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_CLFFT1D_H 25 #define ARM_COMPUTE_CLFFT1D_H 26 27 #include "arm_compute/runtime/IFunction.h" 28 29 #include "arm_compute/runtime/CL/CLTensor.h" 30 #include "arm_compute/runtime/FunctionDescriptors.h" 31 #include "arm_compute/runtime/MemoryGroup.h" 32 33 namespace arm_compute 34 { 35 // Forward declaration 36 class CLFFTDigitReverseKernel; 37 class CLFFTRadixStageKernel; 38 class CLFFTScaleKernel; 39 class ICLTensor; 40 41 /** Basic function to execute one dimensional FFT. This function calls the following OpenCL kernels: 42 * 43 * -# @ref CLFFTDigitReverseKernel Performs digit reverse. 44 * -# @ref CLFFTRadixStageKernel A list of FFT kernels depending on the radix decomposition. 45 * -# @ref CLFFTScaleKernel Performs output scaling in case of in inverse FFT. 46 */ 47 class CLFFT1D : public IFunction 48 { 49 public: 50 /** Default Constructor */ 51 CLFFT1D(std::shared_ptr<IMemoryManager> memory_manager = nullptr); 52 /** Prevent instances of this class from being copied */ 53 CLFFT1D(const CLFFT1D &) = delete; 54 /** Prevent instances of this class from being copied */ 55 CLFFT1D &operator=(const CLFFT1D &) = delete; 56 /** Default move constructor */ 57 CLFFT1D(CLFFT1D &&) = default; 58 /** Default move assignment operator */ 59 CLFFT1D &operator=(CLFFT1D &&) = default; 60 /** Default destructor */ 61 ~CLFFT1D(); 62 /** Initialise the function's source, destinations and border mode. 63 * 64 * @param[in] input Source tensor. Data types supported: F32. 65 * @param[out] output Destination tensor. Data types and data layouts supported: Same as @p input. 66 * @param[in] config FFT related configuration 67 */ 68 void configure(const ICLTensor *input, ICLTensor *output, const FFT1DInfo &config); 69 /** Initialise the function's source, destinations and border mode. 70 * 71 * @param[in] compile_context The compile context to be used. 72 * @param[in] input Source tensor. Data types supported: F32. 73 * @param[out] output Destination tensor. Data types and data layouts supported: Same as @p input. 74 * @param[in] config FFT related configuration 75 */ 76 void configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, const FFT1DInfo &config); 77 /** Static function to check if given info will lead to a valid configuration of @ref CLFFT1D. 78 * 79 * @param[in] input Source tensor info. Data types supported: F32. 80 * @param[in] output Destination tensor info. Data types and data layouts supported: Same as @p input. 81 * @param[in] config FFT related configuration 82 * 83 * @return a status 84 */ 85 static Status validate(const ITensorInfo *input, const ITensorInfo *output, const FFT1DInfo &config); 86 87 // Inherited methods overridden: 88 void run() override; 89 90 protected: 91 MemoryGroup _memory_group; 92 std::unique_ptr<CLFFTDigitReverseKernel> _digit_reverse_kernel; 93 std::vector<std::unique_ptr<CLFFTRadixStageKernel>> _fft_kernels; 94 std::unique_ptr<CLFFTScaleKernel> _scale_kernel; 95 CLTensor _digit_reversed_input; 96 CLTensor _digit_reverse_indices; 97 unsigned int _num_ffts; 98 bool _run_scale; 99 }; 100 } // namespace arm_compute 101 #endif /*ARM_COMPUTE_CLFFT1D_H */ 102