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 org.distorted.library.type.Data3D;

import org.distorted.library.type.Data4D;

import org.distorted.library.type.Dynamic1D;

import org.distorted.library.type.Dynamic3D;

import org.distorted.library.type.Dynamic4D;

import org.distorted.library.type.DynamicQuat;

import org.distorted.library.type.Static1D;

import org.distorted.library.type.Static3D;

import org.distorted.library.type.Static4D;

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

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

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

  private static int mMVPMatrixH; // pass in the transformation matrix

  private static int mMVMatrixH;  // pass in the modelview matrix.

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

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

  private static void multiplyByQuat(float[] matrix, float X, float Y, float Z, float W)

    {

    float xx= X * X;

    float xy= X * Y;

    float xz= X * Z;

    float xw= X * W;

    float yy= Y * Y;

    float yz= Y * Z;

    float yw= Y * W;

    float zz= Z * Z;

    float zw= Z * W;

    mTmpMatrix[0]  = 1 - 2 * ( yy + zz );

    mTmpMatrix[1]  =     2 * ( xy - zw );

    mTmpMatrix[2]  =     2 * ( xz + yw );

    mTmpMatrix[4]  =     2 * ( xy + zw );

    mTmpMatrix[5]  = 1 - 2 * ( xx + zz );

    mTmpMatrix[6]  =     2 * ( yz - xw );

    mTmpMatrix[8]  =     2 * ( xz - yw );

    mTmpMatrix[9]  =     2 * ( yz + xw );

    mTmpMatrix[10] = 1 - 2 * ( xx + yy );

    mTmpMatrix[3]  = mTmpMatrix[7] = mTmpMatrix[11] = mTmpMatrix[12] = mTmpMatrix[13] = mTmpMatrix[14] = 0;

    mTmpMatrix[15] = 1;

    Matrix.multiplyMM(mMVPMatrix, 0, matrix, 0, mTmpMatrix, 0);  

    matrix[ 0] = mMVPMatrix[ 0];

    matrix[ 1] = mMVPMatrix[ 1];

    matrix[ 2] = mMVPMatrix[ 2];

    matrix[ 3] = mMVPMatrix[ 3];

    matrix[ 4] = mMVPMatrix[ 4];

    matrix[ 5] = mMVPMatrix[ 5];

    matrix[ 6] = mMVPMatrix[ 6];

    matrix[ 7] = mMVPMatrix[ 7];

    matrix[ 8] = mMVPMatrix[ 8];

    matrix[ 9] = mMVPMatrix[ 9];

    matrix[10] = mMVPMatrix[10];

    matrix[11] = mMVPMatrix[11];

    matrix[12] = mMVPMatrix[12];

    matrix[13] = mMVPMatrix[13];

    matrix[14] = mMVPMatrix[14];

    matrix[15] = mMVPMatrix[15];

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

      {

        y = mUniforms[NUM_UNIFORMS*i+5];

        z = mUniforms[NUM_UNIFORMS*i+6];

        Matrix.rotateM( mViewMatrix, 0, mUniforms[NUM_UNIFORMS*i], mUniforms[NUM_UNIFORMS*i+1], mUniforms[NUM_UNIFORMS*i+2], mUniforms[NUM_UNIFORMS*i+3]);

        Matrix.translateM(mViewMatrix, 0,-x, y,-z);

        y = mUniforms[NUM_UNIFORMS*i+5];

        z = mUniforms[NUM_UNIFORMS*i+6];

        multiplyByQuat(mViewMatrix, mUniforms[NUM_UNIFORMS*i], mUniforms[NUM_UNIFORMS*i+1], mUniforms[NUM_UNIFORMS*i+2], mUniforms[NUM_UNIFORMS*i+3]);

        Matrix.translateM(mViewMatrix, 0,-x, y,-z);

        sy = mUniforms[NUM_UNIFORMS*i+1];

        sz = mUniforms[NUM_UNIFORMS*i+2];

        sy = mUniforms[NUM_UNIFORMS*i+1];

        sz = mUniforms[NUM_UNIFORMS*i+2];

        sy = mUniforms[NUM_UNIFORMS*i+1];

        sz = mUniforms[NUM_UNIFORMS*i+2];

        x  = mUniforms[NUM_UNIFORMS*i+4];

        y  = mUniforms[NUM_UNIFORMS*i+5];

        z  = mUniforms[NUM_UNIFORMS*i+6];

        mViewMatrix[5] += sx*mViewMatrix[1]; //                        0 1 0 0

        mViewMatrix[6] += sx*mViewMatrix[2]; //                        0 0 1 0

        mViewMatrix[7] += sx*mViewMatrix[3]; //                        0 0 0 1

        mViewMatrix[1] += sy*mViewMatrix[5]; //                        y 1 0 0

        mViewMatrix[2] += sy*mViewMatrix[6]; //                        0 0 1 0

        mViewMatrix[3] += sy*mViewMatrix[7]; //                        0 0 0 1

        mViewMatrix[5] += sz*mViewMatrix[9]; //                        0 1 0 0

        mViewMatrix[6] += sz*mViewMatrix[10];//                        0 z 1 0

        mViewMatrix[7] += sz*mViewMatrix[11];//                        0 0 0 1

      }

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

  static void getUniforms(int mProgramH)

