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Glenn Randers-Pehrson 1999-01-13 22:06:39 -06:00
parent c944229859
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34 changed files with 347 additions and 115 deletions
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20
ANNOUNCE
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@ -1,12 +1,12 @@
Libpng 1.0.2b - January 6, 1999
Libpng 1.0.3 - January 14, 1999
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.
This is a public release of libpng, intended for use in production codes.
Changes since the last public release:
Changes since the previous public release (1.0.2):
libpng-1.0.3:
version 1.0.2a [December 30, 1998]
Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
Fixed a bug in png_do_filler() that made it fail to write filler bytes in
the left-most pixel of each row (Kevin Bracey).
@ -32,14 +32,22 @@ version 1.0.2a [December 30, 1998]
Removed lines after Dynamic Dependencies" in makefile.aco .
Revised makefile.dec to make a shared library (Jeremie Petit).
Removed trailing blanks from all files.
version 1.0.2b [January 6, 1999]
Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
which is obsolete.
Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO.
Send comments/corrections/commendations to
png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
Glenn R-P
Send comments/corrections/commendations to
png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
Glenn Randers-Pehrson
libpng maintainer
PNG Development Group

5
CHANGES
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@ -378,9 +378,12 @@ version 1.0.2a [December 30, 1998]
Removed lines after Dynamic Dependencies" in makefile.aco .
Revised makefile.dec to make a shared library (Jeremie Petit).
Removed trailing blanks from all files.
version 1.0.2b [January 6, 1999]
version 1.0.2a [January 6, 1999]
Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
which is obsolete.
version 1.0.3 [January 14, 1999]
Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO.

5
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.2b - January 6, 1999
Installing libpng version 1.0.3 - January 14, 1999
Before installing libpng, you must first install zlib. zlib
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.
You can rename the directories that you downloaded (they
might be called "libpng-1.0.2b" or "lpng103" and "zlib-1.1.3"
might be called "libpng-1.0.3" or "lpng103" and "zlib-1.1.3"
or "zlib113") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:
@ -42,6 +42,7 @@ include
makefile.std => Generic UNIX makefile
makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr
makefile.dec => DEC Alpha UNIX makefile
makefile.hux => HPUX (10.20 and 11.00) makefile
makefile.sgi => Silicon Graphics IRIX makefile
makefile.sun => Sun makefile
makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)

64
KNOWNBUG
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@ -1,5 +1,5 @@
Known bugs and suggested enhancements in libpng-1.0.2
Known bugs and suggested enhancements in libpng-1.0.3
1. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
@ -14,33 +14,10 @@ Known bugs and suggested enhancements in libpng-1.0.2
Question whether i-- or --i is better.
STATUS: Under investigation, postponed until after
libpng-1.0.2. About 160 loops will be turned around
libpng-1.0.3. About 160 loops will be turned around
in libpng-1.0.Nn, for testing.
2. June 15, 1998 -- BUG -- Evan Light
Under some conditions, 16-bit grayscale images aren't properly
expanded to rgb, because png_read_start_row() returns too small a
value of max_pixel_depth when png_set_filler() has also been called.
STATUS: Fixed in libpng-1.0.2a
3. June 16, 1998 -- BUG -- Matt McConnell
When reading interlaced images with a progressive reader, in some
cases (interlaced images less than 3 pixels high) some passes are
not skipped that should be.
STATUS: Fixed in libpng-1.0.2a
4. July 3, 1998 -- ENHANCEMENT -- Glenn R-P
Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
STATUS: Done in libpng-1.0.2a, awaiting comment on resulting test
images.
5. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
2. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
libpng-1.0.2 and earlier transform colors to gamma=1.0 space for
merging with background, and then back to the image's gamma. The
@ -52,39 +29,4 @@ Known bugs and suggested enhancements in libpng-1.0.2
STATUS: under development.
6. August 20, 1998 -- BUG -- Kevin Bracey
When using the filler transformation, the filler isn't written
into the leftmost pixel of each row.
Also, the filler operation isn't being done right when writing
files. Some code that was removed from png_set_filler() in
libpng 1.0.1a shouldn't have been removed.
STATUS: Fixed in libpng-1.0.2a
7. August 23, 1998 -- BUG -- Duncan Simpson
"static pngcharp tIME_string" should be changed to
"static char tIME_string[30]" in pngtest.c
Also -- December 30, 1998 -- there are some misplaced brackets in
pngtest.c that cause pngtest to try to write a tIME chunk
even when no tIME chunk was present in the source file.
STATUS: Fixed in libpng-1.0.2a
8. August 24, 1998 -- BUG -- John Cromer
Order of byte-swap and shift operations seems to be incorrect in
png_do_write_transformations()
STATUS: Under investigation.
9. September 11, 1998 -- ENHANCEMENT -- L. Peter Deutsch
The PNG_NO_STDIO macro should be split into PNG_NO_STDIO
and PNG_NO_CONSOLE_STDIO.
STATUS: Done in libpng-1.0.2a

