Yann Collet
49af41820d
clarified status of zstdmt_compress.h API
2017-07-05 17:21:13 -07:00
Yann Collet
27e883371d
fixed wrong assert() condition
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A single job created by ZSTDMT_compress() can be < 256KB
if data to compress is < 256 KB
(in which case it is delegated to single thread mode)
2017-07-04 19:33:16 -07:00
Yann Collet
2cb9774f5e
more precise estimation of amount to flush at end of stream (single thread mode)
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also : can use DEBUGLEVEL variable in /tests
2017-07-04 12:39:26 -07:00
Yann Collet
6383372dec
fixed : 0-copy in NULL is UB
2017-07-04 10:36:41 -07:00
Yann Collet
2de2396a36
refactor ZSTDMT_compress()
2017-07-03 16:23:36 -07:00
Yann Collet
2084b041f4
fixed comments
2017-07-03 15:52:19 -07:00
Yann Collet
5a77361595
fixed wrong function name in comment
2017-07-03 15:21:24 -07:00
cyan4973
1bafe393e4
fix : ZSTDMT_compressStream_generic() can accept NULL input
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also : converge implementations towards new version of ZSTDMT_compressStream_generic()
2017-07-01 06:59:24 -07:00
Yann Collet
58bd0e70fc
fixed : dictionary compression with new advanced API in Multi-threading mode
2017-06-30 16:01:02 -07:00
Yann Collet
d8b33a598d
Optimized ZSTDMT single-pass mode speed on large sources
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by ensuring job sizes remain "not too large"
2017-06-30 15:44:57 -07:00
Yann Collet
d5c046c609
implemented shortcut for zstd_compress_generic() in MT mode
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added ZSTDMT_compress_advanced() API
2017-06-30 14:51:01 -07:00
Yann Collet
a3d9926c40
compression optimization opportunity
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switch to single-pass mode directly into output buffer
when outputSize >= ZSTD_compressBound(inputSize).
Speed gains observed with fullbench (~+15% on level 1)
2017-06-29 14:44:49 -07:00
Yann Collet
037466245f
refactor ZSTD_check_compressionLevel_monotonicIncrease_memoryBudget()
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use less macro statements
the initial version was meant to work with STATIC_ASSERT
but since it doesn't work and needs assert()
it's possible to rewrite it using normally compiled code
which is better for compiler.
Downside : the error message is less precise.
There is a DEBUGLOG(3,) to compensate.
2017-06-28 20:24:08 -07:00
Yann Collet
2bf428df45
Merge branch 'advancedAPI2' into refPrefix
2017-06-28 16:35:49 -07:00
Yann Collet
1ca76039af
fixed -Wdeclaration-after-statement
2017-06-28 15:40:21 -07:00
Yann Collet
813535105b
added function to control monotonic memory budget increase of ZSTD_defaultCParameters[0]
...
It's a runtime test, based on assert(),
played once, on first ZSTD_getCParams() usage,
when ZSTD_DEBUG is enabled.
2017-06-28 15:34:56 -07:00
Yann Collet
adbe74a8ac
adjusted compression levels to guarantee a monotonically increasing memory budget
2017-06-28 13:22:37 -07:00
Yann Collet
33a6639039
fixed ZSTD_refPrefix with Multithread-enabled CCtx
2017-06-28 11:09:43 -07:00
Yann Collet
2e4274262d
controlled dictMode
2017-06-27 17:09:12 -07:00
Yann Collet
b7372933b8
implemented ZSTD_refPrefix()
2017-06-27 15:49:12 -07:00
Yann Collet
7d3816183f
exposed ZSTD_MAGIC_DICTIONARY in zstd.h
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makes it easier to explain ZSTD_dictMode
2017-06-27 13:50:34 -07:00
Yann Collet
fecc721fd9
added parameter ZSTD_p_refDictContent
2017-06-27 11:46:39 -07:00
Yann Collet
dde10b23fe
refactored ZSTD_estimateDStreamSize()
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now uses windowSize as argument.
