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/*
* 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(
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 pad_top,
unsigned int pad_left,
unsigned int pad_bottom,
unsigned int pad_right,
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
);
}
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