/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2002 Xodnizel
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "main.h"
#include "dface.h"
#include "input.h"
#include "config.h"


#include "sdl.h"
#include "sdl-video.h"
#include "sdl-joystick.h"

#include "../common/cheat.h"
#include "../../movie.h"
#include "../../fceu.h"
#include "../../driver.h"
#include "../../state.h"
#include "../../utils/xstring.h"
#ifdef _S9XLUA_H
#include "../../fceulua.h"
#endif

#ifdef _GTK
#include "gui.h"
#ifdef SDL_VIDEO_DRIVER_X11
#include <gdk/gdkx.h>
#endif
#endif


#include <cstring>
#include <cstdio>

/** GLOBALS **/
int NoWaiting = 0;
extern Config *g_config;
extern bool bindSavestate, frameAdvanceLagSkip, lagCounterDisplay;


/* UsrInputType[] is user-specified.  CurInputType[] is current
        (game loading can override user settings)
*/
static int UsrInputType[NUM_INPUT_DEVICES] = { SI_GAMEPAD, SI_GAMEPAD, SI_NONE };
static int CurInputType[NUM_INPUT_DEVICES] = { SI_GAMEPAD, SI_GAMEPAD, SI_NONE };
static int cspec = 0;
static int buttonConfigInProgress = 0;

extern int gametype;

/**
 * Necessary for proper GUI functioning (configuring when a game isn't loaded).
 */
void
InputUserActiveFix ()
{
	int x;
	for (x = 0; x < 3; x++)
	{
		CurInputType[x] = UsrInputType[x];
	}
}

/**
 * Parse game information and configure the input devices accordingly.
 */
void
ParseGIInput (FCEUGI * gi)
{
	gametype = gi->type;

	CurInputType[0] = UsrInputType[0];
	CurInputType[1] = UsrInputType[1];
	CurInputType[2] = UsrInputType[2];

	if (gi->input[0] >= 0)
	{
		CurInputType[0] = gi->input[0];
	}
	if (gi->input[1] >= 0)
	{
		CurInputType[1] = gi->input[1];
	}
	if (gi->inputfc >= 0)
	{
		CurInputType[2] = gi->inputfc;
	}
	cspec = gi->cspecial;
}


static uint8 QuizKingData = 0;
static uint8 HyperShotData = 0;
static uint32 MahjongData = 0;
static uint32 FTrainerData = 0;
static uint8 TopRiderData = 0;
static uint8 BWorldData[1 + 13 + 1];

static void UpdateFKB (void);
static void UpdateGamepad (void);
static void UpdateQuizKing (void);
static void UpdateHyperShot (void);
static void UpdateMahjong (void);
static void UpdateFTrainer (void);
static void UpdateTopRider (void);

static uint32 JSreturn = 0;

/**
 * Configure cheat devices (game genie, etc.).  Restarts the keyboard
 * and video subsystems.
 */
static void
DoCheatSeq ()
{
	SilenceSound (1);
	KillVideo ();

	DoConsoleCheatConfig ();
	InitVideo (GameInfo);
	SilenceSound (0);
}

#include "keyscan.h"
static uint8  g_keyState[SDL_NUM_SCANCODES];
static int DIPS = 0;

static uint8 keyonce[SDL_NUM_SCANCODES];
#define KEY(__a) g_keyState[MKK(__a)]

int getKeyState( int k )
{
	if ( (k >= 0) && (k < SDL_NUM_SCANCODES) )
	{
		return g_keyState[k];
	}
	return 0;
}

static int
_keyonly (int a)
{
	int sc;

	if ( a < 0 )
	{
		return 0;
	}

	sc = SDL_GetScancodeFromKey(a);

	// check for valid key
	if (sc >= SDL_NUM_SCANCODES || sc < 0)
	{
		return 0;
	}

	if (g_keyState[sc])
	{
		if (!keyonce[sc])
		{
			keyonce[sc] = 1;
			return 1;
		}
	} 
	else 
	{
		keyonce[sc] = 0;
	}
	return 0;
}

#define keyonly(__a) _keyonly(MKK(__a))

static int g_fkbEnabled = 0;

// this function loads the sdl hotkeys from the config file into the
// global scope.  this elimates the need for accessing the config file

int Hotkeys[HK_MAX] = { 0 };

// on every cycle of keyboardinput()
void
setHotKeys (void)
{
	std::string prefix = "SDL.Hotkeys.";
	for (int i = 0; i < HK_MAX; i++)
	{
		g_config->getOption (prefix + getHotkeyString(i), &Hotkeys[i]);
	}
	return;
}

/***
  * This function is a wrapper for FCEUI_ToggleEmulationPause that handles
  * releasing/capturing mouse pointer during pause toggles
  * */
void
TogglePause ()
{
	FCEUI_ToggleEmulationPause ();

	int no_cursor;
	g_config->getOption("SDL.NoFullscreenCursor", &no_cursor);
	int fullscreen;
	g_config->getOption ("SDL.Fullscreen", &fullscreen);

	return;
}

/*** 
 * This function opens a file chooser dialog and returns the filename the 
 * user selected.
 * */
std::string GetFilename (const char *title, bool save, const char *filter)
{
	if (FCEUI_EmulationPaused () == 0)
		FCEUI_ToggleEmulationPause ();
	std::string fname = "";

#ifdef WIN32
	OPENFILENAME ofn;		// common dialog box structure
	char szFile[260];		// buffer for file name
	HWND hwnd;			// owner window
	HANDLE hf;			// file handle

	// Initialize OPENFILENAME
	memset (&ofn, 0, sizeof (ofn));
	ofn.lStructSize = sizeof (ofn);
	ofn.hwndOwner = hwnd;
	ofn.lpstrFile = szFile;
	// Set lpstrFile[0] to '\0' so that GetOpenFileName does not 
	// use the contents of szFile to initialize itself.
	ofn.lpstrFile[0] = '\0';
	ofn.nMaxFile = sizeof (szFile);
	ofn.lpstrFilter = "All\0*.*\0";
	ofn.nFilterIndex = 1;
	ofn.lpstrFileTitle = NULL;
	ofn.nMaxFileTitle = 0;
	ofn.lpstrInitialDir = NULL;
	ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;

	// Display the Open dialog box. 
	fname = GetOpenFileName (&ofn);

#endif
#ifdef _GTK
	int fullscreen = 0;
	g_config->getOption ("SDL.Fullscreen", &fullscreen);
	if (fullscreen)
		ToggleFS ();

	GtkWidget *fileChooser;

	GtkFileFilter *filterX;
	GtkFileFilter *filterAll;

	filterX = gtk_file_filter_new ();
	gtk_file_filter_add_pattern (filterX, filter);
	gtk_file_filter_set_name (filterX, filter);


	filterAll = gtk_file_filter_new ();
	gtk_file_filter_add_pattern (filterAll, "*");
	gtk_file_filter_set_name (filterAll, "All Files");

	if (save)
		fileChooser = gtk_file_chooser_dialog_new ("Save as", NULL,
							GTK_FILE_CHOOSER_ACTION_SAVE,
							"_Cancel",
							GTK_RESPONSE_CANCEL,
							"_Save",
							GTK_RESPONSE_ACCEPT, NULL);
	else
		fileChooser = gtk_file_chooser_dialog_new ("Open", NULL,
							GTK_FILE_CHOOSER_ACTION_OPEN,
							"_Cancel",
							GTK_RESPONSE_CANCEL,
							"_Open",
							GTK_RESPONSE_ACCEPT, NULL);

	// TODO: make file filters case insensitive     
	//gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(fileChooser), filterX);
	gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (fileChooser), filterAll);
	int response = gtk_dialog_run (GTK_DIALOG (fileChooser));

	// flush gtk events
	while (gtk_events_pending ())
		gtk_main_iteration_do (TRUE);

	if (response == GTK_RESPONSE_ACCEPT)
		fname = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (fileChooser));

	gtk_widget_destroy (fileChooser);

	while (gtk_events_pending ())
		gtk_main_iteration_do (TRUE);
#endif
	FCEUI_ToggleEmulationPause ();
	return fname;
}

/**
 * This function opens a text entry dialog and returns the user's input
 */
std::string GetUserText (const char *title)
{
#ifdef _GTK
/*	prg318 - 10/13/11 - this is broken in recent build and causes 
 *	segfaults/very weird behavior i'd rather remove it for now than it cause 
 *	accidental segfaults
 *	TODO fix it
*/
#if 0

	GtkWidget* d;
	GtkWidget* entry;
	
	d = gtk_dialog_new_with_buttons(title, NULL, GTK_DIALOG_MODAL, GTK_STOCK_OK, GTK_RESPONSE_OK); 
	
	entry = gtk_entry_new();

