AuroraMiddleware/zstd
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1158 Commits

Author SHA1 Message Date
Przemyslaw Skibinski
d365ae3497 zstd_opt.h: small improvement in compression ratio 2016-10-20 11:49:02 +02:00
Przemyslaw Skibinski
575ab00db7 Merge remote-tracking branch 'refs/remotes/facebook/dev' into dev11 2016-10-20 11:01:52 +02:00
Nick Terrell
d760529a05 Fix stack buffer overrun when weightTotal == 0 
If `weightTotal == 0`, then `BIT_highbit32(weightTotal)` is
undefined behavior in the case that it calls `__builtin_clz()`.
If `tableLog == HUF_TABLELOG_ABSOLUTEMAX` then we will access one
byte beyond the end of the buffer.
 2016-10-19 11:39:11 -07:00
Nick Terrell
bb68062c59 Unitialized memory read in ZSTD_decodeSeqHeaders() 
Caused by two things:
1. Not checking that `ip` is in range except for the first byte.
2. `ZSTDv0{5,6}_decodeLiteralsBlock()` could return a value larger than `srcSize`.
 2016-10-18 16:41:33 -07:00
Yann Collet
52c1bf93fe improved dicitonary segment merge 2016-10-18 16:34:58 -07:00
Nick Terrell
7b06ad7a05 Backport fix from commit 125d817 
This fixes a read of unitialized memory.
Full commit hash: 125d81774f.
 2016-10-18 14:52:34 -07:00
Nick Terrell
f45b157d95 Backport fix from commit 9e8b09a 
Fixes uninitialized memory reads.
Full commit hash: 9e8b09a7bd
 2016-10-18 14:22:49 -07:00
Yann Collet
f7906d5955 detect early impossible decompression scenario in legacy decoder v0.5 2016-10-18 13:48:32 -07:00
Yann Collet
9313c8d953 no repeat mode in legacy v0.5 2016-10-18 13:36:15 -07:00
Yann Collet
83d7bdee4b fixed invalid invocation of dictionary in legacy decoder v0.5 2016-10-18 12:25:43 -07:00
Yann Collet
197a55ee7b fix edge case 2016-10-18 11:27:52 -07:00
Nick Terrell
fd98087047 Fix stack buffer overflow in HUF_readCTable() 
If `w ==0` on line 153, then `CTable[n].nbBits == tableLog + 1`.
Then `nbPerRank[CTable[n].nbBits]` and `valPerRank[CTable[n].nbBits]`
are stack buffer overflows.
 2016-10-17 18:16:59 -07:00
Yann Collet
06573e17be fixed minor corner case 2016-10-17 17:28:28 -07:00
Nick Terrell
bfd943ace5 Fix buffer overrun in ZSTD_loadDictEntropyStats() 
The table log set by `FSE_readNCount()` was not checked in
`ZSTD_loadDictEntropyStats()`.  This caused `FSE_buildCTable()`
to stack/heap overflow in a few places.

The benchmarks look good, there is no obvious compression performance regression:

  > ./zstds/zstd.opt.0 -i10 -b1 -e10 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 271.6 MB/s , 716.8 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 204.8 MB/s , 671.1 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 156.8 MB/s , 658.6 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 136.4 MB/s , 665.3 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  98.9 MB/s , 647.0 MB/s
   6#silesia.tar       : 211988480 ->  62979643 (3.366),  65.2 MB/s , 670.4 MB/s
   7#silesia.tar       : 211988480 ->  61974560 (3.421),  44.9 MB/s , 688.2 MB/s
   8#silesia.tar       : 211988480 ->  61028308 (3.474),  32.4 MB/s , 711.9 MB/s
   9#silesia.tar       : 211988480 ->  60416751 (3.509),  21.1 MB/s , 718.1 MB/s
  10#silesia.tar       : 211988480 ->  60174239 (3.523),  22.2 MB/s , 721.8 MB/s

  > ./compress_zstds/zstd.opt.1 -i10 -b1 -e10 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 273.8 MB/s , 722.0 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 203.2 MB/s , 666.6 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 157.4 MB/s , 666.5 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 132.1 MB/s , 661.9 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  96.8 MB/s , 641.6 MB/s
   6#silesia.tar       : 211988480 ->  62979643 (3.366),  63.1 MB/s , 677.0 MB/s
   7#silesia.tar       : 211988480 ->  61974560 (3.421),  44.3 MB/s , 678.2 MB/s
   8#silesia.tar       : 211988480 ->  61028308 (3.474),  33.1 MB/s , 708.9 MB/s
   9#silesia.tar       : 211988480 ->  60416751 (3.509),  21.5 MB/s , 710.1 MB/s
  10#silesia.tar       : 211988480 ->  60174239 (3.523),  21.9 MB/s , 723.9 MB/s
 2016-10-17 16:55:52 -07:00
Nick Terrell
4db751668f Fix buffer overrun in ZSTD_loadEntropy() 
The table log set by `FSE_readNCount()` was not checked in
`ZSTD_loadEntropy()`.  This caused `FSE_buildDTable(dctx->MLTable, ...)`
to overwrite the beginning of `dctx->hufTable`.

