mirror of
https://github.com/minetest/irrlicht.git
synced 2024-09-07 05:10:19 +02:00
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6000 dfc29bdd-3216-0410-991c-e03cc46cb475
354 lines
8.3 KiB
C++
354 lines
8.3 KiB
C++
// 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
|
|
|
|
#include "os.h"
|
|
#include "irrString.h"
|
|
#include "IrrCompileConfig.h"
|
|
#include "irrMath.h"
|
|
|
|
#if defined(_IRR_COMPILE_WITH_SDL_DEVICE_)
|
|
#include <SDL/SDL_endian.h>
|
|
#define bswap_16(X) SDL_Swap16(X)
|
|
#define bswap_32(X) SDL_Swap32(X)
|
|
#elif defined(_IRR_WINDOWS_API_) && defined(_MSC_VER) && (_MSC_VER > 1298)
|
|
#include <stdlib.h>
|
|
#define bswap_16(X) _byteswap_ushort(X)
|
|
#define bswap_32(X) _byteswap_ulong(X)
|
|
#if (_MSC_VER >= 1400)
|
|
#define localtime _localtime_s
|
|
#endif
|
|
#elif defined(_IRR_OSX_PLATFORM_)
|
|
#include <libkern/OSByteOrder.h>
|
|
#define bswap_16(X) OSReadSwapInt16(&X,0)
|
|
#define bswap_32(X) OSReadSwapInt32(&X,0)
|
|
#elif defined(__FreeBSD__) || defined(__OpenBSD__)
|
|
#include <sys/endian.h>
|
|
#define bswap_16(X) bswap16(X)
|
|
#define bswap_32(X) bswap32(X)
|
|
#elif !defined(_IRR_SOLARIS_PLATFORM_) && !defined(__PPC__) && !defined(_IRR_WINDOWS_API_)
|
|
#include <byteswap.h>
|
|
#else
|
|
#define bswap_16(X) ((((X)&0xFF) << 8) | (((X)&0xFF00) >> 8))
|
|
#define bswap_32(X) ( (((X)&0x000000FF)<<24) | (((X)&0xFF000000) >> 24) | (((X)&0x0000FF00) << 8) | (((X) &0x00FF0000) >> 8))
|
|
#endif
|
|
|
|
namespace irr
|
|
{
|
|
namespace os
|
|
{
|
|
u16 Byteswap::byteswap(u16 num) {return bswap_16(num);}
|
|
s16 Byteswap::byteswap(s16 num) {return bswap_16(num);}
|
|
u32 Byteswap::byteswap(u32 num) {return bswap_32(num);}
|
|
s32 Byteswap::byteswap(s32 num) {return bswap_32(num);}
|
|
f32 Byteswap::byteswap(f32 num) {u32 tmp=IR(num); tmp=bswap_32(tmp); return (FR(tmp));}
|
|
// prevent accidental byte swapping of chars
|
|
u8 Byteswap::byteswap(u8 num) {return num;}
|
|
c8 Byteswap::byteswap(c8 num) {return num;}
|
|
}
|
|
}
|
|
|
|
#if defined(_IRR_WINDOWS_API_)
|
|
// ----------------------------------------------------------------
|
|
// Windows specific functions
|
|
// ----------------------------------------------------------------
|
|
|
|
#ifdef _IRR_XBOX_PLATFORM_
|
|
#include <xtl.h>
|
|
#else
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#include <windows.h>
|
|
#include <time.h>
|
|
#endif
|
|
|
|
namespace irr
|
|
{
|
|
namespace os
|
|
{
|
|
//! prints a debuginfo string
|
|
void Printer::print(const c8* message)
|
|
{
|
|
#if defined (_WIN32_WCE )
|
|
core::stringw tmp(message);
|
|
tmp += L"\n";
|
|
OutputDebugStringW(tmp.c_str());
|
|
#else
|
|
core::stringc tmp(message);
|
|
tmp += "\n";
|
|
OutputDebugStringA(tmp.c_str());
|
|
printf("%s", tmp.c_str());
|
|
#endif
|
|
}
|
|
|
|
static LARGE_INTEGER HighPerformanceFreq;
|
|
static BOOL HighPerformanceTimerSupport = FALSE;
|
|
static BOOL MultiCore = FALSE;
|
|
|
|
void Timer::initTimer(bool usePerformanceTimer)
|
|
{
|
|
#if !defined(_WIN32_WCE) && !defined (_IRR_XBOX_PLATFORM_)
|
|
// workaround for hires timer on multiple core systems, bios bugs result in bad hires timers.
