#include "lz4hc.h"
#include "lz4.c"

Include dependency graph for lz4hc.c:

Classes
struct	LZ4HC_match_t

struct	LZ4HC_optimal_t

Macros
#define	anchor (*_anchor)

#define	DELTANEXTMAXD(p) chainTable[(p) & LZ4HC_MAXD_MASK] /* flexible, LZ4HC_MAXD dependent */

#define	DELTANEXTU16(table, pos) table[(U16)(pos)] /* faster */

#define	HASH_FUNCTION(i) (((i) * 2654435761U) >> ((MINMATCH*8)-LZ4HC_HASH_LOG))

#define	ip (*_ip)

#define	LZ4_COMMONDEFS_ONLY

#define	LZ4_HC_STATIC_LINKING_ONLY

#define	LZ4_OPT_NUM (1<<12)

#define	LZ4HC_HEAPMODE 1

#define	LZ4HC_rotl32(x, r) ((x << r) \| (x >> (32 - r)))

#define	MAX(a, b) ( (a) > (b) ? (a) : (b) )

#define	MIN(a, b) ( (a) < (b) ? (a) : (b) )

#define	op (*_op)

#define	OPTIMAL_ML (int)((ML_MASK-1)+MINMATCH)

#define	TRAILING_LITERALS 3

#define	UPDATABLE(ip, op, anchor) &ip, &op, &anchor

Enumerations
enum	dictCtx_directive { noDictCtx, usingDictCtxHc }

enum	HCfavor_e { favorCompressionRatio =0, favorDecompressionSpeed }

enum	repeat_state_e { rep_untested, rep_not, rep_confirmed }

Functions
void	LZ4_attach_HC_dictionary (LZ4_streamHC_t working_stream, const LZ4_streamHC_t dictionary_stream)

int	LZ4_compress_HC (const char src, char dst, int srcSize, int dstCapacity, int compressionLevel)

int	LZ4_compress_HC_continue (LZ4_streamHC_t LZ4_streamHCPtr, const char src, char *dst, int srcSize, int dstCapacity)

int	LZ4_compress_HC_continue_destSize (LZ4_streamHC_t LZ4_streamHCPtr, const char src, char dst, int srcSizePtr, int targetDestSize)

int	LZ4_compress_HC_destSize (void state, const char source, char dest, int sourceSizePtr, int targetDestSize, int cLevel)

int	LZ4_compress_HC_extStateHC (void state, const char src, char *dst, int srcSize, int dstCapacity, int compressionLevel)

int	LZ4_compress_HC_extStateHC_fastReset (void state, const char src, char *dst, int srcSize, int dstCapacity, int compressionLevel)

int	LZ4_compressHC (const char src, char dst, int srcSize)

int	LZ4_compressHC2 (const char src, char dst, int srcSize, int cLevel)

int	LZ4_compressHC2_continue (void LZ4HC_Data, const char src, char *dst, int srcSize, int cLevel)

int	LZ4_compressHC2_limitedOutput (const char src, char dst, int srcSize, int maxDstSize, int cLevel)

int	LZ4_compressHC2_limitedOutput_continue (void LZ4HC_Data, const char src, char *dst, int srcSize, int dstCapacity, int cLevel)

int	LZ4_compressHC2_limitedOutput_withStateHC (void state, const char src, char *dst, int srcSize, int maxDstSize, int cLevel)

int	LZ4_compressHC2_withStateHC (void state, const char src, char *dst, int srcSize, int cLevel)

int	LZ4_compressHC_continue (LZ4_streamHC_t ctx, const char src, char *dst, int srcSize)

static int	LZ4_compressHC_continue_generic (LZ4_streamHC_t LZ4_streamHCPtr, const char src, char dst, int srcSizePtr, int dstCapacity, limitedOutput_directive limit)

int	LZ4_compressHC_limitedOutput (const char src, char dst, int srcSize, int maxDstSize)

int	LZ4_compressHC_limitedOutput_continue (LZ4_streamHC_t ctx, const char src, char *dst, int srcSize, int maxDstSize)

int	LZ4_compressHC_limitedOutput_withStateHC (void state, const char src, char *dst, int srcSize, int maxDstSize)

int	LZ4_compressHC_withStateHC (void state, const char src, char *dst, int srcSize)

void *	LZ4_createHC (const char *inputBuffer)

