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view src/joystick/mint/SDL_sysjoystick.c @ 4170:092c0bc69155 SDL-1.2

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Fixed bug #618 Description From Tim Angus 2008-08-30 12:23:56 (-) [reply] As we all know SDL 1.2 doesn't handle dead keys well since one key press potentially equals two (or more) characters. For example, on many layouts, keying <backquote>,<space> results in <no character>,<backquote><space>. Since the unicode member of the SDL_keysym struct only has room for one character, only one can be returned. On Linux, the first character is returned. On Windows however, unless the exact number of characters generated by the keypress is 1, nothing is returned. The following patch addresses this inconsistency. Updated patch which includes a further fix to the handling of the numpad when numlock is on. This further fix is courtesy Amanieu d'Antras.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Apr 2009 08:42:09 +0000
parents a1b03ba2fcd0
children 3370c734fd49
line wrap: on
line source

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifdef SDL_JOYSTICK_MINT

/*
 *	Atari Joystick/Joypad drivers
 *
 *	Patrice Mandin
 */

#include <mint/cookie.h>
#include <mint/osbind.h>

#include "SDL_events.h"
#include "../SDL_sysjoystick.h"
#include "../SDL_joystick_c.h"

#include "../../video/ataricommon/SDL_ikbdinterrupt_s.h"
#include "../../video/ataricommon/SDL_xbiosevents_c.h"
#include "../../video/ataricommon/SDL_xbiosinterrupt_s.h"

/*--- Const ---*/

/* We can have:
	1 joystick on IKBD port 1, read via hardware I/O
	  or same joystick on IKBD port 1, read via xbios
	1 joypad on port A (up to 4 with teamtap)
	  or 2 joysticks on joypad port A
	  or 1 analog paddle on joypad port A
	  or 1 lightpen on joypad port A
	1 joypad on port B (up to 4 with teamtap)
	  or 2 joysticks on joypad port B
	  or 1 analog paddle on joypad port B
	2 joysticks on parallel port
*/

enum {
	IKBD_JOY1=0,
	XBIOS_JOY1,
	PORTA_PAD0,
	PORTA_PAD1,
	PORTA_PAD2,
	PORTA_PAD3,
	PORTB_PAD0,
	PORTB_PAD1,
	PORTB_PAD2,
	PORTB_PAD3,
	PORTA_JOY0,
	PORTA_JOY1,
	PORTB_JOY0,
	PORTB_JOY1,
	PORTA_LP,
	PORTA_ANPAD,
	PORTB_ANPAD,
#if 0
	PARA_JOY0,
	PARA_JOY1,
#endif
	MAX_JOYSTICKS
};

enum {
	MCH_ST=0,
	MCH_STE,
	MCH_TT,
	MCH_F30,
	MCH_CLONE,
	MCH_ARANYM
};

/*	Joypad buttons
 *		Procontroller note:
 *			L,R are connected to 4,6
 *			X,Y,Z are connected to 7,8,9
 */

enum {
	JP_UP=0,	JP_DOWN,	JP_LEFT,	JP_RIGHT,
	JP_KPMULT,	JP_KP7,		JP_KP4,		JP_KP1,
	JP_KP0,		JP_KP8,		JP_KP5,		JP_KP2,
	JP_KPNUM,	JP_KP9,		JP_KP6,		JP_KP3,
	JP_PAUSE,	JP_FIRE0,	JP_UNDEF0,	JP_FIRE1,
	JP_UNDEF1,	JP_FIRE2,	JP_UNDEF2,	JP_OPTION
};

#define JP_NUM_BUTTONS 17

#define PORT_JS_RIGHT	(1<<0)
#define PORT_JS_LEFT	(1<<1)
#define PORT_JS_DOWN	(1<<2)
#define PORT_JS_UP		(1<<3)
#define PORT_JS_FIRE	(1<<4)

/*--- Types ---*/

typedef struct {
	SDL_bool enabled;
	unsigned char *name;
	Uint32 prevstate;
} atarijoy_t;

