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     43 
     44 #pragma once
     45 
     46 #ifndef __OPENCV_CUDEV_PTR2D_TRANSFORM_HPP__
     47 #define __OPENCV_CUDEV_PTR2D_TRANSFORM_HPP__
     48 
     49 #include "../common.hpp"
     50 #include "../grid/copy.hpp"
     51 #include "traits.hpp"
     52 #include "gpumat.hpp"
     53 
     54 namespace cv { namespace cudev {
     55 
     56 //! @addtogroup cudev
     57 //! @{
     58 
     59 // UnaryTransformPtr
     60 
     61 template <class SrcPtr, class Op> struct UnaryTransformPtr
     62 {
     63     typedef typename Op::result_type               value_type;
     64     typedef typename PtrTraits<SrcPtr>::index_type index_type;
     65 
     66     SrcPtr src;
     67     Op op;
     68 
     69     __device__ __forceinline__ typename Op::result_type operator ()(typename PtrTraits<SrcPtr>::index_type y, typename PtrTraits<SrcPtr>::index_type x) const
     70     {
     71         return op(src(y, x));
     72     }
     73 };
     74 
     75 template <class SrcPtr, class Op> struct UnaryTransformPtrSz : UnaryTransformPtr<SrcPtr, Op>
     76 {
     77     int rows, cols;
     78 
     79     template <typename T>
     80     __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
     81     {
     82         gridCopy(*this, dst, stream);
     83     }
     84 };
     85 
     86 template <class SrcPtr, class Op>
     87 __host__ UnaryTransformPtrSz<typename PtrTraits<SrcPtr>::ptr_type, Op>
     88 transformPtr(const SrcPtr& src, const Op& op)
     89 {
     90     UnaryTransformPtrSz<typename PtrTraits<SrcPtr>::ptr_type, Op> ptr;
     91     ptr.src = shrinkPtr(src);
     92     ptr.op = op;
     93     ptr.rows = getRows(src);
     94     ptr.cols = getCols(src);
     95     return ptr;
     96 }
     97 
     98 template <class SrcPtr, class Op> struct PtrTraits< UnaryTransformPtrSz<SrcPtr, Op> > : PtrTraitsBase<UnaryTransformPtrSz<SrcPtr, Op>, UnaryTransformPtr<SrcPtr, Op> >
     99 {
    100 };
    101 
    102 // BinaryTransformPtr
    103 
    104 template <class Src1Ptr, class Src2Ptr, class Op> struct BinaryTransformPtr
    105 {
    106     typedef typename Op::result_type                value_type;
    107     typedef typename PtrTraits<Src1Ptr>::index_type index_type;
    108 
    109     Src1Ptr src1;
    110     Src2Ptr src2;
    111     Op op;
    112 
    113     __device__ __forceinline__ typename Op::result_type operator ()(typename PtrTraits<Src1Ptr>::index_type y, typename PtrTraits<Src1Ptr>::index_type x) const
    114     {
    115         return op(src1(y, x), src2(y, x));
    116     }
    117 };
    118 
    119 template <class Src1Ptr, class Src2Ptr, class Op> struct BinaryTransformPtrSz : BinaryTransformPtr<Src1Ptr, Src2Ptr, Op>
    120 {
    121     int rows, cols;
    122 
    123     template <typename T>
    124     __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
    125     {
    126         gridCopy(*this, dst, stream);
    127     }
    128 };
    129 
    130 template <class Src1Ptr, class Src2Ptr, class Op>
    131 __host__ BinaryTransformPtrSz<typename PtrTraits<Src1Ptr>::ptr_type, typename PtrTraits<Src2Ptr>::ptr_type, Op>
    132 transformPtr(const Src1Ptr& src1, const Src2Ptr& src2, const Op& op)
    133 {
    134     const int rows = getRows(src1);
    135     const int cols = getCols(src1);
    136 
    137     CV_Assert( getRows(src2) == rows && getCols(src2) == cols );
    138 
    139     BinaryTransformPtrSz<typename PtrTraits<Src1Ptr>::ptr_type, typename PtrTraits<Src2Ptr>::ptr_type, Op> ptr;
    140     ptr.src1 = shrinkPtr(src1);
    141     ptr.src2 = shrinkPtr(src2);
    142     ptr.op = op;
    143     ptr.rows = rows;
    144     ptr.cols = cols;
    145     return ptr;
    146 }
    147 
    148 template <class Src1Ptr, class Src2Ptr, class Op> struct PtrTraits< BinaryTransformPtrSz<Src1Ptr, Src2Ptr, Op> > : PtrTraitsBase<BinaryTransformPtrSz<Src1Ptr, Src2Ptr, Op>, BinaryTransformPtr<Src1Ptr, Src2Ptr, Op> >
    149 {
    150 };
    151 
    152 //! @}
    153 
    154 }}
    155 
    156 #endif
    157