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Imported from libpng-1.0.4e.tar

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Glenn Randers-Pehrson 1999-10-10 17:50:00 -05:00
parent 310faa8ec9
commit 18c415f5b5
37 changed files with 3906 additions and 3898 deletions
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8
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.0.4d - October 6, 1999 Libpng 1.0.4e - October 10, 1999
This is not intended to be a public release. It will be replaced This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version. within a few weeks by a public version or by another test version.
@ -80,9 +80,13 @@ version 1.0.4b September 30, 1999
a helpful compiler error if an old png.h is found in the search path. a helpful compiler error if an old png.h is found in the search path.
version 1.0.4c October 1, 1999 version 1.0.4c October 1, 1999
Changed type of png_user_transform_depth|channels from int to png_byte. Changed type of png_user_transform_depth|channels from int to png_byte.
version 1.0.4d [October 6, 1999] version 1.0.4e [October 10, 1999]
Changed 0.45 to 0.45455 in png_set_sRGB() Changed 0.45 to 0.45455 in png_set_sRGB()
Removed unused PLTE entries from pngnow.png Removed unused PLTE entries from pngnow.png
Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
version 1.0.4e [October 10, 1999]
Fixed sign error in pngvcrd.c (Greg Roelofs)
Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)
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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@ -459,7 +459,11 @@ version 1.0.4b [September 30, 1999]
version 1.0.4c [October 1, 1999] version 1.0.4c [October 1, 1999]
Added a "png_check_version" function in png.c and pngtest.c that will generate Added a "png_check_version" function in png.c and pngtest.c that will generate
a helpful compiler error if an old png.h is found in the search path. a helpful compiler error if an old png.h is found in the search path.
version 1.0.4d [October 6, 1999]
Changed type of png_user_transform_depth|channels from int to png_byte. Changed type of png_user_transform_depth|channels from int to png_byte.
version 1.0.4d [October 6, 1999]
Changed 0.45 to 0.45455 in png_set_sRGB() Changed 0.45 to 0.45455 in png_set_sRGB()
Removed unused PLTE entries from pngnow.png Removed unused PLTE entries from pngnow.png
Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
version 1.0.4e [October 10, 1999]
Fixed sign error in pngvcrd.c (Greg Roelofs)
Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)

8
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.4d - October 6, 1999 Installing libpng version 1.0.4e - October 10, 1999
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-1.0.4d" or "lpng103" and "zlib-1.1.3" might be called "libpng-1.0.4e" or "lpng103" 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:
@ -47,8 +47,8 @@ include
makefile.hpux => HPUX (10.20 and 11.00) makefile makefile.hpux => HPUX (10.20 and 11.00) makefile
makefile.sgi => Silicon Graphics IRIX makefile makefile.sgi => Silicon Graphics IRIX makefile
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.4d) makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.4e)
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.4d) makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.4e)
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
LICENSE
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@ -5,7 +5,7 @@ Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
Copyright (c) 1996, 1997 Andreas Dilger Copyright (c) 1996, 1997 Andreas Dilger
(libpng versions 0.90, December 1996, through 0.96, May 1997) (libpng versions 0.90, December 1996, through 0.96, May 1997)
Copyright (c) 1998, 1999 Glenn Randers-Pehrson Copyright (c) 1998, 1999 Glenn Randers-Pehrson
(libpng versions 0.97, January 1998, through 1.0.4d, October 6, 1999) (libpng versions 0.97, January 1998, through 1.0.4e, October 10, 1999)
For the purposes of this copyright and license, "Contributing Authors" For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals: is defined as the following set of individuals:
@ -56,4 +56,4 @@ appreciated.
Glenn Randers-Pehrson Glenn Randers-Pehrson
randeg@alum.rpi.edu randeg@alum.rpi.edu
October 6, 1999 October 10, 1999

6
README
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@ -1,4 +1,4 @@
README for libpng 1.0.4d - October 6, 1999 (shared library 2.1) README for libpng 1.0.4e - October 10, 1999 (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.
@ -163,9 +163,9 @@ Files in this distribution:
makefile.sgi => Silicon Graphics IRIX makefile makefile.sgi => Silicon Graphics IRIX makefile
makefile.sunos => Sun makefile makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile makefile.solaris => Solaris 2.X makefile
(gcc, creates libpng.so.2.1.0.4d) (gcc, creates libpng.so.2.1.0.4e)
makefile.linux => Linux/ELF makefile makefile.linux => Linux/ELF makefile
(gcc, creates libpng.so.2.1.0.4d) (gcc, creates libpng.so.2.1.0.4e)
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:
========================= =========================
October 6, 1999 October 10, 1999
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 1.0.4d are Y2K compliant. It is my belief that earlier upward through 1.0.4e 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

