+#include "quakedef.h"
#ifdef WIN32
+#include <io.h>
#include "conio.h"
#else
#include <unistd.h>
#include <fcntl.h>
#include <sys/time.h>
+#include <time.h>
#endif
#include <signal.h>
-#include "quakedef.h"
-
#include <SDL.h>
-#ifdef WIN32
-cvar_t sys_usetimegettime = {CVAR_SAVE, "sys_usetimegettime", "1"};
-#endif
+cvar_t sys_usenoclockbutbenchmark = {CVAR_SAVE, "sys_usenoclockbutbenchmark", "0", "don't use ANY real timing, and simulate a clock (for benchmarking); the game then runs as fast as possible. Run a QC mod with bots that does some stuff, then does a quit at the end, to benchmark a server. NEVER do this on a public server."};
+static unsigned long benchmark_time;
+#ifndef WIN32
+# ifndef MACOSX
+cvar_t sys_useclockgettime = {CVAR_SAVE, "sys_useclockgettime", "0", "use POSIX clock_gettime function (which has issues if the system clock speed is far off, as it can't get fixed by NTP) for timing rather than gettimeofday (which has issues if the system time is stepped by ntpdate, or apparently on some Xen installations)"};
+# endif
+cvar_t sys_usegettimeofday = {CVAR_SAVE, "sys_usegettimeofday", "0", "use gettimeofday (which has issues if the system time is stepped by ntpdate, or apparently on some Xen installations) which has microsecond precision rather than SDL_GetTicks (which has only millisecond precision)"};
+#endif
// =======================================================================
// General routines
// =======================================================================
-void Sys_Quit (void)
+void Sys_Shutdown (void)
{
- Host_Shutdown();
#ifndef WIN32
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
#endif
fflush(stdout);
- exit(0);
+ SDL_Quit();
}
+
void Sys_Error (const char *error, ...)
{
va_list argptr;
- char string[1024];
+ char string[MAX_INPUTLINE];
// change stdin to non blocking
#ifndef WIN32
#endif
va_start (argptr,error);
- vsnprintf (string, sizeof (string), error, argptr);
+ dpvsnprintf (string, sizeof (string), error, argptr);
va_end (argptr);
- fprintf(stderr, "Error: %s\n", string);
+
+ Con_Printf ("Quake Error: %s\n", string);
Host_Shutdown ();
exit (1);
}
-void Sys_Print(const char *text)
+void Sys_PrintToTerminal(const char *text)
{
- printf("%s", text);
+#ifndef WIN32
+ // BUG: for some reason, NDELAY also affects stdout (1) when used on stdin (0).
+ int origflags = fcntl (1, F_GETFL, 0);
+ fcntl (1, F_SETFL, origflags & ~FNDELAY);
+#else
+#define write _write
+#endif
+ while(*text)
+ {
+ int written = (int)write(1, text, (int)strlen(text));
+ if(written <= 0)
+ break; // sorry, I cannot do anything about this error - without an output
+ text += written;
+ }
+#ifndef WIN32
+ fcntl (1, F_SETFL, origflags);
+#endif
+ //fprintf(stdout, "%s", text);
}
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)
+ if(sys_usenoclockbutbenchmark.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;
+ benchmark_time += 1;
+ return ((double) benchmark_time) / 1e6;
}
- else
+ // use higher precision timers on some platforms
+#ifndef WIN32
+# ifndef MACOSX
+ if (sys_useclockgettime.integer)
{
- // 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
+ struct timespec ts;
+# ifdef SUNOS
+ clock_gettime(CLOCK_HIGHRES, &ts);
+# else
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+# endif
+ newtime = (double) ts.tv_sec + ts.tv_nsec / 1000000000.0;
}
-#else
- struct timeval tp;
- gettimeofday(&tp, NULL);
- newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0;
+ else if (sys_usegettimeofday.integer)
+# endif
+ {
+ struct timeval tp;
+ gettimeofday(&tp, NULL);
+ newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0;
+ }
+ else
#endif
+ {
+ newtime = (double) SDL_GetTicks() / 1000.0;
+ }
+
if (first)
{
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 if (newtime > oldtime + 1800)
+ {
+ Con_Printf("Sys_DoubleTime: time stepped forward (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
+ }
else
curtime += newtime - oldtime;
oldtime = newtime;
{
if (cls.state == ca_dedicated)
{
- static char text[256];
+ static char text[MAX_INPUTLINE];
int len = 0;
#ifdef WIN32
int c;
while (_kbhit ())
{
c = _getch ();
- putch (c);
+ _putch (c);
if (c == '\r')
{
text[len] = 0;
- putch ('\n');
+ _putch ('\n');
len = 0;
return text;
}
{
if (len)
{
- putch (' ');
- putch (c);
+ _putch (' ');
+ _putch (c);
len--;
text[len] = 0;
}
return NULL;
}
-void Sys_Sleep(void)
+void Sys_Sleep(int microseconds)
+{
+ if(sys_usenoclockbutbenchmark.integer)
+ {
+ benchmark_time += microseconds;
+ return;
+ }
+ SDL_Delay(microseconds / 1000);
+}
+
+char *Sys_GetClipboardData (void)
{
#ifdef WIN32
- Sleep (1);
+ char *data = NULL;
+ char *cliptext;
+
+ if (OpenClipboard (NULL) != 0)
+ {
+ HANDLE hClipboardData;
+
+ if ((hClipboardData = GetClipboardData (CF_TEXT)) != 0)
+ {
+ if ((cliptext = (char *)GlobalLock (hClipboardData)) != 0)
+ {
+ size_t allocsize;
+ allocsize = GlobalSize (hClipboardData) + 1;
+ data = (char *)Z_Malloc (allocsize);
+ strlcpy (data, cliptext, allocsize);
+ GlobalUnlock (hClipboardData);
+ }
+ }
+ CloseClipboard ();
+ }
+ return data;
#else
- usleep(1);
+ return NULL;
#endif
}
-int SDL_main (int argc, char *argv[])
+void Sys_InitConsole (void)
{
- double frameoldtime, framenewtime;
+}
+
+void Sys_Init_Commands (void)
+{
+ Cvar_RegisterVariable(&sys_usenoclockbutbenchmark);
+#ifndef WIN32
+# ifndef MACOSX
+ Cvar_RegisterVariable(&sys_useclockgettime);
+# endif
+ Cvar_RegisterVariable(&sys_usegettimeofday);
+#endif
+}
+int main (int argc, char *argv[])
+{
signal(SIGFPE, SIG_IGN);
com_argc = argc;
- com_argv = argv;
+ com_argv = (const char **)argv;
#ifndef WIN32
fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
#endif
- Sys_Shared_EarlyInit();
+ // we don't know which systems we'll want to init, yet...
+ SDL_Init(0);
- Host_Init();
+ Host_Main();
- Sys_Shared_LateInit();
-
- frameoldtime = Sys_DoubleTime () - 0.1;
- while (1)
- {
- // find time spent rendering last frame
- framenewtime = Sys_DoubleTime ();
-
- Host_Frame (framenewtime - frameoldtime);
-
- frameoldtime = framenewtime;
- }
return 0;
}
projects / xonotic / darkplaces.git / blobdiff