Class Buffer

Espace de noms

easyar

Buffer stocke un raw byte array et peut etre utilise pour acceder a image data. In the Java API, you can get the buffer from Image and then copy data to a Java byte array. In all versions of EasyAR Sense, you can access image data. Refer to Image.

Buffer

Méthodes

wrap

Encapsule a raw memory block of a specified length. When Buffer is fully released, the deleter callback is called to execute user-defined memory destruction behavior. deleter must be thread-safe.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

void easyar_Buffer_wrap(void * ptr, int size, easyar_FunctorOfVoid deleter, easyar_Buffer * * Return)

static std::shared_ptr<Buffer> wrap(void * ptr, int size, std::function<void()> deleter)

public static @Nonnull Buffer wrap(long ptr, int size, @Nonnull FunctorOfVoid deleter)

companion object fun wrap(ptr: Long, size: Int, deleter: FunctorOfVoid): Buffer

+ (easyar_Buffer *)wrap:(void *)ptr size:(int)size deleter:(void (^)())deleter

public static func wrap(_ ptr: OpaquePointer?, _ size: Int32, _ deleter: @escaping () -> Void) -> Buffer

public static Buffer wrap(IntPtr ptr, int size, Action deleter)

Paramètres

Nom	Type	Description
ptr	IntPtr
size	Int32
deleter	Action

Retours

Type	Description
Buffer

create

Cree a Buffer with the specified byte length.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

void easyar_Buffer_create(int size, easyar_Buffer * * Return)

static std::shared_ptr<Buffer> create(int size)

public static @Nonnull Buffer create(int size)

companion object fun create(size: Int): Buffer

+ (easyar_Buffer *)create:(int)size

public static func create(_ size: Int32) -> Buffer

public static Buffer create(int size)

Paramètres

Nom	Type	Description
size	Int32

Retours

Type	Description
Buffer

data

Retourne the raw memory address.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

void * easyar_Buffer_data(const easyar_Buffer * This)

void * data()

public long data()

fun data(): Long

- (void *)data

public func data() -> OpaquePointer?

public virtual IntPtr data()

Retours

Type	Description
IntPtr

size

Longueur en octets of the Buffer.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

int easyar_Buffer_size(const easyar_Buffer * This)

int size()

public int size()

fun size(): Int

- (int)size

public func size() -> Int32

public virtual int size()

Retours

Type	Description
Int32

memoryCopy

Copie raw memory. Mainly used for languages or environments with incomplete memory operations.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

void easyar_Buffer_memoryCopy(void * src, void * dest, int length)

static void memoryCopy(void * src, void * dest, int length)

public static void memoryCopy(long src, long dest, int length)

companion object fun memoryCopy(src: Long, dest: Long, length: Int): Unit

+ (void)memoryCopy:(void *)src dest:(void *)dest length:(int)length

public static func memoryCopy(_ src: OpaquePointer?, _ dest: OpaquePointer?, _ length: Int32) -> Void

public static void memoryCopy(IntPtr src, IntPtr dest, int length)

Paramètres

Nom	Type	Description
src	IntPtr
dest	IntPtr
length	Int32

Retours

Type	Description
Void

tryCopyFrom

Tente de copier data from a raw memory address to Buffer. Si la copy reussit, retourne true; sinon retourne false. Failure reasons include: the source data range or target data range exceeds the available range.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

bool easyar_Buffer_tryCopyFrom(easyar_Buffer * This, void * src, int srcIndex, int index, int length)

bool tryCopyFrom(void * src, int srcIndex, int index, int length)

public boolean tryCopyFrom(long src, int srcIndex, int index, int length)

fun tryCopyFrom(src: Long, srcIndex: Int, index: Int, length: Int): Boolean

- (bool)tryCopyFrom:(void *)src srcIndex:(int)srcIndex index:(int)index length:(int)length

public func tryCopyFrom(_ src: OpaquePointer?, _ srcIndex: Int32, _ index: Int32, _ length: Int32) -> Bool

public virtual bool tryCopyFrom(IntPtr src, int srcIndex, int index, int length)

