Mercurial > public > mercurial-scm > hg-stable
annotate contrib/python-zstandard/zstd/common/huf.h @ 50828:d51a76b5262b
wrapfunction: use sysstr instead of bytes as argument in "schemes"
This is as valid and simpler, it will help us to eventually get ride of
`safehasattr`.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Fri, 03 Feb 2023 04:25:57 +0100 |
parents | 675775c33ab6 |
children |
rev | line source |
---|---|
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1 /* ****************************************************************** |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
2 huff0 huffman codec, |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
3 part of Finite State Entropy library |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
4 Copyright (C) 2013-present, Yann Collet. |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
5 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
6 BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php) |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
7 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
8 Redistribution and use in source and binary forms, with or without |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
9 modification, are permitted provided that the following conditions are |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
10 met: |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
11 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
12 * Redistributions of source code must retain the above copyright |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
13 notice, this list of conditions and the following disclaimer. |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
14 * Redistributions in binary form must reproduce the above |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
15 copyright notice, this list of conditions and the following disclaimer |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
16 in the documentation and/or other materials provided with the |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
17 distribution. |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
18 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
20 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
23 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
24 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
25 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
26 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
27 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
28 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
29 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
30 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
31 You can contact the author at : |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
32 - Source repository : https://github.com/Cyan4973/FiniteStateEntropy |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
33 ****************************************************************** */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
34 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
35 #if defined (__cplusplus) |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
36 extern "C" { |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
37 #endif |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
38 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
39 #ifndef HUF_H_298734234 |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
40 #define HUF_H_298734234 |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
41 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
42 /* *** Dependencies *** */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
43 #include <stddef.h> /* size_t */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
44 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
45 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
46 /* *** library symbols visibility *** */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
47 /* Note : when linking with -fvisibility=hidden on gcc, or by default on Visual, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
48 * HUF symbols remain "private" (internal symbols for library only). |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
49 * Set macro FSE_DLL_EXPORT to 1 if you want HUF symbols visible on DLL interface */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
50 #if defined(FSE_DLL_EXPORT) && (FSE_DLL_EXPORT==1) && defined(__GNUC__) && (__GNUC__ >= 4) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
51 # define HUF_PUBLIC_API __attribute__ ((visibility ("default"))) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
52 #elif defined(FSE_DLL_EXPORT) && (FSE_DLL_EXPORT==1) /* Visual expected */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
53 # define HUF_PUBLIC_API __declspec(dllexport) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
54 #elif defined(FSE_DLL_IMPORT) && (FSE_DLL_IMPORT==1) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
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) */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
56 #else |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
57 # define HUF_PUBLIC_API |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
58 #endif |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
59 |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
60 |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
61 /* ========================== */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
62 /* *** simple functions *** */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
63 /* ========================== */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
64 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
65 /** HUF_compress() : |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
66 * Compress content from buffer 'src', of size 'srcSize', into buffer 'dst'. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
67 * 'dst' buffer must be already allocated. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
68 * Compression runs faster if `dstCapacity` >= HUF_compressBound(srcSize). |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
69 * `srcSize` must be <= `HUF_BLOCKSIZE_MAX` == 128 KB. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
70 * @return : size of compressed data (<= `dstCapacity`). |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
71 * Special values : if return == 0, srcData is not compressible => Nothing is stored within dst !!! |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
72 * if HUF_isError(return), compression failed (more details using HUF_getErrorName()) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
73 */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
74 HUF_PUBLIC_API size_t HUF_compress(void* dst, size_t dstCapacity, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
75 const void* src, size_t srcSize); |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
76 |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
77 /** HUF_decompress() : |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
78 * Decompress HUF data from buffer 'cSrc', of size 'cSrcSize', |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
