2d.imageData.get.order.rows.worker.js (1074B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.imageData.get.order.rows 3 // Description:getImageData() returns topmost rows first 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("getImageData() returns topmost rows first"); 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 ctx.fillStyle = '#fff'; 20 ctx.fillRect(0, 0, 100, 50); 21 ctx.fillStyle = '#000'; 22 ctx.fillRect(0, 0, 100, 2); 23 var imgdata = ctx.getImageData(0, 0, 10, 10); 24 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 25 _assertSame(imgdata.data[Math.floor(imgdata.width/2*4)], 0, "imgdata.data[Math.floor(imgdata.width/2*4)]", "0"); 26 _assertSame(imgdata.data[(imgdata.height/2)*imgdata.width*4], 255, "imgdata.data[(imgdata.height/2)*imgdata.width*4]", "255"); 27 t.done(); 28 }); 29 done();