diff options
Diffstat (limited to 'lz4.h')
| -rw-r--r-- | lz4.h | 41 |
1 files changed, 14 insertions, 27 deletions
@@ -48,7 +48,7 @@ extern "C" { **************************************/ #define LZ4_VERSION_MAJOR 1 /* for major interface/format changes */ #define LZ4_VERSION_MINOR 4 /* for minor interface/format changes */ -#define LZ4_VERSION_RELEASE 0 /* for tweaks, bug-fixes, or development */ +#define LZ4_VERSION_RELEASE 1 /* for tweaks, bug-fixes, or development */ #define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR *100*100 + LZ4_VERSION_MINOR *100 + LZ4_VERSION_RELEASE) int LZ4_versionNumber (void); @@ -169,17 +169,17 @@ int LZ4_decompress_safe_partial (const char* source, char* dest, int compressedS /*********************************************** - Experimental Streaming Compression Functions + Streaming Compression Functions ***********************************************/ -#define LZ4_STREAMSIZE_U32 ((1 << (LZ4_MEMORY_USAGE-2)) + 8) -#define LZ4_STREAMSIZE (LZ4_STREAMSIZE_U32 * sizeof(unsigned int)) +#define LZ4_STREAMSIZE_U64 ((1 << (LZ4_MEMORY_USAGE-3)) + 4) +#define LZ4_STREAMSIZE (LZ4_STREAMSIZE_U64 * sizeof(long long)) /* * LZ4_stream_t * information structure to track an LZ4 stream. * important : init this structure content before first use ! */ -typedef struct { unsigned int table[LZ4_STREAMSIZE_U32]; } LZ4_stream_t; +typedef struct { long long table[LZ4_STREAMSIZE_U64]; } LZ4_stream_t; /* * LZ4_resetStream @@ -231,20 +231,17 @@ int LZ4_saveDict (LZ4_stream_t* LZ4_streamPtr, char* safeBuffer, int dictSize); /************************************************ - Experimental Streaming Decompression Functions + Streaming Decompression Functions ************************************************/ -#define LZ4_STREAMDECODESIZE_U32 8 -#define LZ4_STREAMDECODESIZE (LZ4_STREAMDECODESIZE_U32 * sizeof(unsigned int)) +#define LZ4_STREAMDECODESIZE_U64 4 +#define LZ4_STREAMDECODESIZE (LZ4_STREAMDECODESIZE_U64 * sizeof(unsigned long long)) +typedef struct { unsigned long long table[LZ4_STREAMDECODESIZE_U64]; } LZ4_streamDecode_t; /* * LZ4_streamDecode_t * information structure to track an LZ4 stream. - * important : init this structure content using LZ4_setStreamDecode or memset() before first use ! - */ -typedef struct { unsigned int table[LZ4_STREAMDECODESIZE_U32]; } LZ4_streamDecode_t; - -/* - * If you prefer dynamic allocation methods, + * init this structure content using LZ4_setStreamDecode or memset() before first use ! + * If you prefer dynamic allocation methods : * LZ4_createStreamDecode will allocate and initialize an LZ4_streamDecode_t structure * LZ4_freeStreamDecode releases its memory. */ @@ -254,9 +251,7 @@ int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream); /* * LZ4_setStreamDecode * Use this function to instruct where to find the dictionary. - * This function can be used to specify a static dictionary, - * or to instruct where to find some previously decoded data saved into a different memory space. - * Setting a size of 0 is allowed (same effect as no dictionary, same effect as reset). + * Setting a size of 0 is allowed (same effect as reset). * Return : 1 if OK, 0 if error */ int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize); @@ -277,7 +272,7 @@ Advanced decoding functions : *_usingDict() : These decoding functions work the same as a combination of LZ4_setDictDecode() followed by LZ4_decompress_x_continue() - They don't use nor update an LZ4_streamDecode_t structure. + They are stand-alone and don't use nor update an LZ4_streamDecode_t structure. */ int LZ4_decompress_safe_usingDict (const char* source, char* dest, int compressedSize, int maxDecompressedSize, const char* dictStart, int dictSize); int LZ4_decompress_fast_usingDict (const char* source, char* dest, int originalSize, const char* dictStart, int dictSize); @@ -294,18 +289,10 @@ They are only provided here for compatibility with older user programs. - LZ4_uncompress is the same as LZ4_decompress_fast - LZ4_uncompress_unknownOutputSize is the same as LZ4_decompress_safe These function prototypes are now disabled; uncomment them if you really need them. -It is highly recommended to stop using these functions and migrated to newer ones */ +It is highly recommended to stop using these functions and migrate to newer ones */ /* int LZ4_uncompress (const char* source, char* dest, int outputSize); */ /* int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); */ -/* - * If you prefer dynamic allocation methods, - * LZ4_createStreamDecode() - * provides a pointer (void*) towards an initialized LZ4_streamDecode_t structure. - * LZ4_free just frees it. - */ -/* void* LZ4_createStreamDecode(void); */ -/*int LZ4_free (void* LZ4_stream); yes, it's the same one as for compression */ /* Obsolete streaming functions; use new streaming interface whenever possible */ void* LZ4_create (const char* inputBuffer); |