On 12/11/05, Kelvin Lawson <[EMAIL PROTECTED]> wrote:
> Hi Jay,
>
> > I note that it doesn't handle full-screen well (1280x1024), speedwise;
> > is there something I should be doing there?
>
> The CPU horsepower is heavily affected by the display update rate, I
> think v0.4 went out with a default 60 frames per second. I've lowered
> this to 10fps in CVS. To lower it in your installation, search for "fps"
> in pycdg.py.

The only problem with this is that the FPS is actually somewhat
important; 15 fps is a bare minimum (from the testing on different
tracks I've tried it with) for usable singing (it seems "jumpy" even
at 15 FPS, though it's servicable). 30 FPS is definitely better, and
60 FPS is what the hardware players I've worked with produce.

> Will also committed a mod in CVS to use hardware acceleration if
> available in full-screen mode - sounds like it would be worth giving
> that a go as well.

It's enabled by default in CVS but it doesn't actually seem to help at
all (that I can detect). It may just not be working or I may have set
something up incorrectly. Having more pairs of eyes looking that over
would be helpful :)

> What speed CPU are you using by the way?

The notebook I now use for shows is an AMD Sempron 1.6GHz.

> > My production environment will be a little tiny window on my KJ
> > display, and probably 640x480x8 on the playback monitor (are we doing
> > dual-monitor yet?  Or will I have to do an X-splice somehow?); will
> > that be fast enough to keep up?
>
> I made a development version that allows you to send to another X
> display, but not dual-display yet. Dual-display is going to need some
> architectural changes... something like a single audio playback and
> syncing module that sends the display data to other display processes.
> There's no built-in support in pygame for selecting X displays so it
> would mean running a new python process with DISPLAY= in front.

Don't forget about xinerama-style support -- one desktop stretched
across two physical display devices. This is what I use now (the
notebook display is used for my stuff during a show, then the
VGA-to-NTSC adapter showing the other half of the desktop is used for
the "who's up" cards, video clips, etc.

pycdg.py plays along just fine by specifying the correct geometry and
position, too. I can routinely squeeze 50 FPS out of it at 800x600. If
I try for 60 FPS, it loses sync with the audio and isn't usable.


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