| /* |
| * 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/NEGaussian5x5Kernel.h" |
| |
| #include "arm_compute/core/Coordinates.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/ITensor.h" |
| #include "arm_compute/core/NEON/INEKernel.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; |
| |
| NEGaussian5x5HorKernel::NEGaussian5x5HorKernel() |
| : _border_size(0) |
| { |
| } |
| |
| BorderSize NEGaussian5x5HorKernel::border_size() const |
| { |
| return _border_size; |
| } |
| |
| void NEGaussian5x5HorKernel::configure(const ITensor *input, ITensor *output, bool border_undefined) |
| { |
| 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::S16); |
| |
| _input = input; |
| _output = output; |
| _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_access(output->info(), 0, num_elems_written_per_iteration); |
| |
| update_window_and_padding(win, |
| AccessWindowHorizontal(input->info(), -border_size().left, num_elems_read_per_iteration), |
| output_access); |
| |
| output_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| |
| INEKernel::configure(win); |
| } |
| |
| void NEGaussian5x5HorKernel::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(_output, window); |
| |
| static const int16x8_t six = vdupq_n_s16(6); |
| static const int16x8_t four = vdupq_n_s16(4); |
| |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| 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 = vaddq_s16(data_s16.val[0], vextq_s16(data_s16.val[0], data_s16.val[1], 4)); |
| 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); |
| |
| vst1q_s16(reinterpret_cast<int16_t *>(output.ptr()), out); |
| }, |
| input, output); |
| } |
| |
| BorderSize NEGaussian5x5VertKernel::border_size() const |
| { |
| return BorderSize{ 2, 0 }; |
| } |
| |
| void NEGaussian5x5VertKernel::configure(const ITensor *input, ITensor *output, bool border_undefined) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::S16); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8); |
| |
| _input = input; |
| _output = output; |
| |
| // Configure kernel window |
| constexpr unsigned int num_elems_processed_per_iteration = 16; |
| constexpr unsigned int num_elems_read_per_iteration = 32; |
| 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_access(output->info(), 0, num_elems_written_per_iteration); |
| |
| update_window_and_padding(win, |
| AccessWindowRectangle(input->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration), |
| output_access); |
| |
| output_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); |
| |
| INEKernel::configure(win); |
| } |
| |
| void NEGaussian5x5VertKernel::run(const Window &window, const ThreadInfo &info) |
| { |
| ARM_COMPUTE_UNUSED(info); |
| ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INESimpleKernel::window(), window); |
| |
| Iterator input(_input, window); |
| Iterator output(_output, window); |
| |
| const uint8_t *input_top2_ptr = _input->ptr_to_element(Coordinates(0, -2)); |
| const uint8_t *input_top_ptr = _input->ptr_to_element(Coordinates(0, -1)); |
| const uint8_t *input_mid_ptr = _input->ptr_to_element(Coordinates(0, 0)); |
| const uint8_t *input_low_ptr = _input->ptr_to_element(Coordinates(0, 1)); |
| const uint8_t *input_low2_ptr = _input->ptr_to_element(Coordinates(0, 2)); |
| |
| const uint16x8_t six = vdupq_n_u16(6); |
| const uint16x8_t four = vdupq_n_u16(4); |
| |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| const size_t input_offset_high_s16 = input.offset(); |
| const size_t input_offset_low_s16 = input.offset() + 16; |
| |
| //HIGH DATA |
| //top2 |
| uint16x8_t data_high = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_top2_ptr + input_offset_high_s16))); |
| uint16x8_t out_high = data_high; |
| //top |
| data_high = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_top_ptr + input_offset_high_s16))); |
| out_high = vmlaq_u16(out_high, data_high, four); |
| //mid |
| data_high = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_mid_ptr + input_offset_high_s16))); |
| out_high = vmlaq_u16(out_high, data_high, six); |
| //low |
| data_high = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_low_ptr + input_offset_high_s16))); |
| out_high = vmlaq_u16(out_high, data_high, four); |
| //low2 |
| data_high = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_low2_ptr + input_offset_high_s16))); |
| out_high = vaddq_u16(out_high, data_high); |
| |
| //LOW DATA |
| //top2 |
| uint16x8_t data_low = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_top2_ptr + input_offset_low_s16))); |
| uint16x8_t out_low = data_low; |
| //top |
| data_low = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_top_ptr + input_offset_low_s16))); |
| out_low = vmlaq_u16(out_low, data_low, four); |
| //mid |
| data_low = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_mid_ptr + input_offset_low_s16))); |
| out_low = vmlaq_u16(out_low, data_low, six); |
| //low |
| data_low = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_low_ptr + input_offset_low_s16))); |
| out_low = vmlaq_u16(out_low, data_low, four); |
| //low2 |
| data_low = vreinterpretq_u16_s16(vld1q_s16(reinterpret_cast<const int16_t *>(input_low2_ptr + input_offset_low_s16))); |
| out_low = vaddq_u16(out_low, data_low); |
| |
| vst1q_u8(output.ptr(), vcombine_u8(vqshrn_n_u16(out_high, 8), |
| vqshrn_n_u16(out_low, 8))); |
| }, |
| input, output); |
| } |