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/>.                            //

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

import android.opengl.GLES20;

import org.distorted.library.type.Data4D;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static4D;

  private static int mNumEffectsH;

  private static int mTypeH;

  private static int mUniformsH;

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

    }

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

  static void getUniforms(int mProgramH)

    {

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

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

    mUniformsH  = GLES20.glGetUniformLocation( mProgramH, "fUniforms");

    }

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

  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++)

      {

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

          EffectMessageSender.newMessage( mListeners.elementAt(j),

                                          null);

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

          {

          remove(i);

          i--;

          continue;

          }

        }

      mCurrentDuration[i] += step;

      }

    mTime = currTime;  

    }

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

  protected void moveEffect(int index)

    {

    mBuf[4*index  ] = mBuf[4*index+4];

    mBuf[4*index+1] = mBuf[4*index+5];

    mBuf[4*index+2] = mBuf[4*index+6];

    mBuf[4*index+3] = mBuf[4*index+7];

    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];  

    }

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

  synchronized void send() 

    {

    GLES20.glUniform1i( mNumEffectsH, mNumEffects);

    if( mNumEffects>0 )

      {     

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

    }

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

  synchronized void sendZero() 

    {

    GLES20.glUniform1i( mNumEffectsH, 0);

    }

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

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

// 1) move all Points and scale all Region radii by a ModelView matrix

// 2) in case of macroblock, pre-compute some values so that we don't have to do it in the fragment shader.

  void postprocess(float[] MVmatrix)

    {

    if( mNumEffects>0 )

      {

      float tx,ty;   

      float w = (float)Math.sqrt(MVmatrix[0]*MVmatrix[0] + MVmatrix[4]*MVmatrix[4]);  // The scale factors are the lengths of the first 3 vectors of the upper-left 3x3 submatrix; here

      float h = (float)Math.sqrt(MVmatrix[1]*MVmatrix[1] + MVmatrix[5]*MVmatrix[5]);  // m[2]=m[6]=m[8]=m[9]=0 so it is really only the upper-left 2x2 matrix.

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

        {   

        tx = mBuf[4*i  ]-mObjHalfX; // we have to invert y and move everything by (half of bmp width, half of bmp height)

        ty =-mBuf[4*i+1]+mObjHalfY; //

        mUniforms[NUM_UNIFORMS*i+4] = MVmatrix[0]*tx + MVmatrix[4]*ty + MVmatrix[12]; // multiply the ModelView matrix times the (x,y,0,1) point, i.e. the (x,y) point on the surface of the bitmap.

        mUniforms[NUM_UNIFORMS*i+5] = MVmatrix[1]*tx + MVmatrix[5]*ty + MVmatrix[13]; //

        mUniforms[NUM_UNIFORMS*i+6] = w*mBuf[4*i+2];                                  // in fragment shader rx and ry radii are the last two values of the second vec4

        mUniforms[NUM_UNIFORMS*i+7] = h*mBuf[4*i+3];                                  //

          {

          mUniforms[NUM_UNIFORMS*i+1] = 2.0f*mObjHalfX/mUniforms[NUM_UNIFORMS*i];

          mUniforms[NUM_UNIFORMS*i+2] = 2.0f*mObjHalfY/mUniforms[NUM_UNIFORMS*i];

          }

        }

      }

    }

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

  synchronized long add(EffectNames eln, Data1D data)

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

      mBuf[4*mNumEffects+3] = 1000*mObjHalfY;

      }

    return -1;

    }

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

        {

        mBuf[4*mNumEffects+1] = ((Static4D)region).getY();

        mBuf[4*mNumEffects+2] = ((Static4D)region).getZ();

        mBuf[4*mNumEffects+3] = ((Static4D)region).getW();

      }

    return -1;

    }

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

  synchronized long add(EffectNames eln, Data1D level, Static3D color, Data4D region)

      mUniforms[NUM_UNIFORMS*mNumEffects+2] = color.getY();

      mUniforms[NUM_UNIFORMS*mNumEffects+3] = color.getZ();

      if( region instanceof Dynamic4D)

        {

        mBuf[4*mNumEffects+1] = ((Static4D)region).getY();

        mBuf[4*mNumEffects+2] = ((Static4D)region).getZ();

        mBuf[4*mNumEffects+3] = ((Static4D)region).getW();

      }

    return -1;

    }

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

      mUniforms[NUM_UNIFORMS*mNumEffects+2] = color.getY();

      mUniforms[NUM_UNIFORMS*mNumEffects+3] = color.getZ();

      mBuf[4*mNumEffects+3] = 1000*mObjHalfY;  //

      }

    return -1;

    }

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

  synchronized long add(EffectNames eln, Data4D chroma, Data4D region)

        mUniforms[NUM_UNIFORMS*mNumEffects+1] = ((Static4D)chroma).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+2] = ((Static4D)chroma).getZ();

        mUniforms[NUM_UNIFORMS*mNumEffects+3] = ((Static4D)chroma).getW();

        {

        mBuf[4*mNumEffects+1] = ((Static4D)region).getY();

        mBuf[4*mNumEffects+2] = ((Static4D)region).getZ();

        mBuf[4*mNumEffects+3] = ((Static4D)region).getW();

      }

    return -1;

    }

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

        mUniforms[NUM_UNIFORMS*mNumEffects+1] = ((Static4D)chroma).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+2] = ((Static4D)chroma).getZ();

        mUniforms[NUM_UNIFORMS*mNumEffects+3] = ((Static4D)chroma).getW();

      mBuf[4*mNumEffects+3] = 1000*mObjHalfY;  //

      }

    return -1;

    }

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

// end of FragmentEffect   

  }