Distorted Android

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

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

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

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

//                                                                                               //

// 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                             //

import java.nio.ByteOrder;

import java.nio.FloatBuffer;

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

   private static final int POS_DATA_SIZE= 3; // vertex coordinates: x,y,z

   private static final int NOR_DATA_SIZE= 3; // normal vector: x,y,z

   private static final int INF_DATA_SIZE= 3; // 'inflate' vector: x,y,z

   static final int POS_ATTRIB   = 0;

   static final int NOR_ATTRIB   = POS_DATA_SIZE;

   static final int INF_ATTRIB   = POS_DATA_SIZE + NOR_DATA_SIZE;

   private static final int OFFSET_NOR = NOR_ATTRIB*BYTES_PER_FLOAT;

   private static final int OFFSET_INF = INF_ATTRIB*BYTES_PER_FLOAT;

   private static final int OFFSET_TEX = TEX_ATTRIB*BYTES_PER_FLOAT;

   private static final int VERT2_SIZE = VERT2_ATTRIBS*BYTES_PER_FLOAT;

   private InternalBuffer mVBO1, mVBO2, mTFO; // main vertex buffer and transform feedback buffer

     private int mEndIndex;

       mTextureMap= new Static4D(0,0,1,1);

     Component(Component original)

       {

       mEndIndex = original.mEndIndex;

       float x = original.mTextureMap.get0();

       float y = original.mTextureMap.get1();

       float z = original.mTextureMap.get2();

       float w = original.mTextureMap.get3();

       mTextureMap = new Static4D(x,y,z,w);

     }

   private ArrayList<Component> mComponent;

     mInflate    = 0.0f;

     mComponent  = new ArrayList<>();

     mVBO2= new InternalBuffer(GLES30.GL_ARRAY_BUFFER             , GLES30.GL_STATIC_READ);

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

// copy constructor

     mInflate         = original.mInflate;

     int size = original.mComponent.size();

     mComponent = new ArrayList<>();

       {

       Component comp = new Component(original.mComponent.get(i));

       mComponent.add(comp);

       }

     System.arraycopy(original.mAssociation, 0, mAssociation, 0, MAX_COMPONENTS);

       {

       mVertAttribs1= new float[mNumVertices*VERT1_ATTRIBS];

       if( original.mJobNode[0]!=null )

         }

       else

         {

         deepCopyAttribs1(original);

     else

       {

       mVBO1         = original.mVBO1;

       mVertAttribs1 = original.mVertAttribs1;

     mVertAttribs2= new float[mNumVertices*VERT2_ATTRIBS];

     mVBO2.invalidate();

     mTFO = new InternalBuffer(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, GLES30.GL_STATIC_READ);

   public static int getMaxComponents()

     {

     return MAX_COMPONENTS;

     }

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

   public static void getUniforms(int mProgramH, int variant)

     {

     mComponentAssociationH[variant] = GLES30.glGetUniformLocation( mProgramH, "vComponAssoc");

     }

   void deepCopyAttribs1(MeshBase original)

     {

     System.arraycopy(original.mVertAttribs1,0,mVertAttribs1,0,mNumVertices*VERT1_ATTRIBS);

     mVBO1.invalidate();

     }

   void merge()

     {

     int num = mComponent.size();

     if( num>1 )

       {

       mComponent.clear();

       mComponent.add(new Component(mNumVertices-1));

       for(int index=0; index<mNumVertices; index++)

         {

         mVertAttribs2[VERT2_ATTRIBS*index+COM_ATTRIB] = 0;

         }

       mVBO2.invalidate();

       }

     }

   int numComponents()

     {

     return mComponent.size();

     }

     mVertAttribs1= vert1Attribs;

     mVertAttribs2= vert2Attribs;

     mVBO2.invalidate();

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

     int numVertices = origVertices;

       {

       System.arraycopy(mVertAttribs1, VERT1_ATTRIBS*(origVertices-1), newAttribs1, VERT1_ATTRIBS*origVertices, VERT1_ATTRIBS    );

       origVertices++;

       if( numVertices%2==1 )

