2d.imageData.get.clamp.worker.js (1294B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.imageData.get.clamp 3 // Description:getImageData() clamps colors to the range [0, 255] 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("getImageData() clamps colors to the range [0, 255]"); 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 = 'rgb(-100, -200, -300)'; 20 ctx.fillRect(0, 0, 100, 50); 21 ctx.fillStyle = 'rgb(256, 300, 400)'; 22 ctx.fillRect(20, 10, 60, 10); 23 var imgdata1 = ctx.getImageData(10, 5, 1, 1); 24 _assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0"); 25 _assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0"); 26 _assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0"); 27 var imgdata2 = ctx.getImageData(30, 15, 1, 1); 28 _assertSame(imgdata2.data[0], 255, "imgdata2.data[\""+(0)+"\"]", "255"); 29 _assertSame(imgdata2.data[1], 255, "imgdata2.data[\""+(1)+"\"]", "255"); 30 _assertSame(imgdata2.data[2], 255, "imgdata2.data[\""+(2)+"\"]", "255"); 31 t.done(); 32 }); 33 done();