DisplayImpl.cpp@ 26173

Last change on this file since 26173 was 26173, checked in by vboxsync, 15 years ago
PDM: s/pCfgHandle/pCfg/g - part 2.
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1	/* $Id: DisplayImpl.cpp 26173 2010-02-02 21:11:09Z vboxsync $ */
2	/** @file
3	* VirtualBox COM class implementation
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	#include "DisplayImpl.h"
23	#include "ConsoleImpl.h"
24	#include "ConsoleVRDPServer.h"
25	#include "VMMDev.h"
26
27	#include "AutoCaller.h"
28	#include "Logging.h"
29
30	#include <iprt/semaphore.h>
31	#include <iprt/thread.h>
32	#include <iprt/asm.h>
33
34	#include <VBox/pdmdrv.h>
35	#ifdef DEBUG /* for VM_ASSERT_EMT(). */
36	# include <VBox/vm.h>
37	#endif
38
39	#ifdef VBOX_WITH_VIDEOHWACCEL
40	# include <VBox/VBoxVideo.h>
41	#endif
42
43	#include <VBox/com/array.h>
44	#include <png.h>
45
46	/**
47	* Display driver instance data.
48	*
49	* @implements PDMIDISPLAYCONNECTOR
50	*/
51	typedef struct DRVMAINDISPLAY
52	{
53	/** Pointer to the display object. */
54	Display *pDisplay;
55	/** Pointer to the driver instance structure. */
56	PPDMDRVINS pDrvIns;
57	/** Pointer to the keyboard port interface of the driver/device above us. */
58	PPDMIDISPLAYPORT pUpPort;
59	/** Our display connector interface. */
60	PDMIDISPLAYCONNECTOR IConnector;
61	#if defined(VBOX_WITH_VIDEOHWACCEL)
62	/** VBVA callbacks */
63	PPDMIDISPLAYVBVACALLBACKS pVBVACallbacks;
64	#endif
65	} DRVMAINDISPLAY, *PDRVMAINDISPLAY;
66
67	/** Converts PDMIDISPLAYCONNECTOR pointer to a DRVMAINDISPLAY pointer. */
68	#define PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface) RT_FROM_MEMBER(pInterface, DRVMAINDISPLAY, IConnector)
69
70	#ifdef DEBUG_sunlover
71	static STAMPROFILE StatDisplayRefresh;
72	static int stam = 0;
73	#endif /* DEBUG_sunlover */
74
75	// constructor / destructor
76	/////////////////////////////////////////////////////////////////////////////
77
78	DEFINE_EMPTY_CTOR_DTOR(Display)
79
80	HRESULT Display::FinalConstruct()
81	{
82	mpVbvaMemory = NULL;
83	mfVideoAccelEnabled = false;
84	mfVideoAccelVRDP = false;
85	mfu32SupportedOrders = 0;
86	mcVideoAccelVRDPRefs = 0;
87
88	mpPendingVbvaMemory = NULL;
89	mfPendingVideoAccelEnable = false;
90
91	mfMachineRunning = false;
92
93	mpu8VbvaPartial = NULL;
94	mcbVbvaPartial = 0;
95
96	mpDrv = NULL;
97	mpVMMDev = NULL;
98	mfVMMDevInited = false;
99
100	mLastAddress = NULL;
101	mLastBytesPerLine = 0;
102	mLastBitsPerPixel = 0,
103	mLastWidth = 0;
104	mLastHeight = 0;
105
106	#ifdef VBOX_WITH_OLD_VBVA_LOCK
107	int rc = RTCritSectInit (&mVBVALock);
108	AssertRC (rc);
109	mfu32PendingVideoAccelDisable = false;
110	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
111
112	#ifdef VBOX_WITH_HGSMI
113	mu32UpdateVBVAFlags = 0;
114	#endif
115
116	return S_OK;
117	}
118
119	void Display::FinalRelease()
120	{
121	uninit();
122
123	#ifdef VBOX_WITH_OLD_VBVA_LOCK
124	if (RTCritSectIsInitialized (&mVBVALock))
125	{
126	RTCritSectDelete (&mVBVALock);
127	memset (&mVBVALock, 0, sizeof (mVBVALock));
128	}
129	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
130	}
131
132	// public initializer/uninitializer for internal purposes only
133	/////////////////////////////////////////////////////////////////////////////
134
135	#define sSSMDisplayScreenshotVer 0x00010001
136	#define sSSMDisplayVer 0x00010001
137
138	#define kMaxSizePNG 1024
139	#define kMaxSizeThumbnail 64
140
141	/**
142	* Save thumbnail and screenshot of the guest screen.
143	*/
144	static int displayMakeThumbnail(uint8_t *pu8Data, uint32_t cx, uint32_t cy,
145	uint8_t *ppu8Thumbnail, uint32_t pcbThumbnail, uint32_t pcxThumbnail, uint32_t pcyThumbnail)
146	{
147	int rc = VINF_SUCCESS;
148
149	uint8_t *pu8Thumbnail = NULL;
150	uint32_t cbThumbnail = 0;
151	uint32_t cxThumbnail = 0;
152	uint32_t cyThumbnail = 0;
153
154	if (cx > cy)
155	{
156	cxThumbnail = kMaxSizeThumbnail;
157	cyThumbnail = (kMaxSizeThumbnail * cy) / cx;
158	}
159	else
160	{
161	cyThumbnail = kMaxSizeThumbnail;
162	cxThumbnail = (kMaxSizeThumbnail * cx) / cy;
163	}
164
165	LogFlowFunc(("%dx%d -> %dx%d\n", cx, cy, cxThumbnail, cyThumbnail));
166
167	cbThumbnail = cxThumbnail * 4 * cyThumbnail;
168	pu8Thumbnail = (uint8_t *)RTMemAlloc(cbThumbnail);
169
170	if (pu8Thumbnail)
171	{
172	uint8_t *dst = pu8Thumbnail;
173	uint8_t *src = pu8Data;
174	int dstX = 0;
175	int dstY = 0;
176	int srcX = 0;
177	int srcY = 0;
178	int dstW = cxThumbnail;
179	int dstH = cyThumbnail;
180	int srcW = cx;
181	int srcH = cy;
182	gdImageCopyResampled (dst,
183	src,
184	dstX, dstY,
185	srcX, srcY,
186	dstW, dstH, srcW, srcH);
187
188	*ppu8Thumbnail = pu8Thumbnail;
189	*pcbThumbnail = cbThumbnail;
190	*pcxThumbnail = cxThumbnail;
191	*pcyThumbnail = cyThumbnail;
192	}
193	else
194	{
195	rc = VERR_NO_MEMORY;
196	}
197
198	return rc;
199	}
200
201	typedef struct PNGWriteCtx
202	{
203	uint8_t *pu8PNG;
204	uint32_t cbPNG;
205	uint32_t cbAllocated;
206	int rc;
207	} PNGWriteCtx;
208
209	static void PNGAPI png_write_data_fn(png_structp png_ptr, png_bytep p, png_size_t cb)
210	{
211	PNGWriteCtx pCtx = (PNGWriteCtx )png_get_io_ptr(png_ptr);
212	LogFlowFunc(("png_ptr %p, p %p, cb %d, pCtx %p\n", png_ptr, p, cb, pCtx));
213
214	if (pCtx && RT_SUCCESS(pCtx->rc))
215	{
216	if (pCtx->cbAllocated - pCtx->cbPNG < cb)
217	{
218	uint32_t cbNew = pCtx->cbPNG + (uint32_t)cb;
219	AssertReturnVoidStmt(cbNew > pCtx->cbPNG && cbNew <= _1G, pCtx->rc = VERR_TOO_MUCH_DATA);
220	cbNew = RT_ALIGN_32(cbNew, 4096) + 4096;
221
222	void *pNew = RTMemRealloc(pCtx->pu8PNG, cbNew);
223	if (!pNew)
224	{
225	pCtx->rc = VERR_NO_MEMORY;
226	return;
227	}
228
229	pCtx->pu8PNG = (uint8_t *)pNew;
230	pCtx->cbAllocated = cbNew;
231	}
232
233	memcpy(pCtx->pu8PNG + pCtx->cbPNG, p, cb);
234	pCtx->cbPNG += (uint32_t)cb;
235	}
236	}
237
238	static void PNGAPI png_output_flush_fn(png_structp png_ptr)
239	{
240	NOREF(png_ptr);
241	/* Do nothing. */
242	}
243
244	static int displayMakePNG(uint8_t *pu8Data, uint32_t cx, uint32_t cy,
245	uint8_t *ppu8PNG, uint32_t pcbPNG, uint32_t pcxPNG, uint32_t pcyPNG)
246	{
247	int rc = VINF_SUCCESS;
248
249	uint8_t * volatile pu8Bitmap = NULL; /* gcc setjmp warning */
250	uint32_t volatile cbBitmap = 0; /* gcc setjmp warning */
251	uint32_t volatile cxBitmap = 0; /* gcc setjmp warning */
252	uint32_t volatile cyBitmap = 0; /* gcc setjmp warning */
253
254	if (cx < kMaxSizePNG && cy < kMaxSizePNG)
255	{
256	/* Save unscaled screenshot. */
257	pu8Bitmap = pu8Data;
258	cbBitmap = cx * 4 * cy;
259	cxBitmap = cx;
260	cyBitmap = cy;
261	}
262	else
263	{
264	/* Large screenshot, scale. */
265	if (cx > cy)
266	{
267	cxBitmap = kMaxSizePNG;
268	cyBitmap = (kMaxSizePNG * cy) / cx;
269	}
270	else
271	{
272	cyBitmap = kMaxSizePNG;
273	cxBitmap = (kMaxSizePNG * cx) / cy;
274	}
275
276	cbBitmap = cxBitmap * 4 * cyBitmap;
277
278	pu8Bitmap = (uint8_t *)RTMemAlloc(cbBitmap);
279
280	if (pu8Bitmap)
281	{
282	uint8_t *dst = pu8Bitmap;
283	uint8_t *src = pu8Data;
284	int dstX = 0;
285	int dstY = 0;
286	int srcX = 0;
287	int srcY = 0;
288	int dstW = cxBitmap;
289	int dstH = cyBitmap;
290	int srcW = cx;
291	int srcH = cy;
292	gdImageCopyResampled (dst,
293	src,
294	dstX, dstY,
295	srcX, srcY,
296	dstW, dstH, srcW, srcH);
297	}
298	else
299	{
300	rc = VERR_NO_MEMORY;
301	}
302	}
303
304	LogFlowFunc(("%dx%d -> %dx%d\n", cx, cy, cxBitmap, cyBitmap));
305
306	if (RT_SUCCESS(rc))
307	{
308	png_bytep row_pointers = (png_bytep )RTMemAlloc(cyBitmap * sizeof(png_bytep));
309	if (row_pointers)
310	{
311	png_infop info_ptr = NULL;
312	png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
313	(png_voidp)NULL, /* error/warning context pointer */
314	(png_error_ptr)NULL, /* error function */
315	(png_error_ptr)NULL /* warning function */);
316	if (png_ptr)
317	{
318	info_ptr = png_create_info_struct(png_ptr);
319	if (info_ptr)
320	{
321	if (!setjmp(png_jmpbuf(png_ptr)))
322	{
323	PNGWriteCtx ctx;
324	ctx.pu8PNG = NULL;
325	ctx.cbPNG = 0;
326	ctx.cbAllocated = 0;
327	ctx.rc = VINF_SUCCESS;
328
329	png_set_write_fn(png_ptr,
330	(voidp)&ctx,
331	png_write_data_fn,
332	png_output_flush_fn);
333
334	png_set_IHDR(png_ptr, info_ptr,
335	cxBitmap, cyBitmap,
336	8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
337	PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
338
339	png_bytep row_pointer = (png_bytep)pu8Bitmap;
340	unsigned i = 0;
341	for (; i < cyBitmap; i++, row_pointer += cxBitmap * 4)
342	{
343	row_pointers[i] = row_pointer;
344	}
345	png_set_rows(png_ptr, info_ptr, &row_pointers[0]);
346
347	png_write_info(png_ptr, info_ptr);
348	png_set_filler(png_ptr, 0, PNG_FILLER_AFTER);
349	png_set_bgr(png_ptr);
350
351	if (info_ptr->valid & PNG_INFO_IDAT)
352	png_write_image(png_ptr, info_ptr->row_pointers);
353
354	png_write_end(png_ptr, info_ptr);
355
356	rc = ctx.rc;
357
358	if (RT_SUCCESS(rc))
359	{
360	*ppu8PNG = ctx.pu8PNG;
361	*pcbPNG = ctx.cbPNG;
362	*pcxPNG = cxBitmap;
363	*pcyPNG = cyBitmap;
364	LogFlowFunc(("PNG %d bytes, bitmap %d bytes\n", ctx.cbPNG, cbBitmap));
365	}
366	}
367	else
368	{
369	rc = VERR_GENERAL_FAILURE; /* Something within libpng. */
370	}
371	}
372	else
373	{
374	rc = VERR_NO_MEMORY;
375	}
376
377	png_destroy_write_struct(&png_ptr, info_ptr ? &info_ptr
378	: (png_infopp)NULL);
379	}
380	else
381	{
382	rc = VERR_NO_MEMORY;
383	}
384
385	RTMemFree(row_pointers);
386	}
387	else
388	{
389	rc = VERR_NO_MEMORY;
390	}
391	}
392
393	if (pu8Bitmap && pu8Bitmap != pu8Data)
394	{
395	RTMemFree(pu8Bitmap);
396	}
397
398	return rc;
399
400	}
401
402	DECLCALLBACK(void)
403	Display::displaySSMSaveScreenshot(PSSMHANDLE pSSM, void *pvUser)
404	{
405	Display that = static_cast<Display>(pvUser);
406
407	/* 32bpp small RGB image. */
408	uint8_t *pu8Thumbnail = NULL;
409	uint32_t cbThumbnail = 0;
410	uint32_t cxThumbnail = 0;
411	uint32_t cyThumbnail = 0;
412
413	/* PNG screenshot. */
414	uint8_t *pu8PNG = NULL;
415	uint32_t cbPNG = 0;
416	uint32_t cxPNG = 0;
417	uint32_t cyPNG = 0;
418
419	Console::SafeVMPtr pVM (that->mParent);
420	if (SUCCEEDED(pVM.rc()))
421	{
422	/* Query RGB bitmap. */
423	uint8_t *pu8Data = NULL;
424	size_t cbData = 0;
425	uint32_t cx = 0;
426	uint32_t cy = 0;
427
428	/* SSM code is executed on EMT(0), therefore no need to use VMR3ReqCallWait. */
429	#ifdef VBOX_WITH_OLD_VBVA_LOCK
430	int rc = Display::displayTakeScreenshotEMT(that, &pu8Data, &cbData, &cx, &cy);
431	#else
432	int rc = that->mpDrv->pUpPort->pfnTakeScreenshot (that->mpDrv->pUpPort, &pu8Data, &cbData, &cx, &cy);
433	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
434
435	if (RT_SUCCESS(rc))
436	{
437	/* Prepare a small thumbnail and a PNG screenshot. */
438	displayMakeThumbnail(pu8Data, cx, cy, &pu8Thumbnail, &cbThumbnail, &cxThumbnail, &cyThumbnail);
439	displayMakePNG(pu8Data, cx, cy, &pu8PNG, &cbPNG, &cxPNG, &cyPNG);
440
441	/* This can be called from any thread. */
442	that->mpDrv->pUpPort->pfnFreeScreenshot (that->mpDrv->pUpPort, pu8Data);
443	}
444	}
445	else
446	{
447	LogFunc(("Failed to get VM pointer 0x%x\n", pVM.rc()));
448	}
449
450	/* Regardless of rc, save what is available:
451	* Data format:
452	* uint32_t cBlocks;
453	* [blocks]
454	*
455	* Each block is:
456	* uint32_t cbBlock; if 0 - no 'block data'.
457	* uint32_t typeOfBlock; 0 - 32bpp RGB bitmap, 1 - PNG, ignored if 'cbBlock' is 0.
458	* [block data]
459	*
460	* Block data for bitmap and PNG:
461	* uint32_t cx;
462	* uint32_t cy;
463	* [image data]
464	*/
465	SSMR3PutU32(pSSM, 2); /* Write thumbnail and PNG screenshot. */
466
467	/* First block. */
468	SSMR3PutU32(pSSM, cbThumbnail + 2 * sizeof (uint32_t));
469	SSMR3PutU32(pSSM, 0); /* Block type: thumbnail. */
470
471	if (cbThumbnail)
472	{
473	SSMR3PutU32(pSSM, cxThumbnail);
474	SSMR3PutU32(pSSM, cyThumbnail);
475	SSMR3PutMem(pSSM, pu8Thumbnail, cbThumbnail);
476	}
477
478	/* Second block. */
479	SSMR3PutU32(pSSM, cbPNG + 2 * sizeof (uint32_t));
480	SSMR3PutU32(pSSM, 1); /* Block type: png. */
481
482	if (cbPNG)
483	{
484	SSMR3PutU32(pSSM, cxPNG);
485	SSMR3PutU32(pSSM, cyPNG);
486	SSMR3PutMem(pSSM, pu8PNG, cbPNG);
487	}
488
489	RTMemFree(pu8PNG);
490	RTMemFree(pu8Thumbnail);
491	}
492
493	DECLCALLBACK(int)
494	Display::displaySSMLoadScreenshot(PSSMHANDLE pSSM, void *pvUser, uint32_t uVersion, uint32_t uPass)
495	{
496	Display that = static_cast<Display>(pvUser);
497
498	if (uVersion != sSSMDisplayScreenshotVer)
499	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
500	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
501
502	/* Skip data. */
503	uint32_t cBlocks;
504	int rc = SSMR3GetU32(pSSM, &cBlocks);
505	AssertRCReturn(rc, rc);
506
507	for (uint32_t i = 0; i < cBlocks; i++)
508	{
509	uint32_t cbBlock;
510	rc = SSMR3GetU32(pSSM, &cbBlock);
511	AssertRCBreak(rc);
512
513	uint32_t typeOfBlock;
514	rc = SSMR3GetU32(pSSM, &typeOfBlock);
515	AssertRCBreak(rc);
516
517	LogFlowFunc(("[%d] type %d, size %d bytes\n", i, typeOfBlock, cbBlock));
518
519	if (cbBlock != 0)
520	{
521	rc = SSMR3Skip(pSSM, cbBlock);
522	AssertRCBreak(rc);
523	}
524	}
525
526	return rc;
527	}
528
529	/**
530	* Save/Load some important guest state
531	*/
532	DECLCALLBACK(void)
533	Display::displaySSMSave(PSSMHANDLE pSSM, void *pvUser)
534	{
535	Display that = static_cast<Display>(pvUser);
536
537	SSMR3PutU32(pSSM, that->mcMonitors);
538	for (unsigned i = 0; i < that->mcMonitors; i++)
539	{
540	SSMR3PutU32(pSSM, that->maFramebuffers[i].u32Offset);
541	SSMR3PutU32(pSSM, that->maFramebuffers[i].u32MaxFramebufferSize);
542	SSMR3PutU32(pSSM, that->maFramebuffers[i].u32InformationSize);
543	}
544	}
545
546	DECLCALLBACK(int)
547	Display::displaySSMLoad(PSSMHANDLE pSSM, void *pvUser, uint32_t uVersion, uint32_t uPass)
548	{
549	Display that = static_cast<Display>(pvUser);
550
551	if (uVersion != sSSMDisplayVer)
552	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
553	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
554
555	uint32_t cMonitors;
556	int rc = SSMR3GetU32(pSSM, &cMonitors);
557	if (cMonitors != that->mcMonitors)
558	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Number of monitors changed (%d->%d)!"), cMonitors, that->mcMonitors);
559
560	for (uint32_t i = 0; i < cMonitors; i++)
561	{
562	SSMR3GetU32(pSSM, &that->maFramebuffers[i].u32Offset);
563	SSMR3GetU32(pSSM, &that->maFramebuffers[i].u32MaxFramebufferSize);
564	SSMR3GetU32(pSSM, &that->maFramebuffers[i].u32InformationSize);
565	}
566
567	return VINF_SUCCESS;
568	}
569
570	/**
571	* Initializes the display object.
572	*
573	* @returns COM result indicator
574	* @param parent handle of our parent object
575	* @param qemuConsoleData address of common console data structure
576	*/
577	HRESULT Display::init (Console *aParent)
578	{
579	LogFlowThisFunc(("aParent=%p\n", aParent));
580
581	ComAssertRet (aParent, E_INVALIDARG);
582
583	/* Enclose the state transition NotReady->InInit->Ready */
584	AutoInitSpan autoInitSpan(this);
585	AssertReturn(autoInitSpan.isOk(), E_FAIL);
586
587	unconst(mParent) = aParent;
588
589	// by default, we have an internal framebuffer which is
590	// NULL, i.e. a black hole for no display output
591	mFramebufferOpened = false;
592
593	ULONG ul;
594	mParent->machine()->COMGETTER(MonitorCount)(&ul);
595	mcMonitors = ul;
596
597	for (ul = 0; ul < mcMonitors; ul++)
598	{
599	maFramebuffers[ul].u32Offset = 0;
600	maFramebuffers[ul].u32MaxFramebufferSize = 0;
601	maFramebuffers[ul].u32InformationSize = 0;
602
603	maFramebuffers[ul].pFramebuffer = NULL;
604
605	maFramebuffers[ul].xOrigin = 0;
606	maFramebuffers[ul].yOrigin = 0;
607
608	maFramebuffers[ul].w = 0;
609	maFramebuffers[ul].h = 0;
610
611	maFramebuffers[ul].pHostEvents = NULL;
612
613	maFramebuffers[ul].u32ResizeStatus = ResizeStatus_Void;
614
615	maFramebuffers[ul].fDefaultFormat = false;
616
617	memset (&maFramebuffers[ul].dirtyRect, 0 , sizeof (maFramebuffers[ul].dirtyRect));
618	memset (&maFramebuffers[ul].pendingResize, 0 , sizeof (maFramebuffers[ul].pendingResize));
619	#ifdef VBOX_WITH_HGSMI
620	maFramebuffers[ul].fVBVAEnabled = false;
621	maFramebuffers[ul].cVBVASkipUpdate = 0;
622	memset (&maFramebuffers[ul].vbvaSkippedRect, 0, sizeof (maFramebuffers[ul].vbvaSkippedRect));
623	maFramebuffers[ul].pVBVAHostFlags = NULL;
624	#endif /* VBOX_WITH_HGSMI */
625	}
626
627	mParent->RegisterCallback (this);
628
629	/* Confirm a successful initialization */
630	autoInitSpan.setSucceeded();
631
632	return S_OK;
633	}
634
635	/**
636	* Uninitializes the instance and sets the ready flag to FALSE.
637	* Called either from FinalRelease() or by the parent when it gets destroyed.
638	*/
639	void Display::uninit()
640	{
641	LogFlowThisFunc(("\n"));
642
643	/* Enclose the state transition Ready->InUninit->NotReady */
644	AutoUninitSpan autoUninitSpan(this);
645	if (autoUninitSpan.uninitDone())
646	return;
647
648	ULONG ul;
649	for (ul = 0; ul < mcMonitors; ul++)
650	maFramebuffers[ul].pFramebuffer = NULL;
651
652	if (mParent)
653	mParent->UnregisterCallback (this);
654
655	unconst(mParent).setNull();
656
657	if (mpDrv)
658	mpDrv->pDisplay = NULL;
659
660	mpDrv = NULL;
661	mpVMMDev = NULL;
662	mfVMMDevInited = true;
663	}
664
665	/**
666	* Register the SSM methods. Called by the power up thread to be able to
667	* pass pVM
668	*/
669	int Display::registerSSM(PVM pVM)
670	{
671	int rc = SSMR3RegisterExternal(pVM, "DisplayData", 0, sSSMDisplayVer,
672	mcMonitors * sizeof(uint32_t) * 3 + sizeof(uint32_t),
673	NULL, NULL, NULL,
674	NULL, displaySSMSave, NULL,
675	NULL, displaySSMLoad, NULL, this);
676
677	AssertRCReturn(rc, rc);
678
679	/*
680	* Register loaders for old saved states where iInstance was 3 * sizeof(uint32_t *).
681	*/
682	rc = SSMR3RegisterExternal(pVM, "DisplayData", 12 /uInstance/, sSSMDisplayVer, 0 /cbGuess/,
683	NULL, NULL, NULL,
684	NULL, NULL, NULL,
685	NULL, displaySSMLoad, NULL, this);
686	AssertRCReturn(rc, rc);
687
688	rc = SSMR3RegisterExternal(pVM, "DisplayData", 24 /uInstance/, sSSMDisplayVer, 0 /cbGuess/,
689	NULL, NULL, NULL,
690	NULL, NULL, NULL,
691	NULL, displaySSMLoad, NULL, this);
692	AssertRCReturn(rc, rc);
693
694	/* uInstance is an arbitrary value greater than 1024. Such a value will ensure a quick seek in saved state file. */
695	rc = SSMR3RegisterExternal(pVM, "DisplayScreenshot", 1100 /uInstance/, sSSMDisplayScreenshotVer, 0 /cbGuess/,
696	NULL, NULL, NULL,
697	NULL, displaySSMSaveScreenshot, NULL,
698	NULL, displaySSMLoadScreenshot, NULL, this);
699
700	AssertRCReturn(rc, rc);
701
702	return VINF_SUCCESS;
703	}
704
705	// IConsoleCallback method
706	STDMETHODIMP Display::OnStateChange(MachineState_T machineState)
707	{
708	if ( machineState == MachineState_Running
709	\|\| machineState == MachineState_Teleporting
710	\|\| machineState == MachineState_LiveSnapshotting
711	)
712	{
713	LogFlowFunc(("Machine is running.\n"));
714
715	mfMachineRunning = true;
716	}
717	else
718	mfMachineRunning = false;
719
720	return S_OK;
721	}
722
723	// public methods only for internal purposes
724	/////////////////////////////////////////////////////////////////////////////
725
726	/**
727	* @thread EMT
728	*/
729	static int callFramebufferResize (IFramebuffer *pFramebuffer, unsigned uScreenId,
730	ULONG pixelFormat, void *pvVRAM,
731	uint32_t bpp, uint32_t cbLine,
732	int w, int h)
733	{
734	Assert (pFramebuffer);
735
736	/* Call the framebuffer to try and set required pixelFormat. */
737	BOOL finished = TRUE;
738
739	pFramebuffer->RequestResize (uScreenId, pixelFormat, (BYTE *) pvVRAM,
740	bpp, cbLine, w, h, &finished);
741
742	if (!finished)
743	{
744	LogFlowFunc (("External framebuffer wants us to wait!\n"));
745	return VINF_VGA_RESIZE_IN_PROGRESS;
746	}
747
748	return VINF_SUCCESS;
749	}
750
751	/**
752	* Handles display resize event.
753	* Disables access to VGA device;
754	* calls the framebuffer RequestResize method;
755	* if framebuffer resizes synchronously,
756	* updates the display connector data and enables access to the VGA device.
757	*
758	* @param w New display width
759	* @param h New display height
760	*
761	* @thread EMT
762	*/
763	int Display::handleDisplayResize (unsigned uScreenId, uint32_t bpp, void *pvVRAM,
764	uint32_t cbLine, int w, int h)
765	{
766	LogRel (("Display::handleDisplayResize(): uScreenId = %d, pvVRAM=%p "
767	"w=%d h=%d bpp=%d cbLine=0x%X\n",
768	uScreenId, pvVRAM, w, h, bpp, cbLine));
769
770	/* If there is no framebuffer, this call is not interesting. */
771	if ( uScreenId >= mcMonitors
772	\|\| maFramebuffers[uScreenId].pFramebuffer.isNull())
773	{
774	return VINF_SUCCESS;
775	}
776
777	mLastAddress = pvVRAM;
778	mLastBytesPerLine = cbLine;
779	mLastBitsPerPixel = bpp,
780	mLastWidth = w;
781	mLastHeight = h;
782
783	ULONG pixelFormat;
784
785	switch (bpp)
786	{
787	case 32:
788	case 24:
789	case 16:
790	pixelFormat = FramebufferPixelFormat_FOURCC_RGB;
791	break;
792	default:
793	pixelFormat = FramebufferPixelFormat_Opaque;
794	bpp = cbLine = 0;
795	break;
796	}
797
798	/* Atomically set the resize status before calling the framebuffer. The new InProgress status will
799	* disable access to the VGA device by the EMT thread.
800	*/
801	bool f = ASMAtomicCmpXchgU32 (&maFramebuffers[uScreenId].u32ResizeStatus,
802	ResizeStatus_InProgress, ResizeStatus_Void);
803	if (!f)
804	{
805	/* This could be a result of the screenshot taking call Display::TakeScreenShot:
806	* if the framebuffer is processing the resize request and GUI calls the TakeScreenShot
807	* and the guest has reprogrammed the virtual VGA devices again so a new resize is required.
808	*
809	* Save the resize information and return the pending status code.
810	*
811	* Note: the resize information is only accessed on EMT so no serialization is required.
812	*/
813	LogRel (("Display::handleDisplayResize(): Warning: resize postponed.\n"));
814
815	maFramebuffers[uScreenId].pendingResize.fPending = true;
816	maFramebuffers[uScreenId].pendingResize.pixelFormat = pixelFormat;
817	maFramebuffers[uScreenId].pendingResize.pvVRAM = pvVRAM;
818	maFramebuffers[uScreenId].pendingResize.bpp = bpp;
819	maFramebuffers[uScreenId].pendingResize.cbLine = cbLine;
820	maFramebuffers[uScreenId].pendingResize.w = w;
821	maFramebuffers[uScreenId].pendingResize.h = h;
822
823	return VINF_VGA_RESIZE_IN_PROGRESS;
824	}
825
826	int rc = callFramebufferResize (maFramebuffers[uScreenId].pFramebuffer, uScreenId,
827	pixelFormat, pvVRAM, bpp, cbLine, w, h);
828	if (rc == VINF_VGA_RESIZE_IN_PROGRESS)
829	{
830	/* Immediately return to the caller. ResizeCompleted will be called back by the
831	* GUI thread. The ResizeCompleted callback will change the resize status from
832	* InProgress to UpdateDisplayData. The latter status will be checked by the
833	* display timer callback on EMT and all required adjustments will be done there.
834	*/
835	return rc;
836	}
837
838	/* Set the status so the 'handleResizeCompleted' would work. */
839	f = ASMAtomicCmpXchgU32 (&maFramebuffers[uScreenId].u32ResizeStatus,
840	ResizeStatus_UpdateDisplayData, ResizeStatus_InProgress);
841	AssertRelease(f);NOREF(f);
842
843	AssertRelease(!maFramebuffers[uScreenId].pendingResize.fPending);
844
845	/* The method also unlocks the framebuffer. */
846	handleResizeCompletedEMT();
847
848	return VINF_SUCCESS;
849	}
850
851	/**
852	* Framebuffer has been resized.
853	* Read the new display data and unlock the framebuffer.
854	*
855	* @thread EMT
856	*/
857	void Display::handleResizeCompletedEMT (void)
858	{
859	LogFlowFunc(("\n"));
860
861	unsigned uScreenId;
862	for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++)
863	{
864	DISPLAYFBINFO *pFBInfo = &maFramebuffers[uScreenId];
865
866	/* Try to into non resizing state. */
867	bool f = ASMAtomicCmpXchgU32 (&pFBInfo->u32ResizeStatus, ResizeStatus_Void, ResizeStatus_UpdateDisplayData);
868
869	if (f == false)
870	{
871	/* This is not the display that has completed resizing. */
872	continue;
873	}
874
875	/* Check whether a resize is pending for this framebuffer. */
876	if (pFBInfo->pendingResize.fPending)
877	{
878	/* Reset the condition, call the display resize with saved data and continue.
879	*
880	* Note: handleDisplayResize can call handleResizeCompletedEMT back,
881	* but infinite recursion is not possible, because when the handleResizeCompletedEMT
882	* is called, the pFBInfo->pendingResize.fPending is equal to false.
883	*/
884	pFBInfo->pendingResize.fPending = false;
885	handleDisplayResize (uScreenId, pFBInfo->pendingResize.bpp, pFBInfo->pendingResize.pvVRAM,
886	pFBInfo->pendingResize.cbLine, pFBInfo->pendingResize.w, pFBInfo->pendingResize.h);
887	continue;
888	}
889
890	if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN && !pFBInfo->pFramebuffer.isNull())
891	{
892	/* Primary framebuffer has completed the resize. Update the connector data for VGA device. */
893	updateDisplayData();
894
895	/* Check the framebuffer pixel format to setup the rendering in VGA device. */
896	BOOL usesGuestVRAM = FALSE;
897	pFBInfo->pFramebuffer->COMGETTER(UsesGuestVRAM) (&usesGuestVRAM);
898
899	pFBInfo->fDefaultFormat = (usesGuestVRAM == FALSE);
900
901	mpDrv->pUpPort->pfnSetRenderVRAM (mpDrv->pUpPort, pFBInfo->fDefaultFormat);
902	}
903
904	#ifdef DEBUG_sunlover
905	if (!stam)
906	{
907	/* protect mpVM */
908	Console::SafeVMPtr pVM (mParent);
909	AssertComRC (pVM.rc());
910
911	STAM_REG(pVM, &StatDisplayRefresh, STAMTYPE_PROFILE, "/PROF/Display/Refresh", STAMUNIT_TICKS_PER_CALL, "Time spent in EMT for display updates.");
912	stam = 1;
913	}
914	#endif /* DEBUG_sunlover */
915
916	/* Inform VRDP server about the change of display parameters. */
917	LogFlowFunc (("Calling VRDP\n"));
918	mParent->consoleVRDPServer()->SendResize();
919	}
920	}
921
922	static void checkCoordBounds (int px, int py, int pw, int ph, int cx, int cy)
923	{
924	/* Correct negative x and y coordinates. */
925	if (*px < 0)
926	{
927	px += pw; /* Compute xRight which is also the new width. */
928
929	pw = (px < 0)? 0: *px;
930
931	*px = 0;
932	}
933
934	if (*py < 0)
935	{
936	py += ph; /* Compute xBottom, which is also the new height. */
937
938	ph = (py < 0)? 0: *py;
939
940	*py = 0;
941	}
942
943	/* Also check if coords are greater than the display resolution. */
944	if (px + pw > cx)
945	{
946	pw = cx > px? cx - *px: 0;
947	}
948
949	if (py + ph > cy)
950	{
951	ph = cy > py? cy - *py: 0;
952	}
953	}
954
955	unsigned mapCoordsToScreen(DISPLAYFBINFO pInfos, unsigned cInfos, int px, int py, int pw, int *ph)
956	{
957	DISPLAYFBINFO *pInfo = pInfos;
958	unsigned uScreenId;
959	LogSunlover (("mapCoordsToScreen: %d,%d %dx%d\n", px, py, pw, ph));
960	for (uScreenId = 0; uScreenId < cInfos; uScreenId++, pInfo++)
961	{
962	LogSunlover ((" [%d] %d,%d %dx%d\n", uScreenId, pInfo->xOrigin, pInfo->yOrigin, pInfo->w, pInfo->h));
963	if ( (pInfo->xOrigin <= px && px < pInfo->xOrigin + (int)pInfo->w)
964	&& (pInfo->yOrigin <= py && py < pInfo->yOrigin + (int)pInfo->h))
965	{
966	/* The rectangle belongs to the screen. Correct coordinates. */
967	*px -= pInfo->xOrigin;
968	*py -= pInfo->yOrigin;
969	LogSunlover ((" -> %d,%d", px, py));
970	break;
971	}
972	}
973	if (uScreenId == cInfos)
974	{
975	/* Map to primary screen. */
976	uScreenId = 0;
977	}
978	LogSunlover ((" scr %d\n", uScreenId));
979	return uScreenId;
980	}
981
982
983	/**
984	* Handles display update event.
