RHi now provides CreateAndLock functions for Vertex and Index buffers which are more efficient on certain platforms.
Use r.PS4StandardWriteLocks=1 to enable the old default functionality for testing if necessary.
#codereview Gil.Grib,Lee.Clark
[CL 2606146 by Marcus Wassmer in Main branch]
Fix for FShader crash while streaming a level.
- Made FShader ref counting more thread safe
- Added extra locks when unregistering the shader so that released shaders can't be found in the shader id map while a shader is being released
- Made sure FShaderType::FindShaderById adds a reference to existing shaders while serializaing inline shader maps.
[INTEGRATE] Change 2532254 by Robert.Manuszewski@Robert_Manuszewski_Raptor1 on 2015-04-30 14:18
Better fix for crashes when streaming. Making FShader AND FShaderResource handling thread safe
[CL 2538774 by Robert Manuszewski in Main branch]
#UE4 Added a Canary for FShaderResource that mimics the behavior of the one in FShader to help track down the cause of https://jira.ol.epicgames.net/browse/UE-14017
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Integrated using branch Ue4-To-UE4-Fortnite-Simple (reversed) of change#2529461 by Bob.Tellez on 2015/04/28 19:38:07.
[CL 2530497 by Bob Tellez in Main branch]
#UE4 Added an extra canary check
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Integrated using branch Ue4-To-UE4-Fortnite-Simple (reversed) of change#2527111 by Bob.Tellez on 2015/04/27 12:42:15.
[CL 2527113 by Bob Tellez in Main branch]
#UE4 Added ShaderMagic_CleaningUp to the Canary checks in FShader. This will help track down the cause of UE-14017
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Integrated using branch Ue4-To-UE4-Fortnite-Simple (reversed) of change#2524950 by Bob.Tellez on 2015/04/24 16:48:53.
[CL 2527112 by Bob Tellez in Main branch]
- Linkers are no longer UObjects. Renamed ULinker, ULinkerLoad and ULinkerSave to FLinker, FLinkerLoad, FLinkerSave respectively
- Linkers are now associated with their UPackages
- Linker version is now stored in UPackages
- Async loading is now performed on a separate thread (if platform supports it and only in cooked builds), with the exception of PostLoad which is still done on the game thread
- Added UObject::IsPostLoadThreadSafe() function to determine if PostLoad is thread safe and can be executed on the async loading thread (defaults to false)
- UObject creation is now thread safe and can be performed on any thread
- Move many of the linker/UObject globals into FUObjectThreadContext (TLS)
- GetAsyncLoadPercentage() now takes PostLoad into account
- More async loading stats
- Added AtomicallySetFlags/ClearFlags to UObject
- Made FModuleManager thread safe.
- Added FGCScopeGuard as means of preventing GC from executing from non-game thread
- It's possible to disable async loading thread through ini settings.
- Cancelling async loading will now also trigger GC
- Implemented a basic version of async streaming priorities.
Change 2410813 by Mikolaj Sieluzycki:
Change Sleep in while loop to ConditionalSleep in FMultiReaderSingleWriterGT
Change 2410734 by Mikolaj Sieluzycki:
Make FModuleManager thread safe.
Change 2399879 by Mikolaj Sieluzycki:
Basic version of async streaming priorities.
Change 2410707 by Mikolaj Sieluzycki:
Implement conditional and no stat versions of sleep.
Change 2371939 by Robert Manuszewski:
Async Loading Improvements: adding more stats (accumulators)
Change 2372403 by Robert Manuszewski:
Fixing compile errors when STATs are not enabled
Change 2371526 by Robert Manuszewski:
AsyncLoading Improvements (WIP)
Change 2407198 by Robert Manuszewski:
Re-implementing delegate fixes for Async Loading
Change 2407425 by Robert Manuszewski:
Re-implementing cancelling async loading in the async loading branch.
Change 2484362 by Robert Manuszewski:
Making it possible to disable async loading thread through ini settings.
Change 2484744 by Robert Manuszewski:
Minimizing locks in GC and other threads when handling UObjects
Change 2480190 by Robert Manuszewski:
Fixing infinite stall after canceling async loading in non-cooked builds
Change 2484268 by Robert Manuszewski:
Fixing crash when allocating permanent object pool.
Change 2489761 by Robert Manuszewski:
Fixing BulkData using linker archive on the main thread even if the linker was created on the async loading thread.
Change 2493624 by Robert Manuszewski:
Cancelling async loading will now also trigger GC
Change 2487881 by Robert Manuszewski:
Making ShaderIdMap operations thread safe.
Change 2488067 by Robert Manuszewski:
Fixing GetAsyncLoadPercentage. It will now also respect PostLoad.
Change 2458640 by Robert Manuszewski:
Fixing crash in PIE
Change 2458825 by Robert Manuszewski:
Fixing a few crashes when streaming and the package is missing.
Change 2476935 by Robert Manuszewski:
Fixing crash while async loading ANavigationData
Change 2477361 by Robert Manuszewski:
Fixing crashes in cooked game
Change 2480095 by Robert Manuszewski:
Making FUObjectArray more thread safe
Change 2475443 by Robert Manuszewski:
Re-enabling single-threaded async loading path for the editor and platforms that don't support multithreading.
Change 2475458 by Robert Manuszewski:
Making sure bulk data is only loaded on a separate thread if it's not being loaded on the async loading thread.
Change 2476661 by Robert Manuszewski:
Fixing FlushAsyncLoading not flushing everything
Change 2401089 by Jaroslaw Surowiec:
Core - Added AtomicallySetFlags/ClearFlags to UObject, added a comment to ThisThreadAtomicallyClearedRFUnreachable
[CL 2498249 by Robert Manuszewski in Main branch]
- Several GetTypeHash would produce only very narrow hash distributions, so these have been modified.
- FShaderDrawKey::GetTypeHash was particularly slow (around 4% of sampled time in Mac UT in Instruments) almost all in MemCrc32, so this has been replaced with a much simpler hash routine to bring it down to ~1% sampled time.
- FShaderDrawKey::operator== comparison order changed to try and fail earlier by testing from most-to-least varying attributes.
- Changed the way sampler-state & texture look-up works to avoid unnecessary map lookup.
#codereview michael.trepka
[CL 2493570 by Mark Satterthwaite in Main branch]
