test_pannerNode.html

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<!DOCTYPE HTML>

<html>

<head>

  <title>Test PannerNode</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<pre id="test">

<script class="testbody" type="text/javascript">

function near(a, b, msg) {

  ok(Math.abs(a - b) < 1e-4, msg);

SimpleTest.waitForExplicitFinish();

addLoadEvent(function() {

  var context = new AudioContext();

  var buffer = context.createBuffer(1, 2048, context.sampleRate);

  for (var i = 0; i < 2048; ++i) {

    buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);

  var destination = context.destination;

  var source = context.createBufferSource();

  var panner = new PannerNode(context);

  source.buffer = buffer;

  source.connect(panner);

  panner.connect(destination);

  // Verify default values

  is(panner.panningModel, "equalpower", "Correct default value for panning model");

  is(panner.distanceModel, "inverse", "Correct default value for distance model");

  near(panner.refDistance, 1, "Correct default value for ref distance");

  near(panner.maxDistance, 10000, "Correct default value for max distance");

  near(panner.rolloffFactor, 1, "Correct default value for rolloff factor");

  near(panner.coneInnerAngle, 360, "Correct default value for cone inner angle");

  near(panner.coneOuterAngle, 360, "Correct default value for cone outer angle");

  near(panner.coneOuterGain, 0, "Correct default value for cone outer gain");

  is(panner.channelCount, 2, "panner node has 2 input channels by default");

  is(panner.channelCountMode, "clamped-max", "Correct channelCountMode for the panner node");

  is(panner.channelInterpretation, "speakers", "Correct channelCountInterpretation for the panner node");

  panner.setPosition(1, 1, 1);

  near(panner.positionX.value, 1, "setPosition sets AudioParam properly");

  near(panner.positionY.value, 1, "setPosition sets AudioParam properly");

  near(panner.positionZ.value, 1, "setPosition sets AudioParam properly");

  panner.setOrientation(0, 1, 0);

  near(panner.orientationX.value, 0, "setOrientation sets AudioParam properly");

  near(panner.orientationY.value, 1, "setOrientation sets AudioParam properly");

  near(panner.orientationZ.value, 0, "setOrientation sets AudioParam properly");

  source.start(0);

  SimpleTest.executeSoon(function() {

    source.stop(0);

    source.disconnect();

    panner.disconnect();

    SimpleTest.finish();

});

});

</script>

</pre>

</body>

</html>