X-Git-Url: http://git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=sys_linux.c;h=24ea6482d515ced9dc5262055acfb2bd64e5990e;hp=1d77ae238524bef9dfec71ef94344f65629b42ba;hb=3fb59eda688a97e6ddd819e67ca0b37a2095b61c;hpb=f7e37f88d839aaf88b304e2cfc000bf10ca9ed83 diff --git a/sys_linux.c b/sys_linux.c index 1d77ae23..24ea6482 100644 --- a/sys_linux.c +++ b/sys_linux.c @@ -1,49 +1,43 @@ #ifdef WIN32 +#include +#include +#include #include "conio.h" #else +#include #include #include -#include #endif #include #include "quakedef.h" - -#ifdef WIN32 -cvar_t sys_usetimegettime = {CVAR_SAVE, "sys_usetimegettime", "1"}; -#endif - - +sys_t sys; // ======================================================================= // General routines // ======================================================================= void Sys_Shutdown (void) { -#ifndef WIN32 - fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY); -#endif + fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~O_NDELAY); fflush(stdout); } void Sys_Error (const char *error, ...) { va_list argptr; - char string[1024]; + char string[MAX_INPUTLINE]; // change stdin to non blocking -#ifndef WIN32 - fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY); -#endif + fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~O_NDELAY); va_start (argptr,error); dpvsnprintf (string, sizeof (string), error, argptr); va_end (argptr); - Con_Printf ("Quake Error: %s\n", string); + Con_Printf(CON_ERROR "Engine Error: %s\n", string); Host_Shutdown (); exit (1); @@ -51,97 +45,33 @@ void Sys_Error (const char *error, ...) void Sys_PrintToTerminal(const char *text) { - 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.outfd < 0) + return; + // BUG: for some reason, NDELAY also affects stdout (1) when used on stdin (0). + // this is because both go to /dev/tty by default! { - 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)) + int origflags = fcntl (sys.outfd, F_GETFL, 0); + fcntl (sys.outfd, F_SETFL, origflags & ~O_NDELAY); +#ifdef WIN32 +#define write _write +#endif + while(*text) { - Con_Printf ("No hardware timer available\n"); - // fall back to timeGetTime - Cvar_SetValueQuick(&sys_usetimegettime, true); - return Sys_DoubleTime(); + fs_offset_t written = (fs_offset_t)write(sys.outfd, text, (int)strlen(text)); + if(written <= 0) + break; // sorry, I cannot do anything about this error - without an output + text += written; } - 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; - gettimeofday(&tp, NULL); - newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0; -#endif - - if (first) - { - first = false; - oldtime = newtime; + fcntl (sys.outfd, F_SETFL, origflags); } - - 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 - curtime += newtime - oldtime; - oldtime = newtime; - - return curtime; + //fprintf(stdout, "%s", text); } char *Sys_ConsoleInput(void) { - if (cls.state == ca_dedicated) + //if (cls.state == ca_dedicated) { - static char text[256]; + static char text[MAX_INPUTLINE]; static unsigned int len = 0; #ifdef WIN32 int c; @@ -153,7 +83,7 @@ char *Sys_ConsoleInput(void) if (c == '\r') { text[len] = '\0'; - putch ('\n'); + _putch ('\n'); len = 0; return text; } @@ -161,16 +91,16 @@ char *Sys_ConsoleInput(void) { if (len) { - putch (c); - putch (' '); - putch (c); + _putch (c); + _putch (' '); + _putch (c); len--; } continue; } if (len < sizeof (text) - 1) { - putch (c); + _putch (c); text[len] = c; len++; } @@ -184,11 +114,14 @@ char *Sys_ConsoleInput(void) timeout.tv_usec = 0; if (select (1, &fdset, NULL, NULL, &timeout) != -1 && FD_ISSET(0, &fdset)) { - len = read (0, text, sizeof(text)); + len = read (0, text, sizeof(text) - 1); if (len >= 1) { // rip off the \n and terminate - text[len-1] = 0; + // div0: WHY? console code can deal with \n just fine + // this caused problems with pasting stuff into a terminal window + // so, not ripping off the \n, but STILL keeping a NUL terminator + text[len] = 0; return text; } } @@ -197,17 +130,6 @@ char *Sys_ConsoleInput(void) return NULL; } -void Sys_Sleep(int milliseconds) -{ - if (milliseconds < 1) - milliseconds = 1; -#ifdef WIN32 - Sleep(milliseconds); -#else - usleep(milliseconds * 1000); -#endif -} - char *Sys_GetClipboardData (void) { return NULL; @@ -217,34 +139,37 @@ void Sys_InitConsole (void) { } -void Sys_Init_Commands (void) -{ -} - int main (int argc, char **argv) { - double frameoldtime, framenewtime; - signal(SIGFPE, SIG_IGN); + sys.selffd = -1; + sys.argc = argc; + sys.argv = (const char **)argv; + Sys_ProvideSelfFD(); + + // COMMANDLINEOPTION: sdl: -noterminal disables console output on stdout + if(COM_CheckParm("-noterminal")) + sys.outfd = -1; + // COMMANDLINEOPTION: sdl: -stderr moves console output to stderr + else if(COM_CheckParm("-stderr")) + sys.outfd = 2; + else + sys.outfd = 1; - com_argc = argc; - com_argv = (const char **)argv; - -#ifndef WIN32 - fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY); -#endif - - Host_Init(); + fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | O_NDELAY); - frameoldtime = Sys_DoubleTime () - 0.1; - while (1) - { - // find time spent rendering last frame - framenewtime = Sys_DoubleTime (); + Host_Main(); - Host_Frame (framenewtime - frameoldtime); + return 0; +} - frameoldtime = framenewtime; - } +qboolean sys_supportsdlgetticks = false; +unsigned int Sys_SDL_GetTicks (void) +{ + Sys_Error("Called Sys_SDL_GetTicks on non-SDL target"); return 0; } +void Sys_SDL_Delay (unsigned int milliseconds) +{ + Sys_Error("Called Sys_SDL_Delay on non-SDL target"); +}