ZBar bar code reader . http://zbar.sourceforge.net/ ZBar is licensed under the GNU LGPL 2.1 to enable development of both open source and commercial projects.
Dependents: GR-PEACH_Camera_in_barcode levkov_ov7670
code128.h
00001 /*------------------------------------------------------------------------ 00002 * Copyright 2007-2009 (c) Jeff Brown <spadix@users.sourceforge.net> 00003 * 00004 * This file is part of the ZBar Bar Code Reader. 00005 * 00006 * The ZBar Bar Code Reader is free software; you can redistribute it 00007 * and/or modify it under the terms of the GNU Lesser Public License as 00008 * published by the Free Software Foundation; either version 2.1 of 00009 * the License, or (at your option) any later version. 00010 * 00011 * The ZBar Bar Code Reader is distributed in the hope that it will be 00012 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty 00013 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU Lesser Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser Public License 00017 * along with the ZBar Bar Code Reader; if not, write to the Free 00018 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, 00019 * Boston, MA 02110-1301 USA 00020 * 00021 * http://sourceforge.net/projects/zbar 00022 *------------------------------------------------------------------------*/ 00023 #ifndef _CODE128_H_ 00024 #define _CODE128_H_ 00025 00026 /* Code 128 specific decode state */ 00027 typedef struct code128_decoder_s { 00028 unsigned direction : 1; /* scan direction: 0=fwd/space, 1=rev/bar */ 00029 unsigned element : 3; /* element offset 0-5 */ 00030 int character : 12; /* character position in symbol */ 00031 unsigned s6; /* character width */ 00032 00033 unsigned config; 00034 int configs[NUM_CFGS]; /* int valued configurations */ 00035 } code128_decoder_t; 00036 00037 /* reset Code 128 specific state */ 00038 static inline void code128_reset (code128_decoder_t *dcode128) 00039 { 00040 dcode128->direction = 0; 00041 dcode128->element = 0; 00042 dcode128->character = -1; 00043 dcode128->s6 = 0; 00044 } 00045 00046 /* decode Code 128 symbols */ 00047 zbar_symbol_type_t _zbar_decode_code128(zbar_decoder_t *dcode); 00048 00049 #endif 00050
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