From 4676c61a751387eac5635b64418661432e94208a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jurij=20Podgor=C5=A1ek?= <jurij@kompot.si>
Date: Wed, 14 Sep 2022 18:48:48 +0200
Subject: [PATCH] MIDI debug app helper

---
 mididebug.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 mididebug.js

diff --git a/mididebug.js b/mididebug.js
new file mode 100644
index 0000000..e4278ca
--- /dev/null
+++ b/mididebug.js
@@ -0,0 +1,16 @@
+const midi = require('midi')
+
+let mo = new midi.Output()
+let mi = new midi.Input()
+
+mo.openVirtualPort("debug-out")
+mi.openVirtualPort("debug-in")
+
+mi.on('message', (deltaTime, message) => {
+  // The message is an array of numbers corresponding to the MIDI bytes:
+  //   [status, data1, data2]
+  // https://www.cs.cf.ac.uk/Dave/Multimedia/node158.html has some helpful
+  // information interpreting the messages.
+  console.log(`midi in: ${message} d: ${deltaTime}`)
+  mo.send(message)
+})