[PD] API for manipulating a patch in real time

[Enrique Erne]

i'd love to see pd going this direction and use it with friends.

processing is a pretty good candidate imo. on osx i could get it to 
start and open a patch unfortunately not in -nogui mode

i do not understand enough what's possible, but it would be crazy if one 
could use Pd with titanium, which is the opensource cousin of adobe air.
http://titaniumapp.com/

eni

(just keeping this topic alive :) )


Miller Puckette wrote:
> I can imagine simply writing an example program to do this (putting some
> boilerplate first and then a rewritable main at the end).  It would
> look more like this:
> 
> /* don't touch me */
> ....
> /* but replace the following with your code */
> 
> main()
> {
>    pd_startthread("arg1 arg2...");
>    	/* do anything you want */
>    pd_send("foo bang;");
> 	/* etc */
>    pd_endthread();
> }
> 
> ... the idea would be that pd itself would live in a subthread and you'd
> be able to send messages to it and even somehow get return callbacks.
> This wouldn't be like pd~ at all, since in this scenario Pd would open 
> audio and MIDI as needed and schedule itself (with pd~ the subprocess
> slaves itself synchronously to the parent).  Another restriction would
> be that you could only have one Pd thread (it isn't thread-safe!).  On
> the other hand, this would work fine in Windows, which pd~ doesn't (since
> windows appears not to offer pipes unless you add a library with funny
> licensing restrictions.)
> 
> Would that be a useful thing to have?
> 
> cheers
> Miller
> 
> On Wed, Dec 10, 2008 at 11:28:22AM +0000, Andy Farnell wrote:
>>
>> Yes! Even if it's already 'doable' having a clearly
>> abstracted libPd with documented API is clearly the next
>> step in Pure Data development. This should be an overriding
>> consideration in all current dev directions.
>>
>>
>> On Wed, 10 Dec 2008 20:07:04 +0900
>> Chris McCormick <chris at mccormick.cx> wrote:
>>
>>> On Wed, Dec 10, 2008 at 09:05:16AM +0100, IOhannes m zmoelnig wrote:
>>>> Zach Dwiel wrote:
>>>>> Hello
>>>> first of all, there is no official API.
>>> It would be so nice if there were an easy way to invoke Pd as a library
>>> from within other code. I know it's possible to do this (Spore, pd~,
>>> RjDj, Pd browser plugin), it's just that it requires writing a bunch of
>>> non-trivial support code that must be re-written every time. It
>>> shouldn't have to. Pd -nogui could and should be as easily invokeable as
>>> any other library.
>>>
>>> For example, I just wish it was possible to go:
>>>
>>> #include <pd.h>
>>>
>>> *PDInstance pd = make_pd_instance();
>>> pd->init(/* ..args.. */);
>>>
>>> while (1)
>>> {
>>> 	/* Do stuff here */
>>> 	pd->schedloop();
>>> 	/* Do other stuff here */
>>> 	pd->sendMessage(";my-receiver bang;");
>>> }
>>>
>>> Ok maybe not quite as easy as that, but I reckon you'd see Pd used as
>>> the audio engine for loads of other apps and games if this was simple.
>>> There has already been interest from e.g. the Blender project and the
>>> several other apps that already embed Pd.
>>>
>>> If this is already easy and I have just missed something obvious, please
>>> let me know. (Sorry for not contributing code.)
>>>
>>> Best,
>>>
>>> Chris.
>>>
>>> -------------------
>>> http://mccormick.cx
>>>
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>>
>> -- 
>> Use the source
>>
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