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| 1 <!doctype html> | 1 <!doctype html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <script src="../../resources/testharness.js"></script> | 4 <script src="../../resources/testharness.js"></script> |
| 5 <script src="../../resources/testharnessreport.js"></script> | 5 <script src="../../resources/testharnessreport.js"></script> |
| 6 <script src="../resources/audio-testing.js"></script> | 6 <script src="../resources/audit.js"></script> |
| 7 <title>OfflineAudioContext.startRendering Promise</title> | 7 <title>OfflineAudioContext.startRendering Promise</title> |
| 8 </head> | 8 </head> |
| 9 | 9 |
| 10 <body> | 10 <body> |
| 11 <script> | 11 <script> |
| 12 var context; | 12 var context; |
| 13 var promiseData; | 13 var promiseData; |
| 14 | 14 |
| 15 var sampleRate = 48000; | 15 var sampleRate = 48000; |
| 16 var renderSeconds = 1; | 16 var renderSeconds = 1; |
| 17 var renderFrames = sampleRate * renderSeconds; | 17 var renderFrames = sampleRate * renderSeconds; |
| 18 var contextChannels = 2; | 18 var contextChannels = 2; |
| 19 | 19 |
| 20 var audit = Audit.createTaskRunner(); | 20 var audit = Audit.createTaskRunner(); |
| 21 | 21 |
| 22 audit.defineTask('reject-promise', function (done) { | 22 audit.define('reject-promise', (task, should) => { |
| 23 // Create a context and verify that calling startRendering more than onc
e causes a rejected | 23 // Create a context and verify that calling startRendering more than |
| 24 // promise. | 24 // once causes a rejected promise. |
| 25 var context = new OfflineAudioContext(contextChannels, renderFrames, sam
pleRate); | 25 var context = |
| 26 new OfflineAudioContext(contextChannels, renderFrames, sampleRate); |
| 26 context.startRendering(); | 27 context.startRendering(); |
| 27 Should('Promise from calling startRendering twice', | 28 should( |
| 28 context.startRendering()) | 29 context.startRendering(), |
| 29 .beRejected() | 30 'Promise from calling startRendering twice') |
| 30 .then(done); | 31 .beRejected() |
| 32 .then(() => task.done()); |
| 31 }); | 33 }); |
| 32 | 34 |
| 33 audit.defineTask('promise-results', function (done) { | 35 audit.define('promise-results', (task, should) => { |
| 34 // Create an offline context and verify that buffer returned by the prom
ise matches the | 36 // Create an offline context and verify that buffer returned by the |
| 35 // expected results. | 37 // promise matches the expected results. |
| 36 context = new OfflineAudioContext(contextChannels, renderFrames, sampleR
ate); | 38 context = |
| 39 new OfflineAudioContext(contextChannels, renderFrames, sampleRate); |
| 37 | 40 |
| 38 var buffer = context.createBuffer(contextChannels, renderFrames, sampleR
ate); | 41 var buffer = |
| 42 context.createBuffer(contextChannels, renderFrames, sampleRate); |
| 39 for (var k = 0; k < renderFrames; ++k) { | 43 for (var k = 0; k < renderFrames; ++k) { |
| 40 buffer.getChannelData(0)[k] = 1; | 44 buffer.getChannelData(0)[k] = 1; |
| 41 buffer.getChannelData(1)[k] = 2; | 45 buffer.getChannelData(1)[k] = 2; |
| 42 } | 46 } |
| 43 | 47 |
| 44 var source = context.createBufferSource(); | 48 var source = context.createBufferSource(); |
| 45 source.buffer = buffer; | 49 source.buffer = buffer; |
| 46 source.connect(context.destination); | 50 source.connect(context.destination); |
| 47 source.start(); | 51 source.start(); |
| 48 | 52 |
| 49 context.startRendering().then(handlePromise).then(done); | 53 context.startRendering() |
| 54 .then(buffer => { |
| 55 return handlePromise(should, buffer); |
| 56 }) |
| 57 .then(() => task.done()); |
| 50 }); | 58 }); |
| 51 | |
| 52 audit.runTasks(); | |
| 53 | |
| 54 function handlePromise(buffer) | |
| 55 { | |
| 56 renderedData = buffer; | |
| 57 var success = true; | |
| 58 | 59 |
| 59 Should("context.state", context.state) | 60 audit.run(); |
| 60 .beEqualTo("closed"); | |
| 61 Should("renderedData.numberOfChannels", renderedData.numberOfChannels) | |
| 62 .beEqualTo(contextChannels); | |
| 63 Should("renderedData.length", renderedData.length) | |
| 64 .beEqualTo(renderFrames); | |
| 65 | 61 |
| 66 for (var channel = 0; channel < contextChannels; ++channel) { | 62 function handlePromise(should, renderedData) { |
| 67 var data = renderedData.getChannelData(channel); | 63 should(context.state, 'context.state').beEqualTo('closed'); |
| 68 for (var k = 0; k < renderFrames; ++k) { | 64 should(renderedData.numberOfChannels, 'renderedData.numberOfChannels') |
| 69 if (data[k] != channel + 1) { | 65 .beEqualTo(contextChannels); |
| 70 success = false; | 66 should(renderedData.length, 'renderedData.length') |
| 71 badChannel = channel; | 67 .beEqualTo(renderFrames); |
| 72 badFrame = k; | 68 |
| 73 break; | 69 for (let channel = 0; channel < renderedData.numberOfChannels; |
| 74 } | 70 ++channel) { |
| 75 } | 71 should( |
| 76 if (!success) | 72 renderedData.getChannelData(channel), `Output channel ${channel}`) |
| 77 break; | 73 .beConstantValueOf(channel + 1); |
| 78 } | 74 } |
| 79 | |
| 80 Should('OfflineAudioContext.startRendering promise rendered data', | |
| 81 success) | |
| 82 .summarize('correctly', 'incorrectly'); | |
| 83 } | 75 } |
| 84 </script> | 76 </script> |
| 85 | 77 |
| 86 </body> | 78 </body> |
| 87 </html> | 79 </html> |
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