// Copyright (C) 2005-2009 Etienne Petitjean
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in Irrlicht.h

#include "IrrCompileConfig.h"

#ifdef _IRR_COMPILE_WITH_OSX_DEVICE_

#import <Cocoa/Cocoa.h>
#import <OpenGL/gl.h>
#import <Carbon/Carbon.h>

#include "CIrrDeviceMacOSX.h"
#include "IEventReceiver.h"
#include "irrList.h"
#include "os.h"
#include "CTimer.h"
#include "irrString.h"
#include "Keycodes.h"
#include <stdio.h>
#include <sys/utsname.h>
#include "COSOperator.h"
#include "CColorConverter.h"
#include "irrlicht.h"


#import <wchar.h>
#import <time.h>
#import "AppDelegate.h"

#if defined _IRR_COMPILE_WITH_JOYSTICK_EVENTS_

#include <IOKit/IOKitLib.h>
#include <IOKit/IOCFPlugIn.h>
#ifdef MACOS_10_0_4
#include <IOKit/hidsystem/IOHIDUsageTables.h>
#else
/* The header was moved here in Mac OS X 10.1 */
#include <Kernel/IOKit/hidsystem/IOHIDUsageTables.h>
#endif
#include <IOKit/hid/IOHIDLib.h>
#include <IOKit/hid/IOHIDKeys.h>

struct JoystickComponent
{
	IOHIDElementCookie cookie;				// unique value which identifies element, will NOT change
	long min;								// reported min value possible
	long max;								// reported max value possible

	long minRead;							//min read value
	long maxRead;							//max read value

	JoystickComponent() : min(0), minRead(0), max(0), maxRead(0)
	{
	}
};

struct JoystickInfo
{
	irr::core::array <JoystickComponent> axisComp;
	irr::core::array <JoystickComponent> buttonComp;
	irr::core::array <JoystickComponent> hatComp;
	
	int	hats;
	int	axes;
	int	buttons;
	
	int numActiveJoysticks;

	irr::SEvent persistentData;

	IOHIDDeviceInterface ** interface;
	bool removed;
	char joystickName[256];
	long usage;								// usage page from IOUSBHID Parser.h which defines general usage
	long usagePage;							// usage within above page from IOUSBHID Parser.h which defines specific usage

	JoystickInfo() : hats(0), axes(0), buttons(0), interface(0), removed(false), usage(0), usagePage(0), numActiveJoysticks(0)
	{
		interface = NULL;
		memset(joystickName, '\0', 256);
		axisComp.clear();
		buttonComp.clear();
		hatComp.clear();

		persistentData.EventType = irr::EET_JOYSTICK_INPUT_EVENT;
		persistentData.JoystickEvent.POV = 65535;
		persistentData.JoystickEvent.ButtonStates = 0;
	}
};
irr::core::array<JoystickInfo> ActiveJoysticks;

//helper functions for init joystick
static IOReturn closeJoystickDevice (JoystickInfo* joyInfo)
{
	IOReturn result = kIOReturnSuccess;
	if (joyInfo && joyInfo->interface)
	{
		/* close the interface */
		result = (*(joyInfo->interface))->close (joyInfo->interface);
		if (kIOReturnNotOpen == result)
		{
			/* do nothing as device was not opened, thus can't be closed */
		}
		else if (kIOReturnSuccess != result)
			irr::os::Printer::log("IOHIDDeviceInterface failed to close", irr::ELL_ERROR);
		/* release the interface */
		result = (*(joyInfo->interface))->Release (joyInfo->interface);
		if (kIOReturnSuccess != result)
			irr::os::Printer::log("IOHIDDeviceInterface failed to release", irr::ELL_ERROR);
		joyInfo->interface = NULL;
	}
	return result;
}

static void addComponentInfo (CFTypeRef refElement, JoystickComponent *pComponent, int numActiveJoysticks)
{
	long number;
	CFTypeRef refType;

	refType = CFDictionaryGetValue ((CFDictionaryRef)refElement, CFSTR(kIOHIDElementCookieKey));
	if (refType && CFNumberGetValue ((CFNumberRef)refType, kCFNumberLongType, &number))
		pComponent->cookie = (IOHIDElementCookie) number;
	refType = CFDictionaryGetValue ((CFDictionaryRef)refElement, CFSTR(kIOHIDElementMinKey));
	if (refType && CFNumberGetValue ((CFNumberRef)refType, kCFNumberLongType, &number))
		pComponent->minRead = pComponent->min = number;
	refType = CFDictionaryGetValue ((CFDictionaryRef)refElement, CFSTR(kIOHIDElementMaxKey));
	if (refType && CFNumberGetValue ((CFNumberRef)refType, kCFNumberLongType, &number))
		pComponent->maxRead = pComponent->max = number;
}

static void getJoystickComponentArrayHandler (const void * value, void * parameter);

static void addJoystickComponent (CFTypeRef refElement, JoystickInfo* joyInfo)
{
	long elementType, usagePage, usage;
	CFTypeRef refElementType = CFDictionaryGetValue ((CFDictionaryRef)refElement, CFSTR(kIOHIDElementTypeKey));
	CFTypeRef refUsagePage = CFDictionaryGetValue ((CFDictionaryRef)refElement, CFSTR(kIOHIDElementUsagePageKey));
	CFTypeRef refUsage = CFDictionaryGetValue ((CFDictionaryRef)refElement, CFSTR(kIOHIDElementUsageKey));


	if ((refElementType) && (CFNumberGetValue ((CFNumberRef)refElementType, kCFNumberLongType, &elementType)))
	{
		/* look at types of interest */
		if ((elementType == kIOHIDElementTypeInput_Misc) || (elementType == kIOHIDElementTypeInput_Button) ||
			(elementType == kIOHIDElementTypeInput_Axis))
		{
			if (refUsagePage && CFNumberGetValue ((CFNumberRef)refUsagePage, kCFNumberLongType, &usagePage) &&
				refUsage && CFNumberGetValue ((CFNumberRef)refUsage, kCFNumberLongType, &usage))
			{
				switch (usagePage) /* only interested in kHIDPage_GenericDesktop and kHIDPage_Button */
				{
					case kHIDPage_GenericDesktop:
						{
							switch (usage) /* look at usage to determine function */
							{
								case kHIDUsage_GD_X:
								case kHIDUsage_GD_Y:
								case kHIDUsage_GD_Z:
								case kHIDUsage_GD_Rx:
								case kHIDUsage_GD_Ry:
								case kHIDUsage_GD_Rz:
								case kHIDUsage_GD_Slider:
								case kHIDUsage_GD_Dial:
								case kHIDUsage_GD_Wheel:
								{
									joyInfo->axes++;
									JoystickComponent newComponent;
									addComponentInfo(refElement, &newComponent, joyInfo->numActiveJoysticks);
									joyInfo->axisComp.push_back(newComponent);
								}
								break;
								case kHIDUsage_GD_Hatswitch:
								{
									joyInfo->hats++;
									JoystickComponent newComponent;
									addComponentInfo(refElement, &newComponent, joyInfo->numActiveJoysticks);
									joyInfo->hatComp.push_back(newComponent);
								}
								break;
							}							
						}
						break;
					case kHIDPage_Button:
						{
							joyInfo->buttons++;
							JoystickComponent newComponent;
							addComponentInfo(refElement, &newComponent, joyInfo->numActiveJoysticks);
							joyInfo->buttonComp.push_back(newComponent);
						}
						break;
					default:
						break;
				}
			}
		}
		else if (kIOHIDElementTypeCollection == elementType)
		{
			//get elements
			CFTypeRef refElementTop = CFDictionaryGetValue ((CFMutableDictionaryRef) refElement, CFSTR(kIOHIDElementKey));
			if (refElementTop)
			{
				CFTypeID type = CFGetTypeID (refElementTop);
				if (type == CFArrayGetTypeID())
				{
					CFRange range = {0, CFArrayGetCount ((CFArrayRef)refElementTop)};
					CFArrayApplyFunction ((CFArrayRef)refElementTop, range, getJoystickComponentArrayHandler, joyInfo);
				}
			}
		}
	}

