KhronosGroup/OpenXR-SDK release-1.0.16

OpenXR SDK 1.0.16

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nupkg signed by Ryan Pavlik, key fingerprint F029455EAB70F520FF4A03BD7F534CD56F00321E

See https://github.com/KhronosGroup/OpenXR-SDK-Source/releases/ for additional release artifacts.

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)