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Diffstat (limited to 'Build/source/libs/libpng/libpng-src/ANNOUNCE')
-rw-r--r-- | Build/source/libs/libpng/libpng-src/ANNOUNCE | 83 |
1 files changed, 17 insertions, 66 deletions
diff --git a/Build/source/libs/libpng/libpng-src/ANNOUNCE b/Build/source/libs/libpng/libpng-src/ANNOUNCE index bca42501d23..330fd107857 100644 --- a/Build/source/libs/libpng/libpng-src/ANNOUNCE +++ b/Build/source/libs/libpng/libpng-src/ANNOUNCE @@ -1,4 +1,4 @@ -Libpng 1.6.24 - August 4, 2016 +Libpng 1.6.25 - September 1, 2016 This is a public release of libpng, intended for use in production codes. @@ -7,78 +7,29 @@ Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script - libpng-1.6.24.tar.xz (LZMA-compressed, recommended) - libpng-1.6.24.tar.gz + libpng-1.6.25.tar.xz (LZMA-compressed, recommended) + libpng-1.6.25.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script - lpng1624.7z (LZMA-compressed, recommended) - lpng1624.zip + lpng1625.7z (LZMA-compressed, recommended) + lpng1625.zip Other information: - libpng-1.6.24-README.txt - libpng-1.6.24-LICENSE.txt - libpng-1.6.24-*.asc (armored detached GPG signatures) - -Changes since the last public release (1.6.23): - Avoid potential overflow of the PNG_IMAGE_SIZE macro. This macro - is not used within libpng, but is used in some of the examples. - Correct filter heuristic overflow handling. This was broken when the - write filter code was moved out-of-line; if there is a single filter and - the heuristic sum overflows the calculation of the filtered line is not - completed. In versions prior to 1.6 the code was duplicated in-line - and the check not performed, so the filter operation completed; however, - in the multi-filter case where the sum is performed the 'none' filter would - be selected if all the sums overflowed, even if it wasn't in the filter - list. The fix to the first problem is simply to provide PNG_SIZE_MAX as - the current lmins sum value; this means the sum can never exceed it and - overflows silently. A reasonable compiler that does choose to inline - the code will simply eliminate the sum check. - The fix to the second problem is to use high precision arithmetic (this is - implemented in 1.7), however a simple safe fix here is to chose the lowest - numbered filter in the list from png_set_filter (this only works if the - first problem is also fixed) (John Bowler). - Use a more efficient absolute value calculation on SSE2 (Matthieu Darbois). - Fixed the case where PNG_IMAGE_BUFFER_SIZE can overflow in the application - as a result of the application using an increased 'row_stride'; previously - png_image_finish_read only checked for overflow on the base calculation of - components. (I.e. it checked for overflow of a 32-bit number on the total - number of pixel components in the output format, not the possibly padded row - length and not the number of bytes, which for linear formats is twice the - number of components.) - MSVC does not like '-(unsigned)', so replaced it with 0U-(unsigned) - MSVC does not like (uInt) = -(unsigned) (i.e. as an initializer), unless - the conversion is explicitly invoked by a cast. - Put the SKIP definition in the correct place. It needs to come after the - png.h include (see all the other .c files in contrib/libtests) because it - depends on PNG_LIBPNG_VER. - Removed the three compile warning options from the individual project - files into the zlib.props globals. It increases the warning level from 4 - to All and adds a list of the warnings that need to be turned off. This is - semi-documentary; the intent is to tell libpng users which warnings have - been examined and judged non-fixable at present. The warning about - structure padding is fixable, but it would be a signficant change (moving - structure members around). - Optimized absolute value calculation in filter selection, similar to - code in the PAETH decoder in pngrutil.c. Build with PNG_USE_ABS to - use this. - Added pngcp to the build together with a pngcp.dfa configuration test. - Added high resolution timing to pngcp. - Added "Common linking failures" section to INSTALL. - Relocated misplaced #endif in png.c sRGB profile checking. - Fixed two Coverity issues in pngcp.c. - Avoid filter-selection heuristic sum calculations in cases where only one - filter is a candidate for selection. This trades off code size (added - private png_setup_*_row_only() functions) for speed. - Fixed some indentation to comply with our coding style. - Added contrib/tools/reindent. - Eliminated unnecessary tests of boolean png_isaligned() vs 0. - Conditionally compile SSE2 headers in contrib/intel/intel_sse.patch - Conditionally compile png_decompress_chunk(). - Conditionally compile ARM_NEON headers in pngpriv.h - Updated contrib/intel/intel_sse.patch + libpng-1.6.25-README.txt + libpng-1.6.25-LICENSE.txt + libpng-1.6.25-*.asc (armored detached GPG signatures) + +Changes since the last public release (1.6.24): + Reject oversized iCCP profile immediately. + Cleaned up PNG_DEBUG compile of pngtest.c. + Conditionally compile png_inflate(). + Don't install pngcp; it conflicts with pngcp in the pngtools package. + Minor editing of INSTALL, (whitespace, added copyright line) + Added MIPS support (Mandar Sahastrabuddhe <Mandar.Sahastrabuddhe@imgtec.com>). + Rebased contrib/intel/intel_sse.patch after the MIPS implementation. 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