1/* lzo1c.h -- public interface of the LZO1C compression algorithm 2 3 This file is part of the LZO real-time data compression library. 4 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 18 All Rights Reserved. 19 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. 24 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. 29 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. 34 35 Markus F.X.J. Oberhumer 36 <markus@oberhumer.com> 37 http://www.oberhumer.com/opensource/lzo/ 38 */ 39 40 41#ifndef __LZO1C_H_INCLUDED 42#define __LZO1C_H_INCLUDED 43 44#ifndef __LZOCONF_H_INCLUDED 45#include "lzoconf.h" 46#endif 47 48#ifdef __cplusplus 49extern "C" { 50#endif 51 52 53/*********************************************************************** 54// 55************************************************************************/ 56 57/* Memory required for the wrkmem parameter. 58 * When the required size is 0, you can also pass a NULL pointer. 59 */ 60 61#define LZO1C_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) 62#define LZO1C_MEM_DECOMPRESS (0) 63 64 65/* compression levels */ 66#define LZO1C_BEST_SPEED 1 67#define LZO1C_BEST_COMPRESSION 9 68#define LZO1C_DEFAULT_COMPRESSION (-1) /* fastest by default */ 69 70 71LZO_EXTERN(int) 72lzo1c_compress ( const lzo_bytep src, lzo_uint src_len, 73 lzo_bytep dst, lzo_uintp dst_len, 74 lzo_voidp wrkmem, 75 int compression_level ); 76 77/* decompression */ 78LZO_EXTERN(int) 79lzo1c_decompress ( const lzo_bytep src, lzo_uint src_len, 80 lzo_bytep dst, lzo_uintp dst_len, 81 lzo_voidp wrkmem /* NOT USED */ ); 82 83/* safe decompression with overrun testing */ 84LZO_EXTERN(int) 85lzo1c_decompress_safe ( const lzo_bytep src, lzo_uint src_len, 86 lzo_bytep dst, lzo_uintp dst_len, 87 lzo_voidp wrkmem /* NOT USED */ ); 88 89 90/*********************************************************************** 91// 92************************************************************************/ 93 94LZO_EXTERN(int) 95lzo1c_1_compress ( const lzo_bytep src, lzo_uint src_len, 96 lzo_bytep dst, lzo_uintp dst_len, 97 lzo_voidp wrkmem ); 98LZO_EXTERN(int) 99lzo1c_2_compress ( const lzo_bytep src, lzo_uint src_len, 100 lzo_bytep dst, lzo_uintp dst_len, 101 lzo_voidp wrkmem ); 102LZO_EXTERN(int) 103lzo1c_3_compress ( const lzo_bytep src, lzo_uint src_len, 104 lzo_bytep dst, lzo_uintp dst_len, 105 lzo_voidp wrkmem ); 106LZO_EXTERN(int) 107lzo1c_4_compress ( const lzo_bytep src, lzo_uint src_len, 108 lzo_bytep dst, lzo_uintp dst_len, 109 lzo_voidp wrkmem ); 110LZO_EXTERN(int) 111lzo1c_5_compress ( const lzo_bytep src, lzo_uint src_len, 112 lzo_bytep dst, lzo_uintp dst_len, 113 lzo_voidp wrkmem ); 114LZO_EXTERN(int) 115lzo1c_6_compress ( const lzo_bytep src, lzo_uint src_len, 116 lzo_bytep dst, lzo_uintp dst_len, 117 lzo_voidp wrkmem ); 118LZO_EXTERN(int) 119lzo1c_7_compress ( const lzo_bytep src, lzo_uint src_len, 120 lzo_bytep dst, lzo_uintp dst_len, 121 lzo_voidp wrkmem ); 122LZO_EXTERN(int) 123lzo1c_8_compress ( const lzo_bytep src, lzo_uint src_len, 124 lzo_bytep dst, lzo_uintp dst_len, 125 lzo_voidp wrkmem ); 126LZO_EXTERN(int) 127lzo1c_9_compress ( const lzo_bytep src, lzo_uint src_len, 128 lzo_bytep dst, lzo_uintp dst_len, 129 lzo_voidp wrkmem ); 130 131 132/*********************************************************************** 133// better compression ratio at the cost of more memory and time 134************************************************************************/ 135 136#define LZO1C_99_MEM_COMPRESS ((lzo_uint32) (65536L * lzo_sizeof_dict_t)) 137 138LZO_EXTERN(int) 139lzo1c_99_compress ( const lzo_bytep src, lzo_uint src_len, 140 lzo_bytep dst, lzo_uintp dst_len, 141 lzo_voidp wrkmem ); 142 143 144#define LZO1C_999_MEM_COMPRESS ((lzo_uint32) (5 * 16384L * sizeof(short))) 145 146LZO_EXTERN(int) 147lzo1c_999_compress ( const lzo_bytep src, lzo_uint src_len, 148 lzo_bytep dst, lzo_uintp dst_len, 149 lzo_voidp wrkmem ); 150 151 152 153#ifdef __cplusplus 154} /* extern "C" */ 155#endif 156 157#endif /* already included */ 158 159 160/* vim:set ts=4 et: */ 161