*/
// sys_win.c -- Win32 system interface code
+#define WIN32_USETIMEGETTIME 0
+
#include "quakedef.h"
#include "winquake.h"
#include "errno.h"
#include "conproc.h"
#include "direct.h"
-// LordHavoc: raised min to 24mb (was 8.5mb)
-#define MINIMUM_WIN_MEMORY 0x1800000
-// LordHavoc: raised max to 24mb (was 16mb)
-#define MAXIMUM_WIN_MEMORY 0x1800000
-
#define CONSOLE_ERROR_TIMEOUT 60.0 // # of seconds to wait on Sys_Error running
// dedicated before exiting
#define PAUSE_SLEEP 50 // sleep time on pause or minimization
int starttime;
qboolean ActiveApp, Minimized;
-qboolean WinNT;
-static double pfreq;
-static double curtime = 0.0;
-static double lastcurtime = 0.0;
-static int lowshift;
qboolean isDedicated;
static qboolean sc_return_on_enter = false;
HANDLE hinput, houtput;
static HANDLE heventParent;
static HANDLE heventChild;
-void Sys_InitFloatTime (void);
-
volatile int sys_checksum;
Sys_PageIn
================
*/
+/*
void Sys_PageIn (void *ptr, int size)
{
byte *x;
}
}
}
+*/
/*
int Sys_FileTime (char *path)
{
FILE *f;
- int retval;
-
+
f = fopen(path, "rb");
-
if (f)
{
fclose(f);
- retval = 1;
- }
- else
- {
- retval = -1;
+ return 1;
}
- return retval;
+ return -1;
}
void Sys_mkdir (char *path)
===============================================================================
*/
-/*
-================
-Sys_MakeCodeWriteable
-================
-*/
-void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
-{
- DWORD flOldProtect;
-
- if (!VirtualProtect((LPVOID)startaddr, length, PAGE_READWRITE, &flOldProtect))
- Sys_Error("Protection change failed\n");
-}
-
-
-/*
-================
-Sys_Init
-================
-*/
-void Sys_Init (void)
-{
- LARGE_INTEGER PerformanceFreq;
- unsigned int lowpart, highpart;
- OSVERSIONINFO vinfo;
-
- if (!QueryPerformanceFrequency (&PerformanceFreq))
- Sys_Error ("No hardware timer available");
-
-// get 32 out of the 64 time bits such that we have around
-// 1 microsecond resolution
- lowpart = (unsigned int)PerformanceFreq.LowPart;
- highpart = (unsigned int)PerformanceFreq.HighPart;
- lowshift = 0;
-
- while (highpart || (lowpart > 2000000.0))
- {
- lowshift++;
- lowpart >>= 1;
- lowpart |= (highpart & 1) << 31;
- highpart >>= 1;
- }
-
- pfreq = 1.0 / (double)lowpart;
-
- Sys_InitFloatTime ();
-
- vinfo.dwOSVersionInfoSize = sizeof(vinfo);
-
- if (!GetVersionEx (&vinfo))
- Sys_Error ("Couldn't get OS info");
-
- if ((vinfo.dwMajorVersion < 4) ||
- (vinfo.dwPlatformId == VER_PLATFORM_WIN32s))
- {
- Sys_Error ("WinQuake requires at least Win95 or NT 4.0");
- }
-
- if (vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT)
- WinNT = true;
- else
- WinNT = false;
-}
-
-
void Sys_Error (char *error, ...)
