ImSpanAllocator< CHUNKS > Struct Template Reference

#include <src/imgui/imgui_internal.h>

Public Member Functions
	ImSpanAllocator ()
void	Reserve (int n, size_t sz, int a=4)
int	GetArenaSizeInBytes ()
void	SetArenaBasePtr (void *base_ptr)
void *	GetSpanPtrBegin (int n)
void *	GetSpanPtrEnd (int n)
template<typename T >
void	GetSpan (int n, ImSpan< T > *span)

Public Attributes
char *	BasePtr
int	CurrOff
int	CurrIdx
int	Offsets [CHUNKS]
int	Sizes [CHUNKS]

Detailed Description

template<int CHUNKS>
struct ImSpanAllocator< CHUNKS >

Constructor & Destructor Documentation

ImSpanAllocator()

template<int CHUNKS>

ImSpanAllocator< CHUNKS >::ImSpanAllocator ( )

inline

{ memset(this, 0, sizeof(*this)); }

Member Function Documentation

GetArenaSizeInBytes()

template<int CHUNKS>

int ImSpanAllocator< CHUNKS >::GetArenaSizeInBytes ( )

inline

{ return CurrOff; }

References ImSpanAllocator< CHUNKS >::CurrOff.

Referenced by ImGui::TableBeginInitMemory().

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GetSpan()

template<int CHUNKS>

template<typename T >

void ImSpanAllocator< CHUNKS >::GetSpan ( int  n, ImSpan< T > *  span  )

inline

{ span->set((T*)GetSpanPtrBegin(n), (T*)GetSpanPtrEnd(n)); }

References ImSpanAllocator< CHUNKS >::GetSpanPtrBegin(), ImSpanAllocator< CHUNKS >::GetSpanPtrEnd(), and ImSpan< T >::set().

Referenced by ImGui::TableBeginInitMemory().

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GetSpanPtrBegin()

template<int CHUNKS>

void * ImSpanAllocator< CHUNKS >::GetSpanPtrBegin ( int  n )

inline

{ IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n]); }

References ImSpanAllocator< CHUNKS >::BasePtr, ImSpanAllocator< CHUNKS >::CurrIdx, IM_ASSERT, and ImSpanAllocator< CHUNKS >::Offsets.

Referenced by ImSpanAllocator< CHUNKS >::GetSpan().

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GetSpanPtrEnd()

template<int CHUNKS>

void * ImSpanAllocator< CHUNKS >::GetSpanPtrEnd ( int  n )

inline

{ IM_ASSERT(n >= 0 && n < CHUNKS && CurrIdx == CHUNKS); return (void*)(BasePtr + Offsets[n] + Sizes[n]); }

References ImSpanAllocator< CHUNKS >::BasePtr, ImSpanAllocator< CHUNKS >::CurrIdx, IM_ASSERT, ImSpanAllocator< CHUNKS >::Offsets, and ImSpanAllocator< CHUNKS >::Sizes.

Referenced by ImSpanAllocator< CHUNKS >::GetSpan().

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Reserve()

template<int CHUNKS>

void ImSpanAllocator< CHUNKS >::Reserve ( int  n, size_t  sz, int  a = 4  )

inline

{ IM_ASSERT(n == CurrIdx && n < CHUNKS); CurrOff = IM_MEMALIGN(CurrOff, a); Offsets[n] = CurrOff; Sizes[n] = (int)sz; CurrIdx++; CurrOff += (int)sz; }

References ImSpanAllocator< CHUNKS >::CurrIdx, ImSpanAllocator< CHUNKS >::CurrOff, IM_ASSERT, IM_MEMALIGN, ImSpanAllocator< CHUNKS >::Offsets, and ImSpanAllocator< CHUNKS >::Sizes.

Referenced by ImGui::TableBeginInitMemory().

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SetArenaBasePtr()

template<int CHUNKS>

void ImSpanAllocator< CHUNKS >::SetArenaBasePtr ( void *  base_ptr )

inline

{ BasePtr = (char*)base_ptr; }

References ImSpanAllocator< CHUNKS >::BasePtr.

Referenced by ImGui::TableBeginInitMemory().

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Member Data Documentation

BasePtr

template<int CHUNKS>

char* ImSpanAllocator< CHUNKS >::BasePtr

Referenced by ImSpanAllocator< CHUNKS >::GetSpanPtrBegin(), ImSpanAllocator< CHUNKS >::GetSpanPtrEnd(), and ImSpanAllocator< CHUNKS >::SetArenaBasePtr().

CurrIdx

template<int CHUNKS>

int ImSpanAllocator< CHUNKS >::CurrIdx

Referenced by ImSpanAllocator< CHUNKS >::GetSpanPtrBegin(), ImSpanAllocator< CHUNKS >::GetSpanPtrEnd(), and ImSpanAllocator< CHUNKS >::Reserve().

CurrOff

template<int CHUNKS>

int ImSpanAllocator< CHUNKS >::CurrOff

Referenced by ImSpanAllocator< CHUNKS >::GetArenaSizeInBytes(), and ImSpanAllocator< CHUNKS >::Reserve().

Offsets

template<int CHUNKS>

int ImSpanAllocator< CHUNKS >::Offsets[CHUNKS]

Referenced by ImSpanAllocator< CHUNKS >::GetSpanPtrBegin(), ImSpanAllocator< CHUNKS >::GetSpanPtrEnd(), and ImSpanAllocator< CHUNKS >::Reserve().

Sizes

template<int CHUNKS>

int ImSpanAllocator< CHUNKS >::Sizes[CHUNKS]

Referenced by ImSpanAllocator< CHUNKS >::GetSpanPtrEnd(), and ImSpanAllocator< CHUNKS >::Reserve().

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

• src/imgui/imgui_internal.h