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library / src / main / java / org / distorted / library / main / DistortedEffects.java @ c25273e0

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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 android.content.res.Resources;
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import android.opengl.GLES31;
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import android.util.Log;
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import org.distorted.library.R;
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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.effect.FragmentEffect;
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import org.distorted.library.effect.VertexEffect;
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import org.distorted.library.message.EffectListener;
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import org.distorted.library.program.DistortedProgram;
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import java.io.InputStream;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.FloatBuffer;
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import java.nio.IntBuffer;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Class containing Matrix, Vertex, Fragment and Postprocessing effect queues.
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 * <p>
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 * The queues hold actual effects to be applied to a given (InputSurface,MeshObject) combo.
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 */
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public class DistortedEffects
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  {
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  /// MAIN PROGRAM ///
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  private static DistortedProgram mMainProgram;
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  private static int mMainTextureH;
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  /// BLIT PROGRAM ///
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  private static DistortedProgram mBlitProgram;
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  private static int mBlitTextureH;
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  private static int mBlitDepthH;
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  private static final FloatBuffer mQuadPositions;
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  static
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    {
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    float[] positionData= { -0.5f, -0.5f,  -0.5f, 0.5f,  0.5f,-0.5f,  0.5f, 0.5f };
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    mQuadPositions = ByteBuffer.allocateDirect(32).order(ByteOrder.nativeOrder()).asFloatBuffer();
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    mQuadPositions.put(positionData).position(0);
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    }
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  /// BLIT DEPTH PROGRAM ///
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  private static DistortedProgram mBlitDepthProgram;
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  private static int mBlitDepthTextureH;
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  private static int mBlitDepthDepthTextureH;
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  private static int mBlitDepthDepthH;
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  private static int mBlitDepthTexCorrH;
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  /// OIT SSBO BUFFER ///
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  private static int[] mLinkedListSSBO = new int[1];
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  private static int[] mAtomicCounter = new int[1];
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  static
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    {
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    mLinkedListSSBO[0]= -1;
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    mAtomicCounter[0] = -1;
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    }
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  ///////////////////////////////////////////////////////////////
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  // this has to be at least as big as the number of pixels in
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  // the screen, lest the oitClear() pass overwrite memory.
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  private static int mBufferSize=(0x1<<23);  // 8 million entries
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  /// OIT CLEAR PROGRAM ///
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  private static DistortedProgram mOITClearProgram;
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  private static int mOITClearDepthH;
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  private static int mOITClearTexCorrH;
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  private static int mOITClearSizeH;
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  /// OIT BUILD PROGRAM ///
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  private static DistortedProgram mOITBuildProgram;
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  private static int mOITBuildTextureH;
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  private static int mOITBuildDepthTextureH;
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  private static int mOITBuildDepthH;
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  private static int mOITBuildTexCorrH;
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  private static int mOITBuildSizeH;
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  private static int mOITBuildNumRecordsH;
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  /// OIT COLLAPSE PROGRAM ///
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  private static DistortedProgram mOITCollapseProgram;
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  private static int mOITCollapseDepthTextureH;
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  private static int mOITCollapseDepthH;
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  private static int mOITCollapseTexCorrH;
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  private static int mOITCollapseSizeH;
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  /// OIT RENDER PROGRAM ///
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  private static DistortedProgram mOITRenderProgram;
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  private static int mOITRenderDepthH;
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  private static int mOITRenderTexCorrH;
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  private static int mOITRenderSizeH;
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  /// NORMAL PROGRAM /////
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  private static DistortedProgram mNormalProgram;
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  private static int mNormalMVPMatrixH;
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  /// END PROGRAMS //////
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  private static long mNextID =0;
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  private long mID;
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  private EffectQueueMatrix mM;
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  private EffectQueueFragment mF;
