| // DO NOT EDIT! This test has been generated by tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.composite.globalAlpha.canvas |
| // Description: |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/2dcontext/resources/canvas-tests.js"); |
| |
| var t = async_test(""); |
| 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'); |
| |
| var offscreenCanvas2 = new OffscreenCanvas(100, 50); |
| var ctx2 = offscreenCanvas2.getContext('2d'); |
| ctx2.fillStyle = '#f00'; |
| ctx2.fillRect(0, 0, 100, 50); |
| ctx.fillStyle = '#0f0'; |
| ctx.fillRect(0, 0, 100, 50); |
| ctx.globalAlpha = 0.01; // avoid any potential alpha=0 optimisations |
| ctx.drawImage(offscreenCanvas2, 0, 0); |
| _assertPixelApprox(offscreenCanvas, 50,25, 2,253,0,255, "50,25", "2,253,0,255", 2); |
| t.done(); |
| |
| }); |
| done(); |