-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+#ifdef WIN32
+#include "conio.h"
+#else
#include <unistd.h>
#include <fcntl.h>
+#include <sys/time.h>
+#include <dlfcn.h>
+#endif
#include <signal.h>
-#include <limits.h>
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <sys/time.h>
-#include <sys/wait.h>
-#include <sys/mman.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <time.h>
#include "quakedef.h"
-char *basedir = ".";
-#if CACHEENABLE
-char *cachedir = "/tmp";
+
+#ifdef WIN32
+cvar_t sys_usetimegettime = {CVAR_SAVE, "sys_usetimegettime", "1"};
#endif
-// =======================================================================
-// General routines
-// =======================================================================
+/*
+===============================================================================
+
+DLL MANAGEMENT
+
+===============================================================================
+*/
-void Sys_DebugNumber(int y, int val)
+dllhandle_t Sys_LoadLibrary (const char* name)
{
+#ifdef WIN32
+ return LoadLibrary (name);
+#else
+ return dlopen (name, RTLD_LAZY);
+#endif
}
+void Sys_UnloadLibrary (dllhandle_t handle)
+{
+#ifdef WIN32
+ FreeLibrary (handle);
+#else
+ dlclose (handle);
+#endif
+}
+
+void* Sys_GetProcAddress (dllhandle_t handle, const char* name)
+{
+#ifdef WIN32
+ return (void *)GetProcAddress (handle, name);
+#else
+ return (void *)dlsym (handle, name);
+#endif
+}
+
+
+// =======================================================================
+// General routines
+// =======================================================================
+
void Sys_Quit (void)
{
Host_Shutdown();
+#ifndef WIN32
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
+#endif
fflush(stdout);
exit(0);
}
-void Sys_Error (char *error, ...)
+void Sys_Error (const char *error, ...)
{
va_list argptr;
char string[1024];
// change stdin to non blocking
+#ifndef WIN32
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
+#endif
va_start (argptr,error);
vsprintf (string,error,argptr);
}
-void Sys_Warn (char *warning, ...)
-{
- va_list argptr;
- char string[1024];
-
- va_start (argptr,warning);
- vsprintf (string,warning,argptr);
- va_end (argptr);
- fprintf(stderr, "Warning: %s", string);
-}
-
-/*
-============
-Sys_FileTime
-
-returns -1 if not present
-============
-*/
-int Sys_FileTime (char *path)
-{
- struct stat buf;
-
- if (stat (path,&buf) == -1)
- return -1;
-
- return buf.st_mtime;
-}
-
-
-void Sys_mkdir (char *path)
-{
- mkdir (path, 0777);
-}
-
-int Sys_FileOpenRead (char *path, int *handle)
-{
- int h;
- struct stat fileinfo;
-
- h = open (path, O_RDONLY, 0666);
- *handle = h;
- if (h == -1)
- return -1;
-
- if (fstat (h,&fileinfo) == -1)
- Sys_Error ("Error fstating %s", path);
-
- return fileinfo.st_size;
-}
-
-int Sys_FileOpenWrite (char *path)
-{
- int handle;
-
- umask (0);
-
- handle = open(path,O_RDWR | O_CREAT | O_TRUNC, 0666);
-
- if (handle == -1)
- {
- Con_Printf("Sys_FileOpenWrite: Error opening %s: %s", path, strerror(errno));
- return 0;
- }
-
- return handle;
-}
-
-int Sys_FileWrite (int handle, void *src, int count)
-{
- return write (handle, src, count);
-}
-
-void Sys_FileClose (int handle)
-{
- close (handle);
-}
-
-void Sys_FileSeek (int handle, int position)
-{
- lseek (handle, position, SEEK_SET);
-}
-
-int Sys_FileRead (int handle, void *dest, int count)
-{
- return read (handle, dest, count);
-}
-
-void Sys_DebugLog(char *file, char *fmt, ...)