14
libpng.3
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@ -1,6 +1,6 @@
.TH LIBPNG 3 "October 6, 1999" .TH LIBPNG 3 "October 10, 1999"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.4d - October 6, 1999 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.4e - October 10, 1999
.SH SYNOPSIS .SH SYNOPSIS
\fI\fB \fI\fB
@ -617,7 +617,7 @@ 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 1.0.4d - October 6, 1999 libpng version 1.0.4e - October 10, 1999
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 Glenn Randers-Pehrson Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@ -2675,13 +2675,13 @@ the old method.
.SH VII. Y2K Compliance in libpng .SH VII. Y2K Compliance in libpng
October 6, 1999 October 10, 1999
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 1.0.4d are Y2K compliant. It is my belief that earlier upward through 1.0.4e 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
@ -2807,7 +2807,7 @@ 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 1.0.4d - October 6, 1999: Libpng version 1.0.4e - October 10, 1999:
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).
@ -2822,7 +2822,7 @@ Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
Copyright (c) 1996, 1997 Andreas Dilger Copyright (c) 1996, 1997 Andreas Dilger
(libpng versions 0.90, December 1996, through 0.96, May 1997) (libpng versions 0.90, December 1996, through 0.96, May 1997)
Copyright (c) 1998, 1999 Glenn Randers-Pehrson Copyright (c) 1998, 1999 Glenn Randers-Pehrson
(libpng versions 0.97, January 1998, through 1.0.4d, October 6, 1999) (libpng versions 0.97, January 1998, through 1.0.4e, October 10, 1999)
For the purposes of this copyright and license, "Contributing Authors" For the purposes of this copyright and license, "Contributing Authors"
is defined as the following set of individuals: is defined as the following set of individuals:

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 1.0.4d - October 6, 1999 libpng version 1.0.4e - October 10, 1999
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 Glenn Randers-Pehrson Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@ -2058,13 +2058,13 @@ the old method.
VII. Y2K Compliance in libpng VII. Y2K Compliance in libpng
October 6, 1999 October 10, 1999
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 1.0.4d are Y2K compliant. It is my belief that earlier upward through 1.0.4e 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 October 6, 1999 .TH LIBPNGPF 3 October 10, 1999
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.4d - October 6, 1999 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.4e - October 10, 1999
(private functions) (private functions)
.SH SYNOPSIS .SH SYNOPSIS
\fB#include <png.h>\fP \fB#include <png.h>\fP

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "October 6, 1999" .TH PNG 5 "October 10, 1999"
.SH NAME .SH NAME
png \- Portable Network Graphics (PNG) format png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION .SH DESCRIPTION

10
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 1.0.4d - October 6, 1999 * libpng version 1.0.4e - October 10, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@ -16,7 +16,7 @@
* string defined in png.h. * string defined in png.h.
*/ */
char png_libpng_ver[12] = "1.0.4d"; char png_libpng_ver[12] = "1.0.4e";
/* Place to hold the signature string for a PNG file. */ /* Place to hold the signature string for a PNG file. */
png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10}; png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
@ -352,7 +352,7 @@ png_get_copyright(png_structp png_ptr)
{ {
if(png_ptr == NULL) if(png_ptr == NULL)
/* silence compiler warning about unused png_ptr */ ; /* silence compiler warning about unused png_ptr */ ;
return("\n libpng version 1.0.4d - October 6, 1999\n\ return("\n libpng version 1.0.4e - October 10, 1999\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\ Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\ Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1998, 1999 Glenn Randers-Pehrson\n"); Copyright (c) 1998, 1999 Glenn Randers-Pehrson\n");
@ -361,8 +361,8 @@ png_get_copyright(png_structp png_ptr)
/* 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. */
void void
png_check_version png_check_version
(version_1_0_4d png_h_is_not_version_1_0_4d) (version_1_0_4e png_h_is_not_version_1_0_4e)
{ {
if(png_h_is_not_version_1_0_4d == NULL) if(png_h_is_not_version_1_0_4e == NULL)
/* silence compiler warning about unused parameter */ ; /* silence compiler warning about unused parameter */ ;
} }

