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Flags controlling [de]compression Make sure to update VerifyCompressionFlagsValid after changing these values.
| Name | ECompressionFlags |
| Type | enum |
| Header File | /Engine/Source/Runtime/Core/Public/Misc/CompressionFlags.h |
| Include Path | #include "Misc/CompressionFlags.h" |
Syntax
enum ECompressionFlags
{
COMPRESS_None = 0x00,
COMPRESS_ZLIB_DEPRECATED = 0x01,
COMPRESS_GZIP_DEPRECATED = 0x02,
COMPRESS_Custom_DEPRECATED = 0x04,
COMPRESS_DeprecatedFormatFlagsMask = 0xF,
COMPRESS_NoFlags = 0x00,
COMPRESS_BiasMemory = 0x10,
COMPRESS_BiasSize = COMPRESS_BiasMemory,
COMPRESS_BiasSpeed = 0x20,
COMPRESS_SourceIsPadded = 0x80,
COMPRESS_OptionsFlagsMask = 0xF0,
COMPRESS_ForPackaging = 0x100,
COMPRESS_ForPurposeMask = 0xF00,
}
Values
| Name | Remarks |
|---|---|
| COMPRESS_None | No flags |
| COMPRESS_ZLIB_DEPRECATED | Compress with ZLIB - DEPRECATED, USE FNAME |
| COMPRESS_GZIP_DEPRECATED | Compress with GZIP - DEPRECATED, USE FNAME |
| COMPRESS_Custom_DEPRECATED | Compress with user defined callbacks - DEPRECATED, USE FNAME |
| COMPRESS_DeprecatedFormatFlagsMask | Joint of the previous ones to determine if old flags are being used |
| COMPRESS_NoFlags | No flags specified / |
| COMPRESS_BiasMemory | Prefer compression that compresses smaller (ONLY VALID FOR COMPRESSION) |
| COMPRESS_BiasSize | |
| COMPRESS_BiasSpeed | Prefer compression that compresses faster (ONLY VALID FOR COMPRESSION) |
| COMPRESS_SourceIsPadded | Is the source buffer padded out (ONLY VALID FOR UNCOMPRESS) |
| COMPRESS_OptionsFlagsMask | Set of flags that are options are still allowed |
| COMPRESS_ForPackaging | Indicate this compress call is for Packaging (pak/iostore) |
| COMPRESS_ForPurposeMask |