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library / src / main / java / org / distorted / library / main / DistortedEffects.java @ 61ce8e90

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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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  /// 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 createProgram(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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    // 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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    // 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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  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);
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    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mesh.mAttTFO[0]);
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    GLES31.glVertexAttribPointer(mNormalProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES31.GL_FLOAT, false, 0, 0);
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    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);
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    GLES31.glLineWidth(8.0f);
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    GLES31.glDrawArrays(GLES31.GL_LINES, 0, 2*mesh.numVertices);
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  void drawPriv(float halfW, float halfH, MeshObject mesh, DistortedOutputSurface surface, long currTime, float marginInPixels)
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    {
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    float halfZ = halfW*mesh.zFactor;
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    mM.compute(currTime);
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    mV.compute(currTime,halfW,halfH,halfZ);
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    mF.compute(currTime,halfW,halfH);
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    mP.compute(currTime);
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    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
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398 b9798977 leszek
    mMainProgram.useProgram();
399 e6519ac8 Leszek Koltunski
    GLES31.glUniform1i(mMainTextureH, 0);
400 12f45260 Leszek Koltunski
401 8777ce17 Leszek Koltunski
    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, mesh.mAttVBO[0]);
402
    GLES31.glVertexAttribPointer(mMainProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET0);
403
    GLES31.glVertexAttribPointer(mMainProgram.mAttribute[1], MeshObject.NOR_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET1);
404
    GLES31.glVertexAttribPointer(mMainProgram.mAttribute[2], MeshObject.TEX_DATA_SIZE, GLES31.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET2);
405
    GLES31.glBindBuffer(GLES31.GL_ARRAY_BUFFER, 0);
406 cab7c165 Leszek Koltunski
407 270c27bc Leszek Koltunski
    mM.send(surface,halfW,halfH,halfZ,marginInPixels);
408 8fbd0237 Leszek Koltunski
    mV.send();
409
    mF.send();
410 42571056 Leszek Koltunski
411 e6519ac8 Leszek Koltunski
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, mesh.numVertices);
412 c90b9e01 Leszek Koltunski
413 3fc9327a Leszek Koltunski
    if( mesh.mShowNormals ) displayNormals(mesh);
414 d425545a Leszek Koltunski
    }
415 6a06a912 Leszek Koltunski
416
///////////////////////////////////////////////////////////////////////////////////////////////////
417 7266d8ef Leszek Koltunski
/**
418
 * Only for use by the library itself.
419
 *
420
 * @y.exclude
421
 */
422
  public static void blitPriv(DistortedOutputSurface surface)
423 d425545a Leszek Koltunski
    {
424 c1e24646 leszek
    mBlitProgram.useProgram();
425
426 e6519ac8 Leszek Koltunski
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
427
    GLES31.glUniform1i(mBlitTextureH, 0);
428
    GLES31.glUniform1f( mBlitDepthH , 1.0f-surface.mNear);
429
    GLES31.glVertexAttribPointer(mBlitProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
430
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
431 d425545a Leszek Koltunski
    }
432 7170e4eb leszek
433 375b3950 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
434
// reset atomic counter to 0
435
436
  static void zeroOutAtomic()
437
    {
438
    GLES31.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, mAtomicCounter[0] );
439
440
    ByteBuffer atomicBuf = (ByteBuffer)GLES31.glMapBufferRange( GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, 4,
441 56c6ca24 Leszek Koltunski
                                                                GLES31.GL_MAP_WRITE_BIT|GLES31.GL_MAP_INVALIDATE_BUFFER_BIT);
442 375b3950 Leszek Koltunski
    if( atomicBuf!=null )
443
      {
444
      IntBuffer atomicIntBuf = atomicBuf.order(ByteOrder.nativeOrder()).asIntBuffer();
445
446 c92d84ec Leszek Koltunski
      //int counter = atomicIntBuf.get(0);
447 375b3950 Leszek Koltunski
      //android.util.Log.e("counter", "now = "+counter+" w="+surface.mWidth+" h="+surface.mHeight
448
      //                             +" diff="+(counter-surface.mWidth*surface.mHeight));
449 c92d84ec Leszek Koltunski
      atomicIntBuf.put(0,0);
450 375b3950 Leszek Koltunski
      }
451
    else
452
      {
453 c92d84ec Leszek Koltunski
      android.util.Log.e("effects", "failed to map atomic buffer");
454 375b3950 Leszek Koltunski
      }
455
456
    GLES31.glUnmapBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER);
457
    GLES31.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, 0);
458
    }
459
460 7170e4eb leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
461 56c6ca24 Leszek Koltunski
// Pass1 of the OIT algorithm. Clear per-pixel head-poiners.
