transform.hpp 5.3 KB

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  1. /*M///////////////////////////////////////////////////////////////////////////////////////
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  10. // License Agreement
  11. // For Open Source Computer Vision Library
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  14. // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
  15. // Copyright (C) 2013, OpenCV Foundation, all rights reserved.
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  42. //M*/
  43. #pragma once
  44. #ifndef OPENCV_CUDEV_PTR2D_TRANSFORM_HPP
  45. #define OPENCV_CUDEV_PTR2D_TRANSFORM_HPP
  46. #include "../common.hpp"
  47. #include "../grid/copy.hpp"
  48. #include "traits.hpp"
  49. #include "gpumat.hpp"
  50. namespace cv { namespace cudev {
  51. //! @addtogroup cudev
  52. //! @{
  53. // UnaryTransformPtr
  54. template <class SrcPtr, class Op> struct UnaryTransformPtr
  55. {
  56. typedef typename Op::result_type value_type;
  57. typedef typename PtrTraits<SrcPtr>::index_type index_type;
  58. SrcPtr src;
  59. Op op;
  60. __device__ __forceinline__ typename Op::result_type operator ()(typename PtrTraits<SrcPtr>::index_type y, typename PtrTraits<SrcPtr>::index_type x) const
  61. {
  62. return op(src(y, x));
  63. }
  64. };
  65. template <class SrcPtr, class Op> struct UnaryTransformPtrSz : UnaryTransformPtr<SrcPtr, Op>
  66. {
  67. int rows, cols;
  68. template <typename T>
  69. __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
  70. {
  71. gridCopy(*this, dst, stream);
  72. }
  73. };
  74. template <class SrcPtr, class Op>
  75. __host__ UnaryTransformPtrSz<typename PtrTraits<SrcPtr>::ptr_type, Op>
  76. transformPtr(const SrcPtr& src, const Op& op)
  77. {
  78. UnaryTransformPtrSz<typename PtrTraits<SrcPtr>::ptr_type, Op> ptr;
  79. ptr.src = shrinkPtr(src);
  80. ptr.op = op;
  81. ptr.rows = getRows(src);
  82. ptr.cols = getCols(src);
  83. return ptr;
  84. }
  85. template <class SrcPtr, class Op> struct PtrTraits< UnaryTransformPtrSz<SrcPtr, Op> > : PtrTraitsBase<UnaryTransformPtrSz<SrcPtr, Op>, UnaryTransformPtr<SrcPtr, Op> >
  86. {
  87. };
  88. // BinaryTransformPtr
  89. template <class Src1Ptr, class Src2Ptr, class Op> struct BinaryTransformPtr
  90. {
  91. typedef typename Op::result_type value_type;
  92. typedef typename PtrTraits<Src1Ptr>::index_type index_type;
  93. Src1Ptr src1;
  94. Src2Ptr src2;
  95. Op op;
  96. __device__ __forceinline__ typename Op::result_type operator ()(typename PtrTraits<Src1Ptr>::index_type y, typename PtrTraits<Src1Ptr>::index_type x) const
  97. {
  98. return op(src1(y, x), src2(y, x));
  99. }
  100. };
  101. template <class Src1Ptr, class Src2Ptr, class Op> struct BinaryTransformPtrSz : BinaryTransformPtr<Src1Ptr, Src2Ptr, Op>
  102. {
  103. int rows, cols;
  104. template <typename T>
  105. __host__ void assignTo(GpuMat_<T>& dst, Stream& stream = Stream::Null()) const
  106. {
  107. gridCopy(*this, dst, stream);
  108. }
  109. };
  110. template <class Src1Ptr, class Src2Ptr, class Op>
  111. __host__ BinaryTransformPtrSz<typename PtrTraits<Src1Ptr>::ptr_type, typename PtrTraits<Src2Ptr>::ptr_type, Op>
  112. transformPtr(const Src1Ptr& src1, const Src2Ptr& src2, const Op& op)
  113. {
  114. const int rows = getRows(src1);
  115. const int cols = getCols(src1);
  116. CV_Assert( getRows(src2) == rows && getCols(src2) == cols );
  117. BinaryTransformPtrSz<typename PtrTraits<Src1Ptr>::ptr_type, typename PtrTraits<Src2Ptr>::ptr_type, Op> ptr;
  118. ptr.src1 = shrinkPtr(src1);
  119. ptr.src2 = shrinkPtr(src2);
  120. ptr.op = op;
  121. ptr.rows = rows;
  122. ptr.cols = cols;
  123. return ptr;
  124. }
  125. template <class Src1Ptr, class Src2Ptr, class Op> struct PtrTraits< BinaryTransformPtrSz<Src1Ptr, Src2Ptr, Op> > : PtrTraitsBase<BinaryTransformPtrSz<Src1Ptr, Src2Ptr, Op>, BinaryTransformPtr<Src1Ptr, Src2Ptr, Op> >
  126. {
  127. };
  128. //! @}
  129. }}
  130. #endif