-{
- va_list argptr;
- static char data[1024];
- int fd;
-
- va_start(argptr, fmt);
- vsprintf(data, fmt, argptr);
- va_end(argptr);
- fd = open(file, O_WRONLY | O_CREAT | O_APPEND, 0666);
- write(fd, data, strlen(data));
- close(fd);
-}
-
double Sys_DoubleTime (void)
{
static int first = true;
static double oldtime = 0.0, curtime = 0.0;
double newtime;
+#ifdef WIN32
+ // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
+ if (sys_usetimegettime.integer)
+ {
+ static int firsttimegettime = true;
+ // timeGetTime
+ // platform:
+ // Windows 95/98/ME/NT/2000/XP
+ // features:
+ // reasonable accuracy (millisecond)
+ // issues:
+ // wraps around every 47 days or so (but this is non-fatal to us, odd times are rejected, only causes a one frame stutter)
+
+ // make sure the timer is high precision, otherwise different versions of windows have varying accuracy
+ if (firsttimegettime)
+ {
+ timeBeginPeriod (1);
+ firsttimegettime = false;
+ }
+
+ newtime = (double) timeGetTime () / 1000.0;
+ }
+ else
+ {
+ // QueryPerformanceCounter
+ // platform:
+ // Windows 95/98/ME/NT/2000/XP
+ // features:
+ // very accurate (CPU cycles)
+ // known issues:
+ // does not necessarily match realtime too well (tends to get faster and faster in win98)
+ // wraps around occasionally on some platforms (depends on CPU speed and probably other unknown factors)
+ double timescale;
+ LARGE_INTEGER PerformanceFreq;
+ LARGE_INTEGER PerformanceCount;
+
+ if (!QueryPerformanceFrequency (&PerformanceFreq))
+ Sys_Error ("No hardware timer available");
+ QueryPerformanceCounter (&PerformanceCount);
+
+ #ifdef __BORLANDC__
+ timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
+ newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale;
+ #else
+ timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
+ newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale;
+ #endif
+ }
+#else
struct timeval tp;
- struct timezone tzp;
-
- gettimeofday(&tp, &tzp);
-
- newtime = (double) ((unsigned long) tp.tv_sec) + tp.tv_usec/1000000.0;
+ gettimeofday(&tp, NULL);
+ newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0;
+#endif
if (first)
{
}
if (newtime < oldtime)
- Con_Printf("Sys_DoubleTime: time running backwards??\n");
+ {
+ // warn if it's significant
+ if (newtime - oldtime < -0.01)
+ Con_Printf("Sys_DoubleTime: time stepped backwards (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
+ }
else
curtime += newtime - oldtime;
oldtime = newtime;
return curtime;
}
-// =======================================================================
-// Sleeps for microseconds
-// =======================================================================
-
-static volatile int oktogo;
-
-void alarm_handler(int x)
-{
- oktogo=1;
-}
-
-void floating_point_exception_handler(int whatever)
-{
- signal(SIGFPE, floating_point_exception_handler);
-}
-
char *Sys_ConsoleInput(void)
{
- static char text[256];
- int len;
- fd_set fdset;
- struct timeval timeout;
-
if (cls.state == ca_dedicated)
{
+ static char text[256];
+ int len;
+#ifdef WIN32
+ int c;
+
+ // read a line out
+ while (_kbhit ())
+ {
+ c = _getch ();
+ putch (c);
+ if (c == '\r')
+ {
+ text[len] = 0;
+ putch ('\n');
+ len = 0;
+ return text;
+ }
+ if (c == 8)
+ {
+ if (len)
+ {
+ putch (' ');
+ putch (c);
+ len--;
+ text[len] = 0;
+ }
+ continue;
+ }
+ text[len] = c;
+ len++;
+ text[len] = 0;
+ if (len == sizeof (text))
+ len = 0;
+ }
+#else
+ fd_set fdset;
+ struct timeval timeout;
FD_ZERO(&fdset);
FD_SET(0, &fdset); // stdin
timeout.tv_sec = 0;
timeout.tv_usec = 0;
- if (select (1, &fdset, NULL, NULL, &timeout) == -1 || !FD_ISSET(0, &fdset))
- return NULL;
-
- len = read (0, text, sizeof(text));
- if (len < 1)
- return NULL;
- text[len-1] = 0; // rip off the /n and terminate
-
- return text;
+ if (select (1, &fdset, NULL, NULL, &timeout) != -1 && FD_ISSET(0, &fdset))
+ {
+ len = read (0, text, sizeof(text));
+ if (len >= 1)
+ {
+ // rip off the \n and terminate
+ text[len-1] = 0;
+ return text;
+ }
+ }
+#endif
}
return NULL;
}
void Sys_Sleep(void)
{
+#ifdef WIN32
+ Sleep (1);
+#else
usleep(1);
+#endif
}
-int main (int c, char **v)
+int main (int argc, const char **argv)
{
- double oldtime, newtime;
+ double frameoldtime, framenewtime;
signal(SIGFPE, SIG_IGN);
- memset(&host_parms, 0, sizeof(host_parms));
-
- COM_InitArgv(c, v);
- host_parms.argc = com_argc;
- host_parms.argv = com_argv;
-
- host_parms.basedir = basedir;
+ com_argc = argc;
+ com_argv = argv;
+#ifndef WIN32
fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
+#endif
Sys_Shared_EarlyInit();
Sys_Shared_LateInit();
- oldtime = Sys_DoubleTime () - 0.1;
+ frameoldtime = Sys_DoubleTime () - 0.1;
while (1)
{
// find time spent rendering last frame
- newtime = Sys_DoubleTime ();
+ framenewtime = Sys_DoubleTime ();
- Host_Frame (newtime - oldtime);
+ Host_Frame (framenewtime - frameoldtime);
- oldtime = newtime;
+ frameoldtime = framenewtime;
}
return 0;
}
projects / xonotic / darkplaces.git / blobdiff