X-Git-Url: https://rtime.felk.cvut.cz/gitweb/l4.git/blobdiff_plain/8fe9942cde59835eb3c3c6936d866dd3305582ef..003b628647705666de261350195da72a38f2c4d2:/l4/pkg/libpng/lib/contrib/ANNOUNCE diff --git a/l4/pkg/libpng/lib/contrib/ANNOUNCE b/l4/pkg/libpng/lib/contrib/ANNOUNCE index 47181be42..9f1b66583 100644 --- a/l4/pkg/libpng/lib/contrib/ANNOUNCE +++ b/l4/pkg/libpng/lib/contrib/ANNOUNCE @@ -1,5 +1,4 @@ - -Libpng 1.6.12 - June 12, 2014 +Libpng 1.6.19 - November 12, 2015 This is a public release of libpng, intended for use in production codes. @@ -8,28 +7,104 @@ Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script - libpng-1.6.12.tar.xz (LZMA-compressed, recommended) - libpng-1.6.12.tar.gz + libpng-1.6.19.tar.xz (LZMA-compressed, recommended) + libpng-1.6.19.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script - lpng1612.7z (LZMA-compressed, recommended) - lpng1612.zip + lpng1619.7z (LZMA-compressed, recommended) + lpng1619.zip Other information: - libpng-1.6.12-README.txt - libpng-1.6.12-LICENSE.txt - libpng-1.6.12-*.asc (armored detached GPG signatures) + libpng-1.6.19-README.txt + libpng-1.6.19-LICENSE.txt + libpng-1.6.19-*.asc (armored detached GPG signatures) + +Changes since the last public release (1.6.18): -Changes since the last public release (1.6.11): - Relocated new code from 1.6.11 in png.c to a point after the - declarations (Max Stepin). - Changed file permissions of contrib/tools/intgamma.sh, - test-driver, and compile from 0644 to 0755 (Cosmin). - Ensure "__has_attribute()" macro exists before trying to use it with - old clang compilers (MacPorts Ticket #43939). + Updated obsolete information about the simplified API macros in the + manual pages (Bug report by Arc Riley). + Avoid potentially dereferencing NULL info_ptr in png_info_init_3(). + Rearranged png.h to put the major sections in the same order as + in libpng17. + Eliminated unused PNG_COST_SHIFT, PNG_WEIGHT_SHIFT, PNG_COST_FACTOR, and + PNG_WEIGHT_FACTOR macros. + Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler + (Bug report by Viktor Szakats). Several warnings remain and are + unavoidable, where we test for overflow. + Fixed potential leak of png_pixels in contrib/pngminus/pnm2png.c + Fixed uninitialized variable in contrib/gregbook/rpng2-x.c + Moved config.h.in~ from the "libpng_autotools_files" list to the + "libpng_autotools_extra" list in autogen.sh because it was causing a + false positive for missing files (bug report by Robert C. Seacord). + Removed unreachable "break" statements in png.c, pngread.c, and pngrtran.c + to suppress clang warnings (Bug report by Viktor Szakats). + Fixed some bad links in the man page. + Changed "n bit" to "n-bit" in comments. + Added signed/unsigned 16-bit safety net. This removes the dubious + 0x8000 flag definitions on 16-bit systems. They aren't supported + yet the defs *probably* work, however it seems much safer to do this + and be advised if anyone, contrary to advice, is building libpng 1.6 + on a 16-bit system. It also adds back various switch default clauses + for GCC; GCC errors out if they are not present (with an appropriately + high level of warnings). + Safely convert num_bytes to a png_byte in png_set_sig_bytes() (Robert + Seacord). + Fixed the recently reported 1's complement security issue by replacing + the value that is illegal in the PNG spec, in both signed and unsigned + values, with 0. Illegal unsigned values (anything greater than or equal + to 0x80000000) can still pass through, but since these are not illegal + in ANSI-C (unlike 0x80000000 in the signed case) the checking that + occurs later can catch them (John Bowler). + Fixed png_save_int_32 when int is not 2's complement (John Bowler). + Updated libpng16 with all the recent test changes from libpng17, + including changes to pngvalid.c to ensure that the original, + distributed, version of contrib/visupng/cexcept.h can be used + (John Bowler). + pngvalid contains the correction to the use of SAVE/STORE_ + UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7. More + tests contain the --strict option to detect warnings and the + pngvalid-standard test has been corrected so that it does not + turn on progressive-read. There is a separate test which does + that. (John Bowler) + Also made some signed/unsigned fixes. + Make pngstest error limits version specific. Splitting the machine + generated error structs out to a file allows the values to be updated + without changing pngstest.c itself. Since libpng 1.6 and 1.7 have + slightly different error limits this simplifies maintenance. The + makepngs.sh script has also been updated to more accurately reflect + current problems in libpng 1.7 (John Bowler). + Incorporated new test PNG files into make check. tests/pngstest-* + are changed so that the new test files are divided into 8 groups by + gamma and alpha channel. These tests have considerably better code + and pixel-value coverage than contrib/pngsuite; however,coverage is + still incomplete (John Bowler). + Removed the '--strict' in 1.6 because of the double-gamma-correction + warning, updated pngstest-errors.h for the errors detected with the + new contrib/testspngs PNG test files (John Bowler). + Worked around rgb-to-gray issues in libpng 1.6. The previous + attempts to ignore the errors in the code aren't quite enough to + deal with the 'channel selection' encoding added to libpng 1.7; abort. + Fixed 'pow' macros in pngvalid.c. It is legal for 'pow' to be a + macro, therefore the argument list cannot contain preprocessing + directives. Make sure pow is a function where this happens. This is + a minimal safe fix, the issue only arises in non-performance-critical + code (bug report by Curtis Leach, fix by John Bowler). + Added sPLT support to pngtest.c + Prevent setting or writing over-length PLTE chunk (Cosmin Truta). + Silently truncate over-length PLTE chunk while reading. + Libpng incorrectly calculated the output rowbytes when the application + decreased either the number of channels or the bit depth (or both) in + a user transform. This was safe; libpng overallocated buffer space + (potentially by quite a lot; up to 4 times the amount required) but, + from 1.5.4 on, resulted in a png_error (John Bowler). + Fixed some inconsequential cut-and-paste typos in png_set_cHRM_XYZ_fixed(). + Clarified COPYRIGHT information to state explicitly that versions + are derived from previous versions. + Removed much of the long list of previous versions from png.h and + libpng.3. Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit @@ -38,4 +113,3 @@ to subscribe) or to glennrp at users.sourceforge.net Glenn R-P -#endif