StripProcessorT.hh

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//=============================================================================
//
//  CLASS StripProcessorT
//
//=============================================================================
 
 
#ifndef ACG_STRIP_PROCESSOR_HH
#define ACG_STRIP_PROCESSOR_HH
 
 
//== INCLUDES =================================================================
 
#include <vector>
#include <OpenMesh/Core/Utils/Property.hh>
#include <OpenMesh/Core/IO/MeshIO.hh>
 
#include "../Config/ACGDefines.hh"
 
#include <ACG/GL/GLState.hh>
 
//== FORWARDDECLARATIONS ======================================================
 
 
//== NAMESPACES ===============================================================
 
namespace ACG {
namespace SceneGraph {
 
 
//== CLASS DEFINITION =========================================================
 
class ACGDLLEXPORT Strip {
  
public:
    
  std::vector< unsigned int > indexArray;
  
  std::vector< OpenMesh::FaceHandle > faceMap;
  
  int textureIndex;
  
};
 
bool ACGDLLEXPORT stripTextureCompare(const Strip& i,const Strip& j);
 
class ACGDLLEXPORT TextureRenderInfo {
  public:
  TextureRenderInfo(int _textureId,int _faceCount,int _startOffset):
  textureId(_textureId),
  faceCount(_faceCount),
  startOffset(_startOffset)
  {};
  
  int textureId;
  int faceCount;
  int startOffset;
};
 
 
 
template <class Mesh>
class StripProcessorT
{
public:
    
  typedef unsigned int                      Index;
  typedef std::vector<Strip>                Strips;
  typedef typename Strips::const_iterator   StripsIterator;
  typedef typename Mesh::FaceHandle         FaceHandle;
 
  StripProcessorT(Mesh& _mesh);
 
  ~StripProcessorT();
 
  unsigned int stripify();
 
  void clear() { Strips().swap(strips_); }
 
  unsigned int nStrips() const { return strips_.size(); }
 
  StripsIterator begin() const { return strips_.begin(); }
  StripsIterator end()   const { return strips_.end(); }
 
 
private:
 
  
 
  void convexityTest(FaceHandle _fh);
 
  OpenMesh::FPropHandleT<bool>::reference  processed(typename Mesh::FaceHandle _fh) {
    return mesh_.property(processed_, _fh);
  }
  OpenMesh::FPropHandleT<bool>::reference  used(typename Mesh::FaceHandle _fh) {
    return mesh_.property(used_, _fh);
  }
 
 
 
private:
 
  Mesh&                          mesh_;
  Strips                         strips_;
  OpenMesh::FPropHandleT<bool>   processed_, used_;
  
//===========================================================================
//===========================================================================    
public:
  
void invalidateStrips() { stripsValid_ = false; };
  
private:  
  
typedef std::vector<typename Mesh::FaceHandle>  FaceHandles;
 
bool stripsValid_;  
 
void buildStrips();
 
void buildStripsTriMesh();
 
void buildStripsPolyMesh();
 
 
void buildStripTriMesh(typename Mesh::HalfedgeHandle _start_hh,
                        Strip& _strip,
                        FaceHandles& _faces);
                        
void buildStripPolyMesh(typename Mesh::HalfedgeHandle _start_hh,
                        Strip& _strip,
                        FaceHandles& _faces);
                                                 
//===========================================================================
//===========================================================================    
public:  
  ACG::Vec3f * perEdgeVertexBuffer();   
 
  ACG::Vec4f * perEdgeColorBuffer();   
  
  void invalidatePerEdgeBuffers(){ updatePerEdgeBuffers_ = true; };
  
private:
  void updatePerEdgeBuffers();  
  
  std::vector< ACG::Vec3f >  perEdgeVertexBuffer_;
  
  std::vector< ACG::Vec4f >  perEdgeColorBuffer_;
  
  bool updatePerEdgeBuffers_;
 
//===========================================================================
//===========================================================================    
public:  
  ACG::Vec3f * perHalfedgeVertexBuffer();   
 
