341 lines
19 KiB
C
341 lines
19 KiB
C
|
/* ******************************************************************
|
||
|
|
* huff0 huffman codec,
|
||
|
|
* part of Finite State Entropy library
|
||
|
|
* Copyright (c) 2013-2020, Yann Collet, Facebook, Inc.
|
||
|
|
*
|
||
|
|
* You can contact the author at :
|
||
|
|
* - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
|
||
|
|
*
|
||
|
|
* This source code is licensed under both the BSD-style license (found in the
|
||
|
|
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
|
||
|
|
* in the COPYING file in the root directory of this source tree).
|
||
|
|
* You may select, at your option, one of the above-listed licenses.
|
||
|
|
****************************************************************** */
|
||
|
|
|
||
|
|
#if defined (__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef HUF_H_298734234
|
||
|
|
#define HUF_H_298734234
|
||
|
|
|
||
|
|
/* *** Dependencies *** */
|
||
|
|
#include <stddef.h> /* size_t */
|
||
|
|
|
||
|
|
|
||
|
|
/* *** library symbols visibility *** */
|
||
|
|
/* Note : when linking with -fvisibility=hidden on gcc, or by default on Visual,
|
||
|
|
* HUF symbols remain "private" (internal symbols for library only).
|
||
|
|
* Set macro FSE_DLL_EXPORT to 1 if you want HUF symbols visible on DLL interface */
|
||
|
|
#if defined(FSE_DLL_EXPORT) && (FSE_DLL_EXPORT==1) && defined(__GNUC__) && (__GNUC__ >= 4)
|
||
|
|
# define HUF_PUBLIC_API __attribute__ ((visibility ("default")))
|
||
|
|
#elif defined(FSE_DLL_EXPORT) && (FSE_DLL_EXPORT==1) /* Visual expected */
|
||
|
|
# define HUF_PUBLIC_API __declspec(dllexport)
|
||
|
|
#elif defined(FSE_DLL_IMPORT) && (FSE_DLL_IMPORT==1)
|
||
|
|
# define HUF_PUBLIC_API __declspec(dllimport) /* not required, just to generate faster code (saves a function pointer load from IAT and an indirect jump) */
|
||
|
|
#else
|
||
|
|
# define HUF_PUBLIC_API
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* ========================== */
|
||
|
|
/* *** simple functions *** */
|
||
|
|
/* ========================== */
|
||
|
|
|
||
|
|
/** HUF_compress() :
|
||
|
|
* Compress content from buffer 'src', of size 'srcSize', into buffer 'dst'.
|
||
|
|
* 'dst' buffer must be already allocated.
|
||
|
|
* Compression runs faster if `dstCapacity` >= HUF_compressBound(srcSize).
|
||
|
|
* `srcSize` must be <= `HUF_BLOCKSIZE_MAX` == 128 KB.
|
||
|
|
* @return : size of compressed data (<= `dstCapacity`).
|
||
|
|
* Special values : if return == 0, srcData is not compressible => Nothing is stored within dst !!!
|
||
|
|
* if HUF_isError(return), compression failed (more details using HUF_getErrorName())
|
||
|
|
*/
|
||
|
|
HUF_PUBLIC_API size_t HUF_compress(void* dst, size_t dstCapacity,
|
||
|
|
const void* src, size_t srcSize);
|
||
|
|
|
||
|
|
/** HUF_decompress() :
|
||
|
|
* Decompress HUF data from buffer 'cSrc', of size 'cSrcSize',
|
||
|
|
* into already allocated buffer 'dst', of minimum size 'dstSize'.
|
||
|
|
* `originalSize` : **must** be the ***exact*** size of original (uncompressed) data.
|
||
|
|
* Note : in contrast with FSE, HUF_decompress can regenerate
|
||
|
|
* RLE (cSrcSize==1) and uncompressed (cSrcSize==dstSize) data,
|
||
|
|
* because it knows size to regenerate (originalSize).
