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 }