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‎examples/bela/osc-basic/render.cpp‎

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/*
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____ _____ _ _
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| __ )| ____| | / \
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| _ \| _| | | / _ \
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| |_) | |___| |___ / ___ \
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|____/|_____|_____/_/ \_\
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http://bela.io
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*/
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/**
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\example Communication/OSC/render.cpp
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Open Sound Control
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------------------
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This example shows an implementation of OSC (Open Sound Control) which was
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developed at UC Berkeley Center for New Music and Audio Technology (CNMAT).
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It is designed to be run alongside resources/osc/osc.js.
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For the example to work, run in a terminal on the board
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```
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node /root/Bela/resources/osc/osc.js
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```
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In `setup()` an OSC message to address `/osc-setup`, it then waits
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1 second for a reply on `/osc-setup-reply`.
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After that, OSC communication takes place in the on_receive() callback,
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which is called every time a new message comes in.
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*/
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#include <Bela.h>
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#include <libraries/OscSender/OscSender.h>
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#include <libraries/OscReceiver/OscReceiver.h>
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OscReceiver oscReceiver;
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OscSender oscSender;
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int localPort = 8888;
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int remotePort = 9999;
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const char* remoteIp = "127.0.0.1";
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// parse messages received by the OSC receiver
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// msg is Message class of oscpkt: http://gruntthepeon.free.fr/oscpkt/
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bool handshakeReceived;
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void on_receive(oscpkt::Message* msg, void* arg)
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{
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if(msg->match("/bela/osc-setup-reply"))
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handshakeReceived = true;
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else if(msg->match("/bela/osc-test")){
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int intArg;
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float floatArg;
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msg->match("/bela/osc-test").popInt32(intArg).popFloat(floatArg).isOkNoMoreArgs();
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printf("received a message with int %i and float %f\n", intArg, floatArg);
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oscSender.newMessage("/bela/osc-acknowledge").add(intArg).add(4.2f).add(std::string("OSC message received")).send();
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}
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}
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bool setup(BelaContext *context, void *userData)
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{
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oscReceiver.setup(localPort, on_receive);
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oscSender.setup(remotePort, remoteIp);
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// the following code sends an OSC message to address /osc-setup
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// then waits 1 second for a reply on /osc-setup-reply
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oscSender.newMessage("/bela/osc-setup").send();
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int count = 0;
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int timeoutCount = 10;
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printf("Waiting for handshake ....\n");
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while(!handshakeReceived && ++count != timeoutCount)
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{
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usleep(100000);
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}
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if (handshakeReceived) {
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printf("handshake received!\n");
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} else {
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printf("timeout! : did you start the iipyper server? `python server.py`\n");
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return false;
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}
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return true;
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}
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void render(BelaContext *context, void *userData)
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{
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}
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void cleanup(BelaContext *context, void *userData)
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{
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}

‎examples/bela/osc-basic/server.py‎

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"""
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Authors:
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Victor Shepardson
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Jack Armitage
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Intelligent Instruments Lab 2022
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"""
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from iipyper import OSC, run
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def main(host="127.0.0.1", port=9999, checkpoint=None):
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osc = OSC(host, port)
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osc.create_client('bela', port=8888)
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connected = False
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count = 0
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@osc.kwargs('/bela/*')
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def _(address, **kw):
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"""
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Handle OSC messages from Bela
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"""
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print(f"{address} {kw}")
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address = address.split("/")
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cmd = address[2]
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if cmd=="osc-setup":
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connected = True
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osc("bela", "osc-setup-reply", "")
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elif cmd=="osc-acknowledge":
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print(f"Bela: test acknowledged: {kw}")
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else:
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print(f"Bela: Unrecognised OSC {address} with {kw}")
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if connected=True:
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osc("bela", "osc-test", [count++, 3.14])
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if __name__=='__main__':
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run(main)

‎examples/bela/readme.md‎

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Unless otherwise stated, these examples assume a set up of a Bela device connected to a laptop, where the `server.py` is running on the laptop.
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- `osc-basic`: basic OSC communication with Bela
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- ``: ...
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## C++
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- `cpp-osc-basic`: basic OSC communication with Bela
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- `cpp-osc-basic-gui`: basic OSC communication with Bela with a Bela GUI
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- `cpp-osc-basic-gui-svelte`: basic OSC communication with Bela with a Svelte GUI
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- `cpp-osc-recorder`: record data received from Bela
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- `cpp-osc-resonators`: controlling the Resonators library
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- `cpp-osc-scope`: controlling the Bela scope
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- `cpp-osc-trill`: using Trill sensors
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## SuperCollider
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- `scd-osc-basic`:
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## Pure Data
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- `pd-osc-basic`:
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## Csound
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- `cs-osc-basic`:
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## Faust
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- `faust-osc-basic`:

‎examples/tidalcycles/OSCTarget.hs‎

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-- Target
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:{
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iipyTarget = Target {oName = "iipyper",
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oAddress = "127.0.0.1",
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oHandshake = True,
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oPort = 8000,
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oBusPort = Just 8001,
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oLatency = 0.2,
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oWindow = Nothing,
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oSchedule = Pre BundleStamp
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}
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:}
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-- OSC Specs
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:{
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iipyOSCSpecs = [OSC "/path/{path1}/" $ ArgList [("param1", Nothing),
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("delta", Just $ VF 0),
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("cycle", Just $ VF 0),
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("cps", Just $ VF 0)],
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OSC "/path/{path2}/" $ ArgList [("param2", Nothing),
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("delta", Just $ VF 0),
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("cycle", Just $ VF 0),
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("cps", Just $ VF 0)]]
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:}
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-- Parameters
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:{
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let path1 = pS "path1"
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path2 = pS "path2"
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param1 = pF "param1"
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param2 = pF "param2"
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:}
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-- OSC Map
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iipyOscMap = (iipyTarget, iipyOSCSpecs)

‎examples/tidalcycles/iipyper.tidal‎

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{-
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-}
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d1
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$ path1 "something"
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# param1 0.5
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d2
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$ path2 "something"
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# param2 0.5
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hush
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{-
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-}
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d1 $ s (cP "bd" "d1pattern")
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‎examples/tidalcycles/readme.md‎

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# `iipyper` TidalCycles example
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## Tidal to `iipyper`
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- `OSCTarget.hs`: this allows Tidal to send messages to `iipyper`
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## `iipyper` to Tidal
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- https://tidalcycles.org/docs/configuration/MIDIOSC/osc#controller-input
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+ https://github.com/tidalcycles/Tidal/issues/677
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## `iipyper` to SuperDirt
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