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/*
* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
/**
* A 2D array of depth (Z) values stored in the most efficient format for a
* particular device. Values are not accessible by the user and may only be
* used to read the Z values and subsequently write them back.
*/
public class DepthComponentNative extends DepthComponent {
/**
* Package scope defualt constructor for use by cloneNodeComponent
*/
DepthComponentNative() {
}
/**
* Constructs a new native depth (z-buffer) component object with the
* specified width and height.
* @param width the width of the array of depth values
* @param height the height of the array of depth values
*/
public DepthComponentNative(int width, int height) {
((DepthComponentNativeRetained)this.retained).initialize(width, height);
}
/**
* Copies the depth data from this object to the specified array.
* @param depthData array of ints that will receive a copy of
* the depth data
*/
void getDepthData(int[] depthData) {
((DepthComponentNativeRetained)this.retained).getDepthData(depthData);
}
/**
* Creates a retained mode DepthComponentIntRetained object that this
* DepthComponentInt component object will point to.
*/
@Override
void createRetained() {
this.retained = new DepthComponentNativeRetained();
this.retained.setSource(this);
}
/**
* Creates a new DepthComponentNative object. Called from a Leaf node's
* <code>duplicateNode</code> method.
*
* @return a duplicate of the DepthComponentNative object.
*
* @see Node#duplicateNode
* @see Node#cloneTree
* @see NodeComponent#setDuplicateOnCloneTree
*/
@Override
public NodeComponent cloneNodeComponent() {
DepthComponentNativeRetained rt = (DepthComponentNativeRetained) retained;
DepthComponentNative d = new DepthComponentNative(rt.width,
rt.height);
d.duplicateNodeComponent(this);
return d;
}
/**
* Copies all node information from <code>originalNodeComponent</code> into
* the current node. This method is called from the
* <code>duplicateNode</code> method. This routine does
* the actual duplication of all "local data" (any data defined in
* this object).
*
* @param originalNodeComponent the original node to duplicate.
* @param forceDuplicate when set to <code>true</code>, causes the
* <code>duplicateOnCloneTree</code> flag to be ignored. When
* <code>false</code>, the value of each node's
* <code>duplicateOnCloneTree</code> variable determines whether
* NodeComponent data is duplicated or copied.
*
*
* @see Node#cloneTree
* @see NodeComponent#setDuplicateOnCloneTree
*/
@Override
void duplicateAttributes(NodeComponent originalNodeComponent,
boolean forceDuplicate) {
super.duplicateAttributes(originalNodeComponent, forceDuplicate);
int originalData[] = ((DepthComponentNativeRetained)
originalNodeComponent.retained).depthData;
int currentData[] = ((DepthComponentNativeRetained) retained).depthData;
if (originalData != null) {
for (int i=0; i < originalData.length; i++)
currentData[i] = originalData[i];
}
}
}
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