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/******************************************************************************
* Copyright (C) 2018 Alejandro Colomar Andrés *
******************************************************************************/
/******************************************************************************
******* headers **************************************************************
******************************************************************************/
/* Standard C ----------------------------------------------------------------*/
/* INT_MAX */
#include <climits>
/* snprintf() */
#include <cstdio>
/* Packages ------------------------------------------------------------------*/
/* opencv */
#include <opencv2/opencv.hpp>
/* zbar */
#include <zbar.h>
/* Module --------------------------------------------------------------------*/
/* data & zb_codes */
#include "img_iface.hpp"
#include "img_zbar.hpp"
/******************************************************************************
******* static functions *****************************************************
******************************************************************************/
static void img_zb_decode (class cv::Mat *imgptr, void *data);
/******************************************************************************
******* main *****************************************************************
******************************************************************************/
void img_zb_act (class cv::Mat *imgptr, int action, void *data)
{
switch (action) {
case IMG_ZB_ACT_DECODE:
img_zb_decode(imgptr, data);
break;
}
}
/******************************************************************************
******* static functions *****************************************************
******************************************************************************/
static void img_zb_decode (class cv::Mat *imgptr, void *data)
{
struct zbar::zbar_image_scanner_s *scanner;
struct zbar::zbar_image_s *image_zb;
const struct zbar::zbar_symbol_s *symbol;
/* Type of code to scan */
enum zbar::zbar_symbol_type_e code_type;
code_type = ((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, imgptr->cols, imgptr->rows);
zbar::zbar_image_set_data(image_zb, (void *)(imgptr->data),
(imgptr->cols * imgptr->rows),
NULL);
/* scan the image for barcodes */
int i;
zb_codes.n = zbar::zbar_scan_image(scanner, image_zb);
if (zb_codes.n) {
/* extract results */
symbol = zbar::zbar_image_first_symbol(image_zb);
for (i = 0; i < ZB_CODES_MAX && symbol; i++) {
/* Write results into array */
zb_codes.arr[i].type = zbar::zbar_symbol_get_type(symbol);
snprintf(zb_codes.arr[i].sym_name, 80, "%s",
zbar::zbar_get_symbol_name(
zb_codes.arr[i].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);
}
}
/* clean up */
zbar::zbar_image_destroy(image_zb);
zbar::zbar_image_scanner_destroy(scanner);
}
/******************************************************************************
******* end of file **********************************************************
******************************************************************************/
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