]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sys_linux.c
Add GL_ExtensionSupported in vid_null.c because vid_shared.c relies on
[xonotic/darkplaces.git] / sys_linux.c
index f3db25efac8a6dc642ec3f6ffb1b6246a351c4bd..ac2ea61636c7087eb6d6c59be09c039bc9eeebba 100644 (file)
@@ -1,29 +1,25 @@
 
 #ifdef WIN32
+#include <windows.h>
+#include <mmsystem.h>
+#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"
 
-
-#ifdef WIN32
-cvar_t sys_usetimegettime = {CVAR_SAVE, "sys_usetimegettime", "1"};
-#endif
-
-
-
 // =======================================================================
 // General routines
 // =======================================================================
 void Sys_Shutdown (void)
 {
-#ifndef WIN32
+#ifdef FNDELAY
        fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
 #endif
        fflush(stdout);
@@ -32,10 +28,10 @@ void Sys_Shutdown (void)
 void Sys_Error (const char *error, ...)
 {
        va_list argptr;
-       char string[1024];
+       char string[MAX_INPUTLINE];
 
 // change stdin to non blocking
-#ifndef WIN32
+#ifdef FNDELAY
        fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
 #endif
 
@@ -49,95 +45,41 @@ void Sys_Error (const char *error, ...)
        exit (1);
 }
 
+static int outfd = 1;
 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(outfd < 0)
+               return;
+#ifdef FNDELAY
+       // 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)
+               int origflags = fcntl (outfd, F_GETFL, 0);
+               fcntl (outfd, F_SETFL, origflags & ~FNDELAY);
+#endif
+#ifdef WIN32
+#define write _write
+#endif
+               while(*text)
                {
-                       timeBeginPeriod (1);
-                       firsttimegettime = false;
+                       fs_offset_t written = (fs_offset_t)write(outfd, text, (int)strlen(text));
+                       if(written <= 0)
+                               break; // sorry, I cannot do anything about this error - without an output
+                       text += written;
                }
-
-               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
+#ifdef FNDELAY
+               fcntl (outfd, F_SETFL, origflags);
        }
-#else
-       struct timeval tp;
-       gettimeofday(&tp, NULL);
-       newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0;
 #endif
-
-       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
-               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 int len = 0;
+               static char text[MAX_INPUTLINE];
+               static unsigned int len = 0;
 #ifdef WIN32
                int c;
 
@@ -148,7 +90,7 @@ char *Sys_ConsoleInput(void)
                        if (c == '\r')
                        {
                                text[len] = '\0';
-                               putch ('\n');
+                               _putch ('\n');
                                len = 0;
                                return text;
                        }
@@ -156,16 +98,16 @@ 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++;
                        }
@@ -179,11 +121,14 @@ 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;
                        }
                }
@@ -192,17 +137,6 @@ 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;
@@ -212,34 +146,39 @@ void Sys_InitConsole (void)
 {
 }
 
-void Sys_Init_Commands (void)
-{
-}
-
 int main (int argc, char **argv)
 {
-       double frameoldtime, framenewtime;
-
        signal(SIGFPE, SIG_IGN);
 
        com_argc = argc;
        com_argv = (const char **)argv;
+       Sys_ProvideSelfFD();
+
+       // COMMANDLINEOPTION: sdl: -noterminal disables console output on stdout
+       if(COM_CheckParm("-noterminal"))
+               outfd = -1;
+       // COMMANDLINEOPTION: sdl: -stderr moves console output to stderr
+       else if(COM_CheckParm("-stderr"))
+               outfd = 2;
+       else
+               outfd = 1;
 
-#ifndef WIN32
+#ifdef FNDELAY
        fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
 #endif
 
-       Host_Init();
+       Host_Main();
 
-       frameoldtime = Sys_DoubleTime () - 0.1;
-       while (1)
-       {
-               // find time spent rendering last frame
-               framenewtime = Sys_DoubleTime ();
-
-               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");
+}