462
463
  static void oitClear(DistortedOutputSurface surface)
464
    {
465
    mOITClearProgram.useProgram();
466
467
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
468
    GLES31.glUniform2f(mOITClearTexCorrH, 1.0f, 1.0f );   // corrections do not really matter here - only present because of common vertex shader.
469
    GLES31.glUniform1f( mOITClearDepthH , 1.0f);          // likewise depth
470 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITClearSizeH, surface.mWidth, surface.mHeight);
471 56c6ca24 Leszek Koltunski
    GLES31.glVertexAttribPointer(mOITClearProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
472
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
473
    }
474
475
///////////////////////////////////////////////////////////////////////////////////////////////////
476
// Pass2 of the OIT algorithm - build per-pixel linked lists.
477 7170e4eb leszek
478 56c6ca24 Leszek Koltunski
  static void oitBuild(DistortedOutputSurface surface, float corrW, float corrH)
479 7170e4eb leszek
    {
480 56c6ca24 Leszek Koltunski
    mOITBuildProgram.useProgram();
481 7170e4eb leszek
482 e6519ac8 Leszek Koltunski
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
483 56c6ca24 Leszek Koltunski
    GLES31.glUniform1i(mOITBuildTextureH, 0);
484
    GLES31.glUniform1i(mOITBuildDepthTextureH, 1);
485
    GLES31.glUniform2f(mOITBuildTexCorrH, corrW, corrH );
486 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITBuildSizeH, surface.mWidth, surface.mHeight);
487 56c6ca24 Leszek Koltunski
    GLES31.glUniform1ui(mOITBuildNumRecordsH, (mBufferSize-surface.mWidth*surface.mHeight)/3 );  // see the fragment shader
488
    GLES31.glUniform1f(mOITBuildDepthH , 1.0f-surface.mNear);
489
    GLES31.glVertexAttribPointer(mOITBuildProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
490 e6519ac8 Leszek Koltunski
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
491 8777ce17 Leszek Koltunski
    }
492
493
///////////////////////////////////////////////////////////////////////////////////////////////////
494 33f59f22 Leszek Koltunski
// Pass3 of the OIT algorithm. Cut occluded parts of the linked list.
495
496
  static void oitCollapse(DistortedOutputSurface surface, float corrW, float corrH)
497
    {
498
    mOITCollapseProgram.useProgram();
499
500
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
501
    GLES31.glUniform1i(mOITCollapseDepthTextureH, 1);
502
    GLES31.glUniform2f(mOITCollapseTexCorrH, corrW, corrH );
503 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITCollapseSizeH, surface.mWidth, surface.mHeight);
504 33f59f22 Leszek Koltunski
    GLES31.glUniform1f( mOITCollapseDepthH , 1.0f-surface.mNear);
505
    GLES31.glVertexAttribPointer(mOITCollapseProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
506
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
507
    }
508
509
///////////////////////////////////////////////////////////////////////////////////////////////////
510
// Pass4 of the OIT algorithm. Render all the transparent pixels from the per-pixel linked lists.
