hhctrl.ocx: Fix a buffer allocation size.
[wine/multimedia.git] / dlls / dinput / joystick.c
blob8dd1566ccd3a3b8603419191d1ec69735cacb158
1 /* DirectInput Generic Joystick device
3 * Copyright 1998 Marcus Meissner
4 * Copyright 1998,1999 Lionel Ulmer
5 * Copyright 2000-2001 TransGaming Technologies Inc.
6 * Copyright 2009 Aric Stewart, CodeWeavers
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 * To Do:
25 * dead zone
26 * force feedback
29 #include "joystick_private.h"
30 #include "wine/debug.h"
31 #include "winreg.h"
33 WINE_DEFAULT_DEBUG_CHANNEL(dinput);
35 static inline JoystickGenericImpl *impl_from_IDirectInputDevice8A(IDirectInputDevice8A *iface)
37 return CONTAINING_RECORD(CONTAINING_RECORD(iface, IDirectInputDeviceImpl, IDirectInputDevice8A_iface), JoystickGenericImpl, base);
39 static inline JoystickGenericImpl *impl_from_IDirectInputDevice8W(IDirectInputDevice8W *iface)
41 return CONTAINING_RECORD(CONTAINING_RECORD(iface, IDirectInputDeviceImpl, IDirectInputDevice8W_iface), JoystickGenericImpl, base);
43 static inline IDirectInputDevice8A *IDirectInputDevice8A_from_impl(JoystickGenericImpl *This)
45 return &This->base.IDirectInputDevice8A_iface;
47 static inline IDirectInputDevice8W *IDirectInputDevice8W_from_impl(JoystickGenericImpl *This)
49 return &This->base.IDirectInputDevice8W_iface;
52 /******************************************************************************
53 * SetProperty : change input device properties
55 HRESULT WINAPI JoystickWGenericImpl_SetProperty(LPDIRECTINPUTDEVICE8W iface, REFGUID rguid, LPCDIPROPHEADER ph)
57 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
58 DWORD i;
60 TRACE("(%p,%s,%p)\n",This,debugstr_guid(rguid),ph);
62 if (ph == NULL) {
63 WARN("invalid parameter: ph == NULL\n");
64 return DIERR_INVALIDPARAM;
67 if (TRACE_ON(dinput))
68 _dump_DIPROPHEADER(ph);
70 if (IS_DIPROP(rguid)) {
71 switch (LOWORD(rguid)) {
72 case (DWORD_PTR)DIPROP_RANGE: {
73 LPCDIPROPRANGE pr = (LPCDIPROPRANGE)ph;
74 if (ph->dwHow == DIPH_DEVICE) {
75 TRACE("proprange(%d,%d) all\n", pr->lMin, pr->lMax);
76 for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++) {
77 This->props[i].lMin = pr->lMin;
78 This->props[i].lMax = pr->lMax;
80 } else {
81 int obj = find_property(&This->base.data_format, ph);
83 TRACE("proprange(%d,%d) obj=%d\n", pr->lMin, pr->lMax, obj);
84 if (obj >= 0) {
85 This->props[obj].lMin = pr->lMin;
86 This->props[obj].lMax = pr->lMax;
87 return DI_OK;
90 break;
92 case (DWORD_PTR)DIPROP_DEADZONE: {
93 LPCDIPROPDWORD pd = (LPCDIPROPDWORD)ph;
94 if (ph->dwHow == DIPH_DEVICE) {
95 TRACE("deadzone(%d) all\n", pd->dwData);
96 for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++)
97 This->props[i].lDeadZone = pd->dwData;
98 } else {
99 int obj = find_property(&This->base.data_format, ph);
101 TRACE("deadzone(%d) obj=%d\n", pd->dwData, obj);
102 if (obj >= 0) {
103 This->props[obj].lDeadZone = pd->dwData;
104 return DI_OK;
107 break;
109 case (DWORD_PTR)DIPROP_SATURATION: {
110 LPCDIPROPDWORD pd = (LPCDIPROPDWORD)ph;
111 if (ph->dwHow == DIPH_DEVICE) {
112 TRACE("saturation(%d) all\n", pd->dwData);
