Yann Collet
886720442f
initial implementation (incomplete)
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needs to take care of long lengths > 65535
2025-01-15 17:11:27 -08:00
Yann Collet
04a2a0219c
update type names
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naming convention: Type names should start with a Capital letter (after the prefix)
2024-12-29 14:25:33 -08:00
Yann Collet
a2ff6ea784
improve ZSTD_getFrameHeader on skippable frames
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now reports:
- the header size
- the magic variant (within @dictID field)
2024-12-29 12:26:04 -08:00
Yann Collet
f8a2b352d6
clarify doc on Frame-level methods when invoked on a skippable frame
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following discussion at #4226
2024-12-29 02:41:09 -08:00
Yann Collet
72ce56b527
fixed another invalid scenario
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compressSequencesAndLiterals() doesn't support sequence validation
2024-12-23 21:15:50 -08:00
Yann Collet
7b294caf46
add one valid test case
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ZSTD_compressSequencesAndLiterals() may return a specific error code
when data to compress is non-compressible.
2024-12-23 19:43:17 -08:00
Yann Collet
f8725e80cc
added fuzzer test for compressSequencesAndLiterals()
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piggy-backing onto existing compressSequences() fuzzer test
2024-12-23 18:42:51 -08:00
Yann Collet
b7a9e69d8d
added parameter litCapacity
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to ZSTD_compressSequencesAndLiterals()
to enforce the litCapacity >= litSize+8 condition.
2024-12-20 10:37:01 -08:00
Yann Collet
52a9bc6fca
fixed minor error in preparation of one fullbench scenario
2024-12-20 10:37:00 -08:00
Yann Collet
ab0f1798e8
ensure that srcSize is controlled
2024-12-20 10:37:00 -08:00
Yann Collet
a80f55f47d
added a test for ZSTD_compressSequencesAndLiterals
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checks that srcSize is present in the frame header
and bounds the window size.
2024-12-20 10:37:00 -08:00
Yann Collet
0a54f6f288
ZSTD_compressSequencesAndLiterals requires srcSize as parameter
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this makes it possible to adjust windowSize to its tightest.
2024-12-20 10:37:00 -08:00
Yann Collet
ad023b392f
fixed minor error in one benchmark scenario
2024-12-20 10:37:00 -08:00
Yann Collet
12c47d3262
improved speed of the Sequences converter
2024-12-20 10:37:00 -08:00
Yann Collet
95ad9e47ff
added benchmark for ZSTD_convertBlockSequences_wBlockDelim()
2024-12-20 10:37:00 -08:00
Yann Collet
61ac8311e0
attempt to silence Visual Studio warning about fopen()
2024-12-20 10:37:00 -08:00
Yann Collet
f617e86b71
fixed incorrect assert
2024-12-20 10:37:00 -08:00
Yann Collet
f0d0d95234
added tests
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check that ZSTD_compressAndLiterals() also controls that the `srcSize` field is exact.
2024-12-20 10:37:00 -08:00
Yann Collet
31b5ef2539
ZSTD_compressSequencesAndLiterals() now supports multi-blocks frames.
2024-12-20 10:36:59 -08:00
Yann Collet
5164d44dab
change advanced parameter name: ZSTD_c_repcodeResolution
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and updated its documentation.
Note: older name ZSTD_c_searchForExternalRepcodes remains supported via #define
2024-12-20 10:36:59 -08:00
Yann Collet
f176514467
minor doc update
2024-12-20 10:36:59 -08:00
Yann Collet
f281497aef
fullbench: new scenario: compressSequencesAndLiterals()
2024-12-20 10:36:59 -08:00
Yann Collet
ac05ea89a5
fullbench: switch default generator to lorem ipsum
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which creates more "realistic" scenarios than former compressible noise.
The legacy data generator remains accessible,
it is triggered when requesting an explicit compressibility factor (-P#).