511 8777ce17 Leszek Koltunski
512 56c6ca24 Leszek Koltunski
  static void oitRender(DistortedOutputSurface surface, float corrW, float corrH)
513 8777ce17 Leszek Koltunski
    {
514 56c6ca24 Leszek Koltunski
    mOITRenderProgram.useProgram();
515 8777ce17 Leszek Koltunski
516
    GLES31.glViewport(0, 0, surface.mWidth, surface.mHeight );
517 56c6ca24 Leszek Koltunski
    GLES31.glUniform2f(mOITRenderTexCorrH, corrW, corrH );
518 344ac0e4 Leszek Koltunski
    GLES31.glUniform2ui(mOITRenderSizeH, surface.mWidth, surface.mHeight);
519 56c6ca24 Leszek Koltunski
    GLES31.glUniform1f( mOITRenderDepthH , 1.0f-surface.mNear);
520
    GLES31.glVertexAttribPointer(mOITRenderProgram.mAttribute[0], 2, GLES31.GL_FLOAT, false, 0, mQuadPositions);
521 8777ce17 Leszek Koltunski
    GLES31.glDrawArrays(GLES31.GL_TRIANGLE_STRIP, 0, 4);
522 7170e4eb leszek
    }
523
524 cee0369a Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
525
526 8e34674e Leszek Koltunski
  private void releasePriv()
527 d425545a Leszek Koltunski
    {
528 344ac0e4 Leszek Koltunski
    if( !matrixCloned      ) mM.abortAll(false);
529
    if( !vertexCloned      ) mV.abortAll(false);
530
    if( !fragmentCloned    ) mF.abortAll(false);
531
    if( !postprocessCloned ) mP.abortAll(false);
532 d425545a Leszek Koltunski
533 4e2382f3 Leszek Koltunski
    mM = null;
534
    mV = null;
535
    mF = null;
536 80b3acf6 Leszek Koltunski
    mP = null;
537 8e34674e Leszek Koltunski
    }
538
539 1942537e Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
540
541 78e89fb5 Leszek Koltunski
  static void onPause()
542 1942537e Leszek Koltunski
    {
543 8777ce17 Leszek Koltunski
    mLinkedListSSBO[0]= -1;
544
    mAtomicCounter[0] = -1;
545 1942537e Leszek Koltunski
    }
546
547 78e89fb5 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
548
549
  static void onDestroy()
550
    {
551
    mNextID =  0;
552
    }
553
554 8e34674e Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
555
// PUBLIC API
556 ada90d33 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
557 d425545a Leszek Koltunski
/**
558 4e2382f3 Leszek Koltunski
 * Create empty effect queue.
559 d425545a Leszek Koltunski
 */
560 421c2728 Leszek Koltunski
  public DistortedEffects()
561 d425545a Leszek Koltunski
    {
562 c7da4e65 leszek
    mID = ++mNextID;
563 4e2382f3 Leszek Koltunski
    initializeEffectLists(this,0);
564 d425545a Leszek Koltunski
    }
565 ada90d33 Leszek Koltunski
566
///////////////////////////////////////////////////////////////////////////////////////////////////
567 d425545a Leszek Koltunski
/**
568 4e2382f3 Leszek Koltunski
 * Copy constructor.
569 d425545a Leszek Koltunski
 * <p>
570
 * Whatever we do not clone gets created just like in the default constructor.
571
 *
572
 * @param dc    Source object to create our object from
573
 * @param flags A bitmask of values specifying what to copy.
574 e6ab30eb Leszek Koltunski
 *              For example, CLONE_VERTEX | CLONE_MATRIX.
575 d425545a Leszek Koltunski
 */
576 421c2728 Leszek Koltunski
  public DistortedEffects(DistortedEffects dc, int flags)
577 d425545a Leszek Koltunski
    {
578 c7da4e65 leszek
    mID = ++mNextID;
579 4e2382f3 Leszek Koltunski
    initializeEffectLists(dc,flags);
580 d425545a Leszek Koltunski
    }
581 ada90d33 Leszek Koltunski
582 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
583
/**
584 07305c87 Leszek Koltunski
 * Releases all resources. After this call, the queue should not be used anymore.
