From Cedric Pinson, Pulled in osgAnimation from OpenSceneGraph-osgWidget-dev into svn/trunk.

2008-11-22 12:14:19 +00:00
parent fdaa75400b
commit 56a2cc65d0
55 changed files with 6623 additions and 3 deletions
--- a/include/osgAnimation/Sampler
+++ b/include/osgAnimation/Sampler
@@ -0,0 +1,124 @@
+/*  -*-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_SAMPLER_H
+#define OSGANIMATION_SAMPLER_H
+
+#include <vector>
+#include <iostream>
+#include <osg/Referenced>
+#include <osg/ref_ptr>
+#include <osgAnimation/Keyframe>
+#include <osgAnimation/Interpolator>
+#include <osgAnimation/Assert>
+
+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 
+        {
+            OSGANIMATION_ASSERT(_keyframes.valid() && !_keyframes->empty() && "no keyframes");
+            return _keyframes->front().getTime();
+        }
+
+        float getEndTime() const 
+        {
+            OSGANIMATION_ASSERT(_keyframes.valid() && !_keyframes->empty() && "no keyframes");
+            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<DoubleLinearInterpolator> DoubleLinearSampler;
+    typedef TemplateSampler<FloatLinearInterpolator> FloatLinearSampler;
+    typedef TemplateSampler<Vec2LinearInterpolator> Vec2LinearSampler;
+    typedef TemplateSampler<Vec3LinearInterpolator> Vec3LinearSampler;
+    typedef TemplateSampler<Vec4LinearInterpolator> Vec4LinearSampler;
+    typedef TemplateSampler<QuatSphericalLinearInterpolator> QuatSphericalLinearSampler;
+    typedef TemplateSampler<FloatCubicBezierInterpolator> FloatCubicBezierSampler;
+    typedef TemplateSampler<DoubleCubicBezierInterpolator> DoubleCubicBezierSampler;
+    typedef TemplateSampler<Vec2CubicBezierInterpolator> Vec2CubicBezierSampler;
+    typedef TemplateSampler<Vec3CubicBezierInterpolator> Vec3CubicBezierSampler;
+    typedef TemplateSampler<Vec4CubicBezierInterpolator> Vec4CubicBezierSampler;
+  
+};
+
+#endif