| /* |
| * 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/NEAbsoluteDifferenceKernel.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/IAccessWindow.h" |
| #include "arm_compute/core/ITensor.h" |
| #include "arm_compute/core/TensorInfo.h" |
| #include "arm_compute/core/Types.h" |
| #include "arm_compute/core/Validate.h" |
| |
| #include <arm_neon.h> |
| #include <cstdint> |
| |
| using namespace arm_compute; |
| |
| namespace arm_compute |
| { |
| class Coordinates; |
| } // namespace arm_compute |
| |
| namespace |
| { |
| void abs_diff_U8_U8_U8(const ITensor *in1, const ITensor *in2, ITensor *out, const Window &window) |
| { |
| Iterator input1(in1, window); |
| Iterator input2(in2, window); |
| Iterator output(out, window); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const uint8x16_t input1_val = vld1q_u8(input1.ptr()); |
| const uint8x16_t input2_val = vld1q_u8(input2.ptr()); |
| |
| vst1q_u8(output.ptr(), vabdq_u8(input1_val, input2_val)); |
| }, |
| input1, input2, output); |
| } |
| |
| inline int16x8x2_t vqabd2q_s16(const int16x8x2_t &v1, const int16x8x2_t &v2) |
| { |
| const int16x8x2_t res = |
| { |
| { |
| vqabsq_s16(vqsubq_s16(v1.val[0], v2.val[0])), |
| vqabsq_s16(vqsubq_s16(v1.val[1], v2.val[1])) |
| } |
| }; |
| |
| return res; |
| } |
| |
| void abs_diff_S16_S16_S16(const ITensor *in1, const ITensor *in2, ITensor *out, const Window &window) |
| { |
| Iterator input1(in1, window); |
| Iterator input2(in2, window); |
| Iterator output(out, window); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| int16x8x2_t input1_val = vld2q_s16(reinterpret_cast<const int16_t *>(input1.ptr())); |
| int16x8x2_t input2_val = vld2q_s16(reinterpret_cast<const int16_t *>(input2.ptr())); |
| vst2q_s16(reinterpret_cast<int16_t *>(output.ptr()), vqabd2q_s16(input1_val, input2_val)); |
| }, |
| input1, input2, output); |
| } |
| |
| void abs_diff_U8_S16_S16(const ITensor *in1, const ITensor *in2, ITensor *out, const Window &window) |
| { |
| Iterator input1(in1, window); |
| Iterator input2(in2, window); |
| Iterator output(out, window); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const uint8x16_t input1_val = vld1q_u8(input1.ptr()); |
| const int16x8x2_t input2_val = |
| { |
| { |
| vld1q_s16(reinterpret_cast<const int16_t *>(input2.ptr())), |
| vld1q_s16(reinterpret_cast<const int16_t *>(input2.ptr()) + 8) |
| } |
| }; |
| |
| const int16x8x2_t out_val = |
| { |
| { |
| vqabsq_s16(vqsubq_s16(vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(input1_val))), input2_val.val[0])), |
| vqabsq_s16(vqsubq_s16(vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(input1_val))), input2_val.val[1])) |
| } |
| }; |
| |
| vst1q_s16(reinterpret_cast<int16_t *>(output.ptr()), out_val.val[0]); |
| vst1q_s16(reinterpret_cast<int16_t *>(output.ptr()) + 8, out_val.val[1]); |
| |
| }, |
| input1, input2, output); |
| } |
| |
| void abs_diff_S16_U8_S16(const ITensor *in1, const ITensor *in2, ITensor *out, const Window &window) |
| { |
| abs_diff_U8_S16_S16(in2, in1, out, window); |
| } |
| } // namespace |
| |
| NEAbsoluteDifferenceKernel::NEAbsoluteDifferenceKernel() |
| : _func(nullptr), _input1(nullptr), _input2(nullptr), _output(nullptr) |
| { |
| } |
| |
| void NEAbsoluteDifferenceKernel::configure(const ITensor *input1, const ITensor *input2, ITensor *output) |
| { |
| ARM_COMPUTE_ERROR_ON_NULLPTR(input1, input2, output); |
| |
| set_shape_if_empty(*output->info(), input1->info()->tensor_shape()); |
| |
| if(input1->info()->data_type() == DataType::S16 || input2->info()->data_type() == DataType::S16) |
| { |
| set_format_if_unknown(*output->info(), Format::S16); |
| } |
| else if(input1->info()->data_type() == DataType::F32 || input2->info()->data_type() == DataType::F32) |
| { |
| set_format_if_unknown(*output->info(), Format::U8); |
| } |
| |
| ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input1, input2, output); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input1, 1, DataType::U8, DataType::S16); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input2, 1, DataType::U8, DataType::S16); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8, DataType::S16); |
| ARM_COMPUTE_ERROR_ON_MSG(output->info()->data_type() == DataType::U8 && (input1->info()->data_type() != DataType::U8 || input2->info()->data_type() != DataType::U8), |
| "The output image can only be U8 if both input images are U8"); |
| |
| _input1 = input1; |
| _input2 = input2; |
| _output = output; |
| |
| const DataType input1_data_type = input1->info()->data_type(); |
| const DataType input2_data_type = input2->info()->data_type(); |
| |
| if(input1_data_type == input2_data_type) |
| { |
| if(input1_data_type == DataType::U8) |
| { |
| _func = &abs_diff_U8_U8_U8; |
| } |
| else |
| { |
| _func = &abs_diff_S16_S16_S16; |
| } |
| } |
| else |
| { |
| if(input1_data_type == DataType::U8) |
| { |
| _func = &abs_diff_U8_S16_S16; |
| } |
| else |
| { |
| _func = &abs_diff_S16_U8_S16; |
| } |
| } |
| |
| constexpr unsigned int num_elems_processed_per_iteration = 16; |
| |
| // Configure kernel window |
| Window win = calculate_max_window(*input1->info(), Steps(num_elems_processed_per_iteration)); |
| AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); |
| |
| update_window_and_padding(win, |
| AccessWindowHorizontal(input1->info(), 0, num_elems_processed_per_iteration), |
| AccessWindowHorizontal(input2->info(), 0, num_elems_processed_per_iteration), |
| output_access); |
| |
| ValidRegion valid_region = intersect_valid_regions(input1->info()->valid_region(), |
| input2->info()->valid_region()); |
| |
| output_access.set_valid_region(win, valid_region); |
| |
| INEKernel::configure(win); |
| } |
| |
| void NEAbsoluteDifferenceKernel::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); |
| |
| _func(_input1, _input2, _output, window); |
| } |