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khenaidooac637102019-01-14 15:44:34 -05001/* ******************************************************************
Scott Bakerbeb3cfa2019-10-01 14:44:30 -07002 huff0 huffman codec,
3 part of Finite State Entropy library
4 Copyright (C) 2013-present, Yann Collet.
khenaidooac637102019-01-14 15:44:34 -05005
6 BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
7
8 Redistribution and use in source and binary forms, with or without
9 modification, are permitted provided that the following conditions are
10 met:
11
12 * Redistributions of source code must retain the above copyright
13 notice, this list of conditions and the following disclaimer.
14 * Redistributions in binary form must reproduce the above
15 copyright notice, this list of conditions and the following disclaimer
16 in the documentation and/or other materials provided with the
17 distribution.
18
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31 You can contact the author at :
32 - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
33****************************************************************** */
34
35#if defined (__cplusplus)
36extern "C" {
37#endif
38
39#ifndef HUF_H_298734234
40#define HUF_H_298734234
41
42/* *** Dependencies *** */
43#include <stddef.h> /* size_t */
44
45
46/* *** library symbols visibility *** */
47/* Note : when linking with -fvisibility=hidden on gcc, or by default on Visual,
48 * HUF symbols remain "private" (internal symbols for library only).
49 * Set macro FSE_DLL_EXPORT to 1 if you want HUF symbols visible on DLL interface */
50#if defined(FSE_DLL_EXPORT) && (FSE_DLL_EXPORT==1) && defined(__GNUC__) && (__GNUC__ >= 4)
51# define HUF_PUBLIC_API __attribute__ ((visibility ("default")))
52#elif defined(FSE_DLL_EXPORT) && (FSE_DLL_EXPORT==1) /* Visual expected */
53# define HUF_PUBLIC_API __declspec(dllexport)
54#elif defined(FSE_DLL_IMPORT) && (FSE_DLL_IMPORT==1)
55# define HUF_PUBLIC_API __declspec(dllimport) /* not required, just to generate faster code (saves a function pointer load from IAT and an indirect jump) */
56#else
57# define HUF_PUBLIC_API
58#endif
59
60
61/* ========================== */
62/* *** simple functions *** */
63/* ========================== */
64
65/** HUF_compress() :
66 * Compress content from buffer 'src', of size 'srcSize', into buffer 'dst'.
67 * 'dst' buffer must be already allocated.
68 * Compression runs faster if `dstCapacity` >= HUF_compressBound(srcSize).
69 * `srcSize` must be <= `HUF_BLOCKSIZE_MAX` == 128 KB.
70 * @return : size of compressed data (<= `dstCapacity`).
71 * Special values : if return == 0, srcData is not compressible => Nothing is stored within dst !!!
72 * if HUF_isError(return), compression failed (more details using HUF_getErrorName())
73 */
74HUF_PUBLIC_API size_t HUF_compress(void* dst, size_t dstCapacity,
75 const void* src, size_t srcSize);
76
77/** HUF_decompress() :
78 * Decompress HUF data from buffer 'cSrc', of size 'cSrcSize',
79 * into already allocated buffer 'dst', of minimum size 'dstSize'.
80 * `originalSize` : **must** be the ***exact*** size of original (uncompressed) data.
81 * Note : in contrast with FSE, HUF_decompress can regenerate
82 * RLE (cSrcSize==1) and uncompressed (cSrcSize==dstSize) data,
83 * because it knows size to regenerate (originalSize).