{
va_list argptr;
WriteFile (houtput, text4, strlen (text4), &dummy, NULL);
- starttime = Sys_FloatTime ();
+ starttime = Sys_DoubleTime ();
sc_return_on_enter = true; // so Enter will get us out of here
while (!Sys_ConsoleInput () &&
- ((Sys_FloatTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
+ ((Sys_DoubleTime () - starttime) < CONSOLE_ERROR_TIMEOUT))
{
}
}
/*
================
-Sys_FloatTime
+Sys_DoubleTime
================
*/
-double Sys_FloatTime (void)
+double Sys_DoubleTime (void)
{
- static int sametimecount;
- static unsigned int oldtime;
- static int first = 1;
- LARGE_INTEGER PerformanceCount;
- unsigned int temp, t2;
- double time;
-
- QueryPerformanceCounter (&PerformanceCount);
-
- temp = ((unsigned int)PerformanceCount.LowPart >> lowshift) |
- ((unsigned int)PerformanceCount.HighPart << (32 - lowshift));
+ // 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 WIN32_USETIMEGETTIME
+ // timeGetTime
+ // platform:
+ // Windows 95/98/ME/NT/2000
+ // features:
+ // reasonable accuracy (millisecond)
+ // issues:
+ // none known
+ static int first = true;
+ static double oldtime = 0.0, basetime = 0.0, old = 0.0;
+ double newtime, now;
+
+ now = (double) timeGetTime () - basetime;
if (first)
{
- oldtime = temp;
- first = 0;
+ first = false;
+ basetime = now;
+ now = 0;
}
- else
- {
- // check for turnover or backward time
- if ((temp <= oldtime) && ((oldtime - temp) < 0x10000000))
- {
- oldtime = temp; // so we can't get stuck
- }
- else
- {
- t2 = temp - oldtime;
-
- time = (double)t2 * pfreq;
- oldtime = temp;
-
- curtime += time;
-
- if (curtime == lastcurtime)
- {
- sametimecount++;
-
- if (sametimecount > 100000)
- {
- curtime += 1.0;
- sametimecount = 0;
- }
- }
- else
- {
- sametimecount = 0;
- }
- lastcurtime = curtime;
- }
+ if (now < old)
+ {
+ // wrapped
+ basetime -= (65536.0 * 65536.0);
+ now += (65536.0 * 65536.0);
}
+ old = now;
+
+ newtime = now / 1000.0;
+
+ if (newtime < oldtime)
+ Sys_Error("Sys_DoubleTime: time running backwards??\n");
+
+ oldtime = newtime;
+
+ return newtime;
+#else
+ // QueryPerformanceCounter
+ // platform:
+ // Windows 95/98/ME/NT/2000
+ // features:
+ // very accurate (CPU cycles)
+ // known issues:
+ // does not necessarily match realtime too well (tends to get faster and faster in win98)
+ static int first = true;
+ static double oldtime = 0.0, basetime = 0.0, timescale = 0.0;
+ double newtime;
+ LARGE_INTEGER PerformanceFreq;
+ LARGE_INTEGER PerformanceCount;
- return curtime;
-}
-
-
-/*
-================
-Sys_InitFloatTime
-================
-*/
-void Sys_InitFloatTime (void)
-{
- int j;
+ if (first)
+ {
+ if (!QueryPerformanceFrequency (&PerformanceFreq))
+ Sys_Error ("No hardware timer available");
+
+#ifdef __BORLANDC__
+ timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
+#else
+ timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
+#endif
+ }
- Sys_FloatTime ();
+ QueryPerformanceCounter (&PerformanceCount);
- j = COM_CheckParm("-starttime");
+#ifdef __BORLANDC__
+ newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale - basetime;
+#else
+ newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale - basetime;
+#endif
- if (j)
- {
- curtime = (double) (atof(com_argv[j+1]));
- }
- else
+ if (first)
{
- curtime = 0.0;
+ first = false;
+ basetime = newtime;
+ newtime = 0;
}
- lastcurtime = curtime;
+ if (newtime < oldtime)
+ Sys_Error("Sys_DoubleTime: time running backwards??\n");
+
+ oldtime = newtime;
+
+ return newtime;
+#endif
}
void SleepUntilInput (int time)
{
- MsgWaitForMultipleObjects(1, &tevent, FALSE, time, QS_ALLINPUT);
+ MsgWaitForMultipleObjects(1, &tevent, false, time, QS_ALLINPUT);
}
int global_nCmdShow;
char *argv[MAX_NUM_ARGVS];
static char *empty_string = "";
-HWND hwnd_dialog;
-
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
- quakeparms_t parms;
double time, oldtime, newtime/*, timediff*/;
MEMORYSTATUS lpBuffer;
static char cwd[1024];
int t;
- RECT rect;
/* previous instances do not exist in Win32 */
if (hPrevInstance)
if (cwd[strlen(cwd)-1] == '/')
cwd[strlen(cwd)-1] = 0;
- parms.basedir = cwd;
- parms.cachedir = NULL;
+ memset(&host_parms, 0, sizeof(host_parms));
- parms.argc = 1;
+ host_parms.basedir = cwd;
+
+ host_parms.argc = 1;
argv[0] = empty_string;
