(l)rectwrite

[Lloyd J. Lacomb]

Like Mike I have noticed the slow performance of the (l)rectwrite routines
when I have to draw each line individually as opposed to drawing all the
lines in one call.  Since the explanation seems to have to do with the
internal hardware/DMA configuration, I have an additional question
about (l)rectwrite.  Why are the (l)rectwrite routines fixed to only
accept only data in 1st quadrant (i.e. y2 > y1) format rather than
being versitaile enough to figure out that if y2 < y1, the image
is in 4th quadrant form.  It would seem that the routines could
then pipeline the data in some hardware effcient manner to the
memory rather than having the user issue the call for each line
of the data.  I suppose that the routines should be general enough
to deal with 2nd and 3rd quadrant data but since that is another
issue lets keep the request simple.  Thanks for any help on this
matter.

Lloyd LaComb
lacomb at sierra.stanford.edu