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  private EffectQueueVertex mV;
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  private EffectQueuePostprocess mP;
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  private boolean matrixCloned, vertexCloned, fragmentCloned, postprocessCloned;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  static void createPrograms(Resources resources)
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    {
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    // MAIN PROGRAM ////////////////////////////////////
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    final InputStream mainVertStream = resources.openRawResource(R.raw.main_vertex_shader);
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    final InputStream mainFragStream = resources.openRawResource(R.raw.main_fragment_shader);
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    int numF = FragmentEffect.getNumEnabled();
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    int numV = VertexEffect.getNumEnabled();
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    String mainVertHeader= Distorted.GLSL_VERSION + ("#define NUM_VERTEX "   + ( numV>0 ? getMax(EffectType.VERTEX  ) : 0 ) + "\n");
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    String mainFragHeader= Distorted.GLSL_VERSION + ("#define NUM_FRAGMENT " + ( numF>0 ? getMax(EffectType.FRAGMENT) : 0 ) + "\n");
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    String enabledEffectV= VertexEffect.getGLSL();
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    String enabledEffectF= FragmentEffect.getGLSL();
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    //android.util.Log.e("Effects", "vertHeader= "+mainVertHeader);
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    //android.util.Log.e("Effects", "fragHeader= "+mainFragHeader);
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    //android.util.Log.e("Effects", "enabledV= "+enabledEffectV);
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    //android.util.Log.e("Effects", "enabledF= "+enabledEffectF);
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    String[] feedback = { "v_Position", "v_endPosition" };
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    try
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      {
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      mMainProgram = new DistortedProgram(mainVertStream, mainFragStream, mainVertHeader, mainFragHeader,
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                                          enabledEffectV, enabledEffectF, Distorted.GLSL, feedback);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile MAIN program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int mainProgramH = mMainProgram.getProgramHandle();
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    EffectQueueFragment.getUniforms(mainProgramH);
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    EffectQueueVertex.getUniforms(mainProgramH);
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    EffectQueueMatrix.getUniforms(mainProgramH);
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    mMainTextureH= GLES31.glGetUniformLocation( mainProgramH, "u_Texture");
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    // BLIT PROGRAM ////////////////////////////////////
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    final InputStream blitVertStream = resources.openRawResource(R.raw.blit_vertex_shader);
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    final InputStream blitFragStream = resources.openRawResource(R.raw.blit_fragment_shader);
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    try
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      {
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      mBlitProgram = new DistortedProgram(blitVertStream,blitFragStream,Distorted.GLSL_VERSION,Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile BLIT program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int blitProgramH = mBlitProgram.getProgramHandle();
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    mBlitTextureH  = GLES31.glGetUniformLocation( blitProgramH, "u_Texture");
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    mBlitDepthH    = GLES31.glGetUniformLocation( blitProgramH, "u_Depth");
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    // BLIT DEPTH PROGRAM ////////////////////////////////////
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    final InputStream blitDepthVertStream = resources.openRawResource(R.raw.blit_depth_vertex_shader);
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    final InputStream blitDepthFragStream = resources.openRawResource(R.raw.blit_depth_fragment_shader);
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    try
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      {
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      mBlitDepthProgram = new DistortedProgram(blitDepthVertStream,blitDepthFragStream,Distorted.GLSL_VERSION,Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile BLIT DEPTH program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int blitDepthProgramH   = mBlitDepthProgram.getProgramHandle();
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    mBlitDepthTextureH      = GLES31.glGetUniformLocation( blitDepthProgramH, "u_Texture");
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    mBlitDepthDepthTextureH = GLES31.glGetUniformLocation( blitDepthProgramH, "u_DepthTexture");
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    mBlitDepthDepthH        = GLES31.glGetUniformLocation( blitDepthProgramH, "u_Depth");
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    mBlitDepthTexCorrH      = GLES31.glGetUniformLocation( blitDepthProgramH, "u_TexCorr");
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    // NORMAL PROGRAM //////////////////////////////////////
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    final InputStream normalVertexStream   = resources.openRawResource(R.raw.normal_vertex_shader);
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    final InputStream normalFragmentStream = resources.openRawResource(R.raw.normal_fragment_shader);
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    try
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      {
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      mNormalProgram = new DistortedProgram(normalVertexStream,normalFragmentStream, Distorted.GLSL_VERSION, Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile NORMAL program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int normalProgramH = mNormalProgram.getProgramHandle();
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    mNormalMVPMatrixH  = GLES31.glGetUniformLocation( normalProgramH, "u_MVPMatrix");
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    }
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  ///////////////////////////////////////////////////////////////////////////////////////////////////
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  static void createProgramsOIT(Resources resources)
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    {
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    // OIT CLEAR PROGRAM ////////////////////////////////////
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    final InputStream oitClearVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
