def __call__(self, *frames, **kwargs): channel = kwargs.get('channel', lib.DefaultChannels) c_channel = ffi.cast('ChannelType', channel) steps = ffi.new("sanpera_evaluate_step[]", self.compiled_steps) c_frames = ffi.new("Image *[]", [f._frame for f in frames] + [ffi.NULL]) with magick_try() as exc: new_frame = ffi.gc( lib.sanpera_evaluate_filter(c_frames, steps, c_channel, exc.ptr), lib.DestroyImageList) return Image(new_frame)
def __call__(self, *frames, **kwargs): channel = kwargs.get('channel', lib.DefaultChannels) c_channel = ffi.cast('ChannelType', channel) steps = ffi.new("sanpera_evaluate_step[]", self.compiled_steps) c_frames = ffi.new("Image *[]", [f._frame for f in frames] + [ffi.NULL]) with magick_try() as exc: # TODO can this raise an exception /but also/ return a new value? # is that a thing i should be handling better new_frame = lib.sanpera_evaluate_filter( c_frames, steps, c_channel, exc.ptr) return Image(new_frame)