src/joystick/os2/SDL_sysjoystick.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 19 Feb 2006 18:46:58 +0000
changeset 1375 3793c4b34a92
parent 1361 19418e4422cb
child 1379 c0a74f199ecf
permissions -rw-r--r--
sprintf should have been snprintf
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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/* OS/2 Joystick driver, contributed by Daniel Caetano */
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#include <mem.h>
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#define INCL_DOSDEVICES
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#define INCL_DOSDEVIOCTL
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#define INCL_DOSMEMMGR
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#include <os2.h>
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#include "joyos2.h"
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#include "SDL_joystick.h"
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#include "../SDL_sysjoystick.h"
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#include "../SDL_joystick_c.h"
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HFILE hJoyPort = NULL;		/* Joystick GAME$ Port Address */
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#define MAX_JOYSTICKS	2	/* Maximum of two joysticks */
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#define MAX_AXES	4			/* each joystick can have up to 4 axes */
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#define MAX_BUTTONS	8		/* 8 buttons */
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#define MAX_HATS	0			/* 0 hats - OS/2 doesn't support it */
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#define MAX_BALLS	0			/* and 0 balls - OS/2 doesn't support it */
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#define AXIS_MIN -32768		/* minimum value for axes coordinate */
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#define AXIS_MAX 32767		/* maximum value for axes coordinate */
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#define MAX_JOYNAME	128	/* Joystick name may have 128 characters */
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/* limit axes to 256 possible positions to filter out noise */
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#define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/256)
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/* Calc Button Flag for buttons A to D */
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#define JOY_BUTTON_FLAG(n) (1<<n)
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/* Joystick data... hold information about detected devices */
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struct _SYS_JoyData
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{
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Sint8					id;								// Device ID
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char					szDeviceName[MAX_JOYNAME];	// Device Name
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char					axes;								// Number of axes
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char					buttons;							// Number of buttons
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char					hats;								// Number of buttons
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char					balls;							// Number of buttons
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int					axes_min[MAX_AXES];			// minimum callibration value for axes
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int					axes_med[MAX_AXES];			// medium callibration value for axes
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int					axes_max[MAX_AXES];			// maximum callibration value for axes
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int					buttoncalc[4];					// Used for buttons 5, 6, 7 and 8.
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} SYS_JoyData[MAX_JOYSTICKS];
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/* Structure used to convert data from OS/2 driver format to SDL format */
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struct joystick_hwdata
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{
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Sint8					id;
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struct _transaxes
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	{
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	int offset;					/* Center Offset */
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	float scale1;				/* Center to left/up Scale */
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	float scale2;				/* Center to right/down Scale */
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	} transaxes[MAX_AXES];
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};
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/* Structure used to get values from Joystick Environment Variable */
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struct _joycfg
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{
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char	name[MAX_JOYNAME];
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unsigned int	axes;
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unsigned int	buttons;
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unsigned int	hats;
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unsigned int	balls;
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};
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/* OS/2 Implementation Function Prototypes */
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APIRET joyPortOpen(HFILE * hGame);
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void joyPortClose(HFILE * hGame);
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int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars);
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int joyGetEnv(struct _joycfg * joydata);
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/************************************************************************/
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/* Function to scan the system for joysticks.									*/
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/* This function should set SDL_numjoysticks to the number of available	*/
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/* joysticks.  Joystick 0 should be the system default joystick.			*/
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/* It should return 0, or -1 on an unrecoverable fatal error.				*/
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/************************************************************************/
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int SDL_SYS_JoystickInit(void)
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{
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APIRET rc;											/* Generic OS/2 return code */
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GAME_PORT_STRUCT	stJoyStatus;				/* Joystick Status Structure */
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GAME_PARM_STRUCT	stGameParms;				/* Joystick Parameter Structure */
