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-/* lzo1a_de.h -- definitions for the the LZO1A algorithm
-
- This file is part of the LZO real-time data compression library.
-
- Copyright (C) 2011 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2010 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2009 Markus Franz Xaver Johannes Oberhumer
- 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/
- */
-
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the LZO package and is subject
- to change.
- */
-
-
-#ifndef __LZO_DEFS_H
-#define __LZO_DEFS_H 1
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/***********************************************************************
-//
-************************************************************************/
-
-/*
- Format of the marker byte
-
-
- 76543210
- --------
- 00000000 a long literal run ('R0' run) - there are short and long R0 runs
- 000rrrrr a short literal run with len r
- mmmooooo a short match (len = 2+m, o = offset low bits)
- 111ooooo a long match (o = offset low bits)
-*/
-
-
-#define RSIZE (1 << RBITS)
-#define RMASK (RSIZE - 1)
-
-#define MBITS (8 - OBITS)
-#define MSIZE (1 << MBITS)
-#define MMASK (MSIZE - 1)
-
-#define OBITS RBITS /* offset and run-length use same bits */
-#define OSIZE (1 << OBITS)
-#define OMASK (OSIZE - 1)
-
-
-/* additional bits for coding the length in a long match */
-#define LBITS 8
-#define LSIZE (1 << LBITS)
-#define LMASK (LSIZE - 1)
-
-
-/***********************************************************************
-// some macros to improve readability
-************************************************************************/
-
-/* Minimum len of a match */
-#define MIN_MATCH 3
-#define THRESHOLD (MIN_MATCH - 1)
-
-/* Min-/Maximum len of a match coded in 2 bytes */
-#define MIN_MATCH_SHORT (MIN_MATCH)
-#define MAX_MATCH_SHORT (MIN_MATCH_SHORT + (MSIZE - 2) - 1)
-/* why (MSIZE - 2) ? because 0 is used to mark runs,
- * and MSIZE-1 is used to mark a long match */
-
-/* Min-/Maximum len of a match coded in 3 bytes */
-#define MIN_MATCH_LONG (MAX_MATCH_SHORT + 1)
-#define MAX_MATCH_LONG (MIN_MATCH_LONG + LSIZE - 1)
-
-/* Min-/Maximum offset of a match */
-#define MIN_OFFSET 1
-#define MAX_OFFSET (1 << (CHAR_BIT + OBITS))
-
-
-/* R0 literal run (a long run) */
-
-#define R0MIN (RSIZE) /* Minimum len of R0 run of literals */
-#define R0MAX (R0MIN + 255) /* Maximum len of R0 run of literals */
-#define R0FAST (R0MAX & ~7) /* R0MAX aligned to 8 byte boundary */
-
-#if (R0MAX - R0FAST != 7) || ((R0FAST & 7) != 0)
-# error "something went wrong"
-#endif
-
-/* 7 special codes from R0FAST+1 .. R0MAX
- * these codes mean long R0 runs with lengths
- * 512, 1024, 2048, 4096, 8192, 16384, 32768 */
-
-
-/*
-
-RBITS | MBITS MIN THR. MSIZE MAXS MINL MAXL MAXO R0MAX R0FAST
-======+===============================================================
- 3 | 5 3 2 32 32 33 288 2048 263 256
- 4 | 4 3 2 16 16 17 272 4096 271 264
- 5 | 3 3 2 8 8 9 264 8192 287 280
-
- */
-
-
-/***********************************************************************
-//
-************************************************************************/
-
-#define DBITS 13
-#include "lzo_dict.h"
-#define DVAL_LEN DVAL_LOOKAHEAD
-
-
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* already included */
-
-/*
-vi:ts=4:et
-*/
-