cv::ocl::Context 类参考

#include <opencv2/core/ocl.hpp>

cv::ocl::Context 的协作图

类
class	UserContext

公有成员函数
	Context () CV_NOEXCEPT
	Context (const Context &c)
	Context (Context &&c) CV_NOEXCEPT
	Context (int dtype)
	~Context ()
bool	create ()
bool	create (int dtype)
Device &	device (size_t idx) const
bool	empty () const
Impl *	getImpl () const
void *	getOpenCLContextProperty (int propertyId) const
	获取创建上下文时指定的 OpenCL 上下文属性。
Program	getProg (const ProgramSource &prog, const String &buildopt, String &errmsg)
template<typename T >
std::shared_ptr< T >	getUserContext ()
std::shared_ptr< UserContext >	getUserContext (std::type_index typeId)
size_t	ndevices () const
Context &	operator= (const Context &c)
Context &	operator= (Context &&c) CV_NOEXCEPT
void *	ptr () const
void	release ()
template<typename T >
void	setUserContext (const std::shared_ptr< T > &userContext)
void	setUserContext (std::type_index typeId, const std::shared_ptr< UserContext > &userContext)
void	setUseSVM (bool enabled)
void	unloadProg (Program &prog)
bool	useSVM () const

静态公有成员函数
static Context	create (const std::string &configuration)
static Context	fromDevice (const ocl::Device &device)
static Context	fromHandle (void *context)
static Context &	getDefault (bool initialize=true)

公有属性
Impl *	p

构造函数和析构函数文档

Context() [1/4]

cv::ocl::Context::Context

(

)

Context() [2/4]

cv::ocl::Context::Context ( int  dtype )

explicit

已弃用

~Context()

cv::ocl::Context::~Context

(

)

Context() [3/4]

cv::ocl::Context::Context

(

const Context &

c

)

Context() [4/4]

cv::ocl::Context::Context

(

Context &&

c

)

成员函数文档

create() [1/3]

bool cv::ocl::Context::create

(

)

已弃用

create() [2/3]

static Context cv::ocl::Context::create ( const std::string &  configuration )

static

create() [3/3]

bool cv::ocl::Context::create

(

int

dtype

)

已弃用

device()

Device & cv::ocl::Context::device

(

size_t

idx

)

const

empty()

bool cv::ocl::Context::empty ( ) const

inline

fromDevice()

static Context cv::ocl::Context::fromDevice ( const ocl::Device &  device )

static

fromHandle()

static Context cv::ocl::Context::fromHandle ( void *  context )

static

参数

context

OpenCL 句柄 (cl_context)。成功时将调用 clRetainContext()

getDefault()

static Context & cv::ocl::Context::getDefault ( bool  initialize = true )

static

获取线程局部 OpenCL 上下文（如有必要则进行初始化）

getImpl()

Impl * cv::ocl::Context::getImpl ( ) const

inline

getOpenCLContextProperty()

void * cv::ocl::Context::getOpenCLContextProperty

(

int

propertyId

)

const

获取创建上下文时指定的 OpenCL 上下文属性。

参数

propertyId

属性 ID（在 cl_context_properties 类型中定义为 CL_CONTEXT_*）

返回值

如果属性是在 clCreateContext 上指定的，则为属性值；如果上下文是在没有属性的情况下创建的，则为 NULL

getProg()

Program cv::ocl::Context::getProg	(	const ProgramSource &	prog,
		const String &	buildopt,
		String &	errmsg
	)

getUserContext() [1/2]

template<typename T >

std::shared_ptr< T > cv::ocl::Context::getUserContext ( )

inline

getUserContext() [2/2]

std::shared_ptr< UserContext > cv::ocl::Context::getUserContext

(

std::type_index

typeId

)

ndevices()

size_t cv::ocl::Context::ndevices

(

)

const

operator=() [1/2]

Context & cv::ocl::Context::operator=

(

const Context &

c

)

operator=() [2/2]

Context & cv::ocl::Context::operator=

(

Context &&

c

)

ptr()

void * cv::ocl::Context::ptr

(

)

const

返回值

cl_context value

release()

void cv::ocl::Context::release

(

)

setUserContext() [1/2]

template<typename T >

void cv::ocl::Context::setUserContext ( const std::shared_ptr< T > &  userContext )

inline

setUserContext() [2/2]

void cv::ocl::Context::setUserContext	(	std::type_index	typeId,
		const std::shared_ptr< UserContext > &	userContext
	)

setUseSVM()

void cv::ocl::Context::setUseSVM

(

bool

enabled

)

unloadProg()

void cv::ocl::Context::unloadProg

(

Program &

prog

)

useSVM()

bool cv::ocl::Context::useSVM

(

)

const

成员数据文档

p

Impl* cv::ocl::Context::p

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此类的文档是从以下文件生成的

• opencv2/core/ocl.hpp