/* lzo1x.h -- public interface of the LZO1X compression algorithm This file is part of the LZO real-time data compression library. Copyright (C) 1996-2017 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 http://www.oberhumer.com/opensource/lzo/ */ #ifndef __LZO1X_H_INCLUDED #define __LZO1X_H_INCLUDED 1 #ifndef __LZOCONF_H_INCLUDED #include #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 LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS #define LZO1X_MEM_DECOMPRESS (0) #define LZO1X_MEM_OPTIMIZE (0) /* decompression */ LZO_EXTERN(int) lzo1x_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) lzo1x_decompress_safe ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem /* NOT USED */ ); /*********************************************************************** // ************************************************************************/ #define LZO1X_1_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t)) LZO_EXTERN(int) lzo1x_1_compress ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem ); /*********************************************************************** // special compressor versions ************************************************************************/ /* this version needs only 8 KiB work memory */ #define LZO1X_1_11_MEM_COMPRESS ((lzo_uint32_t) (2048L * lzo_sizeof_dict_t)) LZO_EXTERN(int) lzo1x_1_11_compress ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem ); /* this version needs 16 KiB work memory */ #define LZO1X_1_12_MEM_COMPRESS ((lzo_uint32_t) (4096L * lzo_sizeof_dict_t)) LZO_EXTERN(int) lzo1x_1_12_compress ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem ); /* use this version if you need a little more compression speed */ #define LZO1X_1_15_MEM_COMPRESS ((lzo_uint32_t) (32768L * lzo_sizeof_dict_t)) LZO_EXTERN(int) lzo1x_1_15_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 LZO1X_999_MEM_COMPRESS ((lzo_uint32_t) (14 * 16384L * sizeof(short))) LZO_EXTERN(int) lzo1x_999_compress ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem ); /*********************************************************************** // ************************************************************************/ LZO_EXTERN(int) lzo1x_999_compress_dict ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem, const lzo_bytep dict, lzo_uint dict_len ); LZO_EXTERN(int) lzo1x_999_compress_level ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem, const lzo_bytep dict, lzo_uint dict_len, lzo_callback_p cb, int compression_level ); LZO_EXTERN(int) lzo1x_decompress_dict_safe ( const lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem /* NOT USED */, const lzo_bytep dict, lzo_uint dict_len ); /*********************************************************************** // optimize a compressed data block ************************************************************************/ LZO_EXTERN(int) lzo1x_optimize ( lzo_bytep src, lzo_uint src_len, lzo_bytep dst, lzo_uintp dst_len, lzo_voidp wrkmem /* NOT USED */ ); #ifdef __cplusplus } /* extern "C" */ #endif #endif /* already included */ /* vim:set ts=4 sw=4 et: */