/*
* Copyright (c) 2009-2012 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.bullet.util;
import com.jme3.scene.Mesh;
import com.jme3.scene.VertexBuffer.Type;
import com.jme3.scene.mesh.IndexBuffer;
import com.jme3.util.BufferUtils;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
/**
*
* @author normenhansen
*/
public class NativeMeshUtil {
public static long getTriangleIndexVertexArray(Mesh mesh){
ByteBuffer triangleIndexBase = BufferUtils.createByteBuffer(mesh.getTriangleCount() * 3 * 4);
ByteBuffer vertexBase = BufferUtils.createByteBuffer(mesh.getVertexCount() * 3 * 4);
int numVertices = mesh.getVertexCount();
int vertexStride = 12; //3 verts * 4 bytes per.
int numTriangles = mesh.getTriangleCount();
int triangleIndexStride = 12; //3 index entries * 4 bytes each.
IndexBuffer indices = mesh.getIndicesAsList();
FloatBuffer vertices = mesh.getFloatBuffer(Type.Position);
vertices.rewind();
int verticesLength = mesh.getVertexCount() * 3;
for (int i = 0; i < verticesLength; i++) {
float tempFloat = vertices.get();
vertexBase.putFloat(tempFloat);
}
int indicesLength = mesh.getTriangleCount() * 3;
for (int i = 0; i < indicesLength; i++) {
triangleIndexBase.putInt(indices.get(i));
}
vertices.rewind();
vertices.clear();
return createTriangleIndexVertexArray(triangleIndexBase, vertexBase, numTriangles, numVertices, vertexStride, triangleIndexStride);
}
public static native long createTriangleIndexVertexArray(ByteBuffer triangleIndexBase, ByteBuffer vertexBase, int numTraingles, int numVertices, int vertextStride, int triangleIndexStride);
}