113 for (i = 0; i < This->base.data_format.wine_df->dwNumObjs; i++)
114 This->props[i].lSaturation = pd->dwData;
115 } else {
116 int obj = find_property(&This->base.data_format, ph);
118 TRACE("saturation(%d) obj=%d\n", pd->dwData, obj);
119 if (obj >= 0) {
120 This->props[obj].lSaturation = pd->dwData;
121 return DI_OK;
124 break;
126 default:
127 return IDirectInputDevice2WImpl_SetProperty(iface, rguid, ph);
131 return DI_OK;
134 HRESULT WINAPI JoystickAGenericImpl_SetProperty(LPDIRECTINPUTDEVICE8A iface, REFGUID rguid, LPCDIPROPHEADER ph)
136 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
137 return JoystickWGenericImpl_SetProperty(IDirectInputDevice8W_from_impl(This), rguid, ph);
140 void _dump_DIDEVCAPS(const DIDEVCAPS *lpDIDevCaps)
142 TRACE("dwSize: %d\n", lpDIDevCaps->dwSize);
143 TRACE("dwFlags: %08x\n", lpDIDevCaps->dwFlags);
144 TRACE("dwDevType: %08x %s\n", lpDIDevCaps->dwDevType,
145 lpDIDevCaps->dwDevType == DIDEVTYPE_DEVICE ? "DIDEVTYPE_DEVICE" :
146 lpDIDevCaps->dwDevType == DIDEVTYPE_DEVICE ? "DIDEVTYPE_DEVICE" :
147 lpDIDevCaps->dwDevType == DIDEVTYPE_MOUSE ? "DIDEVTYPE_MOUSE" :
148 lpDIDevCaps->dwDevType == DIDEVTYPE_KEYBOARD ? "DIDEVTYPE_KEYBOARD" :
149 lpDIDevCaps->dwDevType == DIDEVTYPE_JOYSTICK ? "DIDEVTYPE_JOYSTICK" :
150 lpDIDevCaps->dwDevType == DIDEVTYPE_HID ? "DIDEVTYPE_HID" : "UNKNOWN");
151 TRACE("dwAxes: %d\n", lpDIDevCaps->dwAxes);
152 TRACE("dwButtons: %d\n", lpDIDevCaps->dwButtons);
153 TRACE("dwPOVs: %d\n", lpDIDevCaps->dwPOVs);
154 if (lpDIDevCaps->dwSize > sizeof(DIDEVCAPS_DX3)) {
155 TRACE("dwFFSamplePeriod: %d\n", lpDIDevCaps->dwFFSamplePeriod);
156 TRACE("dwFFMinTimeResolution: %d\n", lpDIDevCaps->dwFFMinTimeResolution);
157 TRACE("dwFirmwareRevision: %d\n", lpDIDevCaps->dwFirmwareRevision);
158 TRACE("dwHardwareRevision: %d\n", lpDIDevCaps->dwHardwareRevision);
159 TRACE("dwFFDriverVersion: %d\n", lpDIDevCaps->dwFFDriverVersion);
163 HRESULT WINAPI JoystickWGenericImpl_GetCapabilities(LPDIRECTINPUTDEVICE8W iface, LPDIDEVCAPS lpDIDevCaps)
165 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
166 int size;
168 TRACE("%p->(%p)\n",iface,lpDIDevCaps);
170 if (lpDIDevCaps == NULL) {
171 WARN("invalid pointer\n");
172 return E_POINTER;
175 size = lpDIDevCaps->dwSize;
177 if (!(size == sizeof(DIDEVCAPS) || size == sizeof(DIDEVCAPS_DX3))) {
178 WARN("invalid parameter\n");
179 return DIERR_INVALIDPARAM;
182 CopyMemory(lpDIDevCaps, &This->devcaps, size);
183 lpDIDevCaps->dwSize = size;
185 if (TRACE_ON(dinput))
186 _dump_DIDEVCAPS(lpDIDevCaps);
188 return DI_OK;
191 HRESULT WINAPI JoystickAGenericImpl_GetCapabilities(LPDIRECTINPUTDEVICE8A iface, LPDIDEVCAPS lpDIDevCaps)
193 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
194 return JoystickWGenericImpl_GetCapabilities(IDirectInputDevice8W_from_impl(This), lpDIDevCaps);
197 /******************************************************************************
198 * GetObjectInfo : get object info
200 HRESULT WINAPI JoystickWGenericImpl_GetObjectInfo(LPDIRECTINPUTDEVICE8W iface,
201 LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow)
203 static const WCHAR axisW[] = {'A','x','i','s',' ','%','d',0};