84 * @return : size of regenerated data (== originalSize),
85 * or an error code, which can be tested using HUF_isError()
86 */
87HUF_PUBLIC_API size_t HUF_decompress(void* dst, size_t originalSize,
88 const void* cSrc, size_t cSrcSize);
89
90
91/* *** Tool functions *** */
92#define HUF_BLOCKSIZE_MAX (128 * 1024) /**< maximum input size for a single block compressed with HUF_compress */
93HUF_PUBLIC_API size_t HUF_compressBound(size_t size); /**< maximum compressed size (worst case) */
94
95/* Error Management */
96HUF_PUBLIC_API unsigned HUF_isError(size_t code); /**< tells if a return value is an error code */
97HUF_PUBLIC_API const char* HUF_getErrorName(size_t code); /**< provides error code string (useful for debugging) */
98
99
100/* *** Advanced function *** */
101
102/** HUF_compress2() :
103 * Same as HUF_compress(), but offers control over `maxSymbolValue` and `tableLog`.
104 * `maxSymbolValue` must be <= HUF_SYMBOLVALUE_MAX .
105 * `tableLog` must be `<= HUF_TABLELOG_MAX` . */
106HUF_PUBLIC_API size_t HUF_compress2 (void* dst, size_t dstCapacity,
107 const void* src, size_t srcSize,
108 unsigned maxSymbolValue, unsigned tableLog);
109
110/** HUF_compress4X_wksp() :
111 * Same as HUF_compress2(), but uses externally allocated `workSpace`.
112 * `workspace` must have minimum alignment of 4, and be at least as large as HUF_WORKSPACE_SIZE */
113#define HUF_WORKSPACE_SIZE (6 << 10)
114#define HUF_WORKSPACE_SIZE_U32 (HUF_WORKSPACE_SIZE / sizeof(U32))
115HUF_PUBLIC_API size_t HUF_compress4X_wksp (void* dst, size_t dstCapacity,
116 const void* src, size_t srcSize,
117 unsigned maxSymbolValue, unsigned tableLog,
118 void* workSpace, size_t wkspSize);
119
120#endif /* HUF_H_298734234 */
121
122/* ******************************************************************
123 * WARNING !!
124 * The following section contains advanced and experimental definitions
125 * which shall never be used in the context of a dynamic library,
126 * because they are not guaranteed to remain stable in the future.
127 * Only consider them in association with static linking.
128 * *****************************************************************/
129#if defined(HUF_STATIC_LINKING_ONLY) && !defined(HUF_H_HUF_STATIC_LINKING_ONLY)
130#define HUF_H_HUF_STATIC_LINKING_ONLY
131
132/* *** Dependencies *** */
133#include "mem.h" /* U32 */
134
135
136/* *** Constants *** */
137#define HUF_TABLELOG_MAX 12 /* max runtime value of tableLog (due to static allocation); can be modified up to HUF_ABSOLUTEMAX_TABLELOG */
138#define HUF_TABLELOG_DEFAULT 11 /* default tableLog value when none specified */
139#define HUF_SYMBOLVALUE_MAX 255
140
141#define HUF_TABLELOG_ABSOLUTEMAX 15 /* absolute limit of HUF_MAX_TABLELOG. Beyond that value, code does not work */
142#if (HUF_TABLELOG_MAX > HUF_TABLELOG_ABSOLUTEMAX)
143# error "HUF_TABLELOG_MAX is too large !"