985	*
986	* @param x Update area x coordinate
987	* @param y Update area y coordinate
988	* @param w Update area width
989	* @param h Update area height
990	*
991	* @thread EMT
992	*/
993	void Display::handleDisplayUpdate (int x, int y, int w, int h)
994	{
995	#ifdef VBOX_WITH_OLD_VBVA_LOCK
996	/*
997	* Always runs under either VBVA lock or, for HGSMI, DevVGA lock.
998	* Safe to use VBVA vars and take the framebuffer lock.
999	*/
1000	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1001
1002	#ifdef DEBUG_sunlover
1003	LogFlowFunc (("%d,%d %dx%d (%d,%d)\n",
1004	x, y, w, h, mpDrv->IConnector.cx, mpDrv->IConnector.cy));
1005	#endif /* DEBUG_sunlover */
1006
1007	unsigned uScreenId = mapCoordsToScreen(maFramebuffers, mcMonitors, &x, &y, &w, &h);
1008
1009	#ifdef DEBUG_sunlover
1010	LogFlowFunc (("%d,%d %dx%d (checked)\n", x, y, w, h));
1011	#endif /* DEBUG_sunlover */
1012
1013	IFramebuffer *pFramebuffer = maFramebuffers[uScreenId].pFramebuffer;
1014
1015	// if there is no framebuffer, this call is not interesting
1016	if (pFramebuffer == NULL)
1017	return;
1018
1019	pFramebuffer->Lock();
1020
1021	if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN)
1022	checkCoordBounds (&x, &y, &w, &h, mpDrv->IConnector.cx, mpDrv->IConnector.cy);
1023	else
1024	checkCoordBounds (&x, &y, &w, &h, maFramebuffers[uScreenId].w,
1025	maFramebuffers[uScreenId].h);
1026
1027	if (w != 0 && h != 0)
1028	pFramebuffer->NotifyUpdate(x, y, w, h);
1029
1030	pFramebuffer->Unlock();
1031
1032	#ifndef VBOX_WITH_HGSMI
1033	if (!mfVideoAccelEnabled)
1034	{
1035	#else
1036	if (!mfVideoAccelEnabled && !maFramebuffers[uScreenId].fVBVAEnabled)
1037	{
1038	#endif /* VBOX_WITH_HGSMI */
1039	/* When VBVA is enabled, the VRDP server is informed in the VideoAccelFlush.
1040	* Inform the server here only if VBVA is disabled.
1041	*/
1042	if (maFramebuffers[uScreenId].u32ResizeStatus == ResizeStatus_Void)
1043	mParent->consoleVRDPServer()->SendUpdateBitmap(uScreenId, x, y, w, h);
1044	}
1045	}
1046
1047	typedef struct _VBVADIRTYREGION
1048	{
1049	/* Copies of object's pointers used by vbvaRgn functions. */
1050	DISPLAYFBINFO *paFramebuffers;
1051	unsigned cMonitors;
1052	Display *pDisplay;
1053	PPDMIDISPLAYPORT pPort;
1054
1055	} VBVADIRTYREGION;
1056
1057	static void vbvaRgnInit (VBVADIRTYREGION prgn, DISPLAYFBINFO paFramebuffers, unsigned cMonitors, Display *pd, PPDMIDISPLAYPORT pp)
1058	{
1059	prgn->paFramebuffers = paFramebuffers;
1060	prgn->cMonitors = cMonitors;
1061	prgn->pDisplay = pd;
1062	prgn->pPort = pp;
1063
1064	unsigned uScreenId;
1065	for (uScreenId = 0; uScreenId < cMonitors; uScreenId++)
1066	{
1067	DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId];
1068
1069	memset (&pFBInfo->dirtyRect, 0, sizeof (pFBInfo->dirtyRect));
1070	}
1071	}
1072
1073	static void vbvaRgnDirtyRect (VBVADIRTYREGION prgn, unsigned uScreenId, VBVACMDHDR phdr)
1074	{
1075	LogSunlover (("x = %d, y = %d, w = %d, h = %d\n",
1076	phdr->x, phdr->y, phdr->w, phdr->h));
1077
1078	/*
1079	* Here update rectangles are accumulated to form an update area.
1080	* @todo
1081	* Now the simpliest method is used which builds one rectangle that
1082	* includes all update areas. A bit more advanced method can be
1083	* employed here. The method should be fast however.
1084	*/
1085	if (phdr->w == 0 \|\| phdr->h == 0)
1086	{
1087	/* Empty rectangle. */
1088	return;
1089	}
1090
1091	int32_t xRight = phdr->x + phdr->w;
1092	int32_t yBottom = phdr->y + phdr->h;
1093
1094	DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId];
1095
1096	if (pFBInfo->dirtyRect.xRight == 0)
1097	{
1098	/* This is the first rectangle to be added. */
1099	pFBInfo->dirtyRect.xLeft = phdr->x;
1100	pFBInfo->dirtyRect.yTop = phdr->y;
1101	pFBInfo->dirtyRect.xRight = xRight;
1102	pFBInfo->dirtyRect.yBottom = yBottom;
1103	}
1104	else
1105	{
1106	/* Adjust region coordinates. */
1107	if (pFBInfo->dirtyRect.xLeft > phdr->x)
1108	{
1109	pFBInfo->dirtyRect.xLeft = phdr->x;
1110	}
1111
1112	if (pFBInfo->dirtyRect.yTop > phdr->y)
1113	{
1114	pFBInfo->dirtyRect.yTop = phdr->y;
1115	}
1116
1117	if (pFBInfo->dirtyRect.xRight < xRight)
1118	{
1119	pFBInfo->dirtyRect.xRight = xRight;
1120	}
1121
1122	if (pFBInfo->dirtyRect.yBottom < yBottom)
1123	{
1124	pFBInfo->dirtyRect.yBottom = yBottom;
1125	}
1126	}
1127
1128	if (pFBInfo->fDefaultFormat)
1129	{
1130	//@todo pfnUpdateDisplayRect must take the vram offset parameter for the framebuffer
1131	prgn->pPort->pfnUpdateDisplayRect (prgn->pPort, phdr->x, phdr->y, phdr->w, phdr->h);
1132	prgn->pDisplay->handleDisplayUpdate (phdr->x + pFBInfo->xOrigin,
1133	phdr->y + pFBInfo->yOrigin, phdr->w, phdr->h);
1134	}
1135
1136	return;
1137	}
1138
1139	static void vbvaRgnUpdateFramebuffer (VBVADIRTYREGION *prgn, unsigned uScreenId)
1140	{
1141	DISPLAYFBINFO *pFBInfo = &prgn->paFramebuffers[uScreenId];
1142
1143	uint32_t w = pFBInfo->dirtyRect.xRight - pFBInfo->dirtyRect.xLeft;
1144	uint32_t h = pFBInfo->dirtyRect.yBottom - pFBInfo->dirtyRect.yTop;
1145
1146	if (!pFBInfo->fDefaultFormat && pFBInfo->pFramebuffer && w != 0 && h != 0)
1147	{
1148	//@todo pfnUpdateDisplayRect must take the vram offset parameter for the framebuffer
1149	prgn->pPort->pfnUpdateDisplayRect (prgn->pPort, pFBInfo->dirtyRect.xLeft, pFBInfo->dirtyRect.yTop, w, h);
1150	prgn->pDisplay->handleDisplayUpdate (pFBInfo->dirtyRect.xLeft + pFBInfo->xOrigin,
1151	pFBInfo->dirtyRect.yTop + pFBInfo->yOrigin, w, h);
1152	}
1153	}
1154
1155	static void vbvaSetMemoryFlags (VBVAMEMORY *pVbvaMemory,
1156	bool fVideoAccelEnabled,
1157	bool fVideoAccelVRDP,
1158	uint32_t fu32SupportedOrders,
1159	DISPLAYFBINFO *paFBInfos,
1160	unsigned cFBInfos)
1161	{
1162	if (pVbvaMemory)
1163	{
1164	/* This called only on changes in mode. So reset VRDP always. */
1165	uint32_t fu32Flags = VBVA_F_MODE_VRDP_RESET;
1166
1167	if (fVideoAccelEnabled)
1168	{
1169	fu32Flags \|= VBVA_F_MODE_ENABLED;
1170
1171	if (fVideoAccelVRDP)
1172	{
1173	fu32Flags \|= VBVA_F_MODE_VRDP \| VBVA_F_MODE_VRDP_ORDER_MASK;
1174
1175	pVbvaMemory->fu32SupportedOrders = fu32SupportedOrders;
1176	}
1177	}
1178
1179	pVbvaMemory->fu32ModeFlags = fu32Flags;
1180	}
1181
1182	unsigned uScreenId;
1183	for (uScreenId = 0; uScreenId < cFBInfos; uScreenId++)
1184	{
1185	if (paFBInfos[uScreenId].pHostEvents)
1186	{
1187	paFBInfos[uScreenId].pHostEvents->fu32Events \|= VBOX_VIDEO_INFO_HOST_EVENTS_F_VRDP_RESET;
1188	}
1189	}
1190	}
1191
1192	#ifdef VBOX_WITH_HGSMI
1193	static void vbvaSetMemoryFlagsHGSMI (unsigned uScreenId,
1194	uint32_t fu32SupportedOrders,
1195	bool fVideoAccelVRDP,
1196	DISPLAYFBINFO *pFBInfo)
1197	{
1198	LogFlowFunc(("HGSMI[%d]: %p\n", uScreenId, pFBInfo->pVBVAHostFlags));
1199
1200	if (pFBInfo->pVBVAHostFlags)
1201	{
1202	uint32_t fu32HostEvents = VBOX_VIDEO_INFO_HOST_EVENTS_F_VRDP_RESET;
1203
1204	if (pFBInfo->fVBVAEnabled)
1205	{
1206	fu32HostEvents \|= VBVA_F_MODE_ENABLED;
1207
1208	if (fVideoAccelVRDP)
1209	{
1210	fu32HostEvents \|= VBVA_F_MODE_VRDP;
1211	}
1212	}
1213
1214	ASMAtomicOrU32(&pFBInfo->pVBVAHostFlags->u32HostEvents, fu32HostEvents);
1215	ASMAtomicWriteU32(&pFBInfo->pVBVAHostFlags->u32SupportedOrders, fu32SupportedOrders);
1216
1217	LogFlowFunc((" fu32HostEvents = 0x%08X, fu32SupportedOrders = 0x%08X\n", fu32HostEvents, fu32SupportedOrders));
1218	}
1219	}
1220
1221	static void vbvaSetMemoryFlagsAllHGSMI (uint32_t fu32SupportedOrders,
1222	bool fVideoAccelVRDP,
1223	DISPLAYFBINFO *paFBInfos,
1224	unsigned cFBInfos)
1225	{
1226	unsigned uScreenId;
1227
1228	for (uScreenId = 0; uScreenId < cFBInfos; uScreenId++)
1229	{
1230	vbvaSetMemoryFlagsHGSMI(uScreenId, fu32SupportedOrders, fVideoAccelVRDP, &paFBInfos[uScreenId]);
1231	}
1232	}
1233	#endif /* VBOX_WITH_HGSMI */
1234
1235	bool Display::VideoAccelAllowed (void)
1236	{
1237	return true;
1238	}
1239
1240	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1241	int Display::vbvaLock(void)
1242	{
1243	return RTCritSectEnter(&mVBVALock);
1244	}
1245
1246	void Display::vbvaUnlock(void)
1247	{
1248	RTCritSectLeave(&mVBVALock);
1249	}
1250	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1251
1252	/**
1253	* @thread EMT
1254	*/
1255	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1256	int Display::VideoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory)
1257	{
1258	int rc;
1259	vbvaLock();
1260	rc = videoAccelEnable (fEnable, pVbvaMemory);
1261	vbvaUnlock();
1262	return rc;
1263	}
1264	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1265
1266	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1267	int Display::videoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory)
1268	#else
1269	int Display::VideoAccelEnable (bool fEnable, VBVAMEMORY *pVbvaMemory)
1270	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1271	{
1272	int rc = VINF_SUCCESS;
1273
1274	/* Called each time the guest wants to use acceleration,
1275	* or when the VGA device disables acceleration,
1276	* or when restoring the saved state with accel enabled.
1277	*
1278	* VGA device disables acceleration on each video mode change
1279	* and on reset.
1280	*
1281	* Guest enabled acceleration at will. And it has to enable
1282	* acceleration after a mode change.
1283	*/
1284	LogFlowFunc (("mfVideoAccelEnabled = %d, fEnable = %d, pVbvaMemory = %p\n",
1285	mfVideoAccelEnabled, fEnable, pVbvaMemory));
1286
1287	/* Strictly check parameters. Callers must not pass anything in the case. */
1288	Assert((fEnable && pVbvaMemory) \|\| (!fEnable && pVbvaMemory == NULL));
1289
1290	if (!VideoAccelAllowed ())
1291	{
1292	return VERR_NOT_SUPPORTED;
1293	}
1294
1295	/*
1296	* Verify that the VM is in running state. If it is not,
1297	* then this must be postponed until it goes to running.
1298	*/
1299	if (!mfMachineRunning)
1300	{
1301	Assert (!mfVideoAccelEnabled);
1302
1303	LogFlowFunc (("Machine is not yet running.\n"));
1304
1305	if (fEnable)
1306	{
1307	mfPendingVideoAccelEnable = fEnable;
1308	mpPendingVbvaMemory = pVbvaMemory;
1309	}
1310
1311	return rc;
1312	}
1313
1314	/* Check that current status is not being changed */
1315	if (mfVideoAccelEnabled == fEnable)
1316	{
1317	return rc;
1318	}
1319
1320	if (mfVideoAccelEnabled)
1321	{
1322	/* Process any pending orders and empty the VBVA ring buffer. */
1323	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1324	videoAccelFlush ();
1325	#else
1326	VideoAccelFlush ();
1327	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1328	}
1329
1330	if (!fEnable && mpVbvaMemory)
1331	{
1332	mpVbvaMemory->fu32ModeFlags &= ~VBVA_F_MODE_ENABLED;
1333	}
1334
1335	/* Safety precaution. There is no more VBVA until everything is setup! */
1336	mpVbvaMemory = NULL;
1337	mfVideoAccelEnabled = false;
1338
1339	/* Update entire display. */
1340	if (maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].u32ResizeStatus == ResizeStatus_Void)
1341	{
1342	mpDrv->pUpPort->pfnUpdateDisplayAll(mpDrv->pUpPort);
1343	}
1344
1345	/* Everything OK. VBVA status can be changed. */
1346
1347	/* Notify the VMMDev, which saves VBVA status in the saved state,
1348	* and needs to know current status.
1349	*/
1350	PPDMIVMMDEVPORT pVMMDevPort = mParent->getVMMDev()->getVMMDevPort ();
1351
1352	if (pVMMDevPort)
1353	{
1354	pVMMDevPort->pfnVBVAChange (pVMMDevPort, fEnable);
1355	}
1356
1357	if (fEnable)
1358	{
1359	mpVbvaMemory = pVbvaMemory;
1360	mfVideoAccelEnabled = true;
1361
1362	/* Initialize the hardware memory. */
1363	vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors);
1364	mpVbvaMemory->off32Data = 0;
1365	mpVbvaMemory->off32Free = 0;
1366
1367	memset (mpVbvaMemory->aRecords, 0, sizeof (mpVbvaMemory->aRecords));
1368	mpVbvaMemory->indexRecordFirst = 0;
1369	mpVbvaMemory->indexRecordFree = 0;
1370
1371	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1372	mfu32PendingVideoAccelDisable = false;
1373	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1374
1375	LogRel(("VBVA: Enabled.\n"));
1376	}
1377	else
1378	{
1379	LogRel(("VBVA: Disabled.\n"));
1380	}
1381
1382	LogFlowFunc (("VideoAccelEnable: rc = %Rrc.\n", rc));
1383
1384	return rc;
1385	}
1386
1387	#ifdef VBOX_WITH_VRDP
1388	/* Called always by one VRDP server thread. Can be thread-unsafe.
