// Copyright 2004, Boutell.Com, Inc.
// Released under the terms of the GNU General Public License,
// version 2 or later.

import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

public class FracsterCL {
    // creates a new image of the given width and height from the
    // given array of bytes
    public static BufferedImage makeImage(int[] pix, int width, int height) {
	BufferedImage bim = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
	WritableRaster wr = bim.getWritableTile(0, 0);
	wr.setDataElements(0, 0, width, height, pix);
	bim.releaseWritableTile(0, 0);
	return bim;
    }

    public static void main(String[] args) {
	if(args.length != 7) {
	    System.err.println("usage: FracsterCL w h x y d i filename.png");
	    System.exit(1);
	}
	try {
            int w = Integer.valueOf(args[0]).intValue();
            int h = Integer.valueOf(args[1]).intValue();
            MandelbrotSet mset = new MandelbrotSet(null,
                w * 2,
                h * 2,
                Double.valueOf(args[2]).doubleValue(),
                Double.valueOf(args[3]).doubleValue(),
                Double.valueOf(args[4]).doubleValue(),
                Integer.valueOf(args[5]).intValue());
            mset.renderSet();
	    // create the new image, antialiased
            int pix[] = new int[w * h];
            int y;
	    for (y = 0; (y < h); y++) {
                int my = y << 1;
                int x;
                int mr = w * 2; 
                for (x = 0; (x < w); x++) {
                  int mx = x << 1;
                  int red = ((mset.pix[my * mr + mx] & 0x00FF0000) +
			  (mset.pix[my * mr + mx + 1] & 0x00FF0000) +
			  (mset.pix[(my + 1) * mr + mx] & 0x00FF0000) +
			  (mset.pix[(my + 1) * mr + mx + 1] & 0x00FF0000)) >> 18;
					
                  int green = ((mset.pix[my * mr + mx] & 0x0000FF00) +
			  (mset.pix[my * mr + mx + 1] & 0x0000FF00) +
			  (mset.pix[(my + 1) * mr + mx] & 0x0000FF00) +
			  (mset.pix[(my + 1) * mr + mx + 1] & 0x0000FF00)) >> 10;
                  int blue = ((mset.pix[my * mr + mx] & 0x000000FF) +
			  (mset.pix[my * mr + mx + 1] & 0x000000FF) +
			  (mset.pix[(my + 1) * mr + mx] & 0x000000FF) +
			  (mset.pix[(my + 1) * mr + mx + 1] & 0x000000FF)) >> 2;
                  pix[y * w + x] = 0xFF000000 + 
                      (red << 16) + (green << 8) + blue;
               }
            }
	    BufferedImage destIm = makeImage(pix, w, h);
	    // save the result
	    ImageIO.write(destIm, "png", new File(args[6]));
	} catch(IOException ie) {
	    ie.printStackTrace();
	}
    }
}