* Vulkan: Use staging buffer for temporary constants
Helper shaders and post processing effects typically need some parameters to tell them what to do, which we pass via constant buffers that are created and destroyed each time.
This can vary in cost between different Vulkan drivers. It shows up on profiles on mesa and MoltenVK, so it's worth avoiding. Some games only do it once (BlitColor for present), others multiple times. It's also done for post processing filters and FSR upscaling, which creates two buffers.
For mirrors, I added the ability to reserve a range on the staging buffer for use as any type of binding. This PR allows these constant buffers to be instead temporarily allocated on the staging buffer, skipping allocation and buffer management costs entirely.
Two temporary allocations do remain:
- DrawTexture, because it doesn't have access to the command buffer scope
- Index buffer indirect conversion, because one of them is a storage buffer and thus is a little more complicated.
There's a small cost in that the uniform buffer takes up more space due to alignment requirements. At worst that's 256 bytes (on a GTX 1070) but more modern GPUs should have a better time.
Worth testing across different games and post effects to make sure they still work.
* Use temporary buffer for ConvertIndexBufferIndirect
* Simplify alignment passing for now
* Fix shader params length for CopyIncompatibleFormats
* Set data for helpershaders without overlap checks
The data is in the staging buffer, so its usage range is guarded using that.
This prevents a small allocation each time this method is called. This is a top 3 SOH allocation during gameplay in most games, and eliminating it is pretty free.
* Pass MultiRange to BufferManager
* Implement support for multi-range buffers using Vulkan sparse mappings
* Use multi-range for remaining buffers, delete old methods
* Assume that more buffers are contiguous
* Dispose multi-range buffers after they are removed from the list
* Properly init BufferBounds for constant and storage buffers
* Do not try reading zero bytes data from an unmapped address on the shader cache + PR feedback
* Fix misaligned sparse buffer offsets
* Null check can be simplified
* PR feedback
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.
* Initial implementation of buffer mirrors
Generally slower right now, goal is to reduce render passes in games that do inline updates
Fix support buffer mirrors
Reintroduce vertex buffer mirror
Add storage buffer support
Optimisation part 1
More optimisation
Avoid useless data copies.
Remove unused cbIndex stuff
Properly set write flag for storage buffers.
Fix minor issues
Not sure why this was here.
Fix BufferRangeList
Fix some big issues
Align storage buffers rather than getting full buffer as a range
Improves mirrorability of read-only storage buffers
Increase staging buffer size, as it now contains mirrors
Fix some issues with buffers not updating
Fix buffer SetDataUnchecked offset for one of the paths when using mirrors
Fix buffer mirrors interaction with buffer textures
Fix mirror rebinding
Move GetBuffer calls on indirect draws before BeginRenderPass to avoid draws without render pass
Fix mirrors rebase
Fix rebase 2023
* Fix crash when using stale vertex buffer
Similar to `Get` with a size that's too large, just treat it as a clamp.
* Explicitly set support buffer as mirrorable
* Address feedback
* Remove unused fragment of MVK workaround
* Replace logging for staging buffer OOM
* Address format issues
* Address more format issues
* Mini cleanup
* Address more things
* Rename BufferRangeList
* Support bounding range for ClearMirrors and UploadPendingData
* Add maximum size for vertex buffer mirrors
* Enable index buffer mirrors
Enabled on all platforms for the IbStreamer.
* Feedback
* Remove mystery BufferCache change
Probably macos related?
* Fix mirrors not creating when staging buffer is empty.
* Change log level to debug
* dotnet format style --severity info
Some changes were manually reverted.
* dotnet format analyzers --serverity info
Some changes have been minimally adapted.
* Restore a few unused methods and variables
* Silence dotnet format IDE0060 warnings
* Silence dotnet format IDE0059 warnings
* Address dotnet format CA1816 warnings
* Fix new dotnet-format issues after rebase
* Address most dotnet format whitespace warnings
* Apply dotnet format whitespace formatting
A few of them have been manually reverted and the corresponding warning was silenced
* Format if-blocks correctly
* Another rebase, another dotnet format run
* Run dotnet format whitespace after rebase
* Run dotnet format style after rebase
* Run dotnet format analyzers after rebase
* Run dotnet format style after rebase
* Run dotnet format after rebase and remove unused usings
- analyzers
- style
- whitespace
* Disable 'prefer switch expression' rule
* Add comments to disabled warnings
* Simplify properties and array initialization, Use const when possible, Remove trailing commas
* Run dotnet format after rebase
* Address IDE0251 warnings
* Address a few disabled IDE0060 warnings
* Silence IDE0060 in .editorconfig
* Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas"
This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e.
* dotnet format whitespace after rebase
* First dotnet format pass
* Fix naming rule violations
* Remove redundant code
* Rename generics
* Address review feedback
* Remove SetOrigin
* 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.
