This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_dxjoystick.c
812 lines (709 loc) · 33.6 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2011 Sam Lantinga
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifdef SDL_JOYSTICK_DINPUT
/* DirectInput joystick driver; written by Glenn Maynard, based on Andrei de
* A. Formiga's WINMM driver.
*
* Hats and sliders are completely untested; the app I'm writing this for mostly
* doesn't use them and I don't own any joysticks with them.
*
* We don't bother to use event notification here. It doesn't seem to work
* with polled devices, and it's fine to call IDirectInputDevice2_GetDeviceData and
* let it return 0 events. */
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_joystick.h"
#include "../SDL_sysjoystick.h"
#include "../SDL_joystick_c.h"
41
#define INITGUID /* Only set here, if set twice will cause mingw32 to break. */
42
#include "SDL_dxjoystick_c.h"
43
44
45
46
47
48
49
#ifndef DIDFT_OPTIONAL
#define DIDFT_OPTIONAL 0x80000000
#endif
50
#define INPUT_QSIZE 32 /* Buffer up to 32 input messages */
51
52
53
54
#define MAX_JOYSTICKS 8
#define AXIS_MIN -32768 /* minimum value for axis coordinate */
#define AXIS_MAX 32767 /* maximum value for axis coordinate */
#define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/100) /* 1% motion */
55
56
/* external variables referenced. */
57
extern HWND SDL_HelperWindow;
58
59
60
61
/* local variables */
static LPDIRECTINPUT dinput = NULL;
62
63
64
extern HRESULT(WINAPI * DInputCreate) (HINSTANCE hinst, DWORD dwVersion,
LPDIRECTINPUT * ppDI,
LPUNKNOWN punkOuter);
65
static DIDEVICEINSTANCE SYS_Joystick[MAX_JOYSTICKS]; /* array to hold joystick ID values */
66
static char *SYS_JoystickNames[MAX_JOYSTICKS];
67
68
static int SYS_NumJoysticks;
static HINSTANCE DInputDLL = NULL;
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
/* local prototypes */
static void SetDIerror(const char *function, HRESULT code);
static BOOL CALLBACK EnumJoysticksCallback(const DIDEVICEINSTANCE *
pdidInstance, VOID * pContext);
static BOOL CALLBACK EnumDevObjectsCallback(LPCDIDEVICEOBJECTINSTANCE dev,
LPVOID pvRef);
static Uint8 TranslatePOV(DWORD value);
static int SDL_PrivateJoystickAxis_Int(SDL_Joystick * joystick, Uint8 axis,
Sint16 value);
static int SDL_PrivateJoystickHat_Int(SDL_Joystick * joystick, Uint8 hat,
Uint8 value);
static int SDL_PrivateJoystickButton_Int(SDL_Joystick * joystick,
Uint8 button, Uint8 state);
85
86
/* Taken from Wine - Thanks! */
DIOBJECTDATAFORMAT dfDIJoystick2[] = {
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
{ &GUID_XAxis,DIJOFS_X,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_YAxis,DIJOFS_Y,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_ZAxis,DIJOFS_Z,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RxAxis,DIJOFS_RX,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RyAxis,DIJOFS_RY,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RzAxis,DIJOFS_RZ,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,DIJOFS_SLIDER(0),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,DIJOFS_SLIDER(1),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_POV,DIJOFS_POV(0),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
{ &GUID_POV,DIJOFS_POV(1),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
{ &GUID_POV,DIJOFS_POV(2),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
{ &GUID_POV,DIJOFS_POV(3),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(0),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(1),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(2),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(3),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(4),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(5),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(6),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(7),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(8),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(9),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(10),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(11),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(12),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(13),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(14),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(15),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(16),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(17),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(18),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(19),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(20),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(21),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(22),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(23),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(24),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(25),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(26),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(27),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(28),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(29),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(30),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(31),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(32),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(33),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(34),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(35),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(36),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(37),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(38),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(39),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(40),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(41),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(42),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(43),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(44),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(45),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(46),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(47),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(48),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(49),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(50),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(51),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(52),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(53),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(54),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(55),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(56),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(57),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(58),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(59),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(60),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(61),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(62),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(63),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(64),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(65),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(66),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(67),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(68),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(69),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(70),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(71),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(72),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(73),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(74),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(75),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(76),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(77),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(78),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(79),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(80),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(81),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(82),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(83),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(84),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(85),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(86),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(87),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(88),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(89),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(90),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(91),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(92),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(93),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(94),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(95),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(96),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(97),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(98),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(99),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(100),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(101),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(102),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(103),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(104),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(105),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(106),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(107),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(108),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(109),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(110),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(111),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(112),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(113),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(114),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(115),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(116),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(117),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(118),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(119),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(120),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(121),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(122),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(123),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(124),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(125),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(126),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ NULL,DIJOFS_BUTTON(127),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
{ &GUID_XAxis,FIELD_OFFSET(DIJOYSTATE2,lVX),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_YAxis,FIELD_OFFSET(DIJOYSTATE2,lVY),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_ZAxis,FIELD_OFFSET(DIJOYSTATE2,lVZ),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RxAxis,FIELD_OFFSET(DIJOYSTATE2,lVRx),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RyAxis,FIELD_OFFSET(DIJOYSTATE2,lVRy),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RzAxis,FIELD_OFFSET(DIJOYSTATE2,lVRz),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglVSlider[0]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglVSlider[1]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_XAxis,FIELD_OFFSET(DIJOYSTATE2,lAX),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_YAxis,FIELD_OFFSET(DIJOYSTATE2,lAY),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_ZAxis,FIELD_OFFSET(DIJOYSTATE2,lAZ),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RxAxis,FIELD_OFFSET(DIJOYSTATE2,lARx),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RyAxis,FIELD_OFFSET(DIJOYSTATE2,lARy),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RzAxis,FIELD_OFFSET(DIJOYSTATE2,lARz),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglASlider[0]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglASlider[1]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_XAxis,FIELD_OFFSET(DIJOYSTATE2,lFX),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_YAxis,FIELD_OFFSET(DIJOYSTATE2,lFY),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_ZAxis,FIELD_OFFSET(DIJOYSTATE2,lFZ),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RxAxis,FIELD_OFFSET(DIJOYSTATE2,lFRx),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RyAxis,FIELD_OFFSET(DIJOYSTATE2,lFRy),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_RzAxis,FIELD_OFFSET(DIJOYSTATE2,lFRz),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglFSlider[0]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
{ &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglFSlider[1]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
251
252
253
254
255
256
257
258
259
260
261
};
const DIDATAFORMAT c_dfDIJoystick2 = {
sizeof(DIDATAFORMAT),
sizeof(DIOBJECTDATAFORMAT),
DIDF_ABSAXIS,
sizeof(DIJOYSTATE2),
SDL_arraysize(dfDIJoystick2),
dfDIJoystick2
};
262
263
264
/* Convert a DirectInput return code to a text message */
static void
265
SetDIerror(const char *function, HRESULT code)
266
{
267
/*
268
269
SDL_SetError("%s() [%s]: %s", function,
DXGetErrorString9A(code), DXGetErrorDescription9A(code));
270
271
*/
SDL_SetError("%s() DirectX error %d", function, code);
272
273
274
275
276
277
278
279
280
281
282
283
}
/* Function to scan the system for joysticks.
* This function should set SDL_numjoysticks to the number of available
* joysticks. Joystick 0 should be the system default joystick.
* It should return 0, or -1 on an unrecoverable fatal error.
