mirror of https://github.com/libAthena/athena.git
183 lines
4.4 KiB
C
183 lines
4.4 KiB
C
/* config1a.h -- configuration for the LZO1A algorithm
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This file is part of the LZO real-time data compression library.
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Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
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All Rights Reserved.
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The LZO library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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The LZO library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the LZO library; see the file COPYING.
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If not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Markus F.X.J. Oberhumer
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<markus@oberhumer.com>
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http://www.oberhumer.com/opensource/lzo/
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*/
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/* WARNING: this file should *not* be used by applications. It is
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part of the implementation of the library and is subject
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to change.
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*/
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#ifndef __LZO_CONFIG1A_H
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#define __LZO_CONFIG1A_H 1
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#include "lzo_conf.h"
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#include <lzo/lzo1a.h>
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#undef LZO_COLLECT_STATS /* no support for stats here */
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/***********************************************************************
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// algorithm configuration
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************************************************************************/
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/* run bits (4 - 5) - the compressor and the decompressor
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* must use the same value. */
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#if !defined(RBITS)
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# define RBITS 5
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#endif
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/* dictionary depth (0 - 6) - this only affects the compressor.
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* 0 is fastest, 6 is best compression ratio */
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#if !defined(DDBITS)
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# define DDBITS 0
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#endif
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/* compression level (1 - 9) - this only affects the compressor.
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* 1 is fastest, 9 is best compression ratio */
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#if !defined(CLEVEL)
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# define CLEVEL 1 /* fastest by default */
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#endif
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/* check configuration */
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#if (RBITS < 4 || RBITS > 5)
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# error "invalid RBITS"
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#endif
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#if (DDBITS < 0 || DDBITS > 6)
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# error "invalid DDBITS"
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#endif
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#if (CLEVEL < 1 || CLEVEL > 9)
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# error "invalid CLEVEL"
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#endif
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/***********************************************************************
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// internal configuration
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************************************************************************/
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/* add a special code so that the decompressor can detect the
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* end of the compressed data block (overhead is 3 bytes per block) */
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#undef LZO_EOF_CODE
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/***********************************************************************
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// algorithm internal configuration
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************************************************************************/
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/* choose the hashing strategy */
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#ifndef LZO_HASH
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#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
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#endif
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/* config */
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#define R_BITS RBITS
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#define DD_BITS DDBITS
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#ifndef D_BITS
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#define D_BITS 16
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#endif
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/***********************************************************************
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// optimization and debugging
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************************************************************************/
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/* Collect statistics */
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#if 0 && !defined(LZO_COLLECT_STATS)
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# define LZO_COLLECT_STATS 1
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#endif
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/***********************************************************************
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//
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************************************************************************/
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#define M3O_BITS M2O_BITS
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#define M3L_BITS CHAR_BIT
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#define M3_MAX_LEN (M3_MIN_LEN + LZO_SIZE(M3L_BITS) - 1)
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#define _MAX_OFFSET _M2_MAX_OFFSET
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#define LZO_NO_M3 1
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#include "lzo1b_de.h"
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#include "stats1b.h"
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#include "lzo1b_cc.h"
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/***********************************************************************
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// check for total LZO1/LZO1A compatibility
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************************************************************************/
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#undef M2_MARKER
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#define M2_MARKER (1 << M2O_BITS)
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#if (R_BITS != 5)
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# error
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#endif
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#if (M2O_BITS != 5)
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# error
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#endif
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#if (M3O_BITS != 5)
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# error
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#endif
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#if (M2_MIN_LEN != 3)
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# error
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#endif
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#if (M2_MAX_LEN != 8)
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# error
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#endif
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#if (M3_MIN_LEN != 9)
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# error
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#endif
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#if (M3_MAX_LEN != 264)
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# error
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#endif
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#if (_M2_MAX_OFFSET != (1u << 13))
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# error
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#endif
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#if (_M2_MAX_OFFSET != _M3_MAX_OFFSET)
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# error
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#endif
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#if (_M2_MAX_OFFSET != _MAX_OFFSET)
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# error
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#endif
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#if (R0MIN != 32)
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# error
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#endif
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#if (R0MAX != 287)
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# error
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#endif
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#if (R0FAST != 280)
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# error
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#endif
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#endif /* already included */
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/* vim:set ts=4 sw=4 et: */
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