Partially onscreen surfaces are not properly occluded when the on screen part is covered by another surface

[Alexandros Frantzis]

To reproduce run mir_demo_serve_shell with two mir clients. Move one client surface partially off screen, place the other client surface on top, covering the whole on screen part of the bottom client's surface.

Expected: the bottom client receives an occlusion event
Actual: Nothing happens. The bottom client receives an occlusion event only when the top surface covers its surface completely, including the off screen part.

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:mir/devel at revision None, scheduled for release in mir, milestone Unknown

[Launchpad Janitor (janitor)]

This bug was fixed in the package mir - 0.5.0+14.10.20140717-0ubuntu1

---------------
mir (0.5.0+14.10.20140717-0ubuntu1) utopic; urgency=medium

  [ Daniel van Vugt ]
  * New upstream release 0.5.0 (https://launchpad.net/mir/+milestone/0.5.0)
    - mirclient ABI unchanged at 8. Clients do not need rebuilding.
    - mirserver ABI bumped to 23. Servers need rebuilding, but probably don't
      need modification:
      . DefaultServerConfiguration/Cursor API: Cursor interfaces changed, most
        notably CursorImages moved from ::mir::graphics to ::mir::input.
      . DefaultServerConfiguration: New "prompt" API.
      . DefaultServerConfiguration: "clock" member is now static.
      . SessionAuthorizer: New functions.
      . ServerConfiguration: New function added: the_prompt_connector().
    - Enhancements:
      . Add AddressSanitizer cmake build type.
      . frontend, client API, tests: add support for prompt session
        permissions and for client detecting errors.
      . server: Ensure our emergency cleanup handling infrastructure is
        signal-safe.
      . Implement and enable an xcursor based image loader for cursors.
      . Fix warnings raised by the new g++-4.9.
      . shared, scene: Introduce a generic listener collection.
      . MirMotionEvent: Define a struct typedef to allow for
        pointer_coordinates to be used individually.
    - Bugs fixed:
      . Nexus 10 leaks during overlay operations (LP: #1331769)
      . MultiThreadedCompositor deadlocks (LP: #1335311)
      . Intermittent test failure in ClientSurfaceEvents can client query
        orientation (LP: #1335741)
      . Intermittent test failure in ClientSurfaceEvents/OrientationEvents
        (LP: #1335752)
      . Intermittent memory error in ClientSurfaceEvents on
        orientation query (LP: #1335819)
      . mir_unit_tests.EventDistributorTest.* SEGFAULT (LP: #1338902)
      . [regression] Device locks randomly on welcome screen (LP: #1339700)
      . Intermittent deadlock when switching to session with custom display
        config & closing other session (LP: #1340669)
      . Mir cursor has no hotspot setting, assumes (0, 0) (LP: #1189775)
      . clang built mir_unit_tests.ProtobufSocketCommunicatorFD crashes
        intermittently (LP: #1300653)
      . g++-4.9 binary incompatibilities with libraries built with g++-4.8
        (LP: #1329089)
      . [test regression] SurfaceLoop fails sporadically on deleting surfaces
        for a disconnecting client (LP: #1335747)
      . Intermittent test failure ServerShutdown when clients are blocked
        (LP: #1335873)
      . [regression] mir_demo_client_multiwin is displayed with obviously
        wrong colours (LP: #1339471)
      . Partially onscreen surfaces not occluded when covered by another
        surface (LP: #1340078)
      . SurfaceConfigurator::attribute_set always say "unfocused" for focus
        property changes (LP: #1336548)
 -- Ubuntu daily release <email address hidden> Thu, 17 Jul 2014 07:58:53 +0000