         {

         System.arraycopy(mVertAttribs1, VERT1_ATTRIBS*(origVertices-1), newAttribs1, VERT1_ATTRIBS*origVertices, VERT1_ATTRIBS);

         origVertices++;

         }

       mesh = meshes[i];

         {

         System.arraycopy(mesh.mVertAttribs1, 0, newAttribs1, VERT1_ATTRIBS*origVertices, VERT1_ATTRIBS    );

         origVertices++;

         }

       System.arraycopy(mesh.mVertAttribs1, 0, newAttribs1, VERT1_ATTRIBS*origVertices, VERT1_ATTRIBS*numVertices);

       origVertices+=numVertices;

         origVertices++;

           origVertices++;

     mVBO1.invalidate();

     }

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

   private void joinAttrib2(MeshBase[] meshes, int origVertices)

     {

     MeshBase mesh;

     int numMeshes = meshes.length;

     int numVertices = origVertices;

     if( origVertices>0 )

       {

       System.arraycopy(mVertAttribs2, VERT2_ATTRIBS*(origVertices-1), newAttribs2, VERT2_ATTRIBS*origVertices, VERT2_ATTRIBS    );

         }

       }

       mesh = meshes[i];

         {

         }

           }

         }

       }

     if( origVertices!=mNumVertices )

       {

       android.util.Log.e("mesh", "join: origVertices: "+origVertices+" numVertices: "+mNumVertices);

       }

     for(int component=0; component<numComp; component++)

       {

       endIndex = mComponent.get(component).mEndIndex;

       for( ; index<=endIndex; index++) newAttribs2[VERT2_ATTRIBS*index+COM_ATTRIB] = component;

       }

     mVBO2.invalidate();

// called from MeshJoined

   void join(MeshBase[] meshes)

     {

     MeshBase mesh;

     Component comp;

     int origComponents=0, numComponents, numVertices, numMeshes = meshes.length;

     int origVertices = mNumVertices;

     if( origVertices>0 )

       {

       origComponents = mComponent.size();

       mNumVertices+= ( mNumVertices%2==1 ? 2:1 );

       mComponent.get(origComponents-1).mEndIndex = mNumVertices-1;

       }

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

       {

       mesh = meshes[i];

       numComponents = mesh.mComponent.size();

       numVertices = mesh.mNumVertices;

       int extraVerticesBefore = mNumVertices==0 ? 0:1;

       int extraVerticesAfter  = (i==numMeshes-1) ? 0 : (numVertices%2==1 ? 2:1);

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

         {

         comp = new Component(mesh.mComponent.get(j));

         comp.mEndIndex += (extraVerticesBefore+mNumVertices+extraVerticesAfter);

         mComponent.add(comp);

         if( origComponents<MAX_COMPONENTS )

           {

           mAssociation[origComponents] = mesh.mAssociation[j];

           origComponents++;

           }

         }

       mNumVertices += (extraVerticesBefore+numVertices+extraVerticesAfter);

       }

     if( mJobNode[0]!=null )

       {

       mJobNode[0] = DeferredJobs.join(this,meshes,origVertices);

       }

     else

       {

       joinAttrib1(meshes,origVertices);

       }

     joinAttrib2(meshes,origVertices);

     }

/**

 * Not part of public API, do not document (public only because has to be used from the main package)

 *

 * @y.exclude

 */

   public void copyTransformToVertex()

     {

                                                              TRAN_SIZE*mNumVertices, GLES30.GL_MAP_READ_BIT);

       {

       feedback.get(mVertAttribs1,0,VERT1_ATTRIBS*mNumVertices);

       mVBO1.update(mVertAttribs1);

     else

       {

       Log.e("mesh", "failed to map tf buffer, error="+error);

/**

 *

 * @y.exclude

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

/**

 *

 * @y.exclude

/**

 * Not part of public API, do not document (public only because has to be used from the main package)

 *

 * @y.exclude

 */

   public void send(int variant)

