| /* |
| * Copyright (c) 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. |
| */ |
| |
| #pragma once |
| |
| #include <cstddef> |
| |
| // Utilities for copying tensor tiles and adding/removing padding. |
| namespace padding |
| { |
| |
| /* Copy a tile and apply padding to the output copy. |
| */ |
| template <typename T> |
| void copy_and_pad_tile( |
| const unsigned int tile_rows, |
| const unsigned int tile_cols, |
| const unsigned int n_channels, |
| const T * const inptr, |
| const unsigned int in_row_stride, |
| const unsigned int in_col_stride, |
| T* const outptr, |
| const unsigned int out_row_stride, |
| const unsigned int out_col_stride, |
| const unsigned int pad_top, |
| const unsigned int pad_left, |
| const unsigned int pad_bottom, |
| const unsigned int pad_right, |
| const T pad_value=static_cast<T>(0) |
| ); |
| |
| /** Copy a tile and remove padding elements in the output. |
| */ |
| template <unsigned int TileRows, unsigned int TileCols> |
| class CopyCropped |
| { |
| public: |
| static void execute( |
| size_t size, // Amount of data to copy |
| const void *inptr, |
| size_t in_row_stride, |
| size_t in_col_stride, |
| void *outptr, |
| size_t out_row_stride, |
| size_t out_col_stride, |
| unsigned int pad_top, |
| unsigned int pad_left, |
| unsigned int pad_bottom, |
| unsigned int pad_right |
| ); |
| }; |
| |
| template <typename T> |
| void crop_and_copy_tile( |
| unsigned int tile_rows, |
| unsigned int tile_cols, |
| unsigned int n_channels, |
| const T *inptr, |
| unsigned int in_row_stride, |
| unsigned int in_col_stride, |
| T *outptr, |
| unsigned int out_row_stride, |
| unsigned int out_col_stride, |
| unsigned int crop_top, |
| unsigned int crop_left, |
| unsigned int crop_bottom, |
| unsigned int crop_right |
| ); |
| |
| } |