2d.shadow.canvas.alpha.html (1154B)
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.canvas.alpha</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.canvas.alpha</h1> 10 <p class="desc">Shadows are drawn correctly for partially-transparent canvases</p> 11 12 13 <script> 14 var t = async_test("Shadows are drawn correctly for partially-transparent canvases"); 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 canvas2 = new OffscreenCanvas(100, 50); 25 var ctx2 = canvas2.getContext('2d'); 26 ctx2.fillStyle = 'rgba(255, 0, 0, 0.5)'; 27 ctx2.fillRect(0, 0, 100, 50); 28 29 ctx.fillStyle = '#f00'; 30 ctx.fillRect(0, 0, 100, 50); 31 ctx.shadowOffsetY = 50; 32 ctx.shadowColor = '#00f'; 33 ctx.drawImage(canvas2, 0, -50); 34 35 _assertPixelApprox(canvas, 50,25, 127,0,127,255, 2); 36 t.done(); 37 38 }); 39 </script>