[Webkit-unassigned] [Bug 159679] New: Split the pixel data of ImageFrame to a separate class

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=159679

            Bug ID: 159679
           Summary: Split the pixel data of ImageFrame to a separate class
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com

The goal is to have one class for the ImageFrame. Currently we have two very similar implementations: one is defined for non CG ports "ImageFrame", which is defined in /platform/image-decoders/ImageDecoder.h, and the second is "FrameData", which is defined in platform/graphics/BitmapImage.h.

We begin by moving the pixel data manipulation part in ImageFrame into a separate class and then make it optional (allocated on demand). So for the CG case, BitmapPixels object will not be allocated because all the decoding is done by CG.

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