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31 lines
1.1 KiB
JavaScript
31 lines
1.1 KiB
JavaScript
/*
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* typedefs.js
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* Normalizes browser-specific prefixes
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*/
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if (typeof window !== 'undefined') {
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window.requestAnimFrame = (function () {
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return window.requestAnimationFrame ||
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window.webkitRequestAnimationFrame ||
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window.mozRequestAnimationFrame ||
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window.oRequestAnimationFrame ||
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window.msRequestAnimationFrame ||
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function (/* function FrameRequestCallback */ callback) {
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window.setTimeout(callback, 1000 / 60);
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};
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})();
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navigator.getUserMedia = navigator.getUserMedia ||
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navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
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window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
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}
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Math.imul = Math.imul || function(a, b) {
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var ah = (a >>> 16) & 0xffff,
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al = a & 0xffff,
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bh = (b >>> 16) & 0xffff,
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bl = b & 0xffff;
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// the shift by 0 fixes the sign on the high part
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// the final |0 converts the unsigned value into a signed value
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return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0) | 0);
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};
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