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safari compatible

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This commit is contained in:
Andy Sloane 2015-10-26 13:04:37 -07:00
commit 8e6b6e7a90
1 changed files with 15 additions and 3 deletions
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18
xm.js
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@ -1,6 +1,8 @@
var _note_names = ["C-", "C#", "D-", "D#", "E-", "F-", "F#", "G-", "G#", "A-", "A#", "B-"]; var _note_names = ["C-", "C#", "D-", "D#", "E-", "F-", "F#", "G-", "G#", "A-", "A#", "B-"];
var f_smp = 44100; // updated by play callback, default value here var f_smp = 44100; // updated by play callback, default value here
audioContext = window.AudioContext || window.webkitAudioContext;
function prettify_note(note) { function prettify_note(note) {
if (note < 0) return "---"; if (note < 0) return "---";
if (note == 96) return "^^^"; if (note == 96) return "^^^";
@ -264,8 +266,18 @@ function audio_cb(e) {
var buflen = e.outputBuffer.length; var buflen = e.outputBuffer.length;
var dataL = e.outputBuffer.getChannelData(0); var dataL = e.outputBuffer.getChannelData(0);
var dataR = e.outputBuffer.getChannelData(1); var dataR = e.outputBuffer.getChannelData(1);
dataL.fill(0);
dataR.fill(0); // backward compat w/ no array.fill
if (dataL.fill === undefined) {
for (var i = 0; i < buflen; i++) {
dataL[i] = 0;
dataR[i] = 0;
}
} else {
dataL.fill(0);
dataR.fill(0);
}
var offset = 0; var offset = 0;
var ticklen = 0|(f_smp * 2.5 / bpm); var ticklen = 0|(f_smp * 2.5 / bpm);
var VU = new Float32Array(nchan); var VU = new Float32Array(nchan);
@ -699,7 +711,7 @@ function playXM(arrayBuf) {
} }
} }
audioctx = new AudioContext(); audioctx = new audioContext();
gainNode = audioctx.createGain(); gainNode = audioctx.createGain();
gainNode.gain.value = 0.1; // master volume gainNode.gain.value = 0.1; // master volume
jsNode = audioctx.createScriptProcessor(4096, 0, 2); jsNode = audioctx.createScriptProcessor(4096, 0, 2);