126 lines
4.4 KiB
C++
126 lines
4.4 KiB
C++
//C++ header - Open Scene Graph Simulation - Copyright (C) 1998-2002 Robert Osfield
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// Distributed under the terms of the GNU General Public License (GPL)
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// as published by the Free Software Foundation.
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//
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// All software using osgSim must be GPL'd or excempted via the
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// purchase of the Open Scene Graph Professional License (OSGPL)
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// for further information contact robert@openscenegraph.com.
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#ifndef OSGSIM_LIGHTPOINTDRAWABLE
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#define OSGSIM_LIGHTPOINTDRAWABLE 1
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#include <osgSim/Export>
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#include <osg/Drawable>
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#include <osg/Vec3>
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#include <osg/Vec4>
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#include <osg/Depth>
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#include <osg/BlendFunc>
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#include <osg/ColorMask>
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#include <osg/Point>
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#include <osg/Endian>
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#include <vector>
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namespace osgSim {
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class OSGSIM_EXPORT LightPointDrawable : public osg::Drawable
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{
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public :
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LightPointDrawable();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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LightPointDrawable(const LightPointDrawable&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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virtual osg::Object* cloneType() const { return new LightPointDrawable(); }
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virtual osg::Object* clone(const osg::CopyOp&) const { return new LightPointDrawable(); }
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virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast<const LightPointDrawable*>(obj)!=NULL; }
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virtual const char* className() const { return "LightPointDrawable"; }
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//typedef std::pair<unsigned long,osg::Vec3> ColorPosition;
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struct ColorPosition
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{
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unsigned long first;
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osg::Vec3 second;
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ColorPosition() {}
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ColorPosition(unsigned long f,const osg::Vec3& s):first(f),second(s) {}
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};
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void reset();
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inline unsigned long asRGBA(const osg::Vec4& color) const
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{
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return _endian==osg::BigEndian?color.asABGR():color.asRGBA();
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}
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inline void addOpaqueLightPoint(unsigned int pointSize,const osg::Vec3& position,const osg::Vec4& color)
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{
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if (pointSize>=_sizedOpaqueLightPointList.size()) _sizedOpaqueLightPointList.resize(pointSize+1);
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_sizedOpaqueLightPointList[pointSize].push_back(ColorPosition(asRGBA(color),position));
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}
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inline void addAdditiveLightPoint(unsigned int pointSize,const osg::Vec3& position,const osg::Vec4& color)
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{
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if (pointSize>=_sizedAdditiveLightPointList.size()) _sizedAdditiveLightPointList.resize(pointSize+1);
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_sizedAdditiveLightPointList[pointSize].push_back(ColorPosition(asRGBA(color),position));
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}
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inline void addBlendedLightPoint(unsigned int pointSize,const osg::Vec3& position,const osg::Vec4& color)
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{
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if (pointSize>=_sizedBlendedLightPointList.size()) _sizedBlendedLightPointList.resize(pointSize+1);
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_sizedBlendedLightPointList[pointSize].push_back(ColorPosition(asRGBA(color),position));
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}
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/** draw LightPoints. */
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virtual void drawImplementation(osg::State& state) const;
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void setReferenceTime(double time)
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{
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_referenceTime = time;
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_referenceTimeInterval = 0.0;
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}
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void updateReferenceTime(double time)
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{
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_referenceTimeInterval = osg::clampAbove(time-_referenceTime,0.0);
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_referenceTime = time;
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}
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double getReferenceTime() const { return _referenceTime; }
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double getReferenceTimeInterval() const { return _referenceTimeInterval; }
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protected:
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virtual bool computeBound() const;
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virtual ~LightPointDrawable() {}
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osg::Endian _endian;
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double _referenceTime;
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double _referenceTimeInterval;
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typedef std::vector<ColorPosition> LightPointList;
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typedef std::vector<LightPointList> SizedLightPointList;
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SizedLightPointList _sizedOpaqueLightPointList;
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SizedLightPointList _sizedAdditiveLightPointList;
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SizedLightPointList _sizedBlendedLightPointList;
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osg::ref_ptr<osg::Depth> _depthOff;
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osg::ref_ptr<osg::Depth> _depthOn;
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osg::ref_ptr<osg::BlendFunc> _blendOne;
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osg::ref_ptr<osg::BlendFunc> _blendOneMinusSrcAlpha;
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osg::ref_ptr<osg::ColorMask> _colorMaskOff;
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};
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}
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#endif
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