| /* |
| * Copyright (c) 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 "ReorgLayer.h" |
| |
| #include "arm_compute/core/Types.h" |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace validation |
| { |
| namespace reference |
| { |
| namespace |
| { |
| TensorShape compute_reorg_shape(const TensorShape &src_shape, int32_t stride) |
| { |
| ARM_COMPUTE_ERROR_ON(stride <= 0); |
| |
| TensorShape dst_shape = src_shape; |
| dst_shape.set(0, src_shape.x() / stride); |
| dst_shape.set(1, src_shape.y() / stride); |
| dst_shape.set(2, src_shape.z() * stride * stride); |
| |
| return dst_shape; |
| } |
| } // namespace |
| |
| template <typename T> |
| SimpleTensor<T> reorg_layer(const SimpleTensor<T> &src, int32_t stride) |
| { |
| // Calculate output shape |
| const TensorShape dst_shape = compute_reorg_shape(src.shape(), stride); |
| |
| // Create destination tensor |
| SimpleTensor<T> dst{ dst_shape, src.data_type() }; |
| |
| const unsigned int W = dst.shape().x(); |
| const unsigned int H = dst.shape().y(); |
| const unsigned int C = dst.shape().z(); |
| const unsigned int out_c = C / (stride * stride); |
| const unsigned int outer_dims = dst.shape().total_size() / (W * H * C); |
| |
| // Calculate layer reorg in NCHW |
| Coordinates map_coords; |
| for(unsigned int b = 0; b < outer_dims; ++b) |
| { |
| map_coords.set(3, b); |
| for(unsigned int c = 0; c < C; ++c) |
| { |
| map_coords.set(2, c % out_c); |
| const unsigned int offset = c / out_c; |
| for(unsigned int h = 0; h < H; ++h) |
| { |
| map_coords.set(1, h * stride + offset / stride); |
| for(unsigned int w = 0; w < W; ++w) |
| { |
| const unsigned int dst_idx = w + W * (h + H * (c + C * b)); |
| map_coords.set(0, w * stride + offset % stride); |
| dst[dst_idx] = *reinterpret_cast<const T *>(src(map_coords)); |
| } |
| } |
| } |
| } |
| |
| return dst; |
| } |
| |
| template SimpleTensor<uint8_t> reorg_layer(const SimpleTensor<uint8_t> &src, int32_t stride); |
| template SimpleTensor<uint16_t> reorg_layer(const SimpleTensor<uint16_t> &src, int32_t stride); |
| template SimpleTensor<uint32_t> reorg_layer(const SimpleTensor<uint32_t> &src, int32_t stride); |
| } // namespace reference |
| } // namespace validation |
| } // namespace test |
| } // namespace arm_compute |