585 6a06a912 Leszek Koltunski
 */
586 13687207 leszek
  @SuppressWarnings("unused")
587 8e34674e Leszek Koltunski
  public synchronized void delete()
588 d425545a Leszek Koltunski
    {
589
    releasePriv();
590
    }
591 6a06a912 Leszek Koltunski
592
///////////////////////////////////////////////////////////////////////////////////////////////////
593
/**
594 4e2382f3 Leszek Koltunski
 * Returns unique ID of this instance.
595
 *
596
 * @return ID of the object.
597 6a06a912 Leszek Koltunski
 */
598 4e2382f3 Leszek Koltunski
  public long getID()
599 d425545a Leszek Koltunski
      {
600 4e2382f3 Leszek Koltunski
      return mID;
601 d425545a Leszek Koltunski
      }
602 4e2382f3 Leszek Koltunski
603 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
604
/**
605
 * Adds the calling class to the list of Listeners that get notified each time some event happens 
606 faa3ff56 Leszek Koltunski
 * to one of the Effects in our queues. Nothing will happen if 'el' is already in the list.
607 6a06a912 Leszek Koltunski
 * 
608
 * @param el A class implementing the EffectListener interface that wants to get notifications.
609
 */
610 13687207 leszek
  @SuppressWarnings("unused")
611 3fc994b2 Leszek Koltunski
  public void registerForMessages(EffectListener el)
612 d425545a Leszek Koltunski
    {
613 26a4e5f6 leszek
    mM.registerForMessages(el);
614 3fc994b2 Leszek Koltunski
    mV.registerForMessages(el);
615
    mF.registerForMessages(el);
616 80b3acf6 Leszek Koltunski
    mP.registerForMessages(el);
617 d425545a Leszek Koltunski
    }
618 6a06a912 Leszek Koltunski
619
///////////////////////////////////////////////////////////////////////////////////////////////////
620
/**
621 faa3ff56 Leszek Koltunski
 * Removes the calling class from the list of Listeners that get notified if something happens to Effects in our queue.
622 6a06a912 Leszek Koltunski
 * 
623
 * @param el A class implementing the EffectListener interface that no longer wants to get notifications.
624
 */
625 13687207 leszek
  @SuppressWarnings("unused")
626 3fc994b2 Leszek Koltunski
  public void deregisterForMessages(EffectListener el)
627 d425545a Leszek Koltunski
    {
628 26a4e5f6 leszek
    mM.deregisterForMessages(el);
629 3fc994b2 Leszek Koltunski
    mV.deregisterForMessages(el);
630
    mF.deregisterForMessages(el);
631 80b3acf6 Leszek Koltunski
    mP.deregisterForMessages(el);
632 d425545a Leszek Koltunski
    }
633 6a06a912 Leszek Koltunski
634
///////////////////////////////////////////////////////////////////////////////////////////////////
635
/**
636 d07f2950 Leszek Koltunski
 * Aborts all Effects.
637
 * @return Number of effects aborted.
638 6a06a912 Leszek Koltunski
 */
639 d425545a Leszek Koltunski
  public int abortAllEffects()
640 13687207 leszek
    {
641
    return mM.abortAll(true) + mV.abortAll(true) + mF.abortAll(true);
642
    }
643 6a06a912 Leszek Koltunski
644
///////////////////////////////////////////////////////////////////////////////////////////////////
645
/**
646 d07f2950 Leszek Koltunski
 * Aborts all Effects of a given type, for example all MATRIX Effects.
647 6a06a912 Leszek Koltunski
 * 
648 da9b3f07 Leszek Koltunski
 * @param type one of the constants defined in {@link EffectType}
649 d07f2950 Leszek Koltunski
 * @return Number of effects aborted.
