vec_distance_detail.hpp
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42 
43 #ifndef __OPENCV_GPU_VEC_DISTANCE_DETAIL_HPP__
44 #define __OPENCV_GPU_VEC_DISTANCE_DETAIL_HPP__
45 
46 #include "../datamov_utils.hpp"
47 
48 namespace cv { namespace gpu { namespace device
49 {
50  namespace vec_distance_detail
51  {
52  template <int THREAD_DIM, int N> struct UnrollVecDiffCached
53  {
54  template <typename Dist, typename T1, typename T2>
55  static __device__ void calcCheck(const T1* vecCached, const T2* vecGlob, int len, Dist& dist, int ind)
56  {
57  if (ind < len)
58  {
59  T1 val1 = *vecCached++;
60 
61  T2 val2;
62  ForceGlob<T2>::Load(vecGlob, ind, val2);
63 
64  dist.reduceIter(val1, val2);
65 
66  UnrollVecDiffCached<THREAD_DIM, N - 1>::calcCheck(vecCached, vecGlob, len, dist, ind + THREAD_DIM);
67  }
68  }
69 
70  template <typename Dist, typename T1, typename T2>
71  static __device__ void calcWithoutCheck(const T1* vecCached, const T2* vecGlob, Dist& dist)
72  {
73  T1 val1 = *vecCached++;
74 
75  T2 val2;
76  ForceGlob<T2>::Load(vecGlob, 0, val2);
77  vecGlob += THREAD_DIM;
78 
79  dist.reduceIter(val1, val2);
80 
82  }
83  };
84  template <int THREAD_DIM> struct UnrollVecDiffCached<THREAD_DIM, 0>
85  {
86  template <typename Dist, typename T1, typename T2>
87  static __device__ __forceinline__ void calcCheck(const T1*, const T2*, int, Dist&, int)
88  {
89  }
90 
91  template <typename Dist, typename T1, typename T2>
92  static __device__ __forceinline__ void calcWithoutCheck(const T1*, const T2*, Dist&)
93  {
94  }
95  };
96 
97  template <int THREAD_DIM, int MAX_LEN, bool LEN_EQ_MAX_LEN> struct VecDiffCachedCalculator;
98  template <int THREAD_DIM, int MAX_LEN> struct VecDiffCachedCalculator<THREAD_DIM, MAX_LEN, false>
99  {
100  template <typename Dist, typename T1, typename T2>
101  static __device__ __forceinline__ void calc(const T1* vecCached, const T2* vecGlob, int len, Dist& dist, int tid)
102  {
103  UnrollVecDiffCached<THREAD_DIM, MAX_LEN / THREAD_DIM>::calcCheck(vecCached, vecGlob, len, dist, tid);
104  }
105  };
106  template <int THREAD_DIM, int MAX_LEN> struct VecDiffCachedCalculator<THREAD_DIM, MAX_LEN, true>
107  {
108  template <typename Dist, typename T1, typename T2>
109  static __device__ __forceinline__ void calc(const T1* vecCached, const T2* vecGlob, int len, Dist& dist, int tid)
110  {
111  UnrollVecDiffCached<THREAD_DIM, MAX_LEN / THREAD_DIM>::calcWithoutCheck(vecCached, vecGlob + tid, dist);
112  }
113  };
114  } // namespace vec_distance_detail
115 }}} // namespace cv { namespace gpu { namespace device
116 
117 #endif // __OPENCV_GPU_VEC_DISTANCE_DETAIL_HPP__
static __device__ __forceinline__ void calc(const T1 *vecCached, const T2 *vecGlob, int len, Dist &dist, int tid)
Definition: vec_distance_detail.hpp:101
static __device__ __forceinline__ void calc(const T1 *vecCached, const T2 *vecGlob, int len, Dist &dist, int tid)
Definition: vec_distance_detail.hpp:109
static __device__ __forceinline__ void calcCheck(const T1 *, const T2 *, int, Dist &, int)
Definition: vec_distance_detail.hpp:87
static __device__ __forceinline__ void calcWithoutCheck(const T1 *, const T2 *, Dist &)
Definition: vec_distance_detail.hpp:92
static __device__ void calcWithoutCheck(const T1 *vecCached, const T2 *vecGlob, Dist &dist)
Definition: vec_distance_detail.hpp:71
static __device__ void calcCheck(const T1 *vecCached, const T2 *vecGlob, int len, Dist &dist, int ind)
Definition: vec_distance_detail.hpp:55
Definition: vec_distance_detail.hpp:52
GLenum GLsizei len
false
Definition: color.hpp:230
true
Definition: color.hpp:221
CvPoint3D64f double * dist
Definition: legacy.hpp:556
__device__ static __forceinline__ void Load(const T *ptr, int offset, T &val)
Definition: datamov_utils.hpp:55