blob: 838ceff8d96924119f9939e7424ee38b2451e153 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2013 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup depsgraph
*/
#pragma once
namespace blender {
namespace deg {
// Utility class which takes care of calculating average of time series, such as
// FPS counters.
template<int MaxSamples> class AveragedTimeSampler {
public:
AveragedTimeSampler() : num_samples_(0), next_sample_index_(0)
{
}
void add_sample(double value)
{
samples_[next_sample_index_] = value;
// Move to the next index, keeping wrapping at the end of array into account.
++next_sample_index_;
if (next_sample_index_ == MaxSamples) {
next_sample_index_ = 0;
}
// Update number of stored samples.
if (num_samples_ != MaxSamples) {
++num_samples_;
}
}
double get_averaged() const
{
double sum = 0.0;
for (int i = 0; i < num_samples_; ++i) {
sum += samples_[i];
}
return sum / num_samples_;
}
protected:
double samples_[MaxSamples];
// Number of samples which are actually stored in the array.
int num_samples_;
// Index in the samples_ array under which next sample will be stored.
int next_sample_index_;
};
} // namespace deg
} // namespace blender
|
