[Webkit-unassigned] [Bug 233613] New: [GPU Process] [Filters 7.4/17] Calculate the result image rectangle of the FilterEffect in filter coordinates

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=233613

            Bug ID: 233613
           Summary: [GPU Process] [Filters 7.4/17] Calculate the result
                    image rectangle of the FilterEffect in filter
                    coordinates
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

The FilterEffect lengths (like the stdDeviation of FEGaussianBlur) are in filter coordinates. Using the filter coordinates will simplify the image rectangle calculations. Only when creating the FilterImage we can convert the image rectangle from filter coordinates to user space coordinates.

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