offscreencanvas3d.java

来自「java 3d编程的一些例子源代码」· Java 代码 · 共 83 行

/*
 * $RCSfile: OffScreenCanvas3D.java,v $
 *
 * Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistribution of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or
 * maintenance of any nuclear facility.
 *
 * $Revision: 1.1 $
 * $Date: 2006/02/01 01:32:53 $
 * $State: Exp $
 */

package org.jdesktop.j3d.examples.print_canvas3d;

import java.awt.GraphicsConfiguration;
import java.awt.image.BufferedImage;
import javax.media.j3d.*;
import javax.vecmath.*;


class OffScreenCanvas3D extends Canvas3D {
    OffScreenCanvas3D(GraphicsConfiguration graphicsConfiguration,
		      boolean offScreen) {

	super(graphicsConfiguration, offScreen);
    }

    BufferedImage doRender(int width, int height) {

	BufferedImage bImage =
	    new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

	ImageComponent2D buffer =
	    new ImageComponent2D(ImageComponent.FORMAT_RGBA, bImage);

	setOffScreenBuffer(buffer);
	renderOffScreenBuffer();
	waitForOffScreenRendering();
	bImage = getOffScreenBuffer().getImage();

        // To release the reference of buffer inside Java 3D.
        setOffScreenBuffer(null);

	return bImage;
    }

    public void postSwap() {
	// No-op since we always wait for off-screen rendering to complete
    }
}