[Webkit-unassigned] [Bug 261276] New: CanvasBase constructs the backing store as DisplayList::ImageBuffer in some cases

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261276

            Bug ID: 261276
           Summary: CanvasBase constructs the backing store as
                    DisplayList::ImageBuffer in some cases
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kkinnunen at apple.com
                CC: dino at apple.com

CanvasBase constructs the backing store as DisplayList::ImageBuffer in some cases

- DisplayListDrawingEnabled is about render layer backing stores being display listed
- Context2D cannot support display lists, as putImageData is not supported and getImageData would need to flatten the list
- CanvasRenderingContex2DBase already has a setting to record display lists for CustomPaintCanvas

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