Re: Coalesced updates = pain
Re: Coalesced updates = pain
- Subject: Re: Coalesced updates = pain
- From: Guy English <email@hidden>
- Date: Sat, 23 Jul 2005 03:16:43 -0400
Awww, geez ... should have read the whole thread. I missed the bit
about your rendering code needing the original rects. Sorry for the
pile on.
On 7/23/05, Guy English <email@hidden> wrote:
> Hey John,
>
> vblank, man, it can be a stinker. :) It's on by default in 10.4 so
> each time you call displayRect it's going to wait for the vertical
> retrace. On an LCD I think it's at 60Hz but I haven't timed it. If you
> went back to the setNeedsDisplayInRect: method it'd all be fine
> because it'd automatically do what you're now doing explicitly. Check
> out needsDisplayInRect - it will check for intersections between the
> rect you want to draw and the rects marked as dirty. Actually, it will
> probably be faster than what you're doing now because right now you're
> just manually invalidating a largest region that you need to. Hope
> that helps.
>
> Take care,
> Guy
>
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