Reactogon/Shared.hs

   1 module Shared ( inRef
   2               , outRef
   3               , clientRef
   4               ) where
   5
   6 import ClientState
   7 import MIDI
   8
   9 import Control.Concurrent.MVar
  10 import Data.Map ( Map
  11                 , empty
  12                 )
  13 import FRP.Yampa
  14 import Sound.JACK ( NFrames
  15                   )
  16
  17 -- | MVar containing all the events given by the input port.
  18 inRef :: IO (MVar EventQueue)
  19 inRef = newMVar empty
  20
  21 -- | MVar containing all the events to be given to the output port.
  22 outRef :: IO (MVar EventQueue)
  23 outRef = newMVar empty
  24
  25 -- | MVar containing the state of the machine (JACK client and ports).
  26 clientRef :: Int -> NFrames -> NFrames -> IO (MVar ClientState)
  27 clientRef rate outSize inSize = newMVar $ ClientState { rate = rate
  28                                                       , outSize = outSize
  29                                                       , inSize = inSize
  30                                                       }