* Add single-threaded config to Filament.
This adds a tick method to Engine and disables a couple components
in Renderer (FrameSkipper and FrameInfoManager).
This will make it easier to support WebGL, and will allow us to remove
some of the command buffer debugging stuff that we added for Vulkan.
* tick => execute, and other review feedback
* Restore the ASSERT for FFence::wait.
* JobSystem now automatically free Jobs
Until now Job allocation used a linear allocator
strategy which required to “reset” the JobSystem
periodically — typically once per frame in
filament.
This is no longer required. We use a pool allocator
now, which doesn’t add much overhead. It does
use a spin-lock for thread-safety though, since
we assume very little contention, this shouldn’t
be a problem.
* Thread Safe Object Pool Allocator
A lock-less, thread-safe object pool allocator,
now used for storing JobSystem’s jobs allocations.
This gets rid of the spin-lock introduced in the
previous cl.
