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SDL_sysjoystick.c (3586B)

      1 /*
      2   Simple DirectMedia Layer
      3   Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
      4 
      5   This software is provided 'as-is', without any express or implied
      6   warranty.  In no event will the authors be held liable for any damages
      7   arising from the use of this software.
      8 
      9   Permission is granted to anyone to use this software for any purpose,
     10   including commercial applications, and to alter it and redistribute it
     11   freely, subject to the following restrictions:
     12 
     13   1. The origin of this software must not be misrepresented; you must not
     14      claim that you wrote the original software. If you use this software
     15      in a product, an acknowledgment in the product documentation would be
     16      appreciated but is not required.
     17   2. Altered source versions must be plainly marked as such, and must not be
     18      misrepresented as being the original software.
     19   3. This notice may not be removed or altered from any source distribution.
     20 */
     21 #include "../../SDL_internal.h"
     22 
     23 #if defined(SDL_JOYSTICK_DUMMY) || defined(SDL_JOYSTICK_DISABLED)
     24 
     25 /* This is the dummy implementation of the SDL joystick API */
     26 
     27 #include "SDL_joystick.h"
     28 #include "../SDL_sysjoystick.h"
     29 #include "../SDL_joystick_c.h"
     30 
     31 
     32 static int
     33 DUMMY_JoystickInit(void)
     34 {
     35     return 0;
     36 }
     37 
     38 static int
     39 DUMMY_JoystickGetCount(void)
     40 {
     41     return 0;
     42 }
     43 
     44 static void
     45 DUMMY_JoystickDetect(void)
     46 {
     47 }
     48 
     49 static const char *
     50 DUMMY_JoystickGetDeviceName(int device_index)
     51 {
     52     return NULL;
     53 }
     54 
     55 static int
     56 DUMMY_JoystickGetDevicePlayerIndex(int device_index)
     57 {
     58     return -1;
     59 }
     60 
     61 static void
     62 DUMMY_JoystickSetDevicePlayerIndex(int device_index, int player_index)
     63 {
     64 }
     65 
     66 static SDL_JoystickGUID
     67 DUMMY_JoystickGetDeviceGUID(int device_index)
     68 {
     69     SDL_JoystickGUID guid;
     70     SDL_zero(guid);
     71     return guid;
     72 }
     73 
     74 static SDL_JoystickID
     75 DUMMY_JoystickGetDeviceInstanceID(int device_index)
     76 {
     77     return -1;
     78 }
     79 
     80 static int
     81 DUMMY_JoystickOpen(SDL_Joystick *joystick, int device_index)
     82 {
     83     return SDL_SetError("Logic error: No joysticks available");
     84 }
     85 
     86 static int
     87 DUMMY_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
     88 {
     89     return SDL_Unsupported();
     90 }
     91 
     92 static int
     93 DUMMY_JoystickRumbleTriggers(SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble)
     94 {
     95     return SDL_Unsupported();
     96 }
     97 
     98 static SDL_bool
     99 DUMMY_JoystickHasLED(SDL_Joystick *joystick)
    100 {
    101     return SDL_FALSE;
    102 }
    103 
    104 static int
    105 DUMMY_JoystickSetLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
    106 {
    107     return SDL_Unsupported();
    108 }
    109 
    110 static int
    111 DUMMY_JoystickSetSensorsEnabled(SDL_Joystick *joystick, SDL_bool enabled)
    112 {
    113     return SDL_Unsupported();
    114 }
    115 
    116 static void
    117 DUMMY_JoystickUpdate(SDL_Joystick *joystick)
    118 {
    119 }
    120 
    121 static void
    122 DUMMY_JoystickClose(SDL_Joystick *joystick)
    123 {
    124 }
    125 
    126 static void
    127 DUMMY_JoystickQuit(void)
    128 {
    129 }
    130 
    131 static SDL_bool
    132 DUMMY_JoystickGetGamepadMapping(int device_index, SDL_GamepadMapping *out)
    133 {
    134     return SDL_FALSE;
    135 }
    136 
    137 SDL_JoystickDriver SDL_DUMMY_JoystickDriver =
    138 {
    139     DUMMY_JoystickInit,
    140     DUMMY_JoystickGetCount,
    141     DUMMY_JoystickDetect,
    142     DUMMY_JoystickGetDeviceName,
    143     DUMMY_JoystickGetDevicePlayerIndex,
    144     DUMMY_JoystickSetDevicePlayerIndex,
    145     DUMMY_JoystickGetDeviceGUID,
    146     DUMMY_JoystickGetDeviceInstanceID,
    147     DUMMY_JoystickOpen,
    148     DUMMY_JoystickRumble,
    149     DUMMY_JoystickRumbleTriggers,
    150     DUMMY_JoystickHasLED,
    151     DUMMY_JoystickSetLED,
    152     DUMMY_JoystickSetSensorsEnabled,
    153     DUMMY_JoystickUpdate,
    154     DUMMY_JoystickClose,
    155     DUMMY_JoystickQuit,
    156     DUMMY_JoystickGetGamepadMapping
    157 };
    158 
    159 #endif /* SDL_JOYSTICK_DUMMY || SDL_JOYSTICK_DISABLED */
    160 
    161 /* vi: set ts=4 sw=4 expandtab: */