From:	eselk AT aol DOT com (Eselk)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: FASTEST DOUBLE BUFFERING?
Lines:	12
NNTP-Posting-Host:	ladder01.news.aol.com
X-Admin:	news AT aol DOT com
Date:	13 Jan 1999 06:03:51 GMT
Organization:	AOL http://www.aol.com
References:	<76jocl$lf0$1 AT ns DOT mtu DOT ru>
Message-ID:	<19990113010351.01578.00009727@ng36.aol.com>
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

>You should consider using page flipping instead of double-buffering. As a
>matter of fact, it's almost the same as double buffering with one except:
>you do your rendering right into videomemory, so no data moving is needed.
>You just change visible area on the screen from one page to another and so
>on - this is obviously faster than double buffering

Depending on your target market.  Many people still have slower VIDEO RAM then
CPU RAM, and in most VGA modes BANKS will slow you down and make programing
virtual pages even slower.

I like to use FPUCOPY on pentium machines for moving the double buffer.  Pretty
fast.

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