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| 1 <!DOCTYPE html> | |
| 2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> | |
| 3 <title>OffscreenCanvas test: 2d.imageData.create2.tiny</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.create2.tiny</h1> | |
| 9 <p class="desc">createImageData(sw, sh) works for sizes smaller than one pixel</
p> | |
| 10 | |
| 11 | |
| 12 <script> | |
| 13 var t = async_test("createImageData(sw, sh) works for sizes smaller than one pix
el"); | |
| 14 t.step(function() { | |
| 15 | |
| 16 var offscreenCanvas = new OffscreenCanvas(100, 50); | |
| 17 var ctx = offscreenCanvas.getContext('2d'); | |
| 18 | |
| 19 var imgdata = ctx.createImageData(0.0001, 0.0001); | |
| 20 _assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.l
ength", "imgdata.width*imgdata.height*4"); | |
| 21 _assertSame(imgdata.width, 1, "imgdata.width", "1"); | |
| 22 _assertSame(imgdata.height, 1, "imgdata.height", "1"); | |
| 23 var isTransparentBlack = true; | |
| 24 for (var i = 0; i < imgdata.data.length; ++i) | |
| 25 if (imgdata.data[i] !== 0) | |
| 26 isTransparentBlack = false; | |
| 27 _assert(isTransparentBlack, "isTransparentBlack"); | |
| 28 | |
| 29 t.done(); | |
| 30 | |
| 31 }); | |
| 32 </script> | |
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