	GtkWidget* vbox = gtk_dialog_get_content_area(GTK_DIALOG(d));
	
	gtk_container_add(GTK_CONTAINER(vbox), entry);
	
	gtk_widget_show_all(d);
	
	gtk_dialog_run(GTK_DIALOG(d));
	
	// flush gtk events
	while(gtk_events_pending())
			gtk_main_iteration_do(TRUE);

		std::string input = gtk_entry_get_text(GTK_ENTRY(entry));
	
		if (FCEUI_EmulationPaused() == 0)
        	FCEUI_ToggleEmulationPause(); // pause emulation
	
		int fullscreen = 0; 
		g_config->getOption("SDL.Fullscreen", &fullscreen);
		if(fullscreen)
			ToggleFS(); // disable fullscreen emulation
	
	FILE *fpipe;
	std::string command = "zenity --entry --title=\"";
	command.append(title);
	command.append("\" --text=\"");
	command.append(title);
	command.append(":\"");
	
	if (!(fpipe = (FILE*)popen(command.c_str(),"r"))) // If fpipe is NULL
		FCEUD_PrintError("Pipe error on opening zenity");
	int c;
	std::string input;
	while((c = fgetc(fpipe)))
	{
		if (c == EOF || c == '\n')
			break;
		input += c;
	}
    	pclose(fpipe);
     gtk_widget_destroy(d);


     while(gtk_events_pending())
     gtk_main_iteration_do(TRUE);

     FCEUI_ToggleEmulationPause(); // unpause emulation
     return input;
#endif // #if 0
#endif
  return "";
}


/**
* Lets the user start a new .fm2 movie file
**/
void FCEUD_MovieRecordTo ()
{
	std::string fname = GetFilename ("Save FM2 movie for recording", true, "FM2 movies|*.fm2");
	if (!fname.size ())
		return;			// no filename selected, quit the whole thing
	std::wstring author = mbstowcs (GetUserText ("Author name"));	// the author can be empty, so no need to check here

	FCEUI_SaveMovie (fname.c_str (), MOVIE_FLAG_FROM_POWERON, author);
}


/**
* Lets the user save a savestate to a specific file
**/
void FCEUD_SaveStateAs ()
{
	std::string fname = GetFilename ("Save savestate as...", true, "Savestates|*.fc0");
	if (!fname.size ())
		return;			// no filename selected, quit the whole thing

	FCEUI_SaveState (fname.c_str ());
}

/**
* Lets the user load a savestate from a specific file
*/
void FCEUD_LoadStateFrom ()
{
	std::string fname = GetFilename ("Load savestate from...", false, "Savestates|*.fc?");
	if (!fname.size ())
		return;			// no filename selected, quit the whole thing

	FCEUI_LoadState (fname.c_str ());
}

/**
* Hook for transformer board
*/
unsigned int *GetKeyboard(void)                                                     
{
	int size = 256;

	Uint8* keystate = (Uint8*)SDL_GetKeyboardState(&size);

	return (unsigned int*)(keystate);
}

/**
 * Parse keyboard commands and execute accordingly.
 */
static void KeyboardCommands (void)
{
	int is_shift, is_alt;

	// get the keyboard input

	// check if the family keyboard is enabled
	if (CurInputType[2] == SIFC_FKB)
	{
		if ( g_keyState[SDL_SCANCODE_SCROLLLOCK] )
		{
			g_fkbEnabled ^= 1;
			FCEUI_DispMessage ("Family Keyboard %sabled.", 0,
			g_fkbEnabled ? "en" : "dis");
		}
		if (g_fkbEnabled)
		{
			return;
		}
	}

	if (g_keyState[SDL_SCANCODE_LSHIFT]	|| g_keyState[SDL_SCANCODE_RSHIFT])
	{
		is_shift = 1;
	}
	else
	{
		is_shift = 0;
	}

	if (g_keyState[SDL_SCANCODE_LALT] || g_keyState[SDL_SCANCODE_RALT])
	{
		is_alt = 1;
	}
	else
	{
		is_alt = 0;
	}


	if (_keyonly (Hotkeys[HK_TOGGLE_BG]))
	{
		if (is_shift)
		{
			FCEUI_SetRenderPlanes (true, false);
		}
		else
		{
			FCEUI_SetRenderPlanes (true, true);
		}
	}

	// Alt-Enter to toggle full-screen
	// This is already handled by GTK Accelerator
	//if (keyonly (ENTER) && is_alt)
	//{
	//	ToggleFS ();
	//}
	//
	
	// Alt-M to toggle Main Menu Visibility
	if ( is_alt )
	{
		if (keyonly (M))
		{
			toggleMenuVis();
		}
	}

	// Toggle Movie auto-backup
	if ( is_shift )
	{
		if (keyonly (M))
		{
			autoMovieBackup ^= 1;
			FCEUI_DispMessage ("Automatic movie backup %sabled.", 0,
				 autoMovieBackup ? "en" : "dis");
		}
	}

	if ( is_alt )
	{
		// Start recording an FM2 movie on Alt+R
		if (keyonly (R))
		{
			FCEUD_MovieRecordTo ();
		}
		// Save a state from a file
		if (keyonly (S))
		{
			FCEUD_SaveStateAs ();
		}
		// Load a state from a file
		if (keyonly (L))
		{
			FCEUD_LoadStateFrom ();
		}
	}

		// Famicom disk-system games
	if (gametype == GIT_FDS)
	{
		if (_keyonly (Hotkeys[HK_FDS_SELECT]))
		{
			FCEUI_FDSSelect ();
		}
		if (_keyonly (Hotkeys[HK_FDS_EJECT]))
		{
			FCEUI_FDSInsert ();
		}
	}

	if (_keyonly (Hotkeys[HK_SCREENSHOT]))
	{
		FCEUI_SaveSnapshot ();
	}

	// if not NES Sound Format
	if (gametype != GIT_NSF)
	{
		if (_keyonly (Hotkeys[HK_CHEAT_MENU]))
		{
			DoCheatSeq ();
		}

		// f5 (default) save key, hold shift to save movie
		if (_keyonly (Hotkeys[HK_SAVE_STATE]))
		{
			if (is_shift)
			{
				std::string movie_fname = FCEU_MakeFName (FCEUMKF_MOVIE, 0, 0);
				FCEUI_printf ("Recording movie to %s\n", movie_fname.c_str() );
				FCEUI_SaveMovie(movie_fname.c_str() , MOVIE_FLAG_NONE, L"");
			}
			else
			{
				FCEUI_SaveState (NULL);
			}
		}

		// f7 to load state, Shift-f7 to load movie
		if (_keyonly (Hotkeys[HK_LOAD_STATE]))
		{
			if (is_shift)
			{
				FCEUI_StopMovie ();
				std::string fname;
				fname =
				GetFilename ("Open FM2 movie for playback...", false,
								"FM2 movies|*.fm2");
				if (fname != "")
				{
					if (fname.find (".fm2") != std::string::npos
					|| fname.find (".fm3") != std::string::npos)
					{
						FCEUI_printf ("Playing back movie located at %s\n",
										fname.c_str ());
						FCEUI_LoadMovie (fname.c_str (), false, false);
					}
					else
					{
						FCEUI_printf
							("Only .fm2 and .fm3 movies are supported.\n");
					}
				}
			}
			else
			{
				FCEUI_LoadState(NULL);
			}
		}
	}


	if (_keyonly (Hotkeys[HK_DECREASE_SPEED]))
	{
		DecreaseEmulationSpeed();
	}

	if (_keyonly(Hotkeys[HK_INCREASE_SPEED]))
	{
		IncreaseEmulationSpeed ();
	}

	if (_keyonly (Hotkeys[HK_TOGGLE_FRAME_DISPLAY]))
	{
		FCEUI_MovieToggleFrameDisplay ();
	}

	if (_keyonly (Hotkeys[HK_TOGGLE_INPUT_DISPLAY]))
	{
		FCEUI_ToggleInputDisplay ();
		extern int input_display;
		g_config->setOption ("SDL.InputDisplay", input_display);
	}

	if (_keyonly (Hotkeys[HK_MOVIE_TOGGLE_RW]))
	{
		FCEUI_SetMovieToggleReadOnly (!FCEUI_GetMovieToggleReadOnly ());
	}

#ifdef CREATE_AVI
	if (_keyonly (Hotkeys[HK_MUTE_CAPTURE]))
	{
		extern int mutecapture;
		mutecapture ^= 1;
	}
#endif

	if (_keyonly (Hotkeys[HK_PAUSE]))
	{
		//FCEUI_ToggleEmulationPause(); 
		// use the wrapper function instead of the fceui function directly
		// so we can handle cursor grabbage
		TogglePause ();
	}

