Commit Graph

32 Commits (a55ffbb31b8ea43cb043232a6d96d4506528ee6e)

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it has been replaced by DEBUGLEVEL,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