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Diffstat (limited to 'tests/validation/reference/DFT.h')
-rw-r--r-- | tests/validation/reference/DFT.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/tests/validation/reference/DFT.h b/tests/validation/reference/DFT.h new file mode 100644 index 0000000000..a3a10abd7f --- /dev/null +++ b/tests/validation/reference/DFT.h @@ -0,0 +1,118 @@ +/* + * Copyright (c) 2019 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_FFT_H__ +#define __ARM_COMPUTE_TEST_FFT_H__ + +#include "tests/SimpleTensor.h" +#include "tests/validation/Helpers.h" + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +enum class FFTDirection +{ + Forward, + Inverse +}; + +/** Performs an one dimensional DFT on a real input. + * + * @param[in] src Source tensor. + * + * @return Complex output of length n/2 + 1 due to symmetry. + */ +template <typename T> +SimpleTensor<T> rdft_1d(const SimpleTensor<T> &src); + +/** Performs an one dimensional inverse DFT on a real input. + * + * @param[in] src Source tensor. + * @param[in] is_odd (Optional) Specifies if the output has odd dimensions. + * Is used by the inverse variant to reconstruct odd sequences. + * + * @return Complex output of length n/2 + 1 due to symmetry. + */ +template <typename T> +SimpleTensor<T> ridft_1d(const SimpleTensor<T> &src, bool is_odd = false); + +/** Performs an one dimensional DFT on a complex input. + * + * @param[in] src Source tensor. + * @param[in] direction Direction of the DFT. + * + * @return Complex output of same length as input. + */ +template <typename T> +SimpleTensor<T> dft_1d(const SimpleTensor<T> &src, FFTDirection direction); + +/** Performs a two dimensional DFT on a real input. + * + * @param[in] src Source tensor. + * + * @return Complex output of length n/2 + 1 across width due to symmetry and height of same size as the input. + */ +template <typename T> +SimpleTensor<T> rdft_2d(const SimpleTensor<T> &src); + +/** Performs a two dimensional inverse DFT on a real input. + * + * @param[in] src Source tensor. + * @param[in] is_odd (Optional) Specifies if the output has odd dimensions across width. + * Is used by the inverse variant to reconstruct odd sequences. + * + * @return Complex output of length n/2 + 1 across width due to symmetry and height of same size as the input. + */ +template <typename T> +SimpleTensor<T> ridft_2d(const SimpleTensor<T> &src, bool is_odd = false); + +/** Performs a two dimensional DFT on a complex input. + * + * @param[in] src Source tensor. + * @param[in] direction Direction of the DFT. + * + * @return Complex output of same length as input. + */ +template <typename T> +SimpleTensor<T> dft_2d(const SimpleTensor<T> &src, FFTDirection direction); + +/** Performs and DFT based convolution on a real input. + * + * @param[in] src Source tensor. + * @param[in] w Weights tensor. + * @param[in] conv_info Convolution related metadata. + * + * @return The output tensor. + */ +template <typename T> +SimpleTensor<T> conv2d_dft(const SimpleTensor<T> &src, const SimpleTensor<T> &w, const PadStrideInfo &conv_info); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute +#endif /* __ARM_COMPUTE_TEST_FFT_H__ */ |