set opengl Color - Java javax.media.opengl

Java examples for javax.media.opengl:GL2ES1

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Description

set opengl Color

Demo Code

/*/*from www.  j  a  va 2s  . c  o  m*/
 * Copyright 2013 Brandon Borkholder
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import java.awt.Color;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.media.opengl.GL;
import javax.media.opengl.GL2ES1;

public class Main{
    public static void setColor(GL2ES1 gl, Color c, float preMultiplyAlpha) {
        int rgb = c.getRGB();
        gl.glColor4ub((byte) (rgb >> 16 & 0xFF), (byte) (rgb >> 8 & 0xFF),
                (byte) (rgb & 0xFF),
                (byte) ((rgb >> 24 & 0xFF) * preMultiplyAlpha));
    }
}

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