3
README
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@ -1,4 +1,4 @@
README for libpng 1.0.2b - January 6, 1999 (shared library 2.1)
README for libpng 1.0.3 - January 14, 1999 (shared library 2.1)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
@ -159,6 +159,7 @@ Files in this distribution:
makefile.std => Generic UNIX makefile
makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr
makefile.dec => DEC Alpha UNIX makefile
makefile.hux => HPUX (10.20 and 11.00) makefile
makefile.sgi => Silicon Graphics IRIX makefile
makefile.sun => Sun makefile
makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)

52
Y2KINFO Normal file
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@ -0,0 +1,52 @@
Y2K compliance in libpng:
=========================
January 13, 1999
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.81 and
upward are Y2K compliant. It is my belief that earlier versions were
also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer
that will hold years up to 65535. The other two hold the date in text
format, and will hold years up to 9999.
The integer is
"png_uint_16 year" in png_time_struct.
The strings are
"png_charp time_buffer" in png_struct and
"near_time_buffer", which is a local character string in png.c.
There are seven time-related functions:
png_convert_to_rfc_1123() in png.c
(formerly png_convert_to_rfc_1152() in error)
png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
png_convert_from_time_t() in pngwrite.c
png_get_tIME() in pngget.c
png_handle_tIME() in pngrutil.c, called in pngread.c
png_set_tIME() in pngset.c
png_write_tIME() in pngwutil.c, called in pngwrite.c
All appear to handle dates properly in a Y2K environment. The
png_convert_from_time_t() function calls gmtime() to convert from system
clock time, which returns (year - 1900), which we properly convert to
the full 4-digit year. There is a possibility that applications using
libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
function, or incorrectly passing only a 2-digit year instead of
"year - 1900" into the png_convert_from_struct_tm() function, but this
is not under our control. The libpng documentation has always stated
that it works with 4-digit years, and the APIs have been documented as
such.
The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
integer to hold the year, and can hold years as large as 65535.
Glenn Randers-Pehrson
libpng maintainer
PNG Development Group

