1 /* 2 * Copyright (c) 2019-2020 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_NEFFTDIGITREVERSEKERNEL_H 25 #define ARM_COMPUTE_NEFFTDIGITREVERSEKERNEL_H 26 27 #include "arm_compute/core/KernelDescriptors.h" 28 #include "src/core/NEON/INEKernel.h" 29 30 namespace arm_compute 31 { 32 // Forward declarations 33 class ITensor; 34 35 /** Interface for the digit reverse operation kernel. */ 36 class NEFFTDigitReverseKernel : public INEKernel 37 { 38 public: name()39 const char *name() const override 40 { 41 return "NEFFTDigitReverseKernel"; 42 } 43 /** Constructor */ 44 NEFFTDigitReverseKernel(); 45 /** Prevent instances of this class from being copied (As this class contains pointers) */ 46 NEFFTDigitReverseKernel(const NEFFTDigitReverseKernel &) = delete; 47 /** Prevent instances of this class from being copied (As this class contains pointers) */ 48 NEFFTDigitReverseKernel &operator=(const NEFFTDigitReverseKernel &) = delete; 49 /** Default Move Constructor. */ 50 NEFFTDigitReverseKernel(NEFFTDigitReverseKernel &&) = default; 51 /** Default move assignment operator */ 52 NEFFTDigitReverseKernel &operator=(NEFFTDigitReverseKernel &&) = default; 53 /** Default destructor */ 54 ~NEFFTDigitReverseKernel() = default; 55 /** Set the input and output tensors. 56 * 57 * @param[in] input Source tensor. Data types supported: F32. Number of channels supported: 1 (real tensor) or 2 (complex tensor). 58 * @param[out] output Destination tensor. Data type supported: same as @p input. Number of channels supported: 2 (complex tensor). 59 * @param[in] idx Digit reverse index tensor. Data type supported: U32 60 * @param[in] config Kernel configuration. 61 */ 62 void configure(const ITensor *input, ITensor *output, const ITensor *idx, const FFTDigitReverseKernelInfo &config); 63 64 /** Static function to check if given info will lead to a valid configuration of @ref NEFFTDigitReverseKernel 65 * 66 * @param[in] input Source tensor info. Data types supported: F32. Number of channels supported: 1 (real tensor) or 2 (complex tensor). 67 * @param[in] output Destination tensor info. Data type supported: same as @p input. Number of channels supported: 2 (complex tensor). 68 * @param[in] idx Digit reverse index tensor info. Data type supported: U32 69 * @param[in] config Kernel configuration 70 * 71 * @return a status 72 */ 73 static Status validate(const ITensorInfo *input, const ITensorInfo *output, const ITensorInfo *idx, const FFTDigitReverseKernelInfo &config); 74 75 // Inherited methods overridden: 76 void run(const Window &window, const ThreadInfo &info) override; 77 78 private: 79 using NEFFTDigitReverseKernelFunctionPtr = void (NEFFTDigitReverseKernel::*)(const Window &window); 80 81 template <bool is_input_complex, bool is_conj> 82 void digit_reverse_kernel_axis_0(const Window &window); 83 84 template <bool is_input_complex, bool is_conj> 85 void digit_reverse_kernel_axis_1(const Window &window); 86 87 NEFFTDigitReverseKernelFunctionPtr _func; 88 const ITensor *_input; 89 ITensor *_output; 90 const ITensor *_idx; 91 }; 92 } // namespace arm_compute 93 #endif /*ARM_COMPUTE_NEFFTDIGITREVERSEKERNEL_H */ 94