Distorted Android

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.library.main;

import android.opengl.GLES30;

import org.distorted.library.effect.Effect;

import org.distorted.library.effect.VertexEffect;

import org.distorted.library.message.EffectMessage;

import org.distorted.library.type.Dynamic3D;

import org.distorted.library.type.Dynamic4D;

import org.distorted.library.type.Static;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static2D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

import org.distorted.library.type.Static5D;

///////////////////////////////////////////////////////////////////////////////////////////////////

class EffectQueueVertex extends EffectQueue

  { 

  private static final int NUM_UNIFORMS = 12;

  private static final int NUM_CACHE    =  3;

  private static final int INDEX = Effect.VERTEX;

  private static int mNumEffectsH;

  private static int mTypeH;

  private static int mUniformsH;

///////////////////////////////////////////////////////////////////////////////////////////////////

  EffectQueueVertex(long id)

    { 

    super(id,NUM_UNIFORMS,NUM_CACHE,INDEX);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  static void getUniforms(int mProgramH)

    {

    mNumEffectsH= GLES30.glGetUniformLocation( mProgramH, "vNumEffects");

    mTypeH      = GLES30.glGetUniformLocation( mProgramH, "vType");

    mUniformsH  = GLES30.glGetUniformLocation( mProgramH, "vUniforms");

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  synchronized void compute(long currTime) 

    {

    if( currTime==mTime ) return;

    if( mTime==0 ) mTime = currTime;

    long step = (currTime-mTime);

    for(int i=0; i<mNumEffects; i++)

      {

      mCurrentDuration[i] += step;

      if( mInter[0][i]!=null )

        {

        if( mInter[0][i].interpolateMain(mUniforms ,NUM_UNIFORMS*i, mCurrentDuration[i], step) )

          {

          postprocess(i);

          for(int j=0; j<mNumListeners; j++)

            EffectMessageSender.newMessage( mListeners.elementAt(j),

                                            EffectMessage.EFFECT_FINISHED,

                                           (mID[i]<<Effect.LENGTH)+Effect.VERTEX,

                                            mName[i],

                                            mObjectID);

          if( VertexEffect.isUnity(mName[i], mUniforms, NUM_UNIFORMS*i) )

            {

            remove(i);

            i--;

            continue;

            }

          else mInter[0][i] = null;

          }

        else

          {

          postprocess(i);

          }

        }

      if( mInter[1][i]!=null ) mInter[1][i].interpolateMain(mUniforms, NUM_UNIFORMS*i+8, mCurrentDuration[i], step);

      if( mInter[2][i]!=null ) mInter[2][i].interpolateMain(mCache   , NUM_CACHE*i     , mCurrentDuration[i], step);

      }

    mTime = currTime;  

    }  

///////////////////////////////////////////////////////////////////////////////////////////////////

  protected void moveEffect(int index)

    {

    mUniforms[NUM_UNIFORMS*index   ] = mUniforms[NUM_UNIFORMS*(index+1)   ];

    mUniforms[NUM_UNIFORMS*index+ 1] = mUniforms[NUM_UNIFORMS*(index+1)+ 1];

    mUniforms[NUM_UNIFORMS*index+ 2] = mUniforms[NUM_UNIFORMS*(index+1)+ 2];

    mUniforms[NUM_UNIFORMS*index+ 3] = mUniforms[NUM_UNIFORMS*(index+1)+ 3];

    mUniforms[NUM_UNIFORMS*index+ 4] = mUniforms[NUM_UNIFORMS*(index+1)+ 4];

    mCache[NUM_CACHE*index  ] = mCache[NUM_CACHE*(index+1)  ];

    mCache[NUM_CACHE*index+1] = mCache[NUM_CACHE*(index+1)+1];

    mCache[NUM_CACHE*index+2] = mCache[NUM_CACHE*(index+1)+2];

    mUniforms[NUM_UNIFORMS*index+ 8] = mUniforms[NUM_UNIFORMS*(index+1)+ 8];

    mUniforms[NUM_UNIFORMS*index+ 9] = mUniforms[NUM_UNIFORMS*(index+1)+ 9];

    mUniforms[NUM_UNIFORMS*index+10] = mUniforms[NUM_UNIFORMS*(index+1)+10];

    mUniforms[NUM_UNIFORMS*index+11] = mUniforms[NUM_UNIFORMS*(index+1)+11];

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  synchronized void send(float halfX, float halfY, float halfZ)

    {

    GLES30.glUniform1i( mNumEffectsH, mNumEffects);

    if( mNumEffects>0 )

      {

      for(int i=0; i<mNumEffects; i++)

        {

        mUniforms[NUM_UNIFORMS*i+5] = mCache[NUM_CACHE*i  ]-halfX;

        mUniforms[NUM_UNIFORMS*i+6] =-mCache[NUM_CACHE*i+1]+halfY;

        mUniforms[NUM_UNIFORMS*i+7] = mCache[NUM_CACHE*i+2]-halfZ;

        }

      GLES30.glUniform1iv( mTypeH    ,                 mNumEffects, mName    ,0);

      GLES30.glUniform4fv( mUniformsH,(NUM_UNIFORMS/4)*mNumEffects, mUniforms,0);

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

// Do various post-processing on already computed effects.

