SDL  2.0
SDL_sysjoystick.c
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 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 SDL_JoystickGUID
62 DUMMY_JoystickGetDeviceGUID(int device_index)
63 {
64  SDL_JoystickGUID guid;
65  SDL_zero(guid);
66  return guid;
67 }
68 
69 static SDL_JoystickID
70 DUMMY_JoystickGetDeviceInstanceID(int device_index)
71 {
72  return -1;
73 }
74 
75 static int
76 DUMMY_JoystickOpen(SDL_Joystick * joystick, int device_index)
77 {
78  return SDL_SetError("Logic error: No joysticks available");
79 }
80 
81 static int
82 DUMMY_JoystickRumble(SDL_Joystick * joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms)
83 {
84  return SDL_Unsupported();
85 }
86 
87 static void
88 DUMMY_JoystickUpdate(SDL_Joystick * joystick)
89 {
90 }
91 
92 static void
93 DUMMY_JoystickClose(SDL_Joystick * joystick)
94 {
95 }
96 
97 static void
98 DUMMY_JoystickQuit(void)
99 {
100 }
101 
103 {
104  DUMMY_JoystickInit,
105  DUMMY_JoystickGetCount,
106  DUMMY_JoystickDetect,
107  DUMMY_JoystickGetDeviceName,
108  DUMMY_JoystickGetDevicePlayerIndex,
109  DUMMY_JoystickGetDeviceGUID,
110  DUMMY_JoystickGetDeviceInstanceID,
111  DUMMY_JoystickOpen,
112  DUMMY_JoystickRumble,
113  DUMMY_JoystickUpdate,
114  DUMMY_JoystickClose,
115  DUMMY_JoystickQuit,
116 };
117 
118 #endif /* SDL_JOYSTICK_DUMMY || SDL_JOYSTICK_DISABLED */
119 
120 /* vi: set ts=4 sw=4 expandtab: */
SDL_JoystickDriver SDL_DUMMY_JoystickDriver
uint32_t Uint32
Definition: SDL_stdinc.h:203
Sint32 SDL_JoystickID
Definition: SDL_joystick.h:81
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
#define NULL
Definition: begin_code.h:164
#define SDL_SetError
uint16_t Uint16
Definition: SDL_stdinc.h:191
#define SDL_Unsupported()
Definition: SDL_error.h:53