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) 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 __LZO1Z_H_INCLUDED 42#define __LZO1Z_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 LZO1Z_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) 62#define LZO1Z_MEM_DECOMPRESS (0) 63#define LZO1Z_MEM_OPTIMIZE (0) 64 65 66/* decompression */ 67LZO_EXTERN(int) 68lzo1z_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) 74lzo1z_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 83#if 0 84/* not yet implemented */ 85LZO_EXTERN(int) 86lzo1z_1_compress ( const lzo_bytep src, lzo_uint src_len, 87 lzo_bytep dst, lzo_uintp dst_len, 88 lzo_voidp wrkmem ); 89#endif 90 91 92/*********************************************************************** 93// better compression ratio at the cost of more memory and time 94************************************************************************/ 95 96#define LZO1Z_999_MEM_COMPRESS ((lzo_uint32) (14 * 16384L * sizeof(short))) 97 98LZO_EXTERN(int) 99lzo1z_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 108LZO_EXTERN(int) 109lzo1z_999_compress_dict ( const lzo_bytep in , lzo_uint in_len, 110 lzo_bytep out, lzo_uintp out_len, 111 lzo_voidp wrkmem, 112 const lzo_bytep dict, lzo_uint dict_len ); 113 114LZO_EXTERN(int) 115lzo1z_999_compress_level ( const lzo_bytep in , lzo_uint in_len, 116 lzo_bytep out, lzo_uintp out_len, 117 lzo_voidp wrkmem, 118 const lzo_bytep dict, lzo_uint dict_len, 119 lzo_callback_p cb, 120 int compression_level ); 121 122LZO_EXTERN(int) 123lzo1z_decompress_dict_safe ( const lzo_bytep in, lzo_uint in_len, 124 lzo_bytep out, lzo_uintp out_len, 125 lzo_voidp wrkmem /* NOT USED */, 126 const lzo_bytep dict, lzo_uint dict_len ); 127 128 129/*********************************************************************** 130// optimize a compressed data block 131************************************************************************/ 132 133#if 0 134/* not yet implemented */ 135LZO_EXTERN(int) 136lzo1z_optimize ( lzo_bytep in , lzo_uint in_len, 137 lzo_bytep out, lzo_uintp out_len, 138 lzo_voidp wrkmem /* NOT USED */ ); 139#endif 140 141 142 143#ifdef __cplusplus 144} /* extern "C" */ 145#endif 146 147#endif /* already included */ 148 149 150/* vim:set ts=4 et: */ 151