1 files changed, 99 insertions, 0 deletions
diff --git a/zbar/decoder/ean.h b/zbar/decoder/ean.h
new file mode 100644
index 0000000..351245b
--- /dev/null
+++ b/zbar/decoder/ean.h
@@ -0,0 +1,99 @@
+/*------------------------------------------------------------------------
+ *  Copyright 2007-2010 (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 _EAN_H_
+#define _EAN_H_
+
+/* state of each parallel decode attempt */
+typedef struct ean_pass_s {
+    signed char state;	 /* module position of w[idx] in symbol */
+#define STATE_REV   0x80 /*   scan direction reversed */
+#define STATE_ADDON 0x40 /*   scanning add-on */
+#define STATE_IDX   0x3f /*   element offset into symbol */
+    unsigned width;	  /* width of last character */
+    unsigned char raw[7]; /* decode in process */
+} ean_pass_t;
+
+/* EAN/UPC specific decode state */
+typedef struct ean_decoder_s {
+    ean_pass_t pass[4];	     /* state of each parallel decode attempt */
+    zbar_symbol_type_t left; /* current holding buffer contents */
+    zbar_symbol_type_t right;
+    int direction;	 /* scan direction */
+    unsigned s4, width;	 /* character width */
+    signed char buf[18]; /* holding buffer */
+
+    signed char enable;
+    unsigned ean13_config;
+    unsigned ean8_config;
+    unsigned upca_config;
+    unsigned upce_config;
+    unsigned isbn10_config;
+    unsigned isbn13_config;
+    unsigned ean5_config;
+    unsigned ean2_config;
+} ean_decoder_t;
+
+/* reset EAN/UPC pass specific state */
+static inline void ean_new_scan(ean_decoder_t *ean)
+{
+    ean->pass[0].state = ean->pass[1].state = -1;
+    ean->pass[2].state = ean->pass[3].state = -1;
+    ean->s4				    = 0;
+}
+
+/* reset all EAN/UPC state */
+static inline void ean_reset(ean_decoder_t *ean)
+{
+    ean_new_scan(ean);
+    ean->left = ean->right = ZBAR_NONE;
+}
+
+static inline unsigned ean_get_config(ean_decoder_t *ean,
+				      zbar_symbol_type_t sym)
+{
+    switch (sym) {
+    case ZBAR_EAN2:
+	return (ean->ean2_config);
+    case ZBAR_EAN5:
+	return (ean->ean5_config);
+    case ZBAR_EAN8:
+	return (ean->ean8_config);
+    case ZBAR_UPCE:
+	return (ean->upce_config);
+    case ZBAR_ISBN10:
+	return (ean->isbn10_config);
+    case ZBAR_UPCA:
+	return (ean->upca_config);
+    case ZBAR_EAN13:
+	return (ean->ean13_config);
+    case ZBAR_ISBN13:
+	return (ean->isbn13_config);
+    default:
+	return (0);
+    }
+}
+
+/* decode EAN/UPC symbols */
+zbar_symbol_type_t _zbar_decode_ean(zbar_decoder_t *dcode);
+
+#endif