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[wine] / dlls / winmm / joystick.c
1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
2 /*
3  * joystick functions
4  *
5  * Copyright 1997 Andreas Mohr
6  *           2000 Wolfgang Schwotzer
7  *                Eric Pouech
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22  */
23
24 #include "config.h"
25
26 #ifdef HAVE_UNISTD_H
27 # include <unistd.h>
28 #endif
29 #include <stdarg.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <fcntl.h>
34 #ifdef HAVE_SYS_IOCTL_H
35 #include <sys/ioctl.h>
36 #endif
37
38 #include "windef.h"
39 #include "winbase.h"
40 #include "mmsystem.h"
41 #include "wingdi.h"
42 #include "winuser.h"
43 #include "winnls.h"
44
45 #include "mmddk.h"
46
47 #include "wine/debug.h"
48
49 WINE_DEFAULT_DEBUG_CHANNEL(winmm);
50
51 #define MAXJOYSTICK     (JOYSTICKID2 + 1)
52 #define JOY_PERIOD_MIN  (10)    /* min Capture time period */
53 #define JOY_PERIOD_MAX  (1000)  /* max Capture time period */
54
55 typedef struct tagWINE_JOYSTICK {
56     JOYINFO     ji;
57     HWND        hCapture;
58     UINT        wTimer;
59     DWORD       threshold;
60     BOOL        bChanged;
61     HDRVR       hDriver;
62 } WINE_JOYSTICK;
63
64 static  WINE_JOYSTICK   JOY_Sticks[MAXJOYSTICK];
65
66 /**************************************************************************
67  *                              JOY_LoadDriver          [internal]
68  */
69 static  BOOL JOY_LoadDriver(DWORD dwJoyID)
70 {
71     if (dwJoyID >= MAXJOYSTICK)
72         return FALSE;
73     if (JOY_Sticks[dwJoyID].hDriver)
74         return TRUE;
75
76     JOY_Sticks[dwJoyID].hDriver = OpenDriverA("winejoystick.drv", 0, dwJoyID);
77     return (JOY_Sticks[dwJoyID].hDriver != 0);
78 }
79
80 /**************************************************************************
81  *                              JOY_Timer               [internal]
82  */
83 static  void    CALLBACK        JOY_Timer(HWND hWnd, UINT wMsg, UINT_PTR wTimer, DWORD dwTime)
84 {
85     int                 i;
86     WINE_JOYSTICK*      joy;
87     JOYINFO             ji;
88     LONG                pos;
89     unsigned            buttonChange;
90
91     for (i = 0; i < MAXJOYSTICK; i++) {
92         joy = &JOY_Sticks[i];
93
94         if (joy->hCapture != hWnd) continue;
95
96         joyGetPos(i, &ji);
97         pos = MAKELONG(ji.wXpos, ji.wYpos);
98
99         if (!joy->bChanged ||
100             abs(joy->ji.wXpos - ji.wXpos) > joy->threshold ||
101             abs(joy->ji.wYpos - ji.wYpos) > joy->threshold) {
102             SendMessageA(joy->hCapture, MM_JOY1MOVE + i, ji.wButtons, pos);
103             joy->ji.wXpos = ji.wXpos;
104             joy->ji.wYpos = ji.wYpos;
105         }
106         if (!joy->bChanged ||
107             abs(joy->ji.wZpos - ji.wZpos) > joy->threshold) {
108             SendMessageA(joy->hCapture, MM_JOY1ZMOVE + i, ji.wButtons, pos);
109             joy->ji.wZpos = ji.wZpos;
110         }
111         if ((buttonChange = joy->ji.wButtons ^ ji.wButtons) != 0) {
112             if (ji.wButtons & buttonChange)
113                 SendMessageA(joy->hCapture, MM_JOY1BUTTONDOWN + i,
114                              (buttonChange << 8) | (ji.wButtons & buttonChange), pos);
115             if (joy->ji.wButtons & buttonChange)
116                 SendMessageA(joy->hCapture, MM_JOY1BUTTONUP + i,
117                              (buttonChange << 8) | (joy->ji.wButtons & buttonChange), pos);
118             joy->ji.wButtons = ji.wButtons;
119         }
120     }
121 }
122
123 /**************************************************************************
124  *                              joyGetNumDevs           [WINMM.@]
125  */
126 UINT WINAPI joyGetNumDevs(void)
127 {
128     UINT        ret = 0;
129     int         i;
130
131     for (i = 0; i < MAXJOYSTICK; i++) {
132         if (JOY_LoadDriver(i)) {
133             ret += SendDriverMessage(JOY_Sticks[i].hDriver, JDD_GETNUMDEVS, 0L, 0L);
134         }
135     }
136     return ret;
137 }
138
139 /**************************************************************************
140  *                              joyGetDevCapsW          [WINMM.@]
141  */
142 MMRESULT WINAPI joyGetDevCapsW(UINT_PTR wID, LPJOYCAPSW lpCaps, UINT wSize)
143 {
144     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
145     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
146
147     lpCaps->wPeriodMin = JOY_PERIOD_MIN; /* FIXME */
148     lpCaps->wPeriodMax = JOY_PERIOD_MAX; /* FIXME (same as MS Joystick Driver) */
149
150     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETDEVCAPS, (DWORD)lpCaps, wSize);
151 }
152
153 /**************************************************************************
154  *                              joyGetDevCapsA          [WINMM.@]
155  */
156 MMRESULT WINAPI joyGetDevCapsA(UINT_PTR wID, LPJOYCAPSA lpCaps, UINT wSize)
157 {
158     JOYCAPSW    jcw;
159     MMRESULT    ret;
160
161     if (lpCaps == NULL) return MMSYSERR_INVALPARAM;
162
163     ret = joyGetDevCapsW(wID, &jcw, sizeof(jcw));
164
165     if (ret == JOYERR_NOERROR)
166     {
167         lpCaps->wMid = jcw.wMid;
168         lpCaps->wPid = jcw.wPid;
169         WideCharToMultiByte( CP_ACP, 0, jcw.szPname, -1, lpCaps->szPname,
170                              sizeof(lpCaps->szPname), NULL, NULL );
171         lpCaps->wXmin = jcw.wXmin;
172         lpCaps->wXmax = jcw.wXmax;
173         lpCaps->wYmin = jcw.wYmin;
174         lpCaps->wYmax = jcw.wYmax;
175         lpCaps->wZmin = jcw.wZmin;
176         lpCaps->wZmax = jcw.wZmax;
177         lpCaps->wNumButtons = jcw.wNumButtons;
178         lpCaps->wPeriodMin = jcw.wPeriodMin;
179         lpCaps->wPeriodMax = jcw.wPeriodMax;
180
181         if (wSize >= sizeof(JOYCAPSA)) { /* Win95 extensions ? */
182             lpCaps->wRmin = jcw.wRmin;
183             lpCaps->wRmax = jcw.wRmax;
184             lpCaps->wUmin = jcw.wUmin;
185             lpCaps->wUmax = jcw.wUmax;
186             lpCaps->wVmin = jcw.wVmin;
187             lpCaps->wVmax = jcw.wVmax;
188             lpCaps->wCaps = jcw.wCaps;
189             lpCaps->wMaxAxes = jcw.wMaxAxes;
190             lpCaps->wNumAxes = jcw.wNumAxes;
191             lpCaps->wMaxButtons = jcw.wMaxButtons;
192             WideCharToMultiByte( CP_ACP, 0, jcw.szRegKey, -1, lpCaps->szRegKey,
193                                  sizeof(lpCaps->szRegKey), NULL, NULL );
194             WideCharToMultiByte( CP_ACP, 0, jcw.szOEMVxD, -1, lpCaps->szOEMVxD,
195                                  sizeof(lpCaps->szOEMVxD), NULL, NULL );
196         }
197     }
198
199     return ret;
200 }
201
202 /**************************************************************************
203  *                              joyGetPosEx             [WINMM.@]
204  */
205 MMRESULT WINAPI joyGetPosEx(UINT wID, LPJOYINFOEX lpInfo)
206 {
207     TRACE("(%d, %p);\n", wID, lpInfo);
208
209     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
210     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
211
212     lpInfo->dwXpos = 0;
213     lpInfo->dwYpos = 0;
214     lpInfo->dwZpos = 0;
215     lpInfo->dwRpos = 0;
216     lpInfo->dwUpos = 0;
217     lpInfo->dwVpos = 0;
218     lpInfo->dwButtons = 0;
219     lpInfo->dwButtonNumber = 0;
220     lpInfo->dwPOV = 0;
221     lpInfo->dwReserved1 = 0;
222     lpInfo->dwReserved2 = 0;
223
224     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETPOSEX, (DWORD)lpInfo, 0L);
225 }
226
227 /**************************************************************************
228  *                              joyGetPos               [WINMM.@]
229  */
230 MMRESULT WINAPI joyGetPos(UINT wID, LPJOYINFO lpInfo)
231 {
232     TRACE("(%d, %p);\n", wID, lpInfo);
233
234     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
235     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
236
237     lpInfo->wXpos = 0;
238     lpInfo->wYpos = 0;
239     lpInfo->wZpos = 0;
240     lpInfo->wButtons = 0;
241
242     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETPOS, (DWORD)lpInfo, 0L);
243 }
244
245 /**************************************************************************
246  *                              joyGetThreshold         [WINMM.@]
247  */
248 MMRESULT WINAPI joyGetThreshold(UINT wID, LPUINT lpThreshold)
249 {
250     TRACE("(%04X, %p);\n", wID, lpThreshold);
251
252     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
253
254     *lpThreshold = JOY_Sticks[wID].threshold;
255     return JOYERR_NOERROR;
256 }
257
258 /**************************************************************************
259  *                              joyReleaseCapture       [WINMM.@]
260  */
261 MMRESULT WINAPI joyReleaseCapture(UINT wID)
262 {
263     TRACE("(%04X);\n", wID);
264
265     if (wID >= MAXJOYSTICK)             return JOYERR_PARMS;
266     if (!JOY_LoadDriver(wID))           return MMSYSERR_NODRIVER;
267     if (!JOY_Sticks[wID].hCapture)      return JOYERR_NOCANDO;
268
269     KillTimer(JOY_Sticks[wID].hCapture, JOY_Sticks[wID].wTimer);
270     JOY_Sticks[wID].hCapture = 0;
271     JOY_Sticks[wID].wTimer = 0;
272
273     return JOYERR_NOERROR;
274 }
275
276 /**************************************************************************
277  *                              joySetCapture           [WINMM.@]
278  */
279 MMRESULT WINAPI joySetCapture(HWND hWnd, UINT wID, UINT wPeriod, BOOL bChanged)
280 {
281     TRACE("(%p, %04X, %d, %d);\n",  hWnd, wID, wPeriod, bChanged);
282
283     if (wID >= MAXJOYSTICK || hWnd == 0) return JOYERR_PARMS;
284     if (wPeriod<JOY_PERIOD_MIN || wPeriod>JOY_PERIOD_MAX) return JOYERR_PARMS;
285     if (!JOY_LoadDriver(wID)) return MMSYSERR_NODRIVER;
286
287     if (JOY_Sticks[wID].hCapture || !IsWindow(hWnd))
288         return JOYERR_NOCANDO; /* FIXME: what should be returned ? */
289
290     if (joyGetPos(wID, &JOY_Sticks[wID].ji) != JOYERR_NOERROR)
291         return JOYERR_UNPLUGGED;
292
293     if ((JOY_Sticks[wID].wTimer = SetTimer(hWnd, 0, wPeriod, JOY_Timer)) == 0)
294         return JOYERR_NOCANDO;
295
296     JOY_Sticks[wID].hCapture = hWnd;
297     JOY_Sticks[wID].bChanged = bChanged;
298
299     return JOYERR_NOERROR;
300 }
301
302 /**************************************************************************
303  *                              joySetThreshold         [WINMM.@]
304  */
305 MMRESULT WINAPI joySetThreshold(UINT wID, UINT wThreshold)
306 {
307     TRACE("(%04X, %d);\n", wID, wThreshold);
308
309     if (wID >= MAXJOYSTICK) return MMSYSERR_INVALPARAM;
310
311     JOY_Sticks[wID].threshold = wThreshold;
312
313     return JOYERR_NOERROR;
314 }