package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Loader; import flash.display.Shader; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import flash.filters.ShaderFilter; import flash.geom.Matrix; import flash.geom.Point; import flash.geom.Rectangle; [SWF(width="465", height="465", frameRate="4")] public class PNGTest extends Sprite { private static const SAMPLE_PNG:String = "iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAACXBIWXMAAAsTAAALEwEAmpwYAAABD0lEQVRYCe2UaxLDIAiE+zp7D9mTdPrmS7spY9Uk2vyDGSJBlkVC3GxCogPRgehAfweu/SnaMhwNdjd9tMH7URBTBCuFYC+W7WLEFwDxzvT2cWEjT9P9YK344MQihoZ3CYX5Pfn/tp4tEyReIPSkq85GSq5CfAH4eCe2FE9Mk5QS+s/gE1cL0eB4QM2G/FII4D7IFXcwPzwMJ/td90bplJZ3EE5b+x0pIP1Ub+SMJ0AGsCa6F3IxkOc6lIv98UE8dXqBcn8Je83kLeC0YMjnHgC+UdTSqdaPAGeIUDnc1jxTrdRQsZLUq/ZyGYXn9LW4HHbwASQJygCmE05SfBSkFnsbH3oyDYkORAeiA8UOvACR6lmd4UhkVQAAAABJRU5ErkJggg=="; private static const HEATBLUR_PBJ:String = "pQEAAACkCABIZWF0Qmx1cqAMbmFtZXNwYWNlAGpwLnl5eC4ybmR5LnBiawCgDHZlbmRvcgAybmR5b2Z5eXgAoAh2ZXJzaW9uAAEAoQECAAAMX091dENvb3JkAKMABHNyYwChAgQBAA9kc3QAMgAAIAAAAAAyAgCAv4AAADICAEAAAAAAHQIAMQAAEAABAgAxAgAQADADAPECALAAAQAAIAMAAAAyAgCAAAAAADICAEAAAAAAHQIAMQAAEAABAgAxAgAQADADAPECALAAAQAAIAMAAAAyAgCAP4AAADICAEAAAAAAHQIAMQAAEAABAgAxAgAQADADAPECALAAAQAAIAMAAAAyAgCAAAAAADICAEA/gAAAHQIAMQAAEAABAgAxAgAQADADAPECALAAAQAAIAMAAAAyAAAQPn4AAAMAACAAAMAAHQEAgAAAgAAyAQAQP4AAAA=="; private var heat1:BitmapData = new BitmapData(465, 465, false); private var heat2:BitmapData = new BitmapData(465, 465, false); private var buffer:BitmapData = new BitmapData(465, 465, false); private var shaderFilter:ShaderFilter; public function PNGTest() { var root:Sprite = new Sprite(); root.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown); root.addChild(new Bitmap(buffer)); addChild(root); addEventListener(Event.ENTER_FRAME, onEnterFrame); var loader:Loader = new Loader(); loader.loadBytes(new Base64(SAMPLE_PNG)); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoadComplete); shaderFilter = new ShaderFilter(new Shader(new Base64(HEATBLUR_PBJ))); } private function onLoadComplete(event:Event) : void { var loader:Loader = Loader(event.target.loader); var bitmap:Bitmap = Bitmap(loader.content); var matrix:Matrix = new Matrix(); matrix.scale(8, 8); heat1.draw(bitmap.bitmapData, matrix); } private function onEnterFrame(event:Event) : void { heat2.applyFilter(heat1, heat1.rect, new Point(), shaderFilter); var tmp:BitmapData = heat1; heat1 = heat2; heat2 = tmp; buffer.applyFilter(heat1, heat1.rect, new Point(), shaderFilter); } private function onMouseDown(event:MouseEvent) : void { heat1.fillRect(new Rectangle(128, 128, 128, 128), 0xffffffff); } } } import flash.utils.ByteArray; class Base64 extends ByteArray { private static const BASE64:Array = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,62,0,0,0,63,52,53,54,55,56,57,58,59,60,61,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,0,0,0,0,0,0,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,0,0,0,0,0]; public function Base64(str:String) { var n:int, j:int; for(var i:int = 0; i < str.length && str.charAt(i) != "="; i++) { j = (j << 6) | BASE64[str.charCodeAt(i)]; n += 6; while(n >= 8) { writeByte((j >> (n -= 8)) & 0xFF); } } position = 0; } }