/*
* $RCSfile: MlibWarpRIF.java,v $
*
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* $Revision: 1.1 $
* $Date: 2005/02/11 04:56:09 $
* $State: Exp $
*/
package com.lightcrafts.media.jai.mlib;
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.BorderExtender;
import com.lightcrafts.mediax.jai.ImageLayout;
import com.lightcrafts.mediax.jai.Interpolation;
import com.lightcrafts.mediax.jai.InterpolationNearest;
import com.lightcrafts.mediax.jai.InterpolationBilinear;
import com.lightcrafts.mediax.jai.InterpolationBicubic;
import com.lightcrafts.mediax.jai.InterpolationBicubic2;
import com.lightcrafts.mediax.jai.InterpolationTable;
import com.lightcrafts.mediax.jai.Warp;
import com.lightcrafts.mediax.jai.WarpGrid;
import com.lightcrafts.mediax.jai.WarpPolynomial;
import com.lightcrafts.media.jai.opimage.RIFUtil;
import com.sun.medialib.mlib.*;
/**
* A <code>RIF</code> supporting the "Warp" operation in the
* rendered image mode using MediaLib.
*
* @see com.lightcrafts.mediax.jai.operator.WarpDescriptor
* @see MlibWarpNearestOpImage
* @see MlibWarpBilinearOpImage
* @see MlibWarpBicubicOpImage
*
* @since 1.0
*
*/
public class MlibWarpRIF implements RenderedImageFactory {
/** Constructor. */
public MlibWarpRIF() {}
/**
* Creates a new instance of <code>MlibWarpOpImage</code> in
* the rendered image mode.
*
* @param args The source images.
* @param hints May contain rendering hints and destination image layout.
*/
public RenderedImage create(ParameterBlock args,
RenderingHints hints) {
/* Get ImageLayout and TileCache from RenderingHints. */
ImageLayout layout = RIFUtil.getImageLayoutHint(hints);
RenderedImage source = args.getRenderedSource(0);
if (!MediaLibAccessor.isMediaLibCompatible(args, layout) ||
!MediaLibAccessor.hasSameNumBands(args, layout) ||
// Medialib cannot deal with source image having tiles with any
// dimension greater than or equal to 32768
source.getTileWidth() >= 32768 ||
source.getTileHeight() >= 32768) {
return null;
}
/* Get BorderExtender from hints if any. */
BorderExtender extender = RIFUtil.getBorderExtenderHint(hints);
Warp warp = (Warp)args.getObjectParameter(0);
Interpolation interp = (Interpolation)args.getObjectParameter(1);
double[] backgroundValues = (double[])args.getObjectParameter(2);
int filter = -1;
if (interp instanceof InterpolationNearest) {
filter = Constants.MLIB_NEAREST;
} else if (interp instanceof InterpolationBilinear) {
filter = Constants.MLIB_BILINEAR;
} else if (interp instanceof InterpolationBicubic) {
filter = Constants.MLIB_BICUBIC;
} else if (interp instanceof InterpolationBicubic2) {
filter = Constants.MLIB_BICUBIC2;
} else if (interp instanceof InterpolationTable) {
;
// filter = Constants.MLIB_TABLE; not defined yet;
} else {
/* Other kinds of interpolation cannot be handled via mlib. */
return null;
}
if (warp instanceof WarpGrid) {
if (interp instanceof InterpolationTable){
return new MlibWarpGridTableOpImage(source,
extender, hints, layout,
(WarpGrid)warp,
interp,
backgroundValues);
}else{
return new MlibWarpGridOpImage(source,
extender, hints, layout,
(WarpGrid)warp,
interp, filter,
backgroundValues);
}
} else if (warp instanceof WarpPolynomial) {
if (interp instanceof InterpolationTable){
return new MlibWarpPolynomialTableOpImage(source,
extender, hints, layout,
(WarpPolynomial)warp,
interp,
backgroundValues);
}else{
return new MlibWarpPolynomialOpImage(source,
extender, hints, layout,
(WarpPolynomial)warp,
interp, filter,
backgroundValues);
}
} else {
return null;
}
}
}