|
||
|
|
* @return : size of regenerated data (== originalSize),
|
||
|
|
* or an error code, which can be tested using HUF_isError()
|
||
|
|
*/
|
||
|
|
HUF_PUBLIC_API size_t HUF_decompress(void* dst, size_t originalSize,
|
||
|
|
const void* cSrc, size_t cSrcSize);
|
||
|
|
|
||
|
|
|
||
|
|
/* *** Tool functions *** */
|
||
|
|
#define HUF_BLOCKSIZE_MAX (128 * 1024) /**< maximum input size for a single block compressed with HUF_compress */
|
||
|
|
HUF_PUBLIC_API size_t HUF_compressBound(size_t size); /**< maximum compressed size (worst case) */
|
||
|
|
|
||
|
|
/* Error Management */
|
||
|
|
HUF_PUBLIC_API unsigned HUF_isError(size_t code); /**< tells if a return value is an error code */
|
||
|
|
HUF_PUBLIC_API const char* HUF_getErrorName(size_t code); /**< provides error code string (useful for debugging) */
|
||
|
|
|
||
|
|
|
||
|
|
/* *** Advanced function *** */
|
||
|
|
|
||
|
|
/** HUF_compress2() :
|
||
|
|
* Same as HUF_compress(), but offers control over `maxSymbolValue` and `tableLog`.
|
||
|
|
* `maxSymbolValue` must be <= HUF_SYMBOLVALUE_MAX .
|
||
|
|
* `tableLog` must be `<= HUF_TABLELOG_MAX` . */
|
||
|
|
HUF_PUBLIC_API size_t HUF_compress2 (void* dst, size_t dstCapacity,
|
||
|
|
const void* src, size_t srcSize,
|
||
|
|
unsigned maxSymbolValue, unsigned tableLog);
|
||
|
|
|
||
|
|
/** HUF_compress4X_wksp() :
|
||
|
|
* Same as HUF_compress2(), but uses externally allocated `workSpace`.
|
||
|
|
* `workspace` must have minimum alignment of 4, and be at least as large as HUF_WORKSPACE_SIZE */
|
||
|
|
#define HUF_WORKSPACE_SIZE ((6 << 10) + 256)
|
||
|
|
#define HUF_WORKSPACE_SIZE_U32 (HUF_WORKSPACE_SIZE / sizeof(U32))
|
||
|
|
HUF_PUBLIC_API size_t HUF_compress4X_wksp (void* dst, size_t dstCapacity,
|
||
|
|
const void* src, size_t srcSize,
|
||
|
|
unsigned maxSymbolValue, unsigned tableLog,
|
||
|
|
void* workSpace, size_t wkspSize);
|
||
|
|
|
||
|
|
#endif /* HUF_H_298734234 */
|
||
|
|
|
||
|
|
/* ******************************************************************
|
||
|
|
* WARNING !!
|
||
|
|
* The following section contains advanced and experimental definitions
|
||
|
|
* which shall never be used in the context of a dynamic library,
|
||
|
|
* because they are not guaranteed to remain stable in the future.
|
||
|
|
* Only consider them in association with static linking.
|
||
|
|
* *****************************************************************/
|
||
|
|
#if defined(HUF_STATIC_LINKING_ONLY) && !defined(HUF_H_HUF_STATIC_LINKING_ONLY)
|
||
|
|
#define HUF_H_HUF_STATIC_LINKING_ONLY
|
||
|
|
|
||
|
|
/* *** Dependencies *** */
|
||
|
|
#include "mem.h" /* U32 */
|
||
|
|
|
||
|
|
|
||
|
|
/* *** Constants *** */
|
||
|
|
#define HUF_TABLELOG_MAX 12 /* max runtime value of tableLog (due to static allocation); can be modified up to HUF_ABSOLUTEMAX_TABLELOG */
|
||
|
|
#define HUF_TABLELOG_DEFAULT 11 /* default tableLog value when none specified */
|
||
|
|
#define HUF_SYMBOLVALUE_MAX 255
|
||
|
|
|
||
|
|
#define HUF_TABLELOG_ABSOLUTEMAX 15 /* absolute limit of HUF_MAX_TABLELOG. Beyond that value, code does not work */
|
||
|
|
#if (HUF_TABLELOG_MAX > HUF_TABLELOG_ABSOLUTEMAX)
|
||
|
|
# error "HUF_TABLELOG_MAX is too large !"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* ****************************************
|
||
|
|
* Static allocation
|
||
|
|
******************************************/
|
||
|
|
/* HUF buffer bounds */
|
||
|
|
#define HUF_CTABLEBOUND 129
|
||
|
|
#define HUF_BLOCKBOUND(size) (size + (size>>8) + 8) /* only true when incompressible is pre-filtered with fast heuristic */
|
||
|
|
#define HUF_COMPRESSBOUND(size) (HUF_CTABLEBOUND + HUF_BLOCKBOUND(size)) /* Macro version, useful for static allocation */
|
||
|
|
|
||
|
|
/* static allocation of HUF's Compression Table */
|
||
|
|
#define HUF_CTABLE_SIZE_U32(maxSymbolValue) ((maxSymbolValue)+1) /* Use tables of U32, for proper alignment */
|
||
|
|
#define HUF_CTABLE_SIZE(maxSymbolValue) (HUF_CTABLE_SIZE_U32(maxSymbolValue) * sizeof(U32))
|
||
|
|
#define HUF_CREATE_STATIC_CTABLE(name, maxSymbolValue) \
|
||
|
|
U32 name##hb[HUF_CTABLE_SIZE_U32(maxSymbolValue)]; \
