diff --git a/imageimpl.go b/imageimpl.go
index 6aeba9d65..60ada258b 100644
--- a/imageimpl.go
+++ b/imageimpl.go
@@ -30,7 +30,6 @@ import (
 type imageImpl struct {
 	disposed   bool
 	restorable *restorable.Image
-	screen     bool
 	m          sync.Mutex
 }
 
@@ -82,7 +81,6 @@ func newScreenImageImpl(width, height int) (*imageImpl, error) {
 	}
 	i := &imageImpl{
 		restorable: img,
-		screen:     true,
 	}
 	runtime.SetFinalizer(i, (*imageImpl).Dispose)
 	return i, nil
@@ -215,13 +213,7 @@ func (i *imageImpl) restore(context *opengl.Context) error {
 	if i.disposed {
 		return nil
 	}
-	if i.screen {
-		if err := i.restorable.RestoreAsScreen(); err != nil {
-			return err
-		}
-		return nil
-	}
-	if err := i.restorable.RestoreImage(context); err != nil {
+	if err := i.restorable.Restore(context); err != nil {
 		return err
 	}
 	return nil
diff --git a/internal/restorable/image.go b/internal/restorable/image.go
index e0620e665..9927c8875 100644
--- a/internal/restorable/image.go
+++ b/internal/restorable/image.go
@@ -45,6 +45,7 @@ type Image struct {
 	stale            bool
 
 	volatile bool
+	screen   bool
 }
 
 func NewImage(width, height int, filter opengl.Filter, volatile bool) (*Image, error) {
@@ -87,6 +88,7 @@ func NewScreenFramebufferImage(width, height int) (*Image, error) {
 		width:    width,
 		height:   height,
 		volatile: true,
+		screen:   true,
 	}, nil
 }
 
@@ -229,7 +231,21 @@ func (p *Image) HasDependency() bool {
 }
 
 // RestoreImage restores *graphics.Image from the pixels using its state.
-func (p *Image) RestoreImage(context *opengl.Context) error {
+func (p *Image) Restore(context *opengl.Context) error {
+	if p.screen {
+		// The screen image should also be recreated because framebuffer might
+		// be changed.
+		var err error
+		p.image, err = graphics.NewScreenFramebufferImage(p.width, p.height)
+		if err != nil {
+			return err
+		}
+		p.basePixels = nil
+		p.baseColor = color.RGBA{}
+		p.drawImageHistory = nil
+		p.stale = false
+		return nil
+	}
 	if p.volatile {
 		var err error
 		p.image, err = graphics.NewImage(p.width, p.height, p.filter)
@@ -284,18 +300,6 @@ func (p *Image) RestoreImage(context *opengl.Context) error {
 	return nil
 }
 
-func (p *Image) RestoreAsScreen() error {
-	// The screen image should also be recreated because framebuffer might
-	// be changed.
-	var err error
-	p.image, err = graphics.NewScreenFramebufferImage(p.width, p.height)
-	if err != nil {
-		return err
-	}
-	// TODO: Reset other values?
-	return nil
-}
-
 func (p *Image) Dispose() error {
 	if err := p.image.Dispose(); err != nil {
 		return err