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Diffstat (limited to 'lzo/include/lzo/lzo1y.h')
| -rw-r--r-- | lzo/include/lzo/lzo1y.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/lzo/include/lzo/lzo1y.h b/lzo/include/lzo/lzo1y.h new file mode 100644 index 00000000..7a7f1175 --- /dev/null +++ b/lzo/include/lzo/lzo1y.h @@ -0,0 +1,145 @@ +/* lzo1y.h -- public interface of the LZO1Y compression algorithm + + This file is part of the LZO real-time data compression library. + + Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer + All Rights Reserved. + + 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., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + + Markus F.X.J. Oberhumer + <markus@oberhumer.com> + http://www.oberhumer.com/opensource/lzo/ + */ + + +#ifndef __LZO1Y_H_INCLUDED +#define __LZO1Y_H_INCLUDED + +#ifndef __LZOCONF_H_INCLUDED +#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 LZO1Y_MEM_COMPRESS ((lzo_uint32) (16384L * lzo_sizeof_dict_t)) +#define LZO1Y_MEM_DECOMPRESS (0) +#define LZO1Y_MEM_OPTIMIZE (0) + + +/* decompression */ +LZO_EXTERN(int) +lzo1y_decompress ( const lzo_bytep src, lzo_uint src_len, + lzo_bytep dst, lzo_uintp dst_len, + lzo_voidp wrkmem /* NOT USED */ ); + +/* safe decompression with overrun testing */ +LZO_EXTERN(int) +lzo1y_decompress_safe ( const lzo_bytep src, lzo_uint src_len, + lzo_bytep dst, lzo_uintp dst_len, + lzo_voidp wrkmem /* NOT USED */ ); + + +/*********************************************************************** +// +************************************************************************/ + +LZO_EXTERN(int) +lzo1y_1_compress ( const lzo_bytep src, lzo_uint src_len, + lzo_bytep dst, lzo_uintp dst_len, + lzo_voidp wrkmem ); + + +/*********************************************************************** +// better compression ratio at the cost of more memory and time +************************************************************************/ + +#define LZO1Y_999_MEM_COMPRESS ((lzo_uint32) (14 * 16384L * sizeof(short))) + +LZO_EXTERN(int) +lzo1y_999_compress ( const lzo_bytep src, lzo_uint src_len, + lzo_bytep dst, lzo_uintp dst_len, + lzo_voidp wrkmem ); + + + +/*********************************************************************** +// +************************************************************************/ + +LZO_EXTERN(int) +lzo1y_999_compress_dict ( const lzo_bytep in , lzo_uint in_len, + lzo_bytep out, lzo_uintp out_len, + lzo_voidp wrkmem, + const lzo_bytep dict, lzo_uint dict_len ); + +LZO_EXTERN(int) +lzo1y_999_compress_level ( const lzo_bytep in , lzo_uint in_len, + lzo_bytep out, lzo_uintp out_len, + lzo_voidp wrkmem, + const lzo_bytep dict, lzo_uint dict_len, + lzo_callback_p cb, + int compression_level ); + +LZO_EXTERN(int) +lzo1y_decompress_dict_safe ( const lzo_bytep in, lzo_uint in_len, + lzo_bytep out, lzo_uintp out_len, + lzo_voidp wrkmem /* NOT USED */, + const lzo_bytep dict, lzo_uint dict_len ); + + +/*********************************************************************** +// optimize a compressed data block +************************************************************************/ + +LZO_EXTERN(int) +lzo1y_optimize ( lzo_bytep in , lzo_uint in_len, + lzo_bytep out, lzo_uintp out_len, + lzo_voidp wrkmem /* NOT USED */ ); + + + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* already included */ + + +/* vim:set ts=4 et: */ |