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SoIndexedShape.h

/**************************************************************************\
 *
 *  This file is part of the Coin 3D visualization library.
 *  Copyright (C) 1998-2002 by Systems in Motion. 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
 *  version 2.1 as published by the Free Software Foundation. See the
 *  file LICENSE.LGPL at the root directory of the distribution for
 *  more details.
 *
 *  If you want to use Coin for applications not compatible with the
 *  LGPL, please contact SIM to acquire a Professional Edition license.
 *
 *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
 *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
 *
\**************************************************************************/

#ifndef COIN_SOINDEXEDSHAPE_H
#define COIN_SOINDEXEDSHAPE_H

#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoVertexShape.h>
#include <Inventor/fields/SoMFInt32.h>

class SoTextureCoordinateElement;
class SoCoordinateElement;


class COIN_DLL_API SoIndexedShape : public SoVertexShape {
  typedef SoVertexShape inherited;

  SO_NODE_ABSTRACT_HEADER(SoIndexedShape);

public:
  static void initClass(void);

  SoMFInt32 coordIndex;
  SoMFInt32 materialIndex;
  SoMFInt32 normalIndex;
  SoMFInt32 textureCoordIndex;

protected:
  SoIndexedShape(void);
  virtual ~SoIndexedShape();

  virtual void computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center);
  int getNumVerts(const int startCoord);
  void setupIndices(const int numParts, const int numFaces,
                    const SbBool needNormals, const SbBool needTexCoords);

  const int32_t * getNormalIndices(void);
  const int32_t * getColorIndices(void);
  const int32_t * getTexCoordIndices(void);

  static SbBool areTexCoordsIndexed(SoAction * action);

  SbBool getVertexData(SoState * state,
                       const SoCoordinateElement *& coords,
                       const SbVec3f *& normals,
                       const int32_t *& cindices,
                       const int32_t *& nindices,
                       const int32_t *& tindices,
                       const int32_t *& mindices,
                       int & numcindices,
                       const SbBool needNormals,
                       SbBool & normalCacheUsed);

private:
  // FIXME: these are not in use, but we can't kill them until Coin
  // v2, or we'd break ABI compatibility.  20010910 mortene.
  int32_t * tIndices;
  int32_t * nIndices;
  int32_t * mIndices;
};


#endif // !COIN_SOINDEXEDSHAPE_H

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