[Webkit-unassigned] [Bug 74779] New: Drawing an animated image to a canvas via drawImage should draw the first frame

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Dec 16 20:44:46 PST 2011


https://bugs.webkit.org/show_bug.cgi?id=74779

           Summary: Drawing an animated image to a canvas via drawImage
                    should draw the first frame
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://www.whatwg.org/specs/web-apps/current-work/mult
                    ipage/the-canvas-element.html#dom-context-2d-drawimage
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bzbarsky at mit.edu
                CC: mdelaney at apple.com


The spec at http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-drawimage is very clear:

  When the drawImage() method is passed an animated image as its image argument, the user
  agent must use the poster frame of the animation, or, if there is no poster frame, the
  first frame of the animation.

Presto, Trident, and Gecko get this right.

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