1389	*/
1390	void Display::VideoAccelVRDP (bool fEnable)
1391	{
1392	LogFlowFunc(("fEnable = %d\n", fEnable));
1393
1394	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1395	vbvaLock();
1396	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1397
1398	int c = fEnable?
1399	ASMAtomicIncS32 (&mcVideoAccelVRDPRefs):
1400	ASMAtomicDecS32 (&mcVideoAccelVRDPRefs);
1401
1402	Assert (c >= 0);
1403
1404	if (c == 0)
1405	{
1406	/* The last client has disconnected, and the accel can be
1407	* disabled.
1408	*/
1409	Assert (fEnable == false);
1410
1411	mfVideoAccelVRDP = false;
1412	mfu32SupportedOrders = 0;
1413
1414	vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors);
1415	#ifdef VBOX_WITH_HGSMI
1416	/* Here is VRDP-IN thread. Process the request in vbvaUpdateBegin under DevVGA lock on an EMT. */
1417	ASMAtomicIncU32(&mu32UpdateVBVAFlags);
1418	#endif /* VBOX_WITH_HGSMI */
1419
1420	LogRel(("VBVA: VRDP acceleration has been disabled.\n"));
1421	}
1422	else if ( c == 1
1423	&& !mfVideoAccelVRDP)
1424	{
1425	/* The first client has connected. Enable the accel.
1426	*/
1427	Assert (fEnable == true);
1428
1429	mfVideoAccelVRDP = true;
1430	/* Supporting all orders. */
1431	mfu32SupportedOrders = ~0;
1432
1433	vbvaSetMemoryFlags (mpVbvaMemory, mfVideoAccelEnabled, mfVideoAccelVRDP, mfu32SupportedOrders, maFramebuffers, mcMonitors);
1434	#ifdef VBOX_WITH_HGSMI
1435	/* Here is VRDP-IN thread. Process the request in vbvaUpdateBegin under DevVGA lock on an EMT. */
1436	ASMAtomicIncU32(&mu32UpdateVBVAFlags);
1437	#endif /* VBOX_WITH_HGSMI */
1438
1439	LogRel(("VBVA: VRDP acceleration has been requested.\n"));
1440	}
1441	else
1442	{
1443	/* A client is connected or disconnected but there is no change in the
1444	* accel state. It remains enabled.
1445	*/
1446	Assert (mfVideoAccelVRDP == true);
1447	}
1448	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1449	vbvaUnlock();
1450	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1451	}
1452	#endif /* VBOX_WITH_VRDP */
1453
1454	static bool vbvaVerifyRingBuffer (VBVAMEMORY *pVbvaMemory)
1455	{
1456	return true;
1457	}
1458
1459	static void vbvaFetchBytes (VBVAMEMORY pVbvaMemory, uint8_t pu8Dst, uint32_t cbDst)
1460	{
1461	if (cbDst >= VBVA_RING_BUFFER_SIZE)
1462	{
1463	AssertMsgFailed (("cbDst = 0x%08X, ring buffer size 0x%08X", cbDst, VBVA_RING_BUFFER_SIZE));
1464	return;
1465	}
1466
1467	uint32_t u32BytesTillBoundary = VBVA_RING_BUFFER_SIZE - pVbvaMemory->off32Data;
1468	uint8_t *src = &pVbvaMemory->au8RingBuffer[pVbvaMemory->off32Data];
1469	int32_t i32Diff = cbDst - u32BytesTillBoundary;
1470
1471	if (i32Diff <= 0)
1472	{
1473	/* Chunk will not cross buffer boundary. */
1474	memcpy (pu8Dst, src, cbDst);
1475	}
1476	else
1477	{
1478	/* Chunk crosses buffer boundary. */
1479	memcpy (pu8Dst, src, u32BytesTillBoundary);
1480	memcpy (pu8Dst + u32BytesTillBoundary, &pVbvaMemory->au8RingBuffer[0], i32Diff);
1481	}
1482
1483	/* Advance data offset. */
1484	pVbvaMemory->off32Data = (pVbvaMemory->off32Data + cbDst) % VBVA_RING_BUFFER_SIZE;
1485
1486	return;
1487	}
1488
1489
1490	static bool vbvaPartialRead (uint8_t *ppu8, uint32_t pcb, uint32_t cbRecord, VBVAMEMORY *pVbvaMemory)
1491	{
1492	uint8_t *pu8New;
1493
1494	LogFlow(("MAIN::DisplayImpl::vbvaPartialRead: p = %p, cb = %d, cbRecord 0x%08X\n",
1495	ppu8, pcb, cbRecord));
1496
1497	if (*ppu8)
1498	{
1499	Assert (*pcb);
1500	pu8New = (uint8_t )RTMemRealloc (ppu8, cbRecord);
1501	}
1502	else
1503	{
1504	Assert (!*pcb);
1505	pu8New = (uint8_t *)RTMemAlloc (cbRecord);
1506	}
1507
1508	if (!pu8New)
1509	{
1510	/* Memory allocation failed, fail the function. */
1511	Log(("MAIN::vbvaPartialRead: failed to (re)alocate memory for partial record!!! cbRecord 0x%08X\n",
1512	cbRecord));
1513
1514	if (*ppu8)
1515	{
1516	RTMemFree (*ppu8);
1517	}
1518
1519	*ppu8 = NULL;
1520	*pcb = 0;
1521
1522	return false;
1523	}
1524
1525	/* Fetch data from the ring buffer. */
1526	vbvaFetchBytes (pVbvaMemory, pu8New + pcb, cbRecord - pcb);
1527
1528	*ppu8 = pu8New;
1529	*pcb = cbRecord;
1530
1531	return true;
1532	}
1533
1534	/* For contiguous chunks just return the address in the buffer.
1535	* For crossing boundary - allocate a buffer from heap.
1536	*/
1537	bool Display::vbvaFetchCmd (VBVACMDHDR *ppHdr, uint32_t pcbCmd)
1538	{
1539	uint32_t indexRecordFirst = mpVbvaMemory->indexRecordFirst;
1540	uint32_t indexRecordFree = mpVbvaMemory->indexRecordFree;
1541
1542	#ifdef DEBUG_sunlover
1543	LogFlowFunc (("first = %d, free = %d\n",
1544	indexRecordFirst, indexRecordFree));
1545	#endif /* DEBUG_sunlover */
1546
1547	if (!vbvaVerifyRingBuffer (mpVbvaMemory))
1548	{
1549	return false;
1550	}
1551
1552	if (indexRecordFirst == indexRecordFree)
1553	{
1554	/* No records to process. Return without assigning output variables. */
1555	return true;
1556	}
1557
1558	VBVARECORD *pRecord = &mpVbvaMemory->aRecords[indexRecordFirst];
1559
1560	#ifdef DEBUG_sunlover
1561	LogFlowFunc (("cbRecord = 0x%08X\n", pRecord->cbRecord));
1562	#endif /* DEBUG_sunlover */
1563
1564	uint32_t cbRecord = pRecord->cbRecord & ~VBVA_F_RECORD_PARTIAL;
1565
1566	if (mcbVbvaPartial)
1567	{
1568	/* There is a partial read in process. Continue with it. */
1569
1570	Assert (mpu8VbvaPartial);
1571
1572	LogFlowFunc (("continue partial record mcbVbvaPartial = %d cbRecord 0x%08X, first = %d, free = %d\n",
1573	mcbVbvaPartial, pRecord->cbRecord, indexRecordFirst, indexRecordFree));
1574
1575	if (cbRecord > mcbVbvaPartial)
1576	{
1577	/* New data has been added to the record. */
1578	if (!vbvaPartialRead (&mpu8VbvaPartial, &mcbVbvaPartial, cbRecord, mpVbvaMemory))
1579	{
1580	return false;
1581	}
1582	}
1583
1584	if (!(pRecord->cbRecord & VBVA_F_RECORD_PARTIAL))
1585	{
1586	/* The record is completed by guest. Return it to the caller. */
1587	ppHdr = (VBVACMDHDR )mpu8VbvaPartial;
1588	*pcbCmd = mcbVbvaPartial;
1589
1590	mpu8VbvaPartial = NULL;
1591	mcbVbvaPartial = 0;
1592
1593	/* Advance the record index. */
1594	mpVbvaMemory->indexRecordFirst = (indexRecordFirst + 1) % VBVA_MAX_RECORDS;
1595
1596	#ifdef DEBUG_sunlover
1597	LogFlowFunc (("partial done ok, data = %d, free = %d\n",
1598	mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1599	#endif /* DEBUG_sunlover */
1600	}
1601
1602	return true;
1603	}
1604
1605	/* A new record need to be processed. */
1606	if (pRecord->cbRecord & VBVA_F_RECORD_PARTIAL)
1607	{
1608	/* Current record is being written by guest. '=' is important here. */
1609	if (cbRecord >= VBVA_RING_BUFFER_SIZE - VBVA_RING_BUFFER_THRESHOLD)
1610	{
1611	/* Partial read must be started. */
1612	if (!vbvaPartialRead (&mpu8VbvaPartial, &mcbVbvaPartial, cbRecord, mpVbvaMemory))
1613	{
1614	return false;
1615	}
1616
1617	LogFlowFunc (("started partial record mcbVbvaPartial = 0x%08X cbRecord 0x%08X, first = %d, free = %d\n",
1618	mcbVbvaPartial, pRecord->cbRecord, indexRecordFirst, indexRecordFree));
1619	}
1620
1621	return true;
1622	}
1623
1624	/* Current record is complete. If it is not empty, process it. */
1625	if (cbRecord)
1626	{
1627	/* The size of largest contiguos chunk in the ring biffer. */
1628	uint32_t u32BytesTillBoundary = VBVA_RING_BUFFER_SIZE - mpVbvaMemory->off32Data;
1629
1630	/* The ring buffer pointer. */
1631	uint8_t *au8RingBuffer = &mpVbvaMemory->au8RingBuffer[0];
1632
1633	/* The pointer to data in the ring buffer. */
1634	uint8_t *src = &au8RingBuffer[mpVbvaMemory->off32Data];
1635
1636	/* Fetch or point the data. */
1637	if (u32BytesTillBoundary >= cbRecord)
1638	{
1639	/* The command does not cross buffer boundary. Return address in the buffer. */
1640	ppHdr = (VBVACMDHDR )src;
1641
1642	/* Advance data offset. */
1643	mpVbvaMemory->off32Data = (mpVbvaMemory->off32Data + cbRecord) % VBVA_RING_BUFFER_SIZE;
1644	}
1645	else
1646	{
1647	/* The command crosses buffer boundary. Rare case, so not optimized. */
1648	uint8_t dst = (uint8_t )RTMemAlloc (cbRecord);
1649
1650	if (!dst)
1651	{
1652	LogFlowFunc (("could not allocate %d bytes from heap!!!\n", cbRecord));
1653	mpVbvaMemory->off32Data = (mpVbvaMemory->off32Data + cbRecord) % VBVA_RING_BUFFER_SIZE;
1654	return false;
1655	}
1656
1657	vbvaFetchBytes (mpVbvaMemory, dst, cbRecord);
1658
1659	ppHdr = (VBVACMDHDR )dst;
1660
1661	#ifdef DEBUG_sunlover
1662	LogFlowFunc (("Allocated from heap %p\n", dst));
1663	#endif /* DEBUG_sunlover */
1664	}
1665	}
1666
1667	*pcbCmd = cbRecord;
1668
1669	/* Advance the record index. */
1670	mpVbvaMemory->indexRecordFirst = (indexRecordFirst + 1) % VBVA_MAX_RECORDS;
1671
1672	#ifdef DEBUG_sunlover
1673	LogFlowFunc (("done ok, data = %d, free = %d\n",
1674	mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1675	#endif /* DEBUG_sunlover */
1676
1677	return true;
1678	}
1679
1680	void Display::vbvaReleaseCmd (VBVACMDHDR *pHdr, int32_t cbCmd)
1681	{
1682	uint8_t *au8RingBuffer = mpVbvaMemory->au8RingBuffer;
1683
1684	if ( (uint8_t *)pHdr >= au8RingBuffer
1685	&& (uint8_t *)pHdr < &au8RingBuffer[VBVA_RING_BUFFER_SIZE])
1686	{
1687	/* The pointer is inside ring buffer. Must be continuous chunk. */
1688	Assert (VBVA_RING_BUFFER_SIZE - ((uint8_t *)pHdr - au8RingBuffer) >= cbCmd);
1689
1690	/* Do nothing. */
1691
1692	Assert (!mpu8VbvaPartial && mcbVbvaPartial == 0);
1693	}
1694	else
1695	{
1696	/* The pointer is outside. It is then an allocated copy. */
1697
1698	#ifdef DEBUG_sunlover
1699	LogFlowFunc (("Free heap %p\n", pHdr));
1700	#endif /* DEBUG_sunlover */
1701
1702	if ((uint8_t *)pHdr == mpu8VbvaPartial)
1703	{
1704	mpu8VbvaPartial = NULL;
1705	mcbVbvaPartial = 0;
1706	}
1707	else
1708	{
1709	Assert (!mpu8VbvaPartial && mcbVbvaPartial == 0);
1710	}
1711
1712	RTMemFree (pHdr);
1713	}
1714
1715	return;
1716	}
1717
1718
1719	/**
1720	* Called regularly on the DisplayRefresh timer.
1721	* Also on behalf of guest, when the ring buffer is full.
1722	*
1723	* @thread EMT
1724	*/
1725	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1726	void Display::VideoAccelFlush (void)
1727	{
1728	vbvaLock();
1729	videoAccelFlush();
1730	vbvaUnlock();
1731	}
1732	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1733
1734	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1735	/* Under VBVA lock. DevVGA is not taken. */
1736	void Display::videoAccelFlush (void)
1737	#else
1738	void Display::VideoAccelFlush (void)
1739	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1740	{
1741	#ifdef DEBUG_sunlover_2
1742	LogFlowFunc (("mfVideoAccelEnabled = %d\n", mfVideoAccelEnabled));
1743	#endif /* DEBUG_sunlover_2 */
1744
1745	if (!mfVideoAccelEnabled)
1746	{
1747	Log(("Display::VideoAccelFlush: called with disabled VBVA!!! Ignoring.\n"));
1748	return;
1749	}
1750
1751	/* Here VBVA is enabled and we have the accelerator memory pointer. */
1752	Assert(mpVbvaMemory);
1753
1754	#ifdef DEBUG_sunlover_2
1755	LogFlowFunc (("indexRecordFirst = %d, indexRecordFree = %d, off32Data = %d, off32Free = %d\n",
1756	mpVbvaMemory->indexRecordFirst, mpVbvaMemory->indexRecordFree, mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1757	#endif /* DEBUG_sunlover_2 */
1758
1759	/* Quick check for "nothing to update" case. */
1760	if (mpVbvaMemory->indexRecordFirst == mpVbvaMemory->indexRecordFree)
1761	{
1762	return;
1763	}
1764
1765	/* Process the ring buffer */
1766	unsigned uScreenId;
1767	#ifndef VBOX_WITH_OLD_VBVA_LOCK
1768	for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++)
1769	{
1770	if (!maFramebuffers[uScreenId].pFramebuffer.isNull())
1771	{
1772	maFramebuffers[uScreenId].pFramebuffer->Lock ();
1773	}
1774	}
1775	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1776
1777	/* Initialize dirty rectangles accumulator. */
1778	VBVADIRTYREGION rgn;
1779	vbvaRgnInit (&rgn, maFramebuffers, mcMonitors, this, mpDrv->pUpPort);
1780
1781	for (;;)
1782	{
1783	VBVACMDHDR *phdr = NULL;
1784	uint32_t cbCmd = ~0;
1785
1786	/* Fetch the command data. */
1787	if (!vbvaFetchCmd (&phdr, &cbCmd))
1788	{
1789	Log(("Display::VideoAccelFlush: unable to fetch command. off32Data = %d, off32Free = %d. Disabling VBVA!!!\n",
1790	mpVbvaMemory->off32Data, mpVbvaMemory->off32Free));
1791
1792	/* Disable VBVA on those processing errors. */
1793	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1794	videoAccelEnable (false, NULL);
1795	#else
1796	VideoAccelEnable (false, NULL);
1797	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1798
1799	break;
1800	}
1801
1802	if (cbCmd == uint32_t(~0))
1803	{
1804	/* No more commands yet in the queue. */
1805	break;
1806	}
1807
1808	if (cbCmd != 0)
1809	{
1810	#ifdef DEBUG_sunlover
1811	LogFlowFunc (("hdr: cbCmd = %d, x=%d, y=%d, w=%d, h=%d\n",
1812	cbCmd, phdr->x, phdr->y, phdr->w, phdr->h));
1813	#endif /* DEBUG_sunlover */
1814
1815	VBVACMDHDR hdrSaved = *phdr;
1816
1817	int x = phdr->x;
1818	int y = phdr->y;
1819	int w = phdr->w;
1820	int h = phdr->h;
1821
1822	uScreenId = mapCoordsToScreen(maFramebuffers, mcMonitors, &x, &y, &w, &h);
1823
1824	phdr->x = (int16_t)x;
1825	phdr->y = (int16_t)y;
1826	phdr->w = (uint16_t)w;
1827	phdr->h = (uint16_t)h;
1828
1829	DISPLAYFBINFO *pFBInfo = &maFramebuffers[uScreenId];
1830
1831	if (pFBInfo->u32ResizeStatus == ResizeStatus_Void)
1832	{
1833	/* Handle the command.
