[gl] Rewrite blitFromCurrentReadBuffer

- Most eglMakeCurrent calls per frame removed (rest are from the guest OS)
- Client wait sync still necessary (actually even extra ones needed)

Change-Id: I717c924a6efa127c4cff88c3552f1463e2622f7c
1 file changed
tree: 9a3ef11bd6a3e745f819590119ef7c7246f13b38
  1. android/
  2. host/
  3. .gitignore