summaryrefslogtreecommitdiff
path: root/include/vcl/checksum.hxx
blob: 8b149546d6623500d75042eb67c4c4b50c6a687e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */


#ifndef INCLUDED_VCL_INC_CHECKSUM_HXX
#define INCLUDED_VCL_INC_CHECKSUM_HXX

#include <sal/config.h>
#include <sal/types.h>
#include <tools/solar.h>
#include <vcl/dllapi.h>

#include <boost/preprocessor/arithmetic/inc.hpp>
#include <boost/preprocessor/arithmetic/mul.hpp>
#include <boost/preprocessor/repetition/repeat_from_to.hpp>


/*========================================================================
 *
 * vcl_crc64Table (CRC polynomial 0x95AC9329AC4BC9B5ULL).
 *
 *======================================================================*/
static const sal_uInt64 vcl_crc64Table[256] = {
  0x0000000000000000ULL, 0x7ad870c830358979ULL, 0xf5b0e190606b12f2ULL,
  0x8f689158505e9b8bULL, 0xc038e5739841b68fULL, 0xbae095bba8743ff6ULL,
  0x358804e3f82aa47dULL, 0x4f50742bc81f2d04ULL, 0xab28ecb46814fe75ULL,
  0xd1f09c7c5821770cULL, 0x5e980d24087fec87ULL, 0x24407dec384a65feULL,
  0x6b1009c7f05548faULL, 0x11c8790fc060c183ULL, 0x9ea0e857903e5a08ULL,
  0xe478989fa00bd371ULL, 0x7d08ff3b88be6f81ULL, 0x07d08ff3b88be6f8ULL,
  0x88b81eabe8d57d73ULL, 0xf2606e63d8e0f40aULL, 0xbd301a4810ffd90eULL,
  0xc7e86a8020ca5077ULL, 0x4880fbd87094cbfcULL, 0x32588b1040a14285ULL,
  0xd620138fe0aa91f4ULL, 0xacf86347d09f188dULL, 0x2390f21f80c18306ULL,
  0x594882d7b0f40a7fULL, 0x1618f6fc78eb277bULL, 0x6cc0863448deae02ULL,
  0xe3a8176c18803589ULL, 0x997067a428b5bcf0ULL, 0xfa11fe77117cdf02ULL,
  0x80c98ebf2149567bULL, 0x0fa11fe77117cdf0ULL, 0x75796f2f41224489ULL,
  0x3a291b04893d698dULL, 0x40f16bccb908e0f4ULL, 0xcf99fa94e9567b7fULL,
  0xb5418a5cd963f206ULL, 0x513912c379682177ULL, 0x2be1620b495da80eULL,
  0xa489f35319033385ULL, 0xde51839b2936bafcULL, 0x9101f7b0e12997f8ULL,
  0xebd98778d11c1e81ULL, 0x64b116208142850aULL, 0x1e6966e8b1770c73ULL,
  0x8719014c99c2b083ULL, 0xfdc17184a9f739faULL, 0x72a9e0dcf9a9a271ULL,
  0x08719014c99c2b08ULL, 0x4721e43f0183060cULL, 0x3df994f731b68f75ULL,
  0xb29105af61e814feULL, 0xc849756751dd9d87ULL, 0x2c31edf8f1d64ef6ULL,
  0x56e99d30c1e3c78fULL, 0xd9810c6891bd5c04ULL, 0xa3597ca0a188d57dULL,
  0xec09088b6997f879ULL, 0x96d1784359a27100ULL, 0x19b9e91b09fcea8bULL,
  0x636199d339c963f2ULL, 0xdf7adabd7a6e2d6fULL, 0xa5a2aa754a5ba416ULL,
  0x2aca3b2d1a053f9dULL, 0x50124be52a30b6e4ULL, 0x1f423fcee22f9be0ULL,
  0x659a4f06d21a1299ULL, 0xeaf2de5e82448912ULL, 0x902aae96b271006bULL,
  0x74523609127ad31aULL, 0x0e8a46c1224f5a63ULL, 0x81e2d7997211c1e8ULL,
  0xfb3aa75142244891ULL, 0xb46ad37a8a3b6595ULL, 0xceb2a3b2ba0eececULL,
  0x41da32eaea507767ULL, 0x3b024222da65fe1eULL, 0xa2722586f2d042eeULL,
  0xd8aa554ec2e5cb97ULL, 0x57c2c41692bb501cULL, 0x2d1ab4dea28ed965ULL,
  0x624ac0f56a91f461ULL, 0x1892b03d5aa47d18ULL, 0x97fa21650afae693ULL,
  0xed2251ad3acf6feaULL, 0x095ac9329ac4bc9bULL, 0x7382b9faaaf135e2ULL,
  0xfcea28a2faafae69ULL, 0x8632586aca9a2710ULL, 0xc9622c4102850a14ULL,
  0xb3ba5c8932b0836dULL, 0x3cd2cdd162ee18e6ULL, 0x460abd1952db919fULL,
  0x256b24ca6b12f26dULL, 0x5fb354025b277b14ULL, 0xd0dbc55a0b79e09fULL,
  0xaa03b5923b4c69e6ULL, 0xe553c1b9f35344e2ULL, 0x9f8bb171c366cd9bULL,
  0x10e3202993385610ULL, 0x6a3b50e1a30ddf69ULL, 0x8e43c87e03060c18ULL,
  0xf49bb8b633338561ULL, 0x7bf329ee636d1eeaULL, 0x012b592653589793ULL,
  0x4e7b2d0d9b47ba97ULL, 0x34a35dc5ab7233eeULL, 0xbbcbcc9dfb2ca865ULL,
