On Mon, 29 Feb 2016 07:27:45 -0800 (PST)
Len Ovens <len(a)ovenwerks.net> wrote:
  On Mon, 29 Feb 2016, Sebastian Gesemann wrote:
  I've started writing a software synthesizer
in C++ (using SDL2 for
 now) for kicks and giggles and ran into the problem of having the
 event loop thread that listens for keyboard events communicate with
 the audio callback.
 Are there any recommendations for how to pass real-time events (note
 on, note off, etc) to such an audio callback? I figured, this is
 already a solved problem and that I could benefit from your
 experiences. Maybe you know of some nice open-source C++ queue
 implementation that is suitable in such a situation.   
 I have used jackd ringbuffer for that.
 If you don't want to link against jack you could probably pull the code
 out to use in your application. the ring buffer is a polled setup, so
 every time you do some audio processing you need to check the ring buffer
 to see if there are any new bytes to process.
 --
 Len Ovens
 
www.ovenwerks.net Another vote for jack ringbuffer. I've found it very reliable
and easy to
implement.
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.