jack (empty) → 0.5
raw patch · 8 files changed
+856/−0 lines, 8 filesdep +basebuild-type:Customsetup-changed
Dependencies added: base
Files
- INSTALL +12/−0
- LICENSE +280/−0
- README +25/−0
- Setup.hs +27/−0
- examples/Amplify.hs +11/−0
- jack.cabal +33/−0
- src/Sound/JACK.hs +337/−0
- src/Sound/JACK/FFI.hs +131/−0
+ INSTALL view
@@ -0,0 +1,12 @@++Installation:++runhaskell Setup.hs configure+runhaskell Setup.hs build+runhaskell Setup.hs install++More information:++runhaskell Setup.hs help++
+ LICENSE view
@@ -0,0 +1,280 @@+ GNU GENERAL PUBLIC LICENSE+ Version 2, June 1991++ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The licenses for most software are designed to take away your+freedom to share and change it. By contrast, the GNU General Public+License is intended to guarantee your freedom to share and change free+software--to make sure the software is free for all its users. This+General Public License applies to most of the Free Software+Foundation's software and to any other program whose authors commit to+using it. (Some other Free Software Foundation software is covered by+the GNU Lesser General Public License instead.) You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. 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+ README view
@@ -0,0 +1,25 @@+Jack - Bindings to the JACK Audio Connection Kit for Haskell++http://open-projects.net/~shahn/index.php?seite=code++It's far from being finished...++++INSTALLATION:++ runhaskell Setup configure+ runhaskell Setup build+ runhaskell Setup haddock # if you want+ sudo runhaskell Setup install+++You need JACK for this to work...+( http://jackaudio.org/ )++You should compile your clients with 'ghc --make -O2 -threaded ...'++The software is licensed under GPL 2, see LICENSE.++Any comments appreciated: shahn@cs.tu-berlin.de+
+ Setup.hs view
@@ -0,0 +1,27 @@++import Distribution.Simple+import Distribution.Simple.Utils+import Directory+import Monad+import System++neededHeaders = ["jack/jack.h", "st.h"]++main = do+ args <- getArgs+ when ((head args) == "configure") (checkHeaders neededHeaders)+ defaultMainWithHooks defaultUserHooks+++checkHeaders ll = do+ mapM checkHeader ll+ return ()++includeDirs = ["/usr/local/include", "/usr/include"]++checkHeader name = do+ putStr ("Searching for " ++ name ++ "...")+ bools <- mapM (\ p -> doesFileExist (p ++ "/" ++ name)) includeDirs+ when (not $ or bools) (fail ("ERROR: " ++ name ++ " not found"))+ putStrLn "found"+
+ examples/Amplify.hs view
@@ -0,0 +1,11 @@+{-# options -O2 #-}+module Main where++import Foreign.C.Types (CFloat)+import qualified Sound.JACK as Jack++main :: IO ()+main = Jack.mainStereo foo++foo :: (CFloat, CFloat) -> IO (CFloat, CFloat)+foo (a, b) = return (a, b)
+ jack.cabal view
@@ -0,0 +1,33 @@+Name: jack+Version: 0.5+License: GPL+License-File: LICENSE+Author: Soenke Hahn+Maintainer: Henning Thielemann <haskell@henning-thielemann.de>+Homepage: http://open-projects.net/~shahn/index.php?seite=code+Repository: http://darcs.haskell.org/jack/+Category: Sound+-- base package version needed for unsafeForeignPtrToStorableArray,+-- base-2.1.1 is shipped with GHC-6.6+-- in base-1.0 (GHC-6.4) this function is missing+Build-Type: Custom+Build-Depends: base>=2.1+Synopsis: Bindings for the JACK Audio Connection Kit+Description: Very basic bindings for the JACK Audio Connection Kit+Hs-Source-Dirs: src+Exposed-Modules: Sound.JACK+Other-Modules: Sound.JACK.FFI+Tested-With: GHC==6.6+ghc-options: -Wall -threaded+Extensions: ForeignFunctionInterface+Extra-Libraries: jack+Includes: jack/jack.h+Include-Dirs: /usr/local/include, /usr/include+Extra-Source-Files: README, INSTALL++Executable: amplify+GHC-Options: -Wall -threaded+Extensions: ForeignFunctionInterface+Extra-Libraries: jack+Hs-Source-Dirs: src, .+Main-Is: examples/Amplify.hs
