update to latest libraries
This commit is contained in:
Michael Deal
parent
61f1a05ebe
commit
eb21d1f743
31 changed files with 2935 additions and 1227 deletions
282
js/MIDI/Player.js
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282
js/MIDI/Player.js
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/*
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MIDI.Player : 0.3
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-------------------------------------
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https://github.com/mudcube/MIDI.js
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-------------------------------------
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requires jasmid
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*/
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if (typeof (MIDI) === "undefined") var MIDI = {};
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if (typeof (MIDI.Player) === "undefined") MIDI.Player = {};
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(function() { "use strict";
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var root = MIDI.Player;
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root.callback = undefined; // your custom callback goes here!
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root.currentTime = 0;
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root.endTime = 0;
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root.restart = 0;
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root.playing = false;
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root.timeWarp = 1;
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//
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root.start =
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root.resume = function () {
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if (root.currentTime < -1) root.currentTime = -1;
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startAudio(root.currentTime);
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};
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root.pause = function () {
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var tmp = root.restart;
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stopAudio();
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root.restart = tmp;
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};
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root.stop = function () {
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stopAudio();
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root.restart = 0;
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root.currentTime = 0;
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};
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root.addListener = function(callback) {
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onMidiEvent = callback;
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};
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root.removeListener = function() {
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onMidiEvent = undefined;
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};
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root.clearAnimation = function() {
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if (root.interval) {
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window.clearInterval(root.interval);
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}
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};
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root.setAnimation = function(config) {
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var callback = (typeof(config) === "function") ? config : config.callback;
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var interval = config.interval || 30;
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var currentTime = 0;
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var tOurTime = 0;
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var tTheirTime = 0;
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//
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root.clearAnimation();
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root.interval = window.setInterval(function () {
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if (root.endTime === 0) return;
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if (root.playing) {
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currentTime = (tTheirTime === root.currentTime) ? tOurTime - (new Date).getTime() : 0;
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if (root.currentTime === 0) {
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currentTime = 0;
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} else {
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currentTime = root.currentTime - currentTime;
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}
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if (tTheirTime !== root.currentTime) {
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tOurTime = (new Date).getTime();
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tTheirTime = root.currentTime;
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}
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} else { // paused
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currentTime = root.currentTime;
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}
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var endTime = root.endTime;
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var percent = currentTime / endTime;
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var total = currentTime / 1000;
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var minutes = total / 60;
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var seconds = total - (minutes * 60);
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var t1 = minutes * 60 + seconds;
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var t2 = (endTime / 1000);
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if (t2 - t1 < -1) return;
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callback({
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now: t1,
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end: t2,
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events: noteRegistrar
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});
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}, interval);
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};
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// helpers
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root.loadMidiFile = function() { // reads midi into javascript array of events
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root.replayer = new Replayer(MidiFile(root.currentData), root.timeWarp);
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root.data = root.replayer.getData();
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root.endTime = getLength();
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};
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root.loadFile = function (file, callback) {
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root.stop();
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if (file.indexOf("base64,") !== -1) {
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var data = window.atob(file.split(",")[1]);
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root.currentData = data;
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root.loadMidiFile();
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if (callback) callback(data);
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return;
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}
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///
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var title = file.split(" - ")[1] || file;
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document.getElementById("playback-title").innerHTML = title.replace(".mid","");
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///
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var fetch = new XMLHttpRequest();
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fetch.open('GET', file);
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fetch.overrideMimeType("text/plain; charset=x-user-defined");
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fetch.onreadystatechange = function () {
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if (this.readyState === 4 && this.status === 200) {
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var t = this.responseText || "";
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var ff = [];
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var mx = t.length;
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var scc = String.fromCharCode;
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for (var z = 0; z < mx; z++) {
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ff[z] = scc(t.charCodeAt(z) & 255);
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}
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var data = ff.join("");
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root.currentData = data;
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root.loadMidiFile();
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if (callback) callback(data);
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}
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};
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fetch.send();
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};
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// Playing the audio
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var eventQueue = []; // hold events to be triggered
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var queuedTime; //
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var startTime = 0; // to measure time elapse
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var noteRegistrar = {}; // get event for requested note
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var onMidiEvent = undefined; // listener callback
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var scheduleTracking = function (channel, note, currentTime, offset, message, velocity) {
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var interval = window.setTimeout(function () {
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var data = {
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channel: channel,
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note: note,
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now: currentTime,
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end: root.endTime,
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message: message,
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velocity: velocity
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};
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//
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if (message === 128) {
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delete noteRegistrar[note];
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} else {
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noteRegistrar[note] = data;
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}
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if (onMidiEvent) {
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onMidiEvent(data);
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}
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root.currentTime = currentTime;
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if (root.currentTime === queuedTime && queuedTime < root.endTime) { // grab next sequence
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startAudio(queuedTime, true);
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}
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}, currentTime - offset);
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return interval;
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};
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var getContext = function() {
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if (MIDI.lang === 'WebAudioAPI') {
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return MIDI.Player.ctx;
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} else if (!root.ctx) {
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root.ctx = { currentTime: 0 };
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}
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return root.ctx;
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};
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var getLength = function() {
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var data = root.data;
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var length = data.length;
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var totalTime = 0.5;
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for (var n = 0; n < length; n++) {
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totalTime += data[n][1];
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}
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return totalTime;
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};
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var startAudio = function (currentTime, fromCache) {
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if (!root.replayer) return;
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if (!fromCache) {
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if (typeof (currentTime) === "undefined") currentTime = root.restart;
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if (root.playing) stopAudio();
