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haikuwebkit/LayoutTests/compositing/backing/backing-store-attachment-wi...

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The image is flashing if falls out and has an animation transform: rotate https://bugs.webkit.org/show_bug.cgi?id=203613 Reviewed by Antti Koivisto. Source/WebCore: Code added in r218735 that maps the animation extent through the current animating transform worked for translations, but not rotation where anchor point matters. This matrix needs to take anchor point into account. Shared some code that applies anchor point to a matrix. Test: compositing/backing/backing-store-attachment-with-rotation.html * platform/graphics/ca/GraphicsLayerCA.cpp: (WebCore::GraphicsLayerCA::layerTransform const): (WebCore::GraphicsLayerCA::transformByApplyingAnchorPoint const): (WebCore::GraphicsLayerCA::setVisibleAndCoverageRects): * platform/graphics/ca/GraphicsLayerCA.h: LayoutTests: * compositing/backing/backing-store-attachment-with-rotation-expected.txt: Added. * compositing/backing/backing-store-attachment-with-rotation.html: Added. Canonical link: https://commits.webkit.org/217526@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@252486 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2019-11-15 16:58:59 +00:00
top left
(GraphicsLayer
(anchor 0.00 0.00)
(bounds 950.00 600.00)
(backingStoreAttached 1)
(children 1
(GraphicsLayer
(bounds 950.00 600.00)
(contentsOpaque 1)
(backingStoreAttached 1)
(children 1
(GraphicsLayer
(position 550.00 13.00)
(bounds 400.00 400.00)
(contentsOpaque 1)
(drawsContent 1)
(backingStoreAttached 1)
)
)
)
)
)