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annotate src/joystick/SDL_joystick_c.h @ 461:1d36f593078a

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Date: Thu, 18 Jul 2002 23:51:40 +0200 (MEST) From: Krister Walfridsson Subject: [SDL] src/joystick/bsd/SDL_sysjoystick.c patch The *BSD USB HID joystick code has two serious bugs: 1. If a joystick reports unhandled hid_input usage (for example HUG_RZ or HUG_DIAL), then the last handled value will be overwritten with an arbitrary value. (Fixed in the patch below by adding a default case.) 2. The current code does only handle logical coordinates in the range 0-255, while a big part of available joysticks report -128 - 127. (This is solved in the patch below by first center the range around 0, and then stretch it to the correct range.)
author Sam Lantinga <slouken@libsdl.org>
date Tue, 20 Aug 2002 06:08:42 +0000
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* Useful functions and variables from SDL_joystick.c */
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29 #include "SDL_joystick.h"
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30
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31 /* The number of available joysticks on the system */
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32 extern Uint8 SDL_numjoysticks;
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33
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34 /* Internal event queueing functions */
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35 extern int SDL_PrivateJoystickAxis(SDL_Joystick *joystick,
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36 Uint8 axis, Sint16 value);
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37 extern int SDL_PrivateJoystickBall(SDL_Joystick *joystick,
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38 Uint8 ball, Sint16 xrel, Sint16 yrel);
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39 extern int SDL_PrivateJoystickHat(SDL_Joystick *joystick,
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40 Uint8 hat, Uint8 value);
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41 extern int SDL_PrivateJoystickButton(SDL_Joystick *joystick,
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42 Uint8 button, Uint8 state);