* get the package object to get the package path instead of guessing from file name
#jira UE-169325
#preflight 636a982edc30a4ce96aa48fc
#rnx
#rb Chris.Constantinescu
[CL 23062070 by Jerome Delattre in ue5-main branch]
This avoids a race condition where a build completes and then another process is unable to retrieve the data from the cache.
#preflight 636b2a547c2b505190e7d036
#rb Zousar.Shaker
#rnx
[CL 23059312 by Devin Doucette in ue5-main branch]
Takeaways. Try to use "friend" on functions/operators that are frequently overloaded EXCEPT if they are in a templated type that is frequently instantiated. So do not put friends in TMap, TSet, TObjectPtr etc, this will slow down compile times. There is a break-even somewhere and hard to tell where it is but taking a class that is templatized on character type probably don't matter either way and then it is nicer to use a friend since that simplies error messages when compiler can't resolve functions/operators.
If it is possible to use member functions instead of friend that is the best option in terms of compile time performance. With c++20 you only have to write operator==(Foo, Bar) and the compiler will automatically provide operator==(Bar, Foo), operator!=(Foo, Bar) and operator!=(Bar, Foo).
Changes in this changelist involes
* Making operator<< friends in non-template types and not friends in template types
* Making operator==/!= members where possible and if not possible moved out if type is a frequently instantiated templated type.
#preflight 636970f5376a9cd6a80da54a
#rb steve.robb
[CL 23038965 by henrik karlsson in ue5-main branch]
This allows for pausing of async texture compilation and limiting concurrent texture builds based on the same memory limits that the asset compiling manager uses.
#jira UE-141137
#jira UE-141139
#preflight 636a78af4d3c1d9d92d2ce5a
#rb Zousar.Shaker
[CL 23033009 by Devin Doucette in ue5-main branch]
Companion PR in zen: https://github.com/EpicGames/zen/pull/184
#rb stefan.boberg
#preflight 6368ce57d0174259cc1e7b7a
[CL 23009037 by dan engelbrecht in ue5-main branch]
- Remove shader platform specific info from uniform buffers, we can generate code with macros that translates to what each platform needs.
- With the per-platform differences removed, uniform buffer declarations (read: generated text) can be created once per shader parameter type that needs them instead of once per shader type's shader parameter type usage.
- FShaderType and FVertexFactoryType now hold a TSet of used uniform buffer names instead of a TMap that held potentially duplicated FStrings of uniform buffer defintions.
- Lists of uniform buffers are *potentially* different per platform, so the annoying CachedUniformBufferPlatform variables need to stick around for now.
- GenerateReferencedUniformBuffers renamed to GenerateReferencedUniformBufferNames and now populates a TSet instead of a TMap.
- ShaderType::AddReferencedUniformBufferIncludes renamed to ShaderType::AddUniformBufferIncludesToEnvironment which calls the shared UE::ShaderParameters::AddUniformBufferIncludesToEnvironment.
- CreateUniformBufferShaderDeclaration moved to UE::ShaderParameters::CreateUniformBufferShaderDeclaration and now returns its FString.
- CacheUniformBufferIncludes was removed since it was only populated values from CreateUniformBufferShaderDeclaration.
- Deprecated FShaderCompilerInput::SourceFilePrefix since nothing has populated it in 9 years.
#jira none
#rb dan.elksnitis, yuriy.odonnell
#preflight 63643e5ff233f06a127c11c1
[CL 22988611 by christopher waters in ue5-main branch]
