[Differential] [Request, 5 lines] D3186: Ensure the complete decoration texture gets repainted on recreation

[graesslin (Martin Gräßlin)]

graesslin created this revision.
graesslin added reviewers: KWin, Plasma.
Restricted Application added a project: KWin.
Restricted Application added subscribers: kwin, plasma-devel.

REVISION SUMMARY
  When the decoration size changes the textures get recreated and need to
  be properly filled. So far KWin used the scheduled repaint geometry in
  this situation. If the decoration didn't schedule the complete geometry
  for repain there will be an empty area in the decoration texture.
  
  This change ensures that the complete texture gets repainted when they
  are recreated. Thus the decoration rendering is more fault tolerant
  towards potential bugs in the decoration. With no-compositing and XRender
  compositing this problem was not reproducable and already fault tolerant,
  so OpenGL just catches up with the other modes.
  
  BUG: 371735
  FIXED-IN: 5.8.3

REPOSITORY
  rKWIN KWin

BRANCH
  fix-decoration-repaint-opengl-5.8

REVISION DETAIL
  https://phabricator.kde.org/D3186

AFFECTED FILES
  scene_opengl.cpp

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

To: graesslin, #kwin, #plasma
Cc: plasma-devel, kwin, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas
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