| // DO NOT EDIT! This test has been generated by tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.shadow.alpha.4 |
| // Description:Shadows with alpha components are correctly affected by globalAlpha |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/2dcontext/resources/canvas-tests.js"); |
| |
| var t = async_test("Shadows with alpha components are correctly affected by globalAlpha"); |
| var t_pass = t.done.bind(t); |
| var t_fail = t.step_func(function(reason) { |
| throw reason; |
| }); |
| 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(); |
| |
| }); |
| done(); |