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129 Commits

Author SHA1 Message Date
Nick Terrell
376f435914 [dictBuilder] Set default compression level to 3 2017-08-24 16:21:05 -07:00
Yann Collet
32fb407c9d updated a bunch of headers 
for the new license
 2017-08-18 16:52:05 -07:00
Yann Collet
2bd6440be0 pinned down error code enum values 
Note : all error codes are changed by this new version,
but it's expected to be the last change for existing codes.

Codes are now grouped by category, and receive a manually attributed value.
The objective is to guarantee that
error code values will not change in the future
when introducing new codes.
Intentionnal empty spaces and ranges are defined
in order to keep room for potential new codes.
 2017-07-13 17:12:16 -07:00
Yann Collet
590937df20 Merge pull request #739 from facebook/refPrefix 
ZSTD_refPrefix
 2017-06-29 04:36:03 -07:00
Yann Collet
7d3816183f exposed ZSTD_MAGIC_DICTIONARY in zstd.h 
makes it easier to explain ZSTD_dictMode
 2017-06-27 13:50:34 -07:00
Nick Terrell
5b7fd7c422 [zdict] Make COVER the default algorithm 2017-06-26 21:09:22 -07:00
Yann Collet
fa3671eac7 changed ZSTD_BLOCKSIZE_ABSOLUTEMAX into ZSTD_BLOCKSIZE_MAX 
Also :
change ZSTD_getBlockSizeMax() into ZSTD_getBlockSize()
created ZSTD_BLOCKSIZELOG_MAX
 2017-05-19 10:51:30 -07:00
Nick Terrell
5152fb2cb2 Convert all tabs to spaces 2017-03-29 18:51:58 -07:00
Yann Collet
4cf0093571 restored bonus rule 2017-03-26 14:51:00 -07:00
Yann Collet
69017bf253 Merge branch 'dev' into LegacyDictBuilder 2017-03-26 14:39:13 -07:00
Yann Collet
582760818f minor refactor 
add const
changed if for easier to add new conditions
 2017-03-26 03:04:56 -07:00
Yann Collet
858f72eeb8 fixed dictBuilder issue 
dictionary loading would fail during entropy analysis
 2017-03-26 02:50:00 -07:00
Yann Collet
ecee9f2ef8 fixed conversion warnings 2017-03-26 00:59:14 -07:00
Yann Collet
4c41d37fcc changed test for new syntax 
--dictID= and --maxdict=
 2017-03-24 18:36:56 -07:00
Yann Collet
d41f707e88 minor improvement : remove duplicates with 1 char prefix difference 2017-03-24 17:56:45 -07:00
Yann Collet
96aa3019b2 changed advanced commands --maxdict= and --dictID= 
now works with the `=` variant, which is the recommended one.
Old variant `--dictID #` still works, for compatibility with existing scripts.
Long term objective is to remove the old variant..
 2017-03-24 16:04:29 -07:00
Yann Collet
9da3b215ec Ensure all limits derived from same constants 
Now uses ZDICT_DICTSIZE_MIN and ZDICT_CONTENTSIZE_MIN
from zdict.h.

Also : reduced values to 256 and 128 respectively
 2017-03-24 15:02:09 -07:00
Yann Collet
f332ece468 dictBuilder fails to create dictionary on certain input 
Properly expressed with an error code (see zstd_errors.h)
and a cli return code != 0
 2017-03-23 16:24:02 -07:00
Sean Purcell
042ba122ae Change g_displayLevel to int and fix DISPLAYUPDATE flush 2017-03-23 11:21:59 -07:00
Yann Collet
aca113f4f5 fixed ZSTD_sizeof_?Dict() 2016-12-23 22:25:03 +01:00
Nick Terrell
bcbe77e994 ZDICT_finalizeDictionary() flipped comparison 
`ZDICT_finalizeDictionary()` had a flipped comparison.
I also allowed `dictBufferCapacity == dictContentSize`.
