[Webkit-unassigned] [Bug 197002] New: Defer rendering in pinch to zoom

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 17 01:57:00 PDT 2019


https://bugs.webkit.org/show_bug.cgi?id=197002

            Bug ID: 197002
           Summary: Defer rendering in pinch to zoom
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: raffaele.tranquillini at gmail.com
                CC: bugs-noreply at webkitgtk.org

Pinch to zoom currently renders content while the gesture is being performed, at every single step, making it laggy on mildly complex pages. The rendering should probably be deferred or triggered in larger zoom "steps" while being combined with cached and scaled previous rendering buffers. Does Safari handle this differently than on Gtk? It looks way smoother even on less powerful CPUs.

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