+ src/Sound/JACK.hs view
@@ -0,0 +1,337 @@+{-+ JACK bindings for Haskell+ Copyright (C) 2007 Soenke Hahn++ This program is free software; you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation; either version 2 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License along+ with this program; if not, write to the Free Software Foundation, Inc.,+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.+-}++{-|++The Jack module defines types and functions that allows you to+use the JACK Audio Connection Kit.++-}+module Sound.JACK+ (+ CFloat,+ CUInt,++ Client,+ Input,+ Output,+ newClient,+ newClientSimple,+ newInput,+ newOutput,+ activate,+ clientClose,+ getPorts,+ connect,+ setProcessMono,+ setProcessStereo,++ mainMono,+ mainStereo,+ )+ where++import qualified Sound.JACK.FFI as JackFFI+import Sound.JACK.FFI (flagsToWord, wordToFlags)++import Foreign (newForeignPtr_, malloc, peek, peekArray0)+import Foreign.Ptr (Ptr, FunPtr, nullPtr)+import Foreign.C.String (newCString, peekCString)+import Foreign.C.Types (CUInt, CInt, CChar, CFloat, CULong)+import Control.Concurrent (MVar, putMVar, newEmptyMVar, takeMVar, threadDelay)++import System.Posix.Signals (installHandler, keyboardSignal, Handler(Catch))+import System.Environment (getProgName)+import Control.Monad (when)+import System.Random hiding (split)+import Data.Array.Storable+ (StorableArray, Ix(range, index, inRange), readArray, writeArray,+ unsafeForeignPtrToStorableArray)+++-- | Handles of Jack clients+newtype Client = Client (Ptr ())+-- | Handles of Jack input ports+newtype Input = Input (Ptr ())+-- | Handles of Jack output ports+newtype Output = Output (Ptr ())++-- | Constructs a new Jack client.+newClient :: String -- ^ name of the JACK server+ -> String -- ^ name of the client+ -> IO Client+newClient server name = do+ cserverS <- newCString server+ cclientS <- newCString name+ status <- malloc+ let opt = flagsToWord [JackFFI.ServerName, JackFFI.NoStartServer]+ client <- JackFFI.client_open cclientS opt status cserverS+ checkStatus client status+ return (Client client)++-- | Creates a new JACK client with the "default" server+newClientSimple :: String -- ^ name of the client+ -> IO Client+newClientSimple name = newClient "default" name++checkStatus :: Ptr a -> Ptr CULong -> IO ()+checkStatus c s = do+ errCode <- peek s+ when (c == nullPtr) (failStatus errCode)+ when (errCode /= 0)+ (putStrLn $ "warning: " ++ show (wordToFlags errCode :: [JackFFI.Status]))++failStatus :: CULong -> IO ()+failStatus errCode =+ fail ("jack_client_open returned a nullPointer. Returned errorcodes: "+ ++ show (wordToFlags errCode :: [JackFFI.Status]))++-- | creates a new input port for the given client+newInput :: Client -- ^ Jack client+ -> String -- ^ name of the input port+ -> IO Input+newInput (Client client) portName = do+ cstring <- newCString portName+ audio_type <- newCString "32 bit float mono audio"+-- putStrLn ("register..." ++ show (client, cstring, audio_type, 1, 0))+ ret <- JackFFI.port_register client cstring audio_type 1 0+-- putStrLn "register..."