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root.playing = true;
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root.data = root.replayer.getData();
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root.endTime = getLength();
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}
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var note;
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var offset = 0;
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var messages = 0;
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var data = root.data;
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var ctx = getContext();
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var length = data.length;
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//
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queuedTime = 0.5;
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startTime = ctx.currentTime;
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//
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for (var n = 0; n < length && messages < 100; n++) {
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queuedTime += data[n][1];
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if (queuedTime <= currentTime) {
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offset = queuedTime;
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continue;
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}
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currentTime = queuedTime - offset;
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var event = data[n][0].event;
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if (event.type !== "channel") continue;
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var channel = event.channel;
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switch (event.subtype) {
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case 'noteOn':
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if (MIDI.channels[channel].mute) break;
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note = event.noteNumber - (root.MIDIOffset || 0);
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eventQueue.push({
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event: event,
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source: MIDI.noteOn(channel, event.noteNumber, event.velocity, currentTime / 1000 + ctx.currentTime),
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interval: scheduleTracking(channel, note, queuedTime, offset, 144, event.velocity)
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});
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messages ++;
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break;
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case 'noteOff':
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if (MIDI.channels[channel].mute) break;
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note = event.noteNumber - (root.MIDIOffset || 0);
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eventQueue.push({
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event: event,
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source: MIDI.noteOff(channel, event.noteNumber, currentTime / 1000 + ctx.currentTime),
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interval: scheduleTracking(channel, note, queuedTime, offset - 10, 128)
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});
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break;
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default:
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break;
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}
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}
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};
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var stopAudio = function () {
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var ctx = getContext();
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root.playing = false;
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root.restart += (ctx.currentTime - startTime) * 1000;
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// stop the audio, and intervals
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while (eventQueue.length) {
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var o = eventQueue.pop();
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window.clearInterval(o.interval);
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if (!o.source) continue; // is not webaudio
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if (typeof(o.source) === "number") {
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window.clearTimeout(o.source);
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} else { // webaudio
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var source = o.source;
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source.disconnect(0);
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source.noteOff(0);
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}
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}
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// run callback to cancel any notes still playing
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for (var key in noteRegistrar) {
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var o = noteRegistrar[key]
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if (noteRegistrar[key].message === 144 && onMidiEvent) {
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onMidiEvent({
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channel: o.channel,
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note: o.note,
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now: o.now,
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end: o.end,
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message: 128,
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velocity: o.velocity
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});
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}
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}
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// reset noteRegistrar
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noteRegistrar = {};
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};
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})();
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486
js/MIDI/Plugin.js
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486
js/MIDI/Plugin.js
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@ -0,0 +1,486 @@
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/*
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MIDI.Plugin : 0.3
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-------------------------------------
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https://github.com/mudx/MIDI.js
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-------------------------------------
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MIDI.WebAudioAPI
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MIDI.Flash
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MIDI.HTML5
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MIDI.instruments
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MIDI.channels
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MIDI.keyToNote
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MIDI.noteToKey
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setMute?
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getInstruments?
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*/
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if (typeof (MIDI) === "undefined") var MIDI = {};
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if (typeof (MIDI.Plugin) === "undefined") MIDI.Plugin = {};
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(function() { "use strict";
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/*
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Web Audio API - OGG or MPEG Soundbank
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--------------------------------------
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https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html
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*/
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if (typeof (MIDI.WebAudioAPI) === "undefined") MIDI.WebAudioAPI = {};
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if (window.AudioContext || window.webkitAudioContext) (function () {
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var AudioContext = window.AudioContext || window.webkitAudioContext;
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var root = MIDI.WebAudioAPI;
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var ctx;
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var sources = {};
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var masterVolume = 1;
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var audioBuffers = {};
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var audioLoader = function (urlList, index, bufferList, oncomplete) {
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var url = urlList[index];
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var base64 = MIDI.Soundfont[url].split(",")[1];
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var buffer = Base64Binary.decodeArrayBuffer(base64);
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ctx.decodeAudioData(buffer, function (buffer) {
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var msg = url; while(msg.length < 3) msg += " ";
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if (typeof(loader) !== "undefined") {
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loader.message("Downloading: 100%<br>Processing: "+(index/87 * 100 >> 0)+"%<br>" + msg);
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}
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buffer.id = url;
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bufferList[index] = buffer;
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//
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if (bufferList.length === urlList.length) {
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while (bufferList.length) {
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buffer = bufferList.pop();
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var nodeId = MIDI.keyToNote[buffer.id];
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audioBuffers[nodeId] = buffer;
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}
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oncomplete();
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}
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});
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};
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root.setVolume = function (n) {
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masterVolume = n;
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};
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root.programChange = function (instrument) {
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};
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root.noteOn = function (channel, note, velocity, delay) {
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/// check whether the note exists
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if (!audioBuffers[note]) return;
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/// convert relative delay to absolute delay
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if (delay < ctx.currentTime) delay += ctx.currentTime;
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/// crate audio buffer
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var source = ctx.createBufferSource();
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sources[channel + "" + note] = source;
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source.buffer = audioBuffers[note];
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source.connect(ctx.destination);
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//
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var gainNode = ctx.createGainNode();
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var value = -0.5 + (velocity / 100) * 2;
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var minus = (1 - masterVolume) * 2;
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gainNode.connect(ctx.destination);
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gainNode.gain.value = Math.max(-1, value - minus);
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source.connect(gainNode);
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//
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// source.playbackRate.value = 2;
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///
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source.noteOn(delay || 0);
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return source;
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};
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root.chordOn = function (channel, chord, velocity, delay) {
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var ret = {}, note;
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for (var n = 0, length = chord.length; n < length; n ++) {
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ret[note = chord[n]] = root.noteOn(channel, note, velocity, delay);
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}
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return ret;
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};
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// FIX: needs some way to fade out smoothly..