Paramètres

Nom	Type	Description
src	IntPtr
srcIndex	Int32
index	Int32
length	Int32

Retours

Type	Description
Boolean

tryCopyTo

Tente de copier data from Buffer to a raw memory address. Si la copy reussit, retourne true; sinon retourne false. Failure reasons include: the source data range or target data range exceeds the available range.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

bool easyar_Buffer_tryCopyTo(easyar_Buffer * This, int index, void * dest, int destIndex, int length)

bool tryCopyTo(int index, void * dest, int destIndex, int length)

public boolean tryCopyTo(int index, long dest, int destIndex, int length)

fun tryCopyTo(index: Int, dest: Long, destIndex: Int, length: Int): Boolean

- (bool)tryCopyTo:(int)index dest:(void *)dest destIndex:(int)destIndex length:(int)length

public func tryCopyTo(_ index: Int32, _ dest: OpaquePointer?, _ destIndex: Int32, _ length: Int32) -> Bool

public virtual bool tryCopyTo(int index, IntPtr dest, int destIndex, int length)

Paramètres

Nom	Type	Description
index	Int32
dest	IntPtr
destIndex	Int32
length	Int32

Retours

Type	Description
Boolean

partition

Cree a sub-Buffer and references the original Buffer. A Buffer is released only after all sub-Buffers are released.

• c
• cpp
• java
• kotlin
• objective-c
• swift
• csharp

void easyar_Buffer_partition(easyar_Buffer * This, int index, int length, easyar_Buffer * * Return)

std::shared_ptr<Buffer> partition(int index, int length)

public @Nonnull Buffer partition(int index, int length)

fun partition(index: Int, length: Int): Buffer

- (easyar_Buffer *)partition:(int)index length:(int)length

public func partition(_ index: Int32, _ length: Int32) -> Buffer

public virtual Buffer partition(int index, int length)

Paramètres

Nom	Type	Description
index	Int32
length	Int32

Retours

Type	Description
Buffer

wrapByteArray

Encapsule a byte array.

• java
• kotlin
• csharp

public static @Nonnull Buffer wrapByteArray(byte @Nonnull[] bytes)

companion object fun wrapByteArray(bytes: Array<Byte>): Buffer

public static Buffer wrapByteArray(byte[] bytes)

Paramètres

Nom	Type	Description
bytes

Retours

Type	Description
Buffer

wrapByteArray

Encapsule a byte array. You can specify the start position and length, specify whether the Buffer is read-only or read-write (a read-only Buffer may release faster), and specify a deleter callback. When Buffer is fully released, the deleter callback is called to execute user-defined memory destruction behavior. deleter must be thread-safe.

• java
• kotlin

public static @Nonnull Buffer wrapByteArray(byte @Nonnull[] bytes, int index, int length, boolean readOnly, @Nonnull FunctorOfVoid deleter)

companion object fun wrapByteArray(bytes: Array<Byte>, index: Int, length: Int, readOnly: Boolean, deleter: FunctorOfVoid): Buffer

Paramètres

Nom	Type	Description
bytes
index	Int32
length	Int32
readOnly	Boolean
deleter	Action

Retours

Type	Description
Buffer

wrapByteArray

Encapsule a byte array. You can specify the start position and length.

• csharp

public static Buffer wrapByteArray(byte[] bytes, int index, int length)

Paramètres

Nom	Type	Description
bytes
index	Int32
length	Int32

Retours

Type	Description
Buffer

wrapByteArray

Encapsule a byte array. You can specify the start position and length, and specify a deleter callback. When Buffer is fully released, the deleter callback is called to execute user-defined memory destruction behavior. deleter must be thread-safe.

• csharp

public static Buffer wrapByteArray(byte[] bytes, int index, int length, Action deleter)

Paramètres

Nom	Type	Description
bytes
index	Int32
length	Int32
deleter	Action

Retours

Type	Description
Buffer

wrapBuffer

Encapsule a java.nio.Buffer.

• java
• kotlin

public static @Nonnull Buffer wrapBuffer(java.nio.@Nonnull Buffer directBuffer)

companion object fun wrapBuffer(directBuffer: java.nio.Buffer): Buffer

Paramètres

Nom	Type	Description
directBuffer

Retours

Type	Description
Buffer

wrapBuffer

Encapsule a java.nio.Buffer. You can specify a deleter callback. When Buffer is fully released, the deleter callback is called to execute user-defined memory destruction behavior. deleter must be thread-safe.

