Chromium Code Reviews| OLD | NEW |
|---|---|
| 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <script src="../../resources/js-test.js"></script> | 4 <script src="../../resources/testharness.js"></script> |
| 5 <script src="../../resources/testharnessreport.js"></script> | |
| 6 <script src="../resources/audit-util.js"></script> | |
| 7 <script src="../resources/audit.js"></script> | |
| 5 </head> | 8 </head> |
| 6 | 9 |
| 7 <body> | 10 <body> |
| 8 <div id="description"></div> | |
| 9 <div id="console"></div> | |
| 10 | |
| 11 <script> | 11 <script> |
| 12 description("Test WaveShaperNode including values outside the range of [-1 ,1]"); | 12 var audit = Audit.createTaskRunner(); |
| 13 | 13 |
| 14 var context; | 14 var context; |
| 15 var bufferData; | 15 var bufferData; |
| 16 var outputData; | 16 var outputData; |
| 17 var reference; | 17 var reference; |
| 18 | 18 |
| 19 var sampleRate = 48000; | 19 var sampleRate = 48000; |
| 20 // Must be odd so we have an exact middle point. | 20 // Must be odd so we have an exact middle point. |
| 21 var testFrames = 23; | 21 var testFrames = 23; |
| 22 var scale = 1 / ((testFrames - 1) / 2 - 1); | 22 var scale = 1 / ((testFrames - 1) / 2 - 1); |
| (...skipping 18 matching lines...) Expand all Loading... | |
| 41 ref[midPoint] = 1; | 41 ref[midPoint] = 1; |
| 42 // Generate a ramp from 1 down to 0 | 42 // Generate a ramp from 1 down to 0 |
| 43 for (var k = midPoint; k < testFrames - 1; ++k) { | 43 for (var k = midPoint; k < testFrames - 1; ++k) { |
| 44 ref[k + 1] = 2 - k * scale; | 44 ref[k + 1] = 2 - k * scale; |
| 45 } | 45 } |
| 46 // The last sample is out of range at 1+scale | 46 // The last sample is out of range at 1+scale |
| 47 ref[testFrames - 1] = 0; | 47 ref[testFrames - 1] = 0; |
| 48 return ref; | 48 return ref; |
| 49 } | 49 } |
| 50 | 50 |
| 51 function checkResult (event) { | 51 function checkResult (renderedBuffer, should) { |
| 52 outputData = event.renderedBuffer.getChannelData(0); | 52 outputData = renderedBuffer.getChannelData(0); |
| 53 reference = generateReference(); | 53 reference = generateReference(); |
| 54 var success = true; | 54 var success = true; |
| 55 // Verify that every output value matches our expected reference value. | 55 // Verify that every output value matches our expected reference value. |
| 56 | |
|
hongchan
2017/02/22 19:05:35
An empty line.
| |
| 56 for (var k = 0; k < outputData.length; ++k) { | 57 for (var k = 0; k < outputData.length; ++k) { |
| 57 var diff = outputData[k] - reference[k]; | 58 var diff = outputData[k] - reference[k]; |
| 58 if (Math.abs(diff) <= diffThreshold) { | 59 should(Math.abs(diff), |
| 59 testPassed(bufferData[k].toFixed(decimals) + " -> " + outputData[k ].toFixed(decimals) + "."); | 60 "Max error mapping " + bufferData[k].toFixed(decimals) + " to " + |
| 60 } else { | 61 outputData[k].toFixed(decimals)) |
| 61 testFailed(bufferData[k].toFixed(decimals) + " -> " + outputData[k ].toFixed(decimals) + ", but expected " + reference[k].toFixed(decimals) + "."); | 62 .beLessThanOrEqualTo(diffThreshold); |
| 62 success = false; | |
| 63 } | |
| 64 } | 63 } |
| 65 | |
| 66 if (success) | |
| 67 testPassed("All outputs matched expected results."); | |
| 68 else | |
| 69 testFailed("Some outputs did not match expected results."); | |
| 70 | |
| 71 finishJSTest(); | |
| 72 } | 64 } |
| 73 | 65 |
| 74 function runTest () { | 66 audit.define("test", function (task, should) { |
| 75 if (window.testRunner) { | 67 task.describe("Test WaveShaperNode including values outside the range of [-1,1]"); |
|
hongchan
2017/02/22 19:05:34
Hmm. Should we try to land this after the 'task.de
Raymond Toy
2017/02/22 19:23:24
Yes. I'll wait and then rebase this.
| |
| 76 testRunner.dumpAsText(); | |
| 77 testRunner.waitUntilDone(); | |
| 78 } | |
| 79 | |
| 80 window.jsTestIsAsync = true; | |
| 81 | |
| 82 context = new OfflineAudioContext(1, testFrames, sampleRate); | 68 context = new OfflineAudioContext(1, testFrames, sampleRate); |
| 83 // Create input values between -1.1 and 1.1 | 69 // Create input values between -1.1 and 1.1 |
| 84 var buffer = context.createBuffer(1, testFrames, context.sampleRate); | 70 var buffer = context.createBuffer(1, testFrames, context.sampleRate); |
| 85 bufferData = buffer.getChannelData(0); | 71 bufferData = buffer.getChannelData(0); |
| 86 var start = -1 - scale; | 72 var start = -1 - scale; |
| 87 for (var k = 0; k < testFrames; ++k) { | 73 for (var k = 0; k < testFrames; ++k) { |
| 88 bufferData[k] = k * scale + start; | 74 bufferData[k] = k * scale + start; |
| 89 } | 75 } |
| 90 | 76 |
| 91 var source = context.createBufferSource(); | 77 var source = context.createBufferSource(); |
| 92 source.buffer = buffer; | 78 source.buffer = buffer; |
| 93 | 79 |
| 94 // Create simple waveshaper. It should map -1 to 0, 0 to 1, and +1 to 0 and interpolate | 80 // Create simple waveshaper. It should map -1 to 0, 0 to 1, and +1 to 0 and interpolate |
| 95 // all points in between using a simple linear interpolator. | 81 // all points in between using a simple linear interpolator. |
| 96 var shaper = context.createWaveShaper(); | 82 var shaper = context.createWaveShaper(); |
| 97 var curve = new Float32Array(3); | 83 var curve = new Float32Array(3); |
| 98 curve[0] = 0; | 84 curve[0] = 0; |
| 99 curve[1] = 1; | 85 curve[1] = 1; |
| 100 curve[2] = 0; | 86 curve[2] = 0; |
| 101 shaper.curve = curve; | 87 shaper.curve = curve; |
| 102 source.connect(shaper); | 88 source.connect(shaper); |
| 103 shaper.connect(context.destination); | 89 shaper.connect(context.destination); |
| 104 | 90 |
| 105 source.start(); | 91 source.start(); |
| 106 context.oncomplete = checkResult; | 92 context.startRendering() |
| 107 context.startRendering(); | 93 .then(buffer => checkResult(buffer, should)) |
| 108 } | 94 .then(task.done.bind(task)); |
|
hongchan
2017/02/22 19:05:34
() => task.done()
We should move away from .bind(
Raymond Toy
2017/02/22 19:23:24
Done.
| |
| 95 }); | |
| 109 | 96 |
| 110 runTest(); | 97 audit.run(); |
| 111 successfullyParsed = true; | |
| 112 </script> | 98 </script> |
| 113 </body> | 99 </body> |
| 114 </html> | 100 </html> |
| OLD | NEW |