LZ4_streamHC_t *	LZ4_createStreamHC (void)

void	LZ4_favorDecompressionSpeed (LZ4_streamHC_t *LZ4_streamHCPtr, int favor)

int	LZ4_freeHC (void *LZ4HC_Data)

int	LZ4_freeStreamHC (LZ4_streamHC_t *LZ4_streamHCPtr)

LZ4_streamHC_t *	LZ4_initStreamHC (void *buffer, size_t size)

int	LZ4_loadDictHC (LZ4_streamHC_t LZ4_streamHCPtr, const char dictionary, int dictSize)

void	LZ4_resetStreamHC (LZ4_streamHC_t *LZ4_streamHCPtr, int compressionLevel)

void	LZ4_resetStreamHC_fast (LZ4_streamHC_t *LZ4_streamHCPtr, int compressionLevel)

int	LZ4_resetStreamStateHC (void state, char inputBuffer)

int	LZ4_saveDictHC (LZ4_streamHC_t LZ4_streamHCPtr, char safeBuffer, int dictSize)

void	LZ4_setCompressionLevel (LZ4_streamHC_t *LZ4_streamHCPtr, int compressionLevel)

int	LZ4_sizeofStateHC (void)

int	LZ4_sizeofStreamStateHC (void)

char *	LZ4_slideInputBufferHC (void *LZ4HC_Data)

static size_t	LZ4_streamHC_t_alignment (void)

static void	LZ4HC_clearTables (LZ4HC_CCtx_internal *hc4)

static int	LZ4HC_compress_generic (LZ4HC_CCtx_internal const ctx, const char const src, char const dst, int const srcSizePtr, int const dstCapacity, int cLevel, limitedOutput_directive limit)

static int	LZ4HC_compress_generic_dictCtx (LZ4HC_CCtx_internal const ctx, const char const src, char const dst, int const srcSizePtr, int const dstCapacity, int cLevel, limitedOutput_directive limit)

LZ4_FORCE_INLINE int	LZ4HC_compress_generic_internal (LZ4HC_CCtx_internal const ctx, const char const src, char const dst, int const srcSizePtr, int const dstCapacity, int cLevel, const limitedOutput_directive limit, const dictCtx_directive dict)

static int	LZ4HC_compress_generic_noDictCtx (LZ4HC_CCtx_internal const ctx, const char const src, char const dst, int const srcSizePtr, int const dstCapacity, int cLevel, limitedOutput_directive limit)

LZ4_FORCE_INLINE int	LZ4HC_compress_hashChain (LZ4HC_CCtx_internal const ctx, const char const source, char const dest, int srcSizePtr, int const maxOutputSize, int maxNbAttempts, const limitedOutput_directive limit, const dictCtx_directive dict)

static int	LZ4HC_compress_optimal (LZ4HC_CCtx_internal ctx, const char const source, char dst, int srcSizePtr, int dstCapacity, int const nbSearches, size_t sufficient_len, const limitedOutput_directive limit, int const fullUpdate, const dictCtx_directive dict, const HCfavor_e favorDecSpeed)

LZ4_FORCE_INLINE int	LZ4HC_countBack (const BYTE const ip, const BYTE const match, const BYTE const iMin, const BYTE const mMin)

static unsigned	LZ4HC_countPattern (const BYTE ip, const BYTE const iEnd, U32 const pattern32)

LZ4_FORCE_INLINE int	LZ4HC_encodeSequence (const BYTE _ip, BYTE _op, const BYTE *_anchor, int matchLength, const BYTE const match, limitedOutput_directive limit, BYTE *oend)

