PNG  IHDR;IDATxܻn0K )(pA 7LeG{ §㻢|ذaÆ 6lذaÆ 6lذaÆ 6lom$^yذag5bÆ 6lذaÆ 6lذa{ 6lذaÆ `}HFkm,mӪôô! x|'ܢ˟;E:9&ᶒ}{v]n&6 h_tڠ͵-ҫZ;Z$.Pkž)!o>}leQfJTu іچ\X=8Rن4`Vwl>nG^is"ms$ui?wbs[m6K4O.4%/bC%t Mז -lG6mrz2s%9s@-k9=)kB5\+͂Zsٲ Rn~GRC wIcIn7jJhۛNCS|j08yiHKֶۛkɈ+;SzL/F*\Ԕ#"5m2[S=gnaPeғL lذaÆ 6l^ḵaÆ 6lذaÆ 6lذa; _ذaÆ 6lذaÆ 6lذaÆ RIENDB` /* ---------------------------------------------------------------------- Web MIDI API - Native Soundbanks ---------------------------------------------------------------------- http://webaudio.github.io/web-midi-api/ ---------------------------------------------------------------------- */ (function(root) { 'use strict'; var plugin = null; var output = null; var channels = []; var midi = root.WebMIDI = {api: 'webmidi'}; midi.send = function(data, delay) { // set channel volume output.send(data, delay * 1000); }; midi.setController = function(channel, type, value, delay) { output.send([channel, type, value], delay * 1000); }; midi.setVolume = function(channel, volume, delay) { // set channel volume output.send([0xB0 + channel, 0x07, volume], delay * 1000); }; midi.programChange = function(channel, program, delay) { // change patch (instrument) output.send([0xC0 + channel, program], delay * 1000); }; midi.pitchBend = function(channel, program, delay) { // pitch bend output.send([0xE0 + channel, program], delay * 1000); }; 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, 0], 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, 0], delay * 1000); } }; midi.stopAllNotes = function() { output.cancel(); for (var channel = 0; channel < 16; channel ++) { output.send([0xB0 + channel, 0x7B, 0]); } }; midi.connect = function(opts) { root.setDefaultPlugin(midi); var errFunction = function(err) { // well at least we tried! if (window.AudioContext) { // Chrome opts.api = 'webaudio'; } else if (window.Audio) { // Firefox opts.api = 'audiotag'; } else { // no support return; } root.loadPlugin(opts); }; /// navigator.requestMIDIAccess().then(function(access) { plugin = access; var pluginOutputs = plugin.outputs; if (typeof pluginOutputs == 'function') { // Chrome pre-43 output = pluginOutputs()[0]; } else { // Chrome post-43 output = pluginOutputs[0]; } if (output === undefined) { // nothing there... errFunction(); } else { opts.onsuccess && opts.onsuccess(); } }, errFunction); }; })(MIDI);