|
|
1 | |
|
|
2 | TODO: try unaligned copy again in decompressor |
|
|
3 | TODO: allow size-optimised binaries by avoiding unrolling |
|
|
4 | TODO: implement lzf_c_best in lzf. |
|
|
5 | TODO: undefined unaligned access |
|
|
6 | |
|
|
7 | 3.8 (unreleased) |
|
|
8 | - support a state arg for lzf_c_best. |
|
|
9 | |
|
|
10 | 3.7 (unreleased) |
|
|
11 | - add lzf_c_best.c, a slower but better compressor. |
|
|
12 | - switch to a multiplicative hash (developed with Steinar Gunderson), |
|
|
13 | which is faster on modern cpus and compresses a bit better. The old |
|
|
14 | hash function which uses only shifts is still available. |
|
|
15 | - allow user configurable hash table slots, which makes it possible |
|
|
16 | to use e.g. 16 bit offsets for a smaller hashtable (if your data is |
|
|
17 | always < 64kb). |
|
|
18 | - use _WIN32, not WIN32, when testing for windows (fails with bcc), |
|
|
19 | patch by Tamas Tevesz. |
|
|
20 | - try to port to win64+gcc, which is non-posix but doesn't have _int64 |
|
|
21 | (reported by Maciej Adamczyk). |
|
|
22 | |
| 1 | 3.6 Mon Feb 7 17:37:31 CET 2011 |
23 | 3.6 Mon Feb 7 17:37:31 CET 2011 |
| 2 | - fixed hash calculation in C♯ version (Tiago Freitas Leal). |
24 | - fixed hash calculation in C♯ version (Tiago Freitas Leal). |
| 3 | - unroll copy for small sizes, use memcpy for larger sizes, |
25 | - unroll copy for small sizes, use memcpy for larger sizes, |
| 4 | greatly speeding up decompression in most cases. |
26 | greatly speeding up decompression in most cases. |
| 5 | - finally disable rep movsb - it's a big loss on modern intel cpus, |
27 | - finally disable rep movsb - it's a big loss on modern intel cpus, |
| … | |
… | |
| 51 | 2.1 Fri Nov 2 13:34:42 CET 2007 |
73 | 2.1 Fri Nov 2 13:34:42 CET 2007 |
| 52 | - switched to a 2-clause bsd license with GPL exception. |
74 | - switched to a 2-clause bsd license with GPL exception. |
| 53 | - get rid of memcpy. |
75 | - get rid of memcpy. |
| 54 | - tentatively use rep movsb on x86 and x86_64 (gcc only) for a |
76 | - tentatively use rep movsb on x86 and x86_64 (gcc only) for a |
| 55 | moderate speed improvement. |
77 | moderate speed improvement. |
| 56 | - applied patch by Kein-Hong Man to maske lzf.c compile under |
78 | - applied patch by Kein-Hong Man to make lzf.c compile under |
| 57 | the crippled mingw32 environment. |
79 | the crippled mingw32 environment. |
| 58 | |
80 | |
| 59 | 2.0 Fri Feb 16 23:11:18 CET 2007 |
81 | 2.0 Fri Feb 16 23:11:18 CET 2007 |
| 60 | - replaced lzf demo by industrial-strength lzf utility with behaviour |
82 | - replaced lzf demo by industrial-strength lzf utility with behaviour |
| 61 | similar other compression utilities. Thanks for Stefan Traby for |
83 | similar other compression utilities. Thanks for Stefan Traby for |