204 static const WCHAR povW[] = {'P','O','V',' ','%','d',0};
205 static const WCHAR buttonW[] = {'B','u','t','t','o','n',' ','%','d',0};
206 HRESULT res;
208 res = IDirectInputDevice2WImpl_GetObjectInfo(iface, pdidoi, dwObj, dwHow);
209 if (res != DI_OK) return res;
211 if (pdidoi->dwType & DIDFT_AXIS)
212 sprintfW(pdidoi->tszName, axisW, DIDFT_GETINSTANCE(pdidoi->dwType));
213 else if (pdidoi->dwType & DIDFT_POV)
214 sprintfW(pdidoi->tszName, povW, DIDFT_GETINSTANCE(pdidoi->dwType));
215 else if (pdidoi->dwType & DIDFT_BUTTON)
216 sprintfW(pdidoi->tszName, buttonW, DIDFT_GETINSTANCE(pdidoi->dwType));
218 _dump_OBJECTINSTANCEW(pdidoi);
219 return res;
222 HRESULT WINAPI JoystickAGenericImpl_GetObjectInfo(LPDIRECTINPUTDEVICE8A iface,
223 LPDIDEVICEOBJECTINSTANCEA pdidoi, DWORD dwObj, DWORD dwHow)
225 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
226 HRESULT res;
227 DIDEVICEOBJECTINSTANCEW didoiW;
228 DWORD dwSize = pdidoi->dwSize;
230 didoiW.dwSize = sizeof(didoiW);
231 res = JoystickWGenericImpl_GetObjectInfo(IDirectInputDevice8W_from_impl(This), &didoiW, dwObj, dwHow);
232 if (res != DI_OK) return res;
234 memset(pdidoi, 0, pdidoi->dwSize);
235 memcpy(pdidoi, &didoiW, FIELD_OFFSET(DIDEVICEOBJECTINSTANCEW, tszName));
236 pdidoi->dwSize = dwSize;
237 WideCharToMultiByte(CP_ACP, 0, didoiW.tszName, -1, pdidoi->tszName,
238 sizeof(pdidoi->tszName), NULL, NULL);
240 return res;
243 /******************************************************************************
244 * GetProperty : get input device properties
246 HRESULT WINAPI JoystickWGenericImpl_GetProperty(LPDIRECTINPUTDEVICE8W iface, REFGUID rguid, LPDIPROPHEADER pdiph)
248 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
250 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(rguid), pdiph);
252 if (TRACE_ON(dinput))
253 _dump_DIPROPHEADER(pdiph);
255 if (IS_DIPROP(rguid)) {
256 switch (LOWORD(rguid)) {
257 case (DWORD_PTR) DIPROP_RANGE: {
258 LPDIPROPRANGE pr = (LPDIPROPRANGE)pdiph;
259 int obj = find_property(&This->base.data_format, pdiph);
261 /* The app is querying the current range of the axis
262 * return the lMin and lMax values */
263 if (obj >= 0) {
264 pr->lMin = This->props[obj].lMin;
265 pr->lMax = This->props[obj].lMax;
266 TRACE("range(%d, %d) obj=%d\n", pr->lMin, pr->lMax, obj);
267 return DI_OK;
269 break;
271 case (DWORD_PTR) DIPROP_DEADZONE: {
272 LPDIPROPDWORD pd = (LPDIPROPDWORD)pdiph;
273 int obj = find_property(&This->base.data_format, pdiph);
275 if (obj >= 0) {
276 pd->dwData = This->props[obj].lDeadZone;
277 TRACE("deadzone(%d) obj=%d\n", pd->dwData, obj);
278 return DI_OK;
280 break;
282 case (DWORD_PTR) DIPROP_SATURATION: {
283 LPDIPROPDWORD pd = (LPDIPROPDWORD)pdiph;
284 int obj = find_property(&This->base.data_format, pdiph);
286 if (obj >= 0) {
287 pd->dwData = This->props[obj].lSaturation;
288 TRACE("saturation(%d) obj=%d\n", pd->dwData, obj);
289 return DI_OK;
291 break;
293 default:
294 return IDirectInputDevice2WImpl_GetProperty(iface, rguid, pdiph);
298 return DI_OK;
301 HRESULT WINAPI JoystickAGenericImpl_GetProperty(LPDIRECTINPUTDEVICE8A iface, REFGUID rguid, LPDIPROPHEADER pdiph)
