2d.composite.globalAlpha.image.worker.js (757B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.composite.globalAlpha.image 3 // Description: 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 promise_test(async t => { 10 var canvas = new OffscreenCanvas(100, 50); 11 var ctx = canvas.getContext('2d'); 12 13 ctx.fillStyle = '#0f0'; 14 ctx.fillRect(0, 0, 100, 50); 15 // Avoiding any potential alpha = 0 optimisations. 16 ctx.globalAlpha = 0.01; 17 const response = await fetch('/images/red.png'); 18 const blob = await response.blob(); 19 const bitmap = await createImageBitmap(blob); 20 21 ctx.drawImage(bitmap, 0, 0); 22 _assertPixelApprox(canvas, 50,25, 2,253,0,255, 2); 23 }, ""); 24 done();