1 files changed, 122 insertions, 0 deletions
diff --git a/src/image/zbar.cpp b/src/image/zbar.cpp
new file mode 100644
index 0000000..f11e751
--- /dev/null
+++ b/src/image/zbar.cpp
@@ -0,0 +1,122 @@
+/******************************************************************************
+ *	Copyright (C) 2018	Alejandro Colomar Andrés		      *
+ *	SPDX-License-Identifier:	GPL-2.0-only			      *
+ ******************************************************************************/
+
+
+/******************************************************************************
+ ******* headers **************************************************************
+ ******************************************************************************/
+#include "vision-artificial/image/zbar.hpp"
+
+#include <climits>
+#include <cstddef>
+#include <cstdio>
+
+#include <opencv2/opencv.hpp>
+#include <zbar.h>
+
+#include "vision-artificial/image/iface.hpp"
+
+
+/******************************************************************************
+ ******* macros ***************************************************************
+ ******************************************************************************/
+
+
+/******************************************************************************
+ ******* enums ****************************************************************
+ ******************************************************************************/
+
+
+/******************************************************************************
+ ******* structs / unions *****************************************************
+ ******************************************************************************/
+
+
+/******************************************************************************
+ ******* variables ************************************************************
+ ******************************************************************************/
+
+
+/******************************************************************************
+ ******* static functions (prototypes) ****************************************
+ ******************************************************************************/
+static	void	img_zb_decode	(class cv::Mat  *imgptr, const void *data);
+
+
+/******************************************************************************
+ ******* global functions *****************************************************
+ ******************************************************************************/
+void	img_zb_act	(class cv::Mat  *imgptr, int action, const void *data)
+{
+
+	switch (action) {
+	case IMG_ZB_ACT_DECODE:
+		img_zb_decode(imgptr, data);
+		break;
+	}
+}
+
+
+/******************************************************************************
+ ******* static functions (definitions) ***************************************
+ ******************************************************************************/
+static	void	img_zb_decode	(class cv::Mat  *imgptr, const void *data)
+{
+	const struct zbar::zbar_symbol_s	*symbol;
+	struct zbar::zbar_image_scanner_s	*scanner;
+	struct zbar::zbar_image_s		*image_zb;
+	enum zbar::zbar_symbol_type_e		code_type;
+	void					*imgdata;
+	ptrdiff_t				rows;
+	ptrdiff_t				cols;
+
+	imgdata	= (void *)imgptr->data;
+	rows	= imgptr->rows;
+	cols	= imgptr->cols;
+
+	/* Type of code to scan */
+	code_type = (enum zbar::zbar_symbol_type_e)
+			((const struct Img_Iface_Data_Decode *)data)->code_type;
+
+	/* create & configure a reader */
+	scanner = zbar::zbar_image_scanner_create();
+	zbar::zbar_image_scanner_set_config(scanner, code_type,
+						zbar::ZBAR_CFG_ENABLE, 1);
+
+	/* wrap image data */
+	image_zb = zbar::zbar_image_create();
+	zbar::zbar_image_set_format(image_zb, *(int*)"GREY");
+	zbar::zbar_image_set_size(image_zb, cols, rows);
+	zbar::zbar_image_set_data(image_zb, imgdata, cols * rows, NULL);
+
+	/* scan the image for barcodes */
+	zb_codes.n = zbar::zbar_scan_image(scanner, image_zb);
+	if (!zb_codes.n)
+		goto not_found;
+
+	/* extract results */
+	symbol = zbar::zbar_image_first_symbol(image_zb);
+	for (ptrdiff_t i = 0; i < ZB_CODES_MAX && symbol; i++) {
+		zb_codes.arr[i].type = zbar::zbar_symbol_get_type(symbol);
+		code_type = (enum zbar::zbar_symbol_type_e)zb_codes.arr[i].type;
+		snprintf(zb_codes.arr[i].sym_name, 80, "%s",
+					zbar::zbar_get_symbol_name(code_type));
+		snprintf(zb_codes.arr[i].data, ZBAR_LEN_MAX, "%s",
+					zbar::zbar_symbol_get_data(symbol));
+
+		/* Load next symbol */
+		symbol = zbar::zbar_symbol_next(symbol);
+	}
+
+not_found:
+	/* clean up */
+	zbar::zbar_image_destroy(image_zb);
+	zbar::zbar_image_scanner_destroy(scanner);
+}
+
+
+/******************************************************************************
+ ******* end of file **********************************************************
+ ******************************************************************************/