| <!DOCTYPE html> |
| <title>Canvas test: 2d.imageData.put.dirty.rect2</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.put.html">put</a>.<a href="index.2d.imageData.put.dirty.html">dirty</a>.rect2</h1> |
| <p class="desc">putImageData() only modifies areas inside the dirty rectangle, using x and y</p> |
| |
| <div class="refs">Spec references: |
| <ul> |
| <li><a href="../annotated-spec/canvas.html#testrefs.2d.imageData.put.normal">2d.imageData.put.normal</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> |
| <p class="output expectedtext">Expected output:<p><img src="../resources/green-100x50.png" class="output expected" id="expected" alt=""> |
| <ul id="d"></ul> |
| <script> |
| _addTest(function(canvas, ctx) { |
| |
| ctx.fillStyle = '#f00'; |
| ctx.fillRect(0, 0, 100, 50) |
| ctx.fillStyle = '#0f0'; |
| ctx.fillRect(60, 30, 20, 20) |
| |
| var imgdata = ctx.getImageData(0, 0, 100, 50); |
| |
| ctx.fillStyle = '#0f0'; |
| ctx.fillRect(0, 0, 100, 50) |
| ctx.fillStyle = '#f00'; |
| ctx.fillRect(40, 20, 20, 20) |
| ctx.putImageData(imgdata, -20, -10, 60, 30, 20, 20); |
| |
| _assertPixelApprox(canvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 2); |
| _assertPixelApprox(canvas, 35,25, 0,255,0,255, "35,25", "0,255,0,255", 2); |
| _assertPixelApprox(canvas, 65,25, 0,255,0,255, "65,25", "0,255,0,255", 2); |
| _assertPixelApprox(canvas, 50,15, 0,255,0,255, "50,15", "0,255,0,255", 2); |
| _assertPixelApprox(canvas, 50,45, 0,255,0,255, "50,45", "0,255,0,255", 2); |
| |
| |
| }); |
| </script> |
| |
