[Webkit-unassigned] [Bug 76720] New: [chromium] Refactor video drawing to be more data driven

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=76720

           Summary: [chromium] Refactor video drawing to be more data
                    driven
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tdresser at chromium.org
                CC: jamesr at chromium.org, enne at google.com


>From bug 73059:

CCLayerImpl-derived classes all currently handle drawing themselves internally, making direct GL calls.  This is problematic for several reasons.  Testing these layers is tricky because testing must be done at a mock GL interface level rather than at a higher abstract level.  It makes culling closely dependent on how each layer draws.  It also makes some optimizations like layer squashing impossible.

To fix this, CCLayerImpl-derived classes should produce a set of quads to render with some basic information in them about how they are to be drawn.  This list can then be processed and drawn in a more data-driven and abstract manner.


CCVideoLayerImpl still handles drawing internally and should be transitioned to the data-driven approach.
This builds on the initial refactor from bug 76274 and is closely related to bug 76635, which refactors CCCanvasLayerImpl, and bug 76715, which refactors CCPluginLayerImpl.

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