[PD-dev] Rewrite wrap~ to allow an extra block

Ed Kelly morph_2016 at yahoo.co.uk
Thu Sep 29 14:17:13 CEST 2016

Thanks Pierre. Trying it now.
This thing doesn't immediately crash or segfault, so I'm onto a winner eventually :)
I understand my brain is slightly more dead than it was. But we can move forward now.Cheers,Ed
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    On Thursday, 29 September 2016, 12:27, Pierre Guillot <guillotpierre6 at gmail.com> wrote:

 Hi Ed,The prototype of your perform method is wrong. You should have something like:static t_int *wrap_overshoot_tilde_perform( t_int *w){    t_wrap_overshoot_tilde *x = (t_wrap_overshoot_tilde *)(w[1]);    t_sample *in  = (t_sample *)(w[2]);    t_sample *out = (t_sample *)(w[3]);    t_int n       = (t_int)(w[4]);    ...    return w+5;}
and the dsp_add method should be called like this:dsp_add((t_perfroutine)wrap_ overshoot_tilde_perform, 4, (t_int)x, (t_int)sp[0]->s_vec, (t_int)sp[1]->s_vec, (t_int)sp[0]->s_n);
About what you want to do, I would like to help but I'm not sure to understand. I understand that you want that your object performs at the end of the DSP chain (end of the audio block) on a signal that should be computed previously in the DSP chain but as we all know only the Matthew McConaughey from Interstellar has this power :).
2016-09-29 12:00 GMT+02:00 Ed Kelly via Pd-dev <pd-dev at lists.iem.at>:

Hey list,I'm tearing my hair out trying to re-write the wrap~ object, so that it doesn't wrap instantly but waits until the end of the audio block to wrap~ the signal. I hope you understand.
This is so that control-rate messages sent to another object further down the signal-path have a chance to catch up, and eliminate clicks due to the end-of-block delay for control messages.
The idea is that wrap_overshoot~ will not wrap until the end of the block. This is a really tech-y problem, but I've tried variables and clocks. Everything seems to segfault on me.
?????Lots of love,Ed
PS if this works you'll all be able to use it during and after pdcon16~

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