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    final InputStream oitClearFragStream = resources.openRawResource(R.raw.oit_clear_fragment_shader);
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    try
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      {
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      mOITClearProgram = new DistortedProgram(oitClearVertStream,oitClearFragStream,Distorted.GLSL_VERSION,Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT CLEAR program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int oitClearProgramH   = mOITClearProgram.getProgramHandle();
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    mOITClearDepthH        = GLES31.glGetUniformLocation( oitClearProgramH, "u_Depth");
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    mOITClearTexCorrH      = GLES31.glGetUniformLocation( oitClearProgramH, "u_TexCorr");
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    mOITClearSizeH         = GLES31.glGetUniformLocation( oitClearProgramH, "u_Size");
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    // OIT BUILD PROGRAM ////////////////////////////////////
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    final InputStream oitBuildVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
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    final InputStream oitBuildFragStream = resources.openRawResource(R.raw.oit_build_fragment_shader);
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    try
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      {
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      mOITBuildProgram = new DistortedProgram(oitBuildVertStream,oitBuildFragStream,Distorted.GLSL_VERSION,Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT BUILD program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int oitBuildProgramH   = mOITBuildProgram.getProgramHandle();
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    mOITBuildTextureH      = GLES31.glGetUniformLocation( oitBuildProgramH, "u_Texture");
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    mOITBuildDepthTextureH = GLES31.glGetUniformLocation( oitBuildProgramH, "u_DepthTexture");
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    mOITBuildDepthH        = GLES31.glGetUniformLocation( oitBuildProgramH, "u_Depth");
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    mOITBuildTexCorrH      = GLES31.glGetUniformLocation( oitBuildProgramH, "u_TexCorr");
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    mOITBuildSizeH         = GLES31.glGetUniformLocation( oitBuildProgramH, "u_Size");
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    mOITBuildNumRecordsH   = GLES31.glGetUniformLocation( oitBuildProgramH, "u_numRecords");
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    if( mLinkedListSSBO[0]<0 )
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      {
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      GLES31.glGenBuffers(1,mLinkedListSSBO,0);
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      GLES31.glBindBuffer(GLES31.GL_SHADER_STORAGE_BUFFER, mLinkedListSSBO[0]);
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      GLES31.glBufferData(GLES31.GL_SHADER_STORAGE_BUFFER, mBufferSize*4 , null, GLES31.GL_DYNAMIC_READ|GLES31.GL_DYNAMIC_DRAW);
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      GLES31.glBindBufferBase(GLES31.GL_SHADER_STORAGE_BUFFER, 1, mLinkedListSSBO[0]);
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      GLES31.glBindBuffer(GLES31.GL_SHADER_STORAGE_BUFFER, 0);
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      }
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    if( mAtomicCounter[0]<0 )
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      {
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      GLES31.glGenBuffers(1,mAtomicCounter,0);
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      GLES31.glBindBufferBase(GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, mAtomicCounter[0]);
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      GLES31.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, mAtomicCounter[0] );
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      GLES31.glBufferData(GLES31.GL_ATOMIC_COUNTER_BUFFER, 4, null, GLES31.GL_DYNAMIC_DRAW);
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      GLES31.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, 0);
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      }
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    // OIT COLLAPSE PROGRAM ///////////////////////////
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    final InputStream oitCollapseVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
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    final InputStream oitCollapseFragStream = resources.openRawResource(R.raw.oit_collapse_fragment_shader);
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    try
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      {
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      mOITCollapseProgram = new DistortedProgram(oitCollapseVertStream,oitCollapseFragStream,Distorted.GLSL_VERSION,Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT COLLAPSE program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int oitCollapseProgramH   = mOITCollapseProgram.getProgramHandle();
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    mOITCollapseDepthTextureH = GLES31.glGetUniformLocation( oitCollapseProgramH, "u_DepthTexture");
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    mOITCollapseDepthH        = GLES31.glGetUniformLocation( oitCollapseProgramH, "u_Depth");
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    mOITCollapseTexCorrH      = GLES31.glGetUniformLocation( oitCollapseProgramH, "u_TexCorr");
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    mOITCollapseSizeH         = GLES31.glGetUniformLocation( oitCollapseProgramH, "u_Size");
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    // OIT RENDER PROGRAM ///////////////////////////
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    final InputStream oitRenderVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
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    final InputStream oitRenderFragStream = resources.openRawResource(R.raw.oit_render_fragment_shader);
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    try
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      {
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      mOITRenderProgram = new DistortedProgram(oitRenderVertStream,oitRenderFragStream,Distorted.GLSL_VERSION,Distorted.GLSL_VERSION, Distorted.GLSL);
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      }
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    catch(Exception e)
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      {
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      Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT RENDER program: "+e.getMessage());
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      throw new RuntimeException(e.getMessage());
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      }
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    int oitRenderProgramH   = mOITRenderProgram.getProgramHandle();
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    mOITRenderDepthH        = GLES31.glGetUniformLocation( oitRenderProgramH, "u_Depth");
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    mOITRenderTexCorrH      = GLES31.glGetUniformLocation( oitRenderProgramH, "u_TexCorr");
