| <!DOCTYPE html> |
| <title>Canvas test: 2d.imageData.get.source.outside</title> |
| <meta name="author" content="Philip Taylor"> |
| <script src="../common/canvas-tests.js"></script> |
| <link rel="stylesheet" href="../common/canvas-tests.css"> |
| <body class="show_output"> |
| |
| <h1><a href="index.2d.html">2d</a>.<a href="index.2d.imageData.html">imageData</a>.<a href="index.2d.imageData.get.html">get</a>.<a href="index.2d.imageData.get.source.html">source</a>.outside</h1> |
| <p class="desc">getImageData() returns transparent black outside the canvas</p> |
| |
| <div class="refs">Spec references: |
| <ul> |
| <li><a href="../annotated-spec/canvas.html#testrefs.2d.imageData.get.basic">2d.imageData.get.basic</a> |
| <li><a href="../annotated-spec/canvas.html#testrefs.2d.imageData.get.outside">2d.imageData.get.outside</a> |
| </ul> |
| </div> |
| |
| <p class="output">Actual output:</p> |
| <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| |
| <ul id="d"></ul> |
| <script> |
| _addTest(function(canvas, ctx) { |
| |
| ctx.fillStyle = '#08f'; |
| ctx.fillRect(0, 0, 100, 50); |
| |
| var imgdata1 = ctx.getImageData(-10, 5, 1, 1); |
| _assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0"); |
| _assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0"); |
| _assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0"); |
| _assertSame(imgdata1.data[3], 0, "imgdata1.data[\""+(3)+"\"]", "0"); |
| |
| var imgdata2 = ctx.getImageData(10, -5, 1, 1); |
| _assertSame(imgdata2.data[0], 0, "imgdata2.data[\""+(0)+"\"]", "0"); |
| _assertSame(imgdata2.data[1], 0, "imgdata2.data[\""+(1)+"\"]", "0"); |
| _assertSame(imgdata2.data[2], 0, "imgdata2.data[\""+(2)+"\"]", "0"); |
| _assertSame(imgdata2.data[3], 0, "imgdata2.data[\""+(3)+"\"]", "0"); |
| |
| var imgdata3 = ctx.getImageData(200, 5, 1, 1); |
| _assertSame(imgdata3.data[0], 0, "imgdata3.data[\""+(0)+"\"]", "0"); |
| _assertSame(imgdata3.data[1], 0, "imgdata3.data[\""+(1)+"\"]", "0"); |
| _assertSame(imgdata3.data[2], 0, "imgdata3.data[\""+(2)+"\"]", "0"); |
| _assertSame(imgdata3.data[3], 0, "imgdata3.data[\""+(3)+"\"]", "0"); |
| |
| var imgdata4 = ctx.getImageData(10, 60, 1, 1); |
| _assertSame(imgdata4.data[0], 0, "imgdata4.data[\""+(0)+"\"]", "0"); |
| _assertSame(imgdata4.data[1], 0, "imgdata4.data[\""+(1)+"\"]", "0"); |
| _assertSame(imgdata4.data[2], 0, "imgdata4.data[\""+(2)+"\"]", "0"); |
| _assertSame(imgdata4.data[3], 0, "imgdata4.data[\""+(3)+"\"]", "0"); |
| |
| var imgdata5 = ctx.getImageData(100, 10, 1, 1); |
| _assertSame(imgdata5.data[0], 0, "imgdata5.data[\""+(0)+"\"]", "0"); |
| _assertSame(imgdata5.data[1], 0, "imgdata5.data[\""+(1)+"\"]", "0"); |
| _assertSame(imgdata5.data[2], 0, "imgdata5.data[\""+(2)+"\"]", "0"); |
| _assertSame(imgdata5.data[3], 0, "imgdata5.data[\""+(3)+"\"]", "0"); |
| |
| var imgdata6 = ctx.getImageData(0, 10, 1, 1); |
| _assertSame(imgdata6.data[0], 0, "imgdata6.data[\""+(0)+"\"]", "0"); |
| _assertSame(imgdata6.data[1], 136, "imgdata6.data[\""+(1)+"\"]", "136"); |
| _assertSame(imgdata6.data[2], 255, "imgdata6.data[\""+(2)+"\"]", "255"); |
| _assertSame(imgdata6.data[3], 255, "imgdata6.data[\""+(3)+"\"]", "255"); |
| |
| var imgdata7 = ctx.getImageData(-10, 10, 20, 20); |
| _assertSame(imgdata7.data[ 0*4+0], 0, "imgdata7.data[ 0*4+0]", "0"); |
| _assertSame(imgdata7.data[ 0*4+1], 0, "imgdata7.data[ 0*4+1]", "0"); |
| _assertSame(imgdata7.data[ 0*4+2], 0, "imgdata7.data[ 0*4+2]", "0"); |
| _assertSame(imgdata7.data[ 0*4+3], 0, "imgdata7.data[ 0*4+3]", "0"); |
| _assertSame(imgdata7.data[ 9*4+0], 0, "imgdata7.data[ 9*4+0]", "0"); |
| _assertSame(imgdata7.data[ 9*4+1], 0, "imgdata7.data[ 9*4+1]", "0"); |
| _assertSame(imgdata7.data[ 9*4+2], 0, "imgdata7.data[ 9*4+2]", "0"); |
| _assertSame(imgdata7.data[ 9*4+3], 0, "imgdata7.data[ 9*4+3]", "0"); |
| _assertSame(imgdata7.data[10*4+0], 0, "imgdata7.data[10*4+0]", "0"); |
| _assertSame(imgdata7.data[10*4+1], 136, "imgdata7.data[10*4+1]", "136"); |
| _assertSame(imgdata7.data[10*4+2], 255, "imgdata7.data[10*4+2]", "255"); |
| _assertSame(imgdata7.data[10*4+3], 255, "imgdata7.data[10*4+3]", "255"); |
| _assertSame(imgdata7.data[19*4+0], 0, "imgdata7.data[19*4+0]", "0"); |
| _assertSame(imgdata7.data[19*4+1], 136, "imgdata7.data[19*4+1]", "136"); |
| _assertSame(imgdata7.data[19*4+2], 255, "imgdata7.data[19*4+2]", "255"); |
| _assertSame(imgdata7.data[19*4+3], 255, "imgdata7.data[19*4+3]", "255"); |
| _assertSame(imgdata7.data[20*4+0], 0, "imgdata7.data[20*4+0]", "0"); |
| _assertSame(imgdata7.data[20*4+1], 0, "imgdata7.data[20*4+1]", "0"); |
| _assertSame(imgdata7.data[20*4+2], 0, "imgdata7.data[20*4+2]", "0"); |
| _assertSame(imgdata7.data[20*4+3], 0, "imgdata7.data[20*4+3]", "0"); |
| |
| |
| }); |
| </script> |
| |
