- Removing the need for COMPILER_DEFINE on GetResourceFromHeap and GetSamplerFromHeap
- FShaderParameterParser constructor now requires a FPlatformConfiguration object that each shader format can configure.
- FPlatformConfiguration::GenerateBindlessAccess allows each platform to generate the code for accessing a bindless resource or sampler.
- Added EShaderParameterParserConfigurationFlags to specify support for stable constant buffers and bindless.
- Moved EBindlessParameterMode into EShaderParameterParserConfigurationFlags::BindlessUsesArrays
- While moving things around, I was able to convert some TCHAR* uses to FStringView
#jira UE-166341
#rb mihnea.balta
[CL 29533376 by christopher waters in ue5-main branch]
- Splitting "Bindless Resource" shader parameter types into "Bindless SRV" and "Bindless UAV" to make sure reflection/binding validation is correct.
#jira UE-166341
#rb jeannoe.morissette
[CL 28995862 by christopher waters in ue5-main branch]
Doesn't produce bit identical preprocessed output, as it compacts whitespace from compound identifiers before testing them, whereas the original implementation compacts whitespace after matching. Compacting first makes testing more efficient and simpler, since it doesn't need to take into account whitespace. For A/B validation, I did add temporary debug code that stored and reverted un-matched identifiers, mimicking the old behavior, and it was identical across the board.
#rnx
#rb dan.elksnitis chris.waters jason.nadro
[CL 28313553 by jason hoerner in ue5-main branch]
- Removing system calls from UniformBuffer parsing and processing.
- When searching for uses of a UniformBuffer, start after the end of the UniformBuffer declaration.
- Simplifying the code around UniformBuffer reference cleanup
- Cuts time in CleanupUniformBufferCode by 50-75% based on how large the shader is.
#jira UE-195103
#rb dan.elksnitis, jason.hoerner
[CL 28172021 by christopher waters in ue5-main branch]
- When generating Uniform Buffer HLSL code, a 'static const struct {} Name' was created which has been causing compiler issues off and on for years.
- When RemoveUniformBuffersFromSource removed said struct, it parsed the struct's structure to figure out how to translate UniformBuffer.Member into UniformBuffer_Member in code that accessed Uniform Buffers.
- Now, instead of a struct, a "UniformBuffer <Name>" declaration is created and filled with mappings from "UniformBuffer.Member" into the correct code.
- This allows ConstantBuffer objects to be used differently from cbuffer where the former generates "UniformBuffer.Member" and the latter generates "UniformBuffer_Member"
- This also allows resources to always be translated to "UniformBuffer_Member"
- Shader define 'PLATFORM_SUPPORTS_UB_STRUCT' is now 'PLATFORM_SUPPORTS_CONSTANTBUFFER_OBJECT' and will be set on shader formats that support ConstantBuffer<> objects.
- Removed lots of unused code from BindlessResources.ush
#jira UE-195103
#rb dan.elksnitis, jeannoe.morissette
[CL 28058373 by christopher waters in ue5-main branch]
- remove redundant options struct initialization in DumpDebugShaderData - this was resulting in losing some of the options set in the input parameter options struct
- add explicit "DumpExtendedDebugShaderData" which includes the additional debug output functionality only previously available if an IShaderFormat implementation inherited from FBaseShaderFormat
- add "AdditionalOutputs" functionality which can be used by backends to dump additional (text-based) files following the file naming rules as dictated by the options struct with less boilerplate code
- add a helper for constructing a debug filename from the debug output options struct (some backends require constructing such filenames for i.e. contents of batchfiles; the helper reduces boilerplate code in such cases)
- fix condition for old path of dumping OutputHash.txt to not redundantly dump if shader format supports independent preprocessing and preprocessed cache is enabled
#rb Massimo.Tristano
[CL 25892792 by dan elksnitis in ue5-main branch]
- add new fields to FShaderCompilerOutput which should be populated with the shader source and entry point name if modified by a backend compile process (in a format implementing the independent preprocessing API). this is intended to supercede "OptionalFinalShaderSource" for such shader formats, as well as being used as the source for preprocessed debug dumps when enabled.
- modify the PCD3D shader format to use these fields as intended (and so fix the debug output for pipelines which remove unused interpolators to match the final modified source).
#rb Laura.Hermanns
#preflight 64777f850848b7126dda194c
[CL 25706448 by dan elksnitis in ue5-main branch]
* Early out when adding uniform buffer resource entries, by checking if uniform buffer had been processed, before processing individual entries.
* Changed resource entry list from a map to an array, saving the cost of map operations adding items to it.
* Resource entries for global uniform buffers cached once at startup.
* Resource entry member names stored in an external buffer, to avoid per-entry string memory allocation overhead.
* Miscellaneous smaller optimizations -- for example, using ByHash to avoid redundant hashing and FString construction.
#jira none
#rnx
#rb jason.nadro dan.elksnitis
#preflight 646cfdbc1134ffac7034af60
[CL 25596308 by jason hoerner in ue5-main branch]
