summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.worker.js
blob: 75adb865ef9167c05fe0d04ea3cae39ca2e347a0 (plain)
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
28
29
30
31
32
33
34
// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
// OffscreenCanvas test in a worker:2d.imageData.put.unaffected
// Description:putImageData() is not affected by context state
// Note:

importScripts("/resources/testharness.js");
importScripts("/html/canvas/resources/canvas-tests.js");

var t = async_test("putImageData() is not affected by context state");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
    throw reason;
});
t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);
  var ctx = canvas.getContext('2d');

  ctx.fillStyle = '#0f0';
  ctx.fillRect(0, 0, 100, 50)
  var imgdata = ctx.getImageData(0, 0, 100, 50);
  ctx.fillStyle = '#f00';
  ctx.fillRect(0, 0, 100, 50)
  ctx.globalAlpha = 0.1;
  ctx.globalCompositeOperation = 'destination-atop';
  ctx.shadowColor = '#f00';
  ctx.shadowBlur = 1;
  ctx.translate(100, 50);
  ctx.scale(0.1, 0.1);
  ctx.putImageData(imgdata, 0, 0);
  _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
  t.done();
});
done();