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Nifty Renderer for JOGL

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/*
 * Created on 20.02.2005
 */
package de.lessvoid.nifty.renderer.jogl.render.font;

import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.util.logging.Logger;

import javax.annotation.Nonnull;

import com.jogamp.common.nio.Buffers;
import com.jogamp.opengl.GL;
import com.jogamp.opengl.GLContext;
import com.jogamp.opengl.glu.GLU;

/**
 * @author void
 */
public class Tools {
  private static final Logger log = Logger.getLogger(Tools.class.getName());

  private static GLU glu;

  /**
   * @param fkt
   */
  public static void checkGLError(String fkt) {
    // return;
    final GL gl = GLContext.getCurrentGL();
    int error = gl.glGetError();
    if (error != GL.GL_NO_ERROR) {
      if (glu == null) {
        glu = GLU.createGLU(gl);
      }
      String glerrmsg = glu.gluErrorString(error);
      log.warning("OpenGL Error: (" + error + ") " + glerrmsg + ", " + fkt);
    }

  }

  public static ByteBuffer toByteString(@Nonnull String str, boolean isNullTerminated) {
    int length = str.length();
    if (isNullTerminated) {
      length++;
    }
    ByteBuffer buff = Buffers.newDirectByteBuffer(length);
    try {
      buff.put(str.getBytes("UTF-8"));
    } catch (UnsupportedEncodingException e) {
      log.severe("Failed to encode string.");
    }

    if (isNullTerminated) {
      buff.put((byte) 0);
    }

    buff.flip();
    return buff;
  }
}