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webvirtcloud/static/js/spice-html5/spicearraybuffer.js
2018-08-08 14:00:35 +03:00

58 lines
1.9 KiB
JavaScript
Executable file

"use strict";
/*
Copyright (C) 2012 by Jeremy P. White <jwhite@codeweavers.com>
This file is part of spice-html5.
spice-html5 is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
spice-html5 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with spice-html5. If not, see <http://www.gnu.org/licenses/>.
*/
/*----------------------------------------------------------------------------
** SpiceArrayBufferSlice
** This function is a work around for IE 10, which has no slice()
** method in it's subclass.
**--------------------------------------------------------------------------*/
function SpiceArrayBufferSlice(start, end)
{
start = start || 0;
end = end || this.byteLength;
if (end < 0)
end = this.byteLength + end;
if (start < 0)
start = this.byteLength + start;
if (start < 0)
start = 0;
if (end < 0)
end = 0;
if (end > this.byteLength)
end = this.byteLength;
if (start > end)
start = end;
var ret = new ArrayBuffer(end - start);
var in1 = new Uint8Array(this, start, end - start);
var out = new Uint8Array(ret);
var i;
for (i = 0; i < end - start; i++)
out[i] = in1[i];
return ret;
}
if (! ArrayBuffer.prototype.slice)
{
ArrayBuffer.prototype.slice = SpiceArrayBufferSlice;
console.log("WARNING: ArrayBuffer.slice() is missing; we are extending ArrayBuffer to compensate");
}