| /* |
| * Copyright (c) 2017-2018 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/NERemapKernel.h" |
| |
| #include "arm_compute/core/AccessWindowStatic.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/Validate.h" |
| #include "arm_compute/core/Window.h" |
| |
| #include <arm_neon.h> |
| #include <cstddef> |
| #include <cstdint> |
| |
| using namespace arm_compute; |
| |
| namespace arm_compute |
| { |
| class Coordinates; |
| } // namespace arm_compute |
| |
| namespace |
| { |
| inline int32x4_t offset_nearest_interpolation(const float *mapx_ptr, const float *mapy_ptr, const float32x4_t &width, const float32x4_t &height, const int32x4_t &stride) |
| { |
| const float32x4_t lowerxy = vdupq_n_f32(-1.f); |
| |
| float32x4_t x = vld1q_f32(mapx_ptr); |
| float32x4_t y = vld1q_f32(mapy_ptr); |
| |
| // Clamp x coordinates |
| x = vmaxq_f32(lowerxy, vminq_f32(x, width)); |
| y = vmaxq_f32(lowerxy, vminq_f32(y, height)); |
| |
| const int32x4_t x_s32 = vcvtq_s32_f32(x); |
| const int32x4_t y_s32 = vcvtq_s32_f32(y); |
| |
| return vmlaq_s32(x_s32, y_s32, stride); |
| } |
| |
| } // namespace |
| |
| NERemapKernel::NERemapKernel() |
| : _func(nullptr), _input(nullptr), _output(nullptr), _map_x(nullptr), _map_y(nullptr) |
| { |
| } |
| |
| BorderSize NERemapKernel::border_size() const |
| { |
| return BorderSize(1); |
| } |
| |
| void NERemapKernel::configure(const ITensor *input, const ITensor *map_x, const ITensor *map_y, ITensor *output, InterpolationPolicy policy) |
| { |
| 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::U8); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(map_x, 1, DataType::F32); |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(map_y, 1, DataType::F32); |
| |
| _input = input; |
| _output = output; |
| _map_x = map_x; |
| _map_y = map_y; |
| |
| switch(policy) |
| { |
| case InterpolationPolicy::NEAREST_NEIGHBOR: |
| { |
| _func = &NERemapKernel::remap_nearest; |
| break; |
| } |
| case InterpolationPolicy::BILINEAR: |
| { |
| _func = &NERemapKernel::remap_bilinear; |
| break; |
| } |
| default: |
| ARM_COMPUTE_ERROR("Unsupported interpolation mode"); |
| break; |
| } |
| |
| constexpr unsigned int num_elems_processed_per_iteration = 16; |
| |
| // Configure kernel window |
| Window win = calculate_max_window(*output->info(), Steps(num_elems_processed_per_iteration)); |
| |
| const int total_right = ceil_to_multiple(input->info()->dimension(0), num_elems_processed_per_iteration); |
| const int access_right = total_right + (((total_right - input->info()->dimension(0)) == 0) ? border_size().right : 0); |
| |
| AccessWindowStatic input_access(input->info(), -border_size().left, -border_size().top, access_right, input->info()->dimension(1) + border_size().bottom); |
| |
| AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); |
| AccessWindowHorizontal mapx_access(map_x->info(), 0, 0, num_elems_processed_per_iteration); |
| AccessWindowHorizontal mapy_access(map_y->info(), 0, 0, num_elems_processed_per_iteration); |
| |
| update_window_and_padding(win, input_access, mapx_access, mapy_access, output_access); |
| |
| output_access.set_valid_region(win, ValidRegion(Coordinates(), output->info()->tensor_shape())); |
| |
| INEKernel::configure(win); |
| } |
| |
| void NERemapKernel::remap_nearest(const Window &window) |
| { |
| // Don't increment in X and Y direction for the input tensor |
| // A pointer to the start of this plane is needed as base for the precomputed offsets |
| Window win_in(window); |
| win_in.set(Window::DimX, Window::Dimension(0, 0, 0)); |
| win_in.set(Window::DimY, Window::Dimension(0, 0, 0)); |
| |
| Iterator in(_input, win_in); |
| Iterator out(_output, window); |
| Iterator mapx(_map_x, window); |
| Iterator mapy(_map_y, window); |
| |
| const float32x4_t width = vdupq_n_f32(static_cast<float>(_input->info()->dimension(0))); |
| const float32x4_t height = vdupq_n_f32(static_cast<float>(_input->info()->dimension(1))); |
| const int32x4_t in_stride = vdupq_n_s32(static_cast<int32_t>(_input->info()->strides_in_bytes()[1])); |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const auto mapx_ptr = reinterpret_cast<const float *>(mapx.ptr()); |
| const auto mapy_ptr = reinterpret_cast<const float *>(mapy.ptr()); |
| const uint8_t *in_ptr = in.ptr(); |