64
libpng.3
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@ -1,6 +1,6 @@
.TH LIBPNG 3 "January 6, 1999"
.TH LIBPNG 3 "January 14, 1999"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2b - January 6, 1999
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.3 - January 14, 1999
.SH SYNOPSIS
#include <png.h>
@ -423,10 +423,10 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng
libpng version 1.0.2b - January 6, 1999
libpng version 1.0.3 - January 14, 1999
Updated and distributed by Glenn Randers-Pehrson
<randeg@alumni.rpi.edu>
Copyright (c) 1998, 1999, Glenn Randers-Pehrson
Copyright (c) 1998, 1999 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -2437,6 +2437,58 @@ png_set_error_fn(), which is essentially the same function, but with a
new name to force compilation errors with applications that try to use
the old method.
.SH VII. Y2K Compliance in libpng
January 13, 1999
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.81 and
upward are Y2K compliant. It is my belief that earlier versions were
also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that
will hold years up to 65535. The other two hold the date in text
format, and will hold years up to 9999.
The integer is
"png_uint_16 year" in png_time_struct.
The strings are
"png_charp time_buffer" in png_struct and
"near_time_buffer", which is a local character string in png.c.
There are seven time-related functions:
png_convert_to_rfc_1123() in png.c
(formerly png_convert_to_rfc_1152() in error)
png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
png_convert_from_time_t() in pngwrite.c
png_get_tIME() in pngget.c
png_handle_tIME() in pngrutil.c, called in pngread.c
png_set_tIME() in pngset.c
png_write_tIME() in pngwutil.c, called in pngwrite.c
All appear to handle dates properly in a Y2K environment. The
png_convert_from_time_t() function calls gmtime() to convert from system
clock time, which returns (year - 1900), which we properly convert to
the full 4-digit year. There is a possibility that applications using
libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
function, or incorrectly passing only a 2-digit year instead of
"year - 1900" into the png_convert_from_struct_tm() function, but this
is not under our control. The libpng documentation has always stated
that it works with 4-digit years, and the APIs have been documented as
such.
The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
integer to hold the year, and can hold years as large as 65535.
Glenn Randers-Pehrson
libpng maintainer
PNG Development Group
.SH NOTE
Note about libpng version numbers:
@ -2522,7 +2574,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.2b - January 6, 1999:
Libpng version 1.0.3 - January 14, 1999:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alumni.rpi.edu).
@ -2534,7 +2586,7 @@ Supported by the PNG development group
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
Copyright (c) 1996, 1997 Andreas Dilger
Copyright (c) 1998, 1999, Glenn Randers-Pehrson
Copyright (c) 1998, 1999 Glenn Randers-Pehrson
The PNG Reference Library (libpng) is supplied "AS IS". The Contributing
Authors and Group 42, Inc. disclaim all warranties, expressed or implied,

56
libpng.txt
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@ -1,9 +1,9 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.0.2b - January 6, 1999
libpng version 1.0.3 - January 14, 1999
Updated and distributed by Glenn Randers-Pehrson
<randeg@alumni.rpi.edu>
Copyright (c) 1998, 1999, Glenn Randers-Pehrson
Copyright (c) 1998, 1999 Glenn Randers-Pehrson
For conditions of distribution and use, see copyright
notice in png.h.
@ -2013,3 +2013,55 @@ to set the error callbacks AFTER png_read_init(), or to change them with
png_set_error_fn(), which is essentially the same function, but with a
new name to force compilation errors with applications that try to use
the old method.
VII. Y2K Compliance in libpng
January 13, 1999
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.81 and
upward are Y2K compliant. It is my belief that earlier versions were
also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that
will hold years up to 65535. The other two hold the date in text
format, and will hold years up to 9999.
The integer is
"png_uint_16 year" in png_time_struct.
The strings are
"png_charp time_buffer" in png_struct and
"near_time_buffer", which is a local character string in png.c.
There are seven time-related functions:
png_convert_to_rfc_1123() in png.c
(formerly png_convert_to_rfc_1152() in error)
png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
png_convert_from_time_t() in pngwrite.c
png_get_tIME() in pngget.c
png_handle_tIME() in pngrutil.c, called in pngread.c
png_set_tIME() in pngset.c
png_write_tIME() in pngwutil.c, called in pngwrite.c
All appear to handle dates properly in a Y2K environment. The
png_convert_from_time_t() function calls gmtime() to convert from system
clock time, which returns (year - 1900), which we properly convert to
the full 4-digit year. There is a possibility that applications using
libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
function, or incorrectly passing only a 2-digit year instead of
"year - 1900" into the png_convert_from_struct_tm() function, but this
is not under our control. The libpng documentation has always stated
that it works with 4-digit years, and the APIs have been documented as
such.
The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
integer to hold the year, and can hold years as large as 65535.
Glenn Randers-Pehrson
libpng maintainer
PNG Development Group