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GAME_CALIB_STRUCT	stGameCalib;				/* Calibration Struct */
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ULONG ulDataLen;									/* Size of data */
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ULONG ulLastTick;						/* Tick Counter for timing operations */
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Uint8 maxdevs;										/* Maximum number of devices */
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Uint8 numdevs;										/* Number of present devices */
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Uint8 maxbut;										/* Maximum number of buttons... */
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Uint8 i;												/* Temporary Count Vars */
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Uint8 ucNewJoystickMask;										/* Mask for Joystick Detection */
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struct _joycfg joycfg;							/* Joy Configuration from envvar */
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/* Get Max Number of Devices */
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rc = joyPortOpen(&hJoyPort); /* Open GAME$ port */
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if (rc != 0) return 0;	/* Cannot open... report no joystick */
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ulDataLen = sizeof(stGameParms);
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rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_PARMS,
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	NULL, 0, NULL, &stGameParms, ulDataLen, &ulDataLen); /* Ask device info */
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if (rc != 0)
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	{
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	joyPortClose(&hJoyPort);
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	SDL_SetError("Could not read joystick port.");
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	return -1;
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	}
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if (stGameParms.useA != 0) maxdevs++;
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if (stGameParms.useB != 0) maxdevs++;
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if ( maxdevs > MAX_JOYSTICKS ) maxdevs = MAX_JOYSTICKS;
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/* Defines min/max axes values (callibration) */
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ulDataLen = sizeof(stGameCalib);
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rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_CALIB,
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	NULL, 0, NULL, &stGameCalib, ulDataLen, &ulDataLen);
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if (rc != 0)
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	{
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	joyPortClose(&hJoyPort);
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	SDL_SetError("Could not read callibration data.");
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	return -1;
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	}
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/* Determine how many joysticks are active */
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numdevs = 0;	/* Points no device */
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ucNewJoystickMask = 0x0F;	/* read all 4 joystick axis */
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ulDataLen = sizeof(ucNewJoystickMask);
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rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_RESET,
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		&ucNewJoystickMask, ulDataLen, &ulDataLen, NULL, 0, NULL);
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if (rc == 0)
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	{
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	ulDataLen = sizeof(stJoyStatus);
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	rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
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		NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
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	if (rc != 0)
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		{
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		joyPortClose(&hJoyPort);
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		SDL_SetError("Could not call joystick port.");
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		return -1;
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		}
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	ulLastTick = stJoyStatus.ulJs_Ticks;
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	while (stJoyStatus.ulJs_Ticks == ulLastTick)
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		{
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		rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
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			NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
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		}
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	if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) numdevs++;
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	if (((stJoyStatus.ucJs_JoyStickMask >> 2) & 0x03) > 0) numdevs++;
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	}
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if (numdevs>maxdevs) numdevs=maxdevs;
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/* If *any* joystick was detected... Let's configure SDL for them */
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if (numdevs > 0)
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	{
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	/* Verify if it is a "user defined" joystick */
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	if (joyGetEnv(&joycfg))
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		{
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		GAME_3POS_STRUCT * axis[4];
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		axis[0] = &stGameCalib.Ax;
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		axis[1] = &stGameCalib.Ay;
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		axis[2] = &stGameCalib.Bx;
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		axis[3] = &stGameCalib.By;
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		/* Say it has one device only (user defined is always one device only) */
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		numdevs = 1;
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		/* Define Device 0 as... */
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		SYS_JoyData[0].id=0;
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		/* Define Number of Axes... up to 4 */
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		if (joycfg.axes>MAX_AXES) joycfg.axes = MAX_AXES;
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		SYS_JoyData[0].axes = joycfg.axes;
