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/* lzo1b.h -- public interface of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
The LZO library 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1B_H_INCLUDED
#define __LZO1B_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1B_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t))
#define LZO1B_MEM_DECOMPRESS (0)
/* compression levels */
#define LZO1B_BEST_SPEED 1
#define LZO1B_BEST_COMPRESSION 9
#define LZO1B_DEFAULT_COMPRESSION (-1) /* fastest by default */
LZO_EXTERN(int)
lzo1b_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
int compression_level );
/* decompression */
LZO_EXTERN(int)
lzo1b_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1b_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1b_1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_2_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_3_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_4_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_5_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_6_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_7_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_8_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_9_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1B_99_MEM_COMPRESS ((lzo_uint32_t) (65536L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1b_99_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#define LZO1B_999_MEM_COMPRESS ((lzo_uint32_t) (3 * 65536L * sizeof(lzo_xint)))
LZO_EXTERN(int)
lzo1b_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */
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