codetest.c

/*
 * Copyright 2005 Andrew Rice
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * This program 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
 * General Public License for more details.
 *  
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * Email: acr31@cam.ac.uk
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "options.h"
#include "image.h"
#include "recognise.h"
#include "codegen_util.h"

int main(int argc,char** argv) {

  if (argc != 2) {
    printf("%s [code as hex]\n",argv[0]);
    exit(-1);
  }

  unsigned char code[PAYLOAD_SIZE_BYTES] = {0};
  unsigned char decoded[PAYLOAD_SIZE_BYTES] = {0};
  unsigned char samplebuffer[EDGE_CELLS*EDGE_CELLS] = {0};
  unsigned char image[IMAGE_BYTES_PER_LINE*IMAGE_WIDTH];
  int i;

  int read_order[EDGE_CELLS*EDGE_CELLS];

  memset(image,255,IMAGE_BYTES_PER_LINE*IMAGE_WIDTH);
  populate_read_order(read_order);

  parse_code(argv[1],code);
  encode(code,samplebuffer);

  draw(image,samplebuffer,read_order);
  printf("Encoded:\t");
  for(i=0;i<PAYLOAD_SIZE_BYTES;++i) {
     printf("%.2X ",code[i]);
  }
  printf("\n");

  /* Save encoded tag: */
  printf("Saving encoded image into encoded-tag.pnm...");
  save_image(image, "encoded-tag.pnm", 0);
  printf("  [DONE]\n");

  if (process_image(image,decoded,read_order)) {
    printf("Decoded:\t");
    for(i=0;i<PAYLOAD_SIZE_BYTES;++i) {
      printf("%.2X ",decoded[i]);
    }
    printf("\n");
    
    for(i=0;i<PAYLOAD_SIZE_BYTES;++i) {
      if (code[i] != decoded[i]) {
	printf("Payload mismatch\n");
	return -1;
      }
    }
  }
  else {
    printf("Failed to decode image\n");
    return -1;
  }

  return 1;
}