From:	Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: What is faster as memcpy???
Organization:	Pin Eight Software http://pineight.8m.com/
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NNTP-Posting-Date:	Wed, 13 Sep 2000 20:41:02 GMT
Distribution:	world
Date:	Wed, 13 Sep 2000 20:41:02 GMT
To:	djgpp AT delorie DOT com
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On Wed, 13 Sep 2000 18:23:30 GMT, "Riox92" <t-bos AT home DOT nl> wrote:

>Its for a VESA2.0 24bit LFB Switch routine.
>
>Now i use memcpy. on a screen of 640*480*24bit screen.
>But on little objects dots the switch looks to slow.. Please can someone
>help me out...

You're moving 900 KB of data per frame.  Without hardware
acceleration, this will be slow.

>Its so iritating to work with it.. even a simple starfield is looking
>messy.. except for 1 pixel speeds

How about only memcpy()ing the parts of the screen that have changed?
Search Google for [dirty rectangles  ]

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