On Tue, Jan 5, 2016 at 2:38 PM, Jeff Gilbert <jgilb...@mozilla.com> wrote:

> > Essentially, we would extend the same API but allow the WDTStream
> >> interface to apply to more HTML elements, not just HTMLCanvasElement,
> >> HTMLImageElement, or HTMLVideoElement.
> >>
> >> We would also need to implement WEBGL_security_sensitive_resources to
> >> enforce the security model:
> >>
> >>
> >>
> https://www.khronos.org/registry/webgl/extensions/WEBGL_security_sensitive_resources/
> >
> >
> > I wish I'd known about this proposal earlier! This looks pretty good,
> > though I'd always thought this would be too complicated to spec and
> > implement to be practical. Glad to be wrong! Although I think we should
> get
> > as much feedback as possible on this in case of hidden gotchas.
>
> Historically in our investigations of this, it seemed very very hard
> to guarantee a lack of timing vectors, even just for arithmetic.
> (Particularly since we're handing the sources to the driver, which
> will try to optimize away as much as it can)
>

Feedback from GPU vendors would be key here, I think. I'd like to hear that
before declaring it dead. If they already did --- RIP :-).

Rob
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