Distorted Android

// 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                          //

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

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

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

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

package org.distorted.library.effectqueue;

import android.opengl.GLES31;

import android.opengl.Matrix;

import org.distorted.library.effect.EffectType;

import org.distorted.library.effect.MatrixEffect;

import org.distorted.library.message.EffectMessageSender;

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

class EffectQueueMatrix extends EffectQueue

  {   

  private static final int NUM_UNIFORMS = MatrixEffect.NUM_UNIFORMS;

  private static final int INDEX = EffectType.MATRIX.ordinal();

  private static int[] mObjDH      = new int[MAIN_VARIANTS];

  private static float[] mTmpMatrix = new float[16];

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

  EffectQueueMatrix()

    { 

    super(NUM_UNIFORMS,INDEX );

    }

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

  static void uniforms(int mProgramH, int variant)

    {

    mObjDH[variant]     = GLES31.glGetUniformLocation(mProgramH, "u_objD");

    }

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

// return a float which describes how much larger an object must be so that it appears to be (about)

// 'marginInPixels' pixels larger in each direction. Used in Postprocessing.

  float magnify(float[] projection, int width, int height, float mipmap, float halfX, float halfY, float halfZ, float marginInPixels)

    {

    Matrix.multiplyMM(mTmpMatrix, 0, projection, 0, mViewMatrix, 0);

    float xLenInPixels = width *(mMaxX-mMinX)/2;

    // already margin / avg(xLen,yLen) is the size of the halo.

    // Here we need a bit more because we are marking not only the halo, but a little bit around

    // ( 4.0 because there is an extra 2.0 from the avg(xLen,yLen) )

    //

    // mMipmap ( 1.0, 0.5, 0.25, 0.125 ) - we need to make the size of the halo independent

    // of postprocessing effect quality.

    return mipmap*4.0f*marginInPixels/( xLenInPixels+yLenInPixels );

    }

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

  void compute(long currTime)

    {

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

      mCurrentDuration[i] += step;

      if( mEffects[i].compute(mUniforms, NUM_UNIFORMS*i, mCurrentDuration[i], step) )

        {

        EffectMessageSender.newMessage(mEffects[i]);

        }

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

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

  void send(int width, int height, float distance, float mipmap, float[] projection, float halfX, float halfY, float halfZ, int variant)

    {

    Matrix.translateM(mViewMatrix, 0, -width*0.5f, -height*0.5f, -distance);

    if( mipmap!=1 ) Matrix.scaleM(mViewMatrix, 0, mipmap, mipmap, mipmap);

    for(int i=mNumEffects-1; i>=0; i--) ((MatrixEffect)mEffects[i]).apply(mViewMatrix,mUniforms,i);

    Matrix.translateM(mViewMatrix, 0, halfX,halfY,halfZ);

    Matrix.multiplyMM(mMVPMatrix, 0, projection, 0, mViewMatrix, 0);

    GLES31.glUniform3f( mObjDH[variant] , halfX, halfY, halfZ);

    }

  }