2d.imageData.get.source.outside.html (4374B)
1 <!DOCTYPE html> 2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> 3 <meta charset="UTF-8"> 4 <title>OffscreenCanvas test: 2d.imageData.get.source.outside</title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/html/canvas/resources/canvas-tests.js"></script> 8 9 <h1>2d.imageData.get.source.outside</h1> 10 <p class="desc">getImageData() returns transparent black outside the canvas</p> 11 12 13 <script> 14 var t = async_test("getImageData() returns transparent black outside the canvas"); 15 var t_pass = t.done.bind(t); 16 var t_fail = t.step_func(function(reason) { 17 throw reason; 18 }); 19 t.step(function() { 20 21 var canvas = new OffscreenCanvas(100, 50); 22 var ctx = canvas.getContext('2d'); 23 24 ctx.fillStyle = '#08f'; 25 ctx.fillRect(0, 0, 100, 50); 26 27 var imgdata1 = ctx.getImageData(-10, 5, 1, 1); 28 _assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0"); 29 _assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0"); 30 _assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0"); 31 _assertSame(imgdata1.data[3], 0, "imgdata1.data[\""+(3)+"\"]", "0"); 32 33 var imgdata2 = ctx.getImageData(10, -5, 1, 1); 34 _assertSame(imgdata2.data[0], 0, "imgdata2.data[\""+(0)+"\"]", "0"); 35 _assertSame(imgdata2.data[1], 0, "imgdata2.data[\""+(1)+"\"]", "0"); 36 _assertSame(imgdata2.data[2], 0, "imgdata2.data[\""+(2)+"\"]", "0"); 37 _assertSame(imgdata2.data[3], 0, "imgdata2.data[\""+(3)+"\"]", "0"); 38 39 var imgdata3 = ctx.getImageData(200, 5, 1, 1); 40 _assertSame(imgdata3.data[0], 0, "imgdata3.data[\""+(0)+"\"]", "0"); 41 _assertSame(imgdata3.data[1], 0, "imgdata3.data[\""+(1)+"\"]", "0"); 42 _assertSame(imgdata3.data[2], 0, "imgdata3.data[\""+(2)+"\"]", "0"); 43 _assertSame(imgdata3.data[3], 0, "imgdata3.data[\""+(3)+"\"]", "0"); 44 45 var imgdata4 = ctx.getImageData(10, 60, 1, 1); 46 _assertSame(imgdata4.data[0], 0, "imgdata4.data[\""+(0)+"\"]", "0"); 47 _assertSame(imgdata4.data[1], 0, "imgdata4.data[\""+(1)+"\"]", "0"); 48 _assertSame(imgdata4.data[2], 0, "imgdata4.data[\""+(2)+"\"]", "0"); 49 _assertSame(imgdata4.data[3], 0, "imgdata4.data[\""+(3)+"\"]", "0"); 50 51 var imgdata5 = ctx.getImageData(100, 10, 1, 1); 52 _assertSame(imgdata5.data[0], 0, "imgdata5.data[\""+(0)+"\"]", "0"); 53 _assertSame(imgdata5.data[1], 0, "imgdata5.data[\""+(1)+"\"]", "0"); 54 _assertSame(imgdata5.data[2], 0, "imgdata5.data[\""+(2)+"\"]", "0"); 55 _assertSame(imgdata5.data[3], 0, "imgdata5.data[\""+(3)+"\"]", "0"); 56 57 var imgdata6 = ctx.getImageData(0, 10, 1, 1); 58 _assertSame(imgdata6.data[0], 0, "imgdata6.data[\""+(0)+"\"]", "0"); 59 _assertSame(imgdata6.data[1], 136, "imgdata6.data[\""+(1)+"\"]", "136"); 60 _assertSame(imgdata6.data[2], 255, "imgdata6.data[\""+(2)+"\"]", "255"); 61 _assertSame(imgdata6.data[3], 255, "imgdata6.data[\""+(3)+"\"]", "255"); 62 63 var imgdata7 = ctx.getImageData(-10, 10, 20, 20); 64 _assertSame(imgdata7.data[ 0*4+0], 0, "imgdata7.data[ 0*4+0]", "0"); 65 _assertSame(imgdata7.data[ 0*4+1], 0, "imgdata7.data[ 0*4+1]", "0"); 66 _assertSame(imgdata7.data[ 0*4+2], 0, "imgdata7.data[ 0*4+2]", "0"); 67 _assertSame(imgdata7.data[ 0*4+3], 0, "imgdata7.data[ 0*4+3]", "0"); 68 _assertSame(imgdata7.data[ 9*4+0], 0, "imgdata7.data[ 9*4+0]", "0"); 69 _assertSame(imgdata7.data[ 9*4+1], 0, "imgdata7.data[ 9*4+1]", "0"); 70 _assertSame(imgdata7.data[ 9*4+2], 0, "imgdata7.data[ 9*4+2]", "0"); 71 _assertSame(imgdata7.data[ 9*4+3], 0, "imgdata7.data[ 9*4+3]", "0"); 72 _assertSame(imgdata7.data[10*4+0], 0, "imgdata7.data[10*4+0]", "0"); 73 _assertSame(imgdata7.data[10*4+1], 136, "imgdata7.data[10*4+1]", "136"); 74 _assertSame(imgdata7.data[10*4+2], 255, "imgdata7.data[10*4+2]", "255"); 75 _assertSame(imgdata7.data[10*4+3], 255, "imgdata7.data[10*4+3]", "255"); 76 _assertSame(imgdata7.data[19*4+0], 0, "imgdata7.data[19*4+0]", "0"); 77 _assertSame(imgdata7.data[19*4+1], 136, "imgdata7.data[19*4+1]", "136"); 78 _assertSame(imgdata7.data[19*4+2], 255, "imgdata7.data[19*4+2]", "255"); 79 _assertSame(imgdata7.data[19*4+3], 255, "imgdata7.data[19*4+3]", "255"); 80 _assertSame(imgdata7.data[20*4+0], 0, "imgdata7.data[20*4+0]", "0"); 81 _assertSame(imgdata7.data[20*4+1], 0, "imgdata7.data[20*4+1]", "0"); 82 _assertSame(imgdata7.data[20*4+2], 0, "imgdata7.data[20*4+2]", "0"); 83 _assertSame(imgdata7.data[20*4+3], 0, "imgdata7.data[20*4+3]", "0"); 84 t.done(); 85 86 }); 87 </script>