The benchmarks look good, there is no obvious performance regression:

  > ./zstds/zstd.opt.0 -i10 -b1 -e5 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 268.2 MB/s , 701.0 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 199.5 MB/s , 666.9 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 154.9 MB/s , 655.6 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 128.9 MB/s , 648.4 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  98.4 MB/s , 633.4 MB/s

  > ./zstds/zstd.opt.2 -i10 -b1 -e5 ~/bench/silesia.tar
   1#silesia.tar       : 211988480 ->  73656930 (2.878), 266.1 MB/s , 703.7 MB/s
   2#silesia.tar       : 211988480 ->  70162842 (3.021), 199.0 MB/s , 666.6 MB/s
   3#silesia.tar       : 211988480 ->  66997986 (3.164), 156.2 MB/s , 656.2 MB/s
   4#silesia.tar       : 211988480 ->  66002591 (3.212), 133.2 MB/s , 647.4 MB/s
   5#silesia.tar       : 211988480 ->  65008480 (3.261),  96.3 MB/s , 633.3 MB/s
 2016-10-17 15:51:15 -07:00
Nick Terrell
ccfcc643da Check if dict is empty before reading first byte 2016-10-17 11:46:03 -07:00
Yann Collet
2b361cf2f1 minor opt 2016-10-14 16:09:07 -07:00
Yann Collet
7933434fdf Merge branch 'dev' of github.com:facebook/zstd into dev 2016-10-14 13:32:35 -07:00
Yann Collet
d4cda27b63 new command -M#, to limit memory usage during decompression (#403) 2016-10-14 13:32:20 -07:00
Nick Terrell
3b9cdf9220 Fix ubsan failures (pass NULL to memcpy) 2016-10-12 20:54:42 -07:00
Yann Collet
5d919e7ac3 added ZSTD_error_frameParameter_windowTooLarge (#403) 2016-10-12 17:29:24 -07:00
Yann Collet
e19111c42f make creates libzstd binaries (#415) 2016-10-12 11:09:36 -07:00
Yann Collet
8b70d012f0 fix cmake 2016-10-12 10:23:53 -07:00
Yann Collet
38fb0dc4cf Merge pull request #416 from terrelln/exec-sequence 
Fix ZSTD_execSequence() edge case
 2016-10-12 10:17:53 -07:00
Nick Terrell
7158584399 Fix ZSTD_execSequence() edge case 2016-10-12 10:05:26 -07:00
Yann Collet
f52cd03e73 bumped version number 2016-10-11 17:29:27 -07:00
Yann Collet
ef2357d0d3 created error_private.c, so that a single list of error strings get included 2016-10-11 17:24:50 -07:00
Yann Collet
14efab827b added zstd_errors.h to include installation 2016-10-11 16:51:29 -07:00
Yann Collet
a17fd7312a changed error_public.h into zstd_errors.h 2016-10-11 16:41:09 -07:00
Yann Collet
18b51b99c0 sync fse 2016-10-11 08:21:09 -07:00
inikep
2d2613399a zstd.h: added the Introduction section 2016-10-06 16:28:21 +02:00
inikep
ba1db376ac fixed clang 3.5 warnings 2016-10-06 14:22:48 +02:00
inikep
82057aa7ec zstd.h: updated comments 2016-10-06 13:23:52 +02:00
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
cf409a7e2a fixed : init*_advanced() followed by reset() with different pledgedSrcSiz 2016-09-26 16:41:05 +02:00
Yann Collet
2f2639438a zstreamtest can fuzztest pledgedSrcSize 2016-09-26 14:06:08 +02:00
Christophe Chevalier
dc245e91cb Changed to use ZSTDLIBv06_API and ZSTDLIBv07_API for DLL exports to fix warning 
- changed name to prevent collision with ZSTDLIB_API used by non-legacy dll exports
 2016-09-23 17:09:36 +02:00
Yann Collet
21412bb3f6 Merge branch 'dev' of github.com:Cyan4973/zstd into dev 2016-09-22 15:57:56 +02:00
