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CLOSED  Bug report #389  -  Shadow layer is a crasher in Cairo mode
Posted Apr 20, 2013 - updated Jan 05, 2019
icon_info.png This issue has been closed with status "Fixed" and resolution "RESOLVED".
Issue details
  • Type of issue
    Bug report
  • Status
  • Assigned to
    Not assigned to anyone
  • Progress
  • Type of bug
    Not triaged
  • Likelihood
    Not triaged
  • Effect
    Not triaged
  • Posted by
     Carlos López
  • Owned by
    Not owned by anyone
  • Category
  • Resolution
  • Priority
    Must fix before next release
  • Targetted for
    icon_milestones.png 0.64.0
  • Tags
    icon_customdatatype.png shadow crash
  • Difficulty
    icon_customdatatype.png Not determined
Issue description
Something wrong is happening in the implementation of Shadow layer because it is very easy to make it crash.

One noticeable effect that happens is that the Navigator doesn't update when a Shadow layer is present and after a few tweaks it crashes. I've seen that the crash is asynchronous due to it happens in a separated thread. But I've seen one time that there was a cairo complain for not reference on a surface. Looks like the Shadow render in Cairo is broken (a surface or context is not destroyed) and so the threads mixes the painting.
Steps to reproduce this issue
Create some shapes, add a Shadow layer and make the Navigator visible. Then in Cairo mode, modify the origin of the Shadow, and see how it leaves trails on the Navigator (doesn't erase the previous render). Finally it crashes.

Comment posted by
 Carlos López
Apr 27, 11:33
Seems that it is fixed with the Bug report 407 - Navigator blinks when scrubbing the timeline

The issue was updated with the following change(s):
  • This issue has been closed
  • The status has been updated, from New to Fixed.
  • This issue's progression has been updated to 100 percent completed.
  • The resolution has been updated, from Not determined to RESOLVED.