* 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.
* Move support buffer update out of the backends
* Fix render scale init and remove redundant state from SupportBufferUpdater
* Stop passing texture scale to the backends
* XML docs for SupportBufferUpdater
* 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
* Introduce ResourceLayout
* Part 1: Use new ResourceSegments array on UpdateAndBind
* Part 2: Use ResourceLayout to build PipelineLayout
* Delete old code
* XML docs
* Fix shader cache load NRE
* Fix typo
