tor-browser

The Tor Browser
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2d.imageData.put.cross.html (1145B)


      1 <!DOCTYPE html>
      2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
      3 <meta charset="UTF-8">
      4 <title>OffscreenCanvas test: 2d.imageData.put.cross</title>
      5 <script src="/resources/testharness.js"></script>
      6 <script src="/resources/testharnessreport.js"></script>
      7 <script src="/html/canvas/resources/canvas-tests.js"></script>
      8 
      9 <h1>2d.imageData.put.cross</h1>
     10 <p class="desc">putImageData() accepts image data got from a different canvas</p>
     11 
     12 
     13 <script>
     14 var t = async_test("putImageData() accepts image data got from a different canvas");
     15 var t_pass = t.done.bind(t);
     16 var t_fail = t.step_func(function(reason) {
     17    throw reason;
     18 });
     19 t.step(function() {
     20 
     21  var canvas = new OffscreenCanvas(100, 50);
     22  var ctx = canvas.getContext('2d');
     23 
     24  var offscreenCanvas2 = new OffscreenCanvas(100, 50);
     25  var ctx2 = offscreenCanvas2.getContext('2d');
     26  ctx2.fillStyle = '#0f0';
     27  ctx2.fillRect(0, 0, 100, 50)
     28  var imgdata = ctx2.getImageData(0, 0, 100, 50);
     29  ctx.fillStyle = '#f00';
     30  ctx.fillRect(0, 0, 100, 50)
     31  ctx.putImageData(imgdata, 0, 0);
     32  _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
     33  t.done();
     34 
     35 });
     36 </script>