[Webkit-unassigned] [Bug 70533] New: [Chromium] Cull occluded tiles in tiled layers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70533

           Summary: [Chromium] Cull occluded tiles in tiled layers
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: danakj at chromium.org


Avoids drawing of fully occluded tiles in CCTiledLayerImpl.

Simple first proof of concept - only considers tiles completely occluded by any single child.  This can be expanded to consider the union of children and siblings.

Currently does not work well as opaque() is true for layers even when it should not be.  That is something that can be addressed in parallel.

I'd like this to be reviewed primarily for the direction it is going.  Is this how we'd like to avoid overdraw within a layer, is it in the right place?

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.