2d.composite.globalAlpha.canvaspattern.worker.js (979B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.composite.globalAlpha.canvaspattern 3 // Description: 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test(""); 10 var t_pass = t.done.bind(t); 11 var t_fail = t.step_func(function(reason) { 12 throw reason; 13 }); 14 t.step(function() { 15 16 var canvas = new OffscreenCanvas(100, 50); 17 var ctx = canvas.getContext('2d'); 18 19 var offscreenCanvas2 = new OffscreenCanvas(100, 50); 20 var ctx2 = offscreenCanvas2.getContext('2d'); 21 ctx2.fillStyle = '#f00'; 22 ctx2.fillRect(0, 0, 100, 50); 23 ctx.fillStyle = '#0f0'; 24 ctx.fillRect(0, 0, 100, 50); 25 ctx.fillStyle = ctx.createPattern(offscreenCanvas2, 'no-repeat'); 26 // Avoiding any potential alpha = 0 optimisations. 27 ctx.globalAlpha = 0.01; 28 ctx.fillRect(0, 0, 100, 50); 29 _assertPixelApprox(canvas, 50,25, 2,253,0,255, 2); 30 t.done(); 31 }); 32 done();