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/*
* Copyright 1996-2008 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;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Vector;
/**
* The SharedGroup node provides the ability to share a scene graph from
* multiple other scene graphs through the use of a Link node.
*/
class SharedGroupRetained extends GroupRetained implements TargetsInterface {
/*
static final int ILLEGAL_LEAF_MASK =
1 << NodeRetained.BACKGROUND |
1 << NodeRetained.BEHAVIOR |
1 << NodeRetained.CLIP |
1 << NodeRetained.LINEARFOG |
1 << NodeRetained.EXPONENTIALFOG |
1 << NodeRetained.SOUNDSCAPE |
1 << NodeRetained.VIEWPLATFORM |
1 << NodeRetained.BOUNDINGLEAF;
*/
// The current list of child transform group nodes or link nodes
// under a transform group
ArrayList childTransformLinks = new ArrayList(1);
// key which identifies a unique path from a
// locale to this transform group
HashKey currentKey = new HashKey();
// key which identifies a unique path from a locale to this switch link
HashKey switchKey = new HashKey();
/**
* The Shared Group Node's parent vector.
*/
Vector parents = new Vector(1);
// J3d copy.
CachedTargets[] j3dCTs = null;
// User copy.
CachedTargets[] cachedTargets = null;
// A bitmask of the types in targets for transform targets
int localTargetThreads = 0;
// combined localTargetThreads and decendants' localTargetThreads
int targetThreads = 0;
ArrayList switchStates = null;
SharedGroupRetained() {
this.nodeType = NodeRetained.SHAREDGROUP;
}
// SharedGroup specific data at SetLive.
@Override
void setAuxData(SetLiveState s, int index, int hkIndex) {
int i, size;
// Group's setAuxData()
super.setAuxData(s, index, hkIndex);
branchGroupPaths.add(hkIndex, s.branchGroupPaths.get(index));
if (orderedPaths == null) {
orderedPaths = new ArrayList(1);
}
orderedPaths.add(hkIndex, s.orderedPaths.get(index));
if (switchStates == null) {
switchStates = new ArrayList(1);
}
switchStates.add(hkIndex, s.switchStates.get(index));
if (viewLists == null) {
viewLists = new ArrayList>(1);
}
// If there are some ViewSpecificGroups in the path above this SharedGroup
// System.err.println("====> hkIndex = "+hkIndex+" s.viewLists = "+s.viewLists);
if (s.viewLists != null) {
viewLists.add(hkIndex, s.viewLists.get(index));
}
else {
viewLists.add(hkIndex, null);
}
if (lights == null) {
lights = new ArrayList>(1);
}
if (s.lights != null) {
lights.add(hkIndex, s.lights.get(index));
}
else {
lights.add(hkIndex, null);
}
if (fogs == null) {
fogs = new ArrayList>(1);
}
if (s.fogs != null) {
fogs.add(hkIndex, s.fogs.get(index));
}
else {
fogs.add(hkIndex, null);
}
if (modelClips == null) {
modelClips = new ArrayList>(1);
}
if (s.modelClips != null) {
modelClips.add(hkIndex, s.modelClips.get(index));
}
else {
modelClips.add(hkIndex, null);
}
if (altAppearances == null) {
altAppearances = new ArrayList>(1);
}
if (s.altAppearances != null) {
altAppearances.add(hkIndex, s.altAppearances.get(index));
}
else {
altAppearances.add(hkIndex, null);
}
}
@Override
void setNodeData(SetLiveState s) {
// For inSharedGroup case.
int i, j, len;
if (localToVworld == null) {
localToVworld = new Transform3D[s.keys.length][];
localToVworldIndex = new int[s.keys.length][];
localToVworldKeys = new HashKey[s.keys.length];
cachedTargets = new CachedTargets[s.keys.length];
len=0;
}
else {
int newLen = localToVworld.length + s.keys.length;
Transform3D newTList[][] = new Transform3D[newLen][];
HashKey newHList[] = new HashKey[newLen];
int newIndexList[][] = new int[newLen][];
CachedTargets newTargets[] = new CachedTargets[newLen];
len = localToVworld.length;
// Copy the existing data into the newly created data objects.
