| OpenCV 5.0.0alpha Open Source Computer Vision

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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>`
Include dependency graph for gkernel.hpp:
This graph shows which files directly or indirectly include this file:

## Classes
struct | cv::detail::CompileArgTag< cv::gapi::use_only >
struct | cv::detail::CompileArgTag< cv::GKernelPackage >
struct | cv::GKernel
struct | cv::GKernelImpl
class | cv::GKernelPackage
| A container class for heterogeneous kernel implementation collections and graph transformations. More...
class | cv::GKernelType< K, std::function< R(Args...)> >
class | cv::GKernelTypeM< K, std::function< std::tuple< R... >(Args...)> >
struct | cv::GTypeInfo
struct | std::hash< cv::gapi::GBackend >
class | cv::detail::KernelTypeMedium< K, std::function< R(Args...)> >
class | cv::detail::KernelTypeMedium< K, std::function< std::tuple< R... >(Args...)> >
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< 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::gapi::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...
struct | cv::detail::Yield< cv::GArray< U > >
struct | cv::detail::Yield< cv::GMat >
struct | cv::detail::Yield< cv::GMatP >
struct | cv::detail::Yield< cv::GOpaque< U > >
struct | cv::detail::Yield< cv::GScalar >
struct | cv::detail::Yield< GFrame >

## Namespaces
namespace | cv
namespace | cv::detail
namespace | cv::gapi
namespace | std
| STL namespace.

## Macros
#define | __WRAP_VAARGS(x)
#define | COMBINE_SIGNATURE(...)
#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)
#define | G_TYPED_KERNEL_HELPER_2(Class, _1, _2, Id)
#define | G_TYPED_KERNEL_HELPER_3(Class, _1, _2, _3, Id)
#define | G_TYPED_KERNEL_HELPER_4(Class, _1, _2, _3, _4, Id)
#define | G_TYPED_KERNEL_HELPER_5(Class, _1, _2, _3, _4, _5, Id)
#define | G_TYPED_KERNEL_HELPER_6(Class, _1, _2, _3, _4, _5, _6, Id)
#define | G_TYPED_KERNEL_HELPER_7(Class, _1, _2, _3, _4, _5, _6, _7, Id)
#define | G_TYPED_KERNEL_HELPER_8(Class, _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)
#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, ...)

## Typedefs
using | cv::GCtors = std::vector<detail::HostCtor>
using | cv::gapi::GKernelPackage = cv::GKernelPackage
using | cv::GKinds = std::vector<cv::detail::OpaqueKind>
using | cv::GShapes = std::vector<GShape>
template<typename T >
using | cv::detail::is_nongapi_type = std::is_same<T, typename MetaType<T>::type>

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

## Variables
class GAPI_EXPORTS_W_SIMPLE | cv::GKernelPackage

## Macro Definition Documentation

## ◆ __WRAP_VAARGS

#define __WRAP_VAARGS | ( |  | x | ) |

Value:
x

## ◆ COMBINE_SIGNATURE

#define COMBINE_SIGNATURE | ( |  | ... | ) |

Value:
__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__)) \
G_TYPED_KERNEL_HELPER_7
#define G_TYPED_KERNEL_HELPER_7(Class, _1, _2, _3, _4, _5, _6, _7, Id)
Definition gkernel.hpp:329
GET_G_TYPED_KERNEL
#define GET_G_TYPED_KERNEL(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, NAME,...)
Definition gkernel.hpp:294
G_TYPED_KERNEL_HELPER_4
#define G_TYPED_KERNEL_HELPER_4(Class, _1, _2, _3, _4, Id)
Definition gkernel.hpp:320
G_TYPED_KERNEL_HELPER_9
#define G_TYPED_KERNEL_HELPER_9(Class, _1, _2, _3, _4, _5, _6, _7, _8, _9, Id)
Definition gkernel.hpp:335
G_TYPED_KERNEL_HELPER_6
#define G_TYPED_KERNEL_HELPER_6(Class, _1, _2, _3, _4, _5, _6, Id)
Definition gkernel.hpp:326
G_TYPED_KERNEL_HELPER_5
#define G_TYPED_KERNEL_HELPER_5(Class, _1, _2, _3, _4, _5, Id)
Definition gkernel.hpp:323
G_TYPED_KERNEL_HELPER_8
#define G_TYPED_KERNEL_HELPER_8(Class, _1, _2, _3, _4, _5, _6, _7, _8, Id)
Definition gkernel.hpp:332
G_TYPED_KERNEL_HELPER_2
#define G_TYPED_KERNEL_HELPER_2(Class, _1, _2, Id)
Definition gkernel.hpp:314
G_TYPED_KERNEL_HELPER
#define G_TYPED_KERNEL_HELPER(Class, API, Id)
Definition gkernel.hpp:308
G_TYPED_KERNEL_HELPER_3
#define G_TYPED_KERNEL_HELPER_3(Class, _1, _2, _3, Id)
Definition gkernel.hpp:317
G_TYPED_KERNEL_HELPER_10
#define G_TYPED_KERNEL_HELPER_10(Class, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, Id)
Definition gkernel.hpp:338
__WRAP_VAARGS
#define __WRAP_VAARGS(x)
Definition gkernel.hpp:297

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)
cv::detail::KernelTypeMedium
Definition gkernel.hpp:266

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 )

Value:
G_TYPED_KERNEL_HELPER(Class, COMBINE_SIGNATURE(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10), Id)
COMBINE_SIGNATURE
#define COMBINE_SIGNATURE(...)
Definition gkernel.hpp:295

## ◆ G_TYPED_KERNEL_HELPER_2

#define G_TYPED_KERNEL_HELPER_2 | ( |  | Class,
|  |  | _1,
|  |  | _2,
|  |  | Id )

Value:
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 )

Value:
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 )

Value:
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 )

Value:
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 )

Value:
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 )

Value:
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 )

Value:
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 )

Value:
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,
|  |  | ... )

Value:
NAME