libpng/ANNOUNCE
Glenn Randers-Pehrson 1099cdcb5a [libpng16] Removed dubious "#if INT_MAX" test from png.h that was added to
libpng-1.6.19bet02 (John Bowler).
2016-02-13 15:02:16 -06:00

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Libpng 1.6.22beta03 - February 13, 2016
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
1.6.22beta03.tar.xz (LZMA-compressed, recommended)
1.6.22beta03.tar.gz
Source files with CRLF line endings (for Windows), without the
"configure" script
lp1622b03.7z (LZMA-compressed, recommended)
lp1622b03.zip
Other information:
1.6.22beta03-README.txt
1.6.22beta03-LICENSE.txt
libpng-1.6.22beta03-*.asc (armored detached GPG signatures)
Changes since the last public release (1.6.21):
Version 1.6.22beta01 [January 23, 2016]
Changed PNG_USE_MKSTEMP to __COVERITY__ to select alternate
"tmpfile()" implementation in contrib/libtests/pngstest.c
Fixed NO_STDIO build of pngunknown.c to skip calling png_init_io()
if there is no stdio.h support.
Added a png_image_write_to_memory() API and a number of assist macros
to allow an application that uses the simplified API write to bypass
stdio and write directly to memory.
Added some warnings (png.h) and some check code to detect *possible*
overflow in the ROW_STRIDE and simplified image SIZE macros. This
disallows image width/height/format that *might* overflow. This is
a quiet API change that limits in-memory image size (uncompressed) to
less than 4GByte and image row size (stride) to less than 2GByte.
Revised workaround for false-positive Coverity issue in pngvalid.c.
Version 1.6.22beta02 [February 8, 2016]
Only use exit(77) in configure builds.
Corrected error in PNG_IMAGE_PNG_SIZE_MAX. This new macro underreported
the palette size because it failed to take into account that the memory
palette has to be expanded to full RGB when it is written to PNG.
Updated CMakeLists.txt, added supporting scripts/gen*.cmake.in
and test.cmake.in (Roger Leigh).
Relaxed limit checks on gamma values in pngrtran.c. As suggested in
the comments gamma values outside the range currently permitted
by png_set_alpha_mode are useful for HDR data encoding. These values
are already permitted by png_set_gamma so it is reasonable caution to
extend the png_set_alpha_mode range as HDR imaging systems are starting
to emerge.
Version 1.6.22beta03 [February 13, 2016]
Added a common-law trademark notice and export control information
to the LICENSE file, png.h, and the man page.
Restored "& 0xff" in png_save_uint_16() and png_save_uint_32() that
were accidentally removed from libpng-1.6.17.
Changed PNG_INFO_cHNK and PNG_FREE_cHNK from 0xnnnn to 0xnnnnU in png.h
(Robert C. Seacord).
Removed dubious "#if INT_MAX" test from png.h that was added to
libpng-1.6.19bet02 (John Bowler).
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(subscription required; visit
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to subscribe)
or to glennrp at users.sourceforge.net
Glenn R-P