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Diffstat (limited to 'zbar/decoder/code39.h')
-rw-r--r-- | zbar/decoder/code39.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/zbar/decoder/code39.h b/zbar/decoder/code39.h new file mode 100644 index 0000000..d103121 --- /dev/null +++ b/zbar/decoder/code39.h @@ -0,0 +1,50 @@ +/*------------------------------------------------------------------------ + * 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 |