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[libpng15] Update manual about handling over-length PLTE chunks.

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Glenn Randers-Pehrson 2015-10-31 08:47:32 -05:00
parent 820a090567
commit 91a73053b9
4 changed files with 19 additions and 19 deletions
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4
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.5.24beta03 - October 30, 2015 Libpng 1.5.24beta03 - October 31, 2015
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.
@ -52,7 +52,7 @@ Version 1.5.24beta02 [October 15, 2015]
Merged pngvalid.c with version 1.6.19. Merged pngvalid.c with version 1.6.19.
Added sPLT support to pngtest.c Added sPLT support to pngtest.c
Version 1.5.24beta03 [October 30, 2015] Version 1.5.24beta03 [October 31, 2015]
Prevent writing over-length PLTE chunk (Cosmin Truta). Prevent writing over-length PLTE chunk (Cosmin Truta).
Libpng incorrectly calculated the output rowbytes when the application Libpng incorrectly calculated the output rowbytes when the application
decreased either the number of channels or the bit depth (or both) in decreased either the number of channels or the bit depth (or both) in

2
CHANGES
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@ -4399,7 +4399,7 @@ Version 1.5.24beta02 [October 15, 2015]
Merged pngvalid.c with version 1.6.19. Merged pngvalid.c with version 1.6.19.
Added sPLT support to pngtest.c Added sPLT support to pngtest.c
Version 1.5.24beta03 [October 30, 2015] Version 1.5.24beta03 [October 31, 2015]
Prevent writing over-length PLTE chunk (Cosmin Truta). Prevent writing over-length PLTE chunk (Cosmin Truta).
Libpng incorrectly calculated the output rowbytes when the application Libpng incorrectly calculated the output rowbytes when the application
decreased either the number of channels or the bit depth (or both) in decreased either the number of channels or the bit depth (or both) in

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 1.5.24beta03 - October 29, 2015 libpng version 1.5.24beta03 - October 31, 2015
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) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 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 1.5.24beta03 - October 29, 2015 libpng versions 0.97, January 1998, through 1.5.24beta03 - October 31, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -4256,10 +4256,10 @@ limits are now
The png_set_option() function (and the "options" member of the png struct) was The png_set_option() function (and the "options" member of the png struct) was
added to libpng-1.5.15. added to libpng-1.5.15.
Starting with libpng-1.5.24, attempting to write an over-length PLTE chunk Starting with libpng-1.5.24, attempting to set an over-length PLTE chunk
is an error. Previously this requirement of the PNG specification was not is an error. Previously this requirement of the PNG specification was not
enforced. Libpng continues to accept over-length PLTE chunks when reading, enforced, and the palette was always limited to 256 entries. An over-length
but does not make any use of the extra entries. PLTE chunk found in an input PNG is silently truncated.
The library now supports a complete fixed point implementation and can The library now supports a complete fixed point implementation and can
thus be used on systems that have no floating point support or very thus be used on systems that have no floating point support or very
@ -4506,7 +4506,7 @@ Other rules can be inferred by inspecting the libpng source.
XIV. Y2K Compliance in libpng XIV. Y2K Compliance in libpng
October 29, 2015 October 31, 2015
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 "October 29, 2015" .TH LIBPNG 3 "October 31, 2015"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.24beta03 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.24beta03
.SH SYNOPSIS .SH SYNOPSIS
@ -496,7 +496,7 @@ 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 1.5.24beta03 - October 29, 2015 libpng version 1.5.24beta03 - October 31, 2015
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) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -507,7 +507,7 @@ Libpng-manual.txt - A description on how to use and modify libpng
Based on: Based on:
libpng versions 0.97, January 1998, through 1.5.24beta03 - October 29, 2015 libpng versions 0.97, January 1998, through 1.5.24beta03 - October 31, 2015
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2014 Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson
@ -4752,10 +4752,10 @@ limits are now
The png_set_option() function (and the "options" member of the png struct) was The png_set_option() function (and the "options" member of the png struct) was
added to libpng-1.5.15. added to libpng-1.5.15.
Starting with libpng-1.5.24, attempting to write an over-length PLTE chunk Starting with libpng-1.5.24, attempting to set an over-length PLTE chunk
is an error. Previously this requirement of the PNG specification was not is an error. Previously this requirement of the PNG specification was not
enforced. Libpng continues to accept over-length PLTE chunks when reading, enforced, and the palette was always limited to 256 entries. An over-length
but does not make any use of the extra entries. PLTE chunk found in an input PNG is silently truncated.
The library now supports a complete fixed point implementation and can The library now supports a complete fixed point implementation and can
thus be used on systems that have no floating point support or very thus be used on systems that have no floating point support or very
@ -5002,7 +5002,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIV. Y2K Compliance in libpng .SH XIV. Y2K Compliance in libpng
October 29, 2015 October 31, 2015
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.
@ -5315,7 +5315,7 @@ 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 1.5.24beta03 - October 29, 2015: Libpng version 1.5.24beta03 - October 31, 2015:
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).
@ -5338,7 +5338,7 @@ this sentence.
This code is released under the libpng license. This code is released under the libpng license.
libpng versions 1.0.7, July 1, 2000, through 1.5.24beta03, October 29, 2015, are libpng versions 1.0.7, July 1, 2000, through 1.5.24beta03, October 31, 2015, are
Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, and are Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.0.6 distributed according to the same disclaimer and license as libpng-1.0.6
with the following individuals added to the list of Contributing Authors: with the following individuals added to the list of Contributing Authors:
@ -5431,7 +5431,7 @@ the additional disclaimers inserted at version 1.0.7.
Glenn Randers-Pehrson Glenn Randers-Pehrson
glennrp at users.sourceforge.net glennrp at users.sourceforge.net
October 29, 2015 October 31, 2015
.\" end of man page .\" end of man page