Commit Graph

248 Commits

Author SHA1 Message Date
gdkchan
2232e4ae87
Vulkan backend (#2518)
* WIP Vulkan implementation

* No need to initialize attributes on the SPIR-V backend anymore

* Allow multithreading shaderc and vkCreateShaderModule

You'll only really see the benefit here with threaded-gal or parallel shader cache compile.

Fix shaderc multithreaded changes

Thread safety for shaderc Options constructor

Dunno how they managed to make a constructor not thread safe, but you do you. May avoid some freezes.

* Support multiple levels/layers for blit.

Fixes MK8D when scaled, maybe a few other games. AMD software "safe" blit not supported right now.

* TextureStorage should hold a ref of the foreign storage, otherwise it might be freed while in use

* New depth-stencil blit method for AMD

* Workaround for AMD driver bug

* Fix some tessellation related issues (still doesn't work?)

* Submit command buffer before Texture GetData. (UE4 fix)

* DrawTexture support

* Fix BGRA on OpenGL backend

* Fix rebase build break

* Support format aliasing on SetImage

* Fix uniform buffers being lost when bindings are out of order

* Fix storage buffers being lost when bindings are out of order

(also avoid allocations when changing bindings)

* Use current command buffer for unscaled copy (perf)

Avoids flushing commands and renting a command buffer when fulfilling copy dependencies and when games do unscaled copies.

* Update to .net6

* Update Silk.NET to version 2.10.1

Somehow, massive performance boost. Seems like their vtable for looking up vulkan methods was really slow before.

* Fix PrimitivesGenerated query, disable Transform Feedback queries for now

Lets Splatoon 2 work on nvidia. (mostly)

* Update counter queue to be similar to the OGL one

Fixes softlocks when games had to flush counters.

* Don't throw when ending conditional rendering for now

This should be re-enabled when conditional rendering is enabled on nvidia etc.

* Update findMSB/findLSB to match master's instruction enum

* Fix triangle overlay on SMO, Captain Toad, maybe others?

* Don't make Intel Mesa pay for Intel Windows bugs

* Fix samplers with MinFilter Linear or Nearest (fixes New Super Mario Bros U Deluxe black borders)

* Update Spv.Generator

* Add alpha test emulation on shader (but no shader specialisation yet...)

* Fix R4G4B4A4Unorm texture format permutation

* Validation layers should be enabled for any log level other than None

* Add barriers around vkCmdCopyImage

Write->Read barrier for src image (we want to wait for a write to read it)
Write->Read barrier for dst image (we want to wait for the copy to complete before use)

* Be a bit more careful with texture access flags, since it can be used for anything

* Device local mapping for all buffers

May avoid issues with drivers with NVIDIA on linux/older gpus on windows when using large buffers (?)
Also some performance things and fixes issues with opengl games loading textures weird.

* Cleanup, disable device local buffers for now.

* Add single queue support

Multiqueue seems to be a bit more responsive on NVIDIA. Should fix texture flush on intel. AMD has been forced to single queue for an experiment.

* Fix some validation errors around extended dynamic state

* Remove Intel bug workaround, it was fixed on the latest driver

* Use circular queue for checking consumption on command buffers

Speeds up games that spam command buffers a little. Avoids checking multiple command buffers if multiple are active at once.

* Use SupportBufferUpdater, add single layer flush

* Fix counter queue leak when game decides to use host conditional rendering

* Force device local storage for textures (fixes linux performance)

* Port #3019

* Insert barriers around vkCmdBlitImage (may fix some amd flicker)

* Fix transform feedback on Intel, gl_Position feedback and clears to inexistent depth buffers

* Don't pause transform feedback for multi draw

* Fix draw outside of render pass and missing capability

* Workaround for wrong last attribute on AMD (affects FFVII, STRIKERS1945, probably more)

* Better workaround for AMD vertex buffer size alignment issue

* More instructions + fixes on SPIR-V backend

* Allow custom aspect ratio on Vulkan

* Correct GTK UI status bar positions

* SPIR-V: Functions must always end with a return

* SPIR-V: Fix ImageQuerySizeLod

* SPIR-V: Set DepthReplacing execution mode when FragDepth is modified

* SPIR-V: Implement LoopContinue IR instruction

* SPIR-V: Geometry shader support

* SPIR-V: Use correct binding number on storage buffers array

* Reduce allocations for Spir-v serialization

Passes BinaryWriter instead of the stream to Write and WriteOperand

- Removes creation of BinaryWriter for each instruction
- Removes allocations for literal string

* Some optimizations to Spv.Generator

- Dictionary for lookups of type declarations, constants, extinst
- LiteralInteger internal data format -> ushort
- Deterministic HashCode implementation to avoid spirv result not being the same between runs
- Inline operand list instead of List<T>, falls back to array if many operands. (large performance boost)

TODO: improve instruction allocation, structured program creator, ssa?

* Pool Spv.Generator resources, cache delegates, spv opts

- Pools for Instructions and LiteralIntegers. Can be passed in when creating the generator module.
  - NewInstruction is called instead of new Instruction()
  - Ryujinx SpirvGenerator passes in some pools that are static. The idea is for these to be shared between threads eventually.
- Estimate code size when creating the output MemoryStream
- LiteralInteger pools using ThreadStatic pools that are initialized before and after creation... not sure of a better way since the way these are created is via implicit cast.

Also, cache delegates for Spv.Generator for functions that are passed around to GenerateBinary etc, since passing the function raw creates a delegate on each call.

TODO: update python spv cs generator to make the coregrammar with NewInstruction and the `params` overloads.

* LocalDefMap for Ssa Rewriter

Rather than allocating a large array of all registers for each block in the shader, allocate one array of all registers and clear it between blocks. Reduces allocations in the shader translator.

* SPIR-V: Transform feedback support

* SPIR-V: Fragment shader interlock support (and image coherency)

* SPIR-V: Add early fragment tests support

* SPIR-V: Implement SwizzleAdd, add missing Triangles ExecutionMode for geometry shaders, remove SamplerType field from TextureMeta

* Don't pass depth clip state right now (fix decals)

Explicitly disabling it is incorrect. OpenGL currently automatically disables based on depth clamp, which is the behaviour if this state is omitted.

* Multisampling support

* Multisampling: Use resolve if src samples count > dst samples count

* Multisampling: We can only resolve for unscaled copies

* SPIR-V: Only add FSI exec mode if used.

