Dead Code Preservation :: Archived AS3 works from wonderfl.net

Simple Fast Bilinear Color Interpolation

Simple Fast Bilinear Color Interpolation.
Details:
http://bruce-lab.blogspot.com/2011/05/simple-fast-bilinear-color.html
/**
 * Copyright Bruce_Jawn ( http://wonderfl.net/user/Bruce_Jawn )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/hQhJ
 */

/**
*Simple Fast Bilinear Color Interpolation
*May 7, 2011
*Bruce Jawn
*http://bruce-lab.blogspot.com

*Copyright (c) <2011> <Bruce Jawn>
*This software is released under the MIT License 
*<http://www.opensource.org/licenses/mit-license.php>
**/
package {
    import flash.display.*;
    [SWF(width="256", height="256", backgroundColor="#000000")]
    public class SFBilinearColorInterpolation extends Sprite {
        public function SFBilinearColorInterpolation() {
            //OutPut
            var OutPutData:BitmapData=new BitmapData(256,256,false,0x000000);
            var OutPut:Bitmap=new Bitmap(OutPutData);
            addChild(OutPut);
            //colors to interpolate
            var c0:uint=0xffffff;var c1:uint=0xff0000;
            var c3:uint=0x0000ff;var c2:uint=0x00ff00;
            //scales
            var sy:Number=1.0/256;
            var sx:Number=1.0/256;
            //color differences: left direction
            var cdy0r:Number=((c3>>16&0xff)-(c0>>16&0xff))*sy;
            var cdy0g:Number=((c3>>8&0xff)-(c0>>8&0xff))*sy;
            var cdy0b:Number=((c3&0xff)-(c0&0xff))*sy;
            //color differences: top direction
            var cdx0r:Number=((c1>>16&0xff)-(c0>>16&0xff))*sx;
            var cdx0g:Number=((c1>>8&0xff)-(c0>>8&0xff))*sx;
            var cdx0b:Number=((c1&0xff)-(c0&0xff))*sx;
            //color differences: down direction
            var cdx1r:Number=((c2>>16&0xff)-(c3>>16&0xff))*sx;
            var cdx1g:Number=((c2>>8&0xff)-(c3>>8&0xff))*sx;
            var cdx1b:Number=((c2&0xff)-(c3&0xff))*sx;
            //difference of two color differences (down-top)
            var cdx10r:Number=(cdx1r-cdx0r)*sy;
            var cdx10g:Number=(cdx1g-cdx0g)*sy;
            var cdx10b:Number=(cdx1b-cdx0b)*sy;
            //x direction colors
            var c0r:uint=c0>>16&0xff;
            var c0g:uint=c0>>8&0xff;
            var c0b:uint=c0&0xff;
            //temp vars
            var cr:Number;
            var cg:Number;
            var cb:Number;
            //
            for (var i:uint=0; i<256; i++) {
                cr=c0r;
                cg=c0g;
                cb=c0b;
                for (var j:uint=0; j<256; j++) {
                    OutPutData.setPixel(i,j,cr<<16|cg<<8|cb);
                    //interpolation of y direction
                    cr+=cdy0r;
                    cg+=cdy0g;
                    cb+=cdy0b;
                }//end of for j
                //interpolation of x direction
                c0r+=cdx0r;
                c0g+=cdx0g;
                c0b+=cdx0b;
                //update y direction color difference
                cdy0r+=cdx10r;
                cdy0g+=cdx10g;
                cdy0b+=cdx10b;
            }//end of for i
        }//end of function
    }//end of class
}//end of package