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;

import android.opengl.GLES20;

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

class EffectQueueVertex extends EffectQueue

  { 

  private static final int NUM_UNIFORMS = 9;

  private static final int INDEX = EffectTypes.VERTEX.ordinal();

  private static int mNumEffectsH;

  private static int mTypeH;

  private static int mUniformsH;

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

  public EffectQueueVertex(DistortedObject obj)

    { 

    super(obj,NUM_UNIFORMS,INDEX);

    }

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

  static void getUniforms(int mProgramH)

    {

    mNumEffectsH= GLES20.glGetUniformLocation( mProgramH, "vNumEffects");

    mTypeH      = GLES20.glGetUniformLocation( mProgramH, "vType");

    mUniformsH  = GLES20.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++)

      {

      if( mInterI[i]==null ) continue;    

      if( mInterP[i]!=null ) 

        {

        mInterP[i].interpolateMain(mUniforms, NUM_UNIFORMS*i+7, mCurrentDuration[i]);

        mUniforms[NUM_UNIFORMS*i+7] = mUniforms[NUM_UNIFORMS*i+7]-mObjHalfX;

        mUniforms[NUM_UNIFORMS*i+8] =-mUniforms[NUM_UNIFORMS*i+8]+mObjHalfY;

        }

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

        {

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

          EffectMessageSender.newMessage( mListeners.elementAt(j),

                                          EffectMessage.EFFECT_FINISHED, 

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

                                          mType[i], 

                                          mBitmapID,

                                          null);

        if( EffectNames.isUnity(mType[i], mUniforms, NUM_UNIFORMS*i) )

          {

          remove(i);

          i--;

          continue;

          }

        }

      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];

    mUniforms[NUM_UNIFORMS*index+5] = mUniforms[NUM_UNIFORMS*(index+1)+5];

    mUniforms[NUM_UNIFORMS*index+6] = mUniforms[NUM_UNIFORMS*(index+1)+6];

    mUniforms[NUM_UNIFORMS*index+7] = mUniforms[NUM_UNIFORMS*(index+1)+7];

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

    }

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

  synchronized void send() 

    {

    GLES20.glUniform1i( mNumEffectsH, mNumEffects);

    if( mNumEffects>0 )

      {     

      GLES20.glUniform1iv( mTypeH    ,  mNumEffects, mType    ,0);

      GLES20.glUniform3fv( mUniformsH,3*mNumEffects, mUniforms,0);

      }

    }

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

  synchronized void sendZero() 

    {

    GLES20.glUniform1i( mNumEffectsH, 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, pre-compute the sine and cosine of its rotation angle

  void postprocess()

    {

    double d;  

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

      {      

      if( mType[i]==EffectNames.SWIRL.ordinal() )

        {

        d = Math.PI*mUniforms[NUM_UNIFORMS*i]/180;  

        mUniforms[NUM_UNIFORMS*i+1] = (float)Math.sin(d);

        mUniforms[NUM_UNIFORMS*i+2] = (float)Math.cos(d);

        }

      }

    }

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

  synchronized long add(EffectNames eln, Interpolator inter, Float4D region, Interpolator2D point)

    {

    if( mMax[INDEX]>mNumEffects )

      {

      EffectNames.fillWithUnities(eln.ordinal(), mUniforms, NUM_UNIFORMS*mNumEffects);    

      mInterI[mNumEffects] = inter;

      mInterP[mNumEffects] = point;

      return addPriv(eln,region);

      }

    return -1;

    }

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

  synchronized long add(EffectNames eln, Interpolator inter, Float4D region, Float2D point)

    {

    if( mMax[INDEX]>mNumEffects )

      {

      EffectNames.fillWithUnities(eln.ordinal(), mUniforms, NUM_UNIFORMS*mNumEffects);    

      mInterI[mNumEffects] = inter;

      mInterP[mNumEffects] = null;

      mUniforms[NUM_UNIFORMS*mNumEffects+7] = point.x-mObjHalfX;

      mUniforms[NUM_UNIFORMS*mNumEffects+8] =-point.y+mObjHalfY;

      return addPriv(eln,region);

      }

    return -1;

    }

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

  synchronized long add(EffectNames eln, float v1, float v2, float v3, Float4D region, Float2D point)

    {

    if( mMax[INDEX]>mNumEffects )

      {

      EffectNames.fillWithUnities(eln.ordinal(), mUniforms, NUM_UNIFORMS*mNumEffects); 

      mUniforms[NUM_UNIFORMS*mNumEffects  ] = v1;

      mUniforms[NUM_UNIFORMS*mNumEffects+1] = v2;  

      mUniforms[NUM_UNIFORMS*mNumEffects+2] = v3;  

      mInterI[mNumEffects] = null;

      mInterP[mNumEffects] = null;

      mUniforms[NUM_UNIFORMS*mNumEffects+7] = point.x-mObjHalfX;

      mUniforms[NUM_UNIFORMS*mNumEffects+8] =-point.y+mObjHalfY;

      return addPriv(eln,region);    

      }

    return -1;

    }

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

  private long addPriv(EffectNames eln, Float4D region)

    {    

    if( region!=null )

      {

      mUniforms[NUM_UNIFORMS*mNumEffects+3] = region.x;

      mUniforms[NUM_UNIFORMS*mNumEffects+4] =-region.y;   // invert y already

      mUniforms[NUM_UNIFORMS*mNumEffects+5] = region.z<=0.0f ? 1000*mObjHalfX : region.z;

      mUniforms[NUM_UNIFORMS*mNumEffects+6] = region.w;

      }

    else

      {

      mUniforms[NUM_UNIFORMS*mNumEffects+3] = 0.0f;

      mUniforms[NUM_UNIFORMS*mNumEffects+4] = 0.0f;

      mUniforms[NUM_UNIFORMS*mNumEffects+5] = 1000*mObjHalfX;

      mUniforms[NUM_UNIFORMS*mNumEffects+6] = 0.0f;

      }

    return addBase(eln);

    }

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

// end of VertexEffect  

  }