/*
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* Copyright (C) 2010-2018 Arm Limited or its affiliates. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ref_functions.h"
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void arm_avepool_q7_HWC_ref(const q7_t * Im_in, // input image
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const uint16_t dim_im_in, // input image dimension
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const uint16_t ch_im_in, // number of input image channels
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const uint16_t dim_kernel, // window kernel size
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const uint16_t padding, // padding sizes
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const uint16_t stride, // stride
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const uint16_t dim_im_out, // output image dimension
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q7_t * bufferA, // a buffer for local storage
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q7_t * Im_out)
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{
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int16_t i_ch_in, i_x, i_y;
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int16_t k_x, k_y;
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for (i_ch_in = 0; i_ch_in < ch_im_in; i_ch_in++)
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{
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for (i_y = 0; i_y < dim_im_out; i_y++)
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{
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for (i_x = 0; i_x < dim_im_out; i_x++)
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{
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int sum = 0;
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int count = 0;
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for (k_y = i_y * stride - padding; k_y < i_y * stride - padding + dim_kernel; k_y++)
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{
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for (k_x = i_x * stride - padding; k_x < i_x * stride - padding + dim_kernel; k_x++)
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{
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if (k_y >= 0 && k_x >= 0 && k_y < dim_im_in && k_x < dim_im_in)
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{
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sum += Im_in[i_ch_in + ch_im_in * (k_x + k_y * dim_im_in)];
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count++;
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}
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}
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}
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Im_out[i_ch_in + ch_im_in * (i_x + i_y * dim_im_out)] = sum / count;
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}
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}
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}
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}
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void arm_maxpool_q7_HWC_ref(const q7_t * Im_in, // input image
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const uint16_t dim_im_in, // input image dimension
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const uint16_t ch_im_in, // number of input image channels
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const uint16_t dim_kernel, // window kernel size
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const uint16_t padding, // padding sizes
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const uint16_t stride, // stride
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const uint16_t dim_im_out, // output image dimension
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q7_t * bufferA, // a buffer for local storage
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q7_t * Im_out)
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{
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int16_t i_ch_in, i_x, i_y;
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int16_t k_x, k_y;
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for (i_ch_in = 0; i_ch_in < ch_im_in; i_ch_in++)
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{
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for (i_y = 0; i_y < dim_im_out; i_y++)
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{
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for (i_x = 0; i_x < dim_im_out; i_x++)
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{
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int max = -129;
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for (k_y = i_y * stride - padding; k_y < i_y * stride - padding + dim_kernel; k_y++)
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{
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for (k_x = i_x * stride - padding; k_x < i_x * stride - padding + dim_kernel; k_x++)
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{
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if (k_y >= 0 && k_x >= 0 && k_y < dim_im_in && k_x < dim_im_in)
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{
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if (Im_in[i_ch_in + ch_im_in * (k_x + k_y * dim_im_in)] > max)
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{
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max = Im_in[i_ch_in + ch_im_in * (k_x + k_y * dim_im_in)];
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}
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}
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}
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}
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Im_out[i_ch_in + ch_im_in * (i_x + i_y * dim_im_out)] = max;
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}
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}
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}
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}
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