| |
| const int32x4_t offset0 = offset_nearest_interpolation(mapx_ptr + 0, mapy_ptr + 0, width, height, in_stride); |
| const int32x4_t offset1 = offset_nearest_interpolation(mapx_ptr + 4, mapy_ptr + 4, width, height, in_stride); |
| const int32x4_t offset2 = offset_nearest_interpolation(mapx_ptr + 8, mapy_ptr + 8, width, height, in_stride); |
| const int32x4_t offset3 = offset_nearest_interpolation(mapx_ptr + 12, mapy_ptr + 12, width, height, in_stride); |
| |
| uint8x16_t tmp = vdupq_n_u8(0); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset0, 0)], tmp, 0); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset0, 1)], tmp, 1); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset0, 2)], tmp, 2); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset0, 3)], tmp, 3); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset1, 0)], tmp, 4); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset1, 1)], tmp, 5); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset1, 2)], tmp, 6); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset1, 3)], tmp, 7); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset2, 0)], tmp, 8); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset2, 1)], tmp, 9); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset2, 2)], tmp, 10); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset2, 3)], tmp, 11); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset3, 0)], tmp, 12); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset3, 1)], tmp, 13); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset3, 2)], tmp, 14); |
| tmp = vsetq_lane_u8(in_ptr[vgetq_lane_s32(offset3, 3)], tmp, 15); |
| vst1q_u8(out.ptr(), tmp); |
| }, |
| in, out, mapx, mapy); |
| } |
| |
| void NERemapKernel::remap_bilinear(const Window &window) |
| { |
| // Don't increment in X and Y direction for the input tensor |
| // A pointer to the start of this plane is needed as base for the precomputed offsets |
| Window win_in(window); |
| win_in.set(Window::DimX, Window::Dimension(0, 0, 0)); |
| win_in.set(Window::DimY, Window::Dimension(0, 0, 0)); |
| |
| Iterator in(_input, win_in); |
| Iterator out(_output, window); |
| Iterator mapx(_map_x, window); |
| Iterator mapy(_map_y, window); |
| |
| const size_t width = _input->info()->dimension(0); |
| const size_t height = _input->info()->dimension(1); |
| const size_t in_stride = _input->info()->strides_in_bytes()[1]; |
| |
| execute_window_loop(window, [&](const Coordinates & id) |
| { |
| const auto mapx_ptr = reinterpret_cast<float *>(mapx.ptr()); |
| const auto mapy_ptr = reinterpret_cast<float *>(mapy.ptr()); |
| const uint8_t *in_ptr = in.ptr(); |
| |
| uint8x8_t tmp0 = vdup_n_u8(0); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[0], mapy_ptr[0]), tmp0, 0); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[1], mapy_ptr[1]), tmp0, 1); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[2], mapy_ptr[2]), tmp0, 2); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[3], mapy_ptr[3]), tmp0, 3); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[4], mapy_ptr[4]), tmp0, 4); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[5], mapy_ptr[5]), tmp0, 5); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[6], mapy_ptr[6]), tmp0, 6); |
| tmp0 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[7], mapy_ptr[7]), tmp0, 7); |
| |
| uint8x8_t tmp1 = vdup_n_u8(0); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[8], mapy_ptr[8]), tmp1, 0); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[9], mapy_ptr[9]), tmp1, 1); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[10], mapy_ptr[10]), tmp1, 2); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[11], mapy_ptr[11]), tmp1, 3); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[12], mapy_ptr[12]), tmp1, 4); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[13], mapy_ptr[13]), tmp1, 5); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[14], mapy_ptr[14]), tmp1, 6); |
| tmp1 = vset_lane_u8(pixel_bilinear_c1_clamp(in_ptr, in_stride, width, height, mapx_ptr[15], mapy_ptr[15]), tmp1, 7); |
| |
| vst1q_u8(out.ptr(), vcombine_u8(tmp0, tmp1)); |
| }, |
| in, out, mapx, mapy); |
| } |
| |
| void NERemapKernel::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); |
| } |