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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski leszek@koltunski.pl //
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// //
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// This file is part of Distorted. //
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// //
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// This library is free software; you can redistribute it and/or //
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// modify it under the terms of the GNU Lesser General Public //
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// License as published by the Free Software Foundation; either //
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// version 2.1 of the License, or (at your option) any later version. //
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// //
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// This library 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 GNU //
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// Lesser General Public License for more details. //
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// //
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// You should have received a copy of the GNU Lesser General Public //
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// License along with this library; if not, write to the Free Software //
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.library.main;
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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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static final int STORAGE_COMMON = 0;
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static final int STORAGE_PRIVATE = 1;
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static final int JOB_CREATE = 0;
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static final int JOB_DELETE = 1;
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private final long mID;
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private final int mType;
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private final int mStorage;
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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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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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InternalObject(int type, int storage)
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{
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mType = type;
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mStorage = storage;
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mID = InternalStackFrameList.getCurrentFrame().generateID(mType,mStorage);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void markWasCreatedImmediately()
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{
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InternalStackFrameList.getCurrentFrame().addToDoneList(this,mStorage);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void markForCreation()
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{
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InternalStackFrameList.markFor(this,mID,mStorage,JOB_CREATE);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void removeFromDone()
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{
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InternalStackFrameList.removeFromDone(this,mStorage);
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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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public void markForDeletion()
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{
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InternalStackFrameList.markFor(this,mID,mStorage,JOB_DELETE);
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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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