* GPU: Add fallback when textureGatherOffsets is not supported.
This PR adds a fallback for GPUs or APIs that don't support an equivalent to the method `textureGatherOffsets`, where each of the 4 gathered texels has an individual offset. This is done by reusing the existing code to handle non-const offsets for texture instructions, though it has also been corrected as there were a few implementation issues.
MoltenVK reports support for this capability, and it didn't error when we initially released the MacOS build, but that has since changed. MVK still reports support, but spirv-cross has been fixed in a way that it _attempts_ to use this capability, but the metal compiler errors since it doesn't exist.
Some other fixes:
- textureGatherOffsets emulation has been changed significantly. It now uses 4 texture sample instructions (not gather), calculates a base texel (i=0 j=0) and adds the offsets onto it before converting into a tex coord. The final result is offset into a texel center, so it shouldn't be subject to interpolation, though this isn't perfect and could have some error with floating point formats with linear sampling. It is subject to texture wrap mode as it should be, which is why texelFetch was not used.
- Maybe gather should be used here with component `w` (i=0, j=0), though this multiplies number of texels fetched by 4... The way it was doing this before _was_ wrong_, but doing it right would avoid issues with texel center precision.
- textureGatherOffset (singular) now performs textureGather with the offset applied to the coords, rather than the slower fallback where each texel is fetched individually.
* Increment shader cache version, remove unused arg
* Use base texture size for gather coord offset.
Implicit LOD for gather is not supported.
* Use 4 texture gathers for offsets emulation
Avoids issues with interpolation at cost of performance
(not sure how bad this is)
* 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
#5576 changed where the position was declared, but forgot to add the Invariant declaration to position when the ReducedPrecision flag was enabled. This was causing weird graphical bugs in a bunch of games, mostly to do with mismatching depth between multiple draws of the same geometry.
Maybe the attempt to add it to Position in DeclareInputOrOutput can be removed now, assuming that path is never used.
* Move shuffle handling out of the backend to a transform pass
* Handle subgroup sizes higher than 32
* Stop using the subgroup size control extension
* Make GenerateShuffleFunction static
* Shader cache version bump
* 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
* Stop identifying shader textures with handle and cbuf, use binding instead
* Remove now unused code
* Consider image operations as having accurate type information too
I don't know why that was not the case before
* Fix missing unscale on InsertCoordNormalization, stop calling SetUsageFlagsForTextureQuery when not needed
* Shader cache version bump
* Change get texture methods to return descriptors created from ResourceManager state
This is required to ensure that reserved textures and images will not be bound as a guest texture/image
* Fix BindlessElimination.SetHandle inserting coords at the wrong place
* 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
* Fix regression introduced by 1.1733 on Intel iGPUs
* Should have actually figured the variable, oops.
* maybe something goes wrong here? honestly lost
* Shader cache bump
* Implement Load/Store Local/Shared and Atomic shared using new instructions
* Remove now unused code
* Fix base offset register overwrite
* Fix missing storage buffer set index when generating GLSL for Vulkan
* Shader cache version bump
* Remove more unused code
* Some PR 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
* Implement storage buffer operations using new Load/Store instruction
* Extend GenerateMultiTargetStorageOp to also match access with constant offset, and log and comments
* Remove now unused code
* Catch more complex cases of global memory usage
* Shader cache version bump
* Extend global access elimination to work with more shared memory cases
* Change alignment requirement from 16 bytes to 8 bytes, handle cases where we need more than 16 storage buffers
* Tweak preferencing to catch more cases
* Enable CB0 elimination even when host storage buffer alignment is > 16 (for Intel)
* Fix storage buffer bindings
* Simplify some code
* Shader cache version bump
* Fix typo
* Extend global memory elimination to handle shared memory with multiple possible offsets and local memory
* Add support for VK_EXT_depth_clip_control.
* Code review feedback
Minor formatting
Co-authored-by: gdkchan <gab.dark.100@gmail.com>
* Check .DepthClipControl to make sure the host actually supports the feature.
* Review feedback: remove Vulkan platform switch, relying on QueryHostSupportsDepthClipControl to drive the behaviour - OpenGL returns true, and any future platforms that don't support the [-1, 1] depth mode can return false for the transformation.
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Co-authored-by: gdkchan <gab.dark.100@gmail.com>
* Generate scaling helper functions on IR
* Delete unused code
* Split RewriteTextureSample and move gather bias add to an earlier pass
* Remove using
* Shader cache version bump
* 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
* 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