1834	*
1835	* Guest is responsible for updating the guest video memory.
1836	* The Windows guest does all drawing using Eng*.
1837	*
1838	* For local output, only dirty rectangle information is used
1839	* to update changed areas.
1840	*
1841	* Dirty rectangles are accumulated to exclude overlapping updates and
1842	* group small updates to a larger one.
1843	*/
1844
1845	/* Accumulate the update. */
1846	vbvaRgnDirtyRect (&rgn, uScreenId, phdr);
1847
1848	/* Forward the command to VRDP server. */
1849	mParent->consoleVRDPServer()->SendUpdate (uScreenId, phdr, cbCmd);
1850
1851	*phdr = hdrSaved;
1852	}
1853	}
1854
1855	vbvaReleaseCmd (phdr, cbCmd);
1856	}
1857
1858	for (uScreenId = 0; uScreenId < mcMonitors; uScreenId++)
1859	{
1860	#ifndef VBOX_WITH_OLD_VBVA_LOCK
1861	if (!maFramebuffers[uScreenId].pFramebuffer.isNull())
1862	{
1863	maFramebuffers[uScreenId].pFramebuffer->Unlock ();
1864	}
1865	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
1866
1867	if (maFramebuffers[uScreenId].u32ResizeStatus == ResizeStatus_Void)
1868	{
1869	/* Draw the framebuffer. */
1870	vbvaRgnUpdateFramebuffer (&rgn, uScreenId);
1871	}
1872	}
1873	}
1874
1875	#ifdef VBOX_WITH_OLD_VBVA_LOCK
1876	int Display::videoAccelRefreshProcess(void)
1877	{
1878	int rc = VWRN_INVALID_STATE; /* Default is to do a display update in VGA device. */
1879
1880	vbvaLock();
1881
1882	if (ASMAtomicCmpXchgU32(&mfu32PendingVideoAccelDisable, false, true))
1883	{
1884	videoAccelEnable (false, NULL);
1885	}
1886	else if (mfPendingVideoAccelEnable)
1887	{
1888	/* Acceleration was enabled while machine was not yet running
1889	* due to restoring from saved state. Update entire display and
1890	* actually enable acceleration.
1891	*/
1892	Assert(mpPendingVbvaMemory);
1893
1894	/* Acceleration can not be yet enabled.*/
1895	Assert(mpVbvaMemory == NULL);
1896	Assert(!mfVideoAccelEnabled);
1897
1898	if (mfMachineRunning)
1899	{
1900	videoAccelEnable (mfPendingVideoAccelEnable,
1901	mpPendingVbvaMemory);
1902
1903	/* Reset the pending state. */
1904	mfPendingVideoAccelEnable = false;
1905	mpPendingVbvaMemory = NULL;
1906	}
1907
1908	rc = VINF_TRY_AGAIN;
1909	}
1910	else
1911	{
1912	Assert(mpPendingVbvaMemory == NULL);
1913
1914	if (mfVideoAccelEnabled)
1915	{
1916	Assert(mpVbvaMemory);
1917	videoAccelFlush ();
1918
1919	rc = VINF_SUCCESS; /* VBVA processed, no need to a display update. */
1920	}
1921	}
1922
1923	vbvaUnlock();
1924
1925	return rc;
1926	}
1927	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
1928
1929
1930	// IDisplay properties
1931	/////////////////////////////////////////////////////////////////////////////
1932
1933	/**
1934	* Returns the current display width in pixel
1935	*
1936	* @returns COM status code
1937	* @param width Address of result variable.
1938	*/
1939	STDMETHODIMP Display::COMGETTER(Width) (ULONG *width)
1940	{
1941	CheckComArgNotNull(width);
1942
1943	AutoCaller autoCaller(this);
1944	if (FAILED(autoCaller.rc())) return autoCaller.rc();
1945
1946	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1947
1948	CHECK_CONSOLE_DRV (mpDrv);
1949
1950	*width = mpDrv->IConnector.cx;
1951
1952	return S_OK;
1953	}
1954
1955	/**
1956	* Returns the current display height in pixel
1957	*
1958	* @returns COM status code
1959	* @param height Address of result variable.
1960	*/
1961	STDMETHODIMP Display::COMGETTER(Height) (ULONG *height)
1962	{
1963	CheckComArgNotNull(height);
1964
1965	AutoCaller autoCaller(this);
1966	if (FAILED(autoCaller.rc())) return autoCaller.rc();
1967
1968	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1969
1970	CHECK_CONSOLE_DRV (mpDrv);
1971
1972	*height = mpDrv->IConnector.cy;
1973
1974	return S_OK;
1975	}
1976
1977	/**
1978	* Returns the current display color depth in bits
1979	*
1980	* @returns COM status code
1981	* @param bitsPerPixel Address of result variable.
1982	*/
1983	STDMETHODIMP Display::COMGETTER(BitsPerPixel) (ULONG *bitsPerPixel)
1984	{
1985	if (!bitsPerPixel)
1986	return E_INVALIDARG;
1987
1988	AutoCaller autoCaller(this);
1989	if (FAILED(autoCaller.rc())) return autoCaller.rc();
1990
1991	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
1992
1993	CHECK_CONSOLE_DRV (mpDrv);
1994
1995	uint32_t cBits = 0;
1996	int rc = mpDrv->pUpPort->pfnQueryColorDepth(mpDrv->pUpPort, &cBits);
1997	AssertRC(rc);
1998	*bitsPerPixel = cBits;
1999
2000	return S_OK;
2001	}
2002
2003
2004	// IDisplay methods
2005	/////////////////////////////////////////////////////////////////////////////
2006
2007	STDMETHODIMP Display::SetFramebuffer (ULONG aScreenId,
2008	IFramebuffer *aFramebuffer)
2009	{
2010	LogFlowFunc (("\n"));
2011
2012	if (aFramebuffer != NULL)
2013	CheckComArgOutPointerValid(aFramebuffer);
2014
2015	AutoCaller autoCaller(this);
2016	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2017
2018	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2019
2020	Console::SafeVMPtrQuiet pVM (mParent);
2021	if (pVM.isOk())
2022	{
2023	/* Must leave the lock here because the changeFramebuffer will
2024	* also obtain it. */
2025	alock.leave ();
2026
2027	/* send request to the EMT thread */
2028	int vrc = VMR3ReqCallWait (pVM, VMCPUID_ANY,
2029	(PFNRT) changeFramebuffer, 3, this, aFramebuffer, aScreenId);
2030
2031	alock.enter ();
2032
2033	ComAssertRCRet (vrc, E_FAIL);
2034	}
2035	else
2036	{
2037	/* No VM is created (VM is powered off), do a direct call */
2038	int vrc = changeFramebuffer (this, aFramebuffer, aScreenId);
2039	ComAssertRCRet (vrc, E_FAIL);
2040	}
2041
2042	return S_OK;
2043	}
2044
2045	STDMETHODIMP Display::GetFramebuffer (ULONG aScreenId,
2046	IFramebuffer *aFramebuffer, LONG aXOrigin, LONG *aYOrigin)
2047	{
2048	LogFlowFunc (("aScreenId = %d\n", aScreenId));
2049
2050	CheckComArgOutPointerValid(aFramebuffer);
2051
2052	AutoCaller autoCaller(this);
2053	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2054
2055	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2056
2057	/* @todo this should be actually done on EMT. */
2058	DISPLAYFBINFO *pFBInfo = &maFramebuffers[aScreenId];
2059
2060	*aFramebuffer = pFBInfo->pFramebuffer;
2061	if (*aFramebuffer)
2062	(*aFramebuffer)->AddRef ();
2063	if (aXOrigin)
2064	*aXOrigin = pFBInfo->xOrigin;
2065	if (aYOrigin)
2066	*aYOrigin = pFBInfo->yOrigin;
2067
2068	return S_OK;
2069	}
2070
2071	STDMETHODIMP Display::SetVideoModeHint(ULONG aWidth, ULONG aHeight,
2072	ULONG aBitsPerPixel, ULONG aDisplay)
2073	{
2074	AutoCaller autoCaller(this);
2075	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2076
2077	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2078
2079	CHECK_CONSOLE_DRV (mpDrv);
2080
2081	/*
2082	* Do some rough checks for valid input
2083	*/
2084	ULONG width = aWidth;
2085	if (!width)
2086	width = mpDrv->IConnector.cx;
2087	ULONG height = aHeight;
2088	if (!height)
2089	height = mpDrv->IConnector.cy;
2090	ULONG bpp = aBitsPerPixel;
2091	if (!bpp)
2092	{
2093	uint32_t cBits = 0;
2094	int rc = mpDrv->pUpPort->pfnQueryColorDepth(mpDrv->pUpPort, &cBits);
2095	AssertRC(rc);
2096	bpp = cBits;
2097	}
2098	ULONG cMonitors;
2099	mParent->machine()->COMGETTER(MonitorCount)(&cMonitors);
2100	if (cMonitors == 0 && aDisplay > 0)
2101	return E_INVALIDARG;
2102	if (aDisplay >= cMonitors)
2103	return E_INVALIDARG;
2104
2105	// sunlover 20070614: It is up to the guest to decide whether the hint is valid.
2106	// ULONG vramSize;
2107	// mParent->machine()->COMGETTER(VRAMSize)(&vramSize);
2108	// /* enough VRAM? */
2109	// if ((width * height * (bpp / 8)) > (vramSize * 1024 * 1024))
2110	// return setError(E_FAIL, tr("Not enough VRAM for the selected video mode"));
2111
2112	/* Have to leave the lock because the pfnRequestDisplayChange
2113	* will call EMT. */
2114	alock.leave ();
2115	if (mParent->getVMMDev())
2116	mParent->getVMMDev()->getVMMDevPort()->
2117	pfnRequestDisplayChange (mParent->getVMMDev()->getVMMDevPort(),
2118	aWidth, aHeight, aBitsPerPixel, aDisplay);
2119	return S_OK;
2120	}
2121
2122	STDMETHODIMP Display::SetSeamlessMode (BOOL enabled)
2123	{
2124	AutoCaller autoCaller(this);
2125	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2126
2127	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2128
2129	/* Have to leave the lock because the pfnRequestSeamlessChange will call EMT. */
2130	alock.leave ();
2131	if (mParent->getVMMDev())
2132	mParent->getVMMDev()->getVMMDevPort()->
2133	pfnRequestSeamlessChange (mParent->getVMMDev()->getVMMDevPort(),
2134	!!enabled);
2135	return S_OK;
2136	}
2137
2138	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2139	int Display::displayTakeScreenshotEMT(Display pDisplay, uint8_t ppu8Data, size_t pcbData, uint32_t pu32Width, uint32_t pu32Height)
2140	{
2141	int rc;
2142	pDisplay->vbvaLock();
2143	rc = pDisplay->mpDrv->pUpPort->pfnTakeScreenshot(pDisplay->mpDrv->pUpPort, ppu8Data, pcbData, pu32Width, pu32Height);
2144	pDisplay->vbvaUnlock();
2145	return rc;
2146	}
2147	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2148
2149	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2150	static int displayTakeScreenshot(PVM pVM, Display pDisplay, struct DRVMAINDISPLAY pDrv, BYTE *address, ULONG width, ULONG height)
2151	#else
2152	static int displayTakeScreenshot(PVM pVM, struct DRVMAINDISPLAY pDrv, BYTE address, ULONG width, ULONG height)
2153	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2154	{
2155	uint8_t *pu8Data = NULL;
2156	size_t cbData = 0;
2157	uint32_t cx = 0;
2158	uint32_t cy = 0;
2159
2160	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2161	int vrc = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)Display::displayTakeScreenshotEMT, 5,
2162	pDisplay, &pu8Data, &cbData, &cx, &cy);
2163	#else
2164	/* @todo pfnTakeScreenshot is probably callable from any thread, because it uses the VGA device lock. */
2165	int vrc = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)pDrv->pUpPort->pfnTakeScreenshot, 5,
2166	pDrv->pUpPort, &pu8Data, &cbData, &cx, &cy);
2167	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2168
2169	if (RT_SUCCESS(vrc))
2170	{
2171	if (cx == width && cy == height)
2172	{
2173	/* No scaling required. */
2174	memcpy(address, pu8Data, cbData);
2175	}
2176	else
2177	{
2178	/* Scale. */
2179	LogFlowFunc(("SCALE: %dx%d -> %dx%d\n", cx, cy, width, height));
2180
2181	uint8_t *dst = address;
2182	uint8_t *src = pu8Data;
2183	int dstX = 0;
2184	int dstY = 0;
2185	int srcX = 0;
2186	int srcY = 0;
2187	int dstW = width;
2188	int dstH = height;
2189	int srcW = cx;
2190	int srcH = cy;
2191	gdImageCopyResampled (dst,
2192	src,
2193	dstX, dstY,
2194	srcX, srcY,
2195	dstW, dstH, srcW, srcH);
2196	}
2197
2198	/* This can be called from any thread. */
2199	pDrv->pUpPort->pfnFreeScreenshot (pDrv->pUpPort, pu8Data);
2200	}
2201
2202	return vrc;
2203	}
2204
2205	STDMETHODIMP Display::TakeScreenShot (BYTE *address, ULONG width, ULONG height)
2206	{
2207	/// @todo (r=dmik) this function may take too long to complete if the VM
2208	// is doing something like saving state right now. Which, in case if it
2209	// is called on the GUI thread, will make it unresponsive. We should
2210	// check the machine state here (by enclosing the check and VMRequCall
2211	// within the Console lock to make it atomic).
2212
2213	LogFlowFuncEnter();
2214	LogFlowFunc (("address=%p, width=%d, height=%d\n",
2215	address, width, height));
2216
2217	CheckComArgNotNull(address);
2218	CheckComArgExpr(width, width != 0);
2219	CheckComArgExpr(height, height != 0);
2220
2221	AutoCaller autoCaller(this);
2222	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2223
2224	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2225
2226	CHECK_CONSOLE_DRV (mpDrv);
2227
2228	Console::SafeVMPtr pVM(mParent);
2229	if (FAILED(pVM.rc())) return pVM.rc();
2230
2231	HRESULT rc = S_OK;
2232
2233	LogFlowFunc (("Sending SCREENSHOT request\n"));
2234
2235	/* Leave lock because other thread (EMT) is called and it may initiate a resize
2236	* which also needs lock.
2237	*
2238	* This method does not need the lock anymore.
2239	*/
2240	alock.leave();
2241
2242	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2243	int vrc = displayTakeScreenshot(pVM, this, mpDrv, address, width, height);
2244	#else
2245	int vrc = displayTakeScreenshot(pVM, mpDrv, address, width, height);
2246	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2247
2248	if (vrc == VERR_NOT_IMPLEMENTED)
2249	rc = setError (E_NOTIMPL,
2250	tr ("This feature is not implemented"));
2251	else if (RT_FAILURE(vrc))
2252	rc = setError (VBOX_E_IPRT_ERROR,
2253	tr ("Could not take a screenshot (%Rrc)"), vrc);
2254
2255	LogFlowFunc (("rc=%08X\n", rc));
2256	LogFlowFuncLeave();
2257	return rc;
2258	}
2259
2260	STDMETHODIMP Display::TakeScreenShotSlow (ULONG width, ULONG height,
2261	ComSafeArrayOut(BYTE, aScreenData))
2262	{
2263	LogFlowFuncEnter();
2264	LogFlowFunc (("width=%d, height=%d\n",
2265	width, height));
2266
2267	CheckComArgSafeArrayNotNull(aScreenData);
2268	CheckComArgExpr(width, width != 0);
2269	CheckComArgExpr(height, height != 0);
2270
2271	AutoCaller autoCaller(this);
2272	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2273
2274	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2275
2276	CHECK_CONSOLE_DRV (mpDrv);
2277
2278	Console::SafeVMPtr pVM(mParent);
2279	if (FAILED(pVM.rc())) return pVM.rc();
2280
2281	HRESULT rc = S_OK;
2282
2283	LogFlowFunc (("Sending SCREENSHOT request\n"));
2284
2285	/* Leave lock because other thread (EMT) is called and it may initiate a resize
2286	* which also needs lock.
2287	*
2288	* This method does not need the lock anymore.