Yann Collet
51f4d566c2 small decompression speed boost for very small data 2016-09-22 15:57:28 +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
993060e0f2 cli : better adaptation to small files 2016-09-21 16:46:08 +02:00
Yann Collet
1eb2fdc74f bumped version number 2016-09-18 12:21:47 +02:00
Yann Collet
a6bdf55759 fixed memory leak 2016-09-15 17:02:06 +02:00
Yann Collet
644a8da88a fixed minor conversion warning 2016-09-15 16:16:21 +02:00
Yann Collet
4cb212938c introduced ZSTD_resetCStream() 2016-09-15 14:54:07 +02:00
Yann Collet
fa0c09760c variable renaming 2016-09-15 14:11:01 +02:00
Yann Collet
d7c6589df8 support ZSTD_sizeof_*() on NULL 
added ZSTD_sizeof_CDict()
 2016-09-15 02:57:27 +02:00
Yann Collet
e91c4b4cef introduced ZSTD_resetDStream() . 
added : ZSTD_sizeof_DDict()
 2016-09-14 16:55:44 +02:00
Yann Collet
d092d77cfc minor variable renaming 2016-09-14 16:14:57 +02:00
Yann Collet
64deef3bee Fixed srcSize=1 2016-09-14 00:16:07 +02:00
Yann Collet
26ec254066 new strategy for faster DDict decompression 2016-09-13 16:52:16 +02:00
Yann Collet
ac175d46d4 updated comments 2016-09-13 00:51:47 +02:00
Yann Collet
a3481d6de0 make uninstall 2016-09-12 05:04:26 +02:00
Yann Collet
b3060f7a9e changed streaming decoder behavior : now, when all compressed frame is consumed, it means decompression is completed, with regenerated data fully flushed. 2016-09-09 16:44:16 +02:00
Yann Collet
01c199226a updated decompression streaming example 2016-09-08 19:29:04 +02:00
Yann Collet
5c6d244973 Merge branch 'dev' of github.com:facebook/zstd into dev 2016-09-07 14:54:54 +02:00
Yann Collet
ac8bace6b1 support large skippable frames 2016-09-07 14:54:23 +02:00
Yann Collet
0e07bf3f60 added comments on searchLength min / max (#337) 2016-09-07 06:33:02 +02:00
Yann Collet
95d07d7447 introduced CHECK_E 2016-09-06 16:38:51 +02:00
Yann Collet
3e21ec5b01 introduced CHECK_F 2016-09-06 15:36:19 +02:00
Yann Collet
5c956d593c FORCE_INLINE common definition 2016-09-06 15:05:19 +02:00
Yann Collet
edbcd9f5b2 fixed zbufftest 2016-09-06 14:30:57 +02:00
Yann Collet
b624922b14 fixed checksum 2016-09-06 11:16:57 +02:00
Yann Collet
a7737f6a60 improved compression on small files when using same parameters 2016-09-06 09:44:59 +02:00
Yann Collet
7ae67bb18a small compression speed gains with using_CDict 2016-09-06 06:28:05 +02:00
Yann Collet
1d4208c029 clarified streaming decompression inlined doc 2016-09-06 05:16:40 +02:00
Yann Collet
7c83dfd5c2 ZSTD_frameHeaderSize_prefix (#340), as result of ZSTD_initStream 2016-09-05 19:47:43 +02:00
Yann Collet
fa72f6bdce clarified inline doc for streaming 2016-09-05 17:39:56 +02:00
Yann Collet
c73a8109bb Merge pull request #344 from inikep/dev10 
unified error codes for legacy decoders
 2016-09-05 07:46:33 -07:00
inikep
45db83f98d ZSTD_decodeLiteralsBlock renamed to ZSTDv01_decodeLiteralsBlock 2016-09-05 14:46:24 +02:00
inikep
476964f6a1 ZSTD_decodeSeqHeaders renamed to ZSTDv01_decodeSeqHeaders 2016-09-05 13:34:57 +02:00
inikep
c13faa1b0f legacy decoders: restored #include <intrin.h> for VC++ 2016-09-05 13:25:07 +02:00
inikep
8161e7321a unified error codes for legacy decoders 2016-09-05 12:29:51 +02:00
