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     43 
     44 #pragma once
     45 
     46 #ifndef __OPENCV_CUDEV_EXPR_WARPING_HPP__
     47 #define __OPENCV_CUDEV_EXPR_WARPING_HPP__
     48 
     49 #include "../common.hpp"
     50 #include "../ptr2d/traits.hpp"
     51 #include "../ptr2d/resize.hpp"
     52 #include "../ptr2d/remap.hpp"
     53 #include "../ptr2d/warping.hpp"
     54 #include "../grid/pyramids.hpp"
     55 #include "../grid/transpose.hpp"
     56 #include "expr.hpp"
     57 
     58 namespace cv { namespace cudev {
     59 
     60 //! @addtogroup cudev
     61 //! @{
     62 
     63 // resize
     64 
     65 template <class SrcPtr>
     66 __host__ Expr<ResizePtrSz<typename PtrTraits<SrcPtr>::ptr_type> >
     67 resize_(const SrcPtr& src, float fx, float fy)
     68 {
     69     return makeExpr(resizePtr(src, fx, fy));
     70 }
     71 
     72 // remap
     73 
     74 template <class SrcPtr, class MapPtr>
     75 __host__ Expr<RemapPtr1Sz<typename PtrTraits<SrcPtr>::ptr_type, typename PtrTraits<MapPtr>::ptr_type> >
     76 remap_(const SrcPtr& src, const MapPtr& map)
     77 {
     78     return makeExpr(remapPtr(src, map));
     79 }
     80 
     81 template <class SrcPtr, class MapXPtr, class MapYPtr>
     82 __host__ Expr<RemapPtr2Sz<typename PtrTraits<SrcPtr>::ptr_type, typename PtrTraits<MapXPtr>::ptr_type, typename PtrTraits<MapYPtr>::ptr_type> >
     83 remap_(const SrcPtr& src, const MapXPtr& mapx, const MapYPtr& mapy)
     84 {
     85     return makeExpr(remapPtr(src, mapx, mapy));
     86 }
     87 
     88 // warpAffine
     89 
     90 template <class SrcPtr>
     91 __host__ Expr<RemapPtr1Sz<typename PtrTraits<SrcPtr>::ptr_type, AffineMapPtr> >
     92 warpAffine_(const SrcPtr& src, Size dstSize, const GpuMat_<float>& warpMat)
     93 {
     94     return makeExpr(warpAffinePtr(src, dstSize, warpMat));
     95 }
     96 
     97 // warpPerspective
     98 
     99 template <class SrcPtr>
    100 __host__ Expr<RemapPtr1Sz<typename PtrTraits<SrcPtr>::ptr_type, PerspectiveMapPtr> >
    101 warpPerspective_(const SrcPtr& src, Size dstSize, const GpuMat_<float>& warpMat)
    102 {
    103     return makeExpr(warpPerspectivePtr(src, dstSize, warpMat));
    104 }
    105 
    106 // pyrDown
    107 
    108 template <class SrcPtr> struct PyrDownBody
    109 {
    110     SrcPtr src;
    111 
    112     template <typename T>
    113     __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
    114     {
    115         gridPyrDown(src, dst, stream);
    116     }
    117 };
    118 
    119 template <class SrcPtr>
    120 __host__ Expr<PyrDownBody<SrcPtr> >
    121 pyrDown_(const SrcPtr& src)
    122 {
    123     PyrDownBody<SrcPtr> body;
    124     body.src = src;
    125     return makeExpr(body);
    126 }
    127 
    128 // pyrUp
    129 
    130 template <class SrcPtr> struct PyrUpBody
    131 {
    132     SrcPtr src;
    133 
    134     template <typename T>
    135     __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
    136     {
    137         gridPyrUp(src, dst, stream);
    138     }
    139 };
    140 
    141 template <class SrcPtr>
    142 __host__ Expr<PyrUpBody<SrcPtr> >
    143 pyrUp_(const SrcPtr& src)
    144 {
    145     PyrUpBody<SrcPtr> body;
    146     body.src = src;
    147     return makeExpr(body);
    148 }
    149 
    150 // transpose
    151 
    152 template <class SrcPtr> struct TransposeBody
    153 {
    154     SrcPtr src;
    155 
    156     template <typename T>
    157     __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
    158     {
    159         gridTranspose(src, dst, stream);
    160     }
    161 };
    162 
    163 template <class SrcPtr>
    164 __host__ Expr<TransposeBody<SrcPtr> >
    165 transpose_(const SrcPtr& src)
    166 {
    167     TransposeBody<SrcPtr> body;
    168     body.src = src;
    169     return makeExpr(body);
    170 }
    171 
    172 //! @}
    173 
    174 }}
    175 
    176 #endif
    177