[Differential] [Request, 7 lines] D2024: Properly clip the damage region and windows in SceneQPainter

[graesslin (Martin Gräßlin)]

graesslin created this revision.
graesslin added reviewers: KWin, Plasma on Wayland.
Restricted Application added subscribers: kwin, plasma-devel.
Restricted Application added projects: Plasma on Wayland, KWin.

REVISION SUMMARY
  On the framebuffer backend the software rendered cursor was creating
  rendering artifacts due to incorrect clipping. This change ensures that
  in a single screen setup the clipping is performed correctly. For multi
  screen a similar change might be required, but we currently don't have
  any a way to test that as framebuffer only supports one screen and other
  (visual) platforms don't support the software cursor.
  
  CCBUG: 356328

REPOSITORY
  rKWIN KWin

BRANCH
  scene-qpainter-clipping-5.7

REVISION DETAIL
  https://phabricator.kde.org/D2024

AFFECTED FILES
  scene_qpainter.cpp

EMAIL PREFERENCES
  https://phabricator.kde.org/settings/panel/emailpreferences/

To: graesslin, #kwin, #plasma_on_wayland
Cc: plasma-devel, kwin, hardening, jensreuterberg, sebas
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