	// Toggle throttling
	if ( _keyonly(Hotkeys[HK_TURBO]) )
	{
		NoWaiting ^= 1;
		//printf("NoWaiting: 0x%04x\n", NoWaiting );
	}

	static bool frameAdvancing = false;
	if ( _keyonly(Hotkeys[HK_FRAME_ADVANCE]))
	{
		if (frameAdvancing == false)
		{
			FCEUI_FrameAdvance ();
			frameAdvancing = true;
		}
	}
	else
	{
		if (frameAdvancing)
		{
			FCEUI_FrameAdvanceEnd ();
			frameAdvancing = false;
		}
	}

	if (_keyonly (Hotkeys[HK_RESET]))
	{
		FCEUI_ResetNES ();
	}
	//if(_keyonly(Hotkeys[HK_POWER])) {
	//    FCEUI_PowerNES();
	//}
	if (_keyonly (Hotkeys[HK_QUIT]))
	{
		CloseGame();
		FCEUI_Kill();
		SDL_Quit();
		exit(0);
	}
	else
#ifdef _S9XLUA_H
	if (_keyonly (Hotkeys[HK_LOAD_LUA]))
	{
		std::string fname;
		fname = GetFilename ("Open LUA script...", false, "Lua scripts|*.lua");
		if (fname != "")
		FCEU_LoadLuaCode (fname.c_str ());
	}
#endif

	for (int i = 0; i < 10; i++)
	{
		if (_keyonly (Hotkeys[HK_SELECT_STATE_0 + i]))
		{
#ifdef _GTK
			setStateMenuItem(i);
#endif
			FCEUI_SelectState (i, 1);
		}
	}

	if (_keyonly (Hotkeys[HK_SELECT_STATE_NEXT]))
	{
		FCEUI_SelectStateNext (1);
#ifdef _GTK
		setStateMenuItem( CurrentState );
#endif
	}

	if (_keyonly (Hotkeys[HK_SELECT_STATE_PREV]))
	{
		FCEUI_SelectStateNext (-1);
#ifdef _GTK
		setStateMenuItem( CurrentState );
#endif
	}

	if (_keyonly (Hotkeys[HK_BIND_STATE]))
	{
		bindSavestate ^= 1;
		FCEUI_DispMessage ("Savestate binding to movie %sabled.", 0,
		bindSavestate ? "en" : "dis");
	}

	if (_keyonly (Hotkeys[HK_FA_LAG_SKIP]))
	{
		frameAdvanceLagSkip ^= 1;
		FCEUI_DispMessage ("Skipping lag in Frame Advance %sabled.", 0,
		frameAdvanceLagSkip ? "en" : "dis");
	}

	if (_keyonly (Hotkeys[HK_LAG_COUNTER_DISPLAY]))
	{
		lagCounterDisplay ^= 1;
	}

	if (_keyonly (Hotkeys[HK_TOGGLE_SUBTITLE]))
	{
		movieSubtitles = !movieSubtitles;
		FCEUI_DispMessage ("Movie subtitles o%s.", 0,
		movieSubtitles ? "n" : "ff");
	}

	if (_keyonly (Hotkeys[HK_VOLUME_DOWN]))
	{
		FCEUD_SoundVolumeAdjust(-1);
	}

	if (_keyonly (Hotkeys[HK_VOLUME_UP]))
	{
		FCEUD_SoundVolumeAdjust(1);
	}

	// VS Unisystem games
	if (gametype == GIT_VSUNI)
	{
		// insert coin
		if (_keyonly (Hotkeys[HK_VS_INSERT_COIN]))
			FCEUI_VSUniCoin ();

		// toggle dipswitch display
		if (_keyonly (Hotkeys[HK_VS_TOGGLE_DIPSWITCH]))
		{
			DIPS ^= 1;
			FCEUI_VSUniToggleDIPView ();
		}
		if (!(DIPS & 1))
			goto DIPSless;

		// toggle the various dipswitches
		for(int i=1; i<=8;i++)
		{
			if(keyonly(i))
				FCEUI_VSUniToggleDIP(i-1);
		}
	}
	else
	{
		static uint8 bbuf[32];
		static int bbuft;
		static int barcoder = 0;

		if (keyonly (H))
			FCEUI_NTSCSELHUE ();
		if (keyonly (T))
			FCEUI_NTSCSELTINT ();

		if (_keyonly (Hotkeys[HK_DECREASE_SPEED]))
			FCEUI_NTSCDEC ();
		if (_keyonly (Hotkeys[HK_INCREASE_SPEED]))
			FCEUI_NTSCINC ();

		if ((CurInputType[2] == SIFC_BWORLD) || (cspec == SIS_DATACH))
		{
			if (keyonly (F8))
			{
				barcoder ^= 1;
				if (!barcoder)
				{
					if (CurInputType[2] == SIFC_BWORLD)
					{
						strcpy ((char *) &BWorldData[1], (char *) bbuf);
						BWorldData[0] = 1;
					}
					else
					{
						FCEUI_DatachSet (bbuf);
					}
					FCEUI_DispMessage ("Barcode Entered", 0);
				}
				else
				{
					bbuft = 0;
					FCEUI_DispMessage ("Enter Barcode", 0);
				}
			}
		}
		else
		{
			barcoder = 0;
		}

#define SSM(x)                                    \
do {                                              \
	if(barcoder) {                                \
		if(bbuft < 13) {                          \
			bbuf[bbuft++] = '0' + x;              \
			bbuf[bbuft] = 0;                      \
		}                                         \
		FCEUI_DispMessage("Barcode: %s",0, bbuf); \
	}                                             \
} while(0)

		DIPSless:
		for(int i=0; i<10;i++)
		{
			if (keyonly (i))
				SSM (i);
		}
#undef SSM
	}
}

/**
 * Return the state of the mouse buttons.  Input 'd' is an array of 3
 * integers that store <x, y, button state>.
 */
void				// removed static for a call in lua-engine.cpp
GetMouseData (uint32 (&d)[3])
{
	int x, y;
	uint32 t;

	// retrieve the state of the mouse from SDL
	t = SDL_GetMouseState (&x, &y);
#ifdef _GTK
	if (noGui == 0)
	{
		// don't ask for gtk mouse info when in fullscreen
		// we can use sdl directly in fullscreen
		int fullscreen = 0;
		g_config->getOption ("SDL.Fullscreen", &fullscreen);
		if (fullscreen == 0)
		{
			x = GtkMouseData[0];
			y = GtkMouseData[1];
			t = GtkMouseData[2];
		}
	}
#endif

	d[2] = 0;
	if (t & SDL_BUTTON (1))
	{
		d[2] |= 0x1;
	}
	if (t & SDL_BUTTON (3))
	{
		d[2] |= 0x2;
	}

	// get the mouse position from the SDL video driver
	t = PtoV (x, y);
	d[0] = t & 0xFFFF;
	d[1] = (t >> 16) & 0xFFFF;
	// debug print 
	// printf("mouse %d %d %d\n", d[0], d[1], d[2]);
}

void GetMouseRelative (int32 (&d)[3])
{
	// converts absolute mouse positions to relative ones for input devices that require this
	
	// The windows version additionally in fullscreen will constantly return the mouse to center screen
	// after reading it, so that the user can endlessly keep moving the mouse.
	// The same should eventually be implemented here, but this version should minimally provide
	// the necessary relative input, piggybacking on the already implemented GetMouseData.

	static int cx = -1;
	static int cy = -1;

	uint32 md[3];
	GetMouseData (md);
	
	if (cx < 0 || cy < 0)
	{
		cx = md[0];
		cy = md[1];
	}

	int dx = md[0] - cx;
	int dy = md[1] - cy;
	
	d[0] = dx;
	d[1] = dy;
	d[2] = md[2]; // buttons
}

//static void checkKeyBoardState( int scanCode )
//{
//	printf("Key State is: %i \n", g_keyState[ scanCode ] );
//}
/**
 * Handles outstanding SDL events.
 */
static void
UpdatePhysicalInput ()
{
	SDL_Event event;

	//SDL_JoystickUpdate();

	// loop, handling all pending events
	while (SDL_PollEvent (&event))
	{
		switch (event.type)
		{
			case SDL_QUIT:
			  CloseGame ();
			  puts ("Quit");
			  break;
			case SDL_FCEU_HOTKEY_EVENT:
				switch (event.user.code)
				{
					case HK_PAUSE:
						TogglePause ();
						break;
					default:
						FCEU_printf ("Warning: unknown hotkey event %d\n",
									event.user.code);
				}
				break;
			case SDL_KEYDOWN:
			case SDL_KEYUP:
				//printf("SDL_Event.type: %i  Keysym: %i  ScanCode: %i\n", 
				//		event.type, event.key.keysym.sym, event.key.keysym.scancode );

				g_keyState[ event.key.keysym.scancode ] = (event.type == SDL_KEYDOWN) ? 1 : 0;
				//checkKeyBoardState( event.key.keysym.scancode );
				break;
			case SDL_JOYDEVICEADDED:
				AddJoystick( event.jdevice.which );
				break;
			case SDL_JOYDEVICEREMOVED:
				RemoveJoystick( event.jdevice.which );
				break;
			default:
				break;
		}
	}
	//SDL_PumpEvents();
}


/**
 *  Begin configuring the buttons by placing the video and joystick
 *  subsystems into a well-known state.  Button configuration really
 *  needs to be cleaned up after the new config system is in place.
 */
int ButtonConfigBegin ()
{
	// initialize the joystick subsystem (if not already inited)
	InitJoysticks ();

   buttonConfigInProgress = 1;

	return 1;
}

/**
 *  Finish configuring the buttons by reverting the video and joystick
 *  subsystems to their previous state.  Button configuration really
 *  needs to be cleaned up after the new config system is in place.
 */
void
ButtonConfigEnd ()
{
   buttonConfigInProgress = 0;
}

/**
 * Tests to see if a specified button is currently pressed.
 */
static int
DTestButton (ButtConfig * bc)
{

	if (bc->ButtType == BUTTC_KEYBOARD)
	{
		if (g_keyState[SDL_GetScancodeFromKey (bc->ButtonNum)])
		{
         bc->state = 1;
			return 1;
		}
      else
      {
         bc->state = 0;
      }
	}
	else if (bc->ButtType == BUTTC_JOYSTICK)
	{
		if (DTestButtonJoy (bc))
		{
			return 1;
		}
	}
	return 0;
}


#define MK(x)       {BUTTC_KEYBOARD,0,MKK(x),0}
//#define MK2(x1,x2)  {BUTTC_KEYBOARD,0,MKK(x1)}
#define MKZ()       {0,0,-1,0}
#define GPZ()       {MKZ(), MKZ(), MKZ(), MKZ()}

//ButtConfig GamePadConfig[ GAMEPAD_NUM_DEVICES ][ GAMEPAD_NUM_BUTTONS ] = 
//{
///* Gamepad 1 */
//	{MK (KP_3), MK (KP_2), MK (SLASH), MK (ENTER),
//	MK (w), MK (z), MK (a), MK (s), MKZ (), MKZ ()},
//
//	/* Gamepad 2 */
//	GPZ (),
//
//	/* Gamepad 3 */
//	GPZ (),
//
//	/* Gamepad 4 */
//	GPZ ()
//};

/**
 * Update the status of the gamepad input devices.
 */
static void
UpdateGamepad(void)
{
	// don't update during movie playback
	if (FCEUMOV_Mode (MOVIEMODE_PLAY))
	{
		return;
	 }

	static int rapid = 0;
	uint32 JS = 0;
	int x;
	int wg;

	rapid ^= 1;

	int opposite_dirs;
	g_config->getOption("SDL.Input.EnableOppositeDirectionals", &opposite_dirs);

	// go through each of the four game pads
	for (wg = 0; wg < 4; wg++)
	{
		bool left = false;
		bool up = false;
		// a, b, select, start, up, down, left, right
		for (x = 0; x < 8; x++)
		{
			if (DTestButton (&GamePad[wg].bmap[x]))
			{
				//printf("GamePad%i Button Hit: %i \n", wg, x );
				if(opposite_dirs == 0)
				{
					// test for left+right and up+down
					if(x == 4){
						up = true;
                    }
					if((x == 5) && (up == true)){
						continue;
                    }
					if(x == 6){
						left = true;
                    }
					if((x == 7) && (left == true)){
						continue;
                    }
				}
				JS |= (1 << x) << (wg << 3);
			}
		}

        int four_button_exit;
        g_config->getOption("SDL.ABStartSelectExit", &four_button_exit);
        // if a+b+start+select is pressed, exit
        if (four_button_exit && JS == 15) {
            FCEUI_printf("all buttons pressed, exiting\n");
            CloseGame();
            FCEUI_Kill();
            exit(0);
        }

		// rapid-fire a, rapid-fire b
		if (rapid)
		{
			for (x = 0; x < 2; x++)
			{
				if (DTestButton (&GamePad[wg].bmap[8 + x]))
				{
					JS |= (1 << x) << (wg << 3);
				}
			}
		}
	}

//  for(x=0;x<32;x+=8)      /* Now, test to see if anything weird(up+down at same time)
//                     is happening, and correct */
//  {
//   if((JS & (0xC0<<x) ) == (0xC0<<x) ) JS&=~(0xC0<<x);
//   if((JS & (0x30<<x) ) == (0x30<<x) ) JS&=~(0x30<<x);
//  }

	JSreturn = JS;
}

static ButtConfig powerpadsc[2][12] = {
	{
		MK (O), MK (P), MK (BRACKET_LEFT),
		MK (BRACKET_RIGHT), MK (K), MK (L), MK (SEMICOLON),
		MK (APOSTROPHE),
		MK (M), MK (COMMA), MK (PERIOD), MK (SLASH)},
	{
		MK (O), MK (P), MK (BRACKET_LEFT),
		MK (BRACKET_RIGHT), MK (K), MK (L), MK (SEMICOLON),
		MK (APOSTROPHE),
		MK (M), MK (COMMA), MK (PERIOD), MK (SLASH)}
};

static uint32 powerpadbuf[2] = { 0, 0 };

/**
 * Update the status of the power pad input device.
 */
static uint32
UpdatePPadData (int w)
{
	// don't update if a movie is playing
	if (FCEUMOV_Mode (MOVIEMODE_PLAY))
	{
		return 0;
	}

	uint32 r = 0;
	ButtConfig *ppadtsc = powerpadsc[w];
	int x;

	// update each of the 12 buttons
	for (x = 0; x < 12; x++)
	{
		if (DTestButton (&ppadtsc[x]))
		{
			r |= 1 << x;
		}
	}

	return r;
}

static uint32 MouseData[3] = { 0, 0, 0 };
static int32 MouseRelative[3] = { 0, 0, 0 };

static uint8 fkbkeys[0x48];

/**
 * Update all of the input devices required for the active game.
 */
void FCEUD_UpdateInput(void)
{
	int x;
	int t = 0;

   if ( buttonConfigInProgress )
   {
      return;
   }
	UpdatePhysicalInput ();
	KeyboardCommands ();

	for (x = 0; x < 2; x++)
	{
		switch (CurInputType[x])
		{
			case SI_GAMEPAD:
			case SI_SNES:
				t |= 1;
				break;
			case SI_ARKANOID:
				t |= 2;
				break;
			case SI_ZAPPER:
				t |= 2;
				break;
			case SI_POWERPADA:
			case SI_POWERPADB:
				powerpadbuf[x] = UpdatePPadData (x);
				break;
			case SI_MOUSE:
			case SI_SNES_MOUSE:
				t |= 4;
				break;
		}
	}

	switch (CurInputType[2])
	{
		case SIFC_ARKANOID:
			t |= 2;
			break;
		case SIFC_SHADOW:
			t |= 2;
			break;
		case SIFC_FKB:
			if (g_fkbEnabled)
			{
				UpdateFKB ();
			}
			break;
		case SIFC_HYPERSHOT:
			UpdateHyperShot ();
			break;
		case SIFC_MAHJONG:
			UpdateMahjong ();
			break;
		case SIFC_QUIZKING:
			UpdateQuizKing ();
			break;
		case SIFC_FTRAINERB:
		case SIFC_FTRAINERA:
			UpdateFTrainer ();
			break;
		case SIFC_TOPRIDER:
			UpdateTopRider ();
			break;
		case SIFC_OEKAKIDS:
			t |= 2;
			break;
	}

	if (t & 1)
	{
		UpdateGamepad ();
	}

	// Don't get input when a movie is playing back
	if (!FCEUMOV_Mode (MOVIEMODE_PLAY))
	{
		if (t & 2)
		{
			GetMouseData (MouseData);
		}
		if (t & 4)
		{
			GetMouseRelative (MouseRelative);
		}
	}
}

void FCEUD_SetInput (bool fourscore, bool microphone, ESI port0, ESI port1,
		ESIFC fcexp)
{
	eoptions &= ~EO_FOURSCORE;
	if (fourscore)
	{				// Four Score emulation, only support gamepads, nothing else
		eoptions |= EO_FOURSCORE;
		CurInputType[0] = SI_GAMEPAD;	// Controllers 1 and 3
		CurInputType[1] = SI_GAMEPAD;	// Controllers 2 and 4
		CurInputType[2] = SIFC_NONE;	// No extension
	}
	else
	{	
		// no Four Core emulation, check the config/movie file for controller types
		CurInputType[0] = port0;
		CurInputType[1] = port1;
		CurInputType[2] = fcexp;
	}

	replaceP2StartWithMicrophone = microphone;

