-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathmidiplayer.html
134 lines (121 loc) · 3.52 KB
/
midiplayer.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
<!DOCTYPE html>
<html>
<!--
csound.js MIDI file player example
Copyright (C) 2013 V Lazzarini
-->
<head>
<title>WebAudio Csound</title>
<style type="text/css">
html, body {
font-family: Monospace;
color: #bf94f7;
background-color: #000055;
}
#console {
font-family: Monospace;
color: #b5b6ff;
background-color: #000000;
font-size: 16px;
width: 805px;
display: flex;
align-items: center;
justify-content: center;
border-style: solid;
padding: 20px 0px;
}
#filebut {
padding: 20px 0px;
}
input[type=file] {
font-family: Monospace;
font-size: 24px;
background-color: #b5b6ff;
color: #000000;
}
H1 {
font-size: 36px;
}
button {
margin: auto;
font-family: Monospace;
width: 805px;
padding: 10px 0px;
font-size: 24px;
background-color: #b5b6ff;
}
</style>
<script type="text/javascript" src="csound.js"></script>
<script type="text/javascript">
// called by csound.js
function moduleDidLoad() {
csound.CopyUrlToLocal("sf_GMbank.sf2", "sf_GMbank.sf2", function() {
fcopied = true;
console.log("Ready to load a MIDI file.\n");
});
}
function attachListeners() {
document.getElementById('playButton').
addEventListener('click', togglePlay);
document.getElementById('files').
addEventListener('change', handleFileSelect, false);
}
var fcopied = false;
var count = 0;
function handleMessage(message) {
var element = document.getElementById('console');
element.value += message;
count += 1;
if (count == 1000) {
element.value = ' ';
count = 0;
}
}
var playing = false;
var started = false;
var loaded = false;
function togglePlay() {
if (loaded && fcopied) {
if (!playing) {
if (started) csound.Play();
else {
CsoundObj.CSOUND_AUDIO_CONTEXT.resume();
csound.PlayCsd("gm.csd");
started = true;
}
document.getElementById('playButton').innerText = "Pause";
playing = true;
} else {
csound.Pause()
document.getElementById('playButton').innerText = "Play";
playing = false;
}
}
}
function handleFileSelect(evt) {
if (!loaded) {
var files = evt.target.files;
var f = files[0];
var objectURL = window.URL.createObjectURL(f);
csound.CopyUrlToLocal(objectURL, "midifile.mid", function() {
loaded = true;
console.log("Ready to play. \n");
});
} else {
csound.UpdateStatus("to load a new file, first refresh page!")
}
}
</script>
</head>
<body>
<H1> MIDI File Player </H1>
<div id="filebut">
<input type="file" id="files" name="file" />
</div>
<textarea class="console" cols="65" rows="20" id="console">
Csound: not loaded</textarea>
<p>
<button id="playButton">Play</button>
</p>
</body>
</html>