portmidi 2.0

• portmidi for PolyML with virtual ports, all Portmidi functionalities are at your disposal except callback function
• You can use Portmidi without worry of pointers : just use device id or name
• please read tutor_eng.sml and execute lines step by step for getting started
• use modifier.sml to transform MIDI message from input to output (Presonus Atom SQ -only one channel- )
• create virtual "my-diato" midi ports for use with Ardour, Tracktion MuseScsore ...
• and use diato keyboard for entering, recording your music on Linux.
• these are examples for using read1 and write1 added to lib interface for realtime input-output
• portmidi libs are provided for 64bits : tested on Debian Linux, Mac Catalina and Windows 10
• compiled from https://github.com/PortMidi/portmidi
• read the portmidi doc at https://portmidi.github.io/portmidi_docs/

Installing PolyML

• download polyML https://codeload.github.com/polyml/polyml/tar.gz/refs/tags/v5.9
• go to terminal
• untar gz file with : tar xvf polyml-5.9.tar.gz
• cd polyml-5.9/
• ./configure
• make
• sudo make install
• you are ready for portmidi-sml

learn sml language

• if you don't know sml language read the book https://www.cl.cam.ac.uk/~lp15/MLbook/
• Book with solutions of exercices.

installing portmidi-sml and compile virtual port

• I provide already compiled portmidi dynamic library for facility, but if this don't work for you, you should compile portmidi yourself and modify the function "getLibMidi()" in the file PortmidiFFI.sml
• download https://github.com/jh-midi/portmidi-sml/archive/refs/heads/main.zip
• copy this file to your home directory
• unzip the file : unzip main.zip

create your virtual midi port (no need to be a programmer)

• cd portmidi-sml-main
• polyc virt.sml -o virtual-portmidi (compile the program )
• now you can create virtual midi port : ./virtual-portmidi diato-port
• you can create your in-out named ports : ./virtual-portmidi my-midi-port
• and you can use it with my diato program (refresh your chromium navigator) or another at your convenance

installing on windows

• NB you can't create virtual midi port on windows
• but you can use this library for filtering midi event create music,send sysex etc ...
• https://www.tobias-erichsen.de/software/loopmidi.html or another driver work well with windows
• Click Windows Cygwin : this is help for installing PolyML on Windows allowing compiling.

installing on Mac

It's the same as for Linux, but I was only able to compile for the Intel version (Catalina). Just modify PortmidiFFI.sml to add what is needed for M1 and M2.