- add new IShaderFormat API for separate preprocessing and compilation; backends can implement one or the other depending on the return value of SupportsIndependentPreprocessing
- add support for executing preprocessing in the cook process prior to job submission and constructing job input hashes based on preprocessed source (and a subset of the environment used as compile inputs). controlled by a cvar for now and disabled by default
- add a BaseShaderFormat class in ShaderCompilerCommon which implements common behaviour for output of debug data - note this function is only called for formats which support independent preprocessing, so is expected to be used only by formats which have been converted to use this API
- add new cvars for output of some additional shader debug data - 1. a txt file containing the input hash a.k.a. job cache key 2. a text file containing all diagnostic messages (errors and warnings) for the job
- minor change to how input hashes are constructed for pipeline jobs - sum hashes as 256-bit ints instead of adding to a buffer and re-hashing. faster and simpler, and also more collision resistant (sum of two well distributed hashes equally well distributed)
#rb Jason.Nadro
#rb Yuriy.ODonnell
#preflight 64512c88c86798f650b953d3
[CL 25317218 by dan elksnitis in ue5-main branch]
- add a debug info flags enum/field to indicate which shader debug outputs are desired
- change direct compile txt file mechanism to use this (more options will be added in the near future)
- rename the field on the debug info dump options which indicates that the direct compile file should be skipped to bSourceOnly (when addtional outputs are added these should be skipped as well)
#preflight 6447f6c4b208f61af876e215
#rb Jason.Nadro
#rb Massimo.Tristano
[CL 25183084 by dan elksnitis in ue5-main branch]
- Adding correct handling for bindless uniform buffer parameters.
- Reworking RHITextureReference creation to allow the RHI to create them differently, especially with bindless views.
- Adding RHITextureReference bindless view updates to D3D12RHI.
#jira UE-162014
#rb mihnea.balta, jeannoe.morissette
#preflight 642dba03c6769c6082f592f6
[CL 24936647 by christopher waters in ue5-main branch]
* Track namespaces for symbols
* Re-emit namespace scopes
* Conservatively include symbols from all namespaces in minified code (as if they were all global)
* Additional parsing work will be required to more accurately track used symbols based on active namespaces (i.e. handle `using` keyword, etc.)
* Added RemoveDeadCode() overload that takes an explicit list of required symbols instead of just an entry point name
#rb dan.elksnitis
#preflight 6398be5e35203bc7aa7f9b47
[CL 23494729 by Yuriy ODonnell in ue5-main branch]
MPCook and Shaders: Change ShaderSymbolExport to export to different .zip files when in a -MultiprocessId environment.
Add part of the implementation for merging the different zip files created by CookWorkers together. The rest of the implementation requires reading from .zip files and will be coming in a future change.
#rb Christopher.Waters, Zousar.Shaker
#rnx
#preflight 6377fcedfa348e8480e25a2b
[CL 23209604 by Matt Peters in ue5-main branch]
- Making ConstantBufferType a constructor only argument. This removes the duplicated logic of calling ShouldUseStableConstantBuffer.
- Moving ShouldUseStableConstantBuffer to ShaderCompilerCommon.
- Made UE::ShaderCompilerCommon::ParseParameterType array arguments const
#jira UE-166341
#rb Guillaume.Abadie
#preflight 634eeceea1527f6b3bda9ff0
[CL 22608320 by christopher waters in ue5-main branch]
- Refactoring FShaderParameterParser to use more string views since we can rely on OriginalParsedShader not changing.
- Split FShaderParameterParser::ParseAndMoveShaderParametersToRootConstantBuffer into smaller functions
- Moving FShaderParametersMetadata::IterateShaderParameterMembers into the only module it's used in, ShaderParameterParser.cpp
- Adding CFLAG_BindlessResources which will be set when ENABLE_BINDLESS_RESOURCES is set
- Adding CFLAG_BindlessSamplers which will be set when ENABLE_BINDLESS_SAMPLERS is set
- Adding resource/sampler detection and conversion to bindless in FShaderParameterParser
#jira UE-139616
#rb guillaume.abadie, jeannoe.morissette, yuriy.odonnell, laura.hermanns
#preflight 62d180cce468fcfd0b7001a0
[CL 21111994 by christopher waters in ue5-main branch]