Also : created ZSTD_estimateDStreamSize_fromFrame()
2017-06-26 17:44:26 -07:00
Yann Collet
09ae03a570
ZSTD_estimateCDictSize_advanced()
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ZSTD_estimateCDictSize() now uses same arguments as ZSTD_createCDict()
ZSTD_estimateCDictSize_advanced() uses same arguments as ZSTD_createCDict_advanced()
2017-06-26 16:47:32 -07:00
Yann Collet
0c9a915a28
ZSTD_estimateCStreamSize_advanced()
2017-06-26 16:02:25 -07:00
Yann Collet
31af8290d1
ZSTD_estimateCCtx_advanced()
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ZSTD_estimateCCtx() is now a "simple" function,
taking int compressionLevel as single argument.
ZSTD_estimateCCtx_advanced() takes a CParams argument,
which is both more complete and more complex to generate.
2017-06-26 15:52:39 -07:00
Yann Collet
ef269c1b68
Merge pull request #725 from facebook/advancedAPI2
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New Advanced API
2017-06-23 09:50:47 -07:00
Yann Collet
ecb0f46866
add controls over streaming buffers
2017-06-21 17:25:01 -07:00
Yann Collet
204b6b7ef6
fixed streaming buffered allocation with CDict compression
2017-06-21 15:13:00 -07:00
Yann Collet
83095970e6
free cdictLocal faster, suggested by @terrelln
2017-06-21 12:26:40 -07:00
Yann Collet
7bd1a2900e
added ZSTD_dictMode_e to control dictionary loading mode
2017-06-21 11:50:33 -07:00
Yann Collet
e51d51bdf7
fixed memcpy() overlap
2017-06-20 17:44:55 -07:00
Yann Collet
466f92eaa6
removed one useless streaming compression stage, detected by @terrelln
2017-06-20 16:25:29 -07:00
Yann Collet
c3bce24ef4
fixed potential dangling pointer, detected by @terrelln
2017-06-20 16:09:11 -07:00
Yann Collet
b44ab82f7a
ensure new ZSTD_strategy starts at value 1
2017-06-20 14:11:49 -07:00
Yann Collet
c08e649e95
first implementation of bench.c with new API ZSTD_compress_generic()
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Doesn't speed optimize this buffer-to-buffer scenario yet.
Still internally defers to streaming implementation.
Also : fixed a long standing bug in ZSTDMT streaming API.
2017-06-19 18:25:35 -07:00
Nick Terrell
55f9cd4942
[libzstd] Fix UBSAN failure
2017-06-19 15:12:28 -07:00
Yann Collet
bf99150be3
update new api presentation in zstd.h and manual
2017-06-19 12:56:25 -07:00
Yann Collet
d7a3bffba9
new api : setting compression parameters is refused if a dictionary is already loaded
2017-06-19 11:53:01 -07:00
Yann Collet
381e66cfbd
added ZSTD_clampCParams()
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now ZSTD_adjustCParams() is always successful,
it always produces a valid CParams
2017-06-16 17:34:54 -07:00
Yann Collet
aee916e37c
fixed +/-1 error for pledgedSrcSizePlusOne
2017-06-16 17:02:35 -07:00
Yann Collet
d3de3d51a3
fix attempt 2 : Visual sign conversion warning
2017-06-16 16:51:33 -07:00
Yann Collet
944be54774
fixed attempt : minor Visual sign conversion warning
2017-06-16 14:05:01 -07:00
Yann Collet
b26728c9c8
added ZSTD_startNewCompression()
2017-06-16 14:00:46 -07:00
Yann Collet
a0ba849fe6
changed frameContentSize field to pledgedSrcSizePlusOne
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pledgedSrcSize is proper : it's a promise, not yet fulfilled.
It will be controlled at the end.
PlusOne is meant to have 0 (default) == unknown
2017-06-16 13:29:17 -07:00
Yann Collet
2cf7755da7
fix : pledgedSrcSize correctly reset to unknown in "continue" mode
2017-06-16 12:34:41 -07:00
Yann Collet
9e73f2f320
fix : correctly reset pledgedSrcSize to unknown status
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when starting a new compression with an existing context
2017-06-16 12:24:01 -07:00
Yann Collet
33873f0e74
fixed : new advanced AIP : setting nbThreads to the same value > 1
2017-06-16 12:04:21 -07:00
Yann Collet
559ee82e90
fixed : calling ZSTD_compress_generic() to end-flush a stream in multiple steps
2017-06-16 11:58:21 -07:00
Yann Collet
bd18c885a3
added ZSTD_CCtx_reset
2017-06-16 10:17:50 -07:00
