Ryo Hagimoto / zbar_010

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

LICENSE

The ZBar Bar Code Reader is Copyright (C) 2007-2009 Jeff Brown <spadix@users.sourceforge.net> The QR Code reader is Copyright (C) 1999-2009 Timothy B. Terriberry <tterribe@xiph.org>

You can redistribute this library and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

ISAAC is based on the public domain implementation by Robert J. Jenkins Jr., and is itself public domain.

Portions of the bit stream reader are copyright (C) The Xiph.Org Foundation 1994-2008, and are licensed under a BSD-style license.

The Reed-Solomon decoder is derived from an implementation (C) 1991-1995 Henry Minsky (hqm@ua.com, hqm@ai.mit.edu), and is licensed under the LGPL with permission.

zbar/symbol.h@1:500d42699c34, 2016-04-19 (annotated)

Committer:
RyoheiHagimoto
Date:
Tue Apr 19 02:19:39 2016 +0000
Revision:
1:500d42699c34
Parent:
0:56c5742b9e2b 
Add copying.txt and license.txt

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RyoheiHagimoto 0:56c5742b9e2b 1 /*------------------------------------------------------------------------
RyoheiHagimoto 0:56c5742b9e2b 2 * Copyright 2007-2009 (c) Jeff Brown <spadix@users.sourceforge.net>
RyoheiHagimoto 0:56c5742b9e2b 3 *
RyoheiHagimoto 0:56c5742b9e2b 4 * This file is part of the ZBar Bar Code Reader.
RyoheiHagimoto 0:56c5742b9e2b 5 *
RyoheiHagimoto 0:56c5742b9e2b 6 * The ZBar Bar Code Reader is free software; you can redistribute it
RyoheiHagimoto 0:56c5742b9e2b 7 * and/or modify it under the terms of the GNU Lesser Public License as
RyoheiHagimoto 0:56c5742b9e2b 8 * published by the Free Software Foundation; either version 2.1 of
RyoheiHagimoto 0:56c5742b9e2b 9 * the License, or (at your option) any later version.
RyoheiHagimoto 0:56c5742b9e2b 10 *
RyoheiHagimoto 0:56c5742b9e2b 11 * The ZBar Bar Code Reader is distributed in the hope that it will be
RyoheiHagimoto 0:56c5742b9e2b 12 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
RyoheiHagimoto 0:56c5742b9e2b 13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
RyoheiHagimoto 0:56c5742b9e2b 14 * GNU Lesser Public License for more details.
RyoheiHagimoto 0:56c5742b9e2b 15 *
RyoheiHagimoto 0:56c5742b9e2b 16 * You should have received a copy of the GNU Lesser Public License
RyoheiHagimoto 0:56c5742b9e2b 17 * along with the ZBar Bar Code Reader; if not, write to the Free
RyoheiHagimoto 0:56c5742b9e2b 18 * Software Foundation, Inc., 51 Franklin St, Fifth Floor,
RyoheiHagimoto 0:56c5742b9e2b 19 * Boston, MA 02110-1301 USA
RyoheiHagimoto 0:56c5742b9e2b 20 *
RyoheiHagimoto 0:56c5742b9e2b 21 * http://sourceforge.net/projects/zbar
RyoheiHagimoto 0:56c5742b9e2b 22 *------------------------------------------------------------------------*/
RyoheiHagimoto 0:56c5742b9e2b 23 #ifndef _SYMBOL_H_
RyoheiHagimoto 0:56c5742b9e2b 24 #define _SYMBOL_H_
RyoheiHagimoto 0:56c5742b9e2b 25
RyoheiHagimoto 0:56c5742b9e2b 26 #include <stdlib.h>
RyoheiHagimoto 0:56c5742b9e2b 27 #include <zbar.h>
RyoheiHagimoto 0:56c5742b9e2b 28 #include "refcnt.h"
RyoheiHagimoto 0:56c5742b9e2b 29
RyoheiHagimoto 0:56c5742b9e2b 30 typedef struct point_s {
RyoheiHagimoto 0:56c5742b9e2b 31 int x, y;
RyoheiHagimoto 0:56c5742b9e2b 32 } point_t;
RyoheiHagimoto 0:56c5742b9e2b 33
RyoheiHagimoto 0:56c5742b9e2b 34 struct zbar_symbol_set_s {
RyoheiHagimoto 0:56c5742b9e2b 35 refcnt_t refcnt;
RyoheiHagimoto 0:56c5742b9e2b 36 int nsyms; /* number of filtered symbols */