|
||
|
|
void* name##hv = &(name##hb); \
|
||
|
|
HUF_CElt* name = (HUF_CElt*)(name##hv) /* no final ; */
|
||
|
|
|
||
|
|
/* static allocation of HUF's DTable */
|
||
|
|
typedef U32 HUF_DTable;
|
||
|
|
#define HUF_DTABLE_SIZE(maxTableLog) (1 + (1<<(maxTableLog)))
|
||
|
|
#define HUF_CREATE_STATIC_DTABLEX1(DTable, maxTableLog) \
|
||
|
|
HUF_DTable DTable[HUF_DTABLE_SIZE((maxTableLog)-1)] = { ((U32)((maxTableLog)-1) * 0x01000001) }
|
||
|
|
#define HUF_CREATE_STATIC_DTABLEX2(DTable, maxTableLog) \
|
||
|
|
HUF_DTable DTable[HUF_DTABLE_SIZE(maxTableLog)] = { ((U32)(maxTableLog) * 0x01000001) }
|
||
|
|
|
||
|
|
|
||
|
|
/* ****************************************
|
||
|
|
* Advanced decompression functions
|
||
|
|
******************************************/
|
||
|
|
size_t HUF_decompress4X1 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_decompress4X2 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
size_t HUF_decompress4X_DCtx (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< decodes RLE and uncompressed */
|
||
|
|
size_t HUF_decompress4X_hufOnly(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< considers RLE and uncompressed as errors */
|
||
|
|
size_t HUF_decompress4X_hufOnly_wksp(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize); /**< considers RLE and uncompressed as errors */
|
||
|
|
size_t HUF_decompress4X1_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */
|
||
|
|
size_t HUF_decompress4X1_DCtx_wksp(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize); /**< single-symbol decoder */
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_decompress4X2_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */
|
||
|
|
size_t HUF_decompress4X2_DCtx_wksp(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize); /**< double-symbols decoder */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* ****************************************
|
||
|
|
* HUF detailed API
|
||
|
|
* ****************************************/
|
||
|
|
|
||
|
|
/*! HUF_compress() does the following:
|
||
|
|
* 1. count symbol occurrence from source[] into table count[] using FSE_count() (exposed within "fse.h")
|
||
|
|
* 2. (optional) refine tableLog using HUF_optimalTableLog()
|
||
|
|
* 3. build Huffman table from count using HUF_buildCTable()
|
||
|
|
* 4. save Huffman table to memory buffer using HUF_writeCTable()
|
||
|
|
* 5. encode the data stream using HUF_compress4X_usingCTable()
|
||
|
|
*
|
||
|
|
* The following API allows targeting specific sub-functions for advanced tasks.
|
||
|
|
* For example, it's possible to compress several blocks using the same 'CTable',
|
||
|
|
* or to save and regenerate 'CTable' using external methods.
|
||
|
|
*/
|
||
|
|
unsigned HUF_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue);
|
||
|
|
typedef struct HUF_CElt_s HUF_CElt; /* incomplete type */
|
||
|
|
size_t HUF_buildCTable (HUF_CElt* CTable, const unsigned* count, unsigned maxSymbolValue, unsigned maxNbBits); /* @return : maxNbBits; CTable and count can overlap. In which case, CTable will overwrite count content */
|
||
|
|
size_t HUF_writeCTable (void* dst, size_t maxDstSize, const HUF_CElt* CTable, unsigned maxSymbolValue, unsigned huffLog);
|
||
|
|
size_t HUF_compress4X_usingCTable(void* dst, size_t dstSize, const void* src, size_t srcSize, const HUF_CElt* CTable);
|
||
|
|
size_t HUF_estimateCompressedSize(const HUF_CElt* CTable, const unsigned* count, unsigned maxSymbolValue);
|
||
|
|
int HUF_validateCTable(const HUF_CElt* CTable, const unsigned* count, unsigned maxSymbolValue);
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
HUF_repeat_none, /**< Cannot use the previous table */
|
||
|
|
HUF_repeat_check, /**< Can use the previous table but it must be checked. Note : The previous table must have been constructed by HUF_compress{1, 4}X_repeat */
|
||
|
|
HUF_repeat_valid /**< Can use the previous table and it is assumed to be valid */
|
||
|
|
} HUF_repeat;
|
||
|
|
/** HUF_compress4X_repeat() :
|
||
|
|
* Same as HUF_compress4X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none.