|
|
SYSTEM_INFO sysinfo;
|
|
GetSystemInfo(&sysinfo);
|
|
MultiCore = (sysinfo.dwNumberOfProcessors > 1);
|
|
#endif
|
|
if (usePerformanceTimer)
|
|
HighPerformanceTimerSupport = QueryPerformanceFrequency(&HighPerformanceFreq);
|
|
else
|
|
HighPerformanceTimerSupport = FALSE;
|
|
initVirtualTimer();
|
|
}
|
|
|
|
u32 Timer::getRealTime()
|
|
{
|
|
if (HighPerformanceTimerSupport)
|
|
{
|
|
#if !defined(_WIN32_WCE) && !defined (_IRR_XBOX_PLATFORM_)
|
|
// Avoid potential timing inaccuracies across multiple cores by
|
|
// temporarily setting the affinity of this process to one core.
|
|
DWORD_PTR affinityMask=0;
|
|
if(MultiCore)
|
|
affinityMask = SetThreadAffinityMask(GetCurrentThread(), 1);
|
|
#endif
|
|
LARGE_INTEGER nTime;
|
|
BOOL queriedOK = QueryPerformanceCounter(&nTime);
|
|
|
|
#if !defined(_WIN32_WCE) && !defined (_IRR_XBOX_PLATFORM_)
|
|
// Restore the true affinity.
|
|
if(MultiCore)
|
|
(void)SetThreadAffinityMask(GetCurrentThread(), affinityMask);
|
|
#endif
|
|
if(queriedOK)
|
|
return u32((nTime.QuadPart) * 1000 / HighPerformanceFreq.QuadPart);
|
|
|
|
}
|
|
|
|
return GetTickCount();
|
|
}
|
|
|
|
} // end namespace os
|
|
|
|
|
|
#else
|
|
|
|
// ----------------------------------------------------------------
|
|
// linux/ansi version
|
|
// ----------------------------------------------------------------
|
|
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <sys/time.h>
|
|
|
|
namespace irr
|
|
{
|
|
namespace os
|
|
{
|
|
|
|
//! prints a debuginfo string
|
|
void Printer::print(const c8* message)
|
|
{
|
|
printf("%s\n", message);
|
|
}
|
|
|
|
void Timer::initTimer(bool usePerformanceTimer)
|
|
{
|
|
initVirtualTimer();
|
|
}
|
|
|
|
u32 Timer::getRealTime()
|
|
{
|
|
timeval tv;
|
|
gettimeofday(&tv, 0);
|
|
return (u32)(tv.tv_sec * 1000) + (tv.tv_usec / 1000);
|
|
}
|
|
} // end namespace os
|
|
|
|
#endif // end linux / windows
|
|
|
|
namespace os
|
|
{
|
|
// The platform independent implementation of the printer
|
|
ILogger* Printer::Logger = 0;
|
|
|
|
void Printer::log(const c8* message, ELOG_LEVEL ll)
|
|
{
|
|
if (Logger)
|
|
Logger->log(message, ll);
|
|
}
|
|
|
|
void Printer::log(const wchar_t* message, ELOG_LEVEL ll)
|
|
{
|
|
if (Logger)
|
|
Logger->log(message, ll);
|
|
}
|
|
|
|
void Printer::log(const c8* message, const c8* hint, ELOG_LEVEL ll)
|
|
{
|
|
if (Logger)
|
|
Logger->log(message, hint, ll);
|
|
}
|
|
|
|
void Printer::log(const c8* message, const io::path& hint, ELOG_LEVEL ll)
|
|
{
|
|
if (Logger)
|
|
Logger->log(message, hint.c_str(), ll);
|
|
}
|
|
|
|
// our Randomizer is not really os specific, so we
|
|
// code one for all, which should work on every platform the same,
|
|
// which is desirable.