- while (*lpCmdLine && (parms.argc < MAX_NUM_ARGVS))
+ while (*lpCmdLine && (host_parms.argc < MAX_NUM_ARGVS))
{
while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
lpCmdLine++;
if (*lpCmdLine)
{
- argv[parms.argc] = lpCmdLine;
- parms.argc++;
+ argv[host_parms.argc] = lpCmdLine;
+ host_parms.argc++;
while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
lpCmdLine++;
}
}
- parms.argv = argv;
+ host_parms.argv = argv;
- COM_InitArgv (parms.argc, parms.argv);
+ COM_InitArgv (host_parms.argc, host_parms.argv);
- parms.argc = com_argc;
- parms.argv = com_argv;
+ host_parms.argc = com_argc;
+ host_parms.argv = com_argv;
isDedicated = (COM_CheckParm ("-dedicated") != 0);
- if (!isDedicated)
- {
- hwnd_dialog = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, NULL);
-
- if (hwnd_dialog)
- {
- if (GetWindowRect (hwnd_dialog, &rect))
- {
- if (rect.left > (rect.top * 2))
- {
- SetWindowPos (hwnd_dialog, 0,
- (rect.left / 2) - ((rect.right - rect.left) / 2),
- rect.top, 0, 0,
- SWP_NOZORDER | SWP_NOSIZE);
- }
- }
-
- ShowWindow (hwnd_dialog, SW_SHOWDEFAULT);
- UpdateWindow (hwnd_dialog);
- SetForegroundWindow (hwnd_dialog);
- }
- }
-
// take the greater of all the available memory or half the total memory,
// but at least 8 Mb and no more than 16 Mb, unless they explicitly
// request otherwise
- parms.memsize = lpBuffer.dwAvailPhys;
-
- if (parms.memsize < MINIMUM_WIN_MEMORY)
- parms.memsize = MINIMUM_WIN_MEMORY;
-
- if (parms.memsize < (lpBuffer.dwTotalPhys >> 1))
- parms.memsize = lpBuffer.dwTotalPhys >> 1;
-
- if (parms.memsize > MAXIMUM_WIN_MEMORY)
- parms.memsize = MAXIMUM_WIN_MEMORY;
-
- if (COM_CheckParm ("-heapsize"))
- {
- t = COM_CheckParm("-heapsize") + 1;
+ /*
+ host_parms.memsize = lpBuffer.dwAvailPhys;
- if (t < com_argc)
- parms.memsize = atoi (com_argv[t]) * 1024;
- }
-
- if (COM_CheckParm ("-mem"))
- {
- t = COM_CheckParm("-mem") + 1;
-
- if (t < com_argc)
- parms.memsize = atoi (com_argv[t]) * 1048576;
- }
-
- if (COM_CheckParm ("-winmem"))
- {
- t = COM_CheckParm("-winmem") + 1;
+ if (host_parms.memsize < MINIMUM_WIN_MEMORY)
+ host_parms.memsize = MINIMUM_WIN_MEMORY;
- if (t < com_argc)
- parms.memsize = atoi (com_argv[t]) * 1048576;
- }
+ if (host_parms.memsize < (lpBuffer.dwTotalPhys >> 1))
+ host_parms.memsize = lpBuffer.dwTotalPhys >> 1;
- parms.membase = malloc (parms.memsize);
+ if (host_parms.memsize > MAXIMUM_WIN_MEMORY)
+ host_parms.memsize = MAXIMUM_WIN_MEMORY;
+ */
- if (!parms.membase)
- Sys_Error ("Not enough memory free; check disk space\n");
+// Sys_PageIn (parms.membase, parms.memsize);
- Sys_PageIn (parms.membase, parms.memsize);
-
- tevent = CreateEvent(NULL, FALSE, FALSE, NULL);
+ tevent = CreateEvent(NULL, false, false, NULL);
if (!tevent)
Sys_Error ("Couldn't create event");
InitConProc (hFile, heventParent, heventChild);
}
- Sys_Init ();
-
// because sound is off until we become active
S_BlockSound ();
+#if WIN32_USETIMEGETTIME
+ // make sure the timer is high precision, otherwise NT gets 18ms resolution
+ // LordHavoc:
+ // Windows 2000 Advanced Server (and possibly other versions)
+ // apparently have a broken timer, because it runs at more like 10x speed
+ // if this isn't used, heh
+ timeBeginPeriod (1);
+#endif
+
Sys_Printf ("Host_Init\n");
- Host_Init (&parms);
+ Host_Init ();
- oldtime = Sys_FloatTime ();
+ oldtime = Sys_DoubleTime ();
/* main window message loop */
while (1)
{
- if (isDedicated)
- {
- newtime = Sys_FloatTime ();
- time = newtime - oldtime;
-
- while (time < sys_ticrate.value )
- {
- Sys_Sleep();
- newtime = Sys_FloatTime ();
- time = newtime - oldtime;
- }
- }
- else
+ if (!isDedicated)
{
// yield the CPU for a little while when paused, minimized, or not the focus
if ((cl.paused && (!ActiveApp && !DDActive)) || Minimized)
{
SleepUntilInput (NOT_FOCUS_SLEEP);
}
- /*
- else if (!cls.timedemo && time < (timediff = 1.0 / maxfps.value))
- {
- newtime = Sys_FloatTime ();
- time = newtime - oldtime;
-
- while (time < timediff)
- {
- Sys_Sleep();
- newtime = Sys_FloatTime ();
- time = newtime - oldtime;
- }
- }
- */
- newtime = Sys_FloatTime ();
+ newtime = Sys_DoubleTime ();
time = newtime - oldtime;
}
}
/* return success of application */
- return TRUE;
+ return true;
}
projects / xonotic / darkplaces.git / blobdiff