D25610: [x11] Name client pixmap instead of frame pixmap

zzag created this revision.
zzag added a reviewer: KWin.
Herald added a project: KWin.
Herald added a subscriber: kwin.
zzag requested review of this revision.

REVISION SUMMARY
  Since KDE 4.2 - 4.3 times, KWin doesn't paint window decorations on real
  X11 windows, except when compositing is turned off. This leaves us with
  a problem. The actual client contents is inside a larger texture with no
  useful pixel data around it. This and decoration texture bleeding are
  the main factors that contribute to 1px gap between the server-side
  decoration and client contents with effects such as wobbly windows, and
  zoom.
  
  Another problem with naming frame pixmap instead of client pixmap is
  that it doesn't quite go along with wayland. It only makes more difficult
  to abstract window quad generation in the scene.
  
  Since we don't actually need the frame window when compositing is on,
  there is nothing that holds us from redirecting client windows instead
  of frame windows. This will help us to fix the texture bleeding issue
  and also help us with the ongoing redesign of the scene.

TEST PLAN
  X11 clients are still composited.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D25610

AFFECTED FILES
  composite.cpp
  deleted.cpp
  deleted.h
  effects.cpp
  events.cpp
  geometry.cpp
  plugins/scenes/opengl/scene_opengl.cpp
  scene.cpp
  scene.h
  toplevel.cpp
  toplevel.h
  x11client.cpp
  x11client.h

To: zzag, #kwin
Cc: kwin, LeGast00n, The-Feren-OS-Dev, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart