v1.100.0

• Improvements to head tracking:
  • Reduced sceen drift when watching video on most devices.
• Imposed new restrictions on multiview to protect against flaky GPU drivers.
  • Removed experimental multiview support from non-Daydream Ready devices.
  • Blacklisted support for multiview on Mali-based Android N devices.
• Added gvr_frame_get_hardware_buffer, an advanced API that can be used to obtain the backing AHardwareBuffer reference on Android, when available.
• Added APIs for indicating head tracking state:
  • New events: GVR_EVENT_HEAD_TRACKING_PAUSED and GVR_EVENT_HEAD_TRACKING_RESUMED
  • New property: GVR_PROPERTY_TRACKING_STATUS

v1.80.0

• Performance HUD, a performance overlay enabled for all
  Daydream applications built with Google VR SDK 1.60.0 and above, is now
  available.
• Added APIs related to head tracking with 6 degrees-of-freedom (DoF):
  • gvr_get_current_properties to obtain stateful properties about the
    GVR head tracker and context.
  • gvr_get_head_space_from_start_space_transform to obtain a 6DoF head
    pose when supported (3DoF otherwise).
  • gvr_poll_event to query events related to head tracking.
• The sdk-videoplayer sample now uses an Intent
  to configure DRM instead of a hardcoded Configuration.java file.

v1.70.0

Fixes

• Fixed several graphics memory leaks and artifacts related to asynchronous
  reprojection.

GVR Audio SDK

• Various performance optimizations (SIMD optimized channel de/interleaving,
  reduced memory allocations during runtime, improved early reflection
  rendering).
• Fixed glitch in reverb update when changing from very dry to very wet.
• Improved audio engine performance (multi-threaded sound asset preloading
  and initialization).

GVR Android SDK v1.0.1

Merge branch 'master' of sso://daydream-internal.git.corp.google.com/…