OpenXR SDK (Source) 1.0.16

Windows binaries of the loader, sample apps, and API layers are attached. Zipfile and release tarball are signed by Ryan Pavlik, key fingerprint F029455EAB70F520FF4A03BD7F534CD56F00321E

OpenXR SDK 1.0.16 (2021-05-11)

This release contains an update to define a new error code,
XR_ERROR_RUNTIME_UNAVAILABLE, now returned by the loader at xrCreateInstance
and xrEnumerateInstanceProperties when it cannot find or load a runtime for
some reason. This should be more clear for developers when encountering it, as
well as helpful when troubleshooting errors hit by users. (The
previously-returned error was typically XR_ERROR_INSTANCE_LOST, which is
confusing when returned when trying to create an instance.) This release also
includes a new multi-vendor extension, a new vendor extension, and improved
concurrency handling in the loader, among smaller fixes.

• Registry
  • Add new XR_ERROR_RUNTIME_UNAVAILABLE error code, add
    XR_ERROR_RUNTIME_UNAVAILABLE as a supported error code to xrCreateInstance
    and xrEnumerateInstanceProperties, and remove XR_ERROR_INSTANCE_LOST as a
    supported error code from xrCreateInstance.
    (internal MR 2024,
    internal issue 1552,
    OpenXR-SDK-Source/#177)
  • Add XR_EXT_hand_joint_motion_range multi-vendor extension.
    (internal MR 1995)
  • Add XR_FB_swapchain_update_state vendor extension.
    (internal MR 1997)
  • Fix missing XR_ERROR_INSTANCE_LOST return codes for extension functions in
    XR_EXT_performance_settings, XR_EXT_debug_utils,
    XR_EXT_conformance_automation, and XR_EXT_thermal_query.
    (internal MR 2023,
    OpenXR-Docs/#10,
    internal issue 1256)
  • Reserve extension 166 for working group use.
    (internal MR 2025)
• SDK
  • Loader: Change runtime part to return XR_ERROR_RUNTIME_UNAVAILABLE when
    there is an error loading a runtime.
    (internal MR 2024,
    internal issue 1552,
    OpenXR-SDK-Source/#177)
  • Loader: Simplify in areas where code paths were dead.
    (internal MR 2024)
  • Loader: Improved locking around a few areas of the loader that aren't robust
    against usual concurrent calls.
    (OpenXR-SDK-Source/#252)
  • validation layer: Fix generated code when a protected extension contains a base
    header type.
    (internal MR 1997)