+ return $ Input ret++-- | creates a new output port+newOutput :: Client -- ^ Jack client+ -> String -- ^ name of the output port+ -> IO Output+newOutput (Client client) portName = do+ cstring <- newCString portName+ audio_type <- newCString "32 bit float mono audio"+ ret <- JackFFI.port_register client cstring audio_type 2 0+ return $ Output ret+++-- | activates the given Jack client+activate :: Client -> IO ()+activate client = do+ JackFFI.activate $ getClient client+ return ()++-- | closes the given Jack client without causing any trouble (hopefully)+clientClose :: Client -> [Input] -> [Output] -> IO ()+clientClose client inports outports = do+ mapM (JackFFI.port_unregister (getClient client)) (map getInput inports)+ mapM (JackFFI.port_unregister (getClient client)) (map getOutput outports)+ JackFFI.deactivate (getClient client)+ JackFFI.client_close (getClient client)+ return ()++type Process = CUInt -> Ptr (CChar) -> IO (CInt)+foreign import ccall "wrapper" mkProcess :: Process -> IO (FunPtr Process)+++getClient :: Client -> Ptr ()+getClient (Client x) = x++getInput :: Input -> Ptr ()+getInput (Input x) = x++getOutput :: Output -> Ptr ()+getOutput (Output x) = x++-- | returns the names of all existing ports of the given Jack client+getPorts :: Client -- ^ the Jack client+ -> IO [String] -- ^ the names as a list of strings+getPorts client = do+ empty <- newCString ""+ strArray <- JackFFI.get_ports (getClient client) empty empty 0+ peekArray0 nullPtr strArray >>= mapM peekCString+++connect :: Client -> String -> String -> IO()+connect client outport inport = do+ outCString <- newCString outport+ inCString <- newCString inport+ JackFFI.connect (getClient client) outCString inCString+ return ()+++quit :: MVar () -> Client -> [Input] -> [Output] -> IO ()+quit mvar client ins outs = do+ putStrLn "quitting..."+ clientClose client ins outs+ threadDelay 1000000+ putMVar mvar ()++++mainMono :: (CFloat -> IO CFloat) -> IO ()+mainMono fun = do+ name <- getProgName+ client <- newClientSimple name++ input <- newInput client "input"+ output <- newOutput client "output"+++ setProcessMono client input fun output++ activate client+ putStrLn $ "started " ++ name ++ "..."++ mvar <- newEmptyMVar+ installHandler keyboardSignal (Catch (quit mvar client [input] [output])) Nothing+ takeMVar mvar++setProcessMono ::+ Client -> Input -> (CFloat -> IO CFloat) -> Output -> IO CInt+setProcessMono client input fun output = do+ procPtr <- mkProcess $ wrapMonoFun input fun output+ JackFFI.set_process_callback (getClient client) procPtr nullPtr++wrapMonoFun :: Input -> (CFloat -> IO CFloat) -> Output+ -> (CUInt -> Ptr CChar -> IO CInt) -- what JACK expects+wrapMonoFun input fun output nframes _args = do+ inArr <- getBufferArray (getInput input) nframes+ outArr <- getBufferArray (getOutput output) nframes+ mapM (applyToArraysMono inArr fun outArr) [0..(nframes - 1)]+ return 0 -- ???