AuroraMiddleware/zstd
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32 Commits

Author SHA1 Message Date
Yann Collet
2d76defbfe grouped all histogram functions into hist.c 
renamed functions with HIST_* prefix
 2018-06-13 19:49:31 -04:00
Yann Collet
fa41bcc2c2 grouped debug functions into debug.h 
There were 2 competing set of debug functions
within zstd_internal.h and bitstream.h.
They were mostly duplicate, and required care to avoid messing with each other.

There is now a single implementation, shared by both.

Significant change :
The macro variable ZSTD_DEBUG does no longer exist,
it has been replaced by DEBUGLEVEL,
which required modifying several source files.
 2018-06-13 15:43:09 -04:00
Yann Collet
776128d16f fix corner case when requiring cost of an FSE symbol 
ensure that, when frequency[symbol]==0,
result is (tableLog + 1) bits
with both upper-bit and fractional-bit estimates.

Also : enable BIT_DEBUG in /tests
 2018-05-24 13:59:11 -07:00
Yann Collet
1a26ec6e8d opt: init statistics from dictionary 
instead of starting from fake "default" statistics.
 2018-05-10 17:59:12 -07:00
Yann Collet
ac6105463a opt: minor improvements to log traces 
slight improvement when using fractional-bit evaluation (opt:dictionay)
 2018-05-09 15:46:11 -07:00
Yann Collet
4d5bd32a00 added traces to look at symbol costs 
evaluation looks correct.
 2018-05-09 12:00:12 -07:00
Yann Collet
a95a88af57 removed huf_compress_impl.h 
re-imported all functions inside huf_compress.c
for easier source editing.

Also updated a bunch of code comments
for clarification.
 2018-03-13 14:14:05 -07:00
Yann Collet
653383f74a minor nit from Mac XCode 2018-02-22 15:44:26 -08:00
Nick Terrell
76cb38d085 [zstd] Backport kernel patch from @ColinIanKing 
* Make the U32 table in `FSE_normalizeCount()` static.
* Patch from https://lkml.kernel.org/r/20170922145946.14316-1-colin.king@canonical.com.
* Clang makes non-static tables static anyways. gcc however, does [weird things](https://godbolt.org/g/fvTcED).
* Benchmarks showed no difference in speed.
 2017-09-25 16:18:23 -07:00
Nick Terrell
cae3e3c652 [fse] Fix FSE_optimalTableLog() for srcSize==1 2017-09-18 14:11:18 -07:00
Yann Collet
f9e6590715 Merge pull request #796 from terrelln/is-error 
[FSE][HUF] Inline error checks
 2017-08-15 12:37:28 -07:00
Nick Terrell
07c6ff588e [FSE][HUF] Inline error checks 
Caught by Clang's optimization remarks.
 2017-08-15 11:23:28 -07:00
Nick Terrell
565e925eb7 [libzstd] Fix FORCE_INLINE macro 2017-08-14 21:12:05 -07:00
Nick Terrell
ae20d413da [libzstd] Fix CHECK_V_F macros 2017-07-25 12:52:01 -07:00
Nick Terrell
405d2a1027 Explicitly convert scratchBuffer to unsigned* 2017-04-04 16:35:31 -07:00
Nick Terrell
16a739cab0 Switch call of FSE_count() to FSE_count_wksp() 2017-04-04 16:17:21 -07:00
Nick Terrell
5152fb2cb2 Convert all tabs to spaces 2017-03-29 18:51:58 -07:00
Yann Collet
23776ce290 fixed ERROR_GENERIC on dstSize_tooSmall 
required by users which depends on this error code to size dest buffer
 2017-03-23 17:59:50 -07:00
Sean Purcell
83038d236a Fix bug in FSE distribution normalization 2017-02-22 13:52:48 -08:00
Yann Collet
4596037042 updated fse version 
feature minor refactoring (removing FSE_abs())
also : fix a few minor issues recently introduced in examples
 2017-02-15 12:00:03 -08:00
Yann Collet
643d9a234b replaced usage of FSE_buildCTable by FSE_buildCTable_wksp, using less stack space in the process 2016-12-01 16:24:04 -08:00
Yann Collet
e928f7e16d introduced ext_wksp variants of count to reduce stack memory usage 2016-12-01 16:13:35 -08:00
Yann Collet
979cab412b fixed some minor visual silent cast warnings. 
introduced FSE_count_parallel_wksp().
 2016-11-30 18:10:38 -08:00
Yann Collet
5e00b848a8 FSE_compress_wksp() uses less stack space 2016-11-30 16:46:13 -08:00
Yann Collet
d79a9a00d9 Introduced FSE_compress_wksp() and FSE_buildCTable_wksp() to reduce stack memory usage 2016-11-30 15:52:20 -08:00
Yann Collet
1563bfeabc fixing FORCE_INLINE for older compilers (#330) 2016-09-02 11:44:21 -07:00
Yann Collet
d5c5a77990 minor comments clarifications 2016-07-20 13:35:14 +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
d0e2cd15cb Merged fse_static into fse.h . Now requires FSE_STATIC_LINKING_ONLY macro. 2016-06-05 00:58:01 +02:00
Yann Collet
f22a0d653d huff0 dynamic reduction 2016-05-20 14:36:36 +02:00
Yann Collet
45f84ab7cc all programs use ZSTD_VERSION_STRING from zstd.h to display their version 2016-05-20 12:34:40 +02:00
inikep
23a0889301 separation of lib/ into common/, compress/, decompress/, dictBuilder/, legacy/ 2016-04-22 12:43:18 +02:00