From 930090f8d35da7b8dcb7771e950b7f87ec576245 Mon Sep 17 00:00:00 2001 From: Martin von Gagern Date: Mon, 1 Aug 2016 15:12:33 +0200 Subject: [PATCH] Support playtone via MIDI.js The MIDI.js verison here is one which integrates three of my PRs: https://github.com/mudcube/MIDI.js/pull/187 (percussion) https://github.com/mudcube/MIDI.js/pull/189 (MIDI.now) https://github.com/mudcube/MIDI.js/pull/190 (WebMIDI detection) The playtone function automatically triggers loading of the plugin. The corresponding soundfont is loaded only when needed, which means there will be some time between when the function calls start and when sound becomes actually audible. Samples are hosted on http://cindyjs.org/soundfont/ which might break widgets delivered through HTTPS. We need a certificate for cindyjs.org to solve this problem, or allow configuring the soundfont through some API, e.g. some CindyScript function. The example is essentially taken from a Cinderella export, except for the deletion of a duplicate play button. --- examples/sound/EuklidRhythm4a.html | 392 ++++++ lib/midi/Base64binary.js | 81 ++ lib/midi/MIDI.js | 1785 ++++++++++++++++++++++++++++ make/build.js | 21 + plugins/midi/src/js/midi-plugin.js | 128 ++ src/js/Head.js | 7 +- src/js/Setup.js | 3 + 7 files changed, 2416 insertions(+), 1 deletion(-) create mode 100644 examples/sound/EuklidRhythm4a.html create mode 100644 lib/midi/Base64binary.js create mode 100644 lib/midi/MIDI.js create mode 100644 plugins/midi/src/js/midi-plugin.js diff --git a/examples/sound/EuklidRhythm4a.html b/examples/sound/EuklidRhythm4a.html new file mode 100644 index 000000000..b9b8d3d3b --- /dev/null +++ b/examples/sound/EuklidRhythm4a.html @@ -0,0 +1,392 @@ + + + + + EuklidRhythm4.cdy + + + + + + + + + + + + + + +
+ + diff --git a/lib/midi/Base64binary.js b/lib/midi/Base64binary.js new file mode 100644 index 000000000..2c59f8ffb --- /dev/null +++ b/lib/midi/Base64binary.js @@ -0,0 +1,81 @@ +/** + * @license ------------------------------------------------------------------- + * module: Base64Binary + * src: http://blog.danguer.com/2011/10/24/base64-binary-decoding-in-javascript/ + * license: Simplified BSD License + * ------------------------------------------------------------------- + * Copyright 2011, Daniel Guerrero. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL DANIEL GUERRERO BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +var Base64Binary = { + _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=", + + /* will return a Uint8Array type */ + decodeArrayBuffer: function(input) { + var bytes = Math.ceil( (3*input.length) / 4.0); + var ab = new ArrayBuffer(bytes); + this.decode(input, ab); + + return ab; + }, + + decode: function(input, arrayBuffer) { + //get last chars to see if are valid + var lkey1 = this._keyStr.indexOf(input.charAt(input.length-1)); + var lkey2 = this._keyStr.indexOf(input.charAt(input.length-1)); + + var bytes = Math.ceil( (3*input.length) / 4.0); + if (lkey1 == 64) bytes--; //padding chars, so skip + if (lkey2 == 64) bytes--; //padding chars, so skip + + var uarray; + var chr1, chr2, chr3; + var enc1, enc2, enc3, enc4; + var i = 0; + var j = 0; + + if (arrayBuffer) + uarray = new Uint8Array(arrayBuffer); + else + uarray = new Uint8Array(bytes); + + input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); + + for (i=0; i> 4); + chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); + chr3 = ((enc3 & 3) << 6) | enc4; + + uarray[i] = chr1; + if (enc3 != 64) uarray[i+1] = chr2; + if (enc4 != 64) uarray[i+2] = chr3; + } + + return uarray; + } +}; \ No newline at end of file diff --git a/lib/midi/MIDI.js b/lib/midi/MIDI.js new file mode 100644 index 000000000..634722e16 --- /dev/null +++ b/lib/midi/MIDI.js @@ -0,0 +1,1785 @@ +/* + ---------------------------------------------------------- + MIDI.audioDetect : 0.3.2 : 2015-03-26 + ---------------------------------------------------------- + https://github.com/mudcube/MIDI.js + ---------------------------------------------------------- + Probably, Maybe, No... Absolutely! + Test to see what types of