2289	*/
2290	alock.leave();
2291
2292	size_t cbData = width * 4 * height;
2293	uint8_t pu8Data = (uint8_t )RTMemAlloc(cbData);
2294
2295	if (!pu8Data)
2296	return E_OUTOFMEMORY;
2297
2298	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2299	int vrc = displayTakeScreenshot(pVM, this, mpDrv, pu8Data, width, height);
2300	#else
2301	int vrc = displayTakeScreenshot(pVM, mpDrv, pu8Data, width, height);
2302	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2303
2304	if (RT_SUCCESS(vrc))
2305	{
2306	/* Convert pixels to format expected by the API caller: [0] R, [1] G, [2] B, [3] A. */
2307	uint8_t *pu8 = pu8Data;
2308	unsigned cPixels = width * height;
2309	while (cPixels)
2310	{
2311	uint8_t u8 = pu8[0];
2312	pu8[0] = pu8[2];
2313	pu8[2] = u8;
2314	pu8[3] = 0xff;
2315	cPixels--;
2316	pu8 += 4;
2317	}
2318
2319	com::SafeArray<BYTE> screenData (cbData);
2320	for (unsigned i = 0; i < cbData; i++)
2321	screenData[i] = pu8Data[i];
2322	screenData.detachTo(ComSafeArrayOutArg(aScreenData));
2323	}
2324	else if (vrc == VERR_NOT_IMPLEMENTED)
2325	rc = setError (E_NOTIMPL,
2326	tr ("This feature is not implemented"));
2327	else
2328	rc = setError (VBOX_E_IPRT_ERROR,
2329	tr ("Could not take a screenshot (%Rrc)"), vrc);
2330
2331	LogFlowFunc (("rc=%08X\n", rc));
2332	LogFlowFuncLeave();
2333	return rc;
2334	}
2335
2336	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2337	int Display::DrawToScreenEMT(Display pDisplay, BYTE address, ULONG x, ULONG y, ULONG width, ULONG height)
2338	{
2339	int rc;
2340	pDisplay->vbvaLock();
2341	rc = pDisplay->mpDrv->pUpPort->pfnDisplayBlt(pDisplay->mpDrv->pUpPort, address, x, y, width, height);
2342	pDisplay->vbvaUnlock();
2343	return rc;
2344	}
2345	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2346
2347	STDMETHODIMP Display::DrawToScreen (BYTE *address, ULONG x, ULONG y,
2348	ULONG width, ULONG height)
2349	{
2350	/// @todo (r=dmik) this function may take too long to complete if the VM
2351	// is doing something like saving state right now. Which, in case if it
2352	// is called on the GUI thread, will make it unresponsive. We should
2353	// check the machine state here (by enclosing the check and VMRequCall
2354	// within the Console lock to make it atomic).
2355
2356	LogFlowFuncEnter();
2357	LogFlowFunc (("address=%p, x=%d, y=%d, width=%d, height=%d\n",
2358	(void *)address, x, y, width, height));
2359
2360	CheckComArgNotNull(address);
2361	CheckComArgExpr(width, width != 0);
2362	CheckComArgExpr(height, height != 0);
2363
2364	AutoCaller autoCaller(this);
2365	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2366
2367	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2368
2369	CHECK_CONSOLE_DRV (mpDrv);
2370
2371	Console::SafeVMPtr pVM(mParent);
2372	if (FAILED(pVM.rc())) return pVM.rc();
2373
2374	/*
2375	* Again we're lazy and make the graphics device do all the
2376	* dirty conversion work.
2377	*/
2378	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2379	int rcVBox = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)Display::DrawToScreenEMT, 6,
2380	this, address, x, y, width, height);
2381	#else
2382	int rcVBox = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)mpDrv->pUpPort->pfnDisplayBlt, 6,
2383	mpDrv->pUpPort, address, x, y, width, height);
2384	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2385
2386	/*
2387	* If the function returns not supported, we'll have to do all the
2388	* work ourselves using the framebuffer.
2389	*/
2390	HRESULT rc = S_OK;
2391	if (rcVBox == VERR_NOT_SUPPORTED \|\| rcVBox == VERR_NOT_IMPLEMENTED)
2392	{
2393	/** @todo implement generic fallback for screen blitting. */
2394	rc = E_NOTIMPL;
2395	}
2396	else if (RT_FAILURE(rcVBox))
2397	rc = setError (VBOX_E_IPRT_ERROR,
2398	tr ("Could not draw to the screen (%Rrc)"), rcVBox);
2399	//@todo
2400	// else
2401	// {
2402	// /* All ok. Redraw the screen. */
2403	// handleDisplayUpdate (x, y, width, height);
2404	// }
2405
2406	LogFlowFunc (("rc=%08X\n", rc));
2407	LogFlowFuncLeave();
2408	return rc;
2409	}
2410
2411	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2412	void Display::InvalidateAndUpdateEMT(Display *pDisplay)
2413	{
2414	pDisplay->vbvaLock();
2415	pDisplay->mpDrv->pUpPort->pfnUpdateDisplayAll(pDisplay->mpDrv->pUpPort);
2416	pDisplay->vbvaUnlock();
2417	}
2418	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2419
2420	/**
2421	* Does a full invalidation of the VM display and instructs the VM
2422	* to update it immediately.
2423	*
2424	* @returns COM status code
2425	*/
2426	STDMETHODIMP Display::InvalidateAndUpdate()
2427	{
2428	LogFlowFuncEnter();
2429
2430	AutoCaller autoCaller(this);
2431	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2432
2433	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
2434
2435	CHECK_CONSOLE_DRV (mpDrv);
2436
2437	Console::SafeVMPtr pVM(mParent);
2438	if (FAILED(pVM.rc())) return pVM.rc();
2439
2440	HRESULT rc = S_OK;
2441
2442	LogFlowFunc (("Sending DPYUPDATE request\n"));
2443
2444	/* Have to leave the lock when calling EMT. */
2445	alock.leave ();
2446
2447	/* pdm.h says that this has to be called from the EMT thread */
2448	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2449	int rcVBox = VMR3ReqCallVoidWait(pVM, VMCPUID_ANY, (PFNRT)Display::InvalidateAndUpdateEMT,
2450	1, this);
2451	#else
2452	int rcVBox = VMR3ReqCallVoidWait(pVM, VMCPUID_ANY,
2453	(PFNRT)mpDrv->pUpPort->pfnUpdateDisplayAll, 1, mpDrv->pUpPort);
2454	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2455	alock.enter ();
2456
2457	if (RT_FAILURE(rcVBox))
2458	rc = setError (VBOX_E_IPRT_ERROR,
2459	tr ("Could not invalidate and update the screen (%Rrc)"), rcVBox);
2460
2461	LogFlowFunc (("rc=%08X\n", rc));
2462	LogFlowFuncLeave();
2463	return rc;
2464	}
2465
2466	/**
2467	* Notification that the framebuffer has completed the
2468	* asynchronous resize processing
2469	*
2470	* @returns COM status code
2471	*/
2472	STDMETHODIMP Display::ResizeCompleted(ULONG aScreenId)
2473	{
2474	LogFlowFunc (("\n"));
2475
2476	/// @todo (dmik) can we AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); here?
2477	// do it when we switch this class to VirtualBoxBase_NEXT.
2478	// This will require general code review and may add some details.
2479	// In particular, we may want to check whether EMT is really waiting for
2480	// this notification, etc. It might be also good to obey the caller to make
2481	// sure this method is not called from more than one thread at a time
2482	// (and therefore don't use Display lock at all here to save some
2483	// milliseconds).
2484	AutoCaller autoCaller(this);
2485	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2486
2487	/* this is only valid for external framebuffers */
2488	if (maFramebuffers[aScreenId].pFramebuffer == NULL)
2489	return setError (VBOX_E_NOT_SUPPORTED,
2490	tr ("Resize completed notification is valid only "
2491	"for external framebuffers"));
2492
2493	/* Set the flag indicating that the resize has completed and display
2494	* data need to be updated. */
2495	bool f = ASMAtomicCmpXchgU32 (&maFramebuffers[aScreenId].u32ResizeStatus,
2496	ResizeStatus_UpdateDisplayData, ResizeStatus_InProgress);
2497	AssertRelease(f);NOREF(f);
2498
2499	return S_OK;
2500	}
2501
2502	/**
2503	* Notification that the framebuffer has completed the
2504	* asynchronous update processing
2505	*
2506	* @returns COM status code
2507	*/
2508	STDMETHODIMP Display::UpdateCompleted()
2509	{
2510	LogFlowFunc (("\n"));
2511
2512	/// @todo (dmik) can we AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS); here?
2513	// do it when we switch this class to VirtualBoxBase_NEXT.
2514	// Tthis will require general code review and may add some details.
2515	// In particular, we may want to check whether EMT is really waiting for
2516	// this notification, etc. It might be also good to obey the caller to make
2517	// sure this method is not called from more than one thread at a time
2518	// (and therefore don't use Display lock at all here to save some
2519	// milliseconds).
2520	AutoCaller autoCaller(this);
2521	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2522
2523	/* this is only valid for external framebuffers */
2524	if (maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer == NULL)
2525	return setError (VBOX_E_NOT_SUPPORTED,
2526	tr ("Resize completed notification is valid only "
2527	"for external framebuffers"));
2528
2529	return S_OK;
2530	}
2531
2532	STDMETHODIMP Display::CompleteVHWACommand(BYTE *pCommand)
2533	{
2534	#ifdef VBOX_WITH_VIDEOHWACCEL
2535	mpDrv->pVBVACallbacks->pfnVHWACommandCompleteAsynch(mpDrv->pVBVACallbacks, (PVBOXVHWACMD)pCommand);
2536	return S_OK;
2537	#else
2538	return E_NOTIMPL;
2539	#endif
2540	}
2541
2542	// private methods
2543	/////////////////////////////////////////////////////////////////////////////
2544
2545	/**
2546	* Helper to update the display information from the framebuffer.
2547	*
2548	* @param aCheckParams true to compare the parameters of the current framebuffer
2549	* and the new one and issue handleDisplayResize()
2550	* if they differ.
2551	* @thread EMT
2552	*/
2553	void Display::updateDisplayData (bool aCheckParams /* = false */)
2554	{
2555	/* the driver might not have been constructed yet */
2556	if (!mpDrv)
2557	return;
2558
2559	#if DEBUG
2560	/*
2561	* Sanity check. Note that this method may be called on EMT after Console
2562	* has started the power down procedure (but before our #drvDestruct() is
2563	* called, in which case pVM will aleady be NULL but mpDrv will not). Since
2564	* we don't really need pVM to proceed, we avoid this check in the release
2565	* build to save some ms (necessary to construct SafeVMPtrQuiet) in this
2566	* time-critical method.
2567	*/
2568	Console::SafeVMPtrQuiet pVM (mParent);
2569	if (pVM.isOk())
2570	VM_ASSERT_EMT (pVM.raw());
2571	#endif
2572
2573	/* The method is only relevant to the primary framebuffer. */
2574	IFramebuffer *pFramebuffer = maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN].pFramebuffer;
2575
2576	if (pFramebuffer)
2577	{
2578	HRESULT rc;
2579	BYTE *address = 0;
2580	rc = pFramebuffer->COMGETTER(Address) (&address);
2581	AssertComRC (rc);
2582	ULONG bytesPerLine = 0;
2583	rc = pFramebuffer->COMGETTER(BytesPerLine) (&bytesPerLine);
2584	AssertComRC (rc);
2585	ULONG bitsPerPixel = 0;
2586	rc = pFramebuffer->COMGETTER(BitsPerPixel) (&bitsPerPixel);
2587	AssertComRC (rc);
2588	ULONG width = 0;
2589	rc = pFramebuffer->COMGETTER(Width) (&width);
2590	AssertComRC (rc);
2591	ULONG height = 0;
2592	rc = pFramebuffer->COMGETTER(Height) (&height);
2593	AssertComRC (rc);
2594
2595	/*
2596	* Check current parameters with new ones and issue handleDisplayResize()
2597	* to let the new frame buffer adjust itself properly. Note that it will
2598	* result into a recursive updateDisplayData() call but with
2599	* aCheckOld = false.
2600	*/
2601	if (aCheckParams &&
2602	(mLastAddress != address \|\|
2603	mLastBytesPerLine != bytesPerLine \|\|
2604	mLastBitsPerPixel != bitsPerPixel \|\|
2605	mLastWidth != (int) width \|\|
2606	mLastHeight != (int) height))
2607	{
2608	handleDisplayResize (VBOX_VIDEO_PRIMARY_SCREEN, mLastBitsPerPixel,
2609	mLastAddress,
2610	mLastBytesPerLine,
2611	mLastWidth,
2612	mLastHeight);
2613	return;
2614	}
2615
2616	mpDrv->IConnector.pu8Data = (uint8_t *) address;
2617	mpDrv->IConnector.cbScanline = bytesPerLine;
2618	mpDrv->IConnector.cBits = bitsPerPixel;
2619	mpDrv->IConnector.cx = width;
2620	mpDrv->IConnector.cy = height;
2621	}
2622	else
2623	{
2624	/* black hole */
2625	mpDrv->IConnector.pu8Data = NULL;
2626	mpDrv->IConnector.cbScanline = 0;
2627	mpDrv->IConnector.cBits = 0;
2628	mpDrv->IConnector.cx = 0;
2629	mpDrv->IConnector.cy = 0;
2630	}
2631	}
2632
2633	/**
2634	* Changes the current frame buffer. Called on EMT to avoid both
2635	* race conditions and excessive locking.
2636	*
2637	* @note locks this object for writing
2638	* @thread EMT
2639	*/
2640	/* static */
2641	DECLCALLBACK(int) Display::changeFramebuffer (Display that, IFramebuffer aFB,
2642	unsigned uScreenId)
2643	{
2644	LogFlowFunc (("uScreenId = %d\n", uScreenId));
2645
2646	AssertReturn(that, VERR_INVALID_PARAMETER);
2647	AssertReturn(uScreenId < that->mcMonitors, VERR_INVALID_PARAMETER);
2648
2649	AutoCaller autoCaller(that);
2650	if (FAILED(autoCaller.rc())) return autoCaller.rc();
2651
2652	AutoWriteLock alock(that COMMA_LOCKVAL_SRC_POS);
2653
2654	DISPLAYFBINFO *pDisplayFBInfo = &that->maFramebuffers[uScreenId];
2655	pDisplayFBInfo->pFramebuffer = aFB;
2656
2657	that->mParent->consoleVRDPServer()->SendResize ();
2658
2659	that->updateDisplayData (true /* aCheckParams */);
2660
2661	return VINF_SUCCESS;
2662	}
2663
2664	/**
2665	* Handle display resize event issued by the VGA device for the primary screen.
2666	*
2667	* @see PDMIDISPLAYCONNECTOR::pfnResize
2668	*/
2669	DECLCALLBACK(int) Display::displayResizeCallback(PPDMIDISPLAYCONNECTOR pInterface,
2670	uint32_t bpp, void *pvVRAM, uint32_t cbLine, uint32_t cx, uint32_t cy)
2671	{
2672	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2673
2674	LogFlowFunc (("bpp %d, pvVRAM %p, cbLine %d, cx %d, cy %d\n",
2675	bpp, pvVRAM, cbLine, cx, cy));
2676
2677	return pDrv->pDisplay->handleDisplayResize(VBOX_VIDEO_PRIMARY_SCREEN, bpp, pvVRAM, cbLine, cx, cy);
2678	}
2679
2680	/**
2681	* Handle display update.
2682	*
2683	* @see PDMIDISPLAYCONNECTOR::pfnUpdateRect
2684	*/
2685	DECLCALLBACK(void) Display::displayUpdateCallback(PPDMIDISPLAYCONNECTOR pInterface,
2686	uint32_t x, uint32_t y, uint32_t cx, uint32_t cy)
2687	{
2688	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2689
2690	#ifdef DEBUG_sunlover
2691	LogFlowFunc (("mfVideoAccelEnabled = %d, %d,%d %dx%d\n",
2692	pDrv->pDisplay->mfVideoAccelEnabled, x, y, cx, cy));
2693	#endif /* DEBUG_sunlover */
2694
2695	/* This call does update regardless of VBVA status.
2696	* But in VBVA mode this is called only as result of
2697	* pfnUpdateDisplayAll in the VGA device.
2698	*/
2699
2700	pDrv->pDisplay->handleDisplayUpdate(x, y, cx, cy);
2701	}
2702
2703	/**
2704	* Periodic display refresh callback.
2705	*
2706	* @see PDMIDISPLAYCONNECTOR::pfnRefresh
2707	*/
2708	DECLCALLBACK(void) Display::displayRefreshCallback(PPDMIDISPLAYCONNECTOR pInterface)
2709	{
2710	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2711
2712	#ifdef DEBUG_sunlover
2713	STAM_PROFILE_START(&StatDisplayRefresh, a);
2714	#endif /* DEBUG_sunlover */
2715
2716	#ifdef DEBUG_sunlover_2
2717	LogFlowFunc (("pDrv->pDisplay->mfVideoAccelEnabled = %d\n",
2718	pDrv->pDisplay->mfVideoAccelEnabled));
2719	#endif /* DEBUG_sunlover_2 */
2720
2721	Display *pDisplay = pDrv->pDisplay;
2722	bool fNoUpdate = false; /* Do not update the display if any of the framebuffers is being resized. */
2723	unsigned uScreenId;
2724
2725	for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
2726	{
2727	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
2728
2729	/* Check the resize status. The status can be checked normally because
2730	* the status affects only the EMT.
