direct-image-compositing.html [plain text]
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Testing direct image layer optimisation</title>
<style type="text/css" media="screen">
img {
float: left;
width: 150px;
height: 150px;
}
img {
-webkit-transform: rotate3d(0, 0, 1, 0);
}
.test {
float: left;
height: 200px;
width: 260px;
}
</style>
</head>
<body>
<h1>Image optimisation in layers</h1>
<p>
This test exercises direct compositing of images with hardware acceleration. The visual results
using ACCELERATED_COMPOSITING and regular TOT should be identical. Running this test manually with
the correct debug options will show which elements are directly composited. See
<a href="https://bugs.webkit.org/show_bug.cgi?id=23361">https://bugs.webkit.org/show_bug.cgi?id=23361</a>
</p>
<div class="test">
<img src="resources/simple_image.png">
Basic image - no style - can be directly composited
</div>
<div class="test">
<img src="resources/simple_image.png" style="border: 5px solid blue;">
5px blue border - can NOT be directly composited
</div>
<div class="test">
<img src="resources/simple_image.png" style="margin: 5px 5px;">
margin - can NOT be directly composited
</div>
<div class="test">
<img src="resources/simple_image.png" style="background-color: grey;">
solid background - can be directly composited
</div>
<div class="test">
<img src="resources/simple_image.png" style="background: orange url(resources/simple_image.png) -50px -50px;">
background image - can NOT be directly composited
</div>
<div class="test">
<img src="resources/simple_image.png" style="-webkit-transform: rotate3d(0, 0, 1, 10deg);">
rotated but otherwise no style - can be directly composited
</div>
</body>
</html>