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/* -*-c++-*-
* Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*
* Authors:
* Cedric Pinson <cedric.pinson@plopbyte.net>
* Michael Platings <mplatings@pixelpower.com>
*/
#ifndef OSGANIMATION_SAMPLER_H
#define OSGANIMATION_SAMPLER_H
#include <vector>
#include <iostream>
#include <osg/Referenced>
#include <osg/ref_ptr>
#include <osgAnimation/Keyframe>
#include <osgAnimation/Interpolator>
namespace osgAnimation
{
class Sampler : public osg::Referenced
{
public:
virtual KeyframeContainer* getKeyframeContainer() = 0;
virtual const KeyframeContainer* getKeyframeContainer() const = 0;
protected:
};
// Sampler generic
template <class F>
class TemplateSampler : public Sampler
{
public:
typedef typename F::KeyframeType KeyframeType;
typedef TemplateKeyframeContainer<KeyframeType> KeyframeContainerType;
typedef typename F::UsingType UsingType;
typedef F FunctorType;
TemplateSampler() {}
~TemplateSampler() {}
void getValueAt(float time, UsingType& result) const { _functor.getValue(*_keyframes, time, result);}
void setKeyframeContainer(KeyframeContainerType* kf) { _keyframes = kf;}
virtual KeyframeContainer* getKeyframeContainer() { return _keyframes.get(); }
virtual const KeyframeContainer* getKeyframeContainer() const { return _keyframes.get();}
KeyframeContainerType* getKeyframeContainerTyped() { return _keyframes.get();}
const KeyframeContainerType* getKeyframeContainerTyped() const { return _keyframes.get();}
KeyframeContainerType* getOrCreateKeyframeContainer()
{
if (_keyframes != 0)
return _keyframes.get();
_keyframes = new KeyframeContainerType;
return _keyframes.get();
}
float getStartTime() const
{
if (!_keyframes)
return 0.0f;
return _keyframes->front().getTime();
}
float getEndTime() const
{
if (!_keyframes)
return 0.0f;
return _keyframes->back().getTime();
}
protected:
FunctorType _functor;
osg::ref_ptr<KeyframeContainerType> _keyframes;
};
template<typename VALUESAMPLERTYPE, typename TIMESAMPLERTYPE>
class TemplateCompositeSampler : public osg::Referenced
{
VALUESAMPLERTYPE& _value;
TIMESAMPLERTYPE& _time;
public:
typedef typename VALUESAMPLERTYPE::FunctorType::UsingType UsingType;
typedef typename VALUESAMPLERTYPE::FunctorType::KeyframeType KeyframeType;
TemplateCompositeSampler(VALUESAMPLERTYPE& value, TIMESAMPLERTYPE& time) : _value(value), _time(time)
{
}
void getValueAt(float time, typename VALUESAMPLERTYPE::FunctorType::UsingType& result)
{
float newtime;
_time.getValueAt(time, newtime);
_value.getValueAt(newtime, result);
}
float getStartTime() const {return _time.getStartTime(); }
float getEndTime() const {return _time.getEndTime();}
};
typedef TemplateSampler<DoubleStepInterpolator> DoubleStepSampler;
typedef TemplateSampler<FloatStepInterpolator> FloatStepSampler;
typedef TemplateSampler<Vec2StepInterpolator> Vec2StepSampler;
typedef TemplateSampler<Vec3StepInterpolator> Vec3StepSampler;
typedef TemplateSampler<Vec4StepInterpolator> Vec4StepSampler;
typedef TemplateSampler<QuatStepInterpolator> QuatStepSampler;
typedef TemplateSampler<DoubleLinearInterpolator> DoubleLinearSampler;
typedef TemplateSampler<FloatLinearInterpolator> FloatLinearSampler;
typedef TemplateSampler<Vec2LinearInterpolator> Vec2LinearSampler;
typedef TemplateSampler<Vec3LinearInterpolator> Vec3LinearSampler;
typedef TemplateSampler<Vec4LinearInterpolator> Vec4LinearSampler;
typedef TemplateSampler<QuatSphericalLinearInterpolator> QuatSphericalLinearSampler;
typedef TemplateSampler<MatrixLinearInterpolator> MatrixLinearSampler;
typedef TemplateSampler<FloatCubicBezierInterpolator> FloatCubicBezierSampler;
typedef TemplateSampler<DoubleCubicBezierInterpolator> DoubleCubicBezierSampler;
typedef TemplateSampler<Vec2CubicBezierInterpolator> Vec2CubicBezierSampler;
typedef TemplateSampler<Vec3CubicBezierInterpolator> Vec3CubicBezierSampler;
typedef TemplateSampler<Vec4CubicBezierInterpolator> Vec4CubicBezierSampler;
}
#endif
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