*/
int
SDL_SYS_JoystickInit(void)
{
HRESULT result;
284
HINSTANCE instance;
285
286
287
SYS_NumJoysticks = 0;
288
289
290
result = CoInitialize(NULL);
if (FAILED(result)) {
SetDIerror("CoInitialize", result);
291
292
return (-1);
}
293
294
result = CoCreateInstance(&CLSID_DirectInput, NULL, CLSCTX_INPROC_SERVER,
295
&IID_IDirectInput, (LPVOID)&dinput);
296
297
298
if (FAILED(result)) {
SetDIerror("CoCreateInstance", result);
299
300
301
return (-1);
}
302
/* Because we used CoCreateInstance, we need to Initialize it, first. */
303
304
305
306
307
308
309
instance = GetModuleHandle(NULL);
if (instance == NULL) {
SDL_SetError("GetModuleHandle() failed with error code %d.",
GetLastError());
return (-1);
}
result = IDirectInput_Initialize(dinput, instance, DIRECTINPUT_VERSION);
310
311
312
313
314
315
316
if (FAILED(result)) {
SetDIerror("IDirectInput::Initialize", result);
return (-1);
}
/* Look for joysticks, wheels, head trackers, gamepads, etc.. */
317
318
319
320
321
322
323
324
result = IDirectInput_EnumDevices(dinput,
DIDEVTYPE_JOYSTICK,
EnumJoysticksCallback,
NULL, DIEDFL_ATTACHEDONLY);
return SYS_NumJoysticks;
}
325
326
327
static BOOL CALLBACK
EnumJoysticksCallback(const DIDEVICEINSTANCE * pdidInstance, VOID * pContext)
{
328
329
SDL_memcpy(&SYS_Joystick[SYS_NumJoysticks], pdidInstance,
sizeof(DIDEVICEINSTANCE));
330
SYS_JoystickNames[SYS_NumJoysticks] = WIN_StringToUTF8(pdidInstance->tszProductName);
331
332
333
334
335
336
337
338
SYS_NumJoysticks++;
if (SYS_NumJoysticks >= MAX_JOYSTICKS)
return DIENUM_STOP;
return DIENUM_CONTINUE;
}
339
340
341
342
/* Function to get the device-dependent name of a joystick */
const char *
SDL_SYS_JoystickName(int index)
{
343
return SYS_JoystickNames[index];
344
345
346
347
348
349
350
351
352
353
354
355
}
/* Function to open a joystick for use.
The joystick to open is specified by the index field of the joystick.
This should fill the nbuttons and naxes fields of the joystick structure.
It returns 0, or -1 if there is an error.
*/
int
SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
{
HRESULT result;
LPDIRECTINPUTDEVICE device;
356
357
DIPROPDWORD dipdw;
358
SDL_memset(&dipdw, 0, sizeof(DIPROPDWORD));
359
360
361
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
362
363
364
/* allocate memory for system specific hardware data */
joystick->hwdata =
365
(struct joystick_hwdata *) SDL_malloc(sizeof(struct joystick_hwdata));
366
367
368
369
if (joystick->hwdata == NULL) {
SDL_OutOfMemory();
return (-1);
}
370
SDL_memset(joystick->hwdata, 0, sizeof(struct joystick_hwdata));
371
joystick->hwdata->buffered = 1;
372
joystick->hwdata->Capabilities.dwSize = sizeof(DIDEVCAPS);
373
374
375
result =
IDirectInput_CreateDevice(dinput,
376
377
&SYS_Joystick[joystick->index].