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		/* Define number of buttons... 8 if 2 axes, 6 if 3 axes and 4 if 4 axes */
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		maxbut = MAX_BUTTONS;
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		if (joycfg.axes>2) maxbut-=((joycfg.axes-2)<<1); /* MAX_BUTTONS - 2*(axes-2) */
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		if (joycfg.buttons > maxbut) joycfg.buttons = maxbut;
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		SYS_JoyData[0].buttons = joycfg.buttons;
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		/* Define number of hats */
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		if (joycfg.hats > MAX_HATS) joycfg.hats = MAX_HATS;
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		SYS_JoyData[0].hats = joycfg.hats;
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		/* Define number of balls */
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		if (joycfg.balls > MAX_BALLS) joycfg.balls = MAX_BALLS;
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		SYS_JoyData[0].balls = joycfg.balls;
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		/* Initialize Axes Callibration Values */
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		for (i=0; i<joycfg.axes; i++)
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			{
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			SYS_JoyData[0].axes_min[i] = axis[i]->lower;
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			SYS_JoyData[0].axes_med[i] = axis[i]->centre;
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			SYS_JoyData[0].axes_max[i] = axis[i]->upper;
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			}
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		/* Initialize Buttons 5 to 8 structures */
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		if (joycfg.buttons>=5) SYS_JoyData[0].buttoncalc[0]=((axis[2]->lower+axis[3]->centre)>>1);
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		if (joycfg.buttons>=6) SYS_JoyData[0].buttoncalc[1]=((axis[3]->lower+axis[3]->centre)>>1);
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		if (joycfg.buttons>=7) SYS_JoyData[0].buttoncalc[2]=((axis[2]->upper+axis[3]->centre)>>1);
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		if (joycfg.buttons>=8) SYS_JoyData[0].buttoncalc[3]=((axis[3]->upper+axis[3]->centre)>>1);
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		/* Intialize Joystick Name */
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		SDL_strcpy (SYS_JoyData[0].szDeviceName,joycfg.name);
1190
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		}
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	/* Default Init ... autoconfig */
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	else
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		{
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		/* if two devices were detected... configure as Joy1 4 axis and Joy2 2 axis */
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		if (numdevs==2)
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			{
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			/* Define Device 0 as 4 axes, 4 buttons */
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			SYS_JoyData[0].id=0;
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			SYS_JoyData[0].axes = 4;
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			SYS_JoyData[0].buttons = 4;
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			SYS_JoyData[0].hats = 0;
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			SYS_JoyData[0].balls = 0;
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			SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
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			SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
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			SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
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			SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
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			SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
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			SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
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			SYS_JoyData[0].axes_min[2] = stGameCalib.Bx.lower;
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			SYS_JoyData[0].axes_med[2] = stGameCalib.Bx.centre;
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			SYS_JoyData[0].axes_max[2] = stGameCalib.Bx.upper;
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			SYS_JoyData[0].axes_min[3] = stGameCalib.By.lower;
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			SYS_JoyData[0].axes_med[3] = stGameCalib.By.centre;
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			SYS_JoyData[0].axes_max[3] = stGameCalib.By.upper;
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			/* Define Device 1 as 2 axes, 2 buttons */
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			SYS_JoyData[1].id=1;
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			SYS_JoyData[1].axes = 2;
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			SYS_JoyData[1].buttons = 2;
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			SYS_JoyData[1].hats = 0;
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			SYS_JoyData[1].balls = 0;
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			SYS_JoyData[1].axes_min[0] = stGameCalib.Bx.lower;
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			SYS_JoyData[1].axes_med[0] = stGameCalib.Bx.centre;
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			SYS_JoyData[1].axes_max[0] = stGameCalib.Bx.upper;
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			SYS_JoyData[1].axes_min[1] = stGameCalib.By.lower;
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			SYS_JoyData[1].axes_med[1] = stGameCalib.By.centre;
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			SYS_JoyData[1].axes_max[1] = stGameCalib.By.upper;
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			}
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		/* One joystick only? */
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		else
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			{
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			/* If it is joystick A... */
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			if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0)
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				{
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				/* Define Device 0 as 2 axes, 4 buttons */
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				SYS_JoyData[0].id=0;
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				SYS_JoyData[0].axes = 2;
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				SYS_JoyData[0].buttons = 4;
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				SYS_JoyData[0].hats = 0;
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				SYS_JoyData[0].balls = 0;
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				SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