2731	*/
2732	uint32_t u32ResizeStatus = pFBInfo->u32ResizeStatus;
2733
2734	if (u32ResizeStatus == ResizeStatus_UpdateDisplayData)
2735	{
2736	LogFlowFunc (("ResizeStatus_UpdateDisplayData %d\n", uScreenId));
2737	fNoUpdate = true; /* Always set it here, because pfnUpdateDisplayAll can cause a new resize. */
2738	/* The framebuffer was resized and display data need to be updated. */
2739	pDisplay->handleResizeCompletedEMT ();
2740	if (pFBInfo->u32ResizeStatus != ResizeStatus_Void)
2741	{
2742	/* The resize status could be not Void here because a pending resize is issued. */
2743	continue;
2744	}
2745	/* Continue with normal processing because the status here is ResizeStatus_Void. */
2746	if (uScreenId == VBOX_VIDEO_PRIMARY_SCREEN)
2747	{
2748	/* Repaint the display because VM continued to run during the framebuffer resize. */
2749	if (!pFBInfo->pFramebuffer.isNull())
2750	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2751	{
2752	pDisplay->vbvaLock();
2753	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2754	pDrv->pUpPort->pfnUpdateDisplayAll(pDrv->pUpPort);
2755	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2756	pDisplay->vbvaUnlock();
2757	}
2758	#endif /* VBOX_WITH_OLD_VBVA_LOCK */
2759	}
2760	}
2761	else if (u32ResizeStatus == ResizeStatus_InProgress)
2762	{
2763	/* The framebuffer is being resized. Do not call the VGA device back. Immediately return. */
2764	LogFlowFunc (("ResizeStatus_InProcess\n"));
2765	fNoUpdate = true;
2766	continue;
2767	}
2768	}
2769
2770	if (!fNoUpdate)
2771	{
2772	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2773	int rc = pDisplay->videoAccelRefreshProcess();
2774
2775	if (rc != VINF_TRY_AGAIN) /* Means 'do nothing' here. */
2776	{
2777	if (rc == VWRN_INVALID_STATE)
2778	{
2779	/* No VBVA do a display update. */
2780	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN];
2781	if (!pFBInfo->pFramebuffer.isNull() && pFBInfo->u32ResizeStatus == ResizeStatus_Void)
2782	{
2783	Assert(pDrv->IConnector.pu8Data);
2784	pDisplay->vbvaLock();
2785	pDrv->pUpPort->pfnUpdateDisplay(pDrv->pUpPort);
2786	pDisplay->vbvaUnlock();
2787	}
2788	}
2789
2790	/* Inform the VRDP server that the current display update sequence is
2791	* completed. At this moment the framebuffer memory contains a definite
2792	* image, that is synchronized with the orders already sent to VRDP client.
2793	* The server can now process redraw requests from clients or initial
2794	* fullscreen updates for new clients.
2795	*/
2796	for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
2797	{
2798	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
2799
2800	if (!pFBInfo->pFramebuffer.isNull() && pFBInfo->u32ResizeStatus == ResizeStatus_Void)
2801	{
2802	Assert (pDisplay->mParent && pDisplay->mParent->consoleVRDPServer());
2803	pDisplay->mParent->consoleVRDPServer()->SendUpdate (uScreenId, NULL, 0);
2804	}
2805	}
2806	}
2807	#else
2808	if (pDisplay->mfPendingVideoAccelEnable)
2809	{
2810	/* Acceleration was enabled while machine was not yet running
2811	* due to restoring from saved state. Update entire display and
2812	* actually enable acceleration.
2813	*/
2814	Assert(pDisplay->mpPendingVbvaMemory);
2815
2816	/* Acceleration can not be yet enabled.*/
2817	Assert(pDisplay->mpVbvaMemory == NULL);
2818	Assert(!pDisplay->mfVideoAccelEnabled);
2819
2820	if (pDisplay->mfMachineRunning)
2821	{
2822	pDisplay->VideoAccelEnable (pDisplay->mfPendingVideoAccelEnable,
2823	pDisplay->mpPendingVbvaMemory);
2824
2825	/* Reset the pending state. */
2826	pDisplay->mfPendingVideoAccelEnable = false;
2827	pDisplay->mpPendingVbvaMemory = NULL;
2828	}
2829	}
2830	else
2831	{
2832	Assert(pDisplay->mpPendingVbvaMemory == NULL);
2833
2834	if (pDisplay->mfVideoAccelEnabled)
2835	{
2836	Assert(pDisplay->mpVbvaMemory);
2837	pDisplay->VideoAccelFlush ();
2838	}
2839	else
2840	{
2841	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[VBOX_VIDEO_PRIMARY_SCREEN];
2842	if (!pFBInfo->pFramebuffer.isNull())
2843	{
2844	Assert(pDrv->IConnector.pu8Data);
2845	Assert(pFBInfo->u32ResizeStatus == ResizeStatus_Void);
2846	pDrv->pUpPort->pfnUpdateDisplay(pDrv->pUpPort);
2847	}
2848	}
2849
2850	/* Inform the VRDP server that the current display update sequence is
2851	* completed. At this moment the framebuffer memory contains a definite
2852	* image, that is synchronized with the orders already sent to VRDP client.
2853	* The server can now process redraw requests from clients or initial
2854	* fullscreen updates for new clients.
2855	*/
2856	for (uScreenId = 0; uScreenId < pDisplay->mcMonitors; uScreenId++)
2857	{
2858	DISPLAYFBINFO *pFBInfo = &pDisplay->maFramebuffers[uScreenId];
2859
2860	if (!pFBInfo->pFramebuffer.isNull() && pFBInfo->u32ResizeStatus == ResizeStatus_Void)
2861	{
2862	Assert (pDisplay->mParent && pDisplay->mParent->consoleVRDPServer());
2863	pDisplay->mParent->consoleVRDPServer()->SendUpdate (uScreenId, NULL, 0);
2864	}
2865	}
2866	}
2867	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2868	}
2869
2870	#ifdef DEBUG_sunlover
2871	STAM_PROFILE_STOP(&StatDisplayRefresh, a);
2872	#endif /* DEBUG_sunlover */
2873	#ifdef DEBUG_sunlover_2
2874	LogFlowFunc (("leave\n"));
2875	#endif /* DEBUG_sunlover_2 */
2876	}
2877
2878	/**
2879	* Reset notification
2880	*
2881	* @see PDMIDISPLAYCONNECTOR::pfnReset
2882	*/
2883	DECLCALLBACK(void) Display::displayResetCallback(PPDMIDISPLAYCONNECTOR pInterface)
2884	{
2885	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2886
2887	LogFlowFunc (("\n"));
2888
2889	/* Disable VBVA mode. */
2890	pDrv->pDisplay->VideoAccelEnable (false, NULL);
2891	}
2892
2893	/**
2894	* LFBModeChange notification
2895	*
2896	* @see PDMIDISPLAYCONNECTOR::pfnLFBModeChange
2897	*/
2898	DECLCALLBACK(void) Display::displayLFBModeChangeCallback(PPDMIDISPLAYCONNECTOR pInterface, bool fEnabled)
2899	{
2900	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2901
2902	LogFlowFunc (("fEnabled=%d\n", fEnabled));
2903
2904	NOREF(fEnabled);
2905
2906	/* Disable VBVA mode in any case. The guest driver reenables VBVA mode if necessary. */
2907	#ifdef VBOX_WITH_OLD_VBVA_LOCK
2908	/* This is called under DevVGA lock. Postpone disabling VBVA, do it in the refresh timer. */
2909	ASMAtomicWriteU32(&pDrv->pDisplay->mfu32PendingVideoAccelDisable, true);
2910	#else
2911	pDrv->pDisplay->VideoAccelEnable (false, NULL);
2912	#endif /* !VBOX_WITH_OLD_VBVA_LOCK */
2913	}
2914
2915	/**
2916	* Adapter information change notification.
2917	*
2918	* @see PDMIDISPLAYCONNECTOR::pfnProcessAdapterData
2919	*/
2920	DECLCALLBACK(void) Display::displayProcessAdapterDataCallback(PPDMIDISPLAYCONNECTOR pInterface, void *pvVRAM, uint32_t u32VRAMSize)
2921	{
2922	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
2923
2924	if (pvVRAM == NULL)
2925	{
2926	unsigned i;
2927	for (i = 0; i < pDrv->pDisplay->mcMonitors; i++)
2928	{
2929	DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[i];
2930
2931	pFBInfo->u32Offset = 0;
2932	pFBInfo->u32MaxFramebufferSize = 0;
2933	pFBInfo->u32InformationSize = 0;
2934	}
2935	}
2936	#ifndef VBOX_WITH_HGSMI
2937	else
2938	{
2939	uint8_t pu8 = (uint8_t )pvVRAM;
2940	pu8 += u32VRAMSize - VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
2941
2942	// @todo
2943	uint8_t *pu8End = pu8 + VBOX_VIDEO_ADAPTER_INFORMATION_SIZE;
2944
2945	VBOXVIDEOINFOHDR *pHdr;
2946
2947	for (;;)
2948	{
2949	pHdr = (VBOXVIDEOINFOHDR *)pu8;
2950	pu8 += sizeof (VBOXVIDEOINFOHDR);
2951
2952	if (pu8 >= pu8End)
2953	{
2954	LogRel(("VBoxVideo: Guest adapter information overflow!!!\n"));
2955	break;
2956	}
2957
2958	if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_DISPLAY)
2959	{
2960	if (pHdr->u16Length != sizeof (VBOXVIDEOINFODISPLAY))
2961	{
2962	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "DISPLAY", pHdr->u16Length));
2963	break;
2964	}
2965
2966	VBOXVIDEOINFODISPLAY pDisplay = (VBOXVIDEOINFODISPLAY )pu8;
2967
2968	if (pDisplay->u32Index >= pDrv->pDisplay->mcMonitors)
2969	{
2970	LogRel(("VBoxVideo: Guest adapter information invalid display index %d!!!\n", pDisplay->u32Index));
2971	break;
2972	}
2973
2974	DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[pDisplay->u32Index];
2975
2976	pFBInfo->u32Offset = pDisplay->u32Offset;
2977	pFBInfo->u32MaxFramebufferSize = pDisplay->u32FramebufferSize;
2978	pFBInfo->u32InformationSize = pDisplay->u32InformationSize;
2979
2980	LogFlow(("VBOX_VIDEO_INFO_TYPE_DISPLAY: %d: at 0x%08X, size 0x%08X, info 0x%08X\n", pDisplay->u32Index, pDisplay->u32Offset, pDisplay->u32FramebufferSize, pDisplay->u32InformationSize));
2981	}
2982	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_QUERY_CONF32)
2983	{
2984	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOQUERYCONF32))
2985	{
2986	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "CONF32", pHdr->u16Length));
2987	break;
2988	}
2989
2990	VBOXVIDEOINFOQUERYCONF32 pConf32 = (VBOXVIDEOINFOQUERYCONF32 )pu8;
2991
2992	switch (pConf32->u32Index)
2993	{
2994	case VBOX_VIDEO_QCI32_MONITOR_COUNT:
2995	{
2996	pConf32->u32Value = pDrv->pDisplay->mcMonitors;
2997	} break;
2998
2999	case VBOX_VIDEO_QCI32_OFFSCREEN_HEAP_SIZE:
3000	{
3001	/* @todo make configurable. */
3002	pConf32->u32Value = _1M;
3003	} break;
3004
3005	default:
3006	LogRel(("VBoxVideo: CONF32 %d not supported!!! Skipping.\n", pConf32->u32Index));
3007	}
3008	}
3009	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_END)
3010	{
3011	if (pHdr->u16Length != 0)
3012	{
3013	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "END", pHdr->u16Length));
3014	break;
3015	}
3016
3017	break;
3018	}
3019	else if (pHdr->u8Type != VBOX_VIDEO_INFO_TYPE_NV_HEAP) /** @todo why is Additions/WINNT/Graphics/Miniport/VBoxVideo.cpp pushing this to us? */
3020	{
3021	LogRel(("Guest adapter information contains unsupported type %d. The block has been skipped.\n", pHdr->u8Type));
3022	}
3023
3024	pu8 += pHdr->u16Length;
3025	}
3026	}
3027	#endif /* !VBOX_WITH_HGSMI */
3028	}
3029
3030	/**
3031	* Display information change notification.
3032	*
3033	* @see PDMIDISPLAYCONNECTOR::pfnProcessDisplayData
3034	*/
3035	DECLCALLBACK(void) Display::displayProcessDisplayDataCallback(PPDMIDISPLAYCONNECTOR pInterface, void *pvVRAM, unsigned uScreenId)
3036	{
3037	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3038
3039	if (uScreenId >= pDrv->pDisplay->mcMonitors)
3040	{
3041	LogRel(("VBoxVideo: Guest display information invalid display index %d!!!\n", uScreenId));
3042	return;
3043	}
3044
3045	/* Get the display information structure. */
3046	DISPLAYFBINFO *pFBInfo = &pDrv->pDisplay->maFramebuffers[uScreenId];
3047
3048	uint8_t pu8 = (uint8_t )pvVRAM;
3049	pu8 += pFBInfo->u32Offset + pFBInfo->u32MaxFramebufferSize;
3050
3051	// @todo
3052	uint8_t *pu8End = pu8 + pFBInfo->u32InformationSize;
3053
3054	VBOXVIDEOINFOHDR *pHdr;
3055
3056	for (;;)
3057	{
3058	pHdr = (VBOXVIDEOINFOHDR *)pu8;
3059	pu8 += sizeof (VBOXVIDEOINFOHDR);
3060
3061	if (pu8 >= pu8End)
3062	{
3063	LogRel(("VBoxVideo: Guest display information overflow!!!\n"));
3064	break;
3065	}
3066
3067	if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_SCREEN)
3068	{
3069	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOSCREEN))
3070	{
3071	LogRel(("VBoxVideo: Guest display information %s invalid length %d!!!\n", "SCREEN", pHdr->u16Length));
3072	break;
3073	}
3074
3075	VBOXVIDEOINFOSCREEN pScreen = (VBOXVIDEOINFOSCREEN )pu8;
3076
3077	pFBInfo->xOrigin = pScreen->xOrigin;
3078	pFBInfo->yOrigin = pScreen->yOrigin;
3079
3080	pFBInfo->w = pScreen->u16Width;
3081	pFBInfo->h = pScreen->u16Height;
3082
3083	LogFlow(("VBOX_VIDEO_INFO_TYPE_SCREEN: (%p) %d: at %d,%d, linesize 0x%X, size %dx%d, bpp %d, flags 0x%02X\n",
3084	pHdr, uScreenId, pScreen->xOrigin, pScreen->yOrigin, pScreen->u32LineSize, pScreen->u16Width, pScreen->u16Height, pScreen->bitsPerPixel, pScreen->u8Flags));
3085
3086	if (uScreenId != VBOX_VIDEO_PRIMARY_SCREEN)
3087	{
3088	/* Primary screen resize is initiated by the VGA device. */
3089	pDrv->pDisplay->handleDisplayResize(uScreenId, pScreen->bitsPerPixel, (uint8_t *)pvVRAM + pFBInfo->u32Offset, pScreen->u32LineSize, pScreen->u16Width, pScreen->u16Height);
3090	}
3091	}
3092	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_END)
3093	{
3094	if (pHdr->u16Length != 0)
3095	{
3096	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "END", pHdr->u16Length));
3097	break;
3098	}
3099
3100	break;
3101	}
3102	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_HOST_EVENTS)
3103	{
3104	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOHOSTEVENTS))
3105	{
3106	LogRel(("VBoxVideo: Guest display information %s invalid length %d!!!\n", "HOST_EVENTS", pHdr->u16Length));
3107	break;
3108	}
3109
3110	VBOXVIDEOINFOHOSTEVENTS pHostEvents = (VBOXVIDEOINFOHOSTEVENTS )pu8;
3111
3112	pFBInfo->pHostEvents = pHostEvents;
3113
3114	LogFlow(("VBOX_VIDEO_INFO_TYPE_HOSTEVENTS: (%p)\n",
3115	pHostEvents));
3116	}
3117	else if (pHdr->u8Type == VBOX_VIDEO_INFO_TYPE_LINK)
3118	{
3119	if (pHdr->u16Length != sizeof (VBOXVIDEOINFOLINK))
3120	{
3121	LogRel(("VBoxVideo: Guest adapter information %s invalid length %d!!!\n", "LINK", pHdr->u16Length));
3122	break;
3123	}
3124
3125	VBOXVIDEOINFOLINK pLink = (VBOXVIDEOINFOLINK )pu8;
3126	pu8 += pLink->i32Offset;
3127	}
3128	else
3129	{
3130	LogRel(("Guest display information contains unsupported type %d\n", pHdr->u8Type));
3131	}
3132
3133	pu8 += pHdr->u16Length;
3134	}
3135	}
3136
3137	#ifdef VBOX_WITH_VIDEOHWACCEL
3138
3139	void Display::handleVHWACommandProcess(PPDMIDISPLAYCONNECTOR pInterface, PVBOXVHWACMD pCommand)
3140	{
3141	unsigned id = (unsigned)pCommand->iDisplay;
3142	int rc = VINF_SUCCESS;
3143	if(id < mcMonitors)
3144	{
3145	IFramebuffer *pFramebuffer = maFramebuffers[id].pFramebuffer;
3146
3147	if (pFramebuffer != NULL)
3148	{
3149	pFramebuffer->Lock();
3150
3151	HRESULT hr = pFramebuffer->ProcessVHWACommand((BYTE*)pCommand);
3152	if(FAILED(hr))
3153	{
3154	rc = (hr == E_NOTIMPL) ? VERR_NOT_IMPLEMENTED : VERR_GENERAL_FAILURE;
3155	}
3156
3157	pFramebuffer->Unlock();
3158	}
3159	else
3160	{
3161	rc = VERR_NOT_IMPLEMENTED;
3162	}
3163	}
3164	else
3165	{
3166	rc = VERR_INVALID_PARAMETER;
3167	}
3168
3169	if(RT_FAILURE(rc))
3170	{
3171	/* tell the guest the command is complete */
3172	pCommand->Flags &= (~VBOXVHWACMD_FLAG_HG_ASYNCH);
3173	pCommand->rc = rc;
3174	}
3175	}
3176
3177	DECLCALLBACK(void) Display::displayVHWACommandProcess(PPDMIDISPLAYCONNECTOR pInterface, PVBOXVHWACMD pCommand)
3178	{
3179	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3180
3181	pDrv->pDisplay->handleVHWACommandProcess(pInterface, pCommand);
3182	}
3183	#endif
3184
3185	#ifdef VBOX_WITH_HGSMI
3186	DECLCALLBACK(int) Display::displayVBVAEnable(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId, PVBVAHOSTFLAGS pHostFlags)
3187	{
3188	LogFlowFunc(("uScreenId %d\n", uScreenId));
3189
3190	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3191	Display *pThis = pDrv->pDisplay;
3192
3193	pThis->maFramebuffers[uScreenId].fVBVAEnabled = true;
3194	pThis->maFramebuffers[uScreenId].pVBVAHostFlags = pHostFlags;
3195
3196	vbvaSetMemoryFlagsHGSMI(uScreenId, pThis->mfu32SupportedOrders, pThis->mfVideoAccelVRDP, &pThis->maFramebuffers[uScreenId]);
3197
3198	return VINF_SUCCESS;
3199	}
3200
3201	DECLCALLBACK(void) Display::displayVBVADisable(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId)
3202	{
3203	LogFlowFunc(("uScreenId %d\n", uScreenId));
3204
3205	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3206	Display *pThis = pDrv->pDisplay;
3207
3208	pThis->maFramebuffers[uScreenId].fVBVAEnabled = false;
3209
3210	vbvaSetMemoryFlagsHGSMI(uScreenId, 0, false, &pThis->maFramebuffers[uScreenId]);
3211
3212	pThis->maFramebuffers[uScreenId].pVBVAHostFlags = NULL;
3213	}
3214
3215	DECLCALLBACK(void) Display::displayVBVAUpdateBegin(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId)
3216	{
3217	LogFlowFunc(("uScreenId %d\n", uScreenId));
3218
3219	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3220	Display *pThis = pDrv->pDisplay;
3221	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[uScreenId];
3222
3223	if (ASMAtomicReadU32(&pThis->mu32UpdateVBVAFlags) > 0)
3224	{
3225	vbvaSetMemoryFlagsAllHGSMI(pThis->mfu32SupportedOrders, pThis->mfVideoAccelVRDP, pThis->maFramebuffers, pThis->mcMonitors);
3226	ASMAtomicDecU32(&pThis->mu32UpdateVBVAFlags);
3227	}
3228
3229	if (RT_LIKELY(pFBInfo->u32ResizeStatus == ResizeStatus_Void))
3230	{
3231	if (RT_UNLIKELY(pFBInfo->cVBVASkipUpdate != 0))
3232	{
3233	/* Some updates were skipped. Note: displayVBVAUpdate* callbacks are called
3234	* under display device lock, so thread safe.
