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Libpng 1.2.38beta01 - June 17, 2009
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.
Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
libpng-1.2.38beta01.tar.gz
libpng-1.2.38beta01.tar.lzma
(Get the lzma codec from <http://tukaani.org/lzma>).
libpng-1.2.38beta01.tar.bz2
Source files with LF line endings (for Unix/Linux) without the
"configure" script
libpng-1.2.38beta01-no-config.tar.gz
libpng-1.2.38beta01-no-config.tar.lzma
libpng-1.2.38beta01-no-config.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lp1238b01.zip
lp1238b01.7z
lp1238b01.tar.bz2
Project files
libpng-1.2.38beta01-project-netware.zip
libpng-1.2.38beta01-project-wince.zip
Other information:
libpng-1.2.38beta01-README.txt
libpng-1.2.38beta01-KNOWNBUGS.txt
libpng-1.2.38beta01-LICENSE.txt
libpng-1.2.38beta01-Y2K-compliance.txt
libpng-1.2.38beta01-[previous version]-diff.txt
Changes since the last public release (1.2.36):
version 1.2.37beta01 [May 14, 2009]
Fixed inconsistency in pngrutil.c, introduced in libpng-1.2.36. The
memset() was using "png_ptr->rowbytes" instead of "row_bytes", which
the corresponding png_malloc() uses (Joe Drew).
Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
Updated some of the makefiles in the scripts directory (merged with
those in libpng-1.4.0beta57).
version 1.2.37beta02 [May 19, 2009]
Fixed typo in libpng documentation (FILTER_AVE should be FILTER_AVG)
Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
Conditionally compile png_read_finish_row() which is not used by
progressive readers.
Added contrib/pngminim/preader to demonstrate building minimal progressive
decoder, based on contrib/gregbook with embedded libpng and zlib.
version 1.2.37beta03 [May 20, 2009]
In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
is only one makefile in those directories, and revised the README files
accordingly.
Reformated sources in libpng style (3-space indentation, comment format)
version 1.2.37rc01 [May 27, 2009]
No changes.
versions 1.2.37 and 1.0.45 [June 4, 2009]
Reformatted several remaining "else statement;" and "if () statement;" into
two lines.
Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
Added sections about the git repository and our coding style to the
documentation (merged from libpng-1.4.0beta62)
Added a section in the documentation about using png_get_io_ptr() in
configure scripts to detect the presence of libpng.
version 1.2.38beta01 [June 17, 2009]
Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
multiple times and to specify the sample order in the tRNS chunk,
because the ISO PNG specification has a typo in the tRNS table.
Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
available for ignoring known chunks even when not saving unknown chunks.
Added PNG_NO_HANDLE_AS_UNKNOWN in the PNG_LEGACY_SUPPORTED block of
pngconf.h, and moved the various unknown chunk macro definitions
outside of the PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
to subscribe) or to glennrp at users.sourceforge.net
Glenn R-P
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