Ventoy/SQUASHFS/squashfs-tools-4.4/squashfs-tools/lzo_wrapper.h
2020-04-05 00:08:01 +08:00

79 lines
2.0 KiB
C

#ifndef LZO_WRAPPER_H
#define LZO_WRAPPER_H
/*
* Squashfs
*
* Copyright (c) 2013
* Phillip Lougher <phillip@squashfs.org.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* lzo_wrapper.h
*
*/
#ifndef linux
#define __BYTE_ORDER BYTE_ORDER
#define __BIG_ENDIAN BIG_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#else
#include <endian.h>
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
extern unsigned int inswap_le32(unsigned int);
#define SQUASHFS_INSWAP_COMP_OPTS(s) { \
(s)->algorithm = inswap_le32((s)->algorithm); \
(s)->compression_level = inswap_le32((s)->compression_level); \
}
#else
#define SQUASHFS_INSWAP_COMP_OPTS(s)
#endif
/* Define the compression flags recognised. */
#define SQUASHFS_LZO1X_1 0
#define SQUASHFS_LZO1X_1_11 1
#define SQUASHFS_LZO1X_1_12 2
#define SQUASHFS_LZO1X_1_15 3
#define SQUASHFS_LZO1X_999 4
/* Default compression level used by SQUASHFS_LZO1X_999 */
#define SQUASHFS_LZO1X_999_COMP_DEFAULT 8
struct lzo_comp_opts {
int algorithm;
int compression_level;
};
struct lzo_algorithm {
char *name;
int size;
int (*compress) (const lzo_bytep, lzo_uint, lzo_bytep, lzo_uintp,
lzo_voidp);
};
struct lzo_stream {
void *workspace;
void *buffer;
};
#define LZO_MAX_EXPANSION(size) (size + (size / 16) + 64 + 3)
int lzo1x_999_wrapper(const lzo_bytep, lzo_uint, lzo_bytep, lzo_uintp,
lzo_voidp);
#endif