118 lines
4.8 KiB
C++
118 lines
4.8 KiB
C++
//----------------------------------------------------------------------------//
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// //
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// ozz-animation is hosted at http://github.com/guillaumeblanc/ozz-animation //
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// and distributed under the MIT License (MIT). //
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// //
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// Copyright (c) Guillaume Blanc //
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// //
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// Permission is hereby granted, free of charge, to any person obtaining a //
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// copy of this software and associated documentation files (the "Software"), //
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// to deal in the Software without restriction, including without limitation //
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// the rights to use, copy, modify, merge, publish, distribute, sublicense, //
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// and/or sell copies of the Software, and to permit persons to whom the //
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// Software is furnished to do so, subject to the following conditions: //
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// //
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// The above copyright notice and this permission notice shall be included in //
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// all copies or substantial portions of the Software. //
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// //
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR //
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, //
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL //
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER //
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING //
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER //
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// DEALINGS IN THE SOFTWARE. //
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// //
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//----------------------------------------------------------------------------//
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#ifndef OZZ_SAMPLES_FRAMEWORK_PROFILE_H_
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#define OZZ_SAMPLES_FRAMEWORK_PROFILE_H_
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namespace ozz {
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namespace sample {
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// Records up to a maximum number of float values. Once the maximum number is
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// reached, it keeps the most recent ones and reject the oldest.
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class Record {
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public:
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// Constructs and sets the maximum number of record-able values.
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// The minimum record-able number of values is 1.
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explicit Record(int _max_records);
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// Deallocate records.
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~Record();
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// Adds _value to the records, while rejecting the oldest one if the maximum
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// number is reached.
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void Push(float _value);
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// Returns the cursor to the newest value in the circular buffer.
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// cursor() == record_begin() == record_end() if record is empty.
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// Recorded values can be accessed sequentially from the newest to the oldest
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// from [cursor():record_end()[ and then [record_begin():cursor()[
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const float* cursor() const { return cursor_; }
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// Returns the beginning of the recorded values.
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const float* record_begin() const { return records_begin_; }
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// Returns the end of the recorded values.
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const float* record_end() const { return records_end_; }
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// Statistics returned by GetStatistics function.
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struct Statistics {
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// Minimum value of the recorded range.
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float min;
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// Maximum value of the recorded range.
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float max;
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// Mean value of the recorded range.
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float mean;
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// Latest value of the recorded range.
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float latest;
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};
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// Builds statistics of the current record state.
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Statistics GetStatistics();
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private:
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// Disables assignment and copy.
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Record(const Record& _record);
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void operator=(const Record& _record);
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// The maximum number of recorded entries.
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int max_records_;
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// Circular buffer of recorded valued, limited to max_records_ entries.
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// records_begin_ is set to records_end_ when record is empty.
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// records_begin_ then moves down to allocation begin. Therefore
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// deallocation should be done using records_end_.
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float* const records_end_;
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float* records_begin_;
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// Cursor in the circular buffer. Points to the latest pushed value.
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float* cursor_;
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};
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// Measures the time spent between the constructor and the destructor (as a
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// RAII object) and pushes the result to a Record.
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class Profiler {
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public:
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// Starts measurement.
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explicit Profiler(Record* _record);
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// Ends measurement and pushes the result to the record.
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~Profiler();
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private:
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// Disables assignment and copy.
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Profiler(const Profiler& _profiler);
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void operator=(const Profiler& _profiler);
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// The time at which profiling began.
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float begin_;
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// Profiling result is pushed in the record_ object.
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Record* record_;
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};
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} // namespace sample
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} // namespace ozz
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#endif // OZZ_SAMPLES_FRAMEWORK_PROFILE_H_
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