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    mOITRenderSizeH         = GLES31.glGetUniformLocation( oitRenderProgramH, "u_Size");
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private void initializeEffectLists(DistortedEffects d, int flags)
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    {
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    if( (flags & Distorted.CLONE_MATRIX) != 0 )
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      {
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      mM = d.mM;
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      matrixCloned = true;
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      }
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    else
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      {
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      mM = new EffectQueueMatrix(mID);
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      matrixCloned = false;
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      }
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    if( (flags & Distorted.CLONE_VERTEX) != 0 )
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      {
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      mV = d.mV;
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      vertexCloned = true;
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      }
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    else
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      {
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      mV = new EffectQueueVertex(mID);
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      vertexCloned = false;
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      }
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    if( (flags & Distorted.CLONE_FRAGMENT) != 0 )
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      {
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      mF = d.mF;
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      fragmentCloned = true;
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      }
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    else
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      {
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      mF = new EffectQueueFragment(mID);
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      fragmentCloned = false;
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      }
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    if( (flags & Distorted.CLONE_POSTPROCESS) != 0 )
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      {
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      mP = d.mP;
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      postprocessCloned = true;
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      }
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    else
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      {
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      mP = new EffectQueuePostprocess(mID);
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      postprocessCloned = false;
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  EffectQueuePostprocess getPostprocess()
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    {
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    return mP;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  void newNode(DistortedNode node)
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    {
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    mM.newNode(node);
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    mF.newNode(node);
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    mV.newNode(node);
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    mP.newNode(node);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private void displayNormals(MeshObject mesh)
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    {
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    GLES31.glBindBufferBase(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, 0, mesh.mAttTFO[0]);
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    GLES31.glBeginTransformFeedback( GLES31.GL_POINTS);
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    DistortedRenderState.switchOffDrawing();
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    GLES31.glDrawArrays( GLES31.GL_POINTS, 0, mesh.numVertices);
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    DistortedRenderState.restoreDrawing();
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    GLES31.glEndTransformFeedback();
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    GLES31.glBindBufferBase(GLES31.GL_TRANSFORM_FEEDBACK_BUFFER, 0, 0);
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    mNormalProgram.useProgram();
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    GLES31.glUniformMatrix4fv(mNormalMVPMatrixH, 1, false, mM.getMVP() , 0);
410
    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mesh.mAttTFO[0]);
411
    GLES31.glVertexAttribPointer(mNormalProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES31.GL_FLOAT, false, 0, 0);
412
    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);
413
    GLES31.glLineWidth(8.0f);
414
    GLES31.glDrawArrays(GLES31.GL_LINES, 0, 2*mesh.numVertices);
415 c90b9e01 Leszek Koltunski
    }
416 1aedf874 leszek
417 c90b9e01 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
418
419 270c27bc Leszek Koltunski
  void drawPriv(float halfW, float halfH, MeshObject mesh, DistortedOutputSurface surface, long currTime, float marginInPixels)
420 d425545a Leszek Koltunski
    {
421 c1e24646 leszek
    float halfZ = halfW*mesh.zFactor;
422 638b5b5c leszek
423 8fbd0237 Leszek Koltunski
    mM.compute(currTime);
424
    mV.compute(currTime,halfW,halfH,halfZ);
425
    mF.compute(currTime,halfW,halfH);
426 1149be8f leszek
    mP.compute(currTime);
427 8fbd0237 Leszek Koltunski
428 e6519ac8 Leszek Koltunski
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
429 d6e94c84 Leszek Koltunski
430 b9798977 leszek
    mMainProgram.useProgram();
431 e6519ac8 Leszek Koltunski
    GLES31.glUniform1i(mMainTextureH, 0);
432 12f45260 Leszek Koltunski
433 8777ce17 Leszek Koltunski
    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mesh.mAttVBO[0]);
434
    GLES31.glVertexAttribPointer(mMainProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET0);
435
    GLES31.glVertexAttribPointer(mMainProgram.mAttribute[1], MeshObject.NOR_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET1);
436
    GLES31.glVertexAttribPointer(mMainProgram.mAttribute[2], MeshObject.TEX_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET2);
437
    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);
438 cab7c165 Leszek Koltunski
439 270c27bc Leszek Koltunski
    mM.send(surface,halfW,halfH,halfZ,marginInPixels);
440 8fbd0237 Leszek Koltunski
    mV.send();
441
    mF.send();
442 42571056 Leszek Koltunski
443 e6519ac8 Leszek Koltunski
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, mesh.numVertices);
444 c90b9e01 Leszek Koltunski
445 3fc9327a Leszek Koltunski
    if( mesh.mShowNormals ) displayNormals(mesh);
446 d425545a Leszek Koltunski
    }
447 6a06a912 Leszek Koltunski
448
///////////////////////////////////////////////////////////////////////////////////////////////////
449 7266d8ef Leszek Koltunski
/**
450
 * Only for use by the library itself.
