[FYI] Joe.Kirchoff
Original CL Desc
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Prevent clang analysis warnings for uninitialized data from FArchive derived readers
#rnx
[CL 32857977 by joe kirchoff in ue5-main branch]
-> Done because UE disables 32 bit down cast - silently could overflow.
-> General use should automatically work.
-> Deprecate some old 32 bit functions not generally used.
-> Deprecate/rename some ancient flags for future removal.
-> Update CompressorData to uint ptr for future use
-> Remove some stuff deprecated in 4.21 (2018)
#rb fabian.giesen
#jira UE-173911
[CL 31688300 by dan thompson in ue5-main branch]
Changed ArchiveCrc32 operator<<(FArchive&) template generalization for structs to only apply for direct serialization to ArchiveCrc32 and if there is no better conversion available.
Details in Jira:
#rb Steve.Robb, Peter.Engstrom
[CL 30591200 by mattias hornlund in ue5-main branch]
Writes a package bulk data instances with offset, size and flags to the specified destination file.
Usage:
UnrealPak.exe -ListContainerBulkData=<Path/To/PakFolder/OrContainerFile> -cryptokeys=<Path> -Out=<Filename[.json|.csv]>
#rb Paul.Chipchase
[CL 30073803 by per larsson in ue5-main branch]
Currently, loaders are identified via an FName returned by GetLoaderName, which is clumsy to use and a tad error prone. Instead, use an enum to identify the loader types via GetLoaderType.
This is also a prerequisite for UE-188423.
#rb Francis.Hurteau
[CL 29817770 by dave jones2 in ue5-main branch]
- Add a new partial loading mode where flushing the requestID will exit after serialization is done (after exportdone but before postload)
- Automatically opt-in partial loading when an explicit load is called recursively from another load (treated as an import)
- During recursive loading, attach postload of the recursive load to the caller's postload
- Add loading unit tests to validate the new behavior for zenloader
- Add a way to detect which loader is currently active to run unit tests on zenloader only
#rnx
#jira UE-190649
#rb Francis.Hurteau
[CL 28227792 by danny couture in ue5-main branch]
[FYI] danny.couture
Original CL Desc
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[ZenLoader] Fix recursive loading behavior in zenloader by following more closely how legacy loading works
- Add a new partial loading mode where flushing the requestID will exit after serialization is done (after exportdone but before postload)
- Automatically opt-in partial loading when an explicit load is called recursively from another load (treated as an import)
- During recursive loading, attach postload of the recursive load to the caller's postload
- Add loading unit tests to validate the new behavior for zenloader
- Add a way to detect which loader is currently active to run unit tests on zenloader only
#rnx
#jira UE-190649
#rb Francis.Hurteau
[CL 28214800 by bob tellez in ue5-main branch]
- Add a new partial loading mode where flushing the requestID will exit after serialization is done (after exportdone but before postload)
- Automatically opt-in partial loading when an explicit load is called recursively from another load (treated as an import)
- During recursive loading, attach postload of the recursive load to the caller's postload
- Add loading unit tests to validate the new behavior for zenloader
- Add a way to detect which loader is currently active to run unit tests on zenloader only
#rnx
#jira UE-190649
#rb Francis.Hurteau
[CL 28184263 by danny couture in ue5-main branch]
#rb Paul.Chipchase
#rnx
## Background
The on demand I/O backend doesn't store complete/hole I/O chunks in the local file cache, only the parts that has been requested by the game. There are currently
two ways for querying the I/O backend(s) whether a specific chunk exists or not. The primary one used by the texture streaming system is DoesChunkExist(ChunkId). This
method is called via FBulkData::DoesExist(). In order to be able to fufill this query for partially cached I/O chunks, two additional methods has been
added to the I/O dispatcher API. Currently private, only accessible by FBulkData.
- DoesChunkExist(ChunkId, OffsetAndLength)
- GetSizeForChunk(ChunkId, OffsetAndLength)
The method GetSizeForChunk is only ever used by the IAsyncFileHandle wrapper for bulk data and is a tricky compromise. The file handle
represents the hole chunk/file where the bulk data instance resides, i.e. .ubulk, .uptnl etc. Calling get file size on this file handle should return
the size for the entire chunk/file. It is technically possible to read outside of the bulk data range and this would result in the read request
coming back as failed, since the resolve function in the I/O backend wouldn't be found. The file handle wrapper for bulk data is currently only used
by virtual textures and should be deprecated in the long run.
[CL 27337787 by per larsson in ue5-main branch]
- Allows callees of LoadPackageAsync to be notified when serialization is done so they can schedule the next load right from the async loading thread without having to pay for a round-trip to the game-thread
- Add UnattendedAsyncLoading test as a sample of how this feature can be used
- Add thread-safety tests for LoadPackageAsync
- Can be exercised using a cooked client build with the following command-line
-ExecCmds="Automation RunTest System.Engine.Loading.UnattendedAsyncLoadingTest+System.Engine.Loading.ThreadSafeAsyncLoadingTest;Quit"
#jira UE-188744
#rb Francis.Hurteau
[CL 26569151 by danny couture in ue5-main branch]
