htUtils.h

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#pragma once
#ifndef __HEAD_TRACKING_UTILS_H
#define __HEAD_TRACKING_UTILS_H

// TODO Left/right handed coordinate systems

#include <osg/Vec3>
#include <osg/Vec4>
#include <osg/Matrix>
#include "Vec2i"

namespace ht
{

    class Screen
    {
    private:
        osg::Matrix     scr_matrix;
        osg::Matrix     scr_matrix_inv;

        bool valid;
    public:
        Screen();
        
        void SetScreen(osg::Vec3 corner, osg::Vec3 width, osg::Vec3 height);

//      bool GetScreen(osg::Vec3 &corner, osg::Vec3 &width, osg::Vec3 &height) const;

        inline const osg::Matrix& GetMatrix() const
        {   return scr_matrix;          }

        inline const osg::Matrix& GetMatrixInv() const
        {   return scr_matrix_inv;      }

        inline bool IsValid() const
        {   return valid;       }
    };

}

#endif  // __HEAD_TRACKING_UTILS_H