haikuwebkit/ManualTests/animated-gif-dispose-backgr...

<html>
<body>
    <p>Animated gif with background dispose method. Animation frames live behind their rects filled with transparent pixels.</p>
    <img src="./resources/dispose-background.gif" />
</body>
</html>
Gif: zero filling should use memset instead of setRGBA for every pixel https://bugs.webkit.org/show_bug.cgi?id=118350 Patch by Balazs Kelemen <b.kelemen@samsung.com> on 2013-07-03 Reviewed by Allan Sandfeld Jensen. No new tests. Actually it is not covered by existing tests. Surprisingly we haven't got pixel tests for animated images. Given that this patch is pretty trivial I don't think it's worth the cost to start introducing such tests. I added a manual test: animated-gif-dispose-background.html. GIFImageDecoder::initializeFrameBuffer use a loop to fill a subrect with tranparent pixels. This is extremely ineffecient. The use case for this code path is not frequent on the web but it's still better to fix it. * platform/image-decoders/ImageDecoder.cpp: (WebCore::ImageFrame::zeroFillFrameRect): * platform/image-decoders/ImageDecoder.h: * platform/image-decoders/gif/GIFImageDecoder.cpp: (WebCore::GIFImageDecoder::initFrameBuffer): Fixed indentation in addition. Canonical link: https://commits.webkit.org/136360@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@152352 268f45cc-cd09-0410-ab3c-d52691b4dbfc 2013-07-03 13:54:45 +00:00			`<html>`
			`<body>`
			`<p>Animated gif with background dispose method. Animation frames live behind their rects filled with transparent pixels.</p>`
			`<img src="./resources/dispose-background.gif" />`
			`</body>`
			`</html>`