LZ4_FORCE_INLINE LZ4HC_match_t	LZ4HC_FindLongerMatch (LZ4HC_CCtx_internal const ctx, const BYTE ip, const BYTE *const iHighLimit, int minLen, int nbSearches, const dictCtx_directive dict, const HCfavor_e favorDecSpeed)

static U32	LZ4HC_hashPtr (const void *ptr)

static void	LZ4HC_init_internal (LZ4HC_CCtx_internal hc4, const BYTE start)

LZ4_FORCE_INLINE void	LZ4HC_Insert (LZ4HC_CCtx_internal hc4, const BYTE ip)

LZ4_FORCE_INLINE int	LZ4HC_InsertAndFindBestMatch (LZ4HC_CCtx_internal const hc4, const BYTE const ip, const BYTE const iLimit, const BYTE *matchpos, const int maxNbAttempts, const int patternAnalysis, const dictCtx_directive dict)

LZ4_FORCE_INLINE int	LZ4HC_InsertAndGetWiderMatch (LZ4HC_CCtx_internal const hc4, const BYTE const ip, const BYTE const iLowLimit, const BYTE const iHighLimit, int longest, const BYTE matchpos, const BYTE startpos, const int maxNbAttempts, const int patternAnalysis, const int chainSwap, const dictCtx_directive dict, const HCfavor_e favorDecSpeed)

LZ4_FORCE_INLINE int	LZ4HC_literalsPrice (int const litlen)

static int	LZ4HC_protectDictEnd (U32 const dictLimit, U32 const matchIndex)

static unsigned	LZ4HC_reverseCountPattern (const BYTE ip, const BYTE const iLow, U32 pattern)

static U32	LZ4HC_rotatePattern (size_t const rotate, U32 const pattern)

LZ4_FORCE_INLINE int	LZ4HC_sequencePrice (int litlen, int mlen)

static void	LZ4HC_setExternalDict (LZ4HC_CCtx_internal ctxPtr, const BYTE newBlock)

Macro Definition Documentation

◆ anchor

#define anchor (*_anchor)

◆ DELTANEXTMAXD

#define DELTANEXTMAXD ( p ) chainTable[(p) & LZ4HC_MAXD_MASK] /* flexible, LZ4HC_MAXD dependent */

Definition at line 83 of file lz4hc.c.

◆ DELTANEXTU16

#define DELTANEXTU16	(	table,
		pos
	)	table[(U16)(pos)] /* faster */

Definition at line 84 of file lz4hc.c.

◆ HASH_FUNCTION

#define HASH_FUNCTION ( i ) (((i) * 2654435761U) >> ((MINMATCH*8)-LZ4HC_HASH_LOG))

Definition at line 82 of file lz4hc.c.

◆ LZ4_COMMONDEFS_ONLY

#define LZ4_COMMONDEFS_ONLY

Definition at line 64 of file lz4hc.c.

◆ LZ4_HC_STATIC_LINKING_ONLY

#define LZ4_HC_STATIC_LINKING_ONLY

Definition at line 52 of file lz4hc.c.

◆ LZ4_OPT_NUM

#define LZ4_OPT_NUM (1<<12)

Definition at line 76 of file lz4hc.c.

◆ LZ4HC_HEAPMODE

#define LZ4HC_HEAPMODE 1

HEAPMODE : Select how default compression function will allocate workplace memory, in stack (0:fastest), or in heap (1:requires malloc()). Since workplace is rather large, heap mode is recommended.

Definition at line 47 of file lz4hc.c.

◆ LZ4HC_rotl32

#define LZ4HC_rotl32	(	x,
		r
	)	((x << r) \| (x >> (32 - r)))

Definition at line 163 of file lz4hc.c.

◆ MAX

#define MAX	(	a,
		b
	)	( (a) > (b) ? (a) : (b) )

Definition at line 81 of file lz4hc.c.

◆ MIN

#define MIN	(	a,
		b
	)	( (a) < (b) ? (a) : (b) )

Definition at line 80 of file lz4hc.c.

◆ OPTIMAL_ML

#define OPTIMAL_ML (int)((ML_MASK-1)+MINMATCH)

Definition at line 75 of file lz4hc.c.

