Imported Upstream version 2.03upstream/2.03

1 files changed, 137 insertions, 0 deletions

diff --git a/src/stats1a.h b/src/stats1a.h
new file mode 100644
index 0000000..5116f80
--- /dev/null
+++ b/src/stats1a.h
@@ -0,0 +1,137 @@
+/* stats1a.h -- statistics for the the LZO1A algorithm
+
+   This file is part of the LZO real-time data compression library.
+
+   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
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+/***********************************************************************
+// collect statistical information when compressing
+// used for finetuning, view with a debugger
+************************************************************************/
+
+#if defined(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
+*/