/*--- Variables ---*/

static atarijoy_t atarijoysticks[MAX_JOYSTICKS]={
	{SDL_FALSE,"IKBD joystick port 1",0},
	{SDL_FALSE,"Xbios joystick port 1",0},
	{SDL_FALSE,"Joypad 0 port A",0},
	{SDL_FALSE,"Joypad 1 port A",0},
	{SDL_FALSE,"Joypad 2 port A",0},
	{SDL_FALSE,"Joypad 3 port A",0},
	{SDL_FALSE,"Joypad 0 port B",0},
	{SDL_FALSE,"Joypad 1 port B",0},
	{SDL_FALSE,"Joypad 2 port B",0},
	{SDL_FALSE,"Joypad 3 port B",0},
	{SDL_FALSE,"Joystick 0 port A",0},
	{SDL_FALSE,"Joystick 1 port A",0},
	{SDL_FALSE,"Joystick 0 port B",0},
	{SDL_FALSE,"Joystick 1 port B",0},
	{SDL_FALSE,"Lightpen port A",0},
	{SDL_FALSE,"Analog paddle port A",0},
	{SDL_FALSE,"Analog paddle port B",0}
#if 0
	,{SDL_FALSE,"Joystick 0 parallel port",0},
	{SDL_FALSE,"Joystick 1 parallel port",0}
#endif
};

static const int jp_buttons[JP_NUM_BUTTONS]={
	JP_FIRE0,	JP_FIRE1,	JP_FIRE2,	JP_PAUSE,
	JP_OPTION,	JP_KPMULT,	JP_KPNUM,	JP_KP0,
	JP_KP1,		JP_KP2,		JP_KP3,		JP_KP4,
	JP_KP5,		JP_KP6,		JP_KP7,		JP_KP8,
	JP_KP9
};

static SDL_bool joypad_ports_enabled=SDL_FALSE;

/* Updated joypad ports */
static Uint16 jp_paddles[4];
static Uint16 jp_lightpens[2];
static Uint16 jp_directions;
static Uint16 jp_fires;
static Uint32 jp_joypads[8];

/*--- Functions prototypes ---*/

static int GetEnabledAtariJoystick(int index);
static void UpdateJoypads(void);

/*--- Functions ---*/

int SDL_SYS_JoystickInit(void)
{
	int i;
	unsigned long cookie_mch;
	const char *envr=SDL_getenv("SDL_JOYSTICK_ATARI");
	
#define TEST_JOY_ENABLED(env,idstring,num) \
	if (SDL_strstr(env,idstring"-off")) { \
		atarijoysticks[num].enabled=SDL_FALSE; \
	} \
	if (SDL_strstr(env,idstring"-on")) { \
		atarijoysticks[num].enabled=SDL_TRUE; \
	}

	/* Cookie _MCH present ? if not, assume ST machine */
	if (Getcookie(C__MCH, &cookie_mch) != C_FOUND) {
		cookie_mch = MCH_ST << 16;
	}

	/* Enable some default joysticks */
	if ((cookie_mch == MCH_ST<<16) || ((cookie_mch>>16) == MCH_STE) ||
		(cookie_mch == MCH_TT<<16) || (cookie_mch == MCH_F30<<16) ||
		(cookie_mch == MCH_ARANYM<<16)) {
		atarijoysticks[IKBD_JOY1].enabled=(SDL_AtariIkbd_enabled!=0);
	}
	if ((cookie_mch == MCH_STE<<16) || (cookie_mch == MCH_F30<<16)) {
		atarijoysticks[PORTA_PAD0].enabled = 
			atarijoysticks[PORTA_PAD1].enabled =
			atarijoysticks[PORTA_PAD2].enabled =
			atarijoysticks[PORTA_PAD3].enabled =
			atarijoysticks[PORTB_PAD0].enabled =
			atarijoysticks[PORTB_PAD1].enabled =
			atarijoysticks[PORTB_PAD2].enabled =
			atarijoysticks[PORTB_PAD3].enabled = SDL_TRUE;
	}
	if (!atarijoysticks[IKBD_JOY1].enabled) {
		atarijoysticks[XBIOS_JOY1].enabled=(SDL_AtariXbios_enabled!=0);
	}

