATH); fi
-@if [ ! -d $(BINPATH) ]; then mkdir -p $(BINPATH); fi
-@if [ ! -d $(MAN3PATH) ]; then mkdir -p $(MAN3PATH); fi
-@if [ ! -d $(DOCPATH) ]; then mkdir -p $(DOCPATH); fi
install -m 644 png.h pngconf.h $(INCPATH)
install -m 755 $(STATLIB) $(IMPLIB) $(LIBPATH)
install -s -m 755 $(SHAREDLIB) $(BINPATH)
install -m 644 $(DOCS) $(DOCPATH)
install -m 644 libpngpf.3 libpng.3 $(MAN3PATH)
clean:
/bin/rm -f *.pic.o *.o $(STATLIB) $(IMPLIB) $(SHAREDLIB) \
pngtest-stat$(EXE) pngtest$(EXE) pngout.png $(SHAREDDEF)
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o png.pic.o: png.h pngconf.h png.c pngasmrd.h
pngerror.o pngerror.pic.o: png.h pngconf.h pngerror.c
pngrio.o pngrio.pic.o: png.h pngconf.h pngrio.c
pngwio.o pngwio.pic.o: png.h pngconf.h pngwio.c
pngmem.o pngmem.pic.o: png.h pngconf.h pngmem.c
pngset.o pngset.pic.o: png.h pngconf.h pngset.c
pngget.o pngget.pic.o: png.h pngconf.h pngget.c
pngread.o pngread.pic.o: png.h pngconf.h pngread.c
pngrtran.o pngrtran.pic.o: png.h pngconf.h pngrtran.c
pngrutil.o pngrutil.pic.o: png.h pngconf.h pngrutil.c pngasmrd.h
pngtrans.o pngtrans.pic.o: png.h pngconf.h pngtrans.c
pngwrite.o pngwrite.pic.o: png.h pngconf.h pngwrite.c
pngwtran.o pngwtran.pic.o: png.h pngconf.h pngwtran.c
pngwutil.o pngwutil.pic.o: png.h pngconf.h pngwutil.c
pngpread.o pngpread.pic.o: png.h pngconf.h pngpread.c
pngtest.o: png.h pngconf.h pngtest.c
pngtest-stat.o: png.h pngconf.h pngtest.c

2
scripts/makefile.dec
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@ -14,7 +14,7 @@ ZLIBINC=../zlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.8beta3 PNGMIN = 1.0.8beta4
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
CC=cc CC=cc

4
scripts/makefile.gcmmx
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@ -3,6 +3,8 @@
# Copyright 1998-2000 Greg Roelofs # Copyright 1998-2000 Greg Roelofs
# For conditions of distribution and use, see copyright notice in png.h # For conditions of distribution and use, see copyright notice in png.h
# CAUTION: Do not use this makefile with gcc versions 2.7.2.2 and earlier.
CC=gcc CC=gcc
# where "make install" puts libpng.a, libpng.so*, png.h and pngconf.h # where "make install" puts libpng.a, libpng.so*, png.h and pngconf.h
@ -34,7 +36,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.8beta3 PNGMIN = 1.0.8beta4
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.linux
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@ -34,7 +34,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.8beta3 PNGMIN = 1.0.8beta4
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.sco
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@ -25,7 +25,7 @@ RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.8beta3 PNGMIN = 1.0.8beta4
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

4
scripts/makefile.sggcc
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@ -19,8 +19,8 @@ CFLAGS=-I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32 # -g -DPNG_DEBUG=5
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=gcc -shared LDSHARED=gcc -shared
VER=1.0.8beta3 VER=1.0.8beta4
LIBS=libpng.so.1.0.8beta3 LIBS=libpng.so.1.0.8beta4
SHAREDLIB=libpng.so SHAREDLIB=libpng.so
libdir=$(prefix)/lib32 libdir=$(prefix)/lib32

2
scripts/makefile.solaris
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@ -31,7 +31,7 @@ RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.8beta3 PNGMIN = 1.0.8beta4
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/pngdef.pas
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@ -5,7 +5,7 @@ unit pngdef;
interface interface
const const
PNG_LIBPNG_VER_STRING = '1.0.8beta3'; PNG_LIBPNG_VER_STRING = '1.0.8beta4';
PNG_LIBPNG_VER = 10008; PNG_LIBPNG_VER = 10008;
type type