Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cwjcc!tut.cis.ohio-state.edu!ucbvax!TMASL.EXXON.COM!FERGUSON
From: FERGUSON@TMASL.EXXON.COM
Newsgroups: comp.sys.apollo
Subject: GPR Double Buffering
Message-ID: <8905111834.AA15992@umix.cc.umich.edu>
Date: 11 May 89 16:40:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 13


The GPR Manual Says that you must have a DN590 to do double buffering.
How come GMR3d can do double buffering on an 8-plane 3000, and GPR
can't? On an 8-plane 4000, I would like to initialize GPR in borrow
or direct mode, with a 4-plane bitmap. I would then like to do a
gpr_$allocate_buffer, to create a second buffer just like the first
one.

Does GMR3D use GSR for double buffering, and GPR doesn't? This isn't
a real secret or anything is it (Ollie?) Thanks.

Scott Ferguson
ferguson@erevax.bitnet