	/* Read environment for joysticks to enable */
	if (envr) {
		/* IKBD on any Atari, maybe clones */
		if ((cookie_mch == MCH_ST<<16) || ((cookie_mch>>16) == MCH_STE) ||
			(cookie_mch == MCH_TT<<16) || (cookie_mch == MCH_F30<<16) ||
			(cookie_mch == MCH_ARANYM<<16)) {
			if (SDL_AtariIkbd_enabled!=0) {
				TEST_JOY_ENABLED(envr, "ikbd-joy1", IKBD_JOY1);
			}
		}
		/* Joypads ports on STE, Falcon and maybe others */
		if ((cookie_mch == MCH_STE<<16) || (cookie_mch == MCH_F30<<16) ||
			(cookie_mch == MCH_ARANYM<<16)) {
			TEST_JOY_ENABLED(envr, "porta-pad", PORTA_PAD0);
			if (!atarijoysticks[PORTA_PAD0].enabled) {
				TEST_JOY_ENABLED(envr, "porta-joy0", PORTA_JOY0);
				TEST_JOY_ENABLED(envr, "porta-joy1", PORTA_JOY1);
				if (!(atarijoysticks[PORTA_JOY0].enabled) && !(atarijoysticks[PORTA_JOY1].enabled)) {
					TEST_JOY_ENABLED(envr, "porta-lp", PORTA_LP);
					if (!atarijoysticks[PORTA_LP].enabled) {
						TEST_JOY_ENABLED(envr, "porta-anpad", PORTA_ANPAD);
					}
				}
			}

			TEST_JOY_ENABLED(envr, "portb-pad", PORTB_PAD0);
			if (!atarijoysticks[PORTB_PAD0].enabled) {
				TEST_JOY_ENABLED(envr, "portb-joy0", PORTB_JOY0);
				TEST_JOY_ENABLED(envr, "portb-joy1", PORTB_JOY1);
				if (!(atarijoysticks[PORTB_JOY0].enabled) && !(atarijoysticks[PORTB_JOY1].enabled)) {
					TEST_JOY_ENABLED(envr, "portb-anpad", PORTB_ANPAD);
				}
			}
		}

		if (!atarijoysticks[IKBD_JOY1].enabled) {
			if (SDL_AtariXbios_enabled!=0) {
				TEST_JOY_ENABLED(envr, "xbios-joy1", XBIOS_JOY1);
			}
		}
#if 0
		/* Parallel port on any Atari, maybe clones */
		if ((cookie_mch == MCH_ST<<16) || ((cookie_mch>>16) == MCH_STE) ||
			(cookie_mch == MCH_TT<<16) || (cookie_mch == MCH_F30<<16)) {
			TEST_JOY_ENABLED(envr, "para-joy0", PARA_JOY0);
			TEST_JOY_ENABLED(envr, "para-joy1", PARA_JOY1);
		}
#endif
	}

	/* Need to update joypad ports ? */
	joypad_ports_enabled=SDL_FALSE;
	for (i=PORTA_PAD0;i<=PORTB_ANPAD;i++) {
		if (atarijoysticks[i].enabled) {
			joypad_ports_enabled=SDL_TRUE;
			break;
		}
	}

	SDL_numjoysticks = 0;
	for (i=0;i<MAX_JOYSTICKS;i++) {
		if (atarijoysticks[i].enabled) {
			++SDL_numjoysticks;
		}
	}

	return(SDL_numjoysticks);
}

static int GetEnabledAtariJoystick(int index)
{
	int i,j;

	/* Return the nth'index' enabled atari joystick */
	j=0;
	for (i=0;i<MAX_JOYSTICKS;i++) {
		if (!atarijoysticks[i].enabled) {
			continue;
		}

		if (j==index) {
			break;
		}

		++j;
	}
	if (i==MAX_JOYSTICKS)
		return -1;

	return i;
}

const char *SDL_SYS_JoystickName(int index)
{
	int numjoystick;

	numjoystick=GetEnabledAtariJoystick(index);
	if (numjoystick==-1)
		return NULL;

	return(atarijoysticks[numjoystick].name);
}

int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
{
	int numjoystick;
	
	numjoystick=GetEnabledAtariJoystick(joystick->index);
	if (numjoystick==-1)
		return -1;
	
	joystick->naxes=0;
	joystick->nhats=0;
	joystick->nballs=0;

