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- /* lzo1c.h -- public interface of the LZO1C compression algorithm
-
- This file is part of the LZO real-time data compression library.
-
- Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
-
- The LZO library 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 of
- the License, or (at your option) any later version.
-
- The LZO library 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 the LZO library; see the file COPYING.
- If not, write to the Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- Markus F.X.J. Oberhumer
- markus.oberhumer@jk.uni-linz.ac.at
- */
-
-
- #ifndef __LZO1C_H
- #define __LZO1C_H
-
- #ifndef __LZOCONF_H
- #include <lzoconf.h>
- #endif
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
-
- /***********************************************************************
- //
- ************************************************************************/
-
- /* Memory required for the wrkmem parameter.
- * When the required size is 0, you can also pass a NULL pointer.
- */
-
- #define LZO1C_MEM_COMPRESS ((lzo_uint) (16384L * sizeof(lzo_byte *)))
- #define LZO1C_MEM_DECOMPRESS (0)
-
-
- /* compression levels */
- #define LZO1C_BEST_SPEED 1
- #define LZO1C_BEST_COMPRESSION 9
- #define LZO1C_DEFAULT_COMPRESSION (-1) /* fastest by default */
-
-
- LZO_EXTERN(int)
- lzo1c_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem,
- int compression_level );
-
- /* fast decompression */
- LZO_EXTERN(int)
- lzo1c_decompress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem /* NOT USED */ );
-
- /* safe decompression with overrun testing */
- LZO_EXTERN(int)
- lzo1c_decompress_safe ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem /* NOT USED */ );
-
- /* fast decompression in assembler - see notes in source code */
- #if defined(__GNUC__) && defined(__i386__)
- # define LZO1C_DECOMPRESS_ASM
- #endif
- #if defined(LZO1C_DECOMPRESS_ASM)
- LZO_EXTERN(int)
- lzo1c_decompress_asm ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem /* NOT USED */ );
- #endif
-
-
- /***********************************************************************
- //
- ************************************************************************/
-
- LZO_EXTERN(int)
- lzo1c_1_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_2_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_3_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_4_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_5_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_6_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_7_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_8_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- LZO_EXTERN(int)
- lzo1c_9_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
-
-
- /***********************************************************************
- // better compression ratio at the cost of more memory and time
- ************************************************************************/
-
- #define LZO1C_99_MEM_COMPRESS ((lzo_uint) (65536L * sizeof(lzo_byte *)))
-
- #if !defined(LZO_99_UNSUPPORTED)
- LZO_EXTERN(int)
- lzo1c_99_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- #endif
-
-
- #define LZO1C_999_MEM_COMPRESS ((lzo_uint) (5 * 16384L * sizeof(short)))
-
- #if !defined(LZO_999_UNSUPPORTED)
- LZO_EXTERN(int)
- lzo1c_999_compress ( const lzo_byte *src, lzo_uint src_len,
- lzo_byte *dst, lzo_uint *dst_len,
- lzo_voidp wrkmem );
- #endif
-
-
-
- #ifdef __cplusplus
- } /* extern "C" */
- #endif
-
- #endif /* already included */
-
- /*
- vi:ts=4
- */
-