[mythtv] [mythtv-commits] Ticket #7525: Optimize Pulse handling in MythUI

[Gavin Hurlbut]

On Thu, Aug 26, 2010 at 7:17 PM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> For the actual animations stuff (the screen refreshes, but not necessarily
> the alphapulse), IIRC, 70Hz was chosen because of the 60Hz beat of the
> seconds display in the clock--we needed some value >60Hz to ensure we didn't
> skip any seconds.  Stuart M. could probably give a lot more detail when he
> returns.
>

Hmmm, doesn't compute.  The seconds display changes once a second.  You
wouldn't lose any seconds unless you were refreshing at < 1Hz.  But I'm sure
there's something behind this :)


> Also, remember that this pulsing is in the UI, not the OSD, so video frame
> rates/refresh may not be that important.  I'd expect we have a lot of people
> running at 1080p60 or whatever because that's what their TV supports, and
> maybe they drop to video-matched modes for video playback.


Yeah.  I don't want the effect gone, just not hogging the CPU :)

BTW, the updated patch knocked it down from 48% to 45% (on a 2.8GHz
Pentium-D)
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