Function allegro_sys::blend::al_get_separate_blender

pub unsafe extern fn al_get_separate_blender(op: *mut c_int,
                                             source: *mut c_int,
                                             dest: *mut c_int,
                                             alpha_op: *mut c_int,
                                             alpha_src: *mut c_int,
                                             alpha_dest: *mut c_int)