* SPIR-V: Use ConstantComposite for Texture Offset Vector

Fixes a bunch of freezes with SPIR-V on AMD hardware, and validation errors. Note: Obviously assumes input offsets are constant, which they currently are.

* SPIR-V: Don't OpReturn if we already OpExit'ed

Fixes spir-v parse failure and stack smashing in RADV (obviously you still need bolist)

* SPIR-V: Only use input attribute type for input attributes

Output vertex attributes should always be of type float.

* Multithreaded Pipeline Compilation

* Address some feedback

* Make this 32

* Update topology with GpuAccessorState

* Cleanup for merge (note: disables spir-v)

* Make more robust to shader compilation failure

- Don't freeze when GLSL compilation fails
- Background SPIR-V pipeline compile failure results in skipped draws, similar to GLSL compilation failure.

* Fix Multisampling

* Only update fragment scale count if a vertex texture needs a scale.

Fixes a performance regression introduced by texture scaling in the vertex stage where support buffer updates would be very frequent, even at 1x, if any textures were used on the vertex stage.

This check doesn't exactly look cheap (a flag in the shader stage would probably be preferred), but it is much cheaper than uploading scales in both vulkan and opengl, so it will do for now.

* Use a bitmap to do granular tracking for buffer uploads.

This path is only taken if the much faster check of "is the buffer rented at all" is triggered, so it doesn't actually end up costing too much, and the time saved by not ending render passes (and on gpu for not waiting on barriers) is probably helpful.

Avoids ending render passes to update buffer data (not all the time)
- 140-180 to 35-45 in SMO metro kingdom (these updates are in the UI)
- Very variable 60-150(!) to 16-25 in mario kart 8 (these updates are in the UI)

As well as allowing more data to be preloaded persistently, this will also allow more data to be loaded in the preload buffer, which should be faster as it doesn't need to insert barriers between draws. (and on tbdr, does not need to flush and reload tile memory)

Improves performance in GPU limited scenarios. Should notably improve performance on TBDR gpus. Still a lot more to do here.

* Copy query results after RP ends, rather than ending to copy

We need to end the render pass to get the data (submit command buffer) anyways...

Reduces render passes created in games that use queries.

* Rework Query stuff a bit to avoid render pass end

Tries to reset returned queries in background when possible, rather than ending the render pass.

Still ends render pass when resetting a counter after draws, but maybe that can be solved too. (by just pulling an empty object off the pool?)

* Remove unnecessary lines

Was for testing

* Fix validation error for query reset

Need to think of a better way to do this.

* SPIR-V: Fix SwizzleAdd and some validation errors

* SPIR-V: Implement attribute indexing and StoreAttribute

* SPIR-V: Fix TextureSize for MS and Buffer sampler types

* Fix relaunch issues

* SPIR-V: Implement LogicalExclusiveOr

* SPIR-V: Constant buffer indexing support

* Ignore unsupported attributes rather than throwing (matches current GLSL behaviour)

* SPIR-V: Implement tessellation support

* SPIR-V: Geometry shader passthrough support

* SPIR-V: Implement StoreShader8/16 and StoreStorage8/16

* SPIR-V: Resolution scale support and fix TextureSample multisample with LOD bug

* SPIR-V: Fix field index for scale count

* SPIR-V: Fix another case of wrong field index

* SPIRV/GLSL: More scaling related fixes

* SPIR-V: Fix ImageLoad CompositeExtract component type

* SPIR-V: Workaround for Intel FrontFacing bug

* Enable SPIR-V backend by default

* Allow null samplers (samplers are not required when only using texelFetch to access the texture)

* Fix some validation errors related to texel block view usage flag and invalid image barrier base level

* Use explicit subgroup size if we can (might fix some block flickering on AMD)

* Take componentMask and scissor into account when clearing framebuffer attachments

* Add missing barriers around CmdFillBuffer (fixes Monster Hunter Rise flickering on NVIDIA)

* Use ClampToEdge for Clamp sampler address mode on Vulkan (fixes Hollow Knight)

Clamp is unsupported on Vulkan, but ClampToEdge behaves almost the same. ClampToBorder on the other hand (which was being used before) is pretty different

* Shader specialization for new Vulkan required state (fixes remaining alpha test issues, vertex stretching on AMD on Crash Bandicoot, etc)

* Check if the subgroup size is supported before passing a explicit size

* Only enable ShaderFloat64 if the GPU supports it

* We don't need to recompile shaders if alpha test state changed but alpha test is disabled

* Enable shader cache on Vulkan and implement MultiplyHighS32/U32 on SPIR-V (missed those before)

* Fix pipeline state saving before it is updated.

This should fix a few warnings and potential stutters due to bad pipeline states being saved in the cache. You may need to clear your guest cache.

* Allow null samplers on OpenGL backend

* _unit0Sampler should be set only for binding 0

* Remove unused PipelineConverter format variable (was causing IOR)

* Raise textures limit to 64 on Vulkan

* No need to pack the shader binaries if shader cache is disabled

* Fix backbuffer not being cleared and scissor not being re-enabled on OpenGL

* Do not clear unbound framebuffer color attachments

* Geometry shader passthrough emulation

* Consolidate UpdateDepthMode and GetDepthMode implementation

* Fix A1B5G5R5 texture format and support R4G4 on Vulkan

* Add barrier before use of some modified images

* Report 32 bit query result on AMD windows (smo issue)

* Add texture recompression support (disabled for now)

It recompresses ASTC textures into BC7, which might reduce VRAM usage significantly on games that uses ASTC textures

* Do not report R4G4 format as supported on Vulkan

It was causing mario head to become white on Super Mario 64 (???)

* Improvements to -1 to 1 depth mode.

- Transformation is only applied on the last stage in the vertex pipeline.
- Should fix some issues with geometry and tessellation (hopefully)
- Reading back FragCoord Z on fragment will transform back to -1 to 1.

* Geometry Shader index count from ThreadsPerInputPrimitive

Generally fixes SPIR-V emitting too many triangles, may change games in OpenGL

* Remove gl_FragDepth scaling

This is always 0-1; the other two issues were causing the problems. Fixes regression with Xenoblade.

* Add Gl StencilOp enum values to Vulkan

* Update guest cache to v1.1 (due to specialization state changes)

This will explode your shader cache from earlier vulkan build, but it must be done. 😔

* Vulkan/SPIR-V support for viewport inverse

* Fix typo

* Don't create query pools for unsupported query types

* Return of the Vector Indexing Bug

One day, everyone will get this right.

