[372] | 1 |
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| 2 | #include <math.h>
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| 3 | #include <stdio.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <time.h>
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| 6 |
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| 7 | #include "common.h"
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| 8 |
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| 9 | #ifdef _X_WINDOW_
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| 10 | #include "xwindow.h"
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| 11 | #endif
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| 12 |
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| 13 | #ifndef _MSC_VER
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| 14 | #include <unistd.h>
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| 15 | #include <sys/types.h>
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| 16 | #include <sys/time.h>
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| 17 | #include <sys/times.h>
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| 18 | #include <sys/resource.h>
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| 19 | #else
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| 20 | #include <windows.h>
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| 21 | #include <sys/types.h>
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| 22 | #include <sys/timeb.h>
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| 23 | #endif
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| 24 |
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| 25 |
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| 26 |
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| 27 | // global file streams
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| 28 | ofstream Debug;
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| 29 |
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| 30 | int CGlobals::Special=0;
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| 31 |
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| 32 |
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| 33 | // Puts the specified number of spaces out to cout. Used for
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| 34 | // indentation during CObject3D::Describe().
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| 35 | void
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| 36 | indent(ostream &app, int ind)
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| 37 | {
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| 38 | int i;
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| 39 |
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| 40 | for (i = 0; i < ind; i++)
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| 41 | app << ' ';
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| 42 | }
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| 43 |
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| 44 |
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| 45 |
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| 46 | Real Limits::Threshold = 1e-6f;
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| 47 | Real Limits::Small = 0.01f;
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| 48 | Real Limits::Infinity = 1e20f;
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| 49 |
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| 50 |
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| 51 |
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| 52 |
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| 53 | Real
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| 54 | Random(Real max)
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| 55 | {
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| 56 | #ifdef __UNIX__
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| 57 | return (random()*max/0x7FFFFFFF);
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| 58 | #else
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| 59 | return (((Real)rand())/RAND_MAX)*max;
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| 60 | #endif
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| 61 |
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| 62 | }
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| 63 |
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| 64 | int Random(int max)
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| 65 | {
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| 66 | return rand()%max;
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| 67 | }
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| 68 |
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| 69 | void Randomize()
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| 70 | {
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| 71 | time_t t;
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| 72 | srand((unsigned) time(&t));
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| 73 | }
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| 74 |
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| 75 | void
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| 76 | Randomize(const unsigned int seed)
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| 77 | {
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| 78 | srand(seed);
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| 79 | }
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| 80 |
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| 81 | void GetKey(char *s)
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| 82 | {
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| 83 | #ifdef _X_WINDOW_
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| 84 | XWaitForButton(s);
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| 85 | #else
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| 86 | getch();
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| 87 | #endif
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| 88 | }
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| 89 |
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| 90 | #ifdef _MSC_VER
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| 91 | static bool hasHRTimer = false;
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| 92 | static LARGE_INTEGER hrFreq;
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| 93 | #endif
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| 94 |
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| 95 |
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| 96 | void
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| 97 | InitTiming()
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| 98 | {
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| 99 | #ifdef _MSC_VER
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| 100 | hasHRTimer = (bool) QueryPerformanceFrequency(&hrFreq);
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| 101 | #endif
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| 102 | }
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| 103 |
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| 104 | long
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| 105 | GetTime()
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| 106 | {
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| 107 | #ifndef _MSC_VER
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| 108 | static struct rusage r;
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| 109 | getrusage(RUSAGE_SELF,&r);
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| 110 | return r.ru_utime.tv_usec+1000000*r.ru_utime.tv_sec;
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| 111 | #else
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| 112 | if (hasHRTimer) {
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| 113 | LARGE_INTEGER counter;
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| 114 | QueryPerformanceCounter(&counter);
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| 115 | // return in usec
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| 116 | return (long) (1000000*counter.QuadPart/(hrFreq.QuadPart));
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| 117 | } else {
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| 118 | static struct _timeb mtime;
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| 119 | _ftime(&mtime);
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| 120 |
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| 121 | return 1000*(1000*mtime.time + mtime.millitm);
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| 122 | }
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| 123 | #endif
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| 124 | }
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| 125 |
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| 126 |
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| 127 | long
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| 128 | GetRealTime()
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| 129 | {
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| 130 | #ifndef _MSC_VER
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| 131 | static struct timeval _tstart;
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| 132 | static struct timezone tz;
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| 133 | gettimeofday(&_tstart,&tz);
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| 134 | return (long)(1000000*_tstart.tv_sec + _tstart.tv_usec);
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| 135 | #else
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| 136 | if (hasHRTimer) {
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| 137 | LARGE_INTEGER counter;
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| 138 | QueryPerformanceCounter(&counter);
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| 139 | // return in usec
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| 140 | return (long) (1000000*counter.QuadPart/(hrFreq.QuadPart));
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| 141 | } else {
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| 142 | static struct _timeb mtime;
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| 143 | _ftime(&mtime);
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| 144 | return 1000*(1000*mtime.time + mtime.millitm);
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| 145 | }
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| 146 | #endif
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| 147 | }
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| 148 |
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| 149 | // return time diff. in ms
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| 150 | Real
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| 151 | TimeDiff(long time1,long time2) // in ms
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| 152 | {
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| 153 | const Real clk=1.0e-3f; // ticks per second
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| 154 | long t=time2-time1;
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| 155 |
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| 156 | return ((t<0)?-t:t)*clk;
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| 157 | }
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| 158 |
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| 159 | char *
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| 160 | TimeString()
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| 161 | {
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| 162 | time_t t;
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| 163 | time(&t);
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| 164 | return ctime(&t);
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| 165 | }
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| 166 |
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| 167 | char *
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| 168 | GetAbsPath(char *name)
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| 169 | {
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| 170 | // char *url = new char[strlen(name)+1];
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| 171 | // strcpy(url,name);
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| 172 |
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| 173 | // get the absolute path
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| 174 | int c = strlen(name);
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| 175 | int i = c-1;
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| 176 | bool wasDot = false;
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| 177 | // search for double dot
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| 178 | for (;i>=0;i--)
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| 179 | if (name[i]=='.') {
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| 180 | if (wasDot)
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| 181 | break;
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| 182 | wasDot = true;
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| 183 | } else
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| 184 | wasDot = false;
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| 185 |
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| 186 | if (i>0)
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| 187 | i+=3;
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| 188 | if (i<0)
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| 189 | i=0;
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| 190 |
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| 191 | char *url = new char[c-i+1];
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| 192 | int j=0;
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| 193 | for (;i<c;i++,j++)
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| 194 | url[j] = name[i];
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| 195 | url[j]=0;
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| 196 |
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| 197 | return url;
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| 198 | }
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| 199 |
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| 200 | char *
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| 201 | GetPath(const char *s)
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| 202 | {
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| 203 | int i=strlen(s);
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| 204 | for (; i>0; i--) {
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| 205 | if (s[i]=='/' || s[i]=='\\')
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| 206 | break;
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| 207 | }
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| 208 |
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| 209 | char *path = new char[i+1];
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| 210 | int j=0;
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| 211 | for (; j<i; j++)
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| 212 | path[j] = s[j];
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| 213 | path[j] = 0;
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| 214 | return path;
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| 215 | }
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| 216 |
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| 217 |
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| 218 | char *
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| 219 | strdup(char *a)
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| 220 | {
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| 221 | if (a) {
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| 222 | char *s = new char[strlen(a)+1];
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| 223 | strcpy(s,a);
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| 224 | return s;
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| 225 | } else
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| 226 | return NULL;
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| 227 | }
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| 228 |
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| 229 | bool
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| 230 | FileExists(char *filename)
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| 231 | {
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| 232 | FILE *f;
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| 233 |
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| 234 | f = fopen(filename,"r");
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| 235 | if (f) {
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| 236 | fclose(f);
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| 237 | return true;
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| 238 | }
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| 239 | return false;
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| 240 | }
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| 241 |
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| 242 |
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| 243 | #if 0
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| 244 | bool
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| 245 | CreateDir(char *dir)
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| 246 | {
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| 247 | #ifdef _MSC_VER
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| 248 | HANDLE fFile; // File Handle
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| 249 | WIN32_FIND_DATA fileinfo; // File Information Structure
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| 250 | int n = strlen(dir) - 1;
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| 251 |
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| 252 | if (dir[n] == '\\' || dir[n] == '/')
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| 253 | dir[n]=0;
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| 254 |
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| 255 | fFile = FindFirstFile(dir, &fileinfo);
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| 256 |
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| 257 | // if the file exists and it is a directory
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| 258 | if (fileinfo.dwFileAttributes == FILE_ATTRIBUTE_DIRECTORY) {
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| 259 | // Directory Exists close file and return
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| 260 | FindClose(fFile);
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| 261 | return true;
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| 262 | }
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| 263 |
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| 264 | FindClose(fFile);
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| 265 |
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| 266 | // Now lets cycle through the String Array and create each directory in turn
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| 267 | if (CreateDirectory(dir, 0)) {
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| 268 | SetFileAttributes(dir, FILE_ATTRIBUTE_NORMAL);
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| 269 | return true;
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| 270 | } else {
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| 271 | char *temp = GetPath(dir);
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| 272 |
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| 273 | if (strcmp(temp, dir)!=0) {
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| 274 | CreateDir(temp);
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| 275 | if (CreateDirectory(dir, 0)) {
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| 276 | SetFileAttributes(dir, FILE_ATTRIBUTE_NORMAL);
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| 277 | return true;
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| 278 | }
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| 279 | }
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| 280 | delete temp;
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| 281 | }
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| 282 | Debug << "cannot create directory " << dir << endl;
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| 283 | #endif
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| 284 | return false;
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| 285 | }
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| 286 | #endif
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