// DO NOT EDIT! This test has been generated by tools/gentest.py. // OffscreenCanvas test in a worker:2d.composite.globalAlpha.canvascopy // Description: // Note: importScripts("/resources/testharness.js"); importScripts("/common/canvas-tests.js"); var t = async_test(""); 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 = '#0f0'; ctx2.fillRect(0, 0, 100, 50); ctx.fillStyle = '#f00'; ctx.fillRect(0, 0, 100, 50); ctx.globalCompositeOperation = 'copy' ctx.globalAlpha = 0.51; ctx.drawImage(offscreenCanvas2, 0, 0); _assertPixelApprox(offscreenCanvas, 50,25, 0,255,0,130, "50,25", "0,255,0,130", 2); t.done(); }); done();