tools/prisms.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 *
 * NAME:        prisms.h (C)
 *
 * COMMENTS:
 *      Contains:
 *      #define for 
 *              Magic Numbers for binary files
 *              Array index values to match VECTOR & POINT fields
 *      typedefs for basic prisms entities: 
 *              Point, Vector, Color, Texture, Mat33, Mat44
 *              (both as structures and as arrays)
 *
 */

#ifndef __PRISMS_H__
#define __PRISMS_H__

#ifdef __cplusplus
extern "C" {
#endif

/* TRUE and FALSE get defined all over the place, so here's one more! */
#if !defined(TRUE) || ((TRUE) != 1)
#define TRUE    (1)
#endif

#if !defined(FALSE) || ((FALSE) != 0)
#define FALSE   (0)
#endif

/*
 * CSD file types
 */

#define ANY     0
#define ASCII   0x100
#define BPOLY   0x1
#define POLY    (BPOLY | ASCII)
#define BPATCH  0x20
#define PATCH   (BPATCH | ASCII)
#define DRAW    0x80
#define BCHAN   0x200
#define CHAN    (BCHAN | ASCII)

/* Magic Numbers for the binary files   */
/* Pattern to magic numbers:            */
/*      the suffix of the file name.    */

#define BPOLY_CODE      0x62706F6C      /* "bpol" */
#define BPATCH_CODE     0x62706174      /* "bpat" */
#define BCHAN_CODE      0x6E616863      /* "nahc" (chan) */

/* Array indices */

/* indices for geometric arrays */
#define XINDEX  0       /* geometric index */
#define YINDEX  1       /* geometric index */
#define ZINDEX  2       /* geometric index */
#define WINDEX  3       /* geometric index */

/* indices for COLOR    */
#define RINDEX  0       /* color index */
#define GINDEX  1       /* color index */
#define BINDEX  2       /* color index */
#define TINDEX  3       /* color index */

/* indices for TEXTURE  */
#define TXTU    0       /* texture index */
#define TXTV    1       /* texture index */

/* Basic Entities as Arrays */

#ifndef WIN32
        typedef float   POINT[4];               /* 1 x 4 matrix array */
#endif

typedef float   VECTOR[3];              /* 1 x 3 matrix array */
typedef float   COLOR[4];               /* 1 x 4 matrix array */
typedef float   TEXTURE[2];             /* 1 x 2 matrix array */
typedef float   Mat33[3][3];            /* 3 x 3 matrix array */
typedef float   Mat44[4][4];            /* 4 x 4 matrix array */
typedef unsigned char   CHARCOLOR[4];   /* 1 x 4 matrix array */
typedef float   BoundingBox[3][2];      /* Bounding box */


/* Basic Entities as Structures */
#if !defined(MBSD)
typedef struct  { 
        float x;                /* 3-D x coordinate       */
        float y;                /* 3-D y coordinate       */
        float z;                /* 3-D z coordinate       */
        float w;                /* Homogeneous coordinate */
} Point, *PointPointer;
#endif

typedef struct  { 
        float x;                /* 3-D x component        */
        float y;                /* 3-D y component        */
        float z;                /* 3-D z component        */
} Vector, *VectorPointer;

typedef struct {
        float r;                /* Color red    */
        float g;                /* Color green  */
        float b;                /* Color blue   */
        float t;                /* Transparency */
} Color, *ColorPointer;

#ifndef SESI_LITTLE_ENDIAN
typedef struct {
        unsigned char t;        /* 8 bits transparency */
        unsigned char b;        /* 8 bits blue  */
        unsigned char g;        /* 8 bits green */
        unsigned char r;        /* 8 bits red   */
} CharColor, *CharColorPointer;
#else
typedef struct {
        unsigned char r;        /* 8 bits red   */
        unsigned char g;        /* 8 bits green */
        unsigned char b;        /* 8 bits blue  */
        unsigned char t;        /* 8 bits transparency */
} CharColor, *CharColorPointer;
#endif

typedef struct {
        float u;                /* Texture map u coordinate */
        float v;                /* Texture map v coordinate */
} Txtr, *TxtrPointer;

typedef struct { 
        float   _00, _01, _02,
                _10, _11, _12,
                _20, _21, _22; 
} MatStruct33, *MatStruct33Pointer;

typedef struct { 
        float   _00, _01, _02, _03,
                _10, _11, _12, _13,
                _20, _21, _22, _23,
                _30, _31, _32, _33; 
} MatStruct44, *MatStruct44Pointer;

#ifdef SYSTEM5

#ifndef bcopy
#define bcopy(a, b, c)  memcpy((b), (a), (c))
#endif

#ifndef bzero
#define bzero(a, b)     memset((a), 0, (b))
#endif

#define index   strchr
#define rindex  strrchr

#if !defined(__STRING_H__) && !defined(WIN32)
extern char *strchr(const char *, int);
extern char *strrchr(const char *, int);
#endif

#endif

#ifdef BSD42
#define strchr  index
#define strrchr rindex

extern char *index(), *rindex();
#endif

#ifdef __cplusplus
}
#endif

#endif          /* __PRISMS_H__ */

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