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43
44 #pragma once
45
46 #ifndef __OPENCV_CUDEV_PTR2D_LUT_HPP__
47 #define __OPENCV_CUDEV_PTR2D_LUT_HPP__
48
49 #include "../common.hpp"
50 #include "../util/vec_traits.hpp"
51 #include "../grid/copy.hpp"
52 #include "traits.hpp"
53 #include "gpumat.hpp"
54
55 namespace cv { namespace cudev {
56
57 //! @addtogroup cudev
58 //! @{
59
60 template <class SrcPtr, class TablePtr> struct LutPtr
61 {
62 typedef typename PtrTraits<TablePtr>::value_type value_type;
63 typedef typename PtrTraits<SrcPtr>::index_type index_type;
64
65 SrcPtr src;
66 TablePtr tbl;
67
operator ()cv::cudev::LutPtr68 __device__ __forceinline__ typename PtrTraits<TablePtr>::value_type operator ()(typename PtrTraits<SrcPtr>::index_type y, typename PtrTraits<SrcPtr>::index_type x) const
69 {
70 typedef typename PtrTraits<TablePtr>::index_type tbl_index_type;
71 return tbl(VecTraits<tbl_index_type>::all(0), src(y, x));
72 }
73 };
74
75 template <class SrcPtr, class TablePtr> struct LutPtrSz : LutPtr<SrcPtr, TablePtr>
76 {
77 int rows, cols;
78
79 template <typename T>
assignTocv::cudev::LutPtrSz80 __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 TablePtr>
lutPtr(const SrcPtr & src,const TablePtr & tbl)87 __host__ LutPtrSz<typename PtrTraits<SrcPtr>::ptr_type, typename PtrTraits<TablePtr>::ptr_type> lutPtr(const SrcPtr& src, const TablePtr& tbl)
88 {
89 LutPtrSz<typename PtrTraits<SrcPtr>::ptr_type, typename PtrTraits<TablePtr>::ptr_type> ptr;
90 ptr.src = shrinkPtr(src);
91 ptr.tbl = shrinkPtr(tbl);
92 ptr.rows = getRows(src);
93 ptr.cols = getCols(src);
94 return ptr;
95 }
96
97 template <class SrcPtr, class TablePtr> struct PtrTraits< LutPtrSz<SrcPtr, TablePtr> > : PtrTraitsBase<LutPtrSz<SrcPtr, TablePtr>, LutPtr<SrcPtr, TablePtr> >
98 {
99 };
100
101 //! @}
102
103 }}
104
105 #endif
106