[Wayland-bugs] [Bug 98766] We need fences support in Wayland compositors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98766

--- Comment #4 from James Jones <jajones at nvidia.com> ---
Linux fence FDs are the obvious first implementation choice, and there are some
vendor-extensions to import/export them from EGLSync.

However, given the existance of Vulkan, EGLStreams, and non-Linux systems, it
would be nice if the solution weren't too tied to the semantics of a specific
type of fence object.  I'd like a Vulkan app to be able to send a cross-process
Vulkan semaphore of some sort to a Vulkan-based compositor, for example, and
preferably to be able to share it up-front and reference it later, rather than
import/export it every frame.

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