src/joystick/SDL_sysjoystick.h
author Sam Lantinga <slouken@libsdl.org>
Thu, 06 May 2004 15:55:06 +0000
changeset 886 05c551e5bc64
parent 769 b8d311d90021
child 1312 c9b51268668f
permissions -rw-r--r--
Date: Sat, 24 Apr 2004 15:13:32 +0300 From: "Mike Gorchak" Subject: SDL updates for the QNX6 1. Updated the README.QNX 2. Updated libtool scripts, which are shipped with SDL for QNX6 support. 3. Added some code to support the new QNX 6.3.0, which is in beta now. 4. Added code to detect the hw features, which driver supports. 5. Added hw alpha blits code. 6. Fixed bug when application switches to fullscreen more the 2 times. (afte\ r that window becames always stay on top). 7. Updated a bit README for the tests. 8. Added information about acceleration show in the testalpha.c test. 9. Added small fixes to the testoverlay2.c test. 10. Added alpha and cc+alpha blits benchmarks to the testvidinfo.c test.

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    slouken@libsdl.org
*/

#ifdef SAVE_RCSID
static char rcsid =
 "@(#) $Id$";
#endif

/* This is the system specific header for the SDL joystick API */

#include "SDL_joystick.h"

/* The SDL joystick structure */
struct _SDL_Joystick {
	Uint8 index;		/* Device index */
	const char *name;	/* Joystick name - system dependent */

	int naxes;		/* Number of axis controls on the joystick */
	Sint16 *axes;		/* Current axis states */

	int nhats;		/* Number of hats on the joystick */
	Uint8 *hats;		/* Current hat states */
	
	int nballs;		/* Number of trackballs on the joystick */
	struct balldelta {
		int dx;
		int dy;
	} *balls;		/* Current ball motion deltas */
	
	int nbuttons;		/* Number of buttons on the joystick */
	Uint8 *buttons;		/* Current button states */
	
	struct joystick_hwdata *hwdata;	/* Driver dependent information */

	int ref_count;		/* Reference count for multiple opens */
};

/* Function to scan the system for joysticks.
 * Joystick 0 should be the system default joystick.
 * This function should return the number of available joysticks, or -1
 * on an unrecoverable fatal error.
 */
extern int SDL_SYS_JoystickInit(void);

/* Function to get the device-dependent name of a joystick */
extern const char *SDL_SYS_JoystickName(int index);

/* Function to open a joystick for use.
   The joystick to open is specified by the index field of the joystick.
   This should fill the nbuttons and naxes fields of the joystick structure.
   It returns 0, or -1 if there is an error.
 */
extern int SDL_SYS_JoystickOpen(SDL_Joystick *joystick);

/* Function to update the state of a joystick - called as a device poll.
 * This function shouldn't update the joystick structure directly,
 * but instead should call SDL_PrivateJoystick*() to deliver events
 * and update joystick device state.
 */
extern void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick);

/* Function to close a joystick after use */
extern void SDL_SYS_JoystickClose(SDL_Joystick *joystick);

/* Function to perform any system-specific joystick related cleanup */
extern void SDL_SYS_JoystickQuit(void);