79 * into already allocated buffer 'dst', of minimum size 'dstSize'. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
80 * `originalSize` : **must** be the ***exact*** size of original (uncompressed) data. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
81 * Note : in contrast with FSE, HUF_decompress can regenerate |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
82 * RLE (cSrcSize==1) and uncompressed (cSrcSize==dstSize) data, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
83 * because it knows size to regenerate (originalSize). |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
84 * @return : size of regenerated data (== originalSize), |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
85 * or an error code, which can be tested using HUF_isError() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
86 */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
87 HUF_PUBLIC_API size_t HUF_decompress(void* dst, size_t originalSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
88 const void* cSrc, size_t cSrcSize); |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
89 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
90 |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
91 /* *** Tool functions *** */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
92 #define HUF_BLOCKSIZE_MAX (128 * 1024) /**< maximum input size for a single block compressed with HUF_compress */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
93 HUF_PUBLIC_API size_t HUF_compressBound(size_t size); /**< maximum compressed size (worst case) */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
94 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
95 /* Error Management */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
96 HUF_PUBLIC_API unsigned HUF_isError(size_t code); /**< tells if a return value is an error code */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
97 HUF_PUBLIC_API const char* HUF_getErrorName(size_t code); /**< provides error code string (useful for debugging) */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
98 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
99 |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
100 /* *** Advanced function *** */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
101 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
102 /** HUF_compress2() : |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
103 * Same as HUF_compress(), but offers control over `maxSymbolValue` and `tableLog`. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
104 * `maxSymbolValue` must be <= HUF_SYMBOLVALUE_MAX . |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
105 * `tableLog` must be `<= HUF_TABLELOG_MAX` . */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
106 HUF_PUBLIC_API size_t HUF_compress2 (void* dst, size_t dstCapacity, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
107 const void* src, size_t srcSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
108 unsigned maxSymbolValue, unsigned tableLog); |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
109 |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
110 /** HUF_compress4X_wksp() : |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
111 * Same as HUF_compress2(), but uses externally allocated `workSpace`. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
112 * `workspace` must have minimum alignment of 4, and be at least as large as HUF_WORKSPACE_SIZE */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
113 #define HUF_WORKSPACE_SIZE (6 << 10) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
114 #define HUF_WORKSPACE_SIZE_U32 (HUF_WORKSPACE_SIZE / sizeof(U32)) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
115 HUF_PUBLIC_API size_t HUF_compress4X_wksp (void* dst, size_t dstCapacity, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
116 const void* src, size_t srcSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
117 unsigned maxSymbolValue, unsigned tableLog, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
118 void* workSpace, size_t wkspSize); |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
119 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
120 #endif /* HUF_H_298734234 */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
121 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
122 /* ****************************************************************** |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
123 * WARNING !! |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
124 * The following section contains advanced and experimental definitions |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
125 * which shall never be used in the context of a dynamic library, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
126 * because they are not guaranteed to remain stable in the future. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
127 * Only consider them in association with static linking. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
128 * *****************************************************************/ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
129 #if defined(HUF_STATIC_LINKING_ONLY) && !defined(HUF_H_HUF_STATIC_LINKING_ONLY) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
130 #define HUF_H_HUF_STATIC_LINKING_ONLY |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
131 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
132 /* *** Dependencies *** */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
133 #include "mem.h" /* U32 */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
134 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
135 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
136 /* *** Constants *** */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
137 #define HUF_TABLELOG_MAX 12 /* max runtime value of tableLog (due to static allocation); can be modified up to HUF_ABSOLUTEMAX_TABLELOG */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
138 #define HUF_TABLELOG_DEFAULT 11 /* default tableLog value when none specified */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
139 #define HUF_SYMBOLVALUE_MAX 255 |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
140 |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
141 #define HUF_TABLELOG_ABSOLUTEMAX 15 /* absolute limit of HUF_MAX_TABLELOG. Beyond that value, code does not work */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
142 #if (HUF_TABLELOG_MAX > HUF_TABLELOG_ABSOLUTEMAX) |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
143 # error "HUF_TABLELOG_MAX is too large !" |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
144 #endif |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
145 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
146 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
147 /* **************************************** |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
148 * Static allocation |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
149 ******************************************/ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