}

static void getJoystickComponentArrayHandler (const void * value, void * parameter)
{
	if (CFGetTypeID (value) == CFDictionaryGetTypeID ())
		addJoystickComponent ((CFTypeRef) value, (JoystickInfo *) parameter);
}

static void joystickTopLevelElementHandler (const void * value, void * parameter)
{
	CFTypeRef refCF = 0;
	if (CFGetTypeID (value) != CFDictionaryGetTypeID ())
		return;
	refCF = CFDictionaryGetValue ((CFDictionaryRef)value, CFSTR(kIOHIDElementUsagePageKey));
	if (!CFNumberGetValue ((CFNumberRef)refCF, kCFNumberLongType, &((JoystickInfo *) parameter)->usagePage))
		irr::os::Printer::log("CFNumberGetValue error retrieving JoystickInfo->usagePage", irr::ELL_ERROR);
	refCF = CFDictionaryGetValue ((CFDictionaryRef)value, CFSTR(kIOHIDElementUsageKey));
	if (!CFNumberGetValue ((CFNumberRef)refCF, kCFNumberLongType, &((JoystickInfo *) parameter)->usage))
		irr::os::Printer::log("CFNumberGetValue error retrieving JoystickInfo->usage", irr::ELL_ERROR);
}

static void getJoystickDeviceInfo (io_object_t hidDevice, CFMutableDictionaryRef hidProperties, JoystickInfo *joyInfo)
{
	CFMutableDictionaryRef usbProperties = 0;
	io_registry_entry_t parent1, parent2;
	
	/* Mac OS X currently is not mirroring all USB properties to HID page so need to look at USB device page also
	 * get dictionary for usb properties: step up two levels and get CF dictionary for USB properties
	 */
	if ((KERN_SUCCESS == IORegistryEntryGetParentEntry (hidDevice, kIOServicePlane, &parent1)) &&
		(KERN_SUCCESS == IORegistryEntryGetParentEntry (parent1, kIOServicePlane, &parent2)) &&
		(KERN_SUCCESS == IORegistryEntryCreateCFProperties (parent2, &usbProperties, kCFAllocatorDefault, kNilOptions)))
	{
		if (usbProperties)
		{
			CFTypeRef refCF = 0;
			/* get device info
			 * try hid dictionary first, if fail then go to usb dictionary
			 */
			
			
			/* get joystickName name */
			refCF = CFDictionaryGetValue (hidProperties, CFSTR(kIOHIDProductKey));
			if (!refCF)
				refCF = CFDictionaryGetValue (usbProperties, CFSTR("USB Product Name"));
			if (refCF)
			{
				if (!CFStringGetCString ((CFStringRef)refCF, joyInfo->joystickName, 256, CFStringGetSystemEncoding ()))
					irr::os::Printer::log("CFStringGetCString error getting joyInfo->joystickName", irr::ELL_ERROR);
			}
			
			/* get usage page and usage */
			refCF = CFDictionaryGetValue (hidProperties, CFSTR(kIOHIDPrimaryUsagePageKey));
			if (refCF)
			{
				if (!CFNumberGetValue ((CFNumberRef)refCF, kCFNumberLongType, &joyInfo->usagePage))
					irr::os::Printer::log("CFNumberGetValue error getting joyInfo->usagePage", irr::ELL_ERROR);
				refCF = CFDictionaryGetValue (hidProperties, CFSTR(kIOHIDPrimaryUsageKey));
				if (refCF)
					if (!CFNumberGetValue ((CFNumberRef)refCF, kCFNumberLongType, &joyInfo->usage))
						irr::os::Printer::log("CFNumberGetValue error getting joyInfo->usage", irr::ELL_ERROR);
			}

			if (NULL == refCF) /* get top level element HID usage page or usage */
			{
				/* use top level element instead */
				CFTypeRef refCFTopElement = 0;
				refCFTopElement = CFDictionaryGetValue (hidProperties, CFSTR(kIOHIDElementKey));
				{
					/* refCFTopElement points to an array of element dictionaries */
					CFRange range = {0, CFArrayGetCount ((CFArrayRef)refCFTopElement)};
					CFArrayApplyFunction ((CFArrayRef)refCFTopElement, range, joystickTopLevelElementHandler, joyInfo);
				}
			}

			CFRelease (usbProperties);
		}
		else
			irr::os::Printer::log("IORegistryEntryCreateCFProperties failed to create usbProperties", irr::ELL_ERROR);

		if (kIOReturnSuccess != IOObjectRelease (parent2))
			irr::os::Printer::log("IOObjectRelease failed to release parent2", irr::ELL_ERROR);
		if (kIOReturnSuccess != IOObjectRelease (parent1))
			irr::os::Printer::log("IOObjectRelease failed to release parent1", irr::ELL_ERROR);
	}
}

