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#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include <math.h>
#include <string.h>
#include <unistd.h>
#include "ppm.h"
/* PPM and PGM utilities */
/* David Squire 980924 */
void ppm_handle_error(enum ppm_error the_error) {
switch(the_error) {
case UNKNOWN_TYPE:
fprintf(stderr, "This is not a PPM/PGM file.\n");
break;
case EARLY_EOF:
fprintf(stderr, "Unexpected end of file.\n");
break;
case READ_ERROR:
fprintf(stderr, "Error reading file.\n");
break;
case COL_TOO_LARGE:
fprintf(stderr, "Maximum colour value too large for raw format.\n");
break;
case ONE_PLANE_IN:
fprintf(stderr, "Cannot save a plane of a greyscale image.\n");
break;
case ONE_PLANE_OUT:
fprintf(stderr, "Cannot save a plane as a colour image.\n");
break;
case THREE_PLANES_NEEDED:
fprintf(stderr, "Input image must have three planes.\n");
break;
case ONE_PLANE_NEEDED:
fprintf(stderr, "Input image must have one plane.\n");
break;
case TOO_MANY_BINS:
fprintf(stderr, "Quantisation can result in at most 256 bins.\n");
break;
default:
break;
}
}
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