D20621: [effects/screenedge] Support "hint-stretch-borders"

kossebau added a comment.


  In D20621#451747 <https://phabricator.kde.org/D20621#451747>, @davidedmundson wrote:
  
  > At some point it would be good to use the Plasma FrameSVG import. That does tiling and stretching all on the GPU in the render instead of creating giant pixmaps.
  
  
  Yes, that's what I initially tried to use, but I got lost over tracking pixmaps & images & resolution & final blitting and making sure to have the right parts painted, given that presence of any margins hints also brings the question what part of the border should be used for glow... so I escaped into this simple enough solution for now :) as the other code had been growing beyond the existing one in the time I gave myself.
  
  > There's another hint "hint-compose-over-border" which I don't want duplicating, because it's mental.
  
  In the case of the glow the center is also not used, so that hint would not be interesting here, or?
  
  > This fix is definitely an improvement  ++
  
  Thanks for ++ :)

REPOSITORY
  R108 KWin

BRANCH
  gloweffectsupportstretchborderhint

REVISION DETAIL
  https://phabricator.kde.org/D20621

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