This method is used by an ImageConsumer to request that the
ImageProducer attempt to resend the image data one more time
in TOPDOWNLEFTRIGHT order so that higher quality conversion
algorithms which depend on receiving pixels in order can be
used to produce a better output version of the image.
This method both registers the given ImageConsumer object
as a consumer and starts an immediate reconstruction of the
image data which will then be delivered to this consumer and
any other consumer which may have already been registered
with the producer.