     {

     GLES30.glUniform1iv( mComponentAssociationH[variant], MAX_COMPONENTS, mAssociation, 0);

     }

 * Not part of public API, do not document (public only because has to be used from the main package)

 *

 * @y.exclude

 */

     int index2 = mVBO2.createImmediately(mNumVertices*VERT2_SIZE, mVertAttribs2);

     GLES30.glVertexAttribPointer(program.mAttribute[0], POS_DATA_SIZE, GLES30.GL_FLOAT, false, VERT1_SIZE, OFFSET_POS);

     GLES30.glVertexAttribPointer(program.mAttribute[1], NOR_DATA_SIZE, GLES30.GL_FLOAT, false, VERT1_SIZE, OFFSET_NOR);

     GLES30.glVertexAttribPointer(program.mAttribute[2], INF_DATA_SIZE, GLES30.GL_FLOAT, false, VERT1_SIZE, OFFSET_INF);

     GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, index2 );

     GLES30.glVertexAttribPointer(program.mAttribute[3], TEX_DATA_SIZE, GLES30.GL_FLOAT, false, VERT2_SIZE, OFFSET_TEX);

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

/**

 * Not part of public API, do not document (public only because has to be used from the main package)

 *

 * @y.exclude

 */

   public void bindTransformAttribs(DistortedProgram program)

     {

     GLES30.glVertexAttribPointer(program.mAttribute[0], POS_DATA_SIZE, GLES30.GL_FLOAT, false, 0, 0);

     GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, 0);

/**

 * Not part of public API, do not document (public only because has to be used from the main package)

 *

 * @y.exclude

 */

   public void setInflate(float inflate)

     {

     mInflate = inflate;

     }

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

/**

 * Not part of public API, do not document (public only because has to be used from the main package)

 *

 * @y.exclude

 */

   public float getInflate()

     {

     return mInflate;

     }

// PUBLIC API

/**

 * When rendering this Mesh, do we want to render the Normal vectors as well?

 * Will work only on OpenGL ES >= 3.0 devices.

 * @param show Controls if we render the Normal vectors or not.

 */

   public void setShowNormals(boolean show)

     {

/**

 * When rendering this mesh, should we also draw the normal vectors?

 *

 * @return <i>true</i> if we do render normal vectors

 */

   public boolean getShowNormals()

     {

     return mShowNormals;

     }

/**

 * Merge all components of this Mesh into a single one.

 */

   public void mergeComponents()

     {

     if( mJobNode==null )

       {

       merge();

       }

     else

       {

       mJobNode[0] = DeferredJobs.merge(this);

       }

     }

/**

 * Release all internal resources.

 */

   public void markForDeletion()

     {

     mVertAttribs2 = null;

     mVBO2.markForDeletion();

     }

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

/**

 * lazily executed only when the Mesh is used for rendering for the first time.

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

/**

 * For example maps[0] = new Static4D( 0.0, 0.5, 0.5, 0.5 ) sets the 0th component texture map to the

 * Probably the most common user case would be sending as many maps as there are components in this

 * Mesh. One can also send less, or more (the extraneous ones will be ignored) and set some of them

 * to null (those will be ignored as well). So if there are 5 components, and we want to set the map

 * of the 2nd and 4rd one, call this with

 * maps = new Static4D[4]

 * maps[0] = null

 * maps[1] = the map for the 2nd component

 * maps[2] = null

 * maps[3] = the map for the 4th component

 *

 * A map's width and height have to be non-zero (but can be negative!)

 * @param maps List of texture maps to apply to the texture's components.

     int num_maps = maps.length;

       if( newMap!=null )

         newH = newMap.get3();

           ratW = newW/oldMap.get2();

           ratH = newH/oldMap.get3();

           movX = newMap.get0() - ratW*oldMap.get0();

           movY = newMap.get1() - ratH*oldMap.get1();

             mVertAttribs2[index+1] = ratH*mVertAttribs2[index+1] + movY;

           comp.setMap(newMap);

       vertex= comp.mEndIndex+1;