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/*------------------------------------------------------------------------
* Copyright 2008-2009 (c) Jeff Brown <spadix@users.sourceforge.net>
*
* This file is part of the ZBar Bar Code Reader.
*
* The ZBar Bar Code Reader is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* The ZBar Bar Code Reader 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser Public License
* along with the ZBar Bar Code Reader; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* http://sourceforge.net/projects/zbar
*------------------------------------------------------------------------*/
#ifndef _CODE39_H_
#define _CODE39_H_
/* Code 39 specific decode state */
typedef struct code39_decoder_s {
unsigned direction : 1; /* scan direction: 0=fwd, 1=rev */
unsigned element : 4; /* element offset 0-8 */
int character : 12; /* character position in symbol */
unsigned s9; /* current character width */
unsigned width; /* last character width */
unsigned config;
int configs[NUM_CFGS]; /* int valued configurations */
} code39_decoder_t;
/* reset Code 39 specific state */
static inline void code39_reset(code39_decoder_t *dcode39)
{
dcode39->direction = 0;
dcode39->element = 0;
dcode39->character = -1;
dcode39->s9 = 0;
}
/* decode Code 39 symbols */
zbar_symbol_type_t _zbar_decode_code39(zbar_decoder_t *dcode);
#endif
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