	InitInputInterface ();
}

/**
 * Initialize the input device interface between the emulation and the driver.
 */
void InitInputInterface ()
{
	void *InputDPtr;

	int t = 0;
	int x = 0;
	int attrib;

   memset( g_keyState, 0, sizeof(g_keyState) );

	for (t = 0, x = 0; x < 2; x++)
	{
		attrib = 0;
		InputDPtr = 0;

		switch (CurInputType[x])
		{
			case SI_POWERPADA:
			case SI_POWERPADB:
				InputDPtr = &powerpadbuf[x];
				break;
			case SI_GAMEPAD:
			case SI_SNES:
				InputDPtr = &JSreturn;
				break;
			case SI_ARKANOID:
				InputDPtr = MouseData;
				t |= 1;
				break;
			case SI_ZAPPER:
				InputDPtr = MouseData;
				t |= 1;
				attrib = 1;
				break;
			case SI_MOUSE:
			case SI_SNES_MOUSE:
				InputDPtr = MouseRelative;
				t |= 1;
				break;
		}
		FCEUI_SetInput (x, (ESI) CurInputType[x], InputDPtr, attrib);
	}

	attrib = 0;
	InputDPtr = 0;
	switch (CurInputType[2])
	{
		case SIFC_SHADOW:
			InputDPtr = MouseData;
			t |= 1;
			attrib = 1;
			break;
		case SIFC_OEKAKIDS:
			InputDPtr = MouseData;
			t |= 1;
			attrib = 1;
			break;
		case SIFC_ARKANOID:
			InputDPtr = MouseData;
			t |= 1;
			break;
		case SIFC_FKB:
			InputDPtr = fkbkeys;
			break;
		case SIFC_HYPERSHOT:
			InputDPtr = &HyperShotData;
			break;
		case SIFC_MAHJONG:
			InputDPtr = &MahjongData;
			break;
		case SIFC_QUIZKING:
			InputDPtr = &QuizKingData;
			break;
		case SIFC_TOPRIDER:
			InputDPtr = &TopRiderData;
			break;
		case SIFC_BWORLD:
			InputDPtr = BWorldData;
			break;
		case SIFC_FTRAINERA:
		case SIFC_FTRAINERB:
			InputDPtr = &FTrainerData;
			break;
	}

	FCEUI_SetInputFC ((ESIFC) CurInputType[2], InputDPtr, attrib);
	FCEUI_SetInputFourscore ((eoptions & EO_FOURSCORE) != 0);
}


static ButtConfig fkbmap[0x48] = {
	MK (F1), MK (F2), MK (F3), MK (F4), MK (F5), MK (F6), MK (F7), MK (F8),
	MK (1), MK (2), MK (3), MK (4), MK (5), MK (6), MK (7), MK (8), MK (9),
	MK (0),
	MK (MINUS), MK (EQUAL), MK (BACKSLASH), MK (BACKSPACE),
	MK (ESCAPE), MK (Q), MK (W), MK (E), MK (R), MK (T), MK (Y), MK (U), MK (I),
	MK (O),
	MK (P), MK (GRAVE), MK (BRACKET_LEFT), MK (ENTER),
	MK (LEFTCONTROL), MK (A), MK (S), MK (D), MK (F), MK (G), MK (H), MK (J),
	MK (K),
	MK (L), MK (SEMICOLON), MK (APOSTROPHE), MK (BRACKET_RIGHT), MK (INSERT),
	MK (LEFTSHIFT), MK (Z), MK (X), MK (C), MK (V), MK (B), MK (N), MK (M),
	MK (COMMA),
	MK (PERIOD), MK (SLASH), MK (RIGHTALT), MK (RIGHTSHIFT), MK (LEFTALT),
	MK (SPACE),
	MK (DELETE), MK (END), MK (PAGEDOWN),
	MK (CURSORUP), MK (CURSORLEFT), MK (CURSORRIGHT), MK (CURSORDOWN)
};

/**
 * Update the status of the Family KeyBoard.
 */
static void UpdateFKB ()
{
	int x;

	for (x = 0; x < 0x48; x++)
	{
		fkbkeys[x] = 0;

		if (DTestButton (&fkbmap[x]))
		{
			fkbkeys[x] = 1;
		}
	}
}

static ButtConfig HyperShotButtons[4] = {
	MK (Q), MK (W), MK (E), MK (R)
};

/**
 * Update the status of the HyperShot input device.
 */
	static void
UpdateHyperShot ()
{
	int x;

	HyperShotData = 0;
	for (x = 0; x < 0x4; x++)
	{
		if (DTestButton (&HyperShotButtons[x]))
		{
			HyperShotData |= 1 << x;
		}
	}
}

static ButtConfig MahjongButtons[21] = {
	MK (Q), MK (W), MK (E), MK (R), MK (T),
	MK (A), MK (S), MK (D), MK (F), MK (G), MK (H), MK (J), MK (K), MK (L),
	MK (Z), MK (X), MK (C), MK (V), MK (B), MK (N), MK (M)
};

/**
 * Update the status of for the Mahjong input device.
 */
	static void
UpdateMahjong ()
{
	int x;

	MahjongData = 0;
	for (x = 0; x < 21; x++)
	{
		if (DTestButton (&MahjongButtons[x]))
		{
			MahjongData |= 1 << x;
		}
	}
}

static ButtConfig QuizKingButtons[6] = {
	MK (Q), MK (W), MK (E), MK (R), MK (T), MK (Y)
};

/**
 * Update the status of the QuizKing input device.
 */
	static void
UpdateQuizKing ()
{
	int x;

	QuizKingData = 0;

	for (x = 0; x < 6; x++)
	{
		if (DTestButton (&QuizKingButtons[x]))
		{
			QuizKingData |= 1 << x;
		}
	}
}

static ButtConfig TopRiderButtons[8] = {
	MK (Q), MK (W), MK (E), MK (R), MK (T), MK (Y), MK (U), MK (I)
};

/**
 * Update the status of the TopRider input device.
 */
	static void
UpdateTopRider ()
{
	int x;
	TopRiderData = 0;
	for (x = 0; x < 8; x++)
	{
		if (DTestButton (&TopRiderButtons[x]))
		{
			TopRiderData |= (1 << x);
		}
	}
}

static ButtConfig FTrainerButtons[12] = {
	MK (O), MK (P), MK (BRACKET_LEFT),
	MK (BRACKET_RIGHT), MK (K), MK (L), MK (SEMICOLON),
	MK (APOSTROPHE),
	MK (M), MK (COMMA), MK (PERIOD), MK (SLASH)
};

/**
 * Update the status of the FTrainer input device.
 */
	static void
UpdateFTrainer ()
{
	int x;
	FTrainerData = 0;

	for (x = 0; x < 12; x++)
	{
		if (DTestButton (&FTrainerButtons[x]))
		{
			FTrainerData |= (1 << x);
		}
	}
}

/**
 * Get the display name of the key or joystick button mapped to a specific 
 * NES gamepad button.
 * @param bc the NES gamepad's button config
 * @param which the index of the button
 */
const char * ButtonName (const ButtConfig * bc)
{
	static char name[256];

	name[0] = 0;

	if (bc->ButtonNum == -1)
	{
		return name;
	}
	switch (bc->ButtType)
	{
		case BUTTC_KEYBOARD:
			return SDL_GetKeyName (bc->ButtonNum);
		break;
		case BUTTC_JOYSTICK:
		{
			int joyNum, inputNum;
			const char *inputType, *inputDirection;

			joyNum = bc->DeviceNum;

			if (bc->ButtonNum & 0x8000)
			{
				inputType = "Axis";
				inputNum = bc->ButtonNum & 0x3FFF;
				inputDirection = bc->ButtonNum & 0x4000 ? "-" : "+";
			}
			else if (bc->ButtonNum & 0x2000)
			{
				int inputValue;
				char direction[128] = "";

				inputType = "Hat";
				inputNum = (bc->ButtonNum >> 8) & 0x1F;
				inputValue = bc->ButtonNum & 0xF;

				if (inputValue & SDL_HAT_UP)
					strncat (direction, "Up ", sizeof (direction)-1);
				if (inputValue & SDL_HAT_DOWN)
					strncat (direction, "Down ", sizeof (direction)-1);
				if (inputValue & SDL_HAT_LEFT)
					strncat (direction, "Left ", sizeof (direction)-1);
				if (inputValue & SDL_HAT_RIGHT)
					strncat (direction, "Right ", sizeof (direction)-1);

				if (direction[0])
					inputDirection = direction;
				else
					inputDirection = "Center";
			}
			else
			{
				inputType = "Button";
				inputNum = bc->ButtonNum;
				inputDirection = "";
			}
			sprintf( name, "js%i:%s%i%s", joyNum, inputType, inputNum, inputDirection );
		}
		break;
	}

	return name;
}

/**
 * Waits for a button input and returns the information as to which
 * button was pressed.  Used in button configuration.
 */
int DWaitButton (const uint8_t * text, ButtConfig * bc, int *buttonConfigStatus )
{
	SDL_Event event;
	static int32 LastAx[64][64];
	int x, y;
   int timeout_ms = 10000;

	if (text)
	{
		std::string title = "Press a key for ";
		title += (const char *) text;
		// TODO - SDL2
		//SDL_WM_SetCaption (title.c_str (), 0);
		puts ((const char *) text);
	}

	for (x = 0; x < 64; x++)
	{
		for (y = 0; y < 64; y++)
		{
			LastAx[x][y] = 0x100000;
		}
	}

