[alpha] Imported from libpng-1.4.1alpha02.tar

This commit is contained in:
Glenn Randers-Pehrson
2009-12-11 08:12:49 -06:00
parent 770ce80777
commit d128f38f5a
27 changed files with 60 additions and 58 deletions

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@@ -1,5 +1,5 @@
Installing libpng version 1.4.1alpha02 - November 27, 2009
Installing libpng version 1.4.1alpha02 - December 11, 2009
On Unix/Linux and similar systems, you can simply type

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@@ -10,7 +10,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.4.1alpha02, November 27, 2009, are
libpng versions 1.2.6, August 15, 2004, through 1.4.1alpha02, December 11, 2009, are
Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
November 27, 2009
December 11, 2009

2
README
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@@ -1,4 +1,4 @@
README for libpng version 1.4.1alpha02 - November 27, 2009 (shared library 14.0)
README for libpng version 1.4.1alpha02 - December 11, 2009 (shared library 14.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.

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@@ -2,7 +2,7 @@
#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* This file has been placed in the public domain by the authors.
* Maintained 1998-2009 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)

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@@ -1,6 +1,6 @@
libpng.txt - A description on how to use and modify libpng
libpng version 1.4.1alpha02 - November 28, 2009
libpng version 1.4.1alpha02 - December 11, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.4.1alpha02 - November 28, 2009
libpng versions 0.97, January 1998, through 1.4.1alpha02 - December 11, 2009
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -938,20 +938,21 @@ images) is fully transparent, with
png_set_invert_alpha(png_ptr);
The PNG format only supports pixels with postmultiplied alpha.
The PNG format only supports pixels with non-premultiplied alpha.
If you want to replace the pixels, after reading them, with pixels
that have premultiplied color samples, you can do this with
png_set_premultiply_alpha(png_ptr, output_gamma);
png_set_premultiply_alpha(png_ptr, postmultiply_gamma);
where gamma is a double containing the gamma associated with the
premultiplied pixels. The gamma of the input must also be available
when the premultiplication takes place, via a gAMA chunk in the
input file or via png_set_gAMA(). If neither is present, the
premultiplication will assume input_gamma==(1/2.2)
where postmultiply_gamma is a double containing the gamma associated
with the pixels after they have been premultiplied. The gamma of
the input must also be available when the premultiplication takes
place, via a gAMA chunk in the input file or via png_set_gAMA(). If
neither is present, the premultiplication will assume
input_gamma==(1/2.2)
If you do this, any input with a tRNS chunk will be expanded to
have an alpha channel.
have an alpha channel, and all samples will be expanded to 16 bits.
PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
they can, resulting in, for example, 8 pixels per byte for 1 bit
@@ -3231,7 +3232,7 @@ Other rules can be inferred by inspecting the libpng source.
XIII. Y2K Compliance in libpng
November 28, 2009
December 11, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.

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@@ -1,4 +1,4 @@
.TH LIBPNG 3 "November 28, 2009"
.TH LIBPNG 3 "December 11, 2009"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.1alpha02
.SH SYNOPSIS
@@ -781,7 +781,7 @@ 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 1.4.1alpha02 - November 28, 2009
libpng version 1.4.1alpha02 - December 11, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -792,7 +792,7 @@ libpng.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.4.1alpha02 - November 28, 2009
libpng versions 0.97, January 1998, through 1.4.1alpha02 - December 11, 2009
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -1719,20 +1719,21 @@ images) is fully transparent, with
png_set_invert_alpha(png_ptr);
The PNG format only supports pixels with postmultiplied alpha.
The PNG format only supports pixels with non-premultiplied alpha.
If you want to replace the pixels, after reading them, with pixels
that have premultiplied color samples, you can do this with
png_set_premultiply_alpha(png_ptr, output_gamma);
png_set_premultiply_alpha(png_ptr, postmultiply_gamma);
where gamma is a double containing the gamma associated with the
premultiplied pixels. The gamma of the input must also be available
when the premultiplication takes place, via a gAMA chunk in the
input file or via png_set_gAMA(). If neither is present, the
premultiplication will assume input_gamma==(1/2.2)
where postmultiply_gamma is a double containing the gamma associated
with the pixels after they have been premultiplied. The gamma of
the input must also be available when the premultiplication takes
place, via a gAMA chunk in the input file or via png_set_gAMA(). If
neither is present, the premultiplication will assume
input_gamma==(1/2.2)
If you do this, any input with a tRNS chunk will be expanded to
have an alpha channel.
have an alpha channel, and all samples will be expanded to 16 bits.
PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
they can, resulting in, for example, 8 pixels per byte for 1 bit
@@ -4012,7 +4013,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIII. Y2K Compliance in libpng
November 28, 2009
December 11, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
@@ -4188,7 +4189,7 @@ the first widely used release:
1.4.0beta15-36 14 10400 14.so.0.0[.0]
1.4.0beta37-87 14 10400 14.so.14.0[.0]
1.4.0rc01 14 10400 14.so.14.0[.0]
1.4.0beta88-107 14 10400 14.so.14.0[.0]
1.4.0beta88-108 14 10400 14.so.14.0[.0]
1.4.1alpha01-02 14 10401 14.so.14.0[.0]
Henceforth the source version will match the shared-library minor
@@ -4245,7 +4246,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.4.1alpha02 - November 28, 2009:
Libpng version 1.4.1alpha02 - December 11, 2009:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -4268,7 +4269,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.4.1alpha02, November 28, 2009, are
libpng versions 1.2.6, August 15, 2004, through 1.4.1alpha02, December 11, 2009, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -4367,7 +4368,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
November 28, 2009
December 11, 2009
.\" end of man page

