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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.
*/
#include <cstring>
#include <cstdint>
#include "padding.hpp"
namespace padding
{
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
)
{
for (unsigned int out_i = 0; out_i < tile_rows; out_i++)
{
for (unsigned int out_j = 0; out_j < tile_cols; out_j++)
{
T* const output = outptr + out_i*out_row_stride + out_j*out_col_stride;
if (out_i < pad_top || tile_rows - pad_bottom <= out_i ||
out_j < pad_left || tile_cols - pad_right <= out_j)
{
for (unsigned int n = 0; n < n_channels; n++)
{
output[n] = pad_value;
}
}
else
{
const auto in_i = out_i - pad_top, in_j = out_j - pad_left;
const T* const input = inptr + in_i*in_row_stride + in_j*in_col_stride;
std::memcpy(output, input, n_channels * sizeof(T));
}
}
}
}
template void copy_and_pad_tile(
unsigned int, unsigned int, unsigned int,
const uint8_t *, unsigned int, unsigned int,
uint8_t *, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int, unsigned int, uint8_t
);
template void copy_and_pad_tile(
unsigned int, unsigned int, unsigned int,
const float *, unsigned int, unsigned int,
float *, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int, unsigned int, float
);
template <unsigned int TileRows, unsigned int TileCols>
void CopyCropped<TileRows, TileCols>::execute(
const size_t size,
const void * const inptr,
const size_t in_row_stride,
const size_t in_col_stride,
void * const outptr,
const size_t out_row_stride,
const size_t out_col_stride,
const unsigned int pad_top,
const unsigned int pad_left,
const unsigned int pad_bottom,
const unsigned int pad_right
)
{
for (unsigned int out_i = 0, in_i = pad_top; in_i < TileRows - pad_bottom; out_i++, in_i++)
{
for (unsigned int out_j = 0, in_j = pad_left; in_j < TileCols - pad_right; out_j++, in_j++)
{
std::memcpy(
static_cast<uint8_t *>(outptr) + out_i*out_row_stride + out_j*out_col_stride,
static_cast<const uint8_t *>(inptr) + in_i*in_row_stride + in_j*in_col_stride,
size
);
}
}
}
template class CopyCropped<2, 2>;
template class CopyCropped<3, 3>;
template class CopyCropped<4, 4>;
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
)
{
for (unsigned int out_i = 0, in_i = crop_top; in_i < tile_rows - crop_bottom; out_i++, in_i++)
{
for (unsigned int out_j = 0, in_j = crop_left; in_j < tile_cols - crop_right; out_j++, in_j++)
{
std::memcpy(
outptr + out_i*out_row_stride + out_j*out_col_stride,
inptr + in_i*in_row_stride + in_j*in_col_stride,
sizeof(T) * n_channels
);
}
}
}
template void crop_and_copy_tile(
unsigned int tile_rows,
unsigned int tile_cols,
unsigned int n_channels,
const float *inptr,
unsigned int in_row_stride,
unsigned int in_col_stride,
float *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
);
} // namespace padding
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