VisClient/org/dronus/gl/Buffers.java

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/*
 * Created on 07.03.2005
 *
 */
package org.dronus.gl;


import java.nio.FloatBuffer;
import java.nio.IntBuffer;

import org.lwjgl.BufferUtils;
import org.lwjgl.util.vector.Vector3f;

public class Buffers  {
        

        static final IntBuffer INTBUFFER=BufferUtils.createIntBuffer(1);
        static final FloatBuffer MATRIXBUFFER=BufferUtils.createFloatBuffer(16);
        static final FloatBuffer VECTORBUFFER=BufferUtils.createFloatBuffer(4);
        
        static public IntBuffer getIntBuffer(){
                INTBUFFER.clear();
                return INTBUFFER;
        }       
        public static IntBuffer i(int i) {
                IntBuffer ib=getIntBuffer();
                ib.put(i); ib.flip();
                return ib;
        }       
        static public FloatBuffer matrixBuffer(){
                MATRIXBUFFER.clear();
                return MATRIXBUFFER;
        }       

        static public FloatBuffer buffer(Vector3f v){
                VECTORBUFFER.clear();
                v.store(VECTORBUFFER);
                VECTORBUFFER.flip();
                return VECTORBUFFER;
        }
        
        
        
        static public FloatBuffer floatArrayBuffer(float[] f){
                FloatBuffer fp=BufferUtils.createFloatBuffer(f.length).put(f);
                fp.flip();
                return fp;
        }
        static public FloatBuffer f4(float f1, float f2, float f3, float f4 ){return floatArrayBuffer(new float[]{f1,f2,f3,f4});}


        static float randomcolor=0;
        public static FloatBuffer randomDebugColor(){
                randomcolor+=1.0001f;
                return Buffers.f4(randomcolor%2, (randomcolor/2)%2, 1-(randomcolor%2), 1);
        }
}

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