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  3. FTexturePlatformData

FTexturePlatformData

Platform-specific data used by the texture resource at runtime.

API > API/Runtime > API/Runtime/Engine

Platform-specific data used by the texture resource at runtime.

   
Name FTexturePlatformData
Type struct
Header File /Engine/Source/Runtime/Engine/Classes/Engine/Texture.h
Include Path #include "Engine/Texture.h"

Syntax

USTRUCT ()  
struct FTexturePlatformData

Constructors

Name Remarks Include Path Unreal Specifiers

FTexturePlatformData()

 Default constructor. Engine/Texture.h  

Destructors

Name Remarks Include Path Unreal Specifiers

~FTexturePlatformData()

 Destructor. Engine/Texture.h  

Structs

Name Remarks
FStructuredDerivedDataKey  
FTextureEncodeResultMetadata Stores information about how we generated this encoded texture.

Constants

Name Type Remarks Include Path
BitMask_CubeMap uint32   Engine/Texture.h
BitMask_HasCpuCopy uint32   Engine/Texture.h
BitMask_HasOptData uint32   Engine/Texture.h
BitMask_NumSlices uint32   Engine/Texture.h

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
AsyncTask FTextureAsyncCacheDerivedDataTask * Async cache task if one is outstanding. Engine/Texture.h  
CPUCopy TRefCountPtr< const struct FSharedImage > This is only valid if the texture availability is CPU only, see GetHasCpuCopy() Engine/Texture.h  
DerivedDataKey TVariant< FString, UE::DerivedData::FCacheKeyProxy > The key associated with this derived data. Engine/Texture.h  
FetchFirstDerivedDataKey TVariant< FString, FStructuredDerivedDataKey >   Engine/Texture.h  
FetchOrBuildDerivedDataKey TVariant< FString, FStructuredDerivedDataKey > The keys for both types of fetches. Engine/Texture.h  
Mips TIndirectArray< struct FTexture2DMipMap > Mip data or VT data. one or the other. Engine/Texture.h  
OptData FOptTexturePlatformData Additional data required by some platforms. Engine/Texture.h  
PackedData uint32 Packed bits [b31: CubeMap], [b30: HasOptData], [b29-0: NumSlices]. See bit masks below. Engine/Texture.h  
PixelFormat EPixelFormat Format in which mip data is stored. Engine/Texture.h  
PreEncodeMipsHash uint64 When in the editor we have some data that is stored in the derived data that we don't want to save in the runtime cooked data: Engine/Texture.h  
ResultMetadata FTextureEncodeResultMetadata   Engine/Texture.h  
SizeX int32 Width of the texture. Engine/Texture.h  
SizeY int32 Height of the texture. Engine/Texture.h  
VTData FVirtualTextureBuiltData *   Engine/Texture.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

bool AreDerivedMipsAvailable ( FStringView Context
) const

   Engine/Texture.h  
  Engine/Texture.h  
  Engine/Texture.h  

bool AreDerivedVTChunksAvailable ( FStringView Context
) const

   Engine/Texture.h  

void Cache ( UTexture& InTexture,
const FTextureBuildSettings* InSettingsPerLayerFetchFirst,
const FTextureBuildSettings* InSettingsPerLayerFetchOrBuild,
const FTexturePlatformData::FTextureEncodeResultMetadata* OutResultMetadataPerLayerFetchFirst,
const FTexturePlatformData::FTextureEncodeResultMetadata* OutResultMetadataPerLayerFetchOrBuild,
uint32 InFlags,
ITextureCompressorModule* Compressor
)

 Compresses the texture using the given compressor and adds the result to the DDC. Engine/Texture.h  

bool CanBeLoaded()

 Return true if at least one mip can be loaded either from DDC or disk. Engine/Texture.h  

void CancelCache()

   Engine/Texture.h  

void FinishCache()

   Engine/Texture.h  

FString GetDerivedDataMipKeyString ( int32 MipIndex,
const FTexture2DMipMap& Mip
) const

   Engine/Texture.h  

int32 GetExtData()

   Engine/Texture.h  

bool GetHasCpuCopy()

   Engine/Texture.h  

bool GetHasOptData()

   Engine/Texture.h  

EPixelFormat GetLayerPixelFormat ( uint32 LayerIndex
) const

   Engine/Texture.h  

int32 GetNumMipsInTail()

   Engine/Texture.h  

int32 GetNumNonOptionalMips()

 Return the number of mips that streamable but not optional. Engine/Texture.h  

int32 GetNumNonStreamingMips ( bool bIsStreamingPossible
) const

 Return the number of mips that are not streamable. Engine/Texture.h  

int32 GetNumSlices()

   Engine/Texture.h  

int32 GetNumVTMips()

 Only because we don't want to expose FVirtualTextureBuiltData. Engine/Texture.h  

int64 GetPayloadSize ( int32 MipBias
) const

 Return the size of the texture pixel data in bytes, not including headers or alignment. Engine/Texture.h  

bool IsAsyncWorkComplete()

   Engine/Texture.h  

bool IsCubemap()

   Engine/Texture.h  

bool IsReadyForAsyncPostLoad()

 Return whether TryLoadMips() would stall because async loaded mips are not yet available. Engine/Texture.h  

TFuture< TTuple< uint64, uint64 > > LaunchEstimateOnDiskSizeTask ( FOodleDataCompression::ECompressor InOodleCompressor,
FOodleDataCompression::ECompressionLevel InOodleCompressionLevel,
uint32 InCompressionBlockSize,
FStringView InDebugContext
)

   Engine/Texture.h  

void Reset()

 Clears the data such that a new Cache() call can load new data in to the structure. Engine/Texture.h  

void Serialize ( FArchive& Ar,
UTexture* Owner
)

 Serialization. Engine/Texture.h  

void SerializeCooked ( FArchive& Ar,
UTexture* Owner,
bool bStreamable,
const bool bSerializeMipData
)

 Serialization for cooked builds. Engine/Texture.h  

void SetHasCpuCopy ( bool bInHasCpuCopy
)

   Engine/Texture.h  

void SetIsCubemap ( bool bCubemap
)

   Engine/Texture.h  

void SetNumSlices ( int32 NumSlices
)

   Engine/Texture.h  

void SetOptData ( FOptTexturePlatformData Data
)

   Engine/Texture.h  

void SetPackedData ( int32 InNumSlices,
bool bInHasOptData,
bool bInCubeMap,
bool bInHasCpuCopy
)

   Engine/Texture.h  

void TouchStreamingMipDDCData ( int32 InMipCount,
FStringView DebugContext
)

   Engine/Texture.h  

bool TryCancelCache()

   Engine/Texture.h  

bool TryInlineMipData ( int32 FirstMipToLoad,
FStringView DebugContext
)

   Engine/Texture.h  

bool TryLoadMips ( int32 FirstMipToLoad,
void** OutMipData,
FStringView DebugContext
)

 Try to load mips from the derived data cache. Engine/Texture.h  

bool TryLoadMipsWithSizes ( int32 FirstMipToLoad,
void** OutMipData,
int64* OutMipSize,
FStringView DebugContext
)

   Engine/Texture.h  

Static

Name Remarks Include Path Unreal Specifiers

static UE::DerivedData::FValueId MakeMipId ( int32 MipIndex
)

   Engine/Texture.h  

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