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first version of doubleFast

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This commit is contained in:
Yann Collet
2016-07-12 09:47:31 +02:00
parent d158c35e9f
commit 45dc35628c
3 changed files with 298 additions and 11 deletions
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lib/common/zstd.h
+3 -3
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@@ -230,7 +230,7 @@ static const size_t ZSTD_skippableHeaderSize = 8; /* magic number + skippable f
/*--- Types ---*/
typedef enum { ZSTD_fast, ZSTD_greedy, ZSTD_lazy, ZSTD_lazy2, ZSTD_btlazy2, ZSTD_btopt } ZSTD_strategy; /*< from faster to stronger */
typedef enum { ZSTD_fast, ZSTD_dfast, ZSTD_greedy, ZSTD_lazy, ZSTD_lazy2, ZSTD_btlazy2, ZSTD_btopt } ZSTD_strategy; /*< from faster to stronger */
typedef struct {
unsigned windowLog; /*< largest match distance : larger == more compression, more memory needed during decompression */
@@ -325,9 +325,9 @@ ZSTDLIB_API ZSTD_DCtx* ZSTD_createDCtx_advanced(ZSTD_customMem customMem);
ZSTDLIB_API size_t ZSTD_sizeofDCtx(const ZSTD_DCtx* dctx);
/* ****************************************************************
/* ******************************************************************
* Streaming functions (direct mode - synchronous and buffer-less)
******************************************************************/
********************************************************************/
ZSTDLIB_API size_t ZSTD_compressBegin(ZSTD_CCtx* cctx, int compressionLevel);
ZSTDLIB_API size_t ZSTD_compressBegin_usingDict(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, int compressionLevel);
ZSTDLIB_API size_t ZSTD_compressBegin_advanced(ZSTD_CCtx* cctx, const void* dict, size_t dictSize, ZSTD_parameters params, unsigned long long pledgedSrcSize);