// Copyright (C) 2002-2007 Nikolaus Gebhardt
// Copyright (C) 2007-2011 Christian Stehno
// Copyright (C) 2016-2017 Dawid Gan
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#include "CIrrDeviceAndroid.h"

#ifdef _IRR_COMPILE_WITH_ANDROID_DEVICE_

#include <assert.h>
#include "os.h"
#include "CContextEGL.h"
#include "CFileSystem.h"
#include "COGLES2Driver.h"

namespace irr
{
	namespace video
	{
		IVideoDriver* createOGLES2Driver(const SIrrlichtCreationParameters& params,
			video::SExposedVideoData& data, io::IFileSystem* io);
	}
}

namespace irr
{

// These variables must be global. Otherwise initialization will reach infinite
// loop after creating the device second time (i.e. the NULL driver and then
// GLES2 driver). We get initialization events from Android only once.
bool CIrrDeviceAndroid::IsPaused = true;
bool CIrrDeviceAndroid::IsFocused = false;
bool CIrrDeviceAndroid::IsStarted = false;

// Execution of android_main() function is a kind of "onCreate" event, so this
// function should be used there to make sure that global window state variables
// have their default values on startup.
void CIrrDeviceAndroid::onCreate()
{
	IsPaused = true;
	IsFocused = false;
	IsStarted = false;
}

//! constructor
CIrrDeviceAndroid::CIrrDeviceAndroid(const SIrrlichtCreationParameters& param)
	: CIrrDeviceStub(param),
	Accelerometer(0),
	Gyroscope(0),
	IsMousePressed(false)
{
	#ifdef _DEBUG
	setDebugName("CIrrDeviceAndroid");
	#endif

	Android = (android_app *)(param.PrivateData);
	assert(Android != NULL);

	Android->userData = this;
	Android->onAppCmd = handleAndroidCommand;
	Android->onInputEvent = handleInput;
	
	createKeyMap();

	CursorControl = new CCursorControl();
	
	Close = Android->destroyRequested;

	// It typically shouldn't happen, but just in case...
	if (Close)
		return;

	SensorManager = ASensorManager_getInstance();
	SensorEventQueue = ASensorManager_createEventQueue(SensorManager,
								Android->looper, LOOPER_ID_USER, NULL, NULL);

	ANativeActivity_setWindowFlags(Android->activity,
								   AWINDOW_FLAG_KEEP_SCREEN_ON |
								   AWINDOW_FLAG_FULLSCREEN, 0);

	os::Printer::log("Waiting for Android activity window to be created.", ELL_DEBUG);

	while (!IsStarted || !IsFocused || IsPaused)
	{
		s32 events = 0;
		android_poll_source* source = 0;

		s32 id = ALooper_pollAll(-1, NULL, &events, (void**)&source);

		if (id >=0 && source != NULL)
		{
			source->process(Android, source);
		}
	}
	
	assert(Android->window);
	os::Printer::log("Done", ELL_DEBUG);
	
	ExposedVideoData.OGLESAndroid.Window = Android->window;

	createVideoModeList();

	createDriver();

	if (VideoDriver)
		createGUIAndScene();
}


CIrrDeviceAndroid::~CIrrDeviceAndroid()
{
	Android->userData = NULL;
	Android->onAppCmd = NULL;
	Android->onInputEvent = NULL;
}

void CIrrDeviceAndroid::createVideoModeList()
{
	if (VideoModeList.getVideoModeCount() > 0)
		return;
		
	int width = ANativeWindow_getWidth(Android->window);
	int height = ANativeWindow_getHeight(Android->window);
	
	if (width > 0 && height > 0)
	{
		CreationParams.WindowSize.Width = width;
		CreationParams.WindowSize.Height = height;
	}

	core::dimension2d<u32> size = core::dimension2d<u32>(
									CreationParams.WindowSize.Width,
									CreationParams.WindowSize.Height);