	switch(numjoystick) {
		case PORTA_PAD0:
		case PORTA_PAD1:
		case PORTA_PAD2:
		case PORTA_PAD3:
		case PORTB_PAD0:
		case PORTB_PAD1:
		case PORTB_PAD2:
		case PORTB_PAD3:
			joystick->nhats=1;
			joystick->nbuttons=JP_NUM_BUTTONS;
			break;
		case PORTA_LP:
		case PORTA_ANPAD:
		case PORTB_ANPAD:
			joystick->naxes=2;
			joystick->nbuttons=2;
			break;
		default:
			joystick->nhats=1;
			joystick->nbuttons=1;
			break;
	}

	return(0);
}

void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
{
	int numjoystick;
	Uint8 hatstate;
	Uint32 curstate,prevstate;
	
	numjoystick=GetEnabledAtariJoystick(joystick->index);
	if (numjoystick==-1)
		return;

	prevstate = atarijoysticks[numjoystick].prevstate;

	if (joypad_ports_enabled) {
		Supexec(UpdateJoypads);
	}

	switch (numjoystick) {
		case IKBD_JOY1:
		case XBIOS_JOY1:
			{
				curstate = 0;

				if (numjoystick==IKBD_JOY1) {
					curstate = SDL_AtariIkbd_joystick & 0xff;
				}
				if (numjoystick==XBIOS_JOY1) {
					curstate = SDL_AtariXbios_joystick & 0xff;
				}

				if (curstate != prevstate) {
					hatstate = SDL_HAT_CENTERED;
					if (curstate & IKBD_JOY_LEFT) {
						hatstate |= SDL_HAT_LEFT;
					}
					if (curstate & IKBD_JOY_RIGHT) {
						hatstate |= SDL_HAT_RIGHT;
					}
					if (curstate & IKBD_JOY_UP) {
						hatstate |= SDL_HAT_UP;
					}
					if (curstate & IKBD_JOY_DOWN) {
						hatstate |= SDL_HAT_DOWN;
					}
					SDL_PrivateJoystickHat(joystick, 0, hatstate);

					/* Button */
					if ((curstate & IKBD_JOY_FIRE) && !(prevstate & IKBD_JOY_FIRE)) {
						SDL_PrivateJoystickButton(joystick,0,SDL_PRESSED);
					}
					if (!(curstate & IKBD_JOY_FIRE) && (prevstate & IKBD_JOY_FIRE)) {
						SDL_PrivateJoystickButton(joystick,0,SDL_RELEASED);
					}
				}
				atarijoysticks[numjoystick].prevstate = curstate;
			}
			break;
		case PORTA_PAD0:
		case PORTA_PAD1:
		case PORTA_PAD2:
		case PORTA_PAD3:
		case PORTB_PAD0:
		case PORTB_PAD1:
		case PORTB_PAD2:
		case PORTB_PAD3:
			{
				int numjoypad,i;
				
				numjoypad = 0;
				switch(numjoystick) {
					case PORTA_PAD0:
						numjoypad = 0;	break;
					case PORTA_PAD1:
						numjoypad = 1;	break;
					case PORTA_PAD2:
						numjoypad = 2;	break;
					case PORTA_PAD3:
						numjoypad = 3;	break;
					case PORTB_PAD0:
						numjoypad = 4;	break;
					case PORTB_PAD1:
						numjoypad = 5;	break;
					case PORTB_PAD2:
						numjoypad = 6;	break;
					case PORTB_PAD3:
						numjoypad = 7;	break;
				}				
				
				curstate=jp_joypads[numjoypad] & 0xabffff;
				if (curstate!=prevstate) {
					hatstate = SDL_HAT_CENTERED;
					if (curstate & (1<<JP_LEFT)) {
						hatstate |= SDL_HAT_LEFT;
					}
					if (curstate & (1<<JP_RIGHT)) {
						hatstate |= SDL_HAT_RIGHT;
					}
					if (curstate & (1<<JP_UP)) {
						hatstate |= SDL_HAT_UP;
					}
					if (curstate & (1<<JP_DOWN)) {
						hatstate |= SDL_HAT_DOWN;
					}
					SDL_PrivateJoystickHat(joystick, 0, hatstate);

