106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/*------------------------------------------------------------------------
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* Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
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*
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* This file is part of the ZBar Bar Code Reader.
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*
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* The ZBar Bar Code Reader is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* The ZBar Bar Code Reader is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser Public License for more details.
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*
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* You should have received a copy of the GNU Lesser Public License
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* along with the ZBar Bar Code Reader; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*
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* http://sourceforge.net/projects/zbar
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*------------------------------------------------------------------------*/
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#ifndef _SYMBOL_H_
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#define _SYMBOL_H_
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#include <stdlib.h>
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#include <zbar.h>
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#include "refcnt.h"
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#define NUM_SYMS 20
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typedef struct point_s {
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int x, y;
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} point_t;
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struct zbar_symbol_set_s {
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refcnt_t refcnt;
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int nsyms; /* number of filtered symbols */
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zbar_symbol_t *head; /* first of decoded symbol results */
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zbar_symbol_t *tail; /* last of unfiltered symbol results */
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};
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struct zbar_symbol_s {
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zbar_symbol_type_t type; /* symbol type */
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unsigned int configs; /* symbology boolean config bitmask */
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unsigned int modifiers; /* symbology modifier bitmask */
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unsigned int data_alloc; /* allocation size of data */
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unsigned int datalen; /* length of binary symbol data */
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char *data; /* symbol data */
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unsigned pts_alloc; /* allocation size of pts */
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unsigned npts; /* number of points in location polygon */
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point_t *pts; /* list of points in location polygon */
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zbar_orientation_t orient; /* coarse orientation */
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refcnt_t refcnt; /* reference count */
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zbar_symbol_t *next; /* linked list of results (or siblings) */
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zbar_symbol_set_t *syms; /* components of composite result */
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unsigned long time; /* relative symbol capture time */
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int cache_count; /* cache state */
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int quality; /* relative symbol reliability metric */
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};
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extern int _zbar_get_symbol_hash(zbar_symbol_type_t);
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extern void _zbar_symbol_free(zbar_symbol_t*);
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extern zbar_symbol_set_t *_zbar_symbol_set_create(void);
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extern void _zbar_symbol_set_free(zbar_symbol_set_t*);
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static inline void sym_add_point (zbar_symbol_t *sym,
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int x,
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int y)
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{
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int i = sym->npts;
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//int *pt;
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if(++sym->npts >= sym->pts_alloc){
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//printf("b:%x %x\r\n",sym->pts,pt[0]);
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sym->pts = realloc(sym->pts, ++sym->pts_alloc * sizeof(point_t));
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//printf("a:%x %x %d\r\n",sym->pts,pt[0],sym->pts_alloc);
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}
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//printf("e1:%x %x\r\n",sym->pts,pt[0]);
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sym->pts[i].x = x;
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sym->pts[i].y = y;
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//printf("e2:%x %x\r\n",sym->pts,pt[0]);
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}
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static inline void _zbar_symbol_refcnt (zbar_symbol_t *sym,
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int delta)
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{
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if(!_zbar_refcnt(&sym->refcnt, delta) && delta <= 0)
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_zbar_symbol_free(sym);
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}
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static inline void _zbar_symbol_set_add (zbar_symbol_set_t *syms,
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zbar_symbol_t *sym)
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{
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sym->next = syms->head;
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syms->head = sym;
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syms->nsyms++;
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_zbar_symbol_refcnt(sym, 1);
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}
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#endif
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