package com.denny.sample4_1;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.ShortBuffer;

public class BufferUtil
{
    private static ByteBuffer GetBuffer(int len,int bytes)
    {
        ByteBuffer bb=ByteBuffer.allocate(len*bytes);
        // use the device hardware‘s native byte order
        bb.order(ByteOrder.nativeOrder());
        return bb;
    }

    public static FloatBuffer Create(float[] arr)
    {
        FloatBuffer buffer=GetBuffer(arr.length,4).asFloatBuffer();
        // add the coordinates to the FloatBuffer
        buffer.put(arr);
        // set the buffer to read the first coordinate
        buffer.position(0);
        return buffer;
    }

    public static ShortBuffer Create(short[] arr)
    {
        ShortBuffer buffer=GetBuffer(arr.length,2).asShortBuffer();
        // add the coordinates to the FloatBuffer
        buffer.put(arr);
        // set the buffer to read the first coordinate
        buffer.position(0);
        return buffer;
    }
}