MouseImpl.cpp@ 98100

Last change on this file since 98100 was 97791, checked in by vboxsync, 2 years ago
VMMDev mouse: bugref:10285: Fix burn.
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1	/* $Id: MouseImpl.cpp 97791 2022-12-13 13:11:09Z vboxsync $ */
2	/** @file
3	* VirtualBox COM class implementation
4	*/
5
6	/*
7	* Copyright (C) 2006-2022 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#define LOG_GROUP LOG_GROUP_MAIN_MOUSE
29	#include "LoggingNew.h"
30
31	#include <iprt/cpp/utils.h>
32
33	#include "MouseImpl.h"
34	#include "DisplayImpl.h"
35	#include "VMMDev.h"
36	#include "MousePointerShapeWrap.h"
37	#include "VBoxEvents.h"
38
39	#include <VBox/vmm/pdmdrv.h>
40	#include <VBox/VMMDev.h>
41	#include <VBox/err.h>
42
43
44	class ATL_NO_VTABLE MousePointerShape:
45	public MousePointerShapeWrap
46	{
47	public:
48
49	DECLARE_COMMON_CLASS_METHODS(MousePointerShape)
50
51	HRESULT FinalConstruct();
52	void FinalRelease();
53
54	/* Public initializer/uninitializer for internal purposes only. */
55	HRESULT init(ComObjPtr<Mouse> pMouse,
56	bool fVisible, bool fAlpha,
57	uint32_t hotX, uint32_t hotY,
58	uint32_t width, uint32_t height,
59	const uint8_t *pu8Shape, uint32_t cbShape);
60	void uninit();
61
62	private:
63	// wrapped IMousePointerShape properties
64	virtual HRESULT getVisible(BOOL *aVisible);
65	virtual HRESULT getAlpha(BOOL *aAlpha);
66	virtual HRESULT getHotX(ULONG *aHotX);
67	virtual HRESULT getHotY(ULONG *aHotY);
68	virtual HRESULT getWidth(ULONG *aWidth);
69	virtual HRESULT getHeight(ULONG *aHeight);
70	virtual HRESULT getShape(std::vector<BYTE> &aShape);
71
72	struct Data
73	{
74	ComObjPtr<Mouse> pMouse;
75	bool fVisible;
76	bool fAlpha;
77	uint32_t hotX;
78	uint32_t hotY;
79	uint32_t width;
80	uint32_t height;
81	std::vector<BYTE> shape;
82	};
83
84	Data m;
85	};
86
87	/*
88	* MousePointerShape implementation.
89	*/
90	DEFINE_EMPTY_CTOR_DTOR(MousePointerShape)
91
92	HRESULT MousePointerShape::FinalConstruct()
93	{
94	return BaseFinalConstruct();
95	}
96
97	void MousePointerShape::FinalRelease()
98	{
99	uninit();
100
101	BaseFinalRelease();
102	}
103
104	HRESULT MousePointerShape::init(ComObjPtr<Mouse> pMouse,
105	bool fVisible, bool fAlpha,
106	uint32_t hotX, uint32_t hotY,
107	uint32_t width, uint32_t height,
108	const uint8_t *pu8Shape, uint32_t cbShape)
109	{
110	LogFlowThisFunc(("v %d, a %d, h %d,%d, %dx%d, cb %d\n",
111	fVisible, fAlpha, hotX, hotY, width, height, cbShape));
112
113	/* Enclose the state transition NotReady->InInit->Ready */
114	AutoInitSpan autoInitSpan(this);
115	AssertReturn(autoInitSpan.isOk(), E_FAIL);
116
117	m.pMouse = pMouse;
118	m.fVisible = fVisible;
119	m.fAlpha = fAlpha;
120	m.hotX = hotX;
121	m.hotY = hotY;
122	m.width = width;
123	m.height = height;
124	m.shape.resize(cbShape);
125	if (cbShape)
126	{
127	memcpy(&m.shape.front(), pu8Shape, cbShape);
128	}
129
130	/* Confirm a successful initialization */
131	autoInitSpan.setSucceeded();
132
133	return S_OK;
134	}
135
136	void MousePointerShape::uninit()
137	{
138	LogFlowThisFunc(("\n"));
139
140	/* Enclose the state transition Ready->InUninit->NotReady */
141	AutoUninitSpan autoUninitSpan(this);
142	if (autoUninitSpan.uninitDone())
143	return;
144
145	m.pMouse.setNull();
146	}
147
148	HRESULT MousePointerShape::getVisible(BOOL *aVisible)
149	{
150	*aVisible = m.fVisible;
151	return S_OK;
152	}
153
154	HRESULT MousePointerShape::getAlpha(BOOL *aAlpha)
155	{
156	*aAlpha = m.fAlpha;
157	return S_OK;
158	}
159
160	HRESULT MousePointerShape::getHotX(ULONG *aHotX)
161	{
162	*aHotX = m.hotX;
163	return S_OK;
164	}
165
166	HRESULT MousePointerShape::getHotY(ULONG *aHotY)
167	{
168	*aHotY = m.hotY;
169	return S_OK;
170	}
171
172	HRESULT MousePointerShape::getWidth(ULONG *aWidth)
173	{
174	*aWidth = m.width;
175	return S_OK;
176	}
177
178	HRESULT MousePointerShape::getHeight(ULONG *aHeight)
179	{
180	*aHeight = m.height;
181	return S_OK;
182	}
183
184	HRESULT MousePointerShape::getShape(std::vector<BYTE> &aShape)
185	{
186	aShape.resize(m.shape.size());
187	if (m.shape.size())
188	memcpy(&aShape.front(), &m.shape.front(), aShape.size());
189	return S_OK;
190	}
191
192
193	/** @name Mouse device capabilities bitfield
194	* @{ */
195	enum
196	{
197	/** The mouse device can do relative reporting */
198	MOUSE_DEVCAP_RELATIVE = 1,
199	/** The mouse device can do absolute reporting */
200	MOUSE_DEVCAP_ABSOLUTE = 2,
201	/** The mouse device can do absolute multi-touch reporting */
202	MOUSE_DEVCAP_MT_ABSOLUTE = 4,
203	/** The mouse device can do relative multi-touch reporting */
204	MOUSE_DEVCAP_MT_RELATIVE = 8,
205	};
206	/** @} */
207
208
209	/**
210	* Mouse driver instance data.