	VideoModeList.addMode(size, 32);
	VideoModeList.setDesktop(32, size);
}

void CIrrDeviceAndroid::createDriver()
{
	// Create the driver.
	switch(CreationParams.DriverType)
	{
	case video::EDT_OGLES2:
		#ifdef _IRR_COMPILE_WITH_OGLES2_
		VideoDriver = video::createOGLES2Driver(CreationParams, ExposedVideoData, FileSystem);
		#else
		os::Printer::log("No OpenGL ES 2.0 support compiled in.", ELL_ERROR);
		#endif
		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;
	}
}

bool CIrrDeviceAndroid::run()
{
	os::Timer::tick();
	
	while (!Close)
	{
		s32 Events = 0;
		android_poll_source* Source = 0;
		bool should_run = (IsStarted && IsFocused && !IsPaused);
		s32 id = ALooper_pollAll(should_run ? 0 : -1, NULL, &Events,
								 (void**)&Source);

		if (id < 0)
			break;

		if (Source)
		{
			Source->process(Android, Source);
		}

		// if a sensor has data, we'll process it now.
		if (id == LOOPER_ID_USER)
		{
			ASensorEvent event;
			while (ASensorEventQueue_getEvents(SensorEventQueue, &event, 1) > 0)
			{
				switch (event.type)
				{
				case ASENSOR_TYPE_ACCELEROMETER:
					SEvent accEvent;
					accEvent.EventType = EET_ACCELEROMETER_EVENT;
					accEvent.AccelerometerEvent.X = event.acceleration.x;
					accEvent.AccelerometerEvent.Y = event.acceleration.y;
					accEvent.AccelerometerEvent.Z = event.acceleration.z;

					postEventFromUser(accEvent);
					break;

				case ASENSOR_TYPE_GYROSCOPE:
					SEvent gyroEvent;
					gyroEvent.EventType = EET_GYROSCOPE_EVENT;
					gyroEvent.GyroscopeEvent.X = event.vector.x;
					gyroEvent.GyroscopeEvent.Y = event.vector.y;
					gyroEvent.GyroscopeEvent.Z = event.vector.z;

					postEventFromUser(gyroEvent);
					break;
				default:
					break;
				}
			}
		}
	}

	return !Close;
}

void CIrrDeviceAndroid::yield()
{
	struct timespec ts = {0,1};
	nanosleep(&ts, NULL);
}

void CIrrDeviceAndroid::sleep(u32 timeMs, bool pauseTimer)
{
	const 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 CIrrDeviceAndroid::setWindowCaption(const wchar_t* text)
{
}

bool CIrrDeviceAndroid::present(video::IImage* surface, void* windowId,
								core::rect<s32>* srcClip)
{
	return true;
}

bool CIrrDeviceAndroid::isWindowActive() const
{
	return (IsFocused && !IsPaused);
}

bool CIrrDeviceAndroid::isWindowFocused() const
{
	return IsFocused;
}

bool CIrrDeviceAndroid::isWindowMinimized() const
{
	return IsPaused;
}

void CIrrDeviceAndroid::closeDevice()
{
	Close = true;
}

void CIrrDeviceAndroid::setResizable(bool resize)
{
}

void CIrrDeviceAndroid::minimizeWindow()
{
}

void CIrrDeviceAndroid::maximizeWindow()
{
}

void CIrrDeviceAndroid::restoreWindow()
{
}

bool CIrrDeviceAndroid::moveWindow(int x, int y)
{
	return true;
}

bool CIrrDeviceAndroid::getWindowPosition(int* x, int* y)
{
	*x = 0;
	*y = 0;
	return true;
}

E_DEVICE_TYPE CIrrDeviceAndroid::getType() const
{
	return EIDT_ANDROID;
}

void CIrrDeviceAndroid::handleAndroidCommand(android_app* app, int32_t cmd)
{
	CIrrDeviceAndroid* device = (CIrrDeviceAndroid *)app->userData;
	assert(device != NULL);
	
	switch (cmd)
	{
	case APP_CMD_SAVE_STATE:
		os::Printer::log("Android command APP_CMD_SAVE_STATE", ELL_DEBUG);
		break;
	case APP_CMD_INIT_WINDOW:
		os::Printer::log("Android command APP_CMD_INIT_WINDOW", ELL_DEBUG);
		
		device->getExposedVideoData().OGLESAndroid.Window = app->window;
		
		// If the Android app is resumed, we need to re-create EGL surface
		// to allow to draw something on it again.
		if (device->VideoDriver != NULL && 
			device->CreationParams.DriverType == video::EDT_OGLES2)
		{
			video::COGLES2Driver* driver = (video::COGLES2Driver*)(device->VideoDriver);
			driver->getEGLContext()->reloadEGLSurface(app->window);
		}
		