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				SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
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				SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
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				SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
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				SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
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				SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
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				}
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			/* If not, it is joystick B */
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			else
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				{
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				/* Define Device 1 as 2 axes, 2 buttons */
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				SYS_JoyData[0].id=1;
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				SYS_JoyData[0].axes = 2;
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				SYS_JoyData[0].buttons = 2;
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				SYS_JoyData[0].hats = 0;
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				SYS_JoyData[0].balls = 0;
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				SYS_JoyData[0].axes_min[0] = stGameCalib.Bx.lower;
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				SYS_JoyData[0].axes_med[0] = stGameCalib.Bx.centre;
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				SYS_JoyData[0].axes_max[0] = stGameCalib.Bx.upper;
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				SYS_JoyData[0].axes_min[1] = stGameCalib.By.lower;
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				SYS_JoyData[0].axes_med[1] = stGameCalib.By.centre;
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				SYS_JoyData[0].axes_max[1] = stGameCalib.By.upper;
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				}
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			}
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		/* Hack to define Joystick Port Names */
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		if ( numdevs > maxdevs ) numdevs = maxdevs;
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		for (i=0; i<numdevs; i++) {
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			SDL_snprintf (SYS_JoyData[i].szDeviceName, SDL_arraysize(szDeviceName), "Default Joystick %c", 'A'+SYS_JoyData[i].id);
1190
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		}
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	}
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/* Return the number of devices found */
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return(numdevs);
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}
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/***********************************************************/
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/* Function to get the device-dependent name of a joystick */
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/***********************************************************/
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const char *SDL_SYS_JoystickName(int index)
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{
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/* No need to verify if device exists, already done in upper layer */
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return(SYS_JoyData[index].szDeviceName);
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}
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/******************************************************************************/
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/* Function to open a joystick for use.													*/
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/* The joystick to open is specified by the index field of the joystick.		*/
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/* This should fill the nbuttons and naxes fields of the joystick structure.	*/
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/* It returns 0, or -1 if there is an error.												*/
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/******************************************************************************/
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int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
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{
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int index;		/* Index shortcut for index in joystick structure */
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int i;			/* Generic Counter */
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/* allocate memory for system specific hardware data */
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joystick->hwdata = (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata));
1190
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if (joystick->hwdata == NULL)
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	{
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	SDL_OutOfMemory();
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	return(-1);
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	}
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   333
/* Reset Hardware Data */
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diff changeset
   334
SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
1190
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   335
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/* ShortCut Pointer */
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index = joystick->index;
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   338
/* Define offsets and scales for all axes */
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joystick->hwdata->id = SYS_JoyData[index].id;
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for ( i = 0; i < MAX_AXES; ++i )
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	{
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	if ( (i<2) || i < SYS_JoyData[index].axes )
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		{
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		joystick->hwdata->transaxes[i].offset = ((AXIS_MAX + AXIS_MIN)>>1) - SYS_JoyData[index].axes_med[i];
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		//joystick->hwdata->transaxes[i].scale = (float)((AXIS_MAX - AXIS_MIN)/(SYS_JoyData[index].axes_max[i]-SYS_JoyData[index].axes_min[i]));
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		joystick->hwdata->transaxes[i].scale1 = (float)abs((AXIS_MIN/SYS_JoyData[index].axes_min[i]));
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		joystick->hwdata->transaxes[i].scale2 = (float)abs((AXIS_MAX/SYS_JoyData[index].axes_max[i]));
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		}
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	else
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		{
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   351
