| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Mon, 04 Oct 2010 01:32:07 +0300 | |
| changeset 2 | 303757a437d3 |
| parent 0 | 4f2f89ce4247 |
| permissions | -rw-r--r-- |
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" |
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"http://www.w3.org/TR/html4/loose.dtd"> |
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<html lang="en"> |
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<head> |
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
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<title>Checking for simple image layer optimisation</title> |
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<style type="text/css" media="screen"> |
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img {
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float: left; |
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width: 150px; |
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height: 150px; |
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} |
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p {
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clear: both; |
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margin: 1em 2em; |
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height: 180px; |
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} |
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img {
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-webkit-transform: rotate3d(0, 0, 1, 0); |
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} |
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</style> |
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</head> |
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<body> |
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<h1>Image optimisation in layers</h1> |
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<p style="height: auto"> |
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In order to run this test you should enable the debugging options that indicate |
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what type of compositing layer is being used. |
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</p> |
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<pre> |
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defaults write com.apple.Safari WebCoreLayerRepaintCounter -bool yes |
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defaults write com.apple.Safari WebCoreLayerBorders -bool yes |
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</pre> |
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<p style="height: auto"> |
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Directly composited image layers will have a yellow border and no repaint counter. |
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</p> |
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<p> |
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<img src="resources/simple_image.png"> |
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Basic image - no style - can be directly composited |
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</p> |
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<p> |
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<img src="resources/simple_image.png" style="border: 5px solid blue;"> |
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5px blue border - can NOT be directly composited |
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</p> |
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<p> |
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<img src="resources/simple_image.png" style="margin: 10px 20px;"> |
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margin - can NOT be directly composited |
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</p> |
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<p> |
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<img src="resources/simple_image.png" style="background-color: grey;"> |
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solid background - can be directly composited |
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</p> |
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<p> |
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<img src="resources/simple_image.png" style="background: orange url(resources/simple_image.png) -50px -50px;"> |
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background image - can NOT be directly composited |
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</p> |
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<p> |
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<img src="resources/simple_image.png" style="-webkit-transform: rotate3d(0, 0, 1, 10deg);"> |
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rotated but otherwise no style - can be directly composited |
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</p> |
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</body> |
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</html> |