- Only the first 20 bytes of the RawHash field in the header will be consumed.
- In a subsequent change, the last 12 bytes of the RawHash field will be set to zero for new compressed buffers.
- Leveraged composite buffers to avoid performing an extra copy of compressed blocks.
- Updated FBlockEncoder::Compress to always use ParallelFor.
- Added ParallelForWithPreWorkWithTaskContext.
#preflight 622ba3869b7ce6ea5d44b7ab
#rb Zousar.Shaker
#rnx
[CL 19360767 by Devin Doucette in ue5-main branch]
special case 1 block fast path
in multi-block case, run hash on thread too
#preflight 621e3c3ead75a7f58fc2a39e
#rb fabian.giesen
[CL 19207211 by charles bloom in ue5-main branch]
still defaults to 2 for game runtimes
significant speedup in iostore compression at fast compress levels
#preflight 620be31f01253d2e19e2ad2d
#rb pj.kack
[CL 18999615 by charles bloom in ue5-main branch]
#rb fabian.giesen
#preflight
#ROBOMERGE-AUTHOR: charles.bloom
#ROBOMERGE-SOURCE: CL 18599232 in //UE5/Release-5.0/... via CL 18599279 via CL 18599348
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v899-18417669)
[CL 18599390 by charles bloom in ue5-main branch]
- Provides about 8% runtime memory savings (in local tests).
- Also, adds more compression types for shaders.
- Impact on the shader compilation (in SCWs) seems to be negligible in local tests.
#rb Devin.Doucette, Charles.Bloom
[REVIEW] [at]Devin.Doucette, [at]Charles.Bloom, [at]Jason.Nadro
#jira UE-136845
#ROBOMERGE-AUTHOR: arciel.rekman
#ROBOMERGE-SOURCE: CL 18502862 via CL 18503105 via CL 18503112 via CL 18505939 via CL 18505950
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v899-18417669)
[CL 18505961 by arciel rekman in ue5-release-engine-test branch]
The size check was removed from the decoders during the addition of FCompressedBufferReader, but is needed to avoid asserts when attempting to decompress a buffer that is too small.
#rb Paul.Chipchase
#rnx
#preflight 61b8a79d2e65a1df0462c95b
#ROBOMERGE-AUTHOR: devin.doucette
#ROBOMERGE-SOURCE: CL 18457919 in //UE5/Release-5.0/... via CL 18457926
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v898-18417669)
[CL 18457953 by devin doucette in ue5-release-engine-test branch]
Requiring the use of a separate reader type makes it more likely that readers will be reused, and makes it easier to audit reader usage going forward. Reusing readers is desirable to reduce the number of large temporary allocations made during partial decompression of a buffer.
- Added FCompressedBuffer::Save(FArchive&) and renamed FromCompressed(FArchive&) to Load(FArchive&).
- Added FCompressedBufferReaderSourceScope to set a buffer source within a scope.
- Added proper bounds checks to FNoneDecoder.
- Store the header checksum on the decoder context to allow raw blocks to be reused across sources.
- Decode the header on the fly to avoid a temporary header allocation when the header is in contiguous memory.
#rb Zousar.Shaker
#rnx
#preflight 61a98d53800738dbfbc84c73
#ROBOMERGE-AUTHOR: devin.doucette
#ROBOMERGE-SOURCE: CL 18382211 in //UE5/Release-5.0/... via CL 18382310
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v896-18170469)
[CL 18382377 by devin doucette in ue5-release-engine-test branch]
This represents UE4/Main @18073326, Release-5.0 @18081140 and Dev-PerfTest @18045971
[CL 18081471 by aurel cordonnier in ue5-release-engine-test branch]
This represents UE4/Main @17911760, Release-5.0 @17915875 and Dev-PerfTest @17914035
[CL 17918595 by aurel cordonnier in ue5-release-engine-test branch]
because UnrealPak as a program can't read project config hierarchy
#rb dan.thompson,josh.adams
#ROBOMERGE-AUTHOR: charles.bloom
#ROBOMERGE-SOURCE: CL 17464507 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v870-17433530)
[CL 17464538 by charles bloom in ue5-release-engine-test branch]