◆ TRAILING_LITERALS

#define TRAILING_LITERALS 3

◆ UPDATABLE

#define UPDATABLE	(	ip,
		op,
		anchor
	)	&ip, &op, &anchor

Definition at line 86 of file lz4hc.c.

Enumeration Type Documentation

◆ dictCtx_directive

enum dictCtx_directive

Enumerator
noDictCtx
usingDictCtxHc

Definition at line 71 of file lz4hc.c.

◆ HCfavor_e

enum HCfavor_e

Enumerator
favorCompressionRatio
favorDecompressionSpeed

Definition at line 237 of file lz4hc.c.

◆ repeat_state_e

enum repeat_state_e

Enumerator
rep_untested
rep_not
rep_confirmed

Definition at line 236 of file lz4hc.c.

Function Documentation

◆ LZ4_attach_HC_dictionary()

void LZ4_attach_HC_dictionary	(	LZ4_streamHC_t *	working_stream,
		const LZ4_streamHC_t *	dictionary_stream
	)

Definition at line 1087 of file lz4hc.c.

◆ LZ4_compress_HC()

int LZ4_compress_HC	(	const char *	src,
		char *	dst,
		int	srcSize,
		int	dstCapacity,
		int	compressionLevel
	)

LZ4_compress_HC() : Compress data from src into dst, using the powerful but slower "HC" algorithm. dst must be already allocated. 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 : any value between 1 and LZ4HC_CLEVEL_MAX will work. Values > LZ4HC_CLEVEL_MAX behave the same as LZ4HC_CLEVEL_MAX.

Returns: : the number of bytes written into 'dst' or 0 if compression fails.

Definition at line 958 of file lz4hc.c.

◆ LZ4_compress_HC_continue()

int LZ4_compress_HC_continue	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	dstCapacity
	)

Definition at line 1151 of file lz4hc.c.

◆ LZ4_compress_HC_continue_destSize()

int LZ4_compress_HC_continue_destSize	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		const char *	src,
		char *	dst,
		int *	srcSizePtr,
		int	targetDstSize
	)

LZ4_compress_HC_continue_destSize() : v1.9.0+ Similar to LZ4_compress_HC_continue(), but will read as much data as possible from src to fit into targetDstSize budget. Result is provided into 2 parts :

Returns: : the number of bytes written into 'dst' (necessarily <= targetDstSize) or 0 if compression fails. srcSizePtr : on success, *srcSizePtr will be updated to indicate how much bytes were read from src. Note that this function may not consume the entire input.

Definition at line 1159 of file lz4hc.c.

◆ LZ4_compress_HC_destSize()

int LZ4_compress_HC_destSize	(	void *	stateHC,
		const char *	src,
		char *	dst,
		int *	srcSizePtr,
		int	targetDstSize,
		int	compressionLevel
	)

LZ4_compress_HC_destSize() : v1.9.0+ Will compress as much data as possible from src to fit into targetDstSize budget. Result is provided in 2 parts :

Returns: : the number of bytes written into 'dst' (necessarily <= targetDstSize) or 0 if compression fails. srcSizePtr : on success, *srcSizePtr is updated to indicate how much bytes were read from src

Definition at line 976 of file lz4hc.c.

◆ LZ4_compress_HC_extStateHC()

int LZ4_compress_HC_extStateHC	(	void *	state,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	dstCapacity,
		int	compressionLevel
	)

Definition at line 951 of file lz4hc.c.

◆ LZ4_compress_HC_extStateHC_fastReset()

int LZ4_compress_HC_extStateHC_fastReset	(	void *	state,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	dstCapacity,
		int	compressionLevel
	)

Definition at line 939 of file lz4hc.c.

◆ LZ4_compressHC()

int LZ4_compressHC	(	const char *	src,
		char *	dst,
		int	srcSize
	)

Definition at line 1203 of file lz4hc.c.

◆ LZ4_compressHC2()

int LZ4_compressHC2	(	const char *	src,
		char *	dst,
		int	srcSize,
		int	cLevel
	)

Definition at line 1205 of file lz4hc.c.