  ACG::Vec4f * perHalfedgeColorBuffer();   
  
  void invalidatePerHalfedgeBuffers(){ updatePerHalfedgeBuffers_ = true; };
  
private:
  void updatePerHalfedgeBuffers();  
  
  
  typename Mesh::Point halfedge_point(const typename Mesh::HalfedgeHandle _heh);
 
  std::vector< ACG::Vec3f >  perHalfedgeVertexBuffer_;
  
  std::vector< ACG::Vec4f >  perHalfedgeColorBuffer_;
  
  bool updatePerHalfedgeBuffers_;
 
//===========================================================================
//===========================================================================      
 
public:
  ACG::Vec3f * perFaceVertexBuffer();
  
  ACG::Vec3f * perFaceNormalBuffer();
  
  ACG::Vec3f * perFacePerVertexNormalBuffer();
  
  ACG::Vec4f * perFaceColorBuffer();  
  
  unsigned int perFaceVertexBufferSize(){ return perFaceVertexBuffer_.size(); };
 
  void invalidatePerFaceBuffers(){ updatePerFaceBuffers_ = true; };
  
private:
  void updatePerFaceBuffers();
  
  std::vector< ACG::Vec3f >  perFaceVertexBuffer_;
  std::vector< ACG::Vec4f >  perFaceColorBuffer_;
  std::vector< ACG::Vec3f >  perFaceNormalBuffer_;
  std::vector< ACG::Vec3f >  perFacePerVertexNormalBuffer_;
 
  bool updatePerFaceBuffers_;
  
//===========================================================================
//===========================================================================    
  
public:
  
  void updatePickingVertices(ACG::GLState& _state , uint _offset = 0);    
  
  ACG::Vec4uc * pickVertexColorBuffer(){ return &(pickVertexColorBuf_)[0]; };
  
private:  
  
  std::vector< ACG::Vec4uc > pickVertexColorBuf_;
  
 
//===========================================================================
//===========================================================================    
 
  public:
    
    void updatePickingEdges(ACG::GLState& _state , uint _offset = 0 );    
    
    ACG::Vec4uc * pickEdgeColorBuffer(){ return &(pickEdgeColorBuf_)[0]; };
    
 
    
  private:  
    
    std::vector< ACG::Vec4uc > pickEdgeColorBuf_;
    
    
//===========================================================================
//===========================================================================    
 
public:
  
  void updatePickingFaces(ACG::GLState& _state );    
  
  ACG::Vec4uc * pickFaceColorBuffer(){ return &(pickFaceColorBuf_)[0]; };
  
 
  
private:  
  
  void updatePickingFacesTrimesh(ACG::GLState& _state );
  
  void updatePickingFacesPolymesh(ACG::GLState& _state );
  
  std::vector< ACG::Vec4uc > pickFaceColorBuf_;
  
  //===========================================================================
  //===========================================================================    
  
public:
  
  void updatePickingAny(ACG::GLState& _state );    
  
  ACG::Vec4uc * pickAnyColorBuffer(){ return &(pickAnyColorBuf_)[0]; };
  
private:  
  
  std::vector< ACG::Vec4uc > pickAnyColorBuf_;
  
//===========================================================================
//===========================================================================    
 
public:
  void setIndexPropertyName( std::string _indexPropertyName );
  
  const std::string& indexPropertyName() const { return textureIndexPropertyName_; };
  
  void setPerFaceTextureCoordinatePropertyName( std::string _perFaceTextureCoordinatePropertyName );
  
  bool perFaceTextureCoordinateAvailable();
  
  bool perFaceTextureIndexAvailable();
  
  ACG::Vec2f * perFacePerVertexTextureCoordBuffer(){ return &(perFaceTextureCoordArray_)[0]; };
  
  std::vector< TextureRenderInfo >* textureRenderData(){ return &textureRenderData_; };
 
private:
  
  std::string textureIndexPropertyName_;
 
  std::string perFaceTextureCoordinatePropertyName_;
  
  std::vector< ACG::Vec2f >  perFaceTextureCoordArray_;
  
  std::vector< TextureRenderInfo > textureRenderData_;
 
};
 
 
//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(ACG_STRIP_PROCESSOR_C)
#define ACG_STRIP_PROCESSOR_TEMPLATES
#include "StripProcessorT_impl.hh"
#endif
//=============================================================================
#endif // ACG_STRIP_PROCESSOR_HH defined
//=============================================================================