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Comparing liblzf/Changes (file contents):
Revision 1.24 by root, Thu Oct 12 14:38:23 2006 UTC vs.
Revision 1.47 by root, Mon Dec 14 02:05:14 2009 UTC

1 1
2 - fixed hash calculation in C♯ version (Tiago Freitas Leal).
3
43.5 Fri May 1 02:28:42 CEST 2009
5 - lzf_compress did sometimes write one octet past the given output
6 buffer (analyzed and nice testcase by Salvatore Sanfilippo).
7
83.4 Tue Sep 2 06:45:00 CEST 2008
9 - the fix from 3.3 introduced a compression bug, which is fixed in
10 this release (which explains the mysterious prerelease...). Thanks
11 once more to Clément Calmels.
12
133.3 Mon Aug 25 03:17:42 CEST 2008
14 - lzf_compress could access memory after the given input buffer
15 when outputting back references. reported with nice testcase
16 by Clément Calmels.
17
183.2 Fri May 9 18:52:23 CEST 2008
19 - include a workaround for failing POSIX and real-world compliance
20 on 64 bit windows (microsoft claims to support POSIX, but is far
21 from it). (bug found and analysed nicely by John Lilley).
22
233.1 Fri Nov 30 11:33:04 CET 2007
24 - IMPORTANT BUGFIX: a too long final literal run would corrupt data
25 in the encoder (this was introduced in 3.0 only, earlier versions
26 are safe).
27
283.0 Tue Nov 13 22:13:09 CET 2007
29 - switched to 2-clause bsd with "GPL v2 or any later version" option.
30 - speed up compression by ~10-15% in common cases
31 by some manual unrolling.
32 - import some compiler tricks from JSON::XS, for further speed-ups.
33 - tune hash functions depending on ULTRA_FAST or VERY_FAST settings.
34 - for typical binary data (e.g. /bin/bash, memory dumps,
35 canterbury corpus etc.), speed is now comparable to fastlz, but
36 with better compression ratio. with ULTRA_FAST, it's typically
37 3-15% faster than fastlz while still maintaining a similar ratio.
38 (amd64 and core 2 duo, ymmv). thanks a lot for the competition :)
39 - undo inline assembly in compressor, it is no longer helpful.
40 - no changes to the decompressor.
41 - use a HLOG of 16 by default now (formerly 15).
42
432.1 Fri Nov 2 13:34:42 CET 2007
44 - switched to a 2-clause bsd license with GPL exception.
45 - get rid of memcpy.
46 - tentatively use rep movsb on x86 and x86_64 (gcc only) for a
47 moderate speed improvement.
48 - applied patch by Kein-Hong Man to maske lzf.c compile under
49 the crippled mingw32 environment.
50
512.0 Fri Feb 16 23:11:18 CET 2007
2 - replaced lzf demo by industrial-strength lzf utility with behaviour 52 - replaced lzf demo by industrial-strength lzf utility with behaviour
3 similar other compression utilities. Thanks for Stefan Traby for 53 similar other compression utilities. Thanks for Stefan Traby for
4 rewriting it! 54 rewriting it!
55 - fix state arg prototype.
5 56
61.7 Wed Sep 27 17:29:15 CEST 2006 571.7 Wed Sep 27 17:29:15 CEST 2006
7 - remove bogus broken horrific "unlzf" patch by Scott Feeney, 58 - remove bogus "unlzf" patch.
8 note to self: never accept well-meant patches. 59 note to self: never accept well-meant patches.
9 - make lzf more robust in presence of padding bytes or sudden eof. 60 - make lzf more robust in presence of padding bytes or sudden eof.
10 61
111.6 Fri Jul 7 17:31:26 CEST 2006 621.6 Fri Jul 7 17:31:26 CEST 2006
12 - the lzf example utility will now uncompress if invoked 63 - the lzf example utility will now uncompress if invoked
18 - default HLOG size is now 15 (cpu caches have increased). 69 - default HLOG size is now 15 (cpu caches have increased).
19 - documentation fixes. 70 - documentation fixes.
20 71
211.51 Thu Apr 14 22:15:46 CEST 2005 721.51 Thu Apr 14 22:15:46 CEST 2005
22 - incorporated C♯ implementation of both the en- and decoder, 73 - incorporated C♯ implementation of both the en- and decoder,
23 written by "Oren J. Maurice <oymaurice@hazorea.org.il>". 74 written by "Oren J. Maurice".
24 You can find it in the cs/ subdirectory. 75 You can find it in the cs/ subdirectory.
25 - make FRST, NEXT IDX overridable if lzf_c.c is directly included 76 - make FRST, NEXT IDX overridable if lzf_c.c is directly included
26 in the code. 77 in the code.
27 78
281.5 Tue Mar 8 20:23:23 CET 2005 791.5 Tue Mar 8 20:23:23 CET 2005

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