| Index: third_party/WebKit/LayoutTests/webaudio/WaveShaper/waveshaper.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/WaveShaper/waveshaper.html b/third_party/WebKit/LayoutTests/webaudio/WaveShaper/waveshaper.html
|
| index 3a42391c00d8cde95745be925d05079608b46a87..78a667390d72572f387286024465a7a98b9b0fc3 100644
|
| --- a/third_party/WebKit/LayoutTests/webaudio/WaveShaper/waveshaper.html
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/WaveShaper/waveshaper.html
|
| @@ -1,122 +1,127 @@
|
| <!DOCTYPE html>
|
| -
|
| <html>
|
| -<head>
|
| -<script src="../../resources/testharness.js"></script>
|
| -<script src="../../resources/testharnessreport.js"></script>
|
| -<script src="../resources/audit-util.js"></script>
|
| -<script src="../resources/audit.js"></script>
|
| -<script type="text/javascript" src="../resources/buffer-loader.js"></script>
|
| -</head>
|
| -
|
| -<body>
|
| -<script>
|
| -var audit = Audit.createTaskRunner();
|
| -
|
| -var sampleRate = 44100;
|
| -var lengthInSeconds = 4;
|
| -var numberOfRenderFrames = sampleRate * lengthInSeconds;
|
| -var numberOfCurveFrames = 65536;
|
| -var inputBuffer;
|
| -var waveShapingCurve;
|
| -
|
| -var context;
|
| -
|
| -function generateInputBuffer() {
|
| - // Create mono input buffer.
|
| - var buffer = context.createBuffer(1, numberOfRenderFrames, context.sampleRate);
|
| - var data = buffer.getChannelData(0);
|
| -
|
| - // Generate an input vector with values from -1 -> +1 over a duration of lengthInSeconds.
|
| - // This exercises the full nominal input range and will touch every point of the shaping curve.
|
| - for (var i = 0; i < numberOfRenderFrames; ++i) {
|
| - var x = i / numberOfRenderFrames; // 0 -> 1
|
| - x = 2 * x - 1; // -1 -> +1
|
| - data[i] = x;
|
| - }
|
| -
|
| - return buffer;
|
| -}
|
| -
|
| -// Generates a symmetric curve: Math.atan(5 * x) / (0.5 * Math.PI)
|
| -// (with x == 0 corresponding to the center of the array)
|
| -// This curve is arbitrary, but would be useful in the real-world.
|
| -// To some extent, the actual curve we choose is not important in this test,
|
| -// since the input vector walks through all possible curve values.
|
| -function generateWaveShapingCurve() {
|
| - var curve = new Float32Array(numberOfCurveFrames);
|
| -
|
| - var n = numberOfCurveFrames;
|
| - var n2 = n / 2;
|
| -
|
| - for (var i = 0; i < n; ++i) {
|
| - var x = (i - n2) / n2;
|
| - var y = Math.atan(5 * x) / (0.5 * Math.PI);
|
| - }
|
| -
|
| - return curve;
|
| -}
|
| -
|
| -function checkShapedCurve(buffer, should) {
|
| - var inputData = inputBuffer.getChannelData(0);
|
| - var outputData = buffer.getChannelData(0);
|
| -
|
| - var success = true;
|
| -
|
| - // Go through every sample and make sure it has been shaped exactly according to the shaping curve we gave it.
|
| - for (var i = 0; i < buffer.length; ++i) {
|
| - var input = inputData[i];
|
| -
|
| - // Calculate an index based on input -1 -> +1 with 0 being at the center of the curve data.
|
| - var index = Math.floor(numberOfCurveFrames * 0.5 * (input + 1));
|
| -
|
| - // Clip index to the input range of the curve.
|
| - // This takes care of input outside of nominal range -1 -> +1
|
| - index = index < 0 ? 0 : index;
|
| - index = index > numberOfCurveFrames - 1 ? numberOfCurveFrames - 1 : index;
|
| -
|
| - var expectedOutput = waveShapingCurve[index];
|
| -
|
| - var output = outputData[i];
|
| -
|
| - if (output != expectedOutput) {
|
| + <head>
|
| + <title>
|
| + waveshaper.html
|
| + </title>
|
| + <script src="../../resources/testharness.js"></script>
|
| + <script src="../../resources/testharnessreport.js"></script>
|
| + <script src="../resources/audit-util.js"></script>
|
| + <script src="../resources/audit.js"></script>
|
| + <script src="../resources/buffer-loader.js"></script>
|
| + </head>
|
| + <body>
|
| + <script id="layout-test-code">
|
| + let audit = Audit.createTaskRunner();
|
| +
|
| + let sampleRate = 44100;
|
| + let lengthInSeconds = 4;
|
| + let numberOfRenderFrames = sampleRate * lengthInSeconds;
|
| + let numberOfCurveFrames = 65536;
|
| + let inputBuffer;
|
| + let waveShapingCurve;
|
| +
|
| + let context;
|
| +
|
| + function generateInputBuffer() {
|
| + // Create mono input buffer.
