/*      The IMAGE data structure        */
struct image {
                struct header *info;            /* Pointer to header */
                unsigned char **data;           /* Pixel values */
};
typedef struct image * IMAGE;



//
// Allocates memory for a new image of the specified dimensions.
//
struct image  *image_init (int nc, int nr)
{
        IMAGE x;                /* New image */
        //unsigned char *ptr;             /* new pixel array */
        register unsigned int i;

        if (nr < 0 || nc < 0) {
                printf ("Error: Bad image size (%d,%d)\n", nc, nr);
                exit(-1);
        }

        //      Allocate the image structure
        x = (struct image  *) malloc( sizeof (struct image) );
        if (!x)
        {
                printf ("Out of storage in NEWIMAGE.\n");
                exit(-1);
        }

        //      Allocate and initialize the header
        x->info = (struct header *)malloc( sizeof(struct header) );
        if (!(x->info))
        {
                printf ("Out of storage in NEWIMAGE.\n");
                exit(-1);
        }
        x->info->nr = nr;
        x->info->nc = nc;
        x->info->oi = x->info->oj = 0;

        //      Allocate the array of rows

        x->data = (unsigned char **)malloc(sizeof(unsigned char *)*nr);

        // Pointers to rows
        if (!(x->data)) {
                printf ("Out of storage in NEWIMAGE.\n");
                exit(-1);
        }

        //      Allocated the actual rows
        for (i=0; i<nr; i++)
        {
          x->data[i] = (unsigned char *)malloc(nc*sizeof(unsigned char)+1);             // Hack for CMVision's encodeRuns() to store run terminator
          if (x->data[i]==0)
          {
                printf ("Out of storage. Newimage - row %d\n", i);
                exit(1);
          }
        }
        return x;
}