tor-browser

The Tor Browser
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2d.imageData.put.dirty.outside.html (1569B)


      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.dirty.outside</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.dirty.outside</h1>
     10 <p class="desc">putImageData() handles dirty rectangles outside the canvas correctly</p>
     11 
     12 
     13 <script>
     14 var t = async_test("putImageData() handles dirty rectangles outside the canvas correctly");
     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  ctx.fillStyle = '#f00';
     25  ctx.fillRect(0, 0, 100, 50)
     26 
     27  var imgdata = ctx.getImageData(0, 0, 100, 50);
     28 
     29  ctx.fillStyle = '#0f0';
     30  ctx.fillRect(0, 0, 100, 50)
     31 
     32  ctx.putImageData(imgdata, 100, 20, 20, 20, -20, -20);
     33  ctx.putImageData(imgdata, 200, 200, 0, 0, 100, 50);
     34  ctx.putImageData(imgdata, 40, 20, -30, -20, 30, 20);
     35  ctx.putImageData(imgdata, -30, 20, 0, 0, 30, 20);
     36 
     37  _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
     38  _assertPixelApprox(canvas, 98,15, 0,255,0,255, 2);
     39  _assertPixelApprox(canvas, 98,25, 0,255,0,255, 2);
     40  _assertPixelApprox(canvas, 98,45, 0,255,0,255, 2);
     41  _assertPixelApprox(canvas, 1,5, 0,255,0,255, 2);
     42  _assertPixelApprox(canvas, 1,25, 0,255,0,255, 2);
     43  _assertPixelApprox(canvas, 1,45, 0,255,0,255, 2);
     44  t.done();
     45 
     46 });
     47 </script>