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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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// This file is part of Distorted. //
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// //
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// Distorted is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// Distorted is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6a06a912
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Leszek Koltunski
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package org.distorted.library;
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import java.util.ArrayList;
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import java.util.HashMap;
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import android.opengl.GLES20;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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Leszek Koltunski
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* Class which represents a Node in a Tree of (Texture,EffectQueue,Grid) set.
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*
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* Having organized such sets into a Tree, we can then render any Node to any Framebuffer.
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* That recursively renders the set held in the Node and all its children.
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Leszek Koltunski
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*/
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b455eb48
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public class DistortedObjectTree
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{
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private static HashMap<ArrayList<Long>,NodeData> mMapNodeID = new HashMap<>();
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private static long mNextNodeID =0;
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private GridObject mGrid;
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private DistortedEffectQueues mQueues;
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private DistortedTexture mTexture;
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private NodeData mData;
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private DistortedObjectTree mParent;
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private ArrayList<DistortedObjectTree> mChildren;
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private int[] mNumChildren; // ==mChildren.length(), but we only create mChildren if the first one gets added
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private class NodeData
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{
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long ID;
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int numPointingNodes;
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DistortedFramebuffer mDF;
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int numRendered;
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NodeData(long id)
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{
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ID = id;
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numPointingNodes= 1;
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mDF = null;
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numRendered = 0;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static synchronized void onDestroy()
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{
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mNextNodeID = 0;
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mMapNodeID.clear();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void drawRecursive(long currTime, DistortedFramebuffer df)
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{
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mTexture.createTexture();
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if( mNumChildren[0]<=0 )
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{
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GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTexture.mTextureDataH[0]);
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}
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else
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{
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mData.mDF.createFBO();
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if( mData.numRendered==0 )
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{
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GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mData.mDF.fboIds[0]);
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GLES20.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
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if( mTexture.mBitmapSet[0] )
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{
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GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTexture.mTextureDataH[0]);
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mQueues.drawNoEffectsPriv(mTexture, mGrid, mData.mDF);
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}
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synchronized(this)
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{
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for(int i=0; i<mNumChildren[0]; i++)
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{
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mChildren.get(i).drawRecursive(currTime, mData.mDF);
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}
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}
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}
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mData.numRendered++;
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mData.numRendered %= mData.numPointingNodes;
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7cf783cb
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GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, df.fboIds[0]);
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GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mData.mDF.texIds[0]);
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}
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mQueues.drawPriv(currTime, mTexture, mGrid, df);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// tree isomorphism
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private void RecomputeNodeID(ArrayList<Long> prev)
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{
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ArrayList<Long> curr = generateIDList();
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if( mParent==null )
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{
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adjustNodeData(prev,curr);
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}
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else
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{
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ArrayList<Long> parentPrev = mParent.generateIDList();
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adjustNodeData(prev,curr);
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mParent.RecomputeNodeID(parentPrev);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private ArrayList<Long> generateIDList()
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{
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ArrayList<Long> ret = new ArrayList<>();
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ret.add( mTexture.getID() );
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DistortedObjectTree node;
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for(int i=0; i<mNumChildren[0]; i++)
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{
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node = mChildren.get(i);
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ret.add(node.mData.ID);
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}
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return ret;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void adjustNodeData(ArrayList<Long> oldList, ArrayList<Long> newList)
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{
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boolean otherNodesPoint = (mData.numPointingNodes>1);
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if( otherNodesPoint ) mData.numPointingNodes--;
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else mMapNodeID.remove(oldList);
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NodeData newData = mMapNodeID.get(newList);
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if( newData==null )
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{
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fee0865c
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if( otherNodesPoint ) mData = new NodeData(++mNextNodeID);
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else mData.ID = ++mNextNodeID; // numPointingNodes must be 1 already
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if( newList.size()>1 )
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{
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if( mData.mDF==null )
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mData.mDF = new DistortedFramebuffer(mTexture.getWidth(), mTexture.getHeight());
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}
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else
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{
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if( mData.mDF!=null )
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{
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mData.mDF.markForDeletion();
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mData.mDF = null;
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}
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else
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{
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b455eb48
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Leszek Koltunski
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android.util.Log.e("DistortedObjectTree", "adjustNodeData: impossible situation??");
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}
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}
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bd3da5b2
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mMapNodeID.put(newList, mData);
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}
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else
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{
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newData.numPointingNodes++;
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mData = newData;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// this will be called on startup and every time OpenGL context has been lost
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static void reset()
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{
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NodeData tmp;
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for(ArrayList<Long> key: mMapNodeID.keySet())
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{
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tmp = mMapNodeID.get(key);
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ed13a5de
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if( tmp.mDF != null )
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6a06a912
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{
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ed13a5de
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tmp.mDF.reset();
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d620ff06
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tmp.numRendered = 0;
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}
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}
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}
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fee0865c
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Debug - print all the Node IDs
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1942537e
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fee0865c
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Leszek Koltunski
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void debug(int depth)
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{
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String tmp="";
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int i;
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for(i=0; i<depth; i++) tmp +=" ";
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1942537e
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tmp += (mData.ID+" (nodes: "+mData.numPointingNodes+")");
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android.util.Log.e("NODE", tmp);
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for(i=0; i<mNumChildren[0]; i++)
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mChildren.get(i).debug(depth+1);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Debug - print contents of the HashMap
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static void debugMap()
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{
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NodeData tmp;
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for(ArrayList<Long> key: mMapNodeID.keySet())
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{
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tmp = mMapNodeID.get(key);
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android.util.Log.e("NODE", "key="+key+" NodeID: "+tmp.ID);
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}
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}
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1942537e
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Leszek Koltunski
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249 |
6a06a912
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Constructs new Node of the Tree.
