132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
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/**
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** File : glmesh.h
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** Description: Mesh definition
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**/
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#ifndef _glmesh_h_
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#define _glmesh_h_
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#include <objidl.h>
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#include <fstream.h>
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#include <limits.h>
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#include "glstructs.h"
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#include "excptn.h"
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/*************************************************************************
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Defines
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*************************************************************************/
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#define UNDEF USHRT_MAX
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/*************************************************************************
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Typedefs, structs and classes
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*************************************************************************/
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typedef enum {
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GLPM_SOLID=0x0001,
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GLPM_WIRE=0x0002,
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} RenderType;
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struct hashentry
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{
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WORD v2;
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WORD f, m; // face and it's matid
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hashentry* next;
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};
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typedef hashentry* PHASHENTRY;
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class CGlMesh
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{
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friend class CPMesh;
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private:
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public:
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GLmaterial* m_matArray; // Array of Materials
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/*
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* Vertex-Array data
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*/
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GLvertex* m_varray; // Vertex Array to store Wedges/Vertices
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GLnormal* m_narray; // Normal Array to store Normals
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GLtexCoord* m_tarray; // Texture Array
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GLface* m_farray; // Face Array
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WORD* m_facemap; // Array remapping the face numbers
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WORD* m_wedgelist; // circular linked lists of wedges sharing the same
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// vertex
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WORD (*m_fnei)[3]; // face neightbour information table
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WORD* m_matcnt; // table of face counts per material
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#ifdef __MATPOS_IS_A_PTR
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GLface** m_matpos; // pointers to where next face of a given material
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// is inserted in the m_farray
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#else
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WORD* m_matpos; // pointers to where next face of a given material
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// is inserted in the m_farray
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#endif
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DWORD m_numFaces;
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DWORD m_numWedges;
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DWORD m_numVerts;
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DWORD m_numMaterials;
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DWORD m_numTextures;
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public:
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//Constructor-Destructor
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CGlMesh();
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~CGlMesh();
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STDMETHODIMP Print (ostream& os);
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STDMETHODIMP Render (RenderType);
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#if 0
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STDMETHODIMP AddWedge (WORD vertex_id, GLnormal& n, GLtexCoord& t,
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DWORD* const wedge_id);
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STDMETHODIMP AddWedge (WORD vertex_id, WORD old_wedge_id,
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DWORD* const wedge_id);
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STDMETHODIMP AddFace (WORD matid, GLface& f);
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#endif
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inline DWORD GetNumFaces (void) const {return m_numFaces;};
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inline DWORD GetNumWedges (void) const {return m_numWedges;};
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inline DWORD GetNumVerts (void) const {return m_numVerts;};
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void ComputeAdjacency(void);
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//inline LPGLMaterial GetMaterial (int i) {return &(m_matArray[i]);}
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inline WORD FindVertexIndex(WORD w) const;
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private:
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#ifdef __MATPOS_IS_A_PTR
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inline WORD GetFaceIndex(int m, int f) const;
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#endif
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void HashAdd(WORD va, WORD vb, WORD f);
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WORD HashFind(WORD va, WORD vb);
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};
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/*************************************************************************
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Inlines
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*************************************************************************/
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inline WORD CGlMesh::FindVertexIndex(WORD w) const
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{
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WORD v = USHRT_MAX;
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WORD p = w;
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do
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{
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v = min(p,v);
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p = m_wedgelist[p];
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}
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while (p != w);
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return v;
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}
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#ifdef __MATPOS_IS_A_PTR
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inline WORD CGlMesh::GetFaceIndex(int m, int f) const
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{
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return (WORD) (&(m_matpos[m][f].w[0]) -
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&(m_matpos[0][0].w[0]))/(sizeof(GLface));
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}
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#endif
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#endif //_glmesh_h_
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