1/* lzo1y.h -- public interface of the LZO1Y 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 __LZO1Y_H_INCLUDED 42#define __LZO1Y_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 LZO1Y_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) 62#define LZO1Y_MEM_DECOMPRESS (0) 63#define LZO1Y_MEM_OPTIMIZE (0) 64 65 66/* decompression */ 67LZO_EXTERN(int) 68lzo1y_decompress ( const lzo_bytep src, lzo_uint src_len, 69 lzo_bytep dst, lzo_uintp dst_len, 70 lzo_voidp wrkmem /* NOT USED */ ); 71 72/* safe decompression with overrun testing */ 73LZO_EXTERN(int) 74lzo1y_decompress_safe ( const lzo_bytep src, lzo_uint src_len, 75 lzo_bytep dst, lzo_uintp dst_len, 76 lzo_voidp wrkmem /* NOT USED */ ); 77 78 79/*********************************************************************** 80// 81************************************************************************/ 82 83LZO_EXTERN(int) 84lzo1y_1_compress ( const lzo_bytep src, lzo_uint src_len, 85 lzo_bytep dst, lzo_uintp dst_len, 86 lzo_voidp wrkmem ); 87 88 89/*********************************************************************** 90// better compression ratio at the cost of more memory and time 91************************************************************************/ 92 93#define LZO1Y_999_MEM_COMPRESS ((lzo_uint32) (14 * 16384L * sizeof(short))) 94 95LZO_EXTERN(int) 96lzo1y_999_compress ( const lzo_bytep src, lzo_uint src_len, 97 lzo_bytep dst, lzo_uintp dst_len, 98 lzo_voidp wrkmem ); 99 100 101 102/*********************************************************************** 103// 104************************************************************************/ 105 106LZO_EXTERN(int) 107lzo1y_999_compress_dict ( const lzo_bytep in , lzo_uint in_len, 108 lzo_bytep out, lzo_uintp out_len, 109 lzo_voidp wrkmem, 110 const lzo_bytep dict, lzo_uint dict_len ); 111 112LZO_EXTERN(int) 113lzo1y_999_compress_level ( const lzo_bytep in , lzo_uint in_len, 114 lzo_bytep out, lzo_uintp out_len, 115 lzo_voidp wrkmem, 116 const lzo_bytep dict, lzo_uint dict_len, 117 lzo_callback_p cb, 118 int compression_level ); 119 120LZO_EXTERN(int) 121lzo1y_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 ); 125 126 127/*********************************************************************** 128// optimize a compressed data block 129************************************************************************/ 130 131LZO_EXTERN(int) 132lzo1y_optimize ( lzo_bytep in , lzo_uint in_len, 133 lzo_bytep out, lzo_uintp out_len, 134 lzo_voidp wrkmem /* NOT USED */ ); 135 136 137 138#ifdef __cplusplus 139} /* extern "C" */ 140#endif 141 142#endif /* already included */ 143 144 145/* vim:set ts=4 et: */ 146