|
||
|
|
* If it uses hufTable it does not modify hufTable or repeat.
|
||
|
|
* If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used.
|
||
|
|
* If preferRepeat then the old table will always be used if valid. */
|
||
|
|
size_t HUF_compress4X_repeat(void* dst, size_t dstSize,
|
||
|
|
const void* src, size_t srcSize,
|
||
|
|
unsigned maxSymbolValue, unsigned tableLog,
|
||
|
|
void* workSpace, size_t wkspSize, /**< `workSpace` must be aligned on 4-bytes boundaries, `wkspSize` must be >= HUF_WORKSPACE_SIZE */
|
||
|
|
HUF_CElt* hufTable, HUF_repeat* repeat, int preferRepeat, int bmi2);
|
||
|
|
|
||
|
|
/** HUF_buildCTable_wksp() :
|
||
|
|
* Same as HUF_buildCTable(), but using externally allocated scratch buffer.
|
||
|
|
* `workSpace` must be aligned on 4-bytes boundaries, and its size must be >= HUF_CTABLE_WORKSPACE_SIZE.
|
||
|
|
*/
|
||
|
|
#define HUF_CTABLE_WORKSPACE_SIZE_U32 (2*HUF_SYMBOLVALUE_MAX +1 +1)
|
||
|
|
#define HUF_CTABLE_WORKSPACE_SIZE (HUF_CTABLE_WORKSPACE_SIZE_U32 * sizeof(unsigned))
|
||
|
|
size_t HUF_buildCTable_wksp (HUF_CElt* tree,
|
||
|
|
const unsigned* count, U32 maxSymbolValue, U32 maxNbBits,
|
||
|
|
void* workSpace, size_t wkspSize);
|
||
|
|
|
||
|
|
/*! HUF_readStats() :
|
||
|
|
* Read compact Huffman tree, saved by HUF_writeCTable().
|
||
|
|
* `huffWeight` is destination buffer.
|
||
|
|
* @return : size read from `src` , or an error Code .
|
||
|
|
* Note : Needed by HUF_readCTable() and HUF_readDTableXn() . */
|
||
|
|
size_t HUF_readStats(BYTE* huffWeight, size_t hwSize,
|
||
|
|
U32* rankStats, U32* nbSymbolsPtr, U32* tableLogPtr,
|
||
|
|
const void* src, size_t srcSize);
|
||
|
|
|
||
|
|
/** HUF_readCTable() :
|
||
|
|
* Loading a CTable saved with HUF_writeCTable() */
|
||
|
|
size_t HUF_readCTable (HUF_CElt* CTable, unsigned* maxSymbolValuePtr, const void* src, size_t srcSize, unsigned *hasZeroWeights);
|
||
|
|
|
||
|
|
/** HUF_getNbBits() :
|
||
|
|
* Read nbBits from CTable symbolTable, for symbol `symbolValue` presumed <= HUF_SYMBOLVALUE_MAX
|
||
|
|
* Note 1 : is not inlined, as HUF_CElt definition is private
|
||
|
|
* Note 2 : const void* used, so that it can provide a statically allocated table as argument (which uses type U32) */
|
||
|
|
U32 HUF_getNbBits(const void* symbolTable, U32 symbolValue);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* HUF_decompress() does the following:
|
||
|
|
* 1. select the decompression algorithm (X1, X2) based on pre-computed heuristics
|
||
|
|
* 2. build Huffman table from save, using HUF_readDTableX?()
|
||
|
|
* 3. decode 1 or 4 segments in parallel using HUF_decompress?X?_usingDTable()
|
||
|
|
*/
|
||
|
|
|
||
|
|
/** HUF_selectDecoder() :
|
||
|
|
* Tells which decoder is likely to decode faster,
|
||
|
|
* based on a set of pre-computed metrics.
|
||
|
|
* @return : 0==HUF_decompress4X1, 1==HUF_decompress4X2 .
|
||
|
|
* Assumption : 0 < dstSize <= 128 KB */
|
||
|
|
U32 HUF_selectDecoder (size_t dstSize, size_t cSrcSize);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The minimum workspace size for the `workSpace` used in
|
||
|
|
* HUF_readDTableX1_wksp() and HUF_readDTableX2_wksp().
|
||
|
|
*
|
||
|
|
* The space used depends on HUF_TABLELOG_MAX, ranging from ~1500 bytes when
|
||
|
|
* HUF_TABLE_LOG_MAX=12 to ~1850 bytes when HUF_TABLE_LOG_MAX=15.
