| /* |
| * Copyright (c) 2016-2019 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. |
| */ |
| #include "arm_compute/core/NEON/kernels/NEThresholdKernel.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/ITensor.h" |
| #include "arm_compute/core/Validate.h" |
| |
| #include <arm_neon.h> |
| |
| namespace arm_compute |
| { |
| class Coordinates; |
| |
| NEThresholdKernel::NEThresholdKernel() |
| : _func(nullptr), _input(nullptr), _output(nullptr), _threshold(0), _false_value(0), _true_value(0), _upper(0) |
| { |
| } |
| |
| void NEThresholdKernel::configure(const ITensor *input, ITensor *output, uint8_t threshold, uint8_t false_value, uint8_t true_value, ThresholdType type, uint8_t upper) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8); |
| |
| _input = input; |
| _output = output; |
| _threshold = threshold; |
| _false_value = false_value; |
| _true_value = true_value; |
| _upper = upper; |
| |
| switch(type) |
| { |
| case ThresholdType::BINARY: |
| _func = &NEThresholdKernel::run_binary; |
| break; |
| case ThresholdType::RANGE: |
| _func = &NEThresholdKernel::run_range; |
| break; |
| default: |
| ARM_COMPUTE_ERROR("Thresholding type not recognized"); |
| break; |
| } |
| |
| constexpr unsigned int num_elems_processed_per_iteration = 16; |
| |
| Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration)); |
| AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); |
| update_window_and_padding(win, AccessWindowHorizontal(input->info(), 0, num_elems_processed_per_iteration), output_access); |
| output_access.set_valid_region(win, input->info()->valid_region()); |
| |
| INEKernel::configure(win); |
| } |
| |
| inline void NEThresholdKernel::run_binary(const Window &window) |
| { |
| const uint8x16_t threshold = vdupq_n_u8(_threshold); |
| const uint8x16_t true_value = vdupq_n_u8(_true_value); |
| const uint8x16_t false_value = vdupq_n_u8(_false_value); |
| |
| Iterator input(_input, window); |
| Iterator output(_output, window); |
| |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr()); |
| const uint8x16_t mask = vcgtq_u8(data, threshold); |
| |
| vst1q_u8(output.ptr(), vbslq_u8(mask, true_value, false_value)); |
| }, |
| input, output); |
| } |
| |
| inline void NEThresholdKernel::run_range(const Window &window) |
| { |
| const uint8x16_t lower_threshold = vdupq_n_u8(_threshold); |
| const uint8x16_t upper_threshold = vdupq_n_u8(_upper); |
| const uint8x16_t true_value = vdupq_n_u8(_true_value); |
| const uint8x16_t false_value = vdupq_n_u8(_false_value); |
| |
| Iterator input(_input, window); |
| Iterator output(_output, window); |
| |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr()); |
| |
| uint8x16_t mask = vcleq_u8(data, upper_threshold); |
| |
| mask = vandq_u8(vcgeq_u8(data, lower_threshold), mask); |
| |
| vst1q_u8(output.ptr(), vbslq_u8(mask, true_value, false_value)); |
| }, |
| input, output); |
| } |
| |
| void NEThresholdKernel::run(const Window &window, const ThreadInfo &info) |
| { |
| ARM_COMPUTE_UNUSED(info); |
| ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window); |
| ARM_COMPUTE_ERROR_ON(_func == nullptr); |
| |
| (this->*_func)(window); |
| } |
| } // namespace arm_compute |