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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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46b572b5
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Leszek Koltunski
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// This file is part of Distorted. //
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226144d0
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leszek
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// //
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46b572b5
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Leszek Koltunski
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// Distorted is free software: you can redistribute it and/or modify //
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226144d0
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leszek
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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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Leszek Koltunski
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// Distorted is distributed in the hope that it will be useful, //
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leszek
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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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46b572b5
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Leszek Koltunski
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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226144d0
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leszek
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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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Leszek Koltunski
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import java.util.ArrayList;
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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 InternalObject
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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 final static Object mLock = new Object();
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private long mID;
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private int mType;
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/////////////////////////////////////////////////////////////////
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private static class Job
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{
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InternalObject object;
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int action;
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Job(InternalObject 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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/////////////////////////////////////////////////////////////////
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private static boolean mToDo = false;
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Leszek Koltunski
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private static StackFrame mCurrentFrame = null;
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private static ArrayList<StackFrame> mFrameList = new ArrayList<>();
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/////////////////////////////////////////////////////////////////
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d2039fdd
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Leszek Koltunski
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private static class StackFrame
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{
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private LinkedList<InternalObject> mDoneList;
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private HashMap<Long,Job> mToDoMap;
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private long mNextClientID;
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private long mNextSystemID;
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/////////////////////////////////////////////////////////
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StackFrame()
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{
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mDoneList = new LinkedList<>();
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mToDoMap = new HashMap<>();
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mNextClientID = 0;
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mNextSystemID = 0;
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}
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/////////////////////////////////////////////////////////
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void onPause()
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{
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int num = mDoneList.size();
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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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InternalObject object = mDoneList.removeFirst();
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Job job = new Job(object, JOB_CREATE);
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mToDoMap.put(object.mID,job);
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object.recreate();
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}
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}
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catch( Exception ignored )
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{
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// something else removed an object in the meantime; ignore
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}
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}
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/////////////////////////////////////////////////////////
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void toDo()
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{
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for(Long key: mToDoMap.keySet())
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{
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Job job = mToDoMap.get(key);
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InternalObject object = job.object;
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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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}
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/////////////////////////////////////////////////////////
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long generateID(int type)
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{
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return type==TYPE_SYST ? --mNextSystemID : ++mNextClientID;
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}
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/////////////////////////////////////////////////////////
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void addToDoneList(InternalObject obj)
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{
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mDoneList.add(obj);
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}
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/////////////////////////////////////////////////////////
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void markFor(InternalObject obj, long id, int jobType)
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{
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mDoneList.remove(obj);
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mToDoMap.put(id, new Job(obj,jobType) );
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}
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/////////////////////////////////////////////////////////
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void debugLists(String frameMarker)
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{
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android.util.Log.e("Object", frameMarker);
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android.util.Log.e("Object", " Done list:");
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for(InternalObject object : mDoneList)
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{
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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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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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d2039fdd
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Leszek Koltunski
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static boolean toDo()
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{
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if( mToDo )
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{
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9519d1b1
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Leszek Koltunski
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mToDo = false;
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226144d0
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leszek
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9519d1b1
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Leszek Koltunski
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synchronized(mLock)
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{
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9519d1b1
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mCurrentFrame.toDo();
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}
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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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9519d1b1
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Leszek Koltunski
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static void onCreate()
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leszek
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{
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9519d1b1
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Leszek Koltunski
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synchronized(mLock)
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040cd18c
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{
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9519d1b1
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mCurrentFrame = new StackFrame();
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mFrameList.add(mCurrentFrame);
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mToDo = false;
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040cd18c
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Leszek Koltunski
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}
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9519d1b1
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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226144d0
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leszek
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9519d1b1
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Leszek Koltunski
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static void onPause()
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{
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synchronized(mLock)
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{
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mCurrentFrame.onPause();