* Check for transform feedback query support

Sometimes transform feedback is supported without the query type.

* Fix gl_FragCoord.z transformation

FragCoord.z is always in 0-1, even when the real depth range is -1 to 1. Turns out the only bug was geo and tess stage outputs.

Fixes Pokemon Sword/Shield, possibly others.

* Fix Avalonia Rebase

Vulkan is currently not available on Avalonia, but the build does work and you can use opengl.

* Fix headless build

* Add support for BC6 and BC7 decompression, decompress all BC formats if they are not supported by the host

* Fix BCn 4/5 conversion, GetTextureTarget

BCn 4/5 could generate invalid data when a line's size in bytes was not divisible by 4, which both backends expect.

GetTextureTarget was not creating a view with the replacement format.

* Fix dependency

* Fix inverse viewport transform vector type on SPIR-V

* Do not require null descriptors support

* If MultiViewport is not supported, do not try to set more than one viewport/scissor

* Bounds check on bitmap add.

* Flush queries on attachment change rather than program change

Occlusion queries are usually used in a depth only pass so the attachments changing is a better indication of the query block ending.

Write mask changes are also considered since some games do depth only pass by setting 0 write mask on all the colour targets.

* Add support for avalonia (#6)

* add avalonia support

* only lock around skia flush

* addressed review

* cleanup

* add fallback size if avalonia attempts to render but the window size is 0. read desktop scale after enabling dpi check

* fix getting window handle on linux. skip render is size is 0

* Combine non-buffer with buffer image descriptor sets

* Support multisample texture copy with automatic resolve on Vulkan

* Remove old CompileShader methods from the Vulkan backend

* Add minimal pipeline layouts that only contains used bindings

They are used by helper shaders, the intention is avoiding needing to recompile the shaders (from GLSL to SPIR-V) if the bindings changes on the translated guest shaders

* Pre-compile helper shader as SPIR-V, and some fixes

* Remove pre-compiled shaderc binary for Windows as its no longer needed by default

* Workaround RADV crash

Enabling the descriptor indexing extension, even if it is not used, forces the radv driver to use "bolist".

* Use RobustBufferAccess on NVIDIA gpus

Avoids the SMO waterfall triangle on older NVIDIA gpus.

* Implement GPU selector and expose texture recompression on the UI and config

* Fix and enable background compute shader compilation

Also disables warnings from shader cache pipeline misses.

* Fix error due to missing subpass dependency when Attachment Write -> Shader Read barriers are added

* If S8D24 is not supported, use D32FS8

* Ensure all fences are destroyed on dispose

* Pre-allocate arrays up front on DescriptorSetUpdater, allows the removal of some checks

* Add missing clear layer parameter after rebase

* Use selected gpu from config for avalonia (#7)

* use configured device

* address review

* Fix D32S8 copy workaround (AMD)

Fixes water in Pokemon Legends Arceus on AMD GPUs. Possibly fixes other things.

* Use push descriptors for uniform buffer updates (disabled for now)

* Push descriptor support check, buffer redundancy checks

Should make push descriptors faster, needs more testing though.

* Increase light command buffer pool to 2 command buffers, throw rather than returning invalid cbs

* Adjust bindings array sizes

* Force submit command buffers if memory in use by its resources is high

* Add workaround for AMD GCN cubemap view sins

`ImageCreateCubeCompatibleBit` seems to generally break 2D array textures with mipmaps... even if they are eventually aliased as a cubemap with mipmaps. Forcing a copy here works around the issue.

This could be used in future if enabling this bit reduces performance on certain GPUs. (mobile class is generally a worry)

Currently also enabled on Linux as I don't know if they managed to dodge this bug (someone please tell me). Not enabled on Vega at the moment, but easy to add if the issue is there.

* Add mobile, non-RX variants to the GCN regex.

Also make sure that the 3 digit ones only include numbers starting with 7 or 8.

* Increase image limit per stage from 8 to 16

Xenoblade Chronicles 2 was hiting the limit of 8

* Minor code cleanup

* Fix NRE caused by SupportBufferUpdater calling pipeline ClearBuffer

* Add gpu selector to Avalonia (#8)

* Add gpu selector to avalonia settings

* show backend label on window

* some fixes

* address review

* Minor changes to the Avalonia UI

* Update graphics window UI and locales. (#9)

* Update xaml and update locales

* locale updates

Did my best here but likely needs to be checked by native speakers, especially the use of ampersands in greek, russian and turkish?

* Fix locales with more (?) correct translations.

* add separator to render widget

* fix spanish and portuguese

* Add new IdList, replaces buffer list that could not remove elements and had unbounded growth

* Don't crash the settings window if Vulkan is not supported

* Fix Actions menu not being clickable on GTK UI after relaunch

* Rename VulkanGraphicsDevice to VulkanRenderer and Renderer to OpenGLRenderer

* Fix IdList and make it not thread safe

* Revert useless OpenGL format table changes

* Fix headless project build

* List throws ArgumentOutOfRangeException

* SPIR-V: Fix tessellation

* Increase shader cache version due to tessellation fix

* Reduce number of Sync objects created (improves perf in some specific titles)

* Fix vulkan validation errors for NPOT compressed upload and GCN workaround.

* Add timestamp to the shader cache and force rebuild if host cache is outdated

* Prefer Mail box present mode for popups (#11)

* Prefer Mail box present mode

* fix debug

* switch present mode when vsync is toggled

* only disable vsync on the main window

* SPIR-V: Fix geometry shader input load with transform feedback

* BC7 Encoder: Prefer more precision on alpha rather than RGB when alpha is 0

* Fix Avalonia build

* Address initial PR feedback

* Only set transform feedback outputs on last vertex stage

* Address riperiperi PR feedback

* Remove outdated comment

* Remove unused constructor

* Only throw for negative results

* Throw for QueueSubmit and other errors

No point in delaying the inevitable

* Transform feedback decorations inside gl_PerVertex struct breaks the NVIDIA compiler

* Fix some resolution scale issues

* No need for two UpdateScale calls

* Fix comments on SPIR-V generator project

* Try to fix shader local memory size

On DOOM, a shader is using local memory, but both Low and High size are 0, CRS size is 1536, it seems to store on that region?

