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Diffstat (limited to 'lib/liblzf-3.5/Changes')
| -rw-r--r-- | lib/liblzf-3.5/Changes | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/lib/liblzf-3.5/Changes b/lib/liblzf-3.5/Changes new file mode 100644 index 0000000000..09581ff20f --- /dev/null +++ b/lib/liblzf-3.5/Changes @@ -0,0 +1,125 @@ +3.5 Fri May 1 02:28:42 CEST 2009 + - lzf_compress did sometimes write one octet past the given output + buffer (analyzed and nice testcase by Salvatore Sanfilippo). + +3.4 Tue Sep 2 06:45:00 CEST 2008 + - the fix from 3.3 introduced a compression bug, which is fixed in + this release (which explains the mysterious prerelease...). Thanks + once more to Clément Calmels. + +3.3 Mon Aug 25 03:17:42 CEST 2008 + - lzf_compress could access memory after the given input buffer + when outputting back references. reported with nice testcase + by Clément Calmels. + +3.2 Fri May 9 18:52:23 CEST 2008 + - include a workaround for failing POSIX and real-world compliance + on 64 bit windows (microsoft claims to support POSIX, but is far + from it). (bug found and analysed nicely by John Lilley). + +3.1 Fri Nov 30 11:33:04 CET 2007 + - IMPORTANT BUGFIX: a too long final literal run would corrupt data + in the encoder (this was introduced in 3.0 only, earlier versions + are safe). + +3.0 Tue Nov 13 22:13:09 CET 2007 + - switched to 2-clause bsd with "GPL v2 or any later version" option. + - speed up compression by ~10-15% in common cases + by some manual unrolling. + - import some compiler tricks from JSON::XS, for further speed-ups. + - tune hash functions depending on ULTRA_FAST or VERY_FAST settings. + - for typical binary data (e.g. /bin/bash, memory dumps, + canterbury corpus etc.), speed is now comparable to fastlz, but + with better compression ratio. with ULTRA_FAST, it's typically + 3-15% faster than fastlz while still maintaining a similar ratio. + (amd64 and core 2 duo, ymmv). thanks a lot for the competition :) + - undo inline assembly in compressor, it is no longer helpful. + - no changes to the decompressor. + - use a HLOG of 16 by default now (formerly 15). + +2.1 Fri Nov 2 13:34:42 CET 2007 + - switched to a 2-clause bsd license with GPL exception. + - get rid of memcpy. + - tentatively use rep movsb on x86 and x86_64 (gcc only) for a + moderate speed improvement. + - applied patch by Kein-Hong Man to maske lzf.c compile under + the crippled mingw32 environment. + +2.0 Fri Feb 16 23:11:18 CET 2007 + - replaced lzf demo by industrial-strength lzf utility with behaviour + similar other compression utilities. Thanks for Stefan Traby for + rewriting it! + - fix state arg prototype. + +1.7 Wed Sep 27 17:29:15 CEST 2006 + - remove bogus "unlzf" patch. + note to self: never accept well-meant patches. + - make lzf more robust in presence of padding bytes or sudden eof. + +1.6 Fri Jul 7 17:31:26 CEST 2006 + - the lzf example utility will now uncompress if invoked + as "unlzf" (patch by Scott Feeney). + - add CHECK_INPUT option that adds more checks for input + data validity. + - help applications that do not pass in the correct length + (such as php) by returning either EINVAL or E2BIG. + - default HLOG size is now 15 (cpu caches have increased). + - documentation fixes. + +1.51 Thu Apr 14 22:15:46 CEST 2005 + - incorporated C♯ implementation of both the en- and decoder, + written by "Oren J. Maurice". + You can find it in the cs/ subdirectory. + - make FRST, NEXT IDX overridable if lzf_c.c is directly included + in the code. + +1.5 Tue Mar 8 20:23:23 CET 2005 + - incorporated improvements by Adam D. Moss, + which includes a new VERY_FAST mode which is + a bit slower than ULTRA_FAST but much better, + and enabled it as default. + +1.401 Thu Mar 3 18:00:52 CET 2005 + - use cstring in c++, not string.h. + - change of contact address. + +1.4 Wed Dec 15 08:08:49 CET 2004 + - very very slight tuning of the hashing function. + +1.3 Thu Mar 25 15:41:17 CET 2004 + - changed license of lzf core code to explicitly allow + relicensing under the GPLv2. + - added VPATH support as suggested by Björn Eriksson. + +1.2 Mon Dec 29 13:47:28 CET 2003 + - avoid spurious memory accesses after the to-be-compressed + memory region. originally reported by Michal Zalewski. + - flip LZF_STACK_ARG meaning (to be correct). + +1.1 Tue Dec 23 05:48:32 CET 2003 + - removed #warn directive, it's not worth the hassle. + - add LZF_STACK_ARG and AVOID_ERRNO configurations + for embedded systems. + - make it compile cleanly as c++. + - some small documentation and code fixes. + +1.0 Sun Nov 17 12:37:37 CET 2002 + - slightly better compression ratio, almost unmeasurably + slower. + - some documentation fixes. + +0.4 Thu Jun 13 14:11:10 CEST 2002 + - typoe fix. + - lzf demo program now properly decompresses small files. + - fix another 64 bit issue, found by Laurent Deniel. + +0.3 Tue Jan 16 13:21:14 CET 2001 + - fix silly beginners 32/64 bit mistake. + +0.2 Thu Jan 4 05:56:42 CET 2001 + - now totally independent of autoconfig, for + easy inclusion into other programs. + - much better fine-tuning, faster and better than 0.1. + +0.1 2000 + - initial release. |