Class CoreUnsafeUtils

Static class with unsafe utility functions.

Inheritance

object

CoreUnsafeUtils

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: UnityEngine.Rendering

Assembly: Unity.RenderPipelines.Core.Runtime.dll

Syntax

public static class CoreUnsafeUtils

Methods

CombineHashes(int, Hash128*, Hash128*)

Combine hashes.

Declaration

public static void CombineHashes(int count, Hash128* hashes, Hash128* outHash)

Parameters

Type	Name	Description
int	count	Number of hash to combine.
Hash128*	hashes	Hashes to combine.
Hash128*	outHash	Hash to update.

CombineHashes<TValue, TGetter>(int, void*, Hash128*)

Combine all of the hashes of a collection of hashes.

Declaration

public static void CombineHashes<TValue, TGetter>(int count, void* hashes, Hash128* outHash) where TValue : struct where TGetter : struct, CoreUnsafeUtils.IKeyGetter<TValue, Hash128>

Parameters

Type	Name	Description
int	count	Number of hash to combine.
void*	hashes	Hashes to combine.
Hash128*	outHash	Hash to update.

Type Parameters

Name	Description
TValue	Value type.
TGetter	Getter type.

CompareHashes(int, Hash128*, int, Hash128*, int*, int*, out int, out int)

Compare hashes.

Declaration

public static int CompareHashes(int oldHashCount, Hash128* oldHashes, int newHashCount, Hash128* newHashes, int* addIndices, int* removeIndices, out int addCount, out int remCount)

Parameters

Type	Name	Description
int	oldHashCount	Number of hashes in oldHashes.
Hash128*	oldHashes	Previous hashes to compare.
int	newHashCount	Number of hashes in newHashes.
Hash128*	newHashes	New hashes to compare.
int*	addIndices	Indices of element to add in newHashes will be written here.
int*	removeIndices	Indices of element to remove in oldHashes will be written here.
int	addCount	Number of elements to add will be written here.
int	remCount	Number of elements to remove will be written here.

Returns

Type	Description
int	The number of operation to perform ( addCount + remCount )

CompareHashes<TOldValue, TOldGetter, TNewValue, TNewGetter>(int, void*, int, void*, int*, int*, out int, out int)

Compare hashes of two collections and provide a list of indices removeIndices to remove in oldHashes and a list of indices addIndices to add in newHashes.

Assumes that newHashes and oldHashes are sorted.

Declaration

public static int CompareHashes<TOldValue, TOldGetter, TNewValue, TNewGetter>(int oldHashCount, void* oldHashes, int newHashCount, void* newHashes, int* addIndices, int* removeIndices, out int addCount, out int remCount) where TOldValue : struct where TOldGetter : struct, CoreUnsafeUtils.IKeyGetter<TOldValue, Hash128> where TNewValue : struct where TNewGetter : struct, CoreUnsafeUtils.IKeyGetter<TNewValue, Hash128>

Parameters

Type	Name	Description
int	oldHashCount	Number of hashes in oldHashes.
void*	oldHashes	Previous hashes to compare.
int	newHashCount	Number of hashes in newHashes.
void*	newHashes	New hashes to compare.
int*	addIndices	Indices of element to add in newHashes will be written here.
int*	removeIndices	Indices of element to remove in oldHashes will be written here.
int	addCount	Number of elements to add will be written here.
int	remCount	Number of elements to remove will be written here.

Returns

Type	Description
int	The number of operation to perform ( addCount + remCount )

Type Parameters

Name	Description
TOldValue	Old value type.
TOldGetter	Old getter type.
TNewValue	New value type.
TNewGetter	New getter type.

CopyTo<T>(List<T>, void*, int)

Extension method to copy elements of a list into a buffer.

Declaration

public static void CopyTo<T>(this List<T> list, void* dest, int count) where T : struct

Parameters

Type	Name	Description
List<T>	list	Input List.
void*	dest	Destination buffer.
int	count	Number of elements to copy.

Type Parameters

Name	Description
T	Type of the provided List.

CopyTo<T>(T[], void*, int)

Extension method to copy elements of an array into a buffer.

Declaration

public static void CopyTo<T>(this T[] list, void* dest, int count) where T : struct

Parameters

Type	Name	Description
T[]	list	Input List.
void*	dest	Destination buffer.
int	count	Number of elements to copy.

Type Parameters

Name	Description
T	Type of the provided array.

HaveDuplicates(int[])

Checks for duplicates in an array.

Declaration

public static bool HaveDuplicates(int[] arr)

Parameters

Type	Name	Description
int[]	arr	Input array.

Returns

Type	Description
bool	True if there is any duplicate in the input array.

IndexOf<T>(void*, int, T)

Index of an element in a buffer.