* Remove RectangleF that is now unused

* Fix ImageGather with multiple offsets

Needs ImageGatherExtended capability, and must use `ConstantComposite` instead of `CompositeConstruct`

* Address PR feedback from jD in all projects except Avalonia

* Address most of jD PR feedback on Avalonia

* Remove unsafe

* Fix VulkanSkiaGpu

* move present mode request out of Create Swapchain method

* split more parts of create swapchain

* addressed reviews

* addressed review

* Address second batch of jD PR feedback

* Fix buffer <-> image copy row length and height alignment

AlignUp helper does not support NPOT alignment, and ASTC textures can have NPOT block sizes

* Better fix for NPOT alignment issue

* Use switch expressions on Vulkan EnumConversion

Thanks jD

* Fix Avalonia build

* Add Vulkan selection prompt on startup

* Grammar fixes on Vulkan prompt message

* Add missing Vulkan migration flag

Co-authored-by: riperiperi <rhy3756547@hotmail.com>
Co-authored-by: Emmanuel Hansen <emmausssss@gmail.com>
Co-authored-by: MutantAura <44103205+MutantAura@users.noreply.github.com>
2022-07-31 18:26:06 -03:00
gdkchan
1a888ae087
Add support for conditional (with CC) shader Exit instructions (#3470)
* Add support for conditional (with CC) shader Exit instructions

* Shader cache version bump

* Make CSM conditions default to false for EXIT.CC
2022-07-24 15:33:30 -03:00
gdkchan
7f8a3541eb
Fix decoding of block after shader BRA.CC instructions without predicate (#3472)
* Fix decoding of block after BRA.CC instructions without predicate

* Shader cache version bump
2022-07-23 11:53:14 -03:00
gdkchan
b34de74f81
Avoid adding shader buffer descriptors for constant buffers that are not used (#3478)
* Avoid adding shader buffer descriptors for constant buffers that are not used

* Shader cache version
2022-07-23 11:15:58 -03:00
gdkchan
4523a73f75
Propagate Shader phi nodes with the same source value from all blocks (#3457)
* Propagate Shader phi nodes with the same source value from all incoming blocks

* Shader cache version bump
2022-07-12 00:36:58 +02:00
gdkchan
b46b63e06a
Add support for alpha to coverage dithering (#3069)
* Add support for alpha to coverage dithering

* Shader cache version bump

* Fix wrong alpha register

* Ensure support buffer is cleared

* New shader specialization based approach
2022-07-05 19:58:36 -03:00
gdkchan
5afd521c5a
Bindless elimination for constant sampler handle (#3424)
* Bindless elimination for constant sampler handle

* Shader cache version bump

* Update TextureHandle.ReadPackedId for new bindless elimination
2022-07-02 15:03:35 -03:00
riperiperi
99ffc061d3
Optimize Texture Binding and Shader Specialization Checks (#3399)
* Changes 1

* Changes 2

* Better ModifiedSequence handling

This should handle PreciseEvents properly, and simplifies a few things.

* Minor changes, remove debug log

* Handle stage.Info being null

Hopefully fixes Catherine crash

* Fix shader specialization fast texture lookup

* Fix some things.

* Address Feedback Part 1

* Make method static.
2022-06-17 13:09:14 -03:00
riperiperi
43b4b34376
Implement Viewport Transform Disable (#3328)
* Initial implementation (no specialization)

* Use specialization

* Fix render scale, increase code gen version

* Revert accidental change

* Address Feedback
2022-05-12 10:47:13 -03:00
gdkchan
43ebd7a9bb
New shader cache implementation (#3194)
* New shader cache implementation

* Remove some debug code

* Take transform feedback varying count into account

* Create shader cache directory if it does not exist + fragment output map related fixes

* Remove debug code

* Only check texture descriptors if the constant buffer is bound

* Also check CPU VA on GetSpanMapped

* Remove more unused code and move cache related code

* XML docs + remove more unused methods

* Better codegen for TransformFeedbackDescriptor.AsSpan

* Support migration from old cache format, remove more unused code

Shader cache rebuild now also rewrites the shared toc and data files

* Fix migration error with BRX shaders

* Add a limit to the async translation queue

 Avoid async translation threads not being able to keep up and the queue growing very large

* Re-create specialization state on recompile

This might be required if a new version of the shader translator requires more or less state, or if there is a bug related to the GPU state access

* Make shader cache more error resilient

* Add some missing XML docs and move GpuAccessor docs to the interface/use inheritdoc

* Address early PR feedback

* Fix rebase

* Remove IRenderer.CompileShader and IShader interface, replace with new ShaderSource struct passed to CreateProgram directly

* Handle some missing exceptions

* Make shader cache purge delete both old and new shader caches

* Register textures on new specialization state

* Translate and compile shaders in forward order (eliminates diffs due to different binding numbers)

* Limit in-flight shader compilation to the maximum number of compilation threads

* Replace ParallelDiskCacheLoader state changed event with a callback function

* Better handling for invalid constant buffer 1 data length

* Do not create the old cache directory structure if the old cache does not exist

* Constant buffer use should be per-stage. This change will invalidate existing new caches (file format version was incremented)

* Replace rectangle texture with just coordinate normalization

* Skip incompatible shaders that are missing texture information, instead of crashing

This is required if we, for example, support new texture instruction to the shader translator, and then they allow access to textures that were not accessed before. In this scenario, the old cache entry is no longer usable

* Fix coordinates normalization on cubemap textures

* Check if title ID is null before combining shader cache path

* More robust constant buffer address validation on spec state

* More robust constant buffer address validation on spec state (2)

* Regenerate shader cache with one stream, rather than one per shader.

