FTiledBlock Class Reference

The FTiledBlock class provides a mean of storing very large tiled images, powered by a large number of complex algorithms allowing efficient memory usage and performances, as well as disk streaming facilities, compression systems, redundant data reuse by hashing pixel data, low overall rates in memory fragmentation, infinite or unbounded images in space and time, within reasonable range ( depends on the user available disk space and ram space ), and multithreaded operations.

Public Member Functions
	FTiledBlock (const FTiledBlock &)=delete
	FTiledBlock (FTilePool &iTilePool)
	~FTiledBlock ()
FVec2I	ChunkCoordinatesFromKey (uint64 iKey) const
FVec2I	ChunkCoordinatesFromPixelCoordinates (const FVec2I &iPos) const
void	Clear ()
void	ExtendOperativeGeometryAfterMutableChange (const FRectI &iRect)
void	GatherChunks (TArray< FLQTree * > *oVec)
uint64	KeyFromChunkCoordinates (const FVec2I &iPos) const
uint64	KeyFromPixelCoordinates (const FVec2I &iPos) const
const FRectI &	LeafGeometry () const
uint64	NumChunks () const
const FRectI &	OperativeGeometry () const
FTiledBlock &	operator= (const FTiledBlock &)=delete
FVec2I	PixelCoordinatesFromChunkCoordinates (const FVec2I &iPos) const
FVec2I	PixelCoordinatesFromKey (uint64 iKey) const
const uint8 *	QueryConstTile (const FVec2I &iPos) const
FTile **	QueryMutableTile (const FVec2I &iPos)
void	RecomputeLeafGeometry ()
void	RecomputeRootGeometry ()
const FRectI &	RootGeometry () const
void	SanitizeNow ()
void	SubstractOperativeGeometryAfterMutableChange (const FRectI &iRect)

Static Public Member Functions
static bool	IsValidPixelCoordRange (int64 iValue)

Constructor & Destructor Documentation

~FTiledBlock()

FTiledBlock::~FTiledBlock

(

)

Destructor, cleanup chunks.

FTiledBlock() [1/2]

FTiledBlock::FTiledBlock

(

FTilePool &

iTilePool

)

Constructor, initialize with zero chunks.

FTiledBlock() [2/2]

FTiledBlock::FTiledBlock ( const FTiledBlock &  )

delete

Explicitely deleted copy constructor

Member Function Documentation

ChunkCoordinatesFromKey()

FVec2I FTiledBlock::ChunkCoordinatesFromKey

(

uint64

iKey

)

const

Coordinates

ChunkCoordinatesFromPixelCoordinates()

FVec2I FTiledBlock::ChunkCoordinatesFromPixelCoordinates

(

const FVec2I &

iPos

)

const

Coordinates

Clear()

void FTiledBlock::Clear

(

)

Clear all map

ExtendOperativeGeometryAfterMutableChange()

void FTiledBlock::ExtendOperativeGeometryAfterMutableChange

(

const FRectI &

iRect

)

Process operative geometry

GatherChunks()

void FTiledBlock::GatherChunks

(

TArray< FLQTree * > *

oVec

)

Gather all chunks in an array

IsValidPixelCoordRange()

static bool FTiledBlock::IsValidPixelCoordRange ( int64  iValue )

static

check wether the input coordinate is in a valid range

KeyFromChunkCoordinates()

uint64 FTiledBlock::KeyFromChunkCoordinates

(

const FVec2I &

iPos

)

const

Coordinates

KeyFromPixelCoordinates()

uint64 FTiledBlock::KeyFromPixelCoordinates

(

const FVec2I &

iPos

)

const

Coordinates

LeafGeometry()

const FRectI& FTiledBlock::LeafGeometry

(

)

const

Return the rough leaf geometry built from all leafs

NumChunks()

uint64 FTiledBlock::NumChunks

(

)

const

Get the number of chunk entries in the map

OperativeGeometry()

const FRectI& FTiledBlock::OperativeGeometry

(

)

const

Return the operative geometry

operator=()

FTiledBlock& FTiledBlock::operator= ( const FTiledBlock &  )

delete

Explicitely deleted copy assignment operator

PixelCoordinatesFromChunkCoordinates()

FVec2I FTiledBlock::PixelCoordinatesFromChunkCoordinates

(

const FVec2I &

iPos

)

const

Coordinates

PixelCoordinatesFromKey()

FVec2I FTiledBlock::PixelCoordinatesFromKey

(

uint64

iKey

)

const

Coordinates

QueryConstTile()

const uint8* FTiledBlock::QueryConstTile

(

const FVec2I &

iPos

)

const

Query a tile for Read only

QueryMutableTile()

FTile** FTiledBlock::QueryMutableTile

(

const FVec2I &

iPos

)

Query a tile for Read Write

RecomputeLeafGeometry()

void FTiledBlock::RecomputeLeafGeometry

(

)

Manual recompute cached leaf geometry

RecomputeRootGeometry()

void FTiledBlock::RecomputeRootGeometry

(

)

Manual recompute cached root geometry

RootGeometry()

const FRectI& FTiledBlock::RootGeometry

(

)

const

Return the rough root geometry made up from chunks

SanitizeNow()

void FTiledBlock::SanitizeNow

(

)

Sanitize map, removing pure empty chunks

SubstractOperativeGeometryAfterMutableChange()

void FTiledBlock::SubstractOperativeGeometryAfterMutableChange

(

const FRectI &

iRect

)

Process operative geometry