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Revision bc2ab8c5

Added by Leszek Koltunski over 4 years ago

ID bc2ab8c50244e13796dbb7de3334030f9a2f7ffb
Parent 22422a76
Child 5eb4cc34

Reading a mesh from the .dmesh file might work now. Checked on two small meshes.

     import org.distorted.library.program.DistortedProgram;
     import org.distorted.library.type.Static4D;
     import java.io.DataOutputStream;
     import java.io.FileNotFoundException;
     import java.io.FileOutputStream;
     import java.io.IOException;
     import java.io.DataInputStream;
     import java.nio.ByteBuffer;
     import java.nio.ByteOrder;
     import java.nio.FloatBuffer;
     import java.nio.channels.FileChannel;
     import java.util.ArrayList;
     ///////////////////////////////////////////////////////////////////////////////////////////////////
-...
          if( mJobNode[0]!=null )
+           {
            mJobNode[0].execute();  // this will set itself to null
     /*
            try
+             {
              String name = "/sdcard/"+mNumVertices+".dmesh";
              DataOutputStream dos = new DataOutputStream(new FileOutputStream(name));
              write(dos);
              android.util.Log.e("mesh", "file wrritten: "+name);
+             }
            catch(FileNotFoundException ex)
+             {
              android.util.Log.e("mesh", "file not found exception: "+ex.toString());
+             }
      */
+           }
          int index1 = mVBO1.createImmediately(mNumVertices*VERT1_SIZE, mVertAttribs1);
-...
     ///////////////////////////////////////////////////////////////////////////////////////////////////
        void read(FileChannel file) throws IOException
        void read(DataInputStream stream)
+         {
          ByteBuffer buffer = ByteBuffer.allocate(BYTES_PER_FLOAT*4);
          int version, numVertices=0, numEff=0, numTex=0;
          byte[] buffer = new byte[BYTES_PER_FLOAT*4];
          int version, numEff, numTex;
          try
+           {
            file.read(buffer);
            stream.read(buffer);
            ByteBuffer byteBuf = ByteBuffer.wrap(buffer);
            version = buffer.getInt(0);
            version = byteBuf.getInt(0);
            if( version==1 )
+             {
              numVertices = buffer.getInt(4);
              numTex      = buffer.getInt(8);
              numEff      = buffer.getInt(12);
              mNumVertices= byteBuf.getInt(4);
              numTex      = byteBuf.getInt(8);
              numEff      = byteBuf.getInt(12);
         //     android.util.Log.e("mesh", "version: "+version+" vert: "+mNumVertices+" numTex: "+numTex+" numEff: "+numEff);
+             }
            else
+             {
              android.util.Log.e("mesh", "Error: unknown mesh file version "+version);
              file.close();
              android.util.Log.e("mesh", "Error: unknown mesh file version "+String.format("0x%08X", version));
              return;
+             }
+           }
          catch(IOException e)
+           {
            file.close();
            throw e;
            android.util.Log.e("mesh", "IOException1 trying to read file: "+e.toString());
            return;
+           }
          if( numVertices>0 && numEff>0 && numTex>0 )
          if( mNumVertices>0 && numEff>0 && numTex>0 )
+           {
            int size = numEff+TEX_COMP_SIZE*numTex;
            float[] tmp = new float[size];
            mVertAttribs1 = new float[VERT1_SIZE*mNumVertices];
            mVertAttribs2 = new float[VERT2_SIZE*mNumVertices];
            mVertAttribs1 = new float[VERT1_ATTRIBS*mNumVertices];
            mVertAttribs2 = new float[VERT2_ATTRIBS*mNumVertices];
            buffer = ByteBuffer.allocate(BYTES_PER_FLOAT*size + mNumVertices*(VERT1_SIZE+VERT2_SIZE));
            buffer = new byte[BYTES_PER_FLOAT*(size + mNumVertices*(VERT1_ATTRIBS+VERT2_ATTRIBS))];
            file.read(buffer);
            try
+             {
              stream.read(buffer);
+             }
            catch(IOException e)
+             {
              android.util.Log.e("mesh", "IOException2 trying to read file: "+e.toString());
              return;
+             }
            ByteBuffer byteBuf = ByteBuffer.wrap(buffer);
            FloatBuffer floatBuf = byteBuf.asFloatBuffer();
            buffer.asFloatBuffer().get(tmp,0,size);
            buffer.asFloatBuffer().get(mVertAttribs1, 0, VERT1_SIZE*mNumVertices);
            buffer.asFloatBuffer().get(mVertAttribs2, 0, VERT2_SIZE*mNumVertices);
            floatBuf.get(tmp,0,size);
     /*
     for(int f=0; f<size; f++)
+      {
       android.util.Log.e("mesh", "tmp "+f+": "+tmp[f]);
+      }
     */
            floatBuf.get(mVertAttribs1, 0, VERT1_ATTRIBS*mNumVertices);
            floatBuf.get(mVertAttribs2, 0, VERT2_ATTRIBS*mNumVertices);
     /*
     for(int f=0; f<mNumVertices; f++)
