benbritten.com

Still busy.

Just a quick update for everyone waiting (all 2 of you :-) for BBTouch stuff. I finished up that last job, but rolled right into another one that will keep me busy for at least 2 weeks. so, good for me (I can pay my bills! yay!) but less good for BBTouch development (gotta wait just a bit longer :-( ).

that is all for now!

Cheers!
-ben

I just sent some minor changes to the BBOSC repository (as well as the BBTouch one too.. ) to fix some memory leakage with the BBOSC stuff.. no leaks now.

BBOSC repository:
http://code.google.com/p/bbosc/
BBTouch repository:
http://code.google.com/p/opentouch/

i really need to make a nice link to these repositories on the sidebar or something so i dont have to keep including them in each post :-)

Hello all,

So, I am in the midst of adding TUIO event generation to the BBTouch code base. For anyone who doesnt know, TUIO is a subset of OSC (open sound control) commands, and is sent using the OSC standard.

Sooo... to this effect, i started researching all the various OSC libs out there, and there are a few, and they are all pretty good. However, in the spirit of this project (ie an all-cocoa multi-touch thing), and in an effort to learn more about the OSC protocol, i decided to start over from scratch.

That was a few days ago, and here is a new OSC implementation in not-so-pure cocoa/objc. There is a bunch of POSIX and C stuff in there to deal with the sockets and the bit-level manipulation of the data. but that is all abstracted away into some nice objects.

here is some sample code for making an OSC listener: (aka a server)

BBOSCListener* anOSCListener = [BBOSCListener defaultListenerOnPort:4556];

that's it. the listener will use the default dispatch delegate to handle the messages coming in, and there you go. (note: be sure to retain your listener if you use the 'easy' method above)

and to send messages? like so:

BBOSCSender* anOSCSender =
[BBOSCSender senderWithDestinationHostName:@"localhost" portNumber:4556];

if (![anOSCSender sendOSCPacket:newMessage]) {
NSLog(@"Oh Noes!!");
}

that's it.

generating messages and bundles is also simple:

BBOSCMessage * newMessage =
[BBOSCMessage messageWithBBOSCAddress:
[BBOSCAddress addressWithString:@"/test/1/groovy"]];

[newMessage attachArgument:
[BBOSCArgument argumentWithString:@"Testing!!"]];
[newMessage attachArgument:
[BBOSCArgument argumentWithInt:12]];

and bundles are similar.

Anyhooo.. the code is available here:
http://code.google.com/p/bbosc/

It is all commented nicely so you should be able to re-use it pretty easily.

A few notes: First, it should probably be a framework, but for now it is just a collection of files. Also, I havent gotten around to building a nice message dispatch system. so for now, if you want to use the code to build a server, you will have to implement your own dispatch. I built it originally to be the client code for BBTouch TUIO events, but it seemed silly not to build the listener stuff as well, so i built that in. (sans dispatch). I am going to add the sending stuff to bbtouch, then i will come back and add a nice dispatch module into BBOSC.

after getting some junk spam comments, and noticing that I am behind the curve. I have upgraded my wordpress install.  This will most likely break everything.

So, i guess to 'have a blog' means that you actually need to write some things on it from time to time. sigh.  I  guess I am just really a hermit at heart, and dont want to share anything with you people. But I guess I should put up all the work I have been doing on my multitouch thing.  More to come soon.