Graphic auxillary structures and enum types

PpolyType

 F,
 FL,
 G,
 GL,
 Tex,
 TexL,
 TexG,
 TexGL,
 CTex,
 CTexL,
 CTexG,
 CTexGL,

 AF,
 AFL,
 AG,
 AGL,
 ATex,
 ATexL,
 ATexG,
 ATexGL,
 CATex,
 CATexL,
 CATexG,
 CATexGL,

 BAptTex,

 PpolyTypeNum
} PpolyType;

typedef Trotation Pmatrix;

typedef Tpoint  Ppoint;

typedef struct Pcolor {
 float r, g, b, a;
} Pcolor;

typedef struct Pnormal {
 float i, j, k;
} Pnormal;

typedef struct Ptexcoord {
 float u, v;
} Ptexcoord;

typedef float Pintensity;

typedef struct PclipInfo {
 UInt32 clipFlag;   // Which edges this point is outside
 float csX, csY, csZ;  // Camera space coordinates of this point
} PclipInfo;
 

/********************************************\
 Polygon structures
\********************************************/
typedef struct Prim {
 PpolyType type;
 int   nVerts;
 int   *xyz;  // Indexes XformedPosPool
} Prim;

typedef struct PrimPointFC: public Prim {
 int   rgba;  // Indexes ColorPool
} PrimPointFC;

typedef struct PrimLineFC: public Prim {
 int   rgba;  // Indexes ColorPool
} PrimLineFC;

typedef struct PrimLtStr: public Prim {
 int   rgba;   // Indexes ColorPool
 int   rgbaBack;  // Indexes ColorPool (-1 means omnidirectional -- could subclass instead)
 float  i, j, k;  // Direction vector (negative dot with eyepos means use back color)
} PrimLtStr;

typedef struct Poly: public Prim {
 float  A, B, C, D; // Polygon plane equation for back face culling
} Poly;

typedef struct PolyFC: public Poly {
 int   rgba;  // Indexes ColorPool
} PolyFC;

typedef struct PolyVC: public Poly {
 int   *rgba;  // Indexes ColorPool
} PolyVC;

typedef struct PolyFCN: public PolyFC {
 int   I;   // Indexes IntesityPool
} PolyFCN;

typedef struct PolyVCN: public PolyVC {
 int   *I;   // Indexes IntesityPool
} PolyVCN;

typedef struct PolyTexFC: public PolyFC {
 int   texIndex; // Indexes the local texture id table
 Ptexcoord *uv;
} PolyTexFC;

typedef struct PolyTexVC: public PolyVC {
 int   texIndex; // Indexes the local texture id table
 Ptexcoord *uv;
} PolyTexVC;

typedef struct PolyTexFCN: public PolyFCN {
 int   texIndex; // Indexes the local texture id table
 Ptexcoord *uv;
} PolyTexFCN;

typedef struct PolyTexVCN: public PolyVCN {
 int   texIndex; // Indexes the local texture id table
 Ptexcoord *uv;
} PolyTexVCN;