|
| + let buffer =
|
| + context.createBuffer(1, numberOfRenderFrames, context.sampleRate);
|
| + let data = buffer.getChannelData(0);
|
| +
|
| + // Generate an input vector with values from -1 -> +1 over a duration of
|
| + // lengthInSeconds. This exercises the full nominal input range and will
|
| + // touch every point of the shaping curve.
|
| + for (let i = 0; i < numberOfRenderFrames; ++i) {
|
| + let x = i / numberOfRenderFrames; // 0 -> 1
|
| + x = 2 * x - 1; // -1 -> +1
|
| + data[i] = x;
|
| + }
|
| +
|
| + return buffer;
|
| + }
|
| +
|
| + // Generates a symmetric curve: Math.atan(5 * x) / (0.5 * Math.PI)
|
| + // (with x == 0 corresponding to the center of the array)
|
| + // This curve is arbitrary, but would be useful in the real-world.
|
| + // To some extent, the actual curve we choose is not important in this
|
| + // test, since the input vector walks through all possible curve values.
|
| + function generateWaveShapingCurve() {
|
| + let curve = new Float32Array(numberOfCurveFrames);
|
| +
|
| + let n = numberOfCurveFrames;
|
| + let n2 = n / 2;
|
| +
|
| + for (let i = 0; i < n; ++i) {
|
| + let x = (i - n2) / n2;
|
| + let y = Math.atan(5 * x) / (0.5 * Math.PI);
|
| + }
|
| +
|
| + return curve;
|
| + }
|
| +
|
| + function checkShapedCurve(buffer, should) {
|
| + let inputData = inputBuffer.getChannelData(0);
|
| + let outputData = buffer.getChannelData(0);
|
| +
|
| + let success = true;
|
| +
|
| + // Go through every sample and make sure it has been shaped exactly
|
| + // according to the shaping curve we gave it.
|
| + for (let i = 0; i < buffer.length; ++i) {
|
| + let input = inputData[i];
|
| +
|
| + // Calculate an index based on input -1 -> +1 with 0 being at the
|
| + // center of the curve data.
|
| + let index = Math.floor(numberOfCurveFrames * 0.5 * (input + 1));
|
| +
|
| + // Clip index to the input range of the curve.
|
| + // This takes care of input outside of nominal range -1 -> +1
|
| + index = index < 0 ? 0 : index;
|
| + index =
|
| + index > numberOfCurveFrames - 1 ? numberOfCurveFrames - 1 : index;
|
| +
|
| + let expectedOutput = waveShapingCurve[index];
|
| +
|
| + let output = outputData[i];
|
| +
|
| + if (output != expectedOutput) {
|
| success = false;
|
| break;
|
| + }
|
| }
|
| - }
|
| -
|
| - should(success, "WaveShaperNode applied non-linear distortion correctly")
|
| - .beTrue();
|
| -}
|
| -
|
| -audit.define("test", function (task, should) {
|
| - // Create offline audio context.
|
| - context = new OfflineAudioContext(1, numberOfRenderFrames, sampleRate);
|
| -
|
| - // source -> waveshaper -> destination
|
| - var source = context.createBufferSource();
|
| - var waveshaper = context.createWaveShaper();
|
| - source.connect(waveshaper);
|
| - waveshaper.connect(context.destination);
|
| -
|
| - // Create an input test vector.
|
| - inputBuffer = generateInputBuffer();
|
| - source.buffer = inputBuffer;
|
| -
|
| - // We'll apply non-linear distortion according to this shaping curve.
|
| - waveShapingCurve = generateWaveShapingCurve();
|
| - waveshaper.curve = waveShapingCurve;
|
| -
|
| - source.start(0);
|
| -
|
| - context.startRendering()
|
| - .then(buffer => checkShapedCurve(buffer, should))
|
| - .then(task.done.bind(task));
|
| -});
|
| -
|
| -audit.run();
|
| -
|
| -</script>
|
| -
|
| -</body>
|
| +
|
| + should(
|
| + success, 'WaveShaperNode applied non-linear distortion correctly')
|
| + .beTrue();
|
| + }
|
| +
|
| + audit.define('test', function(task, should) {
|
| + // Create offline audio context.
|
| + context = new OfflineAudioContext(1, numberOfRenderFrames, sampleRate);
|
| +
|
| + // source -> waveshaper -> destination
|
| + let source = context.createBufferSource();
|
| + let waveshaper = context.createWaveShaper();
|
| + source.connect(waveshaper);
|
| + waveshaper.connect(context.destination);
|
| +
|
| + // Create an input test vector.
|
| + inputBuffer = generateInputBuffer();
|
| + source.buffer = inputBuffer;
|
| +
|
| + // We'll apply non-linear distortion according to this shaping curve.
|
| + waveShapingCurve = generateWaveShapingCurve();
|
| + waveshaper.curve = waveShapingCurve;
|
| +
|
| + source.start(0);
|
| +
|
| + context.startRendering()
|
| + .then(buffer => checkShapedCurve(buffer, should))
|
| + .then(task.done.bind(task));
|
| + });
|
| +
|
| + audit.run();
|
| + </script>
|
| + </body>
|
| </html>
|
|
|
Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
