From f9158592e1478b2013afc7041d9ed041cf2d2f4a Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Mon, 13 Jan 2014 19:47:58 +1000
Subject: Update Irrlicht to 1.8.1.  Include actual change markers this time. 
 lol

---
 libraries/irrlicht-1.8.1/source/Irrlicht/os.h | 131 ++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 libraries/irrlicht-1.8.1/source/Irrlicht/os.h

(limited to 'libraries/irrlicht-1.8.1/source/Irrlicht/os.h')

diff --git a/libraries/irrlicht-1.8.1/source/Irrlicht/os.h b/libraries/irrlicht-1.8.1/source/Irrlicht/os.h
new file mode 100644
index 0000000..07059ca
--- /dev/null
+++ b/libraries/irrlicht-1.8.1/source/Irrlicht/os.h
@@ -0,0 +1,131 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#ifndef __IRR_OS_H_INCLUDED__
+#define __IRR_OS_H_INCLUDED__
+
+#include "IrrCompileConfig.h" // for endian check
+#include "irrTypes.h"
+#include "irrString.h"
+#include "path.h"
+#include "ILogger.h"
+#include "ITimer.h"
+
+namespace irr
+{
+
+namespace os
+{
+	class Byteswap
+	{
+	public:
+		static u16 byteswap(u16 num);
+		static s16 byteswap(s16 num);
+		static u32 byteswap(u32 num);
+		static s32 byteswap(s32 num);
+		static f32 byteswap(f32 num);
+		// prevent accidental swapping of chars
+		static u8  byteswap(u8  num);
+		static c8  byteswap(c8  num);
+	};
+
+	class Printer
+	{
+	public:
+		// prints out a string to the console out stdout or debug log or whatever
+		static void print(const c8* message);
+		static void log(const c8* message, ELOG_LEVEL ll = ELL_INFORMATION);
+		static void log(const wchar_t* message, ELOG_LEVEL ll = ELL_INFORMATION);
+		static void log(const c8* message, const c8* hint, ELOG_LEVEL ll = ELL_INFORMATION);
+		static void log(const c8* message, const io::path& hint, ELOG_LEVEL ll = ELL_INFORMATION);
+		static ILogger* Logger;
+	};
+
+
+	// mixed linear congruential generator (MLCG)
+	// numbers chosen according to L'Ecuyer, Commun. ACM 31 (1988) 742
+	// period is somewhere around m-1
+	class Randomizer
+	{
+	public:
+
+		//! resets the randomizer
+		static void reset(s32 value=0x0f0f0f0f);
+
+		//! generates a pseudo random number in the range 0..randMax()
+		static s32 rand();
+
+		//! generates a pseudo random number in the range 0..1
+		static f32 frand();
+
+		//! get maxmimum number generated by rand()
+		static s32 randMax();
+
+	private:
+
+		static s32 seed;
+		static const s32 m = 2147483399;	// a non-Mersenne prime
+		static const s32 a = 40692;			// another spectral success story
+		static const s32 q = m/a;
+		static const s32 r = m%a;			// again less than q
+		static const s32 rMax = m-1;
+	};
+
+
+
+
+	class Timer
+	{
+	public:
+
+		//! returns the current time in milliseconds
+		static u32 getTime();
+
+		//! get current time and date in calendar form
+		static ITimer::RealTimeDate getRealTimeAndDate();
+
+		//! initializes the real timer
+		static void initTimer(bool usePerformanceTimer=true);
+
+		//! sets the current virtual (game) time
+		static void setTime(u32 time);
+
+		//! stops the virtual (game) timer
+		static void stopTimer();
+
+		//! starts the game timer
+		static void startTimer();
+
+		//! sets the speed of the virtual timer
+		static void setSpeed(f32 speed);
+
+		//! gets the speed of the virtual timer
+		static f32 getSpeed();
+
+		//! returns if the timer currently is stopped
+		static bool isStopped();
+
+		//! makes the virtual timer update the time value based on the real time
+		static void tick();
+
+		//! returns the current real time in milliseconds
+		static u32 getRealTime();
+
+	private:
+
+		static void initVirtualTimer();
+
+		static f32 VirtualTimerSpeed;
+		static s32 VirtualTimerStopCounter;
+		static u32 StartRealTime;
+		static u32 LastVirtualTime;
+		static u32 StaticTime;
+	};
+
+} // end namespace os
+} // end namespace irr
+
+
+#endif
+
-- 
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