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Imported from libpng-1.2.8beta1.tar

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Glenn Randers-Pehrson
2004-11-01 14:13:40 -06:00
parent 250dfe1777
commit 16e11660fe
70 changed files with 194 additions and 25456 deletions
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libpng.3
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@@ -1,6 +1,6 @@
.TH LIBPNG 3 "September 12, 2004"
.TH LIBPNG 3 "November 1, 2004"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.7
libpng \- Portable Network Graphics (PNG) Reference Library 1.2.8beta1
.SH SYNOPSIS
\fI\fB
@@ -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 1.2.7 - September 12, 2004
libpng version 1.2.8beta1 - November 1, 2004
Updated and distributed by Glenn Randers-Pehrson
<glennrp@users.sourceforge.net>
Copyright (c) 1998-2004 Glenn Randers-Pehrson
@@ -1552,9 +1552,10 @@ in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha()
is called to insert filler bytes, either before or after each RGB triplet.
16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant
byte of the color value first, unless png_set_strip_16() is called to
transform it to regular RGB RGB triplets, or png_set_filler|add alpha()
is called to insert filler bytes, either before or after each RRGGBB
triplet. Similarly, 8-bit or 16-bit grayscale data can be modified with
transform it to regular RGB RGB triplets, or png_set_filler() or
png_set_add alpha() is called to insert filler bytes, either before or
after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can
be modified with
png_set_filler(), png_set_add_alpha(), or png_set_strip_16().
The following code transforms grayscale images of less than 8 to 8 bits,
@@ -1648,7 +1649,7 @@ to do that, you can add a true alpha channel with
png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER);
where "filler" contains the alpha value to assign to each pixel.
This function became available in libpng-1.2.7.
This function was added in libpng-1.2.7.
If you are reading an image with an alpha channel, and you need the
data as ARGB instead of the normal PNG format RGBA:
@@ -3684,13 +3685,13 @@ application:
.SH IX. Y2K Compliance in libpng
September 12, 2004
November 1, 2004
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 1.2.7 are Y2K compliant. It is my belief that earlier
upward through 1.2.8beta1 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
@@ -3893,7 +3894,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.2.7 - September 12, 2004:
Libpng version 1.2.8beta1 - November 1, 2004:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp@users.sourceforge.net).
@@ -3911,7 +3912,7 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following
this sentence.
libpng version 1.2.6, September 12, 2004, is
libpng version 1.2.6, November 1, 2004, is
Copyright (c) 2004 Glenn Randers-Pehrson, and is
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -4010,7 +4011,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp@users.sourceforge.net
September 12, 2004
November 1, 2004
.\" end of man page