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root.noteOff = function (channel, note, delay) {
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// var source = sources[channel+""+note];
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// if (!source) return;
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// source.noteOff(delay || 0);
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// return source;
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};
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root.chordOff = function (channel, chord, delay) {
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};
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root.connect = function (callback) {
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MIDI.lang = 'WebAudioAPI';
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MIDI.setVolume = root.setVolume;
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MIDI.programChange = root.programChange;
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MIDI.noteOn = root.noteOn;
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MIDI.noteOff = root.noteOff;
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MIDI.chordOn = root.chordOn;
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MIDI.chordOff = root.chordOff;
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//
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MIDI.Player.ctx = ctx = new AudioContext();
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///
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var urlList = [];
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var keyToNote = MIDI.keyToNote;
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for (var key in keyToNote) urlList.push(key);
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var bufferList = [];
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for (var i = 0; i < urlList.length; i++) {
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audioLoader(urlList, i, bufferList, callback);
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}
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};
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})();
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/*
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HTML5 <audio> - OGG or MPEG Soundbank
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--------------------------------------
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http://dev.w3.org/html5/spec/Overview.html#the-audio-element
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*/
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if (window.Audio) (function () {
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var root = MIDI.HTML5 = {};
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var note2id = {};
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var volume = 1; // floating point
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var channel_nid = -1; // current channel
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var channel_map = {}; // map to current playing <audio> elements
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var channels = []; // the audio channels
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var notes = {}; // the piano keys
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for (var nid = 0; nid < 12; nid++) {
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channels[nid] = new Audio();
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}
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var playChannel = function (id) {
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var note = notes[id];
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if (!note) return;
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var nid = (channel_nid + 1) % channels.length;
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var time = (new Date()).getTime();
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var audio = channels[nid];
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channel_map[note.id] = audio;
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audio.src = MIDI.Soundfont[note.id];
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audio.volume = volume;
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audio.play();
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channel_nid = nid;
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};
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root.programChange = function () {
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};