++applyToArraysMono :: StorableArray CUInt CFloat -> (CFloat -> IO CFloat)+ -> StorableArray CUInt CFloat+ -> CUInt -> IO ()+applyToArraysMono inArr fun outArr i =+ readArray inArr i >>= fun >>= writeArray outArr i++getBufferArray :: Ptr () -> CUInt -> IO (StorableArray CUInt CFloat)+getBufferArray bptr nframes = do+ ptr <- JackFFI.port_get_buffer bptr nframes+ fptr <- newForeignPtr_ ptr+ unsafeForeignPtrToStorableArray fptr (0, (nframes - 1))++-- Stereo+mainStereo :: ((CFloat, CFloat) -> IO (CFloat, CFloat)) -> IO ()+mainStereo fun = do+ name <- getProgName+ client <- newClientSimple name++ inputLeft <- newInput client "inputLeft"+ inputRight <- newInput client "inputRight"+ outputLeft <- newOutput client "outputLeft"+ outputRight <- newOutput client "outputRight"++ seq (map fun (replicate 100 (0, 0))) (return ())++ setProcessStereo client inputLeft inputRight fun outputLeft outputRight++ activate client+ putStrLn $ "started " ++ name ++ "..."++ mvar <- newEmptyMVar+ installHandler+ keyboardSignal+ (Catch (quit mvar client [inputLeft, inputRight] [outputLeft, outputRight]))+ Nothing+ takeMVar mvar+++setProcessStereo ::+ Client -> Input -> Input ->+ ((CFloat, CFloat) -> IO (CFloat, CFloat)) ->+ Output -> Output -> IO CInt+setProcessStereo client inputLeft inputRight fun outputLeft outputRight = do+ procPtr <- mkProcess $ wrapStereoFun inputLeft inputRight fun outputLeft outputRight+ JackFFI.set_process_callback (getClient client) procPtr nullPtr+++wrapStereoFun :: Input -> Input+ -> ((CFloat, CFloat) -> IO (CFloat, CFloat))+ -> Output -> Output+ -> (CUInt -> Ptr CChar -> IO CInt) -- what JACK expects+wrapStereoFun iL iR fun oL oR nframes _args = do+ inLArr <- getBufferArray (getInput iL) nframes+ inRArr <- getBufferArray (getInput iR) nframes+ outLArr <- getBufferArray (getOutput oL) nframes+ outRArr <- getBufferArray (getOutput oR) nframes+ mapM (applyToArraysStereo inLArr inRArr fun outLArr outRArr) [0..(nframes - 1)]+ return 0 -- ???++applyToArraysStereo :: StorableArray CUInt CFloat+ -> StorableArray CUInt CFloat+ -> ((CFloat, CFloat) -> IO (CFloat, CFloat))+ -> StorableArray CUInt CFloat+ -> StorableArray CUInt CFloat+ -> CUInt -> IO ()+applyToArraysStereo iL iR fun oL oR i = do+ l <- readArray iL i+ r <- readArray iR i+ (l', r') <- fun (l, r)+ writeArray oL i l'+ writeArray oR i r'++++-- Useful instances+instance Ix CUInt where+ range (a, b) = [a..b]+ index (start, _end) i = fromEnum (i - start)+ inRange (start, end) i = start <= i && i <= end+++instance Random CFloat where+ random g = randomIvalDouble (0::Double,1) realToFrac g+ randomR (a,b) g = randomIvalDouble (realToFrac a, realToFrac b) realToFrac g++randomIvalInteger :: (RandomGen g, Num a) => (Integer, Integer) -> g -> (a, g)+randomIvalInteger (l,h) rng =+ if l > h+ then randomIvalInteger (h,l) rng+ else case (f n 1 rng) of (v, rng') -> (fromInteger (l + v `mod` k), rng')+ where+ k = h - l + 1+ b = 2147483561+ n = iLogBase b k++ f 0 acc g = (acc, g)+ f nn acc g = + let+ (x,g') = next g+ in+ f (nn-1) (fromIntegral x + acc * b) g'++randomIvalDouble :: (RandomGen g, Fractional a) =>+ (Double, Double) -> (Double -> a) -> g -> (a, g)+randomIvalDouble (l,h) fromDouble rng =+ if l > h+ then randomIvalDouble (h,l) fromDouble rng+ else+ case (randomIvalInteger (toInteger (minBound::Int), toInteger (maxBound::Int)) rng) of+ (x, rng') -> + let+ scaled_x = + fromDouble ((l+h)/2) + + fromDouble ((h-l) / realToFrac intRange) *+ fromIntegral (x::Int)+ in+ (scaled_x, rng')++intRange :: Integer+intRange = toInteger (maxBound::Int) - toInteger (minBound::Int)++iLogBase :: Integer -> Integer -> Integer+iLogBase b i = if i < b then 1 else 1 + iLogBase b (i `div` b)+
+ src/Sound/JACK/FFI.hs view
