1 /* lzo1y.h -- public interface of the LZO1Y compression algorithm
3 This file is part of the LZO real-time data compression library.
5 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer
6 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer
7 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer
8 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer
9 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer
10 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer
11 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
12 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
13 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
14 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
15 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
16 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
17 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
20 The LZO library is free software; you can redistribute it and/or
21 modify it under the terms of the GNU General Public License as
22 published by the Free Software Foundation; either version 2 of
23 the License, or (at your option) any later version.
25 The LZO library is distributed in the hope that it will be useful,
26 but WITHOUT ANY WARRANTY; without even the implied warranty of
27 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 GNU General Public License for more details.
30 You should have received a copy of the GNU General Public License
31 along with the LZO library; see the file COPYING.
32 If not, write to the Free Software Foundation, Inc.,
33 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
35 Markus F.X.J. Oberhumer
36 <markus@oberhumer.com>
37 http://www.oberhumer.com/opensource/lzo/
41 #ifndef __LZO1Y_H_INCLUDED
42 #define __LZO1Y_H_INCLUDED
44 #ifndef __LZOCONF_H_INCLUDED
53 /***********************************************************************
55 ************************************************************************/
57 /* Memory required for the wrkmem parameter.
58 * When the required size is 0, you can also pass a NULL pointer.
61 #define LZO1Y_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t))
62 #define LZO1Y_MEM_DECOMPRESS (0)
63 #define LZO1Y_MEM_OPTIMIZE (0)
68 lzo1y_decompress ( const lzo_bytep src, lzo_uint src_len,
69 lzo_bytep dst, lzo_uintp dst_len,
70 lzo_voidp wrkmem /* NOT USED */ );
72 /* safe decompression with overrun testing */
74 lzo1y_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
75 lzo_bytep dst, lzo_uintp dst_len,
76 lzo_voidp wrkmem /* NOT USED */ );
79 /***********************************************************************
81 ************************************************************************/
84 lzo1y_1_compress ( const lzo_bytep src, lzo_uint src_len,
85 lzo_bytep dst, lzo_uintp dst_len,
89 /***********************************************************************
90 // better compression ratio at the cost of more memory and time
91 ************************************************************************/
93 #define LZO1Y_999_MEM_COMPRESS ((lzo_uint32) (14 * 16384L * sizeof(short)))
96 lzo1y_999_compress ( const lzo_bytep src, lzo_uint src_len,
97 lzo_bytep dst, lzo_uintp dst_len,
102 /***********************************************************************
104 ************************************************************************/
107 lzo1y_999_compress_dict ( const lzo_bytep in , lzo_uint in_len,
108 lzo_bytep out, lzo_uintp out_len,
110 const lzo_bytep dict, lzo_uint dict_len );
113 lzo1y_999_compress_level ( const lzo_bytep in , lzo_uint in_len,
114 lzo_bytep out, lzo_uintp out_len,
116 const lzo_bytep dict, lzo_uint dict_len,
118 int compression_level );
121 lzo1y_decompress_dict_safe ( const lzo_bytep in, lzo_uint in_len,
122 lzo_bytep out, lzo_uintp out_len,
123 lzo_voidp wrkmem /* NOT USED */,
124 const lzo_bytep dict, lzo_uint dict_len );
127 /***********************************************************************
128 // optimize a compressed data block
129 ************************************************************************/
132 lzo1y_optimize ( lzo_bytep in , lzo_uint in_len,
133 lzo_bytep out, lzo_uintp out_len,
134 lzo_voidp wrkmem /* NOT USED */ );
142 #endif /* already included */
145 /* vim:set ts=4 et: */