On 04/09/2011 23:33, Joe Emenaker wrote: > 308 JSynthLib.1051/JSynthLib/core/MidiUtil.java > > > I'm a little surprised that so few lines have been altered. I'm also > surprised that MidiUtil is the top of the list, but I just looked at my > copy and I now remember that I've made the whole thing its own process > thread which dispatches MIDI messages to the appropriate driver, etc. >
Is this thread separation only for receiving messages, or is it also for sending messages? Both the current TX81Z driver and my planned Proteus 2000 series driver look like they may need some kind of asynchronous sending mechanism so I've been thinking of how best to achieve this. The TX81z seems to have a hardware limitation whereby an error message can appear on its screen talking about its midi message buffer being full. I am assuming this is because there needs to be some kind of rate limit on messages sent to it. The Proteus 2000 seems to have very long single patch dumps - 2k+! The Proteus 2000 provides 2 transfer mechanisms - one where you just send it blind, and another where there is some handshaking. So the Proteus driver could just send the patches in the blind method, which might be ok for 1 patch, but I shudder to think about sending an entire bank of patches that way without flow control! So to do a good job on the driver I think it will need to support handshaking. While I could imagine implementing the TX81z flow control as a generic mechanism that could apply to various drivers (a simple setting each could set), the P2k handshaking protocol maybe doesn't lend itself to a generic implementation. I wonder if there are any other drivers that use some kind of flow control or rate limitation mechanism (beyond freezing the UI for a few ms! ). frankie ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev _______________________________________________ Jsynthlib-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jsynthlib-devel
