D18307: Call frameRendered for undamaged Wayland surfaces

ekurzinger created this revision.
Herald added a project: KWin.
Herald edited subscribers, added: kwin; removed: KWin.
ekurzinger requested review of this revision.

REVISION SUMMARY
  Currently, if a Wayland surface registers a frame callback but does not send a damage event, the callback will not be serviced even after KWin has completed a compositing cycle and is therefore ready to render a new frame for the surface. Since some clients, including any using NVIDIA's Wayland EGL implementation, wait for frame events before preparing each frame this behavior can result in hangs if a compositing cycle occurs between registering the frame callback and sending the damage event.
  
  Instead, in accordance with the Wayland specification, frame callbacks should be serviced (via KWayland::Server::SurfaceInterface::frameRendered) for all visible windows - not just those damaged since the last compositing cycle.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D18307

AFFECTED FILES
  composite.cpp

To: ekurzinger
Cc: kwin, jraleigh, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, bwowk, ZrenBot, ngraham, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas, apol, mart