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fh2_launchpad.html
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fh2_launchpad.html
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<!DOCTYPE html>
<head>
<title>FH-2 Launchpad Tool</title>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=PT+Sans">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=PT+Mono">
<style>
body {
}
button {
}
select {
}
tr.a {
background-color: #e0e0e0;
}
th {
background-color: #c0c0c0;
font-size: 80%;
}
td.tc {
text-align: center;
background-color: #c0c0c0;
font-size: 80%;
}
td.tc_a {
text-align: center;
background-color: #e0e0e0;
font-size: 80%;
}
input {
}
textarea {
font-family: 'PT Mono', monospace;
font-size: 11px;
}
body {
font-family: 'PT Sans', serif;
font-size: 16px;
}
button.big {
font-size: 120%;
}
input, select, button {
font-family: 'PT Sans', serif;
font-size: 11px;
}
div.small {
font-size: 80%;
}
table {
margin-bottom: 5px;
}
div.tc_c {
font-size: 80%;
}
table.logs {
margin: 0px;
border-spacing: 0px;
}
td.logs {
padding: 0px;
}
label.logs {
font-size: 80%;
}
.hidden {
position:absolute;
left:-10000px;
top:auto;
width:1px;
height:1px;
overflow:hidden;
}
p {
margin-block-start: 0em;
margin-block-end: 0em;
}
button.pad {
width:50px;
height:50px;
}
</style>
<script>
function changeTheme() {
let stylesheet = document.styleSheets[2];
if ( document.getElementById( "theme" ).value == 0 ) {
// body
stylesheet.cssRules[0].style.setProperty('background-color', 'white');
stylesheet.cssRules[0].style.setProperty('color', 'black');
// button
stylesheet.cssRules[1].style.setProperty('background-color', '#efefef');
stylesheet.cssRules[1].style.setProperty('color', 'black');
// select
stylesheet.cssRules[2].style.setProperty('background-color', 'white');
stylesheet.cssRules[2].style.setProperty('color', 'black');
// tr.a
stylesheet.cssRules[3].style.setProperty('background-color', '#e0e0e0');
// th
stylesheet.cssRules[4].style.setProperty('background-color', '#c0c0c0');
// td.tc
stylesheet.cssRules[5].style.setProperty('background-color', '#c0c0c0');
// td.tc_a
stylesheet.cssRules[6].style.setProperty('background-color', '#e0e0e0');
// input
stylesheet.cssRules[7].style.setProperty('background-color', 'white');
stylesheet.cssRules[7].style.setProperty('color', 'black');
// textarea
stylesheet.cssRules[8].style.setProperty('background-color', 'white');
stylesheet.cssRules[8].style.setProperty('color', 'black');
} else {
// body
stylesheet.cssRules[0].style.setProperty('background-color', 'black');
stylesheet.cssRules[0].style.setProperty('color', '#c0c0c0');
// button
stylesheet.cssRules[1].style.setProperty('background-color', 'black');
stylesheet.cssRules[1].style.setProperty('color', '#c0c0c0');
// select
stylesheet.cssRules[2].style.setProperty('background-color', 'black');
stylesheet.cssRules[2].style.setProperty('color', '#c0c0c0');
// tr.a
stylesheet.cssRules[3].style.setProperty('background-color', '#505050');
// th
stylesheet.cssRules[4].style.setProperty('background-color', '#505050');
// td.tc
stylesheet.cssRules[5].style.setProperty('background-color', '#505050');
// td.tc_a
stylesheet.cssRules[6].style.setProperty('background-color', '#606060');
// input
stylesheet.cssRules[7].style.setProperty('background-color', 'black');
stylesheet.cssRules[7].style.setProperty('color', '#c0c0c0');
// textarea
stylesheet.cssRules[8].style.setProperty('background-color', 'black');
stylesheet.cssRules[8].style.setProperty('color', '#c0c0c0');
}
localStorage.setItem( themeKey, document.getElementById( "theme" ).value );
}
function log( t ) {
var ta = document.getElementById( "log" );
var d = new Date();
var dd = d.toLocaleTimeString();
ta.value = ta.value + "\n" + dd + ": " + t;
ta.scrollTop = ta.scrollHeight;
return dd;
}
function status( t ) {
document.getElementById( "status" ).innerHTML = "Web MIDI status: " + t;
}
function nybbleChar( n ) {
if ( n >= 10 ) {
return String.fromCharCode( 'A'.charCodeAt( 0 ) + n - 10 );
}
return String.fromCharCode( '0'.charCodeAt( 0 ) + n );
}
function makeMsgSysEx() {
var d = [0xF0, 0x00, 0x21, 0x27, 0x2F, 0x02]
var len = d.length
var str = ""
for ( var i = 0; i < len; ++i ) {
str += String.fromCharCode( d[i] );
}
var text = "Hello!\nThis message\nwas sent from\nthe config tool.";
str += text;
str += String.fromCharCode( 0xF7 );
return str;
}
function dumpSysex( data, id, prefix ) {
var len = data.length
var h = prefix
for ( var i = 0; i < len; ++i ) {
var b = data[ i ];
h += nybbleChar( b >> 4 );
h += nybbleChar( b & 0xf );
h += " ";
if ( ( i & 0xf ) === 0xf ) {
h += "\n";
}
}
document.getElementById( id ).value = h;
}
</script>
</head>
<body>
<div class="small">
At the time of writing this will work only in Google's <a href="http://www.google.com/chrome/">Chrome</a> browser or in the <a href="https://www.opera.com">Opera</a> browser. Chrome may block SysEx access if you run this from a website, in which case download the html file locally and run it from there.
