36 lines
1 KiB
HTML
36 lines
1 KiB
HTML
<!DOCTYPE html>
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<html class="a">
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<head>
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<title>Cycles without DelayNode in audio node graph</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<script>
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function doTest() {
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var off = new OfflineAudioContext(1, 512, 48000);
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var osc = new OscillatorNode(off);
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var fb = new GainNode(off);
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// zero delay feedback loop
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osc.connect(fb).connect(fb).connect(off.destination);
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osc.start(0);
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return off.startRendering().then((b) => {
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return Promise.resolve(b.getChannelData(0));
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});
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}
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promise_test(() => {
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return doTest().then(samples => {
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var silent = true;
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for (var i = 0; i < samples.length; i++) {
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if (samples[i] != 0.0) {
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silent = false;
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break;
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}
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}
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assert_true(silent);
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});
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}, 'Test that cycles that don\'t contain a DelayNode are muted');
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</script>
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</body>
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</html>
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