[LV2] [LAD] LV2: Communicate from the DSP to the UI

David Robillard d at drobilla.net
Sat Nov 9 11:08:59 PST 2013

On Wed, 2013-11-06 at 15:21 +0000, Aurélien Leblond wrote:
> > Using instance-access for visualization is 100% OK (assuming graceful
> > degradation if the plugin does other things).  Using it for control is
> > grounds for being taken out back and shot.
> Well, there is one simple reason why I cannot use instance-access -
> Ingen doesn't and won't support it :)

> My requirements for this scope are:
> - must be compatible with Ingen. I want this scope to be used with
> other plugins from the avw.lv2 suite
> - I don't want to rely on outside jack apps I could plug Ingen into.

> As far as synchronization goes, I'm not that demanding... My scope
> needs to be able to compare two inputs, so as long as they are
> received in the same "event" I should be ok. The other case would be
> to compare the output from a LFO with what I actually hear, but LFO
> are so slow that even a 40ms delay shouldn't be much of an issue.

Such a scope is certainly useful.  Hardcore graphics stuff like Robin is
into is nice for some things, but not really necessary for most.


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