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[libpng15] Reverted previous change; removed png_get_compression_buffer() API.

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It is too risky. Exactly how png_ptr->zbuf is used is under control of the
individual chunk implementation and there could easily be significant changes
within a major release.
This commit is contained in:
Glenn Randers-Pehrson
2011-10-13 20:30:02 -05:00
parent d3dcb463d6
commit d58251b47e
9 changed files with 19 additions and 60 deletions
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libpng.3
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@@ -1,4 +1,4 @@
.TH LIBPNG 3 "October 13, 2011"
.TH LIBPNG 3 "October 14, 2011"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.6beta06
.SH SYNOPSIS
@@ -154,10 +154,6 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.5.6beta06
\fI\fB
\fBpng_bytep png_get_compression_buffer (png_const_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
\fBpng_uint_32 png_get_compression_buffer_size (png_const_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
@@ -981,7 +977,7 @@ 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 1.5.6beta06 - October 13, 2011
libpng version 1.5.6beta06 - October 14, 2011
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -992,7 +988,7 @@ libpng-manual.txt - A description on how to use and modify libpng
Based on:
libpng versions 0.97, January 1998, through 1.5.6beta06 - October 13, 2011
libpng versions 0.97, January 1998, through 1.5.6beta06 - October 14, 2011
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -4674,13 +4670,6 @@ compressed chunks such as zTXt, iTXt, and iCCP:
png_set_text_compression_method(png_ptr, method);
#endif
As of libpng version 1.5.6, an API became available for
retrieving a pointer to the compression buffer:
#if PNG_GET_COMPRESSION_BUFFER_SUPPORTED
png_bytep buffer = png_get_compression_buffer(png_ptr);
#endif
.SS Controlling row filtering
If you want to control whether libpng uses filtering or not, which
@@ -5552,7 +5541,7 @@ Other rules can be inferred by inspecting the libpng source.
.SH XIV. Y2K Compliance in libpng
October 13, 2011
October 14, 2011
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
@@ -5814,7 +5803,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.5.6beta06 - October 13, 2011:
Libpng version 1.5.6beta06 - October 14, 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).
@@ -5837,7 +5826,7 @@ this sentence.
This code is released under the libpng license.
libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 13, 2011, are
libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 14, 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
@@ -5936,7 +5925,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
October 13, 2011
October 14, 2011
.\" end of man page