[Webkit-unassigned] [Bug 100086] New: Canvas Accelerated Drawing shows canvas as white while changing tabs for app using putImageData with Ca

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Oct 23 01:16:18 PDT 2012


https://bugs.webkit.org/show_bug.cgi?id=100086

           Summary: Canvas Accelerated Drawing shows canvas as white while
                    changing tabs for app using putImageData with Ca
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.7
            Status: UNCONFIRMED
          Severity: Critical
          Priority: P2
         Component: Canvas
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: gauravverma999 at gmail.com


canvas refresh issues with my HTML5 based virtualization application client which do frequent putImageData for the bitmaps received from server.
When I open the pages in different tabs and navigate between them, Refresh issues are seen. Canvas shows a white page and no drawing.

THIS ISSUE IS RESOLVED IF  I DISABLE FOLLOWING flags in DEBUG Menu
Debug->Drawing/Compositing Flags->
Select "Disable Canvas Accelerated Drawing" and "Disable Full Page Accelerated Drawing in in New Windows"
.
Please see attached screenshots. Will try to create sample web page and update the bug.

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