| Index: third_party/WebKit/LayoutTests/webaudio/audioparam-setValueCurve-copy.html
|
| diff --git a/third_party/WebKit/LayoutTests/webaudio/audioparam-setValueCurve-copy.html b/third_party/WebKit/LayoutTests/webaudio/audioparam-setValueCurve-copy.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..a09afeab9dc6c4e18c7cb3e0f47a743aa445c418
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/webaudio/audioparam-setValueCurve-copy.html
|
| @@ -0,0 +1,97 @@
|
| +<!doctype html>
|
| +<html>
|
| + <head>
|
| + <script src="../resources/js-test.js"></script>
|
| + <script src="resources/compatibility.js"></script>
|
| + <script src="resources/audio-testing.js"></script>
|
| + <script src="resources/panner-formulas.js"></script>
|
| + <title>Test setValueCurveAtTime Copies the Curve Data</title>
|
| + </head>
|
| +
|
| + <body>
|
| + <script>
|
| + description("Test setValueCurveAtTime Copies the Curve Data");
|
| + window.jsTestIsAsync = true;
|
| +
|
| + var sampleRate = 48000;
|
| + var renderFrames = 1024;
|
| + var renderDuration = renderFrames / sampleRate;
|
| +
|
| + var audit = Audit.createTaskRunner();
|
| +
|
| + // Test that changing the curve array to setValueCurveAtTime doesn't
|
| + // change the automation output.
|
| + audit.defineTask("test-copy", function (done) {
|
| + // Two-channel context; channel 0 is the test result, and channel 1 is
|
| + // the expected result.
|
| + var context = new OfflineAudioContext(2, renderFrames, sampleRate);
|
| +
|
| + var source = context.createBufferSource();
|
| + source.buffer = createConstantBuffer(context, 1, 1);
|
| + source.loop = true;
|
| +
|
| + // Create two gain nodes. gainRef is the reference with the expected
|
| + // automation results. gainTest is the test which will have the curve
|
| + // modified.
|
| + var gainTest = context.createGain();
|
| + var gainRef = context.createGain();
|
| +
|
| + var merger = context.createChannelMerger(2);
|
| +
|
| + // The actual curve data can be anything, but we use this for
|
| + // simplicity.
|
| + var curveData = [1, 0];
|
| + var curveRef = Float32Array.from(curveData);
|
| + var curveTest = Float32Array.from(curveData);
|
| +
|
| + // Create the graph.
|
| + source.connect(gainTest);
|
| + source.connect(gainRef);
|
| + gainTest.connect(merger, 0, 0);
|
| + gainRef.connect(merger, 0, 1);
|
| + merger.connect(context.destination);
|
| +
|
| + // Initialize the gains.
|
| + gainTest.gain.setValueAtTime(0, 0);
|
| + gainRef.gain.setValueAtTime(0, 0);
|
| +
|
| + // Set up the value curve. At this point curveTest and curveRef are the
|
| + // same.
|
| + gainTest.gain.setValueCurveAtTime(curveTest, 0, renderDuration);
|
| + gainRef.gain.setValueCurveAtTime(curveRef, 0, renderDuration);
|
| +
|
| + // After rendering has started, modify curveTest.
|
| + context.suspend(128 / sampleRate).then(function () {
|
| + // Change the values of curve now. Any transformation is ok as long
|
| + // as curveTest changes. We do this to make it really obvious.
|
| + for (var k = 0; k < curveTest.length; ++k)
|
| + curveTest[k] = 100 * curveTest[k] + 1;
|
| + }).then(context.resume.bind(context));
|
| +
|
| + // Start the test!
|
| + source.start();
|
| +
|
| + context.startRendering().then(function (resultBuffer) {
|
| + var testData = resultBuffer.getChannelData(0);
|
| + var refData = resultBuffer.getChannelData(1);
|
| +
|
| + // The test result and the reference should be identical since
|
| + // changing the curve data should not affect the automation.
|
| + var success = Should("setValueCurve output", testData).beEqualToArray(refData);
|
| +
|
| + if (success)
|
| + testPassed("Changing the curve data did not change the result.");
|
| + else
|
| + testFailed("Changing the curve data unexpectedly changed the result.");
|
| + }).then(done);
|
| + });
|
| +
|
| + audit.defineTask("finish", function (done) {
|
| + finishJSTest();
|
| + done();
|
| + });
|
| +
|
| + audit.runTasks();
|
| + </script>
|
| + </body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 2016563002:
AudioParam.setValueCurveAtTime() should copy the curve data (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master