gistfile1.txt

  IntBuffer getsetBuffer = BufferUtil.newIntBuffer(1);
//  int getset[] = new int[1];

  public int get(int x, int y) {
    gl.glReadPixels(x, y, 1, 1, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, getsetBuffer);
//    gl.glReadPixels(x, y, 1, 1, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, getset, 0);
    int getset = getsetBuffer.get(0);

    if (BIG_ENDIAN) {
      return 0xff000000 | ((getset >> 8)  & 0x00ffffff);

    } else {
      return 0xff000000 |
            ((getset << 16) & 0xff0000) |
            (getset & 0xff00) |
            ((getset >> 16) & 0xff);
    }
  }