| /* |
| * 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 "src/core/NEON/kernels/NESobel7x7Kernel.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/ITensor.h" |
| #include "arm_compute/core/TensorInfo.h" |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/core/Utils.h" |
| #include "arm_compute/core/Validate.h" |
| #include "src/core/helpers/AutoConfiguration.h" |
| #include "src/core/helpers/WindowHelpers.h" |
| |
| #include <arm_neon.h> |
| #include <cstdint> |
| |
| using namespace arm_compute; |
| |
| namespace arm_compute |
| { |
| class Coordinates; |
| } // namespace arm_compute |
| |
| namespace |
| { |
| const int32x4_t minusfour = vdupq_n_s32(-4); |
| const int32x4_t minusfive = vdupq_n_s32(-5); |
| const int32x4_t four = vdupq_n_s32(4); |
| const int32x4_t five = vdupq_n_s32(5); |
| const int32x4_t six = vdupq_n_s32(6); |
| const int32x4_t fifteen = vdupq_n_s32(15); |
| const int32x4_t twenty = vdupq_n_s32(20); |
| |
| inline int32x4x2_t compute_hor_sobel_x(const int32x4x4_t &data) |
| { |
| int32x4x2_t out = |
| { |
| { |
| vnegq_s32(data.val[0]), |
| vnegq_s32(data.val[1]) |
| } |
| }; |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[0], data.val[1], 1), minusfour); |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[0], data.val[1], 2), minusfive); |
| |
| out.val[0] = vmlaq_s32(out.val[0], data.val[1], five); |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[1], data.val[2], 1), four); |
| |
| out.val[0] = vaddq_s32(out.val[0], |
| vextq_s32(data.val[1], data.val[2], 2)); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[1], data.val[2], 1), minusfour); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[1], data.val[2], 2), minusfive); |
| |
| out.val[1] = vmlaq_s32(out.val[1], data.val[2], five); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[2], data.val[3], 1), four); |
| |
| out.val[1] = vaddq_s32(out.val[1], |
| vextq_s32(data.val[2], data.val[3], 2)); |
| |
| return out; |
| } |
| |
| inline int32x4x2_t compute_hor_sobel_y(const int32x4x4_t &data) |
| { |
| int32x4x2_t out = |
| { |
| { |
| data.val[0], |
| data.val[1] |
| } |
| }; |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[0], data.val[1], 1), six); |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[0], data.val[1], 2), fifteen); |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[0], data.val[1], 3), twenty); |
| |
| out.val[0] = vmlaq_s32(out.val[0], data.val[1], fifteen); |
| |
| out.val[0] = vmlaq_s32(out.val[0], |
| vextq_s32(data.val[1], data.val[2], 1), six); |
| |
| out.val[0] = vaddq_s32(out.val[0], |
| vextq_s32(data.val[1], data.val[2], 2)); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[1], data.val[2], 1), six); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[1], data.val[2], 2), fifteen); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[1], data.val[2], 3), twenty); |
| |
| out.val[1] = vmlaq_s32(out.val[1], data.val[2], fifteen); |
| |
| out.val[1] = vmlaq_s32(out.val[1], |
| vextq_s32(data.val[2], data.val[3], 1), six); |
| |
| out.val[1] = vaddq_s32(out.val[1], |
| vextq_s32(data.val[2], data.val[3], 2)); |
| |
| return out; |
| } |
| } // namespace |
| |
| NESobel7x7HorKernel::NESobel7x7HorKernel() |
| : _input(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false), _border_size(0) |
| { |
| } |
| |
| BorderSize NESobel7x7HorKernel::border_size() const |
| { |
| return _border_size; |
| } |
| |
| void NESobel7x7HorKernel::configure(const ITensor *input, ITensor *output_x, ITensor *output_y, bool border_undefined) |
| { |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input, Format::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_FORMAT_NOT_IN(output_x, Format::S32); |
| } |
| |
| if(_run_sobel_y) |
| { |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_y, Format::S32); |
| } |
| |
| _input = input; |
| _output_x = output_x; |
| _output_y = output_y; |
| _border_size = BorderSize(border_undefined ? 0 : 3, 3); |
| |
| // 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 NESobel7x7HorKernel::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(_input, window); |
| 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) |
| { |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr() - 3); |
| |
| const uint16x8_t tmp_low_u16 = vmovl_u8(vget_low_u8(data)); |
| const uint16x8_t tmp_high_u16 = vmovl_u8(vget_high_u8(data)); |
| |
| const int32x4x4_t data_s32 = |
| { |
| { |
| vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(tmp_low_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(tmp_low_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(tmp_high_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(tmp_high_u16))) |
| } |
| }; |
| |
| const int32x4x2_t out_y = compute_hor_sobel_y(data_s32); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_y.ptr()), out_y.val[0]); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_y.ptr()) + 4, out_y.val[1]); |
| |
| const int32x4x2_t out_x = compute_hor_sobel_x(data_s32); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_x.ptr()), out_x.val[0]); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_x.ptr()) + 4, out_x.val[1]); |
| }, |
| input, output_x, output_y); |
| } |
| else if(_run_sobel_x) |
| { |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr() - 3); |
| |
| const uint16x8_t tmp_low_u16 = vmovl_u8(vget_low_u8(data)); |
| const uint16x8_t tmp_high_u16 = vmovl_u8(vget_high_u8(data)); |
| |
| const int32x4x4_t data_s32 = |
| { |
| { |
| vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(tmp_low_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(tmp_low_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(tmp_high_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(tmp_high_u16))) |
| } |
| }; |
| |
