abstract fun draw(canvas: Canvas!, drawRegion: Rect!, relativeScale: Float): Unit
abstract fun draw(canvas: Canvas!, drawRegion: Rect!, relativeScale: Float, paint: Paint!): Unit
abstract fun draw(canvas: Canvas!, drawRegion: Rect!, chunkRect: RectF!, relativeScale: Float): Unit
abstract fun draw(canvas: Canvas!, drawRegion: Rect!, chunkRect: RectF!, relativeScale: Float, paint: Paint!): Unit