SDL  2.0
SDL_sysjoystick.c
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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 void
93 DUMMY_JoystickUpdate(SDL_Joystick * joystick)
94 {
95 }
96 
97 static void
98 DUMMY_JoystickClose(SDL_Joystick * joystick)
99 {
100 }
101 
102 static void
103 DUMMY_JoystickQuit(void)
104 {
105 }
106 
107 SDL_JoystickDriver SDL_DUMMY_JoystickDriver =
108 {
109  DUMMY_JoystickInit,
110  DUMMY_JoystickGetCount,
111  DUMMY_JoystickDetect,
112  DUMMY_JoystickGetDeviceName,
113  DUMMY_JoystickGetDevicePlayerIndex,
114  DUMMY_JoystickSetDevicePlayerIndex,
115  DUMMY_JoystickGetDeviceGUID,
116  DUMMY_JoystickGetDeviceInstanceID,
117  DUMMY_JoystickOpen,
118  DUMMY_JoystickRumble,
119  DUMMY_JoystickUpdate,
120  DUMMY_JoystickClose,
121  DUMMY_JoystickQuit,
122 };
123 
124 #endif /* SDL_JOYSTICK_DUMMY || SDL_JOYSTICK_DISABLED */
125 
126 /* vi: set ts=4 sw=4 expandtab: */
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:418
NULL
#define NULL
Definition: begin_code.h:167
SDL_joystick.h
SDL_JoystickID
Sint32 SDL_JoystickID
Definition: SDL_joystick.h:81
SDL_DUMMY_JoystickDriver
SDL_JoystickDriver SDL_DUMMY_JoystickDriver
Uint16
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_Unsupported
#define SDL_Unsupported()
Definition: SDL_error.h:53
SDL_JoystickGUID
Definition: SDL_joystick.h:70