code: public static void enableSharedContext() throws SlickException {
  		try {
  			SHARED_DRAWABLE = new Pbuffer(64, 64, new PixelFormat(8, 0, 0), null);
  		} catch (LWJGLException e) {
  			throw new SlickException("Unable to create the pbuffer used for shard context, buffers not supported", e);
  		}
  	}
docs: Enable shared OpenGL context. After calling this all containers created
  will shared a single parent context
  
  @throws SlickException Indicates a failure to create the shared drawable