@@ -0,0 +1,131 @@+{-# OPTIONS -fffi #-}++{-+ JACK bindings for Haskell+ Copyright (C) 2007 Soenke Hahn++ This program is free software; you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation; either version 2 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License along+ with this program; if not, write to the Free Software Foundation, Inc.,+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.+-}++module Sound.JACK.FFI where++import Foreign.Ptr (Ptr, FunPtr)+import Foreign.C.String (CString)+import Foreign.C.Types (CUInt, CInt, CChar, CFloat, CULong)++import Data.Bits (setBit, bit)++import Data.Array(Ix)++++foreign import ccall "static jack/jack.h jack_client_open"+ client_open :: CString -> CULong -> Ptr CULong -> CString -> IO (Ptr ())++foreign import ccall "static jack/jack.h jack_client_new"+ client_new :: CString -> IO (Ptr ())+++data OpenOptions =+ NoStartServer+ | UseExactName+ | ServerName+ deriving (Enum, Eq, Ord, Show, Ix)++wordNullOption, wordNoStartServer, wordUseExactName, wordServerName :: CULong+wordNullOption = 0+wordNoStartServer = flagToWord NoStartServer+wordUseExactName = flagToWord UseExactName+wordServerName = flagToWord ServerName++++data Status =+ Failure+ | InvalidOption+ | NameNotUnique+ | ServerStarted+ | ServerFailed+ | ServerError+ | NoSuchClient+ | LoadFailure+ | InitFailure+ | ShmFailure+ | VersionError+ deriving (Enum, Eq, Ord, Show, Ix)++wordFailure, wordInvalidOption, wordNameNotUnique, wordServerStarted,+ wordServerFailed, wordServerError, wordNoSuchClient, wordLoadFailure,+ wordInitFailure, wordShmFailure, wordVersionError :: CULong+wordFailure = flagToWord Failure+wordInvalidOption = flagToWord InvalidOption+wordNameNotUnique = flagToWord NameNotUnique+wordServerStarted = flagToWord ServerStarted+wordServerFailed = flagToWord ServerFailed+wordServerError = flagToWord ServerError+wordNoSuchClient = flagToWord NoSuchClient+wordLoadFailure = flagToWord LoadFailure+wordInitFailure = flagToWord InitFailure+wordShmFailure = flagToWord ShmFailure+wordVersionError = flagToWord VersionError++++foreign import ccall "static jack/jack.h jack_port_register"+ port_register :: Ptr () -> Ptr (CChar) -> Ptr (CChar) -> + CULong -> CULong -> IO (Ptr ())++foreign import ccall "static jack/jack.h jack_set_process_callback"+ set_process_callback :: + Ptr () -> FunPtr (CUInt -> Ptr (CChar) -> IO (CInt)) -> Ptr (CChar) -> IO (CInt)++foreign import ccall "static jack/jack.h jack_port_get_buffer"+ port_get_buffer :: Ptr () -> CUInt -> IO (Ptr CFloat)++foreign import ccall "static jack/jack.h jack_get_buffer_size"+ get_buffer_size :: Ptr () -> IO (CUInt)++foreign import ccall "static jack/jack.h jack_activate"+ activate :: Ptr () -> IO (CInt)++foreign import ccall "static jack/jack.h jack_client_close"+ client_close :: Ptr () -> IO (CInt)++foreign import ccall "static jack/jack.h jack_get_ports"+ get_ports :: Ptr () -> Ptr (CChar) -> Ptr (CChar) -> CULong -> IO (Ptr (Ptr (CChar)))++foreign import ccall "static jack/jack.h jack_connect"+ connect :: Ptr () -> Ptr (CChar) -> Ptr (CChar) -> IO (CInt)++foreign import ccall "static jack/jack.h jack_port_unregister"+ port_unregister :: Ptr () -> Ptr () -> IO (CInt)++foreign import ccall "static jack/jack.h jack_deactivate"+ deactivate :: Ptr () -> IO (CInt)++++-- * Utility functions++flagToWord :: (Enum a) => a -> CULong+flagToWord = bit . fromEnum++flagsToWord :: (Enum a) => [a] -> CULong+flagsToWord = foldl setBit 0 . map fromEnum++wordToFlags :: (Enum a) => CULong -> [a]+wordToFlags =+ map fst . filter (odd . snd) .+ zip [toEnum 0 ..] . iterate (flip div 2)