src/common/standard.h

/* Copyright (c) 1998 Silicon Graphics, Inc. */

/* SCCSid "$SunId$ SGI" */

/*
 *      Miscellaneous definitions required by many routines.
 */

#include  <stdio.h>

#include  <sys/types.h>

#include  <fcntl.h>

#include  <math.h>

#include  <errno.h>

#include  "mat4.h"
                                /* regular transformation */
typedef struct {
        MAT4  xfm;                              /* transform matrix */
        FLOAT  sca;                             /* scalefactor */
}  XF;
                                /* complemetary tranformation */
typedef struct {
        XF  f;                                  /* forward */
        XF  b;                                  /* backward */
}  FULLXF;

#ifndef  PI
#ifdef  M_PI
#define  PI             ((double)M_PI)
#else
#define  PI             3.14159265358979323846
#endif
#endif

#ifndef  F_OK                   /* mode bits for access(2) call */
#define  R_OK           4               /* readable */
#define  W_OK           2               /* writable */
#define  X_OK           1               /* executable */
#define  F_OK           0               /* exists */
#endif

#ifndef  int2
#define  int2           short           /* two-byte integer */
#endif
#ifndef  int4
#define  int4           int             /* four-byte integer */
#endif

extern int  eputs(), wputs();   /* standard error output functions */

                                /* error codes */
#define  WARNING        0               /* non-fatal error */
#define  USER           1               /* fatal user-caused error */
#define  SYSTEM         2               /* fatal system-related error */
#define  INTERNAL       3               /* fatal program-related error */
#define  CONSISTENCY    4               /* bad consistency check, abort */
#define  COMMAND        5               /* interactive error */
#define  NERRS          6
                                /* error struct */
extern struct erract {
        char    pre[16];                /* prefix message */
        int     (*pf)();                /* put function (resettable) */
        int     ec;                     /* exit code (0 means non-fatal) */
} erract[NERRS];        /* list of error actions */

#define  ERRACT_INIT    {       {"warning - ", wputs, 0}, \
                                {"fatal - ", eputs, 1}, \
                                {"system - ", eputs, 2}, \
                                {"internal - ", eputs, 1}, \
                                {"consistency - ", eputs, -1}, \
                                {"", NULL, 0}   }

extern char  errmsg[];                  /* global buffer for error messages */

#ifdef  FASTMATH
#define  tcos                   cos
#define  tsin                   sin
#define  ttan                   tan
#else
extern double   tcos();                 /* table-based cosine approximation */
#define  tsin(x)                tcos((x)-(PI/2.))
#define  ttan(x)                (tsin(x)/tcos(x))
#endif
                                        /* custom version of assert(3) */
#define  CHECK(be,et,em)        ((be) ? error(et,em) : 0)
#ifdef  DEBUG
#define  DCHECK                 CHECK
#else
#define  DCHECK(be,et,em)       0
#endif
                                        /* memory operations */
#ifdef  NOSTRUCTASS
#define  copystruct(d,s)        bcopy((char *)(s),(char *)(d),sizeof(*(d)))
#else
#define  copystruct(d,s)        (*(d) = *(s))
#endif

#ifdef  BSD
extern long  lseek();
#else
#define  bcopy(s,d,n)           (void)memcpy(d,s,n)
#define  bzero(d,n)             (void)memset(d,0,n)
#define  bcmp(b1,b2,n)          memcmp(b1,b2,n)
#define  index                  strchr
#define  rindex                 strrchr
extern off_t  lseek();
#endif
extern long  ftell();

extern char  *sskip(), *sskip2();
extern char  *getpath(), *getenv();
#ifndef malloc
extern char  *malloc(), *calloc(), *realloc();
#endif
extern char  *bmalloc(), *savestr(), *savqstr();

