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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 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.effect;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Abstract Effect of any type.
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*/
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public abstract class Effect
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{
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private final static int MAX_UNITY_DIM = 4;
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private final static int NUM_EFFECTS = EffectName.LENGTH;
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private final long mID;
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private final EffectType mType;
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private final EffectName mName;
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private final int mDimension;
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private final boolean mSupportsR;
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private final boolean mSupportsC;
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private static long mNextID = 0;
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private final static float[] mUnity= new float[MAX_UNITY_DIM*NUM_EFFECTS];
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private final static int[] mUnityDim = new int[NUM_EFFECTS];
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static boolean[] mEnabled = new boolean[NUM_EFFECTS];
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static
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{
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for(int i=0; i<NUM_EFFECTS; i++) mEnabled[i] = false;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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Effect(EffectName name)
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{
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mName = name;
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mType = name.getType();
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mDimension = name.getDimension();
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mSupportsC = name.supportsCenter();
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mSupportsR = name.supportsRegion();
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int n = name.ordinal();
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float[] u = name.getUnity();
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int l = u.length;
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for(int i=0; i<l; i++)
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{
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mUnity[n*MAX_UNITY_DIM+i] = u[i];
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}
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mUnityDim[n] = l;
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mID = ((mNextID++)<<EffectType.LENGTH) + mType.ordinal();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Only for use by the library itself.
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*
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* @y.exclude
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*/
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public static void onDestroy()
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{
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mNextID = 0;
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for(int i=0; i<NUM_EFFECTS; i++) mEnabled[i] = false;
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MatrixEffect.destroyStatics();
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VertexEffect.destroyStatics();
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PostprocessEffect.destroyStatics();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Only for use by the library itself.
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*
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* @y.exclude
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*/
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public abstract boolean compute(float[] uniforms, int index, long currentDuration, long step );
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Do the set of Uniforms written in buffer[index], buffer[index+1], etc represent a Unity, i.e a
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* null Effect?
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*/
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public boolean isUnity(float[] buffer, int index)
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{
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int name = mName.ordinal();
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switch(mUnityDim[name])
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{
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case 0: return true;
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case 1: return buffer[index ]==mUnity[MAX_UNITY_DIM*name ];
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case 2: return buffer[index ]==mUnity[MAX_UNITY_DIM*name ] &&
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buffer[index+1]==mUnity[MAX_UNITY_DIM*name+1];
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case 3: return buffer[index ]==mUnity[MAX_UNITY_DIM*name ] &&
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buffer[index+1]==mUnity[MAX_UNITY_DIM*name+1] &&
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buffer[index+2]==mUnity[MAX_UNITY_DIM*name+2];
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case 4: return buffer[index ]==mUnity[MAX_UNITY_DIM*name ] &&
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buffer[index+1]==mUnity[MAX_UNITY_DIM*name+1] &&
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buffer[index+2]==mUnity[MAX_UNITY_DIM*name+2] &&
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buffer[index+3]==mUnity[MAX_UNITY_DIM*name+3];
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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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* Return the EffectType enum corresponding to this Effect.
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*
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* @see EffectType
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*/
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public EffectType getType()
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{
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return mType;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Return the EffectName enum corresponding to this Effect.
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*
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* @see EffectName
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*/
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public EffectName getName()
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{
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return mName;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Return the unique ID of this Effect.
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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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/**
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* Return a printable name of this Effect.
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*/
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public String getString()
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{
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return mName.name();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Does this effect have a Center?
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*/
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public boolean supportsCenter()
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{
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return mSupportsC;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Does this effect support being masked by a Region?
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*/
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public boolean supportsRegion()
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{
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return mSupportsR;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Return the number of Uniforms needed to describe this effect.
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*/
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public int getDimension()
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{
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return mDimension;
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}
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}
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