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) 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 __LZO1Y_H_INCLUDED 45#define __LZO1Y_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 LZO1Y_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) 65#define LZO1Y_MEM_DECOMPRESS (0) 66#define LZO1Y_MEM_OPTIMIZE (0) 67 68 69/* decompression */ 70LZO_EXTERN(int) 71lzo1y_decompress ( const lzo_bytep src, lzo_uint src_len, 72 lzo_bytep dst, lzo_uintp dst_len, 73 lzo_voidp wrkmem /* NOT USED */ ); 74 75/* safe decompression with overrun testing */ 76LZO_EXTERN(int) 77lzo1y_decompress_safe ( const lzo_bytep src, lzo_uint src_len, 78 lzo_bytep dst, lzo_uintp dst_len, 79 lzo_voidp wrkmem /* NOT USED */ ); 80 81 82/*********************************************************************** 83// 84************************************************************************/ 85 86LZO_EXTERN(int) 87lzo1y_1_compress ( const lzo_bytep src, lzo_uint src_len, 88 lzo_bytep dst, lzo_uintp dst_len, 89 lzo_voidp wrkmem ); 90 91 92/*********************************************************************** 93// better compression ratio at the cost of more memory and time 94************************************************************************/ 95 96#define LZO1Y_999_MEM_COMPRESS ((lzo_uint32) (14 * 16384L * sizeof(short))) 97 98LZO_EXTERN(int) 99lzo1y_999_compress ( const lzo_bytep src, lzo_uint src_len, 100 lzo_bytep dst, lzo_uintp dst_len, 101 lzo_voidp wrkmem ); 102 103 104 105/*********************************************************************** 106// 107************************************************************************/ 108 109LZO_EXTERN(int) 110lzo1y_999_compress_dict ( const lzo_bytep src, lzo_uint src_len, 111 lzo_bytep dst, lzo_uintp dst_len, 112 lzo_voidp wrkmem, 113 const lzo_bytep dict, lzo_uint dict_len ); 114 115LZO_EXTERN(int) 116lzo1y_999_compress_level ( const lzo_bytep src, lzo_uint src_len, 117 lzo_bytep dst, lzo_uintp dst_len, 118 lzo_voidp wrkmem, 119 const lzo_bytep dict, lzo_uint dict_len, 120 lzo_callback_p cb, 121 int compression_level ); 122 123LZO_EXTERN(int) 124lzo1y_decompress_dict_safe ( const lzo_bytep src, lzo_uint src_len, 125 lzo_bytep dst, lzo_uintp dst_len, 126 lzo_voidp wrkmem /* NOT USED */, 127 const lzo_bytep dict, lzo_uint dict_len ); 128 129 130/*********************************************************************** 131// optimize a compressed data block 132************************************************************************/ 133 134LZO_EXTERN(int) 135lzo1y_optimize ( lzo_bytep src, lzo_uint src_len, 136 lzo_bytep dst, lzo_uintp dst_len, 137 lzo_voidp wrkmem /* NOT USED */ ); 138 139 140 141#ifdef __cplusplus 142} /* extern "C" */ 143#endif 144 145#endif /* already included */ 146 147 148/* vim:set ts=4 et: */ 149