This fixes a longstanding issue with resolution scale that could result in flickering graphics, typically the first frame something is drawn, or on camera cuts in cutscenes.
The root cause of the issue is that texture scale can be changed when binding textures or images. This typically happens because a texture becomes a view of a larger texture, such as a 400x225 texture becoming a view of a 800x450 texture with two levels. If the 400x225 texture is bound as a render target and has state [1x Undesired], but the storage texture is [2x Scaled], the render target texture's scale is changed to [2x Scaled] to match its new storage. This means the scale changed after the render target state was processed...
This can cause a number of issues. When render target state is processed, texture scales are examined and potentially changed so that they are all the same value. If one texture is scaled, all textures must be. If one texture is blacklisted from scaling, all of them must be. This results in a single resolution scale value being assigned to the TextureManager, which also scales the scissor and viewport values.
If the scale is chosen as 1x, and a later texture binding changes one of the textures to be 2x, the scale in TextureManager no longer matches all of the bound textures. What's worse, the scales in these textures could mismatch entirely. This typically results in the support buffer scale, viewport and scissor being wrong for at least one of the bound render targets.
This PR fixes the issue by re-evaluating render target state if any scale mismatches the expected scale after texture bindings happen. This can actually cause scale to change again, so it must loop back to perform texture bindings again. This can happen as many times as it needs to, but I don't expect it to happen more than once. Problematic bindings will just result in a blacklist, which will propagate to other bound targets.
* GPU: Add HLE macros for popular NVN macros
* Remove non-vector equality check
The case where it's not hardware accelerated will do the check integer-wise anyways.
* Whitespace 😔
* Address Feedback
* Implement vertex and geometry shader conversion to compute
* Call InitializeReservedCounts for compute too
* PR feedback
* Set clip distance mask for geometry and tessellation shaders too
* Transform feedback emulation only for vertex
* GPU: Don't sync/bind index buffer when it's not in use
Sometimes draws don't use an index buffer. It's not necessary to check or upload data for the current index buffer binding as it won't be used.
This fixes Pokemon: Legends Arceus updating a stale index buffer for every draw during its TFB pass, which was all non-indexed draws.
This probably didn't cost much on normal PCs, but it had a large impact on MacOS, which the macos1 release build avoided by mirroring index buffers (the PR currently does not). Needs buffer mirrors still for the rest of the performance.
There are additional cases where index buffers are bound or checked with non-indexed draws on the backend, but this one was straightforward to fix and has the largest impact. Testing is welcome to ensure nothing weird broke.
* Fix case with _rebind
* Fix incorrect fragment origin when YNegate is enabled
* Shader cache version bump
* Do not update support buffer if shader does not read gl_FragCoord
* Pass unscaled viewport size to the support buffer
* 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 IDE0052 warnings
* Address dotnet format CA1816 warnings
* Address or silence dotnet format CA1069 warnings
* Address or silence dotnet format CA2211 warnings
* Address remaining dotnet format analyzer warnings
* Address review comments
* 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
* Run dotnet format whitespace after rebase
* Run dotnet format style after rebase
* Another rebase, another dotnet format run
* 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
* Remove a few unused parameters
* Replace MmeShadowScratch with Array256<uint>
* Simplify properties and array initialization, Use const when possible, Remove trailing commas
* Start working on disabled warnings
* Fix and silence a few dotnet-format warnings again
* Run dotnet format after rebase
* Address IDE0251 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 pass of dotnet format
* Add unsafe dotnet format changes
* Fix typos
* Add trailing commas
* Disable formatting for FormatTable
* Address review feedback
* Implement transform feedback emulation for hardware without native support
* Stop doing some useless buffer updates and account for non-zero base instance
* Reduce redundant updates even more
* Update descriptor init logic to account for ResourceLayout
* Fix transform feedback and storage buffers not being updated in some cases
* Shader cache version bump
* PR feedback
* SetInstancedDrawVertexCount must be always called after UpdateState
* Minor typo
* GPU: Avoid using garbage size for non-cb0 storage buffers
In the depths area, Tears of the Kingdom uses a global memory access with address on constant buffer slot 6. This isn't standard and thus doesn't actually have a size 8 bytes after it, so we were reading back a garbage size that ended up very large (at least in version 1.1.0), and would synchronize a lot of data per frame.
This PR makes storage buffers created from addresses outside constant buffer slot 0 get their size as the number of bytes remaining in the GPU mapping starting at the given virtual address. This should bound the buffer to a reasonable size, and ideally stop it crossing into other memory.
* Limit max size
* Add TODO
* Feedback
* Allow any shader SSBO constant buffer slot and offset
* Fix slot value passed to SetUsedStorageBuffer on fallback case
* Shader cache version
* Ensure that the storage buffer source constant buffer offset is word aligned
* Fix FirstBinding on GetUniformBufferDescriptors