144#endif
145
146
147/* ****************************************
148* Static allocation
149******************************************/
150/* HUF buffer bounds */
151#define HUF_CTABLEBOUND 129
152#define HUF_BLOCKBOUND(size) (size + (size>>8) + 8) /* only true when incompressible is pre-filtered with fast heuristic */
153#define HUF_COMPRESSBOUND(size) (HUF_CTABLEBOUND + HUF_BLOCKBOUND(size)) /* Macro version, useful for static allocation */
154
155/* static allocation of HUF's Compression Table */
156#define HUF_CTABLE_SIZE_U32(maxSymbolValue) ((maxSymbolValue)+1) /* Use tables of U32, for proper alignment */
157#define HUF_CTABLE_SIZE(maxSymbolValue) (HUF_CTABLE_SIZE_U32(maxSymbolValue) * sizeof(U32))
158#define HUF_CREATE_STATIC_CTABLE(name, maxSymbolValue) \
159 U32 name##hb[HUF_CTABLE_SIZE_U32(maxSymbolValue)]; \
160 void* name##hv = &(name##hb); \
161 HUF_CElt* name = (HUF_CElt*)(name##hv) /* no final ; */
162
163/* static allocation of HUF's DTable */
164typedef U32 HUF_DTable;
165#define HUF_DTABLE_SIZE(maxTableLog) (1 + (1<<(maxTableLog)))
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700166#define HUF_CREATE_STATIC_DTABLEX1(DTable, maxTableLog) \
khenaidooac637102019-01-14 15:44:34 -0500167 HUF_DTable DTable[HUF_DTABLE_SIZE((maxTableLog)-1)] = { ((U32)((maxTableLog)-1) * 0x01000001) }
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700168#define HUF_CREATE_STATIC_DTABLEX2(DTable, maxTableLog) \
khenaidooac637102019-01-14 15:44:34 -0500169 HUF_DTable DTable[HUF_DTABLE_SIZE(maxTableLog)] = { ((U32)(maxTableLog) * 0x01000001) }
170
171
172/* ****************************************
173* Advanced decompression functions
174******************************************/
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700175size_t HUF_decompress4X1 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */
176#ifndef HUF_FORCE_DECOMPRESS_X1
177size_t HUF_decompress4X2 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */
178#endif
khenaidooac637102019-01-14 15:44:34 -0500179
180size_t HUF_decompress4X_DCtx (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< decodes RLE and uncompressed */
181size_t HUF_decompress4X_hufOnly(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< considers RLE and uncompressed as errors */
182size_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 */
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700183size_t HUF_decompress4X1_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */
184size_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 */
185#ifndef HUF_FORCE_DECOMPRESS_X1
186size_t HUF_decompress4X2_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */
187size_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 */
188#endif
khenaidooac637102019-01-14 15:44:34 -0500189
190
191/* ****************************************
192 * HUF detailed API
193 * ****************************************/
194
195/*! HUF_compress() does the following:
196 * 1. count symbol occurrence from source[] into table count[] using FSE_count() (exposed within "fse.h")
197 * 2. (optional) refine tableLog using HUF_optimalTableLog()
198 * 3. build Huffman table from count using HUF_buildCTable()
199 * 4. save Huffman table to memory buffer using HUF_writeCTable()
200 * 5. encode the data stream using HUF_compress4X_usingCTable()
201 *
202 * The following API allows targeting specific sub-functions for advanced tasks.
203 * For example, it's possible to compress several blocks using the same 'CTable',
204 * or to save and regenerate 'CTable' using external methods.
205 */
206unsigned HUF_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue);
207typedef struct HUF_CElt_s HUF_CElt; /* incomplete type */
208size_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 */
209size_t HUF_writeCTable (void* dst, size_t maxDstSize, const HUF_CElt* CTable, unsigned maxSymbolValue, unsigned huffLog);
210size_t HUF_compress4X_usingCTable(void* dst, size_t dstSize, const void* src, size_t srcSize, const HUF_CElt* CTable);
211
212typedef enum {
213 HUF_repeat_none, /**< Cannot use the previous table */
214 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 */
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700215 HUF_repeat_valid /**< Can use the previous table and it is assumed to be valid */
khenaidooac637102019-01-14 15:44:34 -0500216 } HUF_repeat;
217/** HUF_compress4X_repeat() :
218 * Same as HUF_compress4X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none.
219 * If it uses hufTable it does not modify hufTable or repeat.
220 * If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used.
221 * If preferRepeat then the old table will always be used if valid. */
222size_t HUF_compress4X_repeat(void* dst, size_t dstSize,
223 const void* src, size_t srcSize,
224 unsigned maxSymbolValue, unsigned tableLog,
225 void* workSpace, size_t wkspSize, /**< `workSpace` must be aligned on 4-bytes boundaries, `wkspSize` must be >= HUF_WORKSPACE_SIZE */
226 HUF_CElt* hufTable, HUF_repeat* repeat, int preferRepeat, int bmi2);
227
228/** HUF_buildCTable_wksp() :
229 * Same as HUF_buildCTable(), but using externally allocated scratch buffer.
