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96 lines
4.3 KiB
Plaintext
96 lines
4.3 KiB
Plaintext
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Libpng 1.6.7beta04 - October 24, 2013
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This is not intended to be a public release. It will be replaced
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within a few weeks by a public version or by another test version.
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Files available for download:
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Source files with LF line endings (for Unix/Linux) and with a
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"configure" script
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1.6.7beta04.tar.xz (LZMA-compressed, recommended)
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1.6.7beta04.tar.gz
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Source files with CRLF line endings (for Windows), without the
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"configure" script
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lp167b04.7z (LZMA-compressed, recommended)
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lp167b04.zip
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Other information:
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1.6.7beta04-README.txt
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1.6.7beta04-LICENSE.txt
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Gnupg/*.asc (PGP armored detached signatures)
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Changes since the last public release (1.6.6):
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Version 1.6.7beta01 [September 30, 2013]
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Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE
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combination
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Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also
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fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff
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which terminates the make options (as by default in recent versions of
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Gentoo).
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Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
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png_modifier are greater than that of png_store and as a consequence
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compilation of pngvalid.c results in a warning about increased alignment
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requirements because of the bare cast to (png_modifier*). The code is safe,
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because the pointer is known to point to a stack allocated png_modifier,
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but this change avoids the warning.
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Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
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compiled without the CHECK option it defaulted to on, not off.
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Check user callback behavior in pngunknown.c. Previous versions compiled
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if SAVE_UNKNOWN was not available but did nothing since the callback
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was never implemented.
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Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
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Version 1.6.7beta02 [October 12, 2013]
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Made changes for compatibility with automake 1.14:
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1) Added the 'compile' program to the list of programs that must be cleaned
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in autogen.sh
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2) Added 'subdir-objects' which causes .c files in sub-directories to be
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compiled such that the corresponding .o files are also in the
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sub-directory. This is because automake 1.14 warns that the
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current behavior of compiling to the top level directory may be removed
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in the future.
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3) Updated dependencies on pnglibconf.h to match the new .o locations and
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added all the files in contrib/libtests and contrib/tools that depend
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on pnglibconf.h
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4) Added 'BUILD_SOURCES = pnglibconf.h'; this is the automake recommended
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way of handling the dependencies of sources that are machine generated;
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unfortunately it only works if the user does 'make all' or 'make check',
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so the dependencies (3) are still required.
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Cleaned up (char*) casts of zlib messages. The latest version of the Intel C
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compiler complains about casting a string literal as (char*), so copied the
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treatment of z_const from the library code into pngfix.c
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Simplified error message code in pngunknown. The simplification has the
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useful side effect of avoiding a bogus warning generated by the latest
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version of the Intel C compiler (it objects to
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condition ? string-literal : string-literal).
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Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always
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removing the 1.14 'compile' script but never checking for it.
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Version 1.6.7beta03 [October 19, 2013]
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Added ARMv8 support (James Yu <james.yu at linaro.org>). Added file
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arm/filter_neon_intrinsics.c; enable with -mfpu=neon.
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Revised pngvalid to generate size images with as many filters as it can
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manage, limited by the number of rows.
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Cleaned up ARM NEON compilation handling. The tests are now in pngpriv.h
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and detect the broken GCC compilers.
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Version 1.6.7beta04 [October 24, 2013]
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Allow clang derived from older GCC versions to use ARM intrinsics. This
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causes all clang builds that use -mfpu=neon to use the intrinsics code,
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not the assembler code. This has only been tested on iOS 7. It may be
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necessary to exclude some earlier clang versions but this seems unlikely.
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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https://lists.sourceforge.net/lists/listinfo/png-mng-implement
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to subscribe)
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or to glennrp at users.sourceforge.net
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Glenn R-P
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