/*
* $RCSfile: MlibAndConstRIF.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:55:50 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.mlib;
import java.awt.RenderingHints;
import java.awt.image.DataBuffer;
import java.awt.image.RenderedImage;
import java.awt.image.SampleModel;
import java.awt.image.renderable.ParameterBlock;
import java.awt.image.renderable.RenderedImageFactory;
import com.lightcrafts.mediax.jai.ImageLayout;
import com.lightcrafts.media.jai.opimage.RIFUtil;
/**
* A <code>RIF</code> supporting the "AndConst" operation in the
* rendered image mode using MediaLib.
*
* @see com.lightcrafts.mediax.jai.operator.AndConstDescriptor
* @see MlibAndConstOpImage
*
*/
public class MlibAndConstRIF implements RenderedImageFactory {
/** Constructor. */
public MlibAndConstRIF() {}
/**
* Creates a new instance of <code>MlibAndConstOpImage</code> in
* the rendered image mode.
*
* @param args The source image and the constants.
* @param hints May contain rendering hints and destination image layout.
*/
public RenderedImage create(ParameterBlock args,
RenderingHints hints) {
ImageLayout layout = RIFUtil.getImageLayoutHint(hints);
if (!MediaLibAccessor.isMediaLibCompatible(args, layout) ||
!MediaLibAccessor.hasSameNumBands(args, layout)) {
return null;
}
/* Check whether dest has data type of float or double. */
if (layout != null) {
SampleModel sm = layout.getSampleModel(null);
if (sm != null) {
int dtype = sm.getDataType();
if (dtype == DataBuffer.TYPE_FLOAT ||
dtype == DataBuffer.TYPE_DOUBLE) {
return null;
}
}
}
return new MlibAndConstOpImage(args.getRenderedSource(0),
hints, layout,
(int[])args.getObjectParameter(0));
}
}