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*
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4e2382f3
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Leszek Koltunski
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* @param texture DistortedTexture to put into the new Node.
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* @param queues DistortedEffectQueues to put into the new Node.
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* @param grid GridObject to put into the new Node.
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6a06a912
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Leszek Koltunski
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*/
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259 |
4e2382f3
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Leszek Koltunski
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public DistortedObjectTree(DistortedTexture texture, DistortedEffectQueues queues, GridObject grid)
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6a06a912
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{
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261 |
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mTexture= texture;
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mQueues = queues;
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a56bc359
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mGrid = grid;
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6a06a912
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mParent = null;
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mChildren = null;
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mNumChildren = new int[1];
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mNumChildren[0] = 0;
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9361b337
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ArrayList<Long> list = new ArrayList<>();
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list.add(mTexture.getID());
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6a06a912
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mData = mMapNodeID.get(list);
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if( mData!=null )
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{
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mData.numPointingNodes++;
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}
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else
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{
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mData = new NodeData(++mNextNodeID);
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1942537e
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mMapNodeID.put(list, mData);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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287 |
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* Copy-constructs new Node of the Tree from another Node.
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*
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289 |
b455eb48
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* @param node The DistortedObjectTree to copy data from.
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* @param flags bit field composed of a subset of the following:
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015642fb
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Leszek Koltunski
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* {@link Distorted#CLONE_BITMAP}, {@link Distorted#CLONE_MATRIX}, {@link Distorted#CLONE_VERTEX},
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* {@link Distorted#CLONE_FRAGMENT} and {@link Distorted#CLONE_CHILDREN}.
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* For example flags = CLONE_BITMAP | CLONE_CHILDREN.
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*/
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295 |
b455eb48
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Leszek Koltunski
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public DistortedObjectTree(DistortedObjectTree node, int flags)
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296 |
6a06a912
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{
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297 |
9361b337
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mParent = null;
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298 |
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mTexture= new DistortedTexture(node.mTexture,flags);
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mQueues = new DistortedEffectQueues(node.mQueues, flags);
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300 |
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mGrid = node.mGrid;
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301 |
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if( (flags & Distorted.CLONE_CHILDREN) != 0 )
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303 |
6a06a912
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{
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304 |
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mChildren = node.mChildren;
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mNumChildren = node.mNumChildren;
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}
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else
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308 |
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{
|
309 |
|
|
mChildren = null;
|
310 |
|
|
mNumChildren = new int[1];
|
311 |
|
|
mNumChildren[0] = 0;
|
312 |
|
|
}
|
313 |
|
|
|
314 |
|
|
ArrayList<Long> list = generateIDList();
|
315 |
|
|
|
316 |
|
|
mData = mMapNodeID.get(list);
|
317 |
|
|
|
318 |
|
|
if( mData!=null )
|
319 |
|
|
{
|
320 |
|
|
mData.numPointingNodes++;
|
321 |
|
|
}
|
322 |
|
|
else
|
323 |
|
|
{
|
324 |
|
|
mData = new NodeData(++mNextNodeID);
|
325 |
|
|
mMapNodeID.put(list, mData);
|
326 |
|
|
}
|
327 |
|
|
}
|
328 |
|
|
|
329 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
330 |
|
|
/**
|
331 |
|
|
* Adds a new child to the last position in the list of our Node's children.
|
332 |
|
|
*
|
333 |
|
|
* @param node The new Node to add.
|
334 |
|
|
*/
|
335 |
b455eb48
|
Leszek Koltunski
|
public synchronized void attach(DistortedObjectTree node)
|
336 |
6a06a912
|
Leszek Koltunski
|
{
|
337 |
|
|
ArrayList<Long> prev = generateIDList();
|
338 |
|
|
|
339 |
9361b337
|
Leszek Koltunski
|
if( mChildren==null ) mChildren = new ArrayList<>(2);
|
340 |
6a06a912
|
Leszek Koltunski
|
|
341 |
|
|
node.mParent = this;
|
342 |
|
|
mChildren.add(node);
|
343 |
|
|
mNumChildren[0]++;
|
344 |
|
|
|
345 |
|
|
RecomputeNodeID(prev);
|
346 |
|
|
}
|
347 |
|
|
|
348 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
349 |
|
|
/**
|
350 |
|
|
* Adds a new child to the last position in the list of our Node's children.
|
351 |
|
|
*
|
352 |
4e2382f3
|
Leszek Koltunski
|
* @param texture DistortedTexture to initialize our child Node with.
|
353 |
|
|
* @param queues DistortedEffectQueues to initialize our child Node with.
|
354 |
|
|
* @param grid GridObject to initialize our child Node with.
|
355 |
6a06a912
|
Leszek Koltunski
|
* @return the newly constructed child Node, or null if we couldn't allocate resources.
|
356 |
|
|
*/
|
357 |
4e2382f3
|
Leszek Koltunski
|
public synchronized DistortedObjectTree attach(DistortedTexture texture, DistortedEffectQueues queues, GridObject grid)
|
358 |
6a06a912
|
Leszek Koltunski
|
{
|
359 |
|
|
ArrayList<Long> prev = generateIDList();
|
360 |
|
|
|
361 |
9361b337
|
Leszek Koltunski
|
if( mChildren==null ) mChildren = new ArrayList<>(2);
|
362 |
4e2382f3
|
Leszek Koltunski
|
DistortedObjectTree node = new DistortedObjectTree(texture,queues,grid);
|
363 |
6a06a912
|
Leszek Koltunski
|
node.mParent = this;
|
364 |
|
|
mChildren.add(node);
|
365 |
|
|
mNumChildren[0]++;
|
366 |
|
|
|
367 |
|
|
RecomputeNodeID(prev);
|
368 |
fee0865c
|
Leszek Koltunski
|
|
369 |
6a06a912
|
Leszek Koltunski
|
return node;
|
370 |
|
|
}
|
371 |
|
|
|
372 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
373 |
|
|
/**
|
374 |
|
|
* Removes the first occurrence of a specified child from the list of children of our Node.
|
375 |
|
|
*
|
376 |
|
|
* @param node The Node to remove.
|
377 |
|
|
* @return <code>true</code> if the child was successfully removed.
|
378 |
|
|
*/
|
379 |
b455eb48
|
Leszek Koltunski
|
public synchronized boolean detach(DistortedObjectTree node)
|
380 |
6a06a912
|
Leszek Koltunski
|
{
|
381 |
|
|
if( mNumChildren[0]>0 )
|
382 |
|
|
{
|
383 |
|
|
ArrayList<Long> prev = generateIDList();
|
384 |
|
|
|
385 |
|
|
if( mChildren.remove(node) )
|
386 |
|
|
{
|
387 |
|
|
node.mParent = null;
|
388 |
|
|
mNumChildren[0]--;
|
389 |
|
|
|
390 |
|
|
RecomputeNodeID(prev);
|
391 |
|
|
|
392 |
|
|
return true;
|
393 |
|
|
}
|
394 |
|
|
}
|
395 |
|
|
|
396 |
|
|
return false;
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
400 |
|
|
/**
|
401 |
|
|
* Removes the first occurrence of a specified child from the list of children of our Node.
|
402 |
|
|
*
|
403 |
4e2382f3
|
Leszek Koltunski
|
* @param queues DistortedEffectQueues to remove.
|
404 |
6a06a912
|
Leszek Koltunski
|
* @return <code>true</code> if the child was successfully removed.
|
405 |
|
|
*/
|
406 |
4e2382f3
|
Leszek Koltunski
|
public synchronized boolean detach(DistortedEffectQueues queues)
|
407 |
6a06a912
|
Leszek Koltunski
|
{
|
408 |
4e2382f3
|
Leszek Koltunski
|
long id = queues.getID();
|
409 |
b455eb48
|
Leszek Koltunski
|
DistortedObjectTree node;
|
410 |
6a06a912
|
Leszek Koltunski
|
|
411 |
|
|
for(int i=0; i<mNumChildren[0]; i++)
|
412 |
|
|
{
|
413 |
|
|
node = mChildren.get(i);
|
414 |
|
|
|
415 |
4e2382f3
|
Leszek Koltunski
|
if( node.mQueues.getID()==id )
|
416 |
6a06a912
|
Leszek Koltunski
|
{
|
417 |
|
|
ArrayList<Long> prev = generateIDList();
|
418 |
|
|
|
419 |
|
|
node.mParent = null;
|
420 |
|
|
mChildren.remove(i);
|
421 |
|
|
mNumChildren[0]--;
|
422 |
|
|
|
423 |
|
|
RecomputeNodeID(prev);
|
424 |
|
|
|
425 |
|
|
return true;
|
426 |
|
|
}
|
427 |
|
|
}
|
428 |
|
|
|
429 |
|
|
return false;
|
430 |
|
|
}
|
431 |
|
|
|
432 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
433 |
|
|
/**
|
434 |
|
|
* Removes all children Nodes.
