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226144d0
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leszek
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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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fe82a979
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Leszek Koltunski
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package org.distorted.library.main;
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226144d0
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leszek
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import java.util.HashMap;
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import java.util.LinkedList;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Any Object which gets uploaded to GPU memory and thus needs to be re-created (transparently to
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* applications!) whenever we lose OpenGL context.
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*
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* Keep all objects created in a static LinkedList. The point: we need to be able to mark
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* Objects for deletion, and delete all marked Objects later at a convenient time (that's
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* because we can only delete from a thread that holds the OpenGL context so here we provide a
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* framework where one is able to mark for deletion at any time and actual deletion takes place
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* on the next render).
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*/
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abstract class DistortedObject
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{
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static final int FAILED_TO_CREATE = 1;
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static final int NOT_CREATED_YET = 2;
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static final int DONT_CREATE = 3;
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static final int CREATED = 4;
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static final int TYPE_USER = 0;
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static final int TYPE_TREE = 1;
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static final int TYPE_SYST = 2;
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private static final int JOB_CREATE = 0;
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private static final int JOB_DELETE = 1;
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private class Job
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{
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DistortedObject object;
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int action;
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Job(DistortedObject o, int a)
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{
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object = o;
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action = a;
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}
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}
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private static boolean mToDo = false;
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private static LinkedList<DistortedObject> mDoneList = new LinkedList<>();
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private static HashMap<Long,Job> mToDoMap = new HashMap<>();
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private static long mNextClientID = 0;
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private static long mNextSystemID = 0;
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private long mID;
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13981586
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Leszek Koltunski
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private int mType;
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226144d0
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leszek
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///////////////////////////////////////////////////////////////////////////////////////////////////
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abstract void create();
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abstract void delete();
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abstract void recreate();
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abstract String printDetails();
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// must be called from a thread holding OpenGL Context
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static synchronized boolean toDo()
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{
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if( mToDo )
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{
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Job job;
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DistortedObject object;
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for(Long key: mToDoMap.keySet())
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{
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job = mToDoMap.get(key);
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object = job.object;
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//android.util.Log.d("Object", object.getClass().getSimpleName()+" ---> need to "
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fe6fe99a
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leszek
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// +(job.action==JOB_CREATE ? "create":"delete")+" objectID="+object.mDistortedEffectsID );
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226144d0
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leszek
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if( job.action==JOB_CREATE )
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{
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object.create();
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mDoneList.add(object);
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}
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else if( job.action==JOB_DELETE )
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{
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object.delete();
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}
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}
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mToDoMap.clear();
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mToDo = false;
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return true;
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}
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return false;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static synchronized void onPause()
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{
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DistortedObject object;
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int num = mDoneList.size();
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040cd18c
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Leszek Koltunski
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try
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{
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for (int i = 0; i < num; i++)
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{
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object = mDoneList.removeFirst();
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mToDoMap.put(object.mID, object.new Job(object, JOB_CREATE));
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object.recreate();
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}
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}
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catch( Exception ex )
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226144d0
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leszek
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{
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040cd18c
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Leszek Koltunski
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// something else removed an object in the meantime; ignore
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226144d0
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leszek
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}
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mToDo = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static synchronized void onDestroy()
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{
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mToDoMap.clear();
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mDoneList.clear();
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mToDo = true;
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mNextClientID = 0;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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@SuppressWarnings("unused")
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static void debugLists()
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{
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android.util.Log.e("Object", "Done list:");
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DistortedObject object;
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int num = mDoneList.size();
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for(int i=0; i<num; i++)
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{
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object = mDoneList.get(i);
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object.print("");
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}
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android.util.Log.e("Object", "ToDo list:");
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Job job;
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for(Long key: mToDoMap.keySet())
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{
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job = mToDoMap.get(key);
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job.object.print(job.action==JOB_CREATE ? " create":" delete");
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private void print(String msg)
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{
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String str = "ID:"+mID;
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switch(mType)
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{
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case TYPE_SYST: str+=" SYSTEM "; break;
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case TYPE_USER: str+=" USER "; break;
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case TYPE_TREE: str+=" TREE "; break;
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default : str+=" ERROR? ";
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}
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android.util.Log.e("Object", str+printDetails()+msg);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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DistortedObject(int create, int type)
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{
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mID = type==TYPE_SYST ? --mNextSystemID : ++mNextClientID;
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mType= type;
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if( create!=DONT_CREATE )
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{
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mToDoMap.put(mID, new Job(this,JOB_CREATE) );
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mToDo = true;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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synchronized void markForCreation()
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{
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mDoneList.remove(this);
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mToDoMap.put(mID, new Job(this,JOB_CREATE) );
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mToDo = true;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Mark the underlying OpenGL object for deletion. Actual deletion will take place on the next render.
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*/
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synchronized public void markForDeletion()
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{
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mDoneList.remove(this);
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mToDoMap.put(mID, new Job(this,JOB_DELETE) );
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mToDo = true;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Return unique ID of this Object.
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*/
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public long getID()
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{
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return mID;
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}
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}
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