guidInstance, &device, NULL);
378
379
if (FAILED(result)) {
SetDIerror("IDirectInput::CreateDevice", result);
380
381
382
return (-1);
}
383
/* Now get the IDirectInputDevice2 interface, instead. */
384
385
result = IDirectInputDevice_QueryInterface(device,
&IID_IDirectInputDevice2,
386
387
(LPVOID *) & joystick->
hwdata->InputDevice);
388
/* We are done with this object. Use the stored one from now on. */
389
IDirectInputDevice_Release(device);
390
391
392
if (FAILED(result)) {
SetDIerror("IDirectInputDevice::QueryInterface", result);
393
394
395
return (-1);
}
396
397
/* Aquire shared access. Exclusive access is required for forces,
* though. */
398
result =
399
400
IDirectInputDevice2_SetCooperativeLevel(joystick->hwdata->
InputDevice, SDL_HelperWindow,
401
DISCL_EXCLUSIVE |
402
DISCL_BACKGROUND);
403
404
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::SetCooperativeLevel", result);
405
406
407
return (-1);
}
408
/* Use the extended data structure: DIJOYSTATE2. */
409
410
result =
IDirectInputDevice2_SetDataFormat(joystick->hwdata->InputDevice,
411
412
413
&c_dfDIJoystick2);
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::SetDataFormat", result);
414
415
416
return (-1);
}
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
/* Get device capabilities */
result =
IDirectInputDevice2_GetCapabilities(joystick->hwdata->InputDevice,
&joystick->hwdata->Capabilities);
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::GetCapabilities", result);
return (-1);
}
/* Force capable? */
if (joystick->hwdata->Capabilities.dwFlags & DIDC_FORCEFEEDBACK) {
result = IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::Acquire", result);
return (-1);
}
/* reset all accuators. */
result =
439
440
IDirectInputDevice2_SendForceFeedbackCommand(joystick->hwdata->
InputDevice,
441
442
DISFFC_RESET);
443
/* Not necessarily supported, ignore if not supported.
444
445
446
447
448
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::SendForceFeedbackCommand",
result);
return (-1);
}
449
*/
450
451
452
453
454
455
456
457
458
459
result = IDirectInputDevice2_Unacquire(joystick->hwdata->InputDevice);
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::Unacquire", result);
return (-1);
}
/* Turn on auto-centering for a ForceFeedback device (until told
* otherwise). */
460
461
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
462
463
dipdw.dwData = DIPROPAUTOCENTER_ON;
464
465
result =
IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
466
467
DIPROP_AUTOCENTER, &dipdw.diph);
468
/* Not necessarily supported, ignore if not supported.
469
470
if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::SetProperty", result);
471
472
return (-1);
}
473
*/
474
475
}
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
/* What buttons and axes does it have? */
IDirectInputDevice2_EnumObjects(joystick->hwdata->InputDevice,
EnumDevObjectsCallback, joystick,
DIDFT_BUTTON | DIDFT_AXIS | DIDFT_POV);
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = INPUT_QSIZE;
/* Set the buffer size */
result =
IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
DIPROP_BUFFERSIZE, &dipdw.diph);
if (result == DI_POLLEDDEVICE) {
/* This device doesn't support buffering, so we're forced
* to use less reliable polling. */
joystick->hwdata->buffered = 0;
} else if (FAILED(result)) {
SetDIerror("IDirectInputDevice2::SetProperty", result);
return (-1);
}
499
500
501
return (0);
}
502
503
static BOOL CALLBACK
EnumDevObjectsCallback(LPCDIDEVICEOBJECTINSTANCE dev, LPVOID pvRef)
504
{
505
506
507
SDL_Joystick *joystick = (SDL_Joystick *) pvRef;
HRESULT result;
input_t *in = &joystick->hwdata->Inputs[joystick->hwdata->NumInputs];
508
509
in->ofs = dev->dwOfs;
510
511
512
513
514
515
516
517
518
519
520
521
if (dev->dwType & DIDFT_BUTTON) {
in->type = BUTTON;
in->num = joystick->nbuttons;
joystick->nbuttons++;
} else if (dev->dwType & DIDFT_POV) {
in->type = HAT;
in->num = joystick->nhats;
joystick->nhats++;
} else if (dev->dwType & DIDFT_AXIS) {
DIPROPRANGE diprg;
DIPROPDWORD dilong;
522
523
524
in->type = AXIS;
in->num = joystick->naxes;
525
526
527
528
529
530
531
diprg.diph.dwSize = sizeof(diprg);
diprg.diph.dwHeaderSize = sizeof(diprg.diph);
diprg.diph.dwObj = dev->dwOfs;
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.lMin = AXIS_MIN;
diprg.lMax = AXIS_MAX;
532
533
534
535
536
537
538
result =
IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
DIPROP_RANGE, &diprg.diph);
if (FAILED(result)) {
return DIENUM_CONTINUE; /* don't use this axis */
}
539
540
541
542
543
544
545
546
547
548
549
550
551
/* Set dead zone to 0. */
dilong.diph.dwSize = sizeof(dilong);
dilong.diph.dwHeaderSize = sizeof(dilong.diph);
dilong.diph.dwObj = dev->dwOfs;
dilong.diph.dwHow = DIPH_BYOFFSET;
dilong.dwData = 0;
result =
IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
DIPROP_DEADZONE, &dilong.diph);
if (FAILED(result)) {
return DIENUM_CONTINUE; /* don't use this axis */
}
552
553
554
555
556
557
558
559
560
561
562
563
564
565
joystick->naxes++;
} else {
/* not supported at this time */
return DIENUM_CONTINUE;
}
joystick->hwdata->NumInputs++;
if (joystick->hwdata->NumInputs == MAX_INPUTS) {
return DIENUM_STOP; /* too many */
}
return DIENUM_CONTINUE;
566
567
568
569
570
571
572
573
574
575
}
/* Function to update the state of a joystick - called as a device poll.
* This function shouldn't update the joystick structure directly,
* but instead should call SDL_PrivateJoystick*() to deliver events
* and update joystick device state.
*/
void
SDL_SYS_JoystickUpdate_Polled(SDL_Joystick * joystick)
{
576
DIJOYSTATE2 state;
577
578
579
580
581
HRESULT result;
int i;
result =
IDirectInputDevice2_GetDeviceState(joystick->hwdata->InputDevice,
582
sizeof(DIJOYSTATE2), &state);
583
584
585
if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED) {
IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
result =
586
587
IDirectInputDevice2_GetDeviceState(joystick->hwdata->InputDevice,
sizeof(DIJOYSTATE2), &state);
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
}
/* Set each known axis, button and POV. */
for (i = 0; i < joystick->hwdata->NumInputs; ++i) {
const input_t *in = &joystick->hwdata->Inputs[i];
switch (in->type) {
case AXIS:
switch (in->ofs) {
case DIJOFS_X:
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.lX);
break;
case DIJOFS_Y:
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.lY);
break;
case DIJOFS_Z:
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.lZ);
break;
case DIJOFS_RX:
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.lRx);
break;
case DIJOFS_RY:
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.lRy);
break;
case DIJOFS_RZ:
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.lRz);
break;
case DIJOFS_SLIDER(0):
SDL_PrivateJoystickAxis_Int(joystick, in->num,
(Sint16) state.rglSlider[0]);
break;
case DIJOFS_SLIDER(1):
SDL_PrivateJoystickAxis_Int(joystick, in->num,
627
(Sint16) state.rglSlider[1]);
628
629
630
631
632
633
634
break;
}
break;
case BUTTON:
SDL_PrivateJoystickButton_Int(joystick, in->num,
635
636
637
(Uint8) (state.
rgbButtons[in->ofs -
DIJOFS_BUTTON0]
638
639
640
641
642
? SDL_PRESSED :
SDL_RELEASED));
break;
case HAT:
{
643
644
Uint8 pos = TranslatePOV(state.rgdwPOV[in->ofs -
DIJOFS_POV(0)]);
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
SDL_PrivateJoystickHat_Int(joystick, in->num, pos);
break;
}
}
}
}
void
SDL_SYS_JoystickUpdate_Buffered(SDL_Joystick * joystick)
{
int i;
HRESULT result;
DWORD numevents;
DIDEVICEOBJECTDATA evtbuf[INPUT_QSIZE];
numevents = INPUT_QSIZE;
result =
IDirectInputDevice2_GetDeviceData(joystick->hwdata->InputDevice,
663
664
sizeof(DIDEVICEOBJECTDATA), evtbuf,
&numevents, 0);
665
666
667
if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED) {
IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
result =
668
IDirectInputDevice2_GetDeviceData(joystick->hwdata->InputDevice,
669
670
671
672
sizeof(DIDEVICEOBJECTDATA),
evtbuf, &numevents, 0);
}
673
674
/* Handle the events or punt */
if (FAILED(result))
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
return;
for (i = 0; i < (int) numevents; ++i) {
int j;
for (j = 0; j < joystick->hwdata->NumInputs; ++j) {
const input_t *in = &joystick->hwdata->Inputs[j];
if (evtbuf[i].dwOfs != in->ofs)
continue;
switch (in->type) {
case AXIS:
SDL_PrivateJoystickAxis(joystick, in->num,
(Sint16) evtbuf[i].dwData);
break;
case BUTTON:
SDL_PrivateJoystickButton(joystick, in->num,
693
694
(Uint8) (evtbuf[i].
dwData ? SDL_PRESSED :
695
SDL_RELEASED));
696
697
698
699
700
701
702
703
704
705
706
break;
case HAT:
{
Uint8 pos = TranslatePOV(evtbuf[i].dwData);
SDL_PrivateJoystickHat(joystick, in->num, pos);
}
}
}
}
}
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
static Uint8
TranslatePOV(DWORD value)
{
const int HAT_VALS[] = {
SDL_HAT_UP,
SDL_HAT_UP | SDL_HAT_RIGHT,
SDL_HAT_RIGHT,
SDL_HAT_DOWN | SDL_HAT_RIGHT,
SDL_HAT_DOWN,
SDL_HAT_DOWN | SDL_HAT_LEFT,
SDL_HAT_LEFT,
SDL_HAT_UP | SDL_HAT_LEFT
};
if (LOWORD(value) == 0xFFFF)
return SDL_HAT_CENTERED;
/* Round the value up: */
value += 4500 / 2;
value %= 36000;
value /= 4500;
if (value >= 8)
return SDL_HAT_CENTERED; /* shouldn't happen */
return HAT_VALS[value];
}
/* SDL_PrivateJoystick* doesn't discard duplicate events, so we need to
* do it. */
static int
SDL_PrivateJoystickAxis_Int(SDL_Joystick * joystick, Uint8 axis, Sint16 value)
{
if (joystick->axes[axis] != value)
return SDL_PrivateJoystickAxis(joystick, axis, value);
return 0;
}
static int
SDL_PrivateJoystickHat_Int(SDL_Joystick * joystick, Uint8 hat, Uint8 value)
{
if (joystick->hats[hat] != value)
return SDL_PrivateJoystickHat(joystick, hat, value);
return 0;
}
static int
SDL_PrivateJoystickButton_Int(SDL_Joystick * joystick, Uint8 button,
Uint8 state)
{
if (joystick->buttons[button] != state)
return SDL_PrivateJoystickButton(joystick, button, state);
return 0;
}
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
void
SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
{
HRESULT result;
result = IDirectInputDevice2_Poll(joystick->hwdata->InputDevice);
if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED) {
IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
IDirectInputDevice2_Poll(joystick->hwdata->InputDevice);
}
if (joystick->hwdata->buffered)
SDL_SYS_JoystickUpdate_Buffered(joystick);
else
SDL_SYS_JoystickUpdate_Polled(joystick);
}
/* Function to close a joystick after use */
void
SDL_SYS_JoystickClose(SDL_Joystick * joystick)
{
IDirectInputDevice2_Unacquire(joystick->hwdata->InputDevice);
IDirectInputDevice2_Release(joystick->hwdata->InputDevice);
if (joystick->hwdata != NULL) {
/* free system specific hardware data */
789
SDL_free(joystick->hwdata);
790
791
792
793
794
795
796
}
}
/* Function to perform any system-specific joystick related cleanup */
void
SDL_SYS_JoystickQuit(void)
{
797
798
799
800
801
802
803
804
805
int i;
for (i = 0; i < SDL_arraysize(SYS_JoystickNames); ++i) {
if (SYS_JoystickNames[i]) {
SDL_free(SYS_JoystickNames[i]);
SYS_JoystickNames[i] = NULL;
}
}
806
807
808
809
810
IDirectInput_Release(dinput);
dinput = NULL;
}
#endif /* SDL_JOYSTICK_DINPUT */
811
812
/* vi: set ts=4 sw=4 expandtab: */