		joystick->hwdata->transaxes[i].offset = 0;
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   352
		//joystick->hwdata->transaxes[i].scale = 1.0; /* Just in case */
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		joystick->hwdata->transaxes[i].scale1 = 1.0; /* Just in case */
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   354
		joystick->hwdata->transaxes[i].scale2 = 1.0; /* Just in case */
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   355
		}
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   356
	}
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   357
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diff changeset
   358
/* fill nbuttons, naxes, and nhats fields */
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   359
joystick->nbuttons = SYS_JoyData[index].buttons;
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   360
joystick->naxes = SYS_JoyData[index].axes;
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diff changeset
   361
/* joystick->nhats = SYS_JoyData[index].hats; */
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diff changeset
   362
joystick->nhats = 0; /* No support for hats at this time */
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diff changeset
   363
/* joystick->nballs = SYS_JoyData[index].balls; */
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diff changeset
   364
joystick->nballs = 0; /* No support for balls at this time */
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diff changeset
   365
return 0;
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diff changeset
   366
}
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   367
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   368
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diff changeset
   369
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diff changeset
   370
/***************************************************************************/
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diff changeset
   371
/* Function to update the state of a joystick - called as a device poll.	*/
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diff changeset
   372
/* This function shouldn't update the joystick structure directly,			*/
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diff changeset
   373
/* but instead should call SDL_PrivateJoystick*() to deliver events			*/
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diff changeset
   374
/* and update joystick device state.													*/
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diff changeset
   375
/***************************************************************************/
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diff changeset
   376
void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
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diff changeset
   377
{
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diff changeset
   378
APIRET rc;									/* Generic OS/2 return code */
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diff changeset
   379
int index;									/* index shortcurt to joystick index */
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diff changeset
   380
int i;										/* Generic counter */
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diff changeset
   381
int normbut;								/* Number of buttons reported by joystick */
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diff changeset
   382
int corr;									/* Correction for button names */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   383
Sint16 value, change;					/* Values used to update axis values */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   384
struct _transaxes *transaxes;			/* Shortcut for Correction structure */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   385
Uint32 pos[MAX_AXES];					/* Vector to inform the Axis status */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   386
ULONG ulDataLen;							/* Size of data */
173c063d4f55 OS/2 port!
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diff changeset
   387
GAME_STATUS_STRUCT stGameStatus;		/* Joystick Status Structure */
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parents:
diff changeset
   388
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diff changeset
   389
ulDataLen = sizeof(stGameStatus);
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parents:
diff changeset
   390
rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_STATUS,
173c063d4f55 OS/2 port!
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parents:
diff changeset
   391
	NULL, 0, NULL, &stGameStatus, ulDataLen, &ulDataLen);
173c063d4f55 OS/2 port!
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parents:
diff changeset
   392
if (rc != 0)
173c063d4f55 OS/2 port!
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parents:
diff changeset
   393
	{
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parents:
diff changeset
   394
	SDL_SetError("Could not read joystick status.");
173c063d4f55 OS/2 port!
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parents:
diff changeset
   395
	return; /* Could not read data */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   396
	}
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parents:
diff changeset
   397
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diff changeset
   398
/* Shortcut pointer */
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parents:
diff changeset
   399
index = joystick->index;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   400
/* joystick motion events */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   401
173c063d4f55 OS/2 port!
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parents:
diff changeset
   402
if (SYS_JoyData[index].id == 0)
173c063d4f55 OS/2 port!
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parents:
diff changeset
   403
	{
173c063d4f55 OS/2 port!
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parents:
diff changeset
   404
	pos[0] = stGameStatus.curdata.A.x;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   405
	pos[1] = stGameStatus.curdata.A.y;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
	if (SYS_JoyData[index].axes >= 3)	pos[2] = stGameStatus.curdata.B.x;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   407
	else pos[2]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
	if (SYS_JoyData[index].axes >= 4)	pos[3] = stGameStatus.curdata.B.y;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   409
	else pos[3]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
	pos[4]=0;	/* OS/2 basic drivers do not support more than 4 axes joysticks */
173c063d4f55 OS/2 port!
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parents:
diff changeset
   411
	pos[5]=0;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   412
	}
173c063d4f55 OS/2 port!
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parents:
diff changeset
   413
else if (SYS_JoyData[index].id == 1)
173c063d4f55 OS/2 port!
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parents:
diff changeset
   414
	{
173c063d4f55 OS/2 port!
