Subject: Re: [linux-audio-dev] Plugin APIs (again)
From: Tim Goetze (tim_AT_quitte.de)
Date: Tue Dec 10 2002 - 20:16:52 EET
Steve Harris wrote:
>> nope, i meant dynamic updates on a realtime (lock-free)
>> code path; it's an interesting problem with, afaict, no
>> obviously elegant solutions.
>
>Argh! I was thinking of dumping the code and rebuilding (hopefully keeping
>the state). Doing it that way would be interesting, but much harder. Youd
>have to either use a lot of function calls or do some hard code relocation
>stuff I think.
yep, i was thinking about direct code generation (relocation
if you will) assuming it'd give the best execution speed. rt
modification of such constructs can easily set your thoughts
spinning for a few hours.
>No, I imagine it will be noticably slower, however I think CPU's are
>getting to the kind of power where its feasable to use it for real.
i have yet to notice a power increase in the local cpu. ;)
>The dynamic compiliation will win you some speed back.
>
>I dont think the implementation is really that hard, the UI would be the
>most complex part, as always. Its kindof a pipedream anyway, as none of us
>has enough free time to tackle it at the moment.
sigh, yes. i've been thinking about a simplistic dsp-only
scripting language for similar purposes lately, but concluded
that for the time being gcc producing dynamically reloaded
.so's would be the way to go (unfortunately saol produces
executables, hint ;).
tim
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