[Webkit-unassigned] [Bug 82457] New: [BlackBerry] Plumb through GraphicsLayer::contentsOpaque() to the LayerTiler

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=82457

           Summary: [BlackBerry] Plumb through
                    GraphicsLayer::contentsOpaque() to the LayerTiler
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit BlackBerry
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: anilsson at rim.com
                CC: rwlbuis at gmail.com, atreat at rim.com,
                    tonikitoo at webkit.org


The LayerTiler already knows not to turn on GL_BLEND for opaque layers. However, it only ever sets the opaque flag for image layers and color layers, never for content layers.

This was no big deal, because content layers are never opaque, except for the root layer, which we always drew using the BlackBerry::WebKit::BackingStore anyway.

Now, we're going to start using RenderLayerBacking::m_usingTiledCacheLayer = true on the root layer in some situations to make the root layer draw using the LayerRenderer instead of the BackingStore (specifically, in situations where the BackingStore is inactive).

So make sure we plumb through the GraphicsLayer::contentsOpaque() flag all the way to LayerTiler and on to Texture.

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