#define poly_width 16
#define poly_height 16
static unsigned char poly_bits[] = {
   0x20, 0x00, 0xd0, 0x00, 0x08, 0x03, 0x08, 0x0c, 0x04, 0x30, 0x02, 0x20,
   0xff, 0x21, 0x80, 0x20, 0x40, 0x10, 0x20, 0x10, 0x10, 0x10, 0x08, 0x0c,
   0x04, 0x03, 0xf2, 0x00, 0x0f, 0x00, 0x00, 0x00};