211	*/
212	struct DRVMAINMOUSE
213	{
214	/** Pointer to the mouse object. */
215	Mouse *pMouse;
216	/** Pointer to the driver instance structure. */
217	PPDMDRVINS pDrvIns;
218	/** Pointer to the mouse port interface of the driver/device above us. */
219	PPDMIMOUSEPORT pUpPort;
220	/** Our mouse connector interface. */
221	PDMIMOUSECONNECTOR IConnector;
222	/** The capabilities of this device. */
223	uint32_t u32DevCaps;
224	};
225
226
227	// constructor / destructor
228	/////////////////////////////////////////////////////////////////////////////
229
230	Mouse::Mouse()
231	: mParent(NULL)
232	{
233	}
234
235	Mouse::~Mouse()
236	{
237	}
238
239
240	HRESULT Mouse::FinalConstruct()
241	{
242	RT_ZERO(mpDrv);
243	RT_ZERO(mPointerData);
244	mcLastX = 0x8000;
245	mcLastY = 0x8000;
246	mfLastButtons = 0;
247	mfVMMDevGuestCaps = 0;
248	return BaseFinalConstruct();
249	}
250
251	void Mouse::FinalRelease()
252	{
253	uninit();
254	BaseFinalRelease();
255	}
256
257	// public methods only for internal purposes
258	/////////////////////////////////////////////////////////////////////////////
259
260	/**
261	* Initializes the mouse object.
262	*
263	* @returns COM result indicator
264	* @param parent handle of our parent object
265	*/
266	HRESULT Mouse::init (ConsoleMouseInterface *parent)
267	{
268	LogFlowThisFunc(("\n"));
269
270	ComAssertRet(parent, E_INVALIDARG);
271
272	/* Enclose the state transition NotReady->InInit->Ready */
273	AutoInitSpan autoInitSpan(this);
274	AssertReturn(autoInitSpan.isOk(), E_FAIL);
275
276	unconst(mParent) = parent;
277
278	unconst(mEventSource).createObject();
279	HRESULT hrc = mEventSource->init();
280	AssertComRCReturnRC(hrc);
281
282	ComPtr<IEvent> ptrEvent;
283	hrc = ::CreateGuestMouseEvent(ptrEvent.asOutParam(), mEventSource,
284	(GuestMouseEventMode_T)0, 0 /x/, 0 /y/, 0 /z/, 0 /w/, 0 /buttons/);
285	AssertComRCReturnRC(hrc);
286	mMouseEvent.init(ptrEvent, mEventSource);
287
288	/* Confirm a successful initialization */
289	autoInitSpan.setSucceeded();
290
291	return S_OK;
292	}
293
294	/**
295	* Uninitializes the instance and sets the ready flag to FALSE.
296	* Called either from FinalRelease() or by the parent when it gets destroyed.
297	*/
298	void Mouse::uninit()
299	{
300	LogFlowThisFunc(("\n"));
301
302	/* Enclose the state transition Ready->InUninit->NotReady */
303	AutoUninitSpan autoUninitSpan(this);
304	if (autoUninitSpan.uninitDone())
305	return;
306
307	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
308	{
309	if (mpDrv[i])
310	mpDrv[i]->pMouse = NULL;
311	mpDrv[i] = NULL;
312	}
313
314	mPointerShape.setNull();
315
316	RTMemFree(mPointerData.pu8Shape);
317	mPointerData.pu8Shape = NULL;
318	mPointerData.cbShape = 0;
319
320	mMouseEvent.uninit();
321	unconst(mEventSource).setNull();
322	unconst(mParent) = NULL;
323	}
324
325	void Mouse::updateMousePointerShape(bool fVisible, bool fAlpha,
326	uint32_t hotX, uint32_t hotY,
327	uint32_t width, uint32_t height,
328	const uint8_t *pu8Shape, uint32_t cbShape)
329	{
330	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
331
332	RTMemFree(mPointerData.pu8Shape);
333	mPointerData.pu8Shape = NULL;
334	mPointerData.cbShape = 0;
335
336	mPointerData.fVisible = fVisible;
337	mPointerData.fAlpha = fAlpha;
338	mPointerData.hotX = hotX;
339	mPointerData.hotY = hotY;
340	mPointerData.width = width;
341	mPointerData.height = height;
342	if (cbShape)
343	{
344	mPointerData.pu8Shape = (uint8_t *)RTMemDup(pu8Shape, cbShape);
345	if (mPointerData.pu8Shape)
346	{
347	mPointerData.cbShape = cbShape;
348	}
349	}
350
351	mPointerShape.setNull();
352	}
353
354	// IMouse properties
355	/////////////////////////////////////////////////////////////////////////////
356
357	/** Report the front-end's mouse handling capabilities to the VMM device and
358	* thus to the guest.
359	* @note all calls out of this object are made with no locks held! */
360	HRESULT Mouse::i_updateVMMDevMouseCaps(uint32_t fCapsAdded,
361	uint32_t fCapsRemoved)
362	{
363	VMMDevMouseInterface *pVMMDev = mParent->i_getVMMDevMouseInterface();
364	if (!pVMMDev)
365	return E_FAIL; /* No assertion, as the front-ends can send events
366	* at all sorts of inconvenient times. */
367	DisplayMouseInterface *pDisplay = mParent->i_getDisplayMouseInterface();
368	if (pDisplay == NULL)
369	return E_FAIL;
370	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
371	if (!pVMMDevPort)
372	return E_FAIL; /* same here */
373
374	int vrc = pVMMDevPort->pfnUpdateMouseCapabilities(pVMMDevPort, fCapsAdded,
375	fCapsRemoved);
376	if (RT_FAILURE(vrc))
377	return E_FAIL;
378	return pDisplay->i_reportHostCursorCapabilities(fCapsAdded, fCapsRemoved);
379	}
380
381	/**
382	* Returns whether the currently active device portfolio can accept absolute
383	* mouse events.
384	*
385	* @returns COM status code
386	* @param aAbsoluteSupported address of result variable
387	*/
388	HRESULT Mouse::getAbsoluteSupported(BOOL *aAbsoluteSupported)
389	{
390	*aAbsoluteSupported = i_supportsAbs();
391	return S_OK;
392	}
393
394	/**
395	* Returns whether the currently active device portfolio can accept relative
396	* mouse events.
397	*
398	* @returns COM status code
399	* @param aRelativeSupported address of result variable
400	*/
401	HRESULT Mouse::getRelativeSupported(BOOL *aRelativeSupported)
402	{
403	*aRelativeSupported = i_supportsRel();
404	return S_OK;
405	}
406
407	/**
408	* Returns whether the currently active device portfolio can accept multi-touch
409	* touchscreen events.
410	*
411	* @returns COM status code
412	* @param aTouchScreenSupported address of result variable
413	*/
414	HRESULT Mouse::getTouchScreenSupported(BOOL *aTouchScreenSupported)
415	{
416	*aTouchScreenSupported = i_supportsTS();
417	return S_OK;
418	}
419
420	/**
421	* Returns whether the currently active device portfolio can accept multi-touch
422	* touchpad events.
