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63 lines
1.8 KiB
HTML
63 lines
1.8 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test buffers do not interfere when scheduled in sequence</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<script type="text/javascript" src="webaudio.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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var OFFSETS = [0.005, 0.01, 0.02, 0.03];
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var LENGTH = 128;
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var gTest = {
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length: 128 * OFFSETS.length,
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numberOfChannels: 1,
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createGraph: function(context) {
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var gain = context.createGain();
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// create a repeating sample
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var repeatingSample = context.createBuffer(1, 2, context.sampleRate);
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var c = repeatingSample.getChannelData(0);
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for (var i = 0; i < repeatingSample.length; ++i) {
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c[i] = i % 2 == 0 ? 1 : -1;
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}
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OFFSETS.forEach(function (offset, offsetIdx) {
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// Schedule a set of nodes to repeat the sample.
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for (var i = 0; i < LENGTH; i += repeatingSample.length) {
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var source = context.createBufferSource();
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source.buffer = repeatingSample;
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source.connect(gain);
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source.start((offsetIdx * LENGTH + i + offset) / context.sampleRate);
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}
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buffer = context.createBuffer(1, LENGTH, context.sampleRate);
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c = buffer.getChannelData(0);
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for (var i = 0; i < buffer.length; ++i) {
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c[i] = i % 2 == 0 ? -1 : 1;
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}
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var source = context.createBufferSource();
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source.buffer = buffer;
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source.connect(gain);
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source.start((offsetIdx * LENGTH + offset) / context.sampleRate);
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});
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return gain;
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},
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createExpectedBuffers: function(context) {
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return context.createBuffer(1, gTest.length, context.sampleRate);
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},
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};
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runTest();
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</script>
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</pre>
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</body>
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</html>
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