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FCompression::CompressMemoryBound

Thread-safe abstract compression routine to query memory requirements for a compression operation.

Windows

MacOS

Linux

References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Misc/Compression.h
Include	#include "Misc/Compression.h"
Source	/Engine/Source/Runtime/Core/Private/Misc/Compression.cpp

Syntax

static int32 CompressMemoryBound
(
    FName FormatName,
    int32 UncompressedSize,
    ECompressionFlags Flags,
    int32 CompressionData
)

Remarks

Thread-safe abstract compression routine to query memory requirements for a compression operation.

Returns

The maximum possible bytes needed for compression of data buffer of size UncompressedSize

Parameters

Parameter	Description
Flags	Flags to control what method to use and optionally control memory vs speed
UncompressedSize	Size of uncompressed data in bytes
BitWindow	Bit window to use in compression

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