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mToDo = true;
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}
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226144d0
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leszek
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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d2039fdd
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Leszek Koltunski
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static void onDestroy()
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| 239 |
226144d0
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leszek
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{
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| 240 |
9519d1b1
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Leszek Koltunski
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synchronized(mLock)
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| 241 |
d2039fdd
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Leszek Koltunski
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{
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| 242 |
9519d1b1
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Leszek Koltunski
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int num = mFrameList.size();
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if( num>0 )
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| 245 |
d2039fdd
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Leszek Koltunski
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{
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| 246 |
9519d1b1
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Leszek Koltunski
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mFrameList.remove(num-1);
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226144d0
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leszek
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| 248 |
9519d1b1
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Leszek Koltunski
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if( num>1 )
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{
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mCurrentFrame = mFrameList.get(num-2);
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mToDo = true;
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}
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else
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| 254 |
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{
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| 255 |
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mCurrentFrame = null;
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| 256 |
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mToDo = false;
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}
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| 258 |
d2039fdd
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Leszek Koltunski
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}
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| 259 |
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}
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| 260 |
226144d0
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leszek
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 264 |
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@SuppressWarnings("unused")
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| 265 |
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static void debugLists()
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| 266 |
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{
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| 267 |
9519d1b1
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Leszek Koltunski
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int num = mFrameList.size();
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| 268 |
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StackFrame frame;
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| 269 |
226144d0
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leszek
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| 270 |
9519d1b1
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Leszek Koltunski
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for(int i=0; i<num; i++)
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| 271 |
226144d0
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leszek
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{
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| 272 |
9519d1b1
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Leszek Koltunski
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frame = mFrameList.get(i);
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| 273 |
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frame.debugLists("frame "+i);
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| 274 |
226144d0
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leszek
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}
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| 275 |
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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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| 281 |
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String str = "ID:"+mID;
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| 282 |
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| 283 |
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switch(mType)
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| 284 |
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{
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| 285 |
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case TYPE_SYST: str+=" SYSTEM "; break;
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| 286 |
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case TYPE_USER: str+=" USER "; break;
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| 287 |
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case TYPE_TREE: str+=" TREE "; break;
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| 288 |
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default : str+=" ERROR? ";
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| 289 |
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}
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| 290 |
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| 291 |
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android.util.Log.e("Object", str+printDetails()+msg);
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| 292 |
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}
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| 293 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 295 |
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| 296 |
7602a827
|
Leszek Koltunski
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InternalObject(int type)
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| 297 |
226144d0
|
leszek
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{
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| 298 |
9519d1b1
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Leszek Koltunski
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if( mCurrentFrame==null ) onCreate();
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| 299 |
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mID = mCurrentFrame.generateID(type);
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| 301 |
226144d0
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leszek
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mType= type;
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| 302 |
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}
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| 303 |
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| 304 |
22e60fba
|
Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 305 |
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| 306 |
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void markWasCreatedImmediately()
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| 307 |
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{
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| 308 |
9519d1b1
|
Leszek Koltunski
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mCurrentFrame.addToDoneList(this);
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| 309 |
22e60fba
|
Leszek Koltunski
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}
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| 310 |
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| 311 |
226144d0
|
leszek
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///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 312 |
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| 313 |
d2039fdd
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Leszek Koltunski
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void markForCreation()
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| 314 |
226144d0
|
leszek
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{
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| 315 |
9519d1b1
|
Leszek Koltunski
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synchronized(mLock)
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| 316 |
d2039fdd
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Leszek Koltunski
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{
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| 317 |
9519d1b1
|
Leszek Koltunski
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mCurrentFrame.markFor(this,mID,JOB_CREATE);
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| 318 |
d2039fdd
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Leszek Koltunski
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mToDo = true;
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| 319 |
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}
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| 320 |
226144d0
|
leszek
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}
|
| 321 |
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| 322 |
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 323 |
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// PUBLIC API
|
| 324 |
|
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///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 325 |
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/**
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| 326 |
|
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* Mark the underlying OpenGL object for deletion. Actual deletion will take place on the next render.
|
| 327 |
|
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*/
|
| 328 |
d2039fdd
|
Leszek Koltunski
|
public void markForDeletion()
|
| 329 |
226144d0
|
leszek
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{
|
| 330 |
9519d1b1
|
Leszek Koltunski
|
synchronized(mLock)
|
| 331 |
d2039fdd
|
Leszek Koltunski
|
{
|
| 332 |
9519d1b1
|
Leszek Koltunski
|
mCurrentFrame.markFor(this,mID,JOB_DELETE);
|
| 333 |
d2039fdd
|
Leszek Koltunski
|
mToDo = true;
|
| 334 |
|
|
}
|
| 335 |
226144d0
|
leszek
|
}
|
| 336 |
|
|
|
| 337 |
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
| 338 |
|
|
/**
|
| 339 |
|
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* Return unique ID of this Object.
|
| 340 |
|
|
*/
|
| 341 |
|
|
public long getID()
|
| 342 |
|
|
{
|
| 343 |
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|
return mID;
|
| 344 |
|
|
}
|
| 345 |
|
|
}
|