Fix various flickering / artifacts

these were due to the "preserve backbuffer" optimization
interfering with hw composer. basically the screen needed
to be redrawn in the areas that move from GL to
overlay.

Bug: 5245513
Change-Id: I9bf75c4fe905f3ef62005e52108b94edae692304
1 file changed
tree: 551770233153e056370d165ca4dd23455e4ce1b4
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. MODULE_LICENSE_APACHE2
  7. NOTICE