[PD-dev] preparing phasor~&Co. for double precision Pd

IOhannes m zmölnig zmoelnig at iem.at
Sat Jul 30 16:04:30 CEST 2011


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On 07/30/2011 01:04 PM, katja wrote:

> Since I am not familiar with this part of Pd code, my proceedings are slow
> and I've not found the time to scan s_audio_jack.c, s_audio_alsa.c etcetera
> for similar issues. Yet, on the dsp side of things, I feel we're close to a
> properly functioning double precision Pd.

i had correct output using double precision samples using (iirc) ALSA
and jack, back then when i started the patch set (which eventually made
it into Pd-0.42), so that shouldn't be a problem.

looking at the code, the relevant changes are definitely there for jack;
and alsa will most likely work if it's not trying to do mmap() - if the
device does support mmap  we might have problems.

> distributed as stable release, whenever that will happen. And this
> protection must preferably be backwards compatible, in such a way that old
> Pd installations from the 'single only era' can not accidentally load new
> double precision classes.

totally true.


fmgsadr
IOhannes
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