					/* Buttons */
					for (i=0;i<JP_NUM_BUTTONS;i++) {
						int button;
						
						button=1<<jp_buttons[i];

						if ((curstate & button) && !(prevstate & button)) {
							SDL_PrivateJoystickButton(joystick,i,SDL_PRESSED);
						}
						if (!(curstate & button) && (prevstate & button)) {
							SDL_PrivateJoystickButton(joystick,i,SDL_RELEASED);
						}
					}
				}
				atarijoysticks[numjoystick].prevstate = curstate;
			}
			break;
		case PORTA_JOY0:
		case PORTA_JOY1:
		case PORTB_JOY0:
		case PORTB_JOY1:
			{
				int fire_shift=0,dir_shift=0;
				
				if (numjoystick==PORTA_JOY0) {	fire_shift=0; dir_shift=0; }
				if (numjoystick==PORTA_JOY1) {	fire_shift=1; dir_shift=4; }
				if (numjoystick==PORTB_JOY0) {	fire_shift=2; dir_shift=8; }
				if (numjoystick==PORTB_JOY1) {	fire_shift=3; dir_shift=12; }

				curstate = (jp_directions>>dir_shift) & 15;
				curstate |= ((jp_fires>>fire_shift) & 1)<<4;

				if (curstate != prevstate) {
					hatstate = SDL_HAT_CENTERED;
					if (curstate & PORT_JS_LEFT) {
						hatstate |= SDL_HAT_LEFT;
					}
					if (curstate & PORT_JS_RIGHT) {
						hatstate |= SDL_HAT_RIGHT;
					}
					if (curstate & PORT_JS_UP) {
						hatstate |= SDL_HAT_UP;
					}
					if (curstate & PORT_JS_DOWN) {
						hatstate |= SDL_HAT_DOWN;
					}
					SDL_PrivateJoystickHat(joystick, 0, hatstate);

					/* Button */
					if ((curstate & PORT_JS_FIRE) && !(prevstate & PORT_JS_FIRE)) {
						SDL_PrivateJoystickButton(joystick,0,SDL_PRESSED);
					}
					if (!(curstate & PORT_JS_FIRE) && (prevstate & PORT_JS_FIRE)) {
						SDL_PrivateJoystickButton(joystick,0,SDL_RELEASED);
					}
				}
				atarijoysticks[numjoystick].prevstate = curstate;
			}
			break;
		case PORTA_LP:
			{
				int i;

				curstate = jp_lightpens[0]>>1;
				curstate |= (jp_lightpens[1]>>1)<<15;
				curstate |= (jp_fires & 3)<<30;

				if (curstate != prevstate) {
					/* X axis */
					SDL_PrivateJoystickAxis(joystick,0,jp_lightpens[0] ^ 0x8000);
					/* Y axis */
					SDL_PrivateJoystickAxis(joystick,1,jp_lightpens[1] ^ 0x8000);
					/* Buttons */
					for (i=0;i<2;i++) {
						int button;
						
						button=1<<(30+i);

						if ((curstate & button) && !(prevstate & button)) {
							SDL_PrivateJoystickButton(joystick,i,SDL_PRESSED);
						}
						if (!(curstate & button) && (prevstate & button)) {
							SDL_PrivateJoystickButton(joystick,i,SDL_RELEASED);
						}
					}
				}
				atarijoysticks[numjoystick].prevstate = curstate;
			}
			break;
		case PORTA_ANPAD:
		case PORTB_ANPAD:
			{
				int numpaddle, i;
				
				numpaddle=0<<1;
				if (numjoystick==PORTB_ANPAD) numpaddle=1<<1;

				curstate = jp_paddles[numpaddle]>>1;
				curstate |= (jp_paddles[numpaddle+1]>>1)<<15;
				curstate |= ((jp_fires>>numpaddle) & 3)<<30;

				if (curstate != prevstate) {
					/* X axis */
					SDL_PrivateJoystickAxis(joystick,0,jp_paddles[numpaddle] ^ 0x8000);
					/* Y axis */
					SDL_PrivateJoystickAxis(joystick,1,jp_paddles[numpaddle+1] ^ 0x8000);
					/* Buttons */
					for (i=0;i<2;i++) {
						int button;
						
