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Diffstat (limited to 'tests/validation/reference/Scharr.cpp')
-rw-r--r-- | tests/validation/reference/Scharr.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/tests/validation/reference/Scharr.cpp b/tests/validation/reference/Scharr.cpp new file mode 100644 index 0000000000..98e4d62dba --- /dev/null +++ b/tests/validation/reference/Scharr.cpp @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "Scharr.h" + +#include "Utils.h" +#include "tests/validation/Helpers.h" + +#include <array> +#include <map> +#include <utility> + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +namespace +{ +const std::array<int8_t, 9> scharr_3_x{ { -3, 0, 3, -10, 0, 10, -3, 0, 3 } }; +const std::array<int8_t, 9> scharr_3_y{ { -3, -10, -3, 0, 0, 0, 3, 10, 3 } }; + +const std::map<int, std::pair<const int8_t *, const int8_t *>> masks +{ + { 3, { scharr_3_x.data(), scharr_3_y.data() } } +}; + +template <typename T> +struct data_type; + +template <> +struct data_type<int16_t> +{ + const static DataType value = DataType::S16; +}; +} // namespace + +template <typename T, typename U> +std::pair<SimpleTensor<T>, SimpleTensor<T>> scharr(const SimpleTensor<U> &src, int filter_size, BorderMode border_mode, uint8_t constant_border_value, GradientDimension gradient_dimension) +{ + const auto shape_size = static_cast<unsigned int>(filter_size); + + SimpleTensor<T> dst_x(src.shape(), data_type<T>::value, src.num_channels()); + SimpleTensor<T> dst_y(src.shape(), data_type<T>::value, src.num_channels()); + + ValidRegion valid_region = shape_to_valid_region(src.shape(), border_mode == BorderMode::UNDEFINED, BorderSize(filter_size / 2)); + + for(int i = 0; i < src.num_elements(); ++i) + { + Coordinates coord = index2coord(src.shape(), i); + + if(!is_in_valid_region(valid_region, coord)) + { + continue; + } + + switch(gradient_dimension) + { + case GradientDimension::GRAD_X: + apply_2d_spatial_filter(coord, src, dst_x, TensorShape{ shape_size, shape_size }, masks.at(filter_size).first, 1.f, border_mode, constant_border_value); + break; + case GradientDimension::GRAD_Y: + apply_2d_spatial_filter(coord, src, dst_y, TensorShape{ shape_size, shape_size }, masks.at(filter_size).second, 1.f, border_mode, constant_border_value); + break; + case GradientDimension::GRAD_XY: + apply_2d_spatial_filter(coord, src, dst_x, TensorShape{ shape_size, shape_size }, masks.at(filter_size).first, 1.f, border_mode, constant_border_value); + apply_2d_spatial_filter(coord, src, dst_y, TensorShape{ shape_size, shape_size }, masks.at(filter_size).second, 1.f, border_mode, constant_border_value); + break; + default: + ARM_COMPUTE_ERROR("Gradient dimension not supported"); + } + } + + return std::make_pair(dst_x, dst_y); +} + +template std::pair<SimpleTensor<int16_t>, SimpleTensor<int16_t>> scharr(const SimpleTensor<uint8_t> &src, int filter_size, BorderMode border_mode, uint8_t constant_border_value, + GradientDimension gradient_dimension); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute |