DOOM!!!!

src/kernel/userland/doom/i_timer.c

@@ -0,0 +1,96 @@
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005-2014 Simon Howard
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// DESCRIPTION:
+//      Timer functions.
+//
+
+#include "i_timer.h"
+#include "doomtype.h"
+
+#include "doomgeneric.h"
+
+#include <stdarg.h>
+
+//#include <sys/time.h>
+//#include <unistd.h>
+
+
+//
+// I_GetTime
+// returns time in 1/35th second tics
+//
+
+static uint32_t basetime = 0;
+
+
+int I_GetTicks(void)
+{
+	return DG_GetTicksMs();
+}
+
+int  I_GetTime (void)
+{
+    uint32_t ticks;
+
+    ticks = I_GetTicks();
+
+    if (basetime == 0)
+        basetime = ticks;
+
+    ticks -= basetime;
+
+    return (ticks * TICRATE) / 1000;
+}
+
+
+//
+// Same as I_GetTime, but returns time in milliseconds
+//
+
+int I_GetTimeMS(void)
+{
+    uint32_t ticks;
+
+    ticks = I_GetTicks();
+
+    if (basetime == 0)
+        basetime = ticks;
+
+    return ticks - basetime;
+}
+
+// Sleep for a specified number of ms
+
+void I_Sleep(int ms)
+{
+    //SDL_Delay(ms);
+    //usleep (ms * 1000);
+
+	DG_SleepMs(ms);
+}
+
+void I_WaitVBL(int count)
+{
+    //I_Sleep((count * 1000) / 70);
+}
+
+
+void I_InitTimer(void)
+{
+    // initialize timer
+
+    //SDL_Init(SDL_INIT_TIMER);
+}
+