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Claude
28a25108c6
Lepton's Vulkan driver has no external memory or sync fd extensions, so the Steam Frame gets a native SteamOS build instead. Its backend is the PC's: OpenXR creates Dawn's own Vulkan instance and device, and the eyes are copied into the swapchain on Dawn's queue, with nothing shared between devices. - openxr_vulkan_win32 and Aurora's vulkan_win32_interop now compile on desktop Linux. Dawn links statically there, so the bridge calls the patched package's hooks directly, and exists only when the package's aurora-dawn.json declares the Vulkan hook ABI (AuroraDawnProvider turns AuroraVulkanAbi into AURORA_DAWN_VULKAN_HOOKS); a stock Dawn keeps the stubs and VR falls back to the desktop. - openxr_integration.cpp gains a Linux branch: XR_KHR_vulkan_enable2, the timespec clock, refresh rate, performance level, the Frame controllers and eye gaze; fragment density maps are requested on Linux as on the Quest (fdm.cpp and gpu.cpp, AURORA_FDM=0/1 overrides). - Controller motion uses XR_KHR_convert_timespec_time on any Linux. - CMake: Vulkan headers are fetched for Linux OpenXR builds, the headset option is MKW_HEADSET on Android and Linux, and Linux aarch64 builds take MKW_LINUX_CPU (cortex-x4 for the Steam Frame, else native). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019HBRGKTE1GnN2ah8gcZKr3