int main (int argc, char *argv[] )
{
assert(argc<=2);
FILE *input;
if (argc == 2) {
input = fopen( argv[1], "rb");
if (!input) {
perror(argv[1]);
exit(1);
}
} else {
input = stdin;
}
Bit2_T bitmap = pbmread(input);
assert(bitmap);
if (input != stdin) {
fclose(input);
}
int w_pixels = Bit2_width(bitmap);
int h_pixels = Bit2_height(bitmap);
// call unblack on every edge pixel
for (int i = 0; i < w_pixels; i++) { // top + bottom edge, +4 corners
unblack(bitmap, i, 0);
unblack(bitmap, i, h_pixels-1);
}
for (int j = 0; j < h_pixels; j++) { // left + right edge, no corners
unblack(bitmap, 0, j);
unblack(bitmap, w_pixels-1, j);
}
pbmwrite(bitmap);
assert(bitmap);
Bit2_free(&bitmap);
return 0;
}
int
main(int argc, char *argv[])
{
(void)argc;
(void)argv;
Bit2_T test_array;
bool OK = true;
int x;
test_array = Bit2_new(DIM1, DIM2);
OK &= (Bit2_width(test_array) == DIM1);
OK &= (Bit2_height(test_array) == DIM2);
// Bit2_put(test_array, 0, 0, 1);
// printf("(0, 0) = %d\n", Bit2_get(test_array, 0, 0));
// printf("(0, 1) = %d\n", Bit2_get(test_array, 1, 0));
/* Note: we are only setting a value on the corner of the array */
Bit2_put(test_array, DIM1-1, DIM2-1, MARKER);
OK &= (Bit2_get(test_array, DIM1-1, DIM2-1) == MARKER);
x = Bit2_put(test_array, DIM1-1, DIM2-1, 0);
OK &= (x == MARKER); /* hint: put returns previous value */
Bit2_put(test_array, DIM1-1, DIM2-1, MARKER); /* for map test */
printf("Trying column major\n");
Bit2_map_col_major(test_array, check_and_print, &OK);
printf("Trying row major\n");
Bit2_map_row_major(test_array, check_and_print, &OK);
Bit2_free(&test_array);
printf("The array is %sOK!\n", (OK ? "" : "NOT "));
}