20
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 1.0.4d - October 6, 1999 * libpng version 1.0.4e - October 10, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@ -9,19 +9,19 @@
* Authors and maintainers: * Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.89c, May 1996: Guy Schalnat * libpng versions 0.71, May 1995, through 0.89c, May 1996: Guy Schalnat
* libpng versions 0.90, December 1996, through 0.96, May 1997: Andreas Dilger * libpng versions 0.90, December 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.0.4d - October 6, 1999: Glenn * libpng versions 0.97, January 1998, through 1.0.4e - October 10, 1999: Glenn
* See also "Contributing Authors", below. * See also "Contributing Authors", below.
* *
* Y2K compliance in libpng: * Y2K compliance in libpng:
* ========================= * =========================
* *
* October 6, 1999 * October 10, 1999
* *
* 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 1.0.4d are Y2K compliant. It is my belief that earlier * upward through 1.0.4e 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
@ -95,7 +95,7 @@
* 1.0.3 1.0.3 10003 2.1.0.3 * 1.0.3 1.0.3 10003 2.1.0.3
* 1.0.3a-d 1.0.3a-d 10004 2.1.0.3a-d * 1.0.3a-d 1.0.3a-d 10004 2.1.0.3a-d
* 1.0.4 1.0.4 10004 2.1.0.4 * 1.0.4 1.0.4 10004 2.1.0.4
* 1.0.4a-c 1.0.4a-c 10005 2.1.0.4a-c * 1.0.4a-e 1.0.4a-e 10005 2.1.0.4a-e
* 1.0.5 1.0.5 10005 2.1.0.5 * 1.0.5 1.0.5 10005 2.1.0.5
* *
* Henceforth the source version will match the shared-library minor * Henceforth the source version will match the shared-library minor
@ -117,7 +117,7 @@
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* (libpng versions 0.90, December 1996, through 0.96, May 1997) * (libpng versions 0.90, December 1996, through 0.96, May 1997)
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* (libpng versions 0.97, January 1998, through 1.0.4d, October 6, 1999) * (libpng versions 0.97, January 1998, through 1.0.4e, October 10, 1999)
* *
* For the purposes of this copyright and license, "Contributing Authors" * For the purposes of this copyright and license, "Contributing Authors"
* is defined as the following set of individuals: * is defined as the following set of individuals:
@ -208,7 +208,7 @@ extern "C" {
*/ */
/* 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 "1.0.4d" #define PNG_LIBPNG_VER_STRING "1.0.4e"
/* 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.
@ -806,9 +806,9 @@ 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 1.0.4d and png.h are both at * version 1.0.4e
*/ */
typedef png_structp version_1_0_4d; typedef png_structp version_1_0_4e;
typedef png_struct FAR * FAR * png_structpp; typedef png_struct FAR * FAR * png_structpp;
@ -1629,7 +1629,7 @@ png_get_header_version(png_structp png_ptr)
{ {
if(png_ptr == NULL) if(png_ptr == NULL)
/* silence compiler warning about unused png_ptr */ ; /* silence compiler warning about unused png_ptr */ ;
return("\n libpng version 1.0.4d - October 6, 1999 (header)\n"); return("\n libpng version 1.0.4e - October 10, 1999 (header)\n");
} }
#endif #endif

4
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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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 Glenn Randers-Pehrson * Copyright (c) 1999 Glenn Randers-Pehrson
* *
@ -21,7 +21,7 @@
/* Set this in the makefile for gcc on Pentium, not in pngconf.h */ /* Set this in the makefile for gcc on Pentium, not in pngconf.h */
#ifdef PNG_USE_PNGGCCRD #ifdef PNG_USE_PNGGCCRD
/* Platform must be Pentium. Makefile must assemble and load pnggccrd.c /* Platform must be Pentium. Makefile must assemble and load pnggccrd.c
* (not available in libpng 1.0.4d). * (not available in libpng 1.0.4e).
* MMX will be detected at run time and used if present. * MMX will be detected at run time and used if present.
*/ */
#define PNG_HAVE_ASSEMBLER_COMBINE_ROW #define PNG_HAVE_ASSEMBLER_COMBINE_ROW

2
pngconf.h
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@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * 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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

