#define test_mask_width 10
#define test_mask_height 16
static unsigned char test_mask_bits[] = {
   0x00, 0x00, 0x03, 0x03, 0x86, 0x01, 0x8e, 0x01, 0xce, 0x01, 0xff, 0x01,
   0xff, 0x01, 0xff, 0x03, 0xff, 0x03, 0xff, 0x03, 0xff, 0x03, 0xff, 0x03,
   0xff, 0x03, 0xff, 0x01, 0xfe, 0x01, 0xfe, 0x00};
