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 <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <fcntl.h>
  33 #ifdef HAVE_SYS_IOCTL_H
  34 #include <sys/ioctl.h>
  35 #endif
  36
  37 #include "mmsystem.h"
  38 #include "winnls.h"
  39 #include "wingdi.h"
  40 #include "winuser.h"
  41
  42 #include "winemm.h"
  43
  44 #include "wine/debug.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(winmm);
  47
  48 #define MAXJOYSTICK     (JOYSTICKID2 + 1)
  49 #define JOY_PERIOD_MIN  (10)    /* min Capture time period */
  50 #define JOY_PERIOD_MAX  (1000)  /* max Capture time period */
  51
  52 typedef struct tagWINE_JOYSTICK {
  53     JOYINFO     ji;
  54     HWND        hCapture;
  55     UINT        wTimer;
  56     DWORD       threshold;
  57     BOOL        bChanged;
  58     HDRVR       hDriver;
  59 } WINE_JOYSTICK;
  60
  61 static  WINE_JOYSTICK   JOY_Sticks[MAXJOYSTICK];
  62
  63 /**************************************************************************
  64  *                              JOY_LoadDriver          [internal]
  65  */
  66 static  BOOL JOY_LoadDriver(DWORD dwJoyID)
  67 {
  68     if (dwJoyID >= MAXJOYSTICK)
  69         return FALSE;
  70     if (JOY_Sticks[dwJoyID].hDriver)
  71         return TRUE;
  72
  73     JOY_Sticks[dwJoyID].hDriver = OpenDriverA("joystick.drv", 0, dwJoyID);
  74     return (JOY_Sticks[dwJoyID].hDriver != 0);
  75 }
  76
  77 /**************************************************************************
  78  *                              JOY_Timer               [internal]
  79  */
  80 static  void    CALLBACK        JOY_Timer(HWND hWnd, UINT wMsg, UINT wTimer, DWORD dwTime)
  81 {
  82     int                 i;
  83     WINE_JOYSTICK*      joy;
  84     JOYINFO             ji;
  85     LONG                pos;
  86     unsigned            buttonChange;
  87
  88     for (i = 0; i < MAXJOYSTICK; i++) {
  89         joy = &JOY_Sticks[i];
  90
  91         if (joy->hCapture != hWnd) continue;
  92
  93         joyGetPos(i, &ji);
  94         pos = MAKELONG(ji.wXpos, ji.wYpos);
  95
  96         if (!joy->bChanged ||
  97             abs(joy->ji.wXpos - ji.wXpos) > joy->threshold ||
  98             abs(joy->ji.wYpos - ji.wYpos) > joy->threshold) {
  99             SendMessageA(joy->hCapture, MM_JOY1MOVE + i, ji.wButtons, pos);
 100             joy->ji.wXpos = ji.wXpos;
 101             joy->ji.wYpos = ji.wYpos;
 102         }
 103         if (!joy->bChanged ||
 104             abs(joy->ji.wZpos - ji.wZpos) > joy->threshold) {
 105             SendMessageA(joy->hCapture, MM_JOY1ZMOVE + i, ji.wButtons, pos);
 106             joy->ji.wZpos = ji.wZpos;
 107         }
 108         if ((buttonChange = joy->ji.wButtons ^ ji.wButtons) != 0) {
 109             if (ji.wButtons & buttonChange)
 110                 SendMessageA(joy->hCapture, MM_JOY1BUTTONDOWN + i,
 111                              (buttonChange << 8) | (ji.wButtons & buttonChange), pos);
 112             if (joy->ji.wButtons & buttonChange)
 113                 SendMessageA(joy->hCapture, MM_JOY1BUTTONUP + i,
 114                              (buttonChange << 8) | (joy->ji.wButtons & buttonChange), pos);
 115             joy->ji.wButtons = ji.wButtons;
 116         }
 117     }
 118 }
 119
 120 /**************************************************************************
 121  *                              joyGetNumDevs           [WINMM.@]
 122  */
