code: package org.sunflow.core;
  
  /**
   * This interface represents an image sampling algorithm capable of rendering
   * the entire image. Implementations are responsible for anti-aliasing and
   * filtering.
   */
  public interface ImageSampler {
      /**
       * Prepare the sampler for rendering an image of w x h pixels
       * 
       * @param w width of the image
       * @param h height of the image
       */
      public boolean prepare(Options options, Scene scene, int w, int h);
  
      /**
       * Render the image to the specified display. The sampler can assume the
       * display has been opened and that it will be closed after the method
       * returns.
       * 
       * @param display Display driver to send image data to
       */
      public void render(Display display);
  }