1 /*
2 * Copyright (C) 2010-2018 Arm Limited or its affiliates. All rights reserved.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Licensed under the Apache License, Version 2.0 (the License); you may
7 * not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
14 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 #include "ref_functions.h"
20
arm_avepool_q7_HWC_ref(const q7_t * Im_in,const uint16_t dim_im_in,const uint16_t ch_im_in,const uint16_t dim_kernel,const uint16_t padding,const uint16_t stride,const uint16_t dim_im_out,q7_t * bufferA,q7_t * Im_out)21 void arm_avepool_q7_HWC_ref(const q7_t * Im_in, // input image
22 const uint16_t dim_im_in, // input image dimension
23 const uint16_t ch_im_in, // number of input image channels
24 const uint16_t dim_kernel, // window kernel size
25 const uint16_t padding, // padding sizes
26 const uint16_t stride, // stride
27 const uint16_t dim_im_out, // output image dimension
28 q7_t * bufferA, // a buffer for local storage
29 q7_t * Im_out)
30 {
31 int16_t i_ch_in, i_x, i_y;
32 int16_t k_x, k_y;
33
34 for (i_ch_in = 0; i_ch_in < ch_im_in; i_ch_in++)
35 {
36 for (i_y = 0; i_y < dim_im_out; i_y++)
37 {
38 for (i_x = 0; i_x < dim_im_out; i_x++)
39 {
40 int sum = 0;
41 int count = 0;
42 for (k_y = i_y * stride - padding; k_y < i_y * stride - padding + dim_kernel; k_y++)
43 {
44 for (k_x = i_x * stride - padding; k_x < i_x * stride - padding + dim_kernel; k_x++)
45 {
46 if (k_y >= 0 && k_x >= 0 && k_y < dim_im_in && k_x < dim_im_in)
47 {
48 sum += Im_in[i_ch_in + ch_im_in * (k_x + k_y * dim_im_in)];
49 count++;
50 }
51 }
52 }
53 Im_out[i_ch_in + ch_im_in * (i_x + i_y * dim_im_out)] = sum / count;
54 }
55 }
56 }
57 }
58
arm_maxpool_q7_HWC_ref(const q7_t * Im_in,const uint16_t dim_im_in,const uint16_t ch_im_in,const uint16_t dim_kernel,const uint16_t padding,const uint16_t stride,const uint16_t dim_im_out,q7_t * bufferA,q7_t * Im_out)59 void arm_maxpool_q7_HWC_ref(const q7_t * Im_in, // input image
60 const uint16_t dim_im_in, // input image dimension
61 const uint16_t ch_im_in, // number of input image channels
62 const uint16_t dim_kernel, // window kernel size
63 const uint16_t padding, // padding sizes
64 const uint16_t stride, // stride
65 const uint16_t dim_im_out, // output image dimension
66 q7_t * bufferA, // a buffer for local storage
67 q7_t * Im_out)
68 {
69 int16_t i_ch_in, i_x, i_y;
70 int16_t k_x, k_y;
71
72 for (i_ch_in = 0; i_ch_in < ch_im_in; i_ch_in++)
73 {
74 for (i_y = 0; i_y < dim_im_out; i_y++)
75 {
76 for (i_x = 0; i_x < dim_im_out; i_x++)
77 {
78 int max = -129;
79 for (k_y = i_y * stride - padding; k_y < i_y * stride - padding + dim_kernel; k_y++)
80 {
81 for (k_x = i_x * stride - padding; k_x < i_x * stride - padding + dim_kernel; k_x++)
82 {
83 if (k_y >= 0 && k_x >= 0 && k_y < dim_im_in && k_x < dim_im_in)
84 {
85 if (Im_in[i_ch_in + ch_im_in * (k_x + k_y * dim_im_in)] > max)
86 {
87 max = Im_in[i_ch_in + ch_im_in * (k_x + k_y * dim_im_in)];
88 }
89 }
90 }
91 }
92 Im_out[i_ch_in + ch_im_in * (i_x + i_y * dim_im_out)] = max;
93 }
94 }
95 }
96 }
97