1 |
gwlarson |
2.13 |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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greg |
1.1 |
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3 |
gregl |
2.9 |
/* SCCSid "$SunId$ SGI" */ |
4 |
greg |
1.1 |
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5 |
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/* |
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* Miscellaneous definitions required by many routines. |
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*/ |
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#include <stdio.h> |
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11 |
gwlarson |
2.12 |
#include <sys/types.h> |
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greg |
2.2 |
#include <fcntl.h> |
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15 |
greg |
1.1 |
#include <math.h> |
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17 |
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#include <errno.h> |
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greg |
1.5 |
#include "mat4.h" |
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/* regular transformation */ |
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typedef struct { |
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MAT4 xfm; /* transform matrix */ |
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greg |
1.8 |
FLOAT sca; /* scalefactor */ |
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greg |
1.5 |
} XF; |
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/* complemetary tranformation */ |
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typedef struct { |
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XF f; /* forward */ |
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XF b; /* backward */ |
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} FULLXF; |
30 |
greg |
1.1 |
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31 |
greg |
2.7 |
#ifndef PI |
32 |
greg |
2.2 |
#ifdef M_PI |
33 |
gregl |
2.11 |
#define PI ((double)M_PI) |
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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 |
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39 |
greg |
2.2 |
#ifndef F_OK /* mode bits for access(2) call */ |
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#define R_OK 4 /* readable */ |
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#define W_OK 2 /* writable */ |
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#define X_OK 1 /* executable */ |
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#define F_OK 0 /* exists */ |
44 |
gwlarson |
2.13 |
#endif |
45 |
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46 |
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#ifndef int2 |
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#define int2 short /* two-byte integer */ |
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#endif |
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#ifndef int4 |
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#define int4 int /* four-byte integer */ |
51 |
greg |
1.2 |
#endif |
52 |
gregl |
2.9 |
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53 |
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extern int eputs(), wputs(); /* standard error output functions */ |
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55 |
greg |
1.1 |
/* error codes */ |
56 |
gregl |
2.10 |
#define WARNING 0 /* non-fatal error */ |
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#define USER 1 /* fatal user-caused error */ |
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#define SYSTEM 2 /* fatal system-related error */ |
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#define INTERNAL 3 /* fatal program-related error */ |
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#define CONSISTENCY 4 /* bad consistency check, abort */ |
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#define COMMAND 5 /* interactive error */ |
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#define NERRS 6 |
63 |
gregl |
2.9 |
/* error struct */ |
64 |
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extern struct erract { |
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char pre[16]; /* prefix message */ |
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int (*pf)(); /* put function (resettable) */ |
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int ec; /* exit code (0 means non-fatal) */ |
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} erract[NERRS]; /* list of error actions */ |
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#define ERRACT_INIT { {"warning - ", wputs, 0}, \ |
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{"fatal - ", eputs, 1}, \ |
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{"system - ", eputs, 2}, \ |
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{"internal - ", eputs, 1}, \ |
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{"consistency - ", eputs, -1}, \ |
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{"", NULL, 0} } |
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greg |
1.1 |
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extern char errmsg[]; /* global buffer for error messages */ |
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79 |
gwlarson |
2.14 |
#ifdef FASTMATH |
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#define tcos cos |
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#define tsin sin |
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#define ttan tan |
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#else |
84 |
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extern double tcos(); /* table-based cosine approximation */ |
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#define tsin(x) tcos((x)-(PI/2.)) |
86 |
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#define ttan(x) (tsin(x)/tcos(x)) |
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#endif |
88 |
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/* custom version of assert(3) */ |
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#define CHECK(be,et,em) ((be) ? error(et,em) : 0) |
90 |
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#ifdef DEBUG |
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#define DCHECK CHECK |
92 |
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#else |
93 |
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#define DCHECK(be,et,em) 0 |
94 |
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#endif |
95 |
greg |
1.3 |
/* memory operations */ |
96 |
greg |
2.2 |
#ifdef NOSTRUCTASS |
97 |
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#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 |
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102 |
gwlarson |
2.14 |
#ifdef BSD |
103 |
gwlarson |
2.12 |
extern long lseek(); |
104 |
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#else |
105 |
greg |
2.2 |
#define bcopy(s,d,n) (void)memcpy(d,s,n) |
106 |
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#define bzero(d,n) (void)memset(d,0,n) |
107 |
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#define bcmp(b1,b2,n) memcmp(b1,b2,n) |
108 |
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#define index strchr |
109 |
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#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 |
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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 |
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121 |
greg |
2.5 |
#ifdef DCL_ATOF |
122 |
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extern double atof(); |
123 |
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#endif |
124 |
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125 |
greg |
2.2 |
#ifdef MSDOS |
126 |
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#define NIX 1 |
127 |
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#endif |
128 |
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#ifdef AMIGA |
129 |
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#define NIX 1 |
130 |
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#endif |
131 |
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