Thomas Klausner
b85cdabd50 Enable install targets for NetBSD. 2016-09-04 14:37:57 +02:00
Yann Collet
33a0465a51 fixed a few links 2016-09-02 22:11:49 -07:00
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
1563bfeabc fixing FORCE_INLINE for older compilers (#330) 2016-09-02 11:44:21 -07:00
Yann Collet
7304eb7c09 bumped version number 2016-09-01 15:49:26 -07:00
Yann Collet
901e85fe26 version bump 2016-08-31 07:51:25 -07:00
Yann Collet
1c59c20903 removed redundant files 2016-08-31 07:15:44 -07:00
Yann Collet
599c69d917 minor Makefile updates 2016-08-30 13:33:20 -07:00
David Lam
e10f7f3dcb merge 2016-08-30 12:03:36 -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
240795bef7 Merge branch 'dev' of github.com:Cyan4973/zstd into dev 2016-08-30 06:51:55 -07:00
Yann Collet
14200a20f0 Fixed issue #304, reported by @borzunov 2016-08-30 06:51:00 -07:00
David Lam
da9d3b7057 Cleanup some errors in typedef comments and remove duplicated HOWTO from zbuff_decompress.c 2016-08-29 17:31:51 -07:00
Yann Collet
09c3c8e885 Merge pull request #307 from inikep/dev08 
updated README.md
 2016-08-29 16:32:33 -07:00
inikep
6416b0d705 updated README.md 2016-08-29 13:04:26 +02:00
Yann Collet
23b6e05d8e ZSTD_malloc() and ZSTD_free(), to simplify customMem 2016-08-28 21:05:43 -07:00
Yann Collet
5f53b0335e fixed continuation context 2016-08-28 10:00:49 -07:00
Yann Collet
767d8f66fa legacy contexts can be re-used 2016-08-28 08:19:47 -07:00
Yann Collet
4bf317dd00 first version supporting legacy streams (transparent decoding) 2016-08-28 07:43:34 -07:00
Yann Collet
e19a9ef05d update compression level table 2016-08-26 20:02:49 +02:00
Yann Collet
9a021c1aae fixed some minor clang warnings 2016-08-26 09:05:06 +02:00
Yann Collet
cb5a320705 made -Wdocumentation a clang only flag 2016-08-26 08:06:36 +02:00
Yann Collet
87c18b2ebd fixed multiple minor warnings for XCode 2016-08-26 01:43:47 +02:00
Yann Collet
0d59a6f73a removed debug strings 2016-08-25 22:42:46 +02:00
Yann Collet
5a02b69215 reinforced fix for huge files 2016-08-25 22:24:59 +02:00
Yann Collet
96bdd87de4 fixed : compression bug on very large files 2016-08-25 14:34:42 +02:00
inikep
a3a47ec4d0 Merge remote-tracking branch 'refs/remotes/Cyan4973/dev' into Other 2016-08-24 21:25:49 +02:00
Yann Collet
a2cdffe556 fixed wrong parameter issue 2016-08-24 19:42:15 +02:00
inikep
e416e30019 remove unnecessary comments 2016-08-24 17:32:09 +02:00
inikep
4e90f6c1e0 removed ZSTD_LOG_ENCODE and ZSTD_LOG_BLOCK 2016-08-24 17:24:11 +02:00
inikep
83388e109f removed ZSTD_LOG_PARSER 2016-08-24 17:22:20 +02:00
inikep
8a36f8527c removed stats in debug mode 2016-08-24 17:19:12 +02:00
inikep
57ef4b1a0d zstd_v07.c: removed unused macros 2016-08-24 17:16:56 +02:00
Yann Collet
24b68a5b23 update cLevel table for 256KB 2016-08-24 14:22:26 +02:00
Yann Collet
c54692faeb improved level 3 2016-08-24 01:45:46 +02:00
Yann Collet
17e482efdd added ZSTD_setDStreamParameter() 2016-08-23 16:58:10 +02:00
Yann Collet
3071c3e303 STREAM_WINDOW_MAX : protect streaming from unreasonable memory requirements 2016-08-23 01:34:34 +02:00
Yann Collet
70e3b31306 fixed playtests on os-x 2016-08-23 01:18:06 +02:00
Yann Collet