 123 UINT WINAPI joyGetNumDevs(void)
 124 {
 125     UINT        ret = 0;
 126     int         i;
 127
 128     for (i = 0; i < MAXJOYSTICK; i++) {
 129         if (JOY_LoadDriver(i)) {
 130             ret += SendDriverMessage(JOY_Sticks[i].hDriver, JDD_GETNUMDEVS, 0L, 0L);
 131         }
 132     }
 133     return ret;
 134 }
 135
 136 /**************************************************************************
 137  *                              joyGetDevCapsA          [WINMM.@]
 138  */
 139 MMRESULT WINAPI joyGetDevCapsA(UINT wID, LPJOYCAPSA lpCaps, UINT wSize)
 140 {
 141     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 142     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
 143
 144     lpCaps->wPeriodMin = JOY_PERIOD_MIN; /* FIXME */
 145     lpCaps->wPeriodMax = JOY_PERIOD_MAX; /* FIXME (same as MS Joystick Driver) */
 146
 147     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETDEVCAPS, (DWORD)lpCaps, wSize);
 148 }
 149
 150 /**************************************************************************
 151  *                              joyGetDevCapsW          [WINMM.@]
 152  */
 153 MMRESULT WINAPI joyGetDevCapsW(UINT wID, LPJOYCAPSW lpCaps, UINT wSize)
 154 {
 155     JOYCAPSA    jca;
 156     MMRESULT    ret = joyGetDevCapsA(wID, &jca, sizeof(jca));
 157
 158     if (ret != JOYERR_NOERROR) return ret;
 159     lpCaps->wMid = jca.wMid;
 160     lpCaps->wPid = jca.wPid;
 161     MultiByteToWideChar( CP_ACP, 0, jca.szPname, -1, lpCaps->szPname,
 162                          sizeof(lpCaps->szPname)/sizeof(WCHAR) );
 163     lpCaps->wXmin = jca.wXmin;
 164     lpCaps->wXmax = jca.wXmax;
 165     lpCaps->wYmin = jca.wYmin;
 166     lpCaps->wYmax = jca.wYmax;
 167     lpCaps->wZmin = jca.wZmin;
 168     lpCaps->wZmax = jca.wZmax;
 169     lpCaps->wNumButtons = jca.wNumButtons;
 170     lpCaps->wPeriodMin = jca.wPeriodMin;
 171     lpCaps->wPeriodMax = jca.wPeriodMax;
 172
 173     if (wSize >= sizeof(JOYCAPSW)) { /* Win95 extensions ? */
 174         lpCaps->wRmin = jca.wRmin;
 175         lpCaps->wRmax = jca.wRmax;
 176         lpCaps->wUmin = jca.wUmin;
 177         lpCaps->wUmax = jca.wUmax;
 178         lpCaps->wVmin = jca.wVmin;
 179         lpCaps->wVmax = jca.wVmax;
 180         lpCaps->wCaps = jca.wCaps;
 181         lpCaps->wMaxAxes = jca.wMaxAxes;
 182         lpCaps->wNumAxes = jca.wNumAxes;
 183         lpCaps->wMaxButtons = jca.wMaxButtons;
 184         MultiByteToWideChar( CP_ACP, 0, jca.szRegKey, -1, lpCaps->szRegKey,
 185                          sizeof(lpCaps->szRegKey)/sizeof(WCHAR) );
 186         MultiByteToWideChar( CP_ACP, 0, jca.szOEMVxD, -1, lpCaps->szOEMVxD,
 187                          sizeof(lpCaps->szOEMVxD)/sizeof(WCHAR) );
 188     }
 189
 190     return ret;
 191 }
 192
 193 /**************************************************************************
 194  *                              joyGetPosEx             [WINMM.@]
 195  */
 196 MMRESULT WINAPI joyGetPosEx(UINT wID, LPJOYINFOEX lpInfo)
 197 {
 198     TRACE("(%d, %p);\n", wID, lpInfo);
 199
 200     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 201     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
 202
 203     lpInfo->dwXpos = 0;
 204     lpInfo->dwYpos = 0;
 205     lpInfo->dwZpos = 0;
 206     lpInfo->dwRpos = 0;
 207     lpInfo->dwUpos = 0;
 208     lpInfo->dwVpos = 0;
 209     lpInfo->dwButtons = 0;
 210     lpInfo->dwButtonNumber = 0;
 211     lpInfo->dwPOV = 0;
 212     lpInfo->dwReserved1 = 0;
 213     lpInfo->dwReserved2 = 0;
 214
 215     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETPOSEX, (DWORD)lpInfo, 0L);
 216 }
 217
 218 /**************************************************************************
 219  *                              joyGetPos               [WINMM.@]
 220  */
 221 MMRESULT WINAPI joyGetPos(UINT wID, LPJOYINFO lpInfo)
 222 {
 223     TRACE("(%d, %p);\n", wID, lpInfo);
 224
 225     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 226     if (!JOY_LoadDriver(wID))   return MMSYSERR_NODRIVER;
 227
 228     lpInfo->wXpos = 0;
 229     lpInfo->wYpos = 0;
 230     lpInfo->wZpos = 0;
 231     lpInfo->wButtons = 0;
 232
 233     return SendDriverMessage(JOY_Sticks[wID].hDriver, JDD_GETPOS, (DWORD)lpInfo, 0L);
 234 }
 235
 236 /**************************************************************************
 237  *                              joyGetThreshold         [WINMM.@]
 238  */
 239 MMRESULT WINAPI joyGetThreshold(UINT wID, LPUINT lpThreshold)
 240 {
 241     TRACE("(%04X, %p);\n", wID, lpThreshold);
 242
 243     if (wID >= MAXJOYSTICK)     return JOYERR_PARMS;
 244
 245     *lpThreshold = JOY_Sticks[wID].threshold;
 246     return JOYERR_NOERROR;
 247 }
 248
 249 /**************************************************************************
 250  *                              joyReleaseCapture       [WINMM.@]
 251  */
 252 MMRESULT WINAPI joyReleaseCapture(UINT wID)
 253 {
 254     TRACE("(%04X);\n", wID);
 255
 256     if (wID >= MAXJOYSTICK)             return JOYERR_PARMS;
 257     if (!JOY_LoadDriver(wID))           return MMSYSERR_NODRIVER;
 258     if (!JOY_Sticks[wID].hCapture)      return JOYERR_NOCANDO;
 259
 260     KillTimer(JOY_Sticks[wID].hCapture, JOY_Sticks[wID].wTimer);
 261     JOY_Sticks[wID].hCapture = 0;
 262     JOY_Sticks[wID].wTimer = 0;
 263
 264     return JOYERR_NOERROR;
 265 }
 266
 267 /**************************************************************************
 268  *                              joySetCapture           [WINMM.@]
 269  */
 270 MMRESULT WINAPI joySetCapture(HWND hWnd, UINT wID, UINT wPeriod, BOOL bChanged)
 271 {
 272     TRACE("(%p, %04X, %d, %d);\n",  hWnd, wID, wPeriod, bChanged);
 273
 274     if (wID >= MAXJOYSTICK || hWnd == 0) return JOYERR_PARMS;
 275     if (wPeriod<JOY_PERIOD_MIN || wPeriod>JOY_PERIOD_MAX) return JOYERR_PARMS;
 276     if (!JOY_LoadDriver(wID)) return MMSYSERR_NODRIVER;
 277
 278     if (JOY_Sticks[wID].hCapture || !IsWindow(hWnd))
 279         return JOYERR_NOCANDO; /* FIXME: what should be returned ? */
 280
 281     if (joyGetPos(wID, &JOY_Sticks[wID].ji) != JOYERR_NOERROR)
 282         return JOYERR_UNPLUGGED;
 283
 284     if ((JOY_Sticks[wID].wTimer = SetTimer(hWnd, 0, wPeriod, JOY_Timer)) == 0)
 285         return JOYERR_NOCANDO;
 286
 287     JOY_Sticks[wID].hCapture = hWnd;
 288     JOY_Sticks[wID].bChanged = bChanged;
 289
 290     return JOYERR_NOERROR;
 291 }
 292
 293 /**************************************************************************
 294  *                              joySetThreshold         [WINMM.@]
 295  */
 296 MMRESULT WINAPI joySetThreshold(UINT wID, UINT wThreshold)
 297 {
 298     TRACE("(%04X, %d);\n", wID, wThreshold);
 299
 300     if (wID >= MAXJOYSTICK) return MMSYSERR_INVALPARAM;
 301
 302     JOY_Sticks[wID].threshold = wThreshold;
 303
 304     return JOYERR_NOERROR;
 305 }