include/lzo/lzo1.h

0001 /* lzo1.h -- public interface of the LZO1 compression algorithm
0002
0003    This file is part of the LZO real-time data compression library.
0004
0005    Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer
0006    All Rights Reserved.
0007
0008    The LZO library is free software; you can redistribute it and/or
0009    modify it under the terms of the GNU General Public License as
0010    published by the Free Software Foundation; either version 2 of
0011    the License, or (at your option) any later version.
0012
0013    The LZO library is distributed in the hope that it will be useful,
0014    but WITHOUT ANY WARRANTY; without even the implied warranty of
0015    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0016    GNU General Public License for more details.
0017
0018    You should have received a copy of the GNU General Public License
0019    along with the LZO library; see the file COPYING.
0020    If not, write to the Free Software Foundation, Inc.,
0021    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
0022
0023    Markus F.X.J. Oberhumer
0024    <markus@oberhumer.com>
0025    http://www.oberhumer.com/opensource/lzo/
0026  */
0027
0028
0029 #ifndef __LZO1_H_INCLUDED
0030 #define __LZO1_H_INCLUDED 1
0031
0032 #ifndef __LZOCONF_H_INCLUDED
0033 #include <lzo/lzoconf.h>
0034 #endif
0035
0036 #ifdef __cplusplus
0037 extern "C" {
0038 #endif
0039
0040
0041 /***********************************************************************
0042 //
0043 ************************************************************************/
0044
0045 /* Memory required for the wrkmem parameter.
0046  * When the required size is 0, you can also pass a NULL pointer.
0047  */
0048
0049 #define LZO1_MEM_COMPRESS       ((lzo_uint32_t) (8192L * lzo_sizeof_dict_t))
0050 #define LZO1_MEM_DECOMPRESS     (0)
0051
0052
0053 LZO_EXTERN(int)
0054 lzo1_compress           ( const lzo_bytep src, lzo_uint  src_len,
0055                                 lzo_bytep dst, lzo_uintp dst_len,
0056                                 lzo_voidp wrkmem );
0057
0058 LZO_EXTERN(int)
0059 lzo1_decompress         ( const lzo_bytep src, lzo_uint  src_len,
0060                                 lzo_bytep dst, lzo_uintp dst_len,
0061                                 lzo_voidp wrkmem /* NOT USED */ );
0062
0063
0064 /***********************************************************************
0065 // better compression ratio at the cost of more memory and time
0066 ************************************************************************/
0067
0068 #define LZO1_99_MEM_COMPRESS    ((lzo_uint32_t) (65536L * lzo_sizeof_dict_t))
0069
0070 LZO_EXTERN(int)
0071 lzo1_99_compress        ( const lzo_bytep src, lzo_uint  src_len,
0072                                 lzo_bytep dst, lzo_uintp dst_len,
0073                                 lzo_voidp wrkmem );
0074
0075
0076
0077 #ifdef __cplusplus
0078 } /* extern "C" */
0079 #endif
0080
0081 #endif /* already included */
0082
0083
0084 /* vim:set ts=4 sw=4 et: */