ProducingGraphicsBuffer

import java.awt.Component;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.ColorModel;
import java.awt.image.DirectColorModel;
import java.awt.image.ImageConsumer;
import java.awt.image.ImageObserver;
import java.awt.image.ImageProducer;

public class ProducingGraphicsBuffer implements ImageProducer, ImageObserver {

    public int[] pixels;
    public int width;
    public int height;
    protected ColorModel colorModel;
    protected ImageConsumer imageConsumer;
    public Image image;

    public ProducingGraphicsBuffer(int width, int height, Component component) {
        this.width = width;
        this.height = height;
        pixels = new int[width * height];
        colorModel = new DirectColorModel(32, 16711680, 65280, 255);
        image = component.createImage(this);
        drawPixels();
        component.prepareImage(image, this);
        drawPixels();
        component.prepareImage(image, this);
        drawPixels();
        component.prepareImage(image, this);
        createRasterizer();
    }

    public void createRasterizer() {
        Rasterizer.createRasterizer(pixels, width, height);
    }

    public void drawGraphics(int x, int y, Graphics graphics) {
        drawPixels();
        graphics.drawImage(image, x, y, this);
    }

    @Override
    public synchronized void addConsumer(ImageConsumer imageConsumer) {
        this.imageConsumer = imageConsumer;
        imageConsumer.setDimensions(width, height);
        imageConsumer.setProperties(null);
        imageConsumer.setColorModel(colorModel);
        imageConsumer.setHints(14);
    }

    @Override
    public synchronized boolean isConsumer(ImageConsumer imageConsumer) {
        if (this.imageConsumer == imageConsumer) {
            return true;
        }
        return false;
    }

    @Override
    public synchronized void removeConsumer(ImageConsumer imageConsumer) {
        if (this.imageConsumer == imageConsumer) {
            imageConsumer = null;
        }
    }

    @Override
    public void startProduction(ImageConsumer imageConsumer) {
        addConsumer(imageConsumer);
    }

    @Override
    public void requestTopDownLeftRightResend(ImageConsumer imageConsumer) {
        System.out.println("TDLR");
    }

    public synchronized void drawPixels() {
        if (imageConsumer != null) {
            imageConsumer.setPixels(0, 0, width, height, colorModel, pixels, 0, width);
            imageConsumer.imageComplete(2);
        }
    }

    @Override
    public boolean imageUpdate(Image image, int infoflags, int x, int y, int width, int height) {
        return true;
    }
}