/*
* @(#)CompositeContext.java 1.26 05/11/17
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package java.awt;
import java.awt.image.Raster;
import java.awt.image.WritableRaster;
/**
* The <code>CompositeContext</code> interface defines the encapsulated
* and optimized environment for a compositing operation.
* <code>CompositeContext</code> objects maintain state for
* compositing operations. In a multi-threaded environment, several
* contexts can exist simultaneously for a single {@link Composite}
* object.
* @see Composite
* @version 10 Feb 1997
*/
public interface CompositeContext {
/**
* Releases resources allocated for a context.
*/
public void dispose();
/**
* Composes the two source {@link Raster} objects and
* places the result in the destination
* {@link WritableRaster}. Note that the destination
* can be the same object as either the first or second
* source. Note that <code>dstIn</code> and
* <code>dstOut</code> must be compatible with the
* <code>dstColorModel</code> passed to the
* {@link Composite#createContext(java.awt.image.ColorModel, java.awt.image.ColorModel, java.awt.RenderingHints) createContext}
* method of the <code>Composite</code> interface.
* @param src the first source for the compositing operation
* @param dstIn the second source for the compositing operation
* @param dstOut the <code>WritableRaster</code> into which the
* result of the operation is stored
* @see Composite
*/
public void compose(Raster src,
Raster dstIn,
WritableRaster dstOut);
}