+      {
       android.util.Log.e("mesh", "vert "+f+": "+mVertAttribs1[9*f]+" "+mVertAttribs1[9*f+1]+" "+mVertAttribs1[9*f+2]+"   "+mVertAttribs1[9*f+3]+" "+mVertAttribs1[9*f+4]+" "+mVertAttribs1[9*f+5]+"   "+mVertAttribs1[9*f+6]+" "+mVertAttribs1[9*f+7]+" "+mVertAttribs1[9*f+8]);
+      }
     */
            TexComponent tex;
            int index, texComp;
            float x, y, z, w;
-...
              z= tmp[TEX_COMP_SIZE*texComp+3];
              w= tmp[TEX_COMP_SIZE*texComp+4];
     //android.util.Log.e("mesh", "tex comp "+texComp+" index="+index+" x="+x+" y="+y+" z="+z+" w="+w);
              tex = new TexComponent(index);
              tex.setMap(new Static4D(x,y,z,w));
-...
+             {
              index = (int)tmp[TEX_COMP_SIZE*texComp + effComp ];
              mEffComponent.add(index);
     //android.util.Log.e("mesh", "eff comp "+effComp+" index="+index);
+             }
+           }
          file.close();
+         }
     ///////////////////////////////////////////////////////////////////////////////////////////////////
-...
     /**
      * Write the Mesh to a File.
      */
        public void write(FileChannel file) throws IOException
        public void write(DataOutputStream stream)
+         {
          TexComponent tex;
          int numTex = mTexComponent.size();
          int numEff = mEffComponent.size();
          ByteBuffer buffer = ByteBuffer.allocate(BYTES_PER_FLOAT*(numEff+TEX_COMP_SIZE*numTex+4));
          FloatBuffer buf  = buffer.asFloatBuffer();
          buf.put(1);             // version
          buf.put(mNumVertices);
          buf.put(numTex);
          buf.put(numEff);
          for(int i=0; i<numTex; i++)
          try
+           {
            tex = mTexComponent.get(i);
            stream.writeInt(1);  // version
            stream.writeInt(mNumVertices);
            stream.writeInt(numTex);
            stream.writeInt(numEff);
            buf.put(tex.mEndIndex);
            buf.put(tex.mTextureMap.get0());
            buf.put(tex.mTextureMap.get1());
            buf.put(tex.mTextureMap.get2());
            buf.put(tex.mTextureMap.get3());
+           }
            for(int i=0; i<numTex; i++)
+             {
              tex = mTexComponent.get(i);
          for(int i=0; i<numEff; i++)
+           {
            buf.put(mEffComponent.get(i));
+           }
              stream.writeFloat((float)tex.mEndIndex);
              stream.writeFloat(tex.mTextureMap.get0());
              stream.writeFloat(tex.mTextureMap.get1());
              stream.writeFloat(tex.mTextureMap.get2());
              stream.writeFloat(tex.mTextureMap.get3());
+             }
          ByteBuffer vertBuf1 = ByteBuffer.allocate(VERT1_SIZE*mNumVertices);
          vertBuf1.asFloatBuffer().put(mVertAttribs1);
          ByteBuffer vertBuf2 = ByteBuffer.allocate(VERT2_SIZE*mNumVertices);
          vertBuf2.asFloatBuffer().put(mVertAttribs2);
            for(int i=0; i<numEff; i++)
+             {
              stream.writeFloat((float)mEffComponent.get(i));
+             }
          try
+           {
            file.write(buffer);
            file.write(vertBuf1);
            file.write(vertBuf2);
            ByteBuffer vertBuf1 = ByteBuffer.allocate(VERT1_SIZE*mNumVertices);
            vertBuf1.asFloatBuffer().put(mVertAttribs1);
            ByteBuffer vertBuf2 = ByteBuffer.allocate(VERT2_SIZE*mNumVertices);
            vertBuf2.asFloatBuffer().put(mVertAttribs2);
            stream.write(vertBuf1.array());
            stream.write(vertBuf2.array());
+           }
          catch(IOException e)
          catch(IOException ex)
+           {
            file.close();
            throw e;
            android.util.Log.e("mesh", "IOException trying to write a mesh: "+ex.toString());
+           }
          file.close();
+         }
     ///////////////////////////////////////////////////////////////////////////////////////////////////

     package org.distorted.library.mesh;
     import java.io.IOException;
     import java.nio.channels.FileChannel;
     import java.io.DataInputStream;
     ///////////////////////////////////////////////////////////////////////////////////////////////////
-...
      * <p>
      * File format: as written by MeshBase.write().
      */
       public MeshFile(FileChannel file)
       public MeshFile(DataInputStream stream)
+        {
         super();
         try
+          {
           read(file);
+          }
         catch(IOException ex)
+          {
           android.util.Log.e("MeshFile", "exception reading file: "+ex.toString());
+          }
         read(stream);
+        }
     ///////////////////////////////////////////////////////////////////////////////////////////////////

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Distorted Android

Revision bc2ab8c5

Added by Leszek Koltunski over 4 years ago