		IsStarted = true;
		break;
	case APP_CMD_TERM_WINDOW:
		os::Printer::log("Android command APP_CMD_TERM_WINDOW", ELL_DEBUG);
		IsStarted = false;
		break;
	case APP_CMD_GAINED_FOCUS:
		os::Printer::log("Android command APP_CMD_GAINED_FOCUS", ELL_DEBUG);
		IsFocused = true;
		break;
	case APP_CMD_LOST_FOCUS:
		os::Printer::log("Android command APP_CMD_LOST_FOCUS", ELL_DEBUG);
		IsFocused = false;
		break;
	case APP_CMD_DESTROY:
		os::Printer::log("Android command APP_CMD_DESTROY", ELL_DEBUG);
		device->Close = true;
		// Make sure that state variables are set to the default state
		// when the app is destroyed
		IsPaused = true;
		IsFocused = false;
		IsStarted = false;
		break;
	case APP_CMD_PAUSE:
		os::Printer::log("Android command APP_CMD_PAUSE", ELL_DEBUG);
		IsPaused = true;
		break;
	case APP_CMD_RESUME:
		os::Printer::log("Android command APP_CMD_RESUME", ELL_DEBUG);
		IsPaused = false;
		break;
	case APP_CMD_START:
		os::Printer::log("Android command APP_CMD_START", ELL_DEBUG);
		break;
	case APP_CMD_STOP:
		os::Printer::log("Android command APP_CMD_STOP", ELL_DEBUG);
		break;
	case APP_CMD_WINDOW_RESIZED:
		os::Printer::log("Android command APP_CMD_WINDOW_RESIZED", ELL_DEBUG);
		break;
	case APP_CMD_CONFIG_CHANGED:
		os::Printer::log("Android command APP_CMD_CONFIG_CHANGED", ELL_DEBUG);
		break;
	case APP_CMD_LOW_MEMORY:
		os::Printer::log("Android command APP_CMD_LOW_MEMORY", ELL_DEBUG);
		break;
	default:
		break;
	}
	
	SEvent event;
	event.EventType = EET_SYSTEM_EVENT;
	event.SystemEvent.EventType = ESET_ANDROID_CMD;
	event.SystemEvent.AndroidCmd.Cmd = cmd;
	device->postEventFromUser(event);
}

s32 CIrrDeviceAndroid::handleInput(android_app* app, AInputEvent* androidEvent)
{
	CIrrDeviceAndroid* device = (CIrrDeviceAndroid*)app->userData;
	assert(device != NULL);
	
	s32 status = 0;
	
	switch (AInputEvent_getType(androidEvent))
	{
	case AINPUT_EVENT_TYPE_MOTION:
	{
		SEvent event;
		event.EventType = EET_TOUCH_INPUT_EVENT;

		s32 eventAction = AMotionEvent_getAction(androidEvent);

#if 0
		// Useful for debugging. We might have to pass some of those infos on at some point.
		// but preferably device independent (so iphone can use same irrlicht flags).
		int32_t flags = AMotionEvent_getFlags(androidEvent);
		os::Printer::log("flags: ", core::stringc(flags).c_str(), ELL_DEBUG);
		int32_t metaState = AMotionEvent_getMetaState(androidEvent);
		os::Printer::log("metaState: ", core::stringc(metaState).c_str(), ELL_DEBUG);
		int32_t edgeFlags = AMotionEvent_getEdgeFlags(androidEvent);
		os::Printer::log("edgeFlags: ", core::stringc(flags).c_str(), ELL_DEBUG);
#endif

		bool touchReceived = true;
		bool simulate_mouse = false;
		core::position2d<s32> mouse_pos = core::position2d<s32>(0, 0);

		switch (eventAction & AMOTION_EVENT_ACTION_MASK)
		{
		case AMOTION_EVENT_ACTION_DOWN:
		case AMOTION_EVENT_ACTION_POINTER_DOWN:
			event.TouchInput.Event = ETIE_PRESSED_DOWN;
			break;
		case AMOTION_EVENT_ACTION_MOVE:
			event.TouchInput.Event = ETIE_MOVED;
			break;
		case AMOTION_EVENT_ACTION_UP:
		case AMOTION_EVENT_ACTION_POINTER_UP:
		case AMOTION_EVENT_ACTION_CANCEL:
			event.TouchInput.Event = ETIE_LEFT_UP;
			break;
		default:
			touchReceived = false;
			break;
		}
		
		if (touchReceived)
		{
			s32 count = 1;
			s32 idx = (eventAction & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> 
								AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
			
			// Process all touches for move action.
			if (event.TouchInput.Event == ETIE_MOVED)
			{
				count = AMotionEvent_getPointerCount(androidEvent);
				idx = 0;
			}

			for (s32 i = 0; i < count; ++i)
			{
				event.TouchInput.ID = AMotionEvent_getPointerId(androidEvent, i + idx);
				event.TouchInput.X = AMotionEvent_getX(androidEvent, i + idx);
				event.TouchInput.Y = AMotionEvent_getY(androidEvent, i + idx);
				
				if (event.TouchInput.ID >= 32)
					continue;
				
