/* lzo1a_99.c -- implementation of the LZO1A-99 algorithm

   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/

 */

#define COMPRESS_ID     99

#define DDBITS          3

#define CLEVEL          9

/***********************************************************************

//

************************************************************************/

#define LZO_NEED_DICT_H 1

#include "config1a.h"

/***********************************************************************

// compression internal entry point.

************************************************************************/

static int

_lzo1a_do_compress ( const lzo_bytep in,  lzo_uint  in_len,

                           lzo_bytep out, lzo_uintp out_len,

                           lzo_voidp wrkmem,

                           lzo_compress_t func )

{

    int r;

    /* don't try to compress a block that's too short */

    if (in_len == 0)

    {

        *out_len = 0;

        r = LZO_E_OK;

    }

    else if (in_len <= MIN_LOOKAHEAD + 1)

    {

#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)

        *out_len = 0;

        r = LZO_E_NOT_COMPRESSIBLE;

#else

        *out_len = pd(STORE_RUN(out,in,in_len), out);

        r = (*out_len > in_len) ? LZO_E_OK : LZO_E_ERROR;

#endif

    }

    else

        r = func(in,in_len,out,out_len,wrkmem);

    return r;

}

/***********************************************************************

//

************************************************************************/

#if !defined(COMPRESS_ID)

#define COMPRESS_ID     _LZO_ECONCAT2(DD_BITS,CLEVEL)

#endif

#define LZO_CODE_MATCH_INCLUDE_FILE     "lzo1a_cm.ch"

#include "lzo1b_c.ch"

/***********************************************************************

//

************************************************************************/

#define LZO_COMPRESS \

    LZO_PP_ECONCAT3(lzo1a_,COMPRESS_ID,_compress)

#define LZO_COMPRESS_FUNC \

    LZO_PP_ECONCAT3(_lzo1a_,COMPRESS_ID,_compress_func)

/***********************************************************************

//

************************************************************************/

LZO_PUBLIC(int)

LZO_COMPRESS ( const lzo_bytep in,  lzo_uint  in_len,

                     lzo_bytep out, lzo_uintp out_len,

                     lzo_voidp wrkmem )

{

    return _lzo1a_do_compress(in,in_len,out,out_len,wrkmem,do_compress);

}

/*

vi:ts=4:et

*/