giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 1 | /* |
ramelg01 | cbbb038 | 2021-09-17 17:36:57 +0100 | [diff] [blame^] | 2 | * Copyright (c) 2019-2021 Arm Limited. |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 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 | #include "arm_compute/runtime/NEON/functions/NEFFT1D.h" |
| 25 | |
| 26 | #include "arm_compute/core/ITensor.h" |
| 27 | #include "arm_compute/core/Validate.h" |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 28 | #include "arm_compute/runtime/NEON/NEScheduler.h" |
ramelg01 | cbbb038 | 2021-09-17 17:36:57 +0100 | [diff] [blame^] | 29 | #include "src/common/utils/Log.h" |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 30 | #include "src/core/NEON/kernels/NEFFTDigitReverseKernel.h" |
| 31 | #include "src/core/NEON/kernels/NEFFTRadixStageKernel.h" |
| 32 | #include "src/core/NEON/kernels/NEFFTScaleKernel.h" |
Sang-Hoon Park | 68dd25f | 2020-10-19 16:00:11 +0100 | [diff] [blame] | 33 | #include "src/core/utils/helpers/fft.h" |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 34 | |
| 35 | namespace arm_compute |
| 36 | { |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 37 | NEFFT1D::~NEFFT1D() = default; |
| 38 | |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 39 | NEFFT1D::NEFFT1D(std::shared_ptr<IMemoryManager> memory_manager) |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 40 | : _memory_group(std::move(memory_manager)), _digit_reverse_kernel(), _fft_kernels(), _scale_kernel(), _digit_reversed_input(), _digit_reverse_indices(), _num_ffts(0), _axis(0), _run_scale(false) |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 41 | { |
| 42 | } |
| 43 | |
| 44 | void NEFFT1D::configure(const ITensor *input, ITensor *output, const FFT1DInfo &config) |
| 45 | { |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 46 | ARM_COMPUTE_ERROR_ON_NULLPTR(input, output); |
| 47 | ARM_COMPUTE_ERROR_THROW_ON(NEFFT1D::validate(input->info(), output->info(), config)); |
ramelg01 | cbbb038 | 2021-09-17 17:36:57 +0100 | [diff] [blame^] | 48 | ARM_COMPUTE_LOG_PARAMS(input, output, config); |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 49 | |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 50 | // Decompose size to radix factors |
| 51 | const auto supported_radix = NEFFTRadixStageKernel::supported_radix(); |
| 52 | const unsigned int N = input->info()->tensor_shape()[config.axis]; |
| 53 | const auto decomposed_vector = arm_compute::helpers::fft::decompose_stages(N, supported_radix); |
| 54 | ARM_COMPUTE_ERROR_ON(decomposed_vector.empty()); |
| 55 | |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 56 | // Flags |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 57 | _run_scale = config.direction == FFTDirection::Inverse; |
| 58 | |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 59 | const bool is_c2r = input->info()->num_channels() == 2 && output->info()->num_channels() == 1; |
| 60 | |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 61 | // Configure digit reverse |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 62 | FFTDigitReverseKernelInfo digit_reverse_config; |
| 63 | digit_reverse_config.axis = config.axis; |
| 64 | digit_reverse_config.conjugate = config.direction == FFTDirection::Inverse; |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 65 | TensorInfo digit_reverse_indices_info(TensorShape(input->info()->tensor_shape()[config.axis]), 1, DataType::U32); |
| 66 | _digit_reverse_indices.allocator()->init(digit_reverse_indices_info); |
| 67 | _memory_group.manage(&_digit_reversed_input); |
Georgios Pinitas | 40f51a6 | 2020-11-21 03:04:18 +0000 | [diff] [blame] | 68 | _digit_reverse_kernel = std::make_unique<NEFFTDigitReverseKernel>(); |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 69 | _digit_reverse_kernel->configure(input, &_digit_reversed_input, &_digit_reverse_indices, digit_reverse_config); |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 70 | |
| 71 | // Create and configure FFT kernels |
| 72 | unsigned int Nx = 1; |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 73 | _num_ffts = decomposed_vector.size(); |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 74 | _fft_kernels.resize(_num_ffts); |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 75 | _axis = config.axis; |
| 76 | |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 77 | for(unsigned int i = 0; i < _num_ffts; ++i) |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 78 | { |
| 79 | const unsigned int radix_for_stage = decomposed_vector.at(i); |
| 80 | |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 81 | FFTRadixStageKernelInfo fft_kernel_info; |