230 * `workSpace` must be aligned on 4-bytes boundaries, and its size must be >= HUF_CTABLE_WORKSPACE_SIZE.
231 */
232#define HUF_CTABLE_WORKSPACE_SIZE_U32 (2*HUF_SYMBOLVALUE_MAX +1 +1)
233#define HUF_CTABLE_WORKSPACE_SIZE (HUF_CTABLE_WORKSPACE_SIZE_U32 * sizeof(unsigned))
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700234size_t HUF_buildCTable_wksp (HUF_CElt* tree,
235 const unsigned* count, U32 maxSymbolValue, U32 maxNbBits,
236 void* workSpace, size_t wkspSize);
khenaidooac637102019-01-14 15:44:34 -0500237
238/*! HUF_readStats() :
239 * Read compact Huffman tree, saved by HUF_writeCTable().
240 * `huffWeight` is destination buffer.
241 * @return : size read from `src` , or an error Code .
242 * Note : Needed by HUF_readCTable() and HUF_readDTableXn() . */
243size_t HUF_readStats(BYTE* huffWeight, size_t hwSize,
244 U32* rankStats, U32* nbSymbolsPtr, U32* tableLogPtr,
245 const void* src, size_t srcSize);
246
247/** HUF_readCTable() :
248 * Loading a CTable saved with HUF_writeCTable() */
249size_t HUF_readCTable (HUF_CElt* CTable, unsigned* maxSymbolValuePtr, const void* src, size_t srcSize);
250
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700251/** HUF_getNbBits() :
252 * Read nbBits from CTable symbolTable, for symbol `symbolValue` presumed <= HUF_SYMBOLVALUE_MAX
253 * Note 1 : is not inlined, as HUF_CElt definition is private
254 * Note 2 : const void* used, so that it can provide a statically allocated table as argument (which uses type U32) */
255U32 HUF_getNbBits(const void* symbolTable, U32 symbolValue);
khenaidooac637102019-01-14 15:44:34 -0500256
257/*
258 * HUF_decompress() does the following:
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700259 * 1. select the decompression algorithm (X1, X2) based on pre-computed heuristics
khenaidooac637102019-01-14 15:44:34 -0500260 * 2. build Huffman table from save, using HUF_readDTableX?()
261 * 3. decode 1 or 4 segments in parallel using HUF_decompress?X?_usingDTable()
262 */
263
264/** HUF_selectDecoder() :
265 * Tells which decoder is likely to decode faster,
266 * based on a set of pre-computed metrics.
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700267 * @return : 0==HUF_decompress4X1, 1==HUF_decompress4X2 .
khenaidooac637102019-01-14 15:44:34 -0500268 * Assumption : 0 < dstSize <= 128 KB */
269U32 HUF_selectDecoder (size_t dstSize, size_t cSrcSize);
270
271/**
272 * The minimum workspace size for the `workSpace` used in
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700273 * HUF_readDTableX1_wksp() and HUF_readDTableX2_wksp().
khenaidooac637102019-01-14 15:44:34 -0500274 *
275 * The space used depends on HUF_TABLELOG_MAX, ranging from ~1500 bytes when
276 * HUF_TABLE_LOG_MAX=12 to ~1850 bytes when HUF_TABLE_LOG_MAX=15.
277 * Buffer overflow errors may potentially occur if code modifications result in
278 * a required workspace size greater than that specified in the following
279 * macro.
