gkernel.hpp File Reference

#include <functional>
#include <iostream>
#include <string>
#include <type_traits>
#include <unordered_map>
#include <utility>
#include <opencv2/gapi/gcommon.hpp>
#include <opencv2/gapi/util/util.hpp>
#include <opencv2/gapi/gcall.hpp>
#include <opencv2/gapi/garg.hpp>
#include <opencv2/gapi/gmetaarg.hpp>
#include <opencv2/gapi/gtype_traits.hpp>
#include <opencv2/gapi/util/compiler_hints.hpp>
#include <opencv2/gapi/gtransform.hpp>

Classes
struct	cv::detail::CompileArgTag< cv::gapi::GKernelPackage >
struct	cv::detail::CompileArgTag< cv::gapi::use_only >
class	cv::gapi::GBackend
class	cv::gapi::GFunctor
struct	cv::GKernel
struct	cv::GKernelImpl
class	cv::gapi::GKernelPackage
	A container class for heterogeneous kernel implementation collections and graph transformations. More...
class	cv::GKernelType< typename, typename >
class	cv::GKernelType< K, std::function< R(Args...)> >
class	cv::GKernelTypeM< typename, typename >
class	cv::GKernelTypeM< K, std::function< std::tuple< R... >(Args...)> >
struct	std::hash< cv::gapi::GBackend >
class	cv::detail::KernelTypeMedium< typename, typename >
class	cv::detail::KernelTypeMedium< K, std::function< R(Args...)> >
class	cv::detail::KernelTypeMedium< K, std::function< std::tuple< R... >(Args...)> >
struct	cv::detail::MetaHelper< typename, typename, typename >
struct	cv::detail::MetaHelper< K, std::tuple< Ins... >, Out >
struct	cv::detail::MetaHelper< K, std::tuple< Ins... >, std::tuple< Outs... > >
struct	cv::detail::MetaType< T >
struct	cv::detail::MetaType< T >
struct	cv::detail::MetaType< cv::GArray< U > >
struct	cv::detail::MetaType< cv::GFrame >
struct	cv::detail::MetaType< cv::GMat >
struct	cv::detail::MetaType< cv::GMatP >
struct	cv::detail::MetaType< cv::GOpaque< U > >
struct	cv::detail::MetaType< cv::GScalar >
struct	cv::detail::NoTag
struct	cv::gapi::use_only
	cv::use_only() is a special combinator which hints G-API to use only kernels specified in cv::GComputation::compile() (and not to extend kernels available by default with that package). More...

Namespaces
	cv
	"black box" representation of the file storage associated with a file on disk.
	cv::detail
	cv::gapi
	Retrieves particular compilation argument by its type from cv::GCompileArgs.

Macros
#define	__WRAP_VAARGS(x)   x
#define	COMBINE_SIGNATURE(...)   __VA_ARGS__
#define	G_API_OP   G_TYPED_KERNEL
#define	G_API_OP_M   G_API_OP
#define	G_TYPED_KERNEL(Class, ...)
#define	G_TYPED_KERNEL_HELPER(Class, API, Id)
#define	G_TYPED_KERNEL_HELPER_10(Class, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10), Id)
#define	G_TYPED_KERNEL_HELPER_2(Class, _1, _2, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2), Id)
#define	G_TYPED_KERNEL_HELPER_3(Class, _1, _2, _3, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3), Id)
#define	G_TYPED_KERNEL_HELPER_4(Class, _1, _2, _3, _4, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4), Id)
#define	G_TYPED_KERNEL_HELPER_5(Class, _1, _2, _3, _4, _5, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5), Id)
#define	G_TYPED_KERNEL_HELPER_6(Class, _1, _2, _3, _4, _5, _6, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6), Id)
#define	G_TYPED_KERNEL_HELPER_7(Class, _1, _2, _3, _4, _5, _6, _7, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7), Id)
#define	G_TYPED_KERNEL_HELPER_8(Class, _1, _2, _3, _4, _5, _6, _7, _8, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8), Id)
#define	G_TYPED_KERNEL_HELPER_9(Class, _1, _2, _3, _4, _5, _6, _7, _8, _9, Id)   G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8, _9), Id)
#define	G_TYPED_KERNEL_M   G_TYPED_KERNEL
#define	GET_G_TYPED_KERNEL(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, NAME, ...)   NAME

Typedefs
using	cv::GShapes = std::vector< GShape >
using	cv::GSpecs = std::vector< cv::detail::ArgSpec >
template<typename T >
using	cv::detail::is_nongapi_type = std::is_same< T, typename MetaType< T >::type >

