| /* |
| * 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/NESobel5x5Kernel.h" |
| |
| #include "arm_compute/core/Coordinates.h" |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/ITensor.h" |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/core/Validate.h" |
| #include "arm_compute/core/Window.h" |
| |
| #include <arm_neon.h> |
| #include <cstddef> |
| #include <cstdint> |
| |
| using namespace arm_compute; |
| |
| NESobel5x5HorKernel::NESobel5x5HorKernel() |
| : _input(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false), _border_size(0) |
| { |
| } |
| |
| BorderSize NESobel5x5HorKernel::border_size() const |
| { |
| return _border_size; |
| } |
| |
| void NESobel5x5HorKernel::configure(const ITensor *input, ITensor *output_x, ITensor *output_y, bool border_undefined) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr)); |
| |
| _run_sobel_x = output_x != nullptr; |
| _run_sobel_y = output_y != nullptr; |
| |
| if(_run_sobel_x) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_x, 1, DataType::S16); |
| } |
| |
| if(_run_sobel_y) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_y, 1, DataType::S16); |
| } |
| |
| _input = input; |
| _output_x = output_x; |
| _output_y = output_y; |
| _border_size = BorderSize(border_undefined ? 0 : 2, 2); |
| |
| // Configure kernel window |
| constexpr unsigned int num_elems_processed_per_iteration = 8; |
| constexpr unsigned int num_elems_read_per_iteration = 16; |
| constexpr unsigned int num_elems_written_per_iteration = 8; |
| |
| Window win = calculate_max_window_horizontal(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); |
| AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration); |
| AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration); |
| |
| update_window_and_padding(win, |
| AccessWindowHorizontal(input->info(), -border_size().left, num_elems_read_per_iteration), |
| output_x_access, |
| output_y_access); |
| |
| output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| |
| INEKernel::configure(win); |
| } |
| |
| void NESobel5x5HorKernel::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); |
| |
| Window win_in(window); |
| win_in.shift(Window::DimX, -2); |
| |
| Iterator input(_input, win_in); |
| Iterator output_x; |
| Iterator output_y; |
| |
| if(_run_sobel_x) |
| { |
| output_x = Iterator(_output_x, window); |
| } |
| |
| if(_run_sobel_y) |
| { |
| output_y = Iterator(_output_y, window); |
| } |
| |
| if(_run_sobel_y && _run_sobel_x) |
| { |
| static const int16x8_t six = vdupq_n_s16(6); |
| static const int16x8_t four = vdupq_n_s16(4); |
| static const int16x8_t two = vdupq_n_s16(2); |
| static const int16x8_t minustwo = vdupq_n_s16(-2); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr()); |
| |
| const int16x8x2_t data_s16 = |
| { |
| { |
| vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(data))), |
| vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(data))) |
| } |
| }; |
| |
| int16x8_t out_y = data_s16.val[0]; |
| out_y = vmlaq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 1), four); |
| out_y = vmlaq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 2), six); |
| out_y = vmlaq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 3), four); |
| out_y = vaddq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); |
| |
| vst1q_s16(reinterpret_cast<int16_t *>(output_y.ptr()), out_y); |
| |
| int16x8_t out_x = vnegq_s16(data_s16.val[0]); |
| out_x = vmlaq_s16(out_x, vextq_s16(data_s16.val[0], data_s16.val[1], 1), minustwo); |
| out_x = vmlaq_s16(out_x, vextq_s16(data_s16.val[0], data_s16.val[1], 3), two); |
| out_x = vaddq_s16(out_x, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); |
| |
| vst1q_s16(reinterpret_cast<int16_t *>(output_x.ptr()), out_x); |
| }, |
| input, output_x, output_y); |
| } |
| else if(_run_sobel_x) |
| { |
| static const int16x8_t two = vdupq_n_s16(2); |
| static const int16x8_t minustwo = vdupq_n_s16(-2); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr()); |
| |
| const int16x8x2_t data_s16 = |
| { |
| { |
| vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(data))), |
| vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(data))) |
| } |
| }; |
| |
| int16x8_t out = vnegq_s16(data_s16.val[0]); |
| out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 1), minustwo); |
| out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 3), two); |
| out = vaddq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); |
| |
| vst1q_s16(reinterpret_cast<int16_t *>(output_x.ptr()), out); |
| }, |
| input, output_x); |
| } |
| else if(_run_sobel_y) |
| { |
| static const int16x8_t six = vdupq_n_s16(6); |
| static const int16x8_t four = vdupq_n_s16(4); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr()); |
| |
| const int16x8x2_t data_s16 = |
| { |
| { |
| vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(data))), |
| vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(data))) |
| } |
| }; |
| |
| int16x8_t out = data_s16.val[0]; |
| out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 1), four); |
| out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 2), six); |
| out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 3), four); |
| out = vaddq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); |
| |
| vst1q_s16(reinterpret_cast<int16_t *>(output_y.ptr()), out); |
| }, |
| input, output_y); |
| } |
| } |
| |
| NESobel5x5VertKernel::NESobel5x5VertKernel() |
| : _input_x(nullptr), _input_y(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false) |
| { |
| } |
| |
| BorderSize NESobel5x5VertKernel::border_size() const |
| { |
| return BorderSize(2, 0); |
| } |
| |
| void NESobel5x5VertKernel::configure(ITensor *input_x, ITensor *input_y, ITensor *output_x, ITensor *output_y, bool border_undefined) |
| { |
| ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr)); |
| |
| _run_sobel_x = output_x != nullptr; |
| _run_sobel_y = output_y != nullptr; |
| |
| if(_run_sobel_x) |
| { |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input_x, Format::S16); |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_x, Format::S16); |
| } |
| |
| if(_run_sobel_y) |
| { |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input_y, Format::S16); |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_y, Format::S16); |
| } |
| |
| _input_x = input_x; |
| _input_y = input_y; |
| _output_x = output_x; |
| _output_y = output_y; |
| |
| const ITensor *const input = _run_sobel_x ? input_x : input_y; |
| |
| // Configure kernel window |
| constexpr unsigned int num_elems_processed_per_iteration = 16; |
| constexpr unsigned int num_elems_read_per_iteration = 16; |
| constexpr unsigned int num_elems_written_per_iteration = 16; |
| constexpr unsigned int num_rows_read_per_iteration = 5; |
| |
| Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); |
| AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration); |
| AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration); |
| |
| update_window_and_padding(win, |
| AccessWindowRectangle(input_x == nullptr ? nullptr : input_x->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration), |
| AccessWindowRectangle(input_y == nullptr ? nullptr : input_y->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration), |
| output_x_access, |
| output_y_access); |
| |
| output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| |
| INEKernel::configure(win); |
| } |
| |
| void NESobel5x5VertKernel::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); |
| |
| Iterator input_x; |
| Iterator input_y; |
| Iterator output_x; |
| Iterator output_y; |
| |
| const int16_t *input_x_low2_ptr = nullptr; |
| const int16_t *input_x_low_ptr = nullptr; |
| const int16_t *input_x_mid_ptr = nullptr; |
| const int16_t *input_x_top_ptr = nullptr; |
| const int16_t *input_x_top2_ptr = nullptr; |
| |
| const int16_t *input_y_low2_ptr = nullptr; |
| const int16_t *input_y_low_ptr = nullptr; |
| const int16_t *input_y_top_ptr = nullptr; |
| const int16_t *input_y_top2_ptr = nullptr; |
| |
| if(_run_sobel_x) |
| { |
| input_x = Iterator(_input_x, window); |
| output_x = Iterator(_output_x, window); |
| input_x_top2_ptr = reinterpret_cast<const int16_t *>(_input_x->ptr_to_element(Coordinates(0, -2))); |
| input_x_top_ptr = reinterpret_cast<const int16_t *>(_input_x->ptr_to_element(Coordinates(0, -1))); |
| input_x_mid_ptr = reinterpret_cast<const int16_t *>(_input_x->ptr_to_element(Coordinates(0, 0))); |
| input_x_low_ptr = reinterpret_cast<const int16_t *>(_input_x->ptr_to_element(Coordinates(0, 1))); |
| input_x_low2_ptr = reinterpret_cast<const int16_t *>(_input_x->ptr_to_element(Coordinates(0, 2))); |
| } |
| |
| if(_run_sobel_y) |
| { |
| input_y = Iterator(_input_y, window); |
| output_y = Iterator(_output_y, window); |
| input_y_top2_ptr = reinterpret_cast<const int16_t *>(_input_y->ptr_to_element(Coordinates(0, -2))); |
| input_y_top_ptr = reinterpret_cast<const int16_t *>(_input_y->ptr_to_element(Coordinates(0, -1))); |
| input_y_low_ptr = reinterpret_cast<const int16_t *>(_input_y->ptr_to_element(Coordinates(0, 1))); |
| input_y_low2_ptr = reinterpret_cast<const int16_t *>(_input_y->ptr_to_element(Coordinates(0, 2))); |
| } |
| |
| static const int16x8_t six = vdupq_n_s16(6); |
| static const int16x8_t four = vdupq_n_s16(4); |
| static const int16x8_t two = vdupq_n_s16(2); |
| static const int16x8_t minustwo = vdupq_n_s16(-2); |
| |
| if(_run_sobel_x) |
| { |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| // Convert offset from uint8_t* to uint16_t* |
| const size_t input_offset_high_s16 = input_x.offset() / 2; |
| const size_t input_offset_low_s16 = input_offset_high_s16 + 8; |
| |
| //HIGH DATA |
| //top2 |
| int16x8_t data_high = vld1q_s16(input_x_top2_ptr + input_offset_high_s16); |
| int16x8_t out_high = data_high; |
| //top |
| data_high = vld1q_s16(input_x_top_ptr + input_offset_high_s16); |
| out_high = vmlaq_s16(out_high, data_high, four); |
| //mid |
| data_high = vld1q_s16(input_x_mid_ptr + input_offset_high_s16); |
| out_high = vmlaq_s16(out_high, data_high, six); |
| //low |
| data_high = vld1q_s16(input_x_low_ptr + input_offset_high_s16); |
| out_high = vmlaq_s16(out_high, data_high, four); |
| //low2 |
| data_high = vld1q_s16(input_x_low2_ptr + input_offset_high_s16); |
| out_high = vaddq_s16(out_high, data_high); |
| |
| vst1q_s16((reinterpret_cast<int16_t *>(output_x.ptr())), out_high); |
| |
| //LOW DATA |
| //top2 |
| int16x8_t data_low = vld1q_s16(input_x_top2_ptr + input_offset_low_s16); |
| int16x8_t out_low = data_low; |
| //top |
| data_low = vld1q_s16(input_x_top_ptr + input_offset_low_s16); |
| out_low = vmlaq_s16(out_low, data_low, four); |
| //mid |
| data_low = vld1q_s16(input_x_mid_ptr + input_offset_low_s16); |
| out_low = vmlaq_s16(out_low, data_low, six); |
| //low |
| data_low = vld1q_s16(input_x_low_ptr + input_offset_low_s16); |
| out_low = vmlaq_s16(out_low, data_low, four); |
| //low2 |
| data_low = vld1q_s16(input_x_low2_ptr + input_offset_low_s16); |
| out_low = vaddq_s16(out_low, data_low); |
| |
| vst1q_s16((reinterpret_cast<int16_t *>(output_x.ptr())) + 8, out_low); |
| }, |
| input_x, output_x); |
| } |
| |
| if(_run_sobel_y) |
| { |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| // Convert offset from uint8_t* to uint16_t* |
| const size_t input_offset_high_s16 = input_y.offset() / 2; |
| const size_t input_offset_low_s16 = input_offset_high_s16 + 8; |
| |
| //HIGH DATA |
| //top2 |
| int16x8_t data_high = vld1q_s16(input_y_top2_ptr + input_offset_high_s16); |
| int16x8_t out_high = vnegq_s16(data_high); |
| //top |
| data_high = vld1q_s16(input_y_top_ptr + input_offset_high_s16); |
| out_high = vmlaq_s16(out_high, data_high, minustwo); |
| //low |
| data_high = vld1q_s16(input_y_low_ptr + input_offset_high_s16); |
| out_high = vmlaq_s16(out_high, data_high, two); |
| //low2 |
| data_high = vld1q_s16(input_y_low2_ptr + input_offset_high_s16); |
| out_high = vaddq_s16(out_high, data_high); |
| |
| vst1q_s16((reinterpret_cast<int16_t *>(output_y.ptr())), out_high); |
| |
| //LOW DATA |
| //top2 |
| int16x8_t data_low = vld1q_s16(input_y_top2_ptr + input_offset_low_s16); |
| int16x8_t out_low = vnegq_s16(data_low); |
| //top |
| data_low = vld1q_s16(input_y_top_ptr + input_offset_low_s16); |
| out_low = vmlaq_s16(out_low, data_low, minustwo); |
| //low |
| data_low = vld1q_s16(input_y_low_ptr + input_offset_low_s16); |
| out_low = vmlaq_s16(out_low, data_low, two); |
| //low2 |
| data_low = vld1q_s16(input_y_low2_ptr + input_offset_low_s16); |
| out_low = vaddq_s16(out_low, data_low); |
| |
| vst1q_s16((reinterpret_cast<int16_t *>(output_y.ptr())) + 8, out_low); |
| }, |
| input_y, output_y); |
| } |
| } |