[AS2]Flashで外部から読み込んだ画像データにスムージングを適用する

import flash.display.BitmapData;
 
this.createEmptyMovieClip("containerOriginal", this.getNextHighestDepth());
this.createEmptyMovieClip("containerSmoothing", this.getNextHighestDepth());
 
var listenerObj:Object = new Object();
listenerObj.onLoadInit = function(){
	bitmapSmoothing();
}
var mcl:MovieClipLoader = new MovieClipLoader();
mcl.addListener(listenerObj);
mcl.loadClip("photo.jpg", this.containerOriginal);
 
function bitmapSmoothing() {
	var smoothImage:BitmapData = new BitmapData(this.containerOriginal._width, this.containerOriginal._height, true, 0x000000);
	smoothImage.draw(this.containerOriginal);
	this.containerSmoothing.attachBitmap(smoothImage, 0, "auto", true);
	this.containerOriginal.removeMovieClip();
}