				TouchEventData& event_data = device->TouchEventsData[event.TouchInput.ID];
				
				// Don't send move event when nothing changed
				if (event_data.event == event.TouchInput.Event &&
					event_data.x == event.TouchInput.X &&
					event_data.y == event.TouchInput.Y)
					continue;
					
				event_data.event = event.TouchInput.Event;
				event_data.x = event.TouchInput.X;
				event_data.y = event.TouchInput.Y;
				
				device->postEventFromUser(event);
				
				if (event.TouchInput.ID == 0)
				{
					simulate_mouse = true;
					mouse_pos.X = event.TouchInput.X;
					mouse_pos.Y = event.TouchInput.Y;
				}
			}

			status = 1;
		}
		
		// Simulate mouse event for first finger on multitouch device.
		// This allows to click on GUI elements.		
		if (simulate_mouse)
		{
			device->CursorControl->setPosition(mouse_pos);

			SEvent irrevent;
			bool send_event = true;
			
			switch (event.TouchInput.Event)
			{
			case ETIE_PRESSED_DOWN:
				irrevent.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
				device->IsMousePressed = true;
				break;
			case ETIE_LEFT_UP:
				irrevent.MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
				device->IsMousePressed = false;
				break;
			case ETIE_MOVED:
				irrevent.MouseInput.Event = EMIE_MOUSE_MOVED;
				break;
			default:
				send_event = false;
				break;
			}
			
			if (send_event)
			{
				irrevent.MouseInput.Control = false;
				irrevent.MouseInput.Shift = false;
				irrevent.MouseInput.ButtonStates = device->IsMousePressed ? 
														irr::EMBSM_LEFT : 0;
				irrevent.EventType = EET_MOUSE_INPUT_EVENT;
				irrevent.MouseInput.X = mouse_pos.X;
				irrevent.MouseInput.Y = mouse_pos.Y;

				device->postEventFromUser(irrevent);
			}
		}
		
		break;
	}
	case AINPUT_EVENT_TYPE_KEY:
	{
		bool ignore_event = false;

		SEvent event;
		event.EventType = EET_KEY_INPUT_EVENT;
		event.KeyInput.Char = 0;
		event.KeyInput.PressedDown = false;
		event.KeyInput.Key = IRR_KEY_UNKNOWN;

		int32_t keyCode = AKeyEvent_getKeyCode(androidEvent);
		int32_t keyAction = AKeyEvent_getAction(androidEvent);
		int32_t keyMetaState = AKeyEvent_getMetaState(androidEvent);
		int32_t keyRepeat = AKeyEvent_getRepeatCount(androidEvent);

		if (keyAction == AKEY_EVENT_ACTION_DOWN)
		{
			event.KeyInput.PressedDown = true;
		}
		else if (keyAction == AKEY_EVENT_ACTION_UP)
		{
			event.KeyInput.PressedDown = false;
		}
		else if (keyAction == AKEY_EVENT_ACTION_MULTIPLE)
		{
			// TODO: Multiple duplicate key events have occurred in a row,
			// or a complex string is being delivered. The repeat_count
			// property of the key event contains the number of times the
			// given key code should be executed.
			// I guess this might necessary for more complicated i18n key input,
			// but don't see yet how to handle this correctly.
		}

		event.KeyInput.Shift = (keyMetaState & AMETA_SHIFT_ON ||
								keyMetaState & AMETA_SHIFT_LEFT_ON ||
								keyMetaState & AMETA_SHIFT_RIGHT_ON);

		event.KeyInput.Control = (keyMetaState & AMETA_CTRL_ON ||
								  keyMetaState & AMETA_CTRL_LEFT_ON ||
								  keyMetaState & AMETA_CTRL_RIGHT_ON);

		event.KeyInput.SystemKeyCode = (u32)keyCode;
		event.KeyInput.Key = device->KeyMap[keyCode];

		if (event.KeyInput.Key > 0)
		{
			device->getKeyChar(event);
		}

		// Handle an event when back button in pressed just like an escape key
		// and also avoid repeating the event to avoid some strange behaviour
		if (event.KeyInput.SystemKeyCode == AKEYCODE_BACK)
		{
			status = 1;
			
			if (event.KeyInput.PressedDown == false || keyRepeat > 0)
			{
				ignore_event = true;
			}
		}

