pure sdk for main

2025-08-27 09:51:58 +01:00
parent f0d033f1c9
commit 0571416e7c
3283 changed files with 1577720 additions and 1 deletions
@@ -0,0 +1,80 @@
+/*------------------------------------------------------------------------
+ *  Copyright 2010 (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 _DATABAR_H_
+#define _DATABAR_H_
+
+#define DATABAR_MAX_SEGMENTS 32
+
+/* active DataBar (partial) segment entry */
+typedef struct databar_segment_s {
+    signed finder : 5;          /* finder pattern */
+    unsigned exp : 1;           /* DataBar expanded finder */
+    unsigned color : 1;         /* finder coloring */
+    unsigned side : 1;          /* data character side of finder */
+
+    unsigned partial : 1;       /* unpaired partial segment */
+    unsigned count : 7;         /* times encountered */
+    unsigned epoch : 8;         /* age, in characters scanned */
+    unsigned check : 8;         /* bar checksum */
+    signed short data;          /* decoded character data */
+    unsigned short width;       /* measured width of finder (14 modules) */
+} databar_segment_t;
+
+/* DataBar specific decode state */
+typedef struct databar_decoder_s {
+    unsigned config;            /* decoder configuration flags */
+    unsigned config_exp;
+
+    unsigned csegs : 8;         /* allocated segments */
+    unsigned epoch : 8;         /* current scan */
+
+    databar_segment_t *segs;    /* active segment list */
+    signed char chars[16];      /* outstanding character indices */
+} databar_decoder_t;
+
+/* reset DataBar segment decode state */
+static inline void databar_new_scan (databar_decoder_t *db)
+{
+    int i;
+    for(i = 0; i < 16; i++)
+        if(db->chars[i] >= 0) {
+            databar_segment_t *seg = db->segs + db->chars[i];
+            if(seg->partial)
+                seg->finder = -1;
+            db->chars[i] = -1;
+        }
+}
+
+/* reset DataBar accumulated segments */
+static inline void databar_reset (databar_decoder_t *db)
+{
+    int i, n = db->csegs;
+    databar_new_scan(db);
+    for(i = 0; i < n; i++)
+        db->segs[i].finder = -1;
+}
+
+/* decode DataBar symbols */
+zbar_symbol_type_t _zbar_decode_databar(zbar_decoder_t *dcode);
+
+#endif