4
libpngpf.3
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@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "January 6, 1999"
.TH LIBPNGPF 3 "January 14, 1999"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2b - January 6, 1999
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.3 - January 14, 1999
(private functions)
.SH SYNOPSIS
#include <png.h>

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "January 6, 1999"
.TH PNG 5 "January 14, 1999"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

8
png.c
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@ -1,10 +1,10 @@
/* png.c - location for general purpose libpng functions
*
* libpng version 1.0.2b - January 6, 1999
* libpng version 1.0.3 - January 14, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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.
*/
char png_libpng_ver[12] = "1.0.2b";
char png_libpng_ver[12] = "1.0.3";
/* Place to hold the signature string for a PNG file. */
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)
/* silence compiler warning about unused png_ptr */ ;
return("\n libpng version 1.0.2b - January 6, 1999\n\
return("\n libpng version 1.0.3 - January 14, 1999\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1998, 1999, Glenn Randers-Pehrson\n");

63
png.h
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@ -1,13 +1,65 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.0.2b - January 6, 1999
* libpng version 1.0.3 - January 14, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*
* Y2K compliance in libpng:
* =========================
*
* January 13, 1999
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.81 and
* upward are Y2K compliant. It is my belief that earlier versions were
* also Y2K compliant.
*
* Libpng only has three year fields. One is a 2-byte unsigned integer
* that will hold years up to 65535. The other two hold the date in text
* format, and will hold years up to 9999.
*
* The integer is
* "png_uint_16 year" in png_time_struct.
*
* The strings are
* "png_charp time_buffer" in png_struct and
* "near_time_buffer", which is a local character string in png.c.
*
* There are seven time-related functions:
* png.c: png_convert_to_rfc_1123() in png.c
* (formerly png_convert_to_rfc_1152() in error)
* png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
* png_convert_from_time_t() in pngwrite.c
* png_get_tIME() in pngget.c
* png_handle_tIME() in pngrutil.c, called in pngread.c
* png_set_tIME() in pngset.c
* png_write_tIME() in pngwutil.c, called in pngwrite.c
*
* All handle dates properly in a Y2K environment. The
* png_convert_from_time_t() function calls gmtime() to convert from system
* clock time, which returns (year - 1900), which we properly convert to
* the full 4-digit year. There is a possibility that applications using
* libpng are not passing 4-digit years into the png_convert_to_rfc_1123()
* function, or incorrectly passing only a 2-digit year instead of
* "year - 1900" into the png_convert_from_struct_tm() function, but this
* is not under our control. The libpng documentation has always stated
* that it works with 4-digit years, and the APIs have been documented as
* such.
*
* The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned
* integer to hold the year, and can hold years as large as 65535.
*
*
* Glenn Randers-Pehrson
* libpng maintainer
* PNG Development Group
*
* Note about libpng version numbers:
*
*
* Due to various miscommunications, unforeseen code incompatibilities
* and occasional factors outside the authors' control, version numbering
* on the library has not always been consistent and straightforward.
@ -31,7 +83,7 @@
* 1.0.1 1.0.1 10001 2.1.0
* 1.0.1a-e 1.0.1a-e 10002 2.1.0.1a-e
* 1.0.2 1.0.2 10002 2.1.0.2
* 1.0.2a 1.0.2a 10003 2.1.0.2a
* 1.0.2a-c 1.0.2a 10003 2.1.0.2a-c
* 1.0.3 1.0.3 10003 2.1.0.3
*
* Henceforth the source version will match the shared-library minor
@ -93,6 +145,7 @@
* appreciated.
*/
#ifndef _PNG_H
#define _PNG_H
@ -119,7 +172,7 @@ extern "C" {
*/
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.2b"
#define PNG_LIBPNG_VER_STRING "1.0.3"
/* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros.
@ -1499,7 +1552,7 @@ png_get_header_version(png_structp png_ptr)
{
if(png_ptr == NULL)
/* silence compiler warning about unused png_ptr */ ;
return("\n libpng version 1.0.2b - January 6, 1999 (header)\n");
return("\n libpng version 1.0.3 - January 14, 1999 (header)\n");
}
#endif