150 /* HUF buffer bounds */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
151 #define HUF_CTABLEBOUND 129 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
152 #define HUF_BLOCKBOUND(size) (size + (size>>8) + 8) /* only true when incompressible is pre-filtered with fast heuristic */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
153 #define HUF_COMPRESSBOUND(size) (HUF_CTABLEBOUND + HUF_BLOCKBOUND(size)) /* Macro version, useful for static allocation */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
154 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
155 /* static allocation of HUF's Compression Table */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
156 #define HUF_CTABLE_SIZE_U32(maxSymbolValue) ((maxSymbolValue)+1) /* Use tables of U32, for proper alignment */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
157 #define HUF_CTABLE_SIZE(maxSymbolValue) (HUF_CTABLE_SIZE_U32(maxSymbolValue) * sizeof(U32)) |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
158 #define HUF_CREATE_STATIC_CTABLE(name, maxSymbolValue) \ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
159 U32 name##hb[HUF_CTABLE_SIZE_U32(maxSymbolValue)]; \ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
160 void* name##hv = &(name##hb); \ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
161 HUF_CElt* name = (HUF_CElt*)(name##hv) /* no final ; */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
162 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
163 /* static allocation of HUF's DTable */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
164 typedef U32 HUF_DTable; |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
165 #define HUF_DTABLE_SIZE(maxTableLog) (1 + (1<<(maxTableLog))) |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
166 #define HUF_CREATE_STATIC_DTABLEX1(DTable, maxTableLog) \ |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
167 HUF_DTable DTable[HUF_DTABLE_SIZE((maxTableLog)-1)] = { ((U32)((maxTableLog)-1) * 0x01000001) } |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
168 #define HUF_CREATE_STATIC_DTABLEX2(DTable, maxTableLog) \ |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
169 HUF_DTable DTable[HUF_DTABLE_SIZE(maxTableLog)] = { ((U32)(maxTableLog) * 0x01000001) } |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
170 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
171 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
172 /* **************************************** |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
173 * Advanced decompression functions |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
174 ******************************************/ |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
175 size_t HUF_decompress4X1 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
176 #ifndef HUF_FORCE_DECOMPRESS_X1 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
177 size_t HUF_decompress4X2 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
178 #endif |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
179 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
180 size_t HUF_decompress4X_DCtx (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< decodes RLE and uncompressed */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
181 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 */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
182 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 */ |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
183 size_t HUF_decompress4X1_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */ |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
184 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 */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
185 #ifndef HUF_FORCE_DECOMPRESS_X1 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
186 size_t HUF_decompress4X2_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */ |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
187 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 */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
188 #endif |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
189 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
190 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
191 /* **************************************** |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
192 * HUF detailed API |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
193 * ****************************************/ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
194 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
195 /*! HUF_compress() does the following: |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
196 * 1. count symbol occurrence from source[] into table count[] using FSE_count() (exposed within "fse.h") |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
197 * 2. (optional) refine tableLog using HUF_optimalTableLog() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
198 * 3. build Huffman table from count using HUF_buildCTable() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
199 * 4. save Huffman table to memory buffer using HUF_writeCTable() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
200 * 5. encode the data stream using HUF_compress4X_usingCTable() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
201 * |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
202 * The following API allows targeting specific sub-functions for advanced tasks. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
203 * For example, it's possible to compress several blocks using the same 'CTable', |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
204 * or to save and regenerate 'CTable' using external methods. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
205 */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
206 unsigned HUF_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue); |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
207 typedef struct HUF_CElt_s HUF_CElt; /* incomplete type */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
208 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 */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
209 size_t HUF_writeCTable (void* dst, size_t maxDstSize, const HUF_CElt* CTable, unsigned maxSymbolValue, unsigned huffLog); |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
210 size_t HUF_compress4X_usingCTable(void* dst, size_t dstSize, const void* src, size_t srcSize, const HUF_CElt* CTable); |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
211 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
212 typedef enum { |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
213 HUF_repeat_none, /**< Cannot use the previous table */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
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 */ |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
215 HUF_repeat_valid /**< Can use the previous table and it is assumed to be valid */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
216 } HUF_repeat; |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
217 /** HUF_compress4X_repeat() : |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