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pngnow.png
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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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

8
pngread.c
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@ -1,7 +1,7 @@
/* pngread.c - read a PNG file /* pngread.c - read a PNG file
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
@ -465,10 +465,8 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
png_ptr->row_info.channels = png_ptr->channels; png_ptr->row_info.channels = png_ptr->channels;
png_ptr->row_info.bit_depth = png_ptr->bit_depth; png_ptr->row_info.bit_depth = png_ptr->bit_depth;
png_ptr->row_info.pixel_depth = png_ptr->pixel_depth; png_ptr->row_info.pixel_depth = png_ptr->pixel_depth;
{
png_ptr->row_info.rowbytes = ((png_ptr->row_info.width * png_ptr->row_info.rowbytes = ((png_ptr->row_info.width *
(png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3); (png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);
}
png_read_filter_row(png_ptr, &(png_ptr->row_info), png_read_filter_row(png_ptr, &(png_ptr->row_info),
png_ptr->row_buf + 1, png_ptr->prev_row + 1, png_ptr->row_buf + 1, png_ptr->prev_row + 1,
@ -531,7 +529,7 @@ 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 1.0.4d. * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.4e.
*/ */
void void
@ -580,7 +578,7 @@ 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 1.0.4d. * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.4e.
*/ */
void void
png_read_image(png_structp png_ptr, png_bytepp image) png_read_image(png_structp png_ptr, png_bytepp image)

2
pngrio.c
View File

@ -1,7 +1,7 @@
/* pngrio.c - functions for data input /* pngrio.c - functions for data input
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
pngrtran.c
View File

@ -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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
pngrutil.c
View File

@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
pngset.c
View File

@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

6
pngtest.c
View File

@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng /* pngtest.c - a simple test program to test libpng
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
@ -1172,7 +1172,7 @@ 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. */
void void
png_check_pngtest_version png_check_pngtest_version
(version_1_0_4d png_h_is_not_version_1_0_4d) (version_1_0_4e png_h_is_not_version_1_0_4e)
{ {
if(png_h_is_not_version_1_0_4d == NULL) return; if(png_h_is_not_version_1_0_4e == NULL) return;
} }

2
pngtrans.c
View File

@ -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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

