| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.shadow.alpha.4</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/2dcontext/resources/canvas-tests.js"></script> |
| |
| <h1>2d.shadow.alpha.4</h1> |
| <p class="desc">Shadows with alpha components are correctly affected by globalAlpha</p> |
| |
| |
| <script> |
| var t = async_test("Shadows with alpha components are correctly affected by globalAlpha"); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| ctx.fillStyle = '#f00'; |
| ctx.fillRect(0, 0, 100, 50); |
| ctx.fillStyle = '#f00'; // (work around broken Firefox globalAlpha caching) |
| ctx.shadowColor = 'rgba(0, 0, 255, 0.707)'; |
| ctx.shadowOffsetY = 50; |
| ctx.globalAlpha = 0.707; |
| ctx.fillRect(0, -50, 100, 50); |
| _assertPixelApprox(offscreenCanvas, 50,25, 127,0,127,255, "50,25", "127,0,127,255", 2); |
| |
| t.done(); |
| |
| }); |
| </script> |