451
 *
452
 * @y.exclude
453
 */
454
  public static void blitPriv(DistortedOutputSurface surface)
455 d425545a Leszek Koltunski
    {
456 c1e24646 leszek
    mBlitProgram.useProgram();
457
458 e6519ac8 Leszek Koltunski
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
459
    GLES31.glUniform1i(mBlitTextureH, 0);
460
    GLES31.glUniform1f( mBlitDepthH , 1.0f-surface.mNear);
461
    GLES31.glVertexAttribPointer(mBlitProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
462
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
463 d425545a Leszek Koltunski
    }
464 7170e4eb leszek
465 97020807 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
466
467
  static void blitDepthPriv(DistortedOutputSurface surface, float corrW, float corrH)
468
    {
469
    mBlitDepthProgram.useProgram();
470
471
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
472
    GLES31.glUniform1i(mBlitDepthTextureH, 0);
473
    GLES31.glUniform1i(mBlitDepthDepthTextureH, 1);
474
    GLES31.glUniform2f(mBlitDepthTexCorrH, corrW, corrH );
475
    GLES31.glUniform1f( mBlitDepthDepthH , 1.0f-surface.mNear);
476
    GLES31.glVertexAttribPointer(mBlitDepthProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
477
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
478
    }
479
480 375b3950 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
481
// reset atomic counter to 0
482
483
  static void zeroOutAtomic()
484
    {
485
    GLES31.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, mAtomicCounter[0] );
486
487
    ByteBuffer atomicBuf = (ByteBuffer)GLES31.glMapBufferRange( GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, 4,
488 56c6ca24 Leszek Koltunski
                                                                GLES31.GL_MAP_WRITE_BIT|GLES31.GL_MAP_INVALIDATE_BUFFER_BIT);
489 375b3950 Leszek Koltunski
    if( atomicBuf!=null )
490
      {
491
      IntBuffer atomicIntBuf = atomicBuf.order(ByteOrder.nativeOrder()).asIntBuffer();
492
493 c92d84ec Leszek Koltunski
      //int counter = atomicIntBuf.get(0);
494 375b3950 Leszek Koltunski
      //android.util.Log.e("counter", "now = "+counter+" w="+surface.mWidth+" h="+surface.mHeight
495
      //                             +" diff="+(counter-surface.mWidth*surface.mHeight));
496 c92d84ec Leszek Koltunski
      atomicIntBuf.put(0,0);
497 375b3950 Leszek Koltunski
      }
498
    else
499
      {
500 c92d84ec Leszek Koltunski
      android.util.Log.e("effects", "failed to map atomic buffer");
501 375b3950 Leszek Koltunski
      }
502
503
    GLES31.glUnmapBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER);
504
    GLES31.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, 0);
505
    }
506
507 7170e4eb leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
508 56c6ca24 Leszek Koltunski
// Pass1 of the OIT algorithm. Clear per-pixel head-poiners.
509
510
  static void oitClear(DistortedOutputSurface surface)
511
    {
512
    mOITClearProgram.useProgram();
513
514
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
515
    GLES31.glUniform2f(mOITClearTexCorrH, 1.0f, 1.0f );   // corrections do not really matter here - only present because of common vertex shader.
516
    GLES31.glUniform1f( mOITClearDepthH , 1.0f);          // likewise depth
517 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITClearSizeH, surface.mWidth, surface.mHeight);
518 56c6ca24 Leszek Koltunski
    GLES31.glVertexAttribPointer(mOITClearProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
519
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
520
    }
521
522
///////////////////////////////////////////////////////////////////////////////////////////////////
523
// Pass2 of the OIT algorithm - build per-pixel linked lists.
524 7170e4eb leszek
525 56c6ca24 Leszek Koltunski
  static void oitBuild(DistortedOutputSurface surface, float corrW, float corrH)
526 7170e4eb leszek
    {
527 56c6ca24 Leszek Koltunski
    mOITBuildProgram.useProgram();
528 7170e4eb leszek
529 e6519ac8 Leszek Koltunski
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
530 56c6ca24 Leszek Koltunski
    GLES31.glUniform1i(mOITBuildTextureH, 0);
531
    GLES31.glUniform1i(mOITBuildDepthTextureH, 1);
532
    GLES31.glUniform2f(mOITBuildTexCorrH, corrW, corrH );
533 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITBuildSizeH, surface.mWidth, surface.mHeight);
534 56c6ca24 Leszek Koltunski
    GLES31.glUniform1ui(mOITBuildNumRecordsH, (mBufferSize-surface.mWidth*surface.mHeight)/3 );  // see the fragment shader
535
    GLES31.glUniform1f(mOITBuildDepthH , 1.0f-surface.mNear);
536
    GLES31.glVertexAttribPointer(mOITBuildProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
537 e6519ac8 Leszek Koltunski
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
538 8777ce17 Leszek Koltunski
    }
539
540
///////////////////////////////////////////////////////////////////////////////////////////////////
541 33f59f22 Leszek Koltunski
// Pass3 of the OIT algorithm. Cut occluded parts of the linked list.
542
543
  static void oitCollapse(DistortedOutputSurface surface, float corrW, float corrH)
544
    {
545
    mOITCollapseProgram.useProgram();
546
547
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
548
    GLES31.glUniform1i(mOITCollapseDepthTextureH, 1);
549
    GLES31.glUniform2f(mOITCollapseTexCorrH, corrW, corrH );
550 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITCollapseSizeH, surface.mWidth, surface.mHeight);
551 33f59f22 Leszek Koltunski
    GLES31.glUniform1f( mOITCollapseDepthH , 1.0f-surface.mNear);
552
    GLES31.glVertexAttribPointer(mOITCollapseProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
553
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
554
    }
555
556
///////////////////////////////////////////////////////////////////////////////////////////////////
557
// Pass4 of the OIT algorithm. Render all the transparent pixels from the per-pixel linked lists.