#endif // _IRR_COMPILE_WITH_JOYSTICK_EVENTS_

//------------------------------------------------------------------------------------------
Boolean GetDictionaryBoolean(CFDictionaryRef theDict, const void* key)
{
	// get a boolean from the dictionary
	Boolean value = false;
	CFBooleanRef boolRef;
	boolRef = (CFBooleanRef)CFDictionaryGetValue(theDict, key);
	if (boolRef != NULL)
		value = CFBooleanGetValue(boolRef);
	return value;
}
//------------------------------------------------------------------------------------------
long GetDictionaryLong(CFDictionaryRef theDict, const void* key)
{
	// get a long from the dictionary
	long value = 0;
	CFNumberRef numRef;
	numRef = (CFNumberRef)CFDictionaryGetValue(theDict, key);
	if (numRef != NULL)
		CFNumberGetValue(numRef, kCFNumberLongType, &value);
	return value;
}

namespace irr
{
	namespace video
	{
		IVideoDriver* createOpenGLDriver(const SIrrlichtCreationParameters& param, io::IFileSystem* io, CIrrDeviceMacOSX *device);
	}
} // end namespace irr

static bool firstLaunch = true;

namespace irr
{
//! constructor
CIrrDeviceMacOSX::CIrrDeviceMacOSX(const SIrrlichtCreationParameters& param)
	: CIrrDeviceStub(param), Window(NULL), IsActive(true), OGLContext(NULL), CGLContext(NULL),
	SoftwareDriverTarget(0), IsSoftwareRenderer(false), IsResizable(false),
	IsShiftDown(false), IsControlDown(false), MouseButtonStates(0)
{
	struct utsname name;
	NSString	*path;

	#ifdef _DEBUG
	setDebugName("CIrrDeviceMacOSX");
	#endif

	if (firstLaunch)
	{
		firstLaunch = false;

		[[NSAutoreleasePool alloc] init];
		[NSApplication sharedApplication];
		[NSApp setDelegate:[[[AppDelegate alloc] initWithDevice:this] autorelease]];
		[NSBundle loadNibNamed:@"MainMenu" owner:[NSApp delegate]];
		[NSApp finishLaunching];

		path = [[[NSBundle mainBundle] bundlePath] stringByDeletingLastPathComponent];
		chdir([path fileSystemRepresentation]);
	}

	uname(&name);
	Operator = new COSOperator(name.version);
	os::Printer::log(name.version,ELL_INFORMATION);

	initKeycodes();
	if (CreationParams.DriverType != video::EDT_NULL)
		createWindow();
	
	setResizable(false);
	
	CursorControl = new CCursorControl(CreationParams.WindowSize, this);
	createDriver();
	
	if (IsSoftwareRenderer && CreationParams.DriverType != video::EDT_NULL)
	{
		// create context for rendering raw bitmap
	}
	
	createGUIAndScene();
}

CIrrDeviceMacOSX::~CIrrDeviceMacOSX()
{
	SetSystemUIMode(kUIModeNormal, 0);
	closeDevice();
#if defined(_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
	for(u32 joystick = 0; joystick < ActiveJoysticks.size(); ++joystick)
	{
		if(ActiveJoysticks[joystick].interface)
			closeJoystickDevice(&ActiveJoysticks[joystick]);
	}
#endif
}

void CIrrDeviceMacOSX::closeDevice()
{
	if (Window != NULL)
	{
		[Window setIsVisible:FALSE];

		if (OGLContext != NULL)
		{
			[OGLContext clearDrawable];
			[OGLContext release];
			OGLContext = NULL;
		}

		[Window setReleasedWhenClosed:TRUE];
		[Window release];
		Window = NULL;
	}
	else
	{
		if (CGLContext != NULL)
		{
			CGLSetCurrentContext(NULL);
			CGLClearDrawable(CGLContext);
			CGLDestroyContext(CGLContext);
		}
	}

	IsActive = false;
	CGLContext = NULL;
}

bool CIrrDeviceMacOSX::createWindow()
{
	CGDisplayErr            error;
	bool                    result;
	CGDirectDisplayID       display;
	CGLPixelFormatObj       pixelFormat;
	CGRect                  displayRect;
	CGLPixelFormatAttribute	fullattribs[32];
	CFDictionaryRef         displaymode, olddisplaymode;
	GLint                   numPixelFormats, newSwapInterval;
	int alphaSize = CreationParams.WithAlphaChannel?4:0, depthSize = CreationParams.ZBufferBits;

	if (CreationParams.WithAlphaChannel && (CreationParams.Bits == 32))
		alphaSize = 8;

	result = false;
	display = CGMainDisplayID();
	ScreenWidth  = (int) CGDisplayPixelsWide(display);
	ScreenHeight = (int) CGDisplayPixelsHigh(display);
	
	VideoModeList.setDesktop(CreationParams.Bits, core::dimension2d<u32>(ScreenWidth, ScreenHeight));

	if (!CreationParams.Fullscreen)
	{
		Window = [[NSWindow alloc] initWithContentRect:NSMakeRect(0,0,CreationParams.WindowSize.Width,CreationParams.WindowSize.Height) styleMask:NSTitledWindowMask+NSClosableWindowMask+NSResizableWindowMask backing:NSBackingStoreBuffered defer:FALSE];
		if (Window != NULL)
		{
			NSOpenGLPixelFormatAttribute windowattribs[] = 
			{
					NSOpenGLPFANoRecovery,
					NSOpenGLPFAAccelerated,
					NSOpenGLPFADepthSize,     (NSOpenGLPixelFormatAttribute)depthSize,
					NSOpenGLPFAColorSize,     (NSOpenGLPixelFormatAttribute)CreationParams.Bits,
					NSOpenGLPFAAlphaSize,     (NSOpenGLPixelFormatAttribute)alphaSize,
					NSOpenGLPFASampleBuffers, (NSOpenGLPixelFormatAttribute)1,
					NSOpenGLPFASamples,       (NSOpenGLPixelFormatAttribute)CreationParams.AntiAlias,
					NSOpenGLPFAStencilSize,   (NSOpenGLPixelFormatAttribute)(CreationParams.Stencilbuffer?1:0),
					NSOpenGLPFADoubleBuffer,
					(NSOpenGLPixelFormatAttribute)nil
			};

			if (CreationParams.AntiAlias<2)
			{
				windowattribs[ 9] = (NSOpenGLPixelFormatAttribute)0;
				windowattribs[11] = (NSOpenGLPixelFormatAttribute)0;
			}

			NSOpenGLPixelFormat *format;
			for (int i=0; i<3; ++i)
			{
				if (1==i)
				{
					// Second try without stencilbuffer
					if (CreationParams.Stencilbuffer)
					{
						windowattribs[13]=(NSOpenGLPixelFormatAttribute)0;
					}
					else
						continue;
				}
				else if (2==i)
				{
					// Third try without Doublebuffer
					os::Printer::log("No doublebuffering available.", ELL_WARNING);
					windowattribs[14]=(NSOpenGLPixelFormatAttribute)nil;
				}

				format = [[NSOpenGLPixelFormat alloc] initWithAttributes:windowattribs];
				if (format == NULL)
				{
					if (CreationParams.AntiAlias>1)
					{
						while (!format && windowattribs[12]>1)
						{
							windowattribs[12] = (NSOpenGLPixelFormatAttribute)((int)windowattribs[12]-1);
							format = [[NSOpenGLPixelFormat alloc] initWithAttributes:windowattribs];
						}
						
						if (!format)
						{
							windowattribs[9] = (NSOpenGLPixelFormatAttribute)0;
							windowattribs[11] = (NSOpenGLPixelFormatAttribute)0;
							format = [[NSOpenGLPixelFormat alloc] initWithAttributes:windowattribs];
							if (!format)
							{
								// reset values for next try
								windowattribs[9] = (NSOpenGLPixelFormatAttribute)1;
								windowattribs[11] = (NSOpenGLPixelFormatAttribute)CreationParams.AntiAlias;
							}
							else
							{
								os::Printer::log("No FSAA available.", ELL_WARNING);
							}
							