		// Mark escape key event as handled by application to avoid receiving
		// AKEYCODE_BACK key event
		if (event.KeyInput.SystemKeyCode == AKEYCODE_ESCAPE)
		{
			status = 1;
		}

		if (!ignore_event)
		{
			device->postEventFromUser(event);
		}

		break;
	}
	default:
		break;
	}

	return status;
}

video::SExposedVideoData& CIrrDeviceAndroid::getExposedVideoData()
{
	return ExposedVideoData;
}

void CIrrDeviceAndroid::createKeyMap()
{
	KeyMap[AKEYCODE_UNKNOWN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SOFT_LEFT] = IRR_KEY_LBUTTON; 
	KeyMap[AKEYCODE_SOFT_RIGHT] = IRR_KEY_RBUTTON; 
	KeyMap[AKEYCODE_HOME] = IRR_KEY_HOME; 
	KeyMap[AKEYCODE_BACK] = IRR_KEY_ESCAPE; 
	KeyMap[AKEYCODE_CALL] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_ENDCALL] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_0] = IRR_KEY_0; 
	KeyMap[AKEYCODE_1] = IRR_KEY_1; 
	KeyMap[AKEYCODE_2] = IRR_KEY_2; 
	KeyMap[AKEYCODE_3] = IRR_KEY_3; 
	KeyMap[AKEYCODE_4] = IRR_KEY_4; 
	KeyMap[AKEYCODE_5] = IRR_KEY_5; 
	KeyMap[AKEYCODE_6] = IRR_KEY_6; 
	KeyMap[AKEYCODE_7] = IRR_KEY_7; 
	KeyMap[AKEYCODE_8] = IRR_KEY_8; 
	KeyMap[AKEYCODE_9] = IRR_KEY_9; 
	KeyMap[AKEYCODE_STAR] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_POUND] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_DPAD_UP] = IRR_KEY_UP; 
	KeyMap[AKEYCODE_DPAD_DOWN] = IRR_KEY_DOWN; 
	KeyMap[AKEYCODE_DPAD_LEFT] = IRR_KEY_LEFT; 
	KeyMap[AKEYCODE_DPAD_RIGHT] = IRR_KEY_RIGHT; 
	KeyMap[AKEYCODE_DPAD_CENTER] = IRR_KEY_RETURN; 
	KeyMap[AKEYCODE_VOLUME_UP] = IRR_KEY_VOLUME_DOWN; 
	KeyMap[AKEYCODE_VOLUME_DOWN] = IRR_KEY_VOLUME_UP; 
	KeyMap[AKEYCODE_POWER] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CAMERA] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CLEAR] = IRR_KEY_CLEAR; 
	KeyMap[AKEYCODE_A] = IRR_KEY_A; 
	KeyMap[AKEYCODE_B] = IRR_KEY_B; 
	KeyMap[AKEYCODE_C] = IRR_KEY_C; 
	KeyMap[AKEYCODE_D] = IRR_KEY_D; 
	KeyMap[AKEYCODE_E] = IRR_KEY_E; 
	KeyMap[AKEYCODE_F] = IRR_KEY_F; 
	KeyMap[AKEYCODE_G] = IRR_KEY_G; 
	KeyMap[AKEYCODE_H] = IRR_KEY_H; 
	KeyMap[AKEYCODE_I] = IRR_KEY_I; 
	KeyMap[AKEYCODE_J] = IRR_KEY_J; 
	KeyMap[AKEYCODE_K] = IRR_KEY_K; 
	KeyMap[AKEYCODE_L] = IRR_KEY_L; 
	KeyMap[AKEYCODE_M] = IRR_KEY_M; 
	KeyMap[AKEYCODE_N] = IRR_KEY_N; 
	KeyMap[AKEYCODE_O] = IRR_KEY_O; 
	KeyMap[AKEYCODE_P] = IRR_KEY_P; 
	KeyMap[AKEYCODE_Q] = IRR_KEY_Q; 
	KeyMap[AKEYCODE_R] = IRR_KEY_R; 
	KeyMap[AKEYCODE_S] = IRR_KEY_S; 
	KeyMap[AKEYCODE_T] = IRR_KEY_T; 
