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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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package org.distorted.library.main;
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import org.distorted.library.effect.Effect;
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import org.distorted.library.effect.EffectName;
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import org.distorted.library.effect.EffectType;
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import org.distorted.library.message.EffectListener;
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import org.distorted.library.message.EffectMessage;
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import org.distorted.library.message.EffectMessageSender;
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import java.util.ArrayList;
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import java.util.HashMap;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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abstract class EffectQueue implements DistortedMaster.Slave
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{
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private static final int CREATE = 0;
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private static final int ATTACH = 1;
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private static final int DETACH = 2;
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private static final int DETALL = 3;
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int mNumEffects; // 'ToBe' will be more than mNumEffects if doWork() hasn't
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int mNumEffectsToBe; // added them yet (or less if it hasn't removed some yet)
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float[] mUniforms;
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long[] mCurrentDuration;
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Effect[] mEffects;
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int[] mName;
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long mTime=0;
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ArrayList<EffectListener> mListeners =null;
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int mNumListeners=0; // ==mListeners.length(), but we only create mListeners if the first one gets added
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long mDistortedEffectsID;
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private static int[] mMax = new int[EffectType.LENGTH];
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private static long mNextID;
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private static HashMap<ArrayList<Long>,Long> mMapID = new HashMap<>(); // maps lists of Effect IDs (longs) to a
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// single long - the queue ID.
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private ArrayList<DistortedNode> mNodes = null;
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private long mID;
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private int mIndex;
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private boolean mCreated;
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private class Job
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{
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int type;
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int num;
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boolean notify;
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Effect effect;
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Job(int t, int m, boolean n, Effect e)
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{
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type = t;
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num = m;
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notify= n;
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effect= e;
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}
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}
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private ArrayList<Job> mJobs = new ArrayList<>();
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static
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{
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onDestroy();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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EffectQueue(long id, int numUniforms, int index)
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{
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mCreated = false;
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mID = 0;
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mNumEffects = 0;
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mNumEffectsToBe = 0;
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mDistortedEffectsID = id;
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mIndex = index;
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mJobs.add(new Job(CREATE,numUniforms,false,null)); // create the stuff that depends on max number
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DistortedMaster.newSlave(this); // of uniforms later, on first render.
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Every effect queue has an ID, which should be the same iff two queues hold the same effects.
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// (this is a speedup: then both queues can be applied once, which seriously speeds up stuff -
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// especially important in case of postprocessing)
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void regenerateIDandSort()
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{
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if( mNumEffects>0 )
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{
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ArrayList<Long> list = new ArrayList<>();
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for (int i = 0; i < mNumEffects; i++) list.add(mEffects[i].getID());
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Long id = mMapID.get(list);
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if( id!=null )
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{
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mID = id;
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}
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else
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{
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mMapID.put(list,mNextID);
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mID = mNextID++;
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}
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}
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else
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{
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mID = 0;
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}
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int numNodes = (mNodes==null ? 0: mNodes.size());
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for(int i=0; i<numNodes; i++) mNodes.get(i).sort();
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/*
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if( mIndex == EffectType.MATRIX.ordinal() )
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android.util.Log.d("queue", "queueM id="+mID);
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if( mIndex == EffectType.VERTEX.ordinal() )
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android.util.Log.d("queue", "queueV id="+mID);
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if( mIndex == EffectType.FRAGMENT.ordinal() )
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android.util.Log.d("queue", "queueF id="+mID);
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if( mIndex == EffectType.POSTPROCESS.ordinal() )
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android.util.Log.d("queue", "queueP id="+mID);
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*/
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void newNode(DistortedNode node)
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{
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if( mNodes==null ) mNodes = new ArrayList<>();
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mNodes.add(node);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void removeNode(DistortedNode node)
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{
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mNodes.remove(node);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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@SuppressWarnings("unused")
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int getNumEffects()
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{
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return mNumEffects;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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long getID()
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{
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return mID;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static boolean setMax(int index, int m)
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{
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if( !Distorted.isInitialized() || m<=mMax[index] )
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{
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mMax[index] = m<0 ? 0:m;
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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 int getMax(int index)
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{
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return mMax[index];
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void registerForMessages(EffectListener el)
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{
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if( mListeners==null ) mListeners = new ArrayList<>();
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if( !mListeners.contains(el) )
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{
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mListeners.add(el);
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mNumListeners++;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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void deregisterForMessages(EffectListener el)
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{
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if( mListeners.remove(el) )
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{