System.arraycopy(localToVworld, 0, newTList, 0, localToVworld.length);
System.arraycopy(localToVworldIndex, 0, newIndexList, 0,
localToVworldIndex.length);
System.arraycopy(localToVworldKeys, 0, newHList, 0,
localToVworldKeys.length);
System.arraycopy(cachedTargets, 0, newTargets, 0,
cachedTargets.length);
localToVworld = newTList;
localToVworldIndex = newIndexList;
localToVworldKeys = newHList;
cachedTargets = newTargets;
}
int[] hkIndex = new int[1];
int hkIndexPlus1, blkSize;
s.hashkeyIndex = new int[s.keys.length];
// This should appear before super.setNodeData() if it exists
s.parentBranchGroupPaths = branchGroupPaths;
for(i=len, j=0; i(1);
orderedPaths = null;
switchStates = null;
cachedTargets = null;
targetThreads = 0;
lights.clear();
fogs.clear();
modelClips.clear();
altAppearances.clear();
}
else {
int index, len;
// Remove the localToVworld key
int newLen = localToVworld.length - s.keys.length;
Transform3D[][] newTList = new Transform3D[newLen][];
HashKey[] newHList = new HashKey[newLen];
Transform3D newChildTList[][] = null;
int[][] newIndexList = new int[newLen][];
CachedTargets[] newTargets = new CachedTargets[newLen];
int[] tempIndex = new int[s.keys.length];
int curStart =0, newStart =0;
boolean found = false;
for(i=0;i= 0) {
found = true;
if(index == curStart) {
curStart++;
}
else {
len = index - curStart;
System.arraycopy(localToVworld, curStart, newTList, newStart, len);
System.arraycopy(localToVworldIndex, curStart, newIndexList,
newStart, len);
System.arraycopy(localToVworldKeys, curStart, newHList, newStart, len);
System.arraycopy(cachedTargets, curStart, newTargets,
newStart, len);
curStart = index+1;
newStart = newStart + len;
}
}
else {
found = false;
MasterControl.getCoreLogger().severe("Can't Find matching hashKey in SG.removeNodeData.");
}
}
if((found == true) && (curStart < localToVworld.length)) {
len = localToVworld.length - curStart;
System.arraycopy(localToVworld, curStart, newTList, newStart, len);
System.arraycopy(localToVworldIndex, curStart, newIndexList,
newStart, len);
System.arraycopy(localToVworldKeys, curStart, newHList, newStart, len);
System.arraycopy(cachedTargets, curStart, newTargets,
newStart, len);
}
// Must be in reverse, to preserve right indexing.
for (i = tempIndex.length-1; i >= 0 ; i--) {
if(tempIndex[i] >= 0) {
branchGroupPaths.remove(tempIndex[i]);
orderedPaths.remove(tempIndex[i]);
switchStates.remove(tempIndex[i]);
lights.remove(tempIndex[i]);
fogs.remove(tempIndex[i]);
modelClips.remove(tempIndex[i]);
altAppearances.remove(tempIndex[i]);
}
}
localToVworld = newTList;
localToVworldIndex = newIndexList;
localToVworldKeys = newHList;
cachedTargets = newTargets;
}
s.localToVworld = localToVworld;
s.localToVworldIndex = localToVworldIndex;
s.localToVworldKeys = localToVworldKeys;
s.orderedPaths = orderedPaths;
s.switchStates = switchStates;
s.viewLists = viewLists;
s.lights = lights;
s.fogs = fogs;
s.modelClips = modelClips;
s.altAppearances = altAppearances;
}
@Override
void clearLive(SetLiveState s) {
int i,j,k, index;
Transform3D savedLocalToVworld[][] = s.localToVworld;
int savedLocalToVworldIndex[][] = s.localToVworldIndex;
HashKey savedLocalToVworldKeys[] = s.localToVworldKeys;
ArrayList savedOrderedPaths = s.orderedPaths;
ArrayList> savedViewLists = s.viewLists;
ArrayList> savedLights = s.lights;
ArrayList> savedFogs = s.fogs;
ArrayList> savedMclips = s.modelClips;
ArrayList> savedAltApps = s.altAppearances;
Targets[] savedSwitchTargets = s.switchTargets;
Targets[] savedTransformTargets = s.transformTargets;
// no need to gather targets from sg in clear live
s.transformTargets = null;
s.switchTargets = null;
// XXXX: This is a hack since removeNodeData is called before
// children are clearLives
int[] tempIndex = null;
// Don't keep the indices if everything will be cleared
if (s.keys.length != localToVworld.length) {
tempIndex = new int[s.keys.length];
for (i = s.keys.length-1; i >= 0; i--) {
tempIndex[i] = s.keys[i].equals(localToVworldKeys, 0, localToVworldKeys.length);
}
}
super.clearLive(s);
// Do this after children clearlive since part of the viewLists may get cleared
// during removeNodeData
if(refCount <= 0) {
viewLists.clear();
}
else {
// Must be in reverse, to preserve right indexing.
for (i = tempIndex.length-1; i >= 0 ; i--) {
if(tempIndex[i] >= 0) {
viewLists.remove(tempIndex[i]);
}
}
}
// restore setLiveState from it's local variables.
