79 lines
2.0 KiB
C++
79 lines
2.0 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 INTERPOLATOR_H_
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#define INTERPOLATOR_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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#include "perfMonitor.h"
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#include <list>
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enum INTERPOLATOR_TYPE
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{
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INTERPOLATOR_TYPE_LINEAR,
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INTERPOLATOR_TYPE_EASEINQUAD,
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INTERPOLATOR_TYPE_EASEOUTQUAD,
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INTERPOLATOR_TYPE_EASEINOUTQUAD,
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INTERPOLATOR_TYPE_EASEINCUBIC,
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INTERPOLATOR_TYPE_EASEOUTCUBIC,
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INTERPOLATOR_TYPE_EASEINOUTCUBIC,
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INTERPOLATOR_TYPE_EASEINQUART,
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INTERPOLATOR_TYPE_EASEINEXPO,
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INTERPOLATOR_TYPE_EASEOUTEXPO,
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};
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struct interpolatorParam {
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float fDestValue;
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INTERPOLATOR_TYPE type;
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double dDuration;
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};
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/******************************************************************
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* Interpolates values with several interpolation methods
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*/
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class interpolator {
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private:
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double _dStartTime;
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double _dDestTime;
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INTERPOLATOR_TYPE _type;
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float _fStartValue;
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float _fDestValue;
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std::list< interpolatorParam > m_listParams;
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float getFormula(INTERPOLATOR_TYPE type, float t, float b, float d, float c);
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public:
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interpolator();
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~interpolator();
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interpolator& set(const float start,
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const float dest,
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INTERPOLATOR_TYPE type, double duration);
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interpolator& add(const float dest,
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INTERPOLATOR_TYPE type, double duration);
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bool update( const double currentTime, float& p );
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void clear();
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};
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#endif /* INTERPOLATOR_H_ */
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