type floydSteinberg struct{}

func (floydSteinberg) Draw(dst Image, r image.Rectangle, src image.Image, sp image.Point) {
	clip(dst, &r, src, &sp, nil, nil)
	if r.Empty() {
		return
	}
	drawPaletted(dst, r, src, sp, true)
}

// clip clips r against each image's bounds (after translating into the
// destination image's coordinate space) and shifts the points sp and mp by
// the same amount as the change in r.Min.

	}
}

// embeddedPaletted is an Image that behaves like an *image.Paletted but whose
// type is not *image.Paletted.
type embeddedPaletted struct {
	*image.Paletted
}

// TestPaletted tests that the drawPaletted function behaves the same
// regardless of whether dst is an *image.Paletted.
func TestPaletted(t *testing.T) {
	f, err := os.Open("../testdata/video-001.png")
	if err != nil {
		t.Fatalf("open: %v", err)
	}