</div>
<div class="small" id="status"></div>
<div class="small">
This version is for FH-2 firmware v1.21 and above.
<label for="theme">Theme: </label><select id="theme" onchange="changeTheme()"><option value=0>Light</option><option value=1>Dark</option></select>
</div>
<p>
<label for="midioutput">Send to MIDI output port: </label><select id="midioutput" onchange="changeOutput()" accesskey='o'></select>
<button onclick="sendMsg()">Send Msg</button>
<br>
<label for="midiinput">Listen on MIDI input port: </label><select id="midiinput" onchange='changeInput()' accesskey='i'></select>
<button onclick="reqVersion()" accesskey='v'>Request FH-2 Version</button>
<p>
<textarea rows=5 cols=50 id="log" class="log" readOnly title="Log" accesskey='l'></textarea>
<textarea rows=5 cols=48 name="text" id="txSysex" title="Transmitted SysEx"></textarea>
<textarea rows=5 cols=48 name="text" id="rxSysex" title="Received SysEx"></textarea>
<p>
<script>
// https://www.reddit.com/r/Novation/comments/vgitm0/reverse_engineering_launchpad_pro_color_to/
const colours = [
[ 0,0,0 ],
[ 64,64,64 ],//[ 37,37,37 ],
[ 143,143,143 ],
[ 253,253,253 ],
[ 255,101,92 ],
[ 255,40,18 ],
[ 110,10,3 ],
[ 34,1,0 ],
[ 255,199,124 ],
[ 255,108,29 ],
[ 110,40,6 ],
[ 48,31,2 ],
[ 255,248,77 ],
[ 255,248,63 ],
[ 108,105,21 ],
[ 32,31,2 ],
[ 148,247,81 ],
[ 83,246,60 ],
[ 30,104,20 ],
[ 25,51,6 ],
[ 69,247,81 ],
[ 9,246,59 ],
[ 2,104,19 ],
[ 0,30,2 ],
[ 67,247,104 ],
[ 9,246,59 ],
[ 2,104,19 ],
[ 0,30,2 ],
[ 64,248,151 ],
[ 4,247,93 ],
[ 1,104,34 ],
[ 0,36,19 ],
[ 57,248,193 ],
[ 0,247,167 ],
[ 0,105,67 ],
[ 0,31,19 ],
[ 63,204,252 ],
[ 0,184,252 ],
[ 0,82,99 ],
[ 0,20,31 ],
[ 73,158,251 ],
[ 0,112,250 ],
[ 0,41,107 ],
[ 0,7,32 ],
[ 79,105,250 ],
[ 0,60,249 ],
[ 0,20,108 ],
[ 0,2,32 ],
[ 146,106,250 ],
[ 91,61,249 ],
[ 23,24,119 ],
[ 8,8,64 ],
[ 255,112,250 ],
[ 255,71,250 ],
[ 109,25,107 ],
[ 33,3,32 ],
[ 255,105,149 ],
[ 255,44,101 ],
[ 110,13,36 ],
[ 44,2,19 ],
[ 255,51,19 ],
[ 173,71,16 ],
[ 142,99,21 ],
[ 80,116,23 ],
[ 1,70,10 ],
[ 0,101,67 ],
[ 0,103,143 ],
[ 0,60,249 ],
[ 0,85,95 ],
[ 10,50,214 ],
[ 143,143,143 ],
[ 43,43,43 ],
[ 255,40,18 ],
[ 200,247,62 ],
[ 186,235,58 ],
[ 107,247,60 ],
[ 3,149,32 ],
[ 0,247,148 ],
[ 0,184,252 ],
[ 0,70,249 ],
[ 56,61,249 ],
[ 134,63,249 ],
[ 194,52,142 ],
[ 83,43,5 ],
[ 255,97,26 ],
[ 151,225,55 ],
[ 122,247,60 ],
[ 9,246,59 ],
[ 9,246,59 ],
[ 87,247,127 ],
[ 0,249,213 ],
[ 92,158,251 ],
[ 40,104,207 ],
[ 145,147,237 ],
[ 218,70,250 ],
[ 255,45,108 ],
[ 255,144,37 ],
[ 199,187,45 ],
[ 158,247,61 ],
[ 150,111,24 ],
[ 74,52,6 ],
[ 16,92,19 ],
[ 0,97,72 ],
[ 23,26,53 ],
[ 13,47,107 ],
[ 126,77,35 ],
[ 188,25,10 ],
[ 233,103,73 ],
[ 229,125,31 ],
[ 255,227,58 ],
[ 171,225,55 ],
[ 116,189,44 ],
[ 35,38,63 ],
[ 229,249,117 ],
[ 136,249,199 ],
[ 164,173,252 ],
[ 154,128,250 ],
[ 81,81,81 ],
[ 135,135,135 ],
[ 228,252,253 ],
[ 181,24,9 ],
[ 69,3,1 ],