| const int32x4x2_t out = compute_hor_sobel_x(data_s32); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_x.ptr()), out.val[0]); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_x.ptr()) + 4, out.val[1]); |
| }, |
| input, output_x); |
| } |
| else if(_run_sobel_y) |
| { |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| const uint8x16_t data = vld1q_u8(input.ptr() - 3); |
| |
| const uint16x8_t tmp_low_u16 = vmovl_u8(vget_low_u8(data)); |
| const uint16x8_t tmp_high_u16 = vmovl_u8(vget_high_u8(data)); |
| |
| const int32x4x4_t data_s32 = |
| { |
| { |
| vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(tmp_low_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(tmp_low_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(tmp_high_u16))), |
| vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(tmp_high_u16))) |
| } |
| }; |
| |
| const int32x4x2_t out = compute_hor_sobel_y(data_s32); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_y.ptr()), out.val[0]); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_y.ptr()) + 4, out.val[1]); |
| }, |
| input, output_y); |
| } |
| } |
| |
| NESobel7x7VertKernel::NESobel7x7VertKernel() |
| : _input_x(nullptr), _input_y(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false) |
| { |
| } |
| |
| BorderSize NESobel7x7VertKernel::border_size() const |
| { |
| return BorderSize{ 3, 0 }; |
| } |
| |
| void NESobel7x7VertKernel::configure(const ITensor *input_x, const 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::S32); |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_x, Format::S32); |
| } |
| |
| if(_run_sobel_y) |
| { |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input_y, Format::S32); |
| ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_y, Format::S32); |
| } |
| |
| _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 = 8; |
| constexpr unsigned int num_elems_read_per_iteration = 8; |
| constexpr unsigned int num_elems_written_per_iteration = 8; |
| constexpr unsigned int num_rows_read_per_iteration = 7; |
| |
| 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 NESobel7x7VertKernel::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; |
| |
| int32_t in_x_stride = 0; |
| int32_t in_y_stride = 0; |
| |
| if(_run_sobel_x) |
| { |
| input_x = Iterator(_input_x, window); |
| output_x = Iterator(_output_x, window); |
| in_x_stride = _input_x->info()->strides_in_bytes()[1] / pixel_size_from_format(_input_x->info()->format()); |
| } |
| |
| if(_run_sobel_y) |
| { |
| input_y = Iterator(_input_y, window); |
| output_y = Iterator(_output_y, window); |
| in_y_stride = _input_y->info()->strides_in_bytes()[1] / pixel_size_from_format(_input_y->info()->format()); |
| } |
| |
| if(_run_sobel_x) |
| { |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| auto in_ptr = reinterpret_cast<int32_t *>(input_x.ptr()) - 3 * in_x_stride; |
| |
| //top3 |
| int32x4x2_t data = |
| { |
| { |
| vld1q_s32(in_ptr), |
| vld1q_s32(in_ptr + 4) |
| } |
| }; |
| |
| int32x4x2_t out = data; |
| |
| //top2 |
| in_ptr += in_x_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], six); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], six); |
| |
| //top |
| in_ptr += in_x_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], fifteen); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], fifteen); |
| |
| //mid |
| in_ptr += in_x_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], twenty); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], twenty); |
| |
| //low |
| in_ptr += in_x_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], fifteen); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], fifteen); |
| |
| //low2 |
| in_ptr += in_x_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], six); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], six); |
| |
| //low3 |
| in_ptr += in_x_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vaddq_s32(out.val[0], data.val[0]); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vaddq_s32(out.val[1], data.val[1]); |
| |
| vst1q_s32(reinterpret_cast<int32_t *>(output_x.ptr()) + 0, out.val[0]); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_x.ptr()) + 4, out.val[1]); |
| }, |
| input_x, output_x); |
| } |
| |
| if(_run_sobel_y) |
| { |
| execute_window_loop(window, [&](const Coordinates &) |
| { |
| auto in_ptr = reinterpret_cast<int32_t *>(input_y.ptr()) - 3 * in_y_stride; |
| |
| //top3 |
| int32x4x2_t data = |
| { |
| { |
| vld1q_s32(in_ptr), |
| vld1q_s32(in_ptr + 4) |
| } |
| }; |
| |
| int32x4x2_t out = |
| { |
| { |
| vnegq_s32(data.val[0]), |
| vnegq_s32(data.val[1]) |
| } |
| }; |
| |
| //top2 |
| in_ptr += in_y_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], minusfour); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], minusfour); |
| |
| //top |
| in_ptr += in_y_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], minusfive); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], minusfive); |
| |
| //low |
| in_ptr += (2 * in_y_stride); |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], five); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], five); |
| |
| //low2 |
| in_ptr += in_y_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vmlaq_s32(out.val[0], data.val[0], four); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vmlaq_s32(out.val[1], data.val[1], four); |
| |
| //low3 |
| in_ptr += in_y_stride; |
| data.val[0] = vld1q_s32(in_ptr); |
| out.val[0] = vaddq_s32(out.val[0], data.val[0]); |
| |
| data.val[1] = vld1q_s32(in_ptr + 4); |
| out.val[1] = vaddq_s32(out.val[1], data.val[1]); |
| |
| vst1q_s32(reinterpret_cast<int32_t *>(output_y.ptr()) + 0, out.val[0]); |
| vst1q_s32(reinterpret_cast<int32_t *>(output_y.ptr()) + 4, out.val[1]); |
| }, |
| input_y, output_y); |
| } |
| } |