						button=1<<(30+i);

						if ((curstate & button) && !(prevstate & button)) {
							SDL_PrivateJoystickButton(joystick,i,SDL_PRESSED);
						}
						if (!(curstate & button) && (prevstate & button)) {
							SDL_PrivateJoystickButton(joystick,i,SDL_RELEASED);
						}
					}
				}
				atarijoysticks[numjoystick].prevstate = curstate;
			}
			break;
#if 0
		case PARA_JOY0:
		case PARA_JOY1:
			break;
#endif
	};

	return;
}

void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
{
	return;
}

void SDL_SYS_JoystickQuit(void)
{
	SDL_numjoysticks=0;
	return;
}

/*--- Joypad I/O read/write interface ---*/

#define JOYPAD_IO_BASE (0xffff9200)
struct JOYPAD_IO_S {
	Uint16 fires;
	Uint16 directions;
	Uint16 dummy1[6];
	Uint16 paddles[4];
	Uint16 dummy2[4];
	Uint16 lightpens[2];
};
#define JOYPAD_IO ((*(volatile struct JOYPAD_IO_S *)JOYPAD_IO_BASE))

static const Uint16 joypad_masks[8*4]={
	0xfffe, 0xfffd, 0xfffb, 0xfff7,
	0xfff0, 0xfff1, 0xfff2, 0xfff3,
	0xfff4, 0xfff5, 0xfff6, 0xfff8,
	0xfff9, 0xfffa, 0xfffc, 0xffff,
	0xffef, 0xffdf, 0xffbf, 0xff7f,
	0xff0f, 0xff1f, 0xff2f, 0xff3f,
	0xff4f, 0xff5f, 0xff6f, 0xff8f,
	0xff9f, 0xffaf, 0xffcf, 0xffff
};

static void UpdateJoypads(void)
{
	Uint16 tmp, i, j;
	Uint32 cur_fire, cur_dir;

	/*--- This function is called in supervisor mode ---*/

	/* Update joysticks */
	jp_fires = (~(JOYPAD_IO.fires)) & 15;
	jp_directions = (~(JOYPAD_IO.directions));
	
	/* Update lightpen */
	tmp = JOYPAD_IO.lightpens[0] & 1023;
	jp_lightpens[0] = (tmp<<6) | (tmp>>4);
	tmp = JOYPAD_IO.lightpens[1] & 1023;
	jp_lightpens[1] = (tmp<<6) | (tmp>>4);
	
	/* Update paddles */
	tmp = (JOYPAD_IO.paddles[0] & 255);
	jp_paddles[0] = (tmp<<8) | tmp;
	tmp = (JOYPAD_IO.paddles[1] & 255);
	jp_paddles[1] = (tmp<<8) | tmp;
	tmp = (JOYPAD_IO.paddles[2] & 255);
	jp_paddles[2] = (tmp<<8) | tmp;
	tmp = (JOYPAD_IO.paddles[3] & 255);
	jp_paddles[3] = (tmp<<8) | tmp;

	/* Update joypads on teamtap port A */	
	for (i=0; i<4; i++) {
		jp_joypads[i] = 0;
		for (j=0; j<4; j++) {
			JOYPAD_IO.directions = joypad_masks[(i*4)+j];

			cur_fire = (~(JOYPAD_IO.fires) & 3)<<16;
			cur_dir = (~(JOYPAD_IO.directions)>>8) & 15;

			jp_joypads[i] |= cur_fire<<(j*2);
			jp_joypads[i] |= cur_dir<<(j*4);
		}
	}

	/* Update joypads on teamtap port B */	
	for (i=4; i<8; i++) {
		jp_joypads[i] = 0;
		for (j=0; j<4; j++) {
			JOYPAD_IO.directions = joypad_masks[(i*4)+j];

			cur_fire = (~(JOYPAD_IO.fires) & 0xc)<<14;
			cur_dir = (~(JOYPAD_IO.directions)>>12) & 15;

			jp_joypads[i] |= cur_fire<<(j*2);
			jp_joypads[i] |= cur_dir<<(j*4);
		}
	}

	JOYPAD_IO.directions=0xffff;
}

#endif /* SDL_JOYSTICK_MINT */