LCOV - code coverage report
Current view: top level - sal/rtl - crc.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 9 0.0 %
Date: 2014-04-14 Functions: 0 1 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <sal/types.h>
      21             : #include <rtl/crc.h>
      22             : 
      23             : /*========================================================================
      24             :  *
      25             :  * rtl_crc32Table (CRC polynomial 0xEDB88320).
      26             :  *
      27             :  *======================================================================*/
      28             : static const sal_uInt32 rtl_crc32Table[256] =
      29             : {
      30             :     /* 0 */
      31             :     0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
      32             :     0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
      33             :     0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
      34             :     0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
      35             : 
      36             :     /* 1 */
      37             :     0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
      38             :     0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
      39             :     0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
      40             :     0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
      41             : 
      42             :     /* 2 */
      43             :     0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
      44             :     0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
      45             :     0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
      46             :     0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
      47             : 
      48             :     /* 3 */
      49             :     0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
      50             :     0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
      51             :     0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
      52             :     0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
      53             : 
      54             :     /* 4 */
      55             :     0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
      56             :     0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
      57             :     0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
      58             :     0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
      59             : 
      60             :     /* 5 */
      61             :     0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
      62             :     0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
      63             :     0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
      64             :     0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
      65             : 
      66             :     /* 6 */
      67             :     0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
      68             :     0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
      69             :     0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
      70             :     0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
      71             : 
      72             :     /* 7 */
      73             :     0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
      74             :     0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
      75             :     0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
      76             :     0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
      77             : 
      78             :     /* 8 */
      79             :     0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
      80             :     0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
      81             :     0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
      82             :     0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
      83             : 
      84             :     /* 9 */
      85             :     0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
      86             :     0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
      87             :     0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
      88             :     0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
      89             : 
      90             :     /* A */
      91             :     0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
      92             :     0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
      93             :     0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
      94             :     0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
      95             : 
      96             :     /* B */
      97             :     0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
      98             :     0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
      99             :     0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
     100             :     0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
     101             : 
     102             :     /* C */
     103             :     0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
     104             :     0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
     105             :     0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
     106             :     0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
     107             : 
     108             :     /* D */
     109             :     0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
     110             :     0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
     111             :     0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
     112             :     0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
     113             : 
     114             :     /* E */
     115             :     0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
     116             :     0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
     117             :     0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
     118             :     0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
     119             : 
     120             :     /* F */
     121             :     0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
     122             :     0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
     123             :     0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
     124             :     0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
     125             : };
     126             : 
     127             : /*========================================================================
     128             :  *
     129             :  * rtl_crc32 implementation.
     130             :  *
     131             :  *======================================================================*/
     132             : #define UPDCRC32(crc, octet) \
     133             :     (rtl_crc32Table[((crc) ^ (octet)) & 0xff] ^ ((crc) >> 8))
     134             : 
     135             : /*
     136             :  * rtl_crc32.
     137             :  */
     138           0 : sal_uInt32 SAL_CALL rtl_crc32 (
     139             :     sal_uInt32  Crc,
     140             :     const void *Data, sal_uInt32 DatLen) SAL_THROW_EXTERN_C()
     141             : {
     142           0 :     if (Data)
     143             :     {
     144           0 :         const sal_uInt8 *p = (const sal_uInt8 *)Data;
     145           0 :         const sal_uInt8 *q = p + DatLen;
     146             : 
     147           0 :         Crc = ~Crc;
     148           0 :         while (p < q)
     149           0 :             Crc = UPDCRC32(Crc, *(p++));
     150           0 :         Crc = ~Crc;
     151             :     }
     152           0 :     return Crc;
     153             : }
     154             : 
     155             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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