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parents:
diff changeset
   415
	pos[0] = stGameStatus.curdata.B.x;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   416
	pos[1] = stGameStatus.curdata.B.y;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   417
	pos[2]=0;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   418
	pos[3]=0;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   419
	pos[4]=0;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   420
	pos[5]=0;
173c063d4f55 OS/2 port!
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parents:
diff changeset
   421
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
/* Corrects the movements using the callibration */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   424
transaxes = joystick->hwdata->transaxes;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
for (i = 0; i < joystick->naxes; i++)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   426
	{
173c063d4f55 OS/2 port!
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parents:
diff changeset
   427
	value = pos[i] + transaxes[i].offset;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   428
	if (value<0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   429
		{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
		value*=transaxes[i].scale1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   431
		if (value>0) value = AXIS_MIN;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
		}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   433
	else
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
		{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
		value*=transaxes[i].scale2;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
		if (value<0) value = AXIS_MAX;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
		}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   438
	change = (value - joystick->axes[i]);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
	if ( (change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD) )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
		{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
		SDL_PrivateJoystickAxis(joystick, (Uint8)i, (Sint16)value);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
		}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
/* joystick button A to D events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
if (SYS_JoyData[index].id == 1) corr = 2;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
else corr = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   448
normbut=4;	/* Number of normal buttons */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
if (joystick->nbuttons<normbut) normbut = joystick->nbuttons;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   450
for ( i = corr; (i-corr) < normbut; ++i )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
	/*
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   453
		Button A: 1110 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
		Button B: 1101 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   455
		Button C: 1011 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
		Button D: 0111 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457
	*/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
	if ( (~stGameStatus.curdata.butMask)>>4 & JOY_BUTTON_FLAG(i) )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
		{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
		if ( ! joystick->buttons[i-corr] )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   461
			{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   462
			SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   463
			}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
		}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
	else
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
		{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
		if ( joystick->buttons[i-corr] )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
			{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
			SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
			}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
		}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   472
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
/* Joystick button E to H buttons */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
	/*
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   476
		Button E: Axis 2 X Left
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   477
		Button F: Axis 2 Y Up
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
		Button G: Axis 2 X Right
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
		Button H: Axis 2 Y Down
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
	*/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
if (joystick->nbuttons>=5)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   482
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
	if (stGameStatus.curdata.B.x < SYS_JoyData[index].buttoncalc[0]) SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   484
	else SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   485
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   486
if (joystick->nbuttons>=6)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
	if (stGameStatus.curdata.B.y < SYS_JoyData[index].buttoncalc[1]) SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
	else SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   490
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
if (joystick->nbuttons>=7)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
	if (stGameStatus.curdata.B.x > SYS_JoyData[index].buttoncalc[2]) SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   494
	else SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   496
if (joystick->nbuttons>=8)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   497
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   498
	if (stGameStatus.curdata.B.y > SYS_JoyData[index].buttoncalc[3]) SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   499
	else SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   502
/* joystick hat events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   503
/* Not Supported under OS/2 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   504
/* joystick ball events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   505
/* Not Supported under OS/2 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   506
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   507
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   508
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   509
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
/******************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
/* Function to close a joystick after use */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
/******************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   513
void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   514
{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   515
if (joystick->hwdata != NULL)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   516
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   517
	/* free system specific hardware data */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
   518
	SDL_free(joystick->hwdata);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   519
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   520
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   521
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   522
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   523
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   524
/********************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   525
/* Function to perform any system-specific joystick related cleanup */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   526
/********************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   527
void SDL_SYS_JoystickQuit(void)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   528
{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   529
joyPortClose(&hJoyPort);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   530
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   531
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   532
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   533
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   534
/************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   535
/************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   536
/* OS/2 Implementations */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   537
/************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   538
/************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   539
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   541
/*****************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   542
/* Open Joystick Port, if not opened yet */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   543
/*****************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   544
APIRET joyPortOpen(HFILE * hGame)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   545
{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   546
