cv::ocl::OpenCLExecutionContext Class Reference

#include <opencv2/core/ocl.hpp>

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Public Member Functions
	OpenCLExecutionContext ()=default
	OpenCLExecutionContext (const OpenCLExecutionContext &)=default
	OpenCLExecutionContext (OpenCLExecutionContext &&)=default
	~OpenCLExecutionContext ()=default
void	bind () const
OpenCLExecutionContext	cloneWithNewQueue () const
OpenCLExecutionContext	cloneWithNewQueue (const ocl::Queue &q) const
bool	empty () const
Context &	getContext () const
Device &	getDevice () const
Queue &	getQueue () const
OpenCLExecutionContext &	operator= (const OpenCLExecutionContext &)=default
OpenCLExecutionContext &	operator= (OpenCLExecutionContext &&)=default
void	release ()
void	setUseOpenCL (bool flag)
bool	useOpenCL () const

Static Public Member Functions
static OpenCLExecutionContext	create (const Context &context, const Device &device)
static OpenCLExecutionContext	create (const Context &context, const Device &device, const ocl::Queue &queue)
	Creates OpenCL execution context.
static OpenCLExecutionContext	create (const std::string &platformName, void *platformID, void *context, void *deviceID)
	Creates OpenCL execution context OpenCV will check if available OpenCL platform has platformName name, then assign context to OpenCV. The deviceID device will be used as target device and a new command queue will be created.
static OpenCLExecutionContext &	getCurrent ()
static OpenCLExecutionContext &	getCurrentRef ()

Protected Attributes
std::shared_ptr< Impl >	p

Constructor & Destructor Documentation

OpenCLExecutionContext() [1/3]

cv::ocl::OpenCLExecutionContext::OpenCLExecutionContext ( )

default

~OpenCLExecutionContext()

cv::ocl::OpenCLExecutionContext::~OpenCLExecutionContext ( )

default

OpenCLExecutionContext() [2/3]

cv::ocl::OpenCLExecutionContext::OpenCLExecutionContext ( const OpenCLExecutionContext & )

default

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OpenCLExecutionContext() [3/3]

cv::ocl::OpenCLExecutionContext::OpenCLExecutionContext ( OpenCLExecutionContext && )

default

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Member Function Documentation

bind()

void cv::ocl::OpenCLExecutionContext::bind

(

)

const

Bind this OpenCL execution context to current thread.

Context can't be empty.

Note

clFinish is not called for queue of previous execution context

cloneWithNewQueue() [1/2]

OpenCLExecutionContext cv::ocl::OpenCLExecutionContext::cloneWithNewQueue

(

)

const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

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cloneWithNewQueue() [2/2]

OpenCLExecutionContext cv::ocl::OpenCLExecutionContext::cloneWithNewQueue

(

const ocl::Queue &

q

)

const

Creates new execution context with same OpenCV context and device

Parameters

q	OpenCL queue

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create() [1/3]

OpenCLExecutionContext cv::ocl::OpenCLExecutionContext::create ( const Context & context, const Device & device )

static

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

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create() [2/3]

OpenCLExecutionContext cv::ocl::OpenCLExecutionContext::create ( const Context & context, const Device & device, const ocl::Queue & queue )

static

Creates OpenCL execution context.

Parameters

context	non-empty OpenCL context
device	non-empty OpenCL device (must be a part of context)
queue	non-empty OpenCL queue for provided context and device

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create() [3/3]

OpenCLExecutionContext cv::ocl::OpenCLExecutionContext::create ( const std::string & platformName, void * platformID, void * context, void * deviceID )

static

Creates OpenCL execution context OpenCV will check if available OpenCL platform has platformName name, then assign context to OpenCV. The deviceID device will be used as target device and a new command queue will be created.

Note

On success, ownership of one reference of the context and device is taken. The caller should additionally call clRetainContext and/or clRetainDevice to increase the reference count if it wishes to continue using them.

Parameters

platformName	name of OpenCL platform to attach, this string is used to check if platform is available to OpenCV at runtime
platformID	ID of platform attached context was created for (cl_platform_id)
context	OpenCL context to be attached to OpenCV (cl_context)
deviceID	OpenCL device (cl_device_id)

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empty()

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

inline

getContext()

Context & cv::ocl::OpenCLExecutionContext::getContext

(

)

const

Get associated ocl::Context

getCurrent()

OpenCLExecutionContext & cv::ocl::OpenCLExecutionContext::getCurrent ( )

static

Get OpenCL execution context of current thread.

Initialize OpenCL execution context if it is empty

• create new
• reuse context of the main thread (threadID = 0)

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getCurrentRef()

OpenCLExecutionContext & cv::ocl::OpenCLExecutionContext::getCurrentRef ( )

static

Get OpenCL execution context of current thread (can be empty)

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getDevice()

Device & cv::ocl::OpenCLExecutionContext::getDevice

(

)

const

Get the single default associated ocl::Device

getQueue()

Queue & cv::ocl::OpenCLExecutionContext::getQueue

(

)

const

Get the single ocl::Queue that is associated with the ocl::Context and the single default ocl::Device

operator=() [1/2]

OpenCLExecutionContext & cv::ocl::OpenCLExecutionContext::operator= ( const OpenCLExecutionContext & )

default

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operator=() [2/2]

OpenCLExecutionContext & cv::ocl::OpenCLExecutionContext::operator= ( OpenCLExecutionContext && )

default

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release()

void cv::ocl::OpenCLExecutionContext::release

(

)

setUseOpenCL()

void cv::ocl::OpenCLExecutionContext::setUseOpenCL

(

bool

flag

)

useOpenCL()

bool cv::ocl::OpenCLExecutionContext::useOpenCL

(

)

const

Member Data Documentation

p

std::shared_ptr<Impl> cv::ocl::OpenCLExecutionContext::p

protected

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

• opencv2/core/ocl.hpp