CODEWITHSUNDEEP
actionscript-3
tailedmouse
tailedmouse

Reputation: 365

how to convert a bitmap into a bytearray?

i have to save a bitmap in to a sharedobject....I read it online that inorder to do that I would have to convert into a bytearray..but I ma not sure how to do this...can somebody please explain to me a little step by step on how to convert a bitmap into bytearray..

this is the code i am working with

var btm:BitmapData;
var x_d:Array = new Array();

orange.addEventListener( MouseEvent.CLICK, firstc);
    function firstc (x:MouseEvent){

        btm = new BitmapData(200,200);
       x_d[0] = new Bitmap (btm);
        addChild(x_d[0]);
        btm.draw (orange);
            gotoAndStop(3);

    };

Upvotes: 1

Views: 5866

Answers (1)

terpimost
terpimost

Reputation: 91

If you want raw data you should use getPixels() method but if you want to store bitmapdata compressed as jpg or png do like this:

PNG

btm = new BitmapData(200,200);
...
var stream:ByteArray = PNGEncoder.encode( btm );

JPG

btm = new BitmapData(200,200);
...
var jpgEncoder:JPGEncoder = new JPGEncoder( 90 );
var stream:ByteArray = jpgEncoder.encode( btm );

for PNGEncoder and JPGEncoder classes use as3corelib

If you target users with Flash Player 11.3 and above you can use native encoder

Upvotes: 3

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