garrays in dsp (was Re: [PD-dev] re: branch convergence)

[Miller Puckette]

Hi all,

Well, it might be simpler to store a pointer to the t_array instead of
one to the actual vector (a_vec) in the DSP routines.  That way, resizing
or swapping vectors could happen without re-sorting DSP, but you'd still
have to re-sort ig a "t_garray" got deleted or renamed.  The cost would
be one additional pointer chase in each of the tabread~, tabwrite~, etc.,
operations.

I've almost finished my work of redesigning the garray/array business
(to unify it with arrays in "structs") and hope to check it in today...

cheers
Miller

On Fri, Nov 26, 2004 at 02:46:11PM +0100, Tim Blechmann wrote:
> hi miller, hi devs
> 
> > Hmm, and on that subject, I'm making changes in garray for 0.39 that
> > might point to a different approach to using arrays in DSP, not sure
> > yet.  I'm trying to unify "regular" (named) arrays with the ones that
> > can appear in"scalars"... which is in turn necessary for me to make
> > any more progress on the "data" aspect of Pd...
> working on the threaded soundfiler again, i'm investigating
> possibilities to update pointers to g_arrays that are ->usedindsp ...
> 
> since the current implementation using canvas_update_dsp() possibly
> recompiles the dsp chain (is this correct?), i thought of a way to store
> the pointers to the pointers to the array in garray_getfloatarray() in
> struct t_array ... after the position of the array in memory changed,
> it's possible to update all these pointers ...
> 
> miller ... since you are also planing to work on arrays in dsp, i'm
> curious if you already thought of a different solution for such a
> problem ...
> 
> cheers ... tim
> 
> -- 
> mailto:TimBlechmann at gmx.de    ICQ: 96771783
> http://www.mokabar.tk
> 
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> would say "I want to see the manager."
> 				      William S. Burroughs
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