add a way to toggle the h/w composer at runtime

to DISABLE the h/w composer:
  adb shell service call SurfaceFlinger 1008 i32 1

to ENABLE the h/w composer:
  adb shell service call SurfaceFlinger 1008 i32 0

the state is dumped in "dumpsys SurfaceFlinger"

Change-Id: I23e2242d42c6e3fd5261a83332dd900b189e38ce
2 files changed
tree: 93c12ee9f0759d6e529f2c84268cf71f449ad355
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. vpn/
  7. MODULE_LICENSE_APACHE2
  8. NOTICE