◆ LZ4_compressHC2_continue()

int LZ4_compressHC2_continue	(	void *	LZ4HC_Data,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	cLevel
	)

Definition at line 1245 of file lz4hc.c.

◆ LZ4_compressHC2_limitedOutput()

int LZ4_compressHC2_limitedOutput	(	const char *	src,
		char *	dst,
		int	srcSize,
		int	maxDstSize,
		int	cLevel
	)

Definition at line 1206 of file lz4hc.c.

◆ LZ4_compressHC2_limitedOutput_continue()

int LZ4_compressHC2_limitedOutput_continue	(	void *	LZ4HC_Data,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	dstCapacity,
		int	cLevel
	)

Definition at line 1250 of file lz4hc.c.

◆ LZ4_compressHC2_limitedOutput_withStateHC()

int LZ4_compressHC2_limitedOutput_withStateHC	(	void *	state,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	maxDstSize,
		int	cLevel
	)

Definition at line 1210 of file lz4hc.c.

◆ LZ4_compressHC2_withStateHC()

int LZ4_compressHC2_withStateHC	(	void *	state,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	cLevel
	)

Definition at line 1209 of file lz4hc.c.

◆ LZ4_compressHC_continue()

int LZ4_compressHC_continue	(	LZ4_streamHC_t *	ctx,
		const char *	src,
		char *	dst,
		int	srcSize
	)

Definition at line 1211 of file lz4hc.c.

◆ LZ4_compressHC_continue_generic()

static int LZ4_compressHC_continue_generic	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		const char *	src,
		char *	dst,
		int *	srcSizePtr,
		int	dstCapacity,
		limitedOutput_directive	limit
	)

static

Definition at line 1112 of file lz4hc.c.

◆ LZ4_compressHC_limitedOutput()

int LZ4_compressHC_limitedOutput	(	const char *	src,
		char *	dst,
		int	srcSize,
		int	maxDstSize
	)

Definition at line 1204 of file lz4hc.c.

◆ LZ4_compressHC_limitedOutput_continue()

int LZ4_compressHC_limitedOutput_continue	(	LZ4_streamHC_t *	ctx,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	maxDstSize
	)

Definition at line 1212 of file lz4hc.c.

◆ LZ4_compressHC_limitedOutput_withStateHC()

int LZ4_compressHC_limitedOutput_withStateHC	(	void *	state,
		const char *	src,
		char *	dst,
		int	srcSize,
		int	maxDstSize
	)

Definition at line 1208 of file lz4hc.c.

◆ LZ4_compressHC_withStateHC()

int LZ4_compressHC_withStateHC	(	void *	state,
		const char *	src,
		char *	dst,
		int	srcSize
	)

Definition at line 1207 of file lz4hc.c.

◆ LZ4_createHC()

void* LZ4_createHC ( const char * inputBuffer )

Definition at line 1229 of file lz4hc.c.

◆ LZ4_createStreamHC()

LZ4_streamHC_t* LZ4_createStreamHC ( void )

LZ4_createStreamHC() and LZ4_freeStreamHC() : These functions create and release memory for LZ4 HC streaming state. Newly created states are automatically initialized. A same state can be used multiple times consecutively, starting with LZ4_resetStreamHC_fast() to start a new stream of blocks.

Definition at line 992 of file lz4hc.c.

◆ LZ4_favorDecompressionSpeed()

void LZ4_favorDecompressionSpeed	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		int	favor
	)

Definition at line 1059 of file lz4hc.c.

◆ LZ4_freeHC()

int LZ4_freeHC ( void * LZ4HC_Data )

Definition at line 1237 of file lz4hc.c.

◆ LZ4_freeStreamHC()

int LZ4_freeStreamHC ( LZ4_streamHC_t * LZ4_streamHCPtr )

Definition at line 1001 of file lz4hc.c.

◆ LZ4_initStreamHC()

LZ4_streamHC_t* LZ4_initStreamHC	(	void *	buffer,
		size_t	size
	)

Definition at line 1011 of file lz4hc.c.

◆ LZ4_loadDictHC()

int LZ4_loadDictHC	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		const char *	dictionary,
		int	dictSize
	)

Definition at line 1066 of file lz4hc.c.