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root.setVolume = function (n) {
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volume = n;
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};
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root.noteOn = function (channel, note, velocity, delay) {
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var id = note2id[note];
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if (!notes[id]) return;
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if (delay) {
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var interval = window.setTimeout(function() {
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playChannel(id);
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}, delay * 1000);
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return interval;
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} else {
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playChannel(id);
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}
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};
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root.noteOff = function (channel, note, delay) {
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// var nid = note2id[note];
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// channel_map[nid].pause();
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};
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root.chordOn = function (channel, chord, velocity, delay) {
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for (var key in chord) {
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var n = chord[key];
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var id = note2id[n];
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if (!notes[id]) continue;
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playChannel(id);
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}
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};
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root.chordOff = function (channel, chord, delay) {
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};
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root.stopAllNotes = function () {
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for (var nid = 0, length = channels.length; nid < length; nid++) {
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channels[nid].pause();
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}
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};
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root.connect = function (callback) {
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var loading = {};
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for (var key in MIDI.keyToNote) {
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note2id[MIDI.keyToNote[key]] = key;
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notes[key] = {
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id: key
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};
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}
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MIDI.lang = 'HTML5';
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MIDI.setVolume = root.setVolume;
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MIDI.programChange = root.programChange;
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MIDI.noteOn = root.noteOn;
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MIDI.noteOff = root.noteOff;
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MIDI.chordOn = root.chordOn;
|
||||
MIDI.chordOff = root.chordOff;
|
||||
//
|
||||
if (callback) callback();
|
||||
//
|
||||
};
|
||||
})();
|
||||
|
||||
/*
|
||||
Flash - MP3 Soundbank
|
||||
----------------------
|
||||
http://www.schillmania.com/projects/soundmanager2/
|
||||
|
||||
*/
|
||||
|
||||
(function () {
|
||||
|
||||
var root = MIDI.Flash = {};
|
||||
var noteReverse = {};
|
||||
var notes = {};
|
||||
root.programChange = function () {
|
||||
|
||||
};
|
||||
root.setVolume = function (channel, note) {
|
||||
|
||||
};
|
||||
root.noteOn = function (channel, note, velocity, delay) {
|
||||
var id = noteReverse[note];
|
||||
if (!notes[id]) return;
|
||||
if (delay) {
|
||||
var interval = window.setTimeout(function() {
|
||||
notes[id].play({ volume: velocity * 2 });
|
||||
}, delay * 1000);
|
||||
return interval;
|
||||
} else {
|
||||
notes[id].play({ volume: velocity * 2 });
|
||||
}
|
||||
};
|
||||
root.noteOff = function (channel, note, delay) {
|
||||
|
||||
};
|
||||
root.chordOn = function (channel, chord, velocity, delay) {
|
||||
