1/* lzo1z.h -- public interface of the LZO1Z 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 __LZO1Z_H_INCLUDED 45#define __LZO1Z_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 LZO1Z_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) 65#define LZO1Z_MEM_DECOMPRESS (0) 66#define LZO1Z_MEM_OPTIMIZE (0) 67 68 69/* decompression */ 70LZO_EXTERN(int) 71lzo1z_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) 77lzo1z_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 86#if 0 87/* not yet implemented */ 88LZO_EXTERN(int) 89lzo1z_1_compress ( const lzo_bytep src, lzo_uint src_len, 90 lzo_bytep dst, lzo_uintp dst_len, 91 lzo_voidp wrkmem ); 92#endif 93 94 95/*********************************************************************** 96// better compression ratio at the cost of more memory and time 97************************************************************************/ 98 99#define LZO1Z_999_MEM_COMPRESS ((lzo_uint32) (14 * 16384L * sizeof(short))) 100 101LZO_EXTERN(int) 102lzo1z_999_compress ( const lzo_bytep src, lzo_uint src_len, 103 lzo_bytep dst, lzo_uintp dst_len, 104 lzo_voidp wrkmem ); 105 106 107/*********************************************************************** 108// 109************************************************************************/ 110 111LZO_EXTERN(int) 112lzo1z_999_compress_dict ( const lzo_bytep src, lzo_uint src_len, 113 lzo_bytep dst, lzo_uintp dst_len, 114 lzo_voidp wrkmem, 115 const lzo_bytep dict, lzo_uint dict_len ); 116 117LZO_EXTERN(int) 118lzo1z_999_compress_level ( const lzo_bytep src, lzo_uint src_len, 119 lzo_bytep dst, lzo_uintp dst_len, 120 lzo_voidp wrkmem, 121 const lzo_bytep dict, lzo_uint dict_len, 122 lzo_callback_p cb, 123 int compression_level ); 124 125LZO_EXTERN(int) 126lzo1z_decompress_dict_safe ( const lzo_bytep src, lzo_uint src_len, 127 lzo_bytep dst, lzo_uintp dst_len, 128 lzo_voidp wrkmem /* NOT USED */, 129 const lzo_bytep dict, lzo_uint dict_len ); 130 131 132/*********************************************************************** 133// optimize a compressed data block 134************************************************************************/ 135 136#if 0 137/* not yet implemented */ 138LZO_EXTERN(int) 139lzo1z_optimize ( lzo_bytep src, lzo_uint src_len, 140 lzo_bytep dst, lzo_uintp dst_len, 141 lzo_voidp wrkmem /* NOT USED */ ); 142#endif 143 144 145 146#ifdef __cplusplus 147} /* extern "C" */ 148#endif 149 150#endif /* already included */ 151 152 153/* vim:set ts=4 et: */ 154