Web MIDI API is now working with Jazz Soft plugin and the Chris Wilson shim

master
Michael Deal 2013-01-24 23:50:08 -08:00
parent 326fc9952a
commit 076f233d55
3 changed files with 83 additions and 67 deletions

View File

@ -22,6 +22,7 @@
// load the Jazz plugin
var o1 = document.createElement("object");
o1.style.cssText = "top: -500px; position: absolute;";
o1.id = "_Jazz" + Math.random() + "ie";
o1.classid = "CLSID:1ACE1618-1C7D-4561-AEE1-34842AA85E90";

View File

@ -1,26 +1,94 @@
/*
--------------------------------------------
MIDI.Plugin : 0.3 : 11/20/2012
MIDI.Plugin : 0.3.2 : 2013/01/24
--------------------------------------------
https://github.com/mudcube/MIDI.js
--------------------------------------------
MIDI.WebAudioAPI
MIDI.Flash
MIDI.HTML5
MIDI.GeneralMIDI
MIDI.channels
MIDI.keyToNote
MIDI.noteToKey
APIs:
MIDI.WebMIDIAPI
MIDI.WebAudioAPI
MIDI.Flash
MIDI.HTML5
--------------------------------------------
setMute?
getInstruments?
-------------------------------------
Helpers:
MIDI.GeneralMIDI
MIDI.channels
MIDI.keyToNote
MIDI.noteToKey
*/
if (typeof (MIDI) === "undefined") var MIDI = {};
(function() { "use strict";
/*
--------------------------------------------
Web MIDI API - Native Soundbank
--------------------------------------------
https://dvcs.w3.org/hg/audio/raw-file/tip/midi/specification.html
*/
(function () {
var plugin = null;
var output = null;
var channels = [];
var root = MIDI.WebMIDI = {};
root.connect = function (callback) {
MIDI.technology = "Web MIDI API";
navigator.requestMIDIAccess(function (access) {
plugin = access;
output = plugin.getOutput(0);
if (callback) callback();
}, function (err) {
console.log("uh-oh! Something went wrong! Error code: " + err.code );
});
};
MIDI.programChange = function (channel, program) { // change channel instrument
output.send([0xC0 + channel, program]);
};
MIDI.setVolume = function (channel, volume) { // set channel volume
output.send([0xB0 + channel, 0x07, volume]);
};
MIDI.noteOn = function (channel, note, velocity, delay) {
output.send([0x90 + channel, note, velocity], delay * 1000);
};
MIDI.noteOff = function (channel, note, delay) {
output.send([0x80 + channel, note], delay * 1000);
};
MIDI.chordOn = function (channel, chord, velocity, delay) {
for (var n = 0; n < chord.length; n ++) {
var note = chord[n];
output.send([0x90 + channel, note, velocity], delay * 1000);
}
};
MIDI.chordOff = function (channel, chord, delay) {
for (var n = 0; n < chord.length; n ++) {
var note = chord[n];
output.send([0x80, channel, note, velocity], delay * 1000);
}
};
MIDI.stopAllNotes = function () {
for (var channel = 0; channel < 16; channel ++) {
output.send([0xB0 + channel, 0x7B, 0]);
}
};
MIDI.getInput = function () {
return plugin.getInputs();
};
MIDI.getOutputs = function () {
return plugin.getOutputs();
};
})();
/*
--------------------------------------------
Web Audio API - OGG or MPEG Soundbank
@ -152,7 +220,6 @@ if (window.AudioContext || window.webkitAudioContext) (function () {
}
}
};
})();
/*
@ -370,60 +437,6 @@ if (window.Audio) (function () {
};
})();
/*
--------------------------------------------
WebMIDI - Native Soundbank
--------------------------------------------
*/
(function () {
var root = MIDI.WebMIDI = {};
root.connect = function (callback) {
// deferred loading of <applet>
MIDI.technology = "Web MIDI API";
if (callback) callback();
};
MIDI.programChange = function (channel, program) {
plugin.send([0xC0 + channel, program]);
};
MIDI.setVolume = function (n) {
};
MIDI.noteOn = function (channel, note, velocity, delay) {
plugin.send([0x90 + channel, note, velocity], delay * 1000);
};
MIDI.noteOff = function (channel, note, delay) {
plugin.send([0x80 + channel, note], delay * 1000);
};
MIDI.chordOn = function (channel, chord, velocity, delay) {
for (var key in chord) {
var note = chord[key];
plugin.send([0x90 + channel, note, velocity], delay * 1000);
}
};
MIDI.chordOff = function (channel, chord, delay) {
for (var key in chord) {
var note = chord[key];
plugin.send(0x80, channel, note, velocity, delay * 1000);
}
};
MIDI.stopAllNotes = function () {
};
MIDI.getInstruments = function() {
return [];
};
})();
/*
helper functions
*/

View File

@ -42,7 +42,9 @@ MIDI.loadPlugin = function(conf) {
}
}
if (type === "") {
if (window.webkitAudioContext) { // Chrome
if (navigator.requestMIDIAccess) {
type = "webmidi";
} else if (window.webkitAudioContext) { // Chrome
type = "webaudio";
} else if (window.Audio) { // Firefox
type = "audiotag";