Commit Graph

114 Commits

Author SHA1 Message Date
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
b7372933b8 implemented ZSTD_refPrefix() 2017-06-27 15:49:12 -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
Yann Collet
fecc721fd9 added parameter ZSTD_p_refDictContent 2017-06-27 11:46:39 -07:00
Yann Collet
dde10b23fe refactored ZSTD_estimateDStreamSize()
now uses windowSize as argument.
Also : created ZSTD_estimateDStreamSize_fromFrame()
2017-06-26 17:44:26 -07:00
Yann Collet
09ae03a570 ZSTD_estimateCDictSize_advanced()
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()
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
7bd1a2900e added ZSTD_dictMode_e to control dictionary loading mode 2017-06-21 11:50:33 -07:00
Yann Collet
c08e649e95 first implementation of bench.c with new API ZSTD_compress_generic()
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
Yann Collet
bf99150be3 update new api presentation in zstd.h and manual 2017-06-19 12:56:25 -07:00
Yann Collet
c7dcf0f379 updated manual 2017-06-19 12:03:25 -07:00
Yann Collet
01743a36e7 fuzzer tests for new API 2017-06-16 17:56:41 -07:00
Yann Collet
f35e2de61c linked newAPI to ZSTDMT 2017-06-05 18:32:48 -07:00
Yann Collet
8c910d2097 updated ZSTDMT streaming API
ZSTDMT streaming API is now similar
and has same capabilites as single-thread streaming API.
It makes it easier to blend them together.
2017-06-03 01:15:02 -07:00
Yann Collet
58e8d793e1 made debug definitions common within zstd_internal.h 2017-06-02 18:20:48 -07:00
Yann Collet
deee6e523f expose ZSTD_compress_generic_simpleArgs()
which is a binding towards ZSTD_compress_generic()
using only integral types for arguments.
2017-05-30 17:42:00 -07:00
Yann Collet
44e45e8423 added ZSTDMT_createCCtx_advanced()
make it possible to use custom allocators
2017-05-30 16:12:06 -07:00
Yann Collet
f45ca527a1 Merge branch 'advancedAPI2' of github.com:facebook/zstd into advancedAPI2 2017-05-30 10:02:03 -07:00
Yann Collet
b8136f019a static dctx is incompatible with legacy support
documented, and runtime tested
2017-05-27 00:03:08 -07:00
Yann Collet
7028cbd7fd fixed a few code comments : ZSTD_getFrameParams => ZSTD_getFrameHeader 2017-05-25 18:29:08 -07:00
Yann Collet
cdf7e82222 Added ZSTD_initStaticCDict() 2017-05-25 18:05:49 -07:00
Yann Collet
57827f906f added ZSTD_initStaticDDict() 2017-05-25 15:44:06 -07:00
Yann Collet
25989e361c updated ZSTD_estimate?DictSize() to pass parameter byReference
resulting ?Dict object is smaller when created byReference.
Seems better than a documentation note.
2017-05-25 15:07:37 -07:00
Yann Collet
0fdc71c3dc added ZSTD_initStaticDCtx() 2017-05-24 17:41:41 -07:00
Yann Collet
c7fe262dc9 added ZSTD_initStaticCCtx()
makes it possible to statically or externally allocate CCtx.
static CCtx will only use provided memory area,
it will never resize nor malloc.
2017-05-23 13:20:41 -07:00
Yann Collet
b0739bcf8f simplified reset by removing full-reset policy
this was meant to be applied prior to dictionary loading.
But effectively, it seems redundant with later loading stage,
so it can be skipped safely.
2017-05-22 17:45:15 -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
Yann Collet
6d4fef36de Added ZSTD_compress_generic()
Used in fileio.c (zstd cli).
Need to set macro ZSTD_NEWAPI to trigger it.
2017-05-17 18:36:15 -07:00
Yann Collet
a5ffe3d370 pushed enum values for strategy by one (ZSTD_fast==1)
this makes it possible to use `0` to mean:
"do not change strategy"
2017-05-12 16:29:19 -07:00
Yann Collet
add66f816d changed macro LOADCPARAMS by static function ZSTD_cLevelToCParams()
for improved compiler checks.
Also : ensure most parameters can receive value "0"
to mean "do not change".
2017-05-12 16:01:15 -07:00
Yann Collet
b0edb7fb0e added ZSTD_CCtx_setParameter() 2017-05-12 15:31:53 -07:00
Yann Collet
db8e21d5a0 made ZSTD_compress_generic() definition accessible
note that the implementation is not done yet.
2017-05-12 13:46:49 -07:00
Yann Collet
33eb7ac6b6 updated Advanced API proposal
only declarations in zstd.h
2017-05-12 12:36:11 -07:00
Nick Terrell
5f2c7213c7 Merge remote-tracking branch 'upstream/dev' into btopt
* upstream/dev: (305 commits)
  added test for ZSTD_estimateCStreamSize()
  changed variable name, for clarity
  fixed ZSTD_estimateCStreamSize()
  shortened ZSTD_createCStream_Advanced()
  fixed symbols test
  added ZSTD_estimateDStreamSize()
  changed name frameParams into frameHeader
  regroup memory usage function declarations
  separated ZSTD_estimateCStreamSize() from ZSTD_estimateCCtxSize()
  bumped version number
  added ZSTD_estimateCDictSize() and ZSTD_estimateDDictSize()
  Updated ZSTD_freeCCtx()
  updated ZSTD_estimateCCtxSize()
  Updated ZSTD_sizeof_CCtx()
  merged CCtx and CStream as a single same object
  cli : -d and -t do not stop after a failed decompression
  added dev branch CircleCI badge
  added dev branch Appveyor badge
  keep dev branch status only
  creates a binary archive without the `programs` directory
  ...
2017-05-10 16:49:58 -07:00
Yann Collet
cef02d9317 changed variable name, for clarity
fhiPtr -> zfhPtr
https://github.com/facebook/zstd/pull/689#discussion_r115638676
2017-05-10 11:14:08 -07:00
Yann Collet
f16f4497ca added ZSTD_estimateDStreamSize() 2017-05-09 16:18:17 -07:00
Yann Collet
542c9dfcf8 changed name frameParams into frameHeader
ZSTD_frameParams => ZSTD_frameHeader
ZSTD_getFrameParams() -> ZSTD_getFrameHeader()