	// Purge all pending events, so that this next button press 
	// will be the one we want.
	while (SDL_PollEvent (&event))
	{

	}

	while (1)
	{
		int done = 0;
		
      usleep(10000);
      timeout_ms -= 10;

      if ( timeout_ms <= 0 )
      {
         break;
      }
#ifdef _GTK
		while (gtk_events_pending ())
			gtk_main_iteration_do (FALSE);
#endif
		while (SDL_PollEvent (&event))
		{
			printf("Event Type: %i \n", event.type );
			done++;
			switch (event.type)
			{
				case SDL_KEYDOWN:
               //printf("SDL KeyDown:%i \n", event.key.keysym.sym );
					bc->ButtType = BUTTC_KEYBOARD;
					bc->DeviceNum = 0;
					bc->ButtonNum = event.key.keysym.sym;
					return (1);
				case SDL_JOYBUTTONDOWN:
					bc->ButtType = BUTTC_JOYSTICK;
					bc->DeviceNum = event.jbutton.which;
					bc->ButtonNum = event.jbutton.button;
					return (1);
				case SDL_JOYHATMOTION:
					if (event.jhat.value == SDL_HAT_CENTERED)
						done--;
					else
					{
						bc->ButtType = BUTTC_JOYSTICK;
						bc->DeviceNum = event.jhat.which;
						bc->ButtonNum =
							(0x2000 | ((event.jhat.hat & 0x1F) << 8) | event.
							 jhat.value);
						return (1);
					}
					break;
				case SDL_JOYAXISMOTION:
					if (LastAx[event.jaxis.which][event.jaxis.axis] == 0x100000)
					{
						if (abs (event.jaxis.value) < 1000)
						{
							LastAx[event.jaxis.which][event.jaxis.axis] =
								event.jaxis.value;
						}
						done--;
					}
					else
					{
						if (abs
								(LastAx[event.jaxis.which][event.jaxis.axis] -
								 event.jaxis.value) >= 8192)
						{
							bc->ButtType = BUTTC_JOYSTICK;
							bc->DeviceNum = event.jaxis.which;
							bc->ButtonNum = (0x8000 | event.jaxis.axis |
									((event.jaxis.value < 0)
									 ? 0x4000 : 0));
							return (1);
						}
						else
							done--;
					}
					break;
				default:
					done--;
			}
		}
		if (done)
			break;

		// If the button config window is Closed, 
		// get out of loop.
		if ( buttonConfigStatus != NULL )
		{
			if ( *buttonConfigStatus == 0 )
			{
				break;
			}
		}
	}

	return (0);
}

/**
 * This function takes in button inputs until either it sees two of
 * the same button presses in a row or gets four inputs and then saves
 * the total number of button presses.  Each of the keys pressed is
 * used as input for the specified button, thus allowing up to four
 * possible settings for each input button.
 */
//	void
//ConfigButton (char *text, ButtConfig * bc)
//{
//	uint8 buf[256];
//	int wc;
//
//	for (wc = 0; wc < MAXBUTTCONFIG; wc++)
//	{
//		sprintf ((char *) buf, "%s (%d)", text, wc + 1);
//		DWaitButton (buf, bc, wc, NULL);
//
//		if (wc &&
//				bc->ButtType[wc] == bc->ButtType[wc - 1] &&
//				bc->DeviceNum[wc] == bc->DeviceNum[wc - 1] &&
//				bc->ButtonNum[wc] == bc->ButtonNum[wc - 1])
//		{
//			break;
//		}
//	}
//}

/**
 * Update the button configuration for a specified device.
 */
extern Config *g_config;

//void ConfigDevice (int which, int arg)
//{
//	char buf[256];
//	int x;
//	std::string prefix;
//	const char *str[10] =
//	{ "A", "B", "SELECT", "START", "UP", "DOWN", "LEFT", "RIGHT", "Rapid A",
//		"Rapid B"
//	};
//
//	// XXX soules - set the configuration options so that later calls
//	//              don't override these.  This is a temp hack until I
//	//              can clean up this file.
//
//	ButtonConfigBegin ();
//	switch (which)
//	{
//		case FCFGD_QUIZKING:
//			prefix = "SDL.Input.QuizKing.";
//			for (x = 0; x < 6; x++)
//			{
//				sprintf (buf, "Quiz King Buzzer #%d", x + 1);
//				ConfigButton (buf, &QuizKingButtons[x]);
//
//				g_config->setOption (prefix + QuizKingNames[x],
//						QuizKingButtons[x].ButtonNum);
//			}
//
//			if (QuizKingButtons[0].ButtType == BUTTC_KEYBOARD)
//			{
//				g_config->setOption (prefix + "DeviceType", "Keyboard");
//			}
//			else if (QuizKingButtons[0].ButtType == BUTTC_JOYSTICK)
//			{
//				g_config->setOption (prefix + "DeviceType", "Joystick");
//			}
//			else
//			{
//				g_config->setOption (prefix + "DeviceType", "Unknown");
//			}
//			g_config->setOption (prefix + "DeviceNum",
//					QuizKingButtons[0].DeviceNum);
//			break;
//		case FCFGD_HYPERSHOT:
//			prefix = "SDL.Input.HyperShot.";
//			for (x = 0; x < 4; x++)
//			{
//				sprintf (buf, "Hyper Shot %d: %s",
//						((x & 2) >> 1) + 1, (x & 1) ? "JUMP" : "RUN");
//				ConfigButton (buf, &HyperShotButtons[x]);
//
//				g_config->setOption (prefix + HyperShotNames[x],
//						HyperShotButtons[x].ButtonNum);
//			}
//
//			if (HyperShotButtons[0].ButtType == BUTTC_KEYBOARD)
//			{
//				g_config->setOption (prefix + "DeviceType", "Keyboard");
//			}
//			else if (HyperShotButtons[0].ButtType == BUTTC_JOYSTICK)
//			{
//				g_config->setOption (prefix + "DeviceType", "Joystick");
//			}
//			else
//			{
//				g_config->setOption (prefix + "DeviceType", "Unknown");
//			}
//			g_config->setOption (prefix + "DeviceNum",
//					HyperShotButtons[0].DeviceNum);
//			break;
//		case FCFGD_POWERPAD:
//			snprintf (buf, 256, "SDL.Input.PowerPad.%d", (arg & 1));
//			prefix = buf;
//			for (x = 0; x < 12; x++)
//			{
//				sprintf (buf, "PowerPad %d: %d", (arg & 1) + 1, x + 11);
//				ConfigButton (buf, &powerpadsc[arg & 1][x]);
//
//				g_config->setOption (prefix + PowerPadNames[x],
//						powerpadsc[arg & 1][x].ButtonNum);
//			}
//
//			if (powerpadsc[arg & 1][0].ButtType == BUTTC_KEYBOARD)
//			{
//				g_config->setOption (prefix + "DeviceType", "Keyboard");
//			}
//			else if (powerpadsc[arg & 1][0].ButtType == BUTTC_JOYSTICK)
//			{
//				g_config->setOption (prefix + "DeviceType", "Joystick");
//			}
//			else
//			{
//				g_config->setOption (prefix + "DeviceType", "Unknown");
//			}
//			g_config->setOption (prefix + "DeviceNum",
//					powerpadsc[arg & 1][0].DeviceNum);
//			break;
//
//		case FCFGD_GAMEPAD:
//			snprintf (buf, 256, "SDL.Input.GamePad.%d", arg);
//			prefix = buf;
//			for (x = 0; x < 10; x++)
//			{
//				sprintf (buf, "GamePad #%d: %s", arg + 1, str[x]);
//				ConfigButton (buf, &GamePadConfig[arg][x]);
//
//				g_config->setOption (prefix + GamePadNames[x],
//						GamePadConfig[arg][x].ButtonNum);
//			}
//
//			if (GamePadConfig[arg][0].ButtType == BUTTC_KEYBOARD)
//			{
//				g_config->setOption (prefix + "DeviceType", "Keyboard");
//			}
//			else if (GamePadConfig[arg][0].ButtType == BUTTC_JOYSTICK)
//			{
//				g_config->setOption (prefix + "DeviceType", "Joystick");
//			}
//			else
//			{
//				g_config->setOption (prefix + "DeviceType", "Unknown");
//			}
//			g_config->setOption (prefix + "DeviceNum",
//					GamePadConfig[arg][0].DeviceNum);
//			break;
//	}
//
//	ButtonConfigEnd ();
//}


