Function allegro_sys::bitmap_draw::al_draw_rotated_bitmap

pub unsafe extern fn al_draw_rotated_bitmap(bitmap: *mut ALLEGRO_BITMAP,
                                            cx: c_float,
                                            cy: c_float,
                                            dx: c_float,
                                            dy: c_float,
                                            angle: c_float,
                                            flags: c_int)