kc3-lang/libqrencode/tests/test_mmask.c

Branch : - branch - master - tag -

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  Commit

• Author : Kentaro Fukuchi
  Date : 2011-11-24 02:21:14
  Hash : ac625373
  Message : Micro QR Code support is marked as 'experimental'. More tests and document updates.

• tests/test_mmask.c

• #include <stdio.h>
  #include <string.h>
  #include "common.h"
  #include "../mmask.h"
  #include "../mqrspec.h"
  
  char dot[2] = {'_', '#'};
  static char *maskPatterns[4] = {
  	/* i mod 2 = 0 */
  	"######"
  	"______"
  	"######"
  	"______"
  	"######"
  	"______",
  	/* ((i div 2) + (j div 3)) mod 2 = 0 */
  	"###___"
  	"###___"
  	"___###"
  	"___###"
  	"###___"
  	"###___",
  	/* ((ij) mod 2 + (ij) mod 3) mod 2 = 0 */
  	"######"
  	"###___"
  	"##_##_"
  	"#_#_#_"
  	"#_##_#"
  	"#___##",
  	/* ((ij) mod 3 + (i+j) mod 2) mod 2 = 0 */
  	"#_#_#_"
  	"___###"
  	"#___##"
  	"_#_#_#"
  	"###___"
  	"_###__"
  };
  
  void print_mask(int mask)
  {
  	const int w = 6;
  	unsigned char frame[w * w], *masked, *p;
  	int x, y;
  
  	memset(frame, 0, w * w);
  	masked = MMask_makeMaskedFrame(w, frame, mask);
  	p = masked;
  	for(y=0; y<w; y++) {
  		for(x=0; x<w; x++) {
  			putchar(dot[*p&1]);
  			p++;
  		}
  		printf("\n");
  	}
  	printf("\n");
  
  	free(masked);
  }
  
  void print_masks(void)
  {
  	int i;
  
  	for(i=0; i<4; i++) {
  		print_mask(i);
  	}
  }
  
  int test_mask(int mask)
  {
  	const int w = 6;
  	unsigned char frame[w * w], *masked, *p;
  	char *q;
  	int x, y;
  	int err = 0;
  
  	memset(frame, 0, w * w);
  	masked = MMask_makeMaskedFrame(w, frame, mask);
  	p = masked;
  	q = maskPatterns[mask];
  	for(y=0; y<w; y++) {
  		for(x=0; x<w; x++) {
  			if(dot[*p&1] != *q) {
  				err++;
  			}
  			p++;
  			q++;
  		}
  	}
  
  	free(masked);
  	return err;
  }
  
  void test_masks(void)
  {
  	int i;
  
  	testStart("Mask pattern checks");
  	for(i=0; i<4; i++) {
  		assert_zero(test_mask(i), "Mask pattern %d incorrect.\n", i);
  	}
  	testFinish();
  }
  
  void test_maskEvaluation(void)
  {
  	static const int w = 11;
  	unsigned char pattern[w*w];
  	int i, score;
  
  	memset(pattern, 0, w*w);
  
  	testStart("Test mask evaluation");
  	score = MMask_evaluateSymbol(w, pattern);
  	assert_equal(score, 0, "Mask score caluculation is incorrect. (score=%d (%d expected)\n", score, 0);
  
  	for(i=0; i<w; i++) {
  		pattern[(w-1) * w + i] = 1;
  	}
  	score = MMask_evaluateSymbol(w, pattern);
  	assert_equal(score, 16 + w - 1, "Mask score caluculation is incorrect. (score=%d) (%d expected)\n", score, 16 + w - 1);
  
  	for(i=0; i<w; i++) {
  		pattern[(w-1) * w + i] = 0;
  		pattern[i * w + w - 1] = 1;
  	}
  	score = MMask_evaluateSymbol(w, pattern);
  	assert_equal(score, 16 + w - 1, "Mask score caluculation is incorrect. (score=%d) (%d expected)\n", score, 16 + w - 1);
  
  	for(i=0; i<w; i++) {
  		pattern[(w-1) * w + i] = 1;
  		pattern[i * w + w - 1] = 1;
  	}
  	score = MMask_evaluateSymbol(w, pattern);
  	assert_equal(score, 16 * (w - 1) + w - 1, "Mask score caluculation is incorrect. (score=%d) (%d expected)\n", score, 16 * (w - 1) + w - 1);
  
  	testFinish();
  }
  
  int main(void)
  {
  	//print_masks();
  	test_masks();
  	test_maskEvaluation();
  
  	report();
  
  	MQRspec_clearCache();
  
  	return 0;
  }