						}
					}
				}
				else
					break;
			}
			CreationParams.AntiAlias    = windowattribs[11];
			CreationParams.Stencilbuffer=(windowattribs[13]==1);

			if (format != NULL)
			{
				OGLContext = [[NSOpenGLContext alloc] initWithFormat:format shareContext:NULL];
				[format release];
			}

			if (OGLContext != NULL)
			{
				[Window center];
				[Window setDelegate:[NSApp delegate]];
				[OGLContext setView:[Window contentView]];
				[Window setAcceptsMouseMovedEvents:TRUE];
				[Window setIsVisible:TRUE];
				[Window makeKeyAndOrderFront:nil];

				CGLContext = (CGLContextObj) [OGLContext CGLContextObj];
				DeviceWidth  = CreationParams.WindowSize.Width;
				DeviceHeight = CreationParams.WindowSize.Height;
				result = true;
			}
		}
	}
	else
	{
		displaymode = CGDisplayBestModeForParameters(display,CreationParams.Bits,CreationParams.WindowSize.Width,CreationParams.WindowSize.Height,NULL);
		if (displaymode != NULL)
		{
			olddisplaymode = CGDisplayCurrentMode(display);
			error = CGCaptureAllDisplays();
			if (error == CGDisplayNoErr)
			{
				error = CGDisplaySwitchToMode(display,displaymode);
				if (error == CGDisplayNoErr)
				{
					pixelFormat = NULL;
					numPixelFormats = 0;

					int index = 0;
					fullattribs[index++] = kCGLPFAFullScreen;
					fullattribs[index++] = kCGLPFADisplayMask;
					fullattribs[index++] = (CGLPixelFormatAttribute)CGDisplayIDToOpenGLDisplayMask(display);
					fullattribs[index++] = kCGLPFADoubleBuffer;
					fullattribs[index++] = kCGLPFAAccelerated;
					fullattribs[index++] = kCGLPFADepthSize;
					fullattribs[index++] = (CGLPixelFormatAttribute)depthSize;
					fullattribs[index++] = kCGLPFAColorSize;
					fullattribs[index++] = (CGLPixelFormatAttribute)CreationParams.Bits;
					fullattribs[index++] = kCGLPFAAlphaSize;
					fullattribs[index++] = (CGLPixelFormatAttribute)alphaSize;

					if (CreationParams.AntiAlias)
					{
						fullattribs[index++] = kCGLPFASampleBuffers;
						fullattribs[index++] = (CGLPixelFormatAttribute)1;
						fullattribs[index++] = kCGLPFASamples;
						fullattribs[index++] = (CGLPixelFormatAttribute)CreationParams.AntiAlias;
					}

					if (CreationParams.Stencilbuffer)
					{
						fullattribs[index++] = kCGLPFAStencilSize;
						fullattribs[index++] = (CGLPixelFormatAttribute)1;
					}

					fullattribs[index++] = (CGLPixelFormatAttribute)NULL;
					CGLChoosePixelFormat(fullattribs,&pixelFormat,&numPixelFormats);

					if (pixelFormat != NULL)
					{
						CGLCreateContext(pixelFormat,NULL,&CGLContext);
						CGLDestroyPixelFormat(pixelFormat);
					}

					if (CGLContext != NULL)
					{
						CGLSetFullScreen(CGLContext);
						displayRect = CGDisplayBounds(display);
						ScreenWidth = DeviceWidth = (int)displayRect.size.width;
						ScreenHeight = DeviceHeight = (int)displayRect.size.height;
						result = true;
					}
				}
			}
		}
	}

	if (result)
	{
		if (Window == NULL)
			SetSystemUIMode(kUIModeAllHidden, kUIOptionAutoShowMenuBar);
		CGLSetCurrentContext(CGLContext);
		newSwapInterval = (CreationParams.Vsync) ? 1 : 0;
		CGLSetParameter(CGLContext,kCGLCPSwapInterval,&newSwapInterval);
		glViewport(0,0,DeviceWidth,DeviceHeight);
		glMatrixMode(GL_PROJECTION);
		glLoadIdentity();
		glMatrixMode(GL_MODELVIEW);
		glLoadIdentity();
	}

	return (result);
}

void CIrrDeviceMacOSX::setResize(int width, int height)
{	
	// set new window size
	DeviceWidth = width;
	DeviceHeight = height;
	
	// update the size of the opengl rendering context
	[OGLContext update];
	
	// resize the driver to the inner pane size
	NSRect driverFrame = [Window contentRectForFrameRect:[Window frame]];
	getVideoDriver()->OnResize(core::dimension2d<u32>( (s32)driverFrame.size.width, (s32)driverFrame.size.height));
}

void CIrrDeviceMacOSX::createDriver()
{
	switch (CreationParams.DriverType)
	{
		case video::EDT_SOFTWARE:
		#ifdef _IRR_COMPILE_WITH_SOFTWARE_
			VideoDriver = video::createSoftwareDriver(CreationParams.WindowSize, CreationParams.Fullscreen, FileSystem, this);
			IsSoftwareRenderer = true;
		#else
			os::Printer::log("No Software driver support compiled in.", ELL_ERROR);
		#endif
			break;

		case video::EDT_BURNINGSVIDEO:
		#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
			VideoDriver = video::createSoftwareDriver2(CreationParams.WindowSize, CreationParams.Fullscreen, FileSystem, this);
			IsSoftwareRenderer = true;
		#else
			os::Printer::log("Burning's video driver was not compiled in.", ELL_ERROR);
		#endif
			break;

		case video::EDT_OPENGL:
		#ifdef _IRR_COMPILE_WITH_OPENGL_
			VideoDriver = video::createOpenGLDriver(CreationParams, FileSystem, this);
		#else
			os::Printer::log("No OpenGL support compiled in.", ELL_ERROR);
		#endif
			break;

		case video::EDT_DIRECT3D8:
		case video::EDT_DIRECT3D9:
			os::Printer::log("This driver is not available in OSX. Try OpenGL or Software renderer.", ELL_ERROR);
			break;

		case video::EDT_NULL:
			VideoDriver = video::createNullDriver(FileSystem, CreationParams.WindowSize);
			break;

		default:
			os::Printer::log("Unable to create video driver of unknown type.", ELL_ERROR);
			break;
	}
	
