[Webkit-unassigned] [Bug 193419] New: Optimize repaints during RenderTreeUpdater::tearDownRenderers()

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jan 14 16:54:12 PST 2019


            Bug ID: 193419
           Summary: Optimize repaints during
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

RenderTreeUpdater::tearDownRenderers can delete a whole renderer subtree, and in doing so RenderTreeBuilder::detachFromRenderElement() issues a repaint on (almost) all child renderers.

We should be able to optimize this to just repaint the root renderer's visual overflow rect, as long as we correctly handle out-of-flow descendants.

You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20190115/bca8a617/attachment-0001.html>

More information about the webkit-unassigned mailing list