/**
 * Update the button configuration for a device, specified by a text string.
 */
//void InputCfg (const std::string & text)
//{
//
//	if (noGui)
//	{
//		if (text.find ("gamepad") != std::string::npos)
//		{
//			int device = (text[strlen ("gamepad")] - '1');
//			if (device < 0 || device > 3)
//			{
//				FCEUD_PrintError
//					("Invalid gamepad device specified; must be one of gamepad1 through gamepad4");
//				exit (-1);
//			}
//			ConfigDevice (FCFGD_GAMEPAD, device);
//		}
//		else if (text.find ("powerpad") != std::string::npos)
//		{
//			int device = (text[strlen ("powerpad")] - '1');
//			if (device < 0 || device > 1)
//			{
//				FCEUD_PrintError
//					("Invalid powerpad device specified; must be powerpad1 or powerpad2");
//				exit (-1);
//			}
//			ConfigDevice (FCFGD_POWERPAD, device);
//		}
//		else if (text.find ("hypershot") != std::string::npos)
//		{
//			ConfigDevice (FCFGD_HYPERSHOT, 0);
//		}
//		else if (text.find ("quizking") != std::string::npos)
//		{
//			ConfigDevice (FCFGD_QUIZKING, 0);
//		}
//	}
//	else
//		printf ("Please run \"fceux --nogui\" before using --inputcfg\n");
//
//}


/**
 * Hack to map the new configuration onto the existing button
 * configuration management.  Will probably want to change this in the
 * future - soules.
 */
	void
UpdateInput (Config * config)
{
	char buf[64];
	std::string device, prefix, guid, mapping;

	InitJoysticks();

	for (unsigned int i = 0; i < 3; i++)
	{
		snprintf (buf, 64, "SDL.Input.%u", i);
		config->getOption (buf, &device);

		if (device == "None")
		{
			UsrInputType[i] = SI_NONE;
		}
		else if (device.find ("GamePad") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_GAMEPAD : (int) SIFC_NONE;
		}
		else if (device.find ("PowerPad.0") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_POWERPADA : (int) SIFC_NONE;
		}
		else if (device.find ("PowerPad.1") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_POWERPADB : (int) SIFC_NONE;
		}
		else if (device.find ("QuizKing") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_QUIZKING;
		}
		else if (device.find ("HyperShot") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_HYPERSHOT;
		}
		else if (device.find ("Mahjong") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_MAHJONG;
		}
		else if (device.find ("TopRider") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_TOPRIDER;
		}
		else if (device.find ("FTrainer") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_FTRAINERA;
		}
		else if (device.find ("FamilyKeyBoard") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_FKB;
		}
		else if (device.find ("OekaKids") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_OEKAKIDS;
		}
		else if (device.find ("Arkanoid") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_ARKANOID : (int) SIFC_ARKANOID;
		}
		else if (device.find ("Shadow") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_SHADOW;
		}
		else if (device.find ("Zapper") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_ZAPPER : (int) SIFC_NONE;
		}
		else if (device.find ("BWorld") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_BWORLD;
		}
		else if (device.find ("4Player") != std::string::npos)
		{
			UsrInputType[i] = (i < 2) ? (int) SI_NONE : (int) SIFC_4PLAYER;
		}
		else
		{
			// Unknown device
			UsrInputType[i] = SI_NONE;
		}
	}

	// update each of the devices' configuration structure
	// XXX soules - this is temporary until this file is cleaned up to
	//              simplify the interface between configuration and
	//              structure data.  This will likely include the
	//              removal of multiple input buttons for a single
	//              input device key.
	int type, devnum, button;

	// gamepad 0 - 3
	for (unsigned int i = 0; i < GAMEPAD_NUM_DEVICES; i++)
	{
		char buf[64];
		snprintf (buf, sizeof(buf)-1, "SDL.Input.GamePad.%u.", i);
		prefix = buf;

		config->getOption (prefix + "DeviceType", &device );
		config->getOption (prefix + "DeviceGUID", &guid   );
		config->getOption (prefix + "Profile"   , &mapping);

		GamePad[i].init( i, guid.c_str(), mapping.c_str() );
	}

	// PowerPad 0 - 1
	for (unsigned int i = 0; i < POWERPAD_NUM_DEVICES; i++)
	{
		char buf[64];
		snprintf (buf, sizeof(buf)-1, "SDL.Input.PowerPad.%u.", i);
		prefix = buf;

		config->getOption (prefix + "DeviceType", &device);
		if (device.find ("Keyboard") != std::string::npos)
		{
			type = BUTTC_KEYBOARD;
		}
		else if (device.find ("Joystick") != std::string::npos)
		{
			type = BUTTC_JOYSTICK;
		}
		else
		{
			type = 0;
		}

		config->getOption (prefix + "DeviceNum", &devnum);
		for (unsigned int j = 0; j < POWERPAD_NUM_BUTTONS; j++)
		{
			config->getOption (prefix + PowerPadNames[j], &button);

			powerpadsc[i][j].ButtType = type;
			powerpadsc[i][j].DeviceNum = devnum;
			powerpadsc[i][j].ButtonNum = button;
		}
	}

	// QuizKing
	prefix = "SDL.Input.QuizKing.";
	config->getOption (prefix + "DeviceType", &device);
	if (device.find ("Keyboard") != std::string::npos)
	{
		type = BUTTC_KEYBOARD;
	}
	else if (device.find ("Joystick") != std::string::npos)
	{
		type = BUTTC_JOYSTICK;
	}
	else
	{
		type = 0;
	}
	config->getOption (prefix + "DeviceNum", &devnum);
	for (unsigned int j = 0; j < QUIZKING_NUM_BUTTONS; j++)
	{
		config->getOption (prefix + QuizKingNames[j], &button);

		QuizKingButtons[j].ButtType = type;
		QuizKingButtons[j].DeviceNum = devnum;
		QuizKingButtons[j].ButtonNum = button;
	}

	// HyperShot
	prefix = "SDL.Input.HyperShot.";
	config->getOption (prefix + "DeviceType", &device);
	if (device.find ("Keyboard") != std::string::npos)
	{
		type = BUTTC_KEYBOARD;
	}
	else if (device.find ("Joystick") != std::string::npos)
	{
		type = BUTTC_JOYSTICK;
	}
	else
	{
		type = 0;
	}
	config->getOption (prefix + "DeviceNum", &devnum);
	for (unsigned int j = 0; j < HYPERSHOT_NUM_BUTTONS; j++)
	{
		config->getOption (prefix + HyperShotNames[j], &button);

		HyperShotButtons[j].ButtType = type;
		HyperShotButtons[j].DeviceNum = devnum;
		HyperShotButtons[j].ButtonNum = button;
	}

	// Mahjong
	prefix = "SDL.Input.Mahjong.";
	config->getOption (prefix + "DeviceType", &device);
	if (device.find ("Keyboard") != std::string::npos)
	{
		type = BUTTC_KEYBOARD;
	}
	else if (device.find ("Joystick") != std::string::npos)
	{
		type = BUTTC_JOYSTICK;
	}
	else
	{
		type = 0;
	}
	config->getOption (prefix + "DeviceNum", &devnum);
	for (unsigned int j = 0; j < MAHJONG_NUM_BUTTONS; j++)
	{
		config->getOption (prefix + MahjongNames[j], &button);

		MahjongButtons[j].ButtType = type;
		MahjongButtons[j].DeviceNum = devnum;
		MahjongButtons[j].ButtonNum = button;
	}

