1 /* DirectInput Linux Event Device Effect
3 * Copyright 2005 Daniel Remenak
5 * Thanks to Google's Summer of Code Program (2005)
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 #ifdef HAVE_STRUCT_FF_EFFECT_DIRECTION
28 #ifdef HAVE_LINUX_INPUT_H
29 # include <linux/input.h>
38 #include "wine/debug.h"
39 #include "wine/unicode.h"
45 #include "device_private.h"
47 WINE_DEFAULT_DEBUG_CHANNEL(dinput);
49 static const IDirectInputEffectVtbl LinuxInputEffectVtbl;
50 typedef struct LinuxInputEffectImpl LinuxInputEffectImpl;
51 struct LinuxInputEffectImpl
53 IDirectInputEffect IDirectInputEffect_iface;
57 struct ff_effect effect; /* Effect data */
58 int gain; /* Effect gain */
60 int* fd; /* Parent device */
61 struct list *entry; /* Entry into the parent's list of effects */
64 static inline LinuxInputEffectImpl *impl_from_IDirectInputEffect(IDirectInputEffect *iface)
66 return CONTAINING_RECORD(iface, LinuxInputEffectImpl, IDirectInputEffect_iface);
69 /******************************************************************************
70 * DirectInputEffect Functional Helper
73 static DWORD _typeFromGUID(REFGUID guid)
75 if (IsEqualGUID(guid, &GUID_ConstantForce)) {
76 return DIEFT_CONSTANTFORCE;
77 } else if (IsEqualGUID(guid, &GUID_Square)
78 || IsEqualGUID(guid, &GUID_Sine)
79 || IsEqualGUID(guid, &GUID_Triangle)
80 || IsEqualGUID(guid, &GUID_SawtoothUp)
81 || IsEqualGUID(guid, &GUID_SawtoothDown)) {
82 return DIEFT_PERIODIC;
83 } else if (IsEqualGUID(guid, &GUID_RampForce)) {
84 return DIEFT_RAMPFORCE;
85 } else if (IsEqualGUID(guid, &GUID_Spring)
86 || IsEqualGUID(guid, &GUID_Damper)
87 || IsEqualGUID(guid, &GUID_Inertia)
88 || IsEqualGUID(guid, &GUID_Friction)) {
89 return DIEFT_CONDITION;
90 } else if (IsEqualGUID(guid, &GUID_CustomForce)) {
91 return DIEFT_CUSTOMFORCE;
93 WARN("GUID (%s) is not a known force type\n", _dump_dinput_GUID(guid));
99 /******************************************************************************
100 * DirectInputEffect debug helpers
103 static void _dump_DIEFFECT_flags(DWORD dwFlags)
105 if (TRACE_ON(dinput)) {
107 static const struct {
111 #define FE(x) { x, #x}
114 FE(DIEFF_OBJECTOFFSETS),
119 for (i = 0; i < (sizeof(flags) / sizeof(flags[0])); i++)
120 if (flags[i].mask & dwFlags)
121 TRACE("%s ", flags[i].name);
126 static void _dump_DIENVELOPE(LPCDIENVELOPE env)
128 if (env->dwSize != sizeof(DIENVELOPE)) {
129 WARN("Non-standard DIENVELOPE structure size %d.\n", env->dwSize);
131 TRACE("Envelope has attack (level: %d time: %d), fade (level: %d time: %d)\n",
132 env->dwAttackLevel, env->dwAttackTime, env->dwFadeLevel, env->dwFadeTime);
135 static void _dump_DICONSTANTFORCE(LPCDICONSTANTFORCE frc)
137 TRACE("Constant force has magnitude %d\n", frc->lMagnitude);
140 static void _dump_DIPERIODIC(LPCDIPERIODIC frc)
142 TRACE("Periodic force has magnitude %d, offset %d, phase %d, period %d\n",
143 frc->dwMagnitude, frc->lOffset, frc->dwPhase, frc->dwPeriod);
146 static void _dump_DIRAMPFORCE(LPCDIRAMPFORCE frc)
148 TRACE("Ramp force has start %d, end %d\n",
149 frc->lStart, frc->lEnd);
152 static void _dump_DICONDITION(LPCDICONDITION frc)
154 TRACE("Condition has offset %d, pos/neg coefficients %d and %d, pos/neg saturations %d and %d, deadband %d\n",
155 frc->lOffset, frc->lPositiveCoefficient, frc->lNegativeCoefficient,
156 frc->dwPositiveSaturation, frc->dwNegativeSaturation, frc->lDeadBand);
159 static void _dump_DICUSTOMFORCE(LPCDICUSTOMFORCE frc)
162 TRACE("Custom force uses %d channels, sample period %d. Has %d samples at %p.\n",
163 frc->cChannels, frc->dwSamplePeriod, frc->cSamples, frc->rglForceData);
164 if (frc->cSamples % frc->cChannels != 0)
165 WARN("Custom force has a non-integral samples-per-channel count!\n");
166 if (TRACE_ON(dinput)) {
167 TRACE("Custom force data (time aligned, axes in order):\n");
168 for (i = 1; i <= frc->cSamples; ++i) {
169 TRACE("%d ", frc->rglForceData[i]);
170 if (i % frc->cChannels == 0)
176 static void _dump_DIEFFECT(LPCDIEFFECT eff, REFGUID guid, DWORD dwFlags)
179 DWORD type = _typeFromGUID(guid);
181 TRACE("Dumping DIEFFECT structure:\n");
182 TRACE(" - dwSize: %d\n", eff->dwSize);
183 if ((eff->dwSize != sizeof(DIEFFECT)) && (eff->dwSize != sizeof(DIEFFECT_DX5))) {
184 WARN("Non-standard DIEFFECT structure size %d\n", eff->dwSize);
186 TRACE(" - dwFlags: %d\n", eff->dwFlags);
188 _dump_DIEFFECT_flags(eff->dwFlags);
189 TRACE(" - dwDuration: %d\n", eff->dwDuration);
190 TRACE(" - dwGain: %d\n", eff->dwGain);
192 if (eff->dwGain > 10000)
193 WARN("dwGain is out of range (>10,000)\n");
195 TRACE(" - dwTriggerButton: %d\n", eff->dwTriggerButton);
196 TRACE(" - dwTriggerRepeatInterval: %d\n", eff->dwTriggerRepeatInterval);
197 TRACE(" - rglDirection: %p\n", eff->rglDirection);
198 TRACE(" - cbTypeSpecificParams: %d\n", eff->cbTypeSpecificParams);
199 TRACE(" - lpvTypeSpecificParams: %p\n", eff->lpvTypeSpecificParams);
201 /* Only trace some members if dwFlags indicates they have data */
202 if (dwFlags & DIEP_AXES) {
203 TRACE(" - cAxes: %d\n", eff->cAxes);
204 TRACE(" - rgdwAxes: %p\n", eff->rgdwAxes);
206 if (TRACE_ON(dinput) && eff->rgdwAxes) {
208 for (i = 0; i < eff->cAxes; ++i)
209 TRACE("%d ", eff->rgdwAxes[i]);
214 if (dwFlags & DIEP_ENVELOPE) {
215 TRACE(" - lpEnvelope: %p\n", eff->lpEnvelope);
216 if (eff->lpEnvelope != NULL)
217 _dump_DIENVELOPE(eff->lpEnvelope);
220 if (eff->dwSize > sizeof(DIEFFECT_DX5))
221 TRACE(" - dwStartDelay: %d\n", eff->dwStartDelay);
223 if (type == DIEFT_CONSTANTFORCE) {
224 if (eff->cbTypeSpecificParams != sizeof(DICONSTANTFORCE)) {
225 WARN("Effect claims to be a constant force but the type-specific params are the wrong size!\n");
227 _dump_DICONSTANTFORCE(eff->lpvTypeSpecificParams);
229 } else if (type == DIEFT_PERIODIC) {
230 if (eff->cbTypeSpecificParams != sizeof(DIPERIODIC)) {
231 WARN("Effect claims to be a periodic force but the type-specific params are the wrong size!\n");
233 _dump_DIPERIODIC(eff->lpvTypeSpecificParams);
235 } else if (type == DIEFT_RAMPFORCE) {
236 if (eff->cbTypeSpecificParams != sizeof(DIRAMPFORCE)) {
237 WARN("Effect claims to be a ramp force but the type-specific params are the wrong size!\n");
239 _dump_DIRAMPFORCE(eff->lpvTypeSpecificParams);
241 } else if (type == DIEFT_CONDITION) {
242 if (eff->cbTypeSpecificParams != sizeof(DICONDITION)) {
243 WARN("Effect claims to be a condition but the type-specific params are the wrong size!\n");
245 _dump_DICONDITION(eff->lpvTypeSpecificParams);
247 } else if (type == DIEFT_CUSTOMFORCE) {
248 if (eff->cbTypeSpecificParams != sizeof(DICUSTOMFORCE)) {
249 WARN("Effect claims to be a custom force but the type-specific params are the wrong size!\n");
251 _dump_DICUSTOMFORCE(eff->lpvTypeSpecificParams);
257 /******************************************************************************
258 * LinuxInputEffectImpl
261 static ULONG WINAPI LinuxInputEffectImpl_AddRef(
262 LPDIRECTINPUTEFFECT iface)
264 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
265 return InterlockedIncrement(&(This->ref));
268 static HRESULT WINAPI LinuxInputEffectImpl_Download(
269 LPDIRECTINPUTEFFECT iface)
271 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
273 TRACE("(this=%p)\n", This);
275 if (ioctl(*(This->fd), EVIOCSFF, &This->effect) == -1) {
276 if (errno == ENOMEM) {
277 return DIERR_DEVICEFULL;
279 FIXME("Could not upload effect. Assuming a disconnected device %d \"%s\".\n", *This->fd, strerror(errno));
280 return DIERR_INPUTLOST;
287 static HRESULT WINAPI LinuxInputEffectImpl_Escape(
288 LPDIRECTINPUTEFFECT iface,
291 WARN("(this=%p,%p): invalid: no hardware-specific escape codes in this"
292 " driver!\n", iface, pesc);
297 static HRESULT WINAPI LinuxInputEffectImpl_GetEffectGuid(
298 LPDIRECTINPUTEFFECT iface,
301 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
303 TRACE("(this=%p,%p)\n", This, pguid);
310 static HRESULT WINAPI LinuxInputEffectImpl_GetEffectStatus(
311 LPDIRECTINPUTEFFECT iface,
314 TRACE("(this=%p,%p)\n", iface, pdwFlags);
316 /* linux sends the effect status through an event.
317 * that event is trapped by our parent joystick driver
318 * and there is no clean way to pass it back to us. */
319 FIXME("Not enough information to provide a status.\n");
326 static HRESULT WINAPI LinuxInputEffectImpl_GetParameters(
327 LPDIRECTINPUTEFFECT iface,
331 HRESULT diErr = DI_OK;
332 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
333 TRACE("(this=%p,%p,%d)\n", This, peff, dwFlags);
335 /* Major conversion factors are:
336 * times: millisecond (linux) -> microsecond (windows) (x * 1000)
337 * forces: scale 0x7FFF (linux) -> scale 10000 (windows) approx ((x / 33) * 10)
338 * angles: scale 0x7FFF (linux) -> scale 35999 (windows) approx ((x / 33) * 36)
339 * angle bases: 0 -> -y (down) (linux) -> 0 -> +x (right) (windows)
342 if (dwFlags & DIEP_AXES) {
343 if (peff->cAxes < 2 /* linuxinput effects always use 2 axes, x and y */)
344 diErr = DIERR_MOREDATA;
349 peff->rgdwAxes[0] = DIJOFS_X;
350 peff->rgdwAxes[1] = DIJOFS_Y;
354 if (dwFlags & DIEP_DIRECTION) {
356 diErr = DIERR_MOREDATA;
361 if (peff->dwFlags & DIEFF_CARTESIAN) {
362 peff->rglDirection[0] = sin(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000;
363 peff->rglDirection[1] = cos(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000;
365 /* Polar and spherical coordinates are the same for two or less
367 * Note that we also use this case if NO flags are marked.
368 * According to MSDN, we should return the direction in the
369 * format that it was specified in, if no flags are marked.
371 peff->rglDirection[0] = (This->effect.direction / 33) * 36 + 9000;
372 if (peff->rglDirection[0] > 35999)
373 peff->rglDirection[0] -= 35999;
378 if (dwFlags & DIEP_DURATION) {
379 peff->dwDuration = (DWORD)This->effect.replay.length * 1000;
382 if (dwFlags & DIEP_ENVELOPE) {
383 struct ff_envelope* env;
384 if (This->effect.type == FF_CONSTANT) env = &This->effect.u.constant.envelope;
385 else if (This->effect.type == FF_PERIODIC) env = &This->effect.u.periodic.envelope;
386 else if (This->effect.type == FF_RAMP) env = &This->effect.u.ramp.envelope;
389 peff->lpEnvelope = NULL;
390 } else if (peff->lpEnvelope == NULL) {
391 return DIERR_INVALIDPARAM;
393 peff->lpEnvelope->dwAttackLevel = (env->attack_level / 33) * 10;
394 peff->lpEnvelope->dwAttackTime = env->attack_length * 1000;
395 peff->lpEnvelope->dwFadeLevel = (env->fade_level / 33) * 10;
396 peff->lpEnvelope->dwFadeTime = env->fade_length * 1000;
400 if (dwFlags & DIEP_GAIN) {
401 peff->dwGain = This->gain * 10000 / 0xFFFF;
404 if (dwFlags & DIEP_SAMPLEPERIOD) {
405 /* the linux input ff driver has no support for setting
406 * the playback sample period. 0 means default. */
407 peff->dwSamplePeriod = 0;
410 if (dwFlags & DIEP_STARTDELAY) {
411 peff->dwStartDelay = This->effect.replay.delay * 1000;
414 if (dwFlags & DIEP_TRIGGERBUTTON) {
415 FIXME("LinuxInput button mapping needs redoing; for now, assuming we're using an actual joystick.\n");
416 peff->dwTriggerButton = DIJOFS_BUTTON(This->effect.trigger.button - BTN_JOYSTICK);
419 if (dwFlags & DIEP_TRIGGERREPEATINTERVAL) {
420 peff->dwTriggerRepeatInterval = This->effect.trigger.interval * 1000;
423 if (dwFlags & DIEP_TYPESPECIFICPARAMS) {
424 DWORD expectedsize = 0;
425 if (This->effect.type == FF_PERIODIC) {
426 expectedsize = sizeof(DIPERIODIC);
427 } else if (This->effect.type == FF_CONSTANT) {
428 expectedsize = sizeof(DICONSTANTFORCE);
429 } else if (This->effect.type == FF_SPRING
430 || This->effect.type == FF_FRICTION
431 || This->effect.type == FF_INERTIA
432 || This->effect.type == FF_DAMPER) {
433 expectedsize = sizeof(DICONDITION) * 2;
434 } else if (This->effect.type == FF_RAMP) {
435 expectedsize = sizeof(DIRAMPFORCE);
437 if (expectedsize > peff->cbTypeSpecificParams)
438 diErr = DIERR_MOREDATA;
439 peff->cbTypeSpecificParams = expectedsize;
443 if (This->effect.type == FF_PERIODIC) {
444 LPDIPERIODIC tsp = peff->lpvTypeSpecificParams;
445 tsp->dwMagnitude = (This->effect.u.periodic.magnitude / 33) * 10;
446 tsp->lOffset = (This->effect.u.periodic.offset / 33) * 10;
447 tsp->dwPhase = (This->effect.u.periodic.phase / 33) * 36;
448 tsp->dwPeriod = (This->effect.u.periodic.period * 1000);
449 } else if (This->effect.type == FF_CONSTANT) {
450 LPDICONSTANTFORCE tsp = peff->lpvTypeSpecificParams;
451 tsp->lMagnitude = (This->effect.u.constant.level / 33) * 10;
452 } else if (This->effect.type == FF_SPRING
453 || This->effect.type == FF_FRICTION
454 || This->effect.type == FF_INERTIA
455 || This->effect.type == FF_DAMPER) {
456 LPDICONDITION tsp = peff->lpvTypeSpecificParams;
458 for (i = 0; i < 2; ++i) {
459 tsp[i].lOffset = (This->effect.u.condition[i].center / 33) * 10;
460 tsp[i].lPositiveCoefficient = (This->effect.u.condition[i].right_coeff / 33) * 10;
461 tsp[i].lNegativeCoefficient = (This->effect.u.condition[i].left_coeff / 33) * 10;
462 tsp[i].dwPositiveSaturation = (This->effect.u.condition[i].right_saturation / 33) * 10;
463 tsp[i].dwNegativeSaturation = (This->effect.u.condition[i].left_saturation / 33) * 10;
464 tsp[i].lDeadBand = (This->effect.u.condition[i].deadband / 33) * 10;
466 } else if (This->effect.type == FF_RAMP) {
467 LPDIRAMPFORCE tsp = peff->lpvTypeSpecificParams;
468 tsp->lStart = (This->effect.u.ramp.start_level / 33) * 10;
469 tsp->lEnd = (This->effect.u.ramp.end_level / 33) * 10;
477 static HRESULT WINAPI LinuxInputEffectImpl_Initialize(
478 LPDIRECTINPUTEFFECT iface,
483 FIXME("(this=%p,%p,%d,%s): stub!\n",
484 iface, hinst, dwVersion, debugstr_guid(rguid));
489 static HRESULT WINAPI LinuxInputEffectImpl_QueryInterface(
490 LPDIRECTINPUTEFFECT iface,
494 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
496 TRACE("(this=%p,%s,%p)\n", This, debugstr_guid(riid), ppvObject);
498 if (IsEqualGUID(&IID_IUnknown, riid) ||
499 IsEqualGUID(&IID_IDirectInputEffect, riid)) {
500 LinuxInputEffectImpl_AddRef(iface);
505 TRACE("Unsupported interface!\n");
509 static HRESULT WINAPI LinuxInputEffectImpl_Start(
510 LPDIRECTINPUTEFFECT iface,
514 struct input_event event;
515 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
517 TRACE("(this=%p,%d,%d)\n", This, dwIterations, dwFlags);
519 if (!(dwFlags & DIES_NODOWNLOAD)) {
520 /* Download the effect if necessary */
521 if (This->effect.id == -1) {
522 HRESULT res = LinuxInputEffectImpl_Download(iface);
528 if (dwFlags & DIES_SOLO) {
529 FIXME("Solo mode requested: should be stopping all effects here!\n");
533 event.code = This->effect.id;
534 event.value = min( dwIterations, INT_MAX );
535 if (write(*(This->fd), &event, sizeof(event)) == -1) {
536 FIXME("Unable to write event. Assuming device disconnected.\n");
537 return DIERR_INPUTLOST;
543 static HRESULT WINAPI LinuxInputEffectImpl_SetParameters(
544 LPDIRECTINPUTEFFECT iface,
548 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
549 DWORD type = _typeFromGUID(&This->guid);
550 HRESULT retval = DI_OK;
552 TRACE("(this=%p,%p,%d)\n", This, peff, dwFlags);
554 _dump_DIEFFECT(peff, &This->guid, dwFlags);
556 if ((dwFlags & ~DIEP_NORESTART & ~DIEP_NODOWNLOAD & ~DIEP_START) == 0) {
558 dwFlags = DIEP_AXES | DIEP_DIRECTION | DIEP_DURATION | DIEP_ENVELOPE |
559 DIEP_GAIN | DIEP_SAMPLEPERIOD | DIEP_STARTDELAY | DIEP_TRIGGERBUTTON |
560 DIEP_TRIGGERREPEATINTERVAL | DIEP_TYPESPECIFICPARAMS;
563 if (dwFlags & DIEP_AXES) {
564 /* the linux input effect system only supports one or two axes */
566 return DIERR_INVALIDPARAM;
567 else if (peff->cAxes < 1)
568 return DIERR_INCOMPLETEEFFECT;
569 This->first_axis_is_x = peff->rgdwAxes[0] == DIJOFS_X;
572 /* some of this may look funky, but it's 'cause the linux driver and directx have
573 * different opinions about which way direction "0" is. directx has 0 along the x
574 * axis (left), linux has it along the y axis (down). */
575 if (dwFlags & DIEP_DIRECTION) {
576 if (peff->cAxes == 1) {
577 if (peff->dwFlags & DIEFF_CARTESIAN) {
578 if (dwFlags & DIEP_AXES) {
579 if (peff->rgdwAxes[0] == DIJOFS_X && peff->rglDirection[0] >= 0)
580 This->effect.direction = 0x4000;
581 else if (peff->rgdwAxes[0] == DIJOFS_X && peff->rglDirection[0] < 0)
582 This->effect.direction = 0xC000;
583 else if (peff->rgdwAxes[0] == DIJOFS_Y && peff->rglDirection[0] >= 0)
584 This->effect.direction = 0;
585 else if (peff->rgdwAxes[0] == DIJOFS_Y && peff->rglDirection[0] < 0)
586 This->effect.direction = 0x8000;
589 /* one-axis effects must use cartesian coords */
590 return DIERR_INVALIDPARAM;
592 } else { /* two axes */
593 if (peff->dwFlags & DIEFF_CARTESIAN) {
595 if (This->first_axis_is_x) {
596 x = peff->rglDirection[0];
597 y = peff->rglDirection[1];
599 x = peff->rglDirection[1];
600 y = peff->rglDirection[0];
602 This->effect.direction = (int)((3 * M_PI / 2 - atan2(y, x)) * -0x7FFF / M_PI);
604 /* Polar and spherical are the same for 2 axes */
605 /* Precision is important here, so we do double math with exact constants */
606 This->effect.direction = (int)(((double)peff->rglDirection[0] - 90) / 35999) * 0x7FFF;
611 if (dwFlags & DIEP_DURATION)
612 This->effect.replay.length = peff->dwDuration / 1000;
614 if (dwFlags & DIEP_ENVELOPE) {
615 struct ff_envelope* env;
616 if (This->effect.type == FF_CONSTANT) env = &This->effect.u.constant.envelope;
617 else if (This->effect.type == FF_PERIODIC) env = &This->effect.u.periodic.envelope;
618 else if (This->effect.type == FF_RAMP) env = &This->effect.u.ramp.envelope;
621 if (peff->lpEnvelope == NULL) {
622 /* if this type had an envelope, reset it */
624 env->attack_length = 0;
625 env->attack_level = 0;
626 env->fade_length = 0;
630 /* did we get passed an envelope for a type that doesn't even have one? */
631 if (!env) return DIERR_INVALIDPARAM;
632 /* copy the envelope */
633 env->attack_length = peff->lpEnvelope->dwAttackTime / 1000;
634 env->attack_level = (peff->lpEnvelope->dwAttackLevel / 10) * 32;
635 env->fade_length = peff->lpEnvelope->dwFadeTime / 1000;
636 env->fade_level = (peff->lpEnvelope->dwFadeLevel / 10) * 32;
640 /* Gain and Sample Period settings are not supported by the linux
642 if (dwFlags & DIEP_GAIN) {
643 This->gain = 0xFFFF * peff->dwGain / 10000;
644 TRACE("Effect gain requested but no effect gain functionality present.\n");
647 if (dwFlags & DIEP_SAMPLEPERIOD)
648 TRACE("Sample period requested but no sample period functionality present.\n");
650 if (dwFlags & DIEP_STARTDELAY)
651 This->effect.replay.delay = peff->dwStartDelay / 1000;
653 if (dwFlags & DIEP_TRIGGERBUTTON) {
654 if (peff->dwTriggerButton != -1) {
655 FIXME("Linuxinput button mapping needs redoing, assuming we're using a joystick.\n");
656 FIXME("Trigger button translation not yet implemented!\n");
658 This->effect.trigger.button = 0;
661 if (dwFlags & DIEP_TRIGGERREPEATINTERVAL)
662 This->effect.trigger.interval = peff->dwTriggerRepeatInterval / 1000;
664 if (dwFlags & DIEP_TYPESPECIFICPARAMS) {
665 if (!(peff->lpvTypeSpecificParams))
666 return DIERR_INCOMPLETEEFFECT;
667 if (type == DIEFT_PERIODIC) {
669 if (peff->cbTypeSpecificParams != sizeof(DIPERIODIC))
670 return DIERR_INVALIDPARAM;
671 tsp = peff->lpvTypeSpecificParams;
672 This->effect.u.periodic.magnitude = (tsp->dwMagnitude / 10) * 32;
673 This->effect.u.periodic.offset = (tsp->lOffset / 10) * 32;
674 This->effect.u.periodic.phase = (tsp->dwPhase / 9) * 8; /* == (/ 36 * 32) */
675 This->effect.u.periodic.period = tsp->dwPeriod / 1000;
676 } else if (type == DIEFT_CONSTANTFORCE) {
677 LPCDICONSTANTFORCE tsp;
678 if (peff->cbTypeSpecificParams != sizeof(DICONSTANTFORCE))
679 return DIERR_INVALIDPARAM;
680 tsp = peff->lpvTypeSpecificParams;
681 This->effect.u.constant.level = (max(min(tsp->lMagnitude, 10000), -10000) / 10) * 32;
682 } else if (type == DIEFT_RAMPFORCE) {
684 if (peff->cbTypeSpecificParams != sizeof(DIRAMPFORCE))
685 return DIERR_INVALIDPARAM;
686 tsp = peff->lpvTypeSpecificParams;
687 This->effect.u.ramp.start_level = (tsp->lStart / 10) * 32;
688 This->effect.u.ramp.end_level = (tsp->lEnd / 10) * 32;
689 } else if (type == DIEFT_CONDITION) {
690 LPCDICONDITION tsp = peff->lpvTypeSpecificParams;
691 if (peff->cbTypeSpecificParams == sizeof(DICONDITION)) {
692 /* One condition block. This needs to be rotated to direction,
693 * and expanded to separate x and y conditions. */
696 factor[0] = asin((This->effect.direction * 3.0 * M_PI) / 0x7FFF);
697 factor[1] = acos((This->effect.direction * 3.0 * M_PI) / 0x7FFF);
698 for (i = 0; i < 2; ++i) {
699 This->effect.u.condition[i].center = (int)(factor[i] * (tsp->lOffset / 10) * 32);
700 This->effect.u.condition[i].right_coeff = (int)(factor[i] * (tsp->lPositiveCoefficient / 10) * 32);
701 This->effect.u.condition[i].left_coeff = (int)(factor[i] * (tsp->lNegativeCoefficient / 10) * 32);
702 This->effect.u.condition[i].right_saturation = (int)(factor[i] * (tsp->dwPositiveSaturation / 10) * 32);
703 This->effect.u.condition[i].left_saturation = (int)(factor[i] * (tsp->dwNegativeSaturation / 10) * 32);
704 This->effect.u.condition[i].deadband = (int)(factor[i] * (tsp->lDeadBand / 10) * 32);
706 } else if (peff->cbTypeSpecificParams == 2 * sizeof(DICONDITION)) {
707 /* Two condition blocks. Direct parameter copy. */
709 for (i = 0; i < 2; ++i) {
710 This->effect.u.condition[i].center = (tsp[i].lOffset / 10) * 32;
711 This->effect.u.condition[i].right_coeff = (tsp[i].lPositiveCoefficient / 10) * 32;
712 This->effect.u.condition[i].left_coeff = (tsp[i].lNegativeCoefficient / 10) * 32;
713 This->effect.u.condition[i].right_saturation = (tsp[i].dwPositiveSaturation / 10) * 32;
714 This->effect.u.condition[i].left_saturation = (tsp[i].dwNegativeSaturation / 10) * 32;
715 This->effect.u.condition[i].deadband = (tsp[i].lDeadBand / 10) * 32;
718 return DIERR_INVALIDPARAM;
721 FIXME("Custom force types are not supported\n");
722 return DIERR_INVALIDPARAM;
726 if (!(dwFlags & DIEP_NODOWNLOAD))
727 retval = LinuxInputEffectImpl_Download(iface);
729 return DI_DOWNLOADSKIPPED;
731 if (dwFlags & DIEP_NORESTART)
732 TRACE("DIEP_NORESTART: not handled (we have no control of that).\n");
734 if (dwFlags & DIEP_START)
735 retval = LinuxInputEffectImpl_Start(iface, 1, 0);
742 static HRESULT WINAPI LinuxInputEffectImpl_Stop(
743 LPDIRECTINPUTEFFECT iface)
745 struct input_event event;
746 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
748 TRACE("(this=%p)\n", This);
751 event.code = This->effect.id;
753 /* we don't care about the success or failure of this call */
754 write(*(This->fd), &event, sizeof(event));
759 static HRESULT WINAPI LinuxInputEffectImpl_Unload(
760 LPDIRECTINPUTEFFECT iface)
762 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
763 TRACE("(this=%p)\n", This);
765 /* Erase the downloaded effect */
766 if (ioctl(*(This->fd), EVIOCRMFF, This->effect.id) == -1)
767 return DIERR_INVALIDPARAM;
769 /* Mark the effect as deallocated */
770 This->effect.id = -1;
775 static ULONG WINAPI LinuxInputEffectImpl_Release(LPDIRECTINPUTEFFECT iface)
777 LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
778 ULONG ref = InterlockedDecrement(&(This->ref));
782 LinuxInputEffectImpl_Stop(iface);
783 LinuxInputEffectImpl_Unload(iface);
784 list_remove(This->entry);
785 HeapFree(GetProcessHeap(), 0, LIST_ENTRY(This->entry, effect_list_item, entry));
786 HeapFree(GetProcessHeap(), 0, This);
791 /******************************************************************************
795 DECLSPEC_HIDDEN HRESULT linuxinput_create_effect(
798 struct list *parent_list_entry,
799 LPDIRECTINPUTEFFECT* peff)
801 LinuxInputEffectImpl* newEffect = HeapAlloc(GetProcessHeap(),
802 HEAP_ZERO_MEMORY, sizeof(LinuxInputEffectImpl));
803 DWORD type = _typeFromGUID(rguid);
805 newEffect->IDirectInputEffect_iface.lpVtbl = &LinuxInputEffectVtbl;
807 newEffect->guid = *rguid;
809 newEffect->gain = 0xFFFF;
811 /* set the type. this cannot be changed over the effect's life. */
814 newEffect->effect.type = FF_PERIODIC;
815 if (IsEqualGUID(rguid, &GUID_Sine)) {
816 newEffect->effect.u.periodic.waveform = FF_SINE;
817 } else if (IsEqualGUID(rguid, &GUID_Triangle)) {
818 newEffect->effect.u.periodic.waveform = FF_TRIANGLE;
819 } else if (IsEqualGUID(rguid, &GUID_Square)) {
820 newEffect->effect.u.periodic.waveform = FF_SQUARE;
821 } else if (IsEqualGUID(rguid, &GUID_SawtoothUp)) {
822 newEffect->effect.u.periodic.waveform = FF_SAW_UP;
823 } else if (IsEqualGUID(rguid, &GUID_SawtoothDown)) {
824 newEffect->effect.u.periodic.waveform = FF_SAW_DOWN;
827 case DIEFT_CONSTANTFORCE:
828 newEffect->effect.type = FF_CONSTANT;
830 case DIEFT_RAMPFORCE:
831 newEffect->effect.type = FF_RAMP;
833 case DIEFT_CONDITION:
834 if (IsEqualGUID(rguid, &GUID_Spring)) {
835 newEffect->effect.type = FF_SPRING;
836 } else if (IsEqualGUID(rguid, &GUID_Friction)) {
837 newEffect->effect.type = FF_FRICTION;
838 } else if (IsEqualGUID(rguid, &GUID_Inertia)) {
839 newEffect->effect.type = FF_INERTIA;
840 } else if (IsEqualGUID(rguid, &GUID_Damper)) {
841 newEffect->effect.type = FF_DAMPER;
844 case DIEFT_CUSTOMFORCE:
845 FIXME("Custom forces are not supported.\n");
846 HeapFree(GetProcessHeap(), 0, newEffect);
847 return DIERR_INVALIDPARAM;
849 FIXME("Unknown force type 0x%x.\n", type);
850 HeapFree(GetProcessHeap(), 0, newEffect);
851 return DIERR_INVALIDPARAM;
854 /* mark as non-uploaded */
855 newEffect->effect.id = -1;
857 newEffect->entry = parent_list_entry;
859 *peff = &newEffect->IDirectInputEffect_iface;
861 TRACE("Creating linux input system effect (%p) with guid %s\n",
862 *peff, _dump_dinput_GUID(rguid));
867 DECLSPEC_HIDDEN HRESULT linuxinput_get_info_A(
870 LPDIEFFECTINFOA info)
872 DWORD type = _typeFromGUID(rguid);
874 TRACE("(%d, %s, %p) type=%d\n", fd, _dump_dinput_GUID(rguid), info, type);
876 if (!info) return E_POINTER;
878 if (info->dwSize != sizeof(DIEFFECTINFOA)) return DIERR_INVALIDPARAM;
882 info->dwEffType = type;
883 /* the event device API does not support querying for all these things
884 * therefore we assume that we have support for them
885 * that's not as dangerous as it sounds, since drivers are allowed to
886 * ignore parameters they claim to support anyway */
887 info->dwEffType |= DIEFT_DEADBAND | DIEFT_FFATTACK | DIEFT_FFFADE
888 | DIEFT_POSNEGCOEFFICIENTS | DIEFT_POSNEGSATURATION
889 | DIEFT_SATURATION | DIEFT_STARTDELAY;
891 /* again, assume we have support for everything */
892 info->dwStaticParams = DIEP_ALLPARAMS;
893 info->dwDynamicParams = info->dwStaticParams;
895 /* yes, this is windows behavior (print the GUID_Name for name) */
896 strcpy(info->tszName, _dump_dinput_GUID(rguid));
901 DECLSPEC_HIDDEN HRESULT linuxinput_get_info_W(
904 LPDIEFFECTINFOW info)
906 DWORD type = _typeFromGUID(rguid);
908 TRACE("(%d, %s, %p) type=%d\n", fd, _dump_dinput_GUID(rguid), info, type);
910 if (!info) return E_POINTER;
912 if (info->dwSize != sizeof(DIEFFECTINFOW)) return DIERR_INVALIDPARAM;
916 info->dwEffType = type;
917 /* the event device API does not support querying for all these things
918 * therefore we assume that we have support for them
919 * that's not as dangerous as it sounds, since drivers are allowed to
920 * ignore parameters they claim to support anyway */
921 info->dwEffType |= DIEFT_DEADBAND | DIEFT_FFATTACK | DIEFT_FFFADE
922 | DIEFT_POSNEGCOEFFICIENTS | DIEFT_POSNEGSATURATION
923 | DIEFT_SATURATION | DIEFT_STARTDELAY;
925 /* again, assume we have support for everything */
926 info->dwStaticParams = DIEP_ALLPARAMS;
927 info->dwDynamicParams = info->dwStaticParams;
929 /* yes, this is windows behavior (print the GUID_Name for name) */
930 MultiByteToWideChar(CP_ACP, 0, _dump_dinput_GUID(rguid), -1,
931 info->tszName, MAX_PATH);
936 static const IDirectInputEffectVtbl LinuxInputEffectVtbl = {
937 LinuxInputEffectImpl_QueryInterface,
938 LinuxInputEffectImpl_AddRef,
939 LinuxInputEffectImpl_Release,
940 LinuxInputEffectImpl_Initialize,
941 LinuxInputEffectImpl_GetEffectGuid,
942 LinuxInputEffectImpl_GetParameters,
943 LinuxInputEffectImpl_SetParameters,
944 LinuxInputEffectImpl_Start,
945 LinuxInputEffectImpl_Stop,
946 LinuxInputEffectImpl_GetEffectStatus,
947 LinuxInputEffectImpl_Download,
948 LinuxInputEffectImpl_Unload,
949 LinuxInputEffectImpl_Escape
952 #endif /* HAVE_STRUCT_FF_EFFECT_DIRECTION */