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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.drawImage.animated.poster</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.drawImage.animated.poster</h1> | |
9 <p class="desc">drawImage() of an APNG draws the poster frame</p> | |
10 | |
11 | |
12 <script> | |
13 var t = async_test("drawImage() of an APNG draws the poster frame"); | |
14 t.step(function() { | |
15 | |
16 var offscreenCanvas = new OffscreenCanvas(100, 50); | |
17 var ctx = offscreenCanvas.getContext('2d'); | |
18 | |
19 var promise = new Promise(function(resolve, reject) { | |
20 var xhr = new XMLHttpRequest(); | |
21 xhr.open("GET", '/images/anim-poster-gr.png'); | |
22 xhr.responseType = 'blob'; | |
23 xhr.send(); | |
24 xhr.onload = function() { | |
25 resolve(xhr.response); | |
26 }; | |
27 }); | |
28 promise.then(function(response) { | |
29 ctx.drawImage(response, 0, 0); | |
30 _assertPixelApprox(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,25
5", 2); | |
31 }); | |
32 | |
33 t.done(); | |
34 | |
35 }); | |
36 </script> | |
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