diff options
Diffstat (limited to 'lib/lz4hc.h')
| -rw-r--r-- | lib/lz4hc.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/lib/lz4hc.h b/lib/lz4hc.h index d8ac3c0..1036fd0 100644 --- a/lib/lz4hc.h +++ b/lib/lz4hc.h @@ -44,9 +44,10 @@ extern "C" { /* --- Useful constants --- */ -#define LZ4HC_MIN_CLEVEL 3 -#define LZ4HC_DEFAULT_CLEVEL 9 -#define LZ4HC_MAX_CLEVEL 16 +#define LZ4HC_CLEVEL_MIN 3 +#define LZ4HC_CLEVEL_DEFAULT 9 +#define LZ4HC_CLEVEL_OPT_MIN 11 +#define LZ4HC_CLEVEL_MAX 12 /*-************************************ @@ -58,7 +59,7 @@ extern "C" { * Compression is guaranteed to succeed if `dstCapacity >= LZ4_compressBound(srcSize)` (see "lz4.h") * Max supported `srcSize` value is LZ4_MAX_INPUT_SIZE (see "lz4.h") * `compressionLevel` : Recommended values are between 4 and 9, although any value between 1 and LZ4HC_MAX_CLEVEL will work. - * Values >LZ4HC_MAX_CLEVEL behave the same as 16. + * Values >LZ4HC_MAX_CLEVEL behave the same as LZ4HC_MAX_CLEVEL. * @return : the number of bytes written into 'dst' * or 0 if compression fails. */ @@ -130,11 +131,11 @@ LZ4LIB_API int LZ4_saveDictHC (LZ4_streamHC_t* streamHCPtr, char* safeBuffer, in * They are exposed to allow static allocation of `LZ4_streamHC_t`. * Using these definitions makes the code vulnerable to potential API break when upgrading LZ4 **************************************/ -#define LZ4HC_DICTIONARY_LOGSIZE 16 +#define LZ4HC_DICTIONARY_LOGSIZE 17 #define LZ4HC_MAXD (1<<LZ4HC_DICTIONARY_LOGSIZE) #define LZ4HC_MAXD_MASK (LZ4HC_MAXD - 1) -#define LZ4HC_HASH_LOG (LZ4HC_DICTIONARY_LOGSIZE-1) +#define LZ4HC_HASH_LOG 15 #define LZ4HC_HASHTABLESIZE (1 << LZ4HC_HASH_LOG) #define LZ4HC_HASH_MASK (LZ4HC_HASHTABLESIZE - 1) @@ -153,6 +154,7 @@ typedef struct uint32_t dictLimit; /* below that point, need extDict */ uint32_t lowLimit; /* below that point, no more dict */ uint32_t nextToUpdate; /* index from which to continue dictionary update */ + uint32_t searchNum; /* only for optimal parser */ uint32_t compressionLevel; } LZ4HC_CCtx_internal; @@ -169,12 +171,13 @@ typedef struct unsigned int dictLimit; /* below that point, need extDict */ unsigned int lowLimit; /* below that point, no more dict */ unsigned int nextToUpdate; /* index from which to continue dictionary update */ + unsigned int searchNum; /* only for optimal parser */ unsigned int compressionLevel; } LZ4HC_CCtx_internal; #endif -#define LZ4_STREAMHCSIZE 262192 +#define LZ4_STREAMHCSIZE (4*LZ4HC_HASHTABLESIZE + 2*LZ4HC_MAXD + 56) /* 393268 */ #define LZ4_STREAMHCSIZE_SIZET (LZ4_STREAMHCSIZE / sizeof(size_t)) union LZ4_streamHC_u { size_t table[LZ4_STREAMHCSIZE_SIZET]; |