62
pngvcrd.c
View File

@ -2,7 +2,7 @@
* *
* For Intel x86 CPU and Microsoft Visual C++ compiler * For Intel x86 CPU and Microsoft Visual C++ compiler
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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, Intel Corporation * Copyright (c) 1998, Intel Corporation
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@ -26,7 +26,6 @@ png_read_filter_row_c(png_structp png_ptr, png_row_infop row_info,
static int mmxsupport() static int mmxsupport()
{ {
int mmx_supported_local = 0; int mmx_supported_local = 0;
_asm { _asm {
pushfd //Save Eflag to stack pushfd //Save Eflag to stack
pop eax //Get Eflag from stack into eax pop eax //Get Eflag from stack into eax
@ -968,11 +967,13 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
png_debug(1,"in png_do_read_interlace\n"); png_debug(1,"in png_do_read_interlace\n");
#ifdef DISABLE_PNGVCRD_INTERLACE #ifdef DISABLE_PNGVCRD_INTERLACE
/* A sign error in the post-MMX cleanup code for each pixel_depth resulted /* In libpng versions 1.0.3a through 1.0.4d,
* a sign error in the post-MMX cleanup code for each pixel_depth resulted
* in bad pixels at the beginning of some rows of some images, and also * in bad pixels at the beginning of some rows of some images, and also
* (due to out-of-range memory reads and writes) caused heap corruption * (due to out-of-range memory reads and writes) caused heap corruption
* when compiled with MSVC 6.0. The error is now fixed, and the code * when compiled with MSVC 6.0. The error was fixed in version 1.0.4e,
* appears to work completely correctly, so it is enabled by default. * and the code appears to work completely correctly, so it is enabled
* by default.
*/ */
if (1) /* all passes caused a heap problem in the old code */ if (1) /* all passes caused a heap problem in the old code */
mmx_supported = 0; mmx_supported = 0;
@ -1342,16 +1343,29 @@ loop1_pass0:
dp -= width_mmx*8; dp -= width_mmx*8;
for (i = width; i; i--) for (i = width; i; i--)
{ {
png_byte v[8];
int j; int j;
png_memcpy(v, sptr, pixel_bytes); /* I simplified this part in version 1.0.4e
* here and in several other instances where
* pixel_bytes == 1 -- GR-P
*
* Original code:
*
* png_byte v[8];
* png_memcpy(v, sptr, pixel_bytes);
* for (j = 0; j < png_pass_inc[pass]; j++)
* {
* png_memcpy(dp, v, pixel_bytes);
* dp -= pixel_bytes;
* }
* sptr -= pixel_bytes;
*
* Replacement code is in the next three lines:
*/
for (j = 0; j < png_pass_inc[pass]; j++) for (j = 0; j < png_pass_inc[pass]; j++)
{ *dp-- = *sptr;
png_memcpy(dp, v, pixel_bytes); sptr--;
dp -= pixel_bytes;
}
sptr -= pixel_bytes;
} }
} }
else if ((pass == 2) || (pass == 3)) else if ((pass == 2) || (pass == 3))
@ -1387,16 +1401,13 @@ loop1_pass2:
dp -= width_mmx*4; dp -= width_mmx*4;
for (i = width; i; i--) for (i = width; i; i--)
{ {
png_byte v[8];
int j; int j;
png_memcpy(v, sptr, pixel_bytes);
for (j = 0; j < png_pass_inc[pass]; j++) for (j = 0; j < png_pass_inc[pass]; j++)
{ {
png_memcpy(dp, v, pixel_bytes); *dp-- = *sptr;
dp -= pixel_bytes;
} }
sptr -= pixel_bytes; sptr --;
} }
} }
else //if ((pass == 4) || (pass == 5)) else //if ((pass == 4) || (pass == 5))
@ -1433,16 +1444,13 @@ loop1_pass4:
dp -= width_mmx*2; dp -= width_mmx*2;
for (i = width; i; i--) for (i = width; i; i--)
{ {
png_byte v[8];
int j; int j;
png_memcpy(v, sptr, pixel_bytes);
for (j = 0; j < png_pass_inc[pass]; j++) for (j = 0; j < png_pass_inc[pass]; j++)
{ {
png_memcpy(dp, v, pixel_bytes); *dp-- = *sptr;
dp -= pixel_bytes;
} }
sptr -= pixel_bytes; sptr --;
} }
} }
} /* end of pixel_bytes == 1 */ } /* end of pixel_bytes == 1 */
@ -1768,16 +1776,10 @@ loop4_pass4:
{ {
for (i = width; i; i--) for (i = width; i; i--)
{ {
png_byte v[8];
int j; int j;
png_memcpy(v, sptr, pixel_bytes);
for (j = 0; j < png_pass_inc[pass]; j++) for (j = 0; j < png_pass_inc[pass]; j++)
{ *dp-- = *sptr;
png_memcpy(dp, v, pixel_bytes); sptr--;
dp -= pixel_bytes;
}
sptr -= pixel_bytes;
} }
} }
else if (pixel_bytes == 3) else if (pixel_bytes == 3)

2
pngwio.c
View File

@ -1,7 +1,7 @@
/* pngwio.c - functions for data output /* pngwio.c - functions for data output
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
pngwrite.c
View File

@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
pngwtran.c
View File

@ -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 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
pngwutil.c
View File

@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file /* pngwutil.c - utilities to write a PNG file
* *
* libpng 1.0.4d - October 6, 1999 * libpng 1.0.4e - October 10, 1999
* 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) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger

2
scripts/makefile.beos
View File

@ -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 = 1.0.4d PNGMIN = 1.0.4e
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

2
scripts/makefile.dec
View File

@ -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 = 1.0.4d PNGMIN = 1.0.4e
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
CC=cc CC=cc

2
scripts/makefile.linux
View File

@ -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 = 1.0.4d PNGMIN = 1.0.4e
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.sco
View File

@ -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 = 1.0.4d PNGMIN = 1.0.4e
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.solaris
View File

@ -36,7 +36,7 @@ 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 = 1.0.4d PNGMIN = 1.0.4e
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/pngdef.pas
View File

@ -3,7 +3,7 @@ unit pngdef;
interface interface
const const
PNG_LIBPNG_VER_STRING = '1.0.4d'; PNG_LIBPNG_VER_STRING = '1.0.4e';
PNG_LIBPNG_VER = 10005; PNG_LIBPNG_VER = 10005;
type type