From 0bc784982f183d9d50be31adb867e84c237d9fc3 Mon Sep 17 00:00:00 2001 From: Georgios Pinitas Date: Mon, 18 Mar 2019 20:07:37 +0000 Subject: COMPMID-1958: Implements 1D FFT in OpenCL. Forward complex FFT implementation. Change-Id: Ia0ba8740072e5adb06f8ead462a47abc8b5dd125 Signed-off-by: Georgios Pinitas Reviewed-on: https://review.mlplatform.org/c/904 Reviewed-by: Gian Marco Iodice Tested-by: Arm Jenkins Comments-Addressed: Arm Jenkins --- arm_compute/runtime/CL/functions/CLFFT1D.h | 79 ++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 arm_compute/runtime/CL/functions/CLFFT1D.h (limited to 'arm_compute/runtime/CL/functions/CLFFT1D.h') diff --git a/arm_compute/runtime/CL/functions/CLFFT1D.h b/arm_compute/runtime/CL/functions/CLFFT1D.h new file mode 100644 index 0000000000..1612cf7f50 --- /dev/null +++ b/arm_compute/runtime/CL/functions/CLFFT1D.h @@ -0,0 +1,79 @@ +/* + * 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_CLFFT1D_H__ +#define __ARM_COMPUTE_CLFFT1D_H__ + +#include "arm_compute/runtime/IFunction.h" + +#include "arm_compute/core/CL/kernels/CLFFTDigitReverseKernel.h" +#include "arm_compute/core/CL/kernels/CLFFTRadixStageKernel.h" +#include "arm_compute/runtime/CL/CLMemoryGroup.h" +#include "arm_compute/runtime/CL/CLTensor.h" +#include "arm_compute/runtime/FunctionDescriptors.h" + +namespace arm_compute +{ +// Forward declaration +class ICLTensor; + +/** Basic function to execute one dimensional FFT. This function calls the following OpenCL kernels: + * + * -# @ref CLFFTDigitReverseKernel Performs digit reverse + * -# @ref CLFFTRadixStageKernel A list of FFT kernels depending on the radix decomposition + */ +class CLFFT1D : public IFunction +{ +public: + /** Default Constructor */ + CLFFT1D(std::shared_ptr memory_manager = nullptr); + /** Initialise the function's source, destinations and border mode. + * + * @param[in] input Source tensor. Data types supported: F32. + * @param[out] output Destination tensor. Data types and data layouts supported: Same as @p input. + * @param[in] config FFT related configuration + */ + void configure(const ICLTensor *input, ICLTensor *output, const FFT1DInfo &config); + /** Static function to check if given info will lead to a valid configuration of @ref CLFFT1D. + * + * @param[in] input Source tensor info. Data types supported: F32. + * @param[in] output Destination tensor info. Data types and data layouts supported: Same as @p input. + * @param[in] config FFT related configuration + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *output, const FFT1DInfo &config); + + // Inherited methods overridden: + void run() override; + +protected: + CLMemoryGroup _memory_group; + CLTensor _digit_reversed_input; + CLTensor _digit_reverse_indices; + CLFFTDigitReverseKernel _digit_reverse_kernel; + std::unique_ptr _fft_kernels; + unsigned int _num_ffts; +}; +} // namespace arm_compute +#endif /*__ARM_COMPUTE_CLFFT1D_H__ */ -- cgit v1.2.1