/*
* $RCSfile: ErrorDiffusionRIF.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:56:25 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.opimage;
import java.awt.RenderingHints;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.ParameterBlock;
import java.awt.image.renderable.RenderedImageFactory;
import com.lightcrafts.mediax.jai.ImageLayout;
import com.lightcrafts.mediax.jai.KernelJAI;
import com.lightcrafts.mediax.jai.LookupTableJAI;
/**
* A <code>RIF</code> supporting the "ErrorDiffusion" operation in the rendered
* image layer.
*
* @since EA2
* @see com.lightcrafts.mediax.jai.operator.ErrorDiffusionDescriptor
*/
public class ErrorDiffusionRIF implements RenderedImageFactory {
/** Constructor. */
public ErrorDiffusionRIF() {}
/**
* Creates a new instance of an error diffusion operator according to the
* color map and error filter kernel.
*
* @param paramBlock The color map and error filter kernel objects.
*/
public RenderedImage create(ParameterBlock paramBlock,
RenderingHints renderHints) {
// Get ImageLayout from renderHints if any.
ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
RenderedImage source = paramBlock.getRenderedSource(0);
LookupTableJAI lookupTable =
(LookupTableJAI)paramBlock.getObjectParameter(0);
KernelJAI kernel = (KernelJAI)paramBlock.getObjectParameter(1);
return new ErrorDiffusionOpImage(source, renderHints, layout,
lookupTable, kernel);
}
}