title: Alternative for glBlitFrameBuffer() in OpenGL ES 2.0
body: <p>My Android program must use <code>glBlitFrameBuffer()</code> function to copy <code>FrameBuffer</code> object. But <code>glBlitFrameBuffer()</code> function is only supported on OpenGL ES 3.0+ devices. I want to support OpenGL ES 2.0+ devices.</p>
  
  <p>Is there any solution/alternative for this function?</p>