for (var key in chord) {
|
||||
var n = chord[key];
|
||||
var id = noteReverse[n];
|
||||
if (notes[id]) {
|
||||
notes[id].play({ volume: velocity * 2 });
|
||||
}
|
||||
}
|
||||
};
|
||||
root.chordOff = function (channel, chord, delay) {
|
||||
|
||||
};
|
||||
root.stopAllNotes = function () {
|
||||
|
||||
};
|
||||
root.connect = function (callback) {
|
||||
soundManager.flashVersion = 9;
|
||||
soundManager.useHTML5Audio = true;
|
||||
soundManager.url = '../inc/SoundManager2/swf/';
|
||||
soundManager.useHighPerformance = true;
|
||||
soundManager.wmode = 'transparent';
|
||||
soundManager.flashPollingInterval = 1;
|
||||
soundManager.debugMode = false;
|
||||
soundManager.onload = function () {
|
||||
var loaded = [];
|
||||
var onload = function () {
|
||||
loaded.push(this.sID);
|
||||
if (typeof (loader) === "undefined") return;
|
||||
loader.message("Processing: " + this.sID);
|
||||
};
|
||||
for (var i = 0; i < 88; i++) {
|
||||
var id = noteReverse[i + 21];
|
||||
notes[id] = soundManager.createSound({
|
||||
id: id,
|
||||
url: './soundfont/mp3/' + id + '.mp3',
|
||||
multiShot: true,
|
||||
autoLoad: true,
|
||||
onload: onload
|
||||
});
|
||||
}
|
||||
MIDI.lang = 'Flash';
|
||||
MIDI.setVolume = root.setVolume;
|
||||
MIDI.programChange = root.programChange;
|
||||
MIDI.noteOn = root.noteOn;
|
||||
MIDI.noteOff = root.noteOff;
|
||||
MIDI.chordOn = root.chordOn;
|
||||
MIDI.chordOff = root.chordOff;
|
||||
//
|
||||
var interval = window.setInterval(function () {
|
||||
if (loaded.length !== 88) return;
|
||||
window.clearInterval(interval);
|
||||
if (callback) callback();
|
||||
}, 25);
|
||||
};
|
||||
soundManager.onerror = function () {
|
||||
|
||||
};
|
||||
for (var key in MIDI.keyToNote) {
|
||||
noteReverse[MIDI.keyToNote[key]] = key;
|
||||
}
|
||||
};
|
||||
})();
|
||||
|
||||
/*
|
||||
Java - Native Soundbank
|
||||
----------------------------
|
||||
https://github.com/abudaan/midibridge-js
|
||||
http://java.sun.com/products/java-media/sound/soundbanks.html
|
||||
*/
|
||||
|
||||
(function () {
|
||||
var root = MIDI.Java = {};
|
||||
root.connect = function (callback) {
|
||||
// deferred loading of <applet>
|
||||
MIDI.Plugin = false;
|
||||
if (!window.navigator.javaEnabled()) {
|
||||
MIDI.Flash.connect(callback);
|
||||
return;
|
||||
}
|
||||
MIDI.Java.callback = callback;
|
||||
var iframe = document.createElement('iframe');
|
||||
iframe.name = 'MIDIFrame';
|
||||
iframe.src = 'inc/midibridge/index.html';
|
||||
iframe.width = 1;
|
||||
iframe.height = 1;
|
||||
document.body.appendChild(iframe);
|
||||
};
|
||||
root.confirm = function (plugin) {
|
||||
MIDI.programChange = function (program) {
|
||||
plugin.sendMidiEvent(0xC0, 0, program, 0);
|
||||
};
|
||||
MIDI.setVolume = function (n) {
|
||||
|
||||
};
|
||||
MIDI.noteOn = function (channel, note, velocity, delay) {
|
||||
if (delay) {
|
||||
var interval = window.setTimeout(function() {
|
||||
plugin.sendMidiEvent(0x90, channel, note, velocity);
|
||||
}, delay * 1000);
|
||||
return interval;
|
||||
} else {
|
||||
plugin.sendMidiEvent(0x90, channel, note, velocity);
|
||||
}
|
||||
};
|
||||
MIDI.noteOff = function (channel, note, delay) {
|
||||
if (delay) {
|
||||
var interval = window.setTimeout(function() {
|
||||
plugin.sendMidiEvent(0x80, channel, note, 0);
|
||||
}, delay * 1000);
|
||||
return interval;
|
||||
} else {
|
||||
plugin.sendMidiEvent(0x80, channel, note, 0);
|
||||
}
|
||||
};
|
||||
MIDI.chordOn = function (channel, chord, velocity, delay) {
|
||||
for (var key in chord) {
|
||||
var n = chord[key];
|
||||
plugin.sendMidiEvent(0x90, channel, n, 100);
|
||||
}
|
||||
};
|
||||
MIDI.chordOff = function (channel, chord, delay) {
|
||||
for (var key in chord) {
|
||||
var n = chord[key];
|
||||
plugin.sendMidiEvent(0x80, channel, n, 100);
|
||||
}
|
||||
};
|
||||
MIDI.stopAllNotes = function () {
|
||||
|
||||
};
|
||||
MIDI.getInstruments = function() {
|
||||
return [];
|
||||
};
|
||||
///
|
||||
if (plugin.ready) {
|
||||
MIDI.lang = "Java";
|
||||
if (MIDI.Java.callback) {
|
||||
MIDI.Java.callback();
|
||||
}
|
||||
} else {
|
||||
MIDI.Flash.connect(MIDI.Java.callback);
|
||||
}
|
||||
};
|
||||
})();
|
||||
|
||||
/*
|
||||
helper functions
|
||||
*/
|
||||
|
||||
// instrument-tracker
|
||||
MIDI.instruments = (function (arr) {
|
||||
var instruments = {};
|
||||
for (var key in arr) {
|
||||
var list = arr[key];
|
||||
for (var n = 0, length = list.length; n < length; n++) {
|
||||
var instrument = list[n];
|
||||
if (!instrument) continue;
|
||||
var num = parseInt(instrument.substr(0, instrument.indexOf(" ")), 10);
|
||||
instrument = instrument.replace(num + " ", "");
