** Changed in: canonical-devices-system-image
       Status: Fix Committed => Fix Released

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  [enhancement] Add support for full OpenGL compositing

Status in Canonical System Image:
  Fix Released
Status in Mir:
  Fix Released
Status in mir package in Ubuntu:
  Fix Released

Bug description:
  [enhancement] Add support for full OpenGL compositing.

  libmirserver/platform presently is only compiled to use the "ES"
  subset of OpenGL. This works for mobile devices and many desktop use
  cases but not all.

  There are a few pending reasons to compile for full OpenGL on desktop
  (and/or switch at runtime!):

  1. Qt only understands full OpenGL on desktop. Presently we use a hack
  that makes it call ES functions pretending to be full OpenGL, but this
  hack will fail when we support non-Mesa desktop drivers.

  2. Proprietary desktop drivers sometimes don't support ES.

  3. Proprietary desktop drivers often (last I checked) perform better
  with full OpenGL. Not sure why, probably just driver maturity.

  4. There is evidence (bug 1420574) that ES doesn't work at all on some
  older chipsets and regular OpenGL is required.

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