[ 6,211,50 ],
[ 1,79,12 ],
[ 199,187,45 ],
[ 79,62,9 ],
[ 195,112,26 ],
[ 93,28,3 ],
];
function pad( id, dn ) {
let ccs = id.split( "p" );
for ( let cc of ccs.slice(1) ) {
let output = midi.outputs.get( document.getElementById( "midioutput" ).value );
let arr = [ 0xF0, 0x00, 0x21, 0x27, 0x2F, 0x4C, cc, dn ? 127 : 0, 0xF7 ];
output.send( arr );
let dd = log( "sent pad " + cc + "," + dn + " to FH-2" );
dumpSysex( arr, "txSysex", dd+"\n" );
}
}
function parsePad( data ) {
for ( let i = 0; i < data.length; i += 2 ) {
let cc = data[i];
let c = colours[ data[i+1] ];
let rgb = "rgb("+c[0]+","+c[1]+","+c[2]+")";
let tot = c[0] + c[1] + c[2];
let text = tot > 200 ? "black" : "white";
document.getElementById( "p" + cc ).style = "background-color:"+rgb+";color:"+text;
}
}
function write_pad( ccs ) {
let id = "";
for ( let cc of ccs ) {
id += "p" + cc;
}
document.write( "<td><button id=" + id + " class='pad' onmousedown=pad('" + id + "',1) onmouseup=pad('" + id + "',0)>" );
document.write( ccs.join( " " ) );
document.write( "</button></td>" );
return id;
}
</script>
<table>
<tr>
<td colspan=6></td>
<script>
id = write_pad( [ 97, 98 ] );
document.getElementById( id ).innerHTML += "\na";
</script>
</tr>
<script>
for ( let y=9; y>=1; --y ) {
document.write( "<tr>" );
for ( let x=1; x<=9; ++x ) {
let cc = y * 10 + x;
if ( cc == 99 ) {
continue;
}
write_pad( [ cc ] );
}
document.write( "</tr>" );
}
document.onkeydown = function(e) {
if ( e.which == 65 ) {
pad( "p97p98", 1 );
}
}
document.onkeyup = function(e) {
if ( e.which == 65 ) {
pad( "p97p98", 0 );
}
}
</script>
</table>
<script>
var midi, data;
function onMIDISuccess(midiAccess) {
log( "midi access granted" );
status("OK");
midi = midiAccess;
midi.onstatechange = onStateChange;
onStateChange(null);
}
function onStateChange(e) {
var str = "";
var fh2 = -1;
var inputs = midi.inputs.values();
for ( var input = inputs.next(); input && !input.done; input = inputs.next() ) {
str += "<option value='" + input.value.id + "'>" + input.value.name + "</option>";
if ( input.value.name == fh2InPortName ) {
fh2 = input.value.id;
}
}
document.getElementById( "midiinput" ).innerHTML = str
if ( fh2 != -1 ) {
document.getElementById( "midiinput" ).value = fh2;
}
str = "";
fh2 = -1;
var outputs = midi.outputs.values();
for ( var output = outputs.next(); output && !output.done; output = outputs.next() ) {
str += "<option value='" + output.value.id + "'>" + output.value.name + "</option>";
if ( output.value.name == fh2OutPortName ) {
fh2 = output.value.id;
midi.outputs.get( output.value.id ).send( [ 0xFE ] );
}
}
document.getElementById( "midioutput" ).innerHTML = str
if ( fh2 != -1 ) {
document.getElementById( "midioutput" ).value = fh2;
}
setup_onmidimessage();
}
function onMIDIFailure(e) {
log( "midi access failure" );
status("No access to MIDI devices or your browser doesn't support WebMIDI API.");
}
function setup_onmidimessage() {