Declaration

public static int IndexOf<T>(void* data, int count, T v) where T : struct, IEquatable<T>

Parameters

Type	Name	Description
void*	data	Data buffer.
int	count	Number of elements.
T	v	Element to test against.

Returns

Type	Description
int	The first index of the provided element.

Type Parameters

Name	Description
T	Data type.

InsertionSort(uint[], int)

Insertion sort

Declaration

public static void InsertionSort(uint[] arr, int sortSize)

Parameters

Type	Name	Description
uint[]	arr	Array to sort.
int	sortSize	Size of the array to sort. If greater than array capacity, it will get clamped.

InsertionSort(NativeArray<uint>, int)

Insertion sort

Declaration

public static void InsertionSort(NativeArray<uint> arr, int sortSize)

Parameters

Type	Name	Description
NativeArray<uint>	arr	Array to sort.
int	sortSize	Size of the array to sort. If greater than array capacity, it will get clamped.

MergeSort(uint[], int, ref uint[])

Merge sort - non recursive

Declaration

public static void MergeSort(uint[] arr, int sortSize, ref uint[] supportArray)

Parameters

Type	Name	Description
uint[]	arr	Array to sort.
int	sortSize	Size of the array to sort. If greater than array capacity, it will get clamped.
uint[]	supportArray	Secondary array reference, used to store intermediate merge results.

MergeSort(NativeArray<uint>, int, ref NativeArray<uint>)

Merge sort - non recursive

Declaration

public static void MergeSort(NativeArray<uint> arr, int sortSize, ref NativeArray<uint> supportArray)

Parameters

Type	Name	Description
NativeArray<uint>	arr	Array to sort.
int	sortSize	Size of the array to sort. If greater than array capacity, it will get clamped.
NativeArray<uint>	supportArray	Secondary array reference, used to store intermediate merge results.

QuickSort(uint[], int, int)

Quick Sort

Declaration

public static void QuickSort(uint[] arr, int left, int right)

Parameters

Type	Name	Description
uint[]	arr	uint array.
int	left	Left boundary.
int	right	Left boundary.

QuickSort<T>(int, void*)

Quick sort.

Declaration

public static void QuickSort<T>(int count, void* data) where T : struct, IComparable<T>

Parameters

Type	Name	Description
int	count	Number of element.
void*	data	Buffer to sort.

Type Parameters

Name	Description
T	Type to compare.

QuickSort<TValue, TKey, TGetter>(int, void*)

Quick sort.

Declaration

public static void QuickSort<TValue, TKey, TGetter>(int count, void* data) where TValue : struct where TKey : struct, IComparable<TKey> where TGetter : struct, CoreUnsafeUtils.IKeyGetter<TValue, TKey>

Parameters

Type	Name	Description
int	count	Number of element.
void*	data	Data to sort.

Type Parameters

Name	Description
TValue	Value type.
TKey	Key Type.
TGetter	Getter type.

QuickSort<TValue, TKey, TGetter>(void*, int, int)

Quick sort.

Declaration

public static void QuickSort<TValue, TKey, TGetter>(void* data, int left, int right) where TValue : struct where TKey : struct, IComparable<TKey> where TGetter : struct, CoreUnsafeUtils.IKeyGetter<TValue, TKey>

Parameters

Type	Name	Description
void*	data	Data to sort.
int	left	Left boundary.
int	right	Right boundary.

Type Parameters

Name	Description
TValue	Value type.
TKey	Key Type.
TGetter	Getter type.

RadixSort(uint[], int, ref uint[], int)

Radix sort or bucket sort, stable and non in place.

Declaration

public static void RadixSort(uint[] arr, int sortSize, ref uint[] supportArray, int radixBits = 8)

Parameters

Type	Name	Description
uint[]	arr	Array to sort.
int	sortSize	Size of the array to sort. If greater than array capacity, it will get clamped.
uint[]	supportArray	Array of uints that is used for support data. The algorithm will automatically allocate it if necessary.
int	radixBits	Number of bits to use for each bucket. Can only be 8, 4 or 2.

RadixSort(NativeArray<uint>, int, ref NativeArray<uint>, int)

Radix sort or bucket sort, stable and non in place.

Declaration

public static void RadixSort(NativeArray<uint> array, int sortSize, ref NativeArray<uint> supportArray, int radixBits = 8)

Parameters

Type	Name	Description
NativeArray<uint>	array	Array to sort.
int	sortSize	Size of the array to sort. If greater than array capacity, it will get clamped.
NativeArray<uint>	supportArray	Array of uints that is used for support data. The algorithm will automatically allocate it if necessary.
int	radixBits	Number of bits to use for each bucket. Can only be 8, 4 or 2.