2d.shadow.alpha.3.html (1031B)
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.shadow.alpha.3</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.shadow.alpha.3</h1> 10 <p class="desc">Shadows are affected by globalAlpha</p> 11 12 13 <script> 14 var t = async_test("Shadows are affected by globalAlpha"); 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 ctx.fillStyle = '#f00'; // (work around broken Firefox globalAlpha caching) 27 ctx.shadowColor = '#00f'; 28 ctx.shadowOffsetY = 50; 29 ctx.globalAlpha = 0.5; 30 ctx.fillRect(0, -50, 100, 50); 31 32 _assertPixelApprox(canvas, 50,25, 127,0,127,255, 2); 33 t.done(); 34 35 }); 36 </script>