01: /*
02: * $RCSfile: SubtractFromConstCRIF.java,v $
03: *
04: * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
05: *
06: * Use is subject to license terms.
07: *
08: * $Revision: 1.1 $
09: * $Date: 2005/02/11 04:56:45 $
10: * $State: Exp $
11: */
12: package com.sun.media.jai.opimage;
13:
14: import java.awt.RenderingHints;
15: import java.awt.image.RenderedImage;
16: import java.awt.image.renderable.ParameterBlock;
17: import javax.media.jai.CRIFImpl;
18: import javax.media.jai.ImageLayout;
19: import java.util.Map;
20:
21: /**
22: * A <code>CRIF</code> supporting the "SubtractFromConst" operation in
23: * the rendered and renderable image layers.
24: *
25: * @see javax.media.jai.operator.SubtractFromConstDescriptor
26: * @see SubtractFromConstOpImage
27: *
28: *
29: * @since EA2
30: */
31: public class SubtractFromConstCRIF extends CRIFImpl {
32:
33: /** Constructor. */
34: public SubtractFromConstCRIF() {
35: super ("subtractfromconst");
36: }
37:
38: /**
39: * Creates a new instance of <code>SubtractFromConstOpImage</code>
40: * in the rendered layer.
41: *
42: * @param args The source image and the constants.
43: * @param hints Optionally contains destination image layout.
44: */
45: public RenderedImage create(ParameterBlock args,
46: RenderingHints renderHints) {
47: // Get ImageLayout from renderHints if any.
48: ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
49:
50: return new SubtractFromConstOpImage(args.getRenderedSource(0),
51: renderHints, layout, (double[]) args
52: .getObjectParameter(0));
53: }
54: }
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