* Only create shader cache directory during initialization

* Logging improvements

* Proper shader program disposal

* PR feedback, and add a comment on serialized structs

* XML docs for RegisterTexture

Co-authored-by: riperiperi <rhy3756547@hotmail.com>
2022-04-10 10:49:44 -03:00
gdkchan
e44a43c7e1
Implement VMAD shader instruction and improve InvocationInfo and ISBERD handling (#3251)
* Implement VMAD shader instruction and improve InvocationInfo and ISBERD handling

* Shader cache version bump

* Fix typo
2022-04-08 12:42:39 +02:00
merry
a4e8bea866
Lop3Expression: Optimize expressions (#3184)
* lut3

* bugfixes

* TruthTable

* false/true -> 0/-1

* add or to expressions

* fix inversions

* increment cache version
2022-04-08 11:17:38 +02:00
gdkchan
04bd87ed5a
Fix shader textureSize with multisample and buffer textures (#3240)
* Fix shader textureSize with multisample and buffer textures

* Replace out param with tuple return value
2022-04-04 14:43:58 -03:00
gdkchan
8c9633d72f
Initialize indexed inputs used on next shader stage (#3198) 2022-03-14 20:02:50 -03:00
gdkchan
1f93fd52d9
Do not initialize geometry shader passthrough attributes (#3196) 2022-03-14 19:35:41 -03:00
gdkchan
0bcbe32367
Only initialize shader outputs that are actually used on the next stage (#3054)
* Only initialize shader outputs that are actually used on the next stage

* Shader cache version bump
2022-03-06 20:42:13 +01:00
gdkchan
72e543e946
Prefer texture over textureSize for sampler type (#3132)
* Prefer texture over textureSize for sampler type

* Shader cache version bump
2022-02-18 02:44:46 +01:00
gdkchan
3bd357045f
Do not allow render targets not explicitly written by the fragment shader to be modified (#3063)
* Do not allow render targets not explicitly written by the fragment shader to be modified

* Shader cache version bump

* Remove blank lines

* Avoid redundant color mask updates

* HostShaderCacheEntry can be null

* Avoid more redundant glColorMask calls

* nit: Mask -> Masks

* Fix currentComponentMask

* More efficient way to update _currentComponentMasks
2022-02-16 23:15:39 +01:00
gdkchan
f861f0bca2
Fix missing geometry shader passthrough inputs (#3106)
* Fix missing geometry shader passthrough inputs

* Shader cache version bump
2022-02-11 19:52:20 +01:00
gdkchan
7e967d796c
Stop using glTransformFeedbackVaryings and use explicit layout on the shader (#3012)
* Stop using glTransformFeedbackVarying and use explicit layout on the shader

* This is no longer needed

* Shader cache version bump

* Fix gl_PerVertex output for tessellation control shaders
2022-01-21 12:35:21 -03:00
gdkchan
0e59573f2b
Add capability for BGRA formats (#3011) 2022-01-20 08:37:21 -03:00
gdkchan
7f6b3d234a
Implement IMUL, PCNT and CONT shader instructions, fix FFMA32I and HFMA32I (#2972)
* Implement IMUL shader instruction

* Implement PCNT/CONT instruction and fix FFMA32I

* Add HFMA232I to the table

* Shader cache version bump

* No Rc on Ffma32i
2022-01-10 12:08:00 -03:00
riperiperi
79adba4402
Add support for render scale to vertex stage. (#2763)
* Add support for render scale to vertex stage.

Occasionally games read off textureSize on the vertex stage to inform the fragment shader what size a texture is without querying in there. Scales were not present in the vertex shader to correct the sizes, so games were providing the raw upscaled texture size to the fragment shader, which was incorrect.

One downside is that the fragment and vertex support buffer description must be identical, so the full size scales array must be defined when used. I don't think this will have an impact though. Another is that the fragment texture count must be updated when vertex shader textures are used. I'd like to correct this so that the update is folded into the update for the scales.

Also cleans up a bunch of things, like it making no sense to call CommitRenderScale for each stage.

Fixes render scale causing a weird offset bloom in Super Mario Party and Clubhouse Games. Clubhouse Games still has a pixelated look in a number of its games due to something else it does in the shader.

* Split out support buffer update, lazy updates.

* Commit support buffer before compute dispatch

* Remove unnecessary qualifier.

* Address Feedback
2022-01-08 14:48:48 -03:00
gdkchan
119a3a1887
Fix SUATOM and other texture shader instructions with RZ dest (#2885)
* Fix SUATOM and other texture shader instructions with RZ dest

* Shader cache version bump
2021-12-08 18:36:09 -03:00
gdkchan
650cc41c02
Implement remaining shader double-precision instructions (#2845)
* Implement remaining shader double-precision instructions

* Shader cache version bump
2021-12-08 17:54:12 -03:00
gdkchan
acc0b0f313
Fix FLO.SH shader instruction with a input of 0 (#2876)
* Fix FLO.SH shader instruction with a input of 0

* Shader cache version bump
2021-12-05 13:25:05 +01:00
Mary
57d3296ba4
infra: Migrate to .NET 6 (#2829)
* infra: Migrate to .NET 6

* Rollback version naming change

* Workaround .NET 6 ZipArchive API issues

* ci: Switch to VS 2022 for AppVeyor

CI is now ready for .NET 6

* Suppress WebClient warning in DoUpdateWithMultipleThreads

* Attempt to workaround System.Drawing.Common changes on 6.0.0

* Change keyboard rendering from System.Drawing to ImageSharp

* Make the software keyboard renderer multithreaded

* Bump ImageSharp version to 1.0.4 to fix a bug in Image.Load

* Add fallback fonts to the keyboard renderer

* Fix warnings

* Address caian's comment

* Clean up linux workaround as it's uneeded now

* Update readme

Co-authored-by: Caian Benedicto <caianbene@gmail.com>
2021-11-28 21:24:17 +01:00
gdkchan
b9d83cc97e
Fix shader integer from/to double conversion (#2831) 2021-11-14 21:37:07 -03:00
gdkchan
911ea38e93
Support shader gl_Color, gl_SecondaryColor and gl_TexCoord built-ins (#2817)
* Support shader gl_Color, gl_SecondaryColor and gl_TexCoord built-ins

* Shader cache version bump

* Fix back color value on fragment shader

* Disable IPA multiplication for fixed function attributes and back color selection
2021-11-08 13:18:46 -03:00
gdkchan
3dee712164
Fix bindless/global memory elimination with inverted predicates (#2826)
* Fix bindless/global memory elimination with inverted predicates

* Shader cache version bump
2021-11-08 12:57:28 -03:00
gdkchan
b7a1544e8b
Fix InvocationInfo on geometry shader and bindless default integer const (#2822)
* Fix InvocationInfo on geometry shader and bindless default integer const

* Shader cache version bump

* Consistency for the default value
2021-11-08 11:39:30 -03:00
gdkchan
99445dd0a6
Add support for fragment shader interlock (#2768)
* Support coherent images

* Add support for fragment shader interlock

* Change to tree based match approach

* Refactor + check for branch targets and external registers

* Make detection more robust

* Use Intel fragment shader ordering if interlock is not available, use nothing if both are not available

* Remove unused field
2021-10-28 19:53:12 -03:00
gdkchan
04dfb86fde
Preserve image types for shader bindless surface instructions (.D variants) (#2779)
* Preserve image types for SULD/SUST .D variants

* Make format unknown for surface atomic if bindless and not sized
2021-10-24 19:40:20 -03:00
gdkchan
63f1663fa9
Fix shader 8-bit and 16-bit STS/STG (#2741)
* Fix 8 and 16-bit STG

* Fix 8 and 16-bit STS

* Shader cache version bump
2021-10-18 20:24:15 -03:00
riperiperi
052deebf26
Another workaround for NVIDIA driver 496.13 shader bug (#2750)
* Another workaround for NVIDIA driver 496.13 shader bug

This might work better than the other one. Give this a test to see if it fixes/doesn't fix issues with the other one.

