tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
2/*
3 * Copyright (c) Meta Platforms, Inc. and affiliates.
4 * All rights reserved.
5 *
6 * This source code is licensed under both the BSD-style license (found in the
7 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
8 * in the COPYING file in the root directory of this source tree).
9 * You may select, at your option, one of the above-listed licenses.
10 */
11
12#ifndef ZSTD_LAZY_H
13#define ZSTD_LAZY_H
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#define ZSTD_ROW_HASH_TAG_BITS 8 /* nb bits to use for the tag */
26
27#if !defined(ZSTD_EXCLUDE_GREEDY_BLOCK_COMPRESSOR) \
28 || !defined(ZSTD_EXCLUDE_LAZY_BLOCK_COMPRESSOR) \
29 || !defined(ZSTD_EXCLUDE_LAZY2_BLOCK_COMPRESSOR) \
30 || !defined(ZSTD_EXCLUDE_BTLAZY2_BLOCK_COMPRESSOR)
31U32 ZSTD_insertAndFindFirstIndex(ZSTD_MatchState_t* ms, const BYTE* ip);
32void ZSTD_row_update(ZSTD_MatchState_t* const ms, const BYTE* ip);
33
34void ZSTD_dedicatedDictSearch_lazy_loadDictionary(ZSTD_MatchState_t* ms, const BYTE* const ip);
35
36void ZSTD_preserveUnsortedMark (U32* const table, U32 const size, U32 const reducerValue); /*! used in ZSTD_reduceIndex(). preemptively increase value of ZSTD_DUBT_UNSORTED_MARK */
37#endif
38
39#ifndef ZSTD_EXCLUDE_GREEDY_BLOCK_COMPRESSOR
40size_t ZSTD_compressBlock_greedy(
41 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
42 void const* src, size_t srcSize);
43size_t ZSTD_compressBlock_greedy_row(
44 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
45 void const* src, size_t srcSize);
46size_t ZSTD_compressBlock_greedy_dictMatchState(
47 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
48 void const* src, size_t srcSize);
49size_t ZSTD_compressBlock_greedy_dictMatchState_row(
50 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
51 void const* src, size_t srcSize);
52size_t ZSTD_compressBlock_greedy_dedicatedDictSearch(
53 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
54 void const* src, size_t srcSize);
55size_t ZSTD_compressBlock_greedy_dedicatedDictSearch_row(
56 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
57 void const* src, size_t srcSize);
58size_t ZSTD_compressBlock_greedy_extDict(
59 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
60 void const* src, size_t srcSize);
61size_t ZSTD_compressBlock_greedy_extDict_row(
62 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
63 void const* src, size_t srcSize);
64
65#define ZSTD_COMPRESSBLOCK_GREEDY ZSTD_compressBlock_greedy
66#define ZSTD_COMPRESSBLOCK_GREEDY_ROW ZSTD_compressBlock_greedy_row
67#define ZSTD_COMPRESSBLOCK_GREEDY_DICTMATCHSTATE ZSTD_compressBlock_greedy_dictMatchState
68#define ZSTD_COMPRESSBLOCK_GREEDY_DICTMATCHSTATE_ROW ZSTD_compressBlock_greedy_dictMatchState_row
69#define ZSTD_COMPRESSBLOCK_GREEDY_DEDICATEDDICTSEARCH ZSTD_compressBlock_greedy_dedicatedDictSearch
70#define ZSTD_COMPRESSBLOCK_GREEDY_DEDICATEDDICTSEARCH_ROW ZSTD_compressBlock_greedy_dedicatedDictSearch_row
71#define ZSTD_COMPRESSBLOCK_GREEDY_EXTDICT ZSTD_compressBlock_greedy_extDict
