CAtlas Class Reference

Collaboration diagram for CAtlas:

Classes
struct	SSectionKeyHash
struct	SSectionKeyEquals
struct	SSection

Public Member Functions
void	Clear (size_t TextureDimension)
void	IncreaseDimension (size_t NewTextureDimension)
bool	Add (size_t Width, size_t Height, int &PosX, int &PosY)

Private Member Functions
void	AddSection (size_t X, size_t Y, size_t W, size_t H)
void	UseSection (const SSection &Section, size_t Width, size_t Height, int &PosX, int &PosY)

Private Attributes
size_t	m_TextureDimension
std::vector< SSection >	m_vSections
std::unordered_map< std::tuple< size_t, size_t >, std::vector< SSection >, SSectionKeyHash, SSectionKeyEquals >	m_SectionsMap

Static Private Attributes
static constexpr size_t	MIN_SECTION_DIMENSION = 6
static constexpr size_t	MAX_SECTION_DIMENSION_MAPPED = 8 * MIN_SECTION_DIMENSION

Member Function Documentation

Add()

bool CAtlas::Add ( size_t Width, size_t Height, int & PosX, int & PosY )

inline

AddSection()

void CAtlas::AddSection ( size_t X, size_t Y, size_t W, size_t H )

inlineprivate

Clear()

void CAtlas::Clear ( size_t TextureDimension )

inline

IncreaseDimension()

void CAtlas::IncreaseDimension ( size_t NewTextureDimension )

inline

UseSection()

void CAtlas::UseSection ( const SSection & Section, size_t Width, size_t Height, int & PosX, int & PosY )

inlineprivate

Member Data Documentation

m_SectionsMap

std::unordered_map<std::tuple<size_t, size_t>, std::vector<SSection>, SSectionKeyHash, SSectionKeyEquals> CAtlas::m_SectionsMap

private

m_TextureDimension

size_t CAtlas::m_TextureDimension

private

m_vSections

std::vector<SSection> CAtlas::m_vSections

private

MAX_SECTION_DIMENSION_MAPPED

size_t CAtlas::MAX_SECTION_DIMENSION_MAPPED = 8 * MIN_SECTION_DIMENSION

staticconstexprprivate

Sections with larger width or height will be stored in m_vSections. Sections with width and height equal or smaller will be stored in m_SectionsMap. This achieves a good balance between the size of the vector storing all large sections and the map storing vectors of all sections with specific small sizes. Lowering this value will result in the size of m_vSections becoming the bottleneck. Increasing this value will result in the map becoming the bottleneck.

MIN_SECTION_DIMENSION

size_t CAtlas::MIN_SECTION_DIMENSION = 6

staticconstexprprivate

Sections with a smaller width or height will not be created when cutting larger sections, to prevent collecting many small, mostly unusable sections.

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The documentation for this class was generated from the following file:

• src/engine/client/text.cpp