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@@ -1,4 +1,4 @@
.TH LIBPNGPF 3 "November 28, 2009"
.TH LIBPNGPF 3 "December 11, 2009"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.1alpha02
(private functions)

2
png.5
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@@ -1,4 +1,4 @@
.TH PNG 5 "November 27, 2009"
.TH PNG 5 "December 11, 2009"
.SH NAME
png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION

6
png.c
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@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -548,13 +548,13 @@ png_get_copyright(png_structp png_ptr)
#else
#ifdef __STDC__
return ((png_charp) PNG_STRING_NEWLINE \
"libpng version 1.4.1alpha02 - December 4, 2009" PNG_STRING_NEWLINE \
"libpng version 1.4.1alpha02 - December 11, 2009" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2009 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE);
#else
return ((png_charp) "libpng version 1.4.1alpha02 - December 4, 2009\
return ((png_charp) "libpng version 1.4.1alpha02 - December 11, 2009\
Copyright (c) 1998-2009 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");

8
png.h
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@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
* libpng version 1.4.1alpha02 - December 4, 2009
* libpng version 1.4.1alpha02 - December 11, 2009
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -11,7 +11,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
* libpng versions 0.97, January 1998, through 1.4.1alpha02 - December 4, 2009: Glenn
* libpng versions 0.97, January 1998, through 1.4.1alpha02 - December 11, 2009: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -164,7 +164,7 @@
*
* This code is released under the libpng license.
*
* libpng versions 1.2.6, August 15, 2004, through 1.4.1alpha02, December 4, 2009, are
* libpng versions 1.2.6, August 15, 2004, through 1.4.1alpha02, December 11, 2009, are
* Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@@ -340,7 +340,7 @@
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.4.1alpha02"
#define PNG_HEADER_VERSION_STRING \
" libpng version 1.4.1alpha02 - December 4, 2009\n"
" libpng version 1.4.1alpha02 - December 11, 2009\n"
#define PNG_LIBPNG_VER_SONUM 14
#define PNG_LIBPNG_VER_DLLNUM 14

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@@ -1,7 +1,7 @@
/* pngconf.h - machine configurable file for libpng
*
* libpng version 1.4.1alpha02 - December 4, 2009
* libpng version 1.4.1alpha02 - December 11, 2009
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

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@@ -1,7 +1,7 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngget.c - retrieval of values from info struct
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngmem.c - stub functions for memory allocation
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng
*
* libpng version 1.4.1alpha02 - December 4, 2009
* libpng version 1.4.1alpha02 - December 11, 2009
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

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@@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngrio.c - functions for data input
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngtest.c - a simple test program to test libpng
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngwio.c - functions for data output
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngwtran.c - transforms the data in a row for PNG writers
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.4.0 [December 4, 2009]
* Last changed in libpng 1.4.0 [December 11, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

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@@ -1,5 +1,5 @@
Makefiles for libpng version 1.4.1alpha02 - December 4, 2009
Makefiles for libpng version 1.4.1alpha02 - December 11, 2009
makefile.linux => Linux/ELF makefile
(gcc, creates libpng14.so.14.1.4.1alpha02)