[PD] efficient approximation of trig functions for hi pass formula (was: could vanilla borrow iemlib's hi pass filter recipe?)
jancsika at yahoo.com
Thu Oct 20 02:20:45 CEST 2016
> I think a core commenting sprint would be *very* helpful, specially to those of us
> (me) who would like help in understanding the black magic inside.
Does anyone know a tool that will display the line number of a vim session in
a large rectangle next to the terminal window?
The one could do a screencast and just scroll down through the source explaining
what each block of code does.
Then people could just search youtube for the relevant c source file, and queue up
the video and search until the relevant line number appears in the big rectangle.
On Oct 19, 2016, at 12:57 PM, pd-list-request at lists.iem.at wrote:
That is an important question. Pd code is full of clever tricks and
bit hacks for dsp efficiency. What is the origin of q8_rsqrt(), why
and how does it work? What about PD_BIGORSMALL() in m_pd.h? And the
mysterious UNITBIT32 number in d_osc.c? Ideally such code should be
commented not only to denote its function (if necessary) but also to
reference the origin so you may be able to find info.
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