650 6a06a912 Leszek Koltunski
 */
651 da9b3f07 Leszek Koltunski
  public int abortByType(EffectType type)
652 d425545a Leszek Koltunski
    {
653
    switch(type)
654 6a06a912 Leszek Koltunski
      {
655 da9b3f07 Leszek Koltunski
      case MATRIX     : return mM.abortAll(true);
656
      case VERTEX     : return mV.abortAll(true);
657
      case FRAGMENT   : return mF.abortAll(true);
658 80b3acf6 Leszek Koltunski
      case POSTPROCESS: return mP.abortAll(true);
659 da9b3f07 Leszek Koltunski
      default         : return 0;
660 6a06a912 Leszek Koltunski
      }
661 d425545a Leszek Koltunski
    }
662 47316d20 leszek
663
///////////////////////////////////////////////////////////////////////////////////////////////////
664
/**
665 faa3ff56 Leszek Koltunski
 * Aborts an Effect by its ID.
666 47316d20 leszek
 *
667
 * @param id the Id of the Effect to be removed, as returned by getID().
668
 * @return Number of effects aborted.
669
 */
670
  public int abortById(long id)
671
    {
672
    long type = id&EffectType.MASK;
673
674 2ef5dd9e leszek
    if( type == EffectType.MATRIX.ordinal()      ) return mM.removeById(id);
675
    if( type == EffectType.VERTEX.ordinal()      ) return mV.removeById(id);
676
    if( type == EffectType.FRAGMENT.ordinal()    ) return mF.removeById(id);
677 80b3acf6 Leszek Koltunski
    if( type == EffectType.POSTPROCESS.ordinal() ) return mP.removeById(id);
678 47316d20 leszek
679
    return 0;
680
    }
681
682 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
683
/**
684
 * Aborts a single Effect.
685
 * 
686 6bb59aad Leszek Koltunski
 * @param effect the Effect we want to abort.
687 476bbc81 Leszek Koltunski
 * @return number of Effects aborted. Always either 0 or 1.
688 6a06a912 Leszek Koltunski
 */
689 6bb59aad Leszek Koltunski
  public int abortEffect(Effect effect)
690 d425545a Leszek Koltunski
    {
691 6bb59aad Leszek Koltunski
    switch(effect.getType())
692
      {
693 da9b3f07 Leszek Koltunski
      case MATRIX     : return mM.removeEffect(effect);
694
      case VERTEX     : return mV.removeEffect(effect);
695
      case FRAGMENT   : return mF.removeEffect(effect);
696 80b3acf6 Leszek Koltunski
      case POSTPROCESS: return mP.removeEffect(effect);
697 da9b3f07 Leszek Koltunski
      default         : return 0;
698 6bb59aad Leszek Koltunski
      }
699 d425545a Leszek Koltunski
    }
700 6a06a912 Leszek Koltunski
701
///////////////////////////////////////////////////////////////////////////////////////////////////
702
/**
703 e8c81a8e Leszek Koltunski
 * Abort all Effects of a given name, for example all rotations.
704 6a06a912 Leszek Koltunski
 * 
705 da9b3f07 Leszek Koltunski
 * @param name one of the constants defined in {@link EffectName}
706 476bbc81 Leszek Koltunski
 * @return number of Effects aborted.