303 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
304 return JoystickWGenericImpl_GetProperty(IDirectInputDevice8W_from_impl(This), rguid, pdiph);
307 /******************************************************************************
308 * GetDeviceInfo : get information about a device's identity
310 HRESULT WINAPI JoystickAGenericImpl_GetDeviceInfo(
311 LPDIRECTINPUTDEVICE8A iface,
312 LPDIDEVICEINSTANCEA pdidi)
314 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
316 TRACE("(%p,%p)\n", iface, pdidi);
318 if (pdidi == NULL) {
319 WARN("invalid pointer\n");
320 return E_POINTER;
323 if ((pdidi->dwSize != sizeof(DIDEVICEINSTANCE_DX3A)) &&
324 (pdidi->dwSize != sizeof(DIDEVICEINSTANCEA))) {
325 WARN("invalid parameter: pdidi->dwSize = %d\n", pdidi->dwSize);
326 return DIERR_INVALIDPARAM;
329 /* Return joystick */
330 pdidi->guidInstance = This->guidInstance;
331 pdidi->guidProduct = This->guidProduct;
332 /* we only support traditional joysticks for now */
333 pdidi->dwDevType = This->devcaps.dwDevType;
334 strcpy(pdidi->tszInstanceName, "Joystick");
335 strcpy(pdidi->tszProductName, This->name);
336 if (pdidi->dwSize > sizeof(DIDEVICEINSTANCE_DX3A)) {
337 pdidi->guidFFDriver = GUID_NULL;
338 pdidi->wUsagePage = 0;
339 pdidi->wUsage = 0;
342 return DI_OK;
345 /******************************************************************************
346 * GetDeviceInfo : get information about a device's identity
348 HRESULT WINAPI JoystickWGenericImpl_GetDeviceInfo(
349 LPDIRECTINPUTDEVICE8W iface,
350 LPDIDEVICEINSTANCEW pdidi)
352 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
354 TRACE("(%p,%p)\n", iface, pdidi);
356 if ((pdidi->dwSize != sizeof(DIDEVICEINSTANCE_DX3W)) &&
357 (pdidi->dwSize != sizeof(DIDEVICEINSTANCEW))) {
358 WARN("invalid parameter: pdidi->dwSize = %d\n", pdidi->dwSize);
359 return DIERR_INVALIDPARAM;
362 /* Return joystick */
363 pdidi->guidInstance = This->guidInstance;
364 pdidi->guidProduct = This->guidProduct;
365 /* we only support traditional joysticks for now */
366 pdidi->dwDevType = This->devcaps.dwDevType;
367 MultiByteToWideChar(CP_ACP, 0, "Joystick", -1, pdidi->tszInstanceName, MAX_PATH);
368 MultiByteToWideChar(CP_ACP, 0, This->name, -1, pdidi->tszProductName, MAX_PATH);
369 if (pdidi->dwSize > sizeof(DIDEVICEINSTANCE_DX3W)) {
370 pdidi->guidFFDriver = GUID_NULL;
371 pdidi->wUsagePage = 0;
372 pdidi->wUsage = 0;
375 return DI_OK;
378 HRESULT WINAPI JoystickWGenericImpl_Poll(LPDIRECTINPUTDEVICE8W iface)
380 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
382 TRACE("(%p)\n",This);
384 if (!This->base.acquired) {
385 WARN("not acquired\n");
386 return DIERR_NOTACQUIRED;
389 This->joy_polldev(IDirectInputDevice8A_from_impl(This));
390 return DI_OK;
393 HRESULT WINAPI JoystickAGenericImpl_Poll(LPDIRECTINPUTDEVICE8A iface)
395 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
396 return JoystickWGenericImpl_Poll(IDirectInputDevice8W_from_impl(This));
399 /******************************************************************************
400 * GetDeviceState : returns the "state" of the joystick.
403 HRESULT WINAPI JoystickWGenericImpl_GetDeviceState(LPDIRECTINPUTDEVICE8W iface, DWORD len, LPVOID ptr)
405 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
407 TRACE("(%p,0x%08x,%p)\n", This, len, ptr);
409 if (!This->base.acquired) {
410 WARN("not acquired\n");
411 return DIERR_NOTACQUIRED;
414 /* update joystick state */
415 This->joy_polldev(IDirectInputDevice8A_from_impl(This));
417 /* convert and copy data to user supplied buffer */
418 fill_DataFormat(ptr, len, &This->js, &This->base.data_format);
420 return DI_OK;
423 HRESULT WINAPI JoystickAGenericImpl_GetDeviceState(LPDIRECTINPUTDEVICE8A iface, DWORD len, LPVOID ptr)
425 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
426 return JoystickWGenericImpl_GetDeviceState(IDirectInputDevice8W_from_impl(This), len, ptr);
430 HRESULT WINAPI JoystickWGenericImpl_BuildActionMap(LPDIRECTINPUTDEVICE8W iface,
431 LPDIACTIONFORMATW lpdiaf,
432 LPCWSTR lpszUserName,
433 DWORD dwFlags)
435 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
436 int i, j, has_actions = 0;
437 DWORD object_types[] = { DIDFT_AXIS, DIDFT_BUTTON };
438 DWORD type_map[] = { DIDFT_RELAXIS, DIDFT_PSHBUTTON };
440 FIXME("(%p)->(%p,%s,%08x): semi-stub !\n", iface, lpdiaf, debugstr_w(lpszUserName), dwFlags);
442 for (i=0; i < lpdiaf->dwNumActions; i++)
444 DWORD inst = (0x000000ff & (lpdiaf->rgoAction[i].dwSemantic)) - 1;
445 DWORD type = 0x000000ff & (lpdiaf->rgoAction[i].dwSemantic >> 8);
446 DWORD genre = 0xff000000 & lpdiaf->rgoAction[i].dwSemantic;
448 /* Don't touch an user configured action */
449 if (lpdiaf->rgoAction[i].dwHow == DIAH_USERCONFIG) continue;
451 /* Only consider actions of the right genre */
452 if (lpdiaf->dwGenre != genre && genre != DIGENRE_ANY) continue;
454 for (j=0; j < sizeof(object_types)/sizeof(object_types[0]); j++)
456 if (type & object_types[j])
458 /* Assure that the object exists */
459 LPDIOBJECTDATAFORMAT odf = dataformat_to_odf_by_type(This->base.data_format.wine_df, inst, DIDFT_BUTTON);
461 if (odf != NULL)
463 lpdiaf->rgoAction[i].dwObjID = type_map[j] | (0x0000ff00 & (inst << 8));
464 lpdiaf->rgoAction[i].guidInstance = This->base.guid;
465 lpdiaf->rgoAction[i].dwHow = DIAH_DEFAULT;
467 has_actions = 1;
469 /* No need to try other types if the action was already mapped */
470 break;
476 if (!has_actions) return DI_NOEFFECT;
478 return IDirectInputDevice8WImpl_BuildActionMap(iface, lpdiaf, lpszUserName, dwFlags);
481 HRESULT WINAPI JoystickAGenericImpl_BuildActionMap(LPDIRECTINPUTDEVICE8A iface,
482 LPDIACTIONFORMATA lpdiaf,
483 LPCSTR lpszUserName,
484 DWORD dwFlags)
486 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
487 DIACTIONFORMATW diafW;
488 HRESULT hr;
489 WCHAR *lpszUserNameW = NULL;
490 int username_size;
492 diafW.rgoAction = HeapAlloc(GetProcessHeap(), 0, sizeof(DIACTIONW)*lpdiaf->dwNumActions);
493 _copy_diactionformatAtoW(&diafW, lpdiaf);
495 if (lpszUserName != NULL)
497 username_size = MultiByteToWideChar(CP_ACP, 0, lpszUserName, -1, NULL, 0);
498 lpszUserNameW = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*username_size);
499 MultiByteToWideChar(CP_ACP, 0, lpszUserName, -1, lpszUserNameW, username_size);
502 hr = JoystickWGenericImpl_BuildActionMap(&This->base.IDirectInputDevice8W_iface, &diafW, lpszUserNameW, dwFlags);
504 _copy_diactionformatWtoA(lpdiaf, &diafW);
505 HeapFree(GetProcessHeap(), 0, diafW.rgoAction);
506 HeapFree(GetProcessHeap(), 0, lpszUserNameW);
508 return hr;
511 HRESULT WINAPI JoystickWGenericImpl_SetActionMap(LPDIRECTINPUTDEVICE8W iface,
512 LPDIACTIONFORMATW lpdiaf,
513 LPCWSTR lpszUserName,
514 DWORD dwFlags)
516 JoystickGenericImpl *This = impl_from_IDirectInputDevice8W(iface);
518 FIXME("(%p)->(%p,%s,%08x): semi-stub !\n", iface, lpdiaf, debugstr_w(lpszUserName), dwFlags);
520 return _set_action_map(iface, lpdiaf, lpszUserName, dwFlags, This->base.data_format.wine_df);
523 HRESULT WINAPI JoystickAGenericImpl_SetActionMap(LPDIRECTINPUTDEVICE8A iface,
524 LPDIACTIONFORMATA lpdiaf,
525 LPCSTR lpszUserName,
526 DWORD dwFlags)
528 JoystickGenericImpl *This = impl_from_IDirectInputDevice8A(iface);
529 DIACTIONFORMATW diafW;
530 HRESULT hr;
531 WCHAR *lpszUserNameW = NULL;
532 int username_size;
534 diafW.rgoAction = HeapAlloc(GetProcessHeap(), 0, sizeof(DIACTIONW)*lpdiaf->dwNumActions);
535 _copy_diactionformatAtoW(&diafW, lpdiaf);
537 if (lpszUserName != NULL)
539 username_size = MultiByteToWideChar(CP_ACP, 0, lpszUserName, -1, NULL, 0);
540 lpszUserNameW = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*username_size);
541 MultiByteToWideChar(CP_ACP, 0, lpszUserName, -1, lpszUserNameW, username_size);
544 hr = JoystickWGenericImpl_SetActionMap(&This->base.IDirectInputDevice8W_iface, &diafW, lpszUserNameW, dwFlags);
546 HeapFree(GetProcessHeap(), 0, diafW.rgoAction);
547 HeapFree(GetProcessHeap(), 0, lpszUserNameW);
549 return hr;
553 * This maps the read value (from the input event) to a value in the
554 * 'wanted' range.
555 * Notes:
556 * Dead zone is in % multiplied by a 100 (range 0..10000)
558 LONG joystick_map_axis(ObjProps *props, int val)
560 LONG ret;
561 LONG dead_zone = MulDiv( props->lDeadZone, props->lDevMax - props->lDevMin, 10000 );
562 LONG dev_range = props->lDevMax - props->lDevMin - dead_zone;
564 /* Center input */
565 val -= (props->lDevMin + props->lDevMax) / 2;
567 /* Remove dead zone */
568 if (abs( val ) <= dead_zone / 2)
569 val = 0;
570 else
571 val = val < 0 ? val + dead_zone / 2 : val - dead_zone / 2;
573 /* Scale and map the value from the device range into the required range */
574 ret = MulDiv( val, props->lMax - props->lMin, dev_range ) +
575 (props->lMin + props->lMax) / 2;
577 /* Clamp in case or rounding errors */
578 if (ret > props->lMax) ret = props->lMax;
579 else if (ret < props->lMin) ret = props->lMin;
581 TRACE( "(%d <%d> %d) -> (%d <%d> %d): val=%d ret=%d\n",
582 props->lDevMin, dead_zone, props->lDevMax,
583 props->lMin, props->lDeadZone, props->lMax,
584 val, ret );
586 return ret;
590 * Maps POV x & y event values to a DX "clock" position:
592 * 31500 4500
593 * 27000 -1 9000
594 * 22500 13500
595 * 18000
597 DWORD joystick_map_pov(const POINTL *p)
599 if (p->x > 0)
600 return p->y < 0 ? 4500 : !p->y ? 9000 : 13500;
601 else if (p->x < 0)
602 return p->y < 0 ? 31500 : !p->y ? 27000 : 22500;
603 else
604 return p->y < 0 ? 0 : !p->y ? -1 : 18000;
608 * Setup the dinput options.
611 HRESULT setup_dinput_options(JoystickGenericImpl *This, const int *default_axis_map)
613 char buffer[MAX_PATH+16];
614 HKEY hkey, appkey;
615 int tokens = 0;
616 int axis = 0;
617 int pov = 0;
619 get_app_key(&hkey, &appkey);
621 /* get options */
623 if (!get_config_key(hkey, appkey, "DefaultDeadZone", buffer, sizeof(buffer)))
625 This->deadzone = atoi(buffer);
626 TRACE("setting default deadzone to: \"%s\" %d\n", buffer, This->deadzone);
629 This->axis_map = HeapAlloc(GetProcessHeap(), 0, This->device_axis_count * sizeof(int));
630 if (!This->axis_map) return DIERR_OUTOFMEMORY;
632 if (!get_config_key(hkey, appkey, This->name, buffer, sizeof(buffer)))
634 static const char *axis_names[] = {"X", "Y", "Z", "Rx", "Ry", "Rz",
635 "Slider1", "Slider2",
636 "POV1", "POV2", "POV3", "POV4"};
637 const char *delim = ",";
638 char * ptr;
639 TRACE("\"%s\" = \"%s\"\n", This->name, buffer);
641 if ((ptr = strtok(buffer, delim)) != NULL)
645 int i;
647 for (i = 0; i < sizeof(axis_names) / sizeof(axis_names[0]); i++)
649 if (!strcmp(ptr, axis_names[i]))
651 if (!strncmp(ptr, "POV", 3))
653 if (pov >= 4)
655 WARN("Only 4 POVs supported - ignoring extra\n");
656 i = -1;
658 else
660 /* Pov takes two axes */
661 This->axis_map[tokens++] = i;
662 pov++;
665 else
667 if (axis >= 8)
669 FIXME("Only 8 Axes supported - ignoring extra\n");
670 i = -1;
672 else
673 axis++;
675 break;
679 if (i == sizeof(axis_names) / sizeof(axis_names[0]))
681 ERR("invalid joystick axis type: \"%s\"\n", ptr);
682 i = -1;
685 This->axis_map[tokens] = i;
686 tokens++;
687 } while ((ptr = strtok(NULL, delim)) != NULL);
689 if (tokens != This->device_axis_count)
691 ERR("not all joystick axes mapped: %d axes(%d,%d), %d arguments\n",
692 This->device_axis_count, axis, pov, tokens);
693 while (tokens < This->device_axis_count)
695 This->axis_map[tokens] = -1;
696 tokens++;
701 else
703 int i;
705 if (default_axis_map)
707 /* Use default mapping from the driver */
708 for (i = 0; i < This->device_axis_count; i++)
710 This->axis_map[i] = default_axis_map[i];
711 tokens = default_axis_map[i];
712 if (tokens < 0)
713 continue;
714 if (tokens < 8)
715 axis++;
716 else if (tokens < 15)
718 i++;
719 pov++;
720 This->axis_map[i] = default_axis_map[i];
724 else
726 /* No config - set default mapping. */
727 for (i = 0; i < This->device_axis_count; i++)
729 if (i < 8)
730 This->axis_map[i] = axis++;
731 else if (i < 15)
733 This->axis_map[i++] = 8 + pov;
734 This->axis_map[i ] = 8 + pov++;
736 else
737 This->axis_map[i] = -1;
741 This->devcaps.dwAxes = axis;
742 This->devcaps.dwPOVs = pov;
744 if (appkey) RegCloseKey(appkey);
745 if (hkey) RegCloseKey(hkey);
747 return DI_OK;