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Diffstat (limited to 'lzo/src/lzo1b_cc.c')
| -rw-r--r-- | lzo/src/lzo1b_cc.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/lzo/src/lzo1b_cc.c b/lzo/src/lzo1b_cc.c deleted file mode 100644 index cc7c2e87..00000000 --- a/lzo/src/lzo1b_cc.c +++ /dev/null @@ -1,170 +0,0 @@ -/* lzo1b_cc.c -- LZO1B compression internal entry point - - 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/ - */ - - -#define LZO_NEED_DICT_H 1 -#include "config1b.h" - - -/*********************************************************************** -// compression internal entry point. -************************************************************************/ - -int _lzo1b_do_compress ( const lzo_bytep in, lzo_uint in_len, - lzo_bytep out, lzo_uintp out_len, - lzo_voidp wrkmem, - lzo_compress_t func ) -{ - int r; -#if defined(LZO_TEST_COMPRESS_OVERRUN) - lzo_uint avail_out = *out_len; -#endif - - -#if (LZO_COLLECT_STATS) - _lzo1b_stats_init(lzo_stats); - lzo_stats->in_len = in_len; -#endif - - - /* don't try to compress a block that's too short */ - if (in_len == 0) - { - *out_len = 0; - r = LZO_E_OK; - } - else if (in_len <= MIN_LOOKAHEAD + 1) - { -#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE) - *out_len = 0; - r = LZO_E_NOT_COMPRESSIBLE; -#else - *out_len = pd(STORE_RUN(out,in,in_len), out); - r = (*out_len > in_len) ? LZO_E_OK : LZO_E_ERROR; -#endif - } - else - r = func(in,in_len,out,out_len,wrkmem); - - -#if defined(LZO_EOF_CODE) -#if defined(LZO_TEST_COMPRESS_OVERRUN) - if (r == LZO_E_OK && avail_out - *out_len < 3) - r = LZO_E_COMPRESS_OVERRUN; -#endif - if (r == LZO_E_OK) - { - lzo_bytep op = out + *out_len; - op[0] = M3_MARKER | 1; - op[1] = 0; - op[2] = 0; - *out_len += 3; - } -#endif - - -#if (LZO_COLLECT_STATS) - lzo_stats->out_len = *out_len; - lzo_stats->match_bytes = - 1 * lzo_stats->m1_matches + 2 * lzo_stats->m2_matches + - 3 * lzo_stats->m3_matches + 4 * lzo_stats->m4_matches; - _lzo1b_stats_calc(lzo_stats); -#endif - - return r; -} - - -/*********************************************************************** -// note: this is not thread safe, but as it is used for finetuning only -// we don't care -************************************************************************/ - -#undef lzo_stats -/* lzo_stats_t is still defined */ - - -#if (LZO_COLLECT_STATS) - -static lzo_stats_t lzo_statistics; -lzo_stats_t * const lzo1b_stats = &lzo_statistics; - - -void _lzo1b_stats_init(lzo_stats_t *lzo_stats) -{ - lzo_memset(lzo_stats,0,sizeof(*lzo_stats)); -} - - -void _lzo1b_stats_calc(lzo_stats_t *lzo_stats) -{ - lzo_stats->matches = - lzo_stats->m1_matches + lzo_stats->m2_matches + - lzo_stats->m3_matches + lzo_stats->m4_matches; - - lzo_stats->literal_overhead = lzo_stats->lit_runs + - 2 * (lzo_stats->r0short_runs + lzo_stats->r0fast_runs + - lzo_stats->r0long_runs); - lzo_stats->literal_bytes = lzo_stats->literals + - lzo_stats->literal_overhead; - -#if 0 - assert(lzo_stats->match_bytes + lzo_stats->literal_bytes == - lzo_stats->out_len); -#endif - - lzo_stats->m2_matches -= lzo_stats->r1_matches; - lzo_stats->m2_match[M2_MIN_LEN] -= lzo_stats->r1_matches; - - if (lzo_stats->literals > 0) - lzo_stats->literal_overhead_percent = - 100.0 * lzo_stats->literal_overhead / lzo_stats->literals; -} - - -#endif - - -/* -vi:ts=4:et -*/ - |