	// TopRider
	prefix = "SDL.Input.TopRider.";
	config->getOption (prefix + "DeviceType", &device);
	if (device.find ("Keyboard") != std::string::npos)
	{
		type = BUTTC_KEYBOARD;
	}
	else if (device.find ("Joystick") != std::string::npos)
	{
		type = BUTTC_JOYSTICK;
	}
	else
	{
		type = 0;
	}
	config->getOption (prefix + "DeviceNum", &devnum);
	for (unsigned int j = 0; j < TOPRIDER_NUM_BUTTONS; j++)
	{
		config->getOption (prefix + TopRiderNames[j], &button);

		TopRiderButtons[j].ButtType = type;
		TopRiderButtons[j].DeviceNum = devnum;
		TopRiderButtons[j].ButtonNum = button;
	}

	// FTrainer
	prefix = "SDL.Input.FTrainer.";
	config->getOption (prefix + "DeviceType", &device);
	if (device.find ("Keyboard") != std::string::npos)
	{
		type = BUTTC_KEYBOARD;
	}
	else if (device.find ("Joystick") != std::string::npos)
	{
		type = BUTTC_JOYSTICK;
	}
	else
	{
		type = 0;
	}
	config->getOption (prefix + "DeviceNum", &devnum);
	for (unsigned int j = 0; j < FTRAINER_NUM_BUTTONS; j++)
	{
		config->getOption (prefix + FTrainerNames[j], &button);

		FTrainerButtons[j].ButtType = type;
		FTrainerButtons[j].DeviceNum = devnum;
		FTrainerButtons[j].ButtonNum = button;
	}

	// FamilyKeyBoard
	prefix = "SDL.Input.FamilyKeyBoard.";
	config->getOption (prefix + "DeviceType", &device);
	if (device.find ("Keyboard") != std::string::npos)
	{
		type = BUTTC_KEYBOARD;
	}
	else if (device.find ("Joystick") != std::string::npos)
	{
		type = BUTTC_JOYSTICK;
	}
	else
	{
		type = 0;
	}
	config->getOption (prefix + "DeviceNum", &devnum);
	for (unsigned int j = 0; j < FAMILYKEYBOARD_NUM_BUTTONS; j++)
	{
		config->getOption (prefix + FamilyKeyBoardNames[j], &button);

		fkbmap[j].ButtType = type;
		fkbmap[j].DeviceNum = devnum;
		fkbmap[j].ButtonNum = button;
	}
}

// Definitions from main.h:
// GamePad defaults
const char *GamePadNames[GAMEPAD_NUM_BUTTONS] = { "A", "B", "Select", "Start",
	"Up", "Down", "Left", "Right", "TurboA", "TurboB"
};
const char *DefaultGamePadDevice[GAMEPAD_NUM_DEVICES] =
{ "Keyboard", "None", "None", "None" };
const int DefaultGamePad[GAMEPAD_NUM_DEVICES][GAMEPAD_NUM_BUTTONS] =
{ {SDLK_f, SDLK_d, SDLK_s, SDLK_RETURN,
	SDLK_UP, SDLK_DOWN, SDLK_LEFT, SDLK_RIGHT, -1, -1},
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}
};

// PowerPad defaults
const char *PowerPadNames[POWERPAD_NUM_BUTTONS] =
{ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B" };
const char *DefaultPowerPadDevice[POWERPAD_NUM_DEVICES] =
{ "Keyboard", "None" };
const int DefaultPowerPad[POWERPAD_NUM_DEVICES][POWERPAD_NUM_BUTTONS] =
{ {SDLK_o, SDLK_p, SDLK_LEFTBRACKET, SDLK_RIGHTBRACKET,
	SDLK_k, SDLK_l, SDLK_SEMICOLON, SDLK_QUOTE,
	SDLK_m, SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
};

// QuizKing defaults
const char *QuizKingNames[QUIZKING_NUM_BUTTONS] =
{ "0", "1", "2", "3", "4", "5" };
const char *DefaultQuizKingDevice = "Keyboard";
const int DefaultQuizKing[QUIZKING_NUM_BUTTONS] =
{ SDLK_q, SDLK_w, SDLK_e, SDLK_r, SDLK_t, SDLK_y };

// HyperShot defaults
const char *HyperShotNames[HYPERSHOT_NUM_BUTTONS] = { "0", "1", "2", "3" };

const char *DefaultHyperShotDevice = "Keyboard";
const int DefaultHyperShot[HYPERSHOT_NUM_BUTTONS] =
{ SDLK_q, SDLK_w, SDLK_e, SDLK_r };

// Mahjong defaults
const char *MahjongNames[MAHJONG_NUM_BUTTONS] =
{ "00", "01", "02", "03", "04", "05", "06", "07",
	"08", "09", "10", "11", "12", "13", "14", "15",
	"16", "17", "18", "19", "20"
};

const char *DefaultMahjongDevice = "Keyboard";
const int DefaultMahjong[MAHJONG_NUM_BUTTONS] =
{ SDLK_q, SDLK_w, SDLK_e, SDLK_r, SDLK_t, SDLK_a, SDLK_s, SDLK_d,
	SDLK_f, SDLK_g, SDLK_h, SDLK_j, SDLK_k, SDLK_l, SDLK_z, SDLK_x,
	SDLK_c, SDLK_v, SDLK_b, SDLK_n, SDLK_m
};

// TopRider defaults
const char *TopRiderNames[TOPRIDER_NUM_BUTTONS] =
{ "0", "1", "2", "3", "4", "5", "6", "7" };
const char *DefaultTopRiderDevice = "Keyboard";
const int DefaultTopRider[TOPRIDER_NUM_BUTTONS] =
{ SDLK_q, SDLK_w, SDLK_e, SDLK_r, SDLK_t, SDLK_y, SDLK_u, SDLK_i };

// FTrainer defaults
const char *FTrainerNames[FTRAINER_NUM_BUTTONS] =
{ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B" };
const char *DefaultFTrainerDevice = "Keyboard";
const int DefaultFTrainer[FTRAINER_NUM_BUTTONS] =
{ SDLK_o, SDLK_p, SDLK_LEFTBRACKET, SDLK_RIGHTBRACKET,
	SDLK_k, SDLK_l, SDLK_SEMICOLON, SDLK_QUOTE,
	SDLK_m, SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH
};

// FamilyKeyBoard defaults
const char *FamilyKeyBoardNames[FAMILYKEYBOARD_NUM_BUTTONS] =
{ "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8",
	"1", "2", "3", "4", "5", "6", "7", "8", "9", "0",
	"MINUS", "EQUAL", "BACKSLASH", "BACKSPACE",
	"ESCAPE", "Q", "W", "E", "R", "T", "Y", "U", "I", "O",
	"P", "GRAVE", "BRACKET_LEFT", "ENTER",
	"LEFTCONTROL", "A", "S", "D", "F", "G", "H", "J", "K",
	"L", "SEMICOLON", "APOSTROPHE", "BRACKET_RIGHT", "INSERT",
	"LEFTSHIFT", "Z", "X", "C", "V", "B", "N", "M", "COMMA",
	"PERIOD", "SLASH", "RIGHTALT", "RIGHTSHIFT", "LEFTALT", "SPACE",
	"DELETE", "END", "PAGEDOWN",
	"CURSORUP", "CURSORLEFT", "CURSORRIGHT", "CURSORDOWN"
};

const char *DefaultFamilyKeyBoardDevice = "Keyboard";
const int DefaultFamilyKeyBoard[FAMILYKEYBOARD_NUM_BUTTONS] =
{ SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F7, SDLK_F8,
	SDLK_1, SDLK_2, SDLK_3, SDLK_4, SDLK_5,
	SDLK_6, SDLK_7, SDLK_8, SDLK_9, SDLK_0,
	SDLK_MINUS, SDLK_EQUALS, SDLK_BACKSLASH, SDLK_BACKSPACE,
	SDLK_ESCAPE, SDLK_q, SDLK_w, SDLK_e, SDLK_r, SDLK_t, SDLK_y, SDLK_u,
	SDLK_i, SDLK_o, SDLK_p, SDLK_BACKQUOTE, SDLK_LEFTBRACKET, SDLK_RETURN,
	SDLK_LCTRL, SDLK_a, SDLK_s, SDLK_d, SDLK_f, SDLK_g, SDLK_h, SDLK_j,
	SDLK_k, SDLK_l, SDLK_SEMICOLON, SDLK_QUOTE, SDLK_RIGHTBRACKET,
	SDLK_INSERT, SDLK_LSHIFT, SDLK_z, SDLK_x, SDLK_c, SDLK_v, SDLK_b,
	SDLK_n, SDLK_m, SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH, SDLK_RALT,
	SDLK_RSHIFT, SDLK_LALT, SDLK_SPACE, SDLK_DELETE, SDLK_END, SDLK_PAGEDOWN,
	SDLK_UP, SDLK_LEFT, SDLK_RIGHT, SDLK_DOWN
};