Functions
GKernelPackage	cv::gapi::combine (const GKernelPackage &lhs, const GKernelPackage &rhs)
template<typename... Ps>
GKernelPackage	cv::gapi::combine (const GKernelPackage &a, const GKernelPackage &b, Ps &&... rest)
	Combines multiple G-API kernel packages into one. More...
template<typename T >
std::enable_if<!is_nongapi_type< T >::value, typename MetaType< T >::type >::type	cv::detail::get_in_meta (const GMetaArgs &in_meta, const GArgs &, int idx)
template<typename T >
std::enable_if< is_nongapi_type< T >::value, T >::type	cv::detail::get_in_meta (const GMetaArgs &, const GArgs &in_args, int idx)
template<typename... KK>
GKernelPackage	cv::gapi::kernels ()
	Create a kernel package object containing kernels and transformations specified in variadic template argument. More...
template<typename... FF>
GKernelPackage	cv::gapi::kernels (FF &... functors)
bool	cv::gapi::operator!= (const GBackend &lhs, const GBackend &rhs)

Macro Definition Documentation

__WRAP_VAARGS

#define __WRAP_VAARGS

(

x

)

x

COMBINE_SIGNATURE

#define COMBINE_SIGNATURE

(

...

)

__VA_ARGS__

G_API_OP

#define G_API_OP   G_TYPED_KERNEL

G_API_OP_M

#define G_API_OP_M   G_API_OP

G_TYPED_KERNEL

#define G_TYPED_KERNEL	(		Class,
			...
	)

Value:

__WRAP_VAARGS(GET_G_TYPED_KERNEL(__VA_ARGS__, \
                                                 G_TYPED_KERNEL_HELPER_10, \
                                                 G_TYPED_KERNEL_HELPER_9, \
                                                 G_TYPED_KERNEL_HELPER_8, \
                                                 G_TYPED_KERNEL_HELPER_7, \
                                                 G_TYPED_KERNEL_HELPER_6, \
                                                 G_TYPED_KERNEL_HELPER_5, \
                                                 G_TYPED_KERNEL_HELPER_4, \
                                                 G_TYPED_KERNEL_HELPER_3, \
                                                 G_TYPED_KERNEL_HELPER_2, \
                                                 G_TYPED_KERNEL_HELPER)(Class, __VA_ARGS__)) \

Declares a new G-API Operation. See Kernel API for more details.

Parameters

Class

type name for this operation.

G_TYPED_KERNEL_HELPER

#define G_TYPED_KERNEL_HELPER	(		Class,
			API,
			Id
	)

Value:

G_ID_HELPER_BODY(Class, Id)                                                             \
    struct Class final: public cv::detail::KernelTypeMedium<Class, std::function API >,     \
                        public G_ID_HELPER_CLASS(Class)

Helper for G_TYPED_KERNEL declares a new G-API Operation. See Kernel API for more details.

Parameters

Class	type name for this operation.
API	an std::function<>-like signature for the operation; return type is a single value or a tuple of multiple values.
Id	string identifier for the operation. Must be unique.

G_TYPED_KERNEL_HELPER_10

#define G_TYPED_KERNEL_HELPER_10	(		Class,
			_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			_7,
			_8,
			_9,
			_10,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10), Id)

G_TYPED_KERNEL_HELPER_2

#define G_TYPED_KERNEL_HELPER_2	(		Class,
			_1,
			_2,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2), Id)

G_TYPED_KERNEL_HELPER_3

#define G_TYPED_KERNEL_HELPER_3	(		Class,
			_1,
			_2,
			_3,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3), Id)

G_TYPED_KERNEL_HELPER_4

#define G_TYPED_KERNEL_HELPER_4	(		Class,
			_1,
			_2,
			_3,
			_4,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4), Id)

G_TYPED_KERNEL_HELPER_5

#define G_TYPED_KERNEL_HELPER_5	(		Class,
			_1,
			_2,
			_3,
			_4,
			_5,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5), Id)

G_TYPED_KERNEL_HELPER_6

#define G_TYPED_KERNEL_HELPER_6	(		Class,
			_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6), Id)

G_TYPED_KERNEL_HELPER_7

#define G_TYPED_KERNEL_HELPER_7	(		Class,
			_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			_7,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7), Id)

G_TYPED_KERNEL_HELPER_8

#define G_TYPED_KERNEL_HELPER_8	(		Class,
			_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			_7,
			_8,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8), Id)

G_TYPED_KERNEL_HELPER_9

#define G_TYPED_KERNEL_HELPER_9	(		Class,
			_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			_7,
			_8,
			_9,
			Id
	)		G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8, _9), Id)

G_TYPED_KERNEL_M

#define G_TYPED_KERNEL_M   G_TYPED_KERNEL

Declares a new G-API Operation. See Kernel API for more details.

Deprecated:

This macro is deprecated in favor of G_TYPED_KERNEL that is used for declaring any G-API Operation.

Parameters

Class

type name for this operation.

GET_G_TYPED_KERNEL

#define GET_G_TYPED_KERNEL	(		_1,
			_2,
			_3,
			_4,
			_5,
			_6,
			_7,
			_8,
			_9,
			_10,
			_11,
			NAME,
			...
	)		NAME