}

void CIrrDeviceMacOSX::flush()
{
	if (CGLContext != NULL)
	{
		glFinish();
		CGLFlushDrawable(CGLContext);
	}
}

bool CIrrDeviceMacOSX::run()
{
	NSEvent		*event;
	irr::SEvent	ievent;

	os::Timer::tick();
	storeMouseLocation();

	event = [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:YES];
	if (event != nil)
	{
		bzero(&ievent,sizeof(ievent));

		switch([(NSEvent *)event type])
		{
			case NSKeyDown:
				postKeyEvent(event,ievent,true);
				break;

			case NSKeyUp:
				postKeyEvent(event,ievent,false);
				break;

			case NSFlagsChanged:
				ievent.EventType = irr::EET_KEY_INPUT_EVENT;
				ievent.KeyInput.Shift   = ([(NSEvent *)event modifierFlags] & NSShiftKeyMask  ) != 0;
				ievent.KeyInput.Control = ([(NSEvent *)event modifierFlags] & NSControlKeyMask) != 0;
				
				if (IsShiftDown != ievent.KeyInput.Shift)
				{
					ievent.KeyInput.Char = irr::KEY_SHIFT;
					ievent.KeyInput.Key = irr::KEY_SHIFT;
					ievent.KeyInput.PressedDown = ievent.KeyInput.Shift;
					
					IsShiftDown = ievent.KeyInput.Shift;
					
					postEventFromUser(ievent);
				}
				
				if (IsControlDown != ievent.KeyInput.Control)
				{
					ievent.KeyInput.Char = irr::KEY_CONTROL;
					ievent.KeyInput.Key = irr::KEY_CONTROL;
					ievent.KeyInput.PressedDown = ievent.KeyInput.Control;
					
					IsControlDown = ievent.KeyInput.Control;
					
					postEventFromUser(ievent);
				}
				
				[NSApp sendEvent:event];
				break;				
				
			case NSLeftMouseDown:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				ievent.MouseInput.Event = irr::EMIE_LMOUSE_PRESSED_DOWN;
				MouseButtonStates |= irr::EMBSM_LEFT;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				postMouseEvent(event,ievent);
				break;

			case NSLeftMouseUp:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				MouseButtonStates &= !irr::EMBSM_LEFT;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				ievent.MouseInput.Event = irr::EMIE_LMOUSE_LEFT_UP;
				postMouseEvent(event,ievent);
				break;
				
			case NSOtherMouseDown:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				ievent.MouseInput.Event = irr::EMIE_MMOUSE_PRESSED_DOWN;
				MouseButtonStates |= irr::EMBSM_MIDDLE;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				postMouseEvent(event,ievent);
				break;
				
			case NSOtherMouseUp:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				MouseButtonStates &= !irr::EMBSM_MIDDLE;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				ievent.MouseInput.Event = irr::EMIE_MMOUSE_LEFT_UP;
				postMouseEvent(event,ievent);
				break;

			case NSMouseMoved:
			case NSLeftMouseDragged:
			case NSRightMouseDragged:
			case NSOtherMouseDragged:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				ievent.MouseInput.Event = irr::EMIE_MOUSE_MOVED;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				postMouseEvent(event,ievent);
				break;

			case NSRightMouseDown:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				ievent.MouseInput.Event = irr::EMIE_RMOUSE_PRESSED_DOWN;
				MouseButtonStates |= irr::EMBSM_RIGHT;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				postMouseEvent(event,ievent);
				break;

			case NSRightMouseUp:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				ievent.MouseInput.Event = irr::EMIE_RMOUSE_LEFT_UP;
				MouseButtonStates &= !irr::EMBSM_RIGHT;
				ievent.MouseInput.ButtonStates = MouseButtonStates;
				postMouseEvent(event,ievent);
				break;

			case NSScrollWheel:
				ievent.EventType = irr::EET_MOUSE_INPUT_EVENT;
				ievent.MouseInput.Event = irr::EMIE_MOUSE_WHEEL;
				ievent.MouseInput.Wheel = [(NSEvent *)event deltaY];
				if (ievent.MouseInput.Wheel < 1.0f) ievent.MouseInput.Wheel *= 10.0f;
				else ievent.MouseInput.Wheel *= 5.0f;
				postMouseEvent(event,ievent);
				break;

			default:
				[NSApp sendEvent:event];
				break;
		}
	}

	pollJoysticks();

	return (![[NSApp delegate] isQuit] && IsActive);
}

//! Pause the current process for the minimum time allowed only to allow other processes to execute
void CIrrDeviceMacOSX::yield()
{
	// TODO: Does this work or maybe is there a better way?
	struct timespec ts = {0,0};
	nanosleep(&ts, NULL);
}

//! Pause execution and let other processes to run for a specified amount of time.
void CIrrDeviceMacOSX::sleep(u32 timeMs, bool pauseTimer=false)
{
	// TODO: Does this work or maybe is there a better way?

	bool wasStopped = Timer ? Timer->isStopped() : true;

	struct timespec ts;
	ts.tv_sec = (time_t) (timeMs / 1000);
	ts.tv_nsec = (long) (timeMs % 1000) * 1000000;

	if (pauseTimer && !wasStopped)
		Timer->stop();

	nanosleep(&ts, NULL);

	if (pauseTimer && !wasStopped)
		Timer->start();
}

void CIrrDeviceMacOSX::setWindowCaption(const wchar_t* text)
{
	size_t	size;
	char	title[1024];

	if (Window != NULL)
	{
		size = wcstombs(title,text,1024);
		if (size == 1024) title[1023] = 0;
		[Window setTitle:[NSString stringWithCString:title length:size]];
	}
}


bool CIrrDeviceMacOSX::isWindowActive() const
{
	return (IsActive);
}


bool CIrrDeviceMacOSX::isWindowFocused() const
{
	if (Window != NULL)
		return [Window isKeyWindow];
	return false;
}


bool CIrrDeviceMacOSX::isWindowMinimized() const
{
	if (Window != NULL)
		return [Window isMiniaturized];
	return false;
}


void CIrrDeviceMacOSX::postKeyEvent(void *event,irr::SEvent &ievent,bool pressed)
{
	NSString				*str;
	std::map<int,int>::const_iterator	iter;
	unsigned int				result,c,mkey,mchar;
	const unsigned char			*cStr;
	BOOL					skipCommand;

	str = [(NSEvent *)event characters];
	if (str != nil && [str length] > 0)
	{
		mkey = mchar = 0;
		skipCommand = false;
		c = [str characterAtIndex:0];