72#define ZSTD_COMPRESSBLOCK_GREEDY_EXTDICT_ROW ZSTD_compressBlock_greedy_extDict_row
73#else
74#define ZSTD_COMPRESSBLOCK_GREEDY NULL
75#define ZSTD_COMPRESSBLOCK_GREEDY_ROW NULL
76#define ZSTD_COMPRESSBLOCK_GREEDY_DICTMATCHSTATE NULL
77#define ZSTD_COMPRESSBLOCK_GREEDY_DICTMATCHSTATE_ROW NULL
78#define ZSTD_COMPRESSBLOCK_GREEDY_DEDICATEDDICTSEARCH NULL
79#define ZSTD_COMPRESSBLOCK_GREEDY_DEDICATEDDICTSEARCH_ROW NULL
80#define ZSTD_COMPRESSBLOCK_GREEDY_EXTDICT NULL
81#define ZSTD_COMPRESSBLOCK_GREEDY_EXTDICT_ROW NULL
82#endif
83
84#ifndef ZSTD_EXCLUDE_LAZY_BLOCK_COMPRESSOR
85size_t ZSTD_compressBlock_lazy(
86 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
87 void const* src, size_t srcSize);
88size_t ZSTD_compressBlock_lazy_row(
89 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
90 void const* src, size_t srcSize);
91size_t ZSTD_compressBlock_lazy_dictMatchState(
92 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
93 void const* src, size_t srcSize);
94size_t ZSTD_compressBlock_lazy_dictMatchState_row(
95 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
96 void const* src, size_t srcSize);
97size_t ZSTD_compressBlock_lazy_dedicatedDictSearch(
98 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
99 void const* src, size_t srcSize);
100size_t ZSTD_compressBlock_lazy_dedicatedDictSearch_row(
101 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
102 void const* src, size_t srcSize);
103size_t ZSTD_compressBlock_lazy_extDict(
104 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
105 void const* src, size_t srcSize);
106size_t ZSTD_compressBlock_lazy_extDict_row(
107 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
108 void const* src, size_t srcSize);
109
110#define ZSTD_COMPRESSBLOCK_LAZY ZSTD_compressBlock_lazy
111#define ZSTD_COMPRESSBLOCK_LAZY_ROW ZSTD_compressBlock_lazy_row
112#define ZSTD_COMPRESSBLOCK_LAZY_DICTMATCHSTATE ZSTD_compressBlock_lazy_dictMatchState
113#define ZSTD_COMPRESSBLOCK_LAZY_DICTMATCHSTATE_ROW ZSTD_compressBlock_lazy_dictMatchState_row
114#define ZSTD_COMPRESSBLOCK_LAZY_DEDICATEDDICTSEARCH ZSTD_compressBlock_lazy_dedicatedDictSearch
115#define ZSTD_COMPRESSBLOCK_LAZY_DEDICATEDDICTSEARCH_ROW ZSTD_compressBlock_lazy_dedicatedDictSearch_row
116#define ZSTD_COMPRESSBLOCK_LAZY_EXTDICT ZSTD_compressBlock_lazy_extDict
117#define ZSTD_COMPRESSBLOCK_LAZY_EXTDICT_ROW ZSTD_compressBlock_lazy_extDict_row
118#else
119#define ZSTD_COMPRESSBLOCK_LAZY NULL
120#define ZSTD_COMPRESSBLOCK_LAZY_ROW NULL
121#define ZSTD_COMPRESSBLOCK_LAZY_DICTMATCHSTATE NULL
122#define ZSTD_COMPRESSBLOCK_LAZY_DICTMATCHSTATE_ROW NULL
123#define ZSTD_COMPRESSBLOCK_LAZY_DEDICATEDDICTSEARCH NULL
124#define ZSTD_COMPRESSBLOCK_LAZY_DEDICATEDDICTSEARCH_ROW NULL
125#define ZSTD_COMPRESSBLOCK_LAZY_EXTDICT NULL
126#define ZSTD_COMPRESSBLOCK_LAZY_EXTDICT_ROW NULL
127#endif
128
129#ifndef ZSTD_EXCLUDE_LAZY2_BLOCK_COMPRESSOR
130size_t ZSTD_compressBlock_lazy2(
131 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
132 void const* src, size_t srcSize);
133size_t ZSTD_compressBlock_lazy2_row(