4
pngconf.h
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@ -1,11 +1,11 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, 1999, Glenn Randers-Pehrson
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/
/* Any machine specific code is near the front of this file, so if you

2
pngerror.c
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@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger

2
pngmem.c
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@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger

6
pngread.c
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@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
@ -530,7 +530,7 @@ 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
* be ignored, so pass NULL to it.
*
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2b.
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.3.
*/
void
@ -579,7 +579,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead.
*
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2b.
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.3.
*/
void
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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger

2
pngtest.c
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@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng
*
* libpng 1.0.2b -January 6, 1999
* libpng 1.0.3 -January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger

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)
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger

2
pngwio.c
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@ -1,7 +1,7 @@
/* pngwio.c - functions for data output
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* 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
*
* libpng 1.0.2b - January 6, 1999
* libpng 1.0.3 - January 14, 1999
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger

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
# have to change it.
PNGMAJ = 2
PNGMIN = 1.0.2b
PNGMIN = 1.0.3
PNGVER = $(PNGMAJ).$(PNGMIN)
CC=cc

68
scripts/makefile.hux Normal file
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@ -0,0 +1,68 @@
===========================================================================
# makefile for libpng, HPUX (10.20 and 11.00)
# Copyright (C) 1995 Guy Eric Schalnat, Group 42
# Copyright (C) 1999 Glenn Randers-Pehrson
# contributed by Jim Rice, Hewlett Packard
# For conditions of distribution and use, see copyright notice in png.h
# Where the zlib library and include files are located
ZLIBLIB=/opt/zlib/lib
ZLIBINC=/opt/zlib/include
CC=cc
CFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
CCFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
RANLIB=ranlib
# where make install puts libpng.a and png.h
prefix=/opt/libpng/
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
all: libpng.a pngtest
libpng.a: $(OBJS)
ar rc $@ $(OBJS)
$(RANLIB) $@
pngtest: pngtest.o libpng.a
$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
test: pngtest
./pngtest
install: libpng.a
-@mkdir $(prefix)/include
-@mkdir $(prefix)/lib
cp png.h $(prefix)/include
cp pngconf.h $(prefix)/include
chmod 644 $(prefix)/include/png.h
chmod 644 $(prefix)/include/pngconf.h
cp libpng.a $(prefix)/lib
chmod 644 $(prefix)/lib/libpng.a
clean:
rm -f *.o libpng.a pngtest pngout.png
# DO NOT DELETE THIS LINE -- make depend depends on it.
png.o: png.h pngconf.h
pngerror.o: png.h pngconf.h
pngrio.o: png.h pngconf.h
pngwio.o: png.h pngconf.h
pngmem.o: png.h pngconf.h
pngset.o: png.h pngconf.h
pngget.o: png.h pngconf.h
pngread.o: png.h pngconf.h
pngrtran.o: png.h pngconf.h
pngrutil.o: png.h pngconf.h
pngtest.o: png.h pngconf.h
pngtrans.o: png.h pngconf.h
pngwrite.o: png.h pngconf.h
pngwtran.o: png.h pngconf.h
pngwutil.o: png.h pngconf.h
pngpread.o: png.h pngconf.h

2
scripts/makefile.lnx
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@ -32,7 +32,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it.
PNGMAJ = 2
PNGMIN = 1.0.2b
PNGMIN = 1.0.3
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include

2
scripts/makefile.s2x
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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
# have to change it.
PNGMAJ = 2
PNGMIN = 1.0.2b
PNGMIN = 1.0.3
PNGVER = $(PNGMAJ).$(PNGMIN)
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
# have to change it.
PNGMAJ = 2
PNGMIN = 1.0.2b
PNGMIN = 1.0.3
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include

2
scripts/pngdef.pas
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@ -3,7 +3,7 @@ unit pngdef;
interface
const
PNG_LIBPNG_VER_STRING = '1.0.2b';
PNG_LIBPNG_VER_STRING = '1.0.3';
PNG_LIBPNG_VER = 10001;
type