mirror of
https://github.com/servo/servo.git
synced 2025-07-13 02:13:40 +01:00
40 lines
1.1 KiB
HTML
40 lines
1.1 KiB
HTML
<!DOCTYPE html>
|
|
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
|
|
<title>OffscreenCanvas test: 2d.composite.globalAlpha.imagepattern</title>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script src="/common/canvas-tests.js"></script>
|
|
|
|
<h1>2d.composite.globalAlpha.imagepattern</h1>
|
|
<p class="desc"></p>
|
|
|
|
|
|
<script>
|
|
var t = async_test("");
|
|
t.step(function() {
|
|
|
|
var offscreenCanvas = new OffscreenCanvas(100, 50);
|
|
var ctx = offscreenCanvas.getContext('2d');
|
|
|
|
ctx.fillStyle = '#0f0';
|
|
ctx.fillRect(0, 0, 100, 50);
|
|
var promise = new Promise(function(resolve, reject) {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open("GET", '/images/red.png');
|
|
xhr.responseType = 'blob';
|
|
xhr.send();
|
|
xhr.onload = function() {
|
|
resolve(xhr.response);
|
|
};
|
|
});
|
|
promise.then(function(response) {
|
|
ctx.fillStyle = ctx.createPattern(response, 'no-repeat');
|
|
ctx.globalAlpha = 0.01; // avoid any potential alpha=0 optimisations
|
|
ctx.fillRect(0, 0, 100, 50);
|
|
_assertPixelApprox(offscreenCanvas, 50,25, 2,253,0,255, "50,25", "2,253,0,255", 2);
|
|
});
|
|
|
|
t.done();
|
|
|
|
});
|
|
</script>
|