[Webkit-unassigned] [Bug 160617] New: REGRESSION (r203378): [iOS] The PDF image is rendered stretched if a sub image of it is cached first

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160617

            Bug ID: 160617
           Summary: REGRESSION (r203378): [iOS] The PDF image is rendered
                    stretched if a sub image of it is cached first
    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

r203378 made it possible to cache only a sub-image of the PDF first and then draw this sub-image to the destination context. What was left is fixing the source and destination rectangles when drawing from the PDF to the cached image and when drawing from the cached image to the destination context. Mostly the old code, which was using the whole image rectangle for both srcRect and dstRect, were left as it was before r203378.

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