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[devel] Imported from libpng-1.5.1beta09.tar

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Glenn Randers-Pehrson
2011-01-24 00:12:14 -06:00
parent b0b058b767
commit 9962b84659
11 changed files with 29 additions and 33 deletions
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libpng.3
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@@ -1,4 +1,4 @@
.TH LIBPNG 3 "January 23, 2011"
.TH LIBPNG 3 "January 24, 2011"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.1beta09
.SH SYNOPSIS
@@ -919,7 +919,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
.SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.5.1beta09 - January 23, 2011
libpng version 1.5.1beta09 - January 24, 2011
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -930,7 +930,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.5.1beta09 - January 23, 2011
libpng versions 0.97, January 1998, through 1.5.1beta09 - January 24, 2011
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -2260,16 +2260,12 @@ Copyright (c) 1998-01-04 Charles Poynton <poynton at inforamp.net>
Y = 0.212671 * R + 0.715160 * G + 0.072169 * B
Libpng approximates this with
Libpng approximates this with integers scaled by 32768:
Y = 0.21268 * R + 0.7151 * G + 0.07217 * B
which can be expressed with integers as
Y = (6969 * R + 23434 * G + 2365 * B)/32768
Y = (6968 * R + 23434 * G + 2366 * B)/32768
The calculation is done in a linear colorspace, if the image gamma
is known.
can be determined.
If you have a grayscale and you are using png_set_expand_depth(),
png_set_expand(), or png_set_gray_to_rgb to change to truecolor or to
@@ -4996,7 +4992,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIV. Y2K Compliance in libpng
January 23, 2011
January 24, 2011
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
@@ -5242,7 +5238,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.5.1beta09 - January 23, 2011:
Libpng version 1.5.1beta09 - January 24, 2011:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -5265,7 +5261,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.5.1beta09, January 23, 2011, are
libpng versions 1.2.6, August 15, 2004, through 1.5.1beta09, January 24, 2011, 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
@@ -5364,7 +5360,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
January 23, 2011
January 24, 2011
.\" end of man page