diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-08-04 05:39:35 +0000 |
---|---|---|
committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-08-04 05:39:35 +0000 |
commit | b236c622960586df03fd4e9eae94da828c5b2737 (patch) | |
tree | f1faccea25da9e9d0e4930aed4603b989586a44e /Build/source/libs/libpng/libpng-src/CHANGES | |
parent | 451cdcf7102865e4d170692a0d7ec0d8b8813f88 (diff) |
libpng 1.6.24
git-svn-id: svn://tug.org/texlive/trunk@41798 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/libpng/libpng-src/CHANGES')
-rw-r--r-- | Build/source/libs/libpng/libpng-src/CHANGES | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/Build/source/libs/libpng/libpng-src/CHANGES b/Build/source/libs/libpng/libpng-src/CHANGES index 0d6180ffad1..d4f0c8ba198 100644 --- a/Build/source/libs/libpng/libpng-src/CHANGES +++ b/Build/source/libs/libpng/libpng-src/CHANGES @@ -5596,6 +5596,85 @@ Version 1.6.23rc02 [June 4, 2016] Version 1.6.23 [June 9, 2016] Fixed bad link to RFC2083 in png.5 (Nikola Forro). +Version 1.6.24beta01 [June 11, 2016] + Avoid potential overflow of the PNG_IMAGE_SIZE macro. This macro + is not used within libpng, but is used in some of the examples. + +Version 1.6.24beta02 [June 23, 2016] + 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). + +Version 1.6.24beta03 [July 4, 2016] + 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. + +Version 1.6.24beta04 [July 8, 2016] + 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. + +Version 1.6.24beta05 [July 13, 2016] + Fixed some indentation to comply with our coding style. + Added contrib/tools/reindent. + +Version 1.6.24beta06 [July 18, 2016] + Fixed more indentation to comply with our coding style. + Eliminated unnecessary tests of boolean png_isaligned() vs 0. + +Version 1.6.24rc01 [July 25, 2016] + No changes. + +Version 1.6.24rc02 [August 1, 2016] + Conditionally compile SSE2 headers in contrib/intel/intel_sse.patch + Conditionally compile png_decompress_chunk(). + +Version 1.6.24rc03 [August 2, 2016] + Conditionally compile ARM_NEON headers in pngpriv.h + Updated contrib/intel/intel_sse.patch + +Version 1.6.24[August 4, 2016] + No changes. + Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement |