2d.imageData.object.round.worker.js (2010B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.imageData.object.round 3 // Description:ImageData.data rounds numbers with round-to-zero 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("ImageData.data rounds numbers with round-to-zero"); 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 imgdata = ctx.getImageData(0, 0, 10, 10); 20 imgdata.data[0] = 0.499; 21 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 22 imgdata.data[0] = 0.5; 23 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 24 imgdata.data[0] = 0.501; 25 _assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1"); 26 imgdata.data[0] = 1.499; 27 _assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1"); 28 imgdata.data[0] = 1.5; 29 _assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2"); 30 imgdata.data[0] = 1.501; 31 _assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2"); 32 imgdata.data[0] = 2.5; 33 _assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2"); 34 imgdata.data[0] = 3.5; 35 _assertSame(imgdata.data[0], 4, "imgdata.data[\""+(0)+"\"]", "4"); 36 imgdata.data[0] = 252.5; 37 _assertSame(imgdata.data[0], 252, "imgdata.data[\""+(0)+"\"]", "252"); 38 imgdata.data[0] = 253.5; 39 _assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254"); 40 imgdata.data[0] = 254.5; 41 _assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254"); 42 imgdata.data[0] = 256.5; 43 _assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255"); 44 imgdata.data[0] = -0.5; 45 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 46 imgdata.data[0] = -1.5; 47 _assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0"); 48 t.done(); 49 }); 50 done();