|
||
|
|
* Buffer overflow errors may potentially occur if code modifications result in
|
||
|
|
* a required workspace size greater than that specified in the following
|
||
|
|
* macro.
|
||
|
|
*/
|
||
|
|
#define HUF_DECOMPRESS_WORKSPACE_SIZE (2 << 10)
|
||
|
|
#define HUF_DECOMPRESS_WORKSPACE_SIZE_U32 (HUF_DECOMPRESS_WORKSPACE_SIZE / sizeof(U32))
|
||
|
|
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X2
|
||
|
|
size_t HUF_readDTableX1 (HUF_DTable* DTable, const void* src, size_t srcSize);
|
||
|
|
size_t HUF_readDTableX1_wksp (HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize);
|
||
|
|
#endif
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_readDTableX2 (HUF_DTable* DTable, const void* src, size_t srcSize);
|
||
|
|
size_t HUF_readDTableX2_wksp (HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
size_t HUF_decompress4X_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X2
|
||
|
|
size_t HUF_decompress4X1_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
|
||
|
|
#endif
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_decompress4X2_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* ====================== */
|
||
|
|
/* single stream variants */
|
||
|
|
/* ====================== */
|
||
|
|
|
||
|
|
size_t HUF_compress1X (void* dst, size_t dstSize, const void* src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog);
|
||
|
|
size_t HUF_compress1X_wksp (void* dst, size_t dstSize, const void* src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog, void* workSpace, size_t wkspSize); /**< `workSpace` must be a table of at least HUF_WORKSPACE_SIZE_U32 unsigned */
|
||
|
|
size_t HUF_compress1X_usingCTable(void* dst, size_t dstSize, const void* src, size_t srcSize, const HUF_CElt* CTable);
|
||
|
|
/** HUF_compress1X_repeat() :
|
||
|
|
* Same as HUF_compress1X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none.
|
||
|
|
* If it uses hufTable it does not modify hufTable or repeat.
|
||
|
|
* If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used.
|
||
|
|
* If preferRepeat then the old table will always be used if valid. */
|
||
|
|
size_t HUF_compress1X_repeat(void* dst, size_t dstSize,
|
||
|
|
const void* src, size_t srcSize,
|
||
|
|
unsigned maxSymbolValue, unsigned tableLog,
|
||
|
|
void* workSpace, size_t wkspSize, /**< `workSpace` must be aligned on 4-bytes boundaries, `wkspSize` must be >= HUF_WORKSPACE_SIZE */
|
||
|
|
HUF_CElt* hufTable, HUF_repeat* repeat, int preferRepeat, int bmi2);
|
||
|
|
|
||
|
|
size_t HUF_decompress1X1 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /* single-symbol decoder */
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_decompress1X2 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /* double-symbol decoder */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
size_t HUF_decompress1X_DCtx (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize);
|
||
|
|
size_t HUF_decompress1X_DCtx_wksp (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize);
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X2
|
||
|
|
size_t HUF_decompress1X1_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */
|
||
|
|
size_t HUF_decompress1X1_DCtx_wksp(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize); /**< single-symbol decoder */
|
||
|
|
#endif
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_decompress1X2_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */
|
||
|
|
size_t HUF_decompress1X2_DCtx_wksp(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize); /**< double-symbols decoder */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
size_t HUF_decompress1X_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable); /**< automatic selection of sing or double symbol decoder, based on DTable */
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X2
|
||
|
|
size_t HUF_decompress1X1_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
|
||
|
|
#endif
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X1
|
||
|
|
size_t HUF_decompress1X2_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* BMI2 variants.
|
||
|
|
* If the CPU has BMI2 support, pass bmi2=1, otherwise pass bmi2=0.
|
||
|
|
*/
|
||
|
|
size_t HUF_decompress1X_usingDTable_bmi2(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable, int bmi2);
|
||
|
|
#ifndef HUF_FORCE_DECOMPRESS_X2
|
||
|
|
size_t HUF_decompress1X1_DCtx_wksp_bmi2(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize, int bmi2);
|
||
|
|
#endif
|
||
|
|
size_t HUF_decompress4X_usingDTable_bmi2(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable, int bmi2);
|
||
|
|
size_t HUF_decompress4X_hufOnly_wksp_bmi2(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize, int bmi2);
|
||
|
|
|
||
|
|
#endif /* HUF_STATIC_LINKING_ONLY */
|
||
|
|
|
||
|
|
#if defined (__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|