#include "quakedef.h"
-char *basedir = ".";
-#if CACHEENABLE
-char *cachedir = "/tmp";
-#endif
-
// =======================================================================
// General routines
// =======================================================================
-void Sys_DebugNumber(int y, int val)
-{
-}
-
void Sys_Quit (void)
{
Host_Shutdown();
- fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
+ fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
fflush(stdout);
exit(0);
}
-void Sys_Error (char *error, ...)
+void Sys_Error (const char *error, ...)
{
- va_list argptr;
- char string[1024];
+ va_list argptr;
+ char string[1024];
// change stdin to non blocking
- fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
-
- va_start (argptr,error);
- vsprintf (string,error,argptr);
- va_end (argptr);
+ fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
+
+ va_start (argptr,error);
+ vsprintf (string,error,argptr);
+ va_end (argptr);
fprintf(stderr, "Error: %s\n", string);
Host_Shutdown ();
exit (1);
-}
-
-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)
+void Sys_Warn (const char *warning, ...)
{
- return read (handle, dest, count);
-}
+ va_list argptr;
+ char string[1024];
-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_BINARY | O_CREAT | O_APPEND, 0666);
- fd = open(file, O_WRONLY | O_CREAT | O_APPEND, 0666);
- write(fd, data, strlen(data));
- close(fd);
+ va_start (argptr,warning);
+ vsprintf (string,warning,argptr);
+ va_end (argptr);
+ fprintf(stderr, "Warning: %s", string);
}
double Sys_DoubleTime (void)
{
static int first = true;
- static double oldtime = 0.0, basetime = 0.0;
+ static double oldtime = 0.0, curtime = 0.0;
double newtime;
struct timeval tp;
- struct timezone tzp;
- gettimeofday(&tp, &tzp);
+ gettimeofday(&tp, NULL);
- newtime = (double) ((unsigned long) tp.tv_sec) + tp.tv_usec/1000000.0 - basetime;
+ newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0;
if (first)
{
first = false;
- basetime = newtime;
- newtime = 0.0;
+ oldtime = newtime;
}
if (newtime < oldtime)
- Sys_Error("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 newtime;
+ return curtime;
}
// =======================================================================
void floating_point_exception_handler(int whatever)
{
-// Sys_Warn("floating point exception\n");
signal(SIGFPE, floating_point_exception_handler);
}
char *Sys_ConsoleInput(void)
{
- static char text[256];
- int len;
- fd_set fdset;
- struct timeval timeout;
+ static char text[256];
+ int len;
+ fd_set fdset;
+ struct timeval timeout;
- if (cls.state == ca_dedicated) {
+ if (cls.state == ca_dedicated)
+ {
FD_ZERO(&fdset);
FD_SET(0, &fdset); // stdin
timeout.tv_sec = 0;
usleep(1);
}
-int main (int c, char **v)
+int main (int argc, const char **argv)
{
+ double frameoldtime, framenewtime;
- double oldtime, newtime;
-
-// static char cwd[1024];
-
-// signal(SIGFPE, floating_point_exception_handler);
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;
fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
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;
}