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Added polyfill for Math.imul to support IE

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Christoph Oberhofer
2015-08-29 20:45:53 +02:00
parent bc72830035
commit edf813a20d
1 changed files with 9 additions and 0 deletions
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src/typedefs.js
+9
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@@ -19,3 +19,12 @@ if (typeof window !== 'undefined') {
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
} }
Math.imul = Math.imul || function(a, b) {
var ah = (a >>> 16) & 0xffff,
al = a & 0xffff,
bh = (b >>> 16) & 0xffff,
bl = b & 0xffff;
// the shift by 0 fixes the sign on the high part
// the final |0 converts the unsigned value into a signed value
return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
};