| 82 | fft_kernel_info.axis = config.axis; |
| 83 | fft_kernel_info.radix = radix_for_stage; |
| 84 | fft_kernel_info.Nx = Nx; |
| 85 | fft_kernel_info.is_first_stage = (i == 0); |
Georgios Pinitas | 40f51a6 | 2020-11-21 03:04:18 +0000 | [diff] [blame] | 86 | _fft_kernels[i] = std::make_unique<NEFFTRadixStageKernel>(); |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 87 | _fft_kernels[i]->configure(&_digit_reversed_input, ((i == (_num_ffts - 1)) && !is_c2r) ? output : nullptr, fft_kernel_info); |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 88 | |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 89 | Nx *= radix_for_stage; |
| 90 | } |
| 91 | |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 92 | // Configure scale kernel |
| 93 | if(_run_scale) |
| 94 | { |
| 95 | FFTScaleKernelInfo scale_config; |
| 96 | scale_config.scale = static_cast<float>(N); |
| 97 | scale_config.conjugate = config.direction == FFTDirection::Inverse; |
Georgios Pinitas | 40f51a6 | 2020-11-21 03:04:18 +0000 | [diff] [blame] | 98 | _scale_kernel = std::make_unique<NEFFTScaleKernel>(); |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 99 | is_c2r ? _scale_kernel->configure(&_digit_reversed_input, output, scale_config) : _scale_kernel->configure(output, nullptr, scale_config); |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 100 | } |
| 101 | |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 102 | // Allocate tensors |
| 103 | _digit_reversed_input.allocator()->allocate(); |
| 104 | _digit_reverse_indices.allocator()->allocate(); |
| 105 | |
| 106 | // Init digit reverse indices |
| 107 | const auto digit_reverse_cpu = arm_compute::helpers::fft::digit_reverse_indices(N, decomposed_vector); |
| 108 | std::copy_n(digit_reverse_cpu.data(), N, reinterpret_cast<unsigned int *>(_digit_reverse_indices.buffer())); |
| 109 | } |
| 110 | |
| 111 | Status NEFFT1D::validate(const ITensorInfo *input, const ITensorInfo *output, const FFT1DInfo &config) |
| 112 | { |
| 113 | ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input, output); |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 114 | ARM_COMPUTE_RETURN_ERROR_ON(input->data_type() != DataType::F32); |
| 115 | ARM_COMPUTE_RETURN_ERROR_ON(input->num_channels() > 2); |
| 116 | ARM_COMPUTE_RETURN_ERROR_ON(std::set<unsigned int>({ 0, 1 }).count(config.axis) == 0); |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 117 | |
| 118 | // Check if FFT is decomposable |
| 119 | const auto supported_radix = NEFFTRadixStageKernel::supported_radix(); |
| 120 | const unsigned int N = input->tensor_shape()[config.axis]; |
| 121 | const auto decomposed_vector = arm_compute::helpers::fft::decompose_stages(N, supported_radix); |
| 122 | ARM_COMPUTE_RETURN_ERROR_ON(decomposed_vector.empty()); |
| 123 | |
| 124 | // Checks performed when output is configured |
| 125 | if((output != nullptr) && (output->total_size() != 0)) |
| 126 | { |
giuros01 | 154bc1c | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 127 | // All combinations are supported except real input with real output (i.e., both input channels set to 1) |
| 128 | ARM_COMPUTE_RETURN_ERROR_ON(output->num_channels() == 1 && input->num_channels() == 1); |
| 129 | ARM_COMPUTE_RETURN_ERROR_ON(output->num_channels() > 2); |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 130 | ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(input, output); |
| 131 | ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); |
| 132 | } |
| 133 | |
| 134 | return Status{}; |
| 135 | } |
| 136 | |
| 137 | void NEFFT1D::run() |
| 138 | { |
| 139 | MemoryGroupResourceScope scope_mg(_memory_group); |
| 140 | |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 141 | NEScheduler::get().schedule(_digit_reverse_kernel.get(), (_axis == 0 ? Window::DimY : Window::DimZ)); |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 142 | |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 143 | for(unsigned int i = 0; i < _num_ffts; ++i) |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 144 | { |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 145 | NEScheduler::get().schedule(_fft_kernels[i].get(), (_axis == 0 ? Window::DimY : Window::DimX)); |
giuros01 | 05fb448 | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | // Run output scaling |
| 149 | if(_run_scale) |
| 150 | { |
Michalis Spyrou | ebcebf1 | 2020-10-21 00:04:14 +0100 | [diff] [blame] | 151 | NEScheduler::get().schedule(_scale_kernel.get(), Window::DimY); |
giuros01 | 14c4e0f | 2019-03-26 17:44:40 +0000 | [diff] [blame] | 152 | } |
| 153 | } |
| 154 | } // namespace arm_compute |