3235	*/
3236	pFBInfo->cVBVASkipUpdate = 0;
3237	pThis->handleDisplayUpdate(pFBInfo->vbvaSkippedRect.xLeft,
3238	pFBInfo->vbvaSkippedRect.yTop,
3239	pFBInfo->vbvaSkippedRect.xRight - pFBInfo->vbvaSkippedRect.xLeft,
3240	pFBInfo->vbvaSkippedRect.yBottom - pFBInfo->vbvaSkippedRect.yTop);
3241	}
3242	}
3243	else
3244	{
3245	/* The framebuffer is being resized. */
3246	pFBInfo->cVBVASkipUpdate++;
3247	}
3248	}
3249
3250	DECLCALLBACK(void) Display::displayVBVAUpdateProcess(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId, const PVBVACMDHDR pCmd, size_t cbCmd)
3251	{
3252	LogFlowFunc(("uScreenId %d pCmd %p cbCmd %d\n", uScreenId, pCmd, cbCmd));
3253
3254	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3255	Display *pThis = pDrv->pDisplay;
3256	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[uScreenId];
3257
3258	if (RT_LIKELY(pFBInfo->cVBVASkipUpdate == 0))
3259	{
3260	if (pFBInfo->fDefaultFormat)
3261	{
3262	pDrv->pUpPort->pfnUpdateDisplayRect (pDrv->pUpPort, pCmd->x, pCmd->y, pCmd->w, pCmd->h);
3263	pThis->handleDisplayUpdate (pCmd->x + pFBInfo->xOrigin,
3264	pCmd->y + pFBInfo->yOrigin, pCmd->w, pCmd->h);
3265	}
3266
3267	pThis->mParent->consoleVRDPServer()->SendUpdate (uScreenId, pCmd, cbCmd);
3268	}
3269	}
3270
3271	DECLCALLBACK(void) Display::displayVBVAUpdateEnd(PPDMIDISPLAYCONNECTOR pInterface, unsigned uScreenId, int32_t x, int32_t y, uint32_t cx, uint32_t cy)
3272	{
3273	LogFlowFunc(("uScreenId %d %d,%d %dx%d\n", uScreenId, x, y, cx, cy));
3274
3275	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3276	Display *pThis = pDrv->pDisplay;
3277	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[uScreenId];
3278
3279	/* @todo handleFramebufferUpdate (uScreenId,
3280	* x - pThis->maFramebuffers[uScreenId].xOrigin,
3281	* y - pThis->maFramebuffers[uScreenId].yOrigin,
3282	* cx, cy);
3283	*/
3284	if (RT_LIKELY(pFBInfo->cVBVASkipUpdate == 0))
3285	{
3286	pThis->handleDisplayUpdate(x, y, cx, cy);
3287	}
3288	else
3289	{
3290	/* Save the updated rectangle. */
3291	int32_t xRight = x + cx;
3292	int32_t yBottom = y + cy;
3293
3294	if (pFBInfo->cVBVASkipUpdate == 1)
3295	{
3296	pFBInfo->vbvaSkippedRect.xLeft = x;
3297	pFBInfo->vbvaSkippedRect.yTop = y;
3298	pFBInfo->vbvaSkippedRect.xRight = xRight;
3299	pFBInfo->vbvaSkippedRect.yBottom = yBottom;
3300	}
3301	else
3302	{
3303	if (pFBInfo->vbvaSkippedRect.xLeft > x)
3304	{
3305	pFBInfo->vbvaSkippedRect.xLeft = x;
3306	}
3307	if (pFBInfo->vbvaSkippedRect.yTop > y)
3308	{
3309	pFBInfo->vbvaSkippedRect.yTop = y;
3310	}
3311	if (pFBInfo->vbvaSkippedRect.xRight < xRight)
3312	{
3313	pFBInfo->vbvaSkippedRect.xRight = xRight;
3314	}
3315	if (pFBInfo->vbvaSkippedRect.yBottom < yBottom)
3316	{
3317	pFBInfo->vbvaSkippedRect.yBottom = yBottom;
3318	}
3319	}
3320	}
3321	}
3322
3323	DECLCALLBACK(int) Display::displayVBVAResize(PPDMIDISPLAYCONNECTOR pInterface, const PVBVAINFOVIEW pView, const PVBVAINFOSCREEN pScreen, void *pvVRAM)
3324	{
3325	LogFlowFunc(("pScreen %p, pvVRAM %p\n", pScreen, pvVRAM));
3326
3327	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3328	Display *pThis = pDrv->pDisplay;
3329
3330	DISPLAYFBINFO *pFBInfo = &pThis->maFramebuffers[pScreen->u32ViewIndex];
3331
3332	pFBInfo->u32Offset = pView->u32ViewOffset; /* Not used in HGSMI. */
3333	pFBInfo->u32MaxFramebufferSize = pView->u32MaxScreenSize; /* Not used in HGSMI. */
3334	pFBInfo->u32InformationSize = 0; /* Not used in HGSMI. */
3335
3336	pFBInfo->xOrigin = pScreen->i32OriginX;
3337	pFBInfo->yOrigin = pScreen->i32OriginY;
3338
3339	pFBInfo->w = pScreen->u32Width;
3340	pFBInfo->h = pScreen->u32Height;
3341
3342	return pThis->handleDisplayResize(pScreen->u32ViewIndex, pScreen->u16BitsPerPixel,
3343	(uint8_t *)pvVRAM + pScreen->u32StartOffset,
3344	pScreen->u32LineSize, pScreen->u32Width, pScreen->u32Height);
3345	}
3346
3347	DECLCALLBACK(int) Display::displayVBVAMousePointerShape(PPDMIDISPLAYCONNECTOR pInterface, bool fVisible, bool fAlpha,
3348	uint32_t xHot, uint32_t yHot,
3349	uint32_t cx, uint32_t cy,
3350	const void *pvShape)
3351	{
3352	LogFlowFunc(("\n"));
3353
3354	PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);
3355	Display *pThis = pDrv->pDisplay;
3356
3357	/* Tell the console about it */
3358	pDrv->pDisplay->mParent->onMousePointerShapeChange(fVisible, fAlpha,
3359	xHot, yHot, cx, cy, (void *)pvShape);
3360
3361	return VINF_SUCCESS;
3362	}
3363	#endif /* VBOX_WITH_HGSMI */
3364
3365	/**
3366	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
3367	*/
3368	DECLCALLBACK(void ) Display::drvQueryInterface(PPDMIBASE pInterface, const char pszIID)
3369	{
3370	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
3371	PDRVMAINDISPLAY pDrv = PDMINS_2_DATA(pDrvIns, PDRVMAINDISPLAY);
3372	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
3373	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIDISPLAYCONNECTOR, &pDrv->IConnector);
3374	return NULL;
3375	}
3376
3377
3378	/**
3379	* Destruct a display driver instance.
3380	*
3381	* @returns VBox status.
3382	* @param pDrvIns The driver instance data.
3383	*/
3384	DECLCALLBACK(void) Display::drvDestruct(PPDMDRVINS pDrvIns)
3385	{
3386	PDRVMAINDISPLAY pData = PDMINS_2_DATA(pDrvIns, PDRVMAINDISPLAY);
3387	LogFlowFunc (("iInstance=%d\n", pDrvIns->iInstance));
3388	PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
3389
3390	if (pData->pDisplay)
3391	{
3392	AutoWriteLock displayLock(pData->pDisplay COMMA_LOCKVAL_SRC_POS);
3393	pData->pDisplay->mpDrv = NULL;
3394	pData->pDisplay->mpVMMDev = NULL;
3395	pData->pDisplay->mLastAddress = NULL;
3396	pData->pDisplay->mLastBytesPerLine = 0;
3397	pData->pDisplay->mLastBitsPerPixel = 0,
3398	pData->pDisplay->mLastWidth = 0;
3399	pData->pDisplay->mLastHeight = 0;
3400	}
3401	}
3402
3403
3404	/**
3405	* Construct a display driver instance.
3406	*
3407	* @copydoc FNPDMDRVCONSTRUCT
3408	*/
3409	DECLCALLBACK(int) Display::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
3410	{
3411	PDRVMAINDISPLAY pData = PDMINS_2_DATA(pDrvIns, PDRVMAINDISPLAY);
3412	LogFlowFunc (("iInstance=%d\n", pDrvIns->iInstance));
3413	PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
3414
3415	/*
3416	* Validate configuration.
3417	*/
3418	if (!CFGMR3AreValuesValid(pCfg, "Object\0"))
3419	return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
3420	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
3421	("Configuration error: Not possible to attach anything to this driver!\n"),
3422	VERR_PDM_DRVINS_NO_ATTACH);
3423
3424	/*
3425	* Init Interfaces.
3426	*/
3427	pDrvIns->IBase.pfnQueryInterface = Display::drvQueryInterface;
3428
3429	pData->IConnector.pfnResize = Display::displayResizeCallback;
3430	pData->IConnector.pfnUpdateRect = Display::displayUpdateCallback;
3431	pData->IConnector.pfnRefresh = Display::displayRefreshCallback;
3432	pData->IConnector.pfnReset = Display::displayResetCallback;
3433	pData->IConnector.pfnLFBModeChange = Display::displayLFBModeChangeCallback;
3434	pData->IConnector.pfnProcessAdapterData = Display::displayProcessAdapterDataCallback;
3435	pData->IConnector.pfnProcessDisplayData = Display::displayProcessDisplayDataCallback;
3436	#ifdef VBOX_WITH_VIDEOHWACCEL
3437	pData->IConnector.pfnVHWACommandProcess = Display::displayVHWACommandProcess;
3438	#endif
3439	#ifdef VBOX_WITH_HGSMI
3440	pData->IConnector.pfnVBVAEnable = Display::displayVBVAEnable;
3441	pData->IConnector.pfnVBVADisable = Display::displayVBVADisable;
3442	pData->IConnector.pfnVBVAUpdateBegin = Display::displayVBVAUpdateBegin;
3443	pData->IConnector.pfnVBVAUpdateProcess = Display::displayVBVAUpdateProcess;
3444	pData->IConnector.pfnVBVAUpdateEnd = Display::displayVBVAUpdateEnd;
3445	pData->IConnector.pfnVBVAResize = Display::displayVBVAResize;
3446	pData->IConnector.pfnVBVAMousePointerShape = Display::displayVBVAMousePointerShape;
3447	#endif
3448
3449
3450	/*
3451	* Get the IDisplayPort interface of the above driver/device.
3452	*/
3453	pData->pUpPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIDISPLAYPORT);
3454	if (!pData->pUpPort)
3455	{
3456	AssertMsgFailed(("Configuration error: No display port interface above!\n"));
3457	return VERR_PDM_MISSING_INTERFACE_ABOVE;
3458	}
3459	#if defined(VBOX_WITH_VIDEOHWACCEL)
3460	pData->pVBVACallbacks = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIDISPLAYVBVACALLBACKS);
3461	if (!pData->pVBVACallbacks)
3462	{
3463	AssertMsgFailed(("Configuration error: No VBVA callback interface above!\n"));
3464	return VERR_PDM_MISSING_INTERFACE_ABOVE;
3465	}
3466	#endif
3467	/*
3468	* Get the Display object pointer and update the mpDrv member.
3469	*/
3470	void *pv;
3471	int rc = CFGMR3QueryPtr(pCfg, "Object", &pv);
3472	if (RT_FAILURE(rc))
3473	{
3474	AssertMsgFailed(("Configuration error: No/bad \"Object\" value! rc=%Rrc\n", rc));
3475	return rc;
3476	}
3477	pData->pDisplay = (Display )pv; /* @todo Check this cast! */
3478	pData->pDisplay->mpDrv = pData;
3479
3480	/*
3481	* Update our display information according to the framebuffer
3482	*/
3483	pData->pDisplay->updateDisplayData();
3484
3485	/*
3486	* Start periodic screen refreshes
3487	*/
3488	pData->pUpPort->pfnSetRefreshRate(pData->pUpPort, 20);
3489
3490	return VINF_SUCCESS;
3491	}
3492
3493
3494	/**
3495	* Display driver registration record.
3496	*/
3497	const PDMDRVREG Display::DrvReg =
3498	{
3499	/* u32Version */
3500	PDM_DRVREG_VERSION,
3501	/* szName */
3502	"MainDisplay",
3503	/* szRCMod */
3504	"",
3505	/* szR0Mod */
3506	"",
3507	/* pszDescription */
3508	"Main display driver (Main as in the API).",
3509	/* fFlags */
3510	PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
3511	/* fClass. */
3512	PDM_DRVREG_CLASS_DISPLAY,
3513	/* cMaxInstances */
3514	~0,
3515	/* cbInstance */
3516	sizeof(DRVMAINDISPLAY),
3517	/* pfnConstruct */
3518	Display::drvConstruct,
3519	/* pfnDestruct */
3520	Display::drvDestruct,
3521	/* pfnRelocate */
3522	NULL,
3523	/* pfnIOCtl */
3524	NULL,
3525	/* pfnPowerOn */
3526	NULL,
3527	/* pfnReset */
3528	NULL,
3529	/* pfnSuspend */
3530	NULL,
3531	/* pfnResume */
3532	NULL,
3533	/* pfnAttach */
3534	NULL,
3535	/* pfnDetach */
3536	NULL,
3537	/* pfnPowerOff */
3538	NULL,
3539	/* pfnSoftReset */
3540	NULL,
3541	/* u32EndVersion */
3542	PDM_DRVREG_VERSION
3543	};
3544	/* vi: set tabstop=4 shiftwidth=4 expandtab: */

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source: vbox/trunk/src/VBox/Main/DisplayImpl.cpp@ 26173

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