		iter = KeyCodes.find(c);
		if (iter != KeyCodes.end()) 
			mkey = (*iter).second;
		else
		{
			// workaround for period character
			if (c == 0x2E)
			{
				mkey = irr::KEY_PERIOD;
				mchar = '.';
			} 
			else 
			{
				cStr = (unsigned char *)[str cStringUsingEncoding:NSWindowsCP1252StringEncoding];
				if (cStr != NULL && strlen((char*)cStr) > 0)
				{
					mchar = cStr[0];
					mkey = toupper(mchar);
					if ([(NSEvent *)event modifierFlags] & NSCommandKeyMask)
					{
						if (mkey == 'C' || mkey == 'V' || mkey == 'X')
						{
							mchar = 0;
							skipCommand = true;
						}
					}
				}
			}
		}

		ievent.EventType = irr::EET_KEY_INPUT_EVENT;
		ievent.KeyInput.Key = (irr::EKEY_CODE)mkey;
		ievent.KeyInput.PressedDown = pressed;
		ievent.KeyInput.Shift = ([(NSEvent *)event modifierFlags] & NSShiftKeyMask) != 0;
		ievent.KeyInput.Control = ([(NSEvent *)event modifierFlags] & NSControlKeyMask) != 0;
		ievent.KeyInput.Char = mchar;

		if (skipCommand)
			ievent.KeyInput.Control = true;
		else if ([(NSEvent *)event modifierFlags] & NSCommandKeyMask)
			[NSApp sendEvent:(NSEvent *)event];

		postEventFromUser(ievent);
	}
}

void CIrrDeviceMacOSX::postMouseEvent(void *event,irr::SEvent &ievent)
{
	bool post = true;

	if (Window != NULL)
	{
		ievent.MouseInput.X = (int)[(NSEvent *)event locationInWindow].x;
		ievent.MouseInput.Y = DeviceHeight - (int)[(NSEvent *)event locationInWindow].y;
		
		if (ievent.MouseInput.Y < 0) 
			post = false;
	}
	else
	{
		ievent.MouseInput.X = (int)[NSEvent mouseLocation].x;
		ievent.MouseInput.Y = DeviceHeight - (int)[NSEvent mouseLocation].y;
	}

	if (post)
		postEventFromUser(ievent);
	
	[NSApp sendEvent:(NSEvent *)event];
}

void CIrrDeviceMacOSX::storeMouseLocation()
{
	NSPoint	p;
	int	x,y;

	p = [NSEvent mouseLocation];

	if (Window != NULL)
	{
		p = [Window convertScreenToBase:p];
		x = (int)p.x;
		y = DeviceHeight - (int)p.y;
	}
	else
	{
		x = (int)p.x;
		y = (int)p.y;
		y -= (ScreenHeight - DeviceHeight);
	}

	((CCursorControl *)CursorControl)->updateInternalCursorPosition(x,y);
}


void CIrrDeviceMacOSX::setMouseLocation(int x,int y)
{
	NSPoint	p;
	CGPoint	c;

	if (Window != NULL)
	{
		// Irrlicht window exists
		p.x = (float) x;
		p.y = (float) (DeviceHeight - y);
		p = [Window convertBaseToScreen:p];
		p.y = ScreenHeight - p.y;
	}
	else
	{
		p.x = (float) x;
		p.y = (float) y + (ScreenHeight - DeviceHeight);
	}

	c.x = p.x;
	c.y = p.y;
	CGSetLocalEventsSuppressionInterval(0);
	CGWarpMouseCursorPosition(c);
}


void CIrrDeviceMacOSX::setCursorVisible(bool visible)
{
	CGDirectDisplayID	display;

	display = CGMainDisplayID();
	if (visible)
		CGDisplayShowCursor(display);
	else
		CGDisplayHideCursor(display);
}


void CIrrDeviceMacOSX::initKeycodes()
{
	KeyCodes[NSUpArrowFunctionKey]     = irr::KEY_UP;
	KeyCodes[NSDownArrowFunctionKey]   = irr::KEY_DOWN;
	KeyCodes[NSLeftArrowFunctionKey]   = irr::KEY_LEFT;
	KeyCodes[NSRightArrowFunctionKey]  = irr::KEY_RIGHT;
	KeyCodes[NSF1FunctionKey]          = irr::KEY_F1;
	KeyCodes[NSF2FunctionKey]          = irr::KEY_F2;
	KeyCodes[NSF3FunctionKey]          = irr::KEY_F3;
	KeyCodes[NSF4FunctionKey]          = irr::KEY_F4;
	KeyCodes[NSF5FunctionKey]          = irr::KEY_F5;
	KeyCodes[NSF6FunctionKey]          = irr::KEY_F6;
	KeyCodes[NSF7FunctionKey]          = irr::KEY_F7;
	KeyCodes[NSF8FunctionKey]          = irr::KEY_F8;
	KeyCodes[NSF9FunctionKey]          = irr::KEY_F9;
	KeyCodes[NSF10FunctionKey]         = irr::KEY_F10;
	KeyCodes[NSF11FunctionKey]         = irr::KEY_F11;
	KeyCodes[NSF12FunctionKey]         = irr::KEY_F12;
	KeyCodes[NSF13FunctionKey]         = irr::KEY_F13;
	KeyCodes[NSF14FunctionKey]         = irr::KEY_F14;
	KeyCodes[NSF15FunctionKey]         = irr::KEY_F15;
	KeyCodes[NSF16FunctionKey]         = irr::KEY_F16;
	KeyCodes[NSHomeFunctionKey]        = irr::KEY_HOME;
	KeyCodes[NSEndFunctionKey]         = irr::KEY_END;
	KeyCodes[NSInsertFunctionKey]      = irr::KEY_INSERT;
	KeyCodes[NSDeleteFunctionKey]      = irr::KEY_DELETE;
	KeyCodes[NSHelpFunctionKey]        = irr::KEY_HELP;
	KeyCodes[NSSelectFunctionKey]      = irr::KEY_SELECT;
	KeyCodes[NSPrintFunctionKey]       = irr::KEY_PRINT;
	KeyCodes[NSExecuteFunctionKey]     = irr::KEY_EXECUT;
	KeyCodes[NSPrintScreenFunctionKey] = irr::KEY_SNAPSHOT;
	KeyCodes[NSPauseFunctionKey]       = irr::KEY_PAUSE;
	KeyCodes[NSScrollLockFunctionKey]  = irr::KEY_SCROLL;
	KeyCodes[0x7F]                     = irr::KEY_BACK;
	KeyCodes[0x09]                     = irr::KEY_TAB;
	KeyCodes[0x0D]                     = irr::KEY_RETURN;
	KeyCodes[0x03]                     = irr::KEY_RETURN;
	KeyCodes[0x1B]                     = irr::KEY_ESCAPE;
}



//! Sets if the window should be resizable in windowed mode.
void CIrrDeviceMacOSX::setResizable(bool resize)
{
	IsResizable = resize;
}
	
bool CIrrDeviceMacOSX::isResizable() const
{
	return IsResizable;
}

void CIrrDeviceMacOSX::minimizeWindow()
{
	// todo: implement
}
	
//! Maximizes the window if possible.
void CIrrDeviceMacOSX::maximizeWindow()
{
	// todo: implement
}
	
