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Comparing liblzf/Changes (file contents):
Revision 1.22 by root, Wed Sep 27 18:06:18 2006 UTC vs.
Revision 1.43 by root, Mon Aug 25 01:40:31 2008 UTC

13.3 Mon Aug 25 03:17:42 CEST 2008
2 - lzf_compress could access memory after the given input buffer
3 when outputting back references. reported with nice testcase
4 by Clément Calmels.
5
63.2 Fri May 9 18:52:23 CEST 2008
7 - include a workaround for failing POSIX and real-world compliance
8 on 64 bit windows (microsoft claims to support POSIX, but is far
9 from it). (bug found and analysed nicely by John Lilley).
10
113.1 Fri Nov 30 11:33:04 CET 2007
12 - IMPORTANT BUGFIX: a too long final literal run would corrupt data
13 in the encoder (this was introduced in 3.0 only, earlier versions
14 are safe).
15
163.0 Tue Nov 13 22:13:09 CET 2007
17 - switched to 2-clause bsd with "GPL v2 or any later version" option.
18 - speed up compression by ~10-15% in common cases
19 by some manual unrolling.
20 - import some compiler tricks from JSON::XS, for further speed-ups.
21 - tune hash functions depending on ULTRA_FAST or VERY_FAST settings.
22 - for typical binary data (e.g. /bin/bash, memory dumps,
23 canterbury corpus etc.), speed is now comparable to fastlz, but
24 with better compression ratio. with ULTRA_FAST, it's typically
25 3-15% faster than fastlz while still maintaining a similar ratio.
26 (amd64 and core 2 duo, ymmv). thanks a lot for the competition :)
27 - undo inline assembly in compressor, it is no longer helpful.
28 - no changes to the decompressor.
29 - use a HLOG of 16 by default now (formerly 15).
30
312.1 Fri Nov 2 13:34:42 CET 2007
32 - switched to a 2-clause bsd license with GPL exception.
33 - get rid of memcpy.
34 - tentatively use rep movsb on x86 and x86_64 (gcc only) for a
35 moderate speed improvement.
36 - applied patch by Kein-Hong Man to maske lzf.c compile under
37 the crippled mingw32 environment.
38
392.0 Fri Feb 16 23:11:18 CET 2007
40 - replaced lzf demo by industrial-strength lzf utility with behaviour
41 similar other compression utilities. Thanks for Stefan Traby for
42 rewriting it!
43 - fix state arg prototype.
1 44
21.7 Wed Sep 27 17:29:15 CEST 2006 451.7 Wed Sep 27 17:29:15 CEST 2006
3 - remove bogus broken horrific "unlzf" patch by Scott Feeney, 46 - remove bogus "unlzf" patch.
4 note to self: never accept well-meant patches. 47 note to self: never accept well-meant patches.
5 - make lzf more robust in presence of padding bytes or sudden eof. 48 - make lzf more robust in presence of padding bytes or sudden eof.
6 49
71.6 Fri Jul 7 17:31:26 CEST 2006 501.6 Fri Jul 7 17:31:26 CEST 2006
8 - the lzf example utility will now uncompress if invoked 51 - the lzf example utility will now uncompress if invoked
14 - default HLOG size is now 15 (cpu caches have increased). 57 - default HLOG size is now 15 (cpu caches have increased).
15 - documentation fixes. 58 - documentation fixes.
16 59
171.51 Thu Apr 14 22:15:46 CEST 2005 601.51 Thu Apr 14 22:15:46 CEST 2005
18 - incorporated C♯ implementation of both the en- and decoder, 61 - incorporated C♯ implementation of both the en- and decoder,
19 written by "Oren J. Maurice <oymaurice@hazorea.org.il>". 62 written by "Oren J. Maurice".
20 You can find it in the cs/ subdirectory. 63 You can find it in the cs/ subdirectory.
21 - make FRST, NEXT IDX overridable if lzf_c.c is directly included 64 - make FRST, NEXT IDX overridable if lzf_c.c is directly included
22 in the code. 65 in the code.
23 66
241.5 Tue Mar 8 20:23:23 CET 2005 671.5 Tue Mar 8 20:23:23 CET 2005

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