glc_wiredata.h

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/****************************************************************************

 This file is part of the GLC-lib library.
 Copyright (C) 2005-2008 Laurent Ribon (laumaya@users.sourceforge.net)
 http://glc-lib.sourceforge.net

 GLC-lib is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation; either version 3 of the License, or
 (at your option) any later version.

 GLC-lib 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 GLC-lib; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 *****************************************************************************/

#ifndef GLC_WIREDATA_H_
#define GLC_WIREDATA_H_

#include <QColor>
#include <QGLBuffer>

#include "../glc_global.h"
#include "../glc_boundingbox.h"
#include "../shading/glc_renderproperties.h"

#include "../glc_config.h"


class GLC_LIB_EXPORT GLC_WireData
{
        friend GLC_LIB_EXPORT QDataStream &operator<<(QDataStream &, const GLC_WireData &);
        friend GLC_LIB_EXPORT QDataStream &operator>>(QDataStream &, GLC_WireData &);

        enum VboType
        {
                GLC_Vertex= 30,
                GLC_Color,
                GLC_Index
        };



public:
        GLC_WireData();

        GLC_WireData(const GLC_WireData&);

        GLC_WireData& operator=(const GLC_WireData&);

        virtual ~GLC_WireData();



public:
        static quint32 chunckID();

        GLfloatVector positionVector() const;

        GLfloatVector colorVector() const;

        QVector<GLuint> indexVector() const;

        inline bool isEmpty() const
        {return ((m_PositionSize == 0) && m_Positions.isEmpty());}

        GLC_BoundingBox& boundingBox();

        inline int verticeGroupCount() const
        {return m_VerticeGroupCount;}

        inline GLuint verticeGroupOffset(int index) const
        {return m_VerticeGroupOffseti.at(index);}

        inline GLsizei verticeGroupSize(int index) const
        {return m_VerticeGrouprSizes.at(index);}

        inline bool useIndexdColors() const
        {return (m_ColorSize > 0) || (m_Colors.size() > 0);}



public:
        GLC_uint addVerticeGroup(const GLfloatVector&);

        inline void addColors(const GLfloatVector& colors)
        {m_Colors+= colors;}

        void clear();

        void copyVboToClientSide();

        void releaseVboClientSide(bool update= false);

        void setVboUsage(bool usage);




public:
        void finishVbo();

        void useVBO(GLC_WireData::VboType type, bool usage);


        void glDraw(const GLC_RenderProperties&, GLenum mode);

private:

        void fillVBOs();

        void buidIndex();

        void activateVboAndIbo();

        void finishOffset();

// Private members
private:
        QGLBuffer m_VerticeBuffer;

        GLC_uint m_NextPrimitiveLocalId;

        GLfloatVector m_Positions;

        QGLBuffer m_ColorBuffer;

        GLfloatVector m_Colors;

        QGLBuffer m_IndexBuffer;

        QVector<GLuint> m_IndexVector;

        int m_PositionSize;

        int m_ColorSize;

        GLC_BoundingBox* m_pBoundingBox;

        IndexSizes m_VerticeGrouprSizes;

        OffsetVectori m_VerticeGroupOffseti;

        OffsetVector m_VerticeGroupOffset;

        QList<GLC_uint> m_VerticeGroupId;

        int m_VerticeGroupCount;

        bool m_UseVbo;

        static quint32 m_ChunkId;
};

GLC_LIB_EXPORT QDataStream &operator<<(QDataStream &, const GLC_WireData &);
GLC_LIB_EXPORT QDataStream &operator>>(QDataStream &, GLC_WireData &);

#endif /* GLC_WIREDATA_H_ */