Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!udel!new
From: new@udel.edu (Darren New)
Newsgroups: comp.sys.amiga
Subject: Re: a "mirror image" blit
Message-ID: <1797@nigel.udel.EDU>
Date: 16 Oct 89 13:34:14 GMT
References: <1647@nigel.udel.EDU> <5629@ucdavis.ucdavis.edu>
Sender: usenet@udel.EDU
Reply-To: new@udel.edu (Darren New)
Organization: University of Delaware
Lines: 6

I don't know how fast this would be, but you could use a
recursive algo to set up the blits:
Blit the left half to the right half, blit the right half
to the left half, mirror image each half recursively.
This also works for up/down, "block move" or a slice, and
rotation by i*90 degrees.    -- Darren