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| 1 <!doctype html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <title> |
| 5 Test setValueCurveAtTime Copies the Curve Data |
| 6 </title> |
| 4 <script src="../../resources/testharness.js"></script> | 7 <script src="../../resources/testharness.js"></script> |
| 5 <script src="../../resources/testharnessreport.js"></script> | 8 <script src="../../resources/testharnessreport.js"></script> |
| 6 <script src="../resources/audit-util.js"></script> | 9 <script src="../resources/audit-util.js"></script> |
| 7 <script src="../resources/audit.js"></script> | 10 <script src="../resources/audit.js"></script> |
| 8 <script src="../resources/panner-formulas.js"></script> | 11 <script src="../resources/panner-formulas.js"></script> |
| 9 <title>Test setValueCurveAtTime Copies the Curve Data</title> | |
| 10 </head> | 12 </head> |
| 13 <body> |
| 14 <script id="layout-test-code"> |
| 15 let sampleRate = 48000; |
| 16 let renderFrames = 1024; |
| 17 let renderDuration = renderFrames / sampleRate; |
| 11 | 18 |
| 12 <body> | 19 let audit = Audit.createTaskRunner(); |
| 13 <script> | |
| 14 | |
| 15 var sampleRate = 48000; | |
| 16 var renderFrames = 1024; | |
| 17 var renderDuration = renderFrames / sampleRate; | |
| 18 | |
| 19 var audit = Audit.createTaskRunner(); | |
| 20 | 20 |
| 21 // Test that changing the curve array to setValueCurveAtTime doesn't | 21 // Test that changing the curve array to setValueCurveAtTime doesn't |
| 22 // change the automation output. | 22 // change the automation output. |
| 23 audit.define("test-copy", (task, should) => { | 23 audit.define('test-copy', (task, should) => { |
| 24 // Two-channel context; channel 0 is the test result, and channel 1 is | 24 // Two-channel context; channel 0 is the test result, and channel 1 is |
| 25 // the expected result. | 25 // the expected result. |
| 26 var context = new OfflineAudioContext(2, renderFrames, sampleRate); | 26 let context = new OfflineAudioContext(2, renderFrames, sampleRate); |
| 27 | 27 |
| 28 var source = context.createBufferSource(); | 28 let source = context.createBufferSource(); |
| 29 source.buffer = createConstantBuffer(context, 1, 1); | 29 source.buffer = createConstantBuffer(context, 1, 1); |
| 30 source.loop = true; | 30 source.loop = true; |
| 31 | 31 |
| 32 // Create two gain nodes. gainRef is the reference with the expected | 32 // Create two gain nodes. gainRef is the reference with the expected |
| 33 // automation results. gainTest is the test which will have the curve | 33 // automation results. gainTest is the test which will have the curve |
| 34 // modified. | 34 // modified. |
| 35 var gainTest = context.createGain(); | 35 let gainTest = context.createGain(); |
| 36 var gainRef = context.createGain(); | 36 let gainRef = context.createGain(); |
| 37 | 37 |
| 38 var merger = context.createChannelMerger(2); | 38 let merger = context.createChannelMerger(2); |
| 39 | 39 |
| 40 // The actual curve data can be anything, but we use this for | 40 // The actual curve data can be anything, but we use this for |
| 41 // simplicity. | 41 // simplicity. |
| 42 var curveData = [1, 0]; | 42 let curveData = [1, 0]; |
| 43 var curveRef = Float32Array.from(curveData); | 43 let curveRef = Float32Array.from(curveData); |
| 44 var curveTest = Float32Array.from(curveData); | 44 let curveTest = Float32Array.from(curveData); |
| 45 | 45 |
| 46 // Create the graph. | 46 // Create the graph. |
| 47 source.connect(gainTest); | 47 source.connect(gainTest); |
| 48 source.connect(gainRef); | 48 source.connect(gainRef); |
| 49 gainTest.connect(merger, 0, 0); | 49 gainTest.connect(merger, 0, 0); |
| 50 gainRef.connect(merger, 0, 1); | 50 gainRef.connect(merger, 0, 1); |
| 51 merger.connect(context.destination); | 51 merger.connect(context.destination); |
| 52 | 52 |
| 53 // Initialize the gains. | 53 // Initialize the gains. |
| 54 gainTest.gain.setValueAtTime(0, 0); | 54 gainTest.gain.setValueAtTime(0, 0); |
| 55 gainRef.gain.setValueAtTime(0, 0); | 55 gainRef.gain.setValueAtTime(0, 0); |
| 56 | 56 |
| 57 // Set up the value curve. At this point curveTest and curveRef are the | 57 // Set up the value curve. At this point curveTest and curveRef are the |
| 58 // same. | 58 // same. |
| 59 gainTest.gain.setValueCurveAtTime(curveTest, 0, renderDuration); | 59 gainTest.gain.setValueCurveAtTime(curveTest, 0, renderDuration); |
| 60 gainRef.gain.setValueCurveAtTime(curveRef, 0, renderDuration); | 60 gainRef.gain.setValueCurveAtTime(curveRef, 0, renderDuration); |
| 61 | 61 |
| 62 // After rendering has started, modify curveTest. | 62 // After rendering has started, modify curveTest. |
| 63 context.suspend(128 / sampleRate).then(function () { | 63 context.suspend(128 / sampleRate) |
| 64 // Change the values of curve now. Any transformation is ok as long | 64 .then(function() { |
| 65 // as curveTest changes. We do this to make it really obvious. | 65 // Change the values of curve now. Any transformation is ok as |
| 66 for (var k = 0; k < curveTest.length; ++k) | 66 // long as curveTest changes. We do this to make it really |
| 67 curveTest[k] = 100 * curveTest[k] + 1; | 67 // obvious. |
| 68 }).then(context.resume.bind(context)); | 68 for (let k = 0; k < curveTest.length; ++k) |
| 69 curveTest[k] = 100 * curveTest[k] + 1; |
| 70 }) |
| 71 .then(context.resume.bind(context)); |
| 69 | 72 |
| 70 // Start the test! | 73 // Start the test! |
| 71 source.start(); | 74 source.start(); |
| 72 | 75 |
| 73 context.startRendering().then(function (resultBuffer) { | 76 context.startRendering() |
| 74 var testData = resultBuffer.getChannelData(0); | 77 .then(function(resultBuffer) { |
| 75 var refData = resultBuffer.getChannelData(1); | 78 let testData = resultBuffer.getChannelData(0); |
| 79 let refData = resultBuffer.getChannelData(1); |
| 76 | 80 |
| 77 // The test result and the reference should be identical since | 81 // The test result and the reference should be identical since |
| 78 // changing the curve data should not affect the automation. | 82 // changing the curve data should not affect the automation. |
| 79 should(testData, "setValueCurve output").beEqualToArray(refData); | 83 should(testData, 'setValueCurve output').beEqualToArray(refData); |
| 80 }).then(() => task.done()); | 84 }) |
| 85 .then(() => task.done()); |
| 81 }); | 86 }); |
| 82 | 87 |
| 83 audit.run(); | 88 audit.run(); |
| 84 </script> | 89 </script> |
| 85 </body> | 90 </body> |
| 86 </html> | 91 </html> |
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Chromium Code Reviews
Issue 2895963003:
Apply layout-test-tidy to LayoutTests/webaudio (Closed)
