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#include "quakedef.h"
#ifdef WIN32
#include <io.h>
#include "conio.h"
#else
#include <unistd.h>
#include <fcntl.h>
#include <sys/time.h>
#endif
#include <signal.h>
#include <SDL.h>
// =======================================================================
// General routines
// =======================================================================
void Sys_Shutdown (void)
{
#ifndef WIN32
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
#endif
fflush(stdout);
SDL_Quit();
}
void Sys_Error (const char *error, ...)
{
va_list argptr;
char string[MAX_INPUTLINE];
// change stdin to non blocking
#ifndef WIN32
fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
#endif
va_start (argptr,error);
dpvsnprintf (string, sizeof (string), error, argptr);
va_end (argptr);
Con_Printf ("Quake Error: %s\n", string);
Host_Shutdown ();
exit (1);
}
void Sys_PrintToTerminal(const char *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;
newtime = (double) SDL_GetTicks() / 1000.0;
if (first)
{
first = false;
oldtime = newtime;
}
if (newtime < oldtime)
{
// 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 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;
return curtime;
}
char *Sys_ConsoleInput(void)
{
if (cls.state == ca_dedicated)
{
static char text[MAX_INPUTLINE];
int len = 0;
#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))
{
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(int microseconds)
{
SDL_Delay(microseconds / 1000);
}
char *Sys_GetClipboardData (void)
{
#ifdef WIN32
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
return NULL;
#endif
}
void Sys_InitConsole (void)
{
}
void Sys_Init_Commands (void)
{
}
int main (int argc, char *argv[])
{
signal(SIGFPE, SIG_IGN);
com_argc = argc;
com_argv = (const char **)argv;
#ifndef WIN32
fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
#endif
// we don't know which systems we'll want to init, yet...
SDL_Init(0);
Host_Main();
return 0;
}
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