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/*
* $Id: checksum.h,v 1.15 2010/02/05 23:50:22 simakov Exp $
*
* EPSILON - wavelet image compression library.
* Copyright (C) 2006-2010 Alexander Simakov, <xander@entropyware.info>
*
* This file is part of EPSILON
*
* EPSILON is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* EPSILON is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with EPSILON. If not, see <http://www.gnu.org/licenses/>.
*
* http://epsilon-project.sourceforge.net
*/
/** \file
*
* \brief Checksum calculation
*
* This file contains routines for CRC-32 and ADLER-32 checksum
* calculation. At the moment program uses only CRC-32 algorithm.
*
* \section References
*
* <a href="http://www.ross.net/crc/">A Painless Guide to CRC Error Detection Algorithms</a><br>
* <a href="http://en.wikipedia.org/wiki/CRC32">Wikipedia: CRC-32</a><br>
* <a href="http://en.wikipedia.org/wiki/Adler-32">Wikipedia: ADLER-32</a> */
#ifndef __CHECKSUM_H__
#define __CHECKSUM_H__
#ifdef __cplusplus
extern "C" {
#endif
/** \addtogroup checksum Checksum calculation */
/*@{*/
#include <common.h>
#include <epsilon.h>
/** Compute ADLER-32 checksum
*
* This function computes ADLER-32 checksum.
*
* \param data Data to sum
* \param length Data length
*
* \return Checksum */
crc32_t epsilon_adler32(unsigned char *data, int length);
/** Compute CRC-32 checksum
*
* This function computes CRC-32 checksum.
*
* \param data Data to sum
* \param length Data length
*
* \return Checksum */
crc32_t epsilon_crc32(unsigned char *data, int length);
/*@}*/
#ifdef __cplusplus
}
#endif
#endif /* __CHECKSUM_H__ */
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