1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.composite.globalAlpha.imagepattern
// Description:
// Note:
importScripts("/resources/testharness.js");
importScripts("/html/canvas/resources/canvas-tests.js");
promise_test(async t => {
var canvas = new OffscreenCanvas(100, 50);
var ctx = canvas.getContext('2d');
ctx.fillStyle = '#0f0';
ctx.fillRect(0, 0, 100, 50);
const response = await fetch('/images/red.png');
const blob = await response.blob();
const bitmap = await createImageBitmap(blob);
ctx.fillStyle = ctx.createPattern(bitmap, 'no-repeat');
// Avoiding any potential alpha = 0 optimisations.
ctx.globalAlpha = 0.01;
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(canvas, 50,25, 2,253,0,255, 2);
t.done();
}, "");
done();
|
