pcompress/filters/delta2/delta2.h
Moinak Ghosh d5ceda559e Update Licensing notes and build notes.
More whitespace fixes.
2014-07-26 15:28:40 +05:30

51 lines
1.5 KiB
C

/*
* This file is a part of Pcompress, a chunked parallel multi-
* algorithm lossless compression and decompression program.
*
* Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
* Use is subject to license terms.
*
* This program 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.
*
* This program 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 this program.
* If not, see <http://www.gnu.org/licenses/>.
*
* moinakg@belenix.org, http://moinakg.wordpress.com/
*/
#ifndef _DELTA2_H
#define _DELTA2_H
#include <arpa/nameser_compat.h>
#include <sys/types.h>
#include <stdint.h>
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
#define NSTRIDES_STANDARD 3
#define NSTRIDES_EXTRA 7
#define STRIDE_MAX 8
#define STRIDE_MIN 2
int delta2_encode(uchar_t *src, uint64_t srclen, uchar_t *dst, uint64_t *dstlen, int rle_thresh, int nstrides);
int delta2_decode(uchar_t *src, uint64_t srclen, uchar_t *dst, uint64_t *dstlen);
#define ULL_MAX (18446744073709551615ULL)
#ifdef __cplusplus
}
#endif
#endif