[Webkit-unassigned] [Bug 106796] New: [TexMap] Animated CSS shaders fail or crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106796

           Summary: [TexMap] Animated CSS shaders fail or crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: allan.jensen at digia.com


If custom CSS filter aka CSS shaders are used together with animations, they will fail to work or crash.

The problem appears to be caused by BitmapTextureImageBuffer trying to build a FilterEffectRenderer and passing a null pointer RenderObject. This will work for all other filters than custom ones. In custom ones it will fail to build a valid filter, which then causes FilterEffectRenderer::apply() to crash.

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