// removeNodeData has altered these variables.
s.localToVworld = savedLocalToVworld;
s.localToVworldIndex = savedLocalToVworldIndex;
s.localToVworldKeys = savedLocalToVworldKeys;
s.orderedPaths = savedOrderedPaths;
s.viewLists = savedViewLists;
s.lights = savedLights;
s.fogs = savedFogs;
s.modelClips = savedMclips;
s.altAppearances = savedAltApps;
s.transformTargets = savedTransformTargets;
s.switchTargets = savedSwitchTargets;
}
void updateChildLocalToVworld(HashKey key, int index,
ArrayList dirtyTransformGroups,
ArrayList keySet,
UpdateTargets targets,
ArrayList blUsers) {
LinkRetained ln;
TransformGroupRetained tg;
int i,j;
Object obj;
CachedTargets ct = j3dCTs[index];
if (ct != null) {
targets.addCachedTargets(ct);
if (ct.targetArr[Targets.BLN_TARGETS] != null) {
gatherBlUsers(blUsers, ct.targetArr[Targets.BLN_TARGETS]);
}
}
synchronized(childTransformLinks) {
for (i=0; i updateList) {
SwitchRetained sw;
LinkRetained ln;
Object obj;
int i,j,k;
ArrayList childSwitchLinks = childrenSwitchLinks.get(child);
for (i=0; i>(1);
}
childrenSwitchLinks.add(index, new ArrayList(1));
}
@Override
void appendChildrenData() {
if (childrenSwitchLinks == null) {
childrenSwitchLinks = new ArrayList>(1);
}
childrenSwitchLinks.add(new ArrayList(1));
}
@Override
void removeChildrenData(int index) {
ArrayList oldSwitchLinks = childrenSwitchLinks.get(index);
oldSwitchLinks.clear();
childrenSwitchLinks.remove(index);
}
// ***************************
// TargetsInterface methods
// ***************************
@Override
public int getTargetThreads(int type) {
if (type == TargetsInterface.TRANSFORM_TARGETS) {
return targetThreads;
} else {
System.err.println("getTargetThreads: wrong arguments");
return -1;
}
}
@Override
TargetsInterface getClosestTargetsInterface(int type) {
return this;
}
// re-evalute localTargetThreads using newCachedTargets and
// re-evaluate targetThreads
@Override
public void computeTargetThreads(int type,
CachedTargets[] newCachedTargets) {
localTargetThreads = 0;
if (type == TargetsInterface.TRANSFORM_TARGETS) {
for(int i=0; i getTargetsData(int type, int index) {
// index is ignores for SharedGroup
if (type == TargetsInterface.SWITCH_TARGETS) {
return switchStates;
}
else {
System.err.println("getTargetsData: wrong arguments");
return null;
}
}
@Override
void childDoSetLive(NodeRetained child, int childIndex, SetLiveState s) {
int i;
s.childSwitchLinks = childrenSwitchLinks.get(childIndex);
s.switchStates = switchStates;
if(child!=null)
child.setLive(s);
}
void childCheckSetLive(NodeRetained child, int childIndex, SetLiveState s) {
s.childTransformLinks = childTransformLinks;
s.parentTransformLink = this;
child.setLive(s);
}
/**
* Make the boundsCache of this node and all its parents dirty
*/
@Override
void dirtyBoundsCache() {
// Possible optimisation is to not traverse up the tree
// if the cachedBounds==null. However this is not the case
// if the node is the child of a SharedGroup
if (VirtualUniverse.mc.cacheAutoComputedBounds) {
// Issue 514 : NPE in Wonderland : triggered in cached bounds computation
validCachedBounds = false;
synchronized(parents) {
Enumeration e = parents.elements();
while(e.hasMoreElements()) {
LinkRetained parent = (LinkRetained) e.nextElement();
if (parent!=null) {
parent.dirtyBoundsCache();
}
}
}
}
}
}
