/*
* $RCSfile: DilateRIF.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:56:23 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.opimage;
import java.awt.RenderingHints;
import java.awt.image.DataBuffer;
import java.awt.image.RenderedImage;
import java.awt.image.SampleModel;
import java.awt.image.MultiPixelPackedSampleModel;
import java.awt.image.renderable.ParameterBlock;
import java.awt.image.renderable.RenderedImageFactory;
import com.lightcrafts.mediax.jai.BorderExtender;
import com.lightcrafts.mediax.jai.ImageLayout;
import com.lightcrafts.mediax.jai.KernelJAI;
/**
* @see DilateOpImage
*/
public class DilateRIF implements RenderedImageFactory {
/** Constructor. */
public DilateRIF() {}
/**
* Create a new instance of DilateOpImage in the rendered layer.
* This method satisfies the implementation of RIF.
*
* @param paramBlock The source image and the dilation kernel.
*/
public RenderedImage create(ParameterBlock paramBlock,
RenderingHints renderHints) {
// Get ImageLayout from renderHints if any.
ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
// Get BorderExtender from renderHints if any.
BorderExtender extender = RIFUtil.getBorderExtenderHint(renderHints);
KernelJAI unRotatedKernel =
(KernelJAI)paramBlock.getObjectParameter(0);
KernelJAI kJAI = unRotatedKernel.getRotatedKernel();
RenderedImage source = paramBlock.getRenderedSource(0);
SampleModel sm = source.getSampleModel();
// check dataType and binary
int dataType = sm.getDataType();
boolean isBinary = (sm instanceof MultiPixelPackedSampleModel) &&
(sm.getSampleSize(0) == 1) &&
(dataType == DataBuffer.TYPE_BYTE ||
dataType == DataBuffer.TYPE_USHORT ||
dataType == DataBuffer.TYPE_INT);
// possible speed up later: 3x3 with table lookup
if (isBinary){
return new DilateBinaryOpImage(source,
extender,
renderHints,
layout,
kJAI);
}else{
return new DilateOpImage(source,
extender,
renderHints,
layout,
kJAI);
}
}
}