◆ LZ4_resetStreamHC()

void LZ4_resetStreamHC	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		int	compressionLevel
	)

Definition at line 1027 of file lz4hc.c.

◆ LZ4_resetStreamHC_fast()

void LZ4_resetStreamHC_fast	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		int	compressionLevel
	)

Definition at line 1033 of file lz4hc.c.

◆ LZ4_resetStreamStateHC()

int LZ4_resetStreamStateHC	(	void *	state,
		char *	inputBuffer
	)

Definition at line 1220 of file lz4hc.c.

◆ LZ4_saveDictHC()

int LZ4_saveDictHC	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		char *	safeBuffer,
		int	dictSize
	)

Definition at line 1171 of file lz4hc.c.

◆ LZ4_setCompressionLevel()

void LZ4_setCompressionLevel	(	LZ4_streamHC_t *	LZ4_streamHCPtr,
		int	compressionLevel
	)

Definition at line 1051 of file lz4hc.c.

◆ LZ4_sizeofStateHC()

int LZ4_sizeofStateHC ( void )

LZ4_compress_HC_extStateHC() : Same as LZ4_compress_HC(), but using an externally allocated memory segment for state. state size is provided by LZ4_sizeofStateHC(). Memory segment must be aligned on 8-bytes boundaries (which a normal malloc() should do properly).

Definition at line 925 of file lz4hc.c.

◆ LZ4_sizeofStreamStateHC()

int LZ4_sizeofStreamStateHC ( void )

Definition at line 1216 of file lz4hc.c.

◆ LZ4_slideInputBufferHC()

char* LZ4_slideInputBufferHC ( void * LZ4HC_Data )

Definition at line 1255 of file lz4hc.c.

◆ LZ4_streamHC_t_alignment()

static size_t LZ4_streamHC_t_alignment ( void )

static

Definition at line 927 of file lz4hc.c.

◆ LZ4HC_clearTables()

static void LZ4HC_clearTables ( LZ4HC_CCtx_internal * hc4 )

static

Definition at line 94 of file lz4hc.c.

◆ LZ4HC_compress_generic()

static int LZ4HC_compress_generic	(	LZ4HC_CCtx_internal *const	ctx,
		const char *const	src,
		char *const	dst,
		int *const	srcSizePtr,
		int const	dstCapacity,
		int	cLevel,
		limitedOutput_directive	limit
	)

static

Definition at line 907 of file lz4hc.c.

◆ LZ4HC_compress_generic_dictCtx()

static int LZ4HC_compress_generic_dictCtx	(	LZ4HC_CCtx_internal *const	ctx,
		const char *const	src,
		char *const	dst,
		int *const	srcSizePtr,
		int const	dstCapacity,
		int	cLevel,
		limitedOutput_directive	limit
	)

static

Definition at line 881 of file lz4hc.c.

◆ LZ4HC_compress_generic_internal()

LZ4_FORCE_INLINE int LZ4HC_compress_generic_internal	(	LZ4HC_CCtx_internal *const	ctx,
		const char *const	src,
		char *const	dst,
		int *const	srcSizePtr,
		int const	dstCapacity,
		int	cLevel,
		const limitedOutput_directive	limit,
		const dictCtx_directive	dict
	)

Definition at line 800 of file lz4hc.c.

◆ LZ4HC_compress_generic_noDictCtx()

static int LZ4HC_compress_generic_noDictCtx	(	LZ4HC_CCtx_internal *const	ctx,
		const char *const	src,
		char *const	dst,
		int *const	srcSizePtr,
		int const	dstCapacity,
		int	cLevel,
		limitedOutput_directive	limit
	)

static

Definition at line 866 of file lz4hc.c.

◆ LZ4HC_compress_hashChain()

LZ4_FORCE_INLINE int LZ4HC_compress_hashChain	(	LZ4HC_CCtx_internal *const	ctx,
		const char *const	source,
		char *const	dest,
		int *	srcSizePtr,
		int const	maxOutputSize,
		int	maxNbAttempts,
		const limitedOutput_directive	limit,
		const dictCtx_directive	dict
	)

Definition at line 553 of file lz4hc.c.

