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* new level 10Yann Collet2017-12-201-1/+1
| | | | | | | | | | | | lz4opt is only competitive vs lz4hc level 10. Below that level, it doesn't match the speed / compression effectiveness of regular hc parser. This patch propose to extend lz4opt to levels 10-12. The new level 10 tend to compress a bit better and a bit faster than previous one (mileage vary depending on file) The only downside is that `limitedDestSize` mode is now limited to max level 9 (vs 10), since it's only compatible with regular HC parser. (Note : I suspect it's possible to convert lz4opt to support it too, but haven't spent time into it).
* minor comment editYann Collet2017-11-031-22/+19
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* unified HC levelsYann Collet2017-11-031-2/+1
| | | | | LZ4_setCompressionLevel() can be users accross the whole range of HC levels No more transition issue between Optimal and HC modes
* removed ctx->searchNumYann Collet2017-11-031-3/+1
| | | | | nbSearches now transmitted directly as function parameter easier to track and debug
* LZ4_compress_HC_continue_destSize() now compatible with optimal parserYann Collet2017-11-031-2/+2
| | | | levels 11+
* removed code and reference to binary tree match finderYann Collet2017-11-031-2/+2
| | | | reduced size of LZ4HC state
* lz4opt: added hash chain searchYann Collet2017-10-211-1/+1
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* dictionary compression correctly uses compression levelYann Collet2017-08-101-7/+16
| | | | Not obvious : copying the state was copying cdict's compression level
* updated NEWSYann Collet2017-06-121-2/+2
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* liz4hc.h: fix a comment: LZ4HC_MAX_CLEVEL -> LZ4HC_CLEVEL_MAXAlexey Tourbin2017-04-291-2/+2
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* Export deprecated symbols declared in lz4hc.hDmitry V. Levin2017-03-241-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 25b243588585b06a2d947372284cbfe00da930e9 exported deprecated symbols declared in lz4.h by marking all LZ4_DEPRECATED functions with LZ4LIB_API attribute. This change does the same with functions declared in lz4hc.h file, thus extending the export to lz4hc.h. As result, the following 17 deprecated functions are exported again: LZ4_compressHC LZ4_compressHC2 LZ4_compressHC2_continue LZ4_compressHC2_limitedOutput LZ4_compressHC2_limitedOutput_continue LZ4_compressHC2_limitedOutput_withStateHC LZ4_compressHC2_withStateHC LZ4_compressHC_continue LZ4_compressHC_limitedOutput LZ4_compressHC_limitedOutput_continue LZ4_compressHC_limitedOutput_withStateHC LZ4_compressHC_withStateHC LZ4_createHC LZ4_freeHC LZ4_resetStreamStateHC LZ4_sizeofStreamStateHC LZ4_slideInputBufferHC
* added `extern C` for lz4.h static sectionYann Collet2017-03-171-1/+1
| | | | should make the file more compatible with C++ compiler, such as Visual or g++
* LZ4_compress_HC_continue_destSize() works as intended up to level 10Yann Collet2017-03-161-0/+2
| | | | | It's incompatible with btopt though, so cLevel >= 11 feature much reduced performance (degraded mode)
* LZ4_compress_HC_destSize() uses LZ4HC_compress_generic() code pathYann Collet2017-03-161-10/+10
| | | | | Limits compression level to 10, to remain compatible with Hash Chain.
* created LZ4_HC_STATIC_LINKING_ONLY sectionYann Collet2017-03-161-10/+47
| | | | where are exposed new prototypes *_destSize()
* lz4hc: Add LZ4_compressHC_destSize and LZ4_compress_HC_continue_destSizeremittor2017-03-081-0/+2
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* removed nextToUpdateBTPrzemyslaw Skibinski2016-12-281-2/+0
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* updated a few macros namesYann Collet2016-12-221-4/+4
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* tree update dependent from compression levelPrzemyslaw Skibinski2016-12-091-0/+1
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* fullUpdate as a parameterPrzemyslaw Skibinski2016-12-091-0/+2
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* slightly improved lz4opt.hPrzemyslaw Skibinski2016-12-081-1/+1
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* fixed LZ4_STREAMHCSIZEPrzemyslaw Skibinski2016-12-071-1/+1
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* LZ4HC_DICTIONARY_LOGSIZE 17Przemyslaw Skibinski2016-12-071-4/+4
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* improved ratioPrzemyslaw Skibinski2016-12-071-1/+1
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* 15-bit LZ4HC_HASH_LOGPrzemyslaw Skibinski2016-12-071-1/+1
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* LZ4HC_MAX_CLEVEL = 12Przemyslaw Skibinski2016-12-071-2/+2
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* 17-bit LZ4HC_MAXDPrzemyslaw Skibinski2016-12-061-2/+2
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* introduced LZ4HC_compress_hashChainPrzemyslaw Skibinski2016-12-061-3/+5
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* fixed nameless union warningsYann Collet2016-11-141-4/+2
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* made lz4hc explicitly dependent on lz4Yann Collet2016-11-121-49/+17
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* fixed __GNUC__ macroYann Collet2016-11-121-2/+2
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* enabled deprecation warnings on remaining obsolete functionsYann Collet2016-11-121-14/+14
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* update code commentsYann Collet2016-11-121-110/+100
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* Expose internal types to remove strict aliasingNick Terrell2016-11-111-1/+59
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* removed LZ4_DLL_EXPORT=1 (2)Przemyslaw Skibinski2016-11-091-6/+4
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* updated links to LZ4 repositoryPrzemyslaw Skibinski2016-11-031-1/+1
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* Use different prefix for each file to avoid conflictKouhei Sutou2016-09-231-18/+18
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* Add LZ4LIB_APIKouhei Sutou2016-09-221-15/+32
| | | | | | | | | | | | It's based on Zstandard's ZSTDLIB_API. See also: https://github.com/Cyan4973/lz4/issues/216#issuecomment-226245432 Deprecated functions aren't LZ4LIB_API targets. Because we don't need to export deprecated functions from now. There are same LZ4LIB_API definitions in each header files instead of including a common header file because LZ4_DEPRECATED is defined so.
* -b# and -e# options from zstdinikep2016-09-021-2/+6
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* stronger compilation flagsYann Collet2016-06-291-4/+4
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* modified : some more deprecated functions from lz4hc.h generate warningsYann Collet2016-06-291-28/+31
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* Added compilation flag -Wcast-qualYann Collet2015-05-061-2/+2
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* Updated lz4hc APIYann Collet2015-05-031-52/+55
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* Fix LZ4_DEPRECATED() in lz4hc.hTakayuki MATSUOKA2015-04-151-1/+1
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* Replace GCC_VERSION with LZ4_GCC_VERSIONTakayuki MATSUOKA2015-04-141-3/+3
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* Add LZ4 prefix to deprecation macrosTakayuki MATSUOKA2015-04-121-16/+16
| | | | | | | Replace the following macros: - "_DEPRECATE_WARNING_DEFBLOCK" to "LZ4_DEPRECATE_WARNING_DEFBLOCK" - "DEPRECATED" to "LZ4_DEPRECATED"
* Extended obsolete warning messages to lz4hcYann Collet2015-04-111-7/+28
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* Update lz4hc API : LZ4_compressHC_safe()Yann Collet2015-04-111-53/+38
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* Fixed cast-align warnings on 32-bitsYann Collet2015-03-251-5/+11
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* Improved sparse file supportYann Collet2015-03-131-3/+3
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