| /* |
| * 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. |
| */ |
| #ifndef __ARM_COMPUTE_TEST_PADDING_CALCULATOR_H__ |
| #define __ARM_COMPUTE_TEST_PADDING_CALCULATOR_H__ |
| |
| #include "arm_compute/core/Types.h" |
| |
| #include <cmath> |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| /** Calculate required padding. */ |
| class PaddingCalculator final |
| { |
| public: |
| /** Options for computing the padding */ |
| enum class Option |
| { |
| EXCLUDE_BORDER, |
| INCLUDE_BORDER |
| }; |
| |
| /** Construct calculator with size of tensor's dimension and step size. |
| * |
| * @param[in] size Number of elements available. |
| * @param[in] processed_elements Number of elements processed per iteration. |
| */ |
| PaddingCalculator(int size, int processed_elements) |
| : _size{ size }, _num_processed_elements{ processed_elements }, _num_accessed_elements{ processed_elements } |
| { |
| } |
| |
| /** Set border mode. |
| * |
| * @param[in] mode Border mode. |
| */ |
| void set_border_mode(BorderMode mode); |
| |
| /** Set border size. |
| * |
| * @param[in] size Border size in elements. |
| */ |
| void set_border_size(int size); |
| |
| /** Set offset of the access relative to the current position. |
| * |
| * @param[in] offset Offset of the access. |
| */ |
| void set_access_offset(int offset); |
| |
| /** Set number of processed elements. |
| * |
| * @param[in] elements Number of processed elements per iteration. |
| */ |
| void set_processed_elements(int elements); |
| |
| /** Set number of accessed elements. |
| * |
| * @param[in] elements Number of accessed elements per iteration. |
| */ |
| void set_accessed_elements(int elements); |
| |
| /** Compute the required padding. |
| * |
| * If access offset is negative and border mode is not undefined, the top, |
| * bottom and left padding is set to boder size. Otherwise it is zero. |
| * The right padding is always computed based on the specified parameters. |
| * |
| * @return Required padding in number of elements. |
| */ |
| PaddingSize required_padding() const; |
| |
| /** Compute the required padding. |
| * |
| * If @p option is INCLUDE_BORDER and border mode is not undefined, the top, |
| * bottom and left padding is set to boder size. Otherwise it is zero. |
| * The right padding is always computed based on the specified parameters. |
| * |
| * @param[in] option Padding option |
| * |
| * @return Required padding in number of elements. |
| */ |
| PaddingSize required_padding(Option option) const; |
| |
| private: |
| int _size; |
| int _num_processed_elements; |
| int _num_accessed_elements; |
| BorderMode _mode{ BorderMode::UNDEFINED }; |
| int _border_size{ 0 }; |
| int _offset{ 0 }; |
| }; |
| |
| inline void PaddingCalculator::set_border_mode(BorderMode mode) |
| { |
| _mode = mode; |
| } |
| |
| inline void PaddingCalculator::set_border_size(int size) |
| { |
| _border_size = size; |
| } |
| |
| inline void PaddingCalculator::set_access_offset(int offset) |
| { |
| _offset = offset; |
| } |
| |
| inline void PaddingCalculator::set_processed_elements(int elements) |
| { |
| _num_processed_elements = elements; |
| } |
| inline void PaddingCalculator::set_accessed_elements(int elements) |
| { |
| _num_accessed_elements = elements; |
| } |
| |
| inline PaddingSize PaddingCalculator::required_padding() const |
| { |
| return required_padding(_offset < 0 ? Option::INCLUDE_BORDER : Option::EXCLUDE_BORDER); |
| } |
| |
| inline PaddingSize PaddingCalculator::required_padding(Option option) const |
| { |
| PaddingSize padding{ (_mode == BorderMode::UNDEFINED || option == Option::EXCLUDE_BORDER) ? 0U : static_cast<unsigned int>(std::max(0, _border_size)) }; |
| |
| int padding_right = 0; |
| |
| if(_mode == BorderMode::UNDEFINED) |
| { |
| padding_right = (((_size - 2 * _border_size + _num_processed_elements - 1) / _num_processed_elements) - 1) * _num_processed_elements + _num_accessed_elements - _size + _border_size + _offset; |
| } |
| else |
| { |
| padding_right = (((_size + _num_processed_elements - 1) / _num_processed_elements) - 1) * _num_processed_elements + _num_accessed_elements - _size + _offset; |
| } |
| |
| padding.right = std::max(0, padding_right); |
| |
| return padding; |
| } |
| } // namespace test |
| } // namespace arm_compute |
| #endif /* __ARM_COMPUTE_TEST_PADDING_CALCULATOR_H__ */ |