The problem seems to be when any variable assignment happens with a negation. `temp_1 = -temp_0;` seems to trigger weird behaviour, but `temp_1 = 0.0 - temp_0;` does not. This also might to extend towards integer types?

* Update cache version

* Add disclaimer comment

* Wording
2021-10-18 20:04:06 -03:00
gdkchan
d512ce122c
Initial tessellation shader support (#2534)
* Initial tessellation shader support

* Nits

* Re-arrange built-in table

* This is not needed anymore

* PR feedback
2021-10-18 18:38:04 -03:00
gdkchan
7603dbe3c8
Add missing U8/S8 types from shader I2I instruction (#2740)
* Add missing U8/S8 types from shader I2I instruction

* Better names

* Fix dstIsSignedInt
2021-10-17 17:48:36 -03:00
gdkchan
25fd4ef10e
Extend bindless elimination to work with masked and shifted handles (#2727)
* Extent bindless elimination to work with masked handles

* Extend bindless elimination to catch shifted pattern, refactor handle packing/unpacking
2021-10-17 17:28:18 -03:00
gdkchan
d05573bfd1
Implement SHF (funnel shift) shader instruction (#2702)
* Implement SHF shader instruction

* Shader cache version bump

* Better name
2021-10-17 17:02:20 -03:00
gdkchan
a7109c767b
Rewrite shader decoding stage (#2698)
* Rewrite shader decoding stage

* Fix P2R constant buffer encoding

* Fix PSET/PSETP

* PR feedback

* Log unimplemented shader instructions

* Implement NOP

* Remove using

* PR feedback
2021-10-12 22:35:31 +02:00
gdkchan
fd7567a6b5
Only make render target 2D textures layered if needed (#2646)
* Only make render target 2D textures layered if needed

* Shader cache version bump

* Ensure topology is updated on channel swap
2021-09-29 01:55:12 +02:00
gdkchan
f08a280ade
Use shader subgroup extensions if shader ballot is not supported (#2627)
* Use shader subgroup extensions if shader ballot is not supported

* Shader cache version bump + cleanup

* The type is still required on the table
2021-09-19 14:38:39 +02:00
riperiperi
f0b00c1ae9
Fix TXQ for 3D textures. (#2613)
* Fix TXQ for 3D textures.

Assumes the texture is 3D if the component mask contains Z.

This fixes a bug in UE4 games where parts of the map had garbage pointers to lighting voxels, as the lookup 3D texture was not being initialized. Most notable game is THPS1+2.

May need another PR to keep image store data alive and properly flush it in order using the AutoDeleteCache.

* Get sampler type for TextureSize from bound textures.
2021-09-02 00:17:43 -03:00
riperiperi
142cededd4
Implement Shader Instructions SUATOM and SURED (#2090)
* Initial Implementation

* Further improvements (no support for float/64-bit types)

* Merge atomic and reduce instructions, add missing format switch

* Fix rebase issues.

* Not used.

* Whoops. Fixed.

* Partial implementation of inc/dec, cleanup and TODOs

* Remove testing path

* Address Feedback
2021-08-31 02:51:57 -03:00
gdkchan
416dc8fde4
Fix out-of-bounds shader thread shuffle (#2605)
* Fix out-of-bounds shader thread shuffle

* Shader cache version bump
2021-08-30 14:02:40 -03:00
gdkchan
ee1038e542
Initial support for shader attribute indexing (#2546)
* Initial support for shader attribute indexing

* Support output indexing too, other improvements

* Fix order

* Address feedback
2021-08-27 01:44:47 +02:00
gdkchan
0ba4ade8f1
Ensure render scale is initialized to 1 on the backend (#2543) 2021-08-11 19:44:41 -03:00
gdkchan
c3e2646f9e
Workaround for Intel FrontFacing built-in variable bug (#2540) 2021-08-11 23:01:06 +02:00
gdkchan
ed754af8d5
Make sure attributes used on subsequent shader stages are initialized (#2538) 2021-08-11 22:27:00 +02:00
gdkchan
0f6ec446ea
Replace BGRA and scale uniforms with a uniform block (#2496)
* Replace BGRA and scale uniforms with a uniform block

* Setting the data again on program change is no longer needed

* Optimize and resolve some warnings

* Avoid redundant support buffer updates

* Some optimizations to BindBuffers (now inlined)

* Unify render scale arrays
2021-08-11 21:33:43 +02:00
gdkchan
d9d18439f6
Use a new approach for shader BRX targets (#2532)
* Use a new approach for shader BRX targets

* Make shader cache actually work

* Improve the shader pattern matching a bit

* Extend LDC search to predecessor blocks, catches more cases

* Nit

* Only save the amount of constant buffer data actually used. Avoids crashes on partially mapped buffers

* Ignore Rd on predicate instructions, as they do not have a Rd register (catches more cases)
2021-08-11 20:59:42 +02:00
Mary
97a2133207
shadertools: Prepare for new target Languages and APIs (#2465)
* shadertools: Prepare for new target Langugaes and APIs

This improves shader tools command line by adding support for target
language and api.

* Address gdkchan's comments
2021-07-18 12:49:39 +02:00
gdkchan
9b08abc644
Fix shader compilation on shaders that uses rectangle textures (#2471) 2021-07-12 16:20:33 -03:00
gdkchan
59900d7f00
Unscale textureSize when resolution scaling is used (#2441)
* Unscale textureSize when resolution scaling is used

* Fix textureSize on compute

* Flag texture size as needing res scale values too
2021-07-09 00:09:07 -03:00
gdkchan
d125fce3e8
Allow shader language and target API to be specified on the shader translator (#2402) 2021-07-06 21:20:06 +02:00
gdkchan
493648df31
Fix default value for unwritten shader outputs (#2412)
* Fix shader default output values

* Shader cache version bump
2021-06-25 19:56:03 -03:00
gdkchan
ed2f5ede0f
Fix texture sampling with depth compare and LOD level or bias (#2404)
* Fix texture sampling with depth compare and LOD level or bias

* Shader cache version bump

* nit: Sorting
2021-06-25 00:54:50 +02:00
gdkchan
c71ae9c85c
Fix shader texture LOD query (#2397) 2021-06-23 23:31:14 +02:00
gdkchan
49edf14a3e
Pass all inputs when geometry shader passthrough is enabled (#2362)
* Pass all inputs when geometry shader passthrough is enabled

* Shader cache version bump
2021-06-23 23:04:59 +02:00
gdkchan
65fee49e8a
Fix separate bindless sampler at offset 0 (#2360) 2021-06-20 20:48:12 +02:00
riperiperi
7ff1f9aa12
End shader decoding when reaching a block that starts with an infinite loop (after BRX) (#2367)
* End shader decoding when reaching an infinite loop

The NV shader compiler puts these at the end of shaders.

* Update shader cache version
2021-06-15 02:09:59 +02:00
gdkchan
02e2e561ac
Support bindless textures with separate constant buffers for texture and sampler (#2339) 2021-06-09 00:42:25 +02:00
gdkchan
3b90adcd1d
Fix shaders with mixed PBK and SSY addresses on the stack (#2329)
* Fix shaders with mixed PBK and SSY addresses on the stack

* Address PR feedback and nits
2021-06-03 01:41:53 +02:00
gdkchan
79b3243f54
Do not attempt to normalize SNORM image buffers on shaders (#2317)
* Do not attempt to normalize SNORM image buffers on shaders

* Shader cache version bump
2021-05-31 21:59:23 +02:00
gdkchan
3fd6b55f04
Fix value of constant vertex attributes (#2307) 2021-05-24 17:38:38 +10:00
riperiperi
5271cfe70b
Fix dimensions check for scale eligibility (#2301) 2021-05-21 01:09:18 +02:00
gdkchan
12533e5c9d
Fix buffer and texture uses not being propagated for vertex A/B shaders (#2300)
* Fix buffer and texture uses not being propagated for vertex A/B shaders

* Shader cache version bump
2021-05-20 21:43:23 +02:00
gdkchan
b34c0a47b4
Fix constant buffer array size when indexing is used and other buffer descriptor and resolution scale regressions (#2298)
* Fix constant buffer array size when indexing is used

* Change default QueryConstantBufferUse value

* Fix more regressions

* Ensure proper order
2021-05-20 15:12:15 -03:00
gdkchan
49745cfa37
Move shader resource descriptor creation out of the backend (#2290)
* Move shader resource descriptor creation out of the backend

* Remove now unused code, and other nits

* Shader cache version bump

* Nits

* Set format for bindless image load/store

* Fix buffer write flag
2021-05-19 23:15:26 +02:00
riperiperi
0129250c2e
Pass CbufSlot when getting info from the texture descriptor (#2291)
* Pass CbufSlot when getting info from the texture descriptor

Fixes some issues with bindless textures, when CbufSlot is not equal to the current TextureBufferIndex.

Specifically fixes a random chance of full screen colour flickering in Super Mario Party.

* Apply suggestions from code review

Oops

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

Co-authored-by: gdkchan <gab.dark.100@gmail.com>
2021-05-19 20:05:43 +02:00
gdkchan
0e9823d7e6
Fix shader buffer write flag on atomic instructions (#2261)
* Fix shader buffer write flag on atomic instructions

* Shader cache version bump
2021-05-01 20:46:21 +02:00
gdkchan
4770cfa920
Only enable clip distance if written to on shader (#2217)
* Only enable clip distance if written to on shader

* Signal InstanceId use through FeatureFlags

* Shader cache version bump
2021-04-20 12:33:54 +02:00
gdkchan
40e276c9b5
Improve shader global memory to storage pass (#2200)
* Improve shader global memory to storage pass

* Formatting and more comments

* Shader cache version bump
2021-04-18 12:31:39 +02:00
gdkchan
524fe3bea4
Implement shader HelperThreadNV (#2163)
* Implement shader HelperThreadNV

* Bump shader cache version

* Use gl_HelperInvocation since its supported across all vendors

* Nit
2021-04-02 21:50:35 +11:00
gdkchan
a0b4799f19
Fix ZN flags set for shader instructions using RZ.CC dest (#2147)
* Fix ZN flags set for shader instructions using RZ.CC dest

* Shader cache version bump and nits
2021-03-27 22:59:05 +01:00
mageven
a5d5ca0635
Shader Cache: Move bindless checking from translation to decode (#2145) 2021-03-27 00:50:26 +01:00
Mary
aef25980a7
Salieri: Detect and avoid caching shaders using bindless textures (#2097)
* Salieri: Add blacklist system and blacklist shaders using bindless

Currently the shader cache doesn't have the right format to support
bindless textures correctly and may cache shaders that it cannot rebuild
after host invalidation.

This PR address the issue by blacklisting shaders using bindless
textures.

THis also support detection of already cached broken shader and handle removal
of those.

* Move to a feature flags design to avoid intrusive changes in the translator

This remove the auto correct behaviour

* Reduce diff on TranslationFlags

* Reduce comma on last entry of TranslationFlags

* Fix inverted logic and remove leftovers

* remove debug edits oops
2021-03-19 20:07:37 +01:00
riperiperi
ede26556f2
Traverse PhiNodes for Bindless Elimination (#2089)
This allows bindless handles to be found for image/texture instructions with predicates, when the assignment of the texture handle is within the same predicate.

This seems to cover the remaining bindless handles that compilers seem to be creating due to optimizations.

Will affect newer UE4 games, and games by NdCube (Super Mario Party, Clubhouse Games)
2021-03-09 17:27:44 -03:00
riperiperi
1623ab524f
Improve Buffer Textures and flush Image Stores (#2088)
* Improve Buffer Textures and flush Image Stores

Fixes a number of issues with buffer textures:

- Reworked Buffer Textures to create their buffers in the TextureManager, then bind them with the BufferManager later.
  - Fixes an issue where a buffer texture's buffer could be invalidated after it is bound, but before use.
- Fixed width unpacking for large buffer textures. The width is now 32-bit rather than 16.
- Force buffer textures to be rebound whenever any buffer is created, as using the handle id wasn't reliable, and the cost of binding isn't too high.

