OpenXR SDK 1.0.31 (2023-10-18)

This release features two new vendor extensions and minor extension XML
revisions, in addition to compatibility and logging improvements in the
software.

• Registry
  • Extension reservation: Reserve extensions for NVIDIA.
    (internal MR 2952)
  • Extension reservation: Reserve extensions for Meta.
    (internal MR 2959)
  • Extension reservation: Reserve extensions for Android.
    (internal MR 2966)
  • Extension reservation: Reserve an extension for XR_KHR_egl_enable.
    (internal MR 2982)
  • New vendor extension: XR_MSFT_scene_marker
    (internal MR 2601)
  • New vendor extension: XR_ML_user_calibration
    (internal MR 2849)
  • Schematron: Allow chained structs that extend a two-call-idiom struct to carry
    only a *CapacityInput member.
    (internal MR 2892,
    internal issue 2059)
  • XR_FB_render_model: Fix structextends attribute and remove returnedonly
    attribute of XrRenderModelCapabilitiesRequestFB, to match the specification
    prose.
    (internal MR 2765,
    OpenXR-Docs issue 153,
    internal issue 2017)
  • xml: Fixed a few errors in MSFT extensions discovered by Schematron checks.
    (internal MR 2892)
• SDK
  • API Layers: Add logging on API layer negotiation failure.
    (internal MR 2926)
  • Fix: Enable build with clang-cl on Windows through Visual Studio.
    (internal MR 2948)
  • Fix: Remove unused pthread prototypes declaration in _USE_GNU ifdef, fixing
    builds on some systems.
    (internal MR 2981)
  • Fix comment typo in platform utils header.
    (internal MR 2991)
  • gfxwrapper: Add OpenGL 3.3 functions to an internal utility library used by
    hello_xr, shared with the CTS.
    (internal MR 2941)
  • loader: Modify jnipp, used by the loader on Android, to no longer use
    basic_string<> with types that are technically not in the C++ specification
    as permissible, to fix compatibility with an upcoming libc++ update.
    (internal MR 2974,
    internal issue 2094,
    OpenXR-SDK-Source PR 426)
  • loader_test: Refactor to use existing macros for all test to avoid repetition.
    (internal MR 2922)
  • scripts: Small fixes and cleanups
    (internal MR 2998,
    internal MR 2894,
    internal MR 2896)

GitOrigin-RevId: 38114c3ba8eb46d6fafe1761ed08e263ce132237

The Android loader can be found on Maven Central, by adding the following line to your Android app's build.gradle dependencies section:

implementation 'org.khronos.openxr:openxr_loader_for_android:1.0.31'

Alternately, the AAR file (plus signature by the spec editor key and associated POM) are attached to this release.

Other release files are signed by Ryan Pavlik's key, key fingerprint F029455EAB70F520FF4A03BD7F534CD56F00321E.