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/* -*-c++-*-
* Copyright (C) 2008 Cedric Pinson <mornifle@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.
*/
#ifndef OSGANIMATION_KEYFRAME_H
#define OSGANIMATION_KEYFRAME_H
#include <string>
#include <osg/Referenced>
#include <osg/MixinVector>
#include <osgAnimation/Vec3Packed>
#include <osgAnimation/CubicBezier>
#include <osg/Quat>
#include <osg/Vec4>
#include <osg/Vec3>
#include <osg/Vec2>
#include <osg/Vec3us>
#include <osg/Matrixf>
namespace osgAnimation
{
class Keyframe
{
public:
double getTime() const { return _time; }
void setTime(double time) { _time = time; }
protected:
double _time;
};
template <class T>
class TemplateKeyframe : public Keyframe
{
protected:
T _value;
public:
typedef T value_type;
TemplateKeyframe () {}
~TemplateKeyframe () {}
TemplateKeyframe (double time, const T& value)
{
_time = time;
_value = value;
}
void setValue(const T& value) { _value = value;}
const T& getValue() const { return _value;}
};
class KeyframeContainer : public osg::Referenced
{
public:
KeyframeContainer() {}
virtual unsigned int size() const = 0;
virtual unsigned int linearInterpolationDeduplicate() = 0;
protected:
~KeyframeContainer() {}
std::string _name;
};
template <class T>
class TemplateKeyframeContainer : public osg::MixinVector<TemplateKeyframe<T> >, public KeyframeContainer
{
public:
// const char* getKeyframeType() { return #T ;}
TemplateKeyframeContainer() {}
typedef TemplateKeyframe<T> KeyType;
typedef typename osg::MixinVector< TemplateKeyframe<T> > VectorType;
virtual unsigned int size() const { return (unsigned int)osg::MixinVector<TemplateKeyframe<T> >::size(); }
virtual unsigned int linearInterpolationDeduplicate() {
if(size() <= 1) {
return 0;
}
typename VectorType::iterator keyframe = VectorType::begin(),
previous = VectorType::begin();
// 1. find number of consecutives identical keyframes
std::vector<unsigned int> intervalSizes;
unsigned int intervalSize = 1;
for(++ keyframe ; keyframe != VectorType::end() ; ++ keyframe, ++ previous, ++ intervalSize) {
if(!(previous->getValue() == keyframe->getValue())) {
intervalSizes.push_back(intervalSize);
intervalSize = 0;
}
}
intervalSizes.push_back(intervalSize);
// 2. build deduplicated list of keyframes
unsigned int cumul = 0;
VectorType deduplicated;
for(std::vector<unsigned int>::iterator iterator = intervalSizes.begin() ; iterator != intervalSizes.end() ; ++ iterator) {
deduplicated.push_back((*this)[cumul]);
if(*iterator > 1) {
deduplicated.push_back((*this)[cumul + (*iterator) - 1]);
}
cumul += *iterator;
}
unsigned int count = size() - deduplicated.size();
this->swap(deduplicated);
return count;
}
};
template <>
class TemplateKeyframeContainer<Vec3Packed> : public osg::MixinVector<TemplateKeyframe<Vec3Packed> >, public KeyframeContainer
{
public:
typedef TemplateKeyframe<Vec3Packed> KeyType;
TemplateKeyframeContainer() {}
const char* getKeyframeType() { return "Vec3Packed" ;}
void init(const osg::Vec3f& min, const osg::Vec3f& scale) { _min = min; _scale = scale; }
osg::Vec3f _min;
osg::Vec3f _scale;
};
typedef TemplateKeyframe<float> FloatKeyframe;
typedef TemplateKeyframeContainer<float> FloatKeyframeContainer;
typedef TemplateKeyframe<double> DoubleKeyframe;
typedef TemplateKeyframeContainer<double> DoubleKeyframeContainer;
typedef TemplateKeyframe<osg::Vec2> Vec2Keyframe;
typedef TemplateKeyframeContainer<osg::Vec2> Vec2KeyframeContainer;
typedef TemplateKeyframe<osg::Vec3> Vec3Keyframe;
typedef TemplateKeyframeContainer<osg::Vec3> Vec3KeyframeContainer;
typedef TemplateKeyframe<osg::Vec3us> Vec3usKeyframe;
typedef TemplateKeyframeContainer<osg::Vec3us> Vec3usKeyframeContainer;
typedef TemplateKeyframe<osg::Vec4> Vec4Keyframe;
typedef TemplateKeyframeContainer<osg::Vec4> Vec4KeyframeContainer;
typedef TemplateKeyframe<osg::Quat> QuatKeyframe;
typedef TemplateKeyframeContainer<osg::Quat> QuatKeyframeContainer;
typedef TemplateKeyframe<osg::Vec3us> Vec3usKeyframe;
typedef TemplateKeyframeContainer<osg::Vec3us> Vec3usKeyframeContainer;
typedef TemplateKeyframe<osg::Matrixf> MatrixKeyframe;
typedef TemplateKeyframeContainer<osg::Matrixf> MatrixKeyframeContainer;
typedef TemplateKeyframe<Vec3Packed> Vec3PackedKeyframe;
typedef TemplateKeyframeContainer<Vec3Packed> Vec3PackedKeyframeContainer;
typedef TemplateKeyframe<FloatCubicBezier> FloatCubicBezierKeyframe;
typedef TemplateKeyframeContainer<FloatCubicBezier> FloatCubicBezierKeyframeContainer;
typedef TemplateKeyframe<DoubleCubicBezier> DoubleCubicBezierKeyframe;
typedef TemplateKeyframeContainer<DoubleCubicBezier> DoubleCubicBezierKeyframeContainer;
typedef TemplateKeyframe<Vec2CubicBezier> Vec2CubicBezierKeyframe;
typedef TemplateKeyframeContainer<Vec2CubicBezier> Vec2CubicBezierKeyframeContainer;
typedef TemplateKeyframe<Vec3CubicBezier> Vec3CubicBezierKeyframe;
typedef TemplateKeyframeContainer<Vec3CubicBezier> Vec3CubicBezierKeyframeContainer;
typedef TemplateKeyframe<Vec4CubicBezier> Vec4CubicBezierKeyframe;
typedef TemplateKeyframeContainer<Vec4CubicBezier> Vec4CubicBezierKeyframeContainer;
}
#endif
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