	KeyMap[AKEYCODE_U] = IRR_KEY_U; 
	KeyMap[AKEYCODE_V] = IRR_KEY_V; 
	KeyMap[AKEYCODE_W] = IRR_KEY_W; 
	KeyMap[AKEYCODE_X] = IRR_KEY_X; 
	KeyMap[AKEYCODE_Y] = IRR_KEY_Y; 
	KeyMap[AKEYCODE_Z] = IRR_KEY_Z; 
	KeyMap[AKEYCODE_COMMA] = IRR_KEY_COMMA; 
	KeyMap[AKEYCODE_PERIOD] = IRR_KEY_PERIOD; 
	KeyMap[AKEYCODE_ALT_LEFT] = IRR_KEY_MENU; 
	KeyMap[AKEYCODE_ALT_RIGHT] = IRR_KEY_MENU; 
	KeyMap[AKEYCODE_SHIFT_LEFT] = IRR_KEY_LSHIFT; 
	KeyMap[AKEYCODE_SHIFT_RIGHT] = IRR_KEY_RSHIFT; 
	KeyMap[AKEYCODE_TAB] = IRR_KEY_TAB; 
	KeyMap[AKEYCODE_SPACE] = IRR_KEY_SPACE; 
	KeyMap[AKEYCODE_SYM] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_EXPLORER] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_ENVELOPE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_ENTER] = IRR_KEY_RETURN; 
	KeyMap[AKEYCODE_DEL] = IRR_KEY_BACK; 
	KeyMap[AKEYCODE_GRAVE] = IRR_KEY_OEM_3; 
	KeyMap[AKEYCODE_MINUS] = IRR_KEY_MINUS; 
	KeyMap[AKEYCODE_EQUALS] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_LEFT_BRACKET] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_RIGHT_BRACKET] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BACKSLASH] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SEMICOLON] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_APOSTROPHE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SLASH] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_AT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_NUM] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_HEADSETHOOK] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_FOCUS] = IRR_KEY_UNKNOWN;
	KeyMap[AKEYCODE_PLUS] = IRR_KEY_PLUS; 
	KeyMap[AKEYCODE_MENU] = IRR_KEY_MENU; 
	KeyMap[AKEYCODE_NOTIFICATION] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SEARCH] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MEDIA_PLAY_PAUSE] = IRR_KEY_MEDIA_PLAY_PAUSE; 
	KeyMap[AKEYCODE_MEDIA_STOP] = IRR_KEY_MEDIA_STOP; 
	KeyMap[AKEYCODE_MEDIA_NEXT] = IRR_KEY_MEDIA_NEXT_TRACK; 
	KeyMap[AKEYCODE_MEDIA_PREVIOUS] = IRR_KEY_MEDIA_PREV_TRACK; 
	KeyMap[AKEYCODE_MEDIA_REWIND] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MEDIA_FAST_FORWARD] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MUTE] = IRR_KEY_VOLUME_MUTE; 
	KeyMap[AKEYCODE_PAGE_UP] = IRR_KEY_PRIOR; 
	KeyMap[AKEYCODE_PAGE_DOWN] = IRR_KEY_NEXT; 
	KeyMap[AKEYCODE_PICTSYMBOLS] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SWITCH_CHARSET] = IRR_KEY_UNKNOWN; 

