| /* |
| * Copyright (c) 2016-2020 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 "src/core/NEON/wrapper/wrapper.h" |
| |
| namespace arm_compute |
| { |
| namespace |
| { |
| Status validate_arguments(const ITensorInfo *input, const ITensorInfo *output, const ThresholdKernelInfo &info) |
| { |
| ARM_COMPUTE_UNUSED(info); |
| ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8); |
| |
| // Checks performed when output is configured |
| if((output != nullptr) && (output->total_size() != 0)) |
| { |
| ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(input, output); |
| ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); |
| } |
| |
| return Status{}; |
| } |
| |
| std::pair<Status, Window> validate_and_configure_window(ITensorInfo *input, ITensorInfo *output) |
| { |
| // Configure kernel window |
| Window win = calculate_max_window(*input, Steps()); |
| |
| // Output auto inizialitation if not yet initialized |
| auto_init_if_empty(*output, *input->clone()); |
| |
| // NEThresholdKernel doesn't need padding so update_window_and_padding() can be skipped |
| Coordinates coord; |
| coord.set_num_dimensions(output->num_dimensions()); |
| output->set_valid_region(ValidRegion(coord, output->tensor_shape())); |
| |
| return std::make_pair(Status{}, win); |
| } |
| } // namespace |
| |
| NEThresholdKernel::NEThresholdKernel() |
| : _func(nullptr), _input(nullptr), _output(nullptr), _info() |
| { |
| } |
| |
| void NEThresholdKernel::configure(const ITensor *input, ITensor *output, const ThresholdKernelInfo &info) |
| { |
| ARM_COMPUTE_ERROR_ON_NULLPTR(input, output); |
| ARM_COMPUTE_ERROR_THROW_ON(validate(input->info(), output->info(), info)); |
| |
| _input = input; |
| _output = output; |
| _info = info; |
| |
| switch(_info.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; |
| } |
| |
| // Configure kernel window |
| auto win_config = validate_and_configure_window(input->info(), output->info()); |
| ARM_COMPUTE_ERROR_THROW_ON(win_config.first); |
| ICPPKernel::configure(win_config.second); |
| } |
| |
| Status NEThresholdKernel::validate(const ITensorInfo *input, const ITensorInfo *output, const ThresholdKernelInfo &info) |
| { |
| ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(input, output, info)); |
| ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(input->clone().get(), output->clone().get()).first); |
| |
| return Status{}; |
| } |
| |
| inline void NEThresholdKernel::run_binary(const Window &window) |
| { |
| /** NEON vector tag type. */ |
| using Type = uint8_t; |
| using ExactTagType = typename wrapper::traits::neon_bitvector_tag_t<Type, wrapper::traits::BitWidth::W128>; |
| |
| const int window_step_x = 16 / sizeof(Type); |
| const auto window_start_x = static_cast<int>(window.x().start()); |
| const auto window_end_x = static_cast<int>(window.x().end()); |
| |
| Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); |
| win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); |
| |
| const uint8_t threshold = _info.threshold; |
| const uint8_t true_value = _info.true_value; |
| const uint8_t false_value = _info.false_value; |
| |
| const auto vthreshold = wrapper::vdup_n(threshold, ExactTagType{}); |
| const auto vtrue_value = wrapper::vdup_n(true_value, ExactTagType{}); |
| const auto vfalse_value = wrapper::vdup_n(false_value, ExactTagType{}); |
| |
| Iterator input(_input, win_collapsed); |
| Iterator output(_output, win_collapsed); |
| |
| execute_window_loop(win_collapsed, [&](const Coordinates &) |
| { |
| const auto input_ptr = reinterpret_cast<const Type *>(input.ptr()); |
| const auto output_ptr = reinterpret_cast<Type *>(output.ptr()); |
| |
| int x = window_start_x; |
| for(; x <= (window_end_x - window_step_x); x += window_step_x) |
| { |
| const auto vdata = wrapper::vloadq(input_ptr + x); |
| const auto vmask = wrapper::vcgt(vdata, vthreshold); |
| wrapper::vstore(output_ptr + x, wrapper::vbsl(vmask, vtrue_value, vfalse_value)); |
| } |
| |
| for(; x < window_end_x; ++x) |
| { |
| const Type data = *(reinterpret_cast<const Type *>(input_ptr + x)); |
| *(output_ptr + x) = (data > threshold) ? true_value : false_value; |
| } |
| }, |
| input, output); |
| } |
| |
| inline void NEThresholdKernel::run_range(const Window &window) |
| { |
| /** NEON vector tag type. */ |
| using Type = uint8_t; |
| using ExactTagType = typename wrapper::traits::neon_bitvector_tag_t<Type, wrapper::traits::BitWidth::W128>; |
| |
| const int window_step_x = 16 / sizeof(Type); |
| const auto window_start_x = static_cast<int>(window.x().start()); |
| const auto window_end_x = static_cast<int>(window.x().end()); |
| |
| Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); |
| win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); |
| |
| const uint8_t lower_threshold = _info.threshold; |
| const uint8_t upper_threshold = _info.upper; |
| const uint8_t true_value = _info.true_value; |
| const uint8_t false_value = _info.false_value; |
| |
| const auto vlower_threshold = wrapper::vdup_n(lower_threshold, ExactTagType{}); |
| const auto vupper_threshold = wrapper::vdup_n(upper_threshold, ExactTagType{}); |
| const auto vtrue_value = wrapper::vdup_n(true_value, ExactTagType{}); |
| const auto vfalse_value = wrapper::vdup_n(false_value, ExactTagType{}); |
| |
| Iterator input(_input, win_collapsed); |
| Iterator output(_output, win_collapsed); |
| |
| execute_window_loop(win_collapsed, [&](const Coordinates &) |
| { |
| const auto input_ptr = reinterpret_cast<const Type *>(input.ptr()); |
| const auto output_ptr = reinterpret_cast<Type *>(output.ptr()); |
| |
| int x = window_start_x; |
| for(; x <= (window_end_x - window_step_x); x += window_step_x) |
| { |
| const auto vdata = wrapper::vloadq(input_ptr + x); |
| auto vmask = wrapper::vcle(vdata, vupper_threshold); |
| vmask = wrapper::vand(wrapper::vcge(vdata, vlower_threshold), vmask); |
| wrapper::vstore(output_ptr + x, wrapper::vbsl(vmask, vtrue_value, vfalse_value)); |
| } |
| |
| for(; x < window_end_x; ++x) |
| { |
| const Type data = *(reinterpret_cast<const Type *>(input_ptr + x)); |
| *(output_ptr + x) = (data <= upper_threshold && data >= lower_threshold) ? 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 |