Mercurial > sdl-ios-xcode
annotate include/SDL_joystick.h @ 1204:f9794ee91dfc
Date: Tue, 13 Dec 2005 13:33:50 +0000
From: "alan buckley"
Subject: Patch to fix audio locking on RISC OS
When threads were not disabled on a RISC OS build
the audio mixer mutex was not created.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 13 Dec 2005 16:40:12 +0000 |
| parents | e6ceebb0f0eb |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Include file for SDL joystick event handling */ | |
| 29 | |
| 30 #ifndef _SDL_joystick_h | |
| 31 #define _SDL_joystick_h | |
| 32 | |
| 33 #include "SDL_types.h" | |
| 34 | |
| 35 #include "begin_code.h" | |
| 36 /* Set up for C function definitions, even when using C++ */ | |
| 37 #ifdef __cplusplus | |
| 38 extern "C" { | |
| 39 #endif | |
| 40 | |
| 41 /* In order to use these functions, SDL_Init() must have been called | |
| 42 with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system | |
| 43 for joysticks, and load appropriate drivers. | |
| 44 */ | |
| 45 | |
| 46 /* The joystick structure used to identify an SDL joystick */ | |
| 47 struct _SDL_Joystick; | |
| 48 typedef struct _SDL_Joystick SDL_Joystick; | |
| 49 | |
| 50 | |
| 51 /* Function prototypes */ | |
| 52 /* | |
| 53 * Count the number of joysticks attached to the system | |
| 54 */ | |
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55 extern DECLSPEC int SDLCALL SDL_NumJoysticks(void); |
| 0 | 56 |
| 57 /* | |
| 58 * Get the implementation dependent name of a joystick. | |
| 59 * This can be called before any joysticks are opened. | |
| 60 * If no name can be found, this function returns NULL. | |
| 61 */ | |
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62 extern DECLSPEC const char * SDLCALL SDL_JoystickName(int device_index); |
| 0 | 63 |
| 64 /* | |
| 65 * Open a joystick for use - the index passed as an argument refers to | |
| 66 * the N'th joystick on the system. This index is the value which will | |
| 67 * identify this joystick in future joystick events. | |
| 68 * | |
| 69 * This function returns a joystick identifier, or NULL if an error occurred. | |
| 70 */ | |
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71 extern DECLSPEC SDL_Joystick * SDLCALL SDL_JoystickOpen(int device_index); |
| 0 | 72 |
| 73 /* | |
| 74 * Returns 1 if the joystick has been opened, or 0 if it has not. | |
| 75 */ | |
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76 extern DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index); |
| 0 | 77 |
| 78 /* | |
| 79 * Get the device index of an opened joystick. | |
| 80 */ | |
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81 extern DECLSPEC int SDLCALL SDL_JoystickIndex(SDL_Joystick *joystick); |
| 0 | 82 |
| 83 /* | |
| 84 * Get the number of general axis controls on a joystick | |
| 85 */ | |
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86 extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick *joystick); |
| 0 | 87 |
| 88 /* | |
| 89 * Get the number of trackballs on a joystick | |
| 90 * Joystick trackballs have only relative motion events associated | |
| 91 * with them and their state cannot be polled. | |
| 92 */ | |
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93 extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick *joystick); |
| 0 | 94 |
| 95 /* | |
| 96 * Get the number of POV hats on a joystick | |
| 97 */ | |
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98 extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick *joystick); |
| 0 | 99 |
| 100 /* | |
| 101 * Get the number of buttons on a joystick | |
| 102 */ | |
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103 extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick *joystick); |
| 0 | 104 |
| 105 /* | |
| 106 * Update the current state of the open joysticks. | |
| 107 * This is called automatically by the event loop if any joystick | |
| 108 * events are enabled. | |
| 109 */ | |
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110 extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void); |
| 0 | 111 |
| 112 /* | |
| 113 * Enable/disable joystick event polling. | |
| 114 * If joystick events are disabled, you must call SDL_JoystickUpdate() | |
| 115 * yourself and check the state of the joystick when you want joystick | |
| 116 * information. | |
| 117 * The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. | |
| 118 */ | |
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119 extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state); |
| 0 | 120 |
| 121 /* | |
| 122 * Get the current state of an axis control on a joystick | |
| 123 * The state is a value ranging from -32768 to 32767. | |
| 124 * The axis indices start at index 0. | |
| 125 */ | |
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126 extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick, int axis); |
| 0 | 127 |
| 128 /* | |
| 129 * Get the current state of a POV hat on a joystick | |
| 130 * The return value is one of the following positions: | |
| 131 */ | |
| 132 #define SDL_HAT_CENTERED 0x00 | |
| 133 #define SDL_HAT_UP 0x01 | |
| 134 #define SDL_HAT_RIGHT 0x02 | |
| 135 #define SDL_HAT_DOWN 0x04 | |
| 136 #define SDL_HAT_LEFT 0x08 | |
| 137 #define SDL_HAT_RIGHTUP (SDL_HAT_RIGHT|SDL_HAT_UP) | |
| 138 #define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN) | |
| 139 #define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP) | |
| 140 #define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN) | |
| 141 /* | |
| 142 * The hat indices start at index 0. | |
| 143 */ | |
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144 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick *joystick, int hat); |
| 0 | 145 |
| 146 /* | |
| 147 * Get the ball axis change since the last poll | |
| 148 * This returns 0, or -1 if you passed it invalid parameters. | |
| 149 * The ball indices start at index 0. | |
| 150 */ | |
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151 extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick *joystick, int ball, int *dx, int *dy); |
| 0 | 152 |
| 153 /* | |
| 154 * Get the current state of a button on a joystick | |
| 155 * The button indices start at index 0. | |
| 156 */ | |
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157 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick *joystick, int button); |
| 0 | 158 |
| 159 /* | |
| 160 * Close a joystick previously opened with SDL_JoystickOpen() | |
| 161 */ | |
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162 extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick *joystick); |
| 0 | 163 |
| 164 | |
| 165 /* Ends C function definitions when using C++ */ | |
| 166 #ifdef __cplusplus | |
| 167 } | |
| 168 #endif | |
| 169 #include "close_code.h" | |
| 170 | |
| 171 #endif /* _SDL_joystick_h */ |