summaryrefslogtreecommitdiff
path: root/app/lzo/src/stats1a.h
diff options
context:
space:
mode:
Diffstat (limited to 'app/lzo/src/stats1a.h')
-rw-r--r--app/lzo/src/stats1a.h140
1 files changed, 140 insertions, 0 deletions
diff --git a/app/lzo/src/stats1a.h b/app/lzo/src/stats1a.h
new file mode 100644
index 00000000..577f50c8
--- /dev/null
+++ b/app/lzo/src/stats1a.h
@@ -0,0 +1,140 @@
+/* stats1a.h -- statistics 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_STATS1A_H
+#define __LZO_STATS1A_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+/***********************************************************************
+// collect statistical information when compressing
+// used for finetuning, view with a debugger
+************************************************************************/
+
+#if (LZO_COLLECT_STATS)
+# define LZO_STATS(expr) expr
+#else
+# define LZO_STATS(expr) ((void) 0)
+#endif
+
+
+/***********************************************************************
+//
+************************************************************************/
+
+typedef struct {
+
+/* configuration */
+ unsigned rbits;
+ unsigned clevel;
+
+/* internal configuration */
+ unsigned dbits;
+ unsigned lbits;
+
+/* constants */
+ unsigned min_match_short;
+ unsigned max_match_short;
+ unsigned min_match_long;
+ unsigned max_match_long;
+ unsigned min_offset;
+ unsigned max_offset;
+ unsigned r0min;
+ unsigned r0fast;
+ unsigned r0max;
+
+/* counts */
+ long short_matches;
+ long long_matches;
+ long r1_matches;
+ long lit_runs;
+ long lit_runs_after_long_match;
+ long r0short_runs;
+ long r0fast_runs;
+ long r0long_runs;
+
+/* */
+ long lit_run[RSIZE];
+ long lit_run_after_long_match[RSIZE];
+ long short_match[MAX_MATCH_SHORT + 1];
+ long long_match[MAX_MATCH_LONG + 1];
+ long marker[256];
+
+/* these could prove useful for further optimizations */
+ long short_match_offset_osize[MAX_MATCH_SHORT + 1];
+ long short_match_offset_256[MAX_MATCH_SHORT + 1];
+ long short_match_offset_1024[MAX_MATCH_SHORT + 1];
+ long matches_out_of_range;
+ long matches_out_of_range_2;
+ long matches_out_of_range_4;
+ long match_out_of_range[MAX_MATCH_SHORT + 1];
+
+/* */
+ long in_len;
+ long out_len;
+}
+lzo1a_stats_t;
+
+extern lzo1a_stats_t *lzo1a_stats;
+
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* already included */
+
+/*
+vi:ts=4:et
+*/