RyoheiHagimoto 0:56c5742b9e2b 37 zbar_symbol_t *head; /* first of decoded symbol results */
RyoheiHagimoto 0:56c5742b9e2b 38 zbar_symbol_t *tail; /* last of unfiltered symbol results */
RyoheiHagimoto 0:56c5742b9e2b 39 };
RyoheiHagimoto 0:56c5742b9e2b 40
RyoheiHagimoto 0:56c5742b9e2b 41 struct zbar_symbol_s {
RyoheiHagimoto 0:56c5742b9e2b 42 zbar_symbol_type_t type; /* symbol type */
RyoheiHagimoto 0:56c5742b9e2b 43 unsigned int data_alloc; /* allocation size of data */
RyoheiHagimoto 0:56c5742b9e2b 44 unsigned int datalen; /* length of binary symbol data */
RyoheiHagimoto 0:56c5742b9e2b 45 char *data; /* symbol data */
RyoheiHagimoto 0:56c5742b9e2b 46
RyoheiHagimoto 0:56c5742b9e2b 47 unsigned pts_alloc; /* allocation size of pts */
RyoheiHagimoto 0:56c5742b9e2b 48 unsigned npts; /* number of points in location polygon */
RyoheiHagimoto 0:56c5742b9e2b 49 point_t *pts; /* list of points in location polygon */
RyoheiHagimoto 0:56c5742b9e2b 50
RyoheiHagimoto 0:56c5742b9e2b 51 refcnt_t refcnt; /* reference count */
RyoheiHagimoto 0:56c5742b9e2b 52 zbar_symbol_t *next; /* linked list of results (or siblings) */
RyoheiHagimoto 0:56c5742b9e2b 53 zbar_symbol_set_t *syms; /* components of composite result */
RyoheiHagimoto 0:56c5742b9e2b 54 unsigned long time; /* relative symbol capture time */
RyoheiHagimoto 0:56c5742b9e2b 55 int cache_count; /* cache state */
RyoheiHagimoto 0:56c5742b9e2b 56 int quality; /* relative symbol reliability metric */
RyoheiHagimoto 0:56c5742b9e2b 57 };
RyoheiHagimoto 0:56c5742b9e2b 58
RyoheiHagimoto 0:56c5742b9e2b 59 extern void _zbar_symbol_free(zbar_symbol_t*);
RyoheiHagimoto 0:56c5742b9e2b 60
RyoheiHagimoto 0:56c5742b9e2b 61 extern zbar_symbol_set_t *_zbar_symbol_set_create(void);
RyoheiHagimoto 0:56c5742b9e2b 62 extern void _zbar_symbol_set_free(zbar_symbol_set_t*);
RyoheiHagimoto 0:56c5742b9e2b 63
RyoheiHagimoto 0:56c5742b9e2b 64 static inline void sym_add_point (zbar_symbol_t *sym,
RyoheiHagimoto 0:56c5742b9e2b 65 int x,
RyoheiHagimoto 0:56c5742b9e2b 66 int y)
RyoheiHagimoto 0:56c5742b9e2b 67 {
RyoheiHagimoto 0:56c5742b9e2b 68 int i = sym->npts;
RyoheiHagimoto 0:56c5742b9e2b 69 if(++sym->npts >= sym->pts_alloc)
RyoheiHagimoto 0:56c5742b9e2b 70 sym->pts = realloc(sym->pts, ++sym->pts_alloc * sizeof(point_t));
RyoheiHagimoto 0:56c5742b9e2b 71 sym->pts[i].x = x;
RyoheiHagimoto 0:56c5742b9e2b 72 sym->pts[i].y = y;
RyoheiHagimoto 0:56c5742b9e2b 73 }
RyoheiHagimoto 0:56c5742b9e2b 74
RyoheiHagimoto 0:56c5742b9e2b 75 static inline void _zbar_symbol_refcnt (zbar_symbol_t *sym,
RyoheiHagimoto 0:56c5742b9e2b 76 int delta)
RyoheiHagimoto 0:56c5742b9e2b 77 {
RyoheiHagimoto 0:56c5742b9e2b 78 if(!_zbar_refcnt(&sym->refcnt, delta) && delta <= 0)
RyoheiHagimoto 0:56c5742b9e2b 79 _zbar_symbol_free(sym);
RyoheiHagimoto 0:56c5742b9e2b 80 }
RyoheiHagimoto 0:56c5742b9e2b 81
RyoheiHagimoto 0:56c5742b9e2b 82 static inline void _zbar_symbol_set_add (zbar_symbol_set_t *syms,
RyoheiHagimoto 0:56c5742b9e2b 83 zbar_symbol_t *sym)
RyoheiHagimoto 0:56c5742b9e2b 84 {
RyoheiHagimoto 0:56c5742b9e2b 85 sym->next = syms->head;
RyoheiHagimoto 0:56c5742b9e2b 86 syms->head = sym;
RyoheiHagimoto 0:56c5742b9e2b 87 syms->nsyms++;
RyoheiHagimoto 0:56c5742b9e2b 88
RyoheiHagimoto 0:56c5742b9e2b 89 _zbar_symbol_refcnt(sym, 1);
RyoheiHagimoto 0:56c5742b9e2b 90 }
RyoheiHagimoto 0:56c5742b9e2b 91
RyoheiHagimoto 0:56c5742b9e2b 92 #endif
RyoheiHagimoto 0:56c5742b9e2b 93