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24 #ifndef __ARM_COMPUTE_TEST_VALIDATION_UTILS_H__
25 #define __ARM_COMPUTE_TEST_VALIDATION_UTILS_H__
27 #include "arm_compute/core/Types.h"
28 #include "tests/Globals.h"
29 #include "tests/ILutAccessor.h"
30 #include "tests/Types.h"
34 #include <type_traits>
44 /** Checks if a pixel has valid coordinates
46 * @param x X coordinate
47 * @param y Y coordinate
48 * @param width Width of the image
49 * @param height Height of the image
50 * @param border_size Border size
52 * @return True if pixel is valid else false
54 inline bool is_valid_pixel_index(int x, int y, int width, int height, int border_size)
56 return ((x >= -border_size) && (y >= -border_size) && (x < (width + border_size)) && (y < height + border_size));
59 // Return a tensor element at a specified coordinate with different border modes
61 T tensor_elem_at(const SimpleTensor<T> &src, Coordinates coord, BorderMode border_mode, T constant_border_value)
63 const int x = coord.x();
64 const int y = coord.y();
65 const int z = coord.z();
66 const int width = src.shape().x();
67 const int height = src.shape().y();
68 const int depth = src.shape().z();
70 // If coordinates beyond range of tensor's width or height
71 if(x < 0 || y < 0 || z < 0 || x >= width || y >= height || z >= depth)
73 if(border_mode == BorderMode::REPLICATE)
75 coord.set(0, std::max(0, std::min(x, width - 1)));
76 coord.set(1, std::max(0, std::min(y, height - 1)));
80 return constant_border_value;
84 return src[coord2index(src.shape(), coord)];
88 T bilinear_policy(const SimpleTensor<T> &in, Coordinates id, float xn, float yn, BorderMode border_mode, T constant_border_value);
90 /* Apply 2D spatial filter on a single element of @p in at coordinates @p coord
92 * - filter sizes have to be odd number
93 * - Row major order of filter assumed
94 * - TO_ZERO rounding policy assumed
95 * - SATURATE convert policy assumed
97 template <typename T, typename U, typename V>
98 void apply_2d_spatial_filter(Coordinates coord, const SimpleTensor<T> &src, SimpleTensor<U> &dst, const TensorShape &filter_shape, const V *filter_itr, double scale, BorderMode border_mode,
99 T constant_border_value = T(0))
102 const int x = coord.x();
103 const int y = coord.y();
104 for(int j = y - static_cast<int>(filter_shape[1] / 2); j <= y + static_cast<int>(filter_shape[1] / 2); ++j)
106 for(int i = x - static_cast<int>(filter_shape[0] / 2); i <= x + static_cast<int>(filter_shape[0] / 2); ++i)
110 val += static_cast<double>(*filter_itr) * tensor_elem_at(src, coord, border_mode, constant_border_value);
116 dst[coord2index(src.shape(), coord)] = saturate_cast<U>(support::cpp11::trunc(val * scale));
119 RawTensor transpose(const RawTensor &src, int chunk_width = 1);
121 /** Fill matrix random.
123 * @param[in,out] matrix Matrix
125 template <std::size_t SIZE>
126 inline void fill_warp_matrix(std::array<float, SIZE> &matrix)
128 std::mt19937 gen(library.get()->seed());
129 std::uniform_real_distribution<float> dist(-1, 1);
130 for(auto &x : matrix)
136 // This is only used in Warp Perspective, we set M[3][3] = 1 so that Z0 is not 0 and we avoid division by 0.
141 bool valid_bilinear_policy(float xn, float yn, int width, int height, BorderMode border_mode);
142 } // namespace validation
144 } // namespace arm_compute
145 #endif /* __ARM_COMPUTE_TEST_VALIDATION_UTILS_H__ */