280 */
281#define HUF_DECOMPRESS_WORKSPACE_SIZE (2 << 10)
282#define HUF_DECOMPRESS_WORKSPACE_SIZE_U32 (HUF_DECOMPRESS_WORKSPACE_SIZE / sizeof(U32))
283
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700284#ifndef HUF_FORCE_DECOMPRESS_X2
285size_t HUF_readDTableX1 (HUF_DTable* DTable, const void* src, size_t srcSize);
286size_t HUF_readDTableX1_wksp (HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize);
287#endif
288#ifndef HUF_FORCE_DECOMPRESS_X1
khenaidooac637102019-01-14 15:44:34 -0500289size_t HUF_readDTableX2 (HUF_DTable* DTable, const void* src, size_t srcSize);
290size_t HUF_readDTableX2_wksp (HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize);
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700291#endif
khenaidooac637102019-01-14 15:44:34 -0500292
293size_t HUF_decompress4X_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700294#ifndef HUF_FORCE_DECOMPRESS_X2
295size_t HUF_decompress4X1_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
296#endif
297#ifndef HUF_FORCE_DECOMPRESS_X1
khenaidooac637102019-01-14 15:44:34 -0500298size_t HUF_decompress4X2_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700299#endif
khenaidooac637102019-01-14 15:44:34 -0500300
301
302/* ====================== */
303/* single stream variants */
304/* ====================== */
305
306size_t HUF_compress1X (void* dst, size_t dstSize, const void* src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog);
307size_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 */
308size_t HUF_compress1X_usingCTable(void* dst, size_t dstSize, const void* src, size_t srcSize, const HUF_CElt* CTable);
309/** HUF_compress1X_repeat() :
310 * Same as HUF_compress1X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none.
311 * If it uses hufTable it does not modify hufTable or repeat.
312 * If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used.
313 * If preferRepeat then the old table will always be used if valid. */
314size_t HUF_compress1X_repeat(void* dst, size_t dstSize,
315 const void* src, size_t srcSize,
316 unsigned maxSymbolValue, unsigned tableLog,
317 void* workSpace, size_t wkspSize, /**< `workSpace` must be aligned on 4-bytes boundaries, `wkspSize` must be >= HUF_WORKSPACE_SIZE */
318 HUF_CElt* hufTable, HUF_repeat* repeat, int preferRepeat, int bmi2);
319
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700320size_t HUF_decompress1X1 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /* single-symbol decoder */
321#ifndef HUF_FORCE_DECOMPRESS_X1
322size_t HUF_decompress1X2 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /* double-symbol decoder */
323#endif
khenaidooac637102019-01-14 15:44:34 -0500324
325size_t HUF_decompress1X_DCtx (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize);
326size_t HUF_decompress1X_DCtx_wksp (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize, void* workSpace, size_t wkspSize);
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700327#ifndef HUF_FORCE_DECOMPRESS_X2
328size_t HUF_decompress1X1_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */
329size_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 */
330#endif
331#ifndef HUF_FORCE_DECOMPRESS_X1
332size_t HUF_decompress1X2_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */
333size_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 */
334#endif
khenaidooac637102019-01-14 15:44:34 -0500335
336size_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 */
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700337#ifndef HUF_FORCE_DECOMPRESS_X2
338size_t HUF_decompress1X1_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
339#endif
340#ifndef HUF_FORCE_DECOMPRESS_X1
khenaidooac637102019-01-14 15:44:34 -0500341size_t HUF_decompress1X2_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable);
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700342#endif
khenaidooac637102019-01-14 15:44:34 -0500343
344/* BMI2 variants.
345 * If the CPU has BMI2 support, pass bmi2=1, otherwise pass bmi2=0.
346 */
347size_t HUF_decompress1X_usingDTable_bmi2(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable, int bmi2);
Scott Bakerbeb3cfa2019-10-01 14:44:30 -0700348#ifndef HUF_FORCE_DECOMPRESS_X2
349size_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);
350#endif
khenaidooac637102019-01-14 15:44:34 -0500351size_t HUF_decompress4X_usingDTable_bmi2(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable, int bmi2);
352size_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);
353
354#endif /* HUF_STATIC_LINKING_ONLY */
355
356#if defined (__cplusplus)
357}
358#endif