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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| 3 <title>OffscreenCanvas test: 2d.imageData.create1.initial</title> |
| 4 <script src="/resources/testharness.js"></script> |
| 5 <script src="/resources/testharnessreport.js"></script> |
| 6 <script src="/common/canvas-tests.js"></script> |
| 7 |
| 8 <h1>2d.imageData.create1.initial</h1> |
| 9 <p class="desc">createImageData(imgdata) returns transparent black data of the r
ight size</p> |
| 10 |
| 11 |
| 12 <script> |
| 13 var t = async_test("createImageData(imgdata) returns transparent black data of t
he right size"); |
| 14 t.step(function() { |
| 15 |
| 16 var offscreenCanvas = new OffscreenCanvas(100, 50); |
| 17 var ctx = offscreenCanvas.getContext('2d'); |
| 18 |
| 19 ctx.fillStyle = '#0f0'; |
| 20 ctx.fillRect(0, 0, 100, 50); |
| 21 var imgdata1 = ctx.getImageData(0, 0, 10, 20); |
| 22 var imgdata2 = ctx.createImageData(imgdata1); |
| 23 _assertSame(imgdata2.data.length, imgdata1.data.length, "imgdata2.data.length",
"imgdata1.data.length"); |
| 24 _assertSame(imgdata2.width, imgdata1.width, "imgdata2.width", "imgdata1.width"); |
| 25 _assertSame(imgdata2.height, imgdata1.height, "imgdata2.height", "imgdata1.heigh
t"); |
| 26 var isTransparentBlack = true; |
| 27 for (var i = 0; i < imgdata2.data.length; ++i) |
| 28 if (imgdata2.data[i] !== 0) |
| 29 isTransparentBlack = false; |
| 30 _assert(isTransparentBlack, "isTransparentBlack"); |
| 31 |
| 32 t.done(); |
| 33 |
| 34 }); |
| 35 </script> |
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Chromium Code Reviews
Issue 2550713004:
Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a (Closed)