558 8777ce17 Leszek Koltunski
559 56c6ca24 Leszek Koltunski
  static void oitRender(DistortedOutputSurface surface, float corrW, float corrH)
560 8777ce17 Leszek Koltunski
    {
561 56c6ca24 Leszek Koltunski
    mOITRenderProgram.useProgram();
562 8777ce17 Leszek Koltunski
563
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
564 56c6ca24 Leszek Koltunski
    GLES31.glUniform2f(mOITRenderTexCorrH, corrW, corrH );
565 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITRenderSizeH, surface.mWidth, surface.mHeight);
566 56c6ca24 Leszek Koltunski
    GLES31.glUniform1f( mOITRenderDepthH , 1.0f-surface.mNear);
567
    GLES31.glVertexAttribPointer(mOITRenderProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
568 8777ce17 Leszek Koltunski
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
569 7170e4eb leszek
    }
570
571 cee0369a Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
572
573 8e34674e Leszek Koltunski
  private void releasePriv()
574 d425545a Leszek Koltunski
    {
575 344ac0e4 Leszek Koltunski
    if( !matrixCloned      ) mM.abortAll(false);
576
    if( !vertexCloned      ) mV.abortAll(false);
577
    if( !fragmentCloned    ) mF.abortAll(false);
578
    if( !postprocessCloned ) mP.abortAll(false);
579 d425545a Leszek Koltunski
580 4e2382f3 Leszek Koltunski
    mM = null;
581
    mV = null;
582
    mF = null;
583 80b3acf6 Leszek Koltunski
    mP = null;
584 8e34674e Leszek Koltunski
    }
585
586 1942537e Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
587
588 78e89fb5 Leszek Koltunski
  static void onPause()
589 1942537e Leszek Koltunski
    {
590 8777ce17 Leszek Koltunski
    mLinkedListSSBO[0]= -1;
591
    mAtomicCounter[0] = -1;
592 1942537e Leszek Koltunski
    }
593
594 78e89fb5 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
595
596
  static void onDestroy()
597
    {
598
    mNextID =  0;
599
    }
600
601 8e34674e Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
602
// PUBLIC API
603 ada90d33 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
604 d425545a Leszek Koltunski
/**
605 4e2382f3 Leszek Koltunski
 * Create empty effect queue.
606 d425545a Leszek Koltunski
 */
607 421c2728 Leszek Koltunski
  public DistortedEffects()
608 d425545a Leszek Koltunski
    {
609 c7da4e65 leszek
    mID = ++mNextID;
610 4e2382f3 Leszek Koltunski
    initializeEffectLists(this,0);
611 d425545a Leszek Koltunski
    }
612 ada90d33 Leszek Koltunski
613
///////////////////////////////////////////////////////////////////////////////////////////////////
614 d425545a Leszek Koltunski
/**
615 4e2382f3 Leszek Koltunski
 * Copy constructor.
616 d425545a Leszek Koltunski
 * <p>
617
 * Whatever we do not clone gets created just like in the default constructor.
618
 *
619
 * @param dc    Source object to create our object from
620
 * @param flags A bitmask of values specifying what to copy.
621 e6ab30eb Leszek Koltunski
 *              For example, CLONE_VERTEX | CLONE_MATRIX.
622 d425545a Leszek Koltunski
 */
623 421c2728 Leszek Koltunski
  public DistortedEffects(DistortedEffects dc, int flags)
624 d425545a Leszek Koltunski
    {
625 c7da4e65 leszek
    mID = ++mNextID;
626 4e2382f3 Leszek Koltunski
    initializeEffectLists(dc,flags);
627 d425545a Leszek Koltunski
    }
628 ada90d33 Leszek Koltunski
629 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
630
/**
631 07305c87 Leszek Koltunski
 * Releases all resources. After this call, the queue should not be used anymore.
632 6a06a912 Leszek Koltunski
 */
633 13687207 leszek
  @SuppressWarnings("unused")
634 8e34674e Leszek Koltunski
  public synchronized void delete()
635 d425545a Leszek Koltunski
    {
636
    releasePriv();
637
    }
638 6a06a912 Leszek Koltunski
639
///////////////////////////////////////////////////////////////////////////////////////////////////
640
/**
641 4e2382f3 Leszek Koltunski
 * Returns unique ID of this instance.
642
 *
643
 * @return ID of the object.
644 6a06a912 Leszek Koltunski
 */
645 4e2382f3 Leszek Koltunski
  public long getID()
646 d425545a Leszek Koltunski
      {
647 4e2382f3 Leszek Koltunski
      return mID;
648 d425545a Leszek Koltunski
      }
649 4e2382f3 Leszek Koltunski
650 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
651
/**
652
 * Adds the calling class to the list of Listeners that get notified each time some event happens 
653 faa3ff56 Leszek Koltunski
 * to one of the Effects in our queues. Nothing will happen if 'el' is already in the list.