◆ LZ4HC_compress_optimal()

static int LZ4HC_compress_optimal	(	LZ4HC_CCtx_internal *	ctx,
		const char *const	source,
		char *	dst,
		int *	srcSizePtr,
		int	dstCapacity,
		int const	nbSearches,
		size_t	sufficient_len,
		const limitedOutput_directive	limit,
		int const	fullUpdate,
		const dictCtx_directive	dict,
		const HCfavor_e	favorDecSpeed
	)

static

Definition at line 1330 of file lz4hc.c.

◆ LZ4HC_countBack()

LZ4_FORCE_INLINE int LZ4HC_countBack	(	const BYTE *const	ip,
		const BYTE *const	match,
		const BYTE *const	iMin,
		const BYTE *const	mMin
	)

LZ4HC_countBack() :

Returns: : negative value, nb of common bytes before ip/match

Definition at line 146 of file lz4hc.c.

◆ LZ4HC_countPattern()

static unsigned LZ4HC_countPattern	(	const BYTE *	ip,
		const BYTE *const	iEnd,
		U32 const	pattern32
	)

static

Definition at line 177 of file lz4hc.c.

◆ LZ4HC_encodeSequence()

LZ4_FORCE_INLINE int LZ4HC_encodeSequence	(	const BYTE **	_ip,
		BYTE **	_op,
		const BYTE **	_anchor,
		int	matchLength,
		const BYTE *const	match,
		limitedOutput_directive	limit,
		BYTE *	oend
	)

Definition at line 467 of file lz4hc.c.

◆ LZ4HC_FindLongerMatch()

LZ4_FORCE_INLINE LZ4HC_match_t LZ4HC_FindLongerMatch	(	LZ4HC_CCtx_internal *const	ctx,
		const BYTE *	ip,
		const BYTE *const	iHighLimit,
		int	minLen,
		int	nbSearches,
		const dictCtx_directive	dict,
		const HCfavor_e	favorDecSpeed
	)

Definition at line 1308 of file lz4hc.c.

◆ LZ4HC_hashPtr()

static U32 LZ4HC_hashPtr ( const void * ptr )

static

Definition at line 88 of file lz4hc.c.

◆ LZ4HC_init_internal()

static void LZ4HC_init_internal	(	LZ4HC_CCtx_internal *	hc4,
		const BYTE *	start
	)

static

Definition at line 100 of file lz4hc.c.

◆ LZ4HC_Insert()

LZ4_FORCE_INLINE void LZ4HC_Insert	(	LZ4HC_CCtx_internal *	hc4,
		const BYTE *	ip
	)

Definition at line 120 of file lz4hc.c.

◆ LZ4HC_InsertAndFindBestMatch()

LZ4_FORCE_INLINE int LZ4HC_InsertAndFindBestMatch	(	LZ4HC_CCtx_internal *const	hc4,
		const BYTE *const	ip,
		const BYTE *const	iLimit,
		const BYTE **	matchpos,
		const int	maxNbAttempts,
		const int	patternAnalysis,
		const dictCtx_directive	dict
	)

Definition at line 450 of file lz4hc.c.

◆ LZ4HC_InsertAndGetWiderMatch()

LZ4_FORCE_INLINE int LZ4HC_InsertAndGetWiderMatch	(	LZ4HC_CCtx_internal *const	hc4,
		const BYTE *const	ip,
		const BYTE *const	iLowLimit,
		const BYTE *const	iHighLimit,
		int	longest,
		const BYTE **	matchpos,
		const BYTE **	startpos,
		const int	maxNbAttempts,
		const int	patternAnalysis,
		const int	chainSwap,
		const dictCtx_directive	dict,
		const HCfavor_e	favorDecSpeed
	)

Definition at line 240 of file lz4hc.c.

◆ LZ4HC_literalsPrice()

LZ4_FORCE_INLINE int LZ4HC_literalsPrice ( int const litlen )

Definition at line 1276 of file lz4hc.c.

