On Mon, Apr 26, 2004 at 07:24:20AM +0100, Mark Benson wrote: > The limiting factor as far as Macs go is that you need more VRAM space > to page the screens to if you run at higher refresh rates. Think about > the refresh rate as 'screens per second' and in a given time frame you > have to store more pixel information in the VRAM. Thus larger pages (as > Thousands of colours is) take up more space per second. Therefore at > one instance it can store less thousands pages than 256 colour ones.
WTF? The performance and the video and memory made some sense, but this does not. Video chips (at least on older systems) typically have one or two pages. The only reason for the second page is to hide redrawing the screen from the user, in order to avoid some nasty artifacts. The only time you are concerned with video timing, as a programmer, is to switch pages at the right time (else you get flicker). If you have a greater number of video pages, you are buffering data for some reason, and you don't create big buffers on low memory systems because it will hurt performance. Byron. -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