218 * Same as HUF_compress4X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
219 * If it uses hufTable it does not modify hufTable or repeat. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
220 * If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
221 * If preferRepeat then the old table will always be used if valid. */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
222 size_t HUF_compress4X_repeat(void* dst, size_t dstSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
223 const void* src, size_t srcSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
224 unsigned maxSymbolValue, unsigned tableLog, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
225 void* workSpace, size_t wkspSize, /**< `workSpace` must be aligned on 4-bytes boundaries, `wkspSize` must be >= HUF_WORKSPACE_SIZE */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
226 HUF_CElt* hufTable, HUF_repeat* repeat, int preferRepeat, int bmi2); |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
227 |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
228 /** HUF_buildCTable_wksp() : |
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
229 * Same as HUF_buildCTable(), but using externally allocated scratch buffer. |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
230 * `workSpace` must be aligned on 4-bytes boundaries, and its size must be >= HUF_CTABLE_WORKSPACE_SIZE. |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
231 */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
232 #define HUF_CTABLE_WORKSPACE_SIZE_U32 (2*HUF_SYMBOLVALUE_MAX +1 +1) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
233 #define HUF_CTABLE_WORKSPACE_SIZE (HUF_CTABLE_WORKSPACE_SIZE_U32 * sizeof(unsigned)) |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
234 size_t HUF_buildCTable_wksp (HUF_CElt* tree, |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
235 const unsigned* count, U32 maxSymbolValue, U32 maxNbBits, |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
236 void* workSpace, size_t wkspSize); |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
237 |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
238 /*! HUF_readStats() : |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
239 * Read compact Huffman tree, saved by HUF_writeCTable(). |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
240 * `huffWeight` is destination buffer. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
241 * @return : size read from `src` , or an error Code . |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
242 * Note : Needed by HUF_readCTable() and HUF_readDTableXn() . */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
243 size_t HUF_readStats(BYTE* huffWeight, size_t hwSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
244 U32* rankStats, U32* nbSymbolsPtr, U32* tableLogPtr, |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
245 const void* src, size_t srcSize); |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
246 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
247 /** HUF_readCTable() : |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
248 * Loading a CTable saved with HUF_writeCTable() */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
249 size_t HUF_readCTable (HUF_CElt* CTable, unsigned* maxSymbolValuePtr, const void* src, size_t srcSize); |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
250 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
251 /** HUF_getNbBits() : |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
252 * Read nbBits from CTable symbolTable, for symbol `symbolValue` presumed <= HUF_SYMBOLVALUE_MAX |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
253 * Note 1 : is not inlined, as HUF_CElt definition is private |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
254 * Note 2 : const void* used, so that it can provide a statically allocated table as argument (which uses type U32) */ |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
255 U32 HUF_getNbBits(const void* symbolTable, U32 symbolValue); |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
256 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
257 /* |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
258 * HUF_decompress() does the following: |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
259 * 1. select the decompression algorithm (X1, X2) based on pre-computed heuristics |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
260 * 2. build Huffman table from save, using HUF_readDTableX?() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
261 * 3. decode 1 or 4 segments in parallel using HUF_decompress?X?_usingDTable() |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
262 */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
263 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
264 /** HUF_selectDecoder() : |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
265 * Tells which decoder is likely to decode faster, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
266 * based on a set of pre-computed metrics. |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
267 * @return : 0==HUF_decompress4X1, 1==HUF_decompress4X2 . |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
268 * Assumption : 0 < dstSize <= 128 KB */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
269 U32 HUF_selectDecoder (size_t dstSize, size_t cSrcSize); |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
270 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
271 /** |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
272 * The minimum workspace size for the `workSpace` used in |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
273 * HUF_readDTableX1_wksp() and HUF_readDTableX2_wksp(). |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
274 * |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
275 * The space used depends on HUF_TABLELOG_MAX, ranging from ~1500 bytes when |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
276 * HUF_TABLE_LOG_MAX=12 to ~1850 bytes when HUF_TABLE_LOG_MAX=15. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
277 * Buffer overflow errors may potentially occur if code modifications result in |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
278 * a required workspace size greater than that specified in the following |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
279 * macro. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
280 */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
281 #define HUF_DECOMPRESS_WORKSPACE_SIZE (2 << 10) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
282 #define HUF_DECOMPRESS_WORKSPACE_SIZE_U32 (HUF_DECOMPRESS_WORKSPACE_SIZE / sizeof(U32)) |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
283 |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
284 #ifndef HUF_FORCE_DECOMPRESS_X2 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
285 size_t HUF_readDTableX1 (HUF_DTable* DTable, const void* src, size_t srcSize); |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
286 size_t HUF_readDTableX1_wksp (HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
287 #endif |
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
