blob: de04732d727a1ab3450074660283ea167c2db9d8 [file] [log] [blame]
<!DOCTYPE html>
<title>Canvas test: 2d.drawImage.negativedir</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.drawImage.html">drawImage</a>.negativedir</h1>
<p class="desc">Negative dimensions do not affect the direction of the image</p>
<div class="refs">Spec references:
<ul>
<li><a href="../annotated-spec/canvas.html#testrefs.2d.drawImage.direction">2d.drawImage.direction</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.drawImage(document.getElementById('ggrr-256x256.png'), 0, 178, 50, -100, 0, 0, 50, 100);
ctx.drawImage(document.getElementById('ggrr-256x256.png'), 0, 78, 50, 100, 50, 100, 50, -100);
_assertPixelApprox(canvas, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 2);
_assertPixelApprox(canvas, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 2);
_assertPixelApprox(canvas, 98,1, 0,255,0,255, "98,1", "0,255,0,255", 2);
_assertPixelApprox(canvas, 98,48, 0,255,0,255, "98,48", "0,255,0,255", 2);
_assertPixelApprox(canvas, 48,1, 0,255,0,255, "48,1", "0,255,0,255", 2);
_assertPixelApprox(canvas, 48,48, 0,255,0,255, "48,48", "0,255,0,255", 2);
_assertPixelApprox(canvas, 51,1, 0,255,0,255, "51,1", "0,255,0,255", 2);
_assertPixelApprox(canvas, 51,48, 0,255,0,255, "51,48", "0,255,0,255", 2);
_assertPixelApprox(canvas, 25,25, 0,255,0,255, "25,25", "0,255,0,255", 2);
_assertPixelApprox(canvas, 75,25, 0,255,0,255, "75,25", "0,255,0,255", 2);
});
</script>
<img src="../resources/ggrr-256x256.png" id="ggrr-256x256.png" class="resource">