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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.put.created</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.put.created</h1> | |
9 <p class="desc">putImageData() puts image data from createImageData() onto the c
anvas</p> | |
10 | |
11 | |
12 <script> | |
13 var t = async_test("putImageData() puts image data from createImageData() onto t
he canvas"); | |
14 t.step(function() { | |
15 | |
16 var offscreenCanvas = new OffscreenCanvas(100, 50); | |
17 var ctx = offscreenCanvas.getContext('2d'); | |
18 | |
19 var imgdata = ctx.createImageData(100, 50); | |
20 for (var i = 0; i < imgdata.data.length; i += 4) { | |
21 imgdata.data[i] = 0; | |
22 imgdata.data[i+1] = 255; | |
23 imgdata.data[i+2] = 0; | |
24 imgdata.data[i+3] = 255; | |
25 } | |
26 ctx.fillStyle = '#f00'; | |
27 ctx.fillRect(0, 0, 100, 50) | |
28 ctx.putImageData(imgdata, 0, 0); | |
29 _assertPixelApprox(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255",
2); | |
30 | |
31 t.done(); | |
32 | |
33 }); | |
34 </script> | |
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