| /* |
| * Copyright (c) 2019-2021 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_NEFFTRADIXSTAGEKERNEL_H |
| #define ARM_COMPUTE_NEFFTRADIXSTAGEKERNEL_H |
| |
| #include "arm_compute/core/KernelDescriptors.h" |
| |
| #include "src/core/NEON/INEKernel.h" |
| |
| #include <arm_neon.h> |
| #include <set> |
| |
| namespace arm_compute |
| { |
| // Forward declarations |
| class ITensor; |
| |
| /** Interface for the FFT kernel. */ |
| class NEFFTRadixStageKernel : public INEKernel |
| { |
| public: |
| const char *name() const override |
| { |
| return "NEFFTRadixStageKernel"; |
| } |
| /** Constructor */ |
| NEFFTRadixStageKernel(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEFFTRadixStageKernel(const NEFFTRadixStageKernel &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| NEFFTRadixStageKernel &operator=(const NEFFTRadixStageKernel &) = delete; |
| /** Default Move Constructor. */ |
| NEFFTRadixStageKernel(NEFFTRadixStageKernel &&) = default; |
| /** Default move assignment operator */ |
| NEFFTRadixStageKernel &operator=(NEFFTRadixStageKernel &&) = default; |
| /** Default destructor */ |
| ~NEFFTRadixStageKernel() = default; |
| /** Set the input and output tensors. |
| * |
| * @note If the output tensor is nullptr, the FFT will be performed in-place |
| * |
| * @param[in,out] input Source tensor. Data types supported: F32. Number of channels supported: 2 (complex tensor). |
| * @param[out] output Destination tensor. Data type supported: same as @p input. Number of channels supported: same as @p input. |
| * @param[in] config FFT descriptor metadata. |
| */ |
| void configure(ITensor *input, ITensor *output, const FFTRadixStageKernelInfo &config); |
| /** Static function to check if given info will lead to a valid configuration of @ref NEFFTRadixStageKernel |
| * |
| * @param[in] input Source tensor info. Data types supported: F32. Number of channels supported: 2 (complex tensor). |
| * @param[in] output Destination tensor info. Data type supported: same as @p input. Number of channels supported: same as @p input. |
| * @param[in] config FFT descriptor metadata. |
| * |
| * @return a status |
| */ |
| static Status validate(const ITensorInfo *input, const ITensorInfo *output, const FFTRadixStageKernelInfo &config); |
| /** Returns the radix that are support by the FFT kernel |
| * |
| * @return A set of supported radix |
| */ |
| static std::set<unsigned int> supported_radix(); |
| |
| // Inherited methods overridden: |
| void run(const Window &window, const ThreadInfo &info) override; |
| |
| private: |
| ITensor *_input; |
| ITensor *_output; |
| unsigned int _Nx; |
| unsigned int _axis; |
| unsigned int _radix; |
| |
| void set_radix_stage_axis0(const FFTRadixStageKernelInfo &config); |
| void set_radix_stage_axis1(const FFTRadixStageKernelInfo &config); |
| |
| using FFTFunctionPointerAxis0 = |
| std::function<void(float *, float *, unsigned int, unsigned int, const float32x2_t &, unsigned int)>; |
| using FFTFunctionPointerAxis1 = std::function<void(float *, |
| float *, |
| unsigned int, |
| unsigned int, |
| const float32x2_t &, |
| unsigned int, |
| unsigned int, |
| unsigned int, |
| unsigned int)>; |
| |
| FFTFunctionPointerAxis0 _func_0; |
| FFTFunctionPointerAxis1 _func_1; |
| }; |
| } // namespace arm_compute |
| #endif /*ARM_COMPUTE_NEFFTRADIXSTAGEKERNEL_H */ |