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SoTextureCoordinateElement.h

00001 #ifndef COIN_SOTEXTURECOORDINATEELEMENT_H
00002 #define COIN_SOTEXTURECOORDINATEELEMENT_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) by Kongsberg Oil & Gas Technologies.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Kongsberg Oil & Gas Technologies
00018  *  about acquiring a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <Inventor/elements/SoReplacedElement.h>
00028 #include <Inventor/SbVec2f.h>
00029 #include <Inventor/SbVec3f.h>
00030 #include <Inventor/SbVec4f.h>
00031 
00032 /*
00033  * TODO
00034  * - conversion between 2D and 4D (like Open Inventor)
00035  */
00036 
00037 typedef const SbVec4f & SoTextureCoordinateFunctionCB(void * userdata,
00038                                                       const SbVec3f & point,
00039                                                       const SbVec3f & normal);
00040 
00041 class COIN_DLL_API SoTextureCoordinateElement : public SoReplacedElement {
00042   typedef SoReplacedElement inherited;
00043 
00044   SO_ELEMENT_HEADER(SoTextureCoordinateElement);
00045 public:
00046   static void initClass(void);
00047 protected:
00048   virtual ~SoTextureCoordinateElement();
00049 
00050 public:
00051 
00052   enum CoordType {
00053     NONE = 0,
00054     TEXGEN = 0,
00055     EXPLICIT = 1,
00056     FUNCTION = 2,
00057     DEFAULT = 3
00058   };
00059 
00060   virtual void init(SoState * state);
00061 
00062   static void setDefault(SoState * const state, SoNode * const node);
00063   static void setFunction(SoState * const state, SoNode * const node,
00064                           SoTextureCoordinateFunctionCB * const func,
00065                           void * const userdata);
00066 
00067   static void set2(SoState * const state, SoNode * const node,
00068                    const int32_t numCoords, const SbVec2f * const coords);
00069   static void set3(SoState * const state, SoNode * const node,
00070                    const int32_t numCoords, const SbVec3f * const coords);
00071   static void set4(SoState * const state, SoNode * const node,
00072                    const int32_t numCoords, const SbVec4f * const coords);
00073 
00074   static CoordType getType(SoState * const state);
00075   virtual CoordType getType(void) const;
00076 
00077   static const SoTextureCoordinateElement *getInstance(SoState * const state);
00078 
00079   const SbVec4f &get(const SbVec3f & point,
00080                      const SbVec3f & normal) const;
00081   int32_t getNum(void) const;
00082   SbBool is2D(void) const;
00083   int32_t getDimension(void) const;
00084 
00085   const SbVec2f &get2(const int index) const;
00086   const SbVec3f &get3(const int index) const;
00087   const SbVec4f &get4(const int index) const;
00088 
00089   const SbVec2f *getArrayPtr2(void) const;
00090   const SbVec3f *getArrayPtr3(void) const;
00091   const SbVec4f *getArrayPtr4(void) const;
00092 
00093 protected:
00094   CoordType whatKind;
00095   SoTextureCoordinateFunctionCB *funcCB;
00096   void *funcCBData;
00097   int32_t numCoords;
00098   const SbVec2f *coords2;
00099   const SbVec3f *coords3;
00100   const SbVec4f *coords4;
00101   SbBool coordsDimension;
00102   SbVec2f convert2;
00103   SbVec3f convert3;
00104   SbVec4f convert4;
00105 };
00106 
00107 #endif // !COIN_SOTEXTURECOORDINATEELEMENT_H

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