654 6a06a912 Leszek Koltunski
 * 
655
 * @param el A class implementing the EffectListener interface that wants to get notifications.
656
 */
657 13687207 leszek
  @SuppressWarnings("unused")
658 3fc994b2 Leszek Koltunski
  public void registerForMessages(EffectListener el)
659 d425545a Leszek Koltunski
    {
660 26a4e5f6 leszek
    mM.registerForMessages(el);
661 3fc994b2 Leszek Koltunski
    mV.registerForMessages(el);
662
    mF.registerForMessages(el);
663 80b3acf6 Leszek Koltunski
    mP.registerForMessages(el);
664 d425545a Leszek Koltunski
    }
665 6a06a912 Leszek Koltunski
666
///////////////////////////////////////////////////////////////////////////////////////////////////
667
/**
668 faa3ff56 Leszek Koltunski
 * Removes the calling class from the list of Listeners that get notified if something happens to Effects in our queue.
669 6a06a912 Leszek Koltunski
 * 
670
 * @param el A class implementing the EffectListener interface that no longer wants to get notifications.
671
 */
672 13687207 leszek
  @SuppressWarnings("unused")
673 3fc994b2 Leszek Koltunski
  public void deregisterForMessages(EffectListener el)
674 d425545a Leszek Koltunski
    {
675 26a4e5f6 leszek
    mM.deregisterForMessages(el);
676 3fc994b2 Leszek Koltunski
    mV.deregisterForMessages(el);
677
    mF.deregisterForMessages(el);
678 80b3acf6 Leszek Koltunski
    mP.deregisterForMessages(el);
679 d425545a Leszek Koltunski
    }
680 6a06a912 Leszek Koltunski
681
///////////////////////////////////////////////////////////////////////////////////////////////////
682
/**
683 d07f2950 Leszek Koltunski
 * Aborts all Effects.
684
 * @return Number of effects aborted.
685 6a06a912 Leszek Koltunski
 */
686 d425545a Leszek Koltunski
  public int abortAllEffects()
687 13687207 leszek
    {
688
    return mM.abortAll(true) + mV.abortAll(true) + mF.abortAll(true);
689
    }
690 6a06a912 Leszek Koltunski
691
///////////////////////////////////////////////////////////////////////////////////////////////////
692
/**
693 d07f2950 Leszek Koltunski
 * Aborts all Effects of a given type, for example all MATRIX Effects.
694 6a06a912 Leszek Koltunski
 * 
695 da9b3f07 Leszek Koltunski
 * @param type one of the constants defined in {@link EffectType}
696 d07f2950 Leszek Koltunski
 * @return Number of effects aborted.
697 6a06a912 Leszek Koltunski
 */
698 da9b3f07 Leszek Koltunski
  public int abortByType(EffectType type)
699 d425545a Leszek Koltunski
    {
700
    switch(type)
701 6a06a912 Leszek Koltunski
      {
702 da9b3f07 Leszek Koltunski
      case MATRIX     : return mM.abortAll(true);
703
      case VERTEX     : return mV.abortAll(true);
704
      case FRAGMENT   : return mF.abortAll(true);
705 80b3acf6 Leszek Koltunski
      case POSTPROCESS: return mP.abortAll(true);
706 da9b3f07 Leszek Koltunski
      default         : return 0;
707 6a06a912 Leszek Koltunski
      }
708 d425545a Leszek Koltunski
    }
709 47316d20 leszek
710
///////////////////////////////////////////////////////////////////////////////////////////////////
711
/**
712 faa3ff56 Leszek Koltunski
 * Aborts an Effect by its ID.
713 47316d20 leszek
 *
714
 * @param id the Id of the Effect to be removed, as returned by getID().
715
 * @return Number of effects aborted.
716
 */
717
  public int abortById(long id)
718
    {
719
    long type = id&EffectType.MASK;
720
721 2ef5dd9e leszek
    if( type == EffectType.MATRIX.ordinal()      ) return mM.removeById(id);
722
    if( type == EffectType.VERTEX.ordinal()      ) return mV.removeById(id);
723
    if( type == EffectType.FRAGMENT.ordinal()    ) return mF.removeById(id);
724 80b3acf6 Leszek Koltunski
    if( type == EffectType.POSTPROCESS.ordinal() ) return mP.removeById(id);
725 47316d20 leszek
726
    return 0;
727
    }
728
729 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
730
/**
731
 * Aborts a single Effect.
732
 * 
733 6bb59aad Leszek Koltunski
 * @param effect the Effect we want to abort.
734 476bbc81 Leszek Koltunski
 * @return number of Effects aborted. Always either 0 or 1.
