INV_PI_360       1009 contrib/gregbook/rpng2-win.c                 hue = (angle + PI) * INV_PI_360 + aoffset;
INV_PI_360       1259 contrib/gregbook/rpng2-x.c                 hue = (angle + PI) * INV_PI_360 + aoffset;
INV_PI_360       2027 contrib/gregbook/rpng2-x.c                 hue = (angle + PI) * INV_PI_360 + aoffset;