Fixes vertex explosions and flickering animations in UE4 games.

* Set ImageStore flag... for ImageStore.

* Check the offset and size.
2021-03-08 18:43:39 -03:00
gdkchan
4047477866
Simplify handling of shader vertex A (#1999)
* Simplify handling of shader vertex A

* Theres no transformation feedback, its transform

* Merge TextureHandlesForCache
2021-02-08 10:42:17 +11:00
gdkchan
053dcfdb05
Use multiple dest operands for shader call instructions (#1975)
* Use multiple dest operands for shader call instructions

* Passing opNode is no longer needed
2021-02-01 11:13:38 +11:00
gdkchan
f93089a64f
Implement geometry shader passthrough (#1961)
* Implement geometry shader passthrough

* Cache version change
2021-01-29 14:38:51 +11:00
gdkchan
4b7c7dab9e
Support multiple destination operands on shader IR and shuffle predicates (#1964)
* Support multiple destination operands on shader IR and shuffle predicates

* Cache version change
2021-01-28 10:59:47 +11:00
gdkchan
98d0240ce6
Support shader F32 to Bool reinterpretation (#1969) 2021-01-27 09:19:30 +01:00
gdkchan
a8e9dd2f83
Fix regression on shader atomic SSBO operations (#1967)
* Fix regression on shader atomic SSBO operations

* Update comment
2021-01-27 11:26:23 +11:00
gdkchan
e453ba69f4
Add support for shader atomic min/max (S32) (#1948) 2021-01-26 17:38:33 +11:00
riperiperi
a1f77a5b6a
Implement lazy flush-on-read for Buffers (SSBO/Copy) (#1790)
* Initial implementation of buffer flush (VERY WIP)

* Host shaders need to be rebuilt for the SSBO write flag.

* New approach with reserved regions and gl sync

* Fix a ton of buffer issues.

* Remove unused buffer unmapped behaviour

* Revert "Remove unused buffer unmapped behaviour"

This reverts commit f1700e52fb8760180ac5e0987a07d409d1e70ece.

* Delete modified ranges on unmap

Fixes potential crashes in Super Smash Bros, where a previously modified range could lie on either side of an unmap.

* Cache some more delegates.

* Dispose Sync on Close

* Also create host sync for GPFifo syncpoint increment.

* Copy buffer optimization, add docs

* Fix race condition with OpenGL Sync

* Enable read tracking on CommandBuffer, insert syncpoint on WaitForIdle

* Performance: Only flush individual pages of SSBO at a time

This avoids flushing large amounts of data when only a small amount is actually used.

* Signal Modified rather than flushing after clear

* Fix some docs and code style.

* Introduce a new test for tracking memory protection.

Sucessfully demonstrates that the bug causing write protection to be cleared by a read action has been fixed. (these tests fail on master)

* Address Comments

* Add host sync for SetReference

This ensures that any indirect draws will correctly flush any related buffer data written before them. Fixes some flashing and misplaced world geometry in MH rise.

* Make PageAlign static

* Re-enable read tracking, for reads.
2021-01-17 17:08:06 -03:00
gdkchan
5be6ec6364
Fix shader LOP3 predicate write condition (#1910)
* Fix LOP3 predicate write condition

* Bump shader cache version
2021-01-14 01:07:50 +01:00
gdkchan
36c6e67df2
Implement shader CC mode for ISCADD, X mode for ISETP and fix STL/STS/STG with RZ (#1901)
* Implement shader CC mode for ISCADD, X mode for ISETP and fix STS/STG with RZ

* Fix STG too and bump shader cache version

* Fix wrong name

* Fix Carry being inverted on comparison
2021-01-13 08:52:13 +11:00
gdkchan
8e0a421264
Fix remap when handle is 0 (#1882)
* Nvservices cleanup and attempt to fix remap

* Unmap if remap handle is 0

* Remove mapped pool add from Remap
2021-01-10 10:11:31 +11:00
gdkchan
b9200dd734
Support conditional on BRK and SYNC shader instructions (#1878)
* Support conditional on BRK and SYNC shader instructions

* Add TODO comment and bump cache version
2021-01-08 22:55:55 -03:00
riperiperi
461c24092a
Implement Force Early Z Register (#1755) 2020-12-02 00:13:27 +01:00
Mary
aa129fdbdf
infra: Migrate to .NET 5 (#1694)
* infra: Migrate to .NET 5

This migrate projects and CI to .NET 5

* Remove language version restrictions (now on 9.0 by default)

* infra: pin .NET 5 to avoid later issues

* infra: Cleanup csproj files

* infra: update dependencies

* infra: Add temporary workaround for a bug in Vector128.Create

see https://github.com/dotnet/runtime/issues/44704 for more informations
2020-11-15 19:27:15 +01:00
Mary
48f6570557
Salieri: shader cache (#1701)
Here come Salieri, my implementation of a disk shader cache!

"I'm sure you know why I named it that."
"It doesn't really mean anything."

This implementation collects shaders at runtime and cache them to be later compiled when starting a game.
2020-11-13 00:15:34 +01:00
gdkchan
c3d62bd078
Implement ATOM shader instruction (#1687)
* Implement ATOM shader instruction

* Fix reduction type decoding
2020-11-10 01:06:46 +01:00
gdkchan
934a78005e
Simplify logic for bindless texture handling (#1667)
* Simplify logic for bindless texture handling

* Nits
2020-11-09 19:35:04 -03:00
gdkchan
8d168574eb
Use explicit buffer and texture bindings on shaders (#1666)
* Use explicit buffer and texture bindings on shaders

* More XML docs and other nits
2020-11-08 12:10:00 +01:00
gdkchan
ce9105a130
Support single precision contants for double precision operations (#1673) 2020-11-06 18:54:13 +01:00
riperiperi
e1da7df207
Support res scale on images, correctly blacklist for SUST, move logic out of backend. (#1657)
* Support res scale on images, correctly blacklist for SUST, move logic
out of backend.

* Fix Typo
2020-11-02 16:53:23 -03:00
riperiperi
780c7530d6
Add scaling for Texture2DArray when using TexelFetch. (#1645)
* Add scaling for Texture2DArray when using TexelFetch.

* Should only really trigger for Texture2D. (do not emit texelfetch for
TextureBufferArray(?) and Texture1DArray)

* Address nit.
2020-10-28 21:27:46 +01:00