xref: /openbmc/linux/lib/zstd/compress/zstd_lazy.h (revision 2cf1c348)
1 /*
2  * Copyright (c) Yann Collet, Facebook, Inc.
3  * All rights reserved.
4  *
5  * This source code is licensed under both the BSD-style license (found in the
6  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
7  * in the COPYING file in the root directory of this source tree).
8  * You may select, at your option, one of the above-listed licenses.
9  */
10 
11 #ifndef ZSTD_LAZY_H
12 #define ZSTD_LAZY_H
13 
14 
15 #include "zstd_compress_internal.h"
16 
17 /*
18  * Dedicated Dictionary Search Structure bucket log. In the
19  * ZSTD_dedicatedDictSearch mode, the hashTable has
20  * 2 ** ZSTD_LAZY_DDSS_BUCKET_LOG entries in each bucket, rather than just
21  * one.
22  */
23 #define ZSTD_LAZY_DDSS_BUCKET_LOG 2
24 
25 U32 ZSTD_insertAndFindFirstIndex(ZSTD_matchState_t* ms, const BYTE* ip);
26 
27 void ZSTD_dedicatedDictSearch_lazy_loadDictionary(ZSTD_matchState_t* ms, const BYTE* const ip);
28 
29 void ZSTD_preserveUnsortedMark (U32* const table, U32 const size, U32 const reducerValue);  /*! used in ZSTD_reduceIndex(). preemptively increase value of ZSTD_DUBT_UNSORTED_MARK */
30 
31 size_t ZSTD_compressBlock_btlazy2(
32         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
33         void const* src, size_t srcSize);
34 size_t ZSTD_compressBlock_lazy2(
35         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
36         void const* src, size_t srcSize);
37 size_t ZSTD_compressBlock_lazy(
38         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
39         void const* src, size_t srcSize);
40 size_t ZSTD_compressBlock_greedy(
41         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
42         void const* src, size_t srcSize);
43 
44 size_t ZSTD_compressBlock_btlazy2_dictMatchState(
45         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
46         void const* src, size_t srcSize);
47 size_t ZSTD_compressBlock_lazy2_dictMatchState(
48         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
49         void const* src, size_t srcSize);
50 size_t ZSTD_compressBlock_lazy_dictMatchState(
51         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
52         void const* src, size_t srcSize);
53 size_t ZSTD_compressBlock_greedy_dictMatchState(
54         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
55         void const* src, size_t srcSize);
56 
57 size_t ZSTD_compressBlock_lazy2_dedicatedDictSearch(
58         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
59         void const* src, size_t srcSize);
60 size_t ZSTD_compressBlock_lazy_dedicatedDictSearch(
61         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
62         void const* src, size_t srcSize);
63 size_t ZSTD_compressBlock_greedy_dedicatedDictSearch(
64         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
65         void const* src, size_t srcSize);
66 
67 size_t ZSTD_compressBlock_greedy_extDict(
68         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
69         void const* src, size_t srcSize);
70 size_t ZSTD_compressBlock_lazy_extDict(
71         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
72         void const* src, size_t srcSize);
73 size_t ZSTD_compressBlock_lazy2_extDict(
74         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
75         void const* src, size_t srcSize);
76 size_t ZSTD_compressBlock_btlazy2_extDict(
77         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
78         void const* src, size_t srcSize);
79 
80 
81 #endif /* ZSTD_LAZY_H */
82