The new naming is more distinctive from ZSTD_frameParameters,
which is used during compression.

ZSTD_frameHeader is clearer in its intention to described frame header content.
It also implies we are decoding a ZSTD frame, hence we are at decoding stage.
2017-05-09 15:46:07 -07:00
Yann Collet
5a36c069e7 regroup memory usage function declarations
in a single paragraph in zstd.h, for clarity
2017-05-09 15:11:30 -07:00
Yann Collet
fa8dadb294 separated ZSTD_estimateCStreamSize() from ZSTD_estimateCCtxSize()
for clarity
2017-05-08 18:24:16 -07:00
Yann Collet
a1d6704d7f added ZSTD_estimateCDictSize() and ZSTD_estimateDDictSize()
it complements ZSTD_estimateCCtxSize()
for the special case of ZSTD_initCStream_usingDict()
2017-05-08 17:51:49 -07:00
Yann Collet
fc5145955a updated ZSTD_estimateCCtxSize()
added a parameter streaming,
to estimate memory allocation size
when the CCtx is used for streaming (CStream).

Note : this function is not able to estimate
memory cost of a potential internal CDict
which can only happen when starting with ZSTD_initCStream_usingDict()
2017-05-08 17:07:59 -07:00
Yann Collet
0be6fd3429 merged CCtx and CStream as a single same object
To be changed : ZSTD_sizeof_CCtx(), ZSTD_estimateCCtxSize()
2017-05-08 16:08:01 -07:00
Yann Collet
202082f285 sync bitstream from FSE project
add assert into unsafe *_fast() variants
2017-04-28 17:00:31 -07:00
Yann Collet
a51cab6e68 Merge pull request #678 from facebook/apiChange
Breaking API Change around CDict
2017-04-28 10:02:45 -07:00
Yann Collet
8b669535f8 bumped version number to v1.2.0 2017-04-27 12:50:20 -07:00
Yann Collet
77bf59ef50 added ZSTD_initCStream_usingCDict_advanced() 2017-04-27 11:43:04 -07:00
Yann Collet
f4bd857d81 created ZSTD_compress_usingCDict_advanced() 2017-04-27 11:31:55 -07:00
Yann Collet
31533bacce Changed ZSTD_createCDict_advanced()
It now only uses compressionParameters as argument.
It produces many changes throughout user code,
though hopefully they tend to be simple :
just provide the cParams part from existing ZSTD_parameters.

