[Webkit-unassigned] [Bug 222230] New: [GPU Process] Implement the ClipToDrawingCommands item by using begin and end markers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222230

            Bug ID: 222230
           Summary: [GPU Process] Implement the ClipToDrawingCommands item
                    by using begin and end markers
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com
                CC: dino at apple.com

Instead of encoding and decoding the clipping commands as a separate DisplayList, the recorder will insert a "begin" and "end" markers before and after the clipping commands. When replaying the "begin" mark, the relpayer will create a mask ImageBuffer and force using its context for the following items . When replaying the "end" mark, it will clip the original context to the mask ImageBuffer.

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