129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
/*
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* $QNXtpLicenseC:
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* Copyright 2007, QNX Software Systems. All Rights Reserved.
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*
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* You must obtain a written license from and pay applicable license fees to QNX
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* Software Systems before you may reproduce, modify or distribute this software,
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* or any work that includes all or part of this software. Free development
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* licenses are available for evaluation and non-commercial purposes. For more
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* information visit http://licensing.qnx.com or email licensing@qnx.com.
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*
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* This file may contain contributions from others. Please review this entire
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* file for other proprietary rights or license notices, as well as the QNX
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* Development Suite License Guide at http://licensing.qnx.com/license-guide/
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* for other information.
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* $
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*/
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/* stats1a.h -- statistics for the 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) 1996-1999 Markus Franz Xaver Johannes Oberhumer
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Markus F.X.J. Oberhumer
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markus.oberhumer@jk.uni-linz.ac.at
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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 LZO package and is subject
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to change.
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*/
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#ifndef __LZO_STATS1A_H
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#define __LZO_STATS1A_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***********************************************************************
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// collect statistical information when compressing
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// used for finetuning, view with a debugger
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************************************************************************/
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#if defined(LZO_COLLECT_STATS)
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# define LZO_STATS(expr) expr
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#else
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# define LZO_STATS(expr) ((void) 0)
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#endif
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/***********************************************************************
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//
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************************************************************************/
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typedef struct {
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/* configuration */
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unsigned rbits;
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unsigned clevel;
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/* internal configuration */
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unsigned dbits;
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unsigned lbits;
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/* constants */
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unsigned min_match_short;
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unsigned max_match_short;
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unsigned min_match_long;
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unsigned max_match_long;
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unsigned min_offset;
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unsigned max_offset;
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unsigned r0min;
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unsigned r0fast;
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unsigned r0max;
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/* counts */
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long short_matches;
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long long_matches;
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long r1_matches;
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long lit_runs;
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long lit_runs_after_long_match;
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long r0short_runs;
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long r0fast_runs;
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long r0long_runs;
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/* */
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long lit_run[RSIZE];
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long lit_run_after_long_match[RSIZE];
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long short_match[MAX_MATCH_SHORT + 1];
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long long_match[MAX_MATCH_LONG + 1];
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long marker[256];
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/* these could prove useful for further optimizations */
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long short_match_offset_osize[MAX_MATCH_SHORT + 1];
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long short_match_offset_256[MAX_MATCH_SHORT + 1];
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long short_match_offset_1024[MAX_MATCH_SHORT + 1];
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long matches_out_of_range;
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long matches_out_of_range_2;
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long matches_out_of_range_4;
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long match_out_of_range[MAX_MATCH_SHORT + 1];
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/* */
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long in_len;
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long out_len;
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}
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lzo1a_stats_t;
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extern lzo1a_stats_t *lzo1a_stats;
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* already included */
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/*
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vi:ts=4
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*/
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