#define test_width 8
#define test_height 15
static unsigned char test_bits[] = {
   0x00, 0x00, 0x01, 0x40, 0x40, 0x40, 0x41, 0x40, 0x40, 0x21, 0x00, 0x01,
   0x10, 0x00, 0x00};
