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[libpng16] Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk

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handling.
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Glenn Randers-Pehrson 2013-03-31 22:55:55 -05:00
parent 3a83aa328d
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4 changed files with 25 additions and 15 deletions
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5
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.6.2beta01 - March 29, 2013 Libpng 1.6.2beta01 - April 1, 2013
This is not intended to be a public release. It will be replaced 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. within a few weeks by a public version or by another test version.
@ -25,7 +25,8 @@ Other information:
Changes since the last public release (1.6.1): Changes since the last public release (1.6.1):
Version 1.6.2beta01 [March 29, 2013] Version 1.6.2beta01 [April 1, 2013]
Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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3
CHANGES
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@ -4473,7 +4473,8 @@ Version 1.6.1rc01 [March 21, 2013]
Version 1.6.1 [March 28, 2013] Version 1.6.1 [March 28, 2013]
No changes. No changes.
Version 1.6.2beta01 [March 29, 2013] Version 1.6.2beta01 [April 1, 2013]
Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

12
libpng-manual.txt
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@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.6.2beta01 - March 29, 2013 libpng version 1.6.2beta01 - April 1, 2013
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2013 Glenn Randers-Pehrson Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.6.2beta01 - March 29, 2013 libpng versions 0.97, January 1998, through 1.6.2beta01 - April 1, 2013
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2013 Glenn Randers-Pehrson Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -4978,7 +4978,11 @@ where "rp" indicates a "restricted pointer".
Error detection in some chunks has improved; in particular the iCCP chunk Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now rejected, in particular the profiles that were previously accepted are now rejected, in particular the
very old broken Microsoft/HP sRGB profile. very old broken Microsoft/HP sRGB profile. The PNG spec requirement that
only grayscale profiles may appear in images with color type 0 or 4 and that
even if the image only contains gray pixels, only RGB profiles may appear
in images with color type 2, 3, or 6, is now enforced. The sRGB chunk
is allowed to appear in images with any color type.
The library now issues an error if the application attempts to set a The library now issues an error if the application attempts to set a
transform after it calls png_read_update_info(). transform after it calls png_read_update_info().
@ -5161,7 +5165,7 @@ Other rules can be inferred by inspecting the libpng source.
XVI. Y2K Compliance in libpng XVI. Y2K Compliance in libpng
March 29, 2013 April 1, 2013
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.

20
libpng.3
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@ -1,4 +1,4 @@
.TH LIBPNG 3 "March 29, 2013" .TH LIBPNG 3 "April 1, 2013"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.6.2beta01 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.2beta01
.SH SYNOPSIS .SH SYNOPSIS
@ -504,7 +504,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng libpng-manual.txt - A description on how to use and modify libpng
libpng version 1.6.2beta01 - March 29, 2013 libpng version 1.6.2beta01 - April 1, 2013
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net> <glennrp at users.sourceforge.net>
Copyright (c) 1998-2013 Glenn Randers-Pehrson Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -515,7 +515,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.6.2beta01 - March 29, 2013 libpng versions 0.97, January 1998, through 1.6.2beta01 - April 1, 2013
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2013 Glenn Randers-Pehrson Copyright (c) 1998-2013 Glenn Randers-Pehrson
@ -5483,7 +5483,11 @@ where "rp" indicates a "restricted pointer".
Error detection in some chunks has improved; in particular the iCCP chunk Error detection in some chunks has improved; in particular the iCCP chunk
reader now does pretty complete validation of the basic format. Some bad reader now does pretty complete validation of the basic format. Some bad
profiles that were previously accepted are now rejected, in particular the profiles that were previously accepted are now rejected, in particular the
very old broken Microsoft/HP sRGB profile. very old broken Microsoft/HP sRGB profile. The PNG spec requirement that
only grayscale profiles may appear in images with color type 0 or 4 and that
even if the image only contains gray pixels, only RGB profiles may appear
in images with color type 2, 3, or 6, is now enforced. The sRGB chunk
is allowed to appear in images with any color type.
The library now issues an error if the application attempts to set a The library now issues an error if the application attempts to set a
transform after it calls png_read_update_info(). transform after it calls png_read_update_info().
@ -5666,7 +5670,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XVI. Y2K Compliance in libpng .SH XVI. Y2K Compliance in libpng
March 29, 2013 April 1, 2013
Since the PNG Development group is an ad-hoc body, we can't make Since the PNG Development group is an ad-hoc body, we can't make
an official declaration. an official declaration.
@ -5940,7 +5944,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.6.2beta01 - March 29, 2013: Libpng version 1.6.2beta01 - April 1, 2013:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@ -5963,7 +5967,7 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.6.2beta01, March 29, 2013, are libpng versions 1.2.6, August 15, 2004, through 1.6.2beta01, April 1, 2013, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5 distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors with the following individual added to the list of Contributing Authors
@ -6062,7 +6066,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
March 29, 2013 April 1, 2013
.\" end of man page .\" end of man page