--- cvsroot/liblzf/Changes 2005/03/03 17:06:44 1.13 +++ cvsroot/liblzf/Changes 2007/11/13 10:56:56 1.35 @@ -1,7 +1,62 @@ +2.2 + - switched to GPL v2 or any later version. + - speed up compression by ~10-15% in common cases + by some manual unrolling. + - import some compiler tricks from JSON::XS. + - 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, it is no longer helpful. + - no changes to the decompressor. + +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 contatc address. + - change of contact address. 1.4 Wed Dec 15 08:08:49 CET 2004 - very very slight tuning of the hashing function.