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Imported from libpng-1.4.0beta30.tar

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Glenn Randers-Pehrson
2008-08-14 13:44:49 -05:00
parent e0784c72f4
commit 1916f6ae42
63 changed files with 279 additions and 146 deletions
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libpng.3
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@@ -1,6 +1,6 @@
.TH LIBPNG 3 "August 9, 2008"
.TH LIBPNG 3 "August 14, 2008"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta29
libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta30
.SH SYNOPSIS
\fI\fB
@@ -582,6 +582,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta29
\fI\fB
\fBvoid png_set_premultiply_alpha (png_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBvoid png_set_progressive_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIprogressive_ptr\fP\fB, png_progressive_info_ptr \fP\fIinfo_fn\fP\fB, png_progressive_row_ptr \fP\fIrow_fn\fP\fB, png_progressive_end_ptr \fIend_fn\fP\fB);\fP
\fI\fB
@@ -797,7 +801,7 @@ 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 1.4.0beta29 - August 9, 2008
libpng version 1.4.0beta30 - August 14, 2008
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2005 Glenn Randers-Pehrson
@@ -1622,6 +1626,12 @@ images) is fully transparent, with
png_set_invert_alpha(png_ptr);
The PNG format only supports pixels with postmultiplied 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);
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
files. This code expands to 1 pixel per byte without changing the
@@ -3716,13 +3726,13 @@ application:
.SH IX. Y2K Compliance in libpng
August 9, 2008
August 14, 2008
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 0.71 and
upward through 1.4.0beta29 are Y2K compliant. It is my belief that earlier
upward through 1.4.0beta30 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
@@ -3945,7 +3955,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.4.0beta29 - August 9, 2008:
Libpng version 1.4.0beta30 - August 14, 2008:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -3966,7 +3976,7 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng versions 1.2.6, August 15, 2004, through 1.4.0beta29, August 9, 2008, are
libpng versions 1.2.6, August 15, 2004, through 1.4.0beta30, August 14, 2008, 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
@@ -4065,7 +4075,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
August 9, 2008
August 14, 2008
.\" end of man page