|
|
|
|
s32 Randomizer::seed = 0x0f0f0f0f;
|
|
|
|
//! generates a pseudo random number
|
|
s32 Randomizer::rand()
|
|
{
|
|
// (a*seed)%m with Schrage's method
|
|
seed = a * (seed%q) - r* (seed/q);
|
|
if (seed<1)
|
|
seed += m;
|
|
|
|
return seed-1; // -1 because we want it to start at 0
|
|
}
|
|
|
|
//! generates a pseudo random number
|
|
f32 Randomizer::frand()
|
|
{
|
|
return rand()*(1.f/rMax);
|
|
}
|
|
|
|
s32 Randomizer::randMax()
|
|
{
|
|
return rMax;
|
|
}
|
|
|
|
//! resets the randomizer
|
|
void Randomizer::reset(s32 value)
|
|
{
|
|
if (value<0)
|
|
seed = value+m;
|
|
else if ( value == 0 || value == m)
|
|
seed = 1;
|
|
else
|
|
seed = value;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------
|
|
// virtual timer implementation
|
|
|
|
f32 Timer::VirtualTimerSpeed = 1.0f;
|
|
s32 Timer::VirtualTimerStopCounter = 0;
|
|
u32 Timer::LastVirtualTime = 0;
|
|
u32 Timer::StartRealTime = 0;
|
|
u32 Timer::StaticTime = 0;
|
|
|
|
//! Get real time and date in calendar form
|
|
ITimer::RealTimeDate Timer::getRealTimeAndDate()
|
|
{
|
|
time_t rawtime;
|
|
time(&rawtime);
|
|
|
|
struct tm * timeinfo;
|
|
timeinfo = localtime(&rawtime);
|
|
|
|
// init with all 0 to indicate error
|
|
ITimer::RealTimeDate date;
|
|
memset(&date, 0, sizeof(date));
|
|
// at least Windows returns NULL on some illegal dates
|
|
if (timeinfo)
|
|
{
|
|
// set useful values if succeeded
|
|
date.Hour=(u32)timeinfo->tm_hour;
|
|
date.Minute=(u32)timeinfo->tm_min;
|
|
date.Second=(u32)timeinfo->tm_sec;
|
|
date.Day=(u32)timeinfo->tm_mday;
|
|
date.Month=(u32)timeinfo->tm_mon+1;
|
|
date.Year=(u32)timeinfo->tm_year+1900;
|
|
date.Weekday=(ITimer::EWeekday)timeinfo->tm_wday;
|
|
date.Yearday=(u32)timeinfo->tm_yday+1;
|
|
date.IsDST=timeinfo->tm_isdst != 0;
|
|
}
|
|
return date;
|
|
}
|
|
|
|
//! returns current virtual time
|
|
u32 Timer::getTime()
|
|
{
|
|
if (isStopped())
|
|
return LastVirtualTime;
|
|
|
|
return LastVirtualTime + (u32)((StaticTime - StartRealTime) * VirtualTimerSpeed);
|
|
}
|
|
|
|
//! ticks, advances the virtual timer
|
|
void Timer::tick()
|
|
{
|
|
StaticTime = getRealTime();
|
|
}
|
|
|
|
//! sets the current virtual time
|
|
void Timer::setTime(u32 time)
|
|
{
|
|
StaticTime = getRealTime();
|
|
LastVirtualTime = time;
|
|
StartRealTime = StaticTime;
|
|
}
|
|
|
|
//! stops the virtual timer
|
|
void Timer::stopTimer()
|
|
{
|
|
if (!isStopped())
|
|
{
|
|
// stop the virtual timer
|
|
LastVirtualTime = getTime();
|
|
}
|
|
|
|
--VirtualTimerStopCounter;
|
|
}
|
|
|
|
//! starts the virtual timer
|
|
void Timer::startTimer()
|
|
{
|
|
++VirtualTimerStopCounter;
|
|
|
|
if (!isStopped())
|
|
{
|
|
// restart virtual timer
|
|
setTime(LastVirtualTime);
|
|
}
|
|
}
|
|
|
|
//! sets the speed of the virtual timer
|
|
void Timer::setSpeed(f32 speed)
|
|
{
|
|
setTime(getTime());
|
|
|
|
VirtualTimerSpeed = speed;
|
|
if (VirtualTimerSpeed < 0.0f)
|
|
VirtualTimerSpeed = 0.0f;
|
|
}
|
|
|
|
//! gets the speed of the virtual timer
|
|
f32 Timer::getSpeed()
|
|
{
|
|
return VirtualTimerSpeed;
|
|
}
|
|
|
|
//! returns if the timer currently is stopped
|
|
bool Timer::isStopped()
|
|
{
|
|
return VirtualTimerStopCounter < 0;
|
|
}
|
|
|
|
void Timer::initVirtualTimer()
|
|
{
|
|
StaticTime = getRealTime();
|
|
StartRealTime = StaticTime;
|
|
}
|
|
|
|
} // end namespace os
|
|
} // end namespace irr
|
|
|
|
|