Load the bytecode of the image into String and convert to Bitmap in Flash AS3

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Load the bytecode of the image into String and convert to Bitmap in Flash AS3

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#1 by (2 votes)

3

I need to load the bytecodes of the image into a String and then convert it to Bitmap . I am using the code below but without success:

var urlLoader:URLLoader = new URLLoader();
urlLoader.load(new URLRequest("imagebytecode.txt"));
urlLoader.addEventListener(Event.COMPLETE, loaded);

function loaded(e:Event):void {

   var str:String = urlLoader.data;
   var byteArray:ByteArray = new ByteArray();
   byteArray.writeUTFBytes(str);
   var bitData:BitmapData = new BitmapData(100, 100);
   var rec:Rectangle = new Rectangle(0, 0, 100, 100);
   bitData.setPixels(rec, byteArray);
   var bit:Bitmap = Bitmap(bitData);

}

How much do I encode the image to Base64 and open it using the Steve Webster library, works correctly.

string imagem actionscript-3 bytecode

asked by anonymous 11.02.2014 / 19:05

1 answer

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score 2 · Answer 1

The flashplayer itself has a class for you to convert a string to the base64 format and also has a class to do the reverse process.

In your case, this code did not work, because you need to decode (or interpret) the string.

I did not test the example below but this is the path you should follow

var urlLoader:URLLoader = new URLLoader();
urlLoader.load(new URLRequest("imagebytecode.txt"));
urlLoader.addEventListener(Event.COMPLETE, loaded);

function loaded(e:Event):void
{
    var str:String = urlLoader.data;
    var base64:Base64Decoder = new Base64Decoder;

    // decodifica e adiciona o resultado no buffer
    base64.decode(str);

    // obtem uma amostra em bytes do resultado
    var bytes:ByteArray = base64.toByteArray();

    var rect:Rectangle = new Rectangle(100, 100);
    var bitmapData:BitmapData = new BitmapData(rect.width, rect.height);

    // escreve a amostra dentro do bitmap data
    bitmapData.setPixels(rect, bytes);

    // e finalmente, a imagem
    var bitmap:Bitmap = new Bitmap(bitmapData);
}