World displayWorldSafely

​- Bert -​

On 16 January 2018 at 11:01, Marcel Taeumel <marcel.taeumel at hpi.de> wrote:

> Hmm... maybe "Project current world displayWorldSafely"? Or for a single
> morph "Display getCanvas fullDraw: self"? Well, the latter does ignore
> Z-Order and occlusion and stuff.
>
> Best,
> Marcel
>
> Am 15.01.2018 22:37:52 schrieb tim Rowledge <tim at rowledge.org>:
>
> > On 15-01-2018, at 1:17 PM, Eliot Miranda wrote:
> >
> > Hi Tim,
> >
> > On Mon, Jan 15, 2018 at 10:41 AM, tim Rowledge wrote:
> > For something that cpu intensive how about sticking a deliberate yield
> in the cycle somewhere so the rest of the system can do some work? That
> would help provide some chance of catching an interrupt key, something I
> faintly recall being a bit of a pain under the sim.
> >
> > Perhaps a yield in the sim code for the process check?
> >
> > The right place is in ioForceDisplayUpdate, which in the simulator is a
> no-op, but is called in all the right places (after deferDisplayUpdates is
> reset for example).
>
> True, but I was wondering about having a yield to allow the wider system a
> play with the cpu. That may or may not be desirable, depending on what’s
> happening. Actually I guess that might be better done with a high-priority
> timer to interrupt and faff around.
>
> >
> >
> > The classic simple approach is #doOneCycle, assuming morphic is in use.
> If you want to get all low-level and brutal you could use
> DisplayScreen>>#forceToScreen I guess.
> >
> > So what I don't see is why doOneCycle is the right call. That advances
> the animation clock,
>
> It’s just the more-or-less habitual response and it let’s other morphs
> update; again, maybe desirable if you were to have a bunch of monitoring
> morphs that displayed cycles, interrupts, gc data etc.
>
> > whereas what I want to do is simply ensure that a form submorph in a
> window appears on screen. I'm happy to use doOneCycle if that's the right
> thing but reading the code it seems to have far more effects than I want.
>
> Sounds like whacking DisplayScreen>>#forceToScreen would be where you want
> to start for now
>
> tim
> --
> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
> Strange OpCodes: PNG: Pass Noxious Gas
>
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