[Webkit-unassigned] [Bug 217566] New: [GPU Process] Implement DisplayList::DrawImageBuffer item

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217566

            Bug ID: 217566
           Summary: [GPU Process] Implement DisplayList::DrawImageBuffer
                    item
           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

For in-process drawing there is no need to record drawing an ImageBuffer to a GraphicsContext. The current implementation creates a NativeImage from the ImageBuffer and draw this NativeImage to the GraphicsContext. So we end up recording a DrawNativeImage item instead. But for remote drawing, drawing a RemoteImageBuffer is an expensive operation unless creating the NativeImage and drawing it to the remote client is moved to the GPU Process. To do that, we need to record the RemoteResourceIdentifier of the ImageBuffer and send it to the GPU Process.

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