	// following look like controller inputs
	KeyMap[AKEYCODE_BUTTON_A] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_B] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_C] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_X] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_Y] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_Z] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_L1] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_R1] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_L2] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_R2] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_THUMBL] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_THUMBR] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_START] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_SELECT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_MODE] = IRR_KEY_UNKNOWN; 

	KeyMap[AKEYCODE_ESCAPE] = IRR_KEY_ESCAPE; 
	KeyMap[AKEYCODE_FORWARD_DEL] = IRR_KEY_DELETE; 
	KeyMap[AKEYCODE_CTRL_LEFT] = IRR_KEY_CONTROL; 
	KeyMap[AKEYCODE_CTRL_RIGHT] = IRR_KEY_CONTROL; 
	KeyMap[AKEYCODE_CAPS_LOCK] = IRR_KEY_CAPITAL; 
	KeyMap[AKEYCODE_SCROLL_LOCK] = IRR_KEY_SCROLL; 
	KeyMap[AKEYCODE_META_LEFT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_META_RIGHT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_FUNCTION] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SYSRQ] = IRR_KEY_SNAPSHOT; 
	KeyMap[AKEYCODE_BREAK] = IRR_KEY_PAUSE; 
	KeyMap[AKEYCODE_MOVE_HOME] = IRR_KEY_HOME; 
	KeyMap[AKEYCODE_MOVE_END] = IRR_KEY_END; 
	KeyMap[AKEYCODE_INSERT] = IRR_KEY_INSERT; 
	KeyMap[AKEYCODE_FORWARD] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MEDIA_PLAY] = IRR_KEY_PLAY; 
	KeyMap[AKEYCODE_MEDIA_PAUSE] = IRR_KEY_MEDIA_PLAY_PAUSE; 
	KeyMap[AKEYCODE_MEDIA_CLOSE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MEDIA_EJECT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MEDIA_RECORD] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_F1] = IRR_KEY_F1; 
	KeyMap[AKEYCODE_F2] = IRR_KEY_F2; 
	KeyMap[AKEYCODE_F3] = IRR_KEY_F3; 
	KeyMap[AKEYCODE_F4] = IRR_KEY_F4; 
	KeyMap[AKEYCODE_F5] = IRR_KEY_F5; 
	KeyMap[AKEYCODE_F6] = IRR_KEY_F6; 
	KeyMap[AKEYCODE_F7] = IRR_KEY_F7; 
	KeyMap[AKEYCODE_F8] = IRR_KEY_F8; 
	KeyMap[AKEYCODE_F9] = IRR_KEY_F9; 
	KeyMap[AKEYCODE_F10] = IRR_KEY_F10; 
	KeyMap[AKEYCODE_F11] = IRR_KEY_F11; 
	KeyMap[AKEYCODE_F12] = IRR_KEY_F12; 
	KeyMap[AKEYCODE_NUM_LOCK] = IRR_KEY_NUMLOCK; 
	KeyMap[AKEYCODE_NUMPAD_0] = IRR_KEY_NUMPAD0; 
	KeyMap[AKEYCODE_NUMPAD_1] = IRR_KEY_NUMPAD1; 
	KeyMap[AKEYCODE_NUMPAD_2] = IRR_KEY_NUMPAD2; 
	KeyMap[AKEYCODE_NUMPAD_3] = IRR_KEY_NUMPAD3; 
	KeyMap[AKEYCODE_NUMPAD_4] = IRR_KEY_NUMPAD4; 
	KeyMap[AKEYCODE_NUMPAD_5] = IRR_KEY_NUMPAD5; 
	KeyMap[AKEYCODE_NUMPAD_6] = IRR_KEY_NUMPAD6; 
	KeyMap[AKEYCODE_NUMPAD_7] = IRR_KEY_NUMPAD7; 
	KeyMap[AKEYCODE_NUMPAD_8] = IRR_KEY_NUMPAD8; 
	KeyMap[AKEYCODE_NUMPAD_9] = IRR_KEY_NUMPAD9; 
	KeyMap[AKEYCODE_NUMPAD_DIVIDE] = IRR_KEY_DIVIDE; 
	KeyMap[AKEYCODE_NUMPAD_MULTIPLY] = IRR_KEY_MULTIPLY; 
	KeyMap[AKEYCODE_NUMPAD_SUBTRACT] = IRR_KEY_SUBTRACT; 
	KeyMap[AKEYCODE_NUMPAD_ADD] = IRR_KEY_ADD; 
	KeyMap[AKEYCODE_NUMPAD_DOT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_NUMPAD_COMMA] = IRR_KEY_COMMA; 
	KeyMap[AKEYCODE_NUMPAD_ENTER] = IRR_KEY_RETURN; 
	KeyMap[AKEYCODE_NUMPAD_EQUALS] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_NUMPAD_LEFT_PAREN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_NUMPAD_RIGHT_PAREN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_VOLUME_MUTE] = IRR_KEY_VOLUME_MUTE; 
	KeyMap[AKEYCODE_INFO] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CHANNEL_UP] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CHANNEL_DOWN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_ZOOM_IN] = IRR_KEY_ZOOM; 
	KeyMap[AKEYCODE_ZOOM_OUT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_TV] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_WINDOW] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_GUIDE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_DVR] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BOOKMARK] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CAPTIONS] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_SETTINGS] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_TV_POWER] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_TV_INPUT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_STB_POWER] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_STB_INPUT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_AVR_POWER] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_AVR_INPUT] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_PROG_RED] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_PROG_GREEN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_PROG_YELLOW] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_PROG_BLUE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_APP_SWITCH] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_1] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_2] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_3] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_4] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_5] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_6] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_7] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_8] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_9] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_10] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_11] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_12] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_13] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_14] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_15] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BUTTON_16] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_LANGUAGE_SWITCH] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MANNER_MODE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_3D_MODE] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CONTACTS] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CALENDAR] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MUSIC] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_CALCULATOR] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_ZENKAKU_HANKAKU] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_EISU] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_MUHENKAN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_HENKAN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_KATAKANA_HIRAGANA] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_YEN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_RO] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_KANA] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_ASSIST] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BRIGHTNESS_DOWN] = IRR_KEY_UNKNOWN; 
	KeyMap[AKEYCODE_BRIGHTNESS_UP] = IRR_KEY_UNKNOWN;
	KeyMap[AKEYCODE_MEDIA_AUDIO_TRACK] = IRR_KEY_UNKNOWN; 
}

void CIrrDeviceAndroid::getKeyChar(SEvent& event)
{
	// Handle ASCII chars

	event.KeyInput.Char = 0;