134 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
135 void const* src, size_t srcSize);
136size_t ZSTD_compressBlock_lazy2_dictMatchState(
137 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
138 void const* src, size_t srcSize);
139size_t ZSTD_compressBlock_lazy2_dictMatchState_row(
140 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
141 void const* src, size_t srcSize);
142size_t ZSTD_compressBlock_lazy2_dedicatedDictSearch(
143 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
144 void const* src, size_t srcSize);
145size_t ZSTD_compressBlock_lazy2_dedicatedDictSearch_row(
146 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
147 void const* src, size_t srcSize);
148size_t ZSTD_compressBlock_lazy2_extDict(
149 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
150 void const* src, size_t srcSize);
151size_t ZSTD_compressBlock_lazy2_extDict_row(
152 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
153 void const* src, size_t srcSize);
154
155#define ZSTD_COMPRESSBLOCK_LAZY2 ZSTD_compressBlock_lazy2
156#define ZSTD_COMPRESSBLOCK_LAZY2_ROW ZSTD_compressBlock_lazy2_row
157#define ZSTD_COMPRESSBLOCK_LAZY2_DICTMATCHSTATE ZSTD_compressBlock_lazy2_dictMatchState
158#define ZSTD_COMPRESSBLOCK_LAZY2_DICTMATCHSTATE_ROW ZSTD_compressBlock_lazy2_dictMatchState_row
159#define ZSTD_COMPRESSBLOCK_LAZY2_DEDICATEDDICTSEARCH ZSTD_compressBlock_lazy2_dedicatedDictSearch
160#define ZSTD_COMPRESSBLOCK_LAZY2_DEDICATEDDICTSEARCH_ROW ZSTD_compressBlock_lazy2_dedicatedDictSearch_row
161#define ZSTD_COMPRESSBLOCK_LAZY2_EXTDICT ZSTD_compressBlock_lazy2_extDict
162#define ZSTD_COMPRESSBLOCK_LAZY2_EXTDICT_ROW ZSTD_compressBlock_lazy2_extDict_row
163#else
164#define ZSTD_COMPRESSBLOCK_LAZY2 NULL
165#define ZSTD_COMPRESSBLOCK_LAZY2_ROW NULL
166#define ZSTD_COMPRESSBLOCK_LAZY2_DICTMATCHSTATE NULL
167#define ZSTD_COMPRESSBLOCK_LAZY2_DICTMATCHSTATE_ROW NULL
168#define ZSTD_COMPRESSBLOCK_LAZY2_DEDICATEDDICTSEARCH NULL
169#define ZSTD_COMPRESSBLOCK_LAZY2_DEDICATEDDICTSEARCH_ROW NULL
170#define ZSTD_COMPRESSBLOCK_LAZY2_EXTDICT NULL
171#define ZSTD_COMPRESSBLOCK_LAZY2_EXTDICT_ROW NULL
172#endif
173
174#ifndef ZSTD_EXCLUDE_BTLAZY2_BLOCK_COMPRESSOR
175size_t ZSTD_compressBlock_btlazy2(
176 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
177 void const* src, size_t srcSize);
178size_t ZSTD_compressBlock_btlazy2_dictMatchState(
179 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
180 void const* src, size_t srcSize);
181size_t ZSTD_compressBlock_btlazy2_extDict(
182 ZSTD_MatchState_t* ms, SeqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
183 void const* src, size_t srcSize);
184
185#define ZSTD_COMPRESSBLOCK_BTLAZY2 ZSTD_compressBlock_btlazy2
186#define ZSTD_COMPRESSBLOCK_BTLAZY2_DICTMATCHSTATE ZSTD_compressBlock_btlazy2_dictMatchState
187#define ZSTD_COMPRESSBLOCK_BTLAZY2_EXTDICT ZSTD_compressBlock_btlazy2_extDict
188#else
189#define ZSTD_COMPRESSBLOCK_BTLAZY2 NULL
190#define ZSTD_COMPRESSBLOCK_BTLAZY2_DICTMATCHSTATE NULL
191#define ZSTD_COMPRESSBLOCK_BTLAZY2_EXTDICT NULL
192#endif
193
194#endif /* ZSTD_LAZY_H */