707 6a06a912 Leszek Koltunski
 */
708 da9b3f07 Leszek Koltunski
  public int abortByName(EffectName name)
709 d425545a Leszek Koltunski
    {
710 da9b3f07 Leszek Koltunski
    switch(name.getType())
711 6a06a912 Leszek Koltunski
      {
712 da9b3f07 Leszek Koltunski
      case MATRIX     : return mM.removeByName(name);
713
      case VERTEX     : return mV.removeByName(name);
714
      case FRAGMENT   : return mF.removeByName(name);
715 80b3acf6 Leszek Koltunski
      case POSTPROCESS: return mP.removeByName(name);
716 6bb59aad Leszek Koltunski
      default                : return 0;
717 6a06a912 Leszek Koltunski
      }
718 d425545a Leszek Koltunski
    }
719 432442f9 Leszek Koltunski
720
///////////////////////////////////////////////////////////////////////////////////////////////////
721
/**
722 faa3ff56 Leszek Koltunski
 * Returns the maximum number of effects of a given type that can be simultaneously applied to a
723
 * single (InputSurface,MeshObject) combo.
724 432442f9 Leszek Koltunski
 *
725 fe6fe99a leszek
 * @param type {@link EffectType}
726
 * @return The maximum number of effects of a given type.
727 432442f9 Leszek Koltunski
 */
728 13687207 leszek
  @SuppressWarnings("unused")
729 fe6fe99a leszek
  public static int getMax(EffectType type)
730 432442f9 Leszek Koltunski
    {
731 fe6fe99a leszek
    return EffectQueue.getMax(type.ordinal());
732 432442f9 Leszek Koltunski
    }
733
734
///////////////////////////////////////////////////////////////////////////////////////////////////
735
/**
736 fe6fe99a leszek
 * Sets the maximum number of effects that can be stored in a single EffectQueue at one time.
737 432442f9 Leszek Koltunski
 * This can fail if:
738
 * <ul>
739
 * <li>the value of 'max' is outside permitted range (0 &le; max &le; Byte.MAX_VALUE)
740
 * <li>We try to increase the value of 'max' when it is too late to do so already. It needs to be called
741
 *     before the Vertex Shader gets compiled, i.e. before the call to {@link Distorted#onCreate}. After this
742
 *     time only decreasing the value of 'max' is permitted.
743
 * <li>Furthermore, this needs to be called before any instances of the DistortedEffects class get created.
744
 * </ul>
745
 *
746 fe6fe99a leszek
 * @param type {@link EffectType}
747
 * @param max new maximum number of simultaneous effects. Has to be a non-negative number not greater
748 80b3acf6 Leszek Koltunski
 *            than Byte.MAX_VALUE
749
 * @return <code>true</code> if operation was successful, <code>false</code> otherwise.
750
 */
751
  @SuppressWarnings("unused")
752 fe6fe99a leszek
  public static boolean setMax(EffectType type, int max)
753 80b3acf6 Leszek Koltunski
    {
754 fe6fe99a leszek
    return EffectQueue.setMax(type.ordinal(),max);
755 80b3acf6 Leszek Koltunski
    }
756
757 6a06a912 Leszek Koltunski
///////////////////////////////////////////////////////////////////////////////////////////////////
758
/**
759 6bb59aad Leszek Koltunski
 * Add a new Effect to our queue.
760 f2fe7e28 Leszek Koltunski
 *
761 6bb59aad Leszek Koltunski
 * @param effect The Effect to add.
762 ae77d55e Leszek Koltunski
 * @return <code>true</code> if operation was successful, <code>false</code> otherwise.
763 6a06a912 Leszek Koltunski
 */
764 ae77d55e Leszek Koltunski
  public boolean apply(Effect effect)
765 d425545a Leszek Koltunski
    {
766 6bb59aad Leszek Koltunski
    switch(effect.getType())
767
      {
768 26a4e5f6 leszek
      case MATRIX      : return mM.add(effect);
769 ae77d55e Leszek Koltunski
      case VERTEX      : return mV.add(effect);
770
      case FRAGMENT    : return mF.add(effect);
771 80b3acf6 Leszek Koltunski
      case POSTPROCESS : return mP.add(effect);
772 6bb59aad Leszek Koltunski
      }
773 ae77d55e Leszek Koltunski
774
    return false;
775 4fde55a0 Leszek Koltunski
    }
776 f2fe7e28 Leszek Koltunski
  }