88 lines
2.1 KiB
C++
88 lines
2.1 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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#pragma once
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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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namespace ndk_helper
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{
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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 InterpolatorParams
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{
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float dest_value_;
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INTERPOLATOR_TYPE type_;
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double duration_;
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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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{
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private:
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double start_time_;
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double dest_time_;
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INTERPOLATOR_TYPE type_;
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float start_value_;
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float dest_value_;
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std::list<InterpolatorParams> list_params_;
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float GetFormula( const INTERPOLATOR_TYPE type,
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const float t,
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const float b,
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const float d,
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const 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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const INTERPOLATOR_TYPE type,
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double duration );
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Interpolator& Add( const float dest,
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const INTERPOLATOR_TYPE type,
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const 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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} //namespace ndkHelper
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