It might be the case that the user wants to fill the dictionary
completely up, and then let zstd take exactly the space it needs
for the entropy tables.
 2016-12-22 18:01:14 -08:00
Yann Collet
d76d1a9ef0 added ZDICT_finalizeDictionary() 2016-12-22 20:18:43 +01:00
Yann Collet
0819abe3c1 added ZSTD_createDDict_byReference() body 2016-12-21 19:25:15 +01:00
Yann Collet
1496c3dc47 Fix : size estimation when some samples are very large 2016-12-18 11:58:23 +01:00
Yann Collet
d46ecb58a5 added dll compilation tests 2016-12-17 16:28:12 +01:00
Yann Collet
0a5a5fb7fd Fix #418 : printing selected segments in zdict debug mode can segfault with certain pathological patterns 2016-11-02 13:57:55 -07:00
Yann Collet
52c1bf93fe improved dicitonary segment merge 2016-10-18 16:34:58 -07:00
Yann Collet
2b361cf2f1 minor opt 2016-10-14 16:09:07 -07:00
Yann Collet
df6797447f update dictionary builder warning comments 2016-09-27 15:14:32 +02:00
Yann Collet
47094ea66b added comment on filePos 2016-09-26 18:03:33 +02:00
Yann Collet
97b378a6f8 Streaming : dictionary compression on multiple files / segments can correctly provide srcSize into header (when provided) using pledgedSrcSize. 2016-09-21 17:20:19 +02:00
Yann Collet
d56dbc02d3 removed g_displayLevel 2016-09-02 17:28:41 -07:00
Yann Collet
855766d73d clarified dictionary in format description 2016-09-02 17:04:49 -07:00
Yann Collet
d725427a3c g_time => local displayTime 2016-09-02 15:32:39 -07:00
Yann Collet
4ded9e591c added boilerplate 2016-08-30 11:06:28 -07:00
Yann Collet
3b15f1f10f minor refactor 2016-08-30 09:58:50 -07:00
Yann Collet
da3fbcb302 Added ZDICT_getDictID() 2016-08-19 14:23:58 +02:00
Yann Collet
49d105cfcf better warning and error messages in case of dictionary training failure (#292) 2016-08-18 15:02:11 +02:00
Yann Collet
e9b414d825 fixed msan warning (#281) 2016-08-11 22:09:09 +02:00
Yann Collet
e0b4a2d40f fixed dictionary generation, reported by Bartosz Taudul 2016-08-03 03:36:03 +02:00
Yann Collet
bf2bc112bb bench : controlled display update when loading lot of files 2016-08-02 23:48:13 +02:00
Yann Collet
f116e87f59 fixed analyzer warning 2016-08-01 19:15:18 +02:00
Yann Collet
3ca750372d updated doc (#269) 2016-08-01 02:26:20 +02:00
Yann Collet
70a9ff4af3 fixed too large selectivity level, reported by Ilona Papava 2016-07-30 01:09:14 +02:00
Yann Collet
c0ce4f1211 slightly improved compression speed 2016-07-30 00:55:13 +02:00
Yann Collet
ed57d8530a new seqStore 2016-07-29 21:22:17 +02:00
Yann Collet
4110534886 ZSTD_maxCLevel() is promoted to "stable" API (#254, by @FrancescAlted) 2016-07-27 15:09:11 +02:00
Yann Collet
55a8bea0b5 fixed dictionary generation 2016-07-27 14:48:47 +02:00
Yann Collet
c154d9d6a2 better support for large dictionaries (> 128 KB) 2016-07-27 14:37:00 +02:00
Yann Collet
07626dfa51 improved dictbuilder notifications on selectivity 2016-07-27 13:28:46 +02:00
Yann Collet
f796f7ab45 removed fastscan mode 2016-07-27 12:53:54 +02:00
Yann Collet
dd25a27702 added tutorial warning messages for dictBuilder 2016-07-27 12:43:09 +02:00
Yann Collet