◆ LZ4HC_protectDictEnd()

static int LZ4HC_protectDictEnd	(	U32 const	dictLimit,
		U32 const	matchIndex
	)

static

Definition at line 231 of file lz4hc.c.

◆ LZ4HC_reverseCountPattern()

static unsigned LZ4HC_reverseCountPattern	(	const BYTE *	ip,
		const BYTE *const	iLow,
		U32	pattern
	)

static

Definition at line 210 of file lz4hc.c.

◆ LZ4HC_rotatePattern()

static U32 LZ4HC_rotatePattern	(	size_t const	rotate,
		U32 const	pattern
	)

static

Definition at line 167 of file lz4hc.c.

◆ LZ4HC_sequencePrice()

LZ4_FORCE_INLINE int LZ4HC_sequencePrice	(	int	litlen,
		int	mlen
	)

Definition at line 1287 of file lz4hc.c.

◆ LZ4HC_setExternalDict()

static void LZ4HC_setExternalDict	(	LZ4HC_CCtx_internal *	ctxPtr,
		const BYTE *	newBlock
	)

static

Definition at line 1093 of file lz4hc.c.

Classes

Macros

Enumerations

Functions

Macro Definition Documentation

◆ anchor

◆ DELTANEXTMAXD

◆ DELTANEXTU16

◆ HASH_FUNCTION

◆ ip

◆ LZ4_COMMONDEFS_ONLY

◆ LZ4_HC_STATIC_LINKING_ONLY

◆ LZ4_OPT_NUM

◆ LZ4HC_HEAPMODE

◆ LZ4HC_rotl32

◆ MAX

◆ MIN

◆ op

◆ OPTIMAL_ML

◆ TRAILING_LITERALS

◆ UPDATABLE

Enumeration Type Documentation

◆ dictCtx_directive

◆ HCfavor_e

◆ repeat_state_e

Function Documentation

◆ LZ4_attach_HC_dictionary()

◆ LZ4_compress_HC()

◆ LZ4_compress_HC_continue()

◆ LZ4_compress_HC_continue_destSize()

◆ LZ4_compress_HC_destSize()

◆ LZ4_compress_HC_extStateHC()

◆ LZ4_compress_HC_extStateHC_fastReset()

◆ 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_continue_generic()

◆ LZ4_compressHC_limitedOutput()

◆ LZ4_compressHC_limitedOutput_continue()

◆ LZ4_compressHC_limitedOutput_withStateHC()

◆ LZ4_compressHC_withStateHC()

◆ LZ4_createHC()

◆ LZ4_createStreamHC()

◆ LZ4_favorDecompressionSpeed()

◆ LZ4_freeHC()

◆ LZ4_freeStreamHC()

◆ LZ4_initStreamHC()

◆ LZ4_loadDictHC()

◆ LZ4_resetStreamHC()

◆ LZ4_resetStreamHC_fast()

◆ LZ4_resetStreamStateHC()

◆ LZ4_saveDictHC()

◆ LZ4_setCompressionLevel()

◆ LZ4_sizeofStateHC()

◆ LZ4_sizeofStreamStateHC()

◆ LZ4_slideInputBufferHC()

◆ LZ4_streamHC_t_alignment()

◆ LZ4HC_clearTables()

◆ LZ4HC_compress_generic()

◆ LZ4HC_compress_generic_dictCtx()

◆ LZ4HC_compress_generic_internal()

◆ LZ4HC_compress_generic_noDictCtx()

◆ LZ4HC_compress_hashChain()

◆ LZ4HC_compress_optimal()

◆ LZ4HC_countBack()

◆ LZ4HC_countPattern()

◆ LZ4HC_encodeSequence()

◆ LZ4HC_FindLongerMatch()

◆ LZ4HC_hashPtr()

◆ LZ4HC_init_internal()

◆ LZ4HC_Insert()

◆ LZ4HC_InsertAndFindBestMatch()

◆ LZ4HC_InsertAndGetWiderMatch()

◆ LZ4HC_literalsPrice()

◆ LZ4HC_protectDictEnd()