	// A-Z
	if (event.KeyInput.SystemKeyCode > 28 && event.KeyInput.SystemKeyCode < 55)
	{
		if (event.KeyInput.Shift)
		{
			event.KeyInput.Char = event.KeyInput.SystemKeyCode + 36;
		}
		else
		{
			event.KeyInput.Char = event.KeyInput.SystemKeyCode + 68;
		}
	}

	// 0-9
	else if (event.KeyInput.SystemKeyCode > 6 && event.KeyInput.SystemKeyCode < 17)
	{
		event.KeyInput.Char = event.KeyInput.SystemKeyCode + 41;
	}

	else if (event.KeyInput.SystemKeyCode == AKEYCODE_BACK)
	{
		event.KeyInput.Char =  8;
	}
	else if (event.KeyInput.SystemKeyCode == AKEYCODE_DEL)
	{
		event.KeyInput.Char =  8;
	}
	else if (event.KeyInput.SystemKeyCode == AKEYCODE_TAB)
	{
		event.KeyInput.Char =  9;
	}
	else if (event.KeyInput.SystemKeyCode == AKEYCODE_ENTER)
	{
		event.KeyInput.Char =  13;
	}
	else if (event.KeyInput.SystemKeyCode == AKEYCODE_SPACE)
	{
		event.KeyInput.Char =  32;
	}
	else if (event.KeyInput.SystemKeyCode == AKEYCODE_COMMA)
	{
		event.KeyInput.Char =  44;
	}
	else if (event.KeyInput.SystemKeyCode == AKEYCODE_PERIOD)
	{
		event.KeyInput.Char =  46;
	}
}

bool CIrrDeviceAndroid::activateAccelerometer(float updateInterval)
{
	if (!isAccelerometerAvailable())
		return false;

	ASensorEventQueue_enableSensor(SensorEventQueue, Accelerometer);
	ASensorEventQueue_setEventRate(SensorEventQueue, Accelerometer,
					(int32_t)(updateInterval*1000.f*1000.f)); // in microseconds

	os::Printer::log("Activated accelerometer", ELL_DEBUG);
	return true;
}

bool CIrrDeviceAndroid::deactivateAccelerometer()
{
	if (!Accelerometer)
		return false;

	ASensorEventQueue_disableSensor(SensorEventQueue, Accelerometer);
	Accelerometer = 0;
	os::Printer::log("Deactivated accelerometer", ELL_DEBUG);
	return true;
}

bool CIrrDeviceAndroid::isAccelerometerActive()
{
	return (Accelerometer != NULL);
}

bool CIrrDeviceAndroid::isAccelerometerAvailable()
{
	if (!Accelerometer)
	{
		Accelerometer = ASensorManager_getDefaultSensor(SensorManager,
													ASENSOR_TYPE_ACCELEROMETER);
	}

	return (Accelerometer != NULL);
}

bool CIrrDeviceAndroid::activateGyroscope(float updateInterval)
{
	if (!isGyroscopeAvailable())
		return false;

	ASensorEventQueue_enableSensor(SensorEventQueue, Gyroscope);
	ASensorEventQueue_setEventRate(SensorEventQueue, Gyroscope,
					(int32_t)(updateInterval*1000.f*1000.f)); // in microseconds

	os::Printer::log("Activated gyroscope", ELL_DEBUG);
	return true;
}

bool CIrrDeviceAndroid::deactivateGyroscope()
{
	if (!Gyroscope)
		return false;

	ASensorEventQueue_disableSensor(SensorEventQueue, Gyroscope);
	Gyroscope = 0;
	os::Printer::log("Deactivated gyroscope", ELL_DEBUG);
	return true;
}

bool CIrrDeviceAndroid::isGyroscopeActive()
{
	return (Gyroscope != NULL);
}

bool CIrrDeviceAndroid::isGyroscopeAvailable()
{
	if (!Gyroscope)
	{
		Gyroscope = ASensorManager_getDefaultSensor(SensorManager,
													ASENSOR_TYPE_GYROSCOPE);
	}

	return (Gyroscope != NULL);
}


} // end namespace irr

#endif