mms3dmatrixstack.h

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/***************************************************************************
 *   Copyright (C) 2005-2007 Stefan Schwarzer, Jens Schneider,             *
 *                           Matthias Hardt, Guido Madaus                  *
 *                                                                         *
 *   Copyright (C) 2007-2008 BerLinux Solutions GbR                        *
 *                           Stefan Schwarzer & Guido Madaus               *
 *                                                                         *
 *   Copyright (C) 2009-2013 BerLinux Solutions GmbH                       *
 *                                                                         *
 *   Authors:                                                              *
 *      Stefan Schwarzer   <stefan.schwarzer@diskohq.org>,                 *
 *      Matthias Hardt     <matthias.hardt@diskohq.org>,                   *
 *      Jens Schneider     <jens.schneider@diskohq.org>,                   *
 *      Guido Madaus       <guido.madaus@diskohq.org>,                     *
 *      Patrick Helterhoff <patrick.helterhoff@diskohq.org>,               *
 *      René Bählkow       <rene.baehlkow@diskohq.org>                     *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License version 2.1 as published by the Free Software Foundation.     *
 *                                                                         *
 *   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 GNU     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
 **************************************************************************/

#ifndef MMS3DMATRIXSTACK_H_
#define MMS3DMATRIXSTACK_H_

#include "mmstools/mmstypes.h"

class MMS3DMatrixStack {
private:
    //! matrix operations
    typedef enum {
        MOP_SCALE = 0,
        MOP_TRANSLATE,
        MOP_ROTATE
    } MOP;

    //! matrix stack item
    typedef struct {
        MOP     mop;
        float   params[4];
    } MSI;

    //! size of the stack
    #define MS_SIZE 50

    //! stack
    MSI ms[MS_SIZE];

    //! number of items in the stack
    int ms_cnt;

    //! base matrix (matrix before stack operations)
    MMSMatrix base_matrix;

    //! is base matrix set?
    bool base_matrix_set;

    //! result matrix (matrix after stack operations)
    MMSMatrix result_matrix;

    //! is result matrix set?
    bool result_matrix_set;


    bool add(MOP mop, float p0, float p1, float p2, float p3);

public:
    MMS3DMatrixStack();

    void clear();

    void setBaseMatrix(MMSMatrix base_matrix);

    bool getResultMatrix(MMSMatrix result_matrix);

    bool scale(float sx, float sy, float sz);

    bool translate(float tx, float ty, float tz);

    bool rotate(float angle, float x, float y, float z);
};

#endif /* MMS3DMATRIXSTACK_H_ */

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