[CM] Re: Common Music and Csound 5
Mon, 10 Oct 2005 13:50:47 -0500
On Oct 10, 2005, at 12:43 PM, Michael Gogins wrote:
> I will undertake a Lisp or Scheme binding for Csound 5 so that the
> Csound API can be called natively from Common Music.
> Before I do this, I would like to know which version of Scheme or Lisp
> I should target. I will be doing the development work on Windows and
> Linux. Rick Taube's book comes with CLisp for Windows and this also
> can be used on OS X and Linux, so I would guess this is the best
> target. CLisp runs Common Music just fine on my PC.
> I do not have time to maintain multiple bindings, so I need to know
> the best compromise.
Hi, In my opinion the best compromise would be to write your code using
CFFI for Common Lisp -- that way your code should run in every Lisp
that CFFI supports, and it currently supports most CLs on all the major
platforms. You can read about CFFI here:
Note that currently CM does not use CFFI yet but I will definately be
moving to it (both CM and Lambda-GTK) in the fairly near future At any
rate that would not have any bearing on your work, ehich if I
understandd it, could be used by any common lisp (or scheme) program.
For Scheme there is no simple solution -- my understanding is that the
next release of Gauche Scheme (0.8.6) will include an "easy" FFI
If you do a scheme binding I would perfer Gauche over Guile, mainly
because we have CM's realtime scheduler working in Gauche (sort of...),
but also because I have had too many problems trying to build Guile on
OS X. Hoever CM 2.7.0 does run in Guile, Gauche and STklos Schemes.
> As part of this work, I will be moving the C++ form of the Csound API
> from the CsoundVST project into the Csound API library proper, and
> also moving the Python wrappers.
An FFI to C++ will entail additional headache, there is a project
called Verragano that does this, I belileve that it uses CFFI to help
> I would like to finish this work before Csound 5 achieves release
Depending on what you want to do, another possibilty would be to
connect Csound and CM using OSC via UDP -- I think that OSC/UDP is
working in CM right now, or if it isnt, it will be very shortly (ie
days not weeks)
Hope this helps!