[PD-dev] Modified [partconv~] and issues with fftw3

[Lucas Cordiviola]

This is the Makefile from my Deken pkg (with sources) for Windows-amd64:

bsaylor[v0.1.4](Windows-amd64-32)(Sources).dek
     Uploaded by lucarda @ 2018-09-29 11:33:54



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
class.sources = aenv~.c partconv~.c pvoc~.c susloop~.c svf~.c zhzxh~.c


ldlibs = -lfftw3 -lfftw3f -lpthread




include pd-lib-builder/Makefile.pdlibbuilder

#
#
#
# sources from https://packages.debian.org/source/stable/pd-bsaylor
#
# Source Package: pd-bsaylor (0.1-4)
#
#
# patched from pd-bsaylor_0.1-4.debian.tar.xz
#
# MinGW needs this package:
# mingw64/mingw-w64-x86_64-fftw
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



You have to install (from the msys2 shell) the fftw library (check which 
arch to install) with:

     pacman -Ss fftw

then to install do (to install the amd64 version):

     pacman -S mingw64/mingw-w64-x86_64-fftw

Then you can build directly from the MinGW64 shell (or MinGW32 shell if 
you build for i386) with:

     make

Or if you are using your makefile add the linker flags "-lfftw3 -lfftw3f 
-lpthread". (i can't remember how to do this with code::blocks but I'm 
sure you can).

PS: then you need to copy files "libfftw3-3.dll libfftw3f-3.dll" from 
somewhere in your compiler folder to the same folder as your externals.


Hope it helps.

:)

Mensaje telepatico asistido por maquinas.

On 4/7/2021 3:54 AM, Gloria Dal Santo wrote:
>
> Hi everyone!
>
> I’m trying to create a sort of 3d audio reproduction system by 
> convolving the dry sound with the BRIRs of a room.
>
> The patch I’m working on will be connected to a head-tracker so that I 
> can change BRIR depending on the position of the listener.
>
> To achieve this I tried to use bsaylor’s  [partconv~] but 
> unfortunately, when I set a new impulse response, I have a short dead 
> time. To fix this I tried to cross fade the output of two [partconv~] 
> but this messes up the binaural cues, it is not the right approach.
>
> My idea is that of modifying the .c code of the external to get what I 
> need. Usually, I work on Code::Blocks, MinGW compiler, Win10. I’ve 
> already built some super simple externals, but this time I’m facing a 
> problem that I’ve never encountered before: to perform the Fourier 
> transform, partconv~.c uses the fftw3 library, and  I couldn’t find a 
> way to add it to the Linker Options.
>
> From what I’ve understood online, fftw3 is a dynamic library, 
> therefore there’s no .lib file. On Code::Blocks Settings -> Compiler 
> -> Linker Settings -> Link libraries I cannot load a .dll dynamic 
> library. I tried different solutions that I found online but none of 
> those worked. I get “undefined reference to” errors when calling all 
> the fftw3 functions.
>
> Can any of you help me somehow? If you were able to write an external 
> that referred to the fftw3 library, how was your setup?
>
> Moreover, I saw that in the bsaylor’s  library folder there are also 
> files of the type .dsp, .dsw, .o. Once I modify the .c code, should I 
> update those as well?
>
> I hope that I stated my issue clearly, if now please ask me for 
> further details.
>
> Thank you in advance for your time.
>
> Gloria
>
>
> _______________________________________________
> Pd-dev mailing list
> Pd-dev at lists.iem.at
> https://lists.puredata.info/listinfo/pd-dev