2024-12-20 10:36:59 -08:00
Yann Collet
8ab04097ed
add the compressSequences() benchmark scenario
2024-12-20 10:36:59 -08:00
Yann Collet
c050ae4fb8
fullbench: preparation functions are now in charge of allocating buffers
2024-12-20 10:36:59 -08:00
Yann Collet
8b7e1b795d
minor variable renaming
2024-12-20 10:36:59 -08:00
Yann Collet
c540976a4b
minor: test reordering
2024-12-20 10:36:59 -08:00
Yann Collet
4c097b4939
refactor fullbench
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to make it easier to add new scenarios
2024-12-20 10:36:58 -08:00
Yann Collet
09964c6276
prepare fullbench for a refactor
2024-12-20 10:36:58 -08:00
Yann Collet
0b013b2688
added unit tests to ZSTD_compressSequencesAndLiterals()
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seems to work as expected,
correctly control that `litSize` and `srcSize` are exactly correct.
2024-12-20 10:36:58 -08:00
Yann Collet
c97522f7fb
codemod: ZSTD_sequenceFormat_e -> ZSTD_SequenceFormat_e
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since it's a type name.
Note: in contrast with previous names, this one is on the Public API side.
So there is a #define, so that existing programs using ZSTD_sequenceFormat_e still work.
2024-12-20 10:36:56 -08:00
Yann Collet
477a01067f
codemod: symbolEncodingType_e -> SymbolEncodingType_e
2024-12-20 10:36:56 -08:00
Yann Collet
a2245721ca
codemod: seqStore_t -> SeqStore_t
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same idea, SeqStore_t is a type name, it should start with a Capital letter.
2024-12-20 10:36:55 -08:00
Yann Collet
9671813375
codemod: seqDef -> SeqDef
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SeqDef is a type name, so it should start with a Capital letter.
It's an internal symbol, no impact on public API.
2024-12-20 10:36:55 -08:00
Diego Nieto Cid
4a4786bef0
tests: fix non-regular file test on GNU/Hurd
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Since commit b21b03ca6 [1] the behaviour of writes to /dev/zero has been
fixed and now the non-regular file removal test no longer needs to be
done on /dev/random (which no longer works as random is not writable now).
[1] https://git.savannah.gnu.org/cgit/hurd/hurd.git/commit/?id=b21b03ca624b89caeedfe58430cea4b40317d39f
2024-12-10 10:30:52 -03:00
Yann Collet
bbaba45589
change experimental parameter name
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from ZSTD_c_useBlockSplitter to ZSTD_c_splitAfterSequences.
2024-10-31 13:43:40 -07:00
Yann Collet
4f93206d62
changed variable name to ZSTD_c_blockSplitterLevel
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suggested by @terrelln
2024-10-29 11:12:09 -07:00
Yann Collet
f593ccda04
removed trace left over
2024-10-28 16:57:01 -07:00
Yann Collet
37706a677c
added a test
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test both that the new parameter works as intended,
and that the over-split protection works as intended
2024-10-28 16:31:15 -07:00
Yann Collet
4e1a87976f
update regression results
2024-10-25 16:33:00 -07:00
Yann Collet
c63b5d2294
update regression results
2024-10-24 14:47:55 -07:00
Yann Collet
ea082692aa
added block splitter variant for greedy & lazy (levels 5 to 7)
2024-10-24 13:27:01 -07:00
Yann Collet
70c77d20d6
update regression results
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first block is no longer splitted since adding the @savings over-split protection
2024-10-24 11:43:16 -07:00
Yann Collet
bbda1acf85
update regression results
2024-10-23 15:56:56 -07:00
Yann Collet
d2eeed53dc
updated compression results
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due to integration of `sample5` strategy, leading to better compression ratios on a range of levels
2024-10-23 11:50:57 -07:00
Yann Collet
dac26eaeac
updated regression test results
2024-10-23 11:50:57 -07:00
Yann Collet
433f4598ad
fixed minor conversion warnings on Visual
2024-10-23 11:50:56 -07:00
Yann Collet
80a912dec1
fixed zstreamtest
2024-10-23 11:50:56 -07:00
Yann Collet
f83ed087f6
fixed RLE detection test
2024-10-23 11:50:56 -07:00
Yann Collet
41d870fbbf
updated regression tests results
2024-10-17 11:06:26 -07:00