//! Restore the window to normal size if possible.
void CIrrDeviceMacOSX::restoreWindow()
{
	// todo: implement
}

bool CIrrDeviceMacOSX::present(video::IImage* surface, void* windowId, core::rect<s32>* src )
{
	// todo: implement window ID and src rectangle
	
	if (!surface)
		return false;
	
	if (IsSoftwareRenderer)
	{
		// do we need to change the size?
		bool updateSize = !SoftwareDriverTarget ||
		s32([SoftwareDriverTarget size].width)  != surface->getDimension().Width ||
		s32([SoftwareDriverTarget size].height) != surface->getDimension().Height;
		
		// release if necessary
		if (SoftwareDriverTarget && updateSize)
			[SoftwareDriverTarget release];
		
		NSRect areaRect = NSMakeRect(0.0, 0.0, surface->getDimension().Width, surface->getDimension().Height);
		
		// get pointer to image data
		unsigned char* imgData = (unsigned char*)surface->lock();

		// create / update the target
		if (updateSize)
		{
			// allocate target for IImage
			SoftwareDriverTarget = [[NSBitmapImageRep alloc] 
			                        initWithBitmapDataPlanes: nil
			                        pixelsWide: areaRect.size.width
			                        pixelsHigh: areaRect.size.height 
			                        bitsPerSample: 8
			                        samplesPerPixel: 3
			                        hasAlpha: NO
			                        isPlanar: NO
			                        colorSpaceName: NSCalibratedRGBColorSpace
			                        bytesPerRow: (3 * areaRect.size.width)
			                        bitsPerPixel: 24];
		}
		
		const u32 destwidth = areaRect.size.width;
		const u32 minWidth = core::min_(surface->getDimension().Width, destwidth);
		const u32 destPitch = (3 * areaRect.size.width);
		
		u8* srcdata = reinterpret_cast<u8*>(imgData);
		u8* destData = reinterpret_cast<u8*>([SoftwareDriverTarget bitmapData]);		
		const u32 destheight =  areaRect.size.height;
		const u32 srcheight = core::min_(surface->getDimension().Height, destheight);
		const u32 srcPitch = surface->getPitch();
		for (u32 y=0; y!=srcheight; ++y)
		{
			video::CColorConverter::convert_viaFormat(srcdata, surface->getColorFormat(), minWidth, destData, video::ECF_R8G8B8);
			srcdata  += srcPitch;
			destData += destPitch;
		}
		
		// unlock the data
		surface->unlock();
		
		// todo: draw properly into a sub-view
		[SoftwareDriverTarget draw];
	}
	
	return false;
}

#if defined (_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
static void joystickRemovalCallback(void * target,
                               IOReturn result,
                               void * refcon,
                               void * sender)
{
	JoystickInfo *joy = (JoystickInfo *) refcon;
	joy->removed = 1;
}
#endif // _IRR_COMPILE_WITH_JOYSTICK_EVENTS_


bool CIrrDeviceMacOSX::activateJoysticks(core::array<SJoystickInfo> & joystickInfo)
{
#if defined (_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
	ActiveJoysticks.clear();
	joystickInfo.clear();

	io_object_t hidObject = 0;
	io_iterator_t hidIterator = 0;
	IOReturn result = kIOReturnSuccess;
	mach_port_t masterPort = 0;
	CFMutableDictionaryRef hidDictionaryRef = NULL;

	result = IOMasterPort (bootstrap_port, &masterPort);
	if (kIOReturnSuccess != result)
	{
		os::Printer::log("initialiseJoysticks IOMasterPort failed", ELL_ERROR);
		return false;
	}

	hidDictionaryRef = IOServiceMatching (kIOHIDDeviceKey);
	if (!hidDictionaryRef)
	{
		os::Printer::log("initialiseJoysticks IOServiceMatching failed", ELL_ERROR);
		return false;
	}
	result = IOServiceGetMatchingServices (masterPort, hidDictionaryRef, &hidIterator);

	if (kIOReturnSuccess != result)
	{
		os::Printer::log("initialiseJoysticks IOServiceGetMatchingServices failed", ELL_ERROR);
		return false;
	}

	//no joysticks just return
	if (!hidIterator)
		return false;

	while ((hidObject = IOIteratorNext (hidIterator)))
	{
		JoystickInfo info;

		// get dictionary for HID properties
		CFMutableDictionaryRef hidProperties = 0;

		kern_return_t kern_result = IORegistryEntryCreateCFProperties (hidObject, &hidProperties, kCFAllocatorDefault, kNilOptions);
		if ((kern_result == KERN_SUCCESS) && hidProperties)
		{
			HRESULT plugInResult = S_OK;
			SInt32 score = 0;
			IOCFPlugInInterface ** ppPlugInInterface = NULL;
			result = IOCreatePlugInInterfaceForService (hidObject, kIOHIDDeviceUserClientTypeID,
													kIOCFPlugInInterfaceID, &ppPlugInInterface, &score);
			if (kIOReturnSuccess == result)
			{
				plugInResult = (*ppPlugInInterface)->QueryInterface (ppPlugInInterface,
									CFUUIDGetUUIDBytes (kIOHIDDeviceInterfaceID), (void **) &(info.interface));
				if (plugInResult != S_OK)
					os::Printer::log("initialiseJoysticks query HID class device interface failed", ELL_ERROR);
				(*ppPlugInInterface)->Release(ppPlugInInterface);
			}
			else
				continue;

			if (info.interface != NULL)
			{
				result = (*(info.interface))->open (info.interface, 0);
				if (result == kIOReturnSuccess)
				{
					(*(info.interface))->setRemovalCallback (info.interface, joystickRemovalCallback, &info, &info);
					getJoystickDeviceInfo(hidObject, hidProperties, &info);

					// get elements
					CFTypeRef refElementTop = CFDictionaryGetValue (hidProperties, CFSTR(kIOHIDElementKey));
					if (refElementTop)
					{
						CFTypeID type = CFGetTypeID (refElementTop);
						if (type == CFArrayGetTypeID())
						{
							CFRange range = {0, CFArrayGetCount ((CFArrayRef)refElementTop)};
							info.numActiveJoysticks = ActiveJoysticks.size();
							CFArrayApplyFunction ((CFArrayRef)refElementTop, range, getJoystickComponentArrayHandler, &info);
						}
					}
				}
				else
				{
					CFRelease (hidProperties);
					os::Printer::log("initialiseJoysticks Open interface failed", ELL_ERROR);
					continue;				
				}