• java
• kotlin

public static @Nonnull Buffer wrapBuffer(java.nio.@Nonnull Buffer directBuffer, @Nonnull FunctorOfVoid deleter)

companion object fun wrapBuffer(directBuffer: java.nio.Buffer, deleter: Action): Buffer

Paramètres

Nom	Type	Description
directBuffer
deleter	Action

Retours

Type	Description
Buffer

copyFromByteArray

Copie data from a byte array to Buffer. Si la copy echoue, une exception est levee. Failure reasons include: the source data range or target data range exceeds the available range.

• java
• kotlin
• csharp

public void copyFromByteArray(byte @Nonnull[] src)

fun copyFromByteArray(src: Array<Byte>): Unit

public void copyFromByteArray(byte[] src)

Paramètres

Nom	Type	Description
src

copyFromByteArray

Copie data from a byte array to Buffer. Si la copy echoue, une exception est levee. Failure reasons include: the source data range or target data range exceeds the available range.

• java
• kotlin
• csharp

public void copyFromByteArray(byte @Nonnull[] src, int srcIndex, int index, int length)

fun copyFromByteArray(src: Array<Byte>, srcIndex: Int, index: Int, length: Int): Unit

public void copyFromByteArray(byte[] src, int srcIndex, int index, int length)

Paramètres

Nom	Type	Description
src
srcIndex	Int32
index	Int32
length	Int32

copyToByteArray

Copie data from Buffer to a byte array. Si la copy echoue, une exception est levee. Failure reasons include: the source data range or target data range exceeds the available range.

• java
• kotlin
• csharp

public void copyToByteArray(byte @Nonnull[] dest)

fun copyToByteArray(dest: Array<Byte>): Unit

public void copyToByteArray(byte[] dest)

Paramètres

Nom	Type	Description
dest

copyToByteArray

Copie data from Buffer to a byte array. Si la copy echoue, une exception est levee. Failure reasons include: the source data range or target data range exceeds the available range.

• java
• kotlin
• csharp

public void copyToByteArray(int index, byte @Nonnull[] dest, int destIndex, int length)

fun copyToByteArray(index: Int, dest: Array<Byte>, destIndex: Int, length: Int): Unit

public void copyToByteArray(int index, byte[] dest, int destIndex, int length)

Paramètres

Nom	Type	Description
index	Int32
dest
destIndex	Int32
length	Int32

tryCopyFromByteArray

Copie data from a byte array to Buffer. Si la copy reussit, retourne true; sinon retourne false. Failure reasons include: the source data range or target data range exceeds the available range.

• swift

public func tryCopyFromByteArray(_ src: [UInt8]) -> Bool

Paramètres

Nom	Type	Description
src

Retours

Type	Description
Boolean

tryCopyFromByteArray

Copie data from a byte array to Buffer. Si la copy reussit, retourne true; sinon retourne false. Failure reasons include: the source data range or target data range exceeds the available range.

• swift

public func tryCopyFromByteArray(_ src: [UInt8], _ srcIndex: Int32, _ index: Int32, _ length: Int32) -> Bool

Paramètres

Nom	Type	Description
src
srcIndex	Int32
index	Int32
length	Int32

Retours

Type	Description
Boolean

tryCopyToByteArray

Copie data from Buffer to a byte array. Si la copy reussit, retourne true; sinon retourne false. Failure reasons include: the source data range or target data range exceeds the available range.

• swift

public func tryCopyToByteArray(_ dest: [UInt8]) -> Bool

Paramètres

Nom	Type	Description
dest

Retours

Type	Description
Boolean

tryCopyToByteArray

Copie data from Buffer to a byte array. Si la copy reussit, retourne true; sinon retourne false. Failure reasons include: the source data range or target data range exceeds the available range.

• swift

public func tryCopyToByteArray(_ index: Int32, _ dest: [UInt8], _ destIndex: Int32, _ length: Int32) -> Bool

Paramètres

Nom	Type	Description
index	Int32
dest
destIndex	Int32
length	Int32

Retours

Type	Description
Boolean