| /* |
| * Copyright (C) 2008 Nokia Corporation. |
| * Copyright (C) 2008 University of Szeged, Hungary |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., 51 |
| * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| * Authors: Artem Bityutskiy |
| * Adrian Hunter |
| * Zoltan Sogor |
| */ |
| |
| #ifndef __UBIFS_COMPRESS_H__ |
| #define __UBIFS_COMPRESS_H__ |
| |
| /* |
| * Compressors may end-up with more data in the output buffer than in the input |
| * buffer. This constant defined the worst case factor, i.e. we assume that the |
| * output buffer may be at max. WORST_COMPR_FACTOR times larger than input |
| * buffer. |
| */ |
| #define WORST_COMPR_FACTOR 4 |
| |
| enum compression_type |
| { |
| MKFS_UBIFS_COMPR_NONE, |
| MKFS_UBIFS_COMPR_LZO, |
| MKFS_UBIFS_COMPR_ZLIB, |
| }; |
| |
| int compress_data(void *in_buf, size_t in_len, void *out_buf, size_t *out_len, |
| int type); |
| int init_compression(void); |
| void destroy_compression(void); |
| |
| #endif |