				CFRelease (hidProperties);

				result = IOObjectRelease (hidObject);
				
				if ( (info.usagePage != kHIDPage_GenericDesktop) ||
					 ((info.usage != kHIDUsage_GD_Joystick &&
					  info.usage != kHIDUsage_GD_GamePad &&
					  info.usage != kHIDUsage_GD_MultiAxisController)) ) 
				{
					closeJoystickDevice (&info);
					continue;
				}

				for (u32 i = 0; i < 6; i++)
					info.persistentData.JoystickEvent.Axis[i] = 0;

				ActiveJoysticks.push_back(info);
				
				SJoystickInfo returnInfo;
				returnInfo.Axes = info.axes;
				//returnInfo.Hats = info.hats;
				returnInfo.Buttons = info.buttons;
				returnInfo.Name    = info.joystickName;
				returnInfo.PovHat  = SJoystickInfo::POV_HAT_UNKNOWN;

				//if (info.hatComp.size())
				//	returnInfo.PovHat = SJoystickInfo::POV_HAT_PRESENT;
				//else
				//	returnInfo.PovHat = SJoystickInfo::POV_HAT_ABSENT;

				joystickInfo.push_back(returnInfo);
			}

		}
		else
		{
			continue;
		}
	}
	result = IOObjectRelease (hidIterator);

	return true;
#endif // _IRR_COMPILE_WITH_JOYSTICK_EVENTS_

	return false;
}

void CIrrDeviceMacOSX::pollJoysticks()
{
#if defined (_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
	if(0 == ActiveJoysticks.size())
		return;

	u32 joystick;
	for (joystick = 0; joystick < ActiveJoysticks.size(); ++joystick)
	{
		if (ActiveJoysticks[joystick].removed)
			continue;
		
		bool found = false;
		ActiveJoysticks[joystick].persistentData.JoystickEvent.Joystick = joystick;

		if (ActiveJoysticks[joystick].interface)
		{
			for (u32 n = 0; n < ActiveJoysticks[joystick].axisComp.size(); n++)
			{
				IOReturn result = kIOReturnSuccess;
				IOHIDEventStruct hidEvent;
				hidEvent.value = 0;
				result = (*(ActiveJoysticks[joystick].interface))->getElementValue(ActiveJoysticks[joystick].interface, ActiveJoysticks[joystick].axisComp[n].cookie, &hidEvent);
				if (kIOReturnSuccess == result)
				{
					const f32 min = -32768.0f;
					const f32 max = 32767.0f;
					const f32 deviceScale = max - min;
					const f32 readScale = (f32)ActiveJoysticks[joystick].axisComp[n].maxRead - (f32)ActiveJoysticks[joystick].axisComp[n].minRead;

					if (hidEvent.value < ActiveJoysticks[joystick].axisComp[n].minRead)
						ActiveJoysticks[joystick].axisComp[n].minRead = hidEvent.value;
					if (hidEvent.value > ActiveJoysticks[joystick].axisComp[n].maxRead)
						ActiveJoysticks[joystick].axisComp[n].maxRead = hidEvent.value;
					
					if (readScale != 0.0f)
						hidEvent.value = (int)(((f32)((f32)hidEvent.value - (f32)ActiveJoysticks[joystick].axisComp[n].minRead) * deviceScale / readScale) + min);

					if (ActiveJoysticks[joystick].persistentData.JoystickEvent.Axis[n] != (s16)hidEvent.value)
						found = true;
					ActiveJoysticks[joystick].persistentData.JoystickEvent.Axis[n] = (s16)hidEvent.value;
				}
			}//axis check

			for (u32 n = 0; n < ActiveJoysticks[joystick].buttonComp.size(); n++)
			{
				IOReturn result = kIOReturnSuccess;
				IOHIDEventStruct hidEvent;
				hidEvent.value = 0;
				result = (*(ActiveJoysticks[joystick].interface))->getElementValue(ActiveJoysticks[joystick].interface, ActiveJoysticks[joystick].buttonComp[n].cookie, &hidEvent);
				if (kIOReturnSuccess == result)
				{
					u32 ButtonStates = 0;

					if (hidEvent.value && !((ActiveJoysticks[joystick].persistentData.JoystickEvent.ButtonStates & (1 << n)) ? true : false) )
							found = true;
					else if (!hidEvent.value && ((ActiveJoysticks[joystick].persistentData.JoystickEvent.ButtonStates & (1 << n)) ? true : false))
							found = true;

					if (hidEvent.value)
							ActiveJoysticks[joystick].persistentData.JoystickEvent.ButtonStates |= (1 << n);
					else
							ActiveJoysticks[joystick].persistentData.JoystickEvent.ButtonStates &= ~(1 << n);
				}
			}//button check
			//still ToDo..will be done soon :)
/*
			for (u32 n = 0; n < ActiveJoysticks[joystick].hatComp.size(); n++)
			{
				IOReturn result = kIOReturnSuccess;
				IOHIDEventStruct hidEvent;
				hidEvent.value = 0;
				result = (*(ActiveJoysticks[joystick].interface))->getElementValue(ActiveJoysticks[joystick].interface, ActiveJoysticks[joystick].hatComp[n].cookie, &hidEvent);
				if (kIOReturnSuccess == result)
				{
					if (ActiveJoysticks[joystick].persistentData.JoystickEvent.POV != hidEvent.value)
						found = true;
					ActiveJoysticks[joystick].persistentData.JoystickEvent.POV = hidEvent.value;
				}
			}//hat check
*/
		}

		if (found)
			postEventFromUser(ActiveJoysticks[joystick].persistentData);
	}
#endif // _IRR_COMPILE_WITH_JOYSTICK_EVENTS_
}

video::IVideoModeList* CIrrDeviceMacOSX::getVideoModeList()
{
	if (!VideoModeList.getVideoModeCount())
	{
		CGDirectDisplayID display;
		display = CGMainDisplayID();

		CFArrayRef availableModes = CGDisplayAvailableModes(display);
		unsigned int numberOfAvailableModes = CFArrayGetCount(availableModes);
		for (u32 i= 0; i<numberOfAvailableModes; ++i)
		{
			// look at each mode in the available list
			CFDictionaryRef mode = (CFDictionaryRef)CFArrayGetValueAtIndex(availableModes, i);
			long bitsPerPixel = GetDictionaryLong(mode, kCGDisplayBitsPerPixel);
			Boolean safeForHardware = GetDictionaryBoolean(mode, kCGDisplayModeIsSafeForHardware);
			Boolean stretched = GetDictionaryBoolean(mode, kCGDisplayModeIsStretched);

			if (!safeForHardware)
				continue;

			long width = GetDictionaryLong(mode, kCGDisplayWidth);
			long height = GetDictionaryLong(mode, kCGDisplayHeight);
			// long refresh = GetDictionaryLong((mode), kCGDisplayRefreshRate);
			VideoModeList.addMode(core::dimension2d<u32>(width, height),
				bitsPerPixel);
		}
	}
	return &VideoModeList;
}

} // end namespace

#endif // _IRR_COMPILE_WITH_OSX_DEVICE_
