1/* lzo1b.h -- public interface of the LZO1B compression algorithm 2 3 This file is part of the LZO real-time data compression library. 4 5 Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer 6 Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer 7 Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer 8 Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer 9 Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer 10 Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer 11 Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer 12 Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer 13 Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer 14 Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer 15 Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer 16 Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer 17 Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer 18 Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer 19 Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer 20 Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer 21 All Rights Reserved. 22 23 The LZO library is free software; you can redistribute it and/or 24 modify it under the terms of the GNU General Public License as 25 published by the Free Software Foundation; either version 2 of 26 the License, or (at your option) any later version. 27 28 The LZO library is distributed in the hope that it will be useful, 29 but WITHOUT ANY WARRANTY; without even the implied warranty of 30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 31 GNU General Public License for more details. 32 33 You should have received a copy of the GNU General Public License 34 along with the LZO library; see the file COPYING. 35 If not, write to the Free Software Foundation, Inc., 36 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 37 38 Markus F.X.J. Oberhumer 39 <markus@oberhumer.com> 40 http://www.oberhumer.com/opensource/lzo/ 41 */ 42 43 44#ifndef __LZO1B_H_INCLUDED 45#define __LZO1B_H_INCLUDED 1 46 47#ifndef __LZOCONF_H_INCLUDED 48#include "lzoconf.h" 49#endif 50 51#ifdef __cplusplus 52extern "C" { 53#endif 54 55 56/*********************************************************************** 57// 58************************************************************************/ 59 60/* Memory required for the wrkmem parameter. 61 * When the required size is 0, you can also pass a NULL pointer. 62 */ 63 64#define LZO1B_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) 65#define LZO1B_MEM_DECOMPRESS (0) 66 67 68/* compression levels */ 69#define LZO1B_BEST_SPEED 1 70#define LZO1B_BEST_COMPRESSION 9 71#define LZO1B_DEFAULT_COMPRESSION (-1) /* fastest by default */ 72 73 74LZO_EXTERN(int) 75lzo1b_compress ( const lzo_bytep src, lzo_uint src_len, 76 lzo_bytep dst, lzo_uintp dst_len, 77 lzo_voidp wrkmem, 78 int compression_level ); 79 80/* decompression */ 81LZO_EXTERN(int) 82lzo1b_decompress ( const lzo_bytep src, lzo_uint src_len, 83 lzo_bytep dst, lzo_uintp dst_len, 84 lzo_voidp wrkmem /* NOT USED */ ); 85 86/* safe decompression with overrun testing */ 87LZO_EXTERN(int) 88lzo1b_decompress_safe ( const lzo_bytep src, lzo_uint src_len, 89 lzo_bytep dst, lzo_uintp dst_len, 90 lzo_voidp wrkmem /* NOT USED */ ); 91 92 93/*********************************************************************** 94// 95************************************************************************/ 96 97LZO_EXTERN(int) 98lzo1b_1_compress ( const lzo_bytep src, lzo_uint src_len, 99 lzo_bytep dst, lzo_uintp dst_len, 100 lzo_voidp wrkmem ); 101LZO_EXTERN(int) 102lzo1b_2_compress ( const lzo_bytep src, lzo_uint src_len, 103 lzo_bytep dst, lzo_uintp dst_len, 104 lzo_voidp wrkmem ); 105LZO_EXTERN(int) 106lzo1b_3_compress ( const lzo_bytep src, lzo_uint src_len, 107 lzo_bytep dst, lzo_uintp dst_len, 108 lzo_voidp wrkmem ); 109LZO_EXTERN(int) 110lzo1b_4_compress ( const lzo_bytep src, lzo_uint src_len, 111 lzo_bytep dst, lzo_uintp dst_len, 112 lzo_voidp wrkmem ); 113LZO_EXTERN(int) 114lzo1b_5_compress ( const lzo_bytep src, lzo_uint src_len, 115 lzo_bytep dst, lzo_uintp dst_len, 116 lzo_voidp wrkmem ); 117LZO_EXTERN(int) 118lzo1b_6_compress ( const lzo_bytep src, lzo_uint src_len, 119 lzo_bytep dst, lzo_uintp dst_len, 120 lzo_voidp wrkmem ); 121LZO_EXTERN(int) 122lzo1b_7_compress ( const lzo_bytep src, lzo_uint src_len, 123 lzo_bytep dst, lzo_uintp dst_len, 124 lzo_voidp wrkmem ); 125LZO_EXTERN(int) 126lzo1b_8_compress ( const lzo_bytep src, lzo_uint src_len, 127 lzo_bytep dst, lzo_uintp dst_len, 128 lzo_voidp wrkmem ); 129LZO_EXTERN(int) 130lzo1b_9_compress ( const lzo_bytep src, lzo_uint src_len, 131 lzo_bytep dst, lzo_uintp dst_len, 132 lzo_voidp wrkmem ); 133 134 135/*********************************************************************** 136// better compression ratio at the cost of more memory and time 137************************************************************************/ 138 139#define LZO1B_99_MEM_COMPRESS ((lzo_uint32) (65536L * lzo_sizeof_dict_t)) 140 141LZO_EXTERN(int) 142lzo1b_99_compress ( const lzo_bytep src, lzo_uint src_len, 143 lzo_bytep dst, lzo_uintp dst_len, 144 lzo_voidp wrkmem ); 145 146 147#define LZO1B_999_MEM_COMPRESS ((lzo_uint32) (3 * 65536L * sizeof(lzo_xint))) 148 149LZO_EXTERN(int) 150lzo1b_999_compress ( const lzo_bytep src, lzo_uint src_len, 151 lzo_bytep dst, lzo_uintp dst_len, 152 lzo_voidp wrkmem ); 153 154 155 156#ifdef __cplusplus 157} /* extern "C" */ 158#endif 159 160#endif /* already included */ 161 162 163/* vim:set ts=4 et: */ 164