e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/* SPDX-FileCopyrightText: 2013 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup depsgraph
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*/
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#pragma once
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namespace blender::deg {
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/* Utility class which takes care of calculating average of time series, such as FPS counters. */
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template<int MaxSamples> class AveragedTimeSampler {
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public:
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AveragedTimeSampler() : num_samples_(0), next_sample_index_(0) {}
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void add_sample(double value)
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{
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samples_[next_sample_index_] = value;
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/* Move to the next index, keeping wrapping at the end of array into account. */
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++next_sample_index_;
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if (next_sample_index_ == MaxSamples) {
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next_sample_index_ = 0;
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}
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/* Update number of stored samples. */
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if (num_samples_ != MaxSamples) {
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++num_samples_;
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}
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}
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double get_averaged() const
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{
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double sum = 0.0;
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for (int i = 0; i < num_samples_; ++i) {
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sum += samples_[i];
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}
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return sum / num_samples_;
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}
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protected:
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double samples_[MaxSamples];
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/* Number of samples which are actually stored in the array. */
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int num_samples_;
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/* Index in the samples_ array under which next sample will be stored. */
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int next_sample_index_;
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};
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} // namespace blender::deg
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