NoiseEffect.java

/*
  NoiseEffect.java

  (c) 2013 Edward Swartz

  All rights reserved. This program and the accompanying materials
  are made available under the terms of the Eclipse Public License v1.0
  which accompanies this distribution, and is available at
  http://www.eclipse.org/legal/epl-v10.html
 */
package v9t9.gui.client.awt;

import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;

import v9t9.gui.jna.V9t9Render;

/**
 * @author ejs
 *
 */
public class NoiseEffect implements IAwtMonitorEffect {

	private BufferedImage noisySurface;

	/**
	 * @param awtVideoRenderer
	 */
	public NoiseEffect() {
	}
	
	/* (non-Javadoc)
	 * @see v9t9.common.client.IMonitorEffect#getLabel()
	 */
	@Override
	public String getLabel() {
		return "Noisy";
	}

	/* (non-Javadoc)
	 * @see v9t9.common.client.IMonitorEffect#applyEffect(int, int, java.awt.image.BufferedImage, java.awt.Rectangle, java.awt.Rectangle)
	 */
	@Override
	public BufferedImage applyEffect(int destWidth, int destHeight,
			BufferedImage surface, Rectangle logRect, Rectangle physRect) {
		if (physRect.width / logRect.width <= 1) {
			return null;
		}
			
		if (noisySurface == null || noisySurface.getWidth() != destWidth || noisySurface.getHeight() != destHeight) {
			noisySurface = new BufferedImage(destWidth, destHeight, BufferedImage.TYPE_INT_BGR);
		}

		DataBufferInt buffer = (DataBufferInt) surface.getRaster().getDataBuffer();
		int[] data = buffer.getData();

		// modify the original area
		//if (logRect.x > 0) { logRect.x--; logRect.width++; }
		//if (logRect.y > 0) { logRect.y--; logRect.height++; }
		//if (logRect.y + logRect.height + 2 <= logMax.height) logRect.height++;

		//logRect = physicalToLogical(new Rectangle(x, y, width, height));
		//Rectangle physRect = logicalToPhysical(logRect);
		
		DataBufferInt noisyBuffer = (DataBufferInt) noisySurface.getRaster().getDataBuffer();
		int[] noisyData = noisyBuffer.getData();
		
		try {
			V9t9Render.INSTANCE.addNoiseRGBA/*Monitor*/(noisyData, data,
					destWidth * 4 * physRect.y + 4 * physRect.x,
					Math.min(noisyData.length, data.length) * 4,
					physRect.width, physRect.height, destWidth * 4,
					logRect.width, logRect.height, destHeight);
		} catch (Throwable t) {
			t.printStackTrace();
		}
		
		return noisySurface;
	}

}