cf05b9d477 ZSTD_getBlockSizeMax() 2016-07-18 16:52:10 +02:00
Yann Collet
e557fd5e92 minor compression level corrections 2016-07-17 16:21:37 +02:00
Yann Collet
f6ff53cd4e implemented dictID reserved ranges 2016-07-15 17:03:38 +02:00
Yann Collet
961b6a0e34 ZSTD_compressBlock() limits block size depending on windowLog parameter 2016-07-15 11:58:49 +02:00
Yann Collet
e9ed5cdc94 fixed minor coverity warning 2016-07-14 21:02:57 +02:00
Yann Collet
17508f1a16 fixed a few minor coverity warnings 2016-07-14 17:18:20 +02:00
Yann Collet
69c2cdb45c fixed conversion warning 2016-07-14 16:52:45 +02:00
Yann Collet
3c174f4da9 fixed minor coverity warning 2016-07-13 17:25:53 +02:00
Yann Collet
fbc69f8649 changed for #245 2016-07-13 13:52:58 +02:00
Yann Collet
29652e2618 sample set limitation closer to 2 GB 2016-07-06 16:25:46 +02:00
Yann Collet
99b045b70a dictBuilder protection vs huge sample sets (>2 GB) 2016-07-06 16:12:38 +02:00
Yann Collet
445d49d898 fixed conversion warning 2016-07-06 13:27:22 +02:00
Yann Collet
a295b3170f fixed conversion warning 2016-07-06 13:13:12 +02:00
Yann Collet
517e1ba623 fixed dictBuilder issue with HC levels. Reported by Bartosz Taudul. 2016-07-06 12:35:09 +02:00
Yann Collet
c093208ab8 fix : potential leak (#229) 2016-06-30 14:07:30 +02:00
Yann Collet
23042929da Fixed : dictBuilder fails if first sample is too small 2016-06-22 11:05:34 +02:00
Yann Collet
ad39b7a718 zdict stores standard rep-offset. 
It can use custom ones, but the proper formula and impact on statistics is not done yet.
 2016-06-16 01:14:41 +02:00
Yann Collet
52a0622beb RepsCodes are saved into Dict 
(uncomplete : need decompression to regenerate them)
 2016-06-16 01:05:04 +02:00
Yann Collet
130fe11394 merged huf_static.h into huf.h . Requires HUF_STATIC_LINKING_ONLY macro. 2016-06-05 00:42:28 +02:00
Yann Collet
49bb0041af removed ZSTD_highbit() from zstd_internal.h, as it is only used by zstd_compress.c 2016-06-04 20:17:38 +02:00
Yann Collet
e69b8ccceb merged zdict_static.h into zdict.h. Now requires ZDICT_STATIC_LINKING_ONLY macro. 2016-06-04 18:56:23 +02:00
Giuseppe Ottaviano
370b751e24 Expose function to add entropy tables to pre-built dictionary. 
In some cases a custom dictionary building algorithm tailored for a specific
input can be more effective than the one produced by `ZDICT_trainFromBuffer`,
but with the current API it's not possible encode the entropy tables into the
custom-built dictionary.

This commit extracts the logic to add entropy tables to a dictionary from
`ZDICT_trainFromBuffer` and exposes it as a function
`ZDICT_addEntropyTablesFromBuffer`.
 2016-05-30 19:50:09 -07:00
Yann Collet
290aaa7521 Added : ability to manually select the dictionary ID of a newly created dictionary 2016-05-30 21:18:52 +02:00
Yann Collet
c46fb924df added dictionary ID (incomplete) 2016-05-29 05:01:04 +02:00
inikep
d5ff2c3d9a ordering of #include 2016-04-28 14:40:45 +02:00
inikep
69fcd7c0ae getFileSize moved to common/util.h 2016-04-28 12:23:33 +02:00
inikep
23a0889301 separation of lib/ into common/, compress/, decompress/, dictBuilder/, legacy/ 2016-04-22 12:43:18 +02:00