Re: [Denemo-devel] A Plan for JACK in denemo

[Nils Hammerfest]

This is a good idea. Keep it simple and stupid.

Nils



On Mon, 14 Dec 2009 11:14:22 +0000
Richard Shann <address@hidden> wrote:

> I have fixed a serious bug in the device_manager.c that was corrupting
> the view widget (it was being passed as if it was the treestore). This
> may be enough to prevent the crashes. But I think a lot of complication
> should be stripped out. I will not have time to work on it this week
> but 
> what I suggest is that we keep it simple at first:
> 
> No starting/restarting jackd - if it is not running set up a flag to say
> so and do not do any jack things - just let the user set up the
> device/client list in prefs.
> 
> If jackd is running
> The Denemo prefs are read to find the user's client and port names and
> numbers. These are used to populate jack at the point **** below.
> 
> 
> int
> init_jack(void){
>   int err = 0;
>   create_jack_midi_client();******** populate all clients from
> Denemo.prefs here
> 
>   input_port = jack_port_register(midi_device[0].jack_client,
> INPUT_PORT_NAME, JACK_DEFAULT_MIDI_TYPE,
>                         JackPortIsInput, 0);
>  ...
> 
> The user is responsible for the Denemo.prefs making sense - i.e. they
> have to assign client and port numbers that do not overlap. The user
> gets told if they have used the same client/port number twice.
> 
> If there are no device/client prefs, nothing is registered, the only
> thing the user can do is go to the prefdialog and define some.
> 
> In the prefdialog, all that is done is write Denemo.prefs. So the user
> has to quit and re-start denemo to get jack working with the new prefs.
> (Very crude, but simple, we can improve it later)
> 
> 
> At this level of simplicity it should be possible to track down any
> bugs. If you have time to work on this Jeremiah, please do, as I shall
> be very busy all week now.
> 
> Richard
> 
> 
> 
> 
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> 


-- 
Nils Gey
http://www.nilsgey.de