#define theta_mask_width 16
#define theta_mask_height 16
#define theta_mask_x_hot 7
#define theta_mask_y_hot 7
static short theta_mask_bits[] = {
   0x07f0, 0x1ffc, 0x3ffe, 0x3e3e,
   0x780f, 0x780f, 0x7fff, 0x7fff,
   0x7fff, 0x780f, 0x780f, 0x3e3e,
   0x3ffe, 0x1ffc, 0x07f0, 0x0000};