Just some simple changes to the buffer conversion shaders. (stride conversion, D32S8 to D24S8)
The first change is using a device local buffer for converted vertex buffers, since they're only read/written on the GPU. These paths don't trigger on NVIDIA, but if you force them to use it demonstrates the full extent writing to host owned memory from compute absolutely destroys them. AMD GPUs are less heavily affected by this issue, but since the game in question was writing 230MB from compute, I imagine it should have some effect.
The second change is allowing the buffer conversion shaders to scale their work group count. While dividing the work between 32 invocations works OK for M1 macs, it's not so great for anything with more cores like AMD GPUs, which should be able to do a lot more parallel copies. Now, it scales by roughly 100 elements per invocation.
Some stride change cases could be improved further by either limiting vertex buffer size somehow (reading the index buffer could help, but is always risky) or only updating regions that changed, rather than invalidating the whole thing.
* WIP texture pre-flush
Improve performance of TextureView GetData to buffer
Fix copy/sync ordering
Fix minor bug
Make this actually work
WIP host mapping stuff
* Fix usage flags
* message
* Cleanup 1
* Fix rebase
* Fix
* Improve pre-flush rules
* Fix pre-flush
* A lot of cleanup
* Use the host memory bits
* Select the correct memory type
* Cleanup TextureGroupHandle
* Missing comment
* Remove debugging logs
* Revert BufferHandle _value access modifier
* One interrupt action at a time.
* Support D32S8 to D24S8 conversion, safeguards
* Interrupt cannot happen in sync handle's lock
Waitable needs to be checked twice now, but this should stop it from deadlocking.
* Remove unused using
* Address some feedback
* Address feedback
* Address more feedback
* Address more feedback
* Improve sync rules
Should allow for faster sync in some cases.