// 1) here unlike in the fragment queue, we don't have to multiply the points by ModelView matrix because that gets done in the shader.

// 2) in case of SWIRL, switch the angles from degrees to radians

// 3) likewise in case of WAVE and PINCH

// 4) In case of DISTORT, invert the Y-axis

  private void postprocess(int effect)

    {

    if( mName[effect]==VertexEffect.SWIRL )

      {

      mUniforms[NUM_UNIFORMS*effect  ] = (float)(Math.PI*mUniforms[NUM_UNIFORMS*effect  ]/180);

      }

    if( mName[effect]==VertexEffect.PINCH )

      {

      mUniforms[NUM_UNIFORMS*effect+1] = (float)(Math.PI*mUniforms[NUM_UNIFORMS*effect+1]/180);

      }

    if( mName[effect]==VertexEffect.WAVE )

      {

      mUniforms[NUM_UNIFORMS*effect+2] = (float)(Math.PI*mUniforms[NUM_UNIFORMS*effect+2]/180);

      mUniforms[NUM_UNIFORMS*effect+3] = (float)(Math.PI*mUniforms[NUM_UNIFORMS*effect+3]/180);

      mUniforms[NUM_UNIFORMS*effect+4] = (float)(Math.PI*mUniforms[NUM_UNIFORMS*effect+4]/180);

      }

    if( mName[effect]==VertexEffect.DISTORT )

      {

      mUniforms[NUM_UNIFORMS*effect+1] =-mUniforms[NUM_UNIFORMS*effect+1];

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  synchronized long add(VertexEffect ve)

    {

    if( mMax[INDEX]>mNumEffects )

      {

      if( ve.mDynamic0 != null )

        {

        mInter[0][mNumEffects] = ve.mDynamic0;

        }

      else

        {

        mInter[0][mNumEffects] = null;

        if( ve.mStatic0 != null )

          {

          Static s = ve.mStatic0;

          switch( s.getDimension() )

            {

            case 5 : mUniforms[NUM_UNIFORMS*mNumEffects + 4] = ((Static5D)s).getV();

            case 4 : mUniforms[NUM_UNIFORMS*mNumEffects + 3] = ((Static4D)s).getW();

            case 3 : mUniforms[NUM_UNIFORMS*mNumEffects + 2] = ((Static3D)s).getZ();

            case 2 : mUniforms[NUM_UNIFORMS*mNumEffects + 1] = ((Static2D)s).getY();

            case 1 : mUniforms[NUM_UNIFORMS*mNumEffects    ] = ((Static1D)s).getX();

            }

          }

        }

      if( ve.mRegion!=null )

        {

        if( ve.mRegion instanceof Dynamic4D)

          {

          mInter[1][mNumEffects] = (Dynamic4D)ve.mRegion;

          }

        else if ( ve.mRegion instanceof Static4D)

          {

          Static4D tmp = (Static4D)ve.mRegion;

          float z = tmp.getZ();

          mUniforms[NUM_UNIFORMS*mNumEffects+ 8] = tmp.getX();

          mUniforms[NUM_UNIFORMS*mNumEffects+ 9] =-tmp.getY();   // invert y already

          mUniforms[NUM_UNIFORMS*mNumEffects+10] = z<=0.0f ? Float.MAX_VALUE : z;

          mUniforms[NUM_UNIFORMS*mNumEffects+11] = tmp.getW();

          mInter[1][mNumEffects] = null;

          }

        else return -1;

        }

      else

        {

        mUniforms[NUM_UNIFORMS*mNumEffects+ 8] = 0.0f;

        mUniforms[NUM_UNIFORMS*mNumEffects+ 9] = 0.0f;

        mUniforms[NUM_UNIFORMS*mNumEffects+10] = Float.MAX_VALUE;

        mUniforms[NUM_UNIFORMS*mNumEffects+11] = 0.0f;

        mInter[1][mNumEffects] = null;

        }

      if( ve.mCenter instanceof Dynamic3D)

        {

        mInter[2][mNumEffects] = (Dynamic3D)ve.mCenter;

        }

      else if( ve.mCenter instanceof Static3D)

        {

        mInter[2][mNumEffects] = null;

        mCache[NUM_CACHE*mNumEffects  ] = ((Static3D)ve.mCenter).getX();

        mCache[NUM_CACHE*mNumEffects+1] = ((Static3D)ve.mCenter).getY();

        mCache[NUM_CACHE*mNumEffects+2] = ((Static3D)ve.mCenter).getZ();

        }

      long ret= addBase(ve);

      postprocess(mNumEffects-1); //addBase just incremented mNumEffects

      return ret;

      }

    return -1;

    }

  }