var inputs = midi.inputs.values();
if ( inputs.size == 0 ) {
return;
}
for ( var input = inputs.next(); input && !input.done; input = inputs.next() ) {
input.value.onmidimessage = "";
}
var input = midi.inputs.get( document.getElementById( "midiinput" ).value );
input.onmidimessage = onMIDIMessage;
}
function changeInput() {
setup_onmidimessage();
// Save the current port settings
let inputSelector = document.getElementById("midiinput");
let selectedPortName = inputSelector.options[inputSelector.selectedIndex].text;
localStorage.setItem(fh2MIDIInKey, selectedPortName);
}
function changeOutput() {
var outputSelector = document.getElementById("midioutput");
var selectedPortName = outputSelector.options[outputSelector.selectedIndex].text;
localStorage.setItem(fh2MIDIOutKey, selectedPortName);
}
function onMIDIMessage(message) {
data = message.data;
var header = [ 240, 0, 33, 39, 47 ];
for ( var i=0; i<5; ++i ) {
if ( header[i] != data[i] ) {
return;
}
}
// let dd = log( "received sysex (" + data.length + " bytes)" );
// dumpSysex( data, "rxSysex", dd+"\n" );
if ( data[5] == 0x32 ) {
// version string
var str = String.fromCharCode.apply( null, data.slice( 6, -1 ) );
document.getElementById( "rxSysex" ).value += ( "\n-----\n" + str );
}
else if ( data[5] == 0x4C ) {
// pad
parsePad( data.slice( 6, -1 ) );
}
}
function sendMsg() {
var str = makeMsgSysEx();
var arr = new Uint8Array( str.length );
for ( var i=0; i<str.length; ++i ) {
arr[i] = str.charCodeAt( i );
}
var output = midi.outputs.get( document.getElementById( "midioutput" ).value );
output.send( arr );
var dd = log( "sent sysex (" + str.length + " bytes)" );
dumpSysex( arr, "txSysex", dd+"\n" );
}
function reqVersion() {
let output = midi.outputs.get( document.getElementById( "midioutput" ).value );
let arr = [ 0xF0, 0x00, 0x21, 0x27, 0x2F, 0x22, 0xF7 ];
output.send( arr );
let dd = log( "sent version request to FH-2" );
dumpSysex( arr, "txSysex", dd+"\n" );
}
const fh2MIDIInKey = "fh2MIDIInKey";
const fh2MIDIOutKey = "fh2MIDIOutKey";
const defaultFH2PortName = "FH-2";
var fh2InPortName = defaultFH2PortName;
var fh2OutPortName = defaultFH2PortName;
if(!localStorage.getItem(fh2MIDIInKey)) { // No input stored
localStorage.setItem(fh2MIDIInKey, defaultFH2PortName);
}
else {
fh2InPortName = localStorage.getItem(fh2MIDIInKey);
}
if(!localStorage.getItem(fh2MIDIOutKey)) { // No output stored
localStorage.setItem(fh2MIDIOutKey, defaultFH2PortName);
}
else {
fh2OutPortName = localStorage.getItem(fh2MIDIOutKey);
}
const themeKey = 'fh2Theme';
if ( localStorage.getItem( themeKey ) ) {
if ( localStorage.getItem( themeKey ) == 1 ) {
document.getElementById( "theme" ).value = 1;
changeTheme();
}
}
if ( navigator.requestMIDIAccess ) {
navigator.requestMIDIAccess ( {
sysex: true
} ).then(onMIDISuccess, onMIDIFailure);
} else {
status("No MIDI support in your browser.");
}
</script>
</body>