source: bootcd/isolinux/syslinux-6.03/lzo/src/lzo1x_1k.c

/* lzo1x_1k.c -- LZO1X-1(11) compression (needs only 8kB work memory)

   This file is part of the LZO real-time data compression library.

   Copyright (C) 1996-2014 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/
 */


#include "lzo_conf.h"
#if 1 && defined(UA_GET_LE32)
#undef  LZO_DICT_USE_PTR
#define LZO_DICT_USE_PTR 0
#undef  lzo_dict_t
#define lzo_dict_t lzo_uint16_t
#endif

#define LZO_NEED_DICT_H 1
#ifndef D_BITS
#define D_BITS          11
#endif
#define D_INDEX1(d,p)       d = DM(DMUL(0x21,DX2(p,3,5)) >> 5)
#define D_INDEX2(d,p)       d = d ^ D_MASK
#if 1
#define DINDEX(dv,p)        DM(((DMUL(0x1824429d,dv)) >> (32-D_BITS)))
#else
#define DINDEX(dv,p)        DM((dv) + ((dv) >> (32-D_BITS)))
#endif
#include "config1x.h"
#define LZO_DETERMINISTIC !(LZO_DICT_USE_PTR)

#ifndef DO_COMPRESS
#define DO_COMPRESS     lzo1x_1_11_compress
#endif

#include "lzo1x_c.ch"