1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webaudio/test/test_audioBufferSourceNodeNeutered.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,58 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<head>
1.7 + <title>Test AudioBufferSourceNode when an AudioBuffer's getChanneData array is neutered</title>
1.8 + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.9 + <script type="text/javascript" src="webaudio.js"></script>
1.10 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
1.11 +</head>
1.12 +<body>
1.13 +<pre id="test">
1.14 +<script class="testbody" type="text/javascript">
1.15 +
1.16 +function createGarbage() {
1.17 + var s = [];
1.18 + for (var i = 0; i < 10000000; ++i) {
1.19 + s.push(i);
1.20 + }
1.21 + var sum = 0;
1.22 + for (var i = 0; i < s.length; ++i) {
1.23 + sum += s[i];
1.24 + }
1.25 + return sum;
1.26 +}
1.27 +
1.28 +var worker = new Worker("audioBufferSourceNodeNeutered_worker.js");
1.29 +
1.30 +var gTest = {
1.31 + length: 2048,
1.32 + numberOfChannels: 1,
1.33 + createGraph: function(context) {
1.34 + var buffer = context.createBuffer(1, 10000000, context.sampleRate);
1.35 + var data = buffer.getChannelData(0);
1.36 + for (var i = 0; i < data.length; ++i) {
1.37 + data[i] = (i%100)/100 - 0.5;
1.38 + }
1.39 +
1.40 + // Neuter the buffer now
1.41 + var data = buffer.getChannelData(0).buffer;
1.42 + worker.postMessage(data, [data]);
1.43 + // Create garbage and GC to replace the buffer data with garbage
1.44 + SpecialPowers.gc();
1.45 + createGarbage();
1.46 + SpecialPowers.gc();
1.47 +
1.48 + var source = context.createBufferSource();
1.49 + source.buffer = buffer;
1.50 + source.start();
1.51 + // This should play silence
1.52 + return source;
1.53 + },
1.54 +};
1.55 +
1.56 +runTest();
1.57 +
1.58 +</script>
1.59 +</pre>
1.60 +</body>
1.61 +</html>