    {

    mDepthH    = GLES30.glGetUniformLocation(mProgramH, "u_Depth");

    mMVPMatrixH= GLES30.glGetUniformLocation(mProgramH, "u_MVPMatrix");

    mMVMatrixH = GLES30.glGetUniformLocation(mProgramH, "u_MVMatrix"); 

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

  float[] getMVP()

    {

    return mMVPMatrix;

    }

// return true if in the queue there are only translations, scales, x- and y-shears, and rotations along

// a vector which is perpendicular to the screen, i.e. if the resulting matrix keeps the front wall of the

// Mesh parallel to the screen.

  boolean canUseShortcut()

    {

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

      {

      if (mName[i] == EffectNames.ROTATE.ordinal() )

        {

        if( mUniforms[NUM_UNIFORMS*i] != 0.0f || mUniforms[NUM_UNIFORMS*i+1] != 0.0f ) return false;  // rotation along vector with x or y non-zero

        }

      else if(mName[i] == EffectNames.QUATERNION.ordinal() )

        {

        if( mUniforms[NUM_UNIFORMS*i] != 0.0f || mUniforms[NUM_UNIFORMS*i+1] != 0.0f ) return false;  // quaternion rotation along vector with x or y non-zero

        }

      else if(mName[i] == EffectNames.SHEAR.ordinal() )

        {

        if( mUniforms[NUM_UNIFORMS*i+2] != 0.0f ) return false; // shear with non-zero Z

        }

      }

    return true;

    }

  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( mInter[0][i]!=null && mInter[0][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.MATRIX.type,

                                          mName[i],

                                          mObjectID);

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

          {

          remove(i);

          i--;

          continue;

          }

        else mInter[0][i] = null;

        }

      if( mInter[1][i]!=null )

        {

        mInter[1][i].interpolateMain(mUniforms, NUM_UNIFORMS*i+4, mCurrentDuration[i], step);

        }

      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];

    }

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

    GLES30.glUniformMatrix4fv(mMVPMatrixH, 1, false, mMVPMatrix , 0);

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

// here construct the ModelView Matrix, but without any effects

    Matrix.setIdentityM(mTmpMatrix, 0);

    Matrix.multiplyMM(mMVPMatrix, 0, projection.mProjectionMatrix, 0, mTmpMatrix, 0);

    GLES30.glUniformMatrix4fv(mMVPMatrixH, 1, false, mMVPMatrix, 0);

    if( mMax[INDEX]>mNumEffects )

      {

        {

        mInter[0][mNumEffects] = (Dynamic3D)vector;

        }

        {

        mUniforms[NUM_UNIFORMS*mNumEffects+1] = ((Static3D)vector).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+2] = ((Static3D)vector).getZ();

      else return -1;

      return addBase(eln);

      }

    return -1;

    }

        {

        mInter[0][mNumEffects] = (Dynamic1D)angle;

        }

        {

      else return -1;

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

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

        {

        mInter[1][mNumEffects] = (Dynamic3D)center;

        }

        {

        mInter[1][mNumEffects] = null;

        mUniforms[NUM_UNIFORMS*mNumEffects+4] = ((Static3D)center).getX();

        mUniforms[NUM_UNIFORMS*mNumEffects+5] = ((Static3D)center).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+6] = ((Static3D)center).getZ();

        }

      else return -1;

      }

    return -1;

    }

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

        {

        mInter[0][mNumEffects] = (Dynamic4D)data;

        }

      else if( data instanceof DynamicQuat)

        {

        mInter[0][mNumEffects] = (DynamicQuat)data;

        }

        {

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

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

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

        }

      else return -1;

        {

        mInter[1][mNumEffects] = (Dynamic3D)center;

        }

        {

        mInter[1][mNumEffects] = null;

        mUniforms[NUM_UNIFORMS*mNumEffects+4] = ((Static3D)center).getX();

        mUniforms[NUM_UNIFORMS*mNumEffects+5] = ((Static3D)center).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+6] = ((Static3D)center).getZ();

      else return -1;

      }

    }

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

        {

        mInter[0][mNumEffects] = (Dynamic3D)shear;

        }

        mUniforms[NUM_UNIFORMS*mNumEffects  ] = ((Static3D)shear).getX();

        mUniforms[NUM_UNIFORMS*mNumEffects+1] = ((Static3D)shear).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+2] = ((Static3D)shear).getZ();

      else return -1;

        {

        mInter[1][mNumEffects] = (Dynamic3D)center;

        }

        mUniforms[NUM_UNIFORMS*mNumEffects+4] = ((Static3D)center).getX();

        mUniforms[NUM_UNIFORMS*mNumEffects+5] = ((Static3D)center).getY();

        mUniforms[NUM_UNIFORMS*mNumEffects+6] = ((Static3D)center).getZ();

      else return -1;

      }

    return -1;

    }

  }