|
435 |
|
|
*/
|
436 |
|
|
public synchronized void detachAll()
|
437 |
|
|
{
|
438 |
|
|
for(int i=0; i<mNumChildren[0]; i++)
|
439 |
|
|
{
|
440 |
|
|
mChildren.get(i).mParent = null;
|
441 |
|
|
}
|
442 |
|
|
|
443 |
|
|
if( mNumChildren[0]>0 )
|
444 |
|
|
{
|
445 |
|
|
ArrayList<Long> prev = generateIDList();
|
446 |
|
|
|
447 |
|
|
mNumChildren[0] = 0;
|
448 |
|
|
mChildren.clear();
|
449 |
|
|
RecomputeNodeID(prev);
|
450 |
|
|
}
|
451 |
|
|
}
|
452 |
|
|
|
453 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
454 |
|
|
/**
|
455 |
|
|
* Draws the Node, and all its children, to the default framebuffer 0 (i.e. the screen).
|
456 |
6537ba91
|
Leszek Koltunski
|
* <p>
|
457 |
|
|
* Must be called from a thread holding OpenGL Context
|
458 |
|
|
*
|
459 |
6a06a912
|
Leszek Koltunski
|
* @param currTime Current time, in milliseconds.
|
460 |
|
|
*/
|
461 |
|
|
public void draw(long currTime)
|
462 |
|
|
{
|
463 |
|
|
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
|
464 |
ed13a5de
|
Leszek Koltunski
|
drawRecursive(currTime,Distorted.mFramebuffer);
|
465 |
1942537e
|
Leszek Koltunski
|
DistortedFramebuffer.deleteAllMarked();
|
466 |
|
|
DistortedTexture.deleteAllMarked();
|
467 |
6a06a912
|
Leszek Koltunski
|
}
|
468 |
d1e740c5
|
Leszek Koltunski
|
|
469 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
470 |
|
|
/**
|
471 |
|
|
* Draws the Node, and all its children, to the Framebuffer passed.
|
472 |
6537ba91
|
Leszek Koltunski
|
* <p>
|
473 |
|
|
* Must be called from a thread holding OpenGL Context
|
474 |
d1e740c5
|
Leszek Koltunski
|
*
|
475 |
|
|
* @param currTime Current time, in milliseconds.
|
476 |
|
|
* @param df Framebuffer to render this to.
|
477 |
|
|
*/
|
478 |
|
|
public void draw(long currTime, DistortedFramebuffer df)
|
479 |
|
|
{
|
480 |
7cf783cb
|
Leszek Koltunski
|
df.createFBO();
|
481 |
|
|
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, df.fboIds[0]);
|
482 |
d1e740c5
|
Leszek Koltunski
|
drawRecursive(currTime,df);
|
483 |
1942537e
|
Leszek Koltunski
|
DistortedFramebuffer.deleteAllMarked();
|
484 |
|
|
DistortedTexture.deleteAllMarked();
|
485 |
d1e740c5
|
Leszek Koltunski
|
}
|
486 |
|
|
|
487 |
6a06a912
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
488 |
|
|
/**
|
489 |
4e2382f3
|
Leszek Koltunski
|
* Returns the DistortedEffectQueues object that's in the Node.
|
490 |
6a06a912
|
Leszek Koltunski
|
*
|
491 |
4e2382f3
|
Leszek Koltunski
|
* @return The DistortedEffectQueues contained in the Node.
|
492 |
6a06a912
|
Leszek Koltunski
|
*/
|
493 |
4e2382f3
|
Leszek Koltunski
|
public DistortedEffectQueues getQueues()
|
494 |
6a06a912
|
Leszek Koltunski
|
{
|
495 |
4e2382f3
|
Leszek Koltunski
|
return mQueues;
|
496 |
|
|
}
|
497 |
|
|
|
498 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
499 |
|
|
/**
|
500 |
|
|
* Returns the DistortedTexture object that's in the Node.
|
501 |
|
|
*
|
502 |
|
|
* @return The DistortedTexture contained in the Node.
|
503 |
|
|
*/
|
504 |
|
|
public DistortedTexture getTexture()
|
505 |
|
|
{
|
506 |
|
|
return mTexture;
|
507 |
6a06a912
|
Leszek Koltunski
|
}
|
508 |
|
|
|
509 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
510 |
|
|
}
|