735 6a06a912 Leszek Koltunski
 */
736 6bb59aad Leszek Koltunski
  public int abortEffect(Effect effect)
737 d425545a Leszek Koltunski
    {
738 6bb59aad Leszek Koltunski
    switch(effect.getType())
739
      {
740 da9b3f07 Leszek Koltunski
      case MATRIX     : return mM.removeEffect(effect);
741
      case VERTEX     : return mV.removeEffect(effect);
742
      case FRAGMENT   : return mF.removeEffect(effect);
743 80b3acf6 Leszek Koltunski
      case POSTPROCESS: return mP.removeEffect(effect);
744 da9b3f07 Leszek Koltunski
      default         : return 0;
745 6bb59aad Leszek Koltunski
      }
746 d425545a Leszek Koltunski
    }
747 6a06a912 Leszek Koltunski
748
///////////////////////////////////////////////////////////////////////////////////////////////////
749
/**
750 e8c81a8e Leszek Koltunski
 * Abort all Effects of a given name, for example all rotations.
751 6a06a912 Leszek Koltunski
 * 
752 da9b3f07 Leszek Koltunski
 * @param name one of the constants defined in {@link EffectName}
753 476bbc81 Leszek Koltunski
 * @return number of Effects aborted.
754 6a06a912 Leszek Koltunski
 */
755 da9b3f07 Leszek Koltunski
  public int abortByName(EffectName name)
756 d425545a Leszek Koltunski
    {
757 da9b3f07 Leszek Koltunski
    switch(name.getType())
758 6a06a912 Leszek Koltunski
      {
759 da9b3f07 Leszek Koltunski
      case MATRIX     : return mM.removeByName(name);
760
      case VERTEX     : return mV.removeByName(name);
761
      case FRAGMENT   : return mF.removeByName(name);
762 80b3acf6 Leszek Koltunski
      case POSTPROCESS: return mP.removeByName(name);
763 6bb59aad Leszek Koltunski
      default                : return 0;
764 6a06a912 Leszek Koltunski
      }
765 d425545a Leszek Koltunski
    }
766 432442f9 Leszek Koltunski
767
///////////////////////////////////////////////////////////////////////////////////////////////////
768
/**
769 faa3ff56 Leszek Koltunski
 * Returns the maximum number of effects of a given type that can be simultaneously applied to a
770
 * single (InputSurface,MeshObject) combo.
771 432442f9 Leszek Koltunski
 *
772 fe6fe99a leszek
 * @param type {@link EffectType}
773
 * @return The maximum number of effects of a given type.
774 432442f9 Leszek Koltunski
 */
775 13687207 leszek
  @SuppressWarnings("unused")
776 fe6fe99a leszek
  public static int getMax(EffectType type)
777 432442f9 Leszek Koltunski
    {
778 fe6fe99a leszek
    return EffectQueue.getMax(type.ordinal());
779 432442f9 Leszek Koltunski
    }
780
781
///////////////////////////////////////////////////////////////////////////////////////////////////
782
/**
783 fe6fe99a leszek
 * Sets the maximum number of effects that can be stored in a single EffectQueue at one time.
784 432442f9 Leszek Koltunski
 * This can fail if:
785
 * <ul>
786
 * <li>the value of 'max' is outside permitted range (0 &le; max &le; Byte.MAX_VALUE)
787
 * <li>We try to increase the value of 'max' when it is too late to do so already. It needs to be called
788
 *     before the Vertex Shader gets compiled, i.e. before the call to {@link Distorted#onCreate}. After this
789
 *     time only decreasing the value of 'max' is permitted.
790
 * <li>Furthermore, this needs to be called before any instances of the DistortedEffects class get created.
791
 * </ul>
792
 *
793 fe6fe99a leszek
 * @param type {@link EffectType}
794
 * @param max new maximum number of simultaneous effects. Has to be a non-negative number not greater
795 80b3acf6 Leszek Koltunski
 *            than Byte.MAX_VALUE
796
 * @return <code>true</code> if operation was successful, <code>false</code> otherwise.
797
 */
798
  @SuppressWarnings("unused")
799 fe6fe99a leszek
  public static boolean setMax(EffectType type, int max)
800 80b3acf6 Leszek Koltunski
    {
801 fe6fe99a leszek
    return EffectQueue.setMax(type.ordinal(),max);
802 80b3acf6 Leszek Koltunski
    }
803
804 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
805
/**
806 6bb59aad Leszek Koltunski
 * Add a new Effect to our queue.
807 f2fe7e28 Leszek Koltunski
 *
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 * @param effect The Effect to add.
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 * @return <code>true</code> if operation was successful, <code>false</code> otherwise.
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 */
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  public boolean apply(Effect effect)
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    {
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    switch(effect.getType())
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      {
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      case MATRIX      : return mM.add(effect);
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      case VERTEX      : return mV.add(effect);
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      case FRAGMENT    : return mF.add(effect);
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      case POSTPROCESS : return mP.add(effect);
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      }
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    return false;
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    }
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  }