cb3276329a added sizeof CStream and DStream 2016-08-23 00:31:59 +02:00
Yann Collet
d1733f7417 fixed crc bug in rare timing conditions within bench.c 2016-08-21 01:04:46 +02:00
Yann Collet
8baf78a291 minor coding style 2016-08-20 13:04:20 +02:00
Yann Collet
1bee2d5e08 slight decompression speed improvement 2016-08-20 02:59:04 +02:00
Yann Collet
0cfe2ec2fd sync fse version 2016-08-20 00:26:26 +02:00
Yann Collet
af1960396b sync huff0 2016-08-19 19:38:19 +02:00
Yann Collet
7be46bf8f2 promoted streaming API to stable 
(except _advanced() variants)
 2016-08-19 18:39:36 +02:00
Yann Collet
fdba57d513 update version number 2016-08-19 18:32:30 +02:00
Yann Collet
da3fbcb302 Added ZDICT_getDictID() 2016-08-19 14:23:58 +02:00
Yann Collet
a5dbf9f629 Merge pull request #297 from borzunov/dev 
Export functions related to dictionary compression from DLL
 2016-08-18 15:05:01 +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
Alexander Borzunov
0f6f17a14f Rename ZSTDLIB_API to ZDICTLIB_API in zdict.h 2016-08-18 16:47:06 +05:00
Alexander Borzunov
1f48382b1a Export functions related to dictionary compression from DLL 2016-08-18 16:12:49 +05:00
Yann Collet
e80d15304a Merge pull request #296 from inikep/Other 
Other
 2016-08-18 11:48:48 +02:00
inikep
a7bb322a93 removed never referenced functions 2016-08-18 10:30:21 +02:00
Yann Collet
18442c1482 minor refactoring 2016-08-18 01:40:32 +02:00
Yann Collet
c411902230 fixed g++ conversion warning 2016-08-17 01:50:54 +02:00
Yann Collet
53e17fbd5e updated streaming API 2016-08-17 01:39:22 +02:00
Yann Collet
655393cc72 updated doc for streaming API 2016-08-16 15:11:28 +02:00
Yann Collet
104e5b072d added : streaming decompression API 2016-08-16 15:11:28 +02:00
Yann Collet
5a0c8e2439 new streaming API (compression) 2016-08-16 15:11:27 +02:00
Yann Collet
ba92046031 Merge branch 'dev' of github.com:Cyan4973/zstd into dev 2016-08-11 22:10:04 +02:00
Yann Collet
e9b414d825 fixed msan warning (#281) 2016-08-11 22:09:09 +02:00
inikep
5f49eba512 added usage of rep[0]-1 for the optimal parser 2016-08-10 15:01:53 +02:00
inikep
98e08cbe34 fixed: tree not updated after finding very long rep matches 2016-08-10 15:00:30 +02:00
inikep
038d1497c9 fixed compilation with Visual Studio 2005 2016-08-10 14:30:10 +02:00
inikep
48849f86f0 fixed compilation with Intel Compiler with Windows 2016-08-10 14:26:35 +02:00
Yann Collet
1ea5622a32 updated xxhash 2016-08-10 09:40:08 +02:00
Yann Collet
666398e7ed added : xxhash namespace enforced from xxhash.h. 
added : xxhash namespace test.
removed : -DXXH_NAMESPACE
 2016-08-10 08:16:51 +02:00
Yann Collet
8ded0b84aa update xxhash to v0.6.2 2016-08-10 07:40:40 +02:00
Yann Collet
280f9a8754 minor comment 2016-08-08 00:44:00 +02:00
Yann Collet
e0b4a2d40f fixed dictionary generation, reported by Bartosz Taudul 2016-08-03 03:36:03 +02:00
Yann Collet
ae40b18d55 bumped library number 2016-08-03 01:59:21 +02:00
Yann Collet
0763905f44 ZSTD_compress_usingCDict() correctly provides original size by default in frame header 
Fixed dictionary examples
 2016-08-03 01:57:57 +02:00
Yann Collet
bf2bc112bb bench : controlled display update when loading lot of files 2016-08-02 23:48:13 +02:00