SoIndexedShape.h

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/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library 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 2.1 of the License, or (at your option) any later version.
 *
 *  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.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
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 *  For further information regarding this notice, see: 
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/*
 * Copyright (C) 1990,91   Silicon Graphics, Inc.
 *
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Description:
 |      This file defines the SoIndexedShape node class.
 |
 |   Author(s)          : Paul S. Strauss
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */
 
#ifndef  _SO_INDEXED_SHAPE_
#define  _SO_INDEXED_SHAPE_
 
#include <Inventor/fields/SoMFInt32.h>
#include <Inventor/nodes/SoVertexShape.h>
 
 
 
 
class INVENTOR_API SoIndexedShape : public SoVertexShape {
 
    SO_NODE_ABSTRACT_HEADER(SoIndexedShape);
 
  public:
 
 
    SoMFInt32           coordIndex;             
    SoMFInt32           materialIndex;          
    SoMFInt32           normalIndex;            
    SoMFInt32           textureCoordIndex;      
 
 
  SoINTERNAL public:
    static void         initClass();
 
  protected:
    SoIndexedShape();
 
    virtual void        computeBBox(SoAction *action, SbBox3f &box,
                                    SbVec3f &center);
 
    static bool         areTexCoordsIndexed(SoAction *action);
 
    int                 getNumVerts(int startCoord);
 
    void                setupIndices(int numParts, int numFaces,
                                bool needNormals, bool needTexCoords);
 
    const int32_t *     getNormalIndices()
        { return (normalI ? normalI : consecutiveIndices); }
    const int32_t *     getColorIndices()
        { return (colorI ? colorI : consecutiveIndices); }
    const int32_t *     getTexCoordIndices()
        { return (texCoordI ? texCoordI : consecutiveIndices); }
 
    virtual void        notify(SoNotList *list);
 
    virtual ~SoIndexedShape();
 
  private:
    void        allocateSequential(int howMany);
    int32_t*    allocateSequentialWithHoles();
 
    const int32_t       *texCoordI;
    const int32_t       *colorI;
    const int32_t       *normalI;
    static int32_t      *consecutiveIndices;
    static int  numConsecutiveIndicesAllocated;
 
    unsigned char materialBinding;
    unsigned char normalBinding;
    unsigned char texCoordBinding;
};
 
#endif /* _SO_INDEXED_SHAPE_ */