423	*
424	* @returns COM status code
425	* @param aTouchPadSupported address of result variable
426	*/
427	HRESULT Mouse::getTouchPadSupported(BOOL *aTouchPadSupported)
428	{
429	*aTouchPadSupported = i_supportsTP();
430	return S_OK;
431	}
432
433	/**
434	* Returns whether the guest can currently switch to drawing the mouse cursor
435	* itself if it is asked to by the front-end.
436	*
437	* @returns COM status code
438	* @param aNeedsHostCursor address of result variable
439	*/
440	HRESULT Mouse::getNeedsHostCursor(BOOL *aNeedsHostCursor)
441	{
442	*aNeedsHostCursor = i_guestNeedsHostCursor();
443	return S_OK;
444	}
445
446	HRESULT Mouse::getPointerShape(ComPtr<IMousePointerShape> &aPointerShape)
447	{
448	HRESULT hr = S_OK;
449
450	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
451
452	if (mPointerShape.isNull())
453	{
454	ComObjPtr<MousePointerShape> obj;
455	hr = obj.createObject();
456	if (SUCCEEDED(hr))
457	{
458	hr = obj->init(this, mPointerData.fVisible, mPointerData.fAlpha,
459	mPointerData.hotX, mPointerData.hotY,
460	mPointerData.width, mPointerData.height,
461	mPointerData.pu8Shape, mPointerData.cbShape);
462	}
463
464	if (SUCCEEDED(hr))
465	{
466	mPointerShape = obj;
467	}
468	}
469
470	if (SUCCEEDED(hr))
471	{
472	aPointerShape = mPointerShape;
473	}
474
475	return hr;
476	}
477
478	// IMouse methods
479	/////////////////////////////////////////////////////////////////////////////
480
481	/** Converts a bitfield containing information about mouse buttons currently
482	* held down from the format used by the front-end to the format used by PDM
483	* and the emulated pointing devices. */
484	static uint32_t i_mouseButtonsToPDM(LONG buttonState)
485	{
486	uint32_t fButtons = 0;
487	if (buttonState & MouseButtonState_LeftButton)
488	fButtons \|= PDMIMOUSEPORT_BUTTON_LEFT;
489	if (buttonState & MouseButtonState_RightButton)
490	fButtons \|= PDMIMOUSEPORT_BUTTON_RIGHT;
491	if (buttonState & MouseButtonState_MiddleButton)
492	fButtons \|= PDMIMOUSEPORT_BUTTON_MIDDLE;
493	if (buttonState & MouseButtonState_XButton1)
494	fButtons \|= PDMIMOUSEPORT_BUTTON_X1;
495	if (buttonState & MouseButtonState_XButton2)
496	fButtons \|= PDMIMOUSEPORT_BUTTON_X2;
497	return fButtons;
498	}
499
500	HRESULT Mouse::getEventSource(ComPtr<IEventSource> &aEventSource)
501	{
502	// no need to lock - lifetime constant
503	mEventSource.queryInterfaceTo(aEventSource.asOutParam());
504	return S_OK;
505	}
506
507	/**
508	* Send a relative pointer event to the relative device we deem most
509	* appropriate.
510	*
511	* @returns COM status code
512	*/
513	HRESULT Mouse::i_reportRelEventToMouseDev(int32_t dx, int32_t dy, int32_t dz,
514	int32_t dw, uint32_t fButtons)
515	{
516	if (dx \|\| dy \|\| dz \|\| dw \|\| fButtons != mfLastButtons)
517	{
518	PPDMIMOUSEPORT pUpPort = NULL;
519	{
520	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
521
522	for (unsigned i = 0; !pUpPort && i < MOUSE_MAX_DEVICES; ++i)
523	{
524	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_RELATIVE))
525	pUpPort = mpDrv[i]->pUpPort;
526	}
527	}
528	if (!pUpPort)
529	return S_OK;
530
531	int vrc = pUpPort->pfnPutEvent(pUpPort, dx, dy, dz, dw, fButtons);
532
533	if (RT_FAILURE(vrc))
534	return setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
535	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
536	vrc);
537	mfLastButtons = fButtons;
538	}
539	return S_OK;
540	}
541
542
543	/**
544	* Send an absolute pointer event to the emulated absolute device we deem most
545	* appropriate.
546	*
547	* @returns COM status code
548	*/
549	HRESULT Mouse::i_reportAbsEventToMouseDev(int32_t x, int32_t y,
550	int32_t dz, int32_t dw, uint32_t fButtons)
551	{
552	if ( x < VMMDEV_MOUSE_RANGE_MIN
553	\|\| x > VMMDEV_MOUSE_RANGE_MAX)
554	return S_OK;
555	if ( y < VMMDEV_MOUSE_RANGE_MIN
556	\|\| y > VMMDEV_MOUSE_RANGE_MAX)
557	return S_OK;
558	if ( x != mcLastX \|\| y != mcLastY
559	\|\| dz \|\| dw \|\| fButtons != mfLastButtons)
560	{
561	PPDMIMOUSEPORT pUpPort = NULL;
562	{
563	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
564
565	for (unsigned i = 0; !pUpPort && i < MOUSE_MAX_DEVICES; ++i)
566	{
567	if (mpDrv[i] && (mpDrv[i]->u32DevCaps & MOUSE_DEVCAP_ABSOLUTE))
568	pUpPort = mpDrv[i]->pUpPort;
569	}
570	}
571	if (!pUpPort)
572	return S_OK;
573
574	int vrc = pUpPort->pfnPutEventAbs(pUpPort, x, y, dz,
575	dw, fButtons);
576	if (RT_FAILURE(vrc))
577	return setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
578	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
579	vrc);
580	mfLastButtons = fButtons;
581
582	}
583	return S_OK;
584	}
585
586	HRESULT Mouse::i_reportMultiTouchEventToDevice(uint8_t cContacts,
587	const uint64_t *pau64Contacts,
588	bool fTouchScreen,
589	uint32_t u32ScanTime)
590	{
591	HRESULT hrc = S_OK;
592
593	int match = fTouchScreen ? MOUSE_DEVCAP_MT_ABSOLUTE : MOUSE_DEVCAP_MT_RELATIVE;
594	PPDMIMOUSEPORT pUpPort = NULL;
595	{
596	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
597
598	unsigned i;
599	for (i = 0; i < MOUSE_MAX_DEVICES; ++i)
600	{
601	if ( mpDrv[i]
602	&& (mpDrv[i]->u32DevCaps & match))
603	{
604	pUpPort = mpDrv[i]->pUpPort;
605	break;
606	}
607	}
608	}
609
610	if (pUpPort)
611	{
612	int vrc = pUpPort->pfnPutEventTouchScreen(pUpPort, cContacts, pau64Contacts, u32ScanTime);
613	if (RT_FAILURE(vrc))
614	hrc = setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
615	tr("Could not send the multi-touch event to the virtual device (%Rrc)"),
616	vrc);
617	}
618	else
619	{
620	hrc = E_UNEXPECTED;
621	}
622
623	return hrc;
624	}
625
626
627	/**
628	* Send an absolute position event to the VMM device.
629	* @note all calls out of this object are made with no locks held!
630	*
631	* @returns COM status code
632	*/
633	HRESULT Mouse::i_reportAbsEventToVMMDev(int32_t x, int32_t y, int32_t dz, int32_t dw, uint32_t fButtons)
634	{
635	VMMDevMouseInterface *pVMMDev = mParent->i_getVMMDevMouseInterface();
636	ComAssertRet(pVMMDev, E_FAIL);
637	PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
638	ComAssertRet(pVMMDevPort, E_FAIL);
639
640	if (x != mcLastX \|\| y != mcLastY \|\| dz \|\| dw \|\| fButtons != mfLastButtons)
641	{
642	int vrc = pVMMDevPort->pfnSetAbsoluteMouse(pVMMDevPort, x, y, dz, dw, fButtons);
643	if (RT_FAILURE(vrc))
644	return setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
645	tr("Could not send the mouse event to the virtual mouse (%Rrc)"),
646	vrc);
647	}
648	return S_OK;
649	}
650
651
652	/**
653	* Send an absolute pointer event to a pointing device (the VMM device if
654	* possible or whatever emulated absolute device seems best to us if not).
655	*
656	* @returns COM status code
657	*/
658	HRESULT Mouse::i_reportAbsEventToInputDevices(int32_t x, int32_t y, int32_t dz, int32_t dw, uint32_t fButtons,
659	bool fUsesVMMDevEvent)
660	{
661	HRESULT hrc = S_OK;
662	/** If we are using the VMMDev to report absolute position but without
663	* VMMDev IRQ support then we need to send a small "jiggle" to the emulated
664	* relative mouse device to alert the guest to changes. */
665	LONG cJiggle = 0;
666
667	if (i_vmmdevCanAbs())
668	{
669	/*
670	* Send the absolute mouse position to the VMM device.
671	*/
672	if (x != mcLastX \|\| y != mcLastY \|\| dz \|\| dw \|\| fButtons != mfLastButtons)
673	{
674	hrc = i_reportAbsEventToVMMDev(x, y, dz, dw, fButtons);
675	cJiggle = !fUsesVMMDevEvent;
676	}
677
678	/* If guest cannot yet read full mouse state from DevVMM (i.e.,
679	* only 'x' and 'y' coordinates will be read) we need to pass buttons
680	* state as well as horizontal and vertical wheel movement over ever-present PS/2
681	* emulated mouse device. */
682	if (!(mfVMMDevGuestCaps & VMMDEV_MOUSE_GUEST_USES_FULL_STATE_PROTOCOL))
683	hrc = i_reportRelEventToMouseDev(cJiggle, 0, dz, dw, fButtons);
684	}
685	else
686	hrc = i_reportAbsEventToMouseDev(x, y, dz, dw, fButtons);
687
688	mcLastX = x;
689	mcLastY = y;
690	mfLastButtons = fButtons;
691	return hrc;
692	}
693
694
695	/**
696	* Send an absolute position event to the display device.
697	* @note all calls out of this object are made with no locks held!
698	* @param x Cursor X position in pixels relative to the first screen, where
699	* (1, 1) is the upper left corner.
700	* @param y Cursor Y position in pixels relative to the first screen, where
701	* (1, 1) is the upper left corner.
702	*/
703	HRESULT Mouse::i_reportAbsEventToDisplayDevice(int32_t x, int32_t y)
704	{
705	DisplayMouseInterface *pDisplay = mParent->i_getDisplayMouseInterface();
706	ComAssertRet(pDisplay, E_FAIL);
707
708	if (x != mcLastX \|\| y != mcLastY)
709	{
710	pDisplay->i_reportHostCursorPosition(x - 1, y - 1, false);
711	}
712	return S_OK;
713	}
714
715
716	void Mouse::i_fireMouseEvent(bool fAbsolute, LONG x, LONG y, LONG dz, LONG dw,
717	LONG fButtons)
718	{
719	/* If mouse button is pressed, we generate new event, to avoid reusable events coalescing and thus
720	dropping key press events */
721	GuestMouseEventMode_T mode;
722	if (fAbsolute)
723	mode = GuestMouseEventMode_Absolute;
724	else
725	mode = GuestMouseEventMode_Relative;
726
727	if (fButtons != 0)
728	::FireGuestMouseEvent(mEventSource, mode, x, y, dz, dw, fButtons);
729	else
730	{
731	ComPtr<IEvent> ptrEvent;
732	mMouseEvent.getEvent(ptrEvent.asOutParam());
733	ReinitGuestMouseEvent(ptrEvent, mode, x, y, dz, dw, fButtons);
734	mMouseEvent.fire(0);
735	}
736	}
737
738	void Mouse::i_fireMultiTouchEvent(uint8_t cContacts,
739	const LONG64 *paContacts,
740	bool fTouchScreen,
741	uint32_t u32ScanTime)
742	{
743	com::SafeArray<SHORT> xPositions(cContacts);
744	com::SafeArray<SHORT> yPositions(cContacts);
745	com::SafeArray<USHORT> contactIds(cContacts);
746	com::SafeArray<USHORT> contactFlags(cContacts);
747
748	uint8_t i;
749	for (i = 0; i < cContacts; i++)
750	{
751	uint32_t u32Lo = RT_LO_U32(paContacts[i]);
752	uint32_t u32Hi = RT_HI_U32(paContacts[i]);
753	xPositions[i] = (int16_t)u32Lo;
754	yPositions[i] = (int16_t)(u32Lo >> 16);
755	contactIds[i] = RT_BYTE1(u32Hi);
756	contactFlags[i] = RT_BYTE2(u32Hi);
757	}
758
759	::FireGuestMultiTouchEvent(mEventSource, cContacts, ComSafeArrayAsInParam(xPositions), ComSafeArrayAsInParam(yPositions),
760	ComSafeArrayAsInParam(contactIds), ComSafeArrayAsInParam(contactFlags), fTouchScreen, u32ScanTime);
761	}
762
763	/**
764	* Send a relative mouse event to the guest.
765	* @note the VMMDev capability change is so that the guest knows we are sending
766	* real events over the PS/2 device and not dummy events to signal the
767	* arrival of new absolute pointer data
768	*
769	* @returns COM status code
770	* @param dx X movement.
771	* @param dy Y movement.
772	* @param dz Z movement.
773	* @param dw Mouse wheel movement.
774	* @param aButtonState The mouse button state.
775	*/
776	HRESULT Mouse::putMouseEvent(LONG dx, LONG dy, LONG dz, LONG dw,
777	LONG aButtonState)
778	{
779	LogRel3(("%s: dx=%d, dy=%d, dz=%d, dw=%d\n", __PRETTY_FUNCTION__,
780	dx, dy, dz, dw));
781
782	uint32_t fButtonsAdj = i_mouseButtonsToPDM(aButtonState);
783	/* Make sure that the guest knows that we are sending real movement
784	* events to the PS/2 device and not just dummy wake-up ones. */
785	i_updateVMMDevMouseCaps(0, VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE);
786	HRESULT hrc = i_reportRelEventToMouseDev(dx, dy, dz, dw, fButtonsAdj);
787
788	i_fireMouseEvent(false, dx, dy, dz, dw, aButtonState);
789
790	return hrc;
791	}
792
793	/**
794	* Convert an (X, Y) value pair in screen co-ordinates (starting from 1) to a
795	* value from VMMDEV_MOUSE_RANGE_MIN to VMMDEV_MOUSE_RANGE_MAX. Sets the
796	* optional validity value to false if the pair is not on an active screen and
797	* to true otherwise.
798	* @note since guests with recent versions of X.Org use a different method
799	* to everyone else to map the valuator value to a screen pixel (they
800	* multiply by the screen dimension, do a floating point divide by
801	* the valuator maximum and round the result, while everyone else
802	* does truncating integer operations) we adjust the value we send
803	* so that it maps to the right pixel both when the result is rounded
804	* and when it is truncated.
805	*
806	* @returns COM status value
807	*/
808	HRESULT Mouse::i_convertDisplayRes(LONG x, LONG y, int32_t pxAdj, int32_t pyAdj,
809	bool *pfValid)
810	{
811	AssertPtrReturn(pxAdj, E_POINTER);
812	AssertPtrReturn(pyAdj, E_POINTER);
813	AssertPtrNullReturn(pfValid, E_POINTER);
814	DisplayMouseInterface *pDisplay = mParent->i_getDisplayMouseInterface();
815	ComAssertRet(pDisplay, E_FAIL);
816	/** The amount to add to the result (multiplied by the screen width/height)
817	* to compensate for differences in guest methods for mapping back to
818	* pixels */
819	enum { ADJUST_RANGE = - 3 * VMMDEV_MOUSE_RANGE / 4 };
820
821	if (pfValid)
822	*pfValid = true;
823	if (!(mfVMMDevGuestCaps & VMMDEV_MOUSE_NEW_PROTOCOL) && !pDisplay->i_isInputMappingSet())
824	{
825	ULONG displayWidth, displayHeight;
826	ULONG ulDummy;
827	LONG lDummy;
828	/* Takes the display lock */
829	HRESULT hrc = pDisplay->i_getScreenResolution(0, &displayWidth,
830	&displayHeight, &ulDummy, &lDummy, &lDummy);
831	if (FAILED(hrc))
832	return hrc;
833
834	pxAdj = displayWidth ? (x VMMDEV_MOUSE_RANGE + ADJUST_RANGE)
835	/ (LONG) displayWidth: 0;
836	pyAdj = displayHeight ? (y VMMDEV_MOUSE_RANGE + ADJUST_RANGE)
837	/ (LONG) displayHeight: 0;
838	}
839	else
840	{
841	int32_t x1, y1, x2, y2;
842	/* Takes the display lock */
843	pDisplay->i_getFramebufferDimensions(&x1, &y1, &x2, &y2);
844	pxAdj = x1 < x2 ? ((x - x1) VMMDEV_MOUSE_RANGE + ADJUST_RANGE)
845	/ (x2 - x1) : 0;
846	pyAdj = y1 < y2 ? ((y - y1) VMMDEV_MOUSE_RANGE + ADJUST_RANGE)
847	/ (y2 - y1) : 0;
848	if ( *pxAdj < VMMDEV_MOUSE_RANGE_MIN
849	\|\| *pxAdj > VMMDEV_MOUSE_RANGE_MAX
850	\|\| *pyAdj < VMMDEV_MOUSE_RANGE_MIN
851	\|\| *pyAdj > VMMDEV_MOUSE_RANGE_MAX)
852	if (pfValid)
853	*pfValid = false;
854	}
855	return S_OK;
856	}
857
858
859	/**
860	* Send an absolute mouse event to the VM. This requires either VirtualBox-
861	* specific drivers installed in the guest or absolute pointing device
862	* emulation.
863	* @note the VMMDev capability change is so that the guest knows we are sending
864	* dummy events over the PS/2 device to signal the arrival of new
865	* absolute pointer data, and not pointer real movement data
866	* @note all calls out of this object are made with no locks held!
867	*
868	* @returns COM status code
869	* @param x X position (pixel), starting from 1
870	* @param y Y position (pixel), starting from 1
871	* @param dz Z movement
872	* @param dw mouse wheel movement
873	* @param aButtonState The mouse button state
874	*/
875	HRESULT Mouse::putMouseEventAbsolute(LONG x, LONG y, LONG dz, LONG dw,
876	LONG aButtonState)
877	{
878	LogRel3(("%s: x=%d, y=%d, dz=%d, dw=%d, fButtons=0x%x\n",
879	__PRETTY_FUNCTION__, x, y, dz, dw, aButtonState));
880
881	DisplayMouseInterface *pDisplay = mParent->i_getDisplayMouseInterface();
882	ComAssertRet(pDisplay, E_FAIL);
883	int32_t xAdj, yAdj;
884	uint32_t fButtonsAdj;
885	bool fValid;
886
887	/* If we are doing old-style (IRQ-less) absolute reporting to the VMM
888	* device then make sure the guest is aware of it, so that it knows to
889	* ignore relative movement on the PS/2 device. */
890	i_updateVMMDevMouseCaps(VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE, 0);
891	/* Detect out-of-range. */
892	if (x == 0x7FFFFFFF && y == 0x7FFFFFFF)
893	{
894	pDisplay->i_reportHostCursorPosition(0, 0, true);
895	return S_OK;
896	}
897	/* Detect "report-only" (-1, -1). This is not ideal, as in theory the
898	* front-end could be sending negative values relative to the primary
899	* screen. */
900	if (x == -1 && y == -1)
901	return S_OK;
902	/** @todo the front end should do this conversion to avoid races */
903	/** @note Or maybe not... races are pretty inherent in everything done in
904	* this object and not really bad as far as I can see. */
905	HRESULT hrc = i_convertDisplayRes(x, y, &xAdj, &yAdj, &fValid);
906	if (FAILED(hrc)) return hrc;
907
908	fButtonsAdj = i_mouseButtonsToPDM(aButtonState);
909	if (fValid)
910	{
911	hrc = i_reportAbsEventToInputDevices(xAdj, yAdj, dz, dw, fButtonsAdj,
912	RT_BOOL(mfVMMDevGuestCaps & VMMDEV_MOUSE_NEW_PROTOCOL));
913	if (FAILED(hrc)) return hrc;
914
915	i_fireMouseEvent(true, x, y, dz, dw, aButtonState);
916	}
917	hrc = i_reportAbsEventToDisplayDevice(x, y);
918
919	return hrc;
920	}
921
922	/**
923	* Send a multi-touch event. This requires multi-touch pointing device emulation.
924	* @note all calls out of this object are made with no locks held!
925	*
926	* @returns COM status code.
927	* @param aCount Number of contacts.
928	* @param aContacts Information about each contact.
929	* @param aIsTouchscreen Distinguishes between touchscreen and touchpad events.
930	* @param aScanTime Timestamp.
931	*/
932	HRESULT Mouse::putEventMultiTouch(LONG aCount,
933	const std::vector<LONG64> &aContacts,
934	BOOL aIsTouchscreen,
935	ULONG aScanTime)
936	{
937	LogRel3(("%s: aCount %d(actual %d), aScanTime %u\n",
938	__FUNCTION__, aCount, aContacts.size(), aScanTime));
939
940	HRESULT hrc = S_OK;
941
942	if ((LONG)aContacts.size() >= aCount)
943	{
944	const LONG64 *paContacts = aCount > 0? &aContacts.front(): NULL;
945
946	hrc = i_putEventMultiTouch(aCount, paContacts, aIsTouchscreen, aScanTime);
947	}
948	else
949	{
950	hrc = E_INVALIDARG;
951	}
952
953	return hrc;
954	}
955
956	/**
957	* Send a multi-touch event. Version for scripting languages.
958	*
959	* @returns COM status code.
960	* @param aCount Number of contacts.
961	* @param aContacts Information about each contact.
962	* @param aIsTouchscreen Distinguishes between touchscreen and touchpad events.
963	* @param aScanTime Timestamp.
964	*/
965	HRESULT Mouse::putEventMultiTouchString(LONG aCount,
966	const com::Utf8Str &aContacts,
967	BOOL aIsTouchscreen,
968	ULONG aScanTime)
969	{
970	/** @todo implement: convert the string to LONG64 array and call putEventMultiTouch. */
971	NOREF(aCount);
972	NOREF(aContacts);
973	NOREF(aIsTouchscreen);
974	NOREF(aScanTime);
975	return E_NOTIMPL;
976	}
977
978
979	// private methods
980	/////////////////////////////////////////////////////////////////////////////
981
982	/* Used by PutEventMultiTouch and PutEventMultiTouchString. */
983	HRESULT Mouse::i_putEventMultiTouch(LONG aCount,
984	const LONG64 *paContacts,
985	BOOL aIsTouchscreen,
986	ULONG aScanTime)
987	{
988	if (aCount >= 256)
989	return E_INVALIDARG;
990
991	HRESULT hrc = S_OK;
992
993	/* Touch events in the touchscreen variant are currently mapped to the
994	* primary monitor, because the emulated USB touchscreen device is
995	* associated with one (normally the primary) screen in the guest.
996	* In the future this could/should be extended to multi-screen support. */
997	ULONG uScreenId = 0;
998
999	ULONG cWidth = 0;
1000	ULONG cHeight = 0;
1001	LONG xOrigin = 0;
1002	LONG yOrigin = 0;
1003
1004	if (aIsTouchscreen)
1005	{
1006	DisplayMouseInterface *pDisplay = mParent->i_getDisplayMouseInterface();
1007	ComAssertRet(pDisplay, E_FAIL);
1008	ULONG cBPP = 0;
1009	hrc = pDisplay->i_getScreenResolution(uScreenId, &cWidth, &cHeight, &cBPP, &xOrigin, &yOrigin);
1010	NOREF(cBPP);
1011	ComAssertComRCRetRC(hrc);
1012	}
1013
1014	uint64_t* pau64Contacts = NULL;
1015	uint8_t cContacts = 0;
1016
1017	/* Deliver 0 contacts too, touch device may use this to reset the state. */
1018	if (aCount > 0)
1019	{
1020	/* Create a copy with converted coords. */
1021	pau64Contacts = (uint64_t )RTMemTmpAlloc(aCount sizeof(uint64_t));
1022	if (pau64Contacts)
1023	{
1024	if (aIsTouchscreen)
1025	{
1026	int32_t x1 = xOrigin;
1027	int32_t y1 = yOrigin;
1028	int32_t x2 = x1 + cWidth;
1029	int32_t y2 = y1 + cHeight;
1030
1031	LogRel3(("%s: screen [%d] %d,%d %d,%d\n",
1032	__FUNCTION__, uScreenId, x1, y1, x2, y2));
1033
1034	LONG i;
1035	for (i = 0; i < aCount; i++)
1036	{
1037	uint32_t u32Lo = RT_LO_U32(paContacts[i]);
1038	uint32_t u32Hi = RT_HI_U32(paContacts[i]);
1039	int32_t x = (int16_t)u32Lo;
1040	int32_t y = (int16_t)(u32Lo >> 16);
1041	uint8_t contactId = RT_BYTE1(u32Hi);
1042	bool fInContact = (RT_BYTE2(u32Hi) & 0x1) != 0;
1043	bool fInRange = (RT_BYTE2(u32Hi) & 0x2) != 0;
1044
1045	LogRel3(("%s: touchscreen [%d] %d,%d id %d, inContact %d, inRange %d\n",
1046	__FUNCTION__, i, x, y, contactId, fInContact, fInRange));
1047
1048	/* x1,y1 are inclusive and x2,y2 are exclusive,
1049	* while x,y start from 1 and are inclusive.
1050	*/
1051	if (x <= x1 \|\| x > x2 \|\| y <= y1 \|\| y > y2)
1052	{
1053	/* Out of range. Skip the contact. */
1054	continue;
1055	}
1056
1057	int32_t xAdj = x1 < x2? ((x - 1 - x1) * VMMDEV_MOUSE_RANGE) / (x2 - x1) : 0;
1058	int32_t yAdj = y1 < y2? ((y - 1 - y1) * VMMDEV_MOUSE_RANGE) / (y2 - y1) : 0;
1059
1060	bool fValid = ( xAdj >= VMMDEV_MOUSE_RANGE_MIN
1061	&& xAdj <= VMMDEV_MOUSE_RANGE_MAX
1062	&& yAdj >= VMMDEV_MOUSE_RANGE_MIN
1063	&& yAdj <= VMMDEV_MOUSE_RANGE_MAX);
1064
1065	if (fValid)
1066	{
1067	uint8_t fu8 = (uint8_t)( (fInContact? 0x01: 0x00)
1068	\| (fInRange? 0x02: 0x00));
1069	pau64Contacts[cContacts] = RT_MAKE_U64_FROM_U16((uint16_t)xAdj,
1070	(uint16_t)yAdj,
1071	RT_MAKE_U16(contactId, fu8),
1072	0);
1073	cContacts++;
1074	}
1075	}
1076	}
1077	else
1078	{
1079	LONG i;
1080	for (i = 0; i < aCount; i++)
1081	{
1082	uint32_t u32Lo = RT_LO_U32(paContacts[i]);
1083	uint32_t u32Hi = RT_HI_U32(paContacts[i]);
1084	uint16_t x = (uint16_t)u32Lo;
1085	uint16_t y = (uint16_t)(u32Lo >> 16);
1086	uint8_t contactId = RT_BYTE1(u32Hi);
1087	bool fInContact = (RT_BYTE2(u32Hi) & 0x1) != 0;
1088
1089	LogRel3(("%s: touchpad [%d] %#04x,%#04x id %d, inContact %d\n",
1090	__FUNCTION__, i, x, y, contactId, fInContact));
1091
1092	uint8_t fu8 = (uint8_t)(fInContact? 0x01: 0x00);
1093
1094	pau64Contacts[cContacts] = RT_MAKE_U64_FROM_U16(x, y,
1095	RT_MAKE_U16(contactId, fu8),
1096	0);
1097	cContacts++;
1098	}
1099	}
1100	}
1101	else
1102	{
1103	hrc = E_OUTOFMEMORY;
1104	}
1105	}
1106
1107	if (SUCCEEDED(hrc))
1108	{
1109	hrc = i_reportMultiTouchEventToDevice(cContacts, cContacts? pau64Contacts: NULL, !!aIsTouchscreen, (uint32_t)aScanTime);
1110
1111	/* Send the original contact information. */
1112	i_fireMultiTouchEvent(cContacts, cContacts? paContacts: NULL, !!aIsTouchscreen, (uint32_t)aScanTime);
1113	}
1114
1115	RTMemTmpFree(pau64Contacts);
1116
1117	return hrc;
1118	}
1119
1120
1121	/** Does the guest currently rely on the host to draw the mouse cursor or
1122	* can it switch to doing it itself in software? */
1123	bool Mouse::i_guestNeedsHostCursor(void)
1124	{
1125	return RT_BOOL(mfVMMDevGuestCaps & VMMDEV_MOUSE_GUEST_NEEDS_HOST_CURSOR);
1126	}
1127
1128
1129	/**
1130	* Gets the combined capabilities of all currently enabled devices.
1131	*
1132	* @returns Combination of MOUSE_DEVCAP_XXX
1133	*/
1134	uint32_t Mouse::i_getDeviceCaps(void)
1135	{
1136	uint32_t fCaps = 0;
1137	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
1138	for (unsigned i = 0; i < MOUSE_MAX_DEVICES; ++i)
1139	if (mpDrv[i])
1140	fCaps \|= mpDrv[i]->u32DevCaps;
1141	return fCaps;
1142	}
1143
1144
1145	/** Does the VMM device currently support absolute reporting? */
1146	bool Mouse::i_vmmdevCanAbs(void)
1147	{
1148	/* This requires the VMMDev cap and a relative device, which supposedly
1149	consumes these. As seen in @bugref{10285} this isn't quite as clear cut. */
1150	return (mfVMMDevGuestCaps & VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE)
1151	&& (i_getDeviceCaps() & MOUSE_DEVCAP_RELATIVE);
1152	}
1153
1154
1155	/** Does any device currently support absolute reporting w/o help from VMMDev? */
1156	bool Mouse::i_deviceCanAbs(void)
1157	{
1158	return RT_BOOL(i_getDeviceCaps() & MOUSE_DEVCAP_ABSOLUTE);
1159	}
1160
1161
1162	/** Can we currently send relative events to the guest? */
1163	bool Mouse::i_supportsRel(void)
1164	{
1165	return RT_BOOL(i_getDeviceCaps() & MOUSE_DEVCAP_RELATIVE);
1166	}
1167
1168
1169	/** Can we currently send absolute events to the guest (including via VMMDev)? */
1170	bool Mouse::i_supportsAbs(uint32_t fCaps) const
1171	{
1172	return (fCaps & MOUSE_DEVCAP_ABSOLUTE)
1173	\|\| /* inlined i_vmmdevCanAbs() to avoid unnecessary i_getDeviceCaps call: */
1174	( (mfVMMDevGuestCaps & VMMDEV_MOUSE_GUEST_CAN_ABSOLUTE)
1175	&& (fCaps & MOUSE_DEVCAP_RELATIVE));
1176	}
1177
1178
1179	/** Can we currently send absolute events to the guest? */
1180	bool Mouse::i_supportsAbs(void)
1181	{
1182	return Mouse::i_supportsAbs(i_getDeviceCaps());
1183	}
1184
1185
1186	/** Can we currently send multi-touch events (touchscreen variant) to the guest? */
1187	bool Mouse::i_supportsTS(void)
1188	{
1189	return RT_BOOL(i_getDeviceCaps() & MOUSE_DEVCAP_MT_ABSOLUTE);
1190	}
1191
1192
1193	/** Can we currently send multi-touch events (touchpad variant) to the guest? */
1194	bool Mouse::i_supportsTP(void)
1195	{
1196	return RT_BOOL(i_getDeviceCaps() & MOUSE_DEVCAP_MT_RELATIVE);
1197	}
1198
1199
1200	/** Check what sort of reporting can be done using the devices currently
1201	* enabled (including the VMM device) and notify the guest and the front-end.
1202	*/
1203	void Mouse::i_sendMouseCapsNotifications(void)
1204	{
1205	bool fRelDev, fTSDev, fTPDev, fCanAbs, fNeedsHostCursor;
1206	{
1207	AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
1208
1209	uint32_t const fCaps = i_getDeviceCaps();
1210	fRelDev = RT_BOOL(fCaps & MOUSE_DEVCAP_RELATIVE);
1211	fTSDev = RT_BOOL(fCaps & MOUSE_DEVCAP_MT_ABSOLUTE);
1212	fTPDev = RT_BOOL(fCaps & MOUSE_DEVCAP_MT_RELATIVE);
1213	fCanAbs = i_supportsAbs(fCaps);
1214	fNeedsHostCursor = i_guestNeedsHostCursor();
1215	}
1216	mParent->i_onMouseCapabilityChange(fCanAbs, fRelDev, fTSDev, fTPDev, fNeedsHostCursor);
1217	}
1218
1219
1220	/**
1221	* @interface_method_impl{PDMIMOUSECONNECTOR,pfnReportModes}
1222	*/
1223	DECLCALLBACK(void) Mouse::i_mouseReportModes(PPDMIMOUSECONNECTOR pInterface, bool fRelative,
1224	bool fAbsolute, bool fMTAbsolute, bool fMTRelative)
1225	{
1226	PDRVMAINMOUSE pDrv = RT_FROM_MEMBER(pInterface, DRVMAINMOUSE, IConnector);
1227	if (fRelative)
1228	pDrv->u32DevCaps \|= MOUSE_DEVCAP_RELATIVE;
1229	else
1230	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_RELATIVE;
1231	if (fAbsolute)
1232	pDrv->u32DevCaps \|= MOUSE_DEVCAP_ABSOLUTE;
1233	else
1234	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_ABSOLUTE;
1235	if (fMTAbsolute)
1236	pDrv->u32DevCaps \|= MOUSE_DEVCAP_MT_ABSOLUTE;
1237	else
1238	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_MT_ABSOLUTE;
1239	if (fMTRelative)
1240	pDrv->u32DevCaps \|= MOUSE_DEVCAP_MT_RELATIVE;
1241	else
1242	pDrv->u32DevCaps &= ~MOUSE_DEVCAP_MT_RELATIVE;
1243
1244	pDrv->pMouse->i_sendMouseCapsNotifications();
1245	}
1246
1247
1248	/**
1249	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
1250	*/
1251	DECLCALLBACK(void ) Mouse::i_drvQueryInterface(PPDMIBASE pInterface, const char pszIID)
1252	{
1253	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
1254	PDRVMAINMOUSE pDrv = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
1255
1256	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
1257	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUSECONNECTOR, &pDrv->IConnector);
1258	return NULL;
1259	}
1260
1261
1262	/**
1263	* Destruct a mouse driver instance.
1264	*
1265	* @returns VBox status code.
1266	* @param pDrvIns The driver instance data.
1267	*/
1268	DECLCALLBACK(void) Mouse::i_drvDestruct(PPDMDRVINS pDrvIns)
1269	{
1270	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
1271	PDRVMAINMOUSE pThis = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
1272	LogFlow(("Mouse::drvDestruct: iInstance=%d\n", pDrvIns->iInstance));
1273
1274	if (pThis->pMouse)
1275	{
1276	AutoWriteLock mouseLock(pThis->pMouse COMMA_LOCKVAL_SRC_POS);
1277	for (unsigned cDev = 0; cDev < MOUSE_MAX_DEVICES; ++cDev)
1278	if (pThis->pMouse->mpDrv[cDev] == pThis)
1279	{
1280	pThis->pMouse->mpDrv[cDev] = NULL;
1281	break;
1282	}
1283	}
1284	}
1285
1286
1287	/**
1288	* Construct a mouse driver instance.
1289	*
1290	* @copydoc FNPDMDRVCONSTRUCT
1291	*/
1292	DECLCALLBACK(int) Mouse::i_drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
1293	{
1294	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
1295	RT_NOREF(fFlags, pCfg);
1296	PDRVMAINMOUSE pThis = PDMINS_2_DATA(pDrvIns, PDRVMAINMOUSE);
1297	LogFlow(("drvMainMouse_Construct: iInstance=%d\n", pDrvIns->iInstance));
1298
1299	/*
1300	* Validate configuration.
1301	*/
1302	PDMDRV_VALIDATE_CONFIG_RETURN(pDrvIns, "", "");
1303	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
1304	("Configuration error: Not possible to attach anything to this driver!\n"),
1305	VERR_PDM_DRVINS_NO_ATTACH);
1306
1307	/*
1308	* IBase.
1309	*/
1310	pDrvIns->IBase.pfnQueryInterface = Mouse::i_drvQueryInterface;
1311
1312	pThis->IConnector.pfnReportModes = Mouse::i_mouseReportModes;
1313
1314	/*
1315	* Get the IMousePort interface of the above driver/device.
1316	*/
1317	pThis->pUpPort = (PPDMIMOUSEPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMIMOUSEPORT_IID);
1318	if (!pThis->pUpPort)
1319	{
1320	AssertMsgFailed(("Configuration error: No mouse port interface above!\n"));
1321	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1322	}
1323
1324	/*
1325	* Get the Mouse object pointer and update the mpDrv member.
1326	*/
1327	com::Guid uuid(COM_IIDOF(IMouse));
1328	IMouse pIMouse = (IMouse )PDMDrvHlpQueryGenericUserObject(pDrvIns, uuid.raw());
1329	if (!pIMouse)
1330	{
1331	AssertMsgFailed(("Configuration error: No/bad Mouse object!\n"));
1332	return VERR_NOT_FOUND;
1333	}
1334	pThis->pMouse = static_cast<Mouse *>(pIMouse);
1335
1336	unsigned cDev;
1337	{
1338	AutoWriteLock mouseLock(pThis->pMouse COMMA_LOCKVAL_SRC_POS);
1339
1340	for (cDev = 0; cDev < MOUSE_MAX_DEVICES; ++cDev)
1341	if (!pThis->pMouse->mpDrv[cDev])
1342	{
1343	pThis->pMouse->mpDrv[cDev] = pThis;
1344	break;
1345	}
1346	}
1347	if (cDev == MOUSE_MAX_DEVICES)
1348	return VERR_NO_MORE_HANDLES;
1349
1350	return VINF_SUCCESS;
1351	}
1352
1353
1354	/**
1355	* Main mouse driver registration record.
1356	*/
1357	const PDMDRVREG Mouse::DrvReg =
1358	{
1359	/* u32Version */
1360	PDM_DRVREG_VERSION,
1361	/* szName */
1362	"MainMouse",
1363	/* szRCMod */
1364	"",
1365	/* szR0Mod */
1366	"",
1367	/* pszDescription */
1368	"Main mouse driver (Main as in the API).",
1369	/* fFlags */
1370	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
1371	/* fClass. */
1372	PDM_DRVREG_CLASS_MOUSE,
1373	/* cMaxInstances */
1374	~0U,
1375	/* cbInstance */
1376	sizeof(DRVMAINMOUSE),
1377	/* pfnConstruct */
1378	Mouse::i_drvConstruct,
1379	/* pfnDestruct */
1380	Mouse::i_drvDestruct,
1381	/* pfnRelocate */
1382	NULL,
1383	/* pfnIOCtl */
1384	NULL,
1385	/* pfnPowerOn */
1386	NULL,
1387	/* pfnReset */
1388	NULL,
1389	/* pfnSuspend */
1390	NULL,
1391	/* pfnResume */
1392	NULL,
1393	/* pfnAttach */
1394	NULL,
1395	/* pfnDetach */
1396	NULL,
1397	/* pfnPowerOff */
1398	NULL,
1399	/* pfnSoftReset */
1400	NULL,
1401	/* u32EndVersion */
1402	PDM_DRVREG_VERSION
1403	};
1404	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/src-client/MouseImpl.cpp@ 98100

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