Some programs might depend on ZSTD_createCDict_advanced() to pass frame parameters.
This change will force them to revisit this strategy and fix it,
since frame parameters are effectively silently ignored in current version.
2017-04-27 00:29:04 -07:00
Yann Collet
768df129d2 changed ZSTD_compressBegin_usingCDict()
No longer takes `pledgedSrcSize` as argument
this is in line with similar functions ZSTD_compress_usingCDict()
and ZSTD_initCStream_usingCDict().
2017-04-26 15:42:10 -07:00
Yann Collet
e42afbc6fa Comply with suggested comments by @terrelln
created FSE_CTABLE_SIZE() and FSE_DTABLE_SIZE()
2017-04-26 11:39:35 -07:00
Yann Collet
715b9aa113 created ZSTD_compressBegin_usingCDict_advanced() 2017-04-18 13:55:53 -07:00
Yann Collet
4b987ad8ce Introduce ZSTD_initCStream_internal()
This is now the regroup point for ZSTD_initCStream*() functions

ZSTD_initCStream_advanced() now properly checks for parameters validity.

Also : added <assert.h> usage inside zstd_compress.c
Needs ZSTD_DEBUG=1 macro to be triggered.
Will be triggered by default from `tests` directory
2017-04-10 17:50:44 -07:00
Yann Collet
2e2e78de47 removed unnecessary restriction on minmatchLength
it's now transparently translated to nearest value when unsupported
(7->6) (3->4)
2017-03-29 16:02:47 -07:00
Sean Purcell
dec2b96536 Add functions missing from manual, and fix parameter alignment 2017-03-14 11:24:09 -07:00
Nick Terrell
eeb31eed39 s/ZSTD_btopt2/ZSTD_btultra/g 2017-03-09 11:44:25 -08:00
Yann Collet
14312d833e zstdmt : fix : loading prefix from previous segments
There used to be a (very small) chance that
loading prefix from previous segment
would be confused with a real zstd dictionary.
For that to happen, the prefix needs to start
with the same value as dictionary magic.
That's 1 chance in 4 billions if all values have equal probability.
But in fact, since some values are more common (0x00000000 for example)
others are less common, and dictionary magic was selected to be one of them,
so probabilities are likely even lower.

Anyway, this risk is no down to zero
by adding a new CCtx parameter : ZSTD_p_forceRawDict

Current parameter policy : the parameter "stick" to its CCtx,
so any dictionary loading after ZSTD_p_forceRawDict is set
will be loaded in "raw" ("content only") mode,
even if CCtx is re-used multiple times with multiple different dictionary.
It's up to the user to reset this value differently if it needs so.
2017-02-23 23:42:12 -08:00
Yann Collet
831b4890ce minor tests/Makefile refactoring
and update of zstd_manual,html
2017-02-23 23:09:10 -08:00
Yann Collet
7757577341 added manual target in root Makefile
`manual` target is added to `all` target
2017-02-22 01:10:43 -08:00
Yann Collet
dc9931205a updated manual 2016-12-14 14:53:47 +01:00
Przemyslaw Skibinski
4da53219a0 zstd Manual updated to 1.1.2 2016-12-07 11:18:40 +01:00
Nick Terrell
d82efd8a70 ZSTD_compress_usingDict() when dict gets loaded
Specify that when `dict == NULL || dictSize < 8` no dictionary
gets loaded.
Also add some periods.
2016-11-02 18:07:16 -07:00
Przemyslaw Skibinski
1fd5b45c6d updated doc/zstd_manual.html 2016-10-31 10:44:44 +01:00
Przemyslaw Skibinski
86d9424c81 added doc\zstd_manual.html 2016-10-24 16:07:53 +02:00