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/*
* Copyright (c) 2023 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 <premultiply.hpp>
#define CHANNEL_MULTIPLIER 6
#define BLOCK_SIZE 4
void do_premultiply_float_6(const float *in_ptr,
const unsigned int ld_row,
const unsigned int ld_col,
float *out_ptr,
const unsigned int out_ld_row,
const unsigned int out_ld_col,
const unsigned int tile_rows,
const unsigned int tile_cols,
const unsigned input_channels)
{
for(unsigned int i = 0; i < tile_rows; i++)
{
const float *ip2 = in_ptr + i * ld_row;
float *op2 = out_ptr + i * out_ld_row;
for(unsigned int j = 0; j < tile_cols; j++)
{
const float *ip = ip2;
float *op = op2;
unsigned int num_blocks = input_channels / BLOCK_SIZE;
for(unsigned int c = 0; c < num_blocks; c++)
{
float vals[BLOCK_SIZE];
for(unsigned int v = 0; v < BLOCK_SIZE; v++)
{
vals[v] = ip[v];
}
ip += BLOCK_SIZE;
for(unsigned int v = 0; v < BLOCK_SIZE; v++)
{
for(unsigned int r = 0; r < CHANNEL_MULTIPLIER; r++)
{
op[r] = vals[v];
}
op += CHANNEL_MULTIPLIER;
}
}
unsigned int rem = input_channels - num_blocks * BLOCK_SIZE;
for(unsigned int c = 0; c < rem; c++)
{
float val = ip[c];
for(unsigned int r = 0; r < CHANNEL_MULTIPLIER; r++)
{
op[r] = val;
}
op += CHANNEL_MULTIPLIER;
}
ip2 += ld_col;
op2 += out_ld_col;
}
}
}
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