288 #ifndef HUF_FORCE_DECOMPRESS_X1 |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
289 size_t HUF_readDTableX2 (HUF_DTable* DTable, const void* src, size_t srcSize); |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
290 size_t HUF_readDTableX2_wksp (HUF_DTable* DTable, const void* src, size_t srcSize, void* workSpace, size_t wkspSize); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
291 #endif |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
292 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
293 size_t HUF_decompress4X_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
294 #ifndef HUF_FORCE_DECOMPRESS_X2 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
295 size_t HUF_decompress4X1_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
296 #endif |
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
297 #ifndef HUF_FORCE_DECOMPRESS_X1 |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
298 size_t HUF_decompress4X2_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
299 #endif |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
300 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
301 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
302 /* ====================== */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
303 /* single stream variants */ |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
304 /* ====================== */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
305 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
306 size_t HUF_compress1X (void* dst, size_t dstSize, const void* src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog); |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
307 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 */ |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
308 size_t HUF_compress1X_usingCTable(void* dst, size_t dstSize, const void* src, size_t srcSize, const HUF_CElt* CTable); |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
309 /** HUF_compress1X_repeat() : |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
310 * Same as HUF_compress1X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
311 * If it uses hufTable it does not modify hufTable or repeat. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
312 * If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
313 * If preferRepeat then the old table will always be used if valid. */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
314 size_t HUF_compress1X_repeat(void* dst, size_t dstSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
315 const void* src, size_t srcSize, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
316 unsigned maxSymbolValue, unsigned tableLog, |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
317 void* workSpace, size_t wkspSize, /**< `workSpace` must be aligned on 4-bytes boundaries, `wkspSize` must be >= HUF_WORKSPACE_SIZE */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
318 HUF_CElt* hufTable, HUF_repeat* repeat, int preferRepeat, int bmi2); |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
319 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
320 size_t HUF_decompress1X1 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /* single-symbol decoder */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
321 #ifndef HUF_FORCE_DECOMPRESS_X1 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
322 size_t HUF_decompress1X2 (void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /* double-symbol decoder */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
323 #endif |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
324 |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
325 size_t HUF_decompress1X_DCtx (HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
326 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); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
327 #ifndef HUF_FORCE_DECOMPRESS_X2 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
328 size_t HUF_decompress1X1_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< single-symbol decoder */ |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
329 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 */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
330 #endif |
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
331 #ifndef HUF_FORCE_DECOMPRESS_X1 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
332 size_t HUF_decompress1X2_DCtx(HUF_DTable* dctx, void* dst, size_t dstSize, const void* cSrc, size_t cSrcSize); /**< double-symbols decoder */ |
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
333 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 */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
334 #endif |
30822
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
335 |
b54a2984cdd4
zstd: vendor python-zstandard 0.6.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30443
diff
changeset
|
336 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 */ |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
337 #ifndef HUF_FORCE_DECOMPRESS_X2 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
338 size_t HUF_decompress1X1_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
339 #endif |
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
340 #ifndef HUF_FORCE_DECOMPRESS_X1 |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
341 size_t HUF_decompress1X2_usingDTable(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
342 #endif |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
343 |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
344 /* BMI2 variants. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
345 * If the CPU has BMI2 support, pass bmi2=1, otherwise pass bmi2=0. |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
346 */ |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
347 size_t HUF_decompress1X_usingDTable_bmi2(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable, int bmi2); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
348 #ifndef HUF_FORCE_DECOMPRESS_X2 |
40122
73fef626dae3
zstandard: vendor python-zstandard 0.10.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37495
diff
changeset
|
349 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); |
42070
675775c33ab6
zstandard: vendor python-zstandard 0.11
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40122
diff
changeset
|
350 #endif |
37495
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
351 size_t HUF_decompress4X_usingDTable_bmi2(void* dst, size_t maxDstSize, const void* cSrc, size_t cSrcSize, const HUF_DTable* DTable, int bmi2); |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
352 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); |
b1fb341d8a61
zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30822
diff
changeset
|
353 |
30443
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
354 #endif /* HUF_STATIC_LINKING_ONLY */ |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
355 |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
356 #if defined (__cplusplus) |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
357 } |
2e484bdea8c4
zstd: vendor zstd 1.1.1
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
358 #endif |