|
||||
instruments[--num] = {
|
||||
instrument: instrument,
|
||||
category: key
|
||||
};
|
||||
instruments[instrument] = {
|
||||
number: num,
|
||||
category: key
|
||||
};
|
||||
}
|
||||
}
|
||||
return instruments;
|
||||
})({
|
||||
'Piano': ['1 Acoustic Grand Piano', '2 Bright Acoustic Piano', '3 Electric Grand Piano', '4 Honky-tonk Piano', '5 Electric Piano 1', '6 Electric Piano 2', '7 Harpsichord', '8 Clavinet'],
|
||||
'Chromatic Percussion': ['9 Celesta', '10 Glockenspiel', '11 Music Box', '12 Vibraphone', '13 Marimba', '14 Xylophone', '15 Tubular Bells', '16 Dulcimer'],
|
||||
'Organ': ['17 Drawbar Organ', '18 Percussive Organ', '19 Rock Organ', '20 Church Organ', '21 Reed Organ', '22 Accordion', '23 Harmonica', '24 Tango Accordion'],
|
||||
'Guitar': ['25 Acoustic Guitar (nylon)', '26 Acoustic Guitar (steel)', '27 Electric Guitar (jazz)', '28 Electric Guitar (clean)', '29 Electric Guitar (muted)', '30 Overdriven Guitar', '31 Distortion Guitar', '32 Guitar Harmonics'],
|
||||
'Bass': ['33 Acoustic Bass', '34 Electric Bass (finger)', '35 Electric Bass (pick)', '36 Fretless Bass', '37 Slap Bass 1', '38 Slap Bass 2', '39 Synth Bass 1', '40 Synth Bass 2'],
|
||||
'Strings': ['41 Violin', '42 Viola', '43 Cello', '44 Contrabass', '45 Tremolo Strings', '46 Pizzicato Strings', '47 Orchestral Harp', '48 Timpani'],
|
||||
'Ensemble': ['49 String Ensemble 1', '50 String Ensemble 2', '51 Synth Strings 1', '52 Synth Strings 2', '53 Choir Aahs', '54 Voice Oohs', '55 Synth Choir', '56 Orchestra Hit'],
|
||||
'Brass': ['57 Trumpet', '58 Trombone', '59 Tuba', '60 Muted Trumpet', '61 French Horn', '62 Brass Section', '63 Synth Brass 1', '64 Synth Brass 2'],
|
||||
'Reed': ['65 Soprano Sax', '66 Alto Sax', '67 Tenor Sax', '68 Baritone Sax', '69 Oboe', '70 English Horn', '71 Bassoon', '72 Clarinet'],
|
||||
'Pipe': ['73 Piccolo', '74 Flute', '75 Recorder', '76 Pan Flute', '77 Blown Bottle', '78 Shakuhachi', '79 Whistle', '80 Ocarina'],
|
||||
'Synth Lead': ['81 Lead 1 (square)', '82 Lead 2 (sawtooth)', '83 Lead 3 (calliope)', '84 Lead 4 (chiff)', '85 Lead 5 (charang)', '86 Lead 6 (voice)', '87 Lead 7 (fifths)', '88 Lead 8 (bass + lead)'],
|
||||
'Synth Pad': ['89 Pad 1 (new age)', '90 Pad 2 (warm)', '91 Pad 3 (polysynth)', '92 Pad 4 (choir)', '93 Pad 5 (bowed)', '94 Pad 6 (metallic)', '95 Pad 7 (halo)', '96 Pad 8 (sweep)'],
|
||||
'Synth Effects': ['97 FX 1 (rain)', '98 FX 2 (soundtrack)', '99 FX 3 (crystal)', '100 FX 4 (atmosphere)', '101 FX 5 (brightness)', '102 FX 6 (goblins)', '103 FX 7 (echoes)', '104 FX 8 (sci-fi)'],
|
||||
'Ethnic': ['105 Sitar', '106 Banjo', '107 Shamisen', '108 Koto', '109 Kalimba', '110 Bagpipe', '111 Fiddle', '112 Shanai'],
|
||||
'Percussive': ['113 Tinkle Bell', '114 Agogo', '115 Steel Drums', '116 Woodblock', '117 Taiko Drum', '118 Melodic Tom', '119 Synth Drum'],
|
||||
'Sound effects': ['120 Reverse Cymbal', '121 Guitar Fret Noise', '122 Breath Noise', '123 Seashore', '124 Bird Tweet', '125 Telephone Ring', '126 Helicopter', '127 Applause', '128 Gunshot']
|
||||
});
|
||||
|
||||
// channel-tracker
|
||||
MIDI.channels = (function () { // 0 - 15 channels
|
||||
var channels = {};
|
||||
for (var n = 0; n < 16; n++) {
|
||||
channels[n] = { // default values
|
||||
instrument: 0,
|
||||
// Acoustic Grand Piano
|
||||
mute: false,
|
||||
mono: false,
|
||||
omni: false,
|
||||
solo: false
|
||||
};
|
||||
}
|
||||
return channels;
|
||||
})();
|
||||
|
||||
// note conversions
|
||||
MIDI.keyToNote = {}; // C8 == 108
|
||||
MIDI.noteToKey = {}; // 108 == C8
|
||||
(function () {
|
||||
var A0 = 0x15; // first note
|
||||
var C8 = 0x6C; // last note
|
||||
var number2key = ["C", "Db", "D", "Eb", "E", "F", "Gb", "G", "Ab", "A", "Bb", "B"];
|
||||
for (var n = A0; n <= C8; n++) {
|
||||
var octave = (n - 12) / 12 >> 0;
|
||||
var name = number2key[n % 12] + octave;
|
||||
MIDI.keyToNote[name] = n;
|
||||
MIDI.noteToKey[n] = name;
|
||||
}
|
||||
})();
|
||||
|
||||
})();
|
||||
|
||||
MIDI.pianoKeyOffset = 21;
|
||||
63
js/MIDI/audioDetect.js
Normal file
63
js/MIDI/audioDetect.js
Normal file
|
|
@ -0,0 +1,63 @@
|
|||
/*
|
||||
|
||||
MIDI.audioDetect : 0.3
|
||||
-------------------------------------
|
||||
https://github.com/mudx/MIDI.js
|
||||
-------------------------------------
|
||||
Probably, Maybe, No... Absolutely!
|
||||
-------------------------------------
|
||||
Test to see what types of <audio> MIME types are playable by the browser.
|
||||
|
||||
*/
|
||||
|
||||
if (typeof(MIDI) === "undefined") var MIDI = {};
|
||||
|
||||
(function() { "use strict";
|
||||
|
||||
var supports = {};
|
||||
var canPlayThrough = function (src) {
|
||||
