* 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.
* Vulkan: Periodically free regions of the staging buffer
There was an edge case where a game could submit tens of thousands of small copies over the course of over half a minute to unique fences. This could result in a large stutter when the staging buffer became full and it tried to check and free thousands of completed fences.
This became visible with some games and mirrors on Windows, as they don't submit any buffer data via the staging buffer, but may submit copies of the support buffer.
This change makes the Vulkan backend check for staging buffer completion on each command buffer submit, so it can't get backed up with 1000s of copies to check.
* Add comment
* 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
