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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.effect;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Names of Effects one can add to the DistortedEffects queues.
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* <p>
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* Effect's 'Type' is one of the constants defined in {@link EffectType}.
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* </p>
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* <p>
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* Effect's 'Uniforms' are a vector of 7 (matrix effects) 12 (vertex) or 8 (fragment) floats, which
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* together form full information how to compute a given effect.
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* Typically, some of those values will be Interpolated in CPU (by one of the 'EffectQueueX.compute()'
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* methods) and the effect of such Interpolation sent to the Shaders.
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* </p>
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* <p>
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* Effect's 'Unity' is such a particular vector of its 'interpolated values' which makes the
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* effect NULL. For example, if the effect is 'MOVE' by a 3-dimensional vector, then a 'NULL
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* MOVE' is a MOVE by vector (0,0,0), thus (0,0,0) is the unity of the MOVE effect.
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* This is used by the EffectQueue classes to decide if the final form of the Effect is NULL - and
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* thus if it can safely be removed from Effect Queues without affecting the visual in any way.
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* </p>
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*/
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public enum EffectName
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{
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// EFFECT NAME /////// EFFECT TYPE ////////// EFFECT UNITY //////////// DIM REGION CENTER
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ROTATE ( EffectType.MATRIX , new float[] {0.0f} , 4, false, true ),
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QUATERNION ( EffectType.MATRIX , new float[] {0.0f,0.0f,0.0f} , 4, false, true ),
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MOVE ( EffectType.MATRIX , new float[] {0.0f,0.0f,0.0f} , 3, false, false ),
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SCALE ( EffectType.MATRIX , new float[] {1.0f,1.0f,1.0f} , 3, false, false ),
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SHEAR ( EffectType.MATRIX , new float[] {0.0f,0.0f,0.0f} , 3, false, true ),
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DISTORT ( EffectType.VERTEX , new float[] {0.0f,0.0f,0.0f} , 3, true , true ),
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DEFORM ( EffectType.VERTEX , new float[] {0.0f,0.0f,0.0f} , 3, true , true ),
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SINK ( EffectType.VERTEX , new float[] {1.0f} , 1, true , true ),
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PINCH ( EffectType.VERTEX , new float[] {1.0f} , 2, true , true ),
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SWIRL ( EffectType.VERTEX , new float[] {0.0f} , 1, true , true ),
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WAVE ( EffectType.VERTEX , new float[] {0.0f} , 5, true , true ),
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ALPHA ( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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SMOOTH_ALPHA ( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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CHROMA ( EffectType.FRAGMENT, new float[] {0.0f} , 4, true , false ),
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SMOOTH_CHROMA ( EffectType.FRAGMENT, new float[] {0.0f} , 4, true , false ),
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BRIGHTNESS ( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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SMOOTH_BRIGHTNESS( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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SATURATION ( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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SMOOTH_SATURATION( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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CONTRAST ( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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SMOOTH_CONTRAST ( EffectType.FRAGMENT, new float[] {1.0f} , 1, true , false ),
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BLUR ( EffectType.POSTPROCESS,new float[] {0.0f} , 1, false, false ),
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GLOW ( EffectType.POSTPROCESS,new float[] {0.0f} , 4, false, false );
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///////////////////////////////////////////////////////////////////////////////////////////////////
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private static final int MAXDIM = 4; // maximum supported dimension of effect's unity
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public static final int LENGTH = values().length;
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private final EffectType type;
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private final float[] unity;
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private final int dimension;
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private final boolean supportsR;
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private final boolean supportsC;
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private static final float[] unities;
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private static final int[] unityDimensions;
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private static final int[] dimensions;
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private static final boolean[] supportsRegion;
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private static final boolean[] supportsCenter;
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private static final EffectName[] names; // copy the values() to a local variable so that we
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// don't have to keep recreating the array every time
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static
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{
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int i=0;
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unities = new float[MAXDIM*LENGTH];
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unityDimensions = new int[LENGTH];
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dimensions = new int[LENGTH];
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supportsRegion = new boolean[LENGTH];
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supportsCenter = new boolean[LENGTH];
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names = new EffectName[LENGTH];
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for(EffectName name: EffectName.values())
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{
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unityDimensions[i] = (name.unity==null ? 0 : name.unity.length);
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dimensions[i] = name.dimension;
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supportsRegion[i] = name.supportsR;
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supportsCenter[i] = name.supportsC;
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names[i] = name;
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switch(unityDimensions[i])
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{
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case 4: unities[MAXDIM*i+3] = name.unity[3];
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case 3: unities[MAXDIM*i+2] = name.unity[2];
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case 2: unities[MAXDIM*i+1] = name.unity[1];
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case 1: unities[MAXDIM*i ] = name.unity[0];
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case 0: break;
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}
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i++;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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float[] getUnity()
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{
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return unity;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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EffectName(EffectType type, float[] unity, int dimension, boolean supportsR, boolean supportsC)
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{
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this.type = type;
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this.unity = unity;
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this.dimension = dimension;
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this.supportsR = supportsR;
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this.supportsC = supportsC;
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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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* Returns the Type of an individual Effect. For example, EffectName.ROTATION.getType() will
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* return EffectType.MATRIX.
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* @return type of the effect.
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*/
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public EffectType getType()
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{
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return type;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Returns the i-th EffectName.
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* <p>
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* If you want to loop over all possible Effects, you need this.
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*/
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public static EffectName getName(int ordinal)
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{
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return names[ordinal];
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Returns the dimension of an Effect (in other words, the number of interpolated values).
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* @return dimension of the Effect.
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*/
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public int getDimension() { return dimensions[ordinal()]; }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Do we support being masked by a Region?
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* @return true if the Effect supports being masked with a Region.
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*/
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public boolean supportsRegion() { return supportsRegion[ordinal()]; }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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* Does this Effect have a center?
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* @return true if the Effect has a center.
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*/
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public boolean supportsCenter() { return supportsCenter[ordinal()]; }
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}
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