From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- src/core/NEON/kernels/NEThresholdKernel.cpp | 129 ++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100644 src/core/NEON/kernels/NEThresholdKernel.cpp (limited to 'src/core/NEON/kernels/NEThresholdKernel.cpp') diff --git a/src/core/NEON/kernels/NEThresholdKernel.cpp b/src/core/NEON/kernels/NEThresholdKernel.cpp new file mode 100644 index 0000000000..72031195d9 --- /dev/null +++ b/src/core/NEON/kernels/NEThresholdKernel.cpp @@ -0,0 +1,129 @@ +/* + * Copyright (c) 2016, 2017 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 + +using namespace arm_compute; + +namespace arm_compute +{ +class Coordinates; +} // namespace arm_compute + +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; + } + + const 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 & id) + { + 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 & id) + { + 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) +{ + 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); +} -- cgit v1.2.1