APIRET		rc;				/* Generic Return Code */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   547
ULONG			ulAction;		/* ? */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   548
ULONG			ulVersion;		/* Version of joystick driver */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   549
ULONG			ulDataLen;		/* Size of version data */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   550
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   551
/* Verifies if joyport is not already open... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   552
if (*hGame != NULL) return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   553
/* Open GAME$ for read */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   554
rc = DosOpen((PSZ)GAMEPDDNAME, hGame, &ulAction, 0, FILE_READONLY,
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   555
	FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   556
if (rc != 0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   557
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   558
	SDL_SetError("Could not open Joystick Port.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   559
	return -1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   560
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   561
	
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   562
/* Get Joystick Driver Version... must be 2.0 or higher */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   563
ulVersion = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   564
ulDataLen = sizeof(ulVersion);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   565
rc = DosDevIOCtl( *hGame, IOCTL_CAT_USER, GAME_GET_VERSION,
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   566
	NULL, 0, NULL, &ulVersion, ulDataLen, &ulDataLen);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   567
if (rc != 0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   568
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   569
	joyPortClose(hGame);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   570
	SDL_SetError("Could not get Joystick Driver version.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   571
	return -1;	
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   572
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   573
if (ulVersion < GAME_VERSION)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   574
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   575
	joyPortClose(hGame);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   576
	SDL_SetError("Driver too old. At least IBM driver version 2.0 required.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   577
	return -1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   578
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   579
return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   580
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   581
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   582
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   583
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   584
/****************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   585
/* Close JoyPort, if opened */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   586
/****************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   587
void joyPortClose(HFILE * hGame)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   588
{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   589
if (*hGame != NULL) DosClose(*hGame);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   590
*hGame = NULL;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   591
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   592
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   593
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   594
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   595
/***************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   596
/* Get SDL Joystick EnvVar */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   597
/***************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   598
int joyGetEnv(struct _joycfg * joydata)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   599
{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   600
char *joyenv;				/* Pointer to tested character */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   601
char tempnumber[5];		/* Temporary place to put numeric texts */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   602
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
   603
joyenv = SDL_getenv("SDL_OS2_JOYSTICK");
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   604
if (joyenv == NULL) return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   605
/* Joystick Environment is defined! */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   606
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   607
/* If the string name starts with '... get if fully */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   608
if (*joyenv=='\'') joyenv+=joyGetData(++joyenv,joydata->name,'\'',sizeof(joydata->name));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   609
/* If not, get it until the next space */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   610
else if (*joyenv=='\"') joyenv+=joyGetData(++joyenv,joydata->name,'\"',sizeof(joydata->name));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   611
else joyenv+=joyGetData(joyenv,joydata->name,' ',sizeof(joydata->name));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   612
/* Now get the number of axes */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   613
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   614
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   615
joydata->axes = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   616
/* Now get the number of buttons */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   617
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   618
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   619
joydata->buttons = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   620
/* Now get the number of hats */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   621
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   622
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   623
joydata->hats = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   624
/* Now get the number of balls */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   625
while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   626
joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   627
joydata->balls = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   628
return 1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   629
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   630
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   631
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   632
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   633
/************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   634
/* Get a text from in the string starting in joyenv until it finds		*/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   635
/* the stopchar or maxchars is reached. The result is placed in name.	*/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   636
/************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   637
int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   638
{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   639
char *nameptr;			/* Pointer to the selected character */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   640
int chcnt=0;			/* Count how many characters where copied */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   641
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   642
nameptr=name;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   643
while (*joyenv!=stopchar && *joyenv!=0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   644
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   645
	if (nameptr<(name+(maxchars-1)))
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   646
		{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   647
		*nameptr = *joyenv; /* Only copy if smaller than maximum */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   648
		nameptr++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   649
		}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   650
	chcnt++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   651
	joyenv++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   652
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   653
if (*joyenv==stopchar)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   654
	{
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   655
	joyenv++; /* Jump stopchar */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   656
	chcnt++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   657
	}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   658
*nameptr = 0; /* Mark last byte */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   659
return chcnt;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   660
}
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   661
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   662