D25365: [libkwineffects] Restore GL_DRAW_FRAMEBUFFER binding in GLTexture::clear

zzag created this revision.
zzag added a reviewer: KWin.
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REVISION SUMMARY
  If an effect renders a window into an offscreen texture, it's very important
  that the window ends up in the offscreen render target rather than the default
  framebuffer object. However, that might be not the case if the OpenGL
  decoration renderer needs to create a texture atlas since the renderer calls
  GLTexture::clear() method, which might clobber the current GL_DRAW_FRAMEBUFFER
  binding.

REPOSITORY
  R108 KWin

BRANCH
  restore-draw-framebuffer-binding

REVISION DETAIL
  https://phabricator.kde.org/D25365

AFFECTED FILES
  libkwineffects/kwingltexture.cpp
  libkwineffects/kwingltexture.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