[PD-dev] snake_in~ tutorial?

[Alexandre Torres Porres]

sorry I was away from home and on the phone. Source is on my repo and the
changelog (and my release note) mentions some objects that deal with it
https://github.com/porres/pd-else/releases/tag/v1.0-rc9



Em dom., 10 de set. de 2023 às 15:47, Alexandros Drymonitis <
adrcki at gmail.com> escreveu:

> I've installed else from deken, but I can't find the source files, plus I
> don't know which objects are mc aware, there doesn't seem to be such a
> prefix. What about the perform routine of [snake_in~], where is this
> located?
>

it class this function
https://github.com/pure-data/pure-data/blob/c0a7c16c63e86ccc8ce05c8273ccd8aec7ae044c/src/d_ugen.c#L1396


> On 9/10/23 21:41, Alexandre Torres Porres wrote:
>
> Check many of my mc aware objects in else. Snake uses a perform routine,
> but a very simple one and you can also look for that copy function in the
> code. There is no real difference and you just have to split the vector in
> different chunks of block sizes to get different channels. Other vanilla
> objects that are mc aware also do this
>
>
>
> On Sun, 10 Sep 2023 at 15:17 Alexandros Drymonitis <adrcki at gmail.com>
> wrote:
>
>> I want to experiment with the new Pd feature of the
>> [snake_in~]/[snake_out~] objects, specifically with [snake_in~]. In Pd's
>> source files (in d_misc.c) I read the following in [snake_in~]'s dsp
>> routine:
>>
>> ```
>> static void snake_in_tilde_dsp(t_snake_in *x, t_signal **sp)
>> {
>>      int i;
>>          /* create an n-channel output signal. sp has n+1 elements. */
>>      signal_setmultiout(&sp[x->x_nchans], x->x_nchans);
>>          /* add n copy operations to the DSP chain, one from each input */
>>      for (i = 0; i < x->x_nchans; i++)
>>           dsp_add_copy(sp[i]->s_vec,
>>              sp[x->x_nchans]->s_vec + i * sp[0]->s_length,
>> sp[0]->s_length);
>> }
>>
>> ```
>>
>> There is no perform routine, so my question is, how do I deal with snake
>> signals in a perform routine? How do I unpack them? Where is this
>> happening in Pd's source code, so I can have a look?
>>
>>
>>
>>
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