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mNumListeners--;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static void onDestroy()
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{
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mNextID = 1;
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mMapID.clear();
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EffectType.reset(mMax);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// this assumes 0<=effect<mNumEffects
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protected void remove(int effect)
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{
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mNumEffects--;
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long removedID = mEffects[effect].getID();
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for(int j=effect; j<mNumEffects; j++ )
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{
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mEffects[j] = mEffects[j+1];
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mCurrentDuration[j] = mCurrentDuration[j+1];
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mName[j] = mName[j+1];
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}
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mEffects[mNumEffects] = null;
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for(int i=0; i<mNumListeners; i++)
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EffectMessageSender.newMessage( mListeners.get(i), EffectMessage.EFFECT_REMOVED, removedID, mDistortedEffectsID);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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synchronized int removeByName(EffectName name)
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{
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int ret = 0;
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for(int i=0; i<mNumEffects; i++)
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{
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if( mEffects[i].getName() == name )
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{
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mJobs.add(new Job(DETACH,0,true,mEffects[i]));
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ret++;
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}
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}
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if( ret>0 )
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{
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DistortedMaster.newSlave(this);
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mNumEffectsToBe-=ret;
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}
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return ret;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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synchronized int removeById(long id)
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{
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for(int i=0; i<mNumEffects; i++)
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{
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if( mEffects[i].getID() == id )
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{
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mJobs.add(new Job(DETACH,0,true,mEffects[i]));
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DistortedMaster.newSlave(this);
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mNumEffectsToBe--;
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return 1;
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}
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}
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return 0;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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synchronized int removeEffect(Effect effect)
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{
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for(int i=0; i<mNumEffects; i++)
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{
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if( mEffects[i]==effect )
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{
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mJobs.add(new Job(DETACH,0,true,mEffects[i]));
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DistortedMaster.newSlave(this);
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mNumEffectsToBe--;
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return 1;
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}
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}
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return 0;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// we do want to notify Listeners if they called 'abortAll' themselves but don't want to notify
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// them if it is the library itself which is releasing resources.
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synchronized int abortAll(boolean notify)
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{
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mJobs.add(new Job(DETALL,0,notify,null));
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DistortedMaster.newSlave(this);
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mNumEffectsToBe = 0;
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return mNumEffects;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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boolean add(Effect effect)
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{
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if( mMax[mIndex]>mNumEffectsToBe || !mCreated )
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{
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mJobs.add(new Job(ATTACH,0,false,effect));
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DistortedMaster.newSlave(this);
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mNumEffectsToBe++;
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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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/**
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* This is not really part of the public API. Has to be public only because it is a part of the
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* DistortedSlave interface, which should really be a class that we extend here instead but
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* Java has no multiple inheritance.
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*
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* @y.exclude
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*/
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public void doWork()
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{
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int num = mJobs.size();
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Job job;
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for(int i=0; i<num; i++)
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{
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job = mJobs.remove(0);
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switch(job.type)
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{
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case CREATE: int max = mMax[mIndex];
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if( max>0 )
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{
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mUniforms = new float[max*job.num];
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mCurrentDuration = new long[max];
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mEffects = new Effect[max];
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mName = new int[max];
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}
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mCreated = true;
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break;
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case ATTACH: if( mMax[mIndex]>mNumEffects ) // it is possible that we have first
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{ // added effects and then lowered mMax
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mCurrentDuration[mNumEffects] = 0;
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mEffects[mNumEffects] = job.effect;
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mName[mNumEffects] = job.effect.getName().ordinal();
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mNumEffects++;
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}
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else
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{
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android.util.Log.e("queue", "failed to add effect "+job.effect.getName());
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}
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break;
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case DETACH: for(int j=0; j<mNumEffects; j++)
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{
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if (mEffects[j] == job.effect)
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{
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remove(j);
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break;
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}
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}
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break;
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case DETALL: for(int j=0; j<mNumEffects; j++ )
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{
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if( job.notify )
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{
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for(int k=0; k<mNumListeners; k++)
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EffectMessageSender.newMessage( mListeners.get(k), EffectMessage.EFFECT_REMOVED, mEffects[j].getID(), mDistortedEffectsID);
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}
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mEffects[j] = null;
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}
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mNumEffects= 0;
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break;
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}
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}
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if( num>0 && mIndex==EffectType.POSTPROCESS.ordinal() ) regenerateIDandSort();
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}
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}
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