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MT_CmMatrix4x4.h

/**
 * $Id: MT_CmMatrix4x4.h,v 1.5 2002/12/26 18:25:15 mein Exp $
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */

#ifndef INCLUDED_MT_CmMatrix4x4
#define INCLUDED_MT_CmMatrix4x4

/**
 * A 4x4 matrix. This is an OpenGl style matrix (column major) meaning
 * that the vector {m[0][0],m[0][1],m[0][2],m[0][3]} is the first column of
 * the matrix , the same as what you get if you transform {1,0,0,0}.
 * This makes it easy to transform stuff to OpenGl. Please note that the
 * the other MoTo matrices are row major.
 *
 * This class should be deprecated in favour of the more consistent
 * MT_Matrix4x4. Please do not start using this class.
 */

#include "MT_Scalar.h"

class MT_Point3;
class MT_Vector3;

class MT_CmMatrix4x4
{

public :

      MT_CmMatrix4x4(
            const float value[4][4]
      );

      MT_CmMatrix4x4(
      );


      MT_CmMatrix4x4(
            const double value[16]
      );

      MT_CmMatrix4x4(
            const MT_CmMatrix4x4 & other
      );

      MT_CmMatrix4x4(
            const MT_Point3& orig,
            const MT_Vector3& dir,
            const MT_Vector3 up
      );

            void
      Identity(
      );

            void
      SetMatrix(
            const MT_CmMatrix4x4 & other
      );

            double*
      getPointer(
      );

      const
            double*
      getPointer(
      ) const;

            void
      setElem(
            int pos,
            double newvalue
      );

            MT_Vector3
      GetRight(
      ) const;

            MT_Vector3
      GetUp(
      ) const;

            MT_Vector3
      GetDir(
      ) const;

            MT_Point3
      GetPos(
      ) const;

            void
      SetPos(
            const MT_Vector3 & v
      );

            double&
      operator (
      ) (int row,int col)     { return m_V[col][row]; }

      static
          MT_CmMatrix4x4
    Perspective(
            MT_Scalar inLeft,
            MT_Scalar inRight,
            MT_Scalar inBottom,
            MT_Scalar inTop,
            MT_Scalar inNear,
            MT_Scalar inFar
      );

protected:
      union
      {
            double m_V[4][4];
            double m_Vflat[16];
      };
};

#endif //MT_CmMatrix4x4


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