#define ur_angle_mask_width 16
#define ur_angle_mask_height 16
static short ur_angle_mask_bits[] = {
   0xfff0, 0xfff0, 0xfff0, 0xfff0,
   0xf000, 0xf000, 0xf000, 0xf000,
   0xf000, 0xf000, 0xf000, 0xf000,
   0x0000, 0x0000, 0x0000, 0x0000};