119 lines
3.9 KiB
C++
119 lines
3.9 KiB
C++
/*
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* Copyright (c) 2019 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_TEST_FFT_H
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#define ARM_COMPUTE_TEST_FFT_H
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#include "tests/SimpleTensor.h"
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#include "tests/validation/Helpers.h"
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namespace arm_compute
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{
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namespace test
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{
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namespace validation
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{
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namespace reference
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{
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enum class FFTDirection
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{
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Forward,
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Inverse
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};
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/** Performs an one dimensional DFT on a real input.
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*
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* @param[in] src Source tensor.
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*
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* @return Complex output of length n/2 + 1 due to symmetry.
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*/
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template <typename T>
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SimpleTensor<T> rdft_1d(const SimpleTensor<T> &src);
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/** Performs an one dimensional inverse DFT on a real input.
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*
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* @param[in] src Source tensor.
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* @param[in] is_odd (Optional) Specifies if the output has odd dimensions.
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* Is used by the inverse variant to reconstruct odd sequences.
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*
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* @return Complex output of length n/2 + 1 due to symmetry.
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*/
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template <typename T>
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SimpleTensor<T> ridft_1d(const SimpleTensor<T> &src, bool is_odd = false);
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/** Performs an one dimensional DFT on a complex input.
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*
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* @param[in] src Source tensor.
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* @param[in] direction Direction of the DFT.
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*
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* @return Complex output of same length as input.
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*/
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template <typename T>
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SimpleTensor<T> dft_1d(const SimpleTensor<T> &src, FFTDirection direction);
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/** Performs a two dimensional DFT on a real input.
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*
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* @param[in] src Source tensor.
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*
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* @return Complex output of length n/2 + 1 across width due to symmetry and height of same size as the input.
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*/
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template <typename T>
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SimpleTensor<T> rdft_2d(const SimpleTensor<T> &src);
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/** Performs a two dimensional inverse DFT on a real input.
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*
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* @param[in] src Source tensor.
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* @param[in] is_odd (Optional) Specifies if the output has odd dimensions across width.
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* Is used by the inverse variant to reconstruct odd sequences.
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*
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* @return Complex output of length n/2 + 1 across width due to symmetry and height of same size as the input.
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*/
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template <typename T>
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SimpleTensor<T> ridft_2d(const SimpleTensor<T> &src, bool is_odd = false);
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/** Performs a two dimensional DFT on a complex input.
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*
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* @param[in] src Source tensor.
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* @param[in] direction Direction of the DFT.
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*
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* @return Complex output of same length as input.
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*/
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template <typename T>
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SimpleTensor<T> dft_2d(const SimpleTensor<T> &src, FFTDirection direction);
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/** Performs and DFT based convolution on a real input.
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*
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* @param[in] src Source tensor.
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* @param[in] w Weights tensor.
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* @param[in] conv_info Convolution related metadata.
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*
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* @return The output tensor.
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*/
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template <typename T>
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SimpleTensor<T> conv2d_dft(const SimpleTensor<T> &src, const SimpleTensor<T> &w, const PadStrideInfo &conv_info);
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} // namespace reference
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} // namespace validation
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} // namespace test
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} // namespace arm_compute
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#endif /* ARM_COMPUTE_TEST_FFT_H */
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