  0xc113bc55cb19211cULL, 0x5863dbf1e3ac9decULL, 0x22bbab39d3991495ULL,
  0xadd33a6183c78f1eULL, 0xd70b4aa9b3f20667ULL, 0x985b3e827bed2b63ULL,
  0xe2834e4a4bd8a21aULL, 0x6debdf121b863991ULL, 0x1733afda2bb3b0e8ULL,
  0xf34b37458bb86399ULL, 0x8993478dbb8deae0ULL, 0x06fbd6d5ebd3716bULL,
  0x7c23a61ddbe6f812ULL, 0x3373d23613f9d516ULL, 0x49aba2fe23cc5c6fULL,
  0xc6c333a67392c7e4ULL, 0xbc1b436e43a74e9dULL, 0x95ac9329ac4bc9b5ULL,
  0xef74e3e19c7e40ccULL, 0x601c72b9cc20db47ULL, 0x1ac40271fc15523eULL,
  0x5594765a340a7f3aULL, 0x2f4c0692043ff643ULL, 0xa02497ca54616dc8ULL,
  0xdafce7026454e4b1ULL, 0x3e847f9dc45f37c0ULL, 0x445c0f55f46abeb9ULL,
  0xcb349e0da4342532ULL, 0xb1eceec59401ac4bULL, 0xfebc9aee5c1e814fULL,
  0x8464ea266c2b0836ULL, 0x0b0c7b7e3c7593bdULL, 0x71d40bb60c401ac4ULL,
  0xe8a46c1224f5a634ULL, 0x927c1cda14c02f4dULL, 0x1d148d82449eb4c6ULL,
  0x67ccfd4a74ab3dbfULL, 0x289c8961bcb410bbULL, 0x5244f9a98c8199c2ULL,
  0xdd2c68f1dcdf0249ULL, 0xa7f41839ecea8b30ULL, 0x438c80a64ce15841ULL,
  0x3954f06e7cd4d138ULL, 0xb63c61362c8a4ab3ULL, 0xcce411fe1cbfc3caULL,
  0x83b465d5d4a0eeceULL, 0xf96c151de49567b7ULL, 0x76048445b4cbfc3cULL,
  0x0cdcf48d84fe7545ULL, 0x6fbd6d5ebd3716b7ULL, 0x15651d968d029fceULL,
  0x9a0d8ccedd5c0445ULL, 0xe0d5fc06ed698d3cULL, 0xaf85882d2576a038ULL,
  0xd55df8e515432941ULL, 0x5a3569bd451db2caULL, 0x20ed197575283bb3ULL,
  0xc49581ead523e8c2ULL, 0xbe4df122e51661bbULL, 0x3125607ab548fa30ULL,
  0x4bfd10b2857d7349ULL, 0x04ad64994d625e4dULL, 0x7e7514517d57d734ULL,
  0xf11d85092d094cbfULL, 0x8bc5f5c11d3cc5c6ULL, 0x12b5926535897936ULL,
  0x686de2ad05bcf04fULL, 0xe70573f555e26bc4ULL, 0x9ddd033d65d7e2bdULL,
  0xd28d7716adc8cfb9ULL, 0xa85507de9dfd46c0ULL, 0x273d9686cda3dd4bULL,
  0x5de5e64efd965432ULL, 0xb99d7ed15d9d8743ULL, 0xc3450e196da80e3aULL,
  0x4c2d9f413df695b1ULL, 0x36f5ef890dc31cc8ULL, 0x79a59ba2c5dc31ccULL,
  0x037deb6af5e9b8b5ULL, 0x8c157a32a5b7233eULL, 0xf6cd0afa9582aa47ULL,
  0x4ad64994d625e4daULL, 0x300e395ce6106da3ULL, 0xbf66a804b64ef628ULL,
  0xc5bed8cc867b7f51ULL, 0x8aeeace74e645255ULL, 0xf036dc2f7e51db2cULL,
  0x7f5e4d772e0f40a7ULL, 0x05863dbf1e3ac9deULL, 0xe1fea520be311aafULL,
  0x9b26d5e88e0493d6ULL, 0x144e44b0de5a085dULL, 0x6e963478ee6f8124ULL,
  0x21c640532670ac20ULL, 0x5b1e309b16452559ULL, 0xd476a1c3461bbed2ULL,
  0xaeaed10b762e37abULL, 0x37deb6af5e9b8b5bULL, 0x4d06c6676eae0222ULL,
  0xc26e573f3ef099a9ULL, 0xb8b627f70ec510d0ULL, 0xf7e653dcc6da3dd4ULL,
  0x8d3e2314f6efb4adULL, 0x0256b24ca6b12f26ULL, 0x788ec2849684a65fULL,
  0x9cf65a1b368f752eULL, 0xe62e2ad306bafc57ULL, 0x6946bb8b56e467dcULL,
  0x139ecb4366d1eea5ULL, 0x5ccebf68aecec3a1ULL, 0x2616cfa09efb4ad8ULL,
  0xa97e5ef8cea5d153ULL, 0xd3a62e30fe90582aULL, 0xb0c7b7e3c7593bd8ULL,
  0xca1fc72bf76cb2a1ULL, 0x45775673a732292aULL, 0x3faf26bb9707a053ULL,
  0x70ff52905f188d57ULL, 0x0a2722586f2d042eULL, 0x854fb3003f739fa5ULL,
  0xff97c3c80f4616dcULL, 0x1bef5b57af4dc5adULL, 0x61372b9f9f784cd4ULL,
  0xee5fbac7cf26d75fULL, 0x9487ca0fff135e26ULL, 0xdbd7be24370c7322ULL,
  0xa10fceec0739fa5bULL, 0x2e675fb4576761d0ULL, 0x54bf2f7c6752e8a9ULL,
  0xcdcf48d84fe75459ULL, 0xb71738107fd2dd20ULL, 0x387fa9482f8c46abULL,
  0x42a7d9801fb9cfd2ULL, 0x0df7adabd7a6e2d6ULL, 0x772fdd63e7936bafULL,
  0xf8474c3bb7cdf024ULL, 0x829f3cf387f8795dULL, 0x66e7a46c27f3aa2cULL,
  0x1c3fd4a417c62355ULL, 0x935745fc4798b8deULL, 0xe98f353477ad31a7ULL,
  0xa6df411fbfb21ca3ULL, 0xdc0731d78f8795daULL, 0x536fa08fdfd90e51ULL,
  0x29b7d047efec8728ULL
};

#define BITMAP_CHECKSUM_SIZE 8
#define BITMAP_CHECKSUM_BITS BOOST_PP_MUL(BITMAP_CHECKSUM_SIZE, 8)

typedef sal_uInt64   BitmapChecksum;
typedef sal_uInt8   BitmapChecksumOctetArray[BITMAP_CHECKSUM_SIZE];

#define BITMAP_CHECKSUM_SET_OCTET(z, i, unused) \
p[i] = (sal_uInt8)(n >> BOOST_PP_MUL(8, i));


inline void BCToBCOA( BitmapChecksum n , BitmapChecksumOctetArray p )
{
    BOOST_PP_REPEAT(BITMAP_CHECKSUM_SIZE , BITMAP_CHECKSUM_SET_OCTET, unused)
}

#ifdef __cplusplus
extern "C" {
#endif

/*========================================================================
 *
 * vcl_crc64 interface.
 *
 *======================================================================*/
/** Evaluate CRC64 over given data.

    This function evaluates the CRC polynomial 0xEDB88320.

    @param  Crc    [in] CRC64 over previous data or zero.
    @param  Data   [in] data buffer.
    @param  DatLen [in] data buffer length.
    @return new CRC64 value.
 */
VCL_DLLPUBLIC sal_uInt64 SAL_CALL vcl_crc64 (
    sal_uInt64  Crc,
    const void *Data, sal_uInt32 DatLen
)   SAL_THROW_EXTERN_C();


#ifdef __cplusplus
}
#endif

inline BitmapChecksum vcl_get_checksum (
    BitmapChecksum  Checksum,
    const void *Data,
    sal_uInt32 DatLen
)
{
    return (BitmapChecksum)(vcl_crc64( Checksum, Data, DatLen ));
}


#endif // INCLUDED_VCL_INC_CHECKSUM_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */