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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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("joystick.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 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  *                              joyGetDevCapsA          [WINMM.@]
 141  */
 142 MMRESULT WINAPI joyGetDevCapsA(UINT_PTR wID, LPJOYCAPSA 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  *                              joyGetDevCapsW          [WINMM.@]
 155  */
 156 MMRESULT WINAPI joyGetDevCapsW(UINT_PTR wID, LPJOYCAPSW lpCaps, UINT wSize)
 157 {
 158     JOYCAPSA    jca;
 159     MMRESULT    ret = joyGetDevCapsA(wID, &jca, sizeof(jca));
 160
 161     if (ret != JOYERR_NOERROR) return ret;
 162     lpCaps->wMid = jca.wMid;
 163     lpCaps->wPid = jca.wPid;
 164     MultiByteToWideChar( CP_ACP, 0, jca.szPname, -1, lpCaps->szPname,
 165                          sizeof(lpCaps->szPname)/sizeof(WCHAR) );
 166     lpCaps->wXmin = jca.wXmin;
 167     lpCaps->wXmax = jca.wXmax;
 168     lpCaps->wYmin = jca.wYmin;
 169     lpCaps->wYmax = jca.wYmax;
 170     lpCaps->wZmin = jca.wZmin;
 171     lpCaps->wZmax = jca.wZmax;
 172     lpCaps->wNumButtons = jca.wNumButtons;
 173     lpCaps->wPeriodMin = jca.wPeriodMin;
 174     lpCaps->wPeriodMax = jca.wPeriodMax;
 175
 176     if (wSize >= sizeof(JOYCAPSW)) { /* Win95 extensions ? */
 177         lpCaps->wRmin = jca.wRmin;
 178         lpCaps->wRmax = jca.wRmax;
 179         lpCaps->wUmin = jca.wUmin;
 180         lpCaps->wUmax = jca.wUmax;
 181         lpCaps->wVmin = jca.wVmin;
 182         lpCaps->wVmax = jca.wVmax;
 183         lpCaps->wCaps = jca.wCaps;
 184         lpCaps->wMaxAxes = jca.wMaxAxes;
 185         lpCaps->wNumAxes = jca.wNumAxes;
 186         lpCaps->wMaxButtons = jca.wMaxButtons;
 187         MultiByteToWideChar( CP_ACP, 0, jca.szRegKey, -1, lpCaps->szRegKey,
 188                          sizeof(lpCaps->szRegKey)/sizeof(WCHAR) );
 189         MultiByteToWideChar( CP_ACP, 0, jca.szOEMVxD, -1, lpCaps->szOEMVxD,
 190                          sizeof(lpCaps->szOEMVxD)/sizeof(WCHAR) );
 191     }
 192
 193     return ret;
 194 }
 195
 196 /**************************************************************************
 197  *                              joyGetPosEx             [WINMM.@]
 198  */
 199 MMRESULT WINAPI joyGetPosEx(UINT wID, LPJOYINFOEX lpInfo)
 200 {
 201     TRACE("(%d, %p);\n", wID, lpInfo);
 202
 203     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 204     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
 205
 206     lpInfo->dwXpos = 0;
 207     lpInfo->dwYpos = 0;
 208     lpInfo->dwZpos = 0;
 209     lpInfo->dwRpos = 0;
 210     lpInfo->dwUpos = 0;
 211     lpInfo->dwVpos = 0;
 212     lpInfo->dwButtons = 0;
 213     lpInfo->dwButtonNumber = 0;
 214     lpInfo->dwPOV = 0;
 215     lpInfo->dwReserved1 = 0;
 216     lpInfo->dwReserved2 = 0;
 217
 218     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETPOSEX, (DWORD)lpInfo, 0L);
 219 }
 220
 221 /**************************************************************************
 222  *                              joyGetPos               [WINMM.@]
 223  */
 224 MMRESULT WINAPI joyGetPos(UINT wID, LPJOYINFO lpInfo)
 225 {
 226     TRACE("(%d, %p);\n", wID, lpInfo);
 227
 228     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 229     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
 230
 231     lpInfo->wXpos = 0;
 232     lpInfo->wYpos = 0;
 233     lpInfo->wZpos = 0;
 234     lpInfo->wButtons = 0;
 235
 236     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETPOS, (DWORD)lpInfo, 0L);
 237 }
 238
 239 /**************************************************************************
 240  *                              joyGetThreshold         [WINMM.@]
 241  */
 242 MMRESULT WINAPI joyGetThreshold(UINT wID, LPUINT lpThreshold)
 243 {
 244     TRACE("(%04X, %p);\n", wID, lpThreshold);
 245
 246     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 247
 248     *lpThreshold = JOY_Sticks[wID].threshold;
 249     return JOYERR_NOERROR;
 250 }
 251
 252 /**************************************************************************
 253  *                              joyReleaseCapture       [WINMM.@]
 254  */
 255 MMRESULT WINAPI joyReleaseCapture(UINT wID)
 256 {
 257     TRACE("(%04X);\n", wID);
 258
 259     if (wID >= MAXJOYSTICK)             return JOYERR_PARMS;
 260     if (!JOY_LoadDriver(wID))           return MMSYSERR_NODRIVER;
 261     if (!JOY_Sticks[wID].hCapture)      return JOYERR_NOCANDO;
 262
 263     KillTimer(JOY_Sticks[wID].hCapture, JOY_Sticks[wID].wTimer);
 264     JOY_Sticks[wID].hCapture = 0;
 265     JOY_Sticks[wID].wTimer = 0;
 266
 267     return JOYERR_NOERROR;
 268 }
 269
 270 /**************************************************************************
 271  *                              joySetCapture           [WINMM.@]
 272  */
 273 MMRESULT WINAPI joySetCapture(HWND hWnd, UINT wID, UINT wPeriod, BOOL bChanged)
 274 {
 275     TRACE("(%p, %04X, %d, %d);\n",  hWnd, wID, wPeriod, bChanged);
 276
 277     if (wID >= MAXJOYSTICK || hWnd == 0) return JOYERR_PARMS;
 278     if (wPeriod<JOY_PERIOD_MIN || wPeriod>JOY_PERIOD_MAX) return JOYERR_PARMS;
 279     if (!JOY_LoadDriver(wID)) return MMSYSERR_NODRIVER;
 280
 281     if (JOY_Sticks[wID].hCapture || !IsWindow(hWnd))
 282         return JOYERR_NOCANDO; /* FIXME: what should be returned ? */
 283
 284     if (joyGetPos(wID, &JOY_Sticks[wID].ji) != JOYERR_NOERROR)
 285         return JOYERR_UNPLUGGED;
 286
 287     if ((JOY_Sticks[wID].wTimer = SetTimer(hWnd, 0, wPeriod, JOY_Timer)) == 0)
 288         return JOYERR_NOCANDO;
 289
 290     JOY_Sticks[wID].hCapture = hWnd;
 291     JOY_Sticks[wID].bChanged = bChanged;
 292
 293     return JOYERR_NOERROR;
 294 }
 295
 296 /**************************************************************************
 297  *                              joySetThreshold         [WINMM.@]
 298  */
 299 MMRESULT WINAPI joySetThreshold(UINT wID, UINT wThreshold)
 300 {
 301     TRACE("(%04X, %d);\n", wID, wThreshold);
 302
 303     if (wID >= MAXJOYSTICK) return MMSYSERR_INVALPARAM;
 304
 305     JOY_Sticks[wID].threshold = wThreshold;
 306
 307     return JOYERR_NOERROR;
 308 }