57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/*
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* Copyright 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may 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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* http://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,
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* WITHOUT 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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#ifndef PERFMONITOR_H_
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#define PERFMONITOR_H_
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#include <jni.h>
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#include <errno.h>
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#include <time.h>
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#include "JNIHelper.h"
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const int32_t NUM_SAMPLES = 100;
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/******************************************************************
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* Helper class for a performance monitoring and get current tick time
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*/
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class perfMonitor {
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private:
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float _fCurrentFPS;
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time_t _tvLastSec;
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double _dLastTick;
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int32_t _tickindex;
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double _ticksum;
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double _ticklist[ NUM_SAMPLES ];
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double updateTick(double currentTick);
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public:
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perfMonitor();
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virtual ~perfMonitor();
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bool update(float &fFPS);
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static double getCurrentTime()
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{
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struct timeval Time;
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gettimeofday( &Time, NULL );
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double dTime = Time.tv_sec + Time.tv_usec * 1.0/1000000.0;
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return dTime;
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}
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};
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#endif /* PERFMONITOR_H_ */
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