#ifdef  DCL_ATOF
extern double  atof();
#endif

#ifdef MSDOS
#define NIX 1
#endif
#ifdef AMIGA
#define NIX 1
#endif

Revision:	2.14
Committed:	Wed Dec 16 18:16:12 1998 UTC (26 years, 10 months ago) by gwlarson
Content type:	text/plain
Branch:	MAIN
Changes since 2.13:	+17 -1 lines
Log Message:	added new tcos() table-lookup function and tsin() and ttan() macros added DCHECK(test,error_type,error_message) macro for debugging checks
#	User	Rev	Content
1	gwlarson	2.13	/* Copyright (c) 1998 Silicon Graphics, Inc. */
2	greg	1.1
3	gregl	2.9	/* SCCSid "$SunId$ SGI" */
4	greg	1.1
5			/*
6			* Miscellaneous definitions required by many routines.
7			*/
8
9			#include <stdio.h>
10
11	gwlarson	2.12	#include <sys/types.h>
12
13	greg	2.2	#include <fcntl.h>
14
15	greg	1.1	#include <math.h>
16
17			#include <errno.h>
18
19	greg	1.5	#include "mat4.h"
20			/* regular transformation */
21			typedef struct {
22			MAT4 xfm; /* transform matrix */
23	greg	1.8	FLOAT sca; /* scalefactor */
24	greg	1.5	} XF;
25			/* complemetary tranformation */
26			typedef struct {
27			XF f; /* forward */
28			XF b; /* backward */
29			} FULLXF;
30	greg	1.1
31	greg	2.7	#ifndef PI
32	greg	2.2	#ifdef M_PI
33	gregl	2.11	#define PI ((double)M_PI)
34	greg	1.1	#else
35	greg	2.2	#define PI 3.14159265358979323846
36	greg	2.7	#endif
37	greg	1.1	#endif
38	greg	1.2
39	greg	2.2	#ifndef F_OK /* mode bits for access(2) call */
40			#define R_OK 4 /* readable */
41			#define W_OK 2 /* writable */
42			#define X_OK 1 /* executable */
43			#define F_OK 0 /* exists */
44	gwlarson	2.13	#endif
45
46			#ifndef int2
47			#define int2 short /* two-byte integer */
48			#endif
49			#ifndef int4
50			#define int4 int /* four-byte integer */
51	greg	1.2	#endif
52	gregl	2.9
53			extern int eputs(), wputs(); /* standard error output functions */
54
55	greg	1.1	/* error codes */
56	gregl	2.10	#define WARNING 0 /* non-fatal error */
57			#define USER 1 /* fatal user-caused error */
58			#define SYSTEM 2 /* fatal system-related error */
59			#define INTERNAL 3 /* fatal program-related error */
60			#define CONSISTENCY 4 /* bad consistency check, abort */
61			#define COMMAND 5 /* interactive error */
62			#define NERRS 6
63	gregl	2.9	/* error struct */
64			extern struct erract {
65			char pre[16]; /* prefix message */
66			int (pf)(); / put function (resettable) */
67			int ec; /* exit code (0 means non-fatal) */
68			} erract[NERRS]; /* list of error actions */
69
70			#define ERRACT_INIT { {"warning - ", wputs, 0}, \
71			{"fatal - ", eputs, 1}, \
72			{"system - ", eputs, 2}, \
73			{"internal - ", eputs, 1}, \
74			{"consistency - ", eputs, -1}, \
75			{"", NULL, 0} }
76	greg	1.1
77			extern char errmsg[]; /* global buffer for error messages */
78
79	gwlarson	2.14	#ifdef FASTMATH
80			#define tcos cos
81			#define tsin sin
82			#define ttan tan
83			#else
84			extern double tcos(); /* table-based cosine approximation */
85			#define tsin(x) tcos((x)-(PI/2.))
86			#define ttan(x) (tsin(x)/tcos(x))
87			#endif
88			/* custom version of assert(3) */
89			#define CHECK(be,et,em) ((be) ? error(et,em) : 0)
90			#ifdef DEBUG
91			#define DCHECK CHECK
92			#else
93			#define DCHECK(be,et,em) 0
94			#endif
95	greg	1.3	/* memory operations */
96	greg	2.2	#ifdef NOSTRUCTASS
97			#define copystruct(d,s) bcopy((char )(s),(char )(d),sizeof(*(d)))
98	greg	1.9	#else
99	greg	2.2	#define copystruct(d,s) ((d) = (s))
100	greg	1.3	#endif
101	greg	1.6
102	gwlarson	2.14	#ifdef BSD
103	gwlarson	2.12	extern long lseek();
104			#else
105	greg	2.2	#define bcopy(s,d,n) (void)memcpy(d,s,n)
106			#define bzero(d,n) (void)memset(d,0,n)
107			#define bcmp(b1,b2,n) memcmp(b1,b2,n)
108			#define index strchr
109			#define rindex strrchr
110	gwlarson	2.12	extern off_t lseek();
111	greg	1.3	#endif
112	gwlarson	2.12	extern long ftell();
113	greg	1.3
114	greg	2.8	extern char sskip(), sskip2();
115	greg	1.4	extern char getpath(), getenv();
116	greg	2.3	#ifndef malloc
117	greg	1.1	extern char malloc(), calloc(), *realloc();
118	greg	2.3	#endif
119	greg	1.1	extern char bmalloc(), savestr(), *savqstr();
120	greg	2.2
121	greg	2.5	#ifdef DCL_ATOF
122			extern double atof();
123			#endif
124
125	greg	2.2	#ifdef MSDOS
126			#define NIX 1
127			#endif
128			#ifdef AMIGA
129			#define NIX 1
130			#endif
131