102 lines
4.5 KiB
C++
102 lines
4.5 KiB
C++
/*
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* Copyright (c) 2019-2020 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_CLFFT1D_H
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#define ARM_COMPUTE_CLFFT1D_H
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#include "arm_compute/runtime/IFunction.h"
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#include "arm_compute/runtime/CL/CLTensor.h"
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#include "arm_compute/runtime/FunctionDescriptors.h"
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#include "arm_compute/runtime/MemoryGroup.h"
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namespace arm_compute
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{
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// Forward declaration
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class CLFFTDigitReverseKernel;
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class CLFFTRadixStageKernel;
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class CLFFTScaleKernel;
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class ICLTensor;
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/** Basic function to execute one dimensional FFT. This function calls the following OpenCL kernels:
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*
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* -# @ref CLFFTDigitReverseKernel Performs digit reverse.
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* -# @ref CLFFTRadixStageKernel A list of FFT kernels depending on the radix decomposition.
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* -# @ref CLFFTScaleKernel Performs output scaling in case of in inverse FFT.
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*/
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class CLFFT1D : public IFunction
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{
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public:
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/** Default Constructor */
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CLFFT1D(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
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/** Prevent instances of this class from being copied */
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CLFFT1D(const CLFFT1D &) = delete;
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/** Prevent instances of this class from being copied */
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CLFFT1D &operator=(const CLFFT1D &) = delete;
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/** Default move constructor */
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CLFFT1D(CLFFT1D &&) = default;
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/** Default move assignment operator */
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CLFFT1D &operator=(CLFFT1D &&) = default;
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/** Default destructor */
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~CLFFT1D();
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/** Initialise the function's source, destinations and border mode.
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*
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* @param[in] input Source tensor. Data types supported: F32.
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* @param[out] output Destination tensor. Data types and data layouts supported: Same as @p input.
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* @param[in] config FFT related configuration
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*/
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void configure(const ICLTensor *input, ICLTensor *output, const FFT1DInfo &config);
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/** Initialise the function's source, destinations and border mode.
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*
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* @param[in] compile_context The compile context to be used.
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* @param[in] input Source tensor. Data types supported: F32.
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* @param[out] output Destination tensor. Data types and data layouts supported: Same as @p input.
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* @param[in] config FFT related configuration
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*/
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void configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, const FFT1DInfo &config);
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/** Static function to check if given info will lead to a valid configuration of @ref CLFFT1D.
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*
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* @param[in] input Source tensor info. Data types supported: F32.
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* @param[in] output Destination tensor info. Data types and data layouts supported: Same as @p input.
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* @param[in] config FFT related configuration
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*
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* @return a status
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*/
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static Status validate(const ITensorInfo *input, const ITensorInfo *output, const FFT1DInfo &config);
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// Inherited methods overridden:
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void run() override;
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protected:
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MemoryGroup _memory_group;
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std::unique_ptr<CLFFTDigitReverseKernel> _digit_reverse_kernel;
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std::vector<std::unique_ptr<CLFFTRadixStageKernel>> _fft_kernels;
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std::unique_ptr<CLFFTScaleKernel> _scale_kernel;
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CLTensor _digit_reversed_input;
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CLTensor _digit_reverse_indices;
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unsigned int _num_ffts;
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bool _run_scale;
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};
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} // namespace arm_compute
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#endif /*ARM_COMPUTE_CLFFT1D_H */
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