Geoffrey McRae f3155647d2 [client] wayland: serialize surface commits with EGL swaps
NVIDIA's Wayland EGL implementation sets explicit-sync acquire and
release points while presenting a frame. The requests emitted by
eglSwapBuffers and its final surface commit must be treated as one
logical transaction.

The pointer-warp path can commit the main surface from the input
thread while the render thread is inside eglSwapBuffers. If this
occurs between the explicit-sync requests, the cursor commit applies
incomplete pending state and the compositor disconnects the client
with:

  explicit sync is used, but no release point is set

Add a surface lock and hold it across EGL presentation. Use the same
lock for direct commits, frame callback registration, and
pointer-constraint updates, replacing the narrower confinement lock.
This prevents another thread from splitting the EGL transaction and
removes the need for __NV_DISABLE_EXPLICIT_SYNC=1.
2026-07-30 11:09:07 +10:00
2017-12-14 22:22:44 +11:00
2026-05-31 15:13:57 +10:00
2026-01-17 12:43:10 +11:00
2018-05-31 13:28:36 +10:00
2017-10-31 19:07:16 +11:00

Looking Glass

An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.

Documentation

IMPORTANT

This project contains submodules that must be checked out if building from the git repository! If you are not a developer and just want to compile Looking Glass, please download the source archive from the website instead:

https://looking-glass.io/downloads

Source code for the documentation can be found in the /doc directory.

You may view this locally as HTML by running make html with python3-sphinx and python3-sphinx-rtd-theme installed.

Description
An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.
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