Safe Haskell	Safe-Inferred
Language	Haskell2010

Sound.MIDI.Message.Channel

Description

Channel messages

Synopsis

Documentation

data T Source

Constructors

Cons
Fields messageChannel :: Channel messageBody :: Body

Instances

Eq T
Ord T
Show T
Arbitrary T
C T
C T
C T

data Body Source

Constructors

Voice T
Mode T

Instances

Eq Body
Ord Body
Show Body

get :: C parser => Int -> Channel -> Int -> Fragile parser T Source

Parse a MIDI Channel message. Note that since getting the first byte is a little complex (there are issues with running status), the code, channel and first data byte must be determined by the caller.

getWithStatus :: C parser => Int -> Fragile (T parser) T Source

Parse an event. Note that in the case of a regular MIDI Event, the tag is the status, and we read the first byte of data before we call get. In the case of a MIDIEvent with running status, we find out the status from the parser (it's been nice enough to keep track of it for us), and the tag that we've already gotten is the first byte of data.

put :: C writer => T -> writer Source

putWithStatus :: C writer => T -> T writer Source

data Channel Source

This definition should be in Message.Channel, but this results in a cyclic import.

Instances

Bounded Channel
Enum Channel
Eq Channel
Ord Channel
Show Channel
Ix Channel

fromChannel :: Channel -> Int Source

toChannel :: Int -> Channel Source

data Pitch Source

Instances

Bounded Pitch
Enum Pitch
Eq Pitch
Ord Pitch
Show Pitch
Ix Pitch
Arbitrary Pitch
Random Pitch

fromPitch :: Pitch -> Int Source

toPitch :: Int -> Pitch Source

data Velocity Source

Instances

Bounded Velocity	ToDo: We have defined minBound = Velocity 0, but strictly spoken the minimum Velocity is 1, since Velocity zero means NoteOff. One can at least think of NoteOff with (Velocity 0), but I have never seen that.
Eq Velocity
Ord Velocity
Show Velocity
Arbitrary Velocity
Random Velocity

fromVelocity :: Velocity -> Int Source

toVelocity :: Int -> Velocity Source

data Program Source

Instances

Bounded Program
Enum Program
Eq Program
Ord Program
Show Program
Ix Program
Arbitrary Program
Random Program

fromProgram :: Program -> Int Source

toProgram :: Int -> Program Source

data Controller Source

We do not define Controller as enumeration with many constructors, because some controllers have multiple names and some are undefined. It is also more efficient this way. Thus you cannot use case for processing controller types, but you can use lookup instead.

maybe (putStrLn "unsupported controller") putStrLn $
lookup ctrl $
   (portamento, "portamento") :
   (modulation, "modulation") :
   []

Instances

Bounded Controller
Enum Controller
Eq Controller
Ord Controller
Show Controller
Ix Controller
Arbitrary Controller
Random Controller

fromController :: Controller -> Int Source

toController :: Int -> Controller Source

decodeStatus :: Int -> (Int, Channel) Source

for internal use