var audio = new Audio();
|
||||
var mime = src.split(";")[0];
|
||||
audio.id = "audio";
|
||||
audio.setAttribute("preload", "auto");
|
||||
audio.setAttribute("audiobuffer", true);
|
||||
audio.addEventListener("canplaythrough", function() {
|
||||
supports[mime] = true;
|
||||
}, false);
|
||||
audio.src = "data:" + src;
|
||||
document.body.appendChild(audio);
|
||||
};
|
||||
|
||||
MIDI.audioDetect = function(callback) {
|
||||
// check whether <audio> tag is supported
|
||||
if (typeof(Audio) === "undefined") return callback({});
|
||||
// check whether canPlayType is supported
|
||||
var audio = new Audio();
|
||||
if (typeof(audio.canPlayType) === "undefined") return callback(supports);
|
||||
// see what we can learn from the browser
|
||||
var vorbis = audio.canPlayType('audio/ogg; codecs="vorbis"');
|
||||
vorbis = (vorbis === "probably" || vorbis === "maybe");
|
||||
var mpeg = audio.canPlayType('audio/mpeg');
|
||||
mpeg = (mpeg === "probably" || mpeg === "maybe");
|
||||
// maybe nothing is supported
|
||||
if (!vorbis && !mpeg) {
|
||||
callback(supports);
|
||||
return;
|
||||
}
|
||||
// or maybe something is supported
|
||||
if (vorbis) canPlayThrough("audio/ogg;base64,T2dnUwACAAAAAAAAAADqnjMlAAAAAOyyzPIBHgF2b3JiaXMAAAAAAUAfAABAHwAAQB8AAEAfAACZAU9nZ1MAAAAAAAAAAAAA6p4zJQEAAAANJGeqCj3//////////5ADdm9yYmlzLQAAAFhpcGguT3JnIGxpYlZvcmJpcyBJIDIwMTAxMTAxIChTY2hhdWZlbnVnZ2V0KQAAAAABBXZvcmJpcw9CQ1YBAAABAAxSFCElGVNKYwiVUlIpBR1jUFtHHWPUOUYhZBBTiEkZpXtPKpVYSsgRUlgpRR1TTFNJlVKWKUUdYxRTSCFT1jFloXMUS4ZJCSVsTa50FkvomWOWMUYdY85aSp1j1jFFHWNSUkmhcxg6ZiVkFDpGxehifDA6laJCKL7H3lLpLYWKW4q91xpT6y2EGEtpwQhhc+211dxKasUYY4wxxsXiUyiC0JBVAAABAABABAFCQ1YBAAoAAMJQDEVRgNCQVQBABgCAABRFcRTHcRxHkiTLAkJDVgEAQAAAAgAAKI7hKJIjSZJkWZZlWZameZaouaov+64u667t6roOhIasBACAAAAYRqF1TCqDEEPKQ4QUY9AzoxBDDEzGHGNONKQMMogzxZAyiFssLqgQBKEhKwKAKAAAwBjEGGIMOeekZFIi55iUTkoDnaPUUcoolRRLjBmlEluJMYLOUeooZZRCjKXFjFKJscRUAABAgAMAQICFUGjIigAgCgCAMAYphZRCjCnmFHOIMeUcgwwxxiBkzinoGJNOSuWck85JiRhjzjEHlXNOSuekctBJyaQTAAAQ4AAAEGAhFBqyIgCIEwAwSJKmWZomipamiaJniqrqiaKqWp5nmp5pqqpnmqpqqqrrmqrqypbnmaZnmqrqmaaqiqbquqaquq6nqrZsuqoum65q267s+rZru77uqapsm6or66bqyrrqyrbuurbtS56nqqKquq5nqq6ruq5uq65r25pqyq6purJtuq4tu7Js664s67pmqq5suqotm64s667s2rYqy7ovuq5uq7Ks+6os+75s67ru2rrwi65r66os674qy74x27bwy7ouHJMnqqqnqq7rmarrqq5r26rr2rqmmq5suq4tm6or26os67Yry7aumaosm64r26bryrIqy77vyrJui67r66Ys67oqy8Lu6roxzLat+6Lr6roqy7qvyrKuu7ru+7JuC7umqrpuyrKvm7Ks+7auC8us27oxuq7vq7It/KosC7+u+8Iy6z5jdF1fV21ZGFbZ9n3d95Vj1nVhWW1b+V1bZ7y+bgy7bvzKrQvLstq2scy6rSyvrxvDLux8W/iVmqratum6um7Ksq/Lui60dd1XRtf1fdW2fV+VZd+3hV9pG8OwjK6r+6os68Jry8ov67qw7MIvLKttK7+r68ow27qw3L6wLL/uC8uq277v6rrStXVluX2fsSu38QsAABhwAAAIMKEMFBqyIgCIEwBAEHIOKQahYgpCCKGkEEIqFWNSMuakZM5JKaWUFEpJrWJMSuaclMwxKaGUlkopqYRSWiqlxBRKaS2l1mJKqcVQSmulpNZKSa2llGJMrcUYMSYlc05K5pyUklJrJZXWMucoZQ5K6iCklEoqraTUYuacpA46Kx2E1EoqMZWUYgupxFZKaq2kFGMrMdXUWo4hpRhLSrGVlFptMdXWWqs1YkxK5pyUzDkqJaXWSiqtZc5J6iC01DkoqaTUYiopxco5SR2ElDLIqJSUWiupxBJSia20FGMpqcXUYq4pxRZDSS2WlFosqcTWYoy1tVRTJ6XFklKMJZUYW6y5ttZqDKXEVkqLsaSUW2sx1xZjjqGkFksrsZWUWmy15dhayzW1VGNKrdYWY40x5ZRrrT2n1mJNMdXaWqy51ZZbzLXnTkprpZQWS0oxttZijTHmHEppraQUWykpxtZara3FXEMpsZXSWiypxNhirLXFVmNqrcYWW62ltVprrb3GVlsurdXcYqw9tZRrrLXmWFNtBQAADDgAAASYUAYKDVkJAEQBAADGMMYYhEYpx5yT0ijlnHNSKucghJBS5hyEEFLKnINQSkuZcxBKSSmUklJqrYVSUmqttQIAAAocAAACbNCUWByg0JCVAEAqAIDBcTRNFFXVdX1fsSxRVFXXlW3jVyxNFFVVdm1b+DVRVFXXtW3bFn5NFFVVdmXZtoWiqrqybduybgvDqKqua9uybeuorqvbuq3bui9UXVmWbVu3dR3XtnXd9nVd+Bmzbeu2buu+8CMMR9/4IeTj+3RCCAAAT3AAACqwYXWEk6KxwEJDVgIAGQAAgDFKGYUYM0gxphhjTDHGmAAAgAEHAIAAE8pAoSErAoAoAADAOeecc84555xzzjnnnHPOOeecc44xxhhjjDHGGGOMMcYYY4wxxhhjjDHGGGOMMcYYY0wAwE6EA8BOhIVQaMhKACAcAABACCEpKaWUUkoRU85BSSmllFKqFIOMSkoppZRSpBR1lFJKKaWUIqWgpJJSSimllElJKaWUUkoppYw6SimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaVUSimllFJKKaWUUkoppRQAYPLgAACVYOMMK0lnhaPBhYasBAByAwAAhRiDEEJpraRUUkolVc5BKCWUlEpKKZWUUqqYgxBKKqmlklJKKbXSQSihlFBKKSWUUkooJYQQSgmhlFRCK6mEUkoHoYQSQimhhFRKKSWUzkEoIYUOQkmllNRCSB10VFIpIZVSSiklpZQ6CKGUklJLLZVSWkqpdBJSKamV1FJqqbWSUgmhpFZKSSWl0lpJJbUSSkklpZRSSymFVFJJJYSSUioltZZaSqm11lJIqZWUUkqppdRSSiWlkEpKqZSSUmollZRSaiGVlEpJKaTUSimlpFRCSamlUlpKLbWUSkmptFRSSaWUlEpJKaVSSksppRJKSqmllFpJKYWSUkoplZJSSyW1VEoKJaWUUkmptJRSSymVklIBAEAHDgAAAUZUWoidZlx5BI4oZJiAAgAAQABAgAkgMEBQMApBgDACAQAAAADAAAAfAABHARAR0ZzBAUKCwgJDg8MDAAAAAAAAAAAAAACAT2dnUwAEAAAAAAAAAADqnjMlAgAAADzQPmcBAQA=");
|
||||
if (mpeg) canPlayThrough("audio/mpeg;base64,/+MYxAAAAANIAUAAAASEEB/jwOFM/0MM/90b/+RhST//w4NFwOjf///PZu////9lns5GFDv//l9GlUIEEIAAAgIg8Ir/JGq3/+MYxDsLIj5QMYcoAP0dv9HIjUcH//yYSg+CIbkGP//8w0bLVjUP///3Z0x5QCAv/yLjwtGKTEFNRTMuOTeqqqqqqqqqqqqq/+MYxEkNmdJkUYc4AKqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq");
|
||||
// lets find out!
|
||||
var time = (new Date()).getTime();
|
||||
var interval = window.setInterval(function() {
|
||||
for (var key in supports) {}
|
||||
var now = (new Date()).getTime();
|
||||
var maxExecution = now - time > 5000;
|
||||
if (key || maxExecution) {
|
||||
window.clearInterval(interval);
|
||||
callback(supports);
|
||||
}
|
||||
}, 1);
|
||||
};
|
||||
|
||||
})();
|
||||
95
js/MIDI/loadPlugin.js
Normal file
95
js/MIDI/loadPlugin.js
Normal file
|
|
@ -0,0 +1,95 @@
|
|||
/*
|
||||
|
||||
MIDI.loadPlugin(callback, type);
|
||||
-------------------------------------
|
||||
https://github.com/mudx/MIDI.js
|
||||
-------------------------------------
|
||||
|
||||
*/
|
||||
|
||||
if (typeof (MIDI) === "undefined") var MIDI = {};
|
||||
if (typeof (MIDI.Soundfont) === "undefined") MIDI.Soundfont = {};
|
||||
|
||||
(function() { "use strict";
|
||||
|
||||
var plugins = { "#webaudio": true, "#html5": true, "#java": true, "#flash": true };
|
||||
|
||||
MIDI.loadPlugin = function(callback, instrument) {
|
||||
var type = "";
|
||||
var instrument = instrument || "";
|
||||
MIDI.audioDetect(function(types) {
|
||||
// use the most appropriate plugin if not specified
|
||||
if (typeof(type) === 'undefined') {
|
||||
if (plugins[window.location.hash]) {
|
||||
type = window.location.hash;
|
||||
} else {
|
||||
type = "";
|
||||
}
|
||||
}
|
||||
if (type === "") {
|
||||
if (window.webkitAudioContext) { // Chrome
|
||||
type = "#webaudio";
|
||||
} else if (window.Audio) { // Firefox
|
||||
type = "#html5";
|
||||
} else { // Internet Explorer
|
||||
type = "#flash";
|
||||
}
|
||||
}
|
||||
if (typeof(loader) === "undefined") var loader;
|
||||
// use audio/ogg when supported
|
||||
var filetype = types["audio/ogg"] ? "ogg" : "mp3";
|
||||
// load the specified plugin
|
||||
switch (type) {
|
||||
case "#java":
|
||||
// works well cross-browser, and highly featured, but required Java machine to startup
|
||||
if (loader) loader.message("Soundfont (500KB)<br>Java Interface...");
|
||||
MIDI.Java.connect(callback);
|
||||
break;
|
||||
case "#flash":
|
||||
// fairly quick, but requires loading of individual MP3s
|
||||
if (loader) loader.message("Soundfont (2MB)<br>Flash Interface...");
|
||||
DOMLoader.script.add({
|
||||
src: "./inc/SoundManager2/script/soundmanager2.js",
|
||||
verify: "SoundManager",
|
||||
callback: function () {
|
||||
MIDI.Flash.connect(callback);
|
||||
}
|
||||
});
|
||||
break;
|
||||
case "#html5":
|
||||
// works well in Firefox
|
||||
DOMLoader.sendRequest({
|
||||
url: "./soundfont/soundfont-" + filetype + instrument + ".js",
|
||||
callback: function (response) {
|
||||
MIDI.Soundfont = JSON.parse(response.responseText);
|
||||
if (loader) loader.message("Downloading: 100%<br>Processing...");
|
||||
MIDI.HTML5.connect(callback);
|
||||
},
|
||||
progress: function (evt) {
|
||||
var percent = evt.loaded / 1719931 * 100 >> 0;
|
||||
if (loader) loader.message("Downloading: " + (percent + "%"));
|
||||
}
|
||||
});
|
||||
break;
|
||||
case "#webaudio":
|
||||
// works well in Chrome
|
||||
DOMLoader.sendRequest({
|
||||
url: "./soundfont/soundfont-" + filetype + instrument + ".js",
|
||||
callback: function(response) {
|
||||
MIDI.Soundfont = JSON.parse(response.responseText);
|
||||
if (loader) loader.message("Downloading: 100%<br>Processing...");
|
||||
MIDI.WebAudioAPI.connect(callback);
|
||||
},
|
||||
progress: function (evt) {
|
||||
var percent = evt.loaded / 1719931 * 100 >> 0;
|
||||
